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Revert 121907 (it causes llc crash) and apply original patch from PR9817. 

llvm-svn: 131926
This commit is contained in:
Devang Patel 2011-05-23 22:04:42 +00:00
parent a542f10092
commit efec7715ec
2 changed files with 3 additions and 3 deletions
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3
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -994,6 +994,9 @@ void DAGCombiner::Run(CombineLevel AtLevel) {
dbgs() << "\nWith: ";
RV.getNode()->dump(&DAG);
dbgs() << '\n');
// Transfer debug value.
DAG.TransferDbgValues(SDValue(N, 0), RV);
WorkListRemover DeadNodes(*this);
if (N->getNumValues() == RV.getNode()->getNumValues())
DAG.ReplaceAllUsesWith(N, RV.getNode(), &DeadNodes);

3
llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
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@ -5150,9 +5150,6 @@ void SelectionDAG::ReplaceAllUsesWith(SDValue FromN, SDValue To,
"Cannot replace with this method!");
assert(From != To.getNode() && "Cannot replace uses of with self");
// Transfer debug values.
TransferDbgValues(FromN, To);
// Iterate over all the existing uses of From. New uses will be added
// to the beginning of the use list, which we avoid visiting.
// This specifically avoids visiting uses of From that arise while the