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1// RUN: %clang_cl_asan %Od %s %Fe%t2// RUN: not %run %t 2>&1 | FileCheck %s3 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: {{ #[1-3] .* main .*double_free.cpp}}:[[@LINE-3]]13  // CHECK: [[ADDR]] is located 0 bytes inside of 168-byte region14  // CHECK-LABEL: freed by thread T0 here:15  // CHECK-NEXT: {{#0 .* free }}16  // CHECK: {{ #[1-3] .* main .*double_free.cpp}}:[[@LINE-8]]17  // CHECK-LABEL: previously allocated by thread T0 here:18  // CHECK-NEXT: {{#0 .* malloc }}19  // CHECK: {{ #[1-3] .* main .*double_free.cpp}}:[[@LINE-12]]20  return 0;21}22