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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128730 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 9492353..6785d69 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -4929,9 +4929,11 @@
&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.
+ // 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.
HasTailCall = true;
++SDNodeOrder;
AssignOrderingToNode(DAG.getRoot().getNode());