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;; Machine description for GNU compiler, OpenRISC 1000 family, OR32 ISA

;; Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,

;; 2009, 2010 Free Software Foundation, Inc.

;; Copyright (C) 2010 Embecosm Limited

;; Contributed by Damjan Lampret  in 1999.

;; Major optimizations by Matjaz Breskvar  in 2005.

;; Floating point additions by Jungsook Yang 

;;                             Julius Baxter  in 2010

;; Updated for GCC 4.5 by Jeremy Bennett 

;; and Joern Rennecke  in 2010

;; This file is part of GNU CC.

;; This program 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 of the License, or (at your option)

;; any later version.

;;

;; This program 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 this program.  If not, see . */

(define_constants [

  (SP_REG 1)

  (FP_REG 2) ; hard frame pointer

  (CC_REG 34)

  ;; unspec values

  (UNSPEC_FRAME 0)

  ;; unspec_volatile values

  (UNSPECV_SIBCALL_EPILOGUE 0)

])

(include "predicates.md")

(include "constraints.md")

(define_attr "type"

  "unknown,load,store,move,extend,logic,add,mul,shift,compare,branch,jump,fp,jump_restore"

  (const_string "unknown"))

;; Number of machine instructions required to implement an insn.

(define_attr "length" "" (const_int 1))

;; Single delay slot after branch or jump instructions, wich may contain any

;; instruction but another branch or jump.

(define_delay (eq_attr "type" "branch,jump")

               [(and (eq_attr "type" "!branch,jump")

                     (eq_attr "length" "1")) (nil) (nil)])

;; ALU is modelled as a single functional unit, which is reserved for varying

;; numbers of slots.

;;

;; I think this is all incorrect for the OR1K. The latency says when the

;; result will be ready, not how long the pipeline takes to execute.

(define_cpu_unit "or32_alu")

(define_insn_reservation "bit_unit" 3 (eq_attr "type" "shift") "or32_alu")

(define_insn_reservation "lsu_load" 3 (eq_attr "type" "load") "or32_alu*3")

(define_insn_reservation "lsu_store" 2 (eq_attr "type" "store") "or32_alu")

(define_insn_reservation "alu_unit" 2

                         (eq_attr "type" "add,logic,extend,move,compare")

                         "or32_alu")

(define_insn_reservation "mul_unit" 16 (eq_attr "type" "mul") "or32_alu*16")

;; Called after register allocation to add any instructions needed for the

;; prologue.  Using a prologue insn is favored compared to putting all of the

;; instructions in output_function_prologue(), since it allows the scheduler

;; to intermix instructions with the saves of the caller saved registers.  In

;; some cases, it might be necessary to emit a barrier instruction as the last

;; insn to prevent such scheduling.

(define_expand "prologue"

  [(use (const_int 1))]

  "TARGET_SCHED_LOGUE"

{

  or32_expand_prologue ();

  DONE;

})

;; Called after register allocation to add any instructions needed for the

;; epilogue.  Using an epilogue insn is favored compared to putting all of the

;; instructions in output_function_epilogue(), since it allows the scheduler

;; to intermix instructions with the restores of the caller saved registers.

;; In some cases, it might be necessary to emit a barrier instruction as the

;; first insn to prevent such scheduling.

(define_expand "epilogue"

  [(use (const_int 2))]

  "TARGET_SCHED_LOGUE"

{

  or32_expand_epilogue (NULL_RTX);

  DONE;

})

(define_insn_and_split "sibcall_epilogue"

  [(unspec_volatile [(const_int 2)] UNSPECV_SIBCALL_EPILOGUE)]

  "TARGET_SCHED_LOGUE"

  "#"

  ""

  [(pc)]

{

  or32_expand_epilogue (curr_insn);

  DONE;

})

(define_insn "frame_alloc_fp"

  [(set (reg:SI SP_REG)

        (plus:SI (reg:SI SP_REG)

                 (match_operand:SI 0 "nonmemory_operand" "r,I")))

   (clobber (mem:QI (plus:SI (reg:SI FP_REG)

                             (unspec:SI [(const_int FP_REG)] UNSPEC_FRAME))))]

  ""

