diff options
| 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 | b91c89dfb9a7d119eb2184e3fda8af12d71713a6 (patch) | |
| tree | 998cd8079fb2998bfc8403c873cfc11ea26c1eb2 /lib/CodeGen/SelectionDAG/SelectionDAG.cpp | |
| parent | 235fc57ef2ed0a3c43a6e2d77b7c13f96a6f8036 (diff) | |
Avoid creating MERGE_VALUES nodes for single values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49676 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index a0f8697680..1e626677f0 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/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) && |