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C++ REG_P函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中REG_P函数的典型用法代码示例。如果您正苦于以下问题:C++ REG_P函数的具体用法?C++ REG_P怎么用?C++ REG_P使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了REG_P函数的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: conforming_compare

static rtx
conforming_compare (rtx_insn *insn)
{
  rtx set, src, dest;

  set = single_set (insn);
  if (set == NULL)
    return NULL;

  src = SET_SRC (set);
  if (GET_CODE (src) != COMPARE)
    return NULL;

  dest = SET_DEST (set);
  if (!REG_P (dest) || REGNO (dest) != targetm.flags_regnum)
    return NULL;

  if (!REG_P (XEXP (src, 0)))
    return NULL;

  if (CONSTANT_P (XEXP (src, 1)) || REG_P (XEXP (src, 1)))
    return src;

  if (GET_CODE (XEXP (src, 1)) == UNSPEC)
    {
      for (int i = 0; i < XVECLEN (XEXP (src, 1), 0); i++)
	if (!REG_P (XVECEXP (XEXP (src, 1), 0, i)))
	  return NULL;
      return src;
    }

  return NULL;
}
开发者ID:gmarkall,项目名称:gcc,代码行数:33,代码来源:compare-elim.c


示例2: crx_addr_reg_p

static int crx_addr_reg_p (rtx addr_reg)
{
  rtx reg;

  if (REG_P (addr_reg))
    {
      reg = addr_reg;
    }
  else if ((GET_CODE (addr_reg) == SUBREG
	   && REG_P (SUBREG_REG (addr_reg))
	   && GET_MODE_SIZE (GET_MODE (SUBREG_REG (addr_reg)))
	   <= UNITS_PER_WORD))
    {
      reg = SUBREG_REG (addr_reg);
    }
  else
    return FALSE;

  if (GET_MODE (addr_reg) != Pmode)
    {
      return FALSE;
    }

  return TRUE;
}
开发者ID:Akheon23,项目名称:chromecast-mirrored-source.toolchain,代码行数:25,代码来源:crx.c


示例3: should_replace_address

static bool
should_replace_address (rtx old_rtx, rtx new_rtx, machine_mode mode,
			addr_space_t as, bool speed)
{
  int gain;

  if (rtx_equal_p (old_rtx, new_rtx)
      || !memory_address_addr_space_p (mode, new_rtx, as))
    return false;

  /* Copy propagation is always ok.  */
  if (REG_P (old_rtx) && REG_P (new_rtx))
    return true;

  /* Prefer the new address if it is less expensive.  */
  gain = (address_cost (old_rtx, mode, as, speed)
	  - address_cost (new_rtx, mode, as, speed));

  /* If the addresses have equivalent cost, prefer the new address
     if it has the highest `set_src_cost'.  That has the potential of
     eliminating the most insns without additional costs, and it
     is the same that cse.c used to do.  */
  if (gain == 0)
    gain = (set_src_cost (new_rtx, VOIDmode, speed)
	    - set_src_cost (old_rtx, VOIDmode, speed));

  return (gain > 0);
}
开发者ID:ollie314,项目名称:gcc,代码行数:28,代码来源:fwprop.c


示例4: aarch_rev16_p_1

static bool
aarch_rev16_p_1 (rtx lhs, rtx rhs, enum machine_mode mode)
{
  if (GET_CODE (lhs) == AND
         && GET_CODE (XEXP (lhs, 0)) == ASHIFT
            && CONST_INT_P (XEXP (XEXP (lhs, 0), 1))
            && INTVAL (XEXP (XEXP (lhs, 0), 1)) == 8
            && REG_P (XEXP (XEXP (lhs, 0), 0))
         && CONST_INT_P (XEXP (lhs, 1))
      && GET_CODE (rhs) == AND
         && GET_CODE (XEXP (rhs, 0)) == LSHIFTRT
            && REG_P (XEXP (XEXP (rhs, 0), 0))
            && CONST_INT_P (XEXP (XEXP (rhs, 0), 1))
            && INTVAL (XEXP (XEXP (rhs, 0), 1)) == 8
         && CONST_INT_P (XEXP (rhs, 1))
      && REGNO (XEXP (XEXP (rhs, 0), 0)) == REGNO (XEXP (XEXP (lhs, 0), 0)))

