;; GCC machine description for Matsushita MN10300
;; Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
;; Contributed by Jeff Law (law@cygnus.com).

;; This file is part of GNU CC.

;; GNU CC is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; GNU CC is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU CC; see the file COPYING.  If not, write to
;; the Free Software Foundation, 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;; The original PO technology requires these to be ordered by speed,
;; so that assigner will pick the fastest.

;; See file "rtl.def" for documentation on define_insn, match_*, et. al.

;; Condition code settings.
;; none - insn does not affect cc
;; none_0hit - insn does not affect cc but it does modify operand 0
;;	This attribute is used to keep track of when operand 0 changes.
;; 	See the description of NOTICE_UPDATE_CC for more info.
;; set_znv - insn sets z,n,v to usable values; c is unusable.
;; set_zn  - insn sets z,n to usable values; v,c are unusable.
;; compare - compare instruction
;; invert -- like compare, but flags are inverted.
;; clobber - value of cc is unknown
(define_attr "cc" "none,none_0hit,set_znv,set_zn,compare,clobber,invert"
  (const_string "clobber"))

;; ----------------------------------------------------------------------
;; MOVE INSTRUCTIONS
;; ----------------------------------------------------------------------

;; movqi

(define_expand "movqi"
  [(set (match_operand:QI 0 "general_operand" "")
	(match_operand:QI 1 "general_operand" ""))]
  ""
  "
{
  /* One of the ops has to be in a register */
  if (!register_operand (operand0, QImode)
      && !register_operand (operand1, QImode))
    operands[1] = copy_to_mode_reg (QImode, operand1);
}")

(define_insn ""
  [(set (match_operand:QI 0 "nonimmediate_operand" "=d*x*a,d*x,d*x*a,d*x*a,m")
	(match_operand:QI 1 "general_operand" "0,I,d*xai,m,d*xa"))]
  "TARGET_AM33
   && (register_operand (operands[0], QImode)
       || register_operand (operands[1], QImode))"
  "*
{
  switch (which_alternative)
    {
    case 0:
      return \"nop\";
    case 1:
      return \"clr %0\";
    case 2:
      if (GET_CODE (operands[1]) == CONST_DOUBLE)
	{
	  rtx xoperands[2];
	  xoperands[0] = operands[0];
	  xoperands[1] = GEN_INT (CONST_DOUBLE_LOW (operands[1]));
	  output_asm_insn (\"mov %1,%0\", xoperands);
	  return \"\";
	}

      if (REGNO_REG_CLASS (true_regnum (operands[0])) == EXTENDED_REGS
	  && GET_CODE (operands[1]) == CONST_INT)
	{
	  HOST_WIDE_INT val = INTVAL (operands[1]);

	  if (((val & 0x80) && ! (val & 0xffffff00))
	      || ((val & 0x800000) && ! (val & 0xff000000)))
	    return \"movu %1,%0\";
	}
      return \"mov %1,%0\";
    case 3:
    case 4:
      return \"movbu %1,%0\";
    default:
      abort ();
    }
}"
  [(set_attr "cc" "none,clobber,none_0hit,none_0hit,none_0hit")])

(define_insn ""
  [(set (match_operand:QI 0 "nonimmediate_operand" "=d*a,d,d*a,d,m")
	(match_operand:QI 1 "general_operand" "0,I,dai,m,d"))]
  "register_operand (operands[0], QImode)
   || register_operand (operands[1], QImode)"
  "*
{
  switch (which_alternative)
    {
    case 0:
      return \"nop\";
    case 1:
      return \"clr %0\";
    case 2:
      if (GET_CODE (operands[1]) == CONST_DOUBLE)
	{
	  rtx xoperands[2];
	  xoperands[0] = operands[0];
	  xoperands[1] = GEN_INT (CONST_DOUBLE_LOW (operands[1]));
	  output_asm_insn (\"mov %1,%0\", xoperands);
	  return \"\";
	}

      return \"mov %1,%0\";
    case 3:
    case 4:
      return \"movbu %1,%0\";
    default:
      abort ();
    }
}"
  [(set_attr "cc" "none,clobber,none_0hit,none_0hit,none_0hit")])

;; movhi

(define_expand "movhi"
  [(set (match_operand:HI 0 "general_operand" "")
	(match_operand:HI 1 "general_operand" ""))]
  ""
  "
{
  /* One of the ops has to be in a register */
  if (!register_operand (operand1, HImode)
      && !register_operand (operand0, HImode))
    operands[1] = copy_to_mode_reg (HImode, operand1);
}")

(define_insn ""
  [(set (match_operand:HI 0 "nonimmediate_operand" "=d*x*a,d*x,d*x*a,d*x*a,m")
	(match_operand:HI 1 "general_operand" "0,I,d*x*ai,m,d*x*a"))]
  "TARGET_AM33
   && (register_operand (operands[0], HImode)
       || register_operand (operands[1], HImode))"
  "*
{
  switch (which_alternative)
    {
    case 0:
      return \"nop\";
    case 1:
      return \"clr %0\";
    case 2:
      if (GET_CODE (operands[1]) == CONST_DOUBLE)
	{
	  rtx xoperands[2];
	  xoperands[0] = operands[0];
	  xoperands[1] = GEN_INT (CONST_DOUBLE_LOW (operands[1]));
	  output_asm_insn (\"mov %1,%0\", xoperands);
	  return \"\";
	}

      if (REGNO_REG_CLASS (true_regnum (operands[0])) == EXTENDED_REGS
	  && GET_CODE (operands[1]) == CONST_INT)
	{
	  HOST_WIDE_INT val = INTVAL (operands[1]);

	  if (((val & 0x80) && ! (val & 0xffffff00))
	      || ((val & 0x800000) && ! (val & 0xff000000)))
	    return \"movu %1,%0\";
	}
      return \"mov %1,%0\";
    case 3:
    case 4:
      return \"movhu %1,%0\";
    default:
      abort ();
    }
}"
  [(set_attr "cc" "none,clobber,none_0hit,none_0hit,none_0hit")])

(define_insn ""
  [(set (match_operand:HI 0 "nonimmediate_operand" "=d*a,d,d*a,d,m")
	(match_operand:HI 1 "general_operand" "0,I,dai,m,d"))]
  "register_operand (operands[0], HImode)
   || register_operand (operands[1], HImode)"
  "*
{
  switch (which_alternative)
    {
    case 0:
      return \"nop\";
    case 1:
      return \"clr %0\";
    case 2:
      if (GET_CODE (operands[1]) == CONST_DOUBLE)
	{
	  rtx xoperands[2];
	  xoperands[0] = operands[0];
	  xoperands[1] = GEN_INT (CONST_DOUBLE_LOW (operands[1]));
	  output_asm_insn (\"mov %1,%0\", xoperands);
	  return \"\";
	}
      return \"mov %1,%0\";
    case 3:
    case 4:
      return \"movhu %1,%0\";
    default:
      abort ();
    }
}"
  [(set_attr "cc" "none,clobber,none_0hit,none_0hit,none_0hit")])

;; movsi and helpers

;; We use this to handle addition of two values when one operand is the
;; stack pointer and the other is a memory reference of some kind.  Reload
;; does not handle them correctly without this expander.
(define_expand "reload_insi"
  [(set (match_operand:SI 0 "register_operand" "=a")
	(match_operand:SI 1 "impossible_plus_operand" ""))
   (clobber (match_operand:SI 2 "register_operand" "=&r"))]
  ""
  "
{
  if (XEXP (operands[1], 0) == stack_pointer_rtx)
    {
      if (GET_CODE (XEXP (operands[1], 1)) == SUBREG
	  && (GET_MODE_SIZE (GET_MODE (XEXP (operands[1], 1)))
	      > GET_MODE_SIZE (GET_MODE (SUBREG_REG (XEXP (operands[1], 1))))))
	emit_move_insn (operands[2],
			gen_rtx_ZERO_EXTEND
			(GET_MODE (XEXP (operands[1], 1)),
			 SUBREG_REG (XEXP (operands[1], 1))));
      else
	emit_move_insn (operands[2], XEXP (operands[1], 1));
      emit_move_insn (operands[0], XEXP (operands[1], 0));
    }
  else
    {
      if (GET_CODE (XEXP (operands[1], 0)) == SUBREG
	  && (GET_MODE_SIZE (GET_MODE (XEXP (operands[1], 0)))
	      > GET_MODE_SIZE (GET_MODE (SUBREG_REG (XEXP (operands[1], 0))))))
	emit_move_insn (operands[2],
			gen_rtx_ZERO_EXTEND
			(GET_MODE (XEXP (operands[1], 0)),
			 SUBREG_REG (XEXP (operands[1], 0))));
      else
	emit_move_insn (operands[2], XEXP (operands[1], 0));
      emit_move_insn (operands[0], XEXP (operands[1], 1));
    }
  emit_insn (gen_addsi3 (operands[0], operands[0], operands[2]));
  DONE;
}")

