1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp
index 504c94f..aec1e34 100644
--- a/llvm/lib/Analysis/ScalarEvolution.cpp
+++ b/llvm/lib/Analysis/ScalarEvolution.cpp
@@ -4345,8 +4345,10 @@ const SCEV *ScalarEvolution::getOffsetOfExpr(Type *IntTy,
   // We can bypass creating a target-independent constant expression and then
   // folding it back into a ConstantInt. This is just a compile-time
   // optimization.
-  return getConstant(
-      IntTy, getDataLayout().getStructLayout(STy)->getElementOffset(FieldNo));
+  const StructLayout *SL = getDataLayout().getStructLayout(STy);
+  assert(!SL->getSizeInBits().isScalable() &&
+         "Cannot get offset for structure containing scalable vector types");
+  return getConstant(IntTy, SL->getElementOffset(FieldNo));
 }
 
 const SCEV *ScalarEvolution::getUnknown(Value *V) {