Correctly handle calls with no return values. This fixes
2006-01-23-UnionInit on x86-64 when inlining is not enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57223 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
index 7690250..76aecc3 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
@@ -5337,7 +5337,7 @@
   Chain = Res.getValue(LoweredRetTys.size() - 1);
 
   // Gather up the call result into a single value.
-  if (RetTy != Type::VoidTy) {
+  if (RetTy != Type::VoidTy && !RetTys.empty()) {
     ISD::NodeType AssertOp = ISD::DELETED_NODE;
 
     if (RetSExt)