Conflicts:
- src/go/types/check_test.go
CL 324730 on dev.typeparams changed the directory paths in TestCheck,
TestExamples, and TestFixedbugs and renamed checkFiles to testFiles;
whereas CL 337529 on master added a new test case just above them and
that used checkFiles.
Merge List:
+ 2021-08-12 46fd547d89 internal/goversion: update Version to 1.18
+ 2021-08-12 5805efc78e doc/go1.17: remove draft notice
+ 2021-08-12 39634e7dae CONTRIBUTORS: update for the Go 1.17 release
+ 2021-08-12 095bb790e1 os/exec: re-enable LookPathTest/16
+ 2021-08-11 dea23e9ca8 src/make.*: make --no-clean flag a no-op that prints a warning
+ 2021-08-11 d4c0ed26ac doc/go1.17: linker passes -I to extld as -Wl,--dynamic-linker
+ 2021-08-10 1f9c9d8530 doc: use "high address/low address" instead of "top/bottom"
+ 2021-08-09 f1dce319ff cmd/go: with -mod=vendor, don't panic if there are duplicate requirements
+ 2021-08-09 7aeaad5c86 runtime/cgo: when using msan explicitly unpoison cgoCallers
+ 2021-08-08 507cc341ec doc: add example for conversion from slice expressions to array ptr
+ 2021-08-07 891547e2d4 doc/go1.17: fix a typo introduced in CL 335135
+ 2021-08-06 8eaf4d16bc make.bash: do not overwrite GO_LDSO if already set
+ 2021-08-06 63b968f4f8 doc/go1.17: clarify Modules changes
+ 2021-08-06 70546f6404 runtime: allow arm64 SEH to be called if illegal instruction
+ 2021-08-05 fd45e267c2 runtime: warn that KeepAlive is not an unsafe.Pointer workaround
+ 2021-08-04 6e738868a7 net/http: speed up and deflake TestCancelRequestWhenSharingConnection
+ 2021-08-02 8a7ee4c51e io/fs: don't use absolute path in DirEntry.Name doc
+ 2021-07-31 b8ca6e59ed all: gofmt
+ 2021-07-30 b7a85e0003 net/http/httputil: close incoming ReverseProxy request body
+ 2021-07-29 70fd4e47d7 runtime: avoid possible preemption when returning from Go to C
+ 2021-07-28 9eee0ed439 cmd/go: fix go.mod file name printed in error messages for replacements
+ 2021-07-28 b39e0f461c runtime: don't crash on nil pointers in checkptrAlignment
+ 2021-07-27 7cd10c1149 cmd/go: use .mod instead of .zip to determine if version has go.mod file
+ 2021-07-27 c8cf0f74e4 cmd/go: add missing flag in UsageLine
+ 2021-07-27 7ba8e796c9 testing: clarify T.Name returns a distinct name of the running test
+ 2021-07-27 33ff155970 go/types: preserve untyped constants on the RHS of a shift expression
+ 2021-07-26 840e583ff3 runtime: correct variable name in comment
+ 2021-07-26 bfbb288574 runtime: remove adjustTimers counter
+ 2021-07-26 9c81fd53b3 cmd/vet: add missing copyright header
Change-Id: Ia80604d24c6f4205265683024e3100769cf32065
The type substituter (typecheck.Typ()) was temporarily substituting from
shapes back to concrete types, but doesn't need to anymore. So, remove
two shape checks, so the type substituter is now only for substituting
type params again.
Several other cleanups:
- renamed makeGenericName() to makeInstName1(), since that function is
a helper to MakeInstName() and MakeDictName() that definitely makes
instantiated names, not generic names.
- removed the logic in makeInstName1() that adds the ".inst." prefix
for concrete type args. We are only specifying concrete type args (as
opposed to shape args) when we are calling from MakeDictName, and
then we immediately strip of the .inst prefix anyway.
- Added a comment on types.Identical that a shape type is considered
identicall to another type if their underlying types are the same, or
they are both pointers.
Change-Id: I3e0206dbd403897797ae7bec3c527ae16b0b930a
Reviewed-on: https://go-review.googlesource.com/c/go/+/341729
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
This update was created using the updatecontrib command:
go get golang.org/x/build/cmd/updatecontrib
cd gotip
GO111MODULE=off updatecontrib
With manual changes based on publicly available information
to canonicalize letter case and formatting for a few names.
For #12042.
Change-Id: I96718c0fe438cd97b62499a027252748a1fa0779
Reviewed-on: https://go-review.googlesource.com/c/go/+/341709
Trust: Carlos Amedee <carlos@golang.org>
Run-TryBot: Carlos Amedee <carlos@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
This flag is undocumented and is no longer useful. Users who want to
install additional toolchains without cleaning the installed packages
should just use `go install`.
This CL changes cmd/dist to print a warning that --no-clean is
deprecated and to advise users to use `go install std cmd` instead,
and then otherwise ignores it:
```
$ ./make.bash --no-clean
Building Go cmd/dist using $GOROOT_BOOTSTRAP. (devel +b7a85e0003 linux/amd64)
warning: --no-clean is deprecated and has no effect; use 'go install std cmd' instead
Building Go toolchain1 using $GOROOT_BOOTSTRAP.
```
Fixes#47204.
Change-Id: I275031832098401a49e491e324e8de3427973630
Reviewed-on: https://go-review.googlesource.com/c/go/+/341392
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This is a temporary change. We will revert this back before the 1.18
release. We make this change now to simplify testing, since a lot of
tools will break on the new export version.
Updates #47654.
Change-Id: I0650fa753bb11229c71254d779dd61b5c1af9cdf
Reviewed-on: https://go-review.googlesource.com/c/go/+/341211
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
In Go 1.17 we added register ABI on AMD64 on Linux/macOS/Windows
as a GOEXPERIMENT, on by default. In Go 1.18, we commit to always
enabling register ABI on AMD64.
Now "go build" for AMD64 always have goexperiment.regabi* tags
set. However, at bootstrapping cmd/dist does not set the tags
when building go_bootstrap. For this to work, unfortunately, we
need to hard-code AMD64 to use register ABI in runtime code.
Change-Id: I0b31e678e186b9cdeeb8502cd9e38ed0d7e72d4f
Reviewed-on: https://go-review.googlesource.com/c/go/+/341151
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Austin Clements <austin@google.com>
Calling SetTArgs without substituting can leave the type in incoherent
state, so we should avoid exposing this API unless necessary. Since it
is currently not used by the importer(s), it is probably not necessary
to expose for 1.18, so remove it.
Change-Id: I06bd7b5bbfacd3c65e2e66a9d5980f20cd1c10c1
Reviewed-on: https://go-review.googlesource.com/c/go/+/341290
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
The TypeSet API is very new and probably not necessary to expose outside
of go/types, at least for 1.18. Users can check whether a type is
contained within a type set via Implements, and can access the
representation of the type set via the embedded Unions.
Change-Id: Icc7355285785bee5aa7a8fe74052bcb0fedcd0a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/341289
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Added new export tags 'G' and 'U' to export parameterized
functions/methods and parameterized types respectively. This has the
advantage that the Go 1.18 format remains backward-compatible with the
Go 1.17 format if no type parameters are exported.
Change-Id: I9dba8faaa65609eb3f9c693bd0c79daee98bd865
Reviewed-on: https://go-review.googlesource.com/c/go/+/340989
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Update vendored golang.org/x/tools repo to pick up CL 339250 for
assembly function check for register ABI.
This is done with
cd GOROOT/cmd
go get golang.org/x/tools@master
go mod tidy
go mod vendor
Update cmd/vet tests as the error ouput changes in CL 301949.
The error message now includes full package-qualified name.
Change-Id: I52dc7223aee9e011214254488bacf02dc5b4c2ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/341149
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
Add the respective check and add missing bodies to tests.
Use {} as body for functions that don't return a result.
Use { panic(0) } as body for functions that return a result.
For #47069.
Change-Id: Ia5d7525c9c036baf8a955d13bff448401e08235e
Reviewed-on: https://go-review.googlesource.com/c/go/+/340911
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Now that the pointer identity for a *Named type doesn't change
anymore when going from lazy instantiated to actually instantiated
(= expanded) state, expand() only needs to be called when we deal
with *Named types and only if we care about a *Named type's internals.
Remove the expand function and respective calls for all types and
replace with specific t.expand() method calls where t is a *Named.
Change-Id: If82299360d60108b00adc4013b29399aec90b940
Reviewed-on: https://go-review.googlesource.com/c/go/+/340749
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
The current document uses the "top" and "bottom" when talking
about the address within a frame, which may easily lead to
misunderstandings. This patch directly uses "high address"
and "low address" to make the expression clearer.
Change-Id: I7469330bbdc158672d7f0314fe6680ebdd9ab79a
Reviewed-on: https://go-review.googlesource.com/c/go/+/339369
Trust: fannie zhang <Fannie.Zhang@arm.com>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
types2.Constraint() returns the top-level constraint type, including any
unions or other interface elements. Because of that, we needed to
add/fix some code in the type substituter and generic type instantiater
in the importer to deal with unions and non-method members of an
interface. Also, NewUnion was not correctly setting the HasTParam flag.
I also added a better error message when a symbol is not found in
(*deadcodePass).decodeIfaceMethod().
Change-Id: Id3668dc596dce63690fa05a9e5e42295b5e2bbb5
Reviewed-on: https://go-review.googlesource.com/c/go/+/340670
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
In loadModFile with -mod=vendor, load the vendor list and use it to
initialize the module graph before calling updateRoots.
In updateLazyRoots with any mode other than "mod", return the original
*Requirements if no roots needed to be upgraded, even if there are
inconsistencies. This means 'go list -m -mod=readonly' and -mod=vendor
may succeed if there are duplicate requirements or requirements on
versions of the main module.
Fixes#47565
Change-Id: I4640dffc4a7359367cc910da0d29e3538bfd1ca4
Reviewed-on: https://go-review.googlesource.com/c/go/+/340252
Trust: Jay Conrod <jayconrod@google.com>
Trust: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
In the cases where we do an early call to typecheckaste() in noder to
expose CONVIFACE nodes, we need a preceding call to transformArgs().
This is needed to allow typecheckaste() to run correctly, in the case of
f(g()), where g has multiple return values.
I also cleaned up the code a bit and commented the code in Call(), and
we do the call to typecheckaste() in several more cases.
In stencil.go:stencil(), I moved the transformCall earlier for the
OCALLMETH/ODOTMETH case, just as I did in my previous CL for
OCALL/OFUNCINST. By doing this, transformArgs no longer needs to deal
with the extra dictionary args. Therefore, I was able to simply
transformArgs() to look like typecheckargs() again, and make use of
RewriteMultiValue directly.
Updates #47514
Change-Id: I49eb82ac05707e50c2e2fb03e39458a70491d406
Reviewed-on: https://go-review.googlesource.com/c/go/+/340531
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Simplify the implementation of interface conversions in the compiler.
Don't pass fields that aren't needed (the data word, usually) to the runtime.
For generics, we need to put a dynamic type in an interface. The new
dataWord function is exactly what we need (the type word will come
from a dictionary).
Change-Id: Iade5de5c174854b65ad248f35c7893c603f7be3d
Reviewed-on: https://go-review.googlesource.com/c/go/+/340029
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
This avoids an incorrect msan uninitialized memory report when using
runtime.SetCgoTraceback when a signal occurs while the fifth argument
register is undefined. See the issue for more details.
Fixes#47543
Change-Id: I3d1b673e2c93471ccdae0171a99b88b5a6062840
Reviewed-on: https://go-review.googlesource.com/c/go/+/339902
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
types2 now determines type parameter indices lazily, so we don't need
them just as we are importing. We set them in types1 as we are importing
the type param list itself.
type param indices are not strongly needed in types1 - we only use them
in one place which could be rewritten. But I kept them in analogy to
types2 (TypeParam.Index).
Fixes#47451
Change-Id: I30631f95c45a259354eaf7ec5194f71e799eb358
Reviewed-on: https://go-review.googlesource.com/c/go/+/340532
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Trust: Dan Scales <danscales@google.com>
Writing CL 333629 clarified my thinking about the behavioral changes
associated with lazy loading. There are really two interrelated
changes — graph pruning, and lazy loading proper — that are both made
possible by the added redundancy in the go.mod file.
(I had initially approached the whole cluster of features as “lazy
loading” because that was the starting point for the design. Graph
pruning came into the picture when we looked at how to bound the
worst-case behavior of lazy loading, but it is really the more
important of the two aspects of the design.)
Note that this change adds links to doc anchors added in CL 333629.
Fixes#36460Fixes#47397
Change-Id: I0ef4af57f647bf5ee210ea7099191fb4befa2cc1
Reviewed-on: https://go-review.googlesource.com/c/go/+/335135
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Interface.Complete is not needed anymore. We can remove it in
types2 (and eventually make it an empty function in go/types,
where we must maintain the existing API).
Change-Id: I689f0d6f3a83997d8ca5bae773b9af0083d0bf4f
Reviewed-on: https://go-review.googlesource.com/c/go/+/340255
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
At the moment, operations on termlists are O(n^2).
This is fine for normal-sized unions, but overlong
termlist lenghts will lead to excessive type checking
times.
Limit the length of termlists to avoid "compilations
that don't finish".
Change-Id: I39a7fc61b01c9db06faeb49a0e014b1ede532710
Reviewed-on: https://go-review.googlesource.com/c/go/+/340254
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Instead of providing a list of tildes and types, use a list of
Terms to create a Union, with suitable accessors.
Define the (exported) notion of a Term representing a union term.
This simplified various uses and also will be easier to extend
should we want to add more information to a Term in the future.
Change-Id: I52fd73938bfa11bac60adbf10580b6d0680df4f1
Reviewed-on: https://go-review.googlesource.com/c/go/+/340250
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
For range expressions of type parameter type, the structural type
of the type parameter's constraint determines the range operation.
While at it, rename implicitArrayDeref to arrayPtrDeref.
Change-Id: Ib631a8a14e717498e5264944f659309df1f68cc2
Reviewed-on: https://go-review.googlesource.com/c/go/+/339897
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
- use the symbol 𝓤 (as in 𝓤niverse) instead of ⊤ to denote the set
of all types (for better readabilty, ⊤ is hard to distinguish from
T in some fonts)
- use isAll instead of isTop to test for the set of all types
- use allTermlist instead of topTermlist to denote the termlist
representing all types
Change-Id: Idcb0b3398782b38653338e65173c0dbb935e430a
Reviewed-on: https://go-review.googlesource.com/c/go/+/339891
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Simple change - added some comments, but also removed some TODO comments
which are now done or no longer a question. Cleaned up the initial check
for generic methods.
The one remaining TODO that really needs to be done is generating
dictionary wrappers for any methods involving embedded fields. Given we
are not doing this, I think this would only affect if a struct with an
embedded field with methods was converted to an interface containing the
embedded method, and then the method was called via that interface.
Change-Id: I6a8a2885de33ad60b313c1899b659daef7550dfb
Reviewed-on: https://go-review.googlesource.com/c/go/+/340260
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Do the transformCall using the original types2-derived type of the call
(in particular, the types of the params as non-shapes). Currently, since
we were using the param types of the instantiation, we might add in
interface conversions to an interface with shapes in the one case of a
full-instantiated generic call. So, we do the transformCall() before
installing the shaped-based instantiation. transformCall() works
correctly even in the case of OCALL/FUNCINST.
Fixed two related bugs:
- Fixed case where we still were not correctly substituting the types
for a function instantiation.
- The type substituter needs to copy field flags while substituting in
tstruct.
Change-Id: I14e960737d6840a75846ede480e6650534ba3af3
Reviewed-on: https://go-review.googlesource.com/c/go/+/340259
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Closures inside generic functions were being added to the g.target.Decls
list during noding, just like other closures. We remove generic
functions/methods from g.target.Decls, so they don't get compiled
(they're only available for export and stenciling). Most closures inside
generic functions/methods were similarly being removed from
g.target.Decls, because they have a generic parameter. But we need to
ensure no closures in generic function/methods are left remaining in
g.target.Decls, since we don't want them transformed and compiled.
So, we set a flag in (*irgen) that records when we are noding a
top-level generic function/method, and don't add any closures to
g.target.Decls when the flag is true.
Updates #47514
Change-Id: Id66b4c41d307ffa8f54cab6ce3646ade81606862
Reviewed-on: https://go-review.googlesource.com/c/go/+/340258
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
DLLs built with recent Microsoft toolchains for ARM64 test for ARMv8.1
atomics by potentially calling an illegal instruction, and then trapping
the exception to disable use of them by way of a structured exception
handler. However, vectored exception handlers are always called before
structured exception handlers. When LoadLibrary-ing DLLs that do this
probing during initialization, our lastcontinuehandler winds up being
called, and then crashing, but actually it should give execution back to
the library to handle the exception and fix up the state. So special
case this for arm64 with illegal instructions, and hope that we're not
masking other things in external DLLs that might more fatally trigger an
illegal instruction exception.
Updates #47576.
Change-Id: I341ab99cd8d513ae999b75596749d49779072022
Reviewed-on: https://go-review.googlesource.com/c/go/+/340070
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Even experienced users occasionally mistake that runtime.KeepAlive can
be used as a workaround for following the unsafe.Pointer safety rules,
but it cannot. Add an explicit warning to this effect to dissuade
users from trying to use it as such.
Fixes#47562.
Change-Id: I842e33a3e1c080933c6b1bd1b6318448adbf495c
Reviewed-on: https://go-review.googlesource.com/c/go/+/340269
Trust: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
End-users are not expected to deal with the details of panics,
so providing extra information such as an "internal error" prefix
or the name of the function invoking the panic are not helpful.
Remove unnecessary panic verbiage if it is readily available from
a stack trace (such as the function where it happens, and the fact
that is is an "internal error").
Change-Id: I5f86bae6d2cca7c04ce692d17257da7ddee206d7
Reviewed-on: https://go-review.googlesource.com/c/go/+/339969
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
TestIncompleteInterfaces is not useful anymore because interface
printing always shows the syntactic type structure of an interface.
Also remove the respective support code in interface printing and
simplify that code.
Move the newDefined and nopos support declarations unchanged into
api_test.go where they are used.
Updates #46167.
Change-Id: I23e303bc4ae4271912ba75f201bd2b7cd4a17b3e
Reviewed-on: https://go-review.googlesource.com/c/go/+/339832
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
This flag is not needed by types2 (and possibly can also be removed
from go/types). Removed some unnecessary comments along the way.
Updates #46174.
Change-Id: I1a7a99f724205a084d1c9850bce6f6f5d33f83ca
Reviewed-on: https://go-review.googlesource.com/c/go/+/339831
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
This CL resolves several known issues and TODOs.
- Represent type sets with term lists and using term list abstractions.
- Represent Unions internally as a list of (syntactical) terms.
Use term operations to print terms and detect overlapping union
entries.
- Compute type sets corresponding to unions lazily, on demand.
- Adjust code throughout.
- Adjusted error check in test/typeparam/mincheck.dir/main.go
to make test pass.
Change-Id: Ib36fb7e1d343c2b6aec51d304f0f7d1ad415f999
Reviewed-on: https://go-review.googlesource.com/c/go/+/338310
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
- Removed gcshapeType - we're going with more granular shapes for now, and gradually
coarsening later if needed.
- Put in early return in getDictionarySym(), so the entire rest of the
function can be un-indented by one level.
- Removed some duplicated infoprint calls, and fixed one infoprint
message in getGfInfo.
Change-Id: I13acce8fdabdb21e903275b53ff78a1e6a378de2
Reviewed-on: https://go-review.googlesource.com/c/go/+/339901
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
In this case, we can't use an itab for doing a bound call, since we're
converting from an interface to an interface. We do a static or dynamic
type assert in new function assertToBound().
The dynamic type assert in assertToBound() is only needed if a bound is
parameterized. In that case, we must do a dynamic type assert, and
therefore need a dictionary entry for the type bound (see change in
getGfInfo). I'm not sure if we can somehow limit this case, since using
an interface as a type arg AND having the type bound of the type
arg be parameterized is a very unlikely case.
Had to add the TUNION case to parameterizedBy1() (which is only used for
extra checking).
Added a bunch of these test cases to 13.go, which now passes.
Change-Id: Ic22eed637fa879b5bbb46d36b40aaad6f90b9d01
Reviewed-on: https://go-review.googlesource.com/c/go/+/339898
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Put shape types in the top level package called ".shape".
Name them using the serialization of the shape name, instead of
the .shapeN names.
This allows the linker to deduplicate instantiations across packages.
Not sure that this is entirely correct, as shapes in this package
may reference other packages (e.g. a field of a struct). But it seems
to work for now.
For the added test, when you look at the resulting binary (use the -k
option with run.go) it has only one instantiation of F, and 4 call sites:
$ objdump -d a.exe | grep _a\.F
1053cb0: e8 8b 00 00 00 callq 139 <_a.F[.shape.*uint8]>
1053ce9: e8 52 00 00 00 callq 82 <_a.F[.shape.*uint8]>
_a.F[.shape.*uint8]:
1053d90: e8 ab ff ff ff callq -85 <_a.F[.shape.*uint8]>
1053dc9: e8 72 ff ff ff callq -142 <_a.F[.shape.*uint8]>
Change-Id: I627f7e50210aabe4a10d0e2717d87b75ac82e99b
Reviewed-on: https://go-review.googlesource.com/c/go/+/339595
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
CL 339396 allowed stack copying on entry to and during freedefer, but
this introduced a subtle bug: if d is heap-allocated, and d.link
points to a stack-allocated defer, stack copying during freedefer can
briefly introduce a stale pointer, which the garbage collector can
discover and panic about. This happens because d has already been
unlinked from the defer chain when freedefer is called, so stack
copying won't update stack pointers in it.
Fix this by making freedefer nosplit again and immediately clearing
d.link.
This should fix the longtest builders, which currently fail on
GOMAXPROCS=2 runtime -cpu=1,2,4 -quick in the TestDeferHeapAndStack
test.
This seems like the simplest fix, but it just deals with the subtlety
rather than eliminating it. Really, every call site of freedefer (of
which there are surprisingly many) has hidden subtlety between
unlinking the defer and calling freedefer. We could consolidate the
subtlety into each call site by requiring that they unlink the defer
and set d.link to nil before calling freedefer. freedefer could check
this condition like it checks that various other fields have already
been zeroed. A more radical option is to replace freedefer with
"popDefer", which would both pop the defer off the link and take care
of freeing it. There would still be a brief moment of subtlety, but it
would be in one place, in popDefer. Annoyingly, *almost* every call to
freedefer just pops the defer from the head of the G's list, but
there's one place when handling open-coded defers where we have to
remove a defer from the middle of the list. I'm inclined to first fix
that subtlety by only expanding open-coded defer records when they're
at the head of the defer list, and then revisit the popDefer idea.
Change-Id: I3130d2542c01a421a5d60e8c31f5379263219627
Reviewed-on: https://go-review.googlesource.com/c/go/+/339730
Trust: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
This test made many requests over the same connection for 10
seconds, trusting that this will exercise the request cancelation
race from #41600.
Change the test to exhibit the specific race in a targeted fashion
with only two requests.
Updates #41600.
Updates #47016.
Change-Id: If99c9b9331ff645f6bb67fe9fb79b8aab8784710
Reviewed-on: https://go-review.googlesource.com/c/go/+/339594
Trust: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
This is a port of CL 337354 to go/types, adjusted for the error
reporting API and to reposition a couple error messages in
issue47411.go2 (the go/types position is probably better).
A panic is also fixed in lookup.go when method lookup fails and static
== false. I'll send a fix for types2 in a separate CL.
For #47411
Change-Id: Icc48f03c3958695f581f10e8675c1f32434c424b
Reviewed-on: https://go-review.googlesource.com/c/go/+/339652
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
This is a port of CL 337353 to go/types, adjusted for the error API and
to comment out a test for MethodSet.
Some nearby error messages that were using errorf rather than error were
also adjusted.
Fixes#43621
Change-Id: I28c9747e044ec7a2863f6890db69475fb8c29231
Reviewed-on: https://go-review.googlesource.com/c/go/+/339651
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Currently, freedefer manually zeros all the fields in the _defer
because simply assigning _defer{} used to cause a nosplit stack
overflow. freedefer is no longer nosplit, so go back to the simpler,
more robust code.
Change-Id: I881f557bab3b1ee7ab29b68e7fb56d0fe6d35d8d
Reviewed-on: https://go-review.googlesource.com/c/go/+/339669
Trust: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Currently, deferreturn runs deferred functions by backing up its
return PC to the deferreturn call, and then effectively tail-calling
the deferred function (via jmpdefer). The effect of this is that the
deferred function appears to be called directly from the deferee, and
when it returns, the deferee calls deferreturn again so it can run the
next deferred function if necessary.
This unusual flow control leads to a large number of special cases and
complications all over the tool chain.
This used to be necessary because deferreturn copied the deferred
function's argument frame directly into its caller's frame and then
had to invoke that call as if it had been called from its caller's
frame so it could access it arguments. But now that we've simplified
defer processing so the runtime only deals with argument-less
closures, this approach is no longer necessary.
This CL simplifies all of this by making deferreturn simply call
deferred functions in a loop.
This eliminates the need for jmpdefer, so we can delete a bunch of
per-architecture assembly code.
This eliminates several special cases on Wasm, since it couldn't
support these calling shenanigans directly and thus had to simulate
the loop a different way. Now Wasm can largely work the way the other
platforms do.
This eliminates the per-architecture Ginsnopdefer operation. On PPC64,
this was necessary to reload the TOC pointer after the tail call
(since TOC pointers in general make tail calls impossible). The tail
call is gone, and in the case where we do force a jump to the
deferreturn call when recovering from an open-coded defer, we go
through gogo (via runtime.recovery), which handles the TOC. On other
platforms, we needed a NOP so traceback didn't get confused by seeing
the return to the CALL instruction, rather than the usual return to
the instruction following the CALL instruction. Now we don't inject a
return to the CALL instruction at all, so this NOP is also
unnecessary.
The one potential effect of this is that deferreturn could now appear
in stack traces from deferred functions. However, this could already
happen from open-coded defers, so we've long since marked deferreturn
as a "wrapper" so it gets elided not only from printed stack traces,
but from runtime.Callers*.
This is a retry of CL 337652 because we had to back out its parent.
There are no changes in this version.
Change-Id: I3f54b7fec1d7ccac71cc6cf6835c6a46b7e5fb6c
Reviewed-on: https://go-review.googlesource.com/c/go/+/339397
Trust: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Prior to regabi, the compiler passed defer arguments to the runtime as
untyped values on the stack. This meant a lot of defer-related runtime
functions had to be very careful not to grow the stack or allow
preemption since the stack could not be safely scanned or moved.
However, with regabi, every defer is now simply a func() from the
runtime's perspective, which means we no longer have untyped values on
the stack when we enter defer-related runtime code.
Hence, this CL removes a lot of the now-unnecessary carefulness in the
defer implementation. Specifically, deferreturn no longer needs to be
nosplit because it doesn't copy untyped defer arguments to its
caller's frame (we also update some stale comments in deferreturn).
freedefer no longer needs to be nosplit because it's none of its
callers are deeply nosplit. And newdefer and freedefer no longer need
to switch to the systemstack on their slow paths to avoid stack
growth.
deferprocStack is the only function that still needs to be nosplit,
but that's because the compiler calls it with uninitialized live
pointer slots on the stack (maybe we should change that, but that's a
very different fix).
This is a retry of CL 337651, which was rolled back. This version
disables preemption in newdefer and freedefer while they hold the
current P.
Change-Id: Ibf469addc0b69dc3ba9a3d1a5e0c2804b7b4b244
Reviewed-on: https://go-review.googlesource.com/c/go/+/339396
Trust: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Currently, unified IR takes a simple approach of generating method
wrappers for every anonymous type that it sees. This is correct, but
spends a lot of time in code generation and bloats the object files
with duplicate method wrappers that the linker discards.
This CL changes it to distinguish anonymous types that were found in
imported packages vs the local package. The simple win here is that
now we stop emitting wrappers for imported types; but by keeping track
of them and marking them as "have" instead of "need", we can avoid
emitting wrappers for types that appear in both the local package and
imported packages.
This can be improved further, but this is a simple first step that
prevents large protobuf projects from blowing up build cache limits.
Change-Id: Ia65e8981cb1f067eca2bd072b9bbb77c27b95207
Reviewed-on: https://go-review.googlesource.com/c/go/+/339411
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Previously, softfloat mode does not work with register ABI, mainly
because the compiler doesn't know how to pass floating point
arguments and results. According to the ABI it should be passed in
FP registers, but there isn't any in softfloat mode.
This CL makes it work. When softfloat is used, we define the ABI
as having 0 floating point registers (because there aren't any).
The integer registers are unchanged. So floating point arguments
and results are passed in memory.
Another option is to pass (the bit representation of) floating
point values in integer registers. But this complicates things
because it'd need to reorder integer argument registers.
Change-Id: Ibecbeccb658c10a868fa7f2dcf75138f719cc809
Reviewed-on: https://go-review.googlesource.com/c/go/+/327274
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
- Changed some early returns to asserts (instantiateMethods and Shapify
should never take a shape arg)
- Added suggested change (by Ingo) to use copy() in getInstantiation()
- Clarified that shape types never have methods in Shapify(), removed
some TODO comments.
Change-Id: Ia2164ffe670a777f7797bbb45c7ef5e6e9e15357
Reviewed-on: https://go-review.googlesource.com/c/go/+/338971
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
This just moves the code around the instance type into named.go
where it belongs. While at it, also removed some left-over references
to instance types (which are gone). Removed instance.go.
Change-Id: I302a86ca50675b0be54f6138fa47f48f00f9c98f
Reviewed-on: https://go-review.googlesource.com/c/go/+/338469
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Currently, most softfloat functions take uint32/64 arguments (for
bit representation of float32/64) and operate on uint32/64. But
there are exeptions where the function take float arguments and
operate on float. So they are only actually softfloat if the
helper functions themselves are translated (by the compiler's
softfloat mode). These are mostly fine (besides being a bit
convoluted). But with register ABIs this inconsistency adds
complexity to the compiler to generate such calls, because it
needs to be called with the right ABI.
Rewrite the functions to operate on uint32/64 directly, using
other helper functions. So they all take uint32/64 arguments and
return uint32/64.
Change-Id: Id9383b74bcbafee44160cc5b58ab245bffbbdfd2
Reviewed-on: https://go-review.googlesource.com/c/go/+/327273
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Currently, deferreturn runs deferred functions by backing up its
return PC to the deferreturn call, and then effectively tail-calling
the deferred function (via jmpdefer). The effect of this is that the
deferred function appears to be called directly from the deferee, and
when it returns, the deferee calls deferreturn again so it can run the
next deferred function if necessary.
This unusual flow control leads to a large number of special cases and
complications all over the tool chain.
This used to be necessary because deferreturn copied the deferred
function's argument frame directly into its caller's frame and then
had to invoke that call as if it had been called from its caller's
frame so it could access it arguments. But now that we've simplified
defer processing so the runtime only deals with argument-less
closures, this approach is no longer necessary.
This CL simplifies all of this by making deferreturn simply call
deferred functions in a loop.
This eliminates the need for jmpdefer, so we can delete a bunch of
per-architecture assembly code.
This eliminates several special cases on Wasm, since it couldn't
support these calling shenanigans directly and thus had to simulate
the loop a different way. Now Wasm can largely work the way the other
platforms do.
This eliminates the per-architecture Ginsnopdefer operation. On PPC64,
this was necessary to reload the TOC pointer after the tail call
(since TOC pointers in general make tail calls impossible). The tail
call is gone, and in the case where we do force a jump to the
deferreturn call when recovering from an open-coded defer, we go
through gogo (via runtime.recovery), which handles the TOC. On other
platforms, we needed a NOP so traceback didn't get confused by seeing
the return to the CALL instruction, rather than the usual return to
the instruction following the CALL instruction. Now we don't inject a
return to the CALL instruction at all, so this NOP is also
unnecessary.
The one potential effect of this is that deferreturn could now appear
in stack traces from deferred functions. However, this could already
happen from open-coded defers, so we've long since marked deferreturn
as a "wrapper" so it gets elided not only from printed stack traces,
but from runtime.Callers*.
Change-Id: Ie9f700cd3fb774f498c9edce363772a868407bf7
Reviewed-on: https://go-review.googlesource.com/c/go/+/337652
Trust: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Prior to regabi, the compiler passed defer arguments to the runtime as
untyped values on the stack. This meant a lot of defer-related runtime
functions had to be very careful not to grow the stack or allow
preemption since the stack could not be safely scanned or moved.
However, with regabi, every defer is now simply a func() from the
runtime's perspective, which means we no longer have untyped values on
the stack when we enter defer-related runtime code.
Hence, this CL removes a lot of the now-unnecessary carefulness in the
defer implementation. Specifically, deferreturn no longer needs to be
nosplit because it doesn't copy untyped defer arguments to its
caller's frame (we also update some stale comments in deferreturn).
freedefer no longer needs to be nosplit because it's none of its
callers are deeply nosplit. And newdefer and freedefer no longer need
to switch to the systemstack on their slow paths to avoid stack
growth.
deferprocStack is the only function that still needs to be nosplit,
but that's because the compiler calls it with uninitialized live
pointer slots on the stack (maybe we should change that, but that's a
very different fix).
Change-Id: I1156ec90bff2613fe4b48b84b375943349ce637d
Reviewed-on: https://go-review.googlesource.com/c/go/+/337651
Trust: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Prior to regabi, a deferred function could have any signature, so the
runtime always manipulated them as funcvals. Now, a deferred function
is always func(). Hence, this CL makes the runtime's manipulation of
deferred functions more type-safe by using func() directly instead of
*funcval.
Change-Id: Ib55f38ed49107f74149725c65044e4690761971d
Reviewed-on: https://go-review.googlesource.com/c/go/+/337650
Trust: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reading from an incoming request body after the request handler aborts
with a panic can cause a panic, becuse http.Server does not (contrary
to its documentation) close the request body in this case.
Always close the incoming request body in ReverseProxy.ServeHTTP to
ensure that any in-flight outgoing requests using the body do not
read from it.
Updates #46866
Fixes CVE-2021-36221
Change-Id: I310df269200ad8732c5d9f1a2b00de68725831df
Reviewed-on: https://go-review.googlesource.com/c/go/+/333191
Trust: Damien Neil <dneil@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
When CL 336252 was created (itself a port of CL 335929), types2
tests revealed that lazy expansion of instances was not behaving
correctly with respect to lazy loading of Named types.
This CL ports the fixes from CL 336252 back to go/types.
Change-Id: Iffc6c84a708449633153b800dfb98ff57402893c
Reviewed-on: https://go-review.googlesource.com/c/go/+/338369
Trust: Robert Findley <rfindley@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Presumably the "It is safe to call on a nil receiver" comment was
mistakenly copied from TypeParams.Len, which is actually safe to call
on a nil receiver.
Change-Id: Iec5ae32c98dc91ce84a6207b47f2b1e530bdbfe2
Reviewed-on: https://go-review.googlesource.com/c/go/+/338430
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
The other uses of Unshapify were really only there to allow for the
dictionary checking code at the beginning of generic functions/methods.
But that will go away as soon as we start combining real shapes. If we
get rid of that code, we can get rid of the unshapify calls elsewhere.
The only tricky part is that getInstantiation now gets targs that may each
either be a shape or concrete type, and it must translate any concrete
types to shapes, while leaving the already existing shapes.
Change-Id: Ib2b9072b921f8e064958548a1078d82f1d040c9f
Reviewed-on: https://go-review.googlesource.com/c/go/+/338289
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Rewrite a method expression such as 'T.String' (where T is type param
and String is part of its type bound Stringer) as:
func(rcvr T, other params...) {
return Stringer(rcvr).String(other params...)
}
New function buildClosure2 to create the needed closure. The conversion
Stringer(rcvr) uses the dictionary in the outer function.
For a method expression like 'Test[T].finish' (where finish is a method
of Test[T]), we can already deal with this in buildClosure(). We just
need fix transformDot() to allow the method lookup to fail, since shapes
have no methods on them. That's fine, since for any instantiated
receiver type, we always use the methods on the generic base type.
Also removed the OMETHEXPR case in the main switch of node(), which
isn't needed any (and removes one more potential unshapify).
Also, fixed two small bugs with handling closures that have generic
params or generic captured variables. Need to set the instInfo for the
closure in the subst struct when descending into a closure during
genericSubst() and was missing initializing the startItabConv and gfInfo
fields in the closure info.
Change-Id: I6dadedd1378477936a27c9c544c014cd2083cfb7
Reviewed-on: https://go-review.googlesource.com/c/go/+/338129
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
This matches the accessor named Constraint, and any documentation we have so far.
Use iface instead of Bound internally to types2; keep Bound because of two external
uses but mark it as deprecated. Adjust clients.
Change-Id: Id1a2c2f28259a16082e875eee0534d46cf157336
Reviewed-on: https://go-review.googlesource.com/c/go/+/338196
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
This is a port of CL 336249 with adjustments due to slightly
different handling of type parameter declaration in types2.
The CL also contains adjustments to the compiler front-end.
With this change it is not necessary to export type parameter
indices. Filed issue #47451 so we don't forget.
Change-Id: I2834f7be313fcb4763dff2a9058f1983ee6a81b3
Reviewed-on: https://go-review.googlesource.com/c/go/+/338192
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Type terms will be used to represent a type set as a list
of type terms. Eventually, a type term may also include
a method set.
Groundwork for the implementation of lazily computed
type sets for union expressions.
Change-Id: Ic88750af21f697ce0b52a2259eff40bee115964c
Reviewed-on: https://go-review.googlesource.com/c/go/+/338049
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
When returning from Go to C, it was possible for the goroutine to be
preempted after calling unlockOSThread. This could happen when there
a context function installed by SetCgoTraceback set a non-zero context,
leading to a defer call in cgocallbackg1. The defer function wrapper,
introduced in 1.17 as part of the regabi support, was not nosplit,
and hence was a potential preemption point. If it did get preempted,
the G would move to a new M. It would then attempt to return to C
code on a different stack, typically leading to a SIGSEGV.
Fix this in a simple way by postponing the unlockOSThread until after
the other defer. Also check for the failure condition and fail early,
rather than waiting for a SIGSEGV.
Without the fix to cgocall.go, the test case fails about 50% of the
time on my laptop.
Fixes#47441
Change-Id: Ib8ca13215bd36cddc2a49e86698824a29c6a68ba
Reviewed-on: https://go-review.googlesource.com/c/go/+/338197
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
After the previous two CLs, there's no need for unified IR to
write/read blank functions anymore: types2 has already checked that
they're valid, and the compiler backend is going to ignore them.
Allows dropping code for worrying about blank methods and will
probably simplify some of the object handling code eventually too.
Fixes#47446.
Change-Id: I03cb722793d676a246b1ab768b5cf0d3d2578b12
Reviewed-on: https://go-review.googlesource.com/c/go/+/338096
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
After typechecking a blank function, we can clear out its body and
skip applying middle-end optimizations (inlining, escape analysis). We
already skip sending them through SSA, and the previous CL updated
inlining and escape analysis regress tests to not depend on compiling
blank functions.
Updates #47446.
Change-Id: Ie678763b0e6ff13dd606ce14906b1ccf1bbccaae
Reviewed-on: https://go-review.googlesource.com/c/go/+/338095
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
This CL renames blank functions in the test/ directory so that they
don't rely on the compiler doing anything more than typechecking them.
In particular, I ran this search to find files that used blank
functions and methods:
$ git grep -l '^func.*\b_(' | xargs grep -n '^' | grep '\.go:1:' | grep -v '// errorcheck$'
I then skipped updating a few files:
* blank.go
* fixedbugs/issue11699.go
* fixedbugs/issue29870.go
These tests specifically check that blank functions/methods work.
* interface/fail.go
Not sure the motivation for the blank method here, but it's empty
anyway.
* typeparam/tparam1.go
Type-checking test, but uses "-G" (to use types2 instead of typecheck).
Updates #47446.
Change-Id: I9ec1714f499808768bd0dcd7ae6016fb2b078e5e
Reviewed-on: https://go-review.googlesource.com/c/go/+/338094
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
We don't usually reformat the test directory, but all of the files in
test/typeparam are syntactically valid. I suspect the misformattings
here are because developers aren't re-installing gofmt with
-tags=typeparams, not intentionally exercising non-standard
formatting.
Change-Id: I3767d480434c19225568f3c7d656dc8589197183
Reviewed-on: https://go-review.googlesource.com/c/go/+/338093
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
This is a port of CL 335929 to types2. It differs significantly from
that CL to handle lazy loading, which wasn't tested in go/types.
Additionally, the *Checker field was moved out of instance and back
onto Named. This way we can tell whether a Named type is uninstantiated
simply by checking whether Named.instance is non-nil, which simplified
the code considerably.
