init - add project files

vendor/github.com/minio/highwayhash/highwayhash_amd64.go

@@ -0,0 +1,70 @@
+// Copyright (c) 2017 Minio Inc. All rights reserved.
+// Use of this source code is governed by a license that can be
+// found in the LICENSE file.
+
+//go:build amd64 && !gccgo && !appengine && !nacl && !noasm
+// +build amd64,!gccgo,!appengine,!nacl,!noasm
+
+package highwayhash
+
+import "golang.org/x/sys/cpu"
+
+var (
+	useSSE4 = cpu.X86.HasSSE41
+	useAVX2 = cpu.X86.HasAVX2
+	useNEON = false
+	useSVE  = false
+	useSVE2 = false
+	useVMX  = false
+)
+
+//go:noescape
+func initializeSSE4(state *[16]uint64, key []byte)
+
+//go:noescape
+func initializeAVX2(state *[16]uint64, key []byte)
+
+//go:noescape
+func updateSSE4(state *[16]uint64, msg []byte)
+
+//go:noescape
+func updateAVX2(state *[16]uint64, msg []byte)
+
+//go:noescape
+func finalizeSSE4(out []byte, state *[16]uint64)
+
+//go:noescape
+func finalizeAVX2(out []byte, state *[16]uint64)
+
+func initialize(state *[16]uint64, key []byte) {
+	switch {
+	case useAVX2:
+		initializeAVX2(state, key)
+	case useSSE4:
+		initializeSSE4(state, key)
+	default:
+		initializeGeneric(state, key)
+	}
+}
+
+func update(state *[16]uint64, msg []byte) {
+	switch {
+	case useAVX2:
+		updateAVX2(state, msg)
+	case useSSE4:
+		updateSSE4(state, msg)
+	default:
+		updateGeneric(state, msg)
+	}
+}
+
+func finalize(out []byte, state *[16]uint64) {
+	switch {
+	case useAVX2:
+		finalizeAVX2(out, state)
+	case useSSE4:
+		finalizeSSE4(out, state)
+	default:
+		finalizeGeneric(out, state)
+	}
+}