;;  iq2000.md	     Machine Description for Vitesse IQ2000 processors
;;  Copyright (C) 2003-2020 Free Software Foundation, Inc.

;; This file is part of GCC.

;; GCC 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 3, or (at your option)
;; any later version.

;; GCC 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 GCC; see the file COPYING3.  If not see
;; <http://www.gnu.org/licenses/>.

(define_constants
  [(UNSPEC_ADO16 0)
   (UNSPEC_RAM	1)
   (UNSPEC_CHKHDR 2)
   (UNSPEC_PKRL	3)
   (UNSPEC_CFC0	4)
   (UNSPEC_CFC1	5)
   (UNSPEC_CFC2	6)
   (UNSPEC_CFC3	7)
   (UNSPEC_CTC0	8)
   (UNSPEC_CTC1	9)
   (UNSPEC_CTC2	10)
   (UNSPEC_CTC3	11)
   (UNSPEC_MFC0	12)
   (UNSPEC_MFC1	13)
   (UNSPEC_MFC2	14)
   (UNSPEC_MFC3	15)
   (UNSPEC_MTC0	16)
   (UNSPEC_MTC1	17)
   (UNSPEC_MTC2	18)
   (UNSPEC_MTC3	19)
   (UNSPEC_LUR	20)
   (UNSPEC_RB	21)
   (UNSPEC_RX	22)
   (UNSPEC_SRRD	23)
   (UNSPEC_SRWR	24)
   (UNSPEC_WB	25)
   (UNSPEC_WX	26)
   (UNSPEC_LUC32 49)
   (UNSPEC_LUC32L 27)
   (UNSPEC_LUC64 28)
   (UNSPEC_LUC64L 29)
   (UNSPEC_LUK 30)
   (UNSPEC_LULCK 31)
   (UNSPEC_LUM32 32)
   (UNSPEC_LUM32L 33)
   (UNSPEC_LUM64 34)
   (UNSPEC_LUM64L 35)
   (UNSPEC_LURL 36)
   (UNSPEC_MRGB 37)
   (UNSPEC_SRRDL 38)
   (UNSPEC_SRULCK 39)
   (UNSPEC_SRWRU 40)
   (UNSPEC_TRAPQFL 41)
   (UNSPEC_TRAPQNE 42)
   (UNSPEC_TRAPREL 43)
   (UNSPEC_WBU 44)
   (UNSPEC_SYSCALL 45)]
)
;; UNSPEC values used in iq2000.md
;; Number	USE
;; 0		movsi_ul
;; 1		movsi_us, get_fnaddr
;; 3		eh_set_return
;; 20		builtin_setjmp_setup
;;
;; UNSPEC_VOLATILE values
;; 0		blockage
;; 2		loadgp
;; 3		builtin_longjmp
;; 4		exception_receiver
;; 10		consttable_qi
;; 11		consttable_hi
;; 12		consttable_si
;; 13		consttable_di
;; 14		consttable_sf
;; 15		consttable_df
;; 16		align_2
;; 17		align_4
;; 18		align_8


;; ....................
;;
;;	Attributes
;;
;; ....................

;; Classification of each insn.
;; branch	conditional branch
;; jump		unconditional jump
;; call		unconditional call
;; load		load instruction(s)
;; store	store instruction(s)
;; move		data movement within same register set
;; xfer		transfer to/from coprocessor
;; arith	integer arithmetic instruction
;; darith	double precision integer arithmetic instructions
;; imul		integer multiply
;; idiv		integer divide
;; icmp		integer compare
;; fadd		floating point add/subtract
;; fmul		floating point multiply
;; fmadd	floating point multiply-add
;; fdiv		floating point divide
;; fabs		floating point absolute value
;; fneg		floating point negation
;; fcmp		floating point compare
;; fcvt		floating point convert
;; fsqrt	floating point square root
;; multi	multiword sequence (or user asm statements)
;; nop		no operation

(define_attr "type"
  "unknown,branch,jump,call,load,store,move,xfer,arith,darith,imul,idiv,icmp,fadd,fmul,fmadd,fdiv,fabs,fneg,fcmp,fcvt,fsqrt,multi,nop"
  (const_string "unknown"))

;; Main data type used by the insn
(define_attr "mode" "unknown,none,QI,HI,SI,DI,SF,DF,FPSW" (const_string "unknown"))

;; Length (in # of bytes).  A conditional branch is allowed only to a
;; location within a signed 18-bit offset of the delay slot.  If that
;; provides too small a range, we use the `j' instruction.  This
;; instruction takes a 28-bit value, but that value is not an offset.
;; Instead, it's bitwise-ored with the high-order four bits of the
;; instruction in the delay slot, which means it cannot be used to
;; cross a 256MB boundary.  We could fall back on the jr
;; instruction which allows full access to the entire address space,
;; but we do not do so at present.

(define_attr "length" ""
   (cond [(eq_attr "type" "branch")
          (cond [(lt (abs (minus (match_dup 1) (plus (pc) (const_int 4))))
                     (const_int 131072))
                 (const_int 4)]
	         (const_int 12))]
          (const_int 4)))

(define_attr "cpu"
  "default,iq2000"
  (const (symbol_ref "iq2000_cpu_attr")))

;; Does the instruction have a mandatory delay slot? has_dslot
;; Can the instruction be in a delay slot? ok_in_dslot
;; Can the instruction not be in a delay slot? not_in_dslot
(define_attr "dslot" "has_dslot,ok_in_dslot,not_in_dslot"
  (if_then_else (eq_attr "type" "branch,jump,call,xfer,fcmp")
		(const_string "has_dslot")
		(const_string "ok_in_dslot")))

;; Attribute defining whether or not we can use the branch-likely instructions

(define_attr "branch_likely" "no,yes"
  (const
   (if_then_else (match_test "GENERATE_BRANCHLIKELY")
		 (const_string "yes")
		 (const_string "no"))))


;; Describe a user's asm statement.
(define_asm_attributes
  [(set_attr "type" "multi")])



;; .........................
;;
;;	Delay slots, can't describe load/fcmp/xfer delay slots here
;;
;; .........................

(define_delay (eq_attr "type" "jump")
  [(and (eq_attr "dslot" "ok_in_dslot") (eq_attr "length" "4"))
   (nil)
   (nil)])

(define_delay (eq_attr "type" "branch")
  [(and (eq_attr "dslot" "ok_in_dslot") (eq_attr "length" "4"))
   (nil)
   (and (eq_attr "branch_likely" "yes") (and (eq_attr "dslot" "ok_in_dslot") (eq_attr "length" "4")))])

(define_delay (eq_attr "type" "call")
  [(and (eq_attr "dslot" "ok_in_dslot") (eq_attr "length" "4"))
   (nil)
   (nil)])

(include "predicates.md")
(include "constraints.md")


;; .........................
;;
;;	Pipeline model
;;
;; .........................

(define_automaton "iq2000")
(define_cpu_unit "core,memory" "iq2000")

(define_insn_reservation "nonmemory" 1
  (eq_attr "type" "!load,move,store,xfer")
  "core")

(define_insn_reservation "iq2000_load_move" 3
  (and (eq_attr "type" "load,move")
       (eq_attr "cpu" "iq2000"))
  "memory")

(define_insn_reservation "other_load_move" 1
  (and (eq_attr "type" "load,move")
       (eq_attr "cpu" "!iq2000"))
  "memory")

(define_insn_reservation "store" 1
  (eq_attr "type" "store")
  "memory")

(define_insn_reservation "xfer" 2
  (eq_attr "type" "xfer")
  "memory")

;;
;;  ....................
;;
;;	CONDITIONAL TRAPS
;;
;;  ....................
;;

(define_insn "trap"
  [(trap_if (const_int 1) (const_int 0))]
  ""
  "*
{
  return \"break\";
}")

;;
;;  ....................
;;
;;	ADDITION
;;
;;  ....................
;;

(define_expand "addsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(plus:SI (match_operand:SI 1 "reg_or_0_operand" "dJ")
		 (match_operand:SI 2 "arith_operand" "dI")))]
  ""
  "")

(define_insn "addsi3_internal"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
	(plus:SI (match_operand:SI 1 "reg_or_0_operand" "dJ,dJ")
		 (match_operand:SI 2 "arith_operand" "d,I")))]
  ""
  "@
   addu\\t%0,%z1,%2
   addiu\\t%0,%z1,%2"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

;;
;;  ....................
;;
;;	SUBTRACTION
;;
;;  ....................
;;

(define_expand "subsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(minus:SI (match_operand:SI 1 "reg_or_0_operand" "dJ")
		  (match_operand:SI 2 "arith_operand" "dI")))]
  ""
  "")

(define_insn "subsi3_internal"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
	(minus:SI (match_operand:SI 1 "reg_or_0_operand" "dJ,dJ")
		  (match_operand:SI 2 "arith_operand" "d,I")))]
  ""
  "@
   subu\\t%0,%z1,%2
   addiu\\t%0,%z1,%n2"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

;;
;;  ....................
;;
;;	NEGATION and ONE'S COMPLEMENT
;;
;;  ....................

