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37 lines
914 B
Go
37 lines
914 B
Go
// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build go1.7 && amd64 && gc && !purego
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package blake2b
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import "golang.org/x/sys/cpu"
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func init() {
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useAVX2 = cpu.X86.HasAVX2
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useAVX = cpu.X86.HasAVX
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useSSE4 = cpu.X86.HasSSE41
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}
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//go:noescape
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func hashBlocksAVX2(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
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//go:noescape
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func hashBlocksAVX(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
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//go:noescape
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func hashBlocksSSE4(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
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func hashBlocks(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte) {
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switch {
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case useAVX2:
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hashBlocksAVX2(h, c, flag, blocks)
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case useAVX:
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hashBlocksAVX(h, c, flag, blocks)
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case useSSE4:
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hashBlocksSSE4(h, c, flag, blocks)
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default:
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hashBlocksGeneric(h, c, flag, blocks)
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}
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}
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