go/src/simd/cpu.go
Junyang Shao 1ee72a15a3 [dev.simd] internal/cpu: add GFNI feature check
This CL amends HasAVX512 flag with GFNI check.

This is needed because our SIMD API supports Galois Field operations.

Change-Id: I3e957b7b2215d2b7b6b8a7a0ca3e2e60d453b2e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/685295
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-07-01 13:51:57 -07:00

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660 B
Go

// Copyright 2025 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build goexperiment.simd
// The build condition == if the experiment is not on, cmd/api TestCheck will see this and complain
// see also go/doc/comment, where "simd" is inserted to the package list of the experiment is not on.
package simd
import "internal/cpu"
// HasAVX512GFNI checks AVX512 CPU feature F+CD+BW+DQ+VL+GFNI.
func HasAVX512GFNI() bool {
return cpu.X86.HasAVX512GFNI
}
// HasAVX512 checks AVX512 CPU feature F+CD+BW+DQ+VL.
func HasAVX512() bool {
return cpu.X86.HasAVX512
}