(define_insn "negsi2"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(neg:SI (match_operand:SI 1 "register_operand" "d")))]
  ""
  "*
{
  operands[2] = const0_rtx;
  return \"subu\\t%0,%z2,%1\";
}"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

(define_insn "one_cmplsi2"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(not:SI (match_operand:SI 1 "register_operand" "d")))]
  ""
  "*
{
  operands[2] = const0_rtx;
  return \"nor\\t%0,%z2,%1\";
}"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

;;
;;  ....................
;;
;;	LOGICAL
;;
;;  ....................
;;

(define_expand "andsi3"
  [(set (match_operand:SI 0 "register_operand" "=d,d,d")
	(and:SI (match_operand:SI 1 "uns_arith_operand" "%d,d,d")
		(match_operand:SI 2 "nonmemory_operand" "d,K,N")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d,d")
	(and:SI (match_operand:SI 1 "uns_arith_operand" "%d,d,d")
		(match_operand:SI 2 "nonmemory_operand" "d,K,N")))]
  ""
  "*
{
  if (which_alternative == 0)
    return \"and\\t%0,%1,%2\";
  else if (which_alternative == 1)
    return \"andi\\t%0,%1,%x2\";
  else if (which_alternative == 2)
    {
      if ((INTVAL (operands[2]) & 0xffff) == 0xffff)
	{
	  operands[2] = GEN_INT (INTVAL (operands[2]) >> 16);
	  return \"andoui\\t%0,%1,%x2\";
	}
      else
	{
	  operands[2] = GEN_INT (INTVAL (operands[2]) & 0xffff);
	  return \"andoi\\t%0,%1,%x2\";
	}
    }
  else
    gcc_unreachable ();
}"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

(define_expand "iorsi3"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
	(ior:SI (match_operand:SI 1 "uns_arith_operand" "%d,d")
		(match_operand:SI 2 "uns_arith_operand" "d,K")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d")
	(ior:SI (match_operand:SI 1 "uns_arith_operand" "%d,d")
		(match_operand:SI 2 "uns_arith_operand" "d,K")))]
  ""
  "@
   or\\t%0,%1,%2
   ori\\t%0,%1,%x2"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

(define_expand "xorsi3"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
	(xor:SI (match_operand:SI 1 "uns_arith_operand" "%d,d")
		(match_operand:SI 2 "uns_arith_operand" "d,K")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d")
	(xor:SI (match_operand:SI 1 "uns_arith_operand" "%d,d")
		(match_operand:SI 2 "uns_arith_operand" "d,K")))]
  ""
  "@
   xor\\t%0,%1,%2
   xori\\t%0,%1,%x2"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

(define_insn "*norsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(and:SI (not:SI (match_operand:SI 1 "register_operand" "d"))
		(not:SI (match_operand:SI 2 "register_operand" "d"))))]
  ""
  "nor\\t%0,%z1,%z2"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

;;
;;  ....................
;;
;;	ZERO EXTENSION
;;
;;  ....................

;; Extension insns.
;; Those for integer source operand are ordered widest source type first.

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

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d,d")
	(zero_extend:SI (match_operand:HI 1 "nonimmediate_operand" "d,R,m")))]
  ""
  "*
{
  if (which_alternative == 0)
    return \"andi\\t%0,%1,0xffff\";
  else
    return iq2000_move_1word (operands, insn, TRUE);
}"
  [(set_attr "type"	"arith,load,load")
   (set_attr "mode"	"SI")
   (set_attr "length"	"4,4,8")])

(define_expand "zero_extendqihi2"
  [(set (match_operand:HI 0 "register_operand" "")
	(zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "")))]
  ""
  "")

(define_insn ""
  [(set (match_operand:HI 0 "register_operand" "=d,d,d")
	(zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "d,R,m")))]
  ""
  "*
{
  if (which_alternative == 0)
    return \"andi\\t%0,%1,0x00ff\";
  else
    return iq2000_move_1word (operands, insn, TRUE);
}"
  [(set_attr "type"	"arith,load,load")
   (set_attr "mode"	"HI")
   (set_attr "length"	"4,4,8")])

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

(define_insn ""
  [(set (match_operand:SI 0 "register_operand" "=d,d,d")
	(zero_extend:SI (match_operand:QI 1 "nonimmediate_operand" "d,R,m")))]
  ""
  "*
{
  if (which_alternative == 0)
    return \"andi\\t%0,%1,0x00ff\";
  else
    return iq2000_move_1word (operands, insn, TRUE);
}"
  [(set_attr "type"	"arith,load,load")
   (set_attr "mode"	"SI")
   (set_attr "length"	"4,4,8")])

;;
;;  ....................
;;
;;	SIGN EXTENSION
;;
;;  ....................

;; Extension insns.
;; Those for integer source operand are ordered widest source type first.

;; These patterns originally accepted general_operands, however, slightly
;; better code is generated by only accepting register_operands, and then
;; letting combine generate the lh and lb insns.

(define_expand "extendhisi2"
  [(set (match_operand:SI 0 "register_operand" "")
	(sign_extend:SI (match_operand:HI 1 "nonimmediate_operand" "")))]
  ""
  "
{
  if (optimize && GET_CODE (operands[1]) == MEM)
    operands[1] = force_not_mem (operands[1]);

  if (GET_CODE (operands[1]) != MEM)
    {
      rtx op1   = gen_lowpart (SImode, operands[1]);
      rtx temp  = gen_reg_rtx (SImode);
      rtx shift = GEN_INT (16);

      emit_insn (gen_ashlsi3 (temp, op1, shift));
      emit_insn (gen_ashrsi3 (operands[0], temp, shift));
      DONE;
    }
}")

(define_insn "extendhisi2_internal"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
	(sign_extend:SI (match_operand:HI 1 "memory_operand" "R,m")))]
  ""
  "* return iq2000_move_1word (operands, insn, FALSE);"
  [(set_attr "type"	"load")
   (set_attr "mode"	"SI")
   (set_attr "length"	"4,8")])

(define_expand "extendqihi2"
  [(set (match_operand:HI 0 "register_operand" "")
	(sign_extend:HI (match_operand:QI 1 "nonimmediate_operand" "")))]
  ""
  "
{
  if (optimize && GET_CODE (operands[1]) == MEM)
    operands[1] = force_not_mem (operands[1]);

  if (GET_CODE (operands[1]) != MEM)
    {
      rtx op0   = gen_lowpart (SImode, operands[0]);
      rtx op1   = gen_lowpart (SImode, operands[1]);
      rtx temp  = gen_reg_rtx (SImode);
      rtx shift = GEN_INT (24);

      emit_insn (gen_ashlsi3 (temp, op1, shift));
      emit_insn (gen_ashrsi3 (op0, temp, shift));
      DONE;
    }
}")

(define_insn "extendqihi2_internal"
  [(set (match_operand:HI 0 "register_operand" "=d,d")
	(sign_extend:HI (match_operand:QI 1 "memory_operand" "R,m")))]
  ""
  "* return iq2000_move_1word (operands, insn, FALSE);"
  [(set_attr "type"	"load")
   (set_attr "mode"	"SI")
   (set_attr "length"	"4,8")])


(define_expand "extendqisi2"
  [(set (match_operand:SI 0 "register_operand" "")
	(sign_extend:SI (match_operand:QI 1 "nonimmediate_operand" "")))]
  ""
  "
{
  if (optimize && GET_CODE (operands[1]) == MEM)
    operands[1] = force_not_mem (operands[1]);

  if (GET_CODE (operands[1]) != MEM)
    {
      rtx op1   = gen_lowpart (SImode, operands[1]);
      rtx temp  = gen_reg_rtx (SImode);
      rtx shift = GEN_INT (24);

      emit_insn (gen_ashlsi3 (temp, op1, shift));
      emit_insn (gen_ashrsi3 (operands[0], temp, shift));
      DONE;
    }
}")

(define_insn "extendqisi2_insn"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
	(sign_extend:SI (match_operand:QI 1 "memory_operand" "R,m")))]
  ""
  "* return iq2000_move_1word (operands, insn, FALSE);"
  [(set_attr "type"	"load")
   (set_attr "mode"	"SI")
   (set_attr "length"	"4,8")])

;;
;;  ........................
;;
;;      BIT FIELD EXTRACTION
;;
;;  ........................