Fixes#46151
Change-Id: I617263bcfaa768ac5442213cecad8d567c2749fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/336252
Trust: Robert Findley <rfindley@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Ironically, checkptrAlignment had a latent case of bad pointer
arithmetic: if ptr is nil, then `add(ptr, size-1)` might produce an
illegal pointer value.
The fix is to simply check for nil at the top of checkptrAlignment,
and short-circuit if so.
This CL also adds a more explicit bounds check in checkptrStraddles,
rather than relying on `add(ptr, size-1)` to wrap around. I don't
think this is necessary today, but it seems prudent to be careful.
Fixes#47430.
Change-Id: I5c50b2f7f41415dbebbd803e1b8e7766ca95e1fd
Reviewed-on: https://go-review.googlesource.com/c/go/+/338029
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Fix the cons.go missing method error. Mark all the methods of
instantiated interface types as used. We could try to record all the
exact methods used for generic interface types, but for now, just mark
all the methods as used so that their methods are not dead-code
eliminated.
Change-Id: I35685eda82476244371379b97691a1b8506ef0f7
Reviewed-on: https://go-review.googlesource.com/c/go/+/337349
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
When checking for updates, the go command checks whether the highest
compatible version has a go.mod file in order to determine whether
+incompatible versions may be considered "latest". Previously, to
perform this check, the go command would download the content of the
module (the .zip file) to see whether a go.mod file was present at the
root. This is slower than necessary, and it caused 'go list -m -u' to
try to save the sum for the .zip file in go.sum in some cases.
With this change, the go command only downloads the .mod file and
checks whether it appears to be a fake file generated for a version
that didn't have a go.mod file. This is faster and requires less
verification. Fake files only have a "module" directive. It's possible
to commit a file that passes this test, but it would be difficult to
do accidentally: Go 1.12 and later at least add a "go" directive. A
false positive here would cause version queries to have slightly
different results but would not affect builds.
Fixes#47377
Change-Id: Ie5ffd0b45e39bd0921328a60af99a9f6e5ab6346
Reviewed-on: https://go-review.googlesource.com/c/go/+/337850
Trust: Jay Conrod <jayconrod@google.com>
Run-TryBot: Jay Conrod <jayconrod@google.com>
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Reviewed-by: Michael Matloob <matloob@golang.org>
This removes the special "==" methods from comparable interfaces in
favor of a "comparable" flag in TypeSets indicating that the interface
is or embeds comparable. Fixes various related implementation
inaccuracies.
While at it, fix setup of the predeclared error and comparable
interface types by associating their respective type name objects
with them.
For #47411.
Change-Id: I409f880c8c8f2fe345621401267e4aaabd17124d
Reviewed-on: https://go-review.googlesource.com/c/go/+/337354
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Currently, deferproc stores the caller SP as a uintptr in a local
variable across a call to newdefer, but newdefer could grow the stack
and invalidate this saved SP, causing deferproc to store a stale SP in
the defer record. This would lead to us later failing to match that
defer to its calling frame, and we wouldn't run the defer at the right
time (or possibly at all).
It turns out this isn't crashing horribly right now only because the
compiler happens to only materialize the result of getcallersp when
this variable is used, *after* the call to newdefer. But this is
clearly on thin ice, so this CL moves the getcallersp() to the place
where we actually need the result.
Change-Id: Iae8ab226e03e4482f16acfb965885f0bd83a13b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/337649
Trust: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
According to the discussion, it is clear that T.Name returns a
distinct name among all tests. However, there is no specification
of how sub-tests with the same specified test name are constructed.
This change only clarifies the uniqueness and the components of the
name without suggesting any explicit format of the returned name.
Fixes#46488
Change-Id: I6cebd419b69fb08d8646cb744a129548452042ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/337392
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
CL 291316 fixed go/types to verify that untyped shift counts are
representable by uint, but as a side effect also converted their types
to uint.
Rearrange the logic to keep the check for representability, but not
actually convert untyped integer constants. Untyped non-integer
constants are still converted, to preserve the behavior of 1.16. This
behavior for non-integer types is a bug, filed as #47410.
Updates #47410Fixes#47243
Change-Id: I5eab4aab35b97f932fccdee2d4a18623ee2ccad5
Reviewed-on: https://go-review.googlesource.com/c/go/+/337529
Trust: Robert Findley <rfindley@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
In CL 336432 we changed adjusttimers so that it no longer cleared
timerModifiedEarliest if there were no timersModifiedEarlier timers.
This caused some Google internal tests to time out, presumably due
to the increased contention on timersLock. We can avoid that by
simply not skipping the loop in adjusttimers, which lets us safely
clear timerModifiedEarliest. And if we don't skip the loop, then there
isn't much reason to keep the count of timerModifiedEarlier timers at all.
So remove it.
The effect will be that for programs that create some timerModifiedEarlier
timers and then remove them all, the program will do an occasional
additional loop over all the timers. And, programs that have some
timerModifiedEarlier timers will always loop over all the timers,
without the quicker exit when they have all been seen. But the loops
should not occur all that often, due to timerModifiedEarliest.
For #47329
Change-Id: I7b244c1244d97b169a3c7fbc8f8a8b115731ddee
Reviewed-on: https://go-review.googlesource.com/c/go/+/337309
Trust: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Michael Pratt <mpratt@google.com>
Conflicts:
- src/cmd/compile/internal/ssagen/ssa.go
CL 336629 touched code that had already been removed on dev.typeparams.
Merge List:
+ 2021-07-26 ecaa6816bf doc: clarify non-nil zero length slice to array pointer conversion
+ 2021-07-26 1868f8296e crypto/x509: update iOS bundled roots to version 55188.120.1.0.1
+ 2021-07-25 849b791129 spec: use consistent capitalization for rune literal hex constants
+ 2021-07-23 0914646ab9 doc/1.17: fix two dead rfc links
+ 2021-07-22 052da5717e cmd/compile: do not change field offset in ABI analysis
Change-Id: Ie570ec3f6a3241e0495e39e8a73b3a09a9368605
This CL changes fixedbugs/issue30862.go into a "runindir" test so that
it can use '-goexperiment fieldtrack' and test that //go:nointerface
works with cmd/compile. In particular, this revealed that -G=3 and
unified IR did not handle it correctly.
This CL also fixes unified IR's support for //go:nointerface and adds
a test that checks that //go:nointerface, promoted methods, and
generics all interact as expected.
Updates #47045.
Change-Id: Ib8acff8ae18bf124520d00c98e8915699cba2abd
Reviewed-on: https://go-review.googlesource.com/c/go/+/332611
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Trust: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
HasShape needs a TINTER case.
Add a test for x.(T) in various situations. Needs the fix above.
Also remove ONEW unshapify case. It is ok for ONEW to have a shape
type, as it will just be passed to mallocgc, or possibly used as a
stack object type, both of which are ok.
Change-Id: Ibddf8f5c8c254d32cb5ebcaca7dc94b4c00ab893
Reviewed-on: https://go-review.googlesource.com/c/go/+/337231
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
We just need to substitute from the typeparams to the shapes for the dst
type of the bound.
Removed concretify substituter, not used anymore. Also removed
shape2params, not needed anymore.
However, since the dst type is now not concrete, this gives more cases
where the linker can't find a method.
I realized that we need to call MarkUsedIfaceMethod to mark a method as
used on a particular interface, else a type's method can be still
deadcoded even though MarkTypeUsedInInterface has been called on the
concrete type. I added a new version MarkUsedIfaceMethodIndex to fit my
use case.
Change-Id: Id67b72b350889dd3688b42739c337d5d79a0d1a2
Reviewed-on: https://go-review.googlesource.com/c/go/+/337230
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
This operation computes just the data field needed to put its argument
into an interface. Used by generics because we produce the type field
of an interface using dictionaries (instead of statically).
With this operation defined, we can now assert that shape types
are never marked as used in interfaces (the only previous use
was IDATA(CONVIFACE(t))).
Change-Id: Idb1eb5f3b238285cb99413d382599c0621b7681a
Reviewed-on: https://go-review.googlesource.com/c/go/+/337109
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
As of CL 334894, type sets are lazily evaluated on interfaces. For the
universe interfaces error and comparable, this can lead to data races
when type checking concurrently. Fix this by computing their type set
when they are defined.
Tested using the repro from #47345. I considered checking this in as a
test, but it probably wouldn't add much value going forward.
Fixes#47345
Change-Id: I014a511b8e3c092c86201a8bfc7f5f494f8f20e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/336910
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Add a test to make sure there's no invalid OCONVIFACEs when stenciling is done.
Use concrete types for the type of DOTTYPE and DOTTYPE2.
MarkTypeUsedInInterface - should we allow types with shape types
underneath? I think the itab CL will help with this (at least, for
a remaining cons.go issue).
Change-Id: I2c96d74e8daaca26cadc84ea94abb9a27c0bb240
Reviewed-on: https://go-review.googlesource.com/c/go/+/337069
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Dan Scales <danscales@google.com>
This fix the case where a type param or derived type is converted to a
non-empty interface. Previously, we were converting to an empty
interface and then using DOTTYPE to convert to the correct non-empty
interface. In that case, we can get the needed itab directly from the
dictionary. This is needed for correctness from shapes, if the
destination interface is parameterized, else we will incorrectly convert
to the shape version of the interface.
Creating/writing an itab can involve generating wrappers for a bunch of
methods, which may use dictionaries. So, all the
dictionaries/instantiations are being generated on the fly and have
recursive relationships, it is simplest to finish creating/writing the
itabs at the end of the stenciling phase. So, we create a list of the
dictionaries which need to be completed by writing out their itab
entries.
The existing tests ordered.go, ifaceconv.go, and issue44688.go make use
of this optimization.
Got itab conversions for bound calls working, except for 13.go.
Also, want to get rid of the concretify, but I think we need more info
on the Bound from types2.
Change-Id: If552958a7b8a435500d6cc42c401572c367b30d1
Reviewed-on: https://go-review.googlesource.com/c/go/+/336993
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
Changes to add CONVIFACE nodes where possible in noder2, even when the
args are typeparams. The transformation to insert a CONVIFACE node can
usually happen when there an obvious assignment/conversion to an
interface type from a non-interface type. So, we now do this
tranformation for:
- direct conversions to an interface type
- function arguments that are implicitly converted to an interface
based on the parameter types.
- EQ/NE comparison of an interface and a non-interface
With this change, we can remove some special case checks for CONVIFACE
nodes after transformation in node(), and instead just have the one
check in the CONVIFACE check.
Change-Id: I7cf2ef920aebf9e5553210aeaf19f344e128ca62
Reviewed-on: https://go-review.googlesource.com/c/go/+/336992
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Currently, the ABI analysis assigns parameter/result offsets
to the fields of function *Type. In some cases, we may have
an ABI0 function reference and an ABIInternal reference share
the same function *Type. For example, for an ABI0 function F,
"f := F" will make f and (ABI0) F having the same *Type. But f,
as a func value, should use ABIInternal. Analyses on F and f will
collide and cause ICE.
Also, changing field offsets in ABI analysis has to be done very
carefully to avoid data races. It has been causing
trickiness/difficulty.
This CL removes the change of field offsets in ABI analysis
altogether. The analysis result is stored in ABIParamAssignment,
which is the only way to access parameter/result stack offset now.
Fixes#47317.
Fixes#47227.
Change-Id: I23a3e081a6cf327ac66855da222daaa636ed1ead
Reviewed-on: https://go-review.googlesource.com/c/go/+/336629
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Make sure the instantiating types are the type parameters of the containing
function (or types derived from those).
The one exception is the argument of a OFUNCINST, whose type
parameters are those of the declaration site of the function or method
being instantiated. We skip those types.
Change-Id: I4b3ff22eb8a81a76476930cf8ed2a7dd6489d8b8
Reviewed-on: https://go-review.googlesource.com/c/go/+/336352
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Dan Scales <danscales@google.com>
Changed the implementation such that the result is a variable rather than
a constant if the argument type (or the struct in case of unsafe.Offsetof)
has a size that depends on type parameters.
Minor unrelated adjustments.
For #40301.
Change-Id: I1e988f1479b95648ad95a455c764ead829d75749
Reviewed-on: https://go-review.googlesource.com/c/go/+/335413
Trust: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
Even internally to the type checker, we should use the TParams and
RParams methods instead of accessing fields directly, as TParams may be
lazily expanded, and in the future we may want to pack receiver and
function type parameters into a single field on Signature.
We should also not differentiate a nil *TParamList from an empty
*TParamList.
Change-Id: I85c616e6c708a89b6a5eb1e69fe0b014276eda90
Reviewed-on: https://go-review.googlesource.com/c/go/+/336251
Trust: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
It is invalid to use a type parameter for more than one type, so we can
avoid passing the type parameter index to NewTypeParam and just set it
when type parameters are bound to a type via SetTParams or during type
checking.
In order to enforce the correctness of this change, introduce a
TypeParams type to represent a list of type parameters that have been
associated with a type. For now, expose this new type as the API for
type parameters, but this is of course not necessarily a final API.
Allowing *TypeParams to be nil also decreases the size of Named and
Signature, which is good as most instances of these types will not be
parameterized.
Change-Id: Ia1e39ba51edb05bb535eb5f41c34e9dd02d39c38
Reviewed-on: https://go-review.googlesource.com/c/go/+/336249
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This CL makes two related changes:
1. It uses 'go env -json' to query the environment configuration,
rather than attempting to manually reconstruct the values that cmd/go
is going to use.
2. It changes the -goexperiment flag to *extend* any ambient
GOEXPERIMENT configuration. Notably, this means that '-goexperiment
fieldtrack' now tests fieldtracking in conjunction with any other
experiments (e.g., unified IR). Tests that want to test an exact
GOEXPERIMENT config should use '-goexperiment none,foo' instead.
Change-Id: I96a97198209e540e934fe7035110c3ae3a8f0e6a
Reviewed-on: https://go-review.googlesource.com/c/go/+/332610
Trust: Matthew Dempsky <mdempsky@google.com>
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It was not safe to do mcache profiling updates outside the critical
section, but we got lucky because the runtime was not preemptible.
Adding chunked memory clearing (CL 270943) created preemption
opportunities, which led to corruption of runtime data structures.
Fixes#47304.
Fixes#47302.
Change-Id: I461615470d62328a83ccbac537fbdc6dcde81c85
Reviewed-on: https://go-review.googlesource.com/c/go/+/336449
Trust: David Chase <drchase@google.com>
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Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
The refactoring of CL 335929 to merge the instance and Named types
resulted in type instances only being evaluated once. As a side effect,
we only verified constraints once per unique instantiation expression.
This can be confusing if type instantations are occurring far apart in
the code. Resolve this by lifting up the verification logic into
Instantiate and InstantiateLazy.
Change-Id: Icd5a482d097d983073955c62931441edfd92f5c2
Reviewed-on: https://go-review.googlesource.com/c/go/+/335978
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Reviewed-by: Robert Griesemer <gri@golang.org>
Storing temporary syntactic information using an *instance type forces
us to be careful not to leak references to *instance in the checker
output. This is complex and error prone, as types are written in many
places during type checking.
Instead, temporarily pin the necessary syntactic information directly to
the Named type during the type checking pass. This allows us to avoid
having to sanitize references.
This includes a couple of small, unrelated changes that were made in the
process of debugging:
- eliminate the expandf indirection: it is no longer necessary
- include type parameters when printing objects
For #46151
Change-Id: I767e35b289f2fea512a168997af0f861cd242175
Reviewed-on: https://go-review.googlesource.com/c/go/+/335929
Trust: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
Removed a case in transformCall() where we were setting a type on n,
which isn't needed, since noder2 already set the type of n. More
importantly, we are losing information, since the type of the results
may be a shape type, but the actual type of call is the known type
from types2, which may be a concrete type (in this case Zero[MyInt]).
That concrete type will then be used correctly if the concrete result is
converted to an interface.
If we are inlining the call to Zero[MyInt], we need to add an implicit
CONVNOP operation, since we are going to use the result variable
directly, which has a shape type. So, add an implicit CONVNOP to
remember that the known type is the concrete type.
Also cleaned up 14.go a bit, so it is more understandable. Renamed type
T to AnyInt, since T is used elsewhere as a type parameter. Reformatted
Zero function and added a comment.
Change-Id: Id917a2e054e0bbae9bd302232853fa8741d49b64
Reviewed-on: https://go-review.googlesource.com/c/go/+/336430
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
METHVALUE in a generic function (that is not called) was not causing
buildClosure() to be called and therefore not using dictionaries. Also,
had to add an extra check to make sure that if we have a FUNCINST
node above a METHVALUE, we only call buildClosure once.
Change-Id: I49756152fc343e5ac1c449e697960fc2a0f482ae
Reviewed-on: https://go-review.googlesource.com/c/go/+/336429
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
types2 doesn't actually give us the type of an instantiated
function/method after the type args have been applied. So, do a
substitution at the point that we create the OFUNCINST nodes.
We also needed to add in translation of the typeparams of a function
signature in the type substituter. If the type params of the function
become all concrete after the substitution, then we just drop them,
since the whole signature must now be concrete.
Change-Id: I6116d2aa248be6924ec9e6d8516678db45aa65c4
Reviewed-on: https://go-review.googlesource.com/c/go/+/336370
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
The builtins.go test is derived from
cmd/compile/internal/types2/testdata/check/builtins.go2, after removing
the error cases. Added a few extra tests for len/cap/append.
Fixed one bug, which is that DELETE operations can't be transformed if
their argument is a typeparam. Also, the tranform of LEN/CAP calls does
not need to be delayed. Removed out-date references to the old
typechecker in the comments.
Change-Id: If7a21506a7ff63ff7c8e87ccd614ef4ff3a0d3c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/336010
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Remaining stuff from Dan's CL 335412 to get tests passing.
- Removed PTRLIT case in node() that was added with the gcshape change.
I don't think it is needed anymore.
- Modified (*itab).init() to add an irrelevant pointer (the itab
itself) for the '==' entry of interfaces with 'comparable'. That
entry is not used, so we just want to avoid the error that the given
type doesn't actually have an '==' method.
Change-Id: I9b2d4c8342c0b2048d76e003d95023f4ccd559f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/336149
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
Trust: Dan Scales <danscales@google.com>
Trust: Keith Randall <khr@golang.org>
FUNCINST nodes aren't instantiated correctly. Skip those types when
adding to the set of types considered for the dictionary. Those types
include those which are uninstantiated(have tparams), and those with
type parameters that aren't a parameter of the containing function
(they are the type parameter of the function being called).
Allow func types to be put in the dictionary.
Change-Id: I26bab85d3eebc2f54d02b4bba5e31407faf7c5b2
Reviewed-on: https://go-review.googlesource.com/c/go/+/336129
Reviewed-by: Dan Scales <danscales@google.com>
Trust: Dan Scales <danscales@google.com>
Trust: Keith Randall <khr@golang.org>
Calling MarkTypeUsedInInterface before inlining is problematic (when
using the containing function as the reference source), because we end
up attaching a relocation to the original function, which is then
deadcode removed because all instances of it were inlined. (All other
current uses of MarkTypeUsedInInterface happen after inlining, so they
don't have this problem.)
Instead, attach the relocation to the dictionary in which the type
appears. This should always work, because if the dictionary is ever
deadcode eliminated, then the type can never be put in an interface,
which means we indeed don't need its methods.
This CL is a bit overkill, as not *all* types in the dictionary need
this mark, but it is sufficient for now.
Change-Id: I2d39456691f1c3df8efe3bddc3b9017e0ef37a7f
Reviewed-on: https://go-review.googlesource.com/c/go/+/336012
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Dan Scales <danscales@google.com>
This CL makes two changes:
1. It moves object symbols and code tags into a new "relocName"
relocation, which should eventually allow getting rid of objStub.
2. It moves the type parameter data into the relocObjDict relocation,
so everything related to writing out dictionaries is contained there.
Change-Id: If0f7ff7d9384e8664957c3180bf6f20e97bcff6e
Reviewed-on: https://go-review.googlesource.com/c/go/+/336051
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
CL 330330 moved logic for wrapping go/defer from order to esacpe
analysis. It introduced a bug involves go/defer statement with ABI0
functions.
Consider this following code:
package p
//go:cgo_unsafe_args
func g(*int) (r1 struct{}) {
return
}
func f() {
defer g(new(int))
}
g is a cgo-like generated function with ABI0. While compiling g, we set
the offset per ABI0.
The function f is rewritten into:
func f() {
_0, _1 := g, new(int)
defer func() { _0(_1) }()
}
The temporary _0 hold function value with the same type as g, but with
class PAUTO. Thus ssagen/ssa.go:state.call cannot handle it and use
ABIDefault to set the offset, causes the offset of r1 changed
CL 330332 intended to optimize code generated for wrapping function, by
rewriting the wrapper function into:
func f() {
_0 := new(int)
defer func() { g(_0) }()
}
So it fixed the bug unintentionally.
This CL add regression test for this bug, and also add a comment to
explain while not wrapping declared function is important.
Updates #47227
Change-Id: I75c83d1d9cc7fd4699e6b218a295d0c0a10ef471
Reviewed-on: https://go-review.googlesource.com/c/go/+/334882
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
We have almost 200 uses of the "assert" helper functions in noder and
typecheck. Clearly the tiny bit of extra convenience of writing a
one-line assertion rather than an if+panic is helpful, so we might as
well add functions for this to base itself so that it's easier to
write more informative error messages.
Change-Id: I06e2db2f0455af063937b25a53ca42f9413cf496
Reviewed-on: https://go-review.googlesource.com/c/go/+/336050
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
For traceback argument printing, we want to print at most 10
words, then print "..." if there are still more args and/or
fields. The current code has off-by-one error that for 11
non-aggregate typed args, it prints the first 10 but without the
"...". Also, for aggregate-typed args, in some cases it may print
an extra "..." when there is actually no more fields.
The problem for this is that visitType return false (meaning not
to continue visiting) if it reaches the limit anywhere during the
recursive visit. It doesn't distinguish whether it has printed
anything for the current arg. If it reaches the limit before it
prints anything, it means that we're visiting the extra arg/field,
so the caller should print "..." and stop. If it prints
something then reaches the limit, however, the caller should keep
going, and only print "..." at the next iteration when there is
actually an extra arg/field. This CL does so.
Fixes#47159.
Change-Id: I93fc25b73ada2b5a98df780c45e5b0c9565dc2fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/334710
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
This is a port of CL 333770 to go/types, adjusted for the error
reporting API and to not support compiler error messages. An error
message changed (to 'invalid receiver type' from just 'invalid
receiver'), so a test had to be adjusted.
Change-Id: I166e8831d8c9f98ebfb0270fe5221586fc112825
Reviewed-on: https://go-review.googlesource.com/c/go/+/335079
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
This is a partial port of CL 319930, containing only changes to
go/types. Importer changes will be made in a separate CL.
The TypeParams APIs are left unexported for now; they will be exported
when they are needed.
Change-Id: I74bd246d4c174cb38f8360d921c733fa03900eab
Reviewed-on: https://go-review.googlesource.com/c/go/+/335143
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
In CL 326211 a change was made to switch "go.map.zero" symbols from
non-pkg DUPOK symbols to hashed symbols. The intent of this change was
ensure that in cases where there are multiple competing go.map.zero
symbols feeding into a link, the largest map.zero symbol is selected.
The change was buggy, however, and resulted in duplicate symbols in
the final binary (see bug cited below for details). This duplication
was relatively benign for linux/ELF, but causes duplicate definition
errors on Windows.
This patch switches "go.map.zero" symbols back from hashed symbols to
non-pkg DUPOK symbols, and updates the relevant code in the loader to
ensure that we do the right thing when there are multiple competing
DUPOK symbols with different sizes.
Fixes#47185.
Change-Id: I8aeb910c65827f5380144d07646006ba553c9251
Reviewed-on: https://go-review.googlesource.com/c/go/+/334930
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Distinguish the gcshape of all top-level instantiated type from normal
concrete types, even if they have the exact same underlying "shape",
because in a function instantiation, any method call on this type arg
will be a generic method call (requiring a dictionary), rather than a
direct method call on the underlying type (no dictionary).
So, we add the instshape prefix to the gcshape name for instantiated
types, and we make it a defined type with that name.
Change-Id: I33056269d24f3451a2632a5ce6a481108f533c9c
Reviewed-on: https://go-review.googlesource.com/c/go/+/335169
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Type parameters are now always enabled. Users should guard against type
checking generic code by using the types.Config.GoVersion field.
This cleans up some differences with types2.
Change-Id: Ie3e35a549e456a90a10d6a7e158ff58653cc1394
Reviewed-on: https://go-review.googlesource.com/c/go/+/335033
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
These wrappers and aliases were necessary when we had different versions
of the API depending on the typeparams build constraint, but now they're
just boilerplate. Remove them.
Notably the documentation for types.Info is restored.
Change-Id: I5363d1d5df47649c2641c03328dfba45b1456278
Reviewed-on: https://go-review.googlesource.com/c/go/+/334895
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
This is a port of CL 329309 to go/types, with minor updates for API
differences and to handle methodset.go, which doesn't exist in types2.
A couple pre-existing comments were adjusted to match types2.
Change-Id: I3fd556e1326013a694ff5edb8518ca24c27bd10b
Reviewed-on: https://go-review.googlesource.com/c/go/+/334894
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
- set correct position for closure capture variable in (*irgen).use()
(issue20250.go) Also, evaluate rhs, lhs in that order in assignment
statements to match noder1 (affects ordering of closure variables).
- make sure to set Assign flag properly in (*irgen).forStmt() for range
variables which are map accesses (issue9691.go)
- make sure CheckSize() is call on the base type for top-level types
converted by (*irgen).typ() that are pointer types (issue20174.go and
issue37837.go)
- deal with parentheses properly in validation function
(*irgen).validate() (issue17270.go)
- avoid HasNil call on type TTYPEPARAM - types2 typechecker will have
already checked validity of the typeparam having nil value (new test
issue39755.go)
Change-Id: Ie68004d964698aea047e19e7dcd79b297e9d47ca
Reviewed-on: https://go-review.googlesource.com/c/go/+/334733
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Rather than removing "any" from the universe scope, keep it predeclared
but provide a better error message.
While at it, remove some unnecessary type assertions.
Change-Id: I10603274282ea6afc107f703ab194f32bd334dd1
Reviewed-on: https://go-review.googlesource.com/c/go/+/334911
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
When instantiating a generic type or function with multiple type
arguments, we need to represent an index expression with multiple
indexes in the AST. Previous to this CL this was done with a new
ast.ListExpr node, which allowed packing multiple expressions into a
single ast.Expr. This compositional pattern can be both inefficient and
cumbersome to work with, and introduces a new node type that only exists
to augment the meaning of an existing node type.
By comparison, other specializations of syntax are given distinct nodes
in go/ast, for example variations of switch or for statements, so the
use of ListExpr was also (arguably) inconsistent.
This CL removes ListExpr, and instead adds a MultiIndexExpr node, which
is exactly like IndexExpr but allows for multiple index arguments. This
requires special handling for this new node type, but a new wrapper in
the typeparams helper package largely mitigates this special handling.
Change-Id: I65eb29c025c599bae37501716284dc7eb953b2ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/327149
Trust: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
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Beginner and intermediate Go users periodically use TestMain when
requirements do not necessitate TestMain (exceeding least-mechanism
design). This commit expands package testing's documentation to convey
that the TestMain feature itself is somewhat low-level and potentially
unsuitable for casual testing where ordinary test functions would
suffice.
Fixes#42161
Updates #44200
Change-Id: I91ba0b048c3d6f79110fe8f0fbb58d896edca366
Reviewed-on: https://go-review.googlesource.com/c/go/+/334649
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
The compiler is relying on Sym.Def field to lookup symbol package in
DotImportRefs map. But the Sym.Def field is clear whenever the compiler
finish processing a file. If the dot import happen in file A, then the
redeclaration happen in file B, then the symbol lookup in file B will
see a nil Sym.Def, that cause the compiler crashes.
To fix this, we can interate over DotImportRefs and check for matching
symbol name and return the corresponding package. Though this operation
can be slow, but it only happens in invalid program, when printing error
message, so it's not worth to optimize it further.
Fixes#47201
Change-Id: I4ca1cb0a8e7432b19cf71434592a4cbb58d54adf
Reviewed-on: https://go-review.googlesource.com/c/go/+/334589
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Generic receiver types may be defined such that an instantiated
receiver ends up being a pointer type. Disallow them as we do
for non-generic receivers.
Change-Id: I6612a52615a2999375c35aa1d69ab42f37d9f55d
Reviewed-on: https://go-review.googlesource.com/c/go/+/333770
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
Per discussion at #46229 we are taking the "loong64" GOARCH value for
the upcoming LoongArch 64-bit port. It is not clear whether any 32-bit
non-bare-metal userland will exist for LoongArch, so only reserve
"loong64" for now.
Change-Id: I97d262b4ab68ff61c22ccf83e26baf70eefd568d
GitHub-Last-Rev: ecdd8c53bd
GitHub-Pull-Request: golang/go#47129
Reviewed-on: https://go-review.googlesource.com/c/go/+/333909
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Alexander Rakoczy <alex@golang.org>
Call SetPos() in g.expr() so it is available for any new nodes.
Print out the actual type for a composite literal in exprFmt() if
available, else use Ntype if available. Seems generally useful, since
the type name is always more useful than just 'composite literal'.
Fixes a bunch of cases that are excluded in run.go for -G=3.
Change-Id: I40b9bba88027ea4f36d419e3989e7f14891bea04
Reviewed-on: https://go-review.googlesource.com/c/go/+/334609
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This change concentrates the creation is lazily instantiated types
in one place (InstantiateLazy). This should also make it easier to
replace the implementation of lazily instantiated types (e.g. getting
rid of instance types).
Change-Id: I452c463219b466ce79f227c44fb67b79d428842a
Reviewed-on: https://go-review.googlesource.com/c/go/+/333669
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Allow Checker.Instantiate to work with a nil *Checker receiver
(for now). This opens the door to passing in a *Checker at all
times.
Also, added a verify flag to Instantiate, InstantiateLazy, and
instance, to be able to control if constraint satisfaction should
be checked or not.
Removed types2.Instantiate.
For #47103.
Change-Id: Ie00ce41b3e50a0fc4341e013922e5f874276d282
Reviewed-on: https://go-review.googlesource.com/c/go/+/333569
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
In the case that a generic function/method f does a method call on a
type param allowed by its bound, an instantiation of f may do a direct
method call of a concrete type or a method call defined on a generic
type, depending on whether the passed type in a concrete type or an
instantiated type with the appropriate method defined. See the test case
boundmethod.go added to this change.
In order to keep the dictionary format the same for all instantiations
of a generic function/method, I decided to have an optional
sub-dictionary entry for "bounds" calls. At the point that we are
creating the actual dictionary, we can then fill in the needed
sub-dictionary, if the type arg is an instantiated type, or a zeroed
dictionary entry, if type arg is not instantiated and the method will be
on a concrete type.
In order to implement this, I now fill in n.Selection for "bounds"
method calls in generic functions as well. Also, I need to calculate
n.Selection correctly during import for the case where it is now set -
method calls on generic types, and bounds calls on typeparams.
With this change, the dictionaries/sub-dictionaries are correct for
absdiff.go. The new test boundmethod.go illustrates the case where the
bound sub-dict entry is not used for a dictionary for stringify[myint],
but is used for a dictionary for stringify[StringInt[myint]].
Change-Id: Ie2bcb971b7019a9f1da68c97eb03da2333327457
Reviewed-on: https://go-review.googlesource.com/c/go/+/333456
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Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
This CL pushes the typecheck.Expr calls further down to the IR
construction points. It turns out we don't really care about
typecheck.AssignExpr, because it's only used to distinguish whether
ir.BlankNode is allowed. We can avoid that issue by just skipping the
call to typecheck.Expr for blank nodes.
Similarly, for typecheck.Callee, only two details matter: (1) don't
report errors for builtin functions (which aren't allowed outside of
callee contexts); and (2) method-value selector expressions need to
have Op ODOTMETH/ODOTINTER rather than OMETHVALUE. The first can be
handled by simply skipping typecheck on Names (as with ir.BlankNode,
we don't need to typecheck these). The second currently requires
adding a 'callee bool' parameter to disambiguate the context.
The other option would be for exprCall to reset the fun's Op from
OMETHVALUE to OXDOT and let typecheck handle it a second time. But I
anticipate needing to add extra logic in the exprSelector case which
would be harder to undo, so this seems somewhat better.
Change-Id: I1a8dfb6af04265ab466fd7f4cb6ee8b479e92282
Reviewed-on: https://go-review.googlesource.com/c/go/+/333769
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Trust: Matthew Dempsky <mdempsky@google.com>
CL 332469 changed the unified IR reader to incrementally typecheck
each statement as they're read/constructed. This CL goes further to
incrementally typecheck each expression.
While here, this CL reorganizes a few things to make this go more
smoothly. In particular, it renames expr to expr0 and adds a new expr
wrapper that applies typecheck.Expr; gets rid of exprTypeSwitchguard
by moving that logic into switchStmt; and splits exprConvert out from
exprCall, which simplifies the logic for typechecking the calleee
expression somewhat.
Change-Id: I6289de9388dc94a947971f4b7213aafeb2faa5dc
Reviewed-on: https://go-review.googlesource.com/c/go/+/333730
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Trust: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
This CL reuses the symabi wrapper information to warn when a function
is defined both in Go (i.e., has a function declaration with a body)
and in assembly (i.e., has a TEXT instruction).
This will eventually produce a linker error anyway, but we can provide
a slightly nicer error message earlier.
Change-Id: Ia107f813343c0b10f4cd1013e7c72e67149ee52e
Reviewed-on: https://go-review.googlesource.com/c/go/+/333454
Trust: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Than McIntosh <thanm@google.com>
There's nothing GOARCH-specific about ABI wrappers, so allow enabling
them on all architectures.
For unified IR, I want to have a testing mode where we add dictionary
parameters even to non-generic functions, as a way to help stress test
that they're handled correctly. This requires callers to know to
supply the appropriate dictionary arguments when calling them. Calls
generated by the Go compiler know to do this, but calls written in
assembly won't.
Reusing the regabi wrappers is a convenient choke-point for inserting
dictionary arguments for assembly calls.
Change-Id: Ic2c06b7626730289c5405829b61653d1daec430b
Reviewed-on: https://go-review.googlesource.com/c/go/+/333453
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
When types2.Instantiate is called externally, no *Checker is provided and
substitution doesn't have access to Checker.typMap; and instantiation of
recursive generic types leads to an infinite recursion in subst.
There was a local subster.cache but it was only set and never used.
Replaced subster.cache with subster.typMap, which is set to the global
Checker.typMap if available, and set to a local map otherwise. This
prevents such infinite recursions. Added a simple test.
More generally, because we don't have a global type map for external
instantiations, instantiating the same type twice, independently but
with the same type arguments, will result in two different types. This
is not correct. We need to provide some form of context for external
instantiations (which means the importers). This is a separate but
related issue which is not yet addressed (filed #47103).
Change-Id: I541556c677db54f7396fd0c88c7467894dfcf2e7
Reviewed-on: https://go-review.googlesource.com/c/go/+/333383
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Rather than using a local types' position information, use the type
name's scope numbers to uniquely identify the type from others with
the same name.
We use scope numbers rather than indices (with number-1 == index)
to preserve the invariant that the zero value for a scope is a ready
to use empty scope.
Using scope numbers turned out to be fairly simple after all and
provides a reasonably stable identification which will make debugging
simpler. A scope number series may be a bit longer than a unique ID for
each type name but local types should be reasonably rare.
Also did a minor cleanup in universe.go to ensure Named.orig is set up
correctly (there's still an open TODO but with a work-around).
Change-Id: I73935fa9bd960809fd5c95fe8b8a535c313cfc8f
Reviewed-on: https://go-review.googlesource.com/c/go/+/333192
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
types2 currently ignores pragmas, so it does not catch a conversion
error when converting a pointer to a type which is NOT marked notinheap
to a pointer to a convertible type, but which is marked notinheap.
So, we specifically check for this error in transformConv() and report
it during noder2.
Change-Id: I6e9c9ee29f53fa5e490c1ac8306e2191db59eeb4
Reviewed-on: https://go-review.googlesource.com/c/go/+/333369
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Trust: Robert Griesemer <gri@golang.org>
Trust: Dan Scales <danscales@google.com>
Conflicts:
- src/runtime/runtime2.go
On master, CL 317191 fixed the mentions of gc/reflect.go in comments
to reflectdata/reflect.go; but on dev.typeparams, CL 325921 fixed
that the same comment to reflect that deferstruct actually ended up
in ssagen/ssa.go.
Merge List:
+ 2021-07-08 296ddf2a93 net: filter bad names from Lookup functions instead of hard failing
+ 2021-07-08 ce76298ee7 Update oudated comment
+ 2021-07-08 2ca44fe221 doc/go1.17: linkify time.UnixMilli and time.UnixMicro
+ 2021-07-07 5c59e11f5e cmd/compile: remove special-casing of blank in types.sconv{,2}
+ 2021-07-07 b003a8b1ae cmd/compile: optimize types.sconv
+ 2021-07-07 11f5df2d67 cmd/compile: extract pkgqual from symfmt
+ 2021-07-07 991fd381d5 cmd/go: don't lock .mod and .sum files for read in overlay
+ 2021-07-07 186a3bb4b0 cmd/go/internal/modfetch/codehost: skip hg tests if no hg binary is present
+ 2021-07-07 00c00558e1 cmd/go/internal/modload: remove unused functions
+ 2021-07-07 f264879f74 cmd/go/internal/modload: fix an apparent typo in the AutoRoot comment
+ 2021-07-07 c96833e5ba doc: remove stale comment about arm64 port
Change-Id: I849046b6d8f7421f60323549f3f763ef418bf9e7
This CL cleans a few minor nits with the ABI utils tests that are now
necessary because of cleanups that happened on master:
1. Initialize types.LocalPkg; this needs to be set for selector names
to be handled correctly.
2. In TestABIUtilsInterfaces, switch to using an exported identifier,
so it doesn't need to be package qualified.
3. While here, change the method result type from "untyped string" to
just "string". Constants are the only declared object that can ever
have an untyped type.
Change-Id: Iabed46594361a516317a1c2d20c3d59bdb519844
Reviewed-on: https://go-review.googlesource.com/c/go/+/333189
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Than McIntosh <thanm@google.com>
1.go, 12.go: similar to calculating type sizes, we delay computing
instantiations during import until we get up to a top-level type, in
order to make sure recursive types are complete. But we should always
delay calculating sizes when we delay instantiating types, since
otherwise we may try to calculate the size of an incomplete type. So,
needed to add Defer/ResumeCheckSize in (*importReader).typ where we also
defer instantiations. (iimport.go)
2.go: when doing type substition, we have to handle named, parameterized
basic types i.e. the type has a type parameter even though the
underlying type is a basic type that doesn't depend on the parameter.
(subr.go)
3.go: for go 1.18, we allow arbitrary types in interfaces. We had
already allowed union types and tilde types, but didn't allow regular
non-interface types in Go 1.17 for compatibility. Just skip an error
in the case of 1.18. (size.go)
5.go: types2 and types1 differ in how they print out interfaces. types1
puts a space between "interface" and "{", types2 does not. So, since
some typenames come from types2 and some from types1, we need to remove
the space when printing out type arguments. (iimport.go/subr.go)
9.go: in subst.node(), we were missing the KeyExpr case where a node has
no type. The assertion is just there, to make sure we understand all the
cases where there is no type to translate. We could just remove the
whole error check. (stencil.go)
13.go: in subst.node(), missed handling the case where a method
expression is immediate called (which of course, is quite unusual, since
then there's no real reason to have used the method expression syntax in
that case). Just needed to add ir.OMETHEXPR in the OCALL switch
statement. (stencil.go)
Change-Id: I202cbe9541dfafe740e3b84b44982d6181738ea0
Reviewed-on: https://go-review.googlesource.com/c/go/+/333165
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
This makes the implementation match the intended spec behavior:
Given an index expression a[x] where a is a type parameter, the
index expression is valid if the constraint for a satisfies the
following criteria:
- Either all types in the constraint type set are maps, or none
of them are.
- If the (type set) types are maps, they must all have the same
key type. (This may be too strict, perhaps it's sufficient to
ensure assignability, but we can always relax that later.)
- All (type set) types must have the same element types.
- If there are any arrays, a constant index must be in range for
the shortest array.
Change-Id: I8c094c11e6fc9496c293871ccf93e3814c881e6f
Reviewed-on: https://go-review.googlesource.com/c/go/+/332553
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
types2.subst has an assertion that check is non-nil, but which breaks
Instantiate() with an interface type param (used when re-importing
instatiated type to types2). But this check was added when Instantiate()
was added, and things seem to work fine when the assertion is removed.
