1// RUN: %clang_cl_asan -O0 %s -Fe%t
2// RUN: not %run %t 2>&1 | FileCheck %s
3
4#include <malloc.h>
5
6int main() {
7  int *x = (int*)malloc(42 * sizeof(int));
8  free(x);
9  free(x);
10// CHECK: AddressSanitizer: attempting double-free on [[ADDR:0x[0-9a-f]+]]
11// CHECK-NEXT: {{#0 .* free }}
12// CHECK-NEXT: {{#1 .* main .*double_free.cc}}:[[@LINE-3]]
13// CHECK: [[ADDR]] is located 0 bytes inside of 168-byte region
14// CHECK-LABEL: freed by thread T0 here:
15// CHECK-NEXT: {{#0 .* free }}
16// CHECK-NEXT: {{#1 .* main .*double_free.cc}}:[[@LINE-8]]
17// CHECK-LABEL: previously allocated by thread T0 here:
18// CHECK-NEXT: {{#0 .* malloc }}
19// CHECK-NEXT: {{#1 .* main .*double_free.cc}}:[[@LINE-12]]
20  return 0;
21}
22