(define_insn "extzv"
  [(set (match_operand:SI 0 "register_operand" "=r")
        (zero_extract:SI (match_operand:SI 1 "register_operand" "r")
                         (match_operand:SI 2 "const_int_operand" "O")
                         (match_operand:SI 3 "const_int_operand" "O")))]
  ""
  "*
{
  int value[4];
  value[2] = INTVAL (operands[2]);
  value[3] = INTVAL (operands[3]);
  operands[2] = GEN_INT ((value[3]));
  operands[3] = GEN_INT ((32 - value[2]));
  return \"ram\\t%0,%1,%2,%3,0x0\";  
}"
  [(set_attr "type" "arith")])

;;
;;  ....................
;;
;;	DATA MOVEMENT
;;
;;  ....................

/* Take care of constants that don't fit in single instruction */
(define_split
  [(set (match_operand:SI 0 "register_operand" "")
        (match_operand:SI 1 "general_operand" ""))]
  "(reload_in_progress || reload_completed)
   && large_int (operands[1], SImode)"

  [(set (match_dup 0 )
        (high:SI (match_dup 1)))
   (set (match_dup 0 )
        (lo_sum:SI (match_dup 0)
                   (match_dup 1)))]
)

;; ??? iq2000_move_1word has support for HIGH, so this pattern may be
;; unnecessary.

(define_insn "high"
  [(set (match_operand:SI 0 "register_operand" "=r")
	(high:SI (match_operand:SI 1 "immediate_operand" "")))]
  ""
  "lui\\t%0,%%hi(%1) # high"
  [(set_attr "type"	"move")])

(define_insn "low"
  [(set (match_operand:SI 0 "register_operand" "=r")
	(lo_sum:SI (match_operand:SI 1 "register_operand" "r")
		   (match_operand:SI 2 "immediate_operand" "")))]
  ""
  "addiu\\t%0,%1,%%lo(%2) # low"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

;; 32-bit Integer moves

(define_split
  [(set (match_operand:SI 0 "register_operand" "")
	(match_operand:SI 1 "large_int" ""))]
  "reload_in_progress | reload_completed"
  [(set (match_dup 0)
	(match_dup 2))
   (set (match_dup 0)
     	(ior:SI (match_dup 0)
		(match_dup 3)))]
  "
{
  operands[2] = GEN_INT (trunc_int_for_mode (INTVAL (operands[1])
					     & BITMASK_UPPER16,
					     SImode));
  operands[3] = GEN_INT (INTVAL (operands[1]) & BITMASK_LOWER16);
}")

;; Unlike most other insns, the move insns can't be split with
;; different predicates, because register spilling and other parts of
;; the compiler, have memoized the insn number already.

(define_expand "movsi"
  [(set (match_operand:SI 0 "nonimmediate_operand" "")
	(match_operand:SI 1 "general_operand" ""))]
  ""
  "
{
  if (iq2000_check_split (operands[1], SImode))
    {
      machine_mode mode = GET_MODE (operands[0]);
      rtx tem = ((reload_in_progress | reload_completed)
		 ? operands[0] : gen_reg_rtx (mode));

      emit_insn (gen_rtx_SET (tem, gen_rtx_HIGH (mode, operands[1])));

      operands[1] = gen_rtx_LO_SUM (mode, tem, operands[1]);
    }

  if ((reload_in_progress | reload_completed) == 0
      && !register_operand (operands[0], SImode)
      && !register_operand (operands[1], SImode)
      && (GET_CODE (operands[1]) != CONST_INT
	  || INTVAL (operands[1]) != 0))
    {
      rtx temp = force_reg (SImode, operands[1]);
      emit_move_insn (operands[0], temp);
      DONE;
    }

  /* Take care of constants that don't fit in single instruction */
  if ((reload_in_progress || reload_completed)
      && CONSTANT_P (operands[1])
      && GET_CODE (operands[1]) != HIGH
      && GET_CODE (operands[1]) != LO_SUM
      && ! SMALL_INT_UNSIGNED (operands[1]))
    {
      rtx tem = ((reload_in_progress | reload_completed)
		 ? operands[0] : gen_reg_rtx (SImode));

      emit_insn (gen_rtx_SET (tem, gen_rtx_HIGH (SImode, operands[1])));
      operands[1] = gen_rtx_LO_SUM (SImode, tem, operands[1]);
    }
}")

;; The difference between these two is whether or not ints are allowed
;; in FP registers (off by default, use -mdebugh to enable).

(define_insn "movsi_internal2"
  [(set (match_operand:SI 0 "nonimmediate_operand" "=d,d,d,d,d,R,m")
	(match_operand:SI 1 "move_operand" "d,IKL,Mnis,R,m,dJ,dJ"))]
  "(register_operand (operands[0], SImode)
       || register_operand (operands[1], SImode)
       || (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) == 0))"
  "* return iq2000_move_1word (operands, insn, FALSE);"
  [(set_attr "type"	"move,arith,arith,load,load,store,store")
   (set_attr "mode"	"SI")
   (set_attr "length"	"4,4,8,8,8,4,8")])

;; 16-bit Integer moves

;; Unlike most other insns, the move insns can't be split with
;; different predicates, because register spilling and other parts of
;; the compiler, have memoized the insn number already.
;; Unsigned loads are used because BYTE_LOADS_ZERO_EXTEND is defined

(define_expand "movhi"
  [(set (match_operand:HI 0 "nonimmediate_operand" "")
	(match_operand:HI 1 "general_operand" ""))]
  ""
  "
{
  if ((reload_in_progress | reload_completed) == 0
      && !register_operand (operands[0], HImode)
      && !register_operand (operands[1], HImode)
      && ((GET_CODE (operands[1]) != CONST_INT
	  || INTVAL (operands[1]) != 0)))
    {
      rtx temp = force_reg (HImode, operands[1]);
      emit_move_insn (operands[0], temp);
      DONE;
    }
}")

;; The difference between these two is whether or not ints are allowed
;; in FP registers (off by default, use -mdebugh to enable).

(define_insn "movhi_internal2"
  [(set (match_operand:HI 0 "nonimmediate_operand" "=d,d,d,d,R,m")
	(match_operand:HI 1 "general_operand"       "d,IK,R,m,dJ,dJ"))]
  "(register_operand (operands[0], HImode)
       || register_operand (operands[1], HImode)
       || (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) == 0))"
  "* return iq2000_move_1word (operands, insn, TRUE);"
  [(set_attr "type"	"move,arith,load,load,store,store")
   (set_attr "mode"	"HI")
   (set_attr "length"	"4,4,4,8,4,8")])

;; 8-bit Integer moves

;; Unlike most other insns, the move insns can't be split with
;; different predicates, because register spilling and other parts of
;; the compiler, have memoized the insn number already.
;; Unsigned loads are used because BYTE_LOADS_ZERO_EXTEND is defined

(define_expand "movqi"
  [(set (match_operand:QI 0 "nonimmediate_operand" "")
	(match_operand:QI 1 "general_operand" ""))]
  ""
  "
{
  if ((reload_in_progress | reload_completed) == 0
      && !register_operand (operands[0], QImode)
      && !register_operand (operands[1], QImode)
      && (GET_CODE (operands[1]) != CONST_INT
          || INTVAL (operands[1]) != 0))
    {
      rtx temp = force_reg (QImode, operands[1]);
      emit_move_insn (operands[0], temp);
      DONE;
    }
}")

;; The difference between these two is whether or not ints are allowed
;; in FP registers (off by default, use -mdebugh to enable).