    {
      rtx lhs_mask = XEXP (lhs, 1);
      rtx rhs_mask = XEXP (rhs, 1);

      return aarch_rev16_shright_mask_imm_p (rhs_mask, mode)
             && aarch_rev16_shleft_mask_imm_p (lhs_mask, mode);
    }

  return false;
}
开发者ID:CookieChen,项目名称:gcc,代码行数:27,代码来源:aarch-common.c


示例5: arithmetic_flags_clobber_p

static bool
arithmetic_flags_clobber_p (rtx_insn *insn)
{
  rtx pat, x;

  if (!NONJUMP_INSN_P (insn))
    return false;
  pat = PATTERN (insn);
  if (extract_asm_operands (pat))
    return false;

  if (GET_CODE (pat) == PARALLEL && XVECLEN (pat, 0) == 2)
    {
      x = XVECEXP (pat, 0, 0);
      if (GET_CODE (x) != SET)
	return false;
      x = SET_DEST (x);
      if (!REG_P (x))
	return false;

      x = XVECEXP (pat, 0, 1);
      if (GET_CODE (x) == CLOBBER)
	{
	  x = XEXP (x, 0);
	  if (REG_P (x) && REGNO (x) == targetm.flags_regnum)
	    return true;
	}
    }

  return false;
}
开发者ID:jtramm,项目名称:gcc,代码行数:31,代码来源:compare-elim.c


示例6: skip_unreturned_value

/* In case function does not return value,  we get clobber of pseudo followed
   by set to hard return value.  */
static rtx
skip_unreturned_value (rtx orig_insn)
{
  rtx insn = next_nonnote_insn (orig_insn);

  /* Skip possible clobber of pseudo return register.  */
  if (insn
      && GET_CODE (insn) == INSN
      && GET_CODE (PATTERN (insn)) == CLOBBER
      && REG_P (XEXP (PATTERN (insn), 0))
      && (REGNO (XEXP (PATTERN (insn), 0)) >= FIRST_PSEUDO_REGISTER))
    {
      rtx set_insn = next_nonnote_insn (insn);
      rtx set;
      if (!set_insn)
	return insn;
      set = single_set (set_insn);
      if (!set
	  || SET_SRC (set) != XEXP (PATTERN (insn), 0)
	  || SET_DEST (set) != current_function_return_rtx)
	return insn;
      return set_insn;
    }
  return orig_insn;
}
开发者ID:robinsonb5,项目名称:zpugcc,代码行数:27,代码来源:sibcall.c


示例7: create_cand

/* Create candidate for INSN with rematerialization operand NOP and
   REGNO.  Insert the candidate into the table and set up the
   corresponding INSN_TO_CAND element.  */
static void
create_cand (rtx_insn *insn, int nop, int regno)
{
  lra_insn_recog_data_t id = lra_get_insn_recog_data (insn);
  rtx reg = *id->operand_loc[nop];
  gcc_assert (REG_P (reg));
  int op_regno = REGNO (reg);
  gcc_assert (op_regno >= FIRST_PSEUDO_REGISTER);
  cand_t cand = XNEW (struct cand);
  cand->insn = insn;
  cand->nop = nop;
  cand->regno = regno;
  cand->reload_regno = op_regno == regno ? -1 : op_regno;
  gcc_assert (cand->regno >= 0);
  cand_t cand_in_table = insert_cand (cand);
  insn_to_cand[INSN_UID (insn)] = cand_in_table;
  if (cand != cand_in_table)
    free (cand);
  else
    {
      /* A new cand.  */
      cand->index = all_cands.length ();
      all_cands.safe_push (cand);
      cand->next_regno_cand = regno_cands[cand->regno];
      regno_cands[cand->regno] = cand;
    }
}
开发者ID:iovisor-obsolete,项目名称:bpf_gcc,代码行数:30,代码来源:lra-remat.c


