1 files changed, 45 insertions, 0 deletions
diff --git a/vendor/golang.org/x/crypto/blake2b/blake2bAVX2_amd64.go b/vendor/golang.org/x/crypto/blake2b/blake2bAVX2_amd64.go
new file mode 100644
index 000000000..a1e08d7ef
--- /dev/null
+++ b/vendor/golang.org/x/crypto/blake2b/blake2bAVX2_amd64.go
@@ -0,0 +1,45 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build go1.7,amd64,!gccgo,!appengine
+
+package blake2b
+
+import _ "unsafe"
+
+//go:linkname x86_HasAVX internal/cpu.X86.HasAVX
+var x86_HasAVX bool
+
+//go:linkname x86_HasAVX2 internal/cpu.X86.HasAVX2
+var x86_HasAVX2 bool
+
+//go:linkname x86_HasAVX internal/cpu.X86.HasSSE4
+var x86_HasSSE4 bool
+
+func init() {
+	useAVX2 = x86_HasAVX2
+	useAVX = x86_HasAVX
+	useSSE4 = x86_HasSSE4
+}
+
+//go:noescape
+func hashBlocksAVX2(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
+
+//go:noescape
+func hashBlocksAVX(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
+
+//go:noescape
+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 {
+		hashBlocksAVX2(h, c, flag, blocks)
+	} else if useAVX {
+		hashBlocksAVX(h, c, flag, blocks)
+	} else if useSSE4 {
+		hashBlocksSSE4(h, c, flag, blocks)
+	} else {
+		hashBlocksGeneric(h, c, flag, blocks)
+	}
+}