(define_insn "movqi_internal2"
  [(set (match_operand:QI 0 "nonimmediate_operand" "=d,d,d,d,R,m")
	(match_operand:QI 1 "general_operand"       "d,IK,R,m,dJ,dJ"))]
  "(register_operand (operands[0], QImode)
       || register_operand (operands[1], QImode)
       || (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) == 0))"
  "* return iq2000_move_1word (operands, insn, TRUE);"
  [(set_attr "type"	"move,arith,load,load,store,store")
   (set_attr "mode"	"QI")
   (set_attr "length"	"4,4,4,8,4,8")])

;; 32-bit floating point moves

(define_expand "movsf"
  [(set (match_operand:SF 0 "general_operand" "")
        (match_operand:SF 1 "general_operand" ""))]
  ""
  "
{
  if (!reload_in_progress
      && !reload_completed
      && GET_CODE (operands[0]) == MEM
      && (GET_CODE (operands[1]) == MEM
         || GET_CODE (operands[1]) == CONST_DOUBLE))
    operands[1] = copy_to_mode_reg (SFmode, operands[1]);

  /* Take care of reg <- SF constant */
  if ( const_double_operand (operands[1], GET_MODE (operands[1]) ) )
    {
      emit_insn (gen_movsf_high (operands[0], operands[1]));
      emit_insn (gen_movsf_lo_sum (operands[0], operands[0], operands[1]));
      DONE;
    }
}")

(define_insn "movsf_lo_sum"
  [(set (match_operand:SF 0 "register_operand" "=r")
        (lo_sum:SF (match_operand:SF 1 "register_operand" "r")
                   (match_operand:SF 2 "const_double_operand" "")))]
  ""
  "*
{
  long i;

  REAL_VALUE_TO_TARGET_SINGLE (*CONST_DOUBLE_REAL_VALUE (operands[2]), i);
  operands[2] = GEN_INT (i);
  return \"addiu\\t%0,%1,%%lo(%2) # low\";
}"
  [(set_attr "length" "4")
   (set_attr "type" "arith")])

(define_insn "movsf_high"
  [(set (match_operand:SF 0 "register_operand" "=r")
        (high:SF (match_operand:SF 1 "const_double_operand" "")))]
  ""
  "*
{
  long i;

  REAL_VALUE_TO_TARGET_SINGLE (*CONST_DOUBLE_REAL_VALUE (operands[1]), i);
  operands[1] = GEN_INT (i);
  return \"lui\\t%0,%%hi(%1) # high\";
}"
  [(set_attr "length" "4")
   (set_attr "type" "arith")])

(define_insn "*movsf_internal"
  [(set (match_operand:SF 0 "nonimmediate_operand" "=r,r,m")
        (match_operand:SF 1 "nonimmediate_operand" "r,m,r"))]
  "!memory_operand (operands[0], SFmode) || !memory_operand (operands[1], SFmode)"
  "*
{
  iq2000_fill_delay_slot (\"\", DELAY_LOAD, operands, insn);  
  if (which_alternative == 0)
    return \"or\\t%0,%1,%1\";
  else if (which_alternative == 1)
    return \"lw\\t%0,%1\";
  else if (which_alternative == 2)
    return \"sw\\t%1,%0\";
  else
    gcc_unreachable ();
}"
  [(set_attr "length" "4,4,4")
   (set_attr "type" "arith,load,store")]
)

;;
;;  ....................
;;
;;	SHIFTS
;;
;;  ....................

(define_expand "ashlsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (ashift:SI (match_operand:SI 1 "register_operand" "d")
                   (match_operand:SI 2 "arith_operand" "dI")))]
  ""
  "")

(define_insn "ashlsi3_internal1"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(ashift:SI (match_operand:SI 1 "register_operand" "d")
		   (match_operand:SI 2 "arith_operand" "dI")))]
  ""
  "*
{
  if (GET_CODE (operands[2]) == CONST_INT)
    {
      operands[2] = GEN_INT (INTVAL (operands[2]) & 0x1f);
      return \"sll\\t%0,%1,%2\";
    }
  else
    return \"sllv\\t%0,%1,%2\";
}"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

(define_expand "ashrsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(ashiftrt:SI (match_operand:SI 1 "register_operand" "d")
		     (match_operand:SI 2 "arith_operand" "dI")))]
  ""
  "")

(define_insn "ashrsi3_internal1"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(ashiftrt:SI (match_operand:SI 1 "register_operand" "d")
		     (match_operand:SI 2 "arith_operand" "dI")))]
  ""
  "*
{
  if (GET_CODE (operands[2]) == CONST_INT)
    {
      operands[2] = GEN_INT (INTVAL (operands[2]) & 0x1f);
      return \"sra\\t%0,%1,%2\";
    }
  else
    return \"srav\\t%0,%1,%2\";
}"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

(define_expand "lshrsi3"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(lshiftrt:SI (match_operand:SI 1 "register_operand" "d")
		     (match_operand:SI 2 "arith_operand" "dI")))]
  ""
  "")

(define_insn "lshrsi3_internal1"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(lshiftrt:SI (match_operand:SI 1 "register_operand" "d")
		     (match_operand:SI 2 "arith_operand" "dI")))]
  ""
  "*
{
  if (GET_CODE (operands[2]) == CONST_INT)
    {
      operands[2] = GEN_INT (INTVAL (operands[2]) & 0x1f);
      return \"srl\\t%0,%1,%2\";
    }
  else
    return \"srlv\\t%0,%1,%2\";
}"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

;; Rotate Right
(define_insn "rotrsi3"
  [(set (match_operand:SI 0 "register_operand" "=r")
        (rotatert:SI (match_operand:SI 1 "register_operand" "r")
                     (match_operand:SI 2 "uns_arith_operand" "O")))]
  ""
  "ram %0,%1,%2,0x0,0x0"
  [(set_attr "type" "arith")])


;;
;;  ....................
;;
;;	CONDITIONAL BRANCHES
;;
;;  ....................

(define_expand "cbranchsi4"
  [(set (pc)
        (if_then_else
         (match_operator 0 "ordered_comparison_operator"
			 [(match_operand:SI 1 "register_operand")
			  (match_operand:SI 2 "reg_or_const_operand")])
	 (label_ref (match_operand 3 ""))
	 (pc)))]
  ""
  "
{
  gen_conditional_branch (operands, SImode);
  DONE;
}")


;; Conditional branches on comparisons with zero.

(define_insn "branch_zero"
  [(set (pc)
	(if_then_else
         (match_operator 0 "cmp_op"
			 [(match_operand:SI 2 "register_operand" "d")
			  (const_int 0)])
        (label_ref (match_operand 1 "" ""))
        (pc)))]
  ""
  "*
{
  return iq2000_output_conditional_branch (insn,
					 operands,
					 /*two_operands_p=*/0,
					 /*float_p=*/0,
					 /*inverted_p=*/0,
					 get_attr_length (insn));
}"
  [(set_attr "type"	"branch")
   (set_attr "mode"	"none")])

(define_insn "branch_zero_inverted"
  [(set (pc)
	(if_then_else
         (match_operator 0 "cmp_op"
			 [(match_operand:SI 2 "register_operand" "d")
			  (const_int 0)])
        (pc)
        (label_ref (match_operand 1 "" ""))))]
  ""
  "*
{
  return iq2000_output_conditional_branch (insn,
					 operands,
					 /*two_operands_p=*/0,
					 /*float_p=*/0,
					 /*inverted_p=*/1,
					 get_attr_length (insn));
}"
  [(set_attr "type"	"branch")
   (set_attr "mode"	"none")])

;; Conditional branch on equality comparison.

