asm_amd64.h

Documentation: runtime

     1// Copyright 2021 The Go Authors. All rights reserved.
     2// Use of this source code is governed by a BSD-style
     3// license that can be found in the LICENSE file.
     4
     5// Define features that are guaranteed to be supported by setting the AMD64 variable.
     6// If a feature is supported, there's no need to check it at runtime every time.
     7
     8#ifdef GOAMD64_v2
     9#define hasPOPCNT
    10#define hasSSE42
    11#endif
    12
    13#ifdef GOAMD64_v3
    14#define hasAVX
    15#define hasAVX2
    16#define hasPOPCNT
    17#define hasSSE42
    18#endif
    19
    20#ifdef GOAMD64_v4
    21#define hasAVX
    22#define hasAVX2
    23#define hasAVX512F
    24#define hasAVX512BW
    25#define hasAVX512VL
    26#define hasPOPCNT
    27#define hasSSE42
    28#endif
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