  "@

   l.add\tr1,r1,%0\t# allocate frame

   l.addi\tr1,r1,%0\t# allocate frame"

  [(set_attr "type" "add")

   (set_attr "length" "1")])

(define_insn "frame_dealloc_fp"

  [(set (reg:SI SP_REG) (reg:SI FP_REG))

   (clobber (mem:QI (plus:SI (reg:SI FP_REG)

                             (unspec:SI [(const_int FP_REG)] UNSPEC_FRAME))))]

  ""

  "l.ori\tr1,r2,0\t# deallocate frame"

  [(set_attr "type" "logic")

   (set_attr "length" "1")])

(define_insn "frame_dealloc_sp"

  [(set (reg:SI SP_REG)

        (plus:SI (reg:SI SP_REG)

                 (match_operand:SI 0 "nonmemory_operand" "r,I")))

   (clobber (mem:QI (plus:SI (reg:SI SP_REG)

                             (unspec:SI [(const_int SP_REG)] UNSPEC_FRAME))))]

  ""

  "@

   l.add\tr1,r1,%0

   l.addi\tr1,r1,%0"

  [(set_attr "type" "add")

   (set_attr "length" "1")])

(define_insn "return_internal"

  [(return)

   (use (match_operand 0 "pmode_register_operand" ""))]

  "TARGET_SCHED_LOGUE"

  "l.jr    \t%0%("

  [(set_attr "type" "jump")

   (set_attr "length" "1")])

;;

;; Sibcalls

;;

(define_expand "sibcall"

  [(parallel [(call (match_operand 0 "" "")

                    (match_operand 1 "" ""))

              (use (match_operand 2 "" ""))     ;; next_arg_reg

              (use (match_operand 3 "" ""))])]  ;; struct_value_size_rtx

  ""

  "

{

  or32_expand_sibcall (0, XEXP (operands[0], 0), operands[1]);

  DONE;

}")

(define_expand "sibcall_value"

  [(set (match_operand 0 "" "")

                   (call (match_operand:SI 1 "" "")

                         (match_operand 2 "" "")))]

  ""

  "

{

  or32_expand_sibcall (operands[0], XEXP (operands[1], 0), operands[2]);

  DONE;

}")

(define_insn "sibcall_internal"

  [(call (mem:SI (match_operand:SI 0 "sibcall_insn_operand" "s,Rsc,r"))

         (match_operand 1 "" ""))

   (use (reg:SI 9))]

  ""

  "@

   l.j\t%S0%(\t# sibcall s

   l.jr\t%0%(\t# sibcall Rsc

   l.jr\t%0\t\t# sibcall r%J0"

  [(set_attr "type" "jump,jump,jump_restore")])

;;

;; movQI

;;

(define_expand "movqi"

  [(set (match_operand:QI 0 "general_operand" "")

        (match_operand:QI 1 "general_operand" ""))]

  ""

  "

      if (can_create_pseudo_p())

        {

          if (GET_CODE (operands[1]) == CONST_INT)

            {

              rtx reg = gen_reg_rtx (SImode);

              emit_insn (gen_movsi (reg, operands[1]));

              operands[1] = gen_lowpart (QImode, reg);

            }

          if (GET_CODE (operands[1]) == MEM && optimize > 0)

            {

              rtx reg = gen_reg_rtx (SImode);

              emit_insn (gen_rtx_SET (SImode, reg,

                                  gen_rtx_ZERO_EXTEND (SImode,

                                                       operands[1])));

              operands[1] = gen_lowpart (QImode, reg);

            }

          if (GET_CODE (operands[0]) != REG)

            operands[1] = force_reg (QImode, operands[1]);

        }

")

(define_insn "*movqi_internal"

  [(set (match_operand:QI 0 "nonimmediate_operand" "=m,r,r,r,r")

        (match_operand:QI 1 "general_operand"       "r,r,I,K,m"))]

  ""

  "@

   l.sb    \t%0,%1\t    # movqi

   l.ori   \t%0,%1,0\t  # movqi: move reg to reg

   l.addi  \t%0,r0,%1\t # movqi: move immediate

   l.ori   \t%0,r0,%1\t # movqi: move immediate

   l.lbz   \t%0,%1\t    # movqi"

