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| author | Sanjay Patel <spatel@rotateright.com> | 2018-02-13 14:55:07 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2018-02-13 14:55:07 +0000 |
| commit | 907b58530f19d1c5d1e02b0d67e9255f0e70c869 (patch) | |
| tree | f51c676cac18bfccaabd562c4c075be17bc49081 /llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | |
| parent | 35d744d388aa6ab325036f3dfd258b4c39ade1bc (diff) | |
| download | bcm5719-llvm-907b58530f19d1c5d1e02b0d67e9255f0e70c869.tar.gz bcm5719-llvm-907b58530f19d1c5d1e02b0d67e9255f0e70c869.zip | |
[DAG] fix type of undef returned by getNode()
The bug has been lying dormant, but apparently was never exposed, until
after rL324941 because we didn't return the correct result
for shifts with undef operands.
llvm-svn: 325010
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 2ece6a82f6c..0dabfdf374e 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -4667,7 +4667,7 @@ SDValue SelectionDAG::getNode(unsigned Opcode, const SDLoc &DL, EVT VT, case ISD::FSUB: case ISD::FDIV: case ISD::FREM: - return N1; // fold op(undef, arg2) -> undef + return getUNDEF(VT); // fold op(undef, arg2) -> undef case ISD::UDIV: case ISD::SDIV: case ISD::UREM: @@ -4700,7 +4700,7 @@ SDValue SelectionDAG::getNode(unsigned Opcode, const SDLoc &DL, EVT VT, case ISD::SRA: case ISD::SRL: case ISD::SHL: - return N2; // fold op(arg1, undef) -> undef + return getUNDEF(VT); // fold op(arg1, undef) -> undef case ISD::FADD: case ISD::FSUB: case ISD::FMUL: |
