diff options
author | Frédéric Guillot <fred@miniflux.net> | 2018-08-26 16:43:53 -0700 |
---|---|---|
committer | Frédéric Guillot <fred@miniflux.net> | 2018-08-26 16:43:53 -0700 |
commit | a3f3f51c60e91f22cc57ecc23cf828421d46b6b7 (patch) | |
tree | e037378ae0ca1f09cfb0eb46e289f28f857c2aed /vendor/golang.org/x/sys/cpu/cpu_x86.go | |
parent | a9e9c347f4d385b4a297a45be96cddfc3a1c7814 (diff) |
Migrate to go modules (Go 1.11)
Diffstat (limited to 'vendor/golang.org/x/sys/cpu/cpu_x86.go')
-rw-r--r-- | vendor/golang.org/x/sys/cpu/cpu_x86.go | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/vendor/golang.org/x/sys/cpu/cpu_x86.go b/vendor/golang.org/x/sys/cpu/cpu_x86.go deleted file mode 100644 index 71e288b..0000000 --- a/vendor/golang.org/x/sys/cpu/cpu_x86.go +++ /dev/null @@ -1,55 +0,0 @@ -// Copyright 2018 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 386 amd64 amd64p32 - -package cpu - -const cacheLineSize = 64 - -func init() { - maxID, _, _, _ := cpuid(0, 0) - - if maxID < 1 { - return - } - - _, _, ecx1, edx1 := cpuid(1, 0) - X86.HasSSE2 = isSet(26, edx1) - - X86.HasSSE3 = isSet(0, ecx1) - X86.HasPCLMULQDQ = isSet(1, ecx1) - X86.HasSSSE3 = isSet(9, ecx1) - X86.HasFMA = isSet(12, ecx1) - X86.HasSSE41 = isSet(19, ecx1) - X86.HasSSE42 = isSet(20, ecx1) - X86.HasPOPCNT = isSet(23, ecx1) - X86.HasAES = isSet(25, ecx1) - X86.HasOSXSAVE = isSet(27, ecx1) - - osSupportsAVX := false - // For XGETBV, OSXSAVE bit is required and sufficient. - if X86.HasOSXSAVE { - eax, _ := xgetbv() - // Check if XMM and YMM registers have OS support. - osSupportsAVX = isSet(1, eax) && isSet(2, eax) - } - - X86.HasAVX = isSet(28, ecx1) && osSupportsAVX - - if maxID < 7 { - return - } - - _, ebx7, _, _ := cpuid(7, 0) - X86.HasBMI1 = isSet(3, ebx7) - X86.HasAVX2 = isSet(5, ebx7) && osSupportsAVX - X86.HasBMI2 = isSet(8, ebx7) - X86.HasERMS = isSet(9, ebx7) - X86.HasADX = isSet(19, ebx7) -} - -func isSet(bitpos uint, value uint32) bool { - return value&(1<<bitpos) != 0 -} |