diff options
Diffstat (limited to 'libgomp/config/linux/ia64/mutex.h')
| -rw-r--r-- | libgomp/config/linux/ia64/mutex.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/libgomp/config/linux/ia64/mutex.h b/libgomp/config/linux/ia64/mutex.h index 6e29405..8a67673 100644 --- a/libgomp/config/linux/ia64/mutex.h +++ b/libgomp/config/linux/ia64/mutex.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc. +/* Copyright (C) 2005, 2008, 2009, 2011 Free Software Foundation, Inc. Contributed by Richard Henderson <rth@redhat.com>. This file is part of the GNU OpenMP Library (libgomp). @@ -38,11 +38,12 @@ static inline void gomp_mutex_init (gomp_mutex_t *mutex) *mutex = 0; } -extern void gomp_mutex_lock_slow (gomp_mutex_t *mutex); +extern void gomp_mutex_lock_slow (gomp_mutex_t *mutex, int); static inline void gomp_mutex_lock (gomp_mutex_t *mutex) { - if (!__sync_bool_compare_and_swap (mutex, 0, 1)) - gomp_mutex_lock_slow (mutex); + int oldval = __sync_val_compare_and_swap (mutex, 0, 1); + if (__builtin_expect (oldval, 0)) + gomp_mutex_lock_slow (mutex, oldval); } extern void gomp_mutex_unlock_slow (gomp_mutex_t *mutex); |