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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  #include <string.h>
main(int argc,char ** argv)7  int main(int argc, char **argv) {
8    static char XXX[10];
9    static char YYY[10];
10    static char ZZZ[10];
11    memset(XXX, 0, 10);
12    memset(YYY, 0, 10);
13    memset(ZZZ, 0, 10);
14    int res = YYY[argc * 10];  // BOOOM
15    // CHECK: {{READ of size 1 at 0x.* thread T0}}
16    // CHECK: {{    #0 0x.* in main .*global-overflow.cc:}}[[@LINE-2]]
17    // CHECK: {{0x.* is located 0 bytes to the right of global variable}}
18    // CHECK:   {{.*YYY.* of size 10}}
19    res += XXX[argc] + ZZZ[argc];
20    return res;
21  }
22