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Fix bug in futex fast path inside kmp_csupport.c 

llvm-svn: 273439
This commit is contained in:
Jonathan Peyton 2016-06-22 16:36:07 +00:00
parent 9d2412c9e5
commit eeec4c8364
1 changed files with 1 additions and 1 deletions
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2
openmp/runtime/src/kmp_csupport.c
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@ -988,7 +988,7 @@ __kmp_init_indirect_csptr(kmp_critical_name * crit, ident_t const * loc, kmp_int
// Fast-path test futex lock
#define KMP_TEST_FUTEX_LOCK(lock, gtid, rc) { \
kmp_futex_lock_t *ftx = (kmp_futex_lock_t *)lock; \
if (KMP_COMPARE_AND_STORE_ACQ32(&(ftx->lk.poll), KMP_LOCK_FREE(futex), KMP_LOCK_BUSY(gtid+1, futex) << 1)) { \
if (KMP_COMPARE_AND_STORE_ACQ32(&(ftx->lk.poll), KMP_LOCK_FREE(futex), KMP_LOCK_BUSY(gtid+1 << 1, futex))) { \
KMP_FSYNC_ACQUIRED(ftx); \
rc = TRUE; \
} else { \