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| author | Evan Cheng <evan.cheng@apple.com> | 2006-09-21 19:04:05 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2006-09-21 19:04:05 +0000 |
| commit | 2adffa1f6648c2bb1d96f22a4bf97964b7e4128f (patch) | |
| tree | c13815b2ad51c753790148cdf4926e43cd24d584 /lib/CodeGen/SelectionDAG/DAGCombiner.cpp | |
| parent | 649069728f49f041df68c54ead70687ecb946e89 (diff) | |
Make it work for DAG combine of multi-value nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30573 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 3e53ae0ed3..c30a222b4a 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -407,8 +407,13 @@ void DAGCombiner::Run(bool RunningAfterLegalize) { std::cerr << "\nWith: "; RV.Val->dump(&DAG); std::cerr << '\n'); std::vector<SDNode*> NowDead; - SDOperand OpV = RV; - DAG.ReplaceAllUsesWith(N, &OpV, &NowDead); + if (N->getNumValues() == RV.Val->getNumValues()) + DAG.ReplaceAllUsesWith(N, RV.Val, &NowDead); + else { + assert(N->getValueType(0) == RV.getValueType() && "Type mismatch"); + SDOperand OpV = RV; + DAG.ReplaceAllUsesWith(N, &OpV, &NowDead); + } // Push the new node and any users onto the worklist WorkList.push_back(RV.Val); |