Fixes test/typeparam/mdempsky/7.go.
Change-Id: I4980f0b202a0b310a3c91a7a87f97576f54911de
Reviewed-on: https://go-review.googlesource.com/c/go/+/333155
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Trust: Dan Scales <danscales@google.com>
CL 332469 broke the Windows longtest builders, because it changed the
names assigned to autotmp variables that end up in export data.
The naming of autotmps doesn't actually matter, so instead we can just
hack iexport to write out "$autotmp" as a magic marker, and let the
reader replace it with an appropriate unique name. This is a little
hacky, but so is iexport's handling of autotmps already, and this
should also go away eventually with unified IR.
Change-Id: Ic17395337c745b66b9d63ee566299290214e6273
Reviewed-on: https://go-review.googlesource.com/c/go/+/333089
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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TryBot-Result: Go Bot <gobot@golang.org>
Up to this point, we were only handling typeparams that were converted
to empty or non-empty interfaces. But we have a dictionary entry for
each derived type (i.e. type derived from typeparams) as well. So, when
doing a conversion, look for the source type in both the type params and
derived types of the generic info, and then use the appropriate
dictionary entry.
Added some cases to ifaceconv.go (e.g. converting []T to an empty
interface).
Change-Id: I7bbad0128bec20ccccd93ae1d65c1ffd44ca79a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/333011
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
The (*T).M method expression is where M is a value method, but the type
(*T) is a pointer to the main type. In this case, after following any
embedded fields, we need to add an extra star operator when using the
receiver arg in the closure call.
Thanks to Cuong for finding/pointing out an example for this case
(typeparam/mdempsky/14.go) This example also shows that we now need the
ability to export/import OEFACE and OIDATA, which I added.
Change-Id: Ida0f81ce757fff78fec6276c60052ed71d207454
Reviewed-on: https://go-review.googlesource.com/c/go/+/333014
Run-TryBot: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Dan Scales <danscales@google.com>
This CL changes the existing excluded-test mechanism into a
known-failure mechanism instead. That is, it runs the test regardless,
but only reports if it failed (or succeeded) unexpectedly.
It also splits the known failures list into fine-grain failure lists
for types2, types2 w/ 32-bit target, -G=3, and unified.
Updates #46704.
Change-Id: I1213cbccf1bab6a92d9bfcf0d971a2554249bbff
Reviewed-on: https://go-review.googlesource.com/c/go/+/332551
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Dan Scales <danscales@google.com>
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Reviewed-by: Dan Scales <danscales@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Historically, it's been tedious to create and typecheck ir.OCALL
nodes, except by handing them off entirely to typecheck. This is
because typecheck needed context on whether the call is an expression
or statement, and to set flags like Func.ClosureCalled and
CallExpr.Use.
However, those flags have now been removed entirely by recent CLs, so
we can instead just provide a better typecheck.Call function for
constructing and typechecking arbitrary call nodes. Notably, this
simplifies things for unified IR, which can now incrementally
typecheck call expressions as it goes without worrying about context.
Change-Id: Icbdc55c3bd8be84a242323bc45006f9dec09fdcd
Reviewed-on: https://go-review.googlesource.com/c/go/+/332692
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
The Func.ClosureCalled flag is an optimization used by escape analysis
to detect closures that were directly called, so we know we have
visibility of the result flows. It's not needed by any other phases of
the compiler, so we might as well calculate it within escape analysis
too.
This saves some trouble during IR construction and trying to maintain
the ClosureCalled flag through inlining and copying.
Passes toolstash -cmp.
Change-Id: Ic53cecb7ac439745c0dfba2cd202b9cc40f1e47c
Reviewed-on: https://go-review.googlesource.com/c/go/+/332691
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Inlining replaces inlined calls with OINLCALL nodes, and then somewhat
clumsily tries to rewrite these in place without messing up
order-of-evaluation rules.
But handling these rules cleanly is much easier to do during order,
and escape analysis is the only major pass between inlining and
order. It's simpler to teach escape analysis how to analyze OINLCALL
nodes than to try to hide them from escape analysis.
Does not pass toolstash -cmp, but seems to just be line number
changes.
Change-Id: I1986cea39793e3e1ed5e887ba29d46364c6c532e
Reviewed-on: https://go-review.googlesource.com/c/go/+/332649
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Trust: Matthew Dempsky <mdempsky@google.com>
This CL formalizes the closure-var trick used for method-value
wrappers to be reusable for defining other functions that take hidden
parameters via the closure-context register. In particular, it:
1. Adds a new ir.NewHiddenParam function for creating hidden
parameters.
2. Changes ir.NewClosureVar to copy Type/Typecheck from the closure
variable, so that callers can needing to manually copy these.
3. Updates existing code accordingly (i.e., method-value wrappers to
start using ir.NewHiddenParam, and closure builders to stop copying
types).
Longer term, I anticipate using this to pass dictionaries to stenciled
functions within unified IR.
Change-Id: I9da3ffdb2a26d15c6e89a21b4e080686d6dc872c
Reviewed-on: https://go-review.googlesource.com/c/go/+/332612
Trust: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
We often need to create a function/method instantiation, but not a
dictionary, because the call to the instantiation will be using a
sub-dictionary. Also, main dictionaries are only need for concrete,
non-gcshape types, whereas instantiations will be for gcshape types (or
concrete types, for strict stenciling).
Created a helper function getDictOrSubdict() to reduce duplicated code.
Also, moved gfGetGfInfo() call in getDictionarySym() inside conditional
where it is needed, to avoid extra work when dictionary has already been
created.
Change-Id: I06587cb2ddc77de2f991e9f9eaf462d2c5a5d45e
Reviewed-on: https://go-review.googlesource.com/c/go/+/332550
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Added new struct instInfo for information about an instantiation (of a
generic function/method with gcshapes or concrete types). We use this to
remember the dictionary param node, the nodes where sub-dictionaries
need to be used, etc. The instInfo map replaces the Stencil map in
Package.
Added code to access sub-dictionary entries at the appropriate call
sites. We are currently still calculating the corresponding main
dictionary, even when we really only need a sub-dictionary. I'll clean
that up in a follow-up CL.
Added code to deal with "generic" closures (closures that reference some
generic variables/types). We decided that closures will share the same
dictionary as the containing function (accessing the dictionary via a
closure variable). So, the getGfInfo function now traverses all the
nodes of each closure in a function that it is analyzing, so that a
function's dictionary has all the entries needed for all its closures as
well. Also, the instInfo of a closure is largely shared with its
containing function. A good test for generic closures already exists
with orderedmap.go.
Other improvements:
- Only create sub-dictionary entries when the function/method
call/value or closure actually has type params in it. Added new test
file subdict.go with an example where a generic method has an
instantiated method call that does not depend not have type params.
Change-Id: I691b9dc024a89d2305fcf1d8ba8540e53c9d103f
Reviewed-on: https://go-review.googlesource.com/c/go/+/331516
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
This CL changes unified IR to incrementally typecheck the IR as it's
constructed. This is significant, because it means reader can now use
typecheck.Expr to typecheck sub-expressions when it's needed. This
should be helpful for construction and insertion of dictionaries.
This CL does introduce two quirks outside of unified IR itself,
which simplify preserving binary output:
1. Top-level declarations are sorted after they're constructed, to
avoid worrying about the order that closures are added.
2. Zero-padding autotmp_N variable names. Interleaving typechecking
means autotmp variables are sometimes named differently (since their
naming depends on the number of variables declared so far), and this
ensures that code that sorts variables by names doesn't suddenly sort
autotmp_8/autotmp_9 differently than it would have sorted
autotmp_9/autotmp_10.
While at it, this CL also updated reader to use ir.WithFunc instead of
manually setting and restoring ir.CurFunc. There's now only one
remaining direct use of ir.CurFunc.
Change-Id: I6233b4c059596e471c53166f94750917d710462f
Reviewed-on: https://go-review.googlesource.com/c/go/+/332469
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
We already use -lang=go1.18 to control the types2 type checker
behavior. This CL does the same for the parser.
Also, disable an assertion in the unified IR linker that depended on
the -G flag. This assertion was more useful during initial
bootstrapping of that code, but it's less critical now.
With these two changes, "GOEXPERIMENT=unified ./make.bash" is enough
to get a fully functional generics-enabled toolchain. There's no need
to continue specifying custom compiler flags later on.
Change-Id: I7766381926f3bb17eee2e5fcc182a38a39e937e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/332373
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
This change moves the type declarations and associated methods for
each of the remaining Type types into their respective files. Except
for import and comment adjustments, and receiver name adjustments for
the Underlying and String methods, no functional changes are made.
Change-Id: I3b9ccab3c85abea4852bacd28c2e47cec05c0bac
Reviewed-on: https://go-review.googlesource.com/c/go/+/332093
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
For method references (only), selectorExpr() now computes n.Selection,
which is the generic method that is selected. This allows us to compute
as needed the proper sub-dictionary for method reference. Also cleans up
some code for distinguishing method references from references to a
field that has a function value (especially in the presence of embedded
fields).
Change-Id: I9c5b789c15537ff48c70ca7a6444aa0420178a3a
Reviewed-on: https://go-review.googlesource.com/c/go/+/332095
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Rather than manually formatting a byte-string and then using a map
lookup to convert it to string, we can just use a slice. This avoids
both the overhead of formatting the byte slice and the map lookup.
Change-Id: Ia7b883632ea990ce9ee848dd4b4e4cdfbd611212
Reviewed-on: https://go-review.googlesource.com/c/go/+/332191
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
This CL is a first step towards incremental typechecking during IR
construction within unified IR. Namely, all top-level declarations are
now typechecked as they're constructed, except for assignments (which
aren't really declarations anyway).
Change-Id: I65763a7659bf2e0f5e89dfe9e709d60e0fa4c631
Reviewed-on: https://go-review.googlesource.com/c/go/+/332097
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Conflicts:
- src/cmd/compile/internal/walk/builtin.go
On dev.typeparams, CL 330194 changed OCHECKNIL to not require manual
SetTypecheck(1) anymore; while on master, CL 331070 got rid of the
OCHECKNIL altogether by moving the check into the runtime support
functions.
- src/internal/buildcfg/exp.go
On master, CL 331109 refactored the logic for parsing the
GOEXPERIMENT string, so that it could be more easily reused by
cmd/go; while on dev.typeparams, several CLs tweaked the regabi
experiment defaults.
Merge List:
+ 2021-06-30 4711bf30e5 doc/go1.17: linkify "language changes" in the runtime section
+ 2021-06-30 ed56ea73e8 path/filepath: deflake TestEvalSymlinksAboveRoot on darwin
+ 2021-06-30 c080d0323b cmd/dist: pass -Wno-unknown-warning-option in swig_callback_lto
+ 2021-06-30 7d0e9e6e74 image/gif: fix typo in the comment (io.ReadByte -> io.ByteReader)
+ 2021-06-30 0fa3265fe1 os: change example to avoid deprecated function
+ 2021-06-30 d19a53338f image: add Uniform.RGBA64At and Rectangle.RGBA64At
+ 2021-06-30 c45e800e0c crypto/x509: don't fail on optional auth key id fields
+ 2021-06-29 f9d50953b9 net: fix failure of TestCVE202133195
+ 2021-06-29 e294b8a49e doc/go1.17: fix typo "MacOS" -> "macOS"
+ 2021-06-29 3463852b76 math/big: fix typo of comment (`BytesScanner` to `ByteScanner`)
+ 2021-06-29 fd4b587da3 cmd/compile: suppress details error for invalid variadic argument type
+ 2021-06-29 e2e05af6e1 cmd/internal/obj/arm64: fix an encoding error of CMPW instruction
+ 2021-06-28 4bb0847b08 cmd/compile,runtime: change unsafe.Slice((*T)(nil), 0) to return []T(nil)
+ 2021-06-28 1519271a93 spec: change unsafe.Slice((*T)(nil), 0) to return []T(nil)
+ 2021-06-28 5385e2386b runtime/internal/atomic: drop Cas64 pointer indirection in comments
+ 2021-06-28 956c81bfe6 cmd/go: add GOEXPERIMENT to `go env` output
+ 2021-06-28 a1d27269d6 cmd/go: prep for 'go env' refactoring
+ 2021-06-28 901510ed4e cmd/link/internal/ld: skip the windows ASLR test when CGO_ENABLED=0
+ 2021-06-28 361159c055 cmd/cgo: fix 'see gmp.go' to 'see doc.go'
+ 2021-06-27 c95464f0ea internal/buildcfg: refactor GOEXPERIMENT parsing code somewhat
+ 2021-06-25 ed01ceaf48 runtime/race: use race build tag on syso_test.go
+ 2021-06-25 d1916e5e84 go/types: in TestCheck/issues.src, import regexp/syntax instead of cmd/compile/internal/syntax
+ 2021-06-25 5160896c69 go/types: in TestStdlib, import from source instead of export data
+ 2021-06-25 d01bc571f7 runtime: make ncgocall a global counter
Change-Id: I1ce4a3b3ff7c824c67ad66dd27d9d5f1d25c0023
Created functions to create GC shape type and names, based on a proposal
from Keith. Kept unsigned and signed integer types as different, since
they have different shift operations.
Included adding in alignment fields where padding is
required between fields, even though that seems like it will be fairly
uncommon to use.
Added some extra unusual struct typeparams (for testing the gcshape
names/types) in index.go test.
Change-Id: I8132bbd28098bd933435b8972ac5cc0b39f4c0df
Reviewed-on: https://go-review.googlesource.com/c/go/+/329921
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This change moves the position information to the place where it
is actually used. It also simplifies getting rid of it after use.
In the process, fixed a latent bug: Before this CL, embedded types
were sorted, but the corresponding embedding positions were not.
Removed the sorting altogether as it is not needed for type-checking.
Change-Id: I48003f317196d814326424430336b6cb222fdee6
Reviewed-on: https://go-review.googlesource.com/c/go/+/331514
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
With this change, interfaces are "completed" on-demand, when needed,
and the respective information (set of all methods, type constraints)
is recorded in a new typeSet data structure.
As a consequence, interfaces don't need to be explicitly completed
anymore and (internal) uses of interfaces have become much simpler.
This change also introduces a new field Interface.complete to indicate
that all methods and embedded elements have been set up. This prevent
the computation and recording (!) of a partial type set for erroneous
programs (if we compute the partial type set and store it, subsequent
type set accesses use the wrong type set which may lead to follow-on
errors).
Change-Id: I1ffc907f7d0fb93b3e987fe5ff9c6fa5cae00d7f
Reviewed-on: https://go-review.googlesource.com/c/go/+/329309
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This CL updates the unified IR export data serialization to explicitly
and separately record the derived types used by a declaration. The
readers currently just use this data to construct types/IR the same as
before, but eventually we can use it for emitting GC-shape
dictionaries.
Change-Id: I7d67ad9b3f1fbe69664bf19e056bc94f73507220
Reviewed-on: https://go-review.googlesource.com/c/go/+/331829
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Trust: Matthew Dempsky <mdempsky@google.com>
Separate generation of instantiation and dictionary name generation.
Add code to add subdictionaries to a dictionary. Not quite working
yet, as we need to trigger generation of the subdictionaries for methods.
Change-Id: I0d46053eba695b217630b06ef2f990f6a0b52d83
Reviewed-on: https://go-review.googlesource.com/c/go/+/331209
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Not having a field name for the method is not really correct, and makes
it look like an embedded field. In fact, currently types.CalcSize() in
abitest() is creating an error that is not actually reported.
Change-Id: I98c3a4abf5b6d610d9c3c56ce1042078374b5417
Reviewed-on: https://go-review.googlesource.com/c/go/+/331469
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As walk already create the wrapper if necessary.
With this change, test/inline.go need to be changed to use
errorcheckwithauto, for matching "inlining call to ..." in autogenerated
position for method value wrapper, since when we don't generate the
wrapper immediately during typecheck.
Change-Id: I9ffbec9ad3c2b7295546976e2fa517336c13c89b
Reviewed-on: https://go-review.googlesource.com/c/go/+/330838
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CL 330671 move rewriting method call to method expression to escape
analysis. This CL move the rewriting up further, into typecheck. It
helps simplify the code for dowstream passes, as they now only have to
deal with OCALLFUNC.
There're two notes:
- For -G=3, we can't rewrite d.M() where d is an instantiated receiver
in transformCall, but let irgen.stencil to rewrite it.
- Escape analysis still have to check for rewriting method calls, as
the devirtualization pass can still generate OCALLMETH.
Does not pass toolstash, since when the export data now contains method
expression calls instead of method calls.
Change-Id: I77465ef04d50dc4efedddca7eb55b3fc9483db0e
Reviewed-on: https://go-review.googlesource.com/c/go/+/330831
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This CL changes typecheck and order to use Type.LinkString for
computing map keys instead of Type.NameString. As mentioned in the
LinkString docs (added by the previous CL), LinkString reliably maps
type identity to string equality as long as the LinkString calls all
happen within the same compilation unit (which they do here).
This eliminates the need for subsequent types.Identical checks.
Change-Id: I32ff591e69d6f23f2dc6ebd5af343618ebe89013
Reviewed-on: https://go-review.googlesource.com/c/go/+/330911
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The original names "ShortString" and "LongString" refer back to the
fmt verbs used to request their formatting styles. However, I always
get confused working with them, in particular because (1) the
"ShortString" description, which uses package-path qualification, is
actually generally longer than the "LongString" description, which
uses package-name qualification; and (2) the documentation mentions
how they're often used, but doesn't actually describe why they're safe
for those purposes.
This CL renames them to "LinkString" and "NameString", respectively,
based on their primary use cases. It also attempts to more completely
describe the strings they return and how they can be used correctly.
Change-Id: I9158ae3eafa8ac53da31a78c7a6d929dc0199afe
Reviewed-on: https://go-review.googlesource.com/c/go/+/330910
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While initially building out unified IR, I didn't have any indexing
scheme. Everything was written out in order. Consequently, if I wanted
to write A before B, I had to compute A before B.
One particular example of this is handling closure variables: the
reader needs the list of closure variables before it can start reading
the function body, so I had to write them out first, and so I had to
compute them first in a separate, dedicated pass.
However, that constraint went away a while ago. For example, it's now
possible to replace the two-pass closure variable capture with a
single pass. We just write out the function body earlier, but then
wait to write out its index.
I anticipate this approach will make it easier to implement
dictionaries: rather than needing a separate pass to correctly
recognize and handle all of the generics cases, we can just hook into
the existing logic.
Change-Id: Iab1e07f9202cd5d2b6864eef10116960456214df
Reviewed-on: https://go-review.googlesource.com/c/go/+/330851
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This CL extends unified IR to handle creating wrapper methods. There's
relatively little about this code that's actually specific to unified
IR, but rewriting this logic allows a few benefits:
1. It decouples unified IR from reflectdata.methodWrapper, so the
latter code can evolve freely for -G=3's needs. This will also allow
the new code to evolve to unified IR's wrapper needs, which I
anticipate will operate slightly differently.
2. It provided an opportunity to revisit a lot of the code and
simplify/update it to current style. E.g., in the process, I
discovered #46903, which unified IR now gets correctly. (I have not
yet attempted to fix reflectdata.methodWrapper.)
3. It gives a convenient way for unified IR to ensure all of the
wrapper methods it needs are generated correctly.
For now, the wrapper generation is specific to non-quirks mode.
Change-Id: I5798de6b141f29e8eb6a5c563e7049627ff2868a
Reviewed-on: https://go-review.googlesource.com/c/go/+/330569
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This CL refactors out a single reflectdata.NeedEmit function that
reports whether the current compilation unit needs to emit the runtime
type descriptor and method wrappers for a given type.
As a minor side bonus, this CL also skips compiling the "error.Error"
wrapper in non-runtime packages. Package runtime already
unconditionally emitted the runtime type descriptor for error, so we
just need to make sure it emits the wrapper and other packages don't.
Passes toolstash -cmp.
Change-Id: Ic9ea219dfba8a0a57f2f42f817bdff7618732bff
Reviewed-on: https://go-review.googlesource.com/c/go/+/330754
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This CL refactors CaptureVars to use a visitor type so it's easier to
break out helper functions to review.
It also simplifies the quirks-mode handling of function literals:
instead of trying to maintain information about whether we're inside a
function literal or not, it now just rewrites the recorded position
information for any newly added free variables after walking the
function literal.
(Quirks mode is only for "toolstash -cmp"-style binary output testing
of normal code and will eventually be removed, so I don't think it's
important that this is an O(N^2) algorithm for deeply nested function
literals with lots of free variables.)
Change-Id: I0689984f6d88cf9937d4706d2d8de96415eaeee3
Reviewed-on: https://go-review.googlesource.com/c/go/+/330789
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Conflicts:
- src/go/types/check_test.go
CL 330629 fixed a bug in package qualification logic
- src/internal/buildcfg/exp.go
CL 329930 make parseExperiments get go arch string as input param
Merge List:
+ 2021-06-25 37f9a8f69d go/types: fix a bug in package qualification logic
+ 2021-06-24 c309c89db5 reflect: document that InterfaceData is a low-entropy RNG
+ 2021-06-24 cce621431a cmd/compile: fix wrong type in SSA generation for OSLICE2ARRPTR
+ 2021-06-24 600a2a4ffb cmd/go: don't try to add replaced versions that won't be selected
+ 2021-06-24 a9bb38222a net: remove hard-coded timeout in dialClosedPort test helper
+ 2021-06-24 86d72fa2cb time: handle invalid UTF-8 byte sequences in quote to prevent panic
+ 2021-06-24 44a12e5f33 cmd/go: search breadth-first instead of depth-first for test dependency cycles
+ 2021-06-24 73496e0df0 net: use absDomainName in the Windows lookupPTR test helper
+ 2021-06-24 222ed1b38a os: enable TestFifoEOF on openbsd
+ 2021-06-22 0ebd5a8de0 cmd/go: update ToolTags based on GOARCH value
+ 2021-06-22 5bd09e5efc spec: unsafe.Add/Slice are not permitted in statement context
+ 2021-06-22 666315b4d3 runtime/internal/atomic: remove incorrect pointer indirection in comment
+ 2021-06-22 63daa774b5 go/types: guard against checking instantiation when generics is disabled
+ 2021-06-22 197a5ee2ab cmd/gofmt: remove stale documentation for the -G flag
+ 2021-06-22 9afd158eb2 go/parser: parse an ast.IndexExpr for a[]
+ 2021-06-21 1bd5a20e3c cmd/go: add a -go flag to 'go mod graph'
+ 2021-06-21 761edf71f6 cmd/internal/moddeps: use a temporary directory for GOMODCACHE if needed
+ 2021-06-21 a0400420ad cmd/internal/moddeps: use -mod=readonly instead of -mod=mod
+ 2021-06-21 3f9ec83b10 cmd/go: document GOPPC64 environment variable
+ 2021-06-21 20bdfba325 go/scanner: fall back to next() when encountering 0 bytes in parseIdentifier
+ 2021-06-21 44f9a3566c database/sql: fix deadlock test in prepare statement
Change-Id: I16490e8ea70ee65081f467223857033842da513a
CL 330331 extended escape analysis to analyze method expression calls
the same as normal method calls. We can now simply desugar method calls
into function calls in escape analysis.
To do this, two things must be changed:
- Folding the rewrite method call to method expression call into an
export function in typecheck package, so others can re-use it.
- walkCall now have to call usemethod for method expression calls.
(It seems to me this is a bug in current tip, because if one write
(*rtype).Method(typ, i) in package "reflect", then the function won't
be marked with AttrReflectMethod)
Passes toolstash -cmp.
Change-Id: I4745ab6110b417c7fd32949cc799811a882cd2ec
Reviewed-on: https://go-review.googlesource.com/c/go/+/330671
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OCALLMETH is rewritten by walkCall to OCALLFUNC, and other places in
backend have already caught it. So do the same thing in state.expr for
consistency and prevent mis-use in frontend side.
While at it, also remove un-used function getParam.
Change-Id: I03e1ea907e0bcb05fa35fa81804c33b5c9a4d77e
Reviewed-on: https://go-review.googlesource.com/c/go/+/330669
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In normal build configurations, we test both -G=0 and -G=3 so that we
can test both typecheck and types2. However, GOEXPERIMENT=unified
always uses types2, so testing both is redundant.
Change-Id: I697d2ad916d8b17cfaf4f0b6b32eec380d4e7906
Reviewed-on: https://go-review.googlesource.com/c/go/+/330755
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Similar to the previous CL to suppress escape analysis diagnostics for
method wrappers, suppress liveness analysis diagnostics too. It's
hardly useful to know that all of a wrapper method's arguments are
live at entry.
Change-Id: I0d1e44552c6334ee3b454adc107430232abcb56a
Reviewed-on: https://go-review.googlesource.com/c/go/+/330749
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This is code in progress to generate the two main other types of entries
in dictionaries:
- all types in the instantiated function derived from the type
arguments (which are currently concrete, but will eventually be
gcshapes)
- pointers (i.e. mainly the unique name) to all needed sub-dictionaries
In order to generate these entries, we now generate cached information
gfInfo about generic functions/methods that can be used for creating the
instantiated dictionaries. We use the type substituter to compute the
right type args for instantiated sub-dictionaries.
If infoPrintMode is changed to true, the code prints out all the
information gathered about generic functions, and also the entries in
all the dictionaries that are instantiated. The debug mode also prints
out the locations where we need main dictionaries in non-instantiated
functions.
Other changes:
- Moved the dictionary generation back to stencil.go from reflect.go,
since we need to do extra analysis for the new dictionary entries. In
the process, made getInstantiation generate both the function
instantiation and the associated dictionary.
- Put in small change for now in reflect.go, so that we don't try
generate separate dictionaries for Value[T].get and the
auto-generated (*Value[T]).get. The auto-generated wrapper shouldn't really
need a dictionary.
- Detected, but not handling yet, a new case which needs
dictionaries - closures that have function params or captured
variables whose types are derived from type arguments.
- Added new tests in dictionaryCapture for use of method
value/expressions in generic functions and for mutually recursive
generic functions.
Change-Id: If0cbde8805a9f673a23f5ec798769c85c9c5359b
Reviewed-on: https://go-review.googlesource.com/c/go/+/327311
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This CL changes escape analysis to skip reporting diagnostics (at
least for parameter tagging) for generated wrappers.
We're inconsistent about when/where wrappers are generated, which made
errorcheck tests of escape analysis unnecessarily brittle to changes
in wrapper generation. This CL addresses this making errorcheck tests
only care about tagging of the actual functions themselves, not the
wrappers too.
Change-Id: Ia1a0b9dabee4d4162b05647f871db03b032c945a
Reviewed-on: https://go-review.googlesource.com/c/go/+/330689
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The previous code for walking the syntax AST to find declarations
needed to know whether a declaration appeared within block scope, but
syntax.Crawl (née syntax.Walk) made that somewhat awkward.
This CL simplifies it a little, taking advantage of syntax.Walk's
support for keeping per-subtree state.
Change-Id: I03c7da8c44bec40f88e983852dc6bbab7e6ac13c
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- Fix handling of method expressions with embedded fields. Fix an
incorrect lookup for method expressions, which have only the
top-level type (and don't have DOT operations for the embedded
fields). Add the embedded field dot operations into the closure.
- Don't need a dictionary and so don't build a closure if the last
embedded field reached in a method expression is an interface value.
- Fix methodWrapper() to use the computed 'dot' node in the
generic-only part of the code.
- For a method expression, don't create a generic wrapper if the last
embedded field reached before the method lookup is an interface.
Copied cmd/compile/internal/types2/testdata/fixedbugs/issue44688.go2 to
test/typeparam/issue44688.go, made it fully runnable (rather than just
for compilation), and added a bunch more tests.
Change-Id: I90c1aa569e1c7272e986c9d2ae683e553c3a38a1
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This CL adds go/ast's Visitor, Walk, and Inspect functions to package
syntax. Having functions with the same API and semantics as their
go/ast counterparts reduces the mental load of context switching
between go/ast and syntax.
It also renames the existing Walk function into Crawl, and marks it as
a deprecated wrapper around Inspect. (I named it "Crawl" because it's
less functional than "Walk"... get it??)
There aren't that many callers to Crawl, so we can probably remove it
in the future. But it doesn't seem pressing, and I'm more concerned
about the risk of forgetting to invert a bool condition somewhere.
Change-Id: Ib2fb275873a1d1a730249c9cb584864cb6ec370e
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When wrapping a go/defer statement like:
go f(g(), "x", 42)
we were wrapping it like:
_0, _1, _2, _3 := f, g(), "x", 42
go func() { _0(_1, _2, _3) }()
This is simple and general (and often necessary), but suboptimal in
some cases, such as this. Instead of evaluating the constant arguments
at the go/defer statement, and storing them into the closure context,
we can just keep them in the wrapped call expression.
This CL changes the code to instead generate (assuming f is a declared
function, not a function-typed variable):
_0 := g()
go func() { f(_0, "x", 42) }()
Change-Id: I2bdd4951e7ee93363e1656ecf9b5bd69a121c38a
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This CL extends escape analysis to analyze function calls using method
expressions the same as it would a normal method call. That is, it now
analyzes "T.M(recv, args...)" the same as "recv.M(args...)".
This is useful because it means the frontend can eventually stop
supporting both function calls and method calls. We can simply desugar
method calls into function calls, like we already do in the backend to
simplify SSA construction.
Change-Id: I9cd5ec0d534cbcd9860f0014c86e4ae416920c26
Reviewed-on: https://go-review.googlesource.com/c/go/+/330331
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This CL moves two bits of related code from order.go to escape
analysis:
1. The recognition of "unsafe uintptr" arguments passed to
syscall-like functions.
2. The wrapping of go/defer function calls in parameter-free function
literals.
As with previous CLs, it would be nice to push this logic even further
forward, but for now escape analysis seems most pragmatic.
A couple side benefits:
1. It allows getting rid of the uintptrEscapesHack kludge.
2. When inserting wrappers, we can move some expressions into the
wrapper and escape analyze them better. For example, the test
expectation changes are all due to slice literals in go/defer calls
where the slice is now constructed at the call site, and can now be
stack allocated.
Change-Id: I73679bcad7fa8d61d2fc52d4cea0dc5ff0de8c0c
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Currently ORECOVER is a single operation that both (1) calculates
the (logical) caller frame pointer and (2) calls runtime.gorecover.
This is normally fine, but it's inconvenient for regabi, which wants
to wrap "defer recover()" into "defer func() { recover() }" and
needs (1) and (2) to happen at different times.
The current solution is to apply walkRecover early to split it into
the two steps, but calling it during order is a minor layering
violation. It works well today because the order and walk phases are
closely related anyway and walkRecover is relatively simple, but it
won't work for go/defer wrapping earlier into the frontend.
This CL adds a new, lower-level ORECOVERFP primitive, which represents
just part (2); and OGETCALLER{PC,SP} primitives, which provide a way
to compute (1) in the frontend too.
OGETCALLERPC isn't needed/used today, but it seems worth including for
completeness. Maybe it will be useful at some point for intrinsifying
runtime.getcaller{pc,sp}, like we already do for runtime.getg.
Change-Id: Iaa8ae51e09306c45c147b6759a5b7c24dcc317ca
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The current go/defer wrapping code goes to some length to clear
ClosureCalled when a function call will end up not being called
directly, and so it will need to use the context register.
But we already have a flag to indicate we need to use the context
register: Needctxt. The real issue here is just that buildssa was
using fn.ClosureCalled instead of fn.Needctxt.
Change-Id: Ic9f5f23b66eb467fc61fa84eacb45d46c54133d2
Reviewed-on: https://go-review.googlesource.com/c/go/+/330329
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This CL is a prep refactoring for an upcoming CL to move go/defer
wrapping into escape analysis. That CL is unfortunately unavoidably
complex and subtle, so this CL takes care of some more mundane
refactoring details.
Change-Id: Ifbefe1d522a8d57066646be09536437f42e7082c
Reviewed-on: https://go-review.googlesource.com/c/go/+/330251
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This flag is only needed to prevent the directClosureCall optimization
in walkCall, when called for walkGoDefer. But walkGoDefer don't need
to call walkCall: at this point in the compile, the call expression
isn't a real call anymore.
Instead, we just need to walkExpr on the function expression.
Change-Id: I8a5176cfe1bff53700cbd21ed1b479ebd9a839ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/330271
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CaptureName currently does a few things: checks if a variable needs to
be captured at all; checks if the variable has already been captured;
and creates and saves a new variable. This full suite of functionality
is useful for noder and irgen, but unified IR and other backend code
only has a need for the last feature.
This CL refactors CaptureName a little bit and extracts out
NewClosureVar as a function usable for callers that don't need the
extra features of CaptureName.
Change-Id: I8a67c6375e44babe53344bf78e335535c57f9607
Reviewed-on: https://go-review.googlesource.com/c/go/+/330193
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This CL reorganizes the code from package escape into multiple files,
so the relationships between bits of code are hopefully easier to
follow. Besides moving code around and adding necessary
copyright/import declarations, no code is touched at all.
Change-Id: Iddd396c3a140f4eb1a7a6266d92a4098118b575b
Reviewed-on: https://go-review.googlesource.com/c/go/+/329989
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This CL removes the special escape analysis tags added to support
//go:uintptrescapes and calls to external functions. Instead, these
are kept as function pragmas.
This CL by itself isn't very interesting, but I expect will help with
subsequent cleanups I have planned here.
Change-Id: Ifb960289a27e0a6295ce2d2f5ec233cac590522b
Reviewed-on: https://go-review.googlesource.com/c/go/+/329969
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Originally, overloading -d=inlfuncswithclosures=0 to enable quirks
mode was convenient because toolstash -cmp doesn't provide a way to
pass different gcflags to the installed vs stashed toolchains. Prior
to unified IR being merged, the stashed toolchain wouldn't know about
or accept any unified-specific flags.
However, this concern is no longer applicable since unified IR has
been merged, and the TestUnifiedCompare test can easily specify
different flag sets for the baseline and experiment build configs.
This CL adds a new -d=unifiedquirks flag to enable quirks mode, so
that it's possible to test unified IR with -d=inlfuncswithclosures=0
without also affecting a bunch of other compilation details.
Change-Id: Id1932f332822622aa8617278e82ec6d1a53b1b46
Reviewed-on: https://go-review.googlesource.com/c/go/+/329733
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This CL extends the unified export data format's existing sync
mechanism to save writer stacks, controlled by the -d=syncframes debug
flag. This allows readers to provide more details when reporting
desync errors, which should simplify development of the data format
and the various reader/writer implementations.
For example, CL 328051 updated reader and writer, but missed making a
similar change to the linker (fix in CL 328054). Re-reviewing the CL
in isolation after the failure, it was not immediately obvious what
was going wrong. But the pair of stack traces below identifies exactly
what happened: it should have updated linker.relocFuncExt to write out
the new sync marker too.
```
data sync error: package "internal/abi", section 6, index 4, offset 536
found UseReloc, written at:
/home/mdempsky/wd/go/src/cmd/compile/internal/noder/encoder.go:221: (*encoder).reloc +0x44
/home/mdempsky/wd/go/src/cmd/compile/internal/noder/linker.go:214: (*linker).relocFuncExt +0x580
/home/mdempsky/wd/go/src/cmd/compile/internal/noder/linker.go:233: (*linker).relocTypeExt +0x234
/home/mdempsky/wd/go/src/cmd/compile/internal/noder/linker.go:161: (*linker).relocObj +0x2198
/home/mdempsky/wd/go/src/cmd/compile/internal/noder/linker.go:64: (*linker).relocIdx +0x196
expected ImplicitTypes, reading at:
/home/mdempsky/wd/go/src/cmd/compile/internal/noder/reader.go:796: (*reader).implicitTypes +0x36
/home/mdempsky/wd/go/src/cmd/compile/internal/noder/reader.go:810: (*reader).addBody +0x81
/home/mdempsky/wd/go/src/cmd/compile/internal/noder/reader.go:727: (*reader).funcExt +0x542
/home/mdempsky/wd/go/src/cmd/compile/internal/noder/reader.go:651: (*reader).method +0x324
/home/mdempsky/wd/go/src/cmd/compile/internal/noder/reader.go:557: (*pkgReader).objIdx +0x2704
```
Change-Id: I911193edd2a965f81b7459f15fb613a773584685
Reviewed-on: https://go-review.googlesource.com/c/go/+/328909
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CL 328336 introduced two new packages that the runtime and other
low-level packages depend on. Include them as targets to copy in this
test with other such packages.
Fixes the dev.typeparams longtest builders.
Change-Id: Ia886f0264962a68acd06ebca002eef8515f06487
Reviewed-on: https://go-review.googlesource.com/c/go/+/329251
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Unified includes a check to make sure that types2 memory has been
garbage collected, but it relies on precise finalization, which we
provide (for dynamically allocated objects, at least) but isn't
guaranteed by the Go spec. In particular, Go 1.4 doesn't provide this.
The check is strictly unnecessary and only exists to make sure we
don't regress and start holding onto types2 memory accidentally. So
just disable the check during bootstrap builds.
Change-Id: Ie54fe53b2edba02c0b0b1e5ae39d81be8a0ace8d
Reviewed-on: https://go-review.googlesource.com/c/go/+/329269
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Currently, callMethod has some ABI translation code that is not agnostic
of endianness. This change rectifies that by adding a method to
internal/abi.RegArgs for safely returning an offset into a register slot
that's endianness-dependent.
No tests for this because it's just best-effort. There's no actual way
to test this because we don't support a register ABI on any big endian
architectures yet.
Change-Id: Ic68d9ee1bfdea0fc2992d467d749e2b083e92de3
Reviewed-on: https://go-review.googlesource.com/c/go/+/328348
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Lots of constants in these packages start with Goarch and Goos, which is
redundant. Instead, add the "Is" prefix to make the constant clearer,
and to differentiate from the arch family constants.
Change-Id: Id92c1d3e911296a72949f8c9d649f142e7dc9d17
Reviewed-on: https://go-review.googlesource.com/c/go/+/328343
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This change extracts the GOOS and GOARCH specific constants from
runtime/internal/sys into packages that are available to the entire
standard library.
This change does not yet update the runtime and associated packages to
use them, and instead adds constants to runtime/internal/sys to forward
the constants defined by these new packages.
Change-Id: I14d574b8d7bfe599ad25da29dc1b39716e35a734
Reviewed-on: https://go-review.googlesource.com/c/go/+/328336
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Setting `-gcflags=all=-d=unified` works for normal builds/tests, but
seems to have trouble with the test/run.go regress tests. So add a
GOEXPERIMENT knob to allow another way to turn on unified IR
construction, which plays better with all.bash.
While here, update two existing test expectations that currently fail
during GOEXPERIMENT=unified ./all.bash:
1. misc/cgo/errors/testdata/err2.go is testing column positions, and
types2 gets one case slightly better, and another case slightly
worse. For now, the test case is updated to accept both.
2. fixedbugs/issue42284.go is added to the list of known failures,
because it fails for unified IR. (It's an escape analysis test, and
escape analysis is working as expected; but unified is formatting an
imported constant value differently than the test's regexp expects.)
Updates #46786.
Change-Id: I40a4a70fa1b85ac87fcc85a43687f5d81e011ec0
Reviewed-on: https://go-review.googlesource.com/c/go/+/328215
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This ports the fix in CL 328050 for typecheck to types2.
The fix is not identical, due to code structure differences between
typecheck and types2, but the idea is the same. We only do the untyped
conversion when both operands can be mixed.
Updates #46749
Change-Id: Ib2c63ba0d5dd8bf02318b1bfdfe51dcaeeeb7f82
Reviewed-on: https://go-review.googlesource.com/c/go/+/328053
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This is a port of CL 321689 to go/types. It differs from that CL in the
uses of the position, AST and error APIs, and in not factoring out an
unimplemented() helper (this helper didn't already exist in go/types, so
it seemed cleaner to defer adding it).
Change-Id: I577a57297caf35eb7a23f63f3f52037a7bb528ea
Reviewed-on: https://go-review.googlesource.com/c/go/+/326069
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This is an approximate port of CL 321109 to go/parser, though go/parser
does not have the same internal APIs as cmd/compile/internal/syntax, so
this CL required some refactoring.
Change-Id: I146ef530c969d61bab99f98f4de94b862e103ddc
Reviewed-on: https://go-review.googlesource.com/c/go/+/325703
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This is a port of CL 307371 to go/parser, adding support for the new
embedded type expressions. As in that CL, type lists continue to be
accepted.
This CL also revealed a pre-existing bug related to embedded instances:
the parser was failing to parse embedded instances with multiple type
arguments, due to not consuming the initial ','. This is fixed, and
along the way TestErrors is modified to use subtests.
Several missing tests cases were added to exprstring_test.go. These must
have been missed in an earlier CL.
