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| author | Andrew Pinski <pinskia@physics.uc.edu> | 2003-12-25 02:04:06 +0000 |
|---|---|---|
| committer | Andrew Pinski <pinskia@gcc.gnu.org> | 2003-12-24 18:04:06 -0800 |
| commit | a51c409779289f065ed208581ec67b3d3fac0de5 (patch) | |
| tree | 658fd183c73265e1eb13428ece1e5efd19af9235 /libstdc++-v3/config/cpu | |
| parent | 015fde0ae552f0902dceab263e1fcee069248524 (diff) | |
| download | gcc-a51c409779289f065ed208581ec67b3d3fac0de5.zip gcc-a51c409779289f065ed208581ec67b3d3fac0de5.tar.gz gcc-a51c409779289f065ed208581ec67b3d3fac0de5.tar.bz2 | |
re PR libstdc++/13480 (bits/atomicity.h:56: warning: read-write constraint does not allow a register)
2003-12-24 Andrew Pinski <pinskia@physics.uc.edu>
PR libstdc++/13480
* config/cpu/i486/atomicity.h: Split up read-write memory operand.
From-SVN: r75016
Diffstat (limited to 'libstdc++-v3/config/cpu')
| -rw-r--r-- | libstdc++-v3/config/cpu/i386/atomicity.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/libstdc++-v3/config/cpu/i386/atomicity.h b/libstdc++-v3/config/cpu/i386/atomicity.h index 70d38fe..8905d78 100644 --- a/libstdc++-v3/config/cpu/i386/atomicity.h +++ b/libstdc++-v3/config/cpu/i386/atomicity.h @@ -52,8 +52,9 @@ __exchange_and_add(volatile _Atomic_word* __mem, int __val) /* obtain the atomic exchange/add spin lock */ do { __asm__ __volatile__ ("xchg{l} {%0,%1|%1,%0}" - : "+m" (__Atomicity_lock<0>::_S_atomicity_lock), - "+r" (__tmp)); + : "m" (__Atomicity_lock<0>::_S_atomicity_lock), + "+r" (__tmp) + : "m" (__Atomicity_lock<0>::_S_atomicity_lock)); } while (__tmp); __result = *__mem; |