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asm_amd64.h
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// 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_v2 #define hasPOPCNT #define hasSSE42 #endif #ifdef GOAMD64_v3 #define hasAVX #define hasAVX2 #define hasPOPCNT #define hasSSE42 #endif #ifdef GOAMD64_v4 #define hasAVX #define hasAVX2 #define hasAVX512F #define hasAVX512BW #define hasAVX512VL #define hasPOPCNT #define hasSSE42 #endif