(define_expand "movsi"
  [(set (match_operand:SI 0 "general_operand" "")
	(match_operand:SI 1 "general_operand" ""))]
  ""
  "
{
  /* One of the ops has to be in a register */
  if (!register_operand (operand1, SImode)
      && !register_operand (operand0, SImode))
    operands[1] = copy_to_mode_reg (SImode, operand1);
}")

(define_insn ""
  [(set (match_operand:SI 0 "nonimmediate_operand"
				"=dx,ax,dx,a,dxm,dxm,axm,axm,dx,dx,ax,ax,axR,!*y")
	(match_operand:SI 1 "general_operand"
				"0,0,I,I,dx,ax,dx,ax,dixm,aixm,dixm,aixm,!*y,axR"))]
  "register_operand (operands[0], SImode)
   || register_operand (operands[1], SImode)"
  "*
{
  switch (which_alternative)
    {
    case 0:
    case 1:
      return \"nop\";
    case 2:
      return \"clr %0\";
    case 3:
    case 4:
    case 5:
    case 6:
    case 7:
    case 8:
    case 9:
    case 10:
    case 11:
    case 12:
    case 13:
      if (GET_CODE (operands[1]) == CONST_DOUBLE)
	{
	  rtx xoperands[2];
	  xoperands[0] = operands[0];
	  xoperands[1] = GEN_INT (CONST_DOUBLE_LOW (operands[1]));
	  output_asm_insn (\"mov %1,%0\", xoperands);
	  return \"\";
	}

      if (REGNO_REG_CLASS (true_regnum (operands[0])) == EXTENDED_REGS
	  && GET_CODE (operands[1]) == CONST_INT)
	{
	  HOST_WIDE_INT val = INTVAL (operands[1]);

	  if (((val & 0x80) && ! (val & 0xffffff00))
	      || ((val & 0x800000) && ! (val & 0xff000000)))
	    return \"movu %1,%0\";
	}
      return \"mov %1,%0\";
    default:
      abort ();
    }
}"
  [(set_attr "cc" "none,none,clobber,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit")])

(define_expand "movsf"
  [(set (match_operand:SF 0 "general_operand" "")
	(match_operand:SF 1 "general_operand" ""))]
  ""
  "
{
  /* One of the ops has to be in a register */
  if (!register_operand (operand1, SFmode)
      && !register_operand (operand0, SFmode))
    operands[1] = copy_to_mode_reg (SFmode, operand1);
}")

(define_insn ""
  [(set (match_operand:SF 0 "nonimmediate_operand" "=dx,ax,dx,a,daxm,dax")
	(match_operand:SF 1 "general_operand" "0,0,G,G,dax,daxFm"))]
  "register_operand (operands[0], SFmode)
   || register_operand (operands[1], SFmode)"
  "*
{
  switch (which_alternative)
    {
    case 0:
    case 1:
      return \"nop\";
    case 2:
      return \"clr %0\";
    case 3:
    case 4:
    case 5:
      if (REGNO_REG_CLASS (true_regnum (operands[0])) == EXTENDED_REGS
	  && GET_CODE (operands[1]) == CONST_INT)
	{
	  HOST_WIDE_INT val = INTVAL (operands[1]);

	  if (((val & 0x80) && ! (val & 0xffffff00))
	      || ((val & 0x800000) && ! (val & 0xff000000)))
	    return \"movu %1,%0\";
	}
      return \"mov %1,%0\";
    default:
      abort ();
    }
}"
  [(set_attr "cc" "none,none,clobber,none_0hit,none_0hit,none_0hit")])

(define_expand "movdi"
  [(set (match_operand:DI 0 "general_operand" "")
	(match_operand:DI 1 "general_operand" ""))]
  ""
  "
{
  /* One of the ops has to be in a register */
  if (!register_operand (operand1, DImode)
      && !register_operand (operand0, DImode))
    operands[1] = copy_to_mode_reg (DImode, operand1);
}")

(define_insn ""
  [(set (match_operand:DI 0 "nonimmediate_operand"
				"=dx,ax,dx,a,dxm,dxm,axm,axm,dx,dx,ax,ax")
	(match_operand:DI 1 "general_operand"
				"0,0,I,I,dx,ax,dx,ax,dxim,axim,dxim,axim"))]
  "register_operand (operands[0], DImode)
   || register_operand (operands[1], DImode)"
  "*
{
  long val[2];
  REAL_VALUE_TYPE rv;

  switch (which_alternative)
    {
      case 0:
      case 1:
	return \"nop\";

      case 2:
	return \"clr %L0\;clr %H0\";

      case 3:
	if (rtx_equal_p (operands[0], operands[1]))
	  return \"sub %L1,%L0\;mov %L0,%H0\";
	else
	  return \"mov %1,%L0\;mov %L0,%H0\";
      case 4:
      case 5:
      case 6:
      case 7:
      case 8:
      case 9:
      case 10:
      case 11:
	if (GET_CODE (operands[1]) == CONST_INT)
	  {
	    rtx low, high;
	    split_double (operands[1], &low, &high);
	    val[0] = INTVAL (low);
	    val[1] = INTVAL (high);
	  }
	if (GET_CODE (operands[1]) == CONST_DOUBLE)
	  {
	    if (GET_MODE (operands[1]) == DFmode)
	      {
		REAL_VALUE_FROM_CONST_DOUBLE (rv, operands[1]);
		REAL_VALUE_TO_TARGET_DOUBLE (rv, val);
	      }
	    else if (GET_MODE (operands[1]) == VOIDmode
		     || GET_MODE (operands[1]) == DImode)
	      {
		val[0] = CONST_DOUBLE_LOW (operands[1]);
		val[1] = CONST_DOUBLE_HIGH (operands[1]);
	      }
	  }

	if (GET_CODE (operands[1]) == MEM
	    && reg_overlap_mentioned_p (operands[0], XEXP (operands[1], 0)))
	  {
	    rtx temp = operands[0];

	    while (GET_CODE (temp) == SUBREG)
	      temp = SUBREG_REG (temp);

	    if (GET_CODE (temp) != REG)
	      abort ();

	    if (reg_overlap_mentioned_p (gen_rtx_REG (SImode, REGNO (temp)),
					 XEXP (operands[1], 0)))
	      return \"mov %H1,%H0\;mov %L1,%L0\";
	    else
	      return \"mov %L1,%L0\;mov %H1,%H0\";
	      
	  }
	else if (GET_CODE (operands[1]) == MEM
		 && CONSTANT_ADDRESS_P (XEXP (operands[1], 0))
		 && REGNO_REG_CLASS (REGNO (operands[0])) == ADDRESS_REGS)
	  {
	    rtx xoperands[2];

	    xoperands[0] = operands[0];
	    xoperands[1] = XEXP (operands[1], 0);

	    output_asm_insn (\"mov %1,%L0\;mov (4,%L0),%H0\;mov (%L0),%L0\",
			     xoperands);
	    return \"\";
	  }
	else
	  {
	    if ((GET_CODE (operands[1]) == CONST_INT
		 || GET_CODE (operands[1]) == CONST_DOUBLE)
		&& val[0] == 0)
	      {
		if (REGNO_REG_CLASS (REGNO (operands[0])) == DATA_REGS)
		  output_asm_insn (\"clr %L0\", operands);
		else
		  output_asm_insn (\"mov %L1,%L0\", operands);
	      }
	    else if ((GET_CODE (operands[1]) == CONST_INT
		      || GET_CODE (operands[1]) == CONST_DOUBLE)
		     && (REGNO_REG_CLASS (true_regnum (operands[0]))
			 == EXTENDED_REGS)
		     && (((val[0] & 0x80) && ! (val[0] & 0xffffff00))
			 || ((val[0] & 0x800000) && ! (val[0] & 0xff000000))))
	      output_asm_insn (\"movu %1,%0\", operands);
	    else
	      output_asm_insn (\"mov %L1,%L0\", operands);

	    if ((GET_CODE (operands[1]) == CONST_INT
		 || GET_CODE (operands[1]) == CONST_DOUBLE)
		&& val[1] == 0)
	      {
		if (REGNO_REG_CLASS (REGNO (operands[0])) == DATA_REGS)
		  output_asm_insn (\"clr %H0\", operands);
		else
		  output_asm_insn (\"mov %H1,%H0\", operands);
	      }
	    else if ((GET_CODE (operands[1]) == CONST_INT
		      || GET_CODE (operands[1]) == CONST_DOUBLE)
		     && val[0] == val[1])
	      output_asm_insn (\"mov %L0,%H0\", operands);
	    else if ((GET_CODE (operands[1]) == CONST_INT
		      || GET_CODE (operands[1]) == CONST_DOUBLE)
		     && (REGNO_REG_CLASS (true_regnum (operands[0]))
			 == EXTENDED_REGS)
		     && (((val[1] & 0x80) && ! (val[1] & 0xffffff00))
			 || ((val[1] & 0x800000) && ! (val[1] & 0xff000000))))
	      output_asm_insn (\"movu %1,%0\", operands);
	    else
	      output_asm_insn (\"mov %H1,%H0\", operands);
	    return \"\";
	  }
    default:
      abort ();
    }
}"
  [(set_attr "cc" "none,none,clobber,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit")])

