diff options
Diffstat (limited to 'src/internal/bytealg/count_amd64.s')
| -rw-r--r-- | src/internal/bytealg/count_amd64.s | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/internal/bytealg/count_amd64.s b/src/internal/bytealg/count_amd64.s index fa864c4c76..efb17f84b7 100644 --- a/src/internal/bytealg/count_amd64.s +++ b/src/internal/bytealg/count_amd64.s @@ -3,12 +3,15 @@ // license that can be found in the LICENSE file. #include "go_asm.h" +#include "asm_amd64.h" #include "textflag.h" TEXT ·Count(SB),NOSPLIT,$0-40 +#ifndef hasPOPCNT CMPB internal∕cpu·X86+const_offsetX86HasPOPCNT(SB), $1 JEQ 2(PC) JMP ·countGeneric(SB) +#endif MOVQ b_base+0(FP), SI MOVQ b_len+8(FP), BX MOVB c+24(FP), AL @@ -16,9 +19,11 @@ TEXT ·Count(SB),NOSPLIT,$0-40 JMP countbody<>(SB) TEXT ·CountString(SB),NOSPLIT,$0-32 +#ifndef hasPOPCNT CMPB internal∕cpu·X86+const_offsetX86HasPOPCNT(SB), $1 JEQ 2(PC) JMP ·countGenericString(SB) +#endif MOVQ s_base+0(FP), SI MOVQ s_len+8(FP), BX MOVB c+16(FP), AL @@ -151,8 +156,10 @@ endofpage: RET avx2: +#ifndef hasAVX2 CMPB internal∕cpu·X86+const_offsetX86HasAVX2(SB), $1 JNE sse +#endif MOVD AX, X0 LEAQ -32(SI)(BX*1), R11 VPBROADCASTB X0, Y1 |