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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 | c0e18d6638548720f2b3c0c77b8b3d3c7ff8d9a8 (patch) | |
| tree | 30c3482f942b01e1616cca34a38988bb1780c9bf | |
| parent | 31930c4b9d371ea3a0ff8a861561b1cf3ed3c0bc (diff) | |
| download | external_llvm-c0e18d6638548720f2b3c0c77b8b3d3c7ff8d9a8.zip external_llvm-c0e18d6638548720f2b3c0c77b8b3d3c7ff8d9a8.tar.gz external_llvm-c0e18d6638548720f2b3c0c77b8b3d3c7ff8d9a8.tar.bz2 | |
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
| -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 eba3a2a..3d0a2d6 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 |