diff options
| author | Roland McGrath <roland@gnu.org> | 2003-03-26 04:02:03 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 2003-03-26 04:02:03 +0000 |
| commit | 859e708f0e44d50deff617c7fd939f4fba295afb (patch) | |
| tree | c02276928e6c984391f089af6b54f81220165d0e /sysdeps/ia64/bits | |
| parent | dd410d4d4585883d02aa497f4227551c5c4cf811 (diff) | |
| download | glibc-859e708f0e44d50deff617c7fd939f4fba295afb.tar.gz | |
* csu/tst-atomic.c (do_test): Add some new
atomic_compare_and_exchange_val_acq, atomic_add_zero,
atomic_compare_and_exchange_bool_acq and atomic_add_negative tests.
* include/atomic.h (atomic_add_negative, atomic_add_zero):
Prefix local variable so that it doesn't clash with the one
in atomic_exchange_and_add.
* sysdeps/ia64/bits/atomic.h (atomic_exchange): Fix for long/void *
pointers.
(atomic_exchange_and_add): Implement using __sync_fetch_and_add_?i.
* sysdeps/powerpc/bits/atomic.h (atomic_exchange_and_add): Force
value into register.
* sysdeps/s390/bits/atomic.h (__arch_compare_and_exchange_val_64_acq):
Cast newval to long.
* sysdeps/x86_64/bits/atomic.h
(__arch_compare_and_exchange_val_64_acq): Cast newval and oldval to
long.
(atomic_exchange): Cast newvalue to long if sizeof == 8.
(atomic_exchange_and_add): Cast value to long if sizeof == 8.
(atomic_add, atomic_add_negative, atomic_add_zero): Likewise.
(atomic_bit_set): Shift 1L up in all cases to shut up warnings.
Diffstat (limited to 'sysdeps/ia64/bits')
| -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; \ |