示例8: all_uses_available_at

/* Check if all uses in DEF_INSN can be used in TARGET_INSN.  This
   would require full computation of available expressions;
   we check only restricted conditions, see use_killed_between.  */
static bool
all_uses_available_at (rtx_insn *def_insn, rtx_insn *target_insn)
{
  df_ref use;
  struct df_insn_info *insn_info = DF_INSN_INFO_GET (def_insn);
  rtx def_set = single_set (def_insn);
  rtx_insn *next;

  gcc_assert (def_set);

  /* If target_insn comes right after def_insn, which is very common
     for addresses, we can use a quicker test.  Ignore debug insns
     other than target insns for this.  */
  next = NEXT_INSN (def_insn);
  while (next && next != target_insn && DEBUG_INSN_P (next))
    next = NEXT_INSN (next);
  if (next == target_insn && REG_P (SET_DEST (def_set)))
    {
      rtx def_reg = SET_DEST (def_set);

      /* If the insn uses the reg that it defines, the substitution is
         invalid.  */
      FOR_EACH_INSN_INFO_USE (use, insn_info)
	if (rtx_equal_p (DF_REF_REG (use), def_reg))
	  return false;
      FOR_EACH_INSN_INFO_EQ_USE (use, insn_info)
	if (rtx_equal_p (DF_REF_REG (use), def_reg))
	  return false;
    }
开发者ID:ollie314,项目名称:gcc,代码行数:32,代码来源:fwprop.c


示例9: ix86_carry_flag_operator_1

static inline int
ix86_carry_flag_operator_1 (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
#line 1045 "../.././gcc/config/i386/predicates.md"
{
  enum machine_mode inmode = GET_MODE (XEXP (op, 0));
  enum rtx_code code = GET_CODE (op);

  if (!REG_P (XEXP (op, 0))
      || REGNO (XEXP (op, 0)) != FLAGS_REG
      || XEXP (op, 1) != const0_rtx)
    return 0;

  if (inmode == CCFPmode || inmode == CCFPUmode)
    {
      enum rtx_code second_code, bypass_code;
      ix86_fp_comparison_codes (code, &bypass_code, &code, &second_code);
      if (bypass_code != UNKNOWN || second_code != UNKNOWN)
	return 0;
      code = ix86_fp_compare_code_to_integer (code);
    }
  else if (inmode == CCCmode)
   return code == LTU || code == GTU;
  else if (inmode != CCmode)
    return 0;

  return code == LTU;
}
开发者ID:YoungLeeNENU,项目名称:My-Emacs-Configuration,代码行数:27,代码来源:insn-preds.c


示例10: gen_lowpart_general

rtx
gen_lowpart_general (machine_mode mode, rtx x)
{
  rtx result = gen_lowpart_common (mode, x);

  if (result)
    return result;
  /* Handle SUBREGs and hard REGs that were rejected by
     simplify_gen_subreg.  */
  else if (REG_P (x) || GET_CODE (x) == SUBREG)
    {
      result = gen_lowpart_common (mode, copy_to_reg (x));
      gcc_assert (result != 0);
      return result;
    }
  else
    {
      /* The only additional case we can do is MEM.  */
      gcc_assert (MEM_P (x));

      /* The following exposes the use of "x" to CSE.  */
      scalar_int_mode xmode;
      if (is_a <scalar_int_mode> (GET_MODE (x), &xmode)
	  && GET_MODE_SIZE (xmode) <= UNITS_PER_WORD
	  && TRULY_NOOP_TRUNCATION_MODES_P (mode, xmode)
	  && !reload_completed)
	return gen_lowpart_general (mode, force_reg (xmode, x));

      poly_int64 offset = byte_lowpart_offset (mode, GET_MODE (x));
      return adjust_address (x, mode, offset);
    }
}
开发者ID:MaxKellermann,项目名称:gcc,代码行数:32,代码来源:rtlhooks.c


