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| author | Tim Northover <tnorthover@apple.com> | 2013-07-02 09:58:53 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2013-07-02 09:58:53 +0000 |
| commit | 6823900e556d5c5b7f5e7ddbf251eb26cd3732e4 (patch) | |
| tree | 772cdaee609c403b0cc2b0acafdab4e7e4fb3913 /llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | |
| parent | dba1c5587c374d493c25e1d36d8a525d0f00c690 (diff) | |
| download | bcm5719-llvm-6823900e556d5c5b7f5e7ddbf251eb26cd3732e4.tar.gz bcm5719-llvm-6823900e556d5c5b7f5e7ddbf251eb26cd3732e4.zip | |
DAGCombiner: fix use-counting issue when forming zextload
DAGCombiner was counting all uses of a load node when considering whether it's
worth combining into a zextload. Really, it wants to ignore the chain and just
count real uses.
rdar://problem/13896307
llvm-svn: 185419
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 00469b0f32a..1688fc495ad 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -2755,7 +2755,7 @@ SDValue DAGCombiner::visitAND(SDNode *N) { ? cast<LoadSDNode>(N0.getOperand(0)) : cast<LoadSDNode>(N0); if (LN0->getExtensionType() != ISD::SEXTLOAD && - LN0->isUnindexed() && N0.hasOneUse() && LN0->hasOneUse()) { + LN0->isUnindexed() && N0.hasOneUse() && SDValue(LN0, 0).hasOneUse()) { uint32_t ActiveBits = N1C->getAPIntValue().getActiveBits(); if (ActiveBits > 0 && APIntOps::isMask(ActiveBits, N1C->getAPIntValue())){ EVT ExtVT = EVT::getIntegerVT(*DAG.getContext(), ActiveBits); |