(define_insn "branch_equality"
  [(set (pc)
	(if_then_else
         (match_operator 0 "equality_op"
			 [(match_operand:SI 2 "register_operand" "d")
			  (match_operand:SI 3 "register_operand" "d")])
         (label_ref (match_operand 1 "" ""))
         (pc)))]
  ""
  "*
{
  return iq2000_output_conditional_branch (insn,
					 operands,
					 /*two_operands_p=*/1,
					 /*float_p=*/0,
					 /*inverted_p=*/0,
					 get_attr_length (insn));
}"
  [(set_attr "type"	"branch")
   (set_attr "mode"	"none")])

(define_insn "branch_equality_inverted"
  [(set (pc)
	(if_then_else
         (match_operator 0 "equality_op"
			 [(match_operand:SI 2 "register_operand" "d")
			  (match_operand:SI 3 "register_operand" "d")])
         (pc)
         (label_ref (match_operand 1 "" ""))))]
  ""
  "*
{
  return iq2000_output_conditional_branch (insn,
					 operands,
					 /*two_operands_p=*/1,
					 /*float_p=*/0,
					 /*inverted_p=*/1,
					 get_attr_length (insn));
}"
  [(set_attr "type"	"branch")
   (set_attr "mode"	"none")])


;; Recognize bbi and bbin instructions.  These use two unusual template
;; patterns, %Ax and %Px.  %Ax outputs an 'i' if operand `x' is a LABEL_REF
;; otherwise it outputs an 'in'.  %Px does nothing if `x' is PC 
;; and outputs the operand if `x' is a LABEL_REF.

(define_insn ""
  [(set (pc)
	(if_then_else
	 (ne (sign_extract:SI (match_operand:SI 0 "register_operand" "r")
			      (const_int 1)
			      (match_operand:SI 1 "arith_operand" "I"))
	     (const_int 0))
	 (match_operand 2 "pc_or_label_operand" "")
	 (match_operand 3 "pc_or_label_operand" "")))]
  ""
  "bb%A2\\t%0(31-%1),%P2%P3"
  [(set_attr "length" "4")
   (set_attr "type" "branch")])

(define_insn ""
  [(set (pc)
	(if_then_else
	 (eq (sign_extract:SI (match_operand:SI 0 "register_operand" "r")
			      (const_int 1)
			      (match_operand:SI 1 "arith_operand" "I"))
	     (const_int 0))
	 (match_operand 2 "pc_or_label_operand" "")
	 (match_operand 3 "pc_or_label_operand" "")))]
  ""
  "bb%A3\\t%0(31-%1),%P2%P3"
  [(set_attr "length" "4")
   (set_attr "type" "branch")])

(define_insn ""
  [(set (pc)
	(if_then_else
	 (ne (zero_extract:SI (match_operand:SI 0 "register_operand" "r")
			      (const_int 1)
			      (match_operand:SI 1 "arith_operand" "I"))
	     (const_int 0))
	 (match_operand 2 "pc_or_label_operand" "")
	 (match_operand 3 "pc_or_label_operand" "")))]
  "0"
  "bb%A2\\t%0(31-%1),%P2%P3"
  [(set_attr "length" "4")
   (set_attr "type" "branch")])

(define_insn ""
  [(set (pc)
	(if_then_else
	 (eq (zero_extract:SI (match_operand:SI 0 "register_operand" "r")
			      (const_int 1)
			      (match_operand:SI 1 "arith_operand" "I"))
	     (const_int 0))
	 (match_operand 2 "pc_or_label_operand" "")
	 (match_operand 3 "pc_or_label_operand" "")))]
  "0"
  "bb%A3\\t%0(31-%1),%P2%P3"
  [(set_attr "length" "4")
   (set_attr "type" "branch")])

(define_insn ""
  [(set (pc)
	(if_then_else
	 (eq (and:SI (match_operand:SI 0 "register_operand" "r")
		     (match_operand:SI 1 "power_of_2_operand" "I"))
	      (const_int 0))
	 (match_operand 2 "pc_or_label_operand" "")
	 (match_operand 3 "pc_or_label_operand" "")))]
  ""
  "bb%A3\\t%0(%p1),%P2%P3"
  [(set_attr "length" "4")
   (set_attr "type" "branch")])

(define_insn ""
  [(set (pc)
	(if_then_else
	 (ne (and:SI (match_operand:SI 0 "register_operand" "r")
		     (match_operand:SI 1 "power_of_2_operand" "I"))
	     (const_int 0))
	 (match_operand 2 "pc_or_label_operand" "")
	 (match_operand 3 "pc_or_label_operand" "")))]
  ""
  "bb%A2\\t%0(%p1),%P2%P3"
  [(set_attr "length" "4")
   (set_attr "type" "branch")])

;;
;;  ....................
;;
;;	SETTING A REGISTER FROM A COMPARISON
;;
;;  ....................

(define_expand "cstoresi4"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(match_operator:SI 1 "ordered_comparison_operator"
	 [(match_operand:SI 2 "register_operand")
	  (match_operand:SI 3 "reg_or_const_operand")]))]
  ""
  "
{
  gen_int_relational (GET_CODE (operands[1]), operands[0],
		      operands[2], operands[3], (int *)0);
  DONE;
}")

(define_insn "seq_si_zero"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(eq:SI (match_operand:SI 1 "register_operand" "d")
	       (const_int 0)))]
  ""
  "sltiu\\t%0,%1,1"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

(define_insn "sne_si_zero"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(ne:SI (match_operand:SI 1 "register_operand" "d")
	       (const_int 0)))]
  ""
  "sltu\\t%0,%.,%1"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

(define_insn "sgt_si"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
	(gt:SI (match_operand:SI 1 "register_operand" "d,d")
	       (match_operand:SI 2 "reg_or_0_operand" "d,J")))]
  ""
  "@
   slt\\t%0,%z2,%1
   slt\\t%0,%z2,%1"
  [(set_attr "type"	"arith,arith")
   (set_attr "mode"	"SI,SI")])

(define_insn "slt_si"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
	(lt:SI (match_operand:SI 1 "register_operand" "d,d")
	       (match_operand:SI 2 "arith_operand" "d,I")))]
  ""
  "@
   slt\\t%0,%1,%2
   slti\\t%0,%1,%2"
  [(set_attr "type"	"arith,arith")
   (set_attr "mode"	"SI,SI")])

(define_insn "sle_si_const"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(le:SI (match_operand:SI 1 "register_operand" "d")
	       (match_operand:SI 2 "small_int" "I")))]
  "INTVAL (operands[2]) < 32767"
  "*
{
  operands[2] = GEN_INT (INTVAL (operands[2])+1);
  return \"slti\\t%0,%1,%2\";
}"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

(define_insn "sgtu_si"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(gtu:SI (match_operand:SI 1 "register_operand" "d")
		(match_operand:SI 2 "reg_or_0_operand" "dJ")))]
  ""
  "sltu\\t%0,%z2,%1"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])

(define_insn "sltu_si"
  [(set (match_operand:SI 0 "register_operand" "=d,d")
	(ltu:SI (match_operand:SI 1 "register_operand" "d,d")
		(match_operand:SI 2 "arith_operand" "d,I")))]
  ""
  "@
   sltu\\t%0,%1,%2
   sltiu\\t%0,%1,%2"
  [(set_attr "type"	"arith,arith")
   (set_attr "mode"	"SI,SI")])

(define_insn "sleu_si_const"
  [(set (match_operand:SI 0 "register_operand" "=d")
	(leu:SI (match_operand:SI 1 "register_operand" "d")
		(match_operand:SI 2 "small_int" "I")))]
  "INTVAL (operands[2]) < 32767"
  "*
{
  operands[2] = GEN_INT (INTVAL (operands[2]) + 1);
  return \"sltiu\\t%0,%1,%2\";
}"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")])


;;
;;  ....................
;;
;;	UNCONDITIONAL BRANCHES
;;
;;  ....................

;; Unconditional branches.

