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| author | Bob Wilson <bob.wilson@apple.com> | 2010-06-28 23:40:25 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2010-06-28 23:40:25 +0000 |
| commit | 8674949513837dab7efa11c8d338db4f714a244b (patch) | |
| tree | e17376d9c6bd516f24977898f061126a59f2a131 /lib/CodeGen | |
| parent | 45e01d2751eefe0845c9ef48684697bbcbf5a2e3 (diff) | |
| download | external_llvm-8674949513837dab7efa11c8d338db4f714a244b.zip external_llvm-8674949513837dab7efa11c8d338db4f714a244b.tar.gz external_llvm-8674949513837dab7efa11c8d338db4f714a244b.tar.bz2 | |
Unlike other targets, ARM now uses BUILD_VECTORs post-legalization so they
can't be changed arbitrarily by the DAGCombiner without checking if it is
running after legalization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107097 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index d817c48..ad9d853 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -2322,7 +2322,8 @@ SDValue DAGCombiner::visitOR(SDNode *N) { } // fold (or x, undef) -> -1 - if (N0.getOpcode() == ISD::UNDEF || N1.getOpcode() == ISD::UNDEF) { + if (!LegalOperations && + (N0.getOpcode() == ISD::UNDEF || N1.getOpcode() == ISD::UNDEF)) { EVT EltVT = VT.isVector() ? VT.getVectorElementType() : VT; return DAG.getConstant(APInt::getAllOnesValue(EltVT.getSizeInBits()), VT); } |