blake2b: drop Go 1.6, Go 1.8 compatibility
Other packages already dropped compatibility with go < 1.12, so it
should be safe to remove it for this package as well.
Change-Id: I7e894fd11d2e7d1fe28c647bd921399a9a6e30d0
GitHub-Last-Rev: 2b4f576a19338f185e79f39cbfd476573b986369
GitHub-Pull-Request: golang/crypto#240
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/448240
Run-TryBot: Nicola Murino <nicola.murino@gmail.com>
Reviewed-by: Joedian Reid <joedian@golang.org>
Reviewed-by: Nicola Murino <nicola.murino@gmail.com>
Commit-Queue: Nicola Murino <nicola.murino@gmail.com>
Auto-Submit: Nicola Murino <nicola.murino@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
diff --git a/blake2b/blake2bAVX2_amd64.go b/blake2b/blake2bAVX2_amd64.go
index 4f506f8..199c21d 100644
--- a/blake2b/blake2bAVX2_amd64.go
+++ b/blake2b/blake2bAVX2_amd64.go
@@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-//go:build go1.7 && amd64 && gc && !purego
+//go:build amd64 && gc && !purego
package blake2b
diff --git a/blake2b/blake2bAVX2_amd64.s b/blake2b/blake2bAVX2_amd64.s
index 353bb7c..9ae8206 100644
--- a/blake2b/blake2bAVX2_amd64.s
+++ b/blake2b/blake2bAVX2_amd64.s
@@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-//go:build go1.7 && amd64 && gc && !purego
+//go:build amd64 && gc && !purego
#include "textflag.h"
diff --git a/blake2b/blake2b_amd64.go b/blake2b/blake2b_amd64.go
deleted file mode 100644
index 1d0770a..0000000
--- a/blake2b/blake2b_amd64.go
+++ /dev/null
@@ -1,24 +0,0 @@
-// 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.
-
-//go:build !go1.7 && amd64 && gc && !purego
-
-package blake2b
-
-import "golang.org/x/sys/cpu"
-
-func init() {
- useSSE4 = cpu.X86.HasSSE41
-}
-
-//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 useSSE4 {
- hashBlocksSSE4(h, c, flag, blocks)
- } else {
- hashBlocksGeneric(h, c, flag, blocks)
- }
-}
diff --git a/blake2b/register.go b/blake2b/register.go
index d9fcac3..54e446e 100644
--- a/blake2b/register.go
+++ b/blake2b/register.go
@@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-//go:build go1.9
-
package blake2b
import (