  [(set_attr "type" "store,add,add,logic,load")])

;;

;; movHI

;;

(define_expand "movhi"

  [(set (match_operand:HI 0 "general_operand" "")

        (match_operand:HI 1 "general_operand" ""))]

  ""

  "

      if (can_create_pseudo_p())

        {

          if (GET_CODE (operands[1]) == CONST_INT)

            {

              rtx reg = gen_reg_rtx (SImode);

              emit_insn (gen_movsi (reg, operands[1]));

              operands[1] = gen_lowpart (HImode, reg);

            }

          if (GET_CODE (operands[1]) == MEM && optimize > 0)

            {

              rtx reg = gen_reg_rtx (SImode);

              emit_insn (gen_rtx_SET (SImode, reg,

                                      gen_rtx_ZERO_EXTEND (SImode,

                                                           operands[1])));

              operands[1] = gen_lowpart (HImode, reg);

            }

          if (GET_CODE (operands[0]) != REG)

            operands[1] = force_reg (HImode, operands[1]);

        }

")

(define_insn "*movhi_internal"

  [(set (match_operand:HI 0 "nonimmediate_operand" "=m,r,r,r,r")

        (match_operand:HI 1 "general_operand"       "r,r,I,K,m"))]

  ""

  "@

   l.sh    \t%0,%1\t # movhi

   l.ori   \t%0,%1,0\t # movhi: move reg to reg

   l.addi  \t%0,r0,%1\t # movhi: move immediate

   l.ori   \t%0,r0,%1\t # movhi: move immediate

   l.lhz   \t%0,%1\t # movhi"

  [(set_attr "type" "store,add,add,logic,load")])

(define_expand "movsi"

  [(set (match_operand:SI 0 "general_operand" "")

        (match_operand:SI 1 "general_operand" ""))]

  ""

{

  /* Working with CONST_INTs is easier, so convert

     a double if needed.  */

     if (GET_CODE (operands[1]) == CONST_DOUBLE) {

           operands[1] = GEN_INT (CONST_DOUBLE_LOW (operands[1]));

  }

  /* Handle sets of MEM first.  */

  if (GET_CODE (operands[0]) == MEM)

  {

   if (register_operand(operands[1], SImode)

                       || (operands[1] == const0_rtx))

        goto movsi_is_ok;

      if (! reload_in_progress)

        {

          operands[0] = validize_mem (operands[0]);

          operands[1] = force_reg (SImode, operands[1]);

        }

    }

  /* This makes sure we will not get rematched due to splittage.  */

  if (! CONSTANT_P (operands[1]) || input_operand (operands[1], SImode))

    ;

  else if (CONSTANT_P (operands[1])

           && GET_CODE (operands[1]) != HIGH

           && GET_CODE (operands[1]) != LO_SUM)

    {

      or32_emit_set_const32 (operands[0], operands[1]);

      DONE;

    }

 movsi_is_ok:

  ;

})

;;

;; movSI

;;

(define_insn "*movsi_insn"

  [(set (match_operand:SI 0 "nonimmediate_operand" "=r,r,r,r,r,m")

        (match_operand:SI 1 "input_operand"       "I,K,M,r,m,r"))]

  "(register_operand (operands[0], SImode)

    || register_operand (operands[1], SImode)

    || (operands[1] == const0_rtx))"

  "@

   l.addi  \t%0,r0,%1\t # move immediate I

   l.ori   \t%0,r0,%1\t # move immediate K

   l.movhi \t%0,hi(%1)\t # move immediate M

   l.ori   \t%0,%1,0\t # move reg to reg

   l.lwz   \t%0,%1\t # SI load

   l.sw    \t%0,%1\t # SI store"

  [(set_attr "type" "add,load,store,add,logic,move")

   (set_attr "length" "1,1,1,1,1,1")])

(define_insn "movsi_lo_sum"

  [(set (match_operand:SI 0 "register_operand" "=r")

        (lo_sum:SI (match_operand:SI 1 "register_operand" "r")

                   (match_operand:SI 2 "immediate_operand" "i")))]

  ""

  "l.ori   \t%0,%1,lo(%2)"

 [(set_attr "type" "logic")

   (set_attr "length" "1")])

