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Assign node order numbers to results of call instruction lowering. This should improve src line debug info when sdisel is used. rdar://9199118

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llvm-svn: 128728
This commit is contained in:
Evan Cheng 2011-04-01 19:42:22 +00:00
parent b5bbbd9889
commit 13c73e4836
1 changed files with 8 additions and 4 deletions
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12
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
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@ -4927,15 +4927,19 @@ void SelectionDAGBuilder::LowerCallTo(ImmutableCallSite CS, SDValue Callee,
DAG.getNode(ISD::MERGE_VALUES, getCurDebugLoc(),
DAG.getVTList(&RetTys[0], RetTys.size()),
&ReturnValues[0], ReturnValues.size()));
}
// As a special case, a null chain means that a tail call has been emitted and
// the DAG root is already updated.
if (Result.second.getNode())
DAG.setRoot(Result.second);
else
if (!Result.second.getNode()) {
HasTailCall = true;
++SDNodeOrder;
AssignOrderingToNode(DAG.getRoot().getNode());
} else {
DAG.setRoot(Result.second);
++SDNodeOrder;
AssignOrderingToNode(Result.second.getNode());
}
if (LandingPad) {
// Insert a label at the end of the invoke call to mark the try range. This