Merge pull request #201 from Bytom/v0.1

[bytom/vapor.git] / vendor / github.com / minio / sha256-simd / cpuid.go

diff --git a/vendor/github.com/minio/sha256-simd/cpuid.go b/vendor/github.com/minio/sha256-simd/cpuid.go
deleted file mode 100644 (file)
index 878ad46..0000000
--- a/vendor/github.com/minio/sha256-simd/cpuid.go
+++ /dev/null
@@ -1,119 +0,0 @@
-// Minio Cloud Storage, (C) 2016 Minio, Inc.
-//
-// 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 sha256
-
-// True when SIMD instructions are available.
-var avx512 bool
-var avx2 bool
-var avx bool
-var sse bool
-var sse2 bool
-var sse3 bool
-var ssse3 bool
-var sse41 bool
-var sse42 bool
-var popcnt bool
-var sha bool
-var armSha = haveArmSha()
-
-func init() {
-       var _xsave bool
-       var _osxsave bool
-       var _avx bool
-       var _avx2 bool
-       var _avx512f bool
-       var _avx512dq bool
-       //      var _avx512pf        bool
-       //      var _avx512er        bool
-       //      var _avx512cd        bool
-       var _avx512bw bool
-       var _avx512vl bool
-       var _sseState bool
-       var _avxState bool
-       var _opmaskState bool
-       var _zmmHI256State bool
-       var _hi16ZmmState bool
-
-       mfi, _, _, _ := cpuid(0)
-
-       if mfi >= 1 {
-               _, _, c, d := cpuid(1)
-
-               sse = (d & (1 << 25)) != 0
-               sse2 = (d & (1 << 26)) != 0
-               sse3 = (c & (1 << 0)) != 0
-               ssse3 = (c & (1 << 9)) != 0
-               sse41 = (c & (1 << 19)) != 0
-               sse42 = (c & (1 << 20)) != 0
-               popcnt = (c & (1 << 23)) != 0
-               _xsave = (c & (1 << 26)) != 0
-               _osxsave = (c & (1 << 27)) != 0
-               _avx = (c & (1 << 28)) != 0
-       }
-
-       if mfi >= 7 {
-               _, b, _, _ := cpuid(7)
-
-               _avx2 = (b & (1 << 5)) != 0
-               _avx512f = (b & (1 << 16)) != 0
-               _avx512dq = (b & (1 << 17)) != 0
-               //              _avx512pf = (b & (1 << 26)) != 0
-               //              _avx512er = (b & (1 << 27)) != 0
-               //              _avx512cd = (b & (1 << 28)) != 0
-               _avx512bw = (b & (1 << 30)) != 0
-               _avx512vl = (b & (1 << 31)) != 0
-               sha = (b & (1 << 29)) != 0
-       }
-
-       // Stop here if XSAVE unsupported or not enabled
-       if !_xsave || !_osxsave {
-               return
-       }
-
-       if _xsave && _osxsave {
-               a, _ := xgetbv(0)
-
-               _sseState = (a & (1 << 1)) != 0
-               _avxState = (a & (1 << 2)) != 0
-               _opmaskState = (a & (1 << 5)) != 0
-               _zmmHI256State = (a & (1 << 6)) != 0
-               _hi16ZmmState = (a & (1 << 7)) != 0
-       } else {
-               _sseState = true
-       }
-
-       // Very unlikely that OS would enable XSAVE and then disable SSE
-       if !_sseState {
-               sse = false
-               sse2 = false
-               sse3 = false
-               ssse3 = false
-               sse41 = false
-               sse42 = false
-       }
-
-       if _avxState {
-               avx = _avx
-               avx2 = _avx2
-       }
-
-       if _opmaskState && _zmmHI256State && _hi16ZmmState {
-               avx512 = (_avx512f &&
-                       _avx512dq &&
-                       _avx512bw &&
-                       _avx512vl)
-       }
-}