示例11: insn_sets_btr_p

/* Return true if insn is an instruction that sets a target register.
   if CHECK_CONST is true, only return true if the source is constant.
   If such a set is found and REGNO is nonzero, assign the register number
   of the destination register to *REGNO.  */
static int
insn_sets_btr_p (const_rtx insn, int check_const, int *regno)
{
  rtx set;

  if (NONJUMP_INSN_P (insn)
      && (set = single_set (insn)))
    {
      rtx dest = SET_DEST (set);
      rtx src = SET_SRC (set);

      if (GET_CODE (dest) == SUBREG)
	dest = XEXP (dest, 0);

      if (REG_P (dest)
	  && TEST_HARD_REG_BIT (all_btrs, REGNO (dest)))
	{
	  gcc_assert (!btr_referenced_p (src, NULL));

	  if (!check_const || CONSTANT_P (src))
	    {
	      if (regno)
		*regno = REGNO (dest);
	      return 1;
	    }
	}
    }
  return 0;
}
开发者ID:HackLinux,项目名称:mips-baremetal,代码行数:33,代码来源:bt-load.c


示例12: pseudo

/* If INSN can not be used for rematerialization, return negative
   value.  If INSN can be considered as a candidate for
   rematerialization, return value which is the operand number of the
   pseudo for which the insn can be used for rematerialization.  Here
   we consider the insns without any memory, spilled pseudo (except
   for the rematerialization pseudo), or dying or unused regs.  */
static int
operand_to_remat (rtx_insn *insn)
{
  lra_insn_recog_data_t id = lra_get_insn_recog_data (insn);
  struct lra_static_insn_data *static_id = id->insn_static_data;
  struct lra_insn_reg *reg, *found_reg = NULL;

  /* First find a pseudo which can be rematerialized.  */
  for (reg = id->regs; reg != NULL; reg = reg->next)
    /* True FRAME_POINTER_NEEDED might be because we can not follow
       changing sp offsets, e.g. alloca is used.  If the insn contains
       stack pointer in such case, we can not rematerialize it as we
       can not know sp offset at a rematerialization place.  */
    if (reg->regno == STACK_POINTER_REGNUM && frame_pointer_needed)
      return -1;
    else if (reg->type == OP_OUT && ! reg->subreg_p
	     && find_regno_note (insn, REG_UNUSED, reg->regno) == NULL)
      {
	/* We permits only one spilled reg.  */
	if (found_reg != NULL)
	  return -1;
	found_reg = reg;
      }
  if (found_reg == NULL)
    return -1;
  if (found_reg->regno < FIRST_PSEUDO_REGISTER)
    return -1;
  if (bad_for_rematerialization_p (PATTERN (insn)))
    return -1;
  /* Check the other regs are not spilled. */
  for (reg = id->regs; reg != NULL; reg = reg->next)
    if (found_reg == reg)
      continue;
    else if (reg->type == OP_INOUT)
      return -1;
    else if (reg->regno >= FIRST_PSEUDO_REGISTER
	     && reg_renumber[reg->regno] < 0)
      /* Another spilled reg.  */
      return -1;
    else if (reg->type == OP_IN)
      {
	if (find_regno_note (insn, REG_DEAD, reg->regno) != NULL)
	  /* We don't want to make live ranges longer.  */
	  return -1;
	/* Check that there is no output reg as the input one.  */
	for (struct lra_insn_reg *reg2 = id->regs;
	     reg2 != NULL;
	     reg2 = reg2->next)
	  if (reg2->type == OP_OUT && reg->regno == reg2->regno)
	    return -1;
      }
  /* Find the rematerialization operand.  */
  int nop = static_id->n_operands;
  for (int i = 0; i < nop; i++)
    if (REG_P (*id->operand_loc[i])
	&& (int) REGNO (*id->operand_loc[i]) == found_reg->regno)
      return i;
  return -1;
}
开发者ID:iovisor-obsolete,项目名称:bpf_gcc,代码行数:65,代码来源:lra-remat.c


