From c8af52c8980fa4a06f24e6fc08678ff8378088a1 Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Thu, 19 Jun 2008 22:01:11 +0000 Subject: [PATCH] ISD::UNDEF should be expanded recursively / iteratively. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52508 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 1 - test/CodeGen/PowerPC/2008-06-19-LegalizerCrash.ll | 6 ++++++ 2 files changed, 6 insertions(+), 1 deletion(-) create mode 100644 test/CodeGen/PowerPC/2008-06-19-LegalizerCrash.ll diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 87bb1dbf142..883ba38ca34 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -5832,7 +5832,6 @@ void SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 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 00000000000..d337e377309 --- /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 +}