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/* PR rtl-optimization/20017

   After CSE/GCSE folds a switch statement to an unconditional jump,

   cfg_cleanup did not remove a dead jump table, confusing the CFG

   layout code later on.  */

/* { dg-do compile } */

/* { dg-options "-O1" } */

/* { dg-options "-O1 -march=i386" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */

int

foo (int *buf, int *p)

{

  int result;

  const int *tmp;

  if (*buf)

    return 1;

  result = 2;

  *buf = 2;

  tmp = buf;

  switch (*tmp)

    {

    case 3:

    case 4:

    case 6:

    case 14:

      return 1;

    case 0:

      result = *p;

      /* Fall through.  */

    default:

      if (result)

        return 1;

    }

  return 0;

}