Source file src/golang.org/x/crypto/blake2s/blake2s_amd64.go

Documentation: golang.org/x/crypto/blake2s

     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 amd64 && gc && !purego
     6  
     7  package blake2s
     8  
     9  import "golang.org/x/sys/cpu"
    10  
    11  var (
    12  	useSSE4  = cpu.X86.HasSSE41
    13  	useSSSE3 = cpu.X86.HasSSSE3
    14  	useSSE2  = cpu.X86.HasSSE2
    15  )
    16  
    17  //go:noescape
    18  func hashBlocksSSE2(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
    19  
    20  //go:noescape
    21  func hashBlocksSSSE3(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
    22  
    23  //go:noescape
    24  func hashBlocksSSE4(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
    25  
    26  func hashBlocks(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte) {
    27  	switch {
    28  	case useSSE4:
    29  		hashBlocksSSE4(h, c, flag, blocks)
    30  	case useSSSE3:
    31  		hashBlocksSSSE3(h, c, flag, blocks)
    32  	case useSSE2:
    33  		hashBlocksSSE2(h, c, flag, blocks)
    34  	default:
    35  		hashBlocksGeneric(h, c, flag, blocks)
    36  	}
    37  }
    38  

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