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| author | Dan Gohman <gohman@apple.com> | 2008-04-14 18:43:25 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-04-14 18:43:25 +0000 |
| commit | 5b61a288a76b29ff9ac6899c3cab589fb0ba04a5 (patch) | |
| tree | 5e16673602f8df10a8ea793dc4d74eabe8f3e238 /llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | |
| parent | 751d4d2d60596555c1ce7cd9e613a711bf9f5081 (diff) | |
| download | bcm5719-llvm-5b61a288a76b29ff9ac6899c3cab589fb0ba04a5.tar.gz bcm5719-llvm-5b61a288a76b29ff9ac6899c3cab589fb0ba04a5.zip | |
Avoid creating MERGE_VALUES nodes for single values.
llvm-svn: 49676
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index a0f86976809..1e626677f02 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -1848,7 +1848,8 @@ SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT, unsigned OpOpcode = Operand.Val->getOpcode(); switch (Opcode) { case ISD::TokenFactor: - return Operand; // Factor of one node? No factor. + case ISD::MERGE_VALUES: + return Operand; // Factor or merge of one node? No need. case ISD::FP_ROUND: assert(0 && "Invalid method to make FP_ROUND node"); case ISD::FP_EXTEND: assert(MVT::isFloatingPoint(VT) && |