(define_expand "movdf"
  [(set (match_operand:DF 0 "general_operand" "")
	(match_operand:DF 1 "general_operand" ""))]
  ""
  "
{
  /* One of the ops has to be in a register */
  if (!register_operand (operand1, DFmode)
      && !register_operand (operand0, DFmode))
    operands[1] = copy_to_mode_reg (DFmode, operand1);
}")

(define_insn ""
  [(set (match_operand:DF 0 "nonimmediate_operand"
				"=dx,ax,dx,a,dxm,dxm,axm,axm,dx,dx,ax,ax")
	(match_operand:DF 1 "general_operand"
				"0,0,G,G,dx,ax,dx,ax,dxFm,axFm,dxFm,axFm"))]
  "register_operand (operands[0], DFmode)
   || register_operand (operands[1], DFmode)"
  "*
{
  long val[2];
  REAL_VALUE_TYPE rv;

  switch (which_alternative)
    {
      case 0:
      case 1:
	return \"nop\";

      case 2:
	return \"clr %L0\;clr %H0\";

      case 3:
	 if (rtx_equal_p (operands[0], operands[1]))
	   return \"sub %L1,%L0\;mov %L0,%H0\";
	 else
	   return \"mov %1,%L0\;mov %L0,%H0\";
      case 4:
      case 5:
      case 6:
      case 7:
      case 8:
      case 9:
      case 10:
      case 11:
	if (GET_CODE (operands[1]) == CONST_INT)
	  {
	    rtx low, high;
	    split_double (operands[1], &low, &high);
	    val[0] = INTVAL (low);
	    val[1] = INTVAL (high);
	  }
	if (GET_CODE (operands[1]) == CONST_DOUBLE)
	  {
	    if (GET_MODE (operands[1]) == DFmode)
	      {
		REAL_VALUE_FROM_CONST_DOUBLE (rv, operands[1]);
		REAL_VALUE_TO_TARGET_DOUBLE (rv, val);
	      }
	    else if (GET_MODE (operands[1]) == VOIDmode
		     || GET_MODE (operands[1]) == DImode)
	      {
		val[0] = CONST_DOUBLE_LOW (operands[1]);
		val[1] = CONST_DOUBLE_HIGH (operands[1]);
	      }
	  }

	if (GET_CODE (operands[1]) == MEM
	    && reg_overlap_mentioned_p (operands[0], XEXP (operands[1], 0)))
	  {
	    rtx temp = operands[0];

	    while (GET_CODE (temp) == SUBREG)
	      temp = SUBREG_REG (temp);

	    if (GET_CODE (temp) != REG)
	      abort ();

	    if (reg_overlap_mentioned_p (gen_rtx_REG (SImode, REGNO (temp)),
					 XEXP (operands[1], 0)))
	      return \"mov %H1,%H0\;mov %L1,%L0\";
	    else
	      return \"mov %L1,%L0\;mov %H1,%H0\";
	      
	  }
	else if (GET_CODE (operands[1]) == MEM
		 && CONSTANT_ADDRESS_P (XEXP (operands[1], 0))
		 && REGNO_REG_CLASS (REGNO (operands[0])) == ADDRESS_REGS)
	  {
	    rtx xoperands[2];

	    xoperands[0] = operands[0];
	    xoperands[1] = XEXP (operands[1], 0);

	    output_asm_insn (\"mov %1,%L0\;mov (4,%L0),%H0\;mov (%L0),%L0\",
			     xoperands);
	    return \"\";
	  }
	else
	  {
	    if ((GET_CODE (operands[1]) == CONST_INT
		 || GET_CODE (operands[1]) == CONST_DOUBLE)
		&& val[0] == 0)
	      {
		if (REGNO_REG_CLASS (REGNO (operands[0])) == DATA_REGS)
		  output_asm_insn (\"clr %L0\", operands);
		else
		  output_asm_insn (\"mov %L1,%L0\", operands);
	      }
	    else if ((GET_CODE (operands[1]) == CONST_INT
		      || GET_CODE (operands[1]) == CONST_DOUBLE)
		     && (REGNO_REG_CLASS (true_regnum (operands[0]))
			 == EXTENDED_REGS)
		     && (((val[0] & 0x80) && ! (val[0] & 0xffffff00))
			 || ((val[0] & 0x800000) && ! (val[0] & 0xff000000))))
	      output_asm_insn (\"movu %1,%0\", operands);
	    else
	      output_asm_insn (\"mov %L1,%L0\", operands);

	    if ((GET_CODE (operands[1]) == CONST_INT
		 || GET_CODE (operands[1]) == CONST_DOUBLE)
		&& val[1] == 0)
	      {
		if (REGNO_REG_CLASS (REGNO (operands[0])) == DATA_REGS)
		  output_asm_insn (\"clr %H0\", operands);
		else
		  output_asm_insn (\"mov %H1,%H0\", operands);
	      }
	    else if ((GET_CODE (operands[1]) == CONST_INT
		      || GET_CODE (operands[1]) == CONST_DOUBLE)
		     && val[0] == val[1])
	      output_asm_insn (\"mov %L0,%H0\", operands);
	    else if ((GET_CODE (operands[1]) == CONST_INT
		      || GET_CODE (operands[1]) == CONST_DOUBLE)
		     && (REGNO_REG_CLASS (true_regnum (operands[0]))
			 == EXTENDED_REGS)
		     && (((val[1] & 0x80) && ! (val[1] & 0xffffff00))
			 || ((val[1] & 0x800000) && ! (val[1] & 0xff000000))))
	      output_asm_insn (\"movu %1,%0\", operands);
	    else
	      output_asm_insn (\"mov %H1,%H0\", operands);
	    return \"\";
	  }
    default:
      abort ();
    }
}"
  [(set_attr "cc" "none,none,clobber,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit")])



;; ----------------------------------------------------------------------
;; TEST INSTRUCTIONS
;; ----------------------------------------------------------------------

;; Go ahead and define tstsi so we can eliminate redundant tst insns
;; when we start trying to optimize this port.
(define_insn "tstsi"
  [(set (cc0) (match_operand:SI 0 "register_operand" "dax"))]
  ""
  "* return output_tst (operands[0], insn);"
  [(set_attr "cc" "set_znv")])

(define_insn ""
  [(set (cc0) (zero_extend:SI (match_operand:QI 0 "memory_operand" "dx,!a")))]
  "TARGET_AM33"
  "* return output_tst (operands[0], insn);"
  [(set_attr "cc" "set_znv")])

(define_insn ""
  [(set (cc0) (zero_extend:SI (match_operand:QI 0 "memory_operand" "dx")))]
  ""
  "* return output_tst (operands[0], insn);"
  [(set_attr "cc" "set_znv")])

(define_insn ""
  [(set (cc0) (zero_extend:SI (match_operand:HI 0 "memory_operand" "dx,!a")))]
  "TARGET_AM33"
  "* return output_tst (operands[0], insn);"
  [(set_attr "cc" "set_znv")])

(define_insn ""
  [(set (cc0) (zero_extend:SI (match_operand:HI 0 "memory_operand" "dx")))]
  ""
  "* return output_tst (operands[0], insn);"
  [(set_attr "cc" "set_znv")])

(define_insn "cmpsi"
  [(set (cc0)
	(compare (match_operand:SI 0 "register_operand" "!*d*a*x,dax")
		 (match_operand:SI 1 "nonmemory_operand" "!*0,daxi")))]
  ""
  "@
  add 0,%0
  cmp %1,%0"
  [(set_attr "cc" "invert,compare")])

;; ----------------------------------------------------------------------
;; ADD INSTRUCTIONS
;; ----------------------------------------------------------------------

(define_expand "addsi3"
  [(set (match_operand:SI 0 "register_operand" "")
	(plus:SI (match_operand:SI 1 "register_operand" "")
		 (match_operand:SI 2 "nonmemory_operand" "")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx,a,x,a,dax,!*y,!dax")
	(plus:SI (match_operand:SI 1 "register_operand" "%0,0,0,0,0,0,dax")
		 (match_operand:SI 2 "nonmemory_operand" "J,J,L,L,daxi,i,dax")))]
  "TARGET_AM33"
  "*
{
  switch (which_alternative)
    {
    case 0:
    case 1:
      return \"inc %0\";
    case 2:
    case 3:
      return \"inc4 %0\";
    case 4:
    case 5:
      return \"add %2,%0\";
    case 6:
      {
	enum reg_class src1_class, src2_class, dst_class;

	src1_class = REGNO_REG_CLASS (true_regnum (operands[1]));
	src2_class = REGNO_REG_CLASS (true_regnum (operands[2]));
	dst_class = REGNO_REG_CLASS (true_regnum (operands[0]));
	
	/* I'm not sure if this can happen or not.  Might as well be prepared
	  and generate the best possible code if it does happen.  */
	if (true_regnum (operands[0]) == true_regnum (operands[1]))
	  return \"add %2,%0\";
	if (true_regnum (operands[0]) == true_regnum (operands[2]))
	  return \"add %1,%0\";

	/* Catch cases where no extended register was used.  These should be
	   handled just like the mn10300.  */
	if (src1_class != EXTENDED_REGS
	    && src2_class != EXTENDED_REGS
	    && dst_class != EXTENDED_REGS)
	  {
	    /* We have to copy one of the sources into the destination, then
	       add the other source to the destination.

