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-rw-r--r--lib/Transforms/Scalar/SROA.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/SROA.cpp b/lib/Transforms/Scalar/SROA.cpp
index c959560b18..3b0cb38338 100644
--- a/lib/Transforms/Scalar/SROA.cpp
+++ b/lib/Transforms/Scalar/SROA.cpp
@@ -1487,6 +1487,8 @@ static Value *getNaturalGEPWithOffset(IRBuilder<> &IRB, const TargetData &TD,
return 0;
Type *ElementTy = Ty->getElementType();
+ if (!ElementTy->isSized())
+ return 0; // We can't GEP through an unsized element.
APInt ElementSize(Offset.getBitWidth(), TD.getTypeAllocSize(ElementTy));
if (ElementSize == 0)
return 0; // Zero-length arrays can't help us build a natural GEP.