d00e96d3ae
This is a pain to test. Also the original test was never executed, because it was wrong. It looks like processors that might lack this features include Intel 11th generation and AMD Zen 4. These might or might not have bit 2 set in the 7th cpuid "leaf" (SM4) which is what the incorrect test was checking; the bug is triggered by ^VNNI & SM4. Apparently the SM4 bit is not usually set, else we would have seen a test failure. The "Lion Cove" microarchitecture (Arrow Lake, Lunar Lake) appears to trigger this problem, it's not clear if there are others. It was hard to verify this from online information. Fixes #76881. Change-Id: I21be6b4f47134d81e89799b0f06f89fcb6563264 Reviewed-on: https://go-review.googlesource.com/c/go/+/731240 TryBot-Bypass: David Chase <drchase@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
The Go Programming Language
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
Gopher image by Renee French, licensed under Creative Commons 4.0 Attribution license.
Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.
Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.
Download and Install
Binary Distributions
Official binary distributions are available at https://go.dev/dl/.
After downloading a binary release, visit https://go.dev/doc/install for installation instructions.
Install From Source
If a binary distribution is not available for your combination of operating system and architecture, visit https://go.dev/doc/install/source for source installation instructions.
Contributing
Go is the work of thousands of contributors. We appreciate your help!
To contribute, please read the contribution guidelines at https://go.dev/doc/contribute.
Note that the Go project uses the issue tracker for bug reports and proposals only. See https://go.dev/wiki/Questions for a list of places to ask questions about the Go language.