	       Carefully select which source to copy to the destination; a naive
	       implementation will waste a byte when the source classes are 
	       different and the destination is an address register.  Selecting
	       the lowest cost register copy will optimize this sequence.  */
	    if (REGNO_REG_CLASS (true_regnum (operands[1]))
		== REGNO_REG_CLASS (true_regnum (operands[0])))
	      return \"mov %1,%0\;add %2,%0\";
	    return \"mov %2,%0\;add %1,%0\";
	  }

	/* At least one register is an extended register.  */

	/* The three operand add instruction on the am33 is a win iff the
	   output register is an extended register, or if both source
	   registers are extended registers.  */
	if (dst_class == EXTENDED_REGS
	    || src1_class == src2_class)
	  return \"add %2,%1,%0\";

      /* It is better to copy one of the sources to the destination, then
	 perform a 2 address add.  The destination in this case must be
	 an address or data register and one of the sources must be an
	 extended register and the remaining source must not be an extended
	 register.

	 The best code for this case is to copy the extended reg to the
	 destination, then emit a two address add.  */
      if (src1_class == EXTENDED_REGS)
	return \"mov %1,%0\;add %2,%0\";
      return \"mov %2,%0\;add %1,%0\";
      }
    default:
      abort ();
    }
}"
  [(set_attr "cc" "set_zn,none_0hit,set_zn,none_0hit,set_zn,none_0hit,set_zn")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx,a,a,dax,!*y,!dax")
	(plus:SI (match_operand:SI 1 "register_operand" "%0,0,0,0,0,dax")
		 (match_operand:SI 2 "nonmemory_operand" "J,J,L,daxi,i,dax")))]
  ""
  "*
{
  switch (which_alternative)
    {
    case 0:
    case 1:
      return \"inc %0\";
    case 2:
      return \"inc4 %0\";
    case 3:
    case 4:
      return \"add %2,%0\";
    case 5:
      /* I'm not sure if this can happen or not.  Might as well be prepared
	 and generate the best possible code if it does happen.  */
      if (true_regnum (operands[0]) == true_regnum (operands[1]))
	return \"add %2,%0\";
      if (true_regnum (operands[0]) == true_regnum (operands[2]))
	return \"add %1,%0\";

      /* We have to copy one of the sources into the destination, then add
	 the other source to the destination.

	 Carefully select which source to copy to the destination; a naive
	 implementation will waste a byte when the source classes are different
	 and the destination is an address register.  Selecting the lowest
	 cost register copy will optimize this sequence.  */
      if (REGNO_REG_CLASS (true_regnum (operands[1]))
	  == REGNO_REG_CLASS (true_regnum (operands[0])))
	return \"mov %1,%0\;add %2,%0\";
      return \"mov %2,%0\;add %1,%0\";
    default:
      abort ();
    }
}"
  [(set_attr "cc" "set_zn,none_0hit,none_0hit,set_zn,none_0hit,set_zn")])

;; ----------------------------------------------------------------------
;; SUBTRACT INSTRUCTIONS
;; ----------------------------------------------------------------------

(define_expand "subsi3"
  [(set (match_operand:SI 0 "register_operand" "")
	(minus:SI (match_operand:SI 1 "register_operand" "")
		  (match_operand:SI 2 "nonmemory_operand" "")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dax,!dax")
	(minus:SI (match_operand:SI 1 "register_operand" "0,dax")
		  (match_operand:SI 2 "nonmemory_operand" "daxi,dax")))]
  "TARGET_AM33"
  "*
{
  if (true_regnum (operands[0]) == true_regnum (operands[1]))
    return \"sub %2,%0\";
  else
    {
      enum reg_class src1_class, src2_class, dst_class;

      src1_class = REGNO_REG_CLASS (true_regnum (operands[1]));
      src2_class = REGNO_REG_CLASS (true_regnum (operands[2]));
      dst_class = REGNO_REG_CLASS (true_regnum (operands[0]));

      /* If no extended registers are used, then the best way to handle
	 this is to copy the first source operand into the destination
	 and emit a two address subtraction.  */
      if (src1_class != EXTENDED_REGS
	  && src2_class != EXTENDED_REGS
	  && dst_class != EXTENDED_REGS
	  && true_regnum (operands[0]) != true_regnum (operands[2]))
	return \"mov %1,%0\;sub %2,%0\";
      return \"sub %2,%1,%0\";
    }
}"
  [(set_attr "cc" "set_zn")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dax")
	(minus:SI (match_operand:SI 1 "register_operand" "0")
		  (match_operand:SI 2 "nonmemory_operand" "daxi")))]
  ""
  "sub %2,%0"
  [(set_attr "cc" "set_zn")])

(define_expand "negsi2"
  [(set (match_operand:SI 0 "register_operand" "")
        (neg:SI (match_operand:SI 1 "register_operand" "")))]
  ""
  "
{
  rtx target = gen_reg_rtx (SImode);

  emit_move_insn (target, GEN_INT (0));
  emit_insn (gen_subsi3 (target, target, operands[1]));
  emit_move_insn (operands[0], target);
  DONE;
}")

;; ----------------------------------------------------------------------
;; MULTIPLY INSTRUCTIONS
;; ----------------------------------------------------------------------

(define_insn "mulsidi3"
  [(set (match_operand:DI 0 "register_operand" "=dax")
        (mult:DI (sign_extend:DI (match_operand:SI 1 "register_operand" "dax"))
                 (sign_extend:DI (match_operand:SI 2 "register_operand" "dax"))))]
  "TARGET_AM33"
  "mul %1,%2,%H0,%L0"
  [(set_attr "cc" "set_zn")])

(define_insn "umulsidi3"
  [(set (match_operand:DI 0 "register_operand" "=dax")
        (mult:DI (zero_extend:DI (match_operand:SI 1 "register_operand" "dax"))
                 (zero_extend:DI (match_operand:SI 2 "register_operand" "dax"))))]
  "TARGET_AM33"
  "mulu %1,%2,%H0,%L0"
  [(set_attr "cc" "set_zn")])

(define_expand "mulsi3"
  [(set (match_operand:SI 0 "register_operand" "")
	(mult:SI (match_operand:SI 1 "register_operand" "")
		 (match_operand:SI 2 "register_operand" "")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx,!dax")
	(mult:SI (match_operand:SI 1 "register_operand" "%0,0")
		 (match_operand:SI 2 "nonmemory_operand" "dx,daxi")))]
  "TARGET_AM33"
  "*
{
  if (TARGET_MULT_BUG)
    return \"nop\;nop\;mul %2,%0\";
  else
    return \"mul %2,%0\";
}"
  [(set_attr "cc" "set_zn")])
  
(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx")
	(mult:SI (match_operand:SI 1 "register_operand" "%0")
		 (match_operand:SI 2 "register_operand" "dx")))]
  ""
  "*
{
  if (TARGET_MULT_BUG)
    return \"nop\;nop\;mul %2,%0\";
  else
    return \"mul %2,%0\";
}"
  [(set_attr "cc" "set_zn")])

(define_insn "udivmodsi4"
  [(set (match_operand:SI 0 "nonimmediate_operand" "=dx")
	(udiv:SI (match_operand:SI 1 "general_operand" "0")
		 (match_operand:SI 2 "general_operand" "dx")))
   (set (match_operand:SI 3 "nonimmediate_operand" "=&d")
	(umod:SI (match_dup 1) (match_dup 2)))]
  ""
  "*
{
  output_asm_insn (\"sub %3,%3\;mov %3,mdr\", operands);

  if (find_reg_note (insn, REG_UNUSED, operands[3]))
    return \"divu %2,%0\";
  else
    return \"divu %2,%0\;mov mdr,%3\";
}"
  [(set_attr "cc" "set_zn")])