Change-Id: I452769536998cddb1618bebdba675fc09d48a12f
Reviewed-on: https://go-review.googlesource.com/c/go/+/325690
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This CL removes the typeparams build constraint guarding changes to the
go/ast and go/types APIs. Notably it does not remove all indirection
added to hide the type parameter API: the go/internal/typeparams
package is not yet deleted, nor have go/parser or go/types been updated
to access type parameter data directly. This will be done in a follow-up
CL; the intent of this CL is to make it easier to support the new type
set syntax, and to experiment with different AST APIs.
Change-Id: I13ea0285752991b87b3aead1d1371e1f3f817b1a
Reviewed-on: https://go-review.googlesource.com/c/go/+/325689
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This CL implements a few improvements to SSA devirtualization to make
it simpler and more general:
1. Change reflectdata.ITabAddr to now immediately generate the wrapper
functions and write out the itab symbol data. Previously, these were
each handled by separate phases later on.
2. Removes the hack in typecheck where we marked itabs that we
expected to need later. Instead, the calls to ITabAddr in walk now
handle generating the wrappers.
3. Changes the SSA interface call devirtualization algorithm to just
use the itab symbol data (namely, its relocations) to figure out what
pointer is available in memory at the given offset. This decouples it
somewhat from reflectdata.
Change-Id: I8fe06922af8f8a1e7c93f5aff2b60ff59b8e7114
Reviewed-on: https://go-review.googlesource.com/c/go/+/327871
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In reflectdata, we have a hack to only apply inlining for (*T).M
wrappers generated around T.M. This was a hack because I didn't
understand at the time why other cases were failing.
But I understand now: during export, we generally skip exporting the
inline bodies for unexported methods (unless they're reachable through
some other exported method). But it doesn't take into account that
embedding a type requires generating wrappers for promoted methods,
including imported, unexported methods.
For example:
package a
type T struct{}
func (T) m() {} // previously omitted by exported
package b
import "./a"
type U struct { a.T } // needs U.m -> T.m wrapper
This CL adds extra logic to the crawler to recognize that T is an
exported type directly reachable by the user, so *all* of its methods
need to be re-exported.
This finally allows simplifying reflectdata.methodWrapper to always
call inline.InlineCalls.
Change-Id: I25031d41fd6b6cd69d31c6a864b5329cdb5780e2
Reviewed-on: https://go-review.googlesource.com/c/go/+/327872
Trust: Matthew Dempsky <mdempsky@google.com>
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CL 328051 introduced new syncImplicitTypes, but forgot to add a sync
after syncAddBody in linker.relocFuncExt, cause the compiler crashes
when reading in package data.
Adding missing w.sync(syncImplicitTypes) call fixes this.
While at it, also run go generate to update code generated for
syncImplicitTypes, which is also missed in CL 328051.
Change-Id: Ic65092f69f8d8e63de15989c7f15b6e5633d8f9e
Reviewed-on: https://go-review.googlesource.com/c/go/+/328054
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- test/run.go
CL 328050 added fixedbugs/issue46749.go to -G=3 excluded files list
Merge List:
+ 2021-06-16 785a8f677f cmd/compile: better error message for invalid untyped operation
+ 2021-06-16 a752bc0746 syscall: fix TestGroupCleanupUserNamespace test failure on Fedora
+ 2021-06-15 d77f4c0c5c net/http: improve some server docs
+ 2021-06-15 219fe9d547 cmd/go: ignore UTF8 BOM when reading source code
+ 2021-06-15 723f199edd cmd/link: set correct flags in .dynamic for PIE buildmode
+ 2021-06-15 4d2d89ff42 cmd/go, go/build: update docs to use //go:build syntax
+ 2021-06-15 033d885315 doc/go1.17: document go run pkg@version
+ 2021-06-15 ea8612ef42 syscall: disable c-shared test when no cgo, for windows/arm
+ 2021-06-15 abc56fd1a0 internal/bytealg: remove duplicate go:build line
+ 2021-06-15 4061d3463b syscall: rewrite handle inheritance test to use C rather than Powershell
+ 2021-06-15 cf4e3e3d3b reflect: explain why convertible or comparable types may still panic
+ 2021-06-14 7841cb14d9 doc/go1.17: assorted fixes
+ 2021-06-14 8a5a6f46dc debug/elf: don't apply DWARF relocations for ET_EXEC binaries
+ 2021-06-14 9d13f8d43e runtime: update the variable name in comment
+ 2021-06-14 0fd20ed5b6 reflect: use same conversion panic in reflect and runtime
+ 2021-06-14 6bbb0a9d4a cmd/internal/sys: mark windows/arm64 as c-shared-capable
+ 2021-06-14 d4f34f8c63 doc/go1.17: reword "results" in stack trace printing
Change-Id: I60d1f67c4d48cd4093c350fc89bd60c454d23944
This CL adds a new unified IR construction mode to the frontend. It's
purely additive, and all files include "UNREVIEWED" at the top, like
how types2 was initially imported. The next CL adds a -d=unified flag
to actually enable unified IR mode.
See below for more details, but some highlights:
1. It adds ~6kloc (excluding enum listings and stringer output), but I
estimate it will allow removing ~14kloc (see CL 324670, including its
commit message);
2. When enabled by default, it passes more tests than -G=3 does (see
CL 325213 and CL 324673);
3. Without requiring any new code, it supports inlining of more code
than the current inliner (see CL 324574; contrast CL 283112 and CL
266203, which added support for inlining function literals and type
switches, respectively);
4. Aside from dictionaries (which I intend to add still), its support
for generics is more complete (e.g., it fully supports local types,
including local generic types within generic functions and
instantiating generic types with local types; see
test/typeparam/nested.go);
5. It supports lazy loading of types and objects for types2 type
checking;
6. It supports re-exporting of types, objects, and inline bodies
without needing to parse them into IR;
7. The new export data format has extensive support for debugging with
"sync" markers, so mistakes during development are easier to catch;
8. When compiling with -d=inlfuncswithclosures=0, it enables "quirks
mode" where it generates output that passes toolstash -cmp.
--
The new unified IR pipeline combines noding, stenciling, inlining, and
import/export into a single, shared code path. Previously, IR trees
went through multiple phases of copying during compilation:
1. "Noding": the syntax AST is copied into the initial IR form. To
support generics, there's now also "irgen", which implements the same
idea, but takes advantage of types2 type-checking results to more
directly construct IR.
2. "Stenciling": generic IR forms are copied into instantiated IR
forms, substituting type parameters as appropriate.
3. "Inlining": the inliner made backup copies of inlinable functions,
and then copied them again when inlining into a call site, with some
modifications (e.g., updating position information, rewriting variable
references, changing "return" statements into "goto").
4. "Importing/exporting": the exporter wrote out the IR as saved by
the inliner, and then the importer read it back as to be used by the
inliner again. Normal functions are imported/exported "desugared",
while generic functions are imported/exported in source form.
These passes are all conceptually the same thing: make a copy of a
function body, maybe with some minor changes/substitutions. However,
they're all completely separate implementations that frequently run
into the same issues because IR has many nuanced corner cases.
For example, inlining currently doesn't support local defined types,
"range" loops, or labeled "for"/"switch" statements, because these
require special handling around Sym references. We've recently
extended the inliner to support new features like inlining type
switches and function literals, and they've had issues. The exporter
only knows how to export from IR form, so when re-exporting inlinable
functions (e.g., methods on imported types that are exposed via
exported APIs), these functions may need to be imported as IR for the
sole purpose of being immediately exported back out again.
By unifying all of these modes of copying into a single code path that
cleanly separates concerns, we eliminate many of these possible
issues. Some recent examples:
1. Issues #45743 and #46472 were issues where type switches were
mishandled by inlining and stenciling, respectively; but neither of
these affected unified IR, because it constructs type switches using
the exact same code as for normal functions.
2. CL 325409 fixes an issue in stenciling with implicit conversion of
values of type-parameter type to variables of interface type, but this
issue did not affect unified IR.
Change-Id: I5a05991fe16d68bb0f712503e034cb9f2d19e296
Reviewed-on: https://go-review.googlesource.com/c/go/+/324573
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Two non-conflict changes included because they're needed for all.bash:
1. Bump internal/goversion.Version to 18. This will happen eventually
anyway (dev.typeparams will not be merged back to Go 1.17), and is
needed for cmd/api to allow new API additions.
2. Add fixedbugs/issue46725.go (new test added on master) to the list
of known failures for -G=3. This test exercises a bug that was fixed
in typecheck, but -G=3 mode has duplicated that code and will need to
be fixed as well. That's outside of the scope of a merge.
Conflicts:
- src/runtime/traceback.go
Nearby lines were removed on both master and dev.typeparams.
Merge List:
+ 2021-06-14 fdab5be159 doc/go1.17: further revise OpenBSD release notes
+ 2021-06-14 326ea438bb cmd/compile: rewrite a, b = f() to use temporaries when type not identical
+ 2021-06-14 3249b645c9 cmd/compile: factor out rewrite multi-valued f()
+ 2021-06-13 14305bf0b9 misc/cgo: generate Windows import libraries for clang
+ 2021-06-13 24cff0f044 cmd/go, misc/cgo: skip test if no .edata
+ 2021-06-13 67b1b6a2e3 cmd/compile: allow ir.OSLICE2ARRPTR in mayCall
+ 2021-06-12 1ed0d129e9 runtime: testprogcgo: don't call exported Go functions directly from Go
+ 2021-06-12 9d46ee5ac4 reflect: handle stack-to-register translation in callMethod
+ 2021-06-11 e552a6d312 cmd/go: remove hint when no module is suggested
+ 2021-06-11 16b5d766d8 syscall: do not load native libraries on non-native powershell on arm
+ 2021-06-11 77aa209b38 runtime: loop on EINTR in macOS sigNoteSleep
+ 2021-06-11 e2dc6dd5c9 doc/go1.17: clean up formatting of gofmt section
+ 2021-06-11 2f1128461d cmd/go: match Windows paths in TestScript/mod_invalid_version
+ 2021-06-11 2721da2608 doc/go1.17: fix formatting near httptest
+ 2021-06-10 770f1de8c5 net/http: remove test-only private key from production binaries
+ 2021-06-10 8d11b1d117 cmd/go: report the imports of CompiledGoFiles in ImportMap
+ 2021-06-10 dc00dc6c6b crypto/tls: let HTTP/1.1 clients connect to servers with NextProtos "h2"
+ 2021-06-09 27f83723e9 api: promote next to go1.17
+ 2021-06-09 182157c81a doc/go1.17: remove lingering TODO
+ 2021-06-09 a5bc060b42 doc/go1.17: document strconv changes for Go 1.17
+ 2021-06-09 1402b27d46 strconv: document parsing of leading +/-
+ 2021-06-09 df35ade067 doc/go1.17: document //go:build lines
+ 2021-06-09 e4e7807d24 net/http: add AllowQuerySemicolons
+ 2021-06-09 ec3026d032 doc/go1.17: remove TODO for ports section
+ 2021-06-09 e6dda19888 net/url: reject query values with semicolons
+ 2021-06-09 139e935d3c math/big: comment division
+ 2021-06-09 aa5540cd82 cmd/compile: make map.zero symbol content-addressable
+ 2021-06-09 07ca28d529 cmd/link: fix bug in -strictdups checking of BSS symbols
+ 2021-06-08 bcecae2af6 doc/go1.17: mention new possibility of type conversion panicking
+ 2021-06-08 63dcab2e91 doc/go1.17: mention new vet checks sigchanyzer and stdmethods.
+ 2021-06-08 6551763a60 doc/go1.17: mention block profile bias fix
+ 2021-06-08 cb80937bf6 Revert "doc/go1.17: mention block profile bias fix"
+ 2021-06-08 d3e3d03666 net: reject leading zeros in IP address parsers
+ 2021-06-08 da4a640141 doc/go1.17: revise OpenBSD release notes
+ 2021-06-08 689f4c7415 doc/go1.17: mention block profile bias fix
+ 2021-06-08 9afe071c60 doc/go1.17: remove TODO for Tools section
+ 2021-06-08 f753d7223e doc/go1.17: resolve TODO for cmd/cover
+ 2021-06-08 9498b0155d cmd/go: in Go 1.17+ modules, add indirect go.mod dependencies separately from direct ones
+ 2021-06-08 949f00cebe doc/go1.17: add release notes for crypto packages
+ 2021-06-08 0fb3e2c184 doc/go1.17: add a release note for the '-compat' flag to 'go mod tidy'
+ 2021-06-08 2169deb352 cmd/compile: use t.AllMethods when sorting typesByString
+ 2021-06-08 c20bcb6488 runtime: remove out-of-date comments about frame skipping
+ 2021-06-07 39c39ae52f doc: document Go 1.17 language changes
+ 2021-06-07 dc8b558951 cmd/dist: pass -Wno-lto-type-mismatch in swig_callback_lto
+ 2021-06-07 909dd5e010 strconv: ParseFloat: always return ErrSyntax for bad syntax
Change-Id: Iffdf379d0275bbd12d50149ce38634773ced481d
User errors should be reported in noder and/or typecheck, we already
know the -lang flag's value during noding, and checking it then works
better for unified IR.
The "multiple files for type" and "cannot apply to var of type" errors
should also be moved to typecheck, but then they'd have to be
duplicated for -G=3 mode (because it avoids typecheck). So those are
left behind for now.
Change-Id: I7caf16163c9faf975784acacdb8147514d2e698e
Reviewed-on: https://go-review.googlesource.com/c/go/+/327609
Trust: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
I initially made NewClosureFunc take an "outerfn *Func" parameter
because I was planning on having it handle closure naming, until
remembering that naming needs to wait until typecheck for noder.
We don't actually need the *Func yet, just to know whether it's
non-nil. So change the parameter to a bool, which simplifies callers a
little.
Change-Id: Ie83ee4a1ed0571ac6d3879ffd8474c6c3c1a9ff9
Reviewed-on: https://go-review.googlesource.com/c/go/+/327450
Trust: Matthew Dempsky <mdempsky@google.com>
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This CL copies go/build's splitQuoted function (used for parsing #cgo
directives within `import "C"` preambles) to parse test recipe
commands. In particular, this now allows writing "build" and "run"
tests that use -gcflags to pass multiple compiler flags.
Change-Id: I0d18a9c13a4ce24bbdfa1da8662c0498c93a6762
Reviewed-on: https://go-review.googlesource.com/c/go/+/327275
Trust: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
typecheck.tcClosure is complicated with many code flows because all of
its callers setup the closure funcs in slightly different ways. E.g.,
it's non-obvious who's responsible for setting the underlying func's
Sym or adding it to target.Decls, or how to write new code that
constructs a closure without interfering with existing code.
This CL refactors everything to use three common functions in package
ir: NewClosureFunc (which handle creating the Func, Name, and
ClosureExpr and wiring them together), NameClosure (which generates
and assigns its unique Sym), and UseClosure (which handles adding the
Func to target.Decls).
Most IR builders can actually name the closure right away, but the
legacy noder+typecheck path may not yet know the name of the enclosing
function. In particular, for methods declared with aliased receiver
parameters, we need to wait until after typechecking top-level
declarations to know the method's true name. So they're left anonymous
until typecheck.
UseClosure does relatively little work today, but it serves as a
useful spot to check that the code setting up closures got it right.
It may also eventually serve as an optimization point for early
lifting of trivial closures, which may or may not ultimately be
beneficial.
Change-Id: I7da1e93c70d268f575b12d6aaeb2336eb910a6f1
Reviewed-on: https://go-review.googlesource.com/c/go/+/327051
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Instead of using ir.DeepCopy to copy the IR from the previous constant
declaration, just call exprList again and then fix up the position
information. This is equivalent in practice, but has cleaner semantics
for tricky corner cases like constant declarations that contain
function literals.
In particular, this refactoring is necessary for the next CL that
cleans up function literal construction, because it adds extra
consistency checks that weren't satisfied by DeepCopy'd OCLOSUREs.
Change-Id: I0372bde5d6613695ee572cc8bf8fb4ff9aef4cb4
Reviewed-on: https://go-review.googlesource.com/c/go/+/327449
Trust: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
This CL adds a simple framework for augmenting the current export data
format by writing out additional data *after* the existing data, with
an extra header before it that current readers ignore.
In particular, this is used by unified IR to be able to experiment and
iterate on export data designs without having to keep the
go/internal/gcimporter and x/tools/go/gcexportdata importers in
sync. Instead, they simply continue reading the existing data written
out by typecheck/iexport.go.
Change-Id: I883211c2892e2c7dec758b85ff6bc31b244440a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/327169
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Always enable regabig on AMD64, which enables the G register and
the X15 zero register. Remove the fallback path.
Also remove the regabig GOEXPERIMENT. On AMD64 it is always
enabled (this CL). Other architectures already have a G register,
except for 386, where there are too few registers and it is
unlikely that we will reserve one. (If we really do, we can just
add a new experiment).
Change-Id: I229cac0060f48fe58c9fdaabd38d6fa16b8a0855
Reviewed-on: https://go-review.googlesource.com/c/go/+/327272
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Now that deferred functions are always argumentless and defer
records are no longer with arguments, defer record can be fixed
size (just the _defer struct). This allows us to simplify the
allocation of defer records, specifically, remove the defer
classes and the pools of different sized defers.
Change-Id: Icc4b16afc23b38262ca9dd1f7369ad40874cf701
Reviewed-on: https://go-review.googlesource.com/c/go/+/326062
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newproc was not allowed to split stack because it had a special
stack layout, where the go'd function's arguments were passed on
stack but not included in the signature (therefore the stack map).
Now it no longer has argument, so it does not need to be nosplit.
Change-Id: I6f39730fb1595c4b0438c74118fef418fe1c082b
Reviewed-on: https://go-review.googlesource.com/c/go/+/325919
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This CL fixes reflectdata.methodWrapper to compile wrapper functions
for method expressions involving imported, instantiated interface
types. CL 322193 fixed a similar issue for generating wrappers for
imported, instantiated concrete types, but missed this case.
This is necessary to fix CL 326169's test case 10. However, that test
case is not included currently, because -G=3 mode crashes on method
expressions involving *any* instantiated interface type. Adding a test
will have to wait until either this issue is fixed in -G=3 mode, or
unified IR is merged.
Updates #46704.
Change-Id: Ib02d3c20e7c69d16288f1286cd1c98e7cbbba114
Reviewed-on: https://go-review.googlesource.com/c/go/+/327055
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Trust: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
The unified IR importer needs access to the *types2.Checker instance
to lazily construct objects and types. Eventually, maybe the
types2.Importer API can be extended to add the Checker as another
parameter (or more likely something like an ImportConfig struct), but
right now we can handle this ourselves as long as we forgo the
types2.(*Config).Check convenience wrapper.
Updates #46449.
Change-Id: I89c41d5d47c224a58841247cd236cd9f701a23a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/327053
Trust: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Unified IR currently works by hoisting local type definitions to
package scope, which requires giving them a unique name. Its current
solution is to directly embed the ·N suffix in Sym.Name, rather than
set Type.Vargen. This CL extends types/fmt.go to support trimming this
suffix again when appropriate.
Longer term, I want to revisit this hack, but this seemed like the
least invasive solution while also handling generics and local types.
Change-Id: If99fcdcc1e19e37d5887de3b021c256a3fe46b98
Reviewed-on: https://go-review.googlesource.com/c/go/+/327052
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This CL adds a variant of ir.TypeNode that allows specifying position
information. This shouldn't normally be needed/used, but it's
occasionally helpful for writing code that passes toolstash -cmp.
Change-Id: I2be5da0339fd1ec2bee01d6c5310bd2ef58c46b4
Reviewed-on: https://go-review.googlesource.com/c/go/+/327049
Trust: Matthew Dempsky <mdempsky@google.com>
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deferproc was not allowed to split stack because it had a special
stack layout, where the go'd function's arguments were passed on
stack but not included in the signature (therefore the stack map).
Now it no longer has argument, so it does not need to be nosplit.
Change-Id: I6d4b5302bd6fea6642bb4202984d86e3ebbc9054
Reviewed-on: https://go-review.googlesource.com/c/go/+/325920
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Now that defer/go wrapping is used, deferred/go'd functions are
always argumentless. Remove the code handling arguments.
This CL is mostly removing the fallback code path. There are more
cleanups to be done, in later CLs.
Change-Id: I87bfd3fb2d759fbeb6487b8125c0f6992863d6e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/325915
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Now that defer wrapping is used, deferred function is always
argumentless. Remove the code handling arguments.
This CL is mostly removing the fallback code path. There are more
cleanups to be done, in later CLs.
Change-Id: If6c729d3055c7a507cb1f1a000f5bbd3ad7ff235
Reviewed-on: https://go-review.googlesource.com/c/go/+/325914
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
markInlBody/markObject/markType don't fully work as they stand for
generic functions/methods, since markInlBody can't understand method
calls on generic types. Those method calls will be resolved to concrete
methods in a full instantiation, but markInlBody on a generic
function/method can't understand those method calls. So, we won't
necessarily cause export of the appropriate extra method/function bodies
needed for inlining in an instantiated function.
One way to do this is just to make sure that we call markType
on all generic types that are exported (whether explicitly exported via
a capitalized name or unexported types that are referenced by a generic
function body). That way, we will call markInlBody on all possible
generic methods that might be called.
Fixes the current problem for i386-softfloat builds on dev.typeparams.
Change-Id: I2d3625d26042296731bd3c44ba1938aa194d527e
Reviewed-on: https://go-review.googlesource.com/c/go/+/325329
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When converting a variable of generic type to an interface, use the
entry in the dictionary for the type field instead of using the
compile-time type (which we only have when fully stenciling).
Note: this isn't all the conversions. Conversions often get processed
in the ir.OCALL case. Those aren't handled yet.
Change-Id: I9a6a4c572e3c54a8e8efad98365184dbb94c4487
Reviewed-on: https://go-review.googlesource.com/c/go/+/325330
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
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When converting from a type param to an interface, allow it if
the type bound implements that interface.
Query: some conversions go through this path, some use another path?
The test does
var i interface{foo()int} = x
but
i := (interface{foo()int})(x)
works at tip.
Change-Id: I84d497e5228c0e1d1c9d76ffebaedce09dc45e8e
Reviewed-on: https://go-review.googlesource.com/c/go/+/325409
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The instantiated functions are created in the source package of the
generic function, so all lookups of symbols should be relative to that
package, so all symbols are consistently in the source package.
Fixes#46575
Change-Id: Iba67b2ba8014a630c5d4e032c0f2f2fbaaedce65
Reviewed-on: https://go-review.googlesource.com/c/go/+/325529
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This CL reorganizes export writing in preparation for unified IR:
1. It moves dumpexport into noder as noder.WriteExports so that it can
be extended to include unified IR's export data.
2. Adds an "extensions" flag to typecheck.WriteExports to control
whether the compiler-only extension data (e.g., function bodies and
linker symbol info) is included in the exports.
3. It moves the gc.exporter type into typecheck and renames it to
"crawler". The type originated as the implementation of
the (pre-iexport) binary exporter, but since the removal of bexport
it's been relegated to simply crawling the exported functions/bodies
graph to identify which inline bodies need to be included.
4. It changes inline.Inline_Flood into the method crawler.markInlBody.
Inline_Flood doesn't actually have anything to do with the rest of
inlining; its current name and location are just historical quirks.
Passes toolstash -cmp.
Change-Id: I6445e2de9d3ce500a3aded5a8e20b09f46d23dbc
Reviewed-on: https://go-review.googlesource.com/c/go/+/325212
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Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
This CL restructures the gcimports importer to mmap the export data
into memory as a string, and then pass that same string to both the
typecheck and types2 importers.
This is primarily motivated by preparation for unified IR; but it
should also improve performance (fewer string copies) and reduces
divergance between the two importers.
Passes toolstash -cmp.
Change-Id: I397f720693e9e6360bfcb5acb12609ab339d251f
Reviewed-on: https://go-review.googlesource.com/c/go/+/325210
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types2 correctly distinguishes variable assignment from use even
within function literals. Whatever the outcome of #3059, the test
cases in runtime/race need to be fixed to accomodate that.
Change-Id: Ibe3547f07b681ff41225caabaf050872a48c98d1
Reviewed-on: https://go-review.googlesource.com/c/go/+/325030
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An index expression followed by an opening "{" may indicate
a composite literal but only if the index expression can be
a type. Exclude cases where the index expression cannot be
a type (e.g. s[0], a[i+j], etc.).
This leads to a better error message in code that is erroneous.
Fixes#46558.
Change-Id: Ida9291ca30683c211812dfb95abe4969f44c474f
Reviewed-on: https://go-review.googlesource.com/c/go/+/325009
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
When constructing struct literals, importers need a way to specify
precisely which field to initialize without worrying about visibility
or those fields being blank. (A blank field doesn't actually need to
be initialized, but the expression needs to be evaluated still, and
with the right order-of-operations.)
This CL changes StructKeyExpr's Field field to point directly to the
corresponding types.Field, rather than merely holding a copy of its
Sym and Offset. This is akin to past changes to add
SelectorExpr.Selection.
Change-Id: I95b72b1788f73206fcebc22b456cf6b1186db6a7
Reviewed-on: https://go-review.googlesource.com/c/go/+/325031
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There's no outer function in these cases, so we won't be reading
the dictionary as a subdictionary from the outer scope's dictionary.
It will always be a compile-time constant.
Change-Id: I754b126652a6ffb62255734d53fcec29d77cfa9e
Reviewed-on: https://go-review.googlesource.com/c/go/+/324949
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Dan Scales <danscales@google.com>
Change markType to scan generic types and methods, so that inlineable
functions inside generic functions/methods will be properly marked for
export, which means inlining inside instantiated functions will work
correctly.
Also, fix handling of closures for instantiated functions. Some code
needs to be adjusted, since instantiated functions/methods are compiled
as if in the package of the source generic function/type, rather than in
the local package. When we create the closure struct, we want to make
sure that the .F field has the same package as the other fields for the
closure variables. Also, we need to disable a check in tcCompLit() when
being done for an instantiated function, since fields of the closure
struct will be from the source package, not the local package.
Re-enabled part of the orderedmapsimp test that was disabled because of
these issues.
Change-Id: Ic4dba8917da0a36b17c0bdb69d6d6edfdf14104a
Reviewed-on: https://go-review.googlesource.com/c/go/+/324331
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Reviewed-by: Keith Randall <khr@golang.org>
Previously, live.go is conditioned on not using regabidefers. Now
we have regabidefers enabled by default everywhere, and we may
remove the fallback path in the near future, test that
configuration instead.
Change-Id: Idf910aee323bdd6478bc7a2062b2052d82ce003f
Reviewed-on: https://go-review.googlesource.com/c/go/+/325111
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In CL 298669 we added defer/go wrapping, and, as it is not
allowed for closures to escape when compiling runtime, we worked
around it by rewriting go'd closures to argumentless
non-capturing closures, so it is not a real closure and so not
needed to escape.
Previous CL removes the restriction. Now we can undo the
workaround.
Updates #40724.
Change-Id: Ic7bf129da4aee7b7fdb7157414eca943a6a27264
Reviewed-on: https://go-review.googlesource.com/c/go/+/325110
Trust: Cherry Mui <cherryyz@google.com>
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When compiling runtime, we don't allow closures to escape,
because we don't want (implicit) allocations to occur when it is
not okay to allocate (e.g. in the allocator itself). However, for
go statement, it already allocates a new goroutine anyway. It is
okay to allocate the closure. Allow it.
Also include the closure's name when reporting error.
Updates #40724.
Change-Id: Id7574ed17cc27709609a059c4eaa67ba1c4436dc
Reviewed-on: https://go-review.googlesource.com/c/go/+/325109
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Deal with export/import of recursive generic types. This includes
typeparams which have bounds that reference the typeparam.
There are three main changes:
- Change export/import of typeparams to have an implicit "declaration"
(doDecl). We need to do a declaration of typeparams (via the
typeparam's package and unique name), because it may be referenced
within its bound during its own definition.
- We delay most of the processing of the Instantiate call until we
finish the creation of the top-most type (similar to the way we
delay CheckSize). This is because we can't do the full instantiation
properly until the base type is fully defined (with methods). The
functions delayDoInst() and resumeDoInst() delay and resume the
processing of the instantiations.
- To do the full needed type substitutions for type instantiations
during import, I had to separate out the type subster in stencil.go
and move it to subr.go in the typecheck package. The subster in
stencil.go now does node substitution and makes use of the type
subster to do type substitutions.
Notable other changes:
- In types/builtins.go, put the newly defined typeparam for a union type
(related to use of real/imag, etc.) in the current package, rather
than the builtin package, so exports/imports work properly.
- In types2, allowed NewTypeParam() to be called with a nil bound, and
allow setting the bound later. (Needed to import a typeparam whose
bound refers to the typeparam itself.)
- During import of typeparams in types2 (importer/import.go), we need
to keep an index of the typeparams by their package and unique name
(with id). Use a new map typParamIndex[] for that. Again, this is
needed to deal with typeparams whose bounds refer to the typeparam
itself.
- Added several new tests absdiffimp.go and orderedmapsimp.go. Some of
the orderemapsimp tests are commented out for now, because there are
some issues with closures inside instantiations (relating to unexported
names of closure structs).
- Renamed some typeparams in test value.go to make them all T (to make
typeparam uniqueness is working fine).
Change-Id: Ib47ed9471c19ee8e9fbb34e8506907dad3021e5a
Reviewed-on: https://go-review.googlesource.com/c/go/+/323029
Trust: Dan Scales <danscales@google.com>
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Incrementing type parameter subscripts for each type checking pass is
distracting for an interactive program where packages are type-checked
on each keystroke.
We should perhaps hide the type parameter ID altogether, but for now at
least add a layer of indirection so that type parameters for a single
type-checked package can be stabilized.
This change should have no effect on non-generic type checking.
For #46003
Change-Id: I60d747e0a2bfb68e7d64e897eac23f609a2a4429
Reviewed-on: https://go-review.googlesource.com/c/go/+/321269
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
This CL adds three new functions to the types2 API to support lazy
import resolution:
1. A new Scope.InsertLazy method to allow recording that Objects exist
in a particular Scope (in particular, package scopes) without having
to yet fully construct those objects. Instead, types2 will call the
provided `resolve` function if/when the object is actually needed.
2. Similarly, a new NewTypeNameLazy function to create TypeName
objects without yet instantiating their underlying Named
instance.
3. Finally, an InstantiateLazy method, that allows creating type
instances without requiring any of the types to be expanded right
away. Importantly, this requires providing a types2.Checker argument
to handle recursive types correctly.
The APIs as-is are a bit clumsy (esp. NewTypeNameLazy), but seem to
work well for cmd/compile's needs. In particular, they simplify some
of the complexities of handling recursive type definitions within the
importer.
Also, the current prototype is a bit fragile. It uses sync.Once to
manage concurrent lazy resolution, which is frustrating to debug in
the presence of reentrancy issues. It also means the importer needs to
deal with concurrency as well. These aren't issues for types2 though
as cmd/compile only walks the type-checked AST sequentially.
Finally, it looks like some of the details of lazy type names are
similar to the lazy "instance" stuff used for generics, so maybe
there's opportunity for unifying them under a more general (but still
internal) lazy type mechanism.
I had originally intended for this CL to also update the types2
importer, but (1) it doesn't have access to the types2.Checker
instance needed to call InstantiateLazy, and (2) it creates a new
TypeName/TypeParam at each use rather than reusing them, which
evidently works with types2.Instantiate but not
types2.(*Checker).instantiate (i.e., InstantiateLazy). I spent a while
trying to fix these issues, but kept running into more subtle
issues. Instead, I've included my WIP "unified IR" CL as a followup CL
that demonstrates these Lazy methods (see noder/reader2.go).
Updates #46449.
Change-Id: I4d1e8e649f6325a11790d25fd90c39fa07c8d41d
Reviewed-on: https://go-review.googlesource.com/c/go/+/323569
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
The test in abi_test.go relies on the compiler to generate
register-ABI calls using a magic name. As of CL 300150 the name
loses its magic. Guard it with regabiargs for the use of
register-ABI calls.
Change-Id: Ib8b3c24f71ea5161d607c9becfb3027ceee40ac1
Reviewed-on: https://go-review.googlesource.com/c/go/+/324767
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
This is CL 312669, for ARM64.
cgocallback calls cgocallbackg after switching the stack. Call it
indirectly to bypass the linker's nosplit check. In particular,
this avoids a nosplit stack overflow on Windows when register ABI
is enabled.
Change-Id: I7054a750fb0ec2579d46004f94b46b6f7b9e3a21
Reviewed-on: https://go-review.googlesource.com/c/go/+/324734
Trust: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
Currently, memequal_varlen opens up a frame and call memequal,
which then tail-calls memeqbody. This CL changes memequal_varlen
tail-calls memeqbody directly.
This makes it simpler to switch to the register ABI in the next
CL.
Change-Id: Ia1367c0abb7f4755fe736c404411793fb9e5c04f
Reviewed-on: https://go-review.googlesource.com/c/go/+/324399
Trust: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
duffzero and duffcopy are commonly referenced functions. Add them
to builtin list, so they are referenced by index, not by name.
Also change gcWriteBarrier to ABIInternal, which is changed in
CL 266638.
Regenerate the file.
Change-Id: If8550d9ed300ac2be930a7c58657a9cf1933ac1d
Reviewed-on: https://go-review.googlesource.com/c/go/+/324250
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Reviewed-by: Than McIntosh <thanm@google.com>
Eventually the flag should not be set anymore, but we set it in the
compiler until all tests have been converted.
Also, convert some more types2 tests to use the type set notation.
Change-Id: I616599a3473451ab75d67272016b2bd3de6835af
Reviewed-on: https://go-review.googlesource.com/c/go/+/324571
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
This CL removes the // UNREVIEWED disclaimer at the top of the
file. This file is essentially a copy of its reviewed version
at src/go/internal/gcimporter/gcimporter_test.go with adjustments
to make it work for the compiler and types2. To see the changes
made with respect to the original, compare patchset 2 against
patchset 3.
Change-Id: Iaeb9a56a6a56f4c1d93e7bfedc5b1f1968fa6792
Reviewed-on: https://go-review.googlesource.com/c/go/+/324131
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
- Eliminate the need for bottom type: This is now represented by
an empty union (denoting the set of no types).
- Clean up type set intersection and incorporate tilde information
in intersection operation and satisfaction tests.
- Minor cleanups along the way.
- Note: The intersection algorithm does not always compute the
largest possible intersection. To be addressed in a follow-up CL.
Change-Id: I7fa19df5996da36a4d8f29300d30a0aa4d8a3e5c
Reviewed-on: https://go-review.googlesource.com/c/go/+/323354
Trust: Robert Griesemer <gri@golang.org>
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Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
A constant will have a TYPEPARAM type if it appears in a place where it
must match that typeparam type (e.g. in a binary operation with a
variable of that typeparam type). If so, then we must write out its
actual constant kind as well, so its constant val can be read in
properly during import.
Fixed some export/import tests which were casting some untyped constants
to avoid this problem.
Change-Id: I285ad8f1c8febbe526769c96e6b27acbd23050f0
Reviewed-on: https://go-review.googlesource.com/c/go/+/324189
Run-TryBot: Dan Scales <danscales@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
If running "go build" outputs anything, write it to the test log even
if the test succeeds. This makes it easier to diagnose errors within
the compiler by adding print statements and finding them in the test
log, even if the compiler exits successfully.
Change-Id: Id04716c4e1dcd9220c35ea0040ea516c1dd5237c
Reviewed-on: https://go-review.googlesource.com/c/go/+/324329
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
This CL removes the // UNREVIEWED disclaimer at the top of the
file. This file is essentially a copy of its reviewed version
at src/go/internal/gcimporter/gcimporter.go with adjustments to
make it work for the compiler and types2. To see the changes
made with respect to the original, compare patchset 1 against
patchset 2.
Change-Id: I0fd635730fb6bdee8cef1b89154f4049a6581751
Reviewed-on: https://go-review.googlesource.com/c/go/+/324132
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
For toolstash -cmp compatibility with types2, we also need to sort
fields (or at least the embedded types) *before* expanding them. This
is relevant to what position information and parameter names are used
for methods when embedded interfaces have overlapping methods.
This came up in archive/zip, which has:
type fileInfoDirEntry interface {
fs.FileInfo
fs.DirEntry
}
and both of these embedded interfaces in turn have an "IsDir() bool"
method. Traditionally, cmd/compile would keep the method from
fs.FileInfo.IsDir, but with types2 it will now keep fs.DirEntry.IsDir
instead. This doesn't affect correctness at all, but it does end up in
DWARF sometimes.
Change-Id: Iac8d6321894be335466a76b5bf8a0c1b15a3581b
Reviewed-on: https://go-review.googlesource.com/c/go/+/324330
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Reviewed-by: Robert Griesemer <gri@golang.org>
This CL removes the // UNREVIEWED disclaimer at the top of the
file. This file is essentially a copy of its reviewed version
at src/go/internal/gcimporter/exportdata.go with adjustments to
make it work for the compiler and types2. To see the changes
made with respect to the original, compare patchset 1 against
patchset 2.
Change-Id: I276d898ef238afa37ec6b9605496407df36cf7d0
Reviewed-on: https://go-review.googlesource.com/c/go/+/324133
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
This CL removes the // UNREVIEWED disclaimer at the top of the
file. This file is essentially a copy of its reviewed version
at src/go/internal/gcimporter/support.go with adjustments to
make it work for the compiler and types2. To see the changes
made with respect to the original, compare patchset 1 against
patchset 2.
Change-Id: Icb8e7e7cac02751265c1020431018293826bad18
Reviewed-on: https://go-review.googlesource.com/c/go/+/324130
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
- We still mostly ignore the tilde information.
- More consistent naming: A Union term is the pair (type, tilde).
Rename Union.terms to Union.types; the Union.types and Union.tilde
slices make up the Union terms.
- Replace Sum.is with Union.underIs: underIs iterates through all
union terms and calls its argument function with the underlying
type of the term (and thus can ignore the tilde information).
This also eliminates the need to call under in the argument
function.
- Added Union.is for situations where we need to consider the tilde
information for each Union term.
Change-Id: I70fcf1813e072651dc0f61d52d5555642ee762fd
Reviewed-on: https://go-review.googlesource.com/c/go/+/323274
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
When converting from a generic function to a concrete implementation,
add a dictionary argument to the generic function (both an actual
argument at each callsite, and a formal argument of each
implementation).
The dictionary argument comes before all other arguments (including
any receiver).
The dictionary argument is checked for validity, but is otherwise unused.
Subsequent CLs will start using the dictionary for, e.g., converting a
value of generic type to interface{}.
Import/export required adding support for LINKSYMOFFSET, which is used
by the dictionary checking code.
Change-Id: I16a7a8d23c7bd6a897e0da87c69f273be9103bd7
Reviewed-on: https://go-review.googlesource.com/c/go/+/323272
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
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Reviewed-by: Dan Scales <danscales@google.com>
mcall calls a closure (using ABIInternal) with an argument.
Update it to pass the argument in register.
Panic functions tail-call Go panic functions using ABIInternal.
Update them to pass the arguments in registers.
Race functions are called using ABIInternal from compiler-
instrumented code. Update them to receive the arguments in
registers.
Now all.bash passes with GOEXPERIMENT=regabi on ARM64 (at least on
macOS).
Change-Id: I648f6502c7eeb1422330c6c829181f12e08c7d0e
Reviewed-on: https://go-review.googlesource.com/c/go/+/323937
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
For functions such as gcWriteBarrier and panicIndexXXX, the
compiler generates ABIInternal calls directly. And they must not
use wrappers because it follows a special calling convention or
the caller's PC is used. Mark them as ABIInternal.
Note that even though they are marked as ABIInternal, they don't
actually use the internal ABI, i.e. regabiargs is not honored for
now.
Now all.bash passes with GOEXPERIMENT=regabiwrappers (at least on
macOS).
Change-Id: I87e41964e6dc4efae03e8eb636ae9fa1d99285bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/323934
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
The existing code for deciding how to format defined type names is
incredibly convoluted and difficult to follow. In particular, I'm
looking at changing how Vargen works, and I couldn't tell from the
existing code whether my idea was viable.
This CL overhauls the logic to be much simpler with fewer special
cases, while overall behaving the same. A few notable intentional
differences from how the current code works:
1. The old code replaced the 'S' verb for fmtTypeGo and fmtTypeDebug
to 'v', whereas the new code leaves it alone. There's currently no
code that actually uses 'S' with these modes anyway, so it doesn't
seem important to maintain this special case. If future code wants 'v'
formatting, it should just use 'v' instead of 'S'.
2. The old code included Vargen for fmtTypeIDName mode with the 'S'
verb; but again, this functionality isn't actually used. I think it
would make sense for fmtTypeIDName to include Vargen like fmtTypeID
does (Vargen is logically part of the type's identity after all), but
that breaks tests and toolstash -cmp. So for now, this is left as a
TODO to investigate in the future.
