ISD::UNDEF should be expanded recursively / iteratively.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52508 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 87bb1db..883ba38 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -5832,7 +5832,6 @@
Lo = ExpandEXTRACT_VECTOR_ELT(Op);
return ExpandOp(Lo, Lo, Hi);
case ISD::UNDEF:
- NVT = TLI.getTypeToExpandTo(VT);
Lo = DAG.getNode(ISD::UNDEF, NVT);
Hi = DAG.getNode(ISD::UNDEF, NVT);
break;
diff --git a/test/CodeGen/PowerPC/2008-06-19-LegalizerCrash.ll b/test/CodeGen/PowerPC/2008-06-19-LegalizerCrash.ll
new file mode 100644
index 0000000..d337e37
--- /dev/null
+++ b/test/CodeGen/PowerPC/2008-06-19-LegalizerCrash.ll
@@ -0,0 +1,6 @@
+; RUN: llvm-as < %s | llc -march=ppc32
+
+define void @t() nounwind {
+ call void null( ppc_fp128 undef )
+ unreachable
+}