(define_insn "divmodsi4"
  [(set (match_operand:SI 0 "nonimmediate_operand" "=dx")
	(div:SI (match_operand:SI 1 "general_operand" "0")
		 (match_operand:SI 2 "general_operand" "dx")))
   (set (match_operand:SI 3 "nonimmediate_operand" "=d")
	(mod:SI (match_dup 1) (match_dup 2)))]
  ""
  "*
{
  if (find_reg_note (insn, REG_UNUSED, operands[3]))
    return \"ext %0\;div %2,%0\";
  else
    return \"ext %0\;div %2,%0\;mov mdr,%3\";
}"
  [(set_attr "cc" "set_zn")])


;; ----------------------------------------------------------------------
;; AND INSTRUCTIONS
;; ----------------------------------------------------------------------

(define_expand "andsi3"
  [(set (match_operand:SI 0 "register_operand" "")
	(and:SI (match_operand:SI 1 "register_operand" "")
		(match_operand:SI 2 "nonmemory_operand" "")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx,dx,!dax")
	(and:SI (match_operand:SI 1 "register_operand" "%0,0,dax")
		(match_operand:SI 2 "nonmemory_operand" "N,dxi,dax")))]
  "TARGET_AM33"
  "*
{
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0xff)
    return \"extbu %0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0xffff)
    return \"exthu %0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0x7fffffff)
    return \"add %0,%0\;lsr 1,%0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0x3fffffff)
    return \"asl2 %0\;lsr 2,%0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0x1fffffff)
    return \"add %0,%0\;asl2 %0\;lsr 3,%0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0x0fffffff)
    return \"asl2 %0\;asl2 %0\;lsr 4,%0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0xfffffffe)
    return \"lsr 1,%0\;add %0,%0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0xfffffffc)
    return \"lsr 2,%0\;asl2 %0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0xfffffff8)
    return \"lsr 3,%0\;add %0,%0\;asl2 %0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0xfffffff0)
    return \"lsr 4,%0\;asl2 %0\;asl2 %0\";
  if (REG_P (operands[2]) && REG_P (operands[1])
      && true_regnum (operands[0]) != true_regnum (operands[1])
      && true_regnum (operands[0]) != true_regnum (operands[2])
      && REGNO_REG_CLASS (true_regnum (operands[0])) == DATA_REGS
      && REGNO_REG_CLASS (true_regnum (operands[1])) == DATA_REGS
      && REGNO_REG_CLASS (true_regnum (operands[2])) == DATA_REGS)
    return \"mov %1,%0\;and %2,%0\";
  if (REG_P (operands[2]) && REG_P (operands[1])
      && true_regnum (operands[0]) != true_regnum (operands[1])
      && true_regnum (operands[0]) != true_regnum (operands[2]))
    return \"and %1,%2,%0\";
  if (REG_P (operands[2]) && REG_P (operands[0])
      && true_regnum (operands[2]) == true_regnum (operands[0]))
    return \"and %1,%0\";
  return \"and %2,%0\";
}"
  [(set_attr "cc" "none_0hit,set_znv,set_znv")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx,dx")
	(and:SI (match_operand:SI 1 "register_operand" "%0,0")
		(match_operand:SI 2 "nonmemory_operand" "N,dxi")))]
  ""
  "*
{
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0xff)
    return \"extbu %0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0xffff)
    return \"exthu %0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0x7fffffff)
    return \"add %0,%0\;lsr 1,%0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0x3fffffff)
    return \"asl2 %0\;lsr 2,%0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0x1fffffff)
    return \"add %0,%0\;asl2 %0\;lsr 3,%0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0x0fffffff)
    return \"asl2 %0\;asl2 %0\;lsr 4,%0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0xfffffffe)
    return \"lsr 1,%0\;add %0,%0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0xfffffffc)
    return \"lsr 2,%0\;asl2 %0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0xfffffff8)
    return \"lsr 3,%0\;add %0,%0\;asl2 %0\";
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0xfffffff0)
    return \"lsr 4,%0\;asl2 %0\;asl2 %0\";
  return \"and %2,%0\";
}"
  [(set_attr "cc" "none_0hit,set_znv")])

;; ----------------------------------------------------------------------
;; OR INSTRUCTIONS
;; ----------------------------------------------------------------------

(define_expand "iorsi3"
  [(set (match_operand:SI 0 "register_operand" "")
	(ior:SI (match_operand:SI 1 "register_operand" "")
		(match_operand:SI 2 "nonmemory_operand" "")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx,!dax")
	(ior:SI (match_operand:SI 1 "register_operand" "%0,dax")
		(match_operand:SI 2 "nonmemory_operand" "dxi,dax")))]
  "TARGET_AM33"
  "*
{
  if (REG_P (operands[2]) && REG_P (operands[1])
      && true_regnum (operands[0]) != true_regnum (operands[1])
      && true_regnum (operands[0]) != true_regnum (operands[2])
      && REGNO_REG_CLASS (true_regnum (operands[0])) == DATA_REGS
      && REGNO_REG_CLASS (true_regnum (operands[1])) == DATA_REGS
      && REGNO_REG_CLASS (true_regnum (operands[2])) == DATA_REGS)
    return \"mov %1,%0\;or %2,%0\";
  if (REG_P (operands[2]) && REG_P (operands[1])
      && true_regnum (operands[0]) != true_regnum (operands[1])
      && true_regnum (operands[0]) != true_regnum (operands[2]))
    return \"or %1,%2,%0\";
  if (REG_P (operands[2]) && REG_P (operands[0])
      && true_regnum (operands[2]) == true_regnum (operands[0]))
    return \"or %1,%0\";
  return \"or %2,%0\";
}"
  [(set_attr "cc" "set_znv")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx")
	(ior:SI (match_operand:SI 1 "register_operand" "%0")
		(match_operand:SI 2 "nonmemory_operand" "dxi")))]
  ""
  "or %2,%0"
  [(set_attr "cc" "set_znv")])

;; ----------------------------------------------------------------------
;; XOR INSTRUCTIONS
;; ----------------------------------------------------------------------

(define_expand "xorsi3"
  [(set (match_operand:SI 0 "register_operand" "")
	(xor:SI (match_operand:SI 1 "register_operand" "")
		(match_operand:SI 2 "nonmemory_operand" "")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx,!dax")
	(xor:SI (match_operand:SI 1 "register_operand" "%0,dax")
		(match_operand:SI 2 "nonmemory_operand" "dxi,dax")))]
  "TARGET_AM33"
  "*
{
  if (REG_P (operands[2]) && REG_P (operands[1])
      && true_regnum (operands[0]) != true_regnum (operands[1])
      && true_regnum (operands[0]) != true_regnum (operands[2])
      && REGNO_REG_CLASS (true_regnum (operands[0])) == DATA_REGS
      && REGNO_REG_CLASS (true_regnum (operands[1])) == DATA_REGS
      && REGNO_REG_CLASS (true_regnum (operands[2])) == DATA_REGS)
    return \"mov %1,%0\;xor %2,%0\";
  if (REG_P (operands[2]) && REG_P (operands[1])
      && true_regnum (operands[0]) != true_regnum (operands[1])
      && true_regnum (operands[0]) != true_regnum (operands[2]))
    return \"xor %1,%2,%0\";
  if (REG_P (operands[2]) && REG_P (operands[0])
      && true_regnum (operands[2]) == true_regnum (operands[0]))
    return \"xor %1,%0\";
  return \"xor %2,%0\";
}"
  [(set_attr "cc" "set_znv")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx")
	(xor:SI (match_operand:SI 1 "register_operand" "%0")
		(match_operand:SI 2 "nonmemory_operand" "dxi")))]
  ""
  "xor %2,%0"
  [(set_attr "cc" "set_znv")])

;; ----------------------------------------------------------------------
;; NOT INSTRUCTIONS
;; ----------------------------------------------------------------------

(define_expand "one_cmplsi2"
  [(set (match_operand:SI 0 "register_operand" "")
	(not:SI (match_operand:SI 1 "register_operand" "")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx,!dax")
	(not:SI (match_operand:SI 1 "register_operand" "0,0")))]
  "TARGET_AM33"
  "not %0"
  [(set_attr "cc" "set_znv")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx")
	(not:SI (match_operand:SI 1 "register_operand" "0")))]
  ""
  "not %0"
  [(set_attr "cc" "set_znv")])

;; -----------------------------------------------------------------
;; BIT FIELDS
;; -----------------------------------------------------------------


;; These set/clear memory in byte sized chunks.
;;
;; They are no smaller/faster than loading the value into a register
;; and storing the register, but they don't need a scratch register
;; which may allow for better code generation.
(define_insn ""
  [(set (match_operand:QI 0 "nonimmediate_operand" "=R,d") (const_int 0))]
  ""
  "@
  bclr 255,%A0
  clr %0"
  [(set_attr "cc" "clobber")])

(define_insn ""
  [(set (match_operand:QI 0 "nonimmediate_operand" "=R,d") (const_int -1))]
  ""
  "@
  bset 255,%A0
  mov -1,%0"
  [(set_attr "cc" "clobber,none_0hit")])

