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-rw-r--r--lib/CodeGen/SelectionDAG/DAGCombiner.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 0bdd8b8549..28c3be9eb6 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<LoadSDNode>(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()) {