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| author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2016-03-07 21:10:09 +0000 |
|---|---|---|
| committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2016-03-07 21:10:09 +0000 |
| commit | ceb2c06cbd20ed7288615188fe20a84a311b0818 (patch) | |
| tree | 42df1d3fe58d30241231c40cd210c1885c891f9d /llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | |
| parent | 5a9a42778ab565913b6c1b66c4e15cfa80b7a610 (diff) | |
| download | bcm5719-llvm-ceb2c06cbd20ed7288615188fe20a84a311b0818.tar.gz bcm5719-llvm-ceb2c06cbd20ed7288615188fe20a84a311b0818.zip | |
DAGCombiner: Check legality before creating extract_vector_elt
Problem not hit by any in tree target.
llvm-svn: 262852
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 36af244c2b8..b7c468a9579 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -7207,7 +7207,9 @@ SDValue DAGCombiner::visitTRUNCATE(SDNode *N) { if (N0.getOpcode() == ISD::BITCAST && !VT.isVector()) { SDValue VecSrc = N0.getOperand(0); EVT SrcVT = VecSrc.getValueType(); - if (SrcVT.isVector() && SrcVT.getScalarType() == VT) { + if (SrcVT.isVector() && SrcVT.getScalarType() == VT && + (!LegalOperations || + TLI.isOperationLegal(ISD::EXTRACT_VECTOR_ELT, SrcVT))) { SDLoc SL(N); EVT IdxVT = TLI.getVectorIdxTy(DAG.getDataLayout()); |
