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Removed explicit register use (thanks to Howard Hinnant)

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[SVN r30585]
This commit is contained in:
Peter Dimov
2005-08-15 19:44:15 +00:00
parent 0db2a88403
commit 6b3f961542
1 changed files with 20 additions and 14 deletions
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34
include/boost/detail/sp_counted_base_cw_ppc.hpp
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@@ -34,55 +34,61 @@ namespace detail
inline void atomic_increment( register long * pw )
{
register int a;
asm
{
loop:
lwarx r4, 0, r3
addi r4, r4, 1
stwcx. r4, 0, r3
lwarx a, 0, pw
addi a, a, 1
stwcx. a, 0, pw
bne- loop
}
}
inline long atomic_decrement( register long * pw )
{
register int a;
asm
{
sync
loop:
lwarx r4, 0, r3
addi r4, r4, -1
stwcx. r4, 0, r3
lwarx a, 0, pw
addi a, a, -1
stwcx. a, 0, pw
bne- loop
mr r3, r4
isync
}
return a;
}
inline long atomic_conditional_increment( register long * pw )
{
register int a;
asm
{
loop:
lwarx r4, 0, r3
cmpwi r4, 0
lwarx a, 0, pw
cmpwi a, 0
beq store
addi r4, r4, 1
addi a, a, 1
store:
stwcx. r4, 0, r3
stwcx. a, 0, pw
bne- loop
mr r3, r4
}
return a;
}
class sp_counted_base