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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 // RUN: %env_asan_opts=print_stats=1 not %run %t 2>&1 | FileCheck %s
      6 
      7 // FIXME: Fix this test under GCC.
      8 // REQUIRES: Clang
      9 
     10 #include <stdlib.h>
     11 #include <string.h>
     12 int main(int argc, char **argv) {
     13   char *x = (char*)malloc(10 * sizeof(char));
     14   memset(x, 0, 10);
     15   int res = x[argc * 10];  // BOOOM
     16   // CHECK: {{READ of size 1 at 0x.* thread T0}}
     17   // CHECK: {{    #0 0x.* in main .*heap-overflow.cc:}}[[@LINE-2]]
     18   // CHECK: {{0x.* is located 0 bytes to the right of 10-byte region}}
     19   // CHECK: {{allocated by thread T0 here:}}
     20 
     21   // CHECK: {{    #0 0x.* in .*malloc}}
     22   free(x);
     23   return res;
     24 }
     25