Fix custom target lowering for zero/any/sign_extend: make sure that
DAG.UpdateNodeOperands() is called before (not after) the call to
TLI.LowerOperation().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50461 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index f964fb6..f8e44ec 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -3874,14 +3874,12 @@
case Expand: assert(0 && "Shouldn't need to expand other operators here!");
case Legal:
Tmp1 = LegalizeOp(Node->getOperand(0));
+ Result = DAG.UpdateNodeOperands(Result, Tmp1);
if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) ==
TargetLowering::Custom) {
- Tmp2 = TLI.LowerOperation(Result, DAG);
- if (Tmp2.Val) {
- Tmp1 = Tmp2;
- }
+ Tmp1 = TLI.LowerOperation(Result, DAG);
+ if (Tmp1.Val) Result = Tmp1;
}
- Result = DAG.UpdateNodeOperands(Result, Tmp1);
break;
case Promote:
switch (Node->getOpcode()) {