(define_insn "movsi_high"

  [(set (match_operand:SI 0 "register_operand" "=r")

        (high:SI (match_operand:SI 1 "immediate_operand" "i")))]

  ""

  "l.movhi  \t%0,hi(%1)"

[(set_attr "type" "move")

   (set_attr "length" "1")])

(define_insn_and_split "movsi_insn_big"

  [(set (match_operand:SI 0 "register_operand" "=r")

        (match_operand:SI 1 "immediate_operand" "i"))]

  "GET_CODE (operands[1]) != CONST_INT"

  "l.movhi \t%0,hi(%1)\;l.ori   \t%0,%0,lo(%1)"

  ;; the switch of or32 bfd to Rela allows us to schedule insns separately.

  "&& reload_completed

   && GET_CODE (operands[1]) != HIGH && GET_CODE (operands[1]) != LO_SUM"

  [(pc)]

{

  emit_insn (gen_movsi_high (operands[0], operands[1]));

  emit_insn (gen_movsi_lo_sum (operands[0], operands[0], operands[1]));

  DONE;

}

  [(set_attr "type" "move")

   (set_attr "length" "2")])

;;

;; Conditional Branches & Moves

;;

(define_expand "addsicc"

  [(match_operand:SI 0 "register_operand" "")

   (match_operand 1 "comparison_operator" "")

   (match_operand:SI 2 "register_operand" "")

   (match_operand:SI 3 "register_operand" "")]

  ""

  "FAIL;")

(define_expand "addhicc"

  [(match_operand:HI 0 "register_operand" "")

   (match_operand 1 "comparison_operator" "")

   (match_operand:HI 2 "register_operand" "")

   (match_operand:HI 3 "register_operand" "")]

  ""

  "FAIL;")

(define_expand "addqicc"

  [(match_operand:QI 0 "register_operand" "")

   (match_operand 1 "comparison_operator" "")

   (match_operand:QI 2 "register_operand" "")

   (match_operand:QI 3 "register_operand" "")]

  ""

  "FAIL;")

;;

;; conditional moves

;;

(define_expand "movsicc"

   [(set (match_operand:SI 0 "register_operand" "")

         (if_then_else:SI (match_operand 1 "comparison_operator" "")

                          (match_operand:SI 2 "register_operand" "")

                          (match_operand:SI 3 "register_operand" "")))]

  "TARGET_MASK_CMOV"

  "

{

  if (or32_emit_cmove (operands[0], operands[1], operands[2], operands[3]))

    DONE;

}")

(define_expand "movhicc"

   [(set (match_operand:HI 0 "register_operand" "")

         (if_then_else:SI (match_operand 1 "comparison_operator" "")

                          (match_operand:HI 2 "register_operand" "")

                          (match_operand:HI 3 "register_operand" "")))]

  ""

  "

{

    FAIL;

}")

(define_expand "movqicc"

   [(set (match_operand:QI 0 "register_operand" "")

         (if_then_else:SI (match_operand 1 "comparison_operator" "")

                          (match_operand:QI 2 "register_operand" "")

                          (match_operand:QI 3 "register_operand" "")))]

  ""

  "

{

    FAIL;

}")

;; We use the BASE_REGS for the cmov input operands because, if rA is

;; 0, the value of 0 is placed in rD upon truth.  Similarly for rB

;; because we may switch the operands and rB may end up being rA.

(define_insn "cmov"

  [(set (match_operand:SI 0 "register_operand" "=r")

        (if_then_else:SI

         (match_operator 1 "comparison_operator"

                         [(match_operand 4 "cc_reg_operand" "")

                          (const_int 0)])

         (match_operand:SI 2 "register_operand" "r")

         (match_operand:SI 3 "register_operand" "r")))]

  "TARGET_MASK_CMOV"

  "*

   return or32_output_cmov(operands);

  ")

;;

;;  ....................

;;

;;      COMPARISONS

;;

;;  ....................

;; Flow here is rather complex:

;;

;;  1)  The cmp{si,di,sf,df} routine is called.  It deposits the

;;      arguments into the branch_cmp array, and the type into

;;      branch_type.  No RTL is generated.

