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| author | Dan Gohman <gohman@apple.com> | 2008-10-01 15:11:19 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-10-01 15:11:19 +0000 |
| commit | 38ac062c2f4de93cd4351693f084f0c4474be02c (patch) | |
| tree | 30c3482f942b01e1616cca34a38988bb1780c9bf /lib/CodeGen | |
| parent | 10b49489bff3f119ccbfba55df9fb14a8a784078 (diff) | |
Fold trivial two-operand tokenfactors where the operands are equal
immediately.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56921 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index eba3a2a9ce..3d0a2d6e50 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -2320,6 +2320,7 @@ SDValue SelectionDAG::getNode(unsigned Opcode, MVT VT, // Fold trivial token factors. if (N1.getOpcode() == ISD::EntryToken) return N2; if (N2.getOpcode() == ISD::EntryToken) return N1; + if (N1 == N2) return N1; break; case ISD::CONCAT_VECTORS: // A CONCAT_VECTOR with all operands BUILD_VECTOR can be simplified to |