diff options
Diffstat (limited to 'sysdeps/ia64')
| -rw-r--r-- | sysdeps/ia64/bits/atomic.h | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/sysdeps/ia64/bits/atomic.h b/sysdeps/ia64/bits/atomic.h index 68d79fa9ec..b6522b3272 100644 --- a/sysdeps/ia64/bits/atomic.h +++ b/sysdeps/ia64/bits/atomic.h @@ -75,23 +75,26 @@ typedef uintmax_t uatomic_max_t; /* Atomically store newval and return the old value. */ #define atomic_exchange(mem, value) \ - __sync_lock_test_and_set_si (mem, value) + ({ __typeof (*mem) __result; \ + if (sizeof (*mem) == 4) \ + __result = __sync_lock_test_and_set_si ((int *) (mem), (int) (value)); \ + else if (sizeof (*mem) == 8) \ + __result = __sync_lock_test_and_set_di ((long *) (mem), \ + (long) (value)); \ + else \ + abort (); \ + __result; }) + #define atomic_exchange_and_add(mem, value) \ - ({ __typeof (*mem) __oldval, __val; \ - __typeof (mem) __memp = (mem); \ - __typeof (*mem) __value = (value); \ - \ - __val = (*__memp); \ - do \ - { \ - __oldval = __val; \ - __val = atomic_compare_and_exchange_val_acq (__memp, \ - __oldval + __value, \ - __oldval); \ - } \ - while (__builtin_expect (__val != __oldval, 0)); \ - __oldval; }) + ({ __typeof (*mem) __result; \ + if (sizeof (*mem) == 4) \ + __result = __sync_fetch_and_add_si ((int *) (mem), (int) (value)); \ + else if (sizeof (*mem) == 8) \ + __result = __sync_fetch_and_add_di ((long *) (mem), (long) (value)); \ + else \ + abort (); \ + __result; }) #define atomic_decrement_if_positive(mem) \ ({ __typeof (*mem) __oldval, __val; \ |