summaryrefslogtreecommitdiffstats
path: root/libgomp/config/linux
diff options
context:
space:
mode:
Diffstat (limited to 'libgomp/config/linux')
-rw-r--r--libgomp/config/linux/ptrlock.c4
-rw-r--r--libgomp/config/linux/ptrlock.h5
-rw-r--r--libgomp/config/linux/wait.h2
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 ();
OpenPOWER on IntegriCloud