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| author | Chris Lattner <sabre@nondot.org> | 2007-12-29 07:15:45 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-12-29 07:15:45 +0000 |
| commit | 2de9b852979be1123919c7c5d11a4b962fae6495 (patch) | |
| tree | d9b385ed95518b0e0e26ba55d242362d9f48285d | |
| parent | 07ccbfa64a66018d76d6249fb12108952fb8a7da (diff) | |
| download | bcm5719-llvm-2de9b852979be1123919c7c5d11a4b962fae6495.tar.gz bcm5719-llvm-2de9b852979be1123919c7c5d11a4b962fae6495.zip | |
make sure not to zap volatile stores, thanks a lot to Dale for noticing this!
llvm-svn: 45402
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 0ee45575633..cfa46e6b591 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -4252,7 +4252,8 @@ SDOperand DAGCombiner::visitSTORE(SDNode *N) { if (LoadSDNode *Ld = dyn_cast<LoadSDNode>(Value)) { if (Chain.Val == Ld && Ld->getBasePtr() == Ptr && ST->getAddressingMode() == ISD::UNINDEXED && - ST->getStoredVT() == Ld->getLoadedVT()) { + ST->getStoredVT() == Ld->getLoadedVT() && + !ST->isVolatile()) { // The store is dead, remove it. return Chain; } |
