Source file src/golang.org/x/crypto/blake2b/blake2bAVX2_amd64.go

Documentation: golang.org/x/crypto/blake2b

     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 blake2b
     8  
     9  import "golang.org/x/sys/cpu"
    10  
    11  func init() {
    12  	useAVX2 = cpu.X86.HasAVX2
    13  	useAVX = cpu.X86.HasAVX
    14  	useSSE4 = cpu.X86.HasSSE41
    15  }
    16  
    17  //go:noescape
    18  func hashBlocksAVX2(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
    19  
    20  //go:noescape
    21  func hashBlocksAVX(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
    22  
    23  //go:noescape
    24  func hashBlocksSSE4(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
    25  
    26  func hashBlocks(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte) {
    27  	switch {
    28  	case useAVX2:
    29  		hashBlocksAVX2(h, c, flag, blocks)
    30  	case useAVX:
    31  		hashBlocksAVX(h, c, flag, blocks)
    32  	case useSSE4:
    33  		hashBlocksSSE4(h, c, flag, blocks)
    34  	default:
    35  		hashBlocksGeneric(h, c, flag, blocks)
    36  	}
    37  }
    38  

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