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remove redundant MOV of old value to temp reg

This commit is contained in:
Mauri de Souza Meneguzzo 2023-09-29 21:48:10 -03:00
parent 1c981fcdce
commit cf3fb0dce6
1 changed files with 12 additions and 16 deletions
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28
src/runtime/internal/atomic/atomic_ppc64x.s
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@ -368,11 +368,10 @@ TEXT ·Or32(SB), NOSPLIT, $0-20
LWSYNC
again:
LWAR (R3), R6
MOVW R6, R7
OR R4, R6
STWCCC R6, (R3)
OR R4, R6, R7
STWCCC R7, (R3)
BNE again
MOVW R7, ret+16(FP)
MOVW R6, ret+16(FP)
RET
// func And32(addr *uint32, v uint32) old uint32
@ -382,11 +381,10 @@ TEXT ·And32(SB), NOSPLIT, $0-20
LWSYNC
again:
LWAR (R3),R6
MOVW R6, R7
AND R4, R6
STWCCC R6, (R3)
AND R4, R6, R7
STWCCC R7, (R3)
BNE again
MOVW R7, ret+16(FP)
MOVW R6, ret+16(FP)
RET
// func Or64(addr *uint64, v uint64) old uint64
@ -396,11 +394,10 @@ TEXT ·Or64(SB), NOSPLIT, $0-24
LWSYNC
again:
LDAR (R3), R6
MOVD R6, R7
OR R4, R6
STDCCC R6, (R3)
OR R4, R6, R7
STDCCC R7, (R3)
BNE again
MOVD R7, ret+16(FP)
MOVD R6, ret+16(FP)
RET
// func And64(addr *uint64, v uint64) old uint64
@ -410,11 +407,10 @@ TEXT ·And64(SB), NOSPLIT, $0-24
LWSYNC
again:
LDAR (R3),R6
MOVD R6, R7
AND R4, R6
STDCCC R6, (R3)
AND R4, R6, R7
STDCCC R7, (R3)
BNE again
MOVD R7, ret+16(FP)
MOVD R6, ret+16(FP)
RET
// func Anduintptr(addr *uintptr, v uintptr) old uintptr