diff options
Diffstat (limited to 'vendor/golang.org/x/sys/cpu/cpu_x86.s')
| -rw-r--r-- | vendor/golang.org/x/sys/cpu/cpu_x86.s | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/vendor/golang.org/x/sys/cpu/cpu_x86.s b/vendor/golang.org/x/sys/cpu/cpu_x86.s index b748ba52f..39acab2ff 100644 --- a/vendor/golang.org/x/sys/cpu/cpu_x86.s +++ b/vendor/golang.org/x/sys/cpu/cpu_x86.s @@ -26,27 +26,3 @@ TEXT ·xgetbv(SB),NOSPLIT,$0-8 MOVL AX, eax+0(FP) MOVL DX, edx+4(FP) RET - -// func darwinSupportsAVX512() bool -TEXT ·darwinSupportsAVX512(SB), NOSPLIT, $0-1 - MOVB $0, ret+0(FP) // default to false -#ifdef GOOS_darwin // return if not darwin -#ifdef GOARCH_amd64 // return if not amd64 -// These values from: -// https://github.com/apple/darwin-xnu/blob/xnu-4570.1.46/osfmk/i386/cpu_capabilities.h -#define commpage64_base_address 0x00007fffffe00000 -#define commpage64_cpu_capabilities64 (commpage64_base_address+0x010) -#define commpage64_version (commpage64_base_address+0x01E) -#define hasAVX512F 0x0000004000000000 - MOVQ $commpage64_version, BX - CMPW (BX), $13 // cpu_capabilities64 undefined in versions < 13 - JL no_avx512 - MOVQ $commpage64_cpu_capabilities64, BX - MOVQ $hasAVX512F, CX - TESTQ (BX), CX - JZ no_avx512 - MOVB $1, ret+0(FP) -no_avx512: -#endif -#endif - RET |