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vendor x/sys/cpu and update x/crypto/blake2b (#5870)

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This change updates the vendor'd x/crypto/blake2b package and
adds x/sys/cpu.

This change fixes an issue for Go1.11 affecting x/crypto/blake2b
since G1.11 removes the runtime-internal functions `suports_avx()` and
`supports_avx2()`.
This commit is contained in:
Andreas Auernhammer
2018-05-01 07:46:56 +02:00
committed by Nitish Tiwari
parent 5f9041571f
commit ca8520fb31
15 changed files with 261 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files
vendor/golang.org/x/crypto/blake2b/blake2bAVX2_amd64.go
Generated Vendored
+10 -16
View File
@@ -6,21 +6,14 @@
package blake2b
import "golang.org/x/sys/cpu"
func init() {
useAVX2 = supportsAVX2()
useAVX = supportsAVX()
useSSE4 = supportsSSE4()
useAVX2 = cpu.X86.HasAVX2
useAVX = cpu.X86.HasAVX
useSSE4 = cpu.X86.HasSSE41
}
//go:noescape
func supportsSSE4() bool
//go:noescape
func supportsAVX() bool
//go:noescape
func supportsAVX2() bool
//go:noescape
func hashBlocksAVX2(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
@@ -31,13 +24,14 @@ func hashBlocksAVX(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
func hashBlocksSSE4(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
func hashBlocks(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte) {
if useAVX2 {
switch {
case useAVX2:
hashBlocksAVX2(h, c, flag, blocks)
} else if useAVX {
case useAVX:
hashBlocksAVX(h, c, flag, blocks)
} else if useSSE4 {
case useSSE4:
hashBlocksSSE4(h, c, flag, blocks)
} else {
default:
hashBlocksGeneric(h, c, flag, blocks)
}
}