;;

;;  2)  The appropriate branch define_expand is called, which then

;;      creates the appropriate RTL for the comparison and branch.

;;      Different CC modes are used, based on what type of branch is

;;      done, so that we can constrain things appropriately.  There

;;      are assumptions in the rest of GCC that break if we fold the

;;      operands into the branches for integer operations, and use cc0

;;      for floating point, so we use the fp status register instead.

;;      If needed, an appropriate temporary is created to hold the

;;      of the integer compare.

;; Compare insns are next.  Note that the RS/6000 has two types of compares,

;; signed & unsigned, and one type of branch.

;;

;; Start with the DEFINE_EXPANDs to generate the rtl for compares, scc

;; insns, and branches.  We store the operands of compares until we see

;; how it is used.

;; JPB 31-Aug-10: cmpxx appears to be obsolete in GCC 4.5. Needs more

;; investigation.

;;(define_expand "cmpsi"

;;  [(set (reg:CC CC_REG)

;;      (compare:CC (match_operand:SI 0 "register_operand" "")

;;                  (match_operand:SI 1 "nonmemory_operand" "")))]

;;  ""

;;  {

;;   if (GET_CODE (operands[0]) == MEM && GET_CODE (operands[1]) == MEM)

;;      operands[0] = force_reg (SImode, operands[0]);

;;      or32_compare_op0 = operands[0];

;;     or32_compare_op1 = operands[1];

;;      DONE;

;;      })

;; (define_expand "cmpsf"

;;   [(set (reg:CC CC_REG)

;;      (compare:CC (match_operand:SF 0 "register_operand" "")

;;                  (match_operand:SF 1 "register_operand" "")))]

;;   "TARGET_HARD_FLOAT"

;;   {

;;    if (GET_CODE (operands[0]) == MEM && GET_CODE (operands[1]) == MEM)

;;       operands[0] = force_reg (SFmode, operands[0]);

;;       or32_compare_op0 = operands[0];

;;       or32_compare_op1 = operands[1];

;;       DONE;

;;       })

(define_expand "cbranchsi4"

  [(match_operator 0 "comparison_operator"

    [(match_operand:SI 1 "register_operand")

     (match_operand:SI 2 "nonmemory_operand")])

   (match_operand 3 "")]

   ""

   {

   or32_expand_conditional_branch (operands, SImode);

   DONE;

   })

(define_expand "cbranchsf4"

  [(match_operator 0 "comparison_operator"

    [(match_operand:SI 1 "register_operand")

     (match_operand:SI 2 "register_operand")])

   (match_operand 3 "")]

   "TARGET_HARD_FLOAT"

   {

   or32_expand_conditional_branch (operands, SFmode);

   DONE;

   })

;;

;; Setting a CCxx registers from comparision

;;

;; Here are the actual compare insns.

(define_insn "*cmpsi_eq"

  [(set (reg:CCEQ CC_REG)

        (compare:CCEQ (match_operand:SI 0 "register_operand" "r,r")

                      (match_operand:SI 1 "nonmemory_operand" "I,r")))]

  ""

  "@

   l.sfeqi\t%0,%1

   l.sfeq \t%0,%1")

(define_insn "*cmpsi_ne"

  [(set (reg:CCNE CC_REG)

        (compare:CCNE (match_operand:SI 0 "register_operand" "r,r")

                      (match_operand:SI 1 "nonmemory_operand" "I,r")))]

  ""

  "@

   l.sfnei\t%0,%1

   l.sfne \t%0,%1")

(define_insn "*cmpsi_gt"

  [(set (reg:CCGT CC_REG)

        (compare:CCGT (match_operand:SI 0 "register_operand" "r,r")

                      (match_operand:SI 1 "nonmemory_operand" "I,r")))]

  ""

  "@

   l.sfgtsi\t%0,%1

   l.sfgts \t%0,%1")

(define_insn "*cmpsi_gtu"

  [(set (reg:CCGTU CC_REG)

        (compare:CCGTU (match_operand:SI 0 "register_operand" "r,r")

                       (match_operand:SI 1 "nonmemory_operand" "I,r")))]

  ""

  "@

   l.sfgtui\t%0,%1

   l.sfgtu \t%0,%1")

(define_insn "*cmpsi_lt"

