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authorDongHun Kwak <dh0128.kwak@samsung.com>2017-09-13 11:08:07 +0900
committerDongHun Kwak <dh0128.kwak@samsung.com>2017-09-13 11:09:00 +0900
commitb5c87084afaef42b2d058f68091be31988a6a874 (patch)
treeadef9a65870a41181687e11d57fdf98e7629de3c /boost/atomic/detail/ops_gcc_x86_dcas.hpp
parent34bd32e225e2a8a94104489b31c42e5801cc1f4a (diff)
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Imported Upstream version 1.64.0upstream/1.64.0
Change-Id: Id9212edd016dd55f21172c427aa7894d1d24148b Signed-off-by: DongHun Kwak <dh0128.kwak@samsung.com>
Diffstat (limited to 'boost/atomic/detail/ops_gcc_x86_dcas.hpp')
-rw-r--r--boost/atomic/detail/ops_gcc_x86_dcas.hpp14
1 files changed, 8 insertions, 6 deletions
diff --git a/boost/atomic/detail/ops_gcc_x86_dcas.hpp b/boost/atomic/detail/ops_gcc_x86_dcas.hpp
index 2f51182e5a..e356e8cfbd 100644
--- a/boost/atomic/detail/ops_gcc_x86_dcas.hpp
+++ b/boost/atomic/detail/ops_gcc_x86_dcas.hpp
@@ -73,6 +73,7 @@ struct gcc_dcas_x86
{
#if !defined(BOOST_ATOMIC_DETAIL_NO_ASM_IMPLIED_ZERO_DISPLACEMENTS)
#if defined(__PIC__)
+ uint32_t v_lo = (uint32_t)v;
uint32_t scratch;
__asm__ __volatile__
(
@@ -84,8 +85,8 @@ struct gcc_dcas_x86
"1: lock; cmpxchg8b %[dest]\n\t"
"jne 1b\n\t"
"movl %[scratch], %%ebx\n\t"
- : [scratch] "=m" (scratch), [dest] "=o" (storage)
- : [value_lo] "a" ((uint32_t)v), "c" ((uint32_t)(v >> 32))
+ : [scratch] "=m" (scratch), [dest] "=o" (storage), [value_lo] "+a" (v_lo)
+ : "c" ((uint32_t)(v >> 32))
: BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC_COMMA "edx", "memory"
);
#else // defined(__PIC__)
@@ -103,6 +104,7 @@ struct gcc_dcas_x86
#endif // defined(__PIC__)
#else // !defined(BOOST_ATOMIC_DETAIL_NO_ASM_IMPLIED_ZERO_DISPLACEMENTS)
#if defined(__PIC__)
+ uint32_t v_lo = (uint32_t)v;
uint32_t scratch;
__asm__ __volatile__
(
@@ -115,11 +117,11 @@ struct gcc_dcas_x86
"jne 1b\n\t"
"movl %[scratch], %%ebx\n\t"
#if !defined(BOOST_ATOMIC_DETAIL_NO_ASM_CONSTRAINT_ALTERNATIVES)
- : [scratch] "=m,m" (scratch)
- : [value_lo] "a,a" ((uint32_t)v), "c,c" ((uint32_t)(v >> 32)), [dest] "D,S" (&storage)
+ : [scratch] "=m,m" (scratch), [value_lo] "+a,a" (v_lo)
+ : "c,c" ((uint32_t)(v >> 32)), [dest] "D,S" (&storage)
#else
- : [scratch] "=m" (scratch)
- : [value_lo] "a" ((uint32_t)v), "c" ((uint32_t)(v >> 32)), [dest] "D" (&storage)
+ : [scratch] "=m" (scratch), [value_lo] "+a" (v_lo)
+ : "c" ((uint32_t)(v >> 32)), [dest] "D" (&storage)
#endif
: BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC_COMMA "edx", "memory"
);