示例13: nds32_expand_strlen

bool
nds32_expand_strlen (rtx result, rtx str,
		     rtx target_char, rtx align ATTRIBUTE_UNUSED)
{
  rtx base_reg, backup_base_reg;
  rtx ffb_result;
  rtx target_char_ptr, length;
  rtx loop_label, tmp;

  if (optimize_size || optimize < 3)
    return false;

  gcc_assert (MEM_P (str));
  gcc_assert (CONST_INT_P (target_char) || REG_P (target_char));

  base_reg = copy_to_mode_reg (SImode, XEXP (str, 0));
  loop_label = gen_label_rtx ();

  ffb_result = gen_reg_rtx (Pmode);
  tmp = gen_reg_rtx (SImode);
  backup_base_reg = gen_reg_rtx (SImode);

  /* Emit loop version of strlen.
       move  $backup_base, $base
     .Lloop:
       lmw.bim $tmp, [$base], $tmp, 0
       ffb   $ffb_result, $tmp, $target_char   ! is there $target_char?
       beqz  $ffb_result, .Lloop
       add   $last_char_ptr, $base, $ffb_result
       sub   $length, $last_char_ptr, $backup_base  */

  /* move  $backup_base, $base  */
  emit_move_insn (backup_base_reg, base_reg);

  /* .Lloop:  */
  emit_label (loop_label);
  /* lmw.bim $tmp, [$base], $tmp, 0  */
  emit_insn (gen_unaligned_load_update_base_w (base_reg, tmp, base_reg));

  /*  ffb   $ffb_result, $tmp, $target_char   ! is there $target_char?  */
  emit_insn (gen_unspec_ffb (ffb_result, tmp, target_char));

  /* beqz  $ffb_result, .Lloop  */
  emit_cmp_and_jump_insns (ffb_result, const0_rtx, EQ, NULL,
			   SImode, 1, loop_label);

  /* add   $target_char_ptr, $base, $ffb_result   */
  target_char_ptr = expand_binop (Pmode, add_optab, base_reg,
				ffb_result, NULL_RTX, 0, OPTAB_WIDEN);

  /* sub   $length, $target_char_ptr, $backup_base  */
  length = expand_binop (Pmode, sub_optab, target_char_ptr,
			 backup_base_reg, NULL_RTX, 0, OPTAB_WIDEN);

  emit_move_insn (result, length);

  return true;
}
开发者ID:KangDroid,项目名称:gcc,代码行数:58,代码来源:nds32-memory-manipulation.c


示例14: path

/* Generate code for transformations 3 and 4 (with MODE and OPERATION,
   operands OP1 and OP2, result TARGET, at most SUB subtractions, and
   probability of taking the optimal path(s) PROB1 and PROB2).  */
static rtx
gen_mod_subtract (enum machine_mode mode, enum rtx_code operation,
		  rtx target, rtx op1, rtx op2, int sub, int prob1, int prob2)
{
  rtx tmp, tmp1, jump;
  rtx end_label = gen_label_rtx ();
  rtx sequence;
  int i;

  start_sequence ();
  
  if (!REG_P (op2))
    {
      tmp = gen_reg_rtx (mode);
      emit_move_insn (tmp, copy_rtx (op2));
    }
  else
    tmp = op2;

  emit_move_insn (target, copy_rtx (op1));
  do_compare_rtx_and_jump (target, tmp, LTU, 0, mode, NULL_RTX,
			   NULL_RTX, end_label);

