2 // RUN: %clang_cc1 -x objective-c -emit-llvm -triple x86_64-apple-macosx10.10.0 -fsanitize=nullability-return,returns-nonnull-attribute,nullability-arg,nonnull-attribute %s -o - -w | FileCheck %s
4 // If both the annotation and the attribute are present, prefer the attribute,
5 // since it actually affects IRGen.
7 // CHECK-LABEL: define nonnull i32* @f1
8 __attribute__((returns_nonnull)) int *_Nonnull f1(int *_Nonnull p) {
10 // CHECK-NEXT: [[ADDR:%.*]] = alloca i32*
11 // CHECK-NEXT: store i32* [[P:%.*]], i32** [[ADDR]]
12 // CHECK-NEXT: [[ARG:%.*]] = load i32*, i32** [[ADDR]]
13 // CHECK-NEXT: [[ICMP:%.*]] = icmp ne i32* [[ARG]], null, !nosanitize
14 // CHECK-NEXT: br i1 [[ICMP]], label %[[CONT:.+]], label %[[HANDLE:[^,]+]]
16 // CHECK-NEXT: call void @__ubsan_handle_nonnull_return_abort
17 // CHECK-NEXT: unreachable, !nosanitize
19 // CHECK-NEXT: ret i32*
23 // CHECK-LABEL: define void @f2
24 void f2(int *_Nonnull __attribute__((nonnull)) p) {}
26 // CHECK-LABEL: define void @call_f2
28 // CHECK: call void @__ubsan_handle_nonnull_arg_abort
29 // CHECK-NOT: call void @__ubsan_handle_nonnull_arg_abort