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/* { dg-do compile { target powerpc*-*-* ia64-*-* x86_64-*-* } } */

/* { dg-options "-O2 -fselective-scheduling -fmodulo-sched" } */

enum rtx_code

{

  INSN, ADDR_VEC, ADDR_DIFF_VEC, CALL_INSN, CODE_LABEL, BARRIER, NOTE

};

typedef union rtunion_def

{

  int rtint;

  char *rtstr;

  struct rtx_def *rtx;

  struct rtvec_def *rtvec;

}

rtunion;

typedef struct rtx_def

{

  unsigned short code;

  rtunion fld[1];

}

 *rtx;

typedef struct rtvec_def

{

  unsigned num_elem;

  rtunion elem[1];

}

 *rtvec;

extern rtx emit_barrier (void);

extern rtx emit_note (char *);

static void

copy_loop_body (rtx *map)

{

  int i;

  rtx insn, copy;

  rtx pat = copy->fld[3].rtx;

  switch (insn->code)

    {

    case INSN:

      if (insn->fld[7].rtx)

        {

        }

      else if (pat->code == ADDR_VEC || pat->code == ADDR_DIFF_VEC)

        {

          int diff_vec_p = pat->code == ADDR_DIFF_VEC;

          int len = pat->fld[diff_vec_p].rtvec->num_elem;

          for (i = 0; i < len; i++)

            pat->fld[diff_vec_p].rtvec->elem[i].rtx->fld[5].rtint++;

        }

    case CALL_INSN:

      for (i = 0; i < 64; i++)

        map[i] = 0;

    case CODE_LABEL:

    case BARRIER:

      copy = emit_barrier ();

    case NOTE:

      copy = emit_note ("x");

    }

}

void

unroll_loop (int insn_count, rtx *map)

{

  if (insn_count > 50)

    copy_loop_body (map);

}