1  /* { dg-do compile { target powerpc*-*-* ia64-*-* i?86-*-* x86_64-*-* } } */
       2  /* { dg-options "-O2 -fselective-scheduling -fmodulo-sched" } */
       3  
       4  enum rtx_code
       5  {
       6    INSN, ADDR_VEC, ADDR_DIFF_VEC, CALL_INSN, CODE_LABEL, BARRIER, NOTE
       7  };
       8  typedef union rtunion_def
       9  {
      10    int rtint;
      11    char *rtstr;
      12    struct rtx_def *rtx;
      13    struct rtvec_def *rtvec;
      14  }
      15  rtunion;
      16  typedef struct rtx_def
      17  {
      18    unsigned short code;
      19    rtunion fld[1];
      20  }
      21   *rtx;
      22  typedef struct rtvec_def
      23  {
      24    unsigned num_elem;
      25    rtunion elem[1];
      26  }
      27   *rtvec;
      28  extern rtx emit_barrier (void);
      29  extern rtx emit_note (char *);
      30  
      31  static void
      32  copy_loop_body (rtx *map)
      33  {
      34    int i;
      35    rtx insn, copy;
      36    rtx pat = copy->fld[3].rtx;
      37  
      38    switch (insn->code)
      39      {
      40      case INSN:
      41        if (insn->fld[7].rtx)
      42  	{
      43  	}
      44        else if (pat->code == ADDR_VEC || pat->code == ADDR_DIFF_VEC)
      45  	{
      46  	  int diff_vec_p = pat->code == ADDR_DIFF_VEC;
      47  	  int len = pat->fld[diff_vec_p].rtvec->num_elem;
      48  	  for (i = 0; i < len; i++)
      49  	    pat->fld[diff_vec_p].rtvec->elem[i].rtx->fld[5].rtint++;
      50  	}
      51      case CALL_INSN:
      52        for (i = 0; i < 64; i++)
      53  	map[i] = 0;
      54      case CODE_LABEL:
      55      case BARRIER:
      56        copy = emit_barrier ();
      57      case NOTE:
      58        copy = emit_note ("x");
      59      }
      60  }
      61  void
      62  unroll_loop (int insn_count, rtx *map)
      63  {
      64    if (insn_count > 50)
      65      copy_loop_body (map);
      66  }
      67