gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr36321.c


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extern void abort (void);

extern __SIZE_TYPE__ strlen (const char *);
void foo(char *str)
{
  int len2 = strlen (str);
  char *a = (char *) __builtin_alloca (0);
  char *b = (char *) __builtin_alloca (len2*3);

  if ((int) (a-b) < (len2*3))
    {
#ifdef _WIN32
      abort ();
#endif
      return;
    }
}

static char * volatile argp = "pr36321.x";

int main(int argc, char **argv)
{
  foo (argp);
  return 0;
}