| // Copyright 2021 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. | |
| // Define features that are guaranteed to be supported by setting the AMD64 variable. | |
| // If a feature is supported, there's no need to check it at runtime every time. | |
| #ifdef GOAMD64_v3 | |
| #define hasAVX2 | |
| #endif | |
| #ifdef GOAMD64_v4 | |
| #define hasAVX2 | |
| #endif |