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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131459 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2011-05-17 08:16:14 +00:00
parent c324f72ab7
commit 6abb7bae10
1 changed files with 4 additions and 4 deletions
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8
lib/Target/X86/X86ISelDAGToDAG.cpp
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@ -1550,10 +1550,10 @@ SDNode *X86DAGToDAGISel::SelectAtomicLoadArith(SDNode *Node, EVT NVT) {
if (Node->hasAnyUseOfValue(0))
return 0;
// Optimize common patterns for __sync_or_and_fetch where the result
// is not used. This allows us to use the "lock" version of the or
// instruction.
// FIXME: Same as for 'add' and 'sub'.
// Optimize common patterns for __sync_or_and_fetch and similar arith
// operations where the result is not used. This allows us to use the "lock"
// version of the arithmetic instruction.
// FIXME: Same as for 'add' and 'sub', try to merge those down here.
SDValue Chain = Node->getOperand(0);
SDValue Ptr = Node->getOperand(1);
SDValue Val = Node->getOperand(2);