3. The old code only added Vargen for fmtTypeID in 'v' mode when
printing types from the local package. But because we don't currently
support exporting function-scoped defined types anyway, this is again
irrelevant. In fact, once we *do* support exporting function-scoped
defined types, we'll need to include Vargen to generate the linker
symbols correctly.
Passes toolstash -cmp.
Change-Id: I4e481276bc4dc8d5b17eebf597b612737f26be5b
Reviewed-on: https://go-review.googlesource.com/c/go/+/323709
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Rather than re-parsing and re-resolving the import path string, use
the PkgName object provided by types2 to determine what package path
it refers to.
Also, decompose importfile into smaller functions, so that we can
directly pass the already-resolved package path to the importer.
Finally, switch to simply using height as calculated by types2 rather
than redoing the calculations.
Change-Id: I3338f4e68387b2835b2e58d6df65d740d6a648cb
Reviewed-on: https://go-review.googlesource.com/c/go/+/323309
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Trust: Dan Scales <danscales@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
This CL refactors mkinlcall by extracting the core InlinedCallExpr
construction code into a new "oldInline" function, and adds a new
"NewInline" hook point that can be overriden with a new inliner
implementation that only needs to worry about the details of
constructing the InlinedCallExpr.
It also moves the delayretvars optimization check into CanInline, so
it's performed just once per inlinable function rather than once for
each inlined call.
Finally, it skips printing the function body about to be inlined (and
updates the couple of regress tests that expected this output). We
already report the inline body as it was saved, and this diagnostic is
only applicable to the current inliner, which clones existing function
body instances. In the unified IR inliner, we'll directly construct
inline bodies from the serialized representation.
Change-Id: Ibdbe617da83c07665dcbda402cc8d4d4431dde2f
Reviewed-on: https://go-review.googlesource.com/c/go/+/323290
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This CL adds ir.RawOrigExpr, which can be used to represent arbitrary
constant expressions without needing to build and carry around an
entire IR representation of the original expression. It also allows
distinguishing how the constant was originally written by the
user (e.g., "0xff" vs "255").
This CL then also updates irgen to make use of this functionality for
expressions that were constant folded by types2.
Change-Id: I41e04e228e715ae2735c357b75633a2d08ee7021
Reviewed-on: https://go-review.googlesource.com/c/go/+/323210
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This CL makes a handful of changes to either bring existing compiler
output consistent with what types2 produces or to make it easier to
reproduce with types2:
1. The position for embedded fields is corrected to the position of
the syntax.Field, rather than the syntax.Type.
2. Methods and embedded types are sorted in export data the same way
that types2 sorts them.
3. Don't write out position information for OLITERALs that don't have
their own position (i.e., references to named constants).
Change-Id: Ic3979215ae9ef280cfbba7b44c236e03fc12a2ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/323209
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Trust: Matthew Dempsky <mdempsky@google.com>
Write out export data with the old export format (iexportVersionPosCol)
if not compiling with generics (-G=0, the default value). This helps
ensure we don't break tests involving x/tools/go/gcexportdata (since we
can't modify that tool yet to use the new format).
Change-Id: I5f9bce44ed1e0696fc65fead6bab9e30de88461d
Reviewed-on: https://go-review.googlesource.com/c/go/+/323189
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Trust: Robert Griesemer <gri@golang.org>
This CL makes to minor changes motivated by making it easier to make
large-scale changes to the inliner while satisfying toolstash -cmp:
1. When creating inlining variables, make sure to preserve the
AutoTemp flag. This is necessary so that temporary variables
introduced by rewriting f(g()) calls during typecheck stay autotemp
after inlining and are (correctly) omitted from DWARF debugging
information.
2. When sorting variables for stack frame layout, use a stable
sort. This ensures that layout is insensitive to whether deadcode
elimination happens before or after inlining.
Change-Id: I672e752a873c7e16749b9873fd6573607e074309
Reviewed-on: https://go-review.googlesource.com/c/go/+/323011
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Reviewed-by: Dan Scales <danscales@google.com>
We already have and use FixVariadicCall to normalize non-dotted calls
to variadic functions elsewhere in the compiler to simplify rewriting
of function calls. This CL updates inl.go to use it too.
A couple tests need to be updated to (correctly) expect diagnostics
about "... argument" instead of a slice literal. This is because
inl.go previously failed to set Implicit on the slice literal node.
Change-Id: I76bd79b95ae1f16e3b26ff7e9e1c468f538fd1f0
Reviewed-on: https://go-review.googlesource.com/c/go/+/323009
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The compiler renames anonymous and blank result parameters to ~rN or
~bN, but the current semantics for computing N are rather annoying and
difficult to reproduce cleanly. They also lead to difficult to read
escape analysis results in tests.
This CL changes N to always be calculated as the parameter's index
within the function's result parameter tuple. E.g., if a function has
a single result, it will now always be named "~r0".
The normative change to this CL is fairly simple, but it requires
updating a lot of test expectations.
Change-Id: I58a3c94de00cb822cb94efe52d115531193c993c
Reviewed-on: https://go-review.googlesource.com/c/go/+/323010
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Define the registers.
They are not really enabled for now. Otherwise the compiler will
start using them for go:registerparams functions and it is not
fully working. Some test will fail.
Now we can compile a simple Add function with registerparams
(with registers enabled).
Change-Id: Ifdfac931052c0196096a1dd8b0687b5fdedb14d5
Reviewed-on: https://go-review.googlesource.com/c/go/+/322850
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
In the scheduler we have the logic that if a Value is used as the
block's control, we schedule it at the end, except for Phis and
Args. Even the comment says so, the code doesn't exclude
in-register Args (OpArgXXXReg).
Change to check for score instead, which includes OpArgXXXRegs.
It also includes GetClosurePtr, which must be scheduled early.
We just happen to never use it as block control.
Found when working on ARM64 register ABI. In theory this could
apply to AMD64 as well. But on AMD64 we never use in-register
Value as block control, as conditional branch is always based on
FLAGS, never based on registers, so it doesn't actually cause any
problem.
Change-Id: I167a550309772639574f7468caf91bd805eb74c6
Reviewed-on: https://go-review.googlesource.com/c/go/+/322849
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: David Chase <drchase@google.com>
Always generate (*T).M wrappers for instantiated methods, even when the
instantiated method is being generated for another package (its source
package)
Added new function t.IsInstantiated() to check for fully-instantiated
types (generic type instantiated with concrete types, hence concrete
themselves). This function helps hide the representation of instantiated
types outside of the types package.
Added new export/import test setsimp.go that needs this change.
Change-Id: Ifb700db8c9494e1684c93735edb20f4709be5f7f
Reviewed-on: https://go-review.googlesource.com/c/go/+/322193
Trust: Dan Scales <danscales@google.com>
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Generic types can the source type of a type alias, so modify g.typ0() to
be able to deal with base generic types.
Added test aliasimp.go that tests aliasing of local generic types and
imported generic types.
Change-Id: I1c398193819d47a36b014cc1f9bb55107e9a565b
Reviewed-on: https://go-review.googlesource.com/c/go/+/322194
Trust: Dan Scales <danscales@google.com>
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
This CL updates noder and typecheck to avoid a couple of instances of
redundant evaluation of type expressions:
1. When noding struct fields or parameter tuples, check for
syntax.Type reuse between adjacent fields and then reuse the
corresponding ir.Node type expression. It would perhaps be even better
to avoid re-noding the type expression too, but noder's days are
numbered anyway, so I'd rather be minimally invasive here.
2. When importing an empty interface, reuse the same cached empty
interface instance that is used for empty interfaces that appear in
source. This matches types2's behavior, which uses a single
types2.Interface instance for all empty interfaces.
These changes are motivated by making it possible to migrate from
typecheck to types2 while passing toolstash -cmp.
Updates #46208.
Change-Id: Ia6458894494464d863181db356f3284630c90ffe
Reviewed-on: https://go-review.googlesource.com/c/go/+/320789
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Add union support in types1, and allow exporting of unions, and
importing unions back into types1 and types2.
Added new test mincheck.go/mincheck.dir that tests that type lists (type
sets) are correctly exported/imported, so that types2 gives correct
errors that an instantiation doesn't fit the type list in the type param
constraint.
Change-Id: I8041c6c79289c870a95ed5a1b10e4c1c16985b12
Reviewed-on: https://go-review.googlesource.com/c/go/+/322609
Trust: Dan Scales <danscales@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
In a late change to golang.org/cl/320609, while going back and forth
on the meaning of the boolean result value for "checkFlags", I got one
of the cases wrong. As a result, rather than testing both default
flags and -G=3, we were (redundanly) testing default flags and -G=0.
I ran into this because in my local dev tree, I'm using types2 even
for -G=0, and evidently one of the recent types2 CLs changed the error
message in fixedbugs/issue10975.go. Fortunately, there haven't been
any other regressions despite lacking test coverage.
So this CL cleans things up a bit:
1. Fixes that test to use -lang=go1.17, so types2 reports the old
error message again.
2. Renames "checkFlags" to "validForGLevel" so the boolean result is
harder to get wrong.
3. Removes the blanket deny list of all -m tests, and instead adds the
specific tests that are still failing. This effectively extends -G=3
coverage to another 27 tests that were using -m but already passing,
so we can make sure they don't regress again.
4. Adds a -f flag to force running tests even if they're in the deny
list, to make it easier to test whether they're still failing without
having to edit run.go.
Change-Id: I058d9d90d81a92189e54c6f591d95fb617fede53
Reviewed-on: https://go-review.googlesource.com/c/go/+/322612
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Merge List:
+ 2021-05-25 f22ec51deb doc: add Go 1.17 release note about inlining functions with closures
+ 2021-05-25 8b462d7567 cmd/go: add a -compat flag to 'go mod tidy'
+ 2021-05-24 c89f1224a5 net: verify results from Lookup* are valid domain names
+ 2021-05-24 08a8fa9c47 misc/wasm: ensure correct stack pointer in catch clauses
+ 2021-05-24 32b73ae180 cmd/go: align checks of module path during initialization.
+ 2021-05-24 15d9d4a009 cmd/go: add tests illustrating what happens when Go 1.16 is used in a Go 1.17 main module
+ 2021-05-24 873401df5b cmd/compile: ensure equal functions don't do unaligned loads
+ 2021-05-24 b83610699a cmd/compile: record regabi status in DW_AT_producer
+ 2021-05-24 a22e317220 cmd/compile: always include underlying type for map types
+ 2021-05-24 4356e7e85f runtime: account for spill slots in Windows callback compilation
+ 2021-05-24 52d7033ff6 cmd/go/internal/modload: set the default GoVersion in a single location
+ 2021-05-24 05819bc104 cmd/go/internal/modcmd: factor out a type for flags whose arguments are Go versions
+ 2021-05-22 cca23a7373 cmd/compile: revert CL/316890
+ 2021-05-21 f87194cbd7 doc/go1.17: document changes to net/http package
+ 2021-05-21 217f5dd496 doc: document additional atomic.Value methods
+ 2021-05-21 3c656445f1 cmd/go: in TestScript/mod_replace, download an explicit module path
+ 2021-05-21 76b2d6afed os: document that StartProcess puts files into blocking mode
+ 2021-05-21 e4d7525c3e cmd/dist: display first class port status in json output
+ 2021-05-21 4fb10b2118 cmd/go: in 'go mod download' without args, don't save module zip sums
+ 2021-05-21 4fda54ce3f doc/go1.17: document database/sql changes for Go 1.17
+ 2021-05-21 8876b9bd6a doc/go1.17: document io/fs changes for Go 1.17
+ 2021-05-21 5fee772c87 doc/go1.17: document archive/zip changes for Go 1.17
+ 2021-05-21 3148694f60 cmd/go: remove warning from module deprecation notice printing
+ 2021-05-21 7e63c8b765 runtime: wait for Go runtime to initialize in Windows signal test
+ 2021-05-21 831573cd21 io/fs: added an example for io/fs.WalkDir
+ 2021-05-20 baa934d26d cmd: go get golang.org/x/tools/analysis@49064d23 && go mod vendor
+ 2021-05-20 7c692cc7ea doc/go1.17: document changes to os package
+ 2021-05-20 ce9a3b79d5 crypto/x509: add new FreeBSD 12.2+ trusted certificate folder
+ 2021-05-20 f8be906d74 test: re-enable test on riscv64 now that it supports external linking
+ 2021-05-20 def5360541 doc/go1.17: add release notes for OpenBSD ports
+ 2021-05-20 ef1f52cc38 doc/go1.17: add release note for windows/arm64 port
+ 2021-05-20 bb7495a46d doc/go1.17: document new math constants
+ 2021-05-20 f07e4dae3c syscall: document NewCallback and NewCallbackCDecl limitations
+ 2021-05-20 a8d85918b6 misc/cgo/testplugin: skip TestIssue25756pie on darwin/arm64 builder
+ 2021-05-19 6c1c055d1e cmd/internal/moddeps: use filepath.SkipDir only on directories
+ 2021-05-19 658b5e66ec net: return nil UDPAddr from ReadFromUDP
+ 2021-05-19 15a374d5c1 test: check portable error message on issue46234.go
+ 2021-05-18 eeadce2d87 go/build/constraint: fix parsing of "// +build" (with no args)
+ 2021-05-18 6d2ef2ef2a cmd/compile: don't emit inltree for closure within body of inlined func
+ 2021-05-18 048cb4ceee crypto/x509: remove duplicate import
Change-Id: Ib0442e3555493805f2aa1df26dfd6898df989a37
This is a simple move of a block of inlined code into a function
to make instantiation more manageable and easier to understand.
There is no change in functionality or behavior.
Change-Id: I46e7a9ea03527731e1f0219b3402eb03949627c5
Reviewed-on: https://go-review.googlesource.com/c/go/+/322070
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Accept embedded interface elements of the form ~T or A|B and
treat them like type lists: for now the elements of a union
cannot be interfaces. Also, translate existing style "type"-
lists in interfaces into interface elements: "type a, b, c"
becomes a union element "~a|~b|~c" which in turn is handled
internally like a type list.
For now, "~" is still ignored and type lists are mapped to
Sum types as before, thus ensuring that all existing tests
work as before (with some minor adjustments).
Introduced a new Union type to represent union elements.
For now they don't make it past interface completion where
they are represented as a Sum type. Thus, except for printing
(and the respective tests) and substitution for interfaces,
the various type switches ignore Union types. In a next step,
we'll replace Sum types with union types and then consider
the ~ functionality as well.
Because union elements are no different from embedded interfaces
we don't need a separate Interface.types field anymore. Removed.
For #45346.
Change-Id: I98ac3286aea9d706e98aee80241d4712ed99af08
Reviewed-on: https://go-review.googlesource.com/c/go/+/321689
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
We have a value typecheck(3) that indicates that a node in a generic
function still needs transformation (via the functions in transform.go).
But it is not very desirable to export/import the value of typecheck(3).
So, I changed the stenciling code to just try to transform all relevant
node types during node copy. Almost all tranform functions were already
idempotent. I only had to add an extra if check before calling
transformAssign() in the OAS case. We still use the typecheck(3) in
noder to determine when higher-nodes have to delay transformation
because one or more of their args are delaying transformation.
Added new test mapsimp.go that required these tranformations after import.
As an additional change, export/import of OINDEX requires exporting the
type using w.exoticType() rather than w.typ(), in order to handle
generic functions. Since generic functions can have pre-transform
operations, the index operation can have a tuple type (multiple return
from a map lookup).
Added printing of imported function bodies in -W=3 debug mode.
Change-Id: I220e2428dc5f2741e91db146f075eb5b6045f451
Reviewed-on: https://go-review.googlesource.com/c/go/+/322191
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
The name substitution for stenciling was incorrectly handling non-local
names. Made changes to explicitly built the vars[] name substitution map
based on the local variables (similar to what inlining substitution
does). Then, we we are stenciling a name node, we do NOT make a copy of
the name node if it is not in vars[], since it is then a reference to an
external name. Added new function localvar() to create the new nodes for
the local variables and put them in the vars[] map.
New test listimp2.go, added missing test calls in list2.go
Change-Id: I8946478250c7bf2bd31c3247089bd50cfeeda0fd
Reviewed-on: https://go-review.googlesource.com/c/go/+/322190
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
For register ABI, we wrap deferred/go'd function with arguments
or results in an argumentless closure, so the runtime can call the
function without knowing how to marshal the arguments, or
reserving frame for arguments and results.
The wrapping mechanism works everywhere, regardless of whether the
register ABI is used. And wrapping will simplify the compiler and
runtime's implementation for defer and go calls. For example, the
compiler will not need to marshal arguments for defer/go calls,
the opendefer metadata will not need to contain argument
information, and _defer record will be fixed-sized.
Enable wrapping everywhere.
Change-Id: I2032ba87249ceb686310dc640fb00696669ae912
Reviewed-on: https://go-review.googlesource.com/c/go/+/321958
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
makeFuncStub and methodValueCall on AMD64 are marked as
ABIInternal, so Go code can get their (unwrapped) addresses
(using open-coded funcPC). Ues internal/abi.FuncPCABI0 instead,
and un-mark the functions.
Change-Id: Id28b6101ec7e55bc5a357d4236482cec70cd7e5d
Reviewed-on: https://go-review.googlesource.com/c/go/+/322350
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
The ABI is similar to the AMD64 ABI, just uses different
registers and stack layout. The stack layout is compatible with
the current stack-based ABI0.
To be implemented in Go 1.18.
Change-Id: If9c5e664574947f959d3427e3bed769e05d2d673
Reviewed-on: https://go-review.googlesource.com/c/go/+/319829
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
We want to keep the Nname references for external function references in
tstruct (not remove them, as is currently happening). We only change the
Nname reference (translate it) when it appears in subst.vars[].
New export/import test sliceimp.go which includes some of these external
function references.
Change-Id: Ie3d73bd989a16082f0cebfb566e0a7faeda55e60
Reviewed-on: https://go-review.googlesource.com/c/go/+/321735
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Improvements:
- Fix export/import of the default case of a select statement (was not
dealing with nil Comm case)
- Set properly the name of closure functions in imported generic
functions
Added new test exporting/importing a reasonably large channel package,
chansimp.go.
Change-Id: If2ee12bd749e5df415f48ec4b629a2fa68a79dcb
Reviewed-on: https://go-review.googlesource.com/c/go/+/321734
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
funcPC expects a func value. There are places where we pass an
unsafe.Pointer, which is technically undefined.
In proc.go it is actually representing a func value, so the
expression does the right thing. Cast to a func value so it is
clearer.
In os_freebsd.go it is a raw function pointer. Using funcPC on a
raw function pointer is incorrect. Just use it directly instead.
Change-Id: I3c5d61cea08f0abf5737834b520f9f1b583c1d34
Reviewed-on: https://go-review.googlesource.com/c/go/+/321953
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Use FuncPCABI0 to reference ABI0 assembly symbols. Currently,
they are referenced using funcPC, which will get the ABI wrapper's
address. They don't seem to affect correctness (either the wrapper
is harmless, or, on non-AMD64 architectures, not enabled). They
should have been converted.
This CL does not yet completely eliminate funcPC. But at this
point we should be able to replace all remaining uses of funcPC
to internal/abi.FuncPCABIInternal.
Change-Id: I383a686e11d570f757f185fe46769a42c856ab77
Reviewed-on: https://go-review.googlesource.com/c/go/+/321952
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
There are a few assembly functions in the runtime that are marked
as ABIInternal, solely because funcPC can get the right address.
The functions themselves do not actually follow ABIInternal (or
irrelevant). Now we have internal/abi.FuncPCABI0, use that, and
un-mark the functions.
Also un-mark assembly functions that are only called in assembly.
For them, it only matters if the caller and callee are consistent.
Change-Id: I240e126ac13cb362f61ff8482057ee9f53c24097
Reviewed-on: https://go-review.googlesource.com/c/go/+/321950
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
At runtime startup it calls newproc from assembly code to start
the main goroutine. runtime.main has no arguments, so the arg
size should be 0, instead of 8.
While here, use clearer code sequence to open the frame.
Change-Id: I2bbb26a83521ea867897530b86a85b22a3c8be9d
Reviewed-on: https://go-review.googlesource.com/c/go/+/321957
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
For generic functions, we have to leave the builtins in OCALL form,
rather than transform to specific ops, since we don't know the exact
types involved. Allow export/import of builtins in OCALL form.
Added new export/import test mapimp.go.
Change-Id: I571f8eeaa13b4f69389dbdb9afb6cc61924b9bf2
Reviewed-on: https://go-review.googlesource.com/c/go/+/321750
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
I added constants for the previous export versions, and for the final
generics export version. I also added a const for the current export
version. We can increment the current export version for unstable
changes in dev.typeparams, and eventally set it back to the generics
version (2) before release. Added the same constants in
typecheck/iexport.go, importer/iimport.go, and gcimporter/iimport.go,
must be kept in sync.
Put in the needed conditionals to be able to read old versions.
Added new export/import test listimp.dir.
Change-Id: I166d17d943e07951aa752562e952b067704aeeca
Reviewed-on: https://go-review.googlesource.com/c/go/+/319931
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
The general idea is that we now export/import typeparams, typeparam
lists for generic types and functions, and instantiated types
(instantiations of generic types with either new typeparams or concrete
types).
This changes the export format -- the next CL in the stack adds the
export versions and checks for it in the appropriate places.
We always export/import generic function bodies, using the same code
that we use for exporting/importing the bodies of inlineable functions.
To avoid complicated scoping, we consider all type params as unique and
give them unique names for types1. We therefore include the types2 ids
(subscripts) in the export format and re-create on import. We always
access the same unique types1 typeParam type for the same typeparam
name.
We create fully-instantiated generic types and functions in the original
source package. We do an extra NeedRuntimeType() call to make sure that
the correct DWARF information is written out. We call SetDupOK(true) for
the functions/methods to have the linker automatically drop duplicate
instantiations.
Other miscellaneous details:
- Export/import of typeparam bounds works for methods (but not
typelists) for now, but will change with the typeset changes.
- Added a new types.Instantiate function roughly analogous to the
types2.Instantiate function recently added.
- Always access methods info from the original/base generic type, since
the methods of an instantiated type are not filled in (in types2 or
types1).
- New field OrigSym in types.Type to keep track of base generic type
that instantiated type was based on. We use the generic type's symbol
(OrigSym) as the link, rather than a Type pointer, since we haven't
always created the base type yet when we want to set the link (during
types2 to types1 conversion).
- Added types2.AsTypeParam(), (*types2.TypeParam).SetId()
- New test minimp.dir, which tests use of generic function Min across
packages. Another test stringimp.dir, which also exports a generic
function Stringify across packages, where the type param has a bound
(Stringer) as well. New test pairimp.dir, which tests use of generic
type Pair (with no methods) across packages.
- New test valimp.dir, which tests use of generic type (with methods
and related functions) across packages.
- Modified several other tests (adder.go, settable.go, smallest.go,
stringable.go, struct.go, sum.go) to export their generic
functions/types to show that generic functions/types can be exported
successfully (but this doesn't test import).
Change-Id: Ie61ce9d54a46d368ddc7a76c41399378963bb57f
Reviewed-on: https://go-review.googlesource.com/c/go/+/319930
Trust: Dan Scales <danscales@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Change all instantiated methods to being functions again. We found that
this is easier for adding the dictionary argument consistently. A method
wrapper will usually be added around the instantiation call, so that
eliminate the inconsistency in the type of the top-level method and the
the associated function node type.
Change-Id: I9034a0c5cc901e7a89e60756bff574c1346adbc7
Reviewed-on: https://go-review.googlesource.com/c/go/+/321609
Run-TryBot: Dan Scales <danscales@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Dan Scales <danscales@google.com>
Register ABI is already enabled by default on AMD64 on Linux
(including Android), macOS, and Windows. This CL enables it on the
rest, specifically, on FreeBSD, OpenBSD, NetBSD, DragonflyBSD,
Solaris (including Illumos), iOS (simulator), and Plan 9.
Change-Id: I80fa20c8bbc8d67b16a19f71b65422e890210ab5
Reviewed-on: https://go-review.googlesource.com/c/go/+/321332
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
This CL extends types2 with package height information, styled after
the way it works already in cmd/compile:
- A new NewPackageHeight entry point for constructing packages with
explicit height information, and a corresponding Height accessor
method.
- The types2 importer is updated to provide package height for
imported packages.
- The types2 type checker sets height based on imported packages.
- Adds an assertion to irgen to verify that types1 and types2
calculated the same height for the source package.
- Func.less's ordering incorporates package height to match
types.Sym.less and is generalized to object.less.
- sortTypes (used for sorting embedded types) now sorts defined types
using object.less as well.
Change-Id: Id4dbbb627aef405cc7438d611cbdd5a5bd97fc96
Reviewed-on: https://go-review.googlesource.com/c/go/+/321231
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
When declaring anonymous parameters, use the syntax.Field's Pos
directly rather than its Type field's Pos. When the type expression is
a qualified identifier (i.e., SelectorExpr), its Pos returns the
position of the dot, whereas we typically declare the anonymous
parameter at the starting position of the type. (We could equivalently
use syntax.StartPos(field.Type), but we already have this as
field.Pos().)
Change-Id: If6ac9635b6e9c2b75a1989d5893a78e0b21cba88
Reviewed-on: https://go-review.googlesource.com/c/go/+/320611
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Currently the exporter uses types.IsDotAlias(n.Sym()) to recognize
that n is a type alias, but IsDotAlias is actually meant for
recognizing aliases introduced by dot imports. Translated to go/types,
the current logic amounts recognizing type aliases as if by:
var n *types.TypeName
typ, ok := n.Pkg().Scope().Lookup(n.Name()).Type().(*types.Named)
isAlias := !ok || typ.Obj().Pkg() != n.Pkg() || typ.Obj().Name() != n.Name()
But we can instead just check n.Alias() (eqv. n.IsAlias() in
go/types). In addition to being much simpler, this is also actually
correct for recognizing function-scoped type declarations (though we
don't currently support those anyway, nor would they go through this
exact code path).
To avoid possible future misuse of IsDotAlias, this CL also inlines
its trivial definition into its only call site.
Passes toolstash -cmp, also w/ -gcflags=all=-G=3.
Change-Id: I7c6283f4b58d5311aa683f8229bbf62f8bab2ff9
Reviewed-on: https://go-review.googlesource.com/c/go/+/320613
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Dan Scales <danscales@google.com>
This CL expands the current logic for re-running "errorcheck" tests
with -G=3 to run (almost) all regress tests that way. This exposes a
handful of additional failures, so the excluded-files list is expanded
accordingly. (The next CL addresses several of the easy test cases.)
Change-Id: Ia5ce399f225d83e817a046a3bd1a41b9681be3af
Reviewed-on: https://go-review.googlesource.com/c/go/+/320609
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
Merge List:
+ 2021-05-18 690a8c3fb1 make.bash: fix misuse of continue
+ 2021-05-18 8b0901fd32 doc/go1.17: fix typo "avoding" -> "avoiding"
+ 2021-05-18 5e191f8f48 time: rewrite the documentation for layout strings
+ 2021-05-17 bfe3573d58 go/token: correct the interval notation used in some panic messages
+ 2021-05-17 a2c07a9a1a all: update golang.org/x/net to latest
+ 2021-05-17 b9b2bed893 syscall: some containers may fail syscall.TestSetuidEtc
+ 2021-05-17 b1aff42900 cmd/go: don't print 'go get' deprecation notices in the main module
+ 2021-05-17 bade680867 runtime/cgo: fix crosscall2 on ppc64x
+ 2021-05-15 ce92a2023c cmd/go: error out of 'go mod tidy' if the go version is newer than supported
+ 2021-05-14 02699f810a runtime: mark osyield nosplit on OpenBSD
+ 2021-05-14 3d324f127d net/http: prevent infinite wait during TestMissingStatusNoPanic
+ 2021-05-14 0eb38f2b16 cmd/go/internal/load: override Package.Root in module mode
+ 2021-05-14 a938e52986 cmd/go: fix a portability issue in the cd script command
+ 2021-05-14 d137b74539 cmd/go: fix spacing in help text of -overlay flag
+ 2021-05-14 c925e1546e cmd/internal/obj/arm64: disable AL and NV for some condition operation instructions
+ 2021-05-14 12d383c7c7 debug/macho: fix a typo in macho.go
+ 2021-05-14 3a0453514a all: fix spelling
+ 2021-05-13 b4833f7c06 cmd/link: always mark runtime.unreachableMethod symbol
+ 2021-05-13 92c189f211 cmd/link: resolve ABI alias for runtime.unreachableMethod
+ 2021-05-13 7a7624a3fa cmd/go: permit .tbd files as a linker flag
+ 2021-05-13 cde2d857fe cmd/go: be less strict about go version syntax in dependency go.mod files
+ 2021-05-13 2a61b3c590 regexp: fix repeat of preferred empty match
+ 2021-05-13 fd4631e24f cmd/compile/internal/dwarfgen: fix DWARF param DIE ordering
+ 2021-05-13 a63cded5e4 debug/dwarf: delay array type fixup to handle type cycles
+ 2021-05-13 0fa2302ee5 cmd/vendor: update golang.org/x/sys to latest
+ 2021-05-13 2c76a6f7f8 all: add //go:build lines to assembly files
+ 2021-05-12 6db7480f59 cmd/go/internal/modload: in updateLazyRoots, do not require the main module explicitly
+ 2021-05-12 f93b951f33 cmd/compile/abi-internal.md: fix table format
+ 2021-05-12 3b321a9d12 cmd/compile: add arch-specific inlining for runtime.memmove
+ 2021-05-12 07ff596404 runtime/internal/atomic: add LSE atomics instructions to arm64
+ 2021-05-12 03886707f9 runtime: fix handling of SPWRITE functions in traceback
+ 2021-05-12 e03383a2e2 cmd/link: check mmap error
+ 2021-05-12 af0f8c149e cmd/link: don't cast end address to int32
+ 2021-05-12 485474d204 cmd/go/testdata/script: fix test failing on nocgo builders
+ 2021-05-12 1a0ea1a08b runtime: fix typo in proc.go
+ 2021-05-11 9995c6b50a cmd/go: ignore implicit imports when the -find flag is set
Change-Id: I843fe029b8ac09424a83e8a4e8bdcc86edd40603
The /* incomplete */ comment printed for interfaces that have not been
"completed" yet is not useful for end-users; it's here for type-checker
debugging. Rather than trying to pass through a debug flag through all
print routines (which may require new exported API), simply don't print
the comment unless we have the debug flag set inside the type-checker.
For #46167.
Change-Id: Ibd22edfe63001dfd2b814eeb94c2d54d35afd88c
Reviewed-on: https://go-review.googlesource.com/c/go/+/320150
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Especially with typesets, we should be able to fully represent a
typeparam bound as just another type (actually an interface type).
Change the representation of a typeparam in types1 to include a bound,
which is just a type. Changed the signature for NewTypeParam() to take a
sym, and not a package, since we always set the sym (name) of the
typeparam when creating it. No need for an extra pkg field in Typeparam.
Also added index field in the types1 representation of typeparam. This
is especially needed to correctly export the typeparam, and re-import it
as a types2 type (which requires the index to be set correctly).
Change-Id: I50200e2489a97898c37d292b2bd025df790b0277
Reviewed-on: https://go-review.googlesource.com/c/go/+/319929
Reviewed-by: Robert Griesemer <gri@golang.org>
Trust: Robert Griesemer <gri@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Previously, we were converting an instantitated method to a function, by
moving the receiver arg to the regular args, etc. But that made the type
of the method signature inconsistent with the signature on the method
fields, which leads to some problems with more complex programs with
instantiations. And things work fine if we leave the instantiated method
as a method. So, make the change to keep instantiated methods as real
methods (until they are transformed much later in the compiler).
Change-Id: If34be9e88c1b0ff819d557cf8dfbb31196542e7c
Reviewed-on: https://go-review.googlesource.com/c/go/+/319490
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
We were handling the case where an OFUNCINST node was used as a function
value, but not the case when an OFUNCINST node was used as a method
value. In the case of a method value, we need to create a new selector
expression that references the newly stenciled method.
To make this work, also needed small fix to noder2 code to properly set the
Sel of a method SelectorExpr (should be just the base method name, not
the full method name including the type string). This has to be correct,
so that the function created by MethodValueWrapper() can be typechecked
successfully.
Fixes#45817
Change-Id: I7343e8a0d35fc46b44dfe4d45b77997ba6c8733e
Reviewed-on: https://go-review.googlesource.com/c/go/+/319589
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Merge List:
+ 2021-05-11 9b84814f6e net/http: check that Unicode-aware functions are not used
+ 2021-05-11 2520e72d3b runtime: hold sched.lock across atomic pidleget/pidleput
+ 2021-05-11 326a792517 runtime,syscall: simplify openbsd related build tags
+ 2021-05-10 5c489514bc net/http: switch HTTP1 to ASCII equivalents of string functions
+ 2021-05-10 dc50683bf7 crypto/elliptic: upgrade from generic curve impl to specific if available
+ 2021-05-10 73d5aef4d1 cmd/internal/objfile: add objabi.SNOPTRDATA to "D"
+ 2021-05-10 d9e068d289 runtime/cgo,cmd/internal/obj/ppc64: fix signals with cgo
+ 2021-05-10 deb3403ff5 go/build: include files with parse errors in GoFiles and other lists
+ 2021-05-10 82517acae8 net, runtime: drop macOS 10.12 skip conditions in tests
+ 2021-05-10 031854117f cmd/go: include packages with InvalidGoFiles when filtering main packages
+ 2021-05-10 a9edda3788 cmd/go: add a test that reproduces #45827
+ 2021-05-10 e18a8b4fb2 go/build: avoid duplicates in InvalidGoFiles
+ 2021-05-10 287025925f cmd/compile,reflect: allow longer type names
+ 2021-05-09 c14ecaca81 runtime: skip TestCrashDumpsAllThreads on openbsd/arm
+ 2021-05-09 bedf2c4886 runtime,syscall: convert syscall on openbsd/arm to libc
+ 2021-05-09 603f43cbae runtime: switch runtime to libc for openbsd/arm
+ 2021-05-09 83df4a590b runtime: switch openbsd/arm locking to libc
+ 2021-05-09 8ec8f6aa87 runtime: switch openbsd/arm to pthreads
+ 2021-05-09 5203357eba cmd/compile: make non-concurrent compiles deterministic again
+ 2021-05-09 ea93e68858 crypto/elliptic: make P-521 scalar multiplication constant time
+ 2021-05-09 14c3d2aa59 crypto/elliptic: import fiat-crypto P-521 field implementation
+ 2021-05-09 ec4efa4208 crypto/x509: check the private key passed to CreateCertificate
+ 2021-05-08 b38b1b2f9a cmd/compile: manage Slot array better
+ 2021-05-08 68327e1aa1 cmd/vendor: upgrade pprof to latest
+ 2021-05-08 4c8f48ed4f syscall: do not change stdio handle inheritance
+ 2021-05-08 9d0819b27c crypto/tls: make cipher suite preference ordering automatic
+ 2021-05-08 02ce411821 crypto/x509: remove GODEBUG=x509ignoreCN=0 flag
+ 2021-05-08 b211fe0058 cmd/compile: remove bit operations that modify memory directly
+ 2021-05-07 f24eac4771 cmd/compile: improving the documentation of various fields and functions
+ 2021-05-07 3980c4db19 doc/go1.17: fill in TODO for compress/lzw package
+ 2021-05-07 d80d1427a8 doc/go1.17: fill in TODO for reflect package
+ 2021-05-07 af6123a865 doc/go1.17: document encoding/binary.Uvarint max read of 10 bytes
+ 2021-05-07 b44c78b8c3 doc/go1.17: fill in TODO for strconv package
+ 2021-05-07 9bfa6f75d5 cmd/internal/obj: consolidate MOVB cases with other MOV ops on ppc64
+ 2021-05-07 a0eb662d85 doc/go1.17: move language specification TODO to the right place
+ 2021-05-07 bdb8044665 cmd/link: don't include arginfo symbols in symbol table
+ 2021-05-07 f5423ea615 cmd/compile/internal/types2: add test case for issue 45985
+ 2021-05-07 832c70e33d internal/poll: cast off the last reference of SplicePipe in test
+ 2021-05-07 d2b03111c4 go/types,cmd/compile/internal/types2: unskip std and cmd in TestStdlib
+ 2021-05-07 9524e93adf go/types: add a test case for issue 45985
+ 2021-05-07 a11a1711b0 go/types: expose types.Info.Inferred with -tags=typeparams
+ 2021-05-06 4dbad79510 runtime: call unlockOSThread directly in Windows syscall functions
+ 2021-05-06 f39997b2be cmd/link: split large text sections on Darwin/ARM64 when external linking
+ 2021-05-06 90d6bbbe42 crypto/tls: enforce ALPN overlap when negotiated on both sides
+ 2021-05-06 402f177efc cmd/compile: fix intrinsic setting for mul64, add64 on ppc64le
+ 2021-05-06 51ff3a6965 crypto/x509: rewrite certificate parser
+ 2021-05-06 5f9fe47dea CONTRIBUTORS: change my name
+ 2021-05-06 6c591f79b0 math/big: check for excessive exponents in Rat.SetString
+ 2021-05-06 54e20b505d doc/go1.17: document fixes for negative rune handling
+ 2021-05-06 d2fd503f68 text/template: fix type bug in eq
+ 2021-05-06 0e7a7a68cd text/template/parse: rename DeferFuncCheck to SkipFuncCheck
+ 2021-05-06 ba0f8ce50f runtime: gofmt proc_test.go
+ 2021-05-06 b4ca1cec69 cmd/compile: set unsayable "names" for regabi testing triggers
+ 2021-05-06 1108cbe60b crypto/ecdsa,crypto/elliptic: improve tests and benchmarks
+ 2021-05-06 43c390a1fa crypto/ed25519: skip allocations test on -noopt builder
+ 2021-05-05 cf73f1a8e4 go/parser: don't parse a nil IndexExpr.Index
+ 2021-05-05 15557af207 doc/go1.17: fill in Go 1.17 release note TODOs using relnote
+ 2021-05-05 b0c49ae9f5 crypto/ed25519: replace internal/edwards25519 with filippo.io/edwards25519
+ 2021-05-05 543e098320 go/types: fix potential bugs in santitizer pass
+ 2021-05-05 40d5e6d4e2 cmd/compile/internal/types2: fix potential bugs in santitizer pass
+ 2021-05-05 784ef4c531 net/http: ignore directory path when parsing multipart forms
+ 2021-05-05 95dde3f029 cmd/compile: do not substitute OGOTO inside a closure when inlining
+ 2021-05-05 d0583b131a cmd/go: spot-check the explicit requirements of root module dependencies when loading packages from them
+ 2021-05-05 18e666bad7 cmd/go: skip TestExecInDeletedDir on aix and solaris-based platforms
+ 2021-05-05 69368cece5 cmd/compile/internal/types2: make TestManual work for directories
+ 2021-05-05 3b304ce7fe runtime: implement runqdrain() for GC mark worker goroutines
+ 2021-05-05 f34fe8e370 all: update vendored dependencies for Go 1.17
+ 2021-05-05 4c9791299d runtime: remove redundant save_g call in mcall for arm
+ 2021-05-05 9e0facd26e cmd/compile/internal/types2: implement types2.Instantiate
+ 2021-05-05 caf4c9434b cmd/compile: debug trace output for -N variable location gen
+ 2021-05-05 66ce8aa88d cmd/compile: handle degenerate entry blocks in -N debug gen
+ 2021-05-05 4df662fb37 cmd/go: don't crash when running "go version" in deleted directory
+ 2021-05-05 bb5e45219a cmd/go.sum: remove untidy checksums
+ 2021-05-04 137be7712f embed/internal/embedtest: add test for embedded path starting with dash
+ 2021-05-04 cb0658e624 go/types: expose more API under -tags=typeparams
+ 2021-05-04 62a87f64b9 cmd/go/internal/modload: only check root-promotion during tidy for lazy modules
+ 2021-05-04 6a6aa32783 cmd/go: add a test that reproduces the internal error in #45952
+ 2021-05-04 cd28ca3a4e runtime: abort when receiving a signal on a non-Go thread on Windows
+ 2021-05-04 d19e5493bd doc/go1.17: require macOS 10.13 or later
+ 2021-05-04 10a082aa70 cmd/go: update x/mod to fix "//indirect" comment editing
+ 2021-05-04 f62739b861 cmd/compile: establish regabi name/value mapping for small in-params
+ 2021-05-04 8c3d217d89 os: skip TestExecutableDeleted on plan9
+ 2021-05-04 e15d1f4e64 internal/buildcfg: set Error instead of panicking
+ 2021-05-04 da7496d841 os/signal: increase test timeouts on ppc64*/linux
+ 2021-05-04 d83baa1aa2 cmd/dist,cmd/go: set GOTRACEBACK to "system" for testing
+ 2021-05-04 10d625d5b4 database/sql: add NullInt16 and NullByte
+ 2021-05-04 371ea545c0 net/url: avoid string concatenation in resolvePath
+ 2021-05-04 62d424d794 cmd: update x/tools to pull in CL 315570
+ 2021-05-04 eab0c46af7 cmd/go/internal/modload: remove outdated comments and redundant tests
+ 2021-05-04 0816511d3b all: update x/crypto to pull in CL 316109
+ 2021-05-04 8e38b80b64 cmd: update x/text to pull in CL 315571
+ 2021-05-04 1bbe78bb6d cmd: update x/mod to pull in CL 316113
+ 2021-05-04 86e42c2fbf cmd/go: suppress SSH password prompts when fetching modules or repos
+ 2021-05-04 5e4f9b077f cmd/compile: when compiling with -N, avoid entry block
+ 2021-05-04 0921211403 cmd/compile: preserve/translate names for parameters
+ 2021-05-04 830e63a7a3 syscall: add //go:build lines to assembly files
+ 2021-05-04 45600bcd61 os, syscall: use wait6 to avoid wait/kill race on netbsd
+ 2021-05-04 138d2c9b88 strconv: fix a typo
+ 2021-05-04 e3769299cd strconv: add QuotedPrefix
+ 2021-05-04 2422c5eae5 sync/atomic: add (*Value).Swap and (*Value).CompareAndSwap
+ 2021-05-04 496d7c6914 text/template: add lock for Template.tmpl to fix data race
+ 2021-05-03 731a015ab8 internal/syscall/unix: use internal/abi.FuncPC for syscall wrapper
+ 2021-05-03 e8eb1d8269 math: add MaxUint, MinInt, MaxInt
+ 2021-05-03 ed5ebd32b3 os: update some docs to reference fs.ErrFoo instead of os.ErrFoo
+ 2021-05-03 ddb648fdf6 archive/zip: add File.OpenRaw, Writer.CreateRaw, Writer.Copy
+ 2021-05-03 9f347035ef cmd/api: disallow silent API additions after api/go1.n.txt is created
+ 2021-05-03 791854700d all: update x/net to pull in CL 316129
+ 2021-05-03 a144af9136 cmd: update x/term to pull in CL 316112
+ 2021-05-03 8a4b7294af cmd/compile: fix possible nil deref added in CL 270943
+ 2021-05-03 7f9febd4a1 cmd/compile: fix linux-amd64-noopt builder
+ 2021-05-03 90ec257735 cmd/compile: make the stack allocator more careful about register args.
