From 16436dffb50fac4677c7162639f8da0b73eb4e99 Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Tue, 26 Jun 2012 01:19:33 +0000 Subject: [PATCH] Make sure type is not extended or untyped before create a constant of the type. No test case. Found by inspection. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159179 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 0bdd8b85497..28c3be9eb60 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -5020,6 +5020,10 @@ SDValue DAGCombiner::ReduceLoadWidth(SDNode *N) { LoadSDNode *LN0 = cast(N0); EVT PtrType = N0.getOperand(1).getValueType(); + if (PtrType == MVT::Untyped || PtrType.isExtended()) + // It's not possible to generate a constant of extended or untyped type. + return SDValue(); + // For big endian targets, we need to adjust the offset to the pointer to // load the correct bytes. if (TLI.isBigEndian()) {