1// RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
2// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
3// RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
4// RUN: %clangxx_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
5
6// REQUIRES: compiler-rt-optimized
7
8#include <string.h>
9int main(int argc, char **argv) {
10 char a1[] = {static_cast<char>(argc), 2, 3, 4};
11 char a2[] = {1, static_cast<char>(2*argc), 3, 4};
12 int res = memcmp(s1: a1, s2: a2, n: 4 + argc); // BOOM
13 // CHECK: AddressSanitizer: stack-buffer-overflow
14 // CHECK: {{#[0-9]+ .*memcmp}}
15 // CHECK: {{#[0-9]+ .*main}}
16 return res;
17}
18

source code of compiler-rt/test/asan/TestCases/memcmp_test.cpp