| // Copyright 2017 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 !purego | |
| package sha256 | |
| import "internal/cpu" | |
| var useAVX2 = cpu.X86.HasAVX2 && cpu.X86.HasBMI2 | |
| var useSHA = useAVX2 && cpu.X86.HasSHA |