diff options
| author | uweigand <uweigand@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-06-07 16:35:27 +0000 |
|---|---|---|
| committer | uweigand <uweigand@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-06-07 16:35:27 +0000 |
| commit | 891e309693dbbf1ddddcf11d50f9bfbc0b3350ce (patch) | |
| tree | bb3a25e110cedc41afc38795fab064c14523fc41 /libstdc++-v3/config | |
| parent | 3e790786cfb2c88061ebc1faad8273489bf3c388 (diff) | |
| download | ppe42-gcc-891e309693dbbf1ddddcf11d50f9bfbc0b3350ce.tar.gz ppe42-gcc-891e309693dbbf1ddddcf11d50f9bfbc0b3350ce.zip | |
2005-06-07 Adrian Straetling <straetling@de.ibm.com>
gcc/ChangeLog:
* config/s390/s390.md: ("UNSPECV_MB", "UNSPECV_CAS"): New constants.
("type"): Add "sem" to 'type' attribute.
("memory_barrier", "*memory_barrier", "sync_compare_and_swapdi",
"sync_compare_and_swapsi", "sync_compare_and_swap_ccdi",
"sync_compare_and_swap_ccsi", "*sync_compare_and_swap_ccdi",
"*sync_compare_and_swap_ccsi"): New patterns.
* config/s390/2064.md: ("z_sem"): New insn_reservation.
* config/s390/2084.md: ("x_sem"): New insn_reservation.
* config/s390/s390.c: (s390_compare_emitted): New global variable.
(s390_emit_compare): Do not emit comparison again after cas.
* config/s390/s390.h (s390_compare_emitted): Declare.
libstdc++/ChangeLog:
* config/cpu/s390/atomicity.h: (__exchange_and_add,
__atomic_add): Use the builtins for atomic memory operations.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@100711 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libstdc++-v3/config')
| -rw-r--r-- | libstdc++-v3/config/cpu/s390/atomicity.h | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/libstdc++-v3/config/cpu/s390/atomicity.h b/libstdc++-v3/config/cpu/s390/atomicity.h index cf903b321f4..5a235940c8c 100644 --- a/libstdc++-v3/config/cpu/s390/atomicity.h +++ b/libstdc++-v3/config/cpu/s390/atomicity.h @@ -34,22 +34,10 @@ namespace __gnu_cxx _Atomic_word __attribute__ ((__unused__)) __exchange_and_add(volatile _Atomic_word* __mem, int __val) - { - register _Atomic_word __old_val, __new_val; - - __asm__ __volatile__ (" l %0,0(%3)\n" - "0: lr %1,%0\n" - " ar %1,%4\n" - " cs %0,%1,0(%3)\n" - " jl 0b" - : "=&d" (__old_val), "=&d" (__new_val), "=m" (*__mem) - : "a" (__mem), "d" (__val), "m" (*__mem) - : "cc", "memory"); - return __old_val; - } + { return __sync_fetch_and_add(__mem, __val); } void __attribute__ ((__unused__)) __atomic_add(volatile _Atomic_word* __mem, int __val) - { __exchange_and_add(__mem, __val); } + { __sync_fetch_and_add(__mem, __val); } } // namespace __gnu_cxx |