  [(set (reg:CCLT CC_REG)

        (compare:CCLT (match_operand:SI 0 "register_operand" "r,r")

                      (match_operand:SI 1 "nonmemory_operand" "I,r")))]

  ""

  "@

   l.sfltsi\t%0,%1

   l.sflts \t%0,%1")

(define_insn "*cmpsi_ltu"

  [(set (reg:CCLTU CC_REG)

        (compare:CCLTU (match_operand:SI 0 "register_operand" "r,r")

                       (match_operand:SI 1 "nonmemory_operand" "I,r")))]

  ""

  "@

   l.sfltui\t%0,%1

   l.sfltu \t%0,%1")

(define_insn "*cmpsi_ge"

  [(set (reg:CCGE CC_REG)

        (compare:CCGE (match_operand:SI 0 "register_operand" "r,r")

                      (match_operand:SI 1 "nonmemory_operand" "I,r")))]

  ""

  "@

   l.sfgesi\t%0,%1

   l.sfges \t%0,%1")

(define_insn "*cmpsi_geu"

  [(set (reg:CCGEU CC_REG)

        (compare:CCGEU (match_operand:SI 0 "register_operand" "r,r")

                       (match_operand:SI 1 "nonmemory_operand" "I,r")))]

  ""

  "@

   l.sfgeui\t%0,%1

   l.sfgeu \t%0,%1")

(define_insn "*cmpsi_le"

  [(set (reg:CCLE CC_REG)

        (compare:CCLE (match_operand:SI 0 "register_operand" "r,r")

                      (match_operand:SI 1 "nonmemory_operand" "I,r")))]

  ""

  "@

   l.sflesi\t%0,%1

   l.sfles \t%0,%1")

(define_insn "*cmpsi_leu"

  [(set (reg:CCLEU CC_REG)

        (compare:CCLEU (match_operand:SI 0 "register_operand" "r,r")

                       (match_operand:SI 1 "nonmemory_operand" "I,r")))]

  ""

  "@

   l.sfleui\t%0,%1

   l.sfleu \t%0,%1")

;; Single precision floating point evaluation instructions

(define_insn "*cmpsf_eq"

  [(set (reg:CCEQ CC_REG)

        (compare:CCEQ (match_operand:SF 0 "register_operand" "r,r")

                      (match_operand:SF 1 "register_operand" "r,r")))]

  "TARGET_HARD_FLOAT"

  "lf.sfeq.s\t%0,%1")

(define_insn "*cmpsf_ne"

  [(set (reg:CCNE CC_REG)

        (compare:CCNE (match_operand:SF 0 "register_operand" "r,r")

                      (match_operand:SF 1 "register_operand" "r,r")))]

  "TARGET_HARD_FLOAT"

  "lf.sfne.s\t%0,%1")

(define_insn "*cmpsf_gt"

  [(set (reg:CCGT CC_REG)

        (compare:CCGT (match_operand:SF 0 "register_operand" "r,r")

                      (match_operand:SF 1 "register_operand" "r,r")))]

  "TARGET_HARD_FLOAT"

  "lf.sfgt.s\t%0,%1")

(define_insn "*cmpsf_ge"

  [(set (reg:CCGE CC_REG)

        (compare:CCGE (match_operand:SF 0 "register_operand" "r,r")

                      (match_operand:SF 1 "register_operand" "r,r")))]

  "TARGET_HARD_FLOAT"

  "lf.sfge.s\t%0,%1")

(define_insn "*cmpsf_lt"

  [(set (reg:CCLT CC_REG)

        (compare:CCLT (match_operand:SF 0 "register_operand" "r,r")

                      (match_operand:SF 1 "register_operand" "r,r")))]

  "TARGET_HARD_FLOAT"

  "lf.sflt.s\t%0,%1")

(define_insn "*cmpsf_le"

  [(set (reg:CCLE CC_REG)

        (compare:CCLE (match_operand:SF 0 "register_operand" "r,r")

                      (match_operand:SF 1 "register_operand" "r,r")))]

  "TARGET_HARD_FLOAT"

  "lf.sfle.s\t%0,%1")

(define_insn "*bf"

  [(set (pc)

