1// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -w -emit-llvm -o - %s -fsanitize=pointer-overflow | FileCheck %s
2
3// CHECK-LABEL: define{{.*}} void @variable_len_array_arith
4void variable_len_array_arith(int n, int k) {
5  int vla[n];
6  int (*p)[n] = &vla;
7
8  // CHECK: getelementptr inbounds i32, i32* {{.*}}, i64 [[INC:%.*]]
9  // CHECK: @llvm.smul.with.overflow.i64(i64 4, i64 [[INC]]), !nosanitize
10  // CHECK-NOT: select
11  // CHECK: call void @__ubsan_handle_pointer_overflow{{.*}}
12  ++p;
13
14  // CHECK: getelementptr inbounds i32, i32* {{.*}}, i64 [[IDXPROM:%.*]]
15  // CHECK: @llvm.smul.with.overflow.i64(i64 4, i64 [[IDXPROM]]), !nosanitize
16  // CHECK: select
17  // CHECK: call void @__ubsan_handle_pointer_overflow{{.*}}
18  p + k;
19}
20
21// CHECK-LABEL: define{{.*}} void @objc_id
22void objc_id(id *p) {
23  // CHECK: add i64 {{.*}}, 8, !nosanitize
24  // CHECK-NOT: select
25  // CHECK: @__ubsan_handle_pointer_overflow{{.*}}
26  p++;
27}
28