  /* Add branch probability to jump we just created.  */
  jump = get_last_insn ();
  REG_NOTES (jump) = gen_rtx_EXPR_LIST (REG_BR_PROB,
					GEN_INT (prob1), REG_NOTES (jump));

  for (i = 0; i < sub; i++)
    {
      tmp1 = expand_simple_binop (mode, MINUS, target, tmp, target,
	    			  0, OPTAB_WIDEN);
      if (tmp1 != target)
	emit_move_insn (target, tmp1);
      do_compare_rtx_and_jump (target, tmp, LTU, 0, mode, NULL_RTX,
    			       NULL_RTX, end_label);

      /* Add branch probability to jump we just created.  */
      jump = get_last_insn ();
      REG_NOTES (jump) = gen_rtx_EXPR_LIST (REG_BR_PROB,
					    GEN_INT (prob2), REG_NOTES (jump));
    }

  tmp1 = simplify_gen_binary (operation, mode, copy_rtx (target), copy_rtx (tmp));
  tmp1 = force_operand (tmp1, target);
  if (tmp1 != target)
    emit_move_insn (target, tmp1);
  
  emit_label (end_label);

  sequence = get_insns ();
  end_sequence ();
  rebuild_jump_labels (sequence);
  return sequence;
}
开发者ID:DJHartley,项目名称:iphone-dev,代码行数:58,代码来源:value-prof.c


示例15: propagate_rtx

static rtx
propagate_rtx (rtx x, machine_mode mode, rtx old_rtx, rtx new_rtx,
	       bool speed)
{
  rtx tem;
  bool collapsed;
  int flags;

  if (REG_P (new_rtx) && REGNO (new_rtx) < FIRST_PSEUDO_REGISTER)
    return NULL_RTX;

  flags = 0;
  if (REG_P (new_rtx)
      || CONSTANT_P (new_rtx)
      || (GET_CODE (new_rtx) == SUBREG
	  && REG_P (SUBREG_REG (new_rtx))
	  && (GET_MODE_SIZE (mode)
	      <= GET_MODE_SIZE (GET_MODE (SUBREG_REG (new_rtx))))))
    flags |= PR_CAN_APPEAR;
  if (!varying_mem_p (new_rtx))
    flags |= PR_HANDLE_MEM;

  if (speed)
    flags |= PR_OPTIMIZE_FOR_SPEED;

  tem = x;
  collapsed = propagate_rtx_1 (&tem, old_rtx, copy_rtx (new_rtx), flags);
  if (tem == x || !collapsed)
    return NULL_RTX;

  /* gen_lowpart_common will not be able to process VOIDmode entities other
     than CONST_INTs.  */
  if (GET_MODE (tem) == VOIDmode && !CONST_INT_P (tem))
    return NULL_RTX;

  if (GET_MODE (tem) == VOIDmode)
    tem = rtl_hooks.gen_lowpart_no_emit (mode, tem);
  else
    gcc_assert (GET_MODE (tem) == mode);

  return tem;
}
开发者ID:ollie314,项目名称:gcc,代码行数:42,代码来源:fwprop.c


示例16: vax_mode_dependent_address_p

int
vax_mode_dependent_address_p (rtx x)
{
  rtx xfoo0, xfoo1;

  /* Auto-increment cases are now dealt with generically in recog.c.  */

  if (GET_CODE (x) != PLUS)
    return 0;

  xfoo0 = XEXP (x, 0);
  xfoo1 = XEXP (x, 1);

  if (CONSTANT_ADDRESS_P (xfoo0) && REG_P (xfoo1))
    return 0;
  if (CONSTANT_ADDRESS_P (xfoo1) && REG_P (xfoo0))
    return 0;

  return 1;
}
开发者ID:h4ck3rm1k3,项目名称:gcc,代码行数:20,代码来源:vax.c


示例17: kill_set_value

static void
kill_set_value (rtx x, const_rtx set, void *data)
{
  struct value_data *const vd = (struct value_data *) data;
  if (GET_CODE (set) != CLOBBER)
    {
      kill_value (x, vd);
      if (REG_P (x))
	set_value_regno (REGNO (x), GET_MODE (x), vd);
    }
}
开发者ID:alexandermerritt,项目名称:dragonfly,代码行数:11,代码来源:regcprop.c


