1  /* PR rtl-optimization/20017
       2  
       3     After CSE/GCSE folds a switch statement to an unconditional jump,
       4     cfg_cleanup did not remove a dead jump table, confusing the CFG
       5     layout code later on.  */
       6  
       7  /* { dg-do compile } */
       8  /* { dg-options "-O1" } */
       9  /* { dg-options "-O1 -march=i386" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
      10  
      11  int
      12  foo (int *buf, int *p)
      13  {
      14    int result;
      15    const int *tmp;
      16  
      17    if (*buf)
      18      return 1;
      19  
      20    result = 2;
      21    *buf = 2;
      22    tmp = buf;
      23    switch (*tmp)
      24      {
      25      case 3:
      26      case 4:
      27      case 6:
      28      case 14:
      29        return 1;
      30  
      31      case 0:
      32        result = *p;
      33  
      34        /* Fall through.  */
      35      default:
      36        if (result)
      37  	return 1;
      38      }
      39  
      40    return 0;
      41  }