llvm-svn: 106574
This commit is contained in:
Jim Grosbach 2010-06-22 20:52:02 +00:00
parent c89d2aad4c
commit 6c275bc5a2
1 changed files with 1 additions and 1 deletions

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@ -9843,7 +9843,7 @@ static SDValue PerformVZEXT_MOVLCombine(SDNode *N, SelectionDAG &DAG) {
// On X86 and X86-64, atomic operations are lowered to locked instructions.
// Locked instructions, in turn, have implicit fence semantics (all memory
// operations are flushed before issuing the locked instruction, and the
// operations are flushed before issuing the locked instruction, and they
// are not buffered), so we can fold away the common pattern of
// fence-atomic-fence.
static SDValue PerformMEMBARRIERCombine(SDNode* N, SelectionDAG &DAG) {