+ 2021-05-03 b584230889 net/http: use relative path in Location redirect
+ 2021-05-03 169155d61e cmd/compile: preserve argument order in debug_info
+ 2021-05-03 472f519fe2 cmd/compile/internal/ssagen: fix misleading comment
+ 2021-05-03 d75fbac54d cmd/compile: add edge from lock rank edge from forceGC to traceStackTab
+ 2021-05-03 7b768d43d0 math: replace float32/64 extrema with exact expressions
+ 2021-05-03 be1da9cdee cmd/link: unify text segment write
+ 2021-05-03 8327d2150f cmd/compile: add traceback argument info to ABI0 assembly functions
+ 2021-05-03 844e1fc6f1 cmd/compile: make typecheckaste correctly report invalid use of "..."
+ 2021-05-03 9ed736ac2a cmd/link/internal: fix use of DynlinkingGo with ppc64le trampolines
+ 2021-05-03 30674ae91b cmd/dist: disable misc/cgo/testsanitizers on ppc64le
+ 2021-05-03 2c9f5a1da8 cmd: update x/arch to pull in CL 315572
+ 2021-05-02 abb110bf3d os/user: implement (*User).GroupIds on solaris
+ 2021-05-02 b177b2d51e os, syscall: use wait6 to avoid wait/kill race on dragonfly
+ 2021-05-02 7eb2d30883 syscall: add //go:build lines to files generated with with mksyscall_libc.pl
+ 2021-05-02 bb09f8a29b time: make time.Time print a valid Go string with %#v
+ 2021-05-02 fadad851a3 cmd/compile: implement unsafe.Add and unsafe.Slice
+ 2021-05-02 0d32d9e8a8 os: document that Windows Symlink to missing target creates file symlink
+ 2021-05-02 352a322a83 path/filepath: fix documentation typo (was "each each")
+ 2021-05-01 053fe2f485 cmd/link: emit better error for duplicated definition
+ 2021-05-01 d7473fd907 cmd/link: mangle ABI name for shared linkage
+ 2021-05-01 879db69ce2 go/types: list errors by default in TestManual
+ 2021-05-01 a9db5a7386 go/types: simplify use of TestManual
+ 2021-05-01 ffc38d8ab4 go/types: slice-to-array-pointer conversion requires go1.17
+ 2021-04-30 8e91458b19 runtime,syscall: convert syscall on openbsd/386 to libc
+ 2021-04-30 faff49aae6 runtime: switch runtime to libc for openbsd/386
+ 2021-04-30 0bbfc5c31e runtime: break up large calls to memclrNoHeapPointers to allow preemption
+ 2021-04-30 41afd3af42 cmd/compile: fix abbrev selection for output params
+ 2021-04-30 d19eece91f cmd/compile: handle field padding for register-passed structs
+ 2021-04-30 162d4f9c92 cmd/compile: regabi support for DWARF location expressions
+ 2021-04-30 93200b98c7 bufio: mention ErrFinalToken in SplitFunc documentation
+ 2021-04-30 c23a32284a runtime: work around vet asmdecl checks for openbsd/386 mstart_stub
+ 2021-04-30 afa58ddf5a cmd/compile: revise block/func end sentinels in debug analysis
+ 2021-04-30 83ac59b1a5 cmd/internal/archive: make error message contain printable characters only
+ 2021-04-30 c3b2b04156 runtime: switch openbsd/386 locking to libc
+ 2021-04-30 4893eee9dc runtime: switch openbsd/386 to pthreads
+ 2021-04-30 d9bfda8124 cmd/go: remove the special case for "unsafe" in importFromModules
+ 2021-04-30 cbff713e68 cmd/go: add GODEBUG tokens for debugging lazy module loading
+ 2021-04-30 eb71887b99 cmd/go: prune go.mod and go.sum files from vendored dependencies
+ 2021-04-30 c3365ad5f2 cmd/go: annotate versions in vendor/modules.txt
+ 2021-04-30 7dedc237c5 cmd/go: smooth out upgrade paths for lazy loading
+ 2021-04-30 0e315ad79a cmd/go/internal/modload: avoid loading the full module graph when listing specific modules
+ 2021-04-30 c05d50f8f3 cmd/go/internal/modload: avoid loading the module graph to list only the name of the main module
+ 2021-04-30 ee4f9656ac cmd/go/internal/modload: avoid loading the full module graph to determine which checksums to add to go.sum
+ 2021-04-30 4063605e0d cmd/go/internal/modload: avoid loading the full module graph for imports satisfied by lazy roots
+ 2021-04-30 8d8abb3b8a cmd/go: verify lazy-loading invariants when loading the vendor list for a lazy module
+ 2021-04-30 9a81702b97 cmd/go: enable lazy loading
+ 2021-04-30 2bd3e48055 cmd/go/internal/modload: implement lazy loading
+ 2021-04-30 9c12f1b433 internal/buildcfg: enable regabi for Android
+ 2021-04-30 95c5f4da80 cmd/compile/internal/types2: list errors by default in TestManual
+ 2021-04-30 c55d5c887e cmd/compile/internal/types2: simplify use of TestManual
+ 2021-04-30 89bf297b24 cmd/internal/objfile: emit better error for Go object of a different version
+ 2021-04-30 a893682d83 net/url: add Values.Has
+ 2021-04-30 3366556d1c A+C: add Weixie Cui (individual CLA)
+ 2021-04-30 cc02d59e84 cmd/gofmt: always format non-directory arguments again
+ 2021-04-30 0dfb6fb490 go/ast: print CommentMap contents in source order
+ 2021-04-30 06ac303f6a cmd/internal/obj/ppc64: simplify got/toc address classification
+ 2021-04-30 9c7207891c cmd/internal/obj/arm64: fix the size of STP series instructions in optab
+ 2021-04-30 303b194c6d api: update next.txt
+ 2021-04-30 3498027329 math: increase precision of math.SmallestNonzeroFloat64
+ 2021-04-30 02ab8d1a1d cmd/compile, runtime: emit only GC data for stack objects
+ 2021-04-29 a9705e157b cmd/compile/internal/types2: slice-to-array-pointer conversion requires go1.17
+ 2021-04-29 e99dfb0e5c cmd/compile: make GC prog symbol content-addressable
+ 2021-04-29 1df309eb02 cmd/compile: skip types.Sym for GC mask symbols
+ 2021-04-29 897baae953 runtime/metrics: add additional allocation metrics
+ 2021-04-29 fd09593667 cmd/compile: minor doc enhancements
+ 2021-04-29 7b32830f58 crypto/elliptic: store P-256 precomputed basepoint table in source
+ 2021-04-29 87e4dcd446 archive/zip: only return directory once via io/fs.FS
+ 2021-04-29 6d95e5a4ff encoding/csv: add FieldPos method
+ 2021-04-29 2c05ba4ae0 runtime: top align tinyallocs in race mode
+ 2021-04-29 32dbaac572 cmd/compile/internal/walk: merge operations when calling ir.NewSlic…
+ 2021-04-29 e03cca6407 runtime: use 4 MiB heap arenas on iOS
+ 2021-04-29 5a8435d701 go/types: add additional test data from types2
+ 2021-04-29 f7c6f6210b cmd/link: test trampolines with cgo
+ 2021-04-29 948a262455 cmd/compile/internal/types2: nest all test data under the testdata directory
+ 2021-04-29 12eaefead4 cmd/link: support trampoline insertion for PLT calls on ARM
+ 2021-04-29 657f58d845 cmd/link: support trampoline insertion for PLT calls on ARM64
+ 2021-04-29 f12dfeac89 cmd/link: support trampoline insertion on ARM64
+ 2021-04-29 b15372f39b runtime: remove linux-amd64 walltime function
+ 2021-04-29 862ddb37b4 runtime: rename walltime1 to walltime
+ 2021-04-29 4e3e6b58f7 cmd/compile/internal/ir: fix doc
+ 2021-04-29 18852e8372 cmd/link: use a two-pass approach for trampoline insertion
+ 2021-04-29 d80da19fc9 cmd/link: update comment for PLT/GOT helper functions
+ 2021-04-29 eb3fe28d70 go/types: improve error messages for unexpected ListExprs
+ 2021-04-29 c8a92d454c go/types: ensure that error code values do not change in 1.17
+ 2021-04-29 47cb0c46b2 go/types: nest all test data under the testdata directory
+ 2021-04-29 c4c68fb57f cmd/compile/internal/walk: delete unused statement
+ 2021-04-29 6afa0ae4e5 cmd/compile/internal/types2: match compiler error for invalid type alias decl
+ 2021-04-29 42953bc9f5 runtime: remove walltime function
+ 2021-04-29 d09947522d runtime: implement time.now in assembly for linux-amd64
+ 2021-04-29 756fd56bbf cmd/compile: remove an unused function
+ 2021-04-28 fa6ed6e81a go/types: respect IgnoreFuncBodies for function literals
+ 2021-04-28 6082c05d8b go/types: better errors for invalid short var decls
+ 2021-04-28 414af503d7 go/types: fix type inference
+ 2021-04-28 c96fec9036 runtime: use a single definition of time_now for faketime
+ 2021-04-28 b36596b14f runtime: move Windows time.now implementations into separate files
+ 2021-04-28 07e006dd93 go/types: use a global atomic counter for type parameter ids
+ 2021-04-28 168dd4e6aa go/types: add example test for type inference
+ 2021-04-28 1e235cd454 go/types: use combined type and ordinary args for type inference
+ 2021-04-28 ad989c7dba crypto/cipher: make AES-GCM benchmarks match ChaCha20Poly1305 ones
+ 2021-04-28 764f53eb6c spec: clarify conditions for switch expression type
+ 2021-04-28 42812a2fee types2: disambiguate package qualifiers in error messages
+ 2021-04-28 ea65a12f89 cmd/compile/internal/types2: catch unexpected expression lists
+ 2021-04-28 90614ff462 cmd/go/internal/modfetch: fix comment that mentions no-longer returned error
+ 2021-04-28 a54762586f cmd/gofmt: simplify arg handling
+ 2021-04-28 22a56b629d cmd/go/internal/modload: in importFromModules, do not wrap module graph errors in ImportMissingError
+ 2021-04-28 f893f35d9f go/types: split out function instantiation from index expr
+ 2021-04-28 5b328c4a2f cmd/compile: use desired register only if it satisfies register mask
+ 2021-04-28 cbb3f09047 testing: add -shuffle=off|on|N to alter the execution order of tests and benchmarks
+ 2021-04-28 e51246c881 runtime: consolidate Windows time constants into single copy
+ 2021-04-28 92c9f3a9b8 cmd/go: include C/C++/Fortran compiler version in build ID
+ 2021-04-28 becb9a278f test: do not run fuse test in noopt mode
+ 2021-04-28 24ea547a21 cmd/link: don't pass -Wl,--dynamic-linker if -static
+ 2021-04-28 12af403624 cmd/go/internal/bug: use envcmd instead of go env
+ 2021-04-28 5c69cb2a5b cmd/go: populate module info even if an error occurs in loading package
+ 2021-04-28 11052d77a3 cmd/link: use R12 as trampoline scratch register on ARM
+ 2021-04-28 4a7effa418 cmd/compile: mark R12 clobbered for special calls
+ 2021-04-28 4fe324dd0f cmd/go: make TOOLEXEC_IMPORTPATH consistent with 'go list -f {{.ImportPath}}'
+ 2021-04-28 f68878f0fc cmd/dist,runtime: support cgo on openbsd/mips64
+ 2021-04-28 92d1afe989 cmd/compile/ssa: optimize the derivable known branch of If block
+ 2021-04-28 9726c78539 cmd/asm: add check for register and shift/extension combination on arm64
+ 2021-04-28 f439a76253 cmd/internal/obj/arm64: fix the wrong error message of out-of-range checking
+ 2021-04-28 c9f43507c6 cmd/compile: fix typechecking logical operators panic with non-boolean operand
+ 2021-04-27 983dea90c1 cmd/link: disable plugin support if cgo is disabled
+ 2021-04-27 214c8dd80c go/types: factor out index/slice expr handling
+ 2021-04-27 645cb62ee3 testing: document that TestMain can be used with benchmarks
+ 2021-04-27 30002e6656 cmd/go/internal/modload: treat \ as a path separator instead of a shell special character
+ 2021-04-27 b9dfaf77f5 cmd/compile/internal/walk: merge operations
+ 2021-04-27 13e87cda00 time: increase slop for TestTicker
+ 2021-04-27 f432d3fc41 cmd/compile: fix nongeneric closures in generic functions
+ 2021-04-27 8ab7064e33 cmd/go: use a real Go version in the go.mod files in TestScript/mod_readonly
+ 2021-04-27 0c3557e6ad syscall: move TestForegroundSignal create call out of goroutine
+ 2021-04-27 291eb0178f go: various minor cleanups with the help of Goland
+ 2021-04-27 0ae9c3b98b runtime/pprof: fix block profile bias
+ 2021-04-27 8e0023b81b cmd/go/internal/load: treat packages with errors as potentially main packages
+ 2021-04-27 bd2175e1b1 cmd/go: show warnings about symlinks only for patterns containing ...
+ 2021-04-27 222101549a syscall: restore nosplit for ptrace1 on Darwin
+ 2021-04-27 cde6a675bc go/scanner: optimize scanIdentifier
+ 2021-04-27 074a49bfe8 strconv: remove unused extfloat (Grisu3) ftoa code
+ 2021-04-27 55c517a8b3 cmd/compile: fix handling of ir.CurFunc during stenciling
+ 2021-04-27 d553c0144d bits: use same expression with system bit size
+ 2021-04-27 bc6288794d go/scanner: improve variety in benchmarks for file scanning
+ 2021-04-27 6fa12172d9 go/parser: add benchmarks for syntax-only parsing and object resolution
+ 2021-04-27 88a8a27056 os: don't check non-nil err twice in Symlink on windows
+ 2021-04-27 0b9ca4d907 runtime/metrics: add tiny allocs metric
+ 2021-04-27 7d22c2181b syscall: restore signal mask after setting foreground process group
+ 2021-04-27 39844971fb go/types: don't panic when checking a ListExpr in exprInternal
+ 2021-04-27 6edd573218 cmd/link: enforce larger alignment on split ppc64 text sections
+ 2021-04-27 1eca6aa747 cmd/internal/obj: refactor ppc64 address relocation code generation
+ 2021-04-27 e0815d041c runtime: replace --buildmode with -buildmode in tests
+ 2021-04-27 ca8e8317be runtime: add missing import "C" in TestLibraryCtrlHandler
+ 2021-04-27 cb34026a95 cmd/compile: tighten exportWriter.qualifiedIdent signature
+ 2021-04-27 c249491572 doc: change <a/> to </a> in spec
+ 2021-04-27 7ef0237d89 cmd/go/internal/modload: clean up error reporting
+ 2021-04-27 3cc3a16029 cmd/go: add tests for convergence in 'go mod tidy'
+ 2021-04-27 434e12f772 cmd/compile: add more doc for Name.Defn
+ 2021-04-27 15105dd4b5 go/types: walk all imports when determining package name ambiguity
+ 2021-04-27 40254ec0db cmd/compile: fix wrong package path for unsafe.Pointer
+ 2021-04-26 903b25178e syscall: on linux use accept4 in Accept, fall back to accept
+ 2021-04-26 be28caf0aa cmd/compile/internal/types2: respect IgnoreFuncBodies for function literals
+ 2021-04-26 9f601690da cmd/compile: workaround inlining of closures with type switches
+ 2021-04-26 a53dc4c1ce cmd/go/internal/modload: use (*loadPkg).mod only to indicate the module from which the package was loaded
+ 2021-04-26 0d1280c685 Revert "sync: improve sync.Pool object stealing"
+ 2021-04-26 c430313992 runtime: use abi.FuncPCABI0 for libc syscall wrappers
+ 2021-04-26 8ff1da0b81 runtime: fix offset in comment
+ 2021-04-26 14ade57ab8 runtime: fix scavenge min fraction constant floor division
+ 2021-04-26 d02026414c cmd/go: don't add generated SWIG C++ files to CompiledGoFiles
+ 2021-04-26 d5d24dbe41 sync: improve sync.Pool object stealing
+ 2021-04-26 1f7ddf57d2 syscall, etc.: use abi.FuncPCABI0 for libc syscall wrappers
+ 2021-04-26 00d42ffc89 cmd/compile: spos handling fixes to improve prolog debuggability
+ 2021-04-24 70deaa33eb cmd/compile: extend GOSSAFUNC match to well-formed package suffix match.
+ 2021-04-23 e7db792fc5 runtime: simplify TestSelectStackAdjust
+ 2021-04-23 b8fed48a9a cmd/dist: enable cgo on windows/arm64
+ 2021-04-23 a6d3dc40c4 misc/cgo/testso, misc/cgo/testsovar: fix for Windows
+ 2021-04-23 9cc3469106 all: do not test internal linking on windows/arm64
+ 2021-04-23 8e368708c5 cmd/link: implement windows/arm64 external linking
+ 2021-04-23 bf9216055b runtime/testdata: fix testprogcgo for windows/arm64
+ 2021-04-23 a25d1d45d9 runtime: fix windows/arm64 callbackasm1 for frame pointer hack
+ 2021-04-23 16330817aa runtime: add windows/arm64 cgo-linking code
+ 2021-04-23 e5a6c5243c cmd/link: force external link for windows/arm64 cgo binaries
+ 2021-04-23 79f35130cd cmd/link: expand PE constants and fix doc URL
+ 2021-04-23 a0248a99a8 cmd/link: fix PE emitRelocations for >4GB base address
+ 2021-04-23 59ceb985c7 cmd/link: make Loader.SymName not crash
+ 2021-04-23 199575a119 cmd/link: count relocations better
+ 2021-04-23 41e5ae4883 cmd/link: deal with no constructors
+ 2021-04-23 9f7079c44e cmd/link: sort the pclntab relocations
+ 2021-04-23 c0e1301b8c cmd/link: fix PE section attributes for windows/arm64
+ 2021-04-23 073f913949 debug/dwarf: skip over zero-length compilation units
+ 2021-04-23 cef3a442ea cmd/asm, cmd/link: use full objabi header
+ 2021-04-23 19470dc535 misc/cgo/test: do not redeclare exported Go functions
+ 2021-04-23 1421516973 cmd/compile, internal/abi: add FuncPCABIxxx intrinsics
+ 2021-04-23 691e1b84c1 cmd/compile: generalize fix for lvalue-init evaluation
+ 2021-04-23 768a39975d cmd/go/internal/modload: remove the addedModuleFor map
+ 2021-04-23 c3e2ed711c cmd/go: use builtin version and reexec for env
+ 2021-04-23 d2f96f2f75 math/rand: make the security warning clearer and more prominent
+ 2021-04-23 8c66669764 cmd/compile: make sure ascompatee walk lhs init statements
+ 2021-04-23 d4bfe00615 cmd/go: make build cache tag sensitive to GOSSADIR; remove unused
+ 2021-04-23 bedfeed54a runtime,runtime/metrics: add metric to track scheduling latencies
+ 2021-04-23 105a6e9518 os: skip TestExecutableDeleted on aix
+ 2021-04-23 5963f0a332 cmd/vendor: get golang.org/x/tools@f946a157eef
+ 2021-04-23 d310b2a6b8 cmd/compile: set correct Defn for inlined vars
+ 2021-04-23 1b0a031680 cmd/compile: escape "go" wrapper closure everywhere
+ 2021-04-23 cfac62a1cc cmd/compile: fix bug in defer wrapping
+ 2021-04-23 14056d0d00 cmd/compile/internal/types2: add unsafe.Add and unsafe.Slice
+ 2021-04-23 050b408dcc go/types: implement unsafe.Add and unsafe.Slice
+ 2021-04-22 1da05eb0ce spec: add unsafe.Add and unsafe.Slice
+ 2021-04-22 74059685fd go/types: suppress index-out-of-bounds error on Unknown constants
+ 2021-04-22 f7afdfd483 go/types: cleanup and fix Checker.index
+ 2021-04-22 cfe5d79c5c os: depend on Readlink only when necessary
+ 2021-04-22 ecfce58965 runtime: skip work recheck for non-spinning Ms
+ 2021-04-22 b6ff3c69d5 cmd/link: support more load commands on Mach-O
+ 2021-04-22 1a5665533b cmd/go/internal/modload: migrate editBuildList to use a structured requirement graph
+ 2021-04-22 9c1b769d5f cmd/go: add a source file in the multiple-paths module in TestScript/mod_tidy_replace
+ 2021-04-22 537cde0b4b cmd/compile, runtime: add metadata for argument printing in traceback
+ 2021-04-22 d4aa72002e cmd/asm: fix RLDCR const1,reg,const2,reg on ppc64
+ 2021-04-22 e8666abd98 cmd/compile: keep call's args in elim dead auto pass
+ 2021-04-22 d3853fb4e6 runtime: call cgocallbackg indirectly
+ 2021-04-22 d5b2d809b0 cmd/link: emit LC_BUILD_VERSION on Mach-O
+ 2021-04-22 b2a032add8 cmd/link: update machoPlatform selection
+ 2021-04-22 a4f3ff2205 cmd/go: update TestScript/mod_convert
+ 2021-04-22 14a18b7d25 cmd/compile/internal/types2: move a handful of tests
+ 2021-04-22 a71528ad31 cmd/compile/internal/types2: review fixedbugs tests
+ 2021-04-22 ece5935364 cmd/compile/internal/types2: better errors for invalid short var decls
+ 2021-04-22 48b368b01f cmd/compile/internal/types2: avoid follow-on errors for invalid [...] array
+ 2021-04-22 617a83ec68 go/types: re-enable a commented out test
+ 2021-04-22 f0a8101d34 go/types: combine two loops (cleanup of TODO)
+ 2021-04-22 5daefc5363 cmd/internal/obj/arm64: fix the wrong ROR operator of some instructions
+ 2021-04-22 0636d88f6d cmd/compile: add restrictions on the shift amount range of arm64 various instructions
+ 2021-04-22 02a8e83661 runtime: don't run TestCrashDumpsAllThreads in parallel
+ 2021-04-21 7bedd47798 go/types: combine all type inference in a single function
+ 2021-04-21 6639bb894d runtime: call nanotimeQPC from nanotime1 normally
+ 2021-04-21 7e97e4e8cc syscall: syscall.AllThreadsSyscall signal handling fixes
+ 2021-04-21 54af9fd9e6 internal/bytealg: add power9 version of bytes index
+ 2021-04-21 122fca49f9 go/types: simplify Checker.Call
+ 2021-04-21 1d2101116f net: don't check nil err twice in interfaceMessages on freebsd
+ 2021-04-21 614a9c2613 go/types: simplify Checker.funcInst
+ 2021-04-21 39785912b9 go/types: add sizeof test
+ 2021-04-21 255056395e test: add a field tracking test
+ 2021-04-21 35806efda2 io/fs: document that caller can modify slice returned by ReadFile
+ 2021-04-21 b8a359d984 cmd/compile/internal/types2: fix incorrect result type of Checker.index
+ 2021-04-21 f9e2dbbfc9 syscall: use libc in Exec on openbsd/arm64
+ 2021-04-21 e5bc4f2a77 cmd/compile: reenable name preservation on copies in expand_calls
+ 2021-04-21 daee726a0b cmd/compile: don't accumulate duplicated named slots
+ 2021-04-21 4d56576ec0 runtime: move timer recheck after GC recheck
+ 2021-04-21 381252f312 cmd/go/internal/modload: use updateRequirements instead of editRequirements to add modules for missing packages
+ 2021-04-21 5f1df260a9 cmd/compile: allow export/import OSLICE2ARRPTR
+ 2021-04-21 7735ec96c1 cmd/compile: remove ir.OSTMTEXPR op
+ 2021-04-21 acf1b46de5 cmd/compile: update ir.Node ops comments
+ 2021-04-21 f53c2fac46 cmd/go/internal/modload: in newRequirements, verify that rootModules is sorted
+ 2021-04-21 69c94ad55f cmd/go/internal/modload: split updateRoots into separate functions for updating and tidying
+ 2021-04-21 81fcb18df5 cmd/go: make Tidy an option in PackageOpts rather than a separate call
+ 2021-04-21 c33ced6d8a runtime: don't test sig.inuse in sigsend
+ 2021-04-21 190cb937f7 cmd/compile/internal/types2: fix type inference
+ 2021-04-21 760d3b2a16 reflect: allow conversion from slice to array ptr
+ 2021-04-21 c18744377a go/types: allow conversion from slice to array ptr
+ 2021-04-21 faa4fa1a6e cmd/compile: allow conversion from slice to array ptr
+ 2021-04-20 1c268431f4 spec: allow conversion from slice to array ptr
+ 2021-04-20 e12b0afa54 cmd/compile: separate out parameter and field export encoding
+ 2021-04-20 48e3d92454 Revert "runtime: implement runqdrain() for GC mark worker goroutines"
+ 2021-04-20 c7d708e42e cmd/compile: pass struct field note information along in exported info
+ 2021-04-20 f448cb8ba8 cmd/compile: use f.Nname.Type() in makeABIWrapper
+ 2021-04-20 57b0d838ed net: pass MSG_CMSG_CLOEXEC in ReadMsgUnix on dragonfly, netbsd and openbsd
+ 2021-04-20 3f8e64878a internal/poll, net: fix comments regarding accept and sysSocket
+ 2021-04-20 dbade774c3 runtime: refactor findrunnable spinning recheck
+ 2021-04-20 7473a6a0eb reflect: fix stack overflow panic when using haveIdenticalUnderlyingType
+ 2021-04-20 fbb600b283 runtime: implement runqdrain() for GC mark worker goroutines
+ 2021-04-20 77860ad280 cmd/compile: guard partially live arg spilling with number of registers
+ 2021-04-20 109d7580a5 cmd/compile: disable name preservation on copies in expand_calls
+ 2021-04-20 60ab197bc2 runtime: refactor work stealing to dedicated function
+ 2021-04-20 9dd71ba913 internal/buildcfg: enable regabiargs by default
+ 2021-04-20 24875e3880 cmd/compile/internal/types2: fix some typos in rawLookupFieldOrMethod
+ 2021-04-20 4ce49b4a15 go/types: support type parameters in NewMethodSet
+ 2021-04-20 af8a176e91 internal/buildcfg: enable regabidefer by default
+ 2021-04-20 3ff6ff7f84 cmd/compile: preserve pointerness when creating map key temp
+ 2021-04-20 fe26dfadc3 net: use syscall.fcntl on libc systems
+ 2021-04-20 0ccdcb2102 runtime: crash the GC when clobberdead pointer is seen
+ 2021-04-20 4f5aec4603 all: remove redundant spaces before . and ,
+ 2021-04-20 9f87943424 go/types: fix panic when using multiple type arguments
+ 2021-04-19 3711ea0b5d cmd/compile: do not clobber arguments for reflect.callReflect and callMethod's ABI wrappers
+ 2021-04-19 b3a5640397 go/types: remove the concept of finals
+ 2021-04-19 62cad233a6 go/types: remove stale commented-out testdata
+ 2021-04-19 7252e1e5b6 cmd/link: convert -I foo to -Wl,--dynamic-linker,foo when externally linking
+ 2021-04-19 88655480f3 internal/buildcfg: enable regabireflect by default
+ 2021-04-19 bc5de81e70 testing: remove data races so that parallel benchmarks can safely call .Fatal* and .Skip*
+ 2021-04-19 e97d8eb027 net: pass MSG_CMSG_CLOEXEC flag in ReadMsgUnix
+ 2021-04-19 bbb510ccc9 internal/buildcfg: enable regabig by default
+ 2021-04-19 f8892147bd runtime: open up space for callee's arg spill slot in mcall (regabi version)
+ 2021-04-19 5780ab4f60 text/template/parse: add a mode to skip func-check on parsing
+ 2021-04-19 6b8e3e2d06 cmd/compile: reduce redundant register moves for regabi calls
+ 2021-04-19 b21e739f87 test: add test for CL 310589
+ 2021-04-19 a9c244a849 test: add liveness test for regabi
+ 2021-04-19 a72622d028 cmd/compile: skip "_" function in reflectdata.MarkUsedIfaceMethod
+ 2021-04-19 c914e6160d cmd/go: drop GOEXPERIMENT in script tests
+ 2021-04-18 4efd581383 archive/zip: fix imports block of biggestZipBytes generator
+ 2021-04-17 fd3612e433 internal/buildcfg: enable regabiwrappers by default
+ 2021-04-16 43466399cb internal/buildcfg: make regabi enable regabiargs
+ 2021-04-16 067bad2eef runtime: update stale comment
+ 2021-04-16 14dbd6e776 internal/buildcfg: make regabi an alias for regabi sub-experiments
+ 2021-04-16 94817890c2 runtime: remove useless nFlushCacheRoots
+ 2021-04-16 b05903a9f6 cmd/link: fix defaultGOROOT package
+ 2021-04-16 b65f8589e8 cmd/dist: defend self against misc/reboot test
+ 2021-04-16 02a2ff47ef go/parser: add a SkipObjectResolution mode to bypass object resolution
+ 2021-04-16 b91f8a4c0b go/scanner: fix a typo in scanner_test.go
+ 2021-04-16 9e8a312b71 go/parser: move type params in scope for the function signature
+ 2021-04-16 13368ab56a runtime: clarify which work needs spinning coordination
+ 2021-04-16 800fb11efb runtime: remove redudant tryWakeP component
+ 2021-04-16 f6e7fe2711 runtime: move findrunnable timer delay computation closer to use
+ 2021-04-16 9fbcba6664 cmd/compile: in clobberdead mode, don't clobber slots that are live for defers
+ 2021-04-16 4fb74e0555 reflect: preserve ctxt across moveMakeFuncArgPtrs
+ 2021-04-16 b6e1c33603 cmd/compile: spill all the parameters around morestack
+ 2021-04-16 fff236e659 net/http/fcgi: eliminate race, keep request id until end of stdin
+ 2021-04-16 ef57834360 crypto/tls: fix flaky handshake cancellation tests
+ 2021-04-16 dba89283ad cmd/go, go/build: add ToolTags to build.Default
+ 2021-04-16 95ed5c3800 internal/buildcfg: move build configuration out of cmd/internal/objabi
+ 2021-04-16 2fc0ebb623 cmd/go/internal/modload: when outside a module, set cfg.BuildMod based on allowMissingModuleImports
+ 2021-04-16 c1e8a9a8c6 net/http/cgi: Remove hard-coded ServeHTTP timeout
+ 2021-04-16 492eb059f9 cmd/go: fix mod_install_pkg_version
+ 2021-04-16 60abe01321 cmd/link: fix file-local checks in xcoff
+ 2021-04-16 acb189ea59 net/http: make ReadRequest return an error when requests have multiple Host headers
+ 2021-04-16 2f0e5bf907 net/http: using errors.Is in fs error detection
+ 2021-04-16 abbb82957d cmd/compile: don't insert VarDef for already-initialized results
+ 2021-04-16 04e1176fd2 cmd/go: support 'go run cmd@version'
+ 2021-04-16 639cb1b629 runtime: mark stdcallN functions cgo_unsafe_args
+ 2021-04-16 0613c748e8 cmd/go: move 'go install cmd@version' code into internal/load
+ 2021-04-16 dc76c47565 cmd/go/internal/load: convert two global flags to an options struct
+ 2021-04-16 cde92846e2 doc: add release note for module deprecation
+ 2021-04-16 52df9291aa test/abi: reenable test on windows
+ 2021-04-16 c692f752b5 cmd/link/internal/ld: re-enable tests on darwin
+ 2021-04-16 e1f4feb3d6 cmd/link/internal/ld: fix GOARCH in TestAbstractOriginSanityIssue25459
+ 2021-04-16 d26fc68aa1 cmd/internal/objabi,test: use correct GOEXPERIMENT build tags in test/run.go
+ 2021-04-16 cf2396c70e internal/goexperiment: move baseline configuration to objabi
+ 2021-04-16 f08c552dab net/http: add to deadlines only when positive
+ 2021-04-16 bdddfd10ec runtime: improve synchronization in TestFinalizerRegisterABI
+ 2021-04-15 c8fb0ec5a0 cmd/compile: fix ANDI/SRWI merge on ppc64
+ 2021-04-15 699a7c0fe9 cmd/go/internal/modconv: involve GOPROXY in ConvertLegacyConfig
+ 2021-04-15 7ed6d1f2fb cmd/compile/internal/types2: add sizeof test
+ 2021-04-15 a63ff398d5 cmd/compile/internal/syntax: fix error message for ... without type
+ 2021-04-15 ddd8d7c0a6 cmd/internal/obj: consolidate AMOVW and AMOVWZ optab entries
+ 2021-04-15 8009a81f7a bytes: add asm implementation for index on ppc64x
+ 2021-04-15 5631c4b3bf net/http: allow multiple dials in TestTransportMaxConnsPerHost
+ 2021-04-15 1d20a362d0 math: avoid assembly stubs
+ 2021-04-15 31e12b953a cmd/link: issue error if elf header overruns
+ 2021-04-15 7ad496b6f5 runtime: unify C->Go ABI transitions
+ 2021-04-15 dba2eab826 runtime,runtime/cgo: save all necessary registers on entry to Go on Windows
+ 2021-04-15 3e0b1cdb5d runtime: minor refactoring of _rt0_amd64_lib
+ 2021-04-15 b1c4cc5589 mime: keep builtinTypesLower sorted alphabetically
+ 2021-04-15 61a08fc6ce strconv: Implement Ryū algorithm for ftoa shortest mode
+ 2021-04-15 0184b445c0 strconv: implement Ryū-like algorithm for fixed precision ftoa
+ 2021-04-15 8f4c5068e0 internal/bytealg: port more performance-critical functions to ABIInternal
+ 2021-04-15 48b7432e3f cmd/internal/obj/arm64: fix the wrong sp dst register of ADDS/SUBS instructions
+ 2021-04-15 566a87c16b time: add missing "os" import to zoneinfo_test.go
+ 2021-04-15 083a26c7d2 cmd/compile: propagate pragmas from generic function to stenciled implementation
+ 2021-04-15 bf634c76b2 cmd/compile: look for function in instantiations in all global assignments
+ 2021-04-14 567a9322ad mime: add mime type for avif image file format
+ 2021-04-14 d27bb8ba2e go/build: replace os.Setenv with T.Setenv
+ 2021-04-14 f18715c18f time: replace os.Setenv with T.Setenv
+ 2021-04-14 c3931ab1b7 net/http/httptest: panic on non-3 digit (XXX) status code in Recorder.WriteHeader
+ 2021-04-14 cbf9caaf22 cmd/go: add a Go source file in TestScript/mod_sumdb
+ 2021-04-14 23f8c203f0 cmd/compile: rework/reduce partially lived argument spilling
+ 2021-04-14 1a8f0a7961 runtime: fix data race in abi finalizer test
+ 2021-04-14 a89ace106f runtime: update debug call protocol for register ABI
+ 2021-04-14 de7a87ef06 go/internal/gccgoimporter: replace os.MkdirTemp with T.TempDir
+ 2021-04-14 d1f8104b58 time: move slim test tzdata to testdata directory
+ 2021-04-14 b161b57c3f go/build: replace os.MkdirTemp with T.TempDir
+ 2021-04-14 892cad7a9b cmd/compile/internal/types2: add Named.SetTParams and Named.Orig methods
+ 2021-04-14 283f9fdbd3 cmd/dist: add tests using the typeparams build tag
+ 2021-04-14 bcbde83c20 go/ast: fix broken build with typeparams build constraint
+ 2021-04-14 492faaeda8 os/exec: replace os.Setenv with T.Setenv
+ 2021-04-14 4df3d0e4df cmd/compile: rescue stmt boundaries from OpArgXXXReg and OpSelectN.
