return C;
if (isa<UndefValue>(C)) {
- PointerType *PtrTy = cast<PointerType>(C->getType()->getScalarType());
- Type *Ty = GetElementPtrInst::getIndexedType(PointeeTy, Idxs);
- assert(Ty && "Invalid indices for GEP!");
- Type *GEPTy = PointerType::get(Ty, PtrTy->getAddressSpace());
- if (VectorType *VT = dyn_cast<VectorType>(C->getType()))
- GEPTy = VectorType::get(GEPTy, VT->getNumElements());
+ Type *GEPTy = GetElementPtrInst::getGEPReturnType(C,
+ makeArrayRef((Value * const *)Idxs.data(), Idxs.size()));
return UndefValue::get(GEPTy);
}
--- /dev/null
+; RUN: opt -instcombine %s -S | FileCheck %s
+
+; CHECK-LABEL: patatino
+; CHECK-NEXT: ret <8 x i64*> undef
+define <8 x i64*> @patatino() {
+ %el = getelementptr i64, <8 x i64*> undef, <8 x i64> undef
+ ret <8 x i64*> %el
+}
+
+; CHECK-LABEL: patatino2
+; CHECK-NEXT: ret <8 x i64*> undef
+define <8 x i64*> @patatino2() {
+ %el = getelementptr inbounds i64, i64* undef, <8 x i64> undef
+ ret <8 x i64*> %el
+}