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make sure not to zap volatile stores, thanks a lot to Dale for noticing this!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45402 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -4252,7 +4252,8 @@ SDOperand DAGCombiner::visitSTORE(SDNode *N) {
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if (LoadSDNode *Ld = dyn_cast<LoadSDNode>(Value)) {
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if (Chain.Val == Ld && Ld->getBasePtr() == Ptr &&
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ST->getAddressingMode() == ISD::UNINDEXED &&
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ST->getStoredVT() == Ld->getLoadedVT()) {
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ST->getStoredVT() == Ld->getLoadedVT() &&
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!ST->isVolatile()) {
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// The store is dead, remove it.
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return Chain;
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}
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