        (if_then_else (match_operator 1 "comparison_operator"

                                      [(match_operand 2

                                                      "cc_reg_operand" "")

                                       (const_int 0)])

                      (label_ref (match_operand 0 "" ""))

                      (pc)))]

  ""

  "*

   return or32_output_bf(operands);

  "

  [(set_attr "type" "branch")

   (set_attr "length" "1")])

;;

;;

;;

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;;

;;

(define_insn "movdi"

  [(set (match_operand:DI 0 "nonimmediate_operand" "=r, r, m, r")

        (match_operand:DI 1 "general_operand"      " r, m, r, i"))]

  ""

  "*

    return or32_output_move_double (operands);

  "

  [(set_attr "length" "2,2,2,3")])

;; Moving double and single precision floating point values

(define_insn "movdf"

  [(set (match_operand:DF 0 "nonimmediate_operand" "=r, r, m, r")

        (match_operand:DF 1 "general_operand"      " r, m, r, i"))]

  ""

  "*

    return or32_output_move_double (operands);

  "

  [(set_attr "length" "2,2,2,3")])

(define_insn "movsf"

  [(set (match_operand:SF 0 "general_operand" "=r,r,m")

        (match_operand:SF 1 "general_operand"  "r,m,r"))]

  ""

  "@

   l.ori   \t%0,%1,0\t # movsf

   l.lwz   \t%0,%1\t # movsf

   l.sw    \t%0,%1\t # movsf"

  [(set_attr "type" "move,load,store")

   (set_attr "length" "1,1,1")])

;;

;; extendqisi2

;;

(define_expand "extendqisi2"

  [(use (match_operand:SI 0 "register_operand" ""))

   (use (match_operand:QI 1 "nonimmediate_operand" ""))]

  ""

  "

{

  if (TARGET_MASK_SEXT)

    emit_insn (gen_extendqisi2_sext(operands[0], operands[1]));

  else {

    if ( GET_CODE(operands[1]) == MEM ) {

      emit_insn (gen_extendqisi2_no_sext_mem(operands[0], operands[1]));

    }

    else {

      emit_insn (gen_extendqisi2_no_sext_reg(operands[0], operands[1]));

    }

 }

 DONE;

}")

(define_insn "extendqisi2_sext"

  [(set (match_operand:SI 0 "register_operand" "=r,r")

        (sign_extend:SI (match_operand:QI 1 "nonimmediate_operand" "r,m")))]

  "TARGET_MASK_SEXT"

  "@

   l.extbs \t%0,%1\t # extendqisi2_has_signed_extend

   l.lbs   \t%0,%1\t # extendqisi2_has_signed_extend"

  [(set_attr "length" "1,1")

   (set_attr "type" "extend,load")])

(define_insn "extendqisi2_no_sext_mem"

  [(set (match_operand:SI 0 "register_operand" "=r")

        (sign_extend:SI (match_operand:QI 1 "memory_operand" "m")))]

  "!TARGET_MASK_SEXT"

  "l.lbs   \t%0,%1\t # extendqisi2_no_sext_mem"

  [(set_attr "length" "1")

   (set_attr "type" "load")])

(define_expand "extendqisi2_no_sext_reg"

  [(set (match_dup 2)

        (ashift:SI (match_operand:QI 1 "register_operand" "")

                   (const_int 24)))

   (set (match_operand:SI 0 "register_operand" "")

        (ashiftrt:SI (match_dup 2)

                     (const_int 24)))]

  "!TARGET_MASK_SEXT"

  "

{

  operands[1] = gen_lowpart (SImode, operands[1]);

  operands[2] = gen_reg_rtx (SImode); }")

;;

;; extendhisi2

;;

(define_expand "extendhisi2"

  [(use (match_operand:SI 0 "register_operand" ""))

   (use (match_operand:HI 1 "nonimmediate_operand" ""))]

  ""

  "

{

  if (TARGET_MASK_SEXT)

    emit_insn (gen_extendhisi2_sext(operands[0], operands[1]));

  else {

    if ( GET_CODE(operands[1]) == MEM ) {

      emit_insn (gen_extendhisi2_no_sext_mem(operands[0], operands[1]));

