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| author | Michael Liao <michael.liao@intel.com> | 2012-08-20 17:59:18 +0000 |
|---|---|---|
| committer | Michael Liao <michael.liao@intel.com> | 2012-08-20 17:59:18 +0000 |
| commit | 24438b83595dd243e4562912750ef15438787a42 (patch) | |
| tree | 95260fb177c730b6c13e83a72219b95fc2f77870 /lib | |
| parent | b862f094b78e3176813903f63c0e78b6e0e7852b (diff) | |
| download | external_llvm-24438b83595dd243e4562912750ef15438787a42.zip external_llvm-24438b83595dd243e4562912750ef15438787a42.tar.gz external_llvm-24438b83595dd243e4562912750ef15438787a42.tar.bz2 | |
fix a case where all operands of BUILD_VECTOR are undefined
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162214 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index e4af736..1bbd4a7 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -5180,6 +5180,10 @@ X86TargetLowering::LowerVectorFpExtend(SDValue &Op, SelectionDAG &DAG) const { Mask.push_back(cast<ConstantSDNode>(L2In.getOperand(1))->getZExtValue()); } + // Quit if all operands of BUILD_VECTOR are undefined. + if (!VecIn.getNode()) + return SDValue(); + // Fill the remaining mask as undef. for (unsigned i = NumElts; i < VecInVT.getVectorNumElements(); ++i) Mask.push_back(-1); |