C++ (Cpp) DF_REF_INSN_INFO Beispiele

Beispiel #1

Datei: ree.c Projekt: woailuoli993/gcc

static struct df_link *
get_defs (rtx_insn *insn, rtx reg, vec<rtx_insn *> *dest)
{
  df_ref use;
  struct df_link *ref_chain, *ref_link;

  FOR_EACH_INSN_USE (use, insn)
    {
      if (GET_CODE (DF_REF_REG (use)) == SUBREG)
        return NULL;
      if (REGNO (DF_REF_REG (use)) == REGNO (reg))
	break;
    }

  gcc_assert (use != NULL);

  ref_chain = DF_REF_CHAIN (use);

  for (ref_link = ref_chain; ref_link; ref_link = ref_link->next)
    {
      /* Problem getting some definition for this instruction.  */
      if (ref_link->ref == NULL)
        return NULL;
      if (DF_REF_INSN_INFO (ref_link->ref) == NULL)
        return NULL;
    }

  if (dest)
    for (ref_link = ref_chain; ref_link; ref_link = ref_link->next)
      dest->safe_push (DF_REF_INSN (ref_link->ref));

  return ref_chain;
}

Beispiel #2

Datei: web.c Projekt: CookieChen/gcc

void
union_defs (df_ref use, struct web_entry *def_entry,
	    unsigned int *used, struct web_entry *use_entry,
 	    bool (*fun) (struct web_entry *, struct web_entry *))
{
  struct df_insn_info *insn_info = DF_REF_INSN_INFO (use);
  struct df_link *link = DF_REF_CHAIN (use);
  rtx set;

  if (insn_info)
    {
      df_ref eq_use;

      set = single_set (insn_info->insn);
      FOR_EACH_INSN_INFO_EQ_USE (eq_use, insn_info)
	if (use != eq_use
	    && DF_REF_REAL_REG (use) == DF_REF_REAL_REG (eq_use))
	  (*fun) (use_entry + DF_REF_ID (use), use_entry + DF_REF_ID (eq_use));
    }
  else

Beispiel #3

Datei: ree.c Projekt: WojciechMigda/gcc

static struct df_link *
get_defs (rtx_insn *insn, rtx reg, vec<rtx_insn *> *dest)
{
  df_ref use;
  struct df_link *ref_chain, *ref_link;

  FOR_EACH_INSN_USE (use, insn)
    {
      if (GET_CODE (DF_REF_REG (use)) == SUBREG)
        return NULL;
      if (REGNO (DF_REF_REG (use)) == REGNO (reg))
	break;
    }

  gcc_assert (use != NULL);

  ref_chain = DF_REF_CHAIN (use);

  for (ref_link = ref_chain; ref_link; ref_link = ref_link->next)
    {
      /* Problem getting some definition for this instruction.  */
      if (ref_link->ref == NULL)
        return NULL;
      if (DF_REF_INSN_INFO (ref_link->ref) == NULL)
        return NULL;
      /* As global regs are assumed to be defined at each function call
	 dataflow can report a call_insn as being a definition of REG.
	 But we can't do anything with that in this pass so proceed only
	 if the instruction really sets REG in a way that can be deduced
	 from the RTL structure.  */
      if (global_regs[REGNO (reg)]
	  && !set_of (reg, DF_REF_INSN (ref_link->ref)))
	return NULL;
    }

  if (dest)
    for (ref_link = ref_chain; ref_link; ref_link = ref_link->next)
      dest->safe_push (DF_REF_INSN (ref_link->ref));

  return ref_chain;
}

Beispiel #4

Datei: ree.c Projekt: aixoss/gcc

static struct df_link *
get_defs (rtx insn, rtx reg, vec<rtx> *dest)
{
  df_ref reg_info, *uses;
  struct df_link *ref_chain, *ref_link;

  reg_info = NULL;

  for (uses = DF_INSN_USES (insn); *uses; uses++)
    {
      reg_info = *uses;
      if (GET_CODE (DF_REF_REG (reg_info)) == SUBREG)
        return NULL;
      if (REGNO (DF_REF_REG (reg_info)) == REGNO (reg))
        break;
    }

  gcc_assert (reg_info != NULL && uses != NULL);

  ref_chain = DF_REF_CHAIN (reg_info);

  for (ref_link = ref_chain; ref_link; ref_link = ref_link->next)
    {
      /* Problem getting some definition for this instruction.  */
      if (ref_link->ref == NULL)
        return NULL;
      if (DF_REF_INSN_INFO (ref_link->ref) == NULL)
        return NULL;
    }

  if (dest)
    for (ref_link = ref_chain; ref_link; ref_link = ref_link->next)
      dest->safe_push (DF_REF_INSN (ref_link->ref));

  return ref_chain;
}