Make sure to legalize assert[zs]ext's operand correctly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23208 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 235fe0f..461104c 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -456,14 +456,19 @@
assert(0 && "Do not know how to legalize this operator!");
abort();
case ISD::EntryToken:
- case ISD::AssertSext:
- case ISD::AssertZext:
case ISD::FrameIndex:
case ISD::GlobalAddress:
case ISD::ExternalSymbol:
case ISD::ConstantPool: // Nothing to do.
assert(isTypeLegal(Node->getValueType(0)) && "This must be legal!");
break;
+ case ISD::AssertSext:
+ case ISD::AssertZext:
+ Tmp1 = LegalizeOp(Node->getOperand(0));
+ if (Tmp1 != Node->getOperand(0))
+ Result = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1,
+ Node->getOperand(1));
+ break;
case ISD::CopyFromReg:
Tmp1 = LegalizeOp(Node->getOperand(0));
if (Tmp1 != Node->getOperand(0))