(define_insn "jump"
  [(set (pc)
	(label_ref (match_operand 0 "" "")))]
  ""
  "*
{
  if (GET_CODE (operands[0]) == REG)
    return \"j\\t%0\";
  return \"j\\t%l0\";
  /* return \"b\\t%l0\";*/
}"
  [(set_attr "type"	"jump")
   (set_attr "mode"	"none")])

(define_expand "indirect_jump"
  [(set (pc) (match_operand 0 "register_operand" "d"))]
  ""
  "
{
  rtx dest;

  if (operands[0])		/* eliminate unused code warnings */
    {
      dest = operands[0];
      if (GET_CODE (dest) != REG || GET_MODE (dest) != Pmode)
	operands[0] = copy_to_mode_reg (Pmode, dest);

      if (!(Pmode == DImode))
	emit_jump_insn (gen_indirect_jump_internal1 (operands[0]));
      else
	internal_error (\"unimplemented functionality\");

      DONE;
    }
}")

(define_insn "indirect_jump_internal1"
  [(set (pc) (match_operand:SI 0 "register_operand" "d"))]
  "!(Pmode == DImode)"
  "j\\t%0"
  [(set_attr "type"	"jump")
   (set_attr "mode"	"none")])

(define_expand "tablejump"
  [(set (pc)
	(match_operand 0 "register_operand" "d"))
   (use (label_ref (match_operand 1 "" "")))]
  ""
  "
{
  if (operands[0])		/* eliminate unused code warnings */
    {
      gcc_assert (GET_MODE (operands[0]) == Pmode);

      if (!(Pmode == DImode))
	emit_jump_insn (gen_tablejump_internal1 (operands[0], operands[1]));
      else
	internal_error (\"unimplemented functionality\");

      DONE;
    }
}")

(define_insn "tablejump_internal1"
  [(set (pc)
	(match_operand:SI 0 "register_operand" "d"))
   (use (label_ref (match_operand 1 "" "")))]
  "!(Pmode == DImode)"
  "j\\t%0"
  [(set_attr "type"	"jump")
   (set_attr "mode"	"none")])

(define_expand "tablejump_internal3"
  [(parallel [(set (pc)
		   (plus:SI (match_operand:SI 0 "register_operand" "d")
			    (label_ref:SI (match_operand 1 "" ""))))
	      (use (label_ref:SI (match_dup 1)))])]
  ""
  "")

;;; Make sure that this only matches the insn before ADDR_DIFF_VEC.  Otherwise
;;; it is not valid.  ??? With the USE, the condition tests may not be required
;;; any longer.

;;; ??? The length depends on the ABI.  It is two for o32, and one for n32.
;;; We just use the conservative number here.

(define_insn ""
  [(set (pc)
	(plus:SI (match_operand:SI 0 "register_operand" "d")
		 (label_ref:SI (match_operand 1 "" ""))))
   (use (label_ref:SI (match_dup 1)))]
  "!(Pmode == DImode) && NEXT_INSN (as_a <rtx_insn *> (operands[1])) != 0
   && GET_CODE (PATTERN (NEXT_INSN (as_a <rtx_insn *> (operands[1])))) == ADDR_DIFF_VEC"
  "*
{
  return \"j\\t%0\";
}"
  [(set_attr "type"	"jump")
   (set_attr "mode"	"none")
   (set_attr "length"	"8")])

;;
;;  ....................
;;
;;	Function prologue/epilogue
;;
;;  ....................
;;

(define_expand "prologue"
  [(const_int 1)]
  ""
  "
{
  if (iq2000_isa >= 0)		/* avoid unused code warnings */
    {
      iq2000_expand_prologue ();
      DONE;
    }
}")

;; Block any insns from being moved before this point, since the
;; profiling call to mcount can use various registers that aren't
;; saved or used to pass arguments.

(define_insn "blockage"
  [(unspec_volatile [(const_int 0)] 0)]
  ""
  ""
  [(set_attr "type"	"unknown")
   (set_attr "mode"	"none")
   (set_attr "length"	"0")])

(define_expand "epilogue"
  [(const_int 2)]
  ""
  "
{
  if (iq2000_isa >= 0)            /* avoid unused code warnings */
    {
      iq2000_expand_epilogue ();
      DONE;
    }
}")

;; Trivial return.  Make it look like a normal return insn as that
;; allows jump optimizations to work better .
(define_insn "return"
  [(return)]
  "iq2000_can_use_return_insn ()"
  "j\\t%%31"
  [(set_attr "type"	"jump")
   (set_attr "mode"	"none")])

;; Normal return.

(define_insn "return_internal"
  [(use (match_operand 0 "pmode_register_operand" ""))
   (return)]
  ""
  "*
{
  return \"j\\t%0\";
}"
  [(set_attr "type"	"jump")
   (set_attr "mode"	"none")])

(define_insn "eh_return_internal"
  [(const_int 4)
   (return)
   (use (reg:SI 26))
   (use (reg:SI 31))]
  ""
  "j\\t%%26"
  [(set_attr "type"	"jump")
   (set_attr "mode"	"none")])

(define_expand "eh_return"
  [(use (match_operand:SI 0 "register_operand" "r"))]
  ""
  "
{
  iq2000_expand_eh_return (operands[0]);
  DONE;
}")


;;
;;  ....................
;;
;;	FUNCTION CALLS
;;
;;  ....................

;; calls.c now passes a third argument, make saber happy

(define_expand "call"
  [(parallel [(call (match_operand 0 "memory_operand" "m")
		    (match_operand 1 "" "i"))
	      (clobber (reg:SI 31))
	      (use (match_operand 2 "" ""))		;; next_arg_reg
	      (use (match_operand 3 "" ""))])]		;; struct_value_size_rtx
  ""
  "
{
  rtx addr;

  if (operands[0])		/* eliminate unused code warnings */
    {
      addr = XEXP (operands[0], 0);
      if ((GET_CODE (addr) != REG && (!CONSTANT_ADDRESS_P (addr)))
	  || ! call_insn_operand (addr, VOIDmode))
	XEXP (operands[0], 0) = copy_to_mode_reg (Pmode, addr);

      /* In order to pass small structures by value in registers
	 compatibly with the IQ2000 compiler, we need to shift the value
	 into the high part of the register.  Function_arg has encoded
	 a PARALLEL rtx, holding a vector of adjustments to be made
	 as the next_arg_reg variable, so we split up the insns,
	 and emit them separately.  */

      if (operands[2] != (rtx)0 && GET_CODE (operands[2]) == PARALLEL)
	{
	  rtvec adjust = XVEC (operands[2], 0);
	  int num = GET_NUM_ELEM (adjust);
	  int i;

	  for (i = 0; i < num; i++)
	    emit_insn (RTVEC_ELT (adjust, i));
	}

      emit_call_insn (gen_call_internal0 (operands[0], operands[1],
					  gen_rtx_REG (SImode,
						       GP_REG_FIRST + 31)));
      DONE;
    }
}")

(define_expand "call_internal0"
  [(parallel [(call (match_operand 0 "" "")
		    (match_operand 1 "" ""))
	      (clobber (match_operand:SI 2 "" ""))])]
  ""
  "")

(define_insn "call_internal1"
  [(call (mem (match_operand 0 "call_insn_operand" "ri"))
	 (match_operand 1 "" "i"))
   (clobber (match_operand:SI 2 "register_operand" "=d"))]
  ""
  "*
{
  register rtx target = operands[0];

  if (GET_CODE (target) == CONST_INT)
    return \"li\\t%@,%0\\n\\tjalr\\t%2,%@\";
  else if (CONSTANT_ADDRESS_P (target))
    return \"jal\\t%0\";
  else
    return \"jalr\\t%2,%0\";
}"
  [(set_attr "type"	"call")
   (set_attr "mode"	"none")])

;; calls.c now passes a fourth argument, make saber happy

(define_expand "call_value"
  [(parallel [(set (match_operand 0 "register_operand" "=d")
		   (call (match_operand 1 "memory_operand" "m")
			 (match_operand 2 "" "i")))
	      (clobber (reg:SI 31))
	      (use (match_operand 3 "" ""))])]		;; next_arg_reg
  ""
  "
{
  rtx addr;

  if (operands[0])		/* eliminate unused code warning */
    {
      addr = XEXP (operands[1], 0);
      if ((GET_CODE (addr) != REG && (!CONSTANT_ADDRESS_P (addr)))
	  || ! call_insn_operand (addr, VOIDmode))
	XEXP (operands[1], 0) = copy_to_mode_reg (Pmode, addr);