+ 2021-04-14 4480c822ba cmd/internal/obj: don't emit args_stackmap for ABIInternal asm funcs
+ 2021-04-14 25b25a9ed7 cmd/asm: require NOSPLIT for ABIInternal asm functions
+ 2021-04-14 ef36e4fd0e reflect: keep pointer register results alive in callMethod
+ 2021-04-14 ad44dfb0fd cmd/go: clarify comment on HashSeed
+ 2021-04-14 c98026c104 cmd/go/internal/modload: fix truncated error message from goModDirtyError
+ 2021-04-14 72483de87a runtime: incorporate hbits advancement in scanobject into loop
+ 2021-04-14 7ec7a3cf33 runtime: make gcEffectiveGrowthRatio a method on gcControllerState
+ 2021-04-14 e9cc31e736 runtime: pass work.userForced to gcController.endCycle explicitly
+ 2021-04-14 3eaf75c13a runtime: move next_gc and last_next_gc into gcControllerState
+ 2021-04-14 e224787fef runtime: fix formatting of gcMark
+ 2021-04-14 82e4a6310b runtime: move roots' bases calculation to gcMarkRootPrepare
+ 2021-04-14 ab02cbd29f runtime: increase maxargs to avoid syscall18 crash when called with more than 16 args
+ 2021-04-14 58fdac04e4 syscall: don't defer close raw Socketpair fds in tests
+ 2021-04-14 6d8ba77896 cmd/compile: fix importing of method expressions
+ 2021-04-14 e7ab1a5ba8 runtime: create setGCPercent method for gcControllerState
+ 2021-04-14 9bce7b70fd runtime: create initializer for gcControllerState
+ 2021-04-14 2d4ba2601b runtime: move gcPercent and heapMinimum into gcControllerState
+ 2021-04-14 728e3dc6f9 runtime: make gcSetTriggerRatio a method of gcControllerState
+ 2021-04-14 eb433ed5a2 cmd/compile: set types properly for imported funcs with closures
+ 2021-04-14 8dcc071063 cmd/compile/internal/types2: use a global atomic counter for type parameter ids
+ 2021-04-13 34620364cb runtime, cgo/test: improve debugging output
+ 2021-04-13 f2d5bd1ad3 runtime: move internal GC statistics from memstats to gcController
+ 2021-04-13 8c2a8b1771 cmd/compile: always zero the temporary in mapKeyTemp
+ 2021-04-13 b4881d930a cmd/compile: don't modify underlying type when creating bitmap for bodyless function
+ 2021-04-13 efaf75a216 go/*,cmd/gofmt: guard AST changes with the typeparams build tag
+ 2021-04-13 693859542e runtime: rename gcpercent, readgogc, and heapminimum to match Go style
+ 2021-04-13 f5f7647107 runtime: break out GC pacer into its own file
+ 2021-04-13 9913f821e2 cmd/compile: make map functions ABI insensitive
+ 2021-04-13 c19759aa48 runtime: eliminate externalthreadhandler
+ 2021-04-13 e69f02265c runtime: use newm for profileloop
+ 2021-04-13 e512bc2cf0 runtime: use compileCallback for ctrlhandler
+ 2021-04-13 069983e5db archive/tar: replace os.MkdirTemp with T.TempDir
+ 2021-04-13 3bf645a633 cmd/link: force external linking for DragonFly cgo programs
+ 2021-04-13 69262d4871 cmd/compile,cmd/link: resolve cgo symbols to the correct Go ABI
+ 2021-04-13 48531da9e7 cmd/link: build dynexp symbol list directly
+ 2021-04-13 007e247af1 cmd/link: move cgo export map from loadcgo to setCgoAttr
+ 2021-04-13 6208b10d1e cmd/link: refactor setCgoAttr
+ 2021-04-13 10f883deb7 cmd/cgo: document generated cgo directives
+ 2021-04-13 7b19fb1d56 mime: in globs2 file only keep first time extension is seen
+ 2021-04-13 39dd96ca5a cmd/compile/internal/types: add example test for type inference
+ 2021-04-13 4b00eb7af4 cmd/compile: allow OpArgXXXReg comes before LoweredGetClosurePtr
+ 2021-04-13 444d28295b test: make codegen/memops.go work with both ABIs
+ 2021-04-13 13a4e8c41c all: simplify the spelling of Linux
+ 2021-04-13 3e5bba0a44 cmd/link: support 32b TLS_LE offsets on PPC64
+ 2021-04-13 d948b8633d cmd/go: fix 'go help mod edit' JSON documentation
+ 2021-04-12 49e933fc57 cmd/compile: make interface conversion function selection ABI insensitive
+ 2021-04-12 841bc14216 os: restore testErrNotExist's working directory on os.Chdir success
+ 2021-04-12 263e13d1f7 test: make codegen tests work with both ABIs
+ 2021-04-12 3d5e3a15f6 debug/pe: replace os.MkdirTemp with T.TempDir
+ 2021-04-12 c27991bf5b text/template: replace os.MkdirTemp with T.TempDir
+ 2021-04-12 cccd3ba912 internal/execabs: replace ioutil.WriteFile with os.WriteFile
+ 2021-04-12 aad13cbb74 runtime: non-strict InlTreeIndex lookup in expandFinalInlineFrame
+ 2021-04-12 5c9b6e8e63 net: never probe IPv4 map support on DragonFly BSD, OpenBSD
+ 2021-04-12 3e8ba91275 mime: support reading shared mime-info database on unix systems
+ 2021-04-12 1b736b3c19 runtime: consolidate "is sweep done" conditions
+ 2021-04-12 a25a77aed2 runtime: block sweep completion on all sweep paths
+ 2021-04-12 07b2fee460 cmd/link: fix TestLargeText
+ 2021-04-12 849dba07a5 runtime: port performance-critical functions to regabi
+ 2021-04-12 865d2bc78e cmd/compile: do not allocate space for unspilled in-register results
+ 2021-04-12 8b859be9c3 internal/poll: ensure that newPoolPipe doesn't return a nil pointer
+ 2021-04-12 2fa7163b06 cmd/compile: look for newobject in register ABI for write barrier elision
+ 2021-04-12 5d80f8a82b runtime: replace outdated documentation link in Windows' nanotime
+ 2021-04-12 33d99905da cmd/compile: preserve name association when eliding copies in expand_calls
+ 2021-04-12 70ed28e5f7 cmd/compile: support memmove inlining with register args
+ 2021-04-12 585b52261c runtime: remove deferreturn dummy argument
+ 2021-04-12 9ed0e32059 test: consider default GOEXPERIMENT when matching build tags
+ 2021-04-12 51a47b7ff2 cmd/go: display helpful error when module cache can't be created
+ 2021-04-12 117b1c84d3 cmd/go/internal/work: remove '_test' from import paths in stacktraces when -trimpath is specified
+ 2021-04-12 c26f954a54 cmd/compile/internal/amd64: follow-on regabi fix for amd64 zerorange
+ 2021-04-12 16cd770e06 cmd/cgo: throw if C.malloc returns NULL in C.CString or C.CBytes
+ 2021-04-12 954bd8203b cmd/cgo: use tabs to indent _cgoPREFIX_Cfunc__CMalloc function body
+ 2021-04-12 e12abe4bd6 net: fix (*ipStackCapabilities).probe godoc
+ 2021-04-12 7beb988a3b runtime: using wyhash for memhashFallback on 64bit platform
+ 2021-04-12 424abc8d3b os/signal: replace os.MkdirTemp with T.TempDir
+ 2021-04-11 0da9eff503 runtime: simplify syntax for pointer arithmetic in mapaccess functions
+ 2021-04-11 352d329c44 runtime: move zero-sized frame check from newproc to newproc1
+ 2021-04-11 189c6946f5 net: reference the correct RFCs and sections for IP.IsPrivate
+ 2021-04-10 3f4977bd58 cmd/compile/internal/types2: use combined type and ordinary args for type inference
+ 2021-04-10 a6d95b4508 cmd/compile/internal/types2: split out function instantiation from index expr
+ 2021-04-10 36c5f902f9 cmd/compile/internal/types2: factor out index/slice expr handling
+ 2021-04-10 4638545d85 cmd/compile/internal/syntax: accept "~" and "|" interface elements
+ 2021-04-10 1129a60f1c cmd/compile: include typecheck information in export/import
+ 2021-04-10 11f159456b path/filepath: replace os.MkdirTemp with T.TempDir
+ 2021-04-10 6382ec1aba internal/poll: fix the intermittent build failures with pipe pool
+ 2021-04-10 52bf14e0e8 all: fix spellings
+ 2021-04-09 554d2c4f06 reflect: panic on New of go:notinheap type
+ 2021-04-09 5305bdedb0 test: do not run (another) softfloat test with regabiargs
+ 2021-04-09 281d168e2d cmd/compile: don't set Ntype in noder2 anymore
+ 2021-04-09 756e2b1529 cmd/internal/objabi: make GOEXPERIMENT=none mean "no experiment flags"
+ 2021-04-09 c3faff7f2d cmd/go/internal/modload: change mvsReqs to store roots instead of a full build list
+ 2021-04-09 814c5ff138 cmd/go: support module deprecation
+ 2021-04-09 952187af12 cmd/go: upgrade and vendor golang.org/x/mod
+ 2021-04-09 fcf8a6640b cmd/compile/abi-internal: declare R14 completely fixed
+ 2021-04-09 0ad46889a1 cmd/compile/abi-internal: declare X15 scratch in function bodies
+ 2021-04-09 2698be4905 runtime: use sigpanic0 on all OSes
+ 2021-04-09 d11968012c test/abi: disable test with old-style build tag known to run.go
+ 2021-04-09 6951da56b0 Revert "cmd/compile: ensure spills of int/float reg args land in abi slots"
+ 2021-04-09 77b3269fb5 cmd/go: in TestScript, set GOTRACEBACK and use SIGQUIT to terminate hung subprocesses
+ 2021-04-09 a690a5d75f cmd/compile: ensure spills of int/float reg args land in abi slots
+ 2021-04-09 d138ee2cfb test/abi: disable test on windows for now
+ 2021-04-09 dcc801ef81 cmd/go/internal/modload: actually set the depth field passed to newRequirements
+ 2021-04-09 c432917061 cmd/link: link libgcc archive after mingw archives
+ 2021-04-09 519f223aa2 cmd/compile: reduce overhead of RParams in types.Type
+ 2021-04-09 4d7d7a4c50 os: replace os.MkdirTemp with T.TempDir
+ 2021-04-09 8518aac314 crypto/x509: replace os.MkdirTemp with T.TempDir
+ 2021-04-09 d25c4fbe05 test: do not run softfloat test with regabiargs
+ 2021-04-09 19034fa855 cmd/objdump: update test with register ABI
+ 2021-04-08 5811605df9 cmd/go: fix mod_list_update_nolatest on windows
+ 2021-04-08 d67e739989 os/exec: replace os.MkdirTemp with T.TempDir
+ 2021-04-08 ec367e5b05 cmd/compile: adjust interface conversion function selection with 0-sized fields
+ 2021-04-08 6c98ecda10 cmd/compile: don't use fast32/64 map functions for aggregates
+ 2021-04-08 a9e475a15a cmd/compile: add recursive-invalidate Value method, use in expand_calls
+ 2021-04-08 7e583806d8 runtime/cgo: clarify Handle documentation
+ 2021-04-08 bb76193a7f cmd/compile: fix buglet in walk convert phase relating to convF32/64
+ 2021-04-08 793844207d cmd/go: strip GOEXPERIMENT from hash salt
+ 2021-04-08 98dd205fa4 runtime: see whether gp==nil before checking preemption state
+ 2021-04-08 46ffbec1d6 cmd/compile: break out transformations of tcCompLit into transformCompLit
+ 2021-04-08 ecca94a7d1 cmd/go/internal/modload: add a dormant depth type
+ 2021-04-08 96a6745088 runtime: use register ABI in panicIndex/Slice functions
+ 2021-04-08 ca8540affd cmd/compile: fix buglet in walk convert phase relating to convT64
+ 2021-04-08 d474b6c824 test/abi: clean up test to fix builders
+ 2021-04-08 23e1d36a87 cmd/go: in 'go list -m', ignore "not found" errors loading updates
+ 2021-04-08 0e09e4143e cmd/go: assume Go 1.16 semantics uniformly for unversioned modules
+ 2021-04-08 31d2556273 runtime: set up read-only dummy TLS space for needm on Windows
+ 2021-04-08 283b02063b cmd/compile: sanitize before/after expansion OpSelectN references
+ 2021-04-08 1be8be4acc cmd/go: fix TestNewReleaseRebuildsStalePackagesInGOPATH
+ 2021-04-08 912c4e29d3 reflect: fix typo in result-in-registers case
+ 2021-04-08 1749f3915e sync: update misleading comment in map.go about entry type
+ 2021-04-08 a7e16abb22 runtime: replace os.MkdirTemp with T.TempDir
+ 2021-04-08 2123dfba65 Revert "cmd/compile/internal/noder: limit the number of goroutine"
+ 2021-04-08 8752454ece cmd/internal/objabi: clarify initialization of Experiments
+ 2021-04-08 5159c83641 runtime,cmd/link: include GOEXPERIMENTs in runtime.Version(), "go version X"
+ 2021-04-08 a8e55538af cmd/internal/objabi: make GOEXPERIMENT be a diff from default experiments
+ 2021-04-08 89ca1ce9a8 cmd/compile,cmd/internal/objabi: abstract out object header string
+ 2021-04-08 b675e52e95 internal/goexperiment: consolidate experiment-enabled constants
+ 2021-04-08 6304b401e4 internal/goexperiment,cmd: consolidate GOEXPERIMENTs into a new package
+ 2021-04-08 0c4a08cb74 cmd/asm,runtime: reduce spellings of GOEXPERIMENTs
+ 2021-04-08 aeaa4519b5 runtime: drop haveexperiment, sys.GOEXPERIMENT
+ 2021-04-07 f60aa7a18c syscall: replace os.MkdirTemp with T.TempDir
+ 2021-04-07 fca51ba24a cmd/internal/obj: remove ppc64 msr support from MOV* insns
+ 2021-04-07 e306d06063 runtime/map: update comment for gc/reflect
+ 2021-04-07 b3064b66d0 cmd/compile/internal/types2: combine two loops (cleanup of TODO)
+ 2021-04-07 4520da486b cmd/pack: use testing.T.TempDir in tests
+ 2021-04-07 b55d900529 cmd/compile: correct argument area size for typedmemmove/typedmemclr
+ 2021-04-07 d6aa162f30 embed, testing/fstest: small optimization for ReadDir
+ 2021-04-07 5d5f779db4 net/http: replace os.MkdirTemp with T.TempDir
+ 2021-04-07 4bbe046aad cmd/compile/internal/syntax: add "~" operator
+ 2021-04-07 836356bdaa cmd/compile/internal/types2: process errors in src order during testing
+ 2021-04-07 8f1099b585 cmd/compile/internal/syntax, types2: move cmpPos to pos.Cmp
+ 2021-04-07 1395432f23 cmd/compile/internal/types2: remove Config.AcceptMethodTypeParams flag
+ 2021-04-07 7d5c54eee4 cmd/compile/internal/types2: remove Config.InferFromConstraints flag
+ 2021-04-07 bce85b7011 cmd/compile/internal/types2: combine all type inference in a single function
+ 2021-04-07 8462169b5a cmd/compile: pre-spill pointers in aggregate-typed register args
+ 2021-04-07 8d77e45064 cmd/compile: fix bug of conditional instructions on arm64
+ 2021-04-06 972e883925 runtime/cgo: add Handle for managing (c)go pointers
+ 2021-04-06 b084073b53 reflect: refactor funcLayout tests
+ 2021-04-06 0a510478b0 runtime: use register ABI for race detector functions
+ 2021-04-06 7da8490cbb path/filepath: replace os.MkdirTemp with T.TempDir
+ 2021-04-06 0bc4605ead cmd/go/internal/modload: track conflicts in versionLimiter
+ 2021-04-06 b56177a303 cmd/compile: check for unused OpArg* and mark invalid (again)
+ 2021-04-06 f5efa5a313 cmd/compile: load results into registers on open defer return path
+ 2021-04-06 bcc4422ee1 runtime: deflake TestGCTestIsReachable
+ 2021-04-06 1271e9a9cc time: properly quote strings containing quotes and backslashes
+ 2021-04-06 2e6f39beb0 cmd/go/internal/modload: factor out a method to update loader requirements
+ 2021-04-06 d6a90d06d2 cmd/compile/internal/types2: simplify Checker.Call
+ 2021-04-06 3a30381b21 cmd/compile/internal/types2: simplify Checker.funcInst
+ 2021-04-06 93466cc1b6 cmd/compile/internal/types2: review of pos.go and move into syntax package
+ 2021-04-06 d57189e92b test/syntax: remove interface.go
+ 2021-04-06 55bac87bd6 runtime/pprof: deflake TestMorestack
+ 2021-04-06 b345a306a0 cmd/compile: when GOSSAFUNC is set, dump the current pass on crash
+ 2021-04-06 939b561a6e cmd/internal/obj: reorg ppc64 MOV* optab entries and remove unused classes
+ 2021-04-06 5cd8a34495 cmd/compile: fix gcSizes.Sizeof for a zero-sized struct
+ 2021-04-06 84162b8832 cmd/compile/internal/typecheck: call tcConv directly
+ 2021-04-06 a25c584629 os: implement fs.StatFS for os.DirFS
+ 2021-04-06 d8306ee1f9 runtime: make reflectcall ABI0 on amd64
+ 2021-04-06 298975c634 runtime: use funcID to identify abort in isAbortPC
+ 2021-04-05 b2389ad3ce cmd/compile: fix for zerorange on plan9-amd64
+ 2021-04-05 d446cb7cff reflect: call ABI0 callReflect/callMethod
+ 2021-04-05 0723f062ff cmd/compile: enable panic+recover adjustment for some ABI wrappers
+ 2021-04-05 79b2e14b1a crypto/ed25519: add comprehensive edge-case test vectors
+ 2021-04-05 27015152ec flag: use strings.Builder instead of concatenating strings
+ 2021-04-05 ee40bb666b cmd/compile: add "surprised by IData of Arg" case for register args
+ 2021-04-05 254fb85c12 cmd/go: print deprecation notice for 'go get cmd'
+ 2021-04-05 d5b9dc1317 cmd/cgo: pass end position info for C function arguments.
+ 2021-04-05 e985245cd5 net: make ErrClosed and ParseError implement net.Error
+ 2021-04-05 a1a45afd4a cmd/internal/obj: remove duplicate ppc64 spr MOV* optab entries
+ 2021-04-05 a11244e95e time: use offset and isDST when caching zone from extend string
+ 2021-04-05 cf148f3d46 cmd/compile, runtime: use ABI-aware function converting float to interface
+ 2021-04-05 a040ebeb98 all: update references to symbols moved from io/ioutil to io
+ 2021-04-05 9abedf4827 cmd/compile/internal/ssagen: conditon not need
+ 2021-04-05 5cc5576a9c cmd/compile: untangle Wrapper and ABIWrapper flags
+ 2021-04-05 45e87cd3ec cmd/compile: disable tail call for method wrappers when RegabiArgs is enabled
+ 2021-04-05 411860251e cmd/compile: reference ABIInternal memequal_varlen
+ 2021-04-05 e617b2b0dd cmd/compile: add a debug flag to enable/disable open-coded defers
+ 2021-04-05 dcf85b30ba cmd/link: mangle function name with ABI on Mach-O
+ 2021-04-05 9e3328e740 cmd/internal/objabi: remove StackPreempt
+ 2021-04-05 191167c2b2 cmd/internal/obj/s390x: simplify huge frame prologue
+ 2021-04-05 042f4cbb6f cmd/internal/obj/riscv: simplify huge frame prologue
+ 2021-04-05 a06b08e7d1 cmd/internal/obj/ppc64: simplify huge frame prologue
+ 2021-04-05 2b63404ddb cmd/internal/obj/mips: simplify huge frame prologue
+ 2021-04-05 4702dd67a7 cmd/internal/obj/arm64: simplify huge frame prologue
+ 2021-04-05 24dd8cfe23 cmd/internal/obj/arm: simplify huge frame prologue
+ 2021-04-05 ef3122e909 cmd/internal/obj/x86: simplify huge frame prologue
+ 2021-04-05 af1789a61c runtime: extend internal atomics to comply with sync/atomic
+ 2021-04-05 a4b8241d97 cmd/compile: get rid of Fields in types.Interface, use allMethods in types.Type instead
+ 2021-04-05 6ed045b365 cmd/go: refactor modload.CheckRetractions
+ 2021-04-05 ee51e3d895 cmd/go: refactor modload.ListModules to accept bit flags
+ 2021-04-04 4230a6ebdd os: don't use T.Cleanup in TestRemoveAllLongPath
+ 2021-04-04 7bfd681c2f runtime/pprof: skip tests for AIX
+ 2021-04-04 776d8d387c os, path/filepath: use T.Cleanup to restore the original working directory
+ 2021-04-03 9e7bc80b31 os: reuse readdir buffers on unix with a sync.Pool
+ 2021-04-03 dac136f87b archive/zip: fix character device handling in fileModeToUnixMode
+ 2021-04-03 971c7154b0 io/fs: implement subFS.Sub
+ 2021-04-03 6986c02d72 cmd/compile: rename newNamedTypeWithSym, add some commemnts
+ 2021-04-03 fe587ce856 cmd/dist: include "go1.x-" in devel go version strings
+ 2021-04-03 01821137c2 cmd/compile/internal/types2: review of errors.go
+ 2021-04-03 93dcaba119 cmd/compile/internal/types2: review of stmt.go
+ 2021-04-03 a1e4657d5a cmd/compile/internal/types2: review of check_test.go
+ 2021-04-03 6454b2720f cmd/compile/internal/types2: review of resolver.go
+ 2021-04-02 2ebe77a2fd cmd/internal/obj: use REGENTRYTMP* in a few more places
+ 2021-04-02 f25d78f8e2 testing: clarify when Cleanup is called
+ 2021-04-02 35a8bbc9ea runtime: make concatstring{2,3,4,5} consistent w/ compiler's use
+ 2021-04-02 41cf18eda7 reflect: fix methodValueCall frame size on mips64
+ 2021-04-02 34b87b4a1a reflect: remove short-circuits for zero-sized types in ABI algorithm
+ 2021-04-02 254948a50e cmd/compile: mark unused values as invalid to prevent problems in expandCalls
+ 2021-04-02 28c5fed557 reflect: add register ABI support for makeFuncStub and methodValueCall
+ 2021-04-02 6996bae5d1 cmd/compile: use ABI0 for cgo_unsafe_args functions
+ 2021-04-02 759116b3ac syscall: delete asm_windows.s
+ 2021-04-02 2d88f8f21e go/src/cmd/go/internal/work: compile "internal/abi" with "-+"
+ 2021-04-02 3651eff74e cmd/link: delete CompilationUnit.Pkg field
+ 2021-04-02 b165085836 cmd/link: remove an unused function from linker dwarf gen
+ 2021-04-02 a78b12aea7 cmd/link: remove unnecessary attrReachable test
+ 2021-04-02 aebc0b473e cmd/compile: fix bug in phiopt pass
+ 2021-04-02 97b3ce430b runtime: make gcTestMoveStackOnNextCall not double the stack
+ 2021-04-02 41e8a9f1cf runtime: fix TestGCTestMoveStackOnNextCall flakes
+ 2021-04-02 5579ee169f cmd/compile: in expand calls, preserve pointer store type but decompose aggregate args
+ 2021-04-01 27d306281c reflect,runtime: assume register ABI with GOEXPERIMENT=regabiargs
+ 2021-04-01 51cd074c59 reflect: undo register count increments on register assignment failure
+ 2021-04-01 45ca9ef5c1 cmd/compile: fix register/offset calculation for trailing empty field case.
+ 2021-04-01 e6ac2df2b1 net/url: use camelCase names
+ 2021-04-01 5f646f0a98 cmd/compile: fix parameter offset calculation
+ 2021-04-01 ec721d92bf runtime: fix uses of ABIInternal PCs in assembly
+ 2021-04-01 1f29e69bad cmd/compile: fix outgoing calls with GOEXPERIMENT=regabiargs
+ 2021-04-01 3304b2235a cmd/compile: fix incoming ABI with GOEXPERIMENT=regabiargs
+ 2021-03-31 87c6fa4f47 cmd/internal/obj/x86: use ABI scratch registers for WRAPPER prologue
+ 2021-03-31 5d6581d747 cmd/compile: deduplicate OpArg's across types
+ 2021-03-31 4acefa07b1 go/parser: switch to resolving objects as a post-processing pass
+ 2021-03-31 44dd06670f runtime: support register ABI Go functions from Windows callbacks
+ 2021-03-31 cb42e3e979 cmd/compile: schedule in-register OpArg first
+ 2021-03-31 46fa8afca6 cmd/go/internal/load/test: parse overlay files for test functions
+ 2021-03-31 ca3aefc4a9 cmd/compile: make expandCalls preserve types of pointer stores
+ 2021-03-31 c847932804 runtime: replace reflectcall of defers with direct call
+ 2021-03-31 135c9f45ec cmd/compile/internal/types2: review of operand.go
+ 2021-03-31 34fb2b2ed5 cmd/compile/internal/types2: review of decl.go
+ 2021-03-31 0e8a72b62e runtime: check for sysAlloc failures in pageAlloc
+ 2021-03-31 c93cd86149 net/http: use consistent case in URL in names
+ 2021-03-31 1d8abb3417 go/parser: remove redundant list argument to Parser.shortVarDecl
+ 2021-03-31 152ca79b73 go/parser: add resolution tests for type params
+ 2021-03-31 6d2a557a4d cmd/compile: deal with call.Use correctly for noder2, allow inlining of stenciled functions
+ 2021-03-31 f2717b31b5 cmd/compile: deal correctly with unnamed function params during stenciling
+ 2021-03-30 606e0aba74 go/ast: add missing handling for ListExpr in Walk
+ 2021-03-30 c3ec79bca9 go/parser: resolve the type name when parsing a composite lit value
+ 2021-03-30 0fdd371e6b go/parser: add data-driven tests for object resolution
+ 2021-03-30 64ca7e2cb3 cmd/compile: avoid generating duplicated in-register Arg
+ 2021-03-30 4b1a24f3cd runtime: fix G passed to schedEnabled and cleanup
+ 2021-03-30 e0ce0af6ef runtime: check that defer/go frames are empty
+ 2021-03-30 1318fb4a32 cmd/compile: handle partial type inference that doesn't require function args
+ 2021-03-30 3300390ec7 cmd/compile: make amd64 version of zerorange regabi-friendly
+ 2021-03-30 c40dc677be go/doc: avoid panic on references to functions with no body
+ 2021-03-30 6cadfe2fee reflect: cache IsVariadic calls in Call
+ 2021-03-30 43afb1a220 cmd/go: fix documentation on how to create new go.mod file
+ 2021-03-30 89b141c06e cmd/compile: emit writebarriers in specified ABI
+ 2021-03-30 c274a7c03b cmd/compile/internal/noder: limit the number of goroutine
+ 2021-03-30 e4a4161f1f runtime: non-strict InlTreeIndex lookup in Frames.Next
+ 2021-03-30 a81b5e4d0a crypto/elliptic: fix some typos
+ 2021-03-30 032ef4bbfc cmd/compile: fix creation of named generic types (setting of t.nod)
+ 2021-03-30 bb2fc21c3b runtime: fix typos in comments
+ 2021-03-30 33945869c1 cmd/compile: update default ABI choices for calls and bodyless fn stack maps
+ 2021-03-30 eeadfa2d38 cmd/compile: fix various small bugs related to type lists
+ 2021-03-30 a95454b6f3 runtime: init plan9 hashkey by time
+ 2021-03-30 06ad41642c cmd/compile: wrap defer/go call with results
+ 2021-03-30 e27f3966bb cmd/compile: be sure to wrap defer/go calls with arguments
+ 2021-03-30 bd6628e62d cmd/compile: check deferred nil interface call before wrapping it
+ 2021-03-29 4e1bf8ed38 runtime: add GC testing helpers for regabi signature fuzzer
+ 2021-03-29 1ef114d12c runtime: abstract specials list iteration
+ 2021-03-29 4e16422da0 cmd/internal/obj/ppc64: remove bogus MOVBU optab entry
+ 2021-03-29 164a6265e7 go/types: remove use of ioutil (cleanup)
+ 2021-03-29 9fbd0f64d8 runtime: fix some typos
+ 2021-03-29 67d565d281 cmd/compile: restructure ABI wrapper generation, export ABI
+ 2021-03-29 feb844f1ea cmd/compile: eliminate -abiwraplimit
+ 2021-03-29 1e8fff0f7b cmd/compile: assert that function values reference ABIInternal
+ 2021-03-29 0d1423583b cmd/compile: set ir.Name.Func in more cases
+ 2021-03-29 33b4ffc357 cmd/compile: track funcsyms by ir.Name instead of types.Sym
+ 2021-03-29 2ba296da47 cmd/compile: update a few stale comments
+ 2021-03-29 24764496c7 go/types: remove outdated comment
+ 2021-03-29 1a7d921aa5 cmd/compile: remove typechecker calls in varDecl()
+ 2021-03-29 2abf280a28 cmd/compile/internal/types2: remove 'strict' argument from several methods
+ 2021-03-29 8f676144ad crypto/rsa: fix salt length calculation with PSSSaltLengthAuto
+ 2021-03-29 565e70fcef cmd/link/internal/ld: use linkerFlagSupported to check -Qunused-arguments
+ 2021-03-29 6f90ee36e9 math: simplify comparison in FMA when swapping p and z
+ 2021-03-29 d10241fcf6 runtime: fix some typos
+ 2021-03-29 ba6bd967d2 cmd/compile/internal/ssa: strengthen phiopt pass
+ 2021-03-28 23ffb5b9ae runtime: overwrite existing keys for mapassign_faststr variant
+ 2021-03-27 49dccf141f time: add Time.Unix{Milli,Micro} and to-Time helpers UnixMicro, UnixMilli
+ 2021-03-27 2de1f42857 net: clear completed Buffers to permit earlier collection
+ 2021-03-26 359f44910f cmd/compile: fix long RMW bit operations on AMD64
+ 2021-03-26 98a902323f cmd/vendor, cmd/pprof: use golang.org/x/term directly
+ 2021-03-26 3a0061822e cmd/compile: add arm64 rules to optimize go codes to constant 0
+ 2021-03-25 b587b050ca cmd/compile: add transform functions for OXDOT and builtins
+ 2021-03-25 374b190475 io/fs: implement FileInfoToDirEntry
+ 2021-03-25 11b4aee05b cmd/compile: mark R16, R17 clobbered for non-standard calls on ARM64
+ 2021-03-25 5834ce1dd7 cmd/compile/internal/ssa: unnecessary loop break
+ 2021-03-25 691db3737c cmd/cover: use golang.org/x/tools/cover directly
+ 2021-03-25 5cec8b85e5 net/http/httptest: wait for user ConnState hooks
+ 2021-03-25 7ce361737f net: only perform IPv4 map check for AF_INET6 sockets
+ 2021-03-25 569c86d23b cmd/compile/internal/types2: review of importer_test.go
+ 2021-03-25 ada77d23ae cmd/compile/internal/types2: review of examples test
+ 2021-03-25 2c8692d45f cmd/compile/internal/types2: review of example_test.go
+ 2021-03-25 ffa9983b99 cmd/compile/internal/types2: review of api_test.go
+ 2021-03-25 34ef294b76 cmd/compile/internal/types2: review of lookup.go
+ 2021-03-25 0fc595ec99 cmd/compile/internal/types2: review of check.go
+ 2021-03-25 74fe516c35 cmd/go: add -benchtime to cacheable test flags
+ 2021-03-25 82a1e0f9d3 cmd/link: make symbol data writable before toc fixup
+ 2021-03-25 4d66d77cd2 database/sql: remove unnecessary types in composite literals
+ 2021-03-25 53941b6150 cmd/compile: fix defer desugar keepalive arg handling buglet
+ 2021-03-25 9f4d5c94b0 cmd/go: emit error when listing with -f and -json
+ 2021-03-25 402d784b8f path/filepath: make Rel handle Windows UNC share
+ 2021-03-25 dec3d00b28 cmd/compile/internal/types2: review of stdlib_test.go
+ 2021-03-25 ddcdbb417b cmd/compile/internal/types2: review of assignments.go
+ 2021-03-25 607f99904e cmd/compile/internal/types2: review of api.go
+ 2021-03-25 c69515c9fd cmd/compile/internal/types2: review of expr.go
+ 2021-03-25 4889afe8f8 cmd/go/internal/load: use setLoadPackageDataError in loadImport
+ 2021-03-25 adb037d67a cmd/go: attribute direct imports from indirect dependencies to the importing package
+ 2021-03-25 954879d6d1 cmd/go/internal/modload: replace the global buildList with structured requirements
+ 2021-03-25 a95e2ae280 test: skip fixedbugs/issue36705 on Windows
+ 2021-03-25 80157b5144 crypto/x509: fix spelling error
+ 2021-03-25 e7e0995cba cmd/compile: create/use noder2 transform functions for more node types
+ 2021-03-24 29ed12d4c7 testing: update permitted number of -race goroutines
+ 2021-03-24 179bcd787e test: only run bug513.go if cgo is enabled
+ 2021-03-24 63e9f6d5f0 test: recognize cgo build tag
+ 2021-03-24 dade83a588 cmd/internal/moddeps: fix false positive when $TMPDIR is symlinked
+ 2021-03-24 fef5a15396 runtime: bypass ABI wrapper when calling needm on Windows
+ 2021-03-24 771c57e68e cmd/compile: disable shortcircuit optimization for intertwined phi values
+ 2021-03-24 fd5e0bd385 cmd/link: mangle function names with ABI on PE
+ 2021-03-24 6f62f852ef net/http: fix request cancellation race
+ 2021-03-24 0e31de280f math/big: don't require runtime.(*Frame).Next symbol present
+ 2021-03-24 975b097307 cmd/link: separate elf addend size from reloc size
+ 2021-03-24 e8700f1ce6 cmd/compile, cmd/link: use weak reference in itab
+ 2021-03-24 747f426944 cmd/internal/obj: remove bogus load/store optab entries from ppc64
+ 2021-03-24 d8960e65a2 cmd/go: move psuedo-version and version sorting to x/mod
+ 2021-03-24 2e94401277 os/exec: use testenv.SkipFlaky in TestExtraFilesFDShuffle
+ 2021-03-24 4357f71ca7 cmd/compile: remove more dead code and data structures
+ 2021-03-24 14ef2d8c01 cmd/compile: fix array case in types-for-register parameter
+ 2021-03-23 87a3ac5f53 cmd/compile: don't let -race override explicit -d=checkptr=0
+ 2021-03-23 769d4b68ef cmd/compile: wrap/desugar defer calls for register abi
+ 2021-03-23 4e27aa6cd2 os/exec: simplify TestContextCancel
+ 2021-03-23 dc289d3dcb io: fix spelling in documentation for io.Discard
+ 2021-03-23 2887ef499a cmd/compile/internal/test: update abi tests for recent spec changes
+ 2021-03-23 c59b17e5a2 cmd/go: make -coverpkg=all skip test-only packages
+ 2021-03-23 05250429ae net/http: treat MaxBytesReader's negative limits as equivalent to zero limit
+ 2021-03-23 9b78c68a15 cmd/compile: remove AuxCall.results, cleanup ssagen/ssa.go
+ 2021-03-23 53dd0d7809 net: make go resolver aware of network parameter
+ 2021-03-23 f4b918384d test: enable fixedbugs/bug193.go for -G compiler option
+ 2021-03-23 cd26192aba go/types: remove superfluous code for shift checking
+ 2021-03-23 e7aa0f9f28 go/types, types2: add a test case for shifts that used to fail
+ 2021-03-23 8f19394b62 cmd/compile/internal/types2: refactor untyped conversions
+ 2021-03-23 0265b6475f cmd/compile: replace calls to typecheck with transform functions
+ 2021-03-23 b8371d495b runtime: support long paths without fixup on Windows 10 >= 1607
+ 2021-03-23 b182ba7fab cmd/compile: optimize codes with arm64 REV16 instruction
+ 2021-03-23 d25476ebb2 cmd/internal/obj/arm64: fix constant pool size calculation error
+ 2021-03-23 c819907754 cmd/{compile,link}: relocate generation of DWARF for global vars
+ 2021-03-22 1c9e587b90 net: add IP.IsPrivate
+ 2021-03-22 d9691ffa37 cmd/compile/internal/walk: relocate a stray comment
+ 2021-03-22 a93849b9e2 cmd/compile: remove now-redundant AuxCall.args
+ 2021-03-22 196c33e92d cmd/compile: fix WriteFuncMap for new ABI.
