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x/sys/cpu: No flag for SVE2 detection #66952

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mhr3 opened this issue Apr 21, 2024 · 1 comment
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x/sys/cpu: No flag for SVE2 detection #66952

mhr3 opened this issue Apr 21, 2024 · 1 comment
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arch-arm64 NeedsDecision Feedback is required from experts, contributors, and/or the community before a change can be made.
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Unreleased

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@mhr3
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mhr3 commented Apr 21, 2024

Go version

go version go1.22.1 darwin/arm64

Output of go env in your module/workspace:

GO111MODULE=''
GOARCH='arm64'

What did you do?

When using the ARM64 struct from x/sys/cpu, there's no field for SVE2 support.

What did you see happen?

No HasSVE2 field.

What did you expect to see?

New arm64 chips from AWS/Azure/Google/Nvidia/Alibaba have support for SVE2, by adding this flag, go programs can implement SVE2 optimized code.
@gopherbot gopherbot added this to the Unreleased milestone Apr 21, 2024
@mhr3 mhr3 mentioned this issue Apr 21, 2024
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@gopherbot
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Change https://go.dev/cl/580655 mentions this issue: cpu: add support for sve2 detection

@joedian joedian added the NeedsDecision Feedback is required from experts, contributors, and/or the community before a change can be made. label Apr 23, 2024
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cpu: add support for sve2 detection mhr3/golang-sys
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@mhr3 @gopherbot @mauri870 @joedian