qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-22 03:14:41 -07:00
Code Releases Activity

internal/cpu: Prefer XOR CX, CX over MOV 0, CX in xgetbv

Browse Source 
This makes the code consistent with the gccgo implementation.
This commit is contained in:
Andrew Gaul 2021-07-13 20:00:01 +09:00
parent a98589711d
commit 685cb9af0d
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/internal/cpu/cpu_x86.s
View File

@ -20,7 +20,7 @@ TEXT ·cpuid(SB), NOSPLIT, $0-24
// func xgetbv() (eax, edx uint32) // func xgetbv() (eax, edx uint32)
TEXT ·xgetbv(SB),NOSPLIT,$0-8 TEXT ·xgetbv(SB),NOSPLIT,$0-8
MOVL $0, CX XORL CX, CX
XGETBV XGETBV
MOVL AX, eax+0(FP) MOVL AX, eax+0(FP)
MOVL DX, edx+4(FP) MOVL DX, edx+4(FP)