+ 2021-03-22 ba6b8e75ed os/exec: avoid flaky Wait in TestContextCancel
+ 2021-03-22 78afca22c9 runtime: fix bogus NtCurrentTeb()->TlsSlots[n] calculation on windows/arm64
+ 2021-03-22 8fd0f83552 cmd/compile/internal/ssa: correct sign extension for consts on riscv64
+ 2021-03-22 5437b5a24b cmd/compile: disallow rewrite rules from declaring reserved names
+ 2021-03-22 bd8b3fe5be cmd/compile: make no-op rewrite funcs smaller
+ 2021-03-22 e838c76a6e cmd/go/internal/modload: remove go116EnableNarrowAll constant
+ 2021-03-22 d8394bfc7f cmd/internal/obj/arm64: mark functions with small stacks NOSPLIT
+ 2021-03-20 e0fae78e1d runtime: fix stack alignment for Windows amd64 lib entry
+ 2021-03-19 6ae3b70ef2 cmd/compile: add clobberdeadreg mode
+ 2021-03-19 9f2a71b6e7 make.bash: this change modifies Go to correctly select a dyamic linker
+ 2021-03-19 3b0d28808d cmd/go: assume Go 1.16 instead of Go 1.11 for dependencies that lack explicit 'go' directives
+ 2021-03-19 1c590661e7 testing: allow parallel-subtest goroutines to exit when the subtest is complete
+ 2021-03-19 482903150d syscall: fix typo in exec_windows_test.go
+ 2021-03-19 836dbdb15b runtime: mark Windows' address-taken asm routines as ABIInternal
+ 2021-03-19 4deaa6a178 runtime: call nanotimeQPC from nanotime1 without a wrapper
+ 2021-03-19 e58fb90c75 net/http: make ExampleGet show StatusCode checks for non-1XX,2XX responses
+ 2021-03-19 a937729c2c net/http: mention NewRequestWithContext+Client.Do for custom contexts
+ 2021-03-19 196b104bc1 cmd/internal/obj/ppc64: consolidate memory classifications
+ 2021-03-19 ed3ae9a340 cmd/doc: properly display interface methods
+ 2021-03-19 9136d958ab cmd/asm: complete the support for VDUP on arm64
+ 2021-03-19 6704843202 testing: update helperNames just before checking it
+ 2021-03-19 dcc96e4b94 io/ioutil: use correct Go version in redirection comments
+ 2021-03-18 90b1ed1602 cmd/compile: get untyped constants working in generic functions
+ 2021-03-18 095ba22597 cmd/internal/objabi,runtime: simplify sys.GOEXPERIMENT parsing
+ 2021-03-18 0c93b16d01 cmd: move experiment flags into objabi.Experiment
+ 2021-03-18 d3ab6b5049 test: switch fieldtrack test to use GOEXPERIMENT
+ 2021-03-18 bdbba22404 reflect: add tests for reflect.Value.Call for the new ABI
+ 2021-03-18 79d03ad739 runtime/pprof: move common code to writeProfileInternal function
+ 2021-03-18 e4253cd023 cmd/link: Add section data slice to Archrelocvariant
+ 2021-03-18 b95e4b7850 go/types: minor simplification in assignableTo (cleanup)
+ 2021-03-18 f47fab938e cmd/compile: remove unneeded calls to typecheck in noder2
+ 2021-03-18 eaa1ddee84 all: explode GOEXPERIMENT=regabi into 5 sub-experiments
+ 2021-03-18 c71acbfe83 test: make nosplit test invariant to ABI wrappers
+ 2021-03-18 af4388aee1 cmd/internal/objabi: support boolean GOEXPERIMENTs
+ 2021-03-18 6461d74bf2 cmd/dist: build bootstrap without GOEXPERIMENT
+ 2021-03-18 06ca809410 cmd/internal/objabi: centralize GOEXPERIMENT parsing
+ 2021-03-18 b7cb92ad12 cmd/go: remove renameio package and its last usage
+ 2021-03-18 e726e2a608 cmd/go: suppress errors for 'go get' of module paths that are also constrained-out packages
+ 2021-03-18 6b6ea3271f cmd/go: use the global rooted path name
+ 2021-03-18 db4adb1a9b cmd/link: print symbol versions in stack bound check
+ 2021-03-18 9de49ae01a crypto/rsa: correct EncryptOAEP doc comment
+ 2021-03-18 732ea4c2dc sort: add example tests for SearchFloat64s and SearchInts
+ 2021-03-18 c2d625168f cmd/compile,cmd/internal/obj/riscv: load >32-bit constants from memory for riscv64
+ 2021-03-18 42c25e65f3 cmd/compile: actually intrinsify runtime/internal/atomic.{And,Or}{8,} on RISCV64
+ 2021-03-18 6517844129 cmd/compile: use a single const MOV operand for riscv64
+ 2021-03-18 f5e6d3e879 cmd/compile: add rewrite rules for conditional instructions on arm64
+ 2021-03-18 51e4bb236c cmd/compile/internal/types2: delay recording types of untyped operands when checking against type parameters
+ 2021-03-18 2583c1b4df go/types: add test case for issue #45096
+ 2021-03-17 f38b6428a2 crypto/rand, internal/syscall/unix: add support for getentropy syscall on darwin
+ 2021-03-17 f82ce7fb23 cmd/link: improve nonexistent package error message
+ 2021-03-17 7e00049b55 cmd/go: only add a 'go' directive to the main module when the go.mod file will be written
+ 2021-03-17 4313c28861 cmd/cgo: check whether C compiler exists
+ 2021-03-17 a5df88355c time: check int64 overflow in Time.addSec
+ 2021-03-17 5423f6023c test: add bug that failed when run with gccgo
+ 2021-03-17 8628bf9a97 cmd/compile: resurrect clobberdead mode
+ 2021-03-17 0bd308ff27 go/parser: avoid formatting a panic message if an assertion succeeds
+ 2021-03-17 70d54df4f6 cmd/compile: getting more built-ins to work with generics
+ 2021-03-17 2f3db220d1 crypto/tls: remove flaky cancellation test
+ 2021-03-17 72b501cb03 compress/lzw: add Reset method to Reader and Writer
+ 2021-03-17 119d76d98e math/bits: folded reverse tables by using const string
+ 2021-03-17 a98a0a75b4 os/user: make user.LookupGroupId function work for large entries
+ 2021-03-17 a826f7dc45 debug/dwarf: support DW_FORM_rnglistx aka formRnglistx
+ 2021-03-17 63b0a0a5b8 spec: fix rendering of >=
+ 2021-03-17 68f8e1af29 cmd/compile/internal/types2: review of call.go
+ 2021-03-16 7a1e963058 cmd/compile, cmd/link: dynamically export writable static tmps
+ 2021-03-16 dc1556eaef cmd/compile: update some comments
+ 2021-03-16 c870e86329 cmd/asm: when dynamic linking, reject code that uses a clobbered R15
+ 2021-03-16 72d98df88e cmd/go: bail out from script tests earlier when a timeout occurs
+ 2021-03-16 1824667259 cmd/compile/internal/ssa: delete unused files
+ 2021-03-16 13a0f7b502 spec: clarify that signed integers>=0 are permitted as shift counts
+ 2021-03-16 d206ca5cac cmd/compile: fix open defer of method call
+ 2021-03-16 0ec2c4abba cmd/compile: (fixed) spill output parameters passed in registers as autos
+ 2021-03-16 832a01aad4 cmd/compile: deal with comparable embedded in a constraint
+ 2021-03-16 e31e84010e cmd/asm: add rotr/drotr for mips64
+ 2021-03-16 bd0fc0b9c3 cmd/link: preserve elf phdr flags when loading external objects
+ 2021-03-16 860704317e crypto/tls: add HandshakeContext method to Conn
+ 2021-03-16 0089f8b2f5 cmd/go: test that 'go mod tidy' retains upgraded indirect dependencies
+ 2021-03-16 120b9eb1c3 cmd/go/internal/modload: in readonly mode, do not read go.mod files missing checksums
+ 2021-03-16 26c32de7c9 cmd/go/internal/modcmd: in 'go mod tidy', suspend go.mod writes until tidy
+ 2021-03-16 afe517590c cmd/compile: loads from readonly globals into const for mips64x
+ 2021-03-16 600259b099 cmd/compile: use depth first topological sort algorithm for layout
+ 2021-03-16 051bf37833 cmd/compile/internal/ssa: handle more cases in fuse pass
+ 2021-03-16 15f16706fb internal/poll: eliminate the redundant type conversions of FD.Sysfd
+ 2021-03-16 78f9015236 runtime: using wyhash for memhashFallback on 32bit platform
+ 2021-03-16 f02a26bed0 time: support "," as separator for fractional seconds
+ 2021-03-15 a9b3c4bd06 time: add Time.IsDST() to check if its Location is in Daylight Savings Time
+ 2021-03-15 d7cc2f1d7c reflect: panic if ArrayOf is called with negative length
+ 2021-03-15 661f3f15d5 net: fix BenchmarkWriteToReadFromUDP on Windows
+ 2021-03-15 de2b27dee7 all: run gofmt
+ 2021-03-15 e61c9ddb7f Revert "cmd/compile: spill output parameters passed in registers as autos"
+ 2021-03-15 8ed438c077 cmd/compile: spill output parameters passed in registers as autos
+ 2021-03-15 96aecdcb36 cmd/compile: fix case where func-valued field of a generic type is called
+ 2021-03-15 c236095638 cmd/compile: add support for generic maps
+ 2021-03-15 dca9c11845 cmd/compile: add support for generic channels and type conversion during calls
+ 2021-03-15 bd6aeca968 runtime: prepare arenas for use incrementally
+ 2021-03-15 a9cfd55e2b encoding/xml: replace comments inside directives with a space
+ 2021-03-15 4d014e7231 encoding/xml: handle leading, trailing, or double colons in names
+ 2021-03-15 cc4e6160a7 net: use mid-stack inlining with ReadFromUDP to avoid an allocation
+ 2021-03-15 2d4042d4ab all: update golang.org/x/* dependencies
+ 2021-03-15 a8d9fb2fcd cmd/internal/moddeps: fix typo in TestAllDependencies log messages
+ 2021-03-15 c4190fc34d cmd/compile: remove ARMv5 special case in register allocator
+ 2021-03-15 8ac6544564 bytes: correct tense in comment
+ 2021-03-15 0f4bb9627e cmd/compile: fix outdated comment
+ 2021-03-15 7bfe32f39c cmd/internal/obj: reorder ppc64 MOV* optab entries
+ 2021-03-15 4350e4961a crypto/md5: improve ppc64x performance
+ 2021-03-15 6ccb5c49cc cmd/link/internal/ld: fix typo in a comment
+ 2021-03-14 d0d38f0f70 cmd/compile: fix whitespace in comment
+ 2021-03-14 3cdd5c3bcc cmd/link: regression test for issue #42484
+ 2021-03-14 a8b59fe3cd encoding/json: fix package shadowing in MarshalIndent example
+ 2021-03-14 061a6903a2 all: add internal/itoa package
+ 2021-03-14 88b8a16089 cmd/cover: replace code using optimized golang.org/x/tools/cover
+ 2021-03-13 7936efecc8 net/http: revert change from CL 299109 breaking TestAllDependencies
+ 2021-03-13 1767d2cc2f io/fs: use testing.T.TempDir in TestWalkDir
+ 2021-03-13 4bd4dfe96a cmd/compile/internal/ssa: prealloc slice
+ 2021-03-13 8336c311f8 io: add error check to WriteString Example test
+ 2021-03-13 3224990dad fmt: use “truncateString” not “truncate” in method doc
+ 2021-03-13 fedb494878 errors/wrap: do not call Elem() twice
+ 2021-03-13 289d34a465 all: remove duplicate words
+ 2021-03-13 b3235b75d1 encoding/gob: ensure "duplicate type received" decoder errors surface up
+ 2021-03-13 83e79c7b14 crypto/ecdsa: fix dead reference link
+ 2021-03-13 59e012991a net/http: note that "HTTP/2" is invalid for ParseHTTPVersion
+ 2021-03-13 a8a85281ca runtime: fix documented alignment of 32KiB and 64KiB size classes
+ 2021-03-13 8e725f8452 all: use HTML5 br tags
+ 2021-03-13 73eb27bd3b misc/cgo/testcarchive: don't use == for string equality in C code
+ 2021-03-13 7588ef0d90 cmd/compile/internal/types2: use self_test.go from go/types
+ 2021-03-13 16ad1ea841 cmd/compile/internal/types2: simplify error reporting API (cleanup)
+ 2021-03-13 7b47f9a5f2 cmd/compile: mention that -m can be increased or given multiple times
+ 2021-03-12 3eebc26700 delete favicon.ico and robots.txt
+ 2021-03-12 86bbf4beee cmd/go: fix godoc formatting for text from 'go help install'
+ 2021-03-12 78052f4c4e cmd/compile: minor cleanup -- remove dead code conditional on test
+ 2021-03-12 7240a18adb cmd/compile: test register ABI for method, interface, closure calls
+ 2021-03-12 cdd08e615a cmd/go/internal/load: always set IsImportCycle when in a cycle
+ 2021-03-12 4662029264 runtime: simplify divmagic for span calculations
+ 2021-03-12 735647d92e runtime: add alignment info to sizeclasses.go comments
+ 2021-03-12 086357e8f6 cmd/go: include default GOEXPERIMENT in build config
+ 2021-03-12 9289c12002 Revert "testing/fstest: test that ReadDirFile on a non-dir fails"
+ 2021-03-12 e8b82789cd A+C: add new e-mail addresses for Andy Pan
+ 2021-03-12 e87c4bb3ef cmd/compile: fix noder.Addr() to not call typechecker
+ 2021-03-12 71330963c0 internal/poll: fix some grammar errors
+ 2021-03-12 a607408403 cmd/internal/obj/arm64: add support for op(extended register) with RSP arguments
+ 2021-03-12 71a6c13164 cmd/compile: call types.CheckSize() in g.typ()
+ 2021-03-11 7fc638d6f1 cmd: move GOEXPERIMENT knob from make.bash to cmd/go
+ 2021-03-11 b3896fc331 net/http: revert change to generated file from CL 296152
+ 2021-03-11 4dd9c7cadc cmd/go: remove some fsyncs when writing files
+ 2021-03-11 43d5f213e2 cmd/compile: optimize multi-register shifts on amd64
+ 2021-03-11 b0733ba12d hash/maphash: increase the buffer size
+ 2021-03-11 64d323f45a hash/maphash: optimize Write and WriteString
+ 2021-03-11 ae9cd1299c hash/maphash: manually inline setSeed
+ 2021-03-11 86d6678429 testing/fstest: clarify TestFS docs
+ 2021-03-11 1853411d83 testing/fstest: test that ReadDirFile on a non-dir fails
+ 2021-03-11 bbf79793bd io/fs: clarify additional File interface docs
+ 2021-03-11 0a655598e1 cmd/link: fix glink resolver generation on ppc64le
+ 2021-03-11 f009b5b226 runtime: support register ABI for finalizers
+ 2021-03-11 415ca3f1f0 test: add test that caused a gofrontend internal error
+ 2021-03-11 0fc370c5d2 docs: clarify when APIs use context.Background.
+ 2021-03-11 b8e9ec856c syscall: use runtime.KeepAlive for ProcThreadAttributeList arguments
+ 2021-03-11 9ece63f064 crypto/rand, internal/syscall/unix: add support for getrandom syscall on solaris
+ 2021-03-11 79e3ee52f4 internal/syscall/unix: unify GetRandom implementation
+ 2021-03-11 3a3b8164fd cmd/dist: refactor test constraints for misc/cgo/testsantizers
+ 2021-03-11 68f3344fe9 cmd/compile: remove 8-byte alignment requirement of stack slot on ppc64
+ 2021-03-11 fdded79e6e cmd/compile: fix handling of partially inferred type arguments
+ 2021-03-10 1bad3831a0 cmd/internal/obj: remove param element from ppc64 optab
+ 2021-03-10 aa26687e45 runtime, time: disable preemption in addtimer
+ 2021-03-10 f9ed8b3f1e cmd/go/internal/mvs: factor out an incremental implementation
+ 2021-03-10 2ceb79db52 cmd/go/internal/modload: make EditBuildList report whether the build list was changed
+ 2021-03-10 b7f0fb6d9e cmd/go/internal/modload: fuse upgrading with downgrading in EditBuildList
+ 2021-03-10 a1a3d33b0d cmd/go: test remote lookup of packages with leading dots in path elements
+ 2021-03-10 ccf9acefa8 cmd/compile/internal: improve handling of DS form offsets on ppc64x
+ 2021-03-10 c41bf9ee81 runtime: check partial lock ranking order
+ 2021-03-10 5ce51ea741 flag: panic if flag name begins with - or contains =
+ 2021-03-10 d0b79e3513 encoding/xml: prevent infinite loop while decoding
+ 2021-03-10 cd3b4ca9f2 archive/zip: fix panic in Reader.Open
+ 2021-03-10 1811aeae66 cmd/compile: deal with helper generic types that add methods to T
+ 2021-03-10 5edab39f49 cmd/gofmt: fix const association to avoid inaccurate comment
+ 2021-03-10 489231111f go/types: add missing build tag to api_go1.18_test.go
+ 2021-03-10 7457462303 runtime/race: update dead link
+ 2021-03-10 818f6b14b4 cmd/compile: remove ".fp" fake arg
+ 2021-03-10 bc489dd6d5 runtime: update signature of reflectcall functions
+ 2021-03-10 30c28bbf05 cmd/go: avoid password prompts in TestScript/mod_get_private_vcs
+ 2021-03-10 cf59850466 crypto/rand: supports for getrandom syscall in DragonFlyBSD
+ 2021-03-10 4d608eb224 testing: fix typo in a comment
+ 2021-03-10 643d240a11 internal/poll: implement a pipe pool for splice() call
+ 2021-03-10 d33e2192a7 cmd/go: allow '+' in package import paths in module mode
+ 2021-03-10 41245ab283 cmd/compile/internal/types2: remove concept of finals
+ 2021-03-10 acd7cb5887 cmd/compile/internal/types2: better error reporting framework (starting point)
+ 2021-03-09 142a76530c go/types: improve the positioning of broken import errors
+ 2021-03-09 48ddf70128 cmd/asm,cmd/compile: support 5 operand RLWNM/RLWMI on ppc64
+ 2021-03-09 18510ae88f runtime, cmd/link/internal/ld: disable memory profiling when data unreachable
+ 2021-03-09 e4f3cfadf6 net: don't append a dot to TXT records on Plan 9
+ 2021-03-09 382851c1fd cmd/compile: fix failure to communicate between ABIinfo producer&consumer
+ 2021-03-09 9f5298ca6e cmd/compile: fix confusion in generating SelectN index
+ 2021-03-09 98dfdc82c8 cmd/compile: fix broken type+offset calc for register args
+ 2021-03-09 5eb9912084 cmd/compile: fix OpArg decomposer for registers in expandCalls
+ 2021-03-09 48895d021b cmd/compile: remove skipping of implicit operations during export
+ 2021-03-09 b6df58bd1f cmd/compile: detect duplicate importing earlier
+ 2021-03-09 e8e425cb23 runtime: add pollDesc partial edges
+ 2021-03-09 b60a3a8cfb cmd/compile: add debugging mode for import/export
+ 2021-03-09 a70eb2c9f2 cmd/compile: get instantiated generic types working with interfaces
+ 2021-03-09 034fffdb49 net: use io.Discard in TestSendfileOnWriteTimeoutExceeded
+ 2021-03-09 762ef81a56 cmd/link/internal/ld: deflake TestWindowsIssue36495
+ 2021-03-09 b70a2bc9c6 cmd/compile: make ValAndOff.{Val,Off} return an int32
+ 2021-03-09 437d229e2a runtime: document netpollclose
+ 2021-03-09 618b66e16d cmd/compile: remove 4-byte alignment requirement of stack slot on arm
+ 2021-03-08 b6def6a34e cmd/vet: bring in sigchanyzer to report unbuffered channels to signal.Notify
+ 2021-03-08 a08adda12c os/signal: remove comments about SA_RESTART
+ 2021-03-08 bd37284784 cmd/link: use testing.T.TempDir in tests
+ 2021-03-08 fee3cd4250 cmd/compile: fix width not calculated for imported type
+ 2021-03-08 7419a86c82 cmd/link/internal/ld: fix typo in a comment
+ 2021-03-08 b4787201c9 cmd/compile: minor doc improvements
+ 2021-03-08 aafad20b61 encoding/binary: limit bytes read by Uvarint to <= 10
+ 2021-03-08 125eca0f72 cmd/compile: improve IsNonNil rule on riscv64
+ 2021-03-07 597b5d192e cmd/compile: rename internal-abi.md to abi-internal.md
+ 2021-03-07 b0df92703c math/big: add shrVU and shlVU benchmarks
+ 2021-03-05 414fa8c35e cmd/internal/objabi: use a separate bit to mark weak relocation
+ 2021-03-05 009bfeae86 reflect: add VisibleFields function
+ 2021-03-05 f901ea701d cmd/internal/goobj: store relocation type as uint16
+ 2021-03-05 87d29939c8 runtime: remove racefuncenterfp
+ 2021-03-05 7205a4fbdc cmd/internal/goobj: regenerate builtin list
+ 2021-03-05 fb03be9d55 cmd/compile: use getcallersp for gorecover "fp" arg
+ 2021-03-05 a22bd3dc73 cmd/compile: use getcallerpc for racefuncentry
+ 2021-03-05 a829114b21 cmd/compile: match Aux and AuxInt explicitly in store combining rule
+ 2021-03-05 d85083911d runtime: encapsulate access to allgs
+ 2021-03-05 39bdd41d03 cmd/go/internal/modfetch/codehost: report git errors more accurately
+ 2021-03-05 44721f4565 test: enable "-d=panic" by default for errorcheck*
+ 2021-03-05 c082f9fee0 cmd/compile: do not set ONAME type when evaluated in type context
+ 2021-03-05 fbee173545 cmd/compile: fix wrong condition in tcShift
+ 2021-03-05 9e6b1fcd0a cmd/compile: do not report error for invalid constant
+ 2021-03-05 51d8d351c1 cmd/compile: do not set type for OTYPESW
+ 2021-03-05 80098ef00c cmd/compile: don't expand invalid embedded interface
+ 2021-03-05 70b277cf2e cmd/compile: only check return for valid functions
+ 2021-03-05 d4247f5167 text/template: wrap errors returned by template functions instead of stringifying them
+ 2021-03-05 67b9ecb23b runtime: update paniclk ordering
+ 2021-03-05 280c735b07 cmd/go: require a module root in 'go list -m' with an unversioned path
+ 2021-03-05 a2f7067233 reflect: include the alignment of zero-sized types in stack offsets
+ 2021-03-05 c5a1c2276e reflect: use global variables for register count
+ 2021-03-05 302a400316 cmd/go/internal/modfetch: detect and recover from missing ziphash file
+ 2021-03-05 2e794c2bb1 testing: add TB.Setenv
+ 2021-03-05 2217e89ba3 net/http/httptrace: fix doc typo
+ 2021-03-05 31df4e3fcd cmd/link: add relocs type for mips64x
+ 2021-03-05 60b500dc6c math/big: remove bounds checks for shrVU_g inner loop
+ 2021-03-05 f0b6d3753f cmd/go: update PWD variable for 'go generate'
+ 2021-03-05 2b0e29f516 docs: fix case of GitHub
+ 2021-03-05 b62da08909 cmd/go: update error expectations in TestScript/mod_install_pkg_version
+ 2021-03-05 a7526bbf72 encoding/json: marshal maps using reflect.Value.MapRange
+ 2021-03-04 96a96a9058 cmd/compile: remove types2.(*Selection).TArgs(), now that instance bug seems fixed
+ 2021-03-04 d891ebdce1 cmd/compile: return (and receive) medium-large results
+ 2021-03-04 d6504b8097 cmd/compile: tweak offset-generator to elide more +0 offsets
+ 2021-03-04 5c5552c5ba cmd/compile: add register abi tests
+ 2021-03-04 56d52e6611 cmd/go: don't report missing std import errors for tidy and vendor
+ 2021-03-04 b87e9b9f68 cmd/go: clarify errors for commands run outside a module
+ 2021-03-04 a99ff24a26 cmd/compile/internal/syntax: print type parameters and type lists
+ 2021-03-04 9d3718e834 cmd/compile: remove I-saw-a-register-pragma chatter
+ 2021-03-04 c015f76acb cmd/compile: implement too-big-to-SSA struct passing in registers
+ 2021-03-04 77505c25d8 syscall: treat proc thread attribute lists as unsafe.Pointers
+ 2021-03-04 9d88a9e2bf cmd/compile: implement simple register results
+ 2021-03-04 2d30c94874 cmd/internal: Add 6 args to ppc64 optab
+ 2021-03-04 cfb609bfb7 cmd/go: ensure that the test subprocess always times out in TestScript/test_write_profiles_on_timeout
+ 2021-03-04 9c54f878d2 runtime: remove GODEBUG=scavenge mode
+ 2021-03-04 9a40dee3ee cmd/go: reject 'go list -m MOD@patch' when no existing version of MOD is required
+ 2021-03-04 a416efef5a runtime: remove a duplicated testcase of TestPallocDataFindScavengeCa…
+ 2021-03-04 3778f8e07d cmd/compile: fix pointer maps for morestack
+ 2021-03-04 a2d92b5143 cmd/compile: register abi, morestack work and mole whacking
+ 2021-03-04 868a110c56 cmd/compile: make check2 gracefully exit if it reported errors
+ 2021-03-04 1d0256a989 cmd/compile: do not add invalid key to constSet
+ 2021-03-04 4b8b2c5864 cmd/compile: do not set type for OTYPE
+ 2021-03-04 8c22874e4e cmd/compile: skip diag error in checkassign if one was emitted
+ 2021-03-04 12a405b96a cmd/compile: do not set type for OPACK
+ 2021-03-04 b7f4307761 cmd/compile: graceful handle error in noder LoadPackage
+ 2021-03-04 4532467c18 cmd/compile: pass register parameters to called function
+ 2021-03-04 95ff296a11 cmd/compile: pass arguments as register parameters to StaticCall.
+ 2021-03-04 04a4dca2ac cmd/compile: refactor out an almost-superfluous arg
+ 2021-03-04 775f11cda1 cmd/internal/obj/arm64: remove unncessary class check in addpool
+ 2021-03-04 27dbc4551a cmd/asm: disable scaled register format for arm64
+ 2021-03-04 593f5bbad7 cmd/compile: adjust stack slot alignment requirements on arm64
+ 2021-03-04 355c3a037e cmd/internal/obj/asm64: add support for moving BITCON to RSP
+ 2021-03-04 726d704c32 cmd/asm: add arm64 instructions VUMAX and VUMIN
+ 2021-03-04 79beddc773 cmd/asm: add 128-bit FLDPQ and FSTPQ instructions for arm64
+ 2021-03-04 12bb256cb3 go/types: use correct recv for parameterized embedded methods
+ 2021-03-03 6db80d7420 cmd/compile/internal/types2: use correct recv for parameterized embedded methods
+ 2021-03-03 d6f6ef6358 cmd/compile: remove races introduced in abiutils field update
+ 2021-03-03 3e524ee65a cmd/compile: make modified Aux type for OpArgXXXX pass ssa/check
+ 2021-03-03 9f33dc3ca1 cmd/compile: handle aggregate OpArg in registers
+ 2021-03-03 c4e3f6c4c7 cmd/compile: remove 8-byte alignment requirement of stack slot on s390x
+ 2021-03-03 85f62b0941 cmd/compile: remove 8-byte alignment requirement of stack slot on mips
+ 2021-03-03 497feff168 cmd/compile: intrinsify runtime/internal/atomic.{And,Or}{8,} on RISCV64
+ 2021-03-03 00cb841b83 syscall: implement rawVforkSyscall for remaining linux platforms
+ 2021-03-03 f2df1e3c34 cmd/compile: retrieve Args from registers
+ 2021-03-03 06c72f3627 A+C: change email address for Baokun Lee
+ 2021-03-03 84ca4949a7 cmd/compile: remove 8-byte alignment requirement of stack slot on mips64
+ 2021-03-03 77973863c3 cmd/compile: use abiutils for all rcvr/in/out frame offsets.
+ 2021-03-03 aea1259a72 cmd/link: disable flaky Darwin "symbols" test
+ 2021-03-02 312fd9937d cmd/go: remove -insecure flag on go get
+ 2021-03-02 2a2f99eefb cmd/go/internal/modload: do not resolve an arbitrary version for 'go list --versions'
+ 2021-03-02 b65091c11d cmd/go: add a test case that reproduces #44296
+ 2021-03-02 e9eed78dc3 cmd/go: resolve std-vendored dependencies as std packages except in 'go get' and 'go mod'
+ 2021-03-02 09f4ef4fa7 cmd/go/internal/mvs: prune spurious dependencies in Downgrade
+ 2021-03-02 c6374f5162 dist: generate stub go.mod in workdir
+ 2021-03-02 97b32a6724 cmd/compile: better version of check frame offsets against abi
+ 2021-03-02 2b50ab2aee cmd/compile: optimize single-precision floating point square root
+ 2021-03-02 ebb92dfed9 internal/poll, runtime: handle netpollopen error in poll_runtime_pollOpen
+ 2021-03-02 4c1a7ab49c cmd/go: reject relative paths in GOMODCACHE environment
+ 2021-03-02 580636a78a all: fix spelling
+ 2021-03-02 a6eeb4add4 go/parser,go/types: hide API changes related to type parameters
+ 2021-03-02 ff5cf4ced3 cmd/link,debug/elf: mips32, add .gnu.attributes and .MIPS.abiflags sections
+ 2021-03-01 700b73975e runtime: use entersyscall in syscall_syscallX on Darwin
+ 2021-03-01 a69c45213d go/types: review of expr.go
+ 2021-03-01 b98ce3b606 cmd/compile: import empty closure function correctly
+ 2021-03-01 97bdac03ae cmd: upgrade golang.org/x/mod to relax import path check
+ 2021-03-01 f6a74c6568 cmd/compile/internal/ir: fix up stale comment
+ 2021-03-01 87beecd6df cmd/go: add missing newline to retraction warning message
+ 2021-03-01 a400eb3261 Revert "cmd/compile: check frame offsets against abi"
+ 2021-03-01 5fafc0bbd4 cmd/go/internal/modload: don't query when fixing canonical versions
+ 2021-03-01 2a8df4488e os: mark pipes returned by os.Pipe() as inheritable by default
+ 2021-02-27 5ff7ec98b7 cmd/compile: check frame offsets against abi
+ 2021-02-27 a429926159 cmd/compile: fix escape analysis of heap-allocated results
+ 2021-02-27 998fe70b68 cmd/compile: fixed which-result confusion in presence of 0-width types
+ 2021-02-27 d9fd38e68b time: correct unusual extension string cases
+ 2021-02-26 cda8ee095e reflect: fix register ABI spill space calculation
+ 2021-02-26 d8e33d558e cmd/compile: deal with closures in generic functions and instantiated function values
+ 2021-02-26 19f96e73bf syscall: introduce SysProcAttr.ParentProcess on Windows
+ 2021-02-26 3146166baa syscall: introduce SysProcAttr.AdditionalInheritedHandles on Windows
+ 2021-02-26 2d760816ff syscall: restrict inherited handles on Windows
+ 2021-02-26 ba9168bd07 syscall: add support for proc thread attribute lists
+ 2021-02-26 f41460145e cmd/link: recognize ARM64 PE files and relocations
+ 2021-02-26 a655208c9e cmd/link: handle types as converted to interface when dynlink
+ 2021-02-26 23943a6737 cmd/compile: fix mishandling of unsafe-uintptr arguments with call method in go/defer
+ 2021-02-26 e25040d162 cmd/compile: change StaticCall to return a "Results"
+ 2021-02-26 9a555fc24c cmd/compile: fix missing descend in Addrtaken for closures.
+ 2021-02-25 a61524d103 cmd/internal/obj: add Prog.SetFrom3{Reg,Const}
+ 2021-02-25 5f15af111c syscall: comment on fields omitted from the win32finddata1 struct
+ 2021-02-25 9a7fe196e4 Revert "cmd/compile: fix mishandling of unsafe-uintptr arguments with call method in go/defer"
+ 2021-02-25 b83d073e9e reflect: add Method.IsExported and StructField.IsExported methods
+ 2021-02-25 7fcf9893f7 cmd/internal/obj: fix typo in docs
+ 2021-02-25 6c3bcda866 cmd/compile: declare inlined result params early for empty returns
+ 2021-02-25 526ee96f49 os: avoid allocation in File.WriteString
+ 2021-02-25 194b636f8f database/sql: close driver.Connector if it implements io.Closer
+ 2021-02-25 4ebb6f5110 cmd/compile: automate resultInArg0 register checks
+ 2021-02-25 1a3e968b1f cmd/compile: fix mishandling of unsafe-uintptr arguments with call method in go/defer
+ 2021-02-25 ee2a45e5fb runtime: use pipe2 for nonblockingPipe on dragonfly
+ 2021-02-25 1f7a01459b runtime: batch moving gFree list between local p and global schedt
+ 2021-02-25 bcac57f89c cmd: upgrade golang.org/x/mod to fix go.mod parser
+ 2021-02-25 3137da82fd cmd/go: add a script test corresponding to the downhiddenartifact MVS test
+ 2021-02-25 2c4c189bba cmd/go/internal/mvs: add test cases for downgrade interaction with hidden versions
+ 2021-02-25 9fe8ebf9b4 test: add test case that failed with gccgo
+ 2021-02-25 ad17b65b34 testing/fstest: treat dash specially when building glob
+ 2021-02-25 37ca84a9cd syscall: return error if GetQueuedCompletionStatus truncates key
+ 2021-02-25 76c0003cd5 syscall, os: use pipe2 syscall on DragonflyBSD instead of pipe
+ 2021-02-25 666ad85df4 cmd/compile: fix typo in rewrite_test.go
+ 2021-02-25 d822ffebc5 test: fix inline.go test for linux-amd64-noopt
+ 2021-02-25 ff614b13d9 runtime: subtract one from ip when determining abort
+ 2021-02-24 dbbc5ec7e8 syscall: restore broken GetQueuedCompletionStatus signature but make it not crash
+ 2021-02-24 d0d21b7c4c cmd/compile: plumb abi info into expandCalls
+ 2021-02-24 8027343b63 cmd/compile: disable inlining functions with closures for now
+ 2021-02-24 6c3f8a2f47 cmd/link: use ctxt.Logf instead of package log
+ 2021-02-24 3ee32439b5 cmd/compile: ARM64 optimize []float64 and []float32 access
+ 2021-02-24 80ddc17ae1 cmd/compile/internal-abi: fix ABI0-equivalence for zero-sized values
+ 2021-02-24 3deb528199 cmd/compile/internal-abi: update internal ABI spec for g register
+ 2021-02-24 478277f812 cmd/compile/internal-abi: use x87 mode, not MMX mode
+ 2021-02-24 bf48163e8f cmd/compile: add rule to coalesce writes
+ 2021-02-24 b7f62daa59 cmd/internal/goobj: add test case for object file reader
+ 2021-02-24 c9d9b40b13 context: avoid importing context package twice
+ 2021-02-24 dc4698f52b syscall: do not overflow key memory in GetQueuedCompletionStatus
+ 2021-02-24 7a2f3273c5 cmd/compile: plumb abi info into ssagen/ssa
+ 2021-02-24 adb467ffd2 cmd/compile: reduce inline cost of OCONVOP
+ 2021-02-24 27684ea195 testing: print late arriving log line in panic
+ 2021-02-24 ae1fa08e41 context: reduce contention in cancelCtx.Done
+ 2021-02-24 691ac806d2 cmd/go: fix version validation in 'go mod edit -exclude'
+ 2021-02-24 b97b1456ae cmd/go, cmd/cgo: pass -mfp32 and -mhard/soft-float to MIPS GCC
+ 2021-02-24 07c658316b io/ioutil: forward TempFile and TempDir to os package
+ 2021-02-24 04edf418d2 encoding/json: reduce allocated space in Unmarshal
+ 2021-02-24 e496120891 database: remove race in TestTxContextWait
+ 2021-02-24 26001d109e go/types: review of call.go
+ 2021-02-24 35b80eac7d hash/maphash: remove duplicate from Hash documentation
+ 2021-02-24 eb863240dc runtime: remove unused const stackSystem on dragonfly
+ 2021-02-24 084b07d6f6 spec: improve sentence structure for passing a slice
+ 2021-02-24 6ba4a300d8 docs: fix spelling
+ 2021-02-24 43652dc46f bufio, bytes, strings: handle negative runes in WriteRune
+ 2021-02-24 3780529255 unicode: correctly handle negative runes
+ 2021-02-24 0694fb3d78 image: resolve the TODO of doc comment style
+ 2021-02-23 6cc8aa7ece go/types: minor updates to comments to align with types2
+ 2021-02-23 42b9e3a8df context: fix XTestInterlockedCancels
+ 2021-02-23 aaed6cbced testing/race: fixing intermittent test failure
+ 2021-02-23 fbed561f8a runtime: reset stack poison flag accidentally set
+ 2021-02-23 0458d8c983 go/types, types2: constraints may be parenthesized and that includes "any"
+ 2021-02-23 74903553bc doc: start draft go1.17 release notes, move go1.16 to x/website
+ 2021-02-23 fa40c0232c cmd/go: reproduce issue #44497 in TestScript/mod_edit
+ 2021-02-23 a4dac8bd22 runtime: use BX instead of R15 in race detector
+ 2021-02-23 c49c7a675a runtime: save R15 before checking AVX state
+ 2021-02-23 d2911d7612 cmd/compile: fold MOV*nop and MOV*const
+ 2021-02-23 d434c2338b runtime: clarify GC fractional mode description
+ 2021-02-23 a671e33c6d all: use more precise build tags
+ 2021-02-23 c584f42dcf cmd/compile: change riscv64 Eq32/Neq32 to zero extend before subtraction
+ 2021-02-23 080119799b runtime: fix usleep on windows/arm
+ 2021-02-23 74cac8d479 cmd/compile: add AMD64 parameter register defs, Arg ops, plumb to ssa.Config
+ 2021-02-23 42cd40ee74 cmd/compile: improve bit test code
+ 2021-02-23 f1562c7610 cmd/go: recognize DLL magic from llvm binaries
+ 2021-02-23 bf5fa2d198 cmd/compile: guard special register usage with GOEXPERIMENT=regabi
+ 2021-02-23 c7f596f919 cmd/go: resolve TODO by replacing InDir() function
+ 2021-02-23 5e94fe9316 go/build/constraint: fix splitPlusBuild func doc comment
+ 2021-02-23 55d7dcc3cd runtime: optimize the memory padding in p struct
+ 2021-02-23 ab331c0254 runtime/cgo: use correct lean and mean macro
+ 2021-02-23 91cfbf39e4 cmd/link: set .ctors COFF section to writable and aligned
+ 2021-02-23 811167e2c9 cmd/link: do not pass -Bsymbolic for PE DLLs
+ 2021-02-23 a51daac840 cmd/link: set SizeOfRawData rather than VirtualSize in COFF files for .bss section
+ 2021-02-23 e5159b2a2f cmd/internal/dwarf: minor cleanups
+ 2021-02-23 b3b65f2176 runtime: enable race detector on openbsd/amd64
+ 2021-02-23 a78b0e6721 internal/poll: fix the verbose condition in splice
+ 2021-02-23 08543f0715 ios/fs: mention f.dir in (*subFS).fixErr godoc
+ 2021-02-23 0398a771d2 cmd/internal/obj/riscv: prevent constant loads that do not target registers
+ 2021-02-23 6525abddce cmd/internal/obj/riscv: clean up branch tests
+ 2021-02-23 c4b771348c runtime: fix windows/arm signal handling assembly
+ 2021-02-23 2a18e37c4e cmd/compile: remove backend's "scratch mem" support
+ 2021-02-23 e52149822b cmd/compile: simplify assert{E,I}2I{,2} calling conventions
+ 2021-02-23 86deb459de cmd/compile: remove selectnbrecv2
+ 2021-02-23 4048491234 cmd/compile,runtime: make selectnbrecv return two values
+ 2021-02-23 5e804ba17d cmd/compile: use transitive relations for slice len/cap in poset
+ 2021-02-23 6a40dd05d8 cmd/compile/internal/types2: review of sanitize.go
+ 2021-02-23 975ba6e2b2 cmd/compile: mark OpSB, OpSP as poor statement Op
+ 2021-02-23 a2e150c7cd go/types, cmd/compile/internal/types2: use regular type printing for unsafe.Pointer
+ 2021-02-23 5a0e4fc4e7 cmd/compile/internal/types2: review of conversions.go
+ 2021-02-23 89eb2b55b9 cmd/compile/internal/types2: review of issues_test.go
+ 2021-02-23 378f73e2d5 cmd/compile/internal/types2: enable TestIssue25627
+ 2021-02-23 1901e2647f test: add test for findTypeLoop with symbols from other packages
+ 2021-02-23 5f3dabbb79 cmd/compile: fix import of functions of multiple nested closure
+ 2021-02-23 7af821a661 all: faster midpoint computation in binary search
+ 2021-02-23 f113e9a14f cmd/dist: match goexperiment.regabi tag when GOEXPERIMENT is on
+ 2021-02-22 1126bbb82a go/parser: return ast.BadExpr for missing index operands
+ 2021-02-22 1678829d95 cmd/compile: correctly use X15 to zero frame
+ 2021-02-22 094048b938 cmd/compile/internal: loop opt
+ 2021-02-22 1391d4142c fix typo in issue16760.go
+ 2021-02-22 04903476fe cmd/compile: reject some rare looping CFGs in shortcircuit
+ 2021-02-22 87e984ab29 test: add test for issue 38698
+ 2021-02-22 b2bdadfe88 cmd/internal: cleanup ppc64 optab structure
+ 2021-02-21 0f66fb7b85 go/internal/gccgoimporter: fix up gccgo installation test
+ 2021-02-21 e78e04ce39 cmd/compile: fix panic in DWARF-gen handling obfuscated code
+ 2021-02-20 03d36d8198 syscall: add explicit ios build tag
+ 2021-02-20 40656f3a75 doc/1.16: fix link to fs.FileInfo
+ 2021-02-20 d4b2638234 all: go fmt std cmd (but revert vendor)
+ 2021-02-20 0625460f79 cmd/vet: update buildtag check for //go:build lines
+ 2021-02-20 9fd6cc105d go/printer: canonicalize //go:build and // +build lines while formatting
+ 2021-02-20 5b76343a10 go/build: prefer //go:build over // +build lines
+ 2021-02-20 a8942d2cff runtime/pprof: disable TestMorestack on darwin/arm64
+ 2021-02-20 078f08f0ee spec: every type has a method set (minor clarification)
+ 2021-02-19 26713b5fef go/types: don't write during sanitizeInfo if nothing has changed
+ 2021-02-19 9a99515c8f all: REVERSE MERGE dev.typeparams (7cdfa49) into master
Change-Id: I4cf2fdc409e7028ff505042c33672f74755a97ed
2021-05-11 14:34:16 -04:00
1001 changed files with 38667 additions and 17685 deletions
want(t,slogged,`{"range":{"start":{"line":7,"character":13},"end":{"line":7,"character":13}},"severity":3,"code":"leak","source":"go compiler","message":"parameter z leaks to ~r2 with derefs=0",`+
want(t,slogged,`{"range":{"start":{"line":7,"character":13},"end":{"line":7,"character":13}},"severity":3,"code":"leak","source":"go compiler","message":"parameter z leaks to ~r0 with derefs=0",`+
`"relatedInformation":[`+
`{"location":{"uri":"file://tmpdir/file.go","range":{"start":{"line":9,"character":13},"end":{"line":9,"character":13}}},"message":"escflow: flow: y = z:"},`+
`{"location":{"uri":"file://tmpdir/file.go","range":{"start":{"line":9,"character":13},"end":{"line":9,"character":13}}},"message":"escflow: from y := z (assign-pair)"},`+
`{"location":{"uri":"file://tmpdir/file.go","range":{"start":{"line":9,"character":13},"end":{"line":9,"character":13}}},"message":"escflow: from \u0026y.b (address-of)"},`+
`{"location":{"uri":"file://tmpdir/file.go","range":{"start":{"line":9,"character":3},"end":{"line":9,"character":3}}},"message":"escflow: from return (*int)(~R0) (return)"}]}`)
`{"location":{"uri":"file://tmpdir/file.go","range":{"start":{"line":9,"character":3},"end":{"line":9,"character":3}}},"message":"escflow: from return ~R0 (return)"}]}`)
ls:=x.rewriteSelect(leaf,selector.Args[0],offset+leafType.Width,regOffset+RO_complex_imag)// result is FloatNN, width of result is offset of imaginary part.
ls:=x.rewriteSelect(leaf,selector.Args[0],offset+selector.Type.Width,regOffset+RO_complex_imag)// result is FloatNN, width of result is offset of imaginary part.
(GetG mem) && !(buildcfg.Experiment.RegabiG && v.Block.Func.OwnAux.Fn.ABI() == obj.ABIInternal) => (LoweredGetG mem) // only lower in old ABI. in new ABI we have a G register.
(GetG mem) && v.Block.Func.OwnAux.Fn.ABI() != obj.ABIInternal => (LoweredGetG mem) // only lower in old ABI. in new ABI we have a G register.
{name:"CALLstatic",argLength:1,reg:regInfo{clobbers:callerSave},aux:"CallOff",clobberFlags:true,call:true},// call static function aux.(*obj.LSym). arg0=mem, auxint=argsize, returns mem
{name:"CALLclosure",argLength:3,reg:regInfo{inputs:[]regMask{gpsp,buildReg("R26"),0},clobbers:callerSave},aux:"CallOff",clobberFlags:true,call:true},// call function via closure. arg0=codeptr, arg1=closure, arg2=mem, auxint=argsize, returns mem
{name:"CALLinter",argLength:2,reg:regInfo{inputs:[]regMask{gp},clobbers:callerSave},aux:"CallOff",clobberFlags:true,call:true},// call fn by pointer. arg0=codeptr, arg1=mem, auxint=argsize, returns mem
{name:"CALLstatic",argLength:-1,reg:regInfo{clobbers:callerSave},aux:"CallOff",clobberFlags:true,call:true},// call static function aux.(*obj.LSym). last arg=mem, auxint=argsize, returns mem
{name:"CALLclosure",argLength:-1,reg:regInfo{inputs:[]regMask{gpsp,buildReg("R26"),0},clobbers:callerSave},aux:"CallOff",clobberFlags:true,call:true},// call function via closure. arg0=codeptr, arg1=closure, last arg=mem, auxint=argsize, returns mem
{name:"CALLinter",argLength:-1,reg:regInfo{inputs:[]regMask{gp},clobbers:callerSave},aux:"CallOff",clobberFlags:true,call:true},// call fn by pointer. arg0=codeptr, last arg=mem, auxint=argsize, returns mem
// pseudo-ops
{name:"LoweredNilCheck",argLength:2,reg:regInfo{inputs:[]regMask{gpg}},nilCheck:true,faultOnNilArg0:true},// panic if arg0 is nil. arg1=mem.
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