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Revise previous patch per review.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47573 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen 2008-02-25 22:29:22 +00:00
parent 437d452adb
commit 14e2ea9a55
1 changed files with 3 additions and 4 deletions
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7
lib/Target/X86/X86ISelLowering.cpp
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@ -5885,6 +5885,7 @@ static SDOperand PerformSTORECombine(StoreSDNode *St, SelectionDAG &DAG,
isa<LoadSDNode>(St->getValue()) &&
!cast<LoadSDNode>(St->getValue())->isVolatile() &&
St->getChain().hasOneUse() && !St->isVolatile()) {
SDNode* LdVal = St->getValue().Val;
LoadSDNode *Ld = 0;
int TokenFactorIndex = -1;
SmallVector<SDOperand, 8> Ops;
@ -5892,14 +5893,12 @@ static SDOperand PerformSTORECombine(StoreSDNode *St, SelectionDAG &DAG,
// Must be a store of a load. We currently handle two cases: the load
// is a direct child, and it's under an intervening TokenFactor. It is
// possible to dig deeper under nested TokenFactors.
if (ChainVal == St->getValue().Val)
if (ChainVal == LdVal)
Ld = cast<LoadSDNode>(St->getChain());
else if (St->getValue().hasOneUse() &&
ChainVal->getOpcode() == ISD::TokenFactor) {
for (unsigned i=0, e = ChainVal->getNumOperands(); i != e; ++i) {
if (ChainVal->getOperand(i).Val == St->getValue().Val) {
if (TokenFactorIndex != -1)
return SDOperand();
if (ChainVal->getOperand(i).Val == LdVal) {
TokenFactorIndex = i;
Ld = cast<LoadSDNode>(St->getValue());
} else