示例18: extract_mentioned_regs

static rtx_expr_list *
extract_mentioned_regs (rtx x)
{
  rtx_expr_list *mentioned_regs = NULL;
  subrtx_var_iterator::array_type array;
  FOR_EACH_SUBRTX_VAR (iter, array, x, NONCONST)
    {
      rtx x = *iter;
      if (REG_P (x))
	mentioned_regs = alloc_EXPR_LIST (0, x, mentioned_regs);
    }
开发者ID:sam3455,项目名称:gcc,代码行数:11,代码来源:store-motion.c


示例19: kill_value

static void
kill_value (const_rtx x, struct value_data *vd)
{
  if (GET_CODE (x) == SUBREG)
    {
      rtx tmp = simplify_subreg (GET_MODE (x), SUBREG_REG (x),
				 GET_MODE (SUBREG_REG (x)), SUBREG_BYTE (x));
      x = tmp ? tmp : SUBREG_REG (x);
    }
  if (REG_P (x))
    kill_value_regno (REGNO (x), REG_NREGS (x), vd);
}
开发者ID:krichter722,项目名称:gcc,代码行数:12,代码来源:regcprop.c


示例20: sdbout_reg_parms

static void
sdbout_reg_parms (tree parms)
{
  for (; parms; parms = TREE_CHAIN (parms))
    if (DECL_NAME (parms))
      {
	const char *name = IDENTIFIER_POINTER (DECL_NAME (parms));

	/* Report parms that live in registers during the function
	   but were passed in memory.  */
	if (REG_P (DECL_RTL (parms))
	    && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER
	    && PARM_PASSED_IN_MEMORY (parms))
	  {
	    if (name == 0 || *name == 0)
	      name = gen_fake_label ();
	    PUT_SDB_DEF (name);
	    PUT_SDB_INT_VAL (DBX_REGISTER_NUMBER (REGNO (DECL_RTL (parms))));
	    PUT_SDB_SCL (C_REG);
	    PUT_SDB_TYPE (plain_type (TREE_TYPE (parms)));
	    PUT_SDB_ENDEF;
	  }
	/* Report parms that live in memory but not where they were passed.  */
	else if (MEM_P (DECL_RTL (parms))
		 && GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS
		 && CONST_INT_P (XEXP (XEXP (DECL_RTL (parms), 0), 1))
		 && PARM_PASSED_IN_MEMORY (parms)
		 && ! rtx_equal_p (DECL_RTL (parms), DECL_INCOMING_RTL (parms)))
	  {
#if 0 /* ??? It is not clear yet what should replace this.  */
	    int offset = DECL_OFFSET (parms) / BITS_PER_UNIT;
	    /* A parm declared char is really passed as an int,
	       so it occupies the least significant bytes.
	       On a big-endian machine those are not the low-numbered ones.  */
	    if (BYTES_BIG_ENDIAN
		&& offset != -1
		&& TREE_TYPE (parms) != DECL_ARG_TYPE (parms))
	      offset += (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms)))
			 - GET_MODE_SIZE (GET_MODE (DECL_RTL (parms))));
	    if (INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)) != offset) {...}
#endif
	      {
		if (name == 0 || *name == 0)
		  name = gen_fake_label ();
		PUT_SDB_DEF (name);
		PUT_SDB_INT_VAL (DEBUGGER_AUTO_OFFSET
				 (XEXP (DECL_RTL (parms), 0)));
		PUT_SDB_SCL (C_AUTO);
		PUT_SDB_TYPE (plain_type (TREE_TYPE (parms)));
		PUT_SDB_ENDEF;
	      }
	  }
      }
开发者ID:BoxianLai,项目名称:moxiedev,代码行数:53,代码来源:sdbout.c



注:本文中的REG_P函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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C++ REG_PORT函数代码示例发布时间:2022-05-30
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C++ REG_FUNC函数代码示例发布时间:2022-05-30
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