diff options
Diffstat (limited to 'libgomp/config/linux')
-rw-r--r-- | libgomp/config/linux/ptrlock.c | 4 | ||||
-rw-r--r-- | libgomp/config/linux/ptrlock.h | 5 | ||||
-rw-r--r-- | libgomp/config/linux/wait.h | 2 |
3 files changed, 6 insertions, 5 deletions
diff --git a/libgomp/config/linux/ptrlock.c b/libgomp/config/linux/ptrlock.c index 6a9ac477f13..fa51111eb23 100644 --- a/libgomp/config/linux/ptrlock.c +++ b/libgomp/config/linux/ptrlock.c @@ -50,9 +50,9 @@ gomp_ptrlock_get_slow (gomp_ptrlock_t *ptrlock) #endif do do_wait (intptr, 2); - while (*intptr == 2); + while (__atomic_load_n (intptr, MEMMODEL_RELAXED) == 2); __asm volatile ("" : : : "memory"); - return *ptrlock; + return (void *) __atomic_load_n (ptrlock, MEMMODEL_ACQUIRE); } void diff --git a/libgomp/config/linux/ptrlock.h b/libgomp/config/linux/ptrlock.h index ef23af71a15..8de1101afd1 100644 --- a/libgomp/config/linux/ptrlock.h +++ b/libgomp/config/linux/ptrlock.h @@ -48,8 +48,9 @@ static inline void *gomp_ptrlock_get (gomp_ptrlock_t *ptrlock) { uintptr_t oldval; - if ((uintptr_t) *ptrlock > 2) - return *ptrlock; + uintptr_t v = (uintptr_t) __atomic_load_n (ptrlock, MEMMODEL_ACQUIRE); + if (v > 2) + return (void *) v; oldval = 0; if (__atomic_compare_exchange_n (ptrlock, &oldval, 1, false, diff --git a/libgomp/config/linux/wait.h b/libgomp/config/linux/wait.h index 8799042bfb9..e60f527bc24 100644 --- a/libgomp/config/linux/wait.h +++ b/libgomp/config/linux/wait.h @@ -51,7 +51,7 @@ static inline int do_spin (int *addr, int val) if (__builtin_expect (gomp_managed_threads > gomp_available_cpus, 0)) count = gomp_throttled_spin_count_var; for (i = 0; i < count; i++) - if (__builtin_expect (*addr != val, 0)) + if (__builtin_expect (__atomic_load_n (addr, MEMMODEL_RELAXED) != val, 0)) return 0; else cpu_relax (); |