(define_insn ""
  [(set (match_operand:QI 0 "nonimmediate_operand" "+R,d")
	(subreg:QI
	  (and:SI (subreg:SI (match_dup 0) 0)
		  (match_operand:SI 1 "const_int_operand" "i,i")) 0))]
  ""
  "@
  bclr %N1,%A0
  and %1,%0"
  [(set_attr "cc" "clobber,set_znv")])

(define_insn ""
  [(set (match_operand:QI 0 "nonimmediate_operand" "+R,d")
	(subreg:QI
	  (ior:SI (subreg:SI (match_dup 0) 0)
		  (match_operand:SI 1 "const_int_operand" "i,i")) 0))]
  ""
  "@
  bset %1,%A0
  or %1,%0"
  [(set_attr "cc" "clobber,set_znv")])

(define_insn ""
  [(set (cc0)
     (zero_extract:SI (match_operand:SI 0 "register_operand" "dx")
		      (match_operand 1 "const_int_operand" "")
		      (match_operand 2 "const_int_operand" "")))]
  ""
  "*
{
  int len = INTVAL (operands[1]);
  int bit = INTVAL (operands[2]);
  int mask = 0;
  rtx xoperands[2];

  while (len > 0)
    {
      mask |= (1 << bit);
      bit++;
      len--;
    }

  xoperands[0] = operands[0];
  xoperands[1] = GEN_INT (mask);
  output_asm_insn (\"btst %1,%0\", xoperands);
  return \"\";
}"
  [(set_attr "cc" "clobber")])

(define_insn ""
  [(set (cc0)
     (zero_extract:SI (match_operand:QI 0 "general_operand" "R,dx")
		      (match_operand 1 "const_int_operand" "")
		      (match_operand 2 "const_int_operand" "")))]
  "mask_ok_for_mem_btst (INTVAL (operands[1]), INTVAL (operands[2]))"
  "*
{
  int len = INTVAL (operands[1]);
  int bit = INTVAL (operands[2]);
  int mask = 0;
  rtx xoperands[2];

  while (len > 0)
    {
      mask |= (1 << bit);
      bit++;
      len--;
    }

  /* If the source operand is not a reg (ie it is memory), then extract the
     bits from mask that we actually want to test.  Note that the mask will
     never cross a byte boundary.  */
  if (!REG_P (operands[0]))
    {
      if (mask & 0xff)
	mask = mask & 0xff;
      else if (mask & 0xff00)
	mask = (mask >> 8) & 0xff;
      else if (mask & 0xff0000)
	mask = (mask >> 16) & 0xff;
      else if (mask & 0xff000000)
	mask = (mask >> 24) & 0xff;
    }
  
  xoperands[0] = operands[0];
  xoperands[1] = GEN_INT (mask);
  if (GET_CODE (operands[0]) == REG)
    output_asm_insn (\"btst %1,%0\", xoperands);
  else
    output_asm_insn (\"btst %1,%A0\", xoperands);
  return \"\";
}"
  [(set_attr "cc" "clobber")])

(define_insn ""
  [(set (cc0) (and:SI (match_operand:SI 0 "register_operand" "dx")
		      (match_operand:SI 1 "const_int_operand" "")))]
  ""
  "btst %1,%0"
  [(set_attr "cc" "clobber")])

(define_insn ""
  [(set (cc0)
     (and:SI
       (subreg:SI (match_operand:QI 0 "general_operand" "R,dx") 0)
       (match_operand:SI 1 "const_8bit_operand" "")))]
  ""
  "@
  btst %1,%A0
  btst %1,%0"
  [(set_attr "cc" "clobber")])


;; ----------------------------------------------------------------------
;; JUMP INSTRUCTIONS
;; ----------------------------------------------------------------------

;; Conditional jump instructions

(define_expand "ble"
  [(set (pc)
	(if_then_else (le (cc0)
			  (const_int 0))
		      (label_ref (match_operand 0 "" ""))
		      (pc)))]
  ""
  "")

(define_expand "bleu"
  [(set (pc)
	(if_then_else (leu (cc0)
			   (const_int 0))
		      (label_ref (match_operand 0 "" ""))
		      (pc)))]
  ""
  "")

(define_expand "bge"
  [(set (pc)
	(if_then_else (ge (cc0)
			  (const_int 0))
		      (label_ref (match_operand 0 "" ""))
		      (pc)))]
  ""
  "")

(define_expand "bgeu"
  [(set (pc)
	(if_then_else (geu (cc0)
			   (const_int 0))
		      (label_ref (match_operand 0 "" ""))
		      (pc)))]
  ""
  "")

(define_expand "blt"
  [(set (pc)
	(if_then_else (lt (cc0)
			  (const_int 0))
		      (label_ref (match_operand 0 "" ""))
		      (pc)))]
  ""
  "")

(define_expand "bltu"
  [(set (pc)
	(if_then_else (ltu (cc0)
			   (const_int 0))
		      (label_ref (match_operand 0 "" ""))
		      (pc)))]
  ""
  "")

(define_expand "bgt"
  [(set (pc)
	(if_then_else (gt (cc0)
			  (const_int 0))
		      (label_ref (match_operand 0 "" ""))
		      (pc)))]
  ""
  "")

(define_expand "bgtu"
  [(set (pc)
	(if_then_else (gtu (cc0)
			   (const_int 0))
		      (label_ref (match_operand 0 "" ""))
		      (pc)))]
  ""
  "")

(define_expand "beq"
  [(set (pc)
	(if_then_else (eq (cc0)
			  (const_int 0))
		      (label_ref (match_operand 0 "" ""))
		      (pc)))]
  ""
  "")

(define_expand "bne"
  [(set (pc)
	(if_then_else (ne (cc0)
			  (const_int 0))
		      (label_ref (match_operand 0 "" ""))
		      (pc)))]
  ""
  "")

(define_insn ""
  [(set (pc)
	(if_then_else (match_operator 1 "comparison_operator"
				      [(cc0) (const_int 0)])
		      (label_ref (match_operand 0 "" ""))
		      (pc)))]
  ""
  "*
{
  if ((cc_status.flags & CC_OVERFLOW_UNUSABLE) != 0
      && (GET_CODE (operands[1]) == GT
	  || GET_CODE (operands[1]) == GE
	  || GET_CODE (operands[1]) == LE
	  || GET_CODE (operands[1]) == LT))
    return 0;
  return \"b%b1 %0\";
}"
 [(set_attr "cc" "none")])

(define_insn ""
  [(set (pc)
	(if_then_else (match_operator 1 "comparison_operator"
				      [(cc0) (const_int 0)])
		      (pc)
		      (label_ref (match_operand 0 "" ""))))]
  ""
  "*
{
  if ((cc_status.flags & CC_OVERFLOW_UNUSABLE) != 0
      && (GET_CODE (operands[1]) == GT
	  || GET_CODE (operands[1]) == GE
	  || GET_CODE (operands[1]) == LE
	  || GET_CODE (operands[1]) == LT))
    return 0;
  return \"b%B1 %0\";
}"
 [(set_attr "cc" "none")])

;; Unconditional and other jump instructions.

(define_insn "jump"
  [(set (pc)
	(label_ref (match_operand 0 "" "")))]
  ""
  "jmp %l0"
 [(set_attr "cc" "none")])

(define_insn "indirect_jump"
  [(set (pc) (match_operand:SI 0 "register_operand" "a"))]
  ""
  "jmp (%0)"
  [(set_attr "cc" "none")])

(define_insn "tablejump"
  [(set (pc) (match_operand:SI 0 "register_operand" "a"))
   (use (label_ref (match_operand 1 "" "")))]
  ""
  "jmp  (%0)"
  [(set_attr "cc" "none")])

;; Call subroutine with no return value.

(define_expand "call"
  [(call (match_operand:QI 0 "general_operand" "")
	 (match_operand:SI 1 "general_operand" ""))]
  ""
  "
{
  if (! call_address_operand (XEXP (operands[0], 0), VOIDmode))
    XEXP (operands[0], 0) = force_reg (SImode, XEXP (operands[0], 0));
  emit_call_insn (gen_call_internal (XEXP (operands[0], 0), operands[1]));
  DONE;
}")

(define_insn "call_internal"
  [(call (mem:QI (match_operand:SI 0 "call_address_operand" "aS"))
	 (match_operand:SI 1 "general_operand" "g"))]
  ""
  "*
{
  if (REG_P (operands[0]))
    return \"calls %C0\";
  else
    return \"call %C0,[],0\";
}"
  [(set_attr "cc" "clobber")])

;; Call subroutine, returning value in operand 0
;; (which must be a hard register).

