Merge pull request #201 from Bytom/v0.1

[bytom/vapor.git] / vendor / github.com / minio / blake2b-simd / cpuid.go

diff --git a/vendor/github.com/minio/blake2b-simd/cpuid.go b/vendor/github.com/minio/blake2b-simd/cpuid.go
deleted file mode 100644 (file)
index a9f9550..0000000
--- a/vendor/github.com/minio/blake2b-simd/cpuid.go
+++ /dev/null
@@ -1,60 +0,0 @@
-// +build 386,!gccgo amd64,!gccgo
-
-// Copyright 2016 Frank Wessels <fwessels@xs4all.nl>
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-
-package blake2b
-
-func cpuid(op uint32) (eax, ebx, ecx, edx uint32)
-func cpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32)
-func xgetbv(index uint32) (eax, edx uint32)
-
-// True when SIMD instructions are available.
-var avx2 = haveAVX2()
-var avx = haveAVX()
-var ssse3 = haveSSSE3()
-
-// haveAVX returns true when there is AVX support
-func haveAVX() bool {
-       _, _, c, _ := cpuid(1)
-
-       // Check XGETBV, OXSAVE and AVX bits
-       if c&(1<<26) != 0 && c&(1<<27) != 0 && c&(1<<28) != 0 {
-               // Check for OS support
-               eax, _ := xgetbv(0)
-               return (eax & 0x6) == 0x6
-       }
-       return false
-}
-
-// haveAVX2 returns true when there is AVX2 support
-func haveAVX2() bool {
-       mfi, _, _, _ := cpuid(0)
-
-       // Check AVX2, AVX2 requires OS support, but BMI1/2 don't.
-       if mfi >= 7 && haveAVX() {
-               _, ebx, _, _ := cpuidex(7, 0)
-               return (ebx & 0x00000020) != 0
-       }
-       return false
-}
-
-// haveSSSE3 returns true when there is SSSE3 support
-func haveSSSE3() bool {
-
-       _, _, c, _ := cpuid(1)
-
-       return (c & 0x00000200) != 0
-}