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sync/atomic: fix LoadInt32 on ARM

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R0 is clobbered after cas,
while R1 preserves its value.

R=golang-dev
CC=golang-dev
https://golang.org/cl/4782042
This commit is contained in:
Dmitriy Vyukov 2011-07-19 22:10:07 +10:00 committed by Rob Pike
parent 3bbeef5201
commit 0b200b4d09
1 changed files with 1 additions and 1 deletions
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2
src/pkg/sync/atomic/asm_linux_arm.s
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@ -94,5 +94,5 @@ loadloop1:
MOVW R0, R1
BL cas<>(SB)
BCC loadloop1
MOVW R0, val+4(FP)
MOVW R1, val+4(FP)
RET