(define_expand "call_value"
  [(set (match_operand 0 "" "")
	(call (match_operand:QI 1 "general_operand" "")
	      (match_operand:SI 2 "general_operand" "")))]
  ""
  "
{
  if (! call_address_operand (XEXP (operands[1], 0), VOIDmode))
    XEXP (operands[1], 0) = force_reg (SImode, XEXP (operands[1], 0));
  emit_call_insn (gen_call_value_internal (operands[0],
					   XEXP (operands[1], 0),
					   operands[2]));
  DONE;
}")

(define_insn "call_value_internal"
  [(set (match_operand 0 "" "=dax")
	(call (mem:QI (match_operand:SI 1 "call_address_operand" "aS"))
	      (match_operand:SI 2 "general_operand" "g")))]
  ""
  "*
{
  if (REG_P (operands[1]))
    return \"calls %C1\";
  else
    return \"call %C1,[],0\";
}"
  [(set_attr "cc" "clobber")])

(define_expand "untyped_call"
  [(parallel [(call (match_operand 0 "" "")
                    (const_int 0))
              (match_operand 1 "" "")
              (match_operand 2 "" "")])]
  ""
  "
{
  int i;

  emit_call_insn (gen_call (operands[0], const0_rtx));

  for (i = 0; i < XVECLEN (operands[2], 0); i++)
    {
      rtx set = XVECEXP (operands[2], 0, i);
      emit_move_insn (SET_DEST (set), SET_SRC (set));
    }
  DONE;
}")

(define_insn "nop"
  [(const_int 0)]
  ""
  "nop"
  [(set_attr "cc" "none")])

;; ----------------------------------------------------------------------
;; EXTEND INSTRUCTIONS
;; ----------------------------------------------------------------------

(define_expand "zero_extendqisi2"
  [(set (match_operand:SI 0 "general_operand" "")
	(zero_extend:SI
	 (match_operand:QI 1 "general_operand" "")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "nonimmediate_operand" "=dx,dx,dx,!dax,!dax,!dax")
	(zero_extend:SI
	 (match_operand:QI 1 "general_operand" "0,dax,m,0,dax,m")))]
  "TARGET_AM33"
  "@
  extbu %0
  mov %1,%0\;extbu %0
  movbu %1,%0
  extbu %0
  mov %1,%0\;extbu %0
  movbu %1,%0"
  [(set_attr "cc" "none_0hit")])

(define_insn ""
  [(set (match_operand:SI 0 "nonimmediate_operand" "=dx,dx,dx")
	(zero_extend:SI
	 (match_operand:QI 1 "general_operand" "0,d,m")))]
  ""
  "@
  extbu %0
  mov %1,%0\;extbu %0
  movbu %1,%0"
  [(set_attr "cc" "none_0hit")])

(define_expand "zero_extendhisi2"
  [(set (match_operand:SI 0 "general_operand" "")
	(zero_extend:SI
	 (match_operand:HI 1 "general_operand" "")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "nonimmediate_operand" "=dx,dx,dx,!dax,!dax,!dax")
	(zero_extend:SI
	 (match_operand:HI 1 "general_operand" "0,dax,m,0,dax,m")))]
  "TARGET_AM33"
  "@
  exthu %0
  mov %1,%0\;exthu %0
  movhu %1,%0
  exthu %0
  mov %1,%0\;exthu %0
  movhu %1,%0"
  [(set_attr "cc" "none_0hit")])

(define_insn ""
  [(set (match_operand:SI 0 "nonimmediate_operand" "=dx,dx,dx")
	(zero_extend:SI
	 (match_operand:HI 1 "general_operand" "0,dx,m")))]
  ""
  "@
  exthu %0
  mov %1,%0\;exthu %0
  movhu %1,%0"
  [(set_attr "cc" "none_0hit")])

;;- sign extension instructions

(define_expand "extendqisi2"
  [(set (match_operand:SI 0 "general_operand" "")
	(sign_extend:SI
	 (match_operand:QI 1 "general_operand" "")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "nonimmediate_operand" "=dx,dx,!dax,!dax")
	(sign_extend:SI
	 (match_operand:QI 1 "general_operand" "0,dx,0,dax")))]
  "TARGET_AM33"
  "@
  extb %0
  mov %1,%0\;extb %0
  extb %0
  mov %1,%0\;extb %0"
  [(set_attr "cc" "none_0hit")])

(define_insn ""
  [(set (match_operand:SI 0 "nonimmediate_operand" "=dx,dx")
	(sign_extend:SI
	 (match_operand:QI 1 "general_operand" "0,dx")))]
  ""
  "@
  extb %0
  mov %1,%0\;extb %0"
  [(set_attr "cc" "none_0hit")])

(define_expand "extendhisi2"
  [(set (match_operand:SI 0 "general_operand" "")
	(sign_extend:SI
	 (match_operand:HI 1 "general_operand" "")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "nonimmediate_operand" "=dx,dx,!dax,!dax")
	(sign_extend:SI
	 (match_operand:HI 1 "general_operand" "0,dax,0,dax")))]
  "TARGET_AM33"
  "@
  exth %0
  mov %1,%0\;exth %0
  exth %0
  mov %1,%0\;exth %0"
  [(set_attr "cc" "none_0hit")])

(define_insn ""
  [(set (match_operand:SI 0 "nonimmediate_operand" "=dx,dx")
	(sign_extend:SI
	 (match_operand:HI 1 "general_operand" "0,dx")))]
  ""
  "@
  exth %0
  mov %1,%0\;exth %0"
  [(set_attr "cc" "none_0hit")])

;; ----------------------------------------------------------------------
;; SHIFTS
;; ----------------------------------------------------------------------

(define_expand "ashlsi3"
  [(set (match_operand:SI 0 "register_operand" "")
	(ashift:SI
	 (match_operand:SI 1 "register_operand" "")
	 (match_operand:QI 2 "nonmemory_operand" "")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dax,dx,!dax")
	(ashift:SI
	 (match_operand:SI 1 "register_operand" "0,0,dax")
	 (match_operand:QI 2 "nonmemory_operand" "J,dxi,dax")))]
  "TARGET_AM33"
  "*
{
  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 1)
    return \"add %0,%0\";

  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 2)
    return \"asl2 %0\";

  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 3
      && REGNO_REG_CLASS (true_regnum (operands[0])) == DATA_REGS)
    return \"asl2 %0\;add %0,%0\";

  if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 4
      && REGNO_REG_CLASS (true_regnum (operands[0])) == DATA_REGS)
    return \"asl2 %0\;asl2 %0\";

  if (true_regnum (operands[1]) == true_regnum (operands[0]))
    return \"asl %S2,%0\";

  if (REGNO_REG_CLASS (true_regnum (operands[0])) == DATA_REGS
      && REGNO_REG_CLASS (true_regnum (operands[1])) == DATA_REGS
      && true_regnum (operands[0]) != true_regnum (operands[2]))
    return \"mov %1,%0\;asl %S2,%0\";
  return \"asl %2,%1,%0\";
}"
  [(set_attr "cc" "set_zn")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dax,dx,dx,dx,dx")
	(ashift:SI
	 (match_operand:SI 1 "register_operand" "0,0,0,0,0")
	 (match_operand:QI 2 "nonmemory_operand" "J,K,M,L,dxi")))]
  ""
  "@
  add %0,%0
  asl2 %0
  asl2 %0\;add %0,%0
  asl2 %0\;asl2 %0
  asl %S2,%0"
  [(set_attr "cc" "set_zn")])

(define_expand "lshrsi3"
  [(set (match_operand:SI 0 "register_operand" "")
	(lshiftrt:SI
	 (match_operand:SI 1 "register_operand" "")
	 (match_operand:QI 2 "nonmemory_operand" "")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx,!dax")
	(lshiftrt:SI
	 (match_operand:SI 1 "register_operand" "0,dax")
	 (match_operand:QI 2 "nonmemory_operand" "dxi,dax")))]
  "TARGET_AM33"
  "*
{
  if (true_regnum (operands[1]) == true_regnum (operands[0]))
    return \"lsr %S2,%0\";

  if (REGNO_REG_CLASS (true_regnum (operands[0])) == DATA_REGS
      && REGNO_REG_CLASS (true_regnum (operands[1])) == DATA_REGS
      && true_regnum (operands[0]) != true_regnum (operands[2]))
    return \"mov %1,%0\;lsr %S2,%0\";
  return \"lsr %2,%1,%0\";
}"
  [(set_attr "cc" "set_zn")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx")
	(lshiftrt:SI
	 (match_operand:SI 1 "register_operand" "0")
	 (match_operand:QI 2 "nonmemory_operand" "dxi")))]
  ""
  "lsr %S2,%0"
  [(set_attr "cc" "set_zn")])