      /* In order to pass small structures by value in registers
	 compatibly with the IQ2000 compiler, we need to shift the value
	 into the high part of the register.  Function_arg has encoded
	 a PARALLEL rtx, holding a vector of adjustments to be made
	 as the next_arg_reg variable, so we split up the insns,
	 and emit them separately.  */

      if (operands[3] != (rtx)0 && GET_CODE (operands[3]) == PARALLEL)
	{
	  rtvec adjust = XVEC (operands[3], 0);
	  int num = GET_NUM_ELEM (adjust);
	  int i;

	  for (i = 0; i < num; i++)
	    emit_insn (RTVEC_ELT (adjust, i));
	}

      if (GET_CODE (operands[0]) == PARALLEL && XVECLEN (operands[0], 0) > 1)
	{
	  emit_call_insn (gen_call_value_multiple_internal0
			  (XEXP (XVECEXP (operands[0], 0, 0), 0),
			   operands[1], operands[2],
			   XEXP (XVECEXP (operands[0], 0, 1), 0),
			   gen_rtx_REG (SImode, GP_REG_FIRST + 31)));
	  DONE;
	}

      /* We have a call returning a DImode structure in an FP reg.
	 Strip off the now unnecessary PARALLEL.  */
      if (GET_CODE (operands[0]) == PARALLEL)
	operands[0] = XEXP (XVECEXP (operands[0], 0, 0), 0);

      emit_call_insn (gen_call_value_internal0 (operands[0], operands[1], operands[2],
					        gen_rtx_REG (SImode,
							     GP_REG_FIRST + 31)));

      DONE;
    }
}")

(define_expand "call_value_internal0"
  [(parallel [(set (match_operand 0 "" "")
		   (call (match_operand 1 "" "")
			 (match_operand 2 "" "")))
	      (clobber (match_operand:SI 3 "" ""))])]
  ""
  "")

(define_insn "call_value_internal1"
  [(set (match_operand 0 "register_operand" "=d")
        (call (mem (match_operand 1 "call_insn_operand" "r"))
              (match_operand 2 "" "i")))
   (clobber (match_operand:SI 3 "register_operand" "=d"))]
  ""
  "*
{
  register rtx target = operands[1];

  if (GET_CODE (target) == CONST_INT)
    return \"li\\t%@,%1\\n\\tjalr\\t%3,%@\";
  else if (CONSTANT_ADDRESS_P (target))
    return \"jal\\t%1\";
  else
    return \"jalr\\t%3,%1\";
}"
  [(set_attr "type"	"call")
   (set_attr "mode"	"none")])

(define_expand "call_value_multiple_internal0"
  [(parallel [(set (match_operand 0 "" "")
		   (call (match_operand 1 "" "")
			 (match_operand 2 "" "")))
	      (set (match_operand 3 "" "")
		   (call (match_dup 1)
			 (match_dup 2)))
	      (clobber (match_operand:SI 4 "" ""))])]
  ""
  "")

;; ??? May eventually need all 6 versions of the call patterns with multiple
;; return values.

(define_insn "call_value_multiple_internal1"
  [(set (match_operand 0 "register_operand" "=d")
        (call (mem (match_operand 1 "call_insn_operand" "r"))
              (match_operand 2 "" "i")))
   (set (match_operand 3 "register_operand" "=d")
   	(call (mem (match_dup 1))
              (match_dup 2)))
  (clobber (match_operand:SI 4 "register_operand" "=d"))]
  ""
  "*
{
  register rtx target = operands[1];

  if (GET_CODE (target) == CONST_INT)
    return \"li\\t%@,%1\\n\\tjalr\\t%4,%@\";
  else if (CONSTANT_ADDRESS_P (target))
    return \"jal\\t%1\";
  else
    return \"jalr\\t%4,%1\";
}"
  [(set_attr "type"	"call")
   (set_attr "mode"	"none")])

;; Call subroutine returning any type.

(define_expand "untyped_call"
  [(parallel [(call (match_operand 0 "" "")
		    (const_int 0))
	      (match_operand 1 "" "")
	      (match_operand 2 "" "")])]
  ""
  "
{
  if (operands[0])		/* silence statement not reached warnings */
    {
      int i;

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

      emit_insn (gen_blockage ());
      DONE;
    }
}")

;;
;;  ....................
;;
;;	MISC.
;;
;;  ....................
;;

(define_insn "nop"
  [(const_int 0)]
  ""
  "nop"
  [(set_attr "type"	"nop")
   (set_attr "mode"	"none")])


;; For the rare case where we need to load an address into a register
;; that cannot be recognized by the normal movsi/addsi instructions.
;; I have no idea how many insns this can actually generate.  It should
;; be rare, so over-estimating as 10 instructions should not have any
;; real performance impact.
(define_insn "leasi"
  [(set (match_operand:SI 0 "register_operand" "=d")
        (match_operand:SI 1 "address_operand" "p"))]
  "Pmode == SImode"
  "*
{
  rtx xoperands [3];

  xoperands[0] = operands[0];
  xoperands[1] = XEXP (operands[1], 0);
  xoperands[2] = XEXP (operands[1], 1);
  output_asm_insn (\"addiu\\t%0,%1,%2\", xoperands);
  return \"\";
}"
  [(set_attr "type"	"arith")
   (set_attr "mode"	"SI")
   (set_attr "length"	"40")])

(define_insn "ado16"
  [(set (match_operand:SI             0 "register_operand" "=r")
	(unspec:SI [(match_operand:SI 1 "register_operand" "r")
		    (match_operand:SI 2 "register_operand" "r")]
		UNSPEC_ADO16))]
  ""
  "ado16\\t%0, %1, %2"
)

(define_insn "ram"
  [(set (match_operand:SI             0 "register_operand" "=r")
	      (unspec:SI [(match_operand:SI 1 "register_operand" "r")
		                (match_operand:SI 2 "const_int_operand" "I")
		                (match_operand:SI 3 "const_int_operand" "I")
		                (match_operand:SI 4 "const_int_operand" "I")]
		     UNSPEC_RAM))]
  ""
  "ram\\t%0, %1, %2, %3, %4"
)

(define_insn "chkhdr"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "=r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_CHKHDR)]
  ""
  "* return iq2000_fill_delay_slot (\"chkhdr\\t%0, %1\", DELAY_LOAD, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "pkrl"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_PKRL)]
  ""
  "* return iq2000_fill_delay_slot (\"pkrl\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "cfc0"
   [(set (match_operand:SI                0 "register_operand" "=r")
    (unspec_volatile:SI [(match_operand:SI 1 "const_int_operand" "I")]
 		UNSPEC_CFC0))]
  ""
  "* return iq2000_fill_delay_slot (\"cfc0\\t%0, %%%1\", DELAY_LOAD, operands, insn);"
  [(set_attr "dslot"	"ok_in_dslot")]
)

(define_insn "cfc1"
   [(set (match_operand:SI                0 "register_operand" "=r")
   (unspec_volatile:SI [(match_operand:SI 1 "const_int_operand" "I")]
 		UNSPEC_CFC1))]
  ""
  "* return iq2000_fill_delay_slot (\"cfc1\\t%0, %%%1\", DELAY_LOAD, operands, insn);"
  [(set_attr "dslot"	"ok_in_dslot")]
)

(define_insn "cfc2"
   [(set (match_operand:SI                0 "register_operand" "=r")
   (unspec_volatile:SI [(match_operand:SI 1 "const_int_operand" "I")]
 		UNSPEC_CFC2))]
  ""
  "* return iq2000_fill_delay_slot (\"cfc2\\t%0, %%%1\", DELAY_LOAD, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "cfc3"
   [(set (match_operand:SI                0 "register_operand" "=r")
   (unspec_volatile:SI [(match_operand:SI 1 "const_int_operand" "I")]
 		UNSPEC_CFC3))]
  ""
  "* return iq2000_fill_delay_slot (\"cfc3\\t%0, %%%1\", DELAY_LOAD, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "ctc0"
  [(unspec_volatile:SI [(match_operand:SI 0 "reg_or_0_operand" "rJ")
		(match_operand:SI 1 "const_int_operand" "I")]
		UNSPEC_CTC0)]
  ""
  "* return iq2000_fill_delay_slot (\"ctc0\\t%z0, %%%1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"ok_in_dslot")]
)

