diff options
Diffstat (limited to 'vendor/golang.org/x/sys/cpu/cpu.go')
| -rw-r--r-- | vendor/golang.org/x/sys/cpu/cpu.go | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/vendor/golang.org/x/sys/cpu/cpu.go b/vendor/golang.org/x/sys/cpu/cpu.go index 2d1fc12fb..3d88f8667 100644 --- a/vendor/golang.org/x/sys/cpu/cpu.go +++ b/vendor/golang.org/x/sys/cpu/cpu.go @@ -6,6 +6,9 @@ // various CPU architectures. package cpu +// CacheLinePad is used to pad structs to avoid false sharing. +type CacheLinePad struct{ _ [cacheLineSize]byte } + // X86 contains the supported CPU features of the // current X86/AMD64 platform. If the current platform // is not X86/AMD64 then all feature flags are false. @@ -14,7 +17,7 @@ package cpu // and HasAVX2 are only set if the OS supports XMM and YMM // registers in addition to the CPUID feature bit being set. var X86 struct { - _ [cacheLineSize]byte + _ CacheLinePad HasAES bool // AES hardware implementation (AES NI) HasADX bool // Multi-precision add-carry instruction extensions HasAVX bool // Advanced vector extension @@ -31,5 +34,5 @@ var X86 struct { HasSSSE3 bool // Supplemental streaming SIMD extension 3 HasSSE41 bool // Streaming SIMD extension 4 and 4.1 HasSSE42 bool // Streaming SIMD extension 4 and 4.2 - _ [cacheLineSize]byte + _ CacheLinePad } |