(define_expand "ashrsi3"
  [(set (match_operand:SI 0 "register_operand" "")
	(ashiftrt:SI
	 (match_operand:SI 1 "register_operand" "")
	 (match_operand:QI 2 "nonmemory_operand" "")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx,!dax")
	(ashiftrt:SI
	 (match_operand:SI 1 "register_operand" "0,dax")
	 (match_operand:QI 2 "nonmemory_operand" "dxi,dax")))]
  "TARGET_AM33"
  "*
{
  if (true_regnum (operands[1]) == true_regnum (operands[0]))
    return \"asr %S2,%0\";

  if (REGNO_REG_CLASS (true_regnum (operands[0])) == DATA_REGS
      && REGNO_REG_CLASS (true_regnum (operands[1])) == DATA_REGS
      && true_regnum (operands[0]) != true_regnum (operands[2]))
    return \"mov %1,%0\;asr %S2,%0\";
  return \"asr %2,%1,%0\";
}"
  [(set_attr "cc" "set_zn")])

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=dx")
	(ashiftrt:SI
	 (match_operand:SI 1 "register_operand" "0")
	 (match_operand:QI 2 "nonmemory_operand" "dxi")))]
  ""
  "asr %S2,%0"
  [(set_attr "cc" "set_zn")])

;; ----------------------------------------------------------------------
;; FP INSTRUCTIONS
;; ----------------------------------------------------------------------
;;
;; The mn103 series does not have floating point instructions, but since
;; FP values are held in integer regs, we can clear the high bit easily
;; which gives us an efficient inline floating point absolute value.
;;
;; Similarly for negation of a FP value.
;;

(define_expand "absdf2"
  [(set (match_operand:DF 0 "register_operand" "")
        (abs:DF (match_operand:DF 1 "register_operand" "")))]
  ""
  "
{
  rtx target, result, insns;

  start_sequence ();
  target = operand_subword (operands[0], 1, 1, DFmode);
  result = expand_binop (SImode, and_optab,
			 operand_subword_force (operands[1], 1, DFmode),
			 GEN_INT(0x7fffffff), target, 0, OPTAB_WIDEN);

  if (result == 0)
    abort ();

  if (result != target)
    emit_move_insn (result, target);

  emit_move_insn (operand_subword (operands[0], 0, 1, DFmode),
		  operand_subword_force (operands[1], 0, DFmode));

  insns = get_insns ();
  end_sequence ();

  emit_no_conflict_block (insns, operands[0], operands[1], 0, 0);
  DONE;
}")

(define_expand "abssf2"
  [(set (match_operand:SF 0 "register_operand" "")
        (abs:SF (match_operand:SF 1 "register_operand" "")))]
  ""
  "
{
  rtx result;
  rtx target;

  target = operand_subword_force (operands[0], 0, SFmode);
  result = expand_binop (SImode, and_optab,
			 operand_subword_force (operands[1], 0, SFmode),
			 GEN_INT(0x7fffffff), target, 0, OPTAB_WIDEN);
  if (result == 0)
    abort ();

  if (result != target)
    emit_move_insn (result, target);

  /* Make a place for REG_EQUAL.  */
  emit_move_insn (operands[0], operands[0]);
  DONE;
}")


(define_expand "negdf2"
  [(set (match_operand:DF 0 "register_operand" "")
        (neg:DF (match_operand:DF 1 "register_operand" "")))]
  ""
  "
{
  rtx target, result, insns;

  start_sequence ();
  target = operand_subword (operands[0], 1, 1, DFmode);
  result = expand_binop (SImode, xor_optab,
			 operand_subword_force (operands[1], 1, DFmode),
			 GEN_INT(0x80000000), target, 0, OPTAB_WIDEN);

  if (result == 0)
    abort ();

  if (result != target)
    emit_move_insn (result, target);

  emit_move_insn (operand_subword (operands[0], 0, 1, DFmode),
		  operand_subword_force (operands[1], 0, DFmode));

  insns = get_insns ();
  end_sequence ();

  emit_no_conflict_block (insns, operands[0], operands[1], 0, 0);
  DONE;
}")

(define_expand "negsf2"
  [(set (match_operand:SF 0 "register_operand" "")
        (neg:SF (match_operand:SF 1 "register_operand" "")))]
  ""
  "
{
  rtx result;
  rtx target;

  target = operand_subword_force (operands[0], 0, SFmode);
  result = expand_binop (SImode, xor_optab,
			 operand_subword_force (operands[1], 0, SFmode),
			 GEN_INT(0x80000000), target, 0, OPTAB_WIDEN);
  if (result == 0)
    abort ();

  if (result != target)
    emit_move_insn (result, target);

  /* Make a place for REG_EQUAL.  */
  emit_move_insn (operands[0], operands[0]);
  DONE;
}")


;; ----------------------------------------------------------------------
;; PROLOGUE/EPILOGUE
;; ----------------------------------------------------------------------
(define_expand "prologue"
  [(const_int 0)]
  ""
  "expand_prologue (); DONE;")

(define_expand "epilogue"
  [(return)]
  ""
  "
{
  expand_epilogue ();
  DONE;
}")

(define_insn "return_internal"
  [(const_int 2)
   (return)]
  ""
  "rets"
  [(set_attr "cc" "clobber")])

;; This insn restores the callee saved registers and does a return, it
;; can also deallocate stack space.
(define_insn "return_internal_regs"
  [(const_int 0)
   (match_operand:SI 0  "const_int_operand" "i")
   (return)]
  ""
  "*
{
  fputs (\"\\tret \", asm_out_file);
  mn10300_print_reg_list (asm_out_file, mn10300_get_live_callee_saved_regs ());
  fprintf (asm_out_file, \",%d\\n\", (int) INTVAL (operands[0]));
  return \"\";
}"
  [(set_attr "cc" "clobber")])

;; This instruction matches one generated by mn10300_gen_multiple_store()
(define_insn "store_movm"
  [(match_parallel 0 "store_multiple_operation"
    [(set (reg:SI 9) (plus:SI (reg:SI 9) (match_operand 1 "" "")))])]
  ""
  "*
{
  fputs (\"\\tmovm \", asm_out_file);
  mn10300_print_reg_list (asm_out_file,
                          store_multiple_operation (operands[0], VOIDmode));
  fprintf (asm_out_file, \",(sp)\\n\");
  return \"\";
}"
  [(set_attr "cc" "clobber")])
  
(define_insn "return"
  [(return)]
  "can_use_return_insn ()"
  "*
{
  rtx next = next_active_insn (insn);

  if (next
      && GET_CODE (next) == JUMP_INSN
      && GET_CODE (PATTERN (next)) == RETURN)
    return \"\";
  else
    return \"rets\";
}"
  [(set_attr "cc" "clobber")])

;; Try to combine consecutive updates of the stack pointer (or any
;; other register for that matter).
(define_peephole
  [(set (match_operand:SI 0 "register_operand" "=dxay")
	(plus:SI (match_dup 0)
		 (match_operand 1 "const_int_operand" "")))
   (set (match_dup 0)
	(plus:SI (match_dup 0)
		 (match_operand 2 "const_int_operand" "")))]
  ""
  "*
{
  operands[1] = GEN_INT (INTVAL (operands[2]) + INTVAL (operands[1]));
  return \"add %1,%0\";
}"
  [(set_attr "cc" "clobber")])

;;
;; We had patterns to check eq/ne, but the they don't work because
;; 0x80000000 + 0x80000000 = 0x0 with a carry out.
;;
;; The Z flag and C flag would be set, and we have no way to
;; check for the Z flag set and C flag clear.
;;
;; This will work on the mn10200 because we can check the ZX flag
;; if the comparison is in HImode.
(define_peephole
  [(set (cc0) (match_operand:SI 0 "register_operand" "dx"))
   (set (pc) (if_then_else (ge (cc0) (const_int 0))
			   (match_operand 1 "" "")
			   (pc)))]
  "dead_or_set_p (ins1, operands[0]) && REG_OK_FOR_INDEX_P (operands[0])"
  "add %0,%0\;bcc %1"
  [(set_attr "cc" "clobber")])

(define_peephole
  [(set (cc0) (match_operand:SI 0 "register_operand" "dx"))
   (set (pc) (if_then_else (lt (cc0) (const_int 0))
			   (match_operand 1 "" "")
			   (pc)))]
  "dead_or_set_p (ins1, operands[0]) && REG_OK_FOR_INDEX_P (operands[0])"
  "add %0,%0\;bcs %1"
  [(set_attr "cc" "clobber")])

(define_peephole
  [(set (cc0) (match_operand:SI 0 "register_operand" "dx"))
   (set (pc) (if_then_else (ge (cc0) (const_int 0))
			   (pc)
			   (match_operand 1 "" "")))]
  "dead_or_set_p (ins1, operands[0]) && REG_OK_FOR_INDEX_P (operands[0])"
  "add %0,%0\;bcs %1"
  [(set_attr "cc" "clobber")])

(define_peephole
  [(set (cc0) (match_operand:SI 0 "register_operand" "dx"))
   (set (pc) (if_then_else (lt (cc0) (const_int 0))
			   (pc)
			   (match_operand 1 "" "")))]
  "dead_or_set_p (ins1, operands[0]) && REG_OK_FOR_INDEX_P (operands[0])"
  "add %0,%0\;bcc %1"
  [(set_attr "cc" "clobber")])

