storj.io/minio@v0.0.0-20230509071714-0cbc90f649b1/pkg/argon2/blamka_amd64.go (about)

     1  // Copyright 2017 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 && !gccgo && !appengine
     6  // +build amd64,!gccgo,!appengine
     7  
     8  package argon2
     9  
    10  import "golang.org/x/sys/cpu"
    11  
    12  func init() {
    13  	useSSE4 = cpu.X86.HasSSE41
    14  }
    15  
    16  //go:noescape
    17  func mixBlocksSSE2(out, a, b, c *block)
    18  
    19  //go:noescape
    20  func xorBlocksSSE2(out, a, b, c *block)
    21  
    22  //go:noescape
    23  func blamkaSSE4(b *block)
    24  
    25  func processBlockSSE(out, in1, in2 *block, xor bool) {
    26  	var t block
    27  	mixBlocksSSE2(&t, in1, in2, &t)
    28  	if useSSE4 {
    29  		blamkaSSE4(&t)
    30  	} else {
    31  		for i := 0; i < blockLength; i += 16 {
    32  			blamkaGeneric(
    33  				&t[i+0], &t[i+1], &t[i+2], &t[i+3],
    34  				&t[i+4], &t[i+5], &t[i+6], &t[i+7],
    35  				&t[i+8], &t[i+9], &t[i+10], &t[i+11],
    36  				&t[i+12], &t[i+13], &t[i+14], &t[i+15],
    37  			)
    38  		}
    39  		for i := 0; i < blockLength/8; i += 2 {
    40  			blamkaGeneric(
    41  				&t[i], &t[i+1], &t[16+i], &t[16+i+1],
    42  				&t[32+i], &t[32+i+1], &t[48+i], &t[48+i+1],
    43  				&t[64+i], &t[64+i+1], &t[80+i], &t[80+i+1],
    44  				&t[96+i], &t[96+i+1], &t[112+i], &t[112+i+1],
    45  			)
    46  		}
    47  	}
    48  	if xor {
    49  		xorBlocksSSE2(out, in1, in2, &t)
    50  	} else {
    51  		mixBlocksSSE2(out, in1, in2, &t)
    52  	}
    53  }
    54  
    55  func processBlock(out, in1, in2 *block) {
    56  	processBlockSSE(out, in1, in2, false)
    57  }
    58  
    59  func processBlockXOR(out, in1, in2 *block) {
    60  	processBlockSSE(out, in1, in2, true)
    61  }