diff --git a/lib/Analysis/ConstantFolding.cpp b/lib/Analysis/ConstantFolding.cpp
index c9f738b..d74d7e8 100644
--- a/lib/Analysis/ConstantFolding.cpp
+++ b/lib/Analysis/ConstantFolding.cpp
@@ -547,8 +547,7 @@
   for (unsigned i = 1, e = Ops.size(); i != e; ++i) {
     if ((i == 1 ||
          !isa<StructType>(GetElementPtrInst::getIndexedType(Ops[0]->getType(),
-                                                            Ops.data() + 1,
-                                                            i-1))) &&
+                                                        Ops.slice(1, i-1)))) &&
         Ops[i]->getType() != IntPtrTy) {
       Any = true;
       NewIdxs.push_back(ConstantExpr::getCast(CastInst::getCastOpcode(Ops[i],