(define_insn "ctc1"
  [(unspec_volatile:SI [(match_operand:SI 0 "reg_or_0_operand" "rJ")
		(match_operand:SI 1 "const_int_operand" "I")]
		UNSPEC_CTC1)]
  ""
  "* return iq2000_fill_delay_slot (\"ctc1\\t%z0, %%%1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"ok_in_dslot")]
)

(define_insn "ctc2"
  [(unspec_volatile:SI [(match_operand:SI 0 "reg_or_0_operand" "rJ")
		(match_operand:SI 1 "const_int_operand" "I")]
		UNSPEC_CTC2)]
  ""
  "* return iq2000_fill_delay_slot (\"ctc2\\t%z0, %%%1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"ok_in_dslot")]
)

(define_insn "ctc3"
  [(unspec_volatile:SI [(match_operand:SI 0 "reg_or_0_operand" "rJ")
		(match_operand:SI 1 "const_int_operand" "I")]
		UNSPEC_CTC3)]
  ""
  "* return iq2000_fill_delay_slot (\"ctc3\\t%z0, %%%1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"ok_in_dslot")]
)

(define_insn "mfc0"
   [(set (match_operand:SI                0 "register_operand" "=r")
   (unspec_volatile:SI [(match_operand:SI 1 "const_int_operand" "I")]
 		UNSPEC_MFC0))]
  ""
  "* return iq2000_fill_delay_slot (\"mfc0\\t%0, %%%1\", DELAY_LOAD, operands, insn);"
  [(set_attr "dslot"	"ok_in_dslot")]
)

(define_insn "mfc1"
   [(set (match_operand:SI                0 "register_operand" "=r")
   (unspec_volatile:SI [(match_operand:SI 1 "const_int_operand" "I")]
 		UNSPEC_MFC1))]
  ""
  "* return iq2000_fill_delay_slot (\"mfc1\\t%0, %%%1\", DELAY_LOAD, operands, insn);"
  [(set_attr "dslot"	"ok_in_dslot")]
)

(define_insn "mfc2"
   [(set (match_operand:SI                0 "register_operand" "=r")
   (unspec_volatile:SI [(match_operand:SI 1 "const_int_operand" "I")]
 		UNSPEC_MFC2))]
  ""
  "* return iq2000_fill_delay_slot (\"mfc2\\t%0, %%%1\", DELAY_LOAD, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "mfc3"
   [(set (match_operand:SI                0 "register_operand" "=r")
   (unspec_volatile:SI [(match_operand:SI 1 "const_int_operand" "I")]
 		UNSPEC_MFC3))]
  ""
  "* return iq2000_fill_delay_slot (\"mfc3\\t%0, %%%1\", DELAY_LOAD, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "mtc0"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "const_int_operand" "I")]
		UNSPEC_MTC0)]
  ""
  "* return iq2000_fill_delay_slot (\"mtc0\\t%0, %%%1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"ok_in_dslot")]
)

(define_insn "mtc1"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "const_int_operand" "I")]
		UNSPEC_MTC1)]
  ""
  "* return iq2000_fill_delay_slot (\"mtc1\\t%0, %%%1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"ok_in_dslot")]
)

(define_insn "mtc2"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "const_int_operand" "I")]
		UNSPEC_MTC2)]
  ""
  "* return iq2000_fill_delay_slot (\"mtc2\\t%0, %%%1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"ok_in_dslot")]
)

(define_insn "mtc3"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "const_int_operand" "I")]
		UNSPEC_MTC3)]
  ""
  "* return iq2000_fill_delay_slot (\"mtc3\\t%0, %%%1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"ok_in_dslot")]
)

(define_insn "lur"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_LUR)]
  ""
  "* return iq2000_fill_delay_slot (\"lur\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "rb"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_RB)]
  ""
  "* return iq2000_fill_delay_slot (\"rb\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "rx"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_RX)]
  ""
  "* return iq2000_fill_delay_slot (\"rx\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "srrd"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")]
		UNSPEC_SRRD)]
  ""
  "* return iq2000_fill_delay_slot (\"srrd\\t%0\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "srwr"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_SRWR)]
  ""
  "* return iq2000_fill_delay_slot (\"srwr\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "wb"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_WB)]
  ""
  "* return iq2000_fill_delay_slot (\"wb\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "wx"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_WX)]
  ""
  "* return iq2000_fill_delay_slot (\"wx\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "luc32"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_LUC32)]
  ""
  "* return iq2000_fill_delay_slot (\"luc32\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "luc32l"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_LUC32L)]
  ""
  "* return iq2000_fill_delay_slot (\"luc32l\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "luc64"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_LUC64)]
  ""
  "* return iq2000_fill_delay_slot (\"luc64\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "luc64l"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_LUC64L)]
  ""
  "* return iq2000_fill_delay_slot (\"luc64l\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "luk"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_LUK)]
  ""
  "* return iq2000_fill_delay_slot (\"luk\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"ok_in_dslot")]
)

(define_insn "lulck"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")]
		UNSPEC_LULCK)]
  ""
  "* return iq2000_fill_delay_slot (\"lulck\\t%0\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "lum32"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_LUM32)]
  ""
  "* return iq2000_fill_delay_slot (\"lum32\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "lum32l"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_LUM32L)]
  ""
  "* return iq2000_fill_delay_slot (\"lum32l\\t%0, %1\", DELAY_NONE, operands, insn);" 
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "lum64"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_LUM64)]
  ""
  "* return iq2000_fill_delay_slot (\"lum64\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "lum64l"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_LUM64L)]
  ""
  "* return iq2000_fill_delay_slot (\"lum64l\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "lurl"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_LURL)]
  ""
  "* return iq2000_fill_delay_slot (\"lurl\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "mrgb"
  [(set (match_operand:SI                 0 "register_operand" "=r")
  	(unspec_volatile:SI [(match_operand:SI 1 "register_operand" "r")
		(match_operand:SI 2 "register_operand" "r")
		(match_operand:SI 3 "const_int_operand" "I")]
		UNSPEC_MRGB))]
  ""
  "* return iq2000_fill_delay_slot (\"mrgb\\t%0, %1, %2, %3\", DELAY_LOAD, operands, insn);"
  [(set_attr "dslot"	"ok_in_dslot")]
)

(define_insn "srrdl"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")]
		UNSPEC_SRRDL)]
  ""
  "* return iq2000_fill_delay_slot (\"srrdl\\t%0\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "srulck"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")]
		UNSPEC_SRULCK)]
  ""
  "* return iq2000_fill_delay_slot (\"srulck\\t%0\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "srwru"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_SRWRU)]
  ""
  "* return iq2000_fill_delay_slot (\"srwru\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "trapqfl"
  [(unspec_volatile:SI [(const_int 1)] UNSPEC_TRAPQFL)]
  ""
  "* return iq2000_fill_delay_slot (\"trapqfl\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "trapqne"
  [(unspec_volatile:SI [(const_int 2)] UNSPEC_TRAPQNE)]
  ""
  "* return iq2000_fill_delay_slot (\"trapqne\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "traprel"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")]
		UNSPEC_TRAPREL)]
  ""
  "* return iq2000_fill_delay_slot (\"traprel %0\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "wbu"
  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")
		(match_operand:SI 1 "register_operand" "r")]
		UNSPEC_WBU)]
  ""
  "* return iq2000_fill_delay_slot (\"wbu\\t%0, %1\", DELAY_NONE, operands, insn);"
  [(set_attr "dslot"	"not_in_dslot")]
)

(define_insn "syscall"
  [(unspec_volatile:SI [(const_int 2)] UNSPEC_SYSCALL)]
  ""
  "syscall"
  [(set_attr "dslot"    "not_in_dslot")]
)