1// Copyright 2016 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//go:build 386 && gc && !purego 6// +build 386,gc,!purego 7 8package blake2s 9 10import "golang.org/x/sys/cpu" 11 12var ( 13 useSSE4 = false 14 useSSSE3 = cpu.X86.HasSSSE3 15 useSSE2 = cpu.X86.HasSSE2 16) 17 18//go:noescape 19func hashBlocksSSE2(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte) 20 21//go:noescape 22func hashBlocksSSSE3(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte) 23 24func hashBlocks(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte) { 25 switch { 26 case useSSSE3: 27 hashBlocksSSSE3(h, c, flag, blocks) 28 case useSSE2: 29 hashBlocksSSE2(h, c, flag, blocks) 30 default: 31 hashBlocksGeneric(h, c, flag, blocks) 32 } 33} 34