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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128730 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2011-04-01 19:57:01 +00:00
parent 8380c034b6
commit c249e48558
1 changed files with 4 additions and 2 deletions
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4
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
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@ -4929,9 +4929,11 @@ void SelectionDAGBuilder::LowerCallTo(ImmutableCallSite CS, SDValue Callee,
&ReturnValues[0], ReturnValues.size()));
}
// Assign order to nodes here. If the call does not produce a result, it won't
// be mapped to a SDNode and visit() will not assign it an order number.
if (!Result.second.getNode()) {
// 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()) {
HasTailCall = true;
++SDNodeOrder;
AssignOrderingToNode(DAG.getRoot().getNode());