1  /* Copyright (C) 2003 Free Software Foundation.
       2  
       3     Test that the -fno-wrapv command line option is accepted and enables
       4     "unsafe" optimizations that rely on undefined arithmetic overflow.
       5  
       6     Written by Roger Sayle, 31st May 2003.  */
       7  
       8  /* { dg-do run } */
       9  /* { dg-options "-O2 -fno-wrapv" } */
      10  
      11  #include <limits.h>
      12  
      13  extern void abort ();
      14  
      15  int test(int x)
      16  {
      17    return (2*x)/2;
      18  }
      19  
      20  int
      21  main()
      22  {
      23    int x = INT_MAX;
      24  
      25    if (test(x) != x)
      26      abort ();
      27    return 0;
      28  }
      29