    }

    else {

      emit_insn (gen_extendhisi2_no_sext_reg(operands[0], operands[1]));

    }

 }

 DONE;

}")

(define_insn "extendhisi2_sext"

  [(set (match_operand:SI 0 "register_operand" "=r,r")

        (sign_extend:SI (match_operand:HI 1 "nonimmediate_operand" "r,m")))]

  "TARGET_MASK_SEXT"

  "@

   l.exths \t%0,%1\t # extendhisi2_has_signed_extend

   l.lhs   \t%0,%1\t # extendhisi2_has_signed_extend"

  [(set_attr "length" "1,1")

   (set_attr "type" "extend,load")])

(define_insn "extendhisi2_no_sext_mem"

  [(set (match_operand:SI 0 "register_operand" "=r")

        (sign_extend:SI (match_operand:HI 1 "memory_operand" "m")))]

  "!TARGET_MASK_SEXT"

  "l.lhs   \t%0,%1\t # extendhisi2_no_sext_mem"

  [(set_attr "length" "1")

   (set_attr "type" "load")])

(define_expand "extendhisi2_no_sext_reg"

  [(set (match_dup 2)

        (ashift:SI (match_operand:HI 1 "register_operand" "")

                   (const_int 16)))

   (set (match_operand:SI 0 "register_operand" "")

        (ashiftrt:SI (match_dup 2)

                     (const_int 16)))]

  "!TARGET_MASK_SEXT"

  "

{

  operands[1] = gen_lowpart (SImode, operands[1]);

  operands[2] = gen_reg_rtx (SImode); }")

;;

;; zero_extend2

;;

(define_insn "zero_extendqisi2"

  [(set (match_operand:SI 0 "register_operand" "=r,r")

        (zero_extend:SI (match_operand:QI 1 "nonimmediate_operand" "r,m")))]

  ""

  "@

   l.andi  \t%0,%1,0xff\t # zero_extendqisi2

   l.lbz   \t%0,%1\t # zero_extendqisi2"

  [(set_attr "type" "logic,load")

   (set_attr "length" "1,1")])

(define_insn "zero_extendhisi2"

  [(set (match_operand:SI 0 "register_operand" "=r,r")

        (zero_extend:SI (match_operand:HI 1 "nonimmediate_operand" "r,m")))]

  ""

  "@

   l.andi  \t%0,%1,0xffff\t # zero_extendqisi2

   l.lhz   \t%0,%1\t # zero_extendqisi2"

  [(set_attr "type" "logic,load")

   (set_attr "length" "1,1")])

;;

;; Shift/rotate operations

;;

(define_insn "ashlsi3"

  [(set (match_operand:SI 0 "register_operand" "=r,r")

        (ashift:SI (match_operand:SI 1 "register_operand" "r,r")

                   (match_operand:SI 2 "nonmemory_operand" "r,L")))]

  ""

  "@

   l.sll   \t%0,%1,%2

   l.slli  \t%0,%1,%2"

  [(set_attr "type" "shift,shift")

   (set_attr "length" "1,1")])

(define_insn "ashrsi3"

  [(set (match_operand:SI 0 "register_operand" "=r,r")

        (ashiftrt:SI (match_operand:SI 1 "register_operand" "r,r")

                   (match_operand:SI 2 "nonmemory_operand" "r,L")))]

  ""

  "@

   l.sra   \t%0,%1,%2

   l.srai  \t%0,%1,%2"

  [(set_attr "type" "shift,shift")

   (set_attr "length" "1,1")])

(define_insn "lshrsi3"

  [(set (match_operand:SI 0 "register_operand" "=r,r")

        (lshiftrt:SI (match_operand:SI 1 "register_operand" "r,r")

                   (match_operand:SI 2 "nonmemory_operand" "r,L")))]

  ""

  "@

   l.srl   \t%0,%1,%2

   l.srli  \t%0,%1,%2"

  [(set_attr "type" "shift,shift")

   (set_attr "length" "1,1")])

(define_insn "rotrsi3"

  [(set (match_operand:SI 0 "register_operand" "=r,r")

        (rotatert:SI (match_operand:SI 1 "register_operand" "r,r")

                   (match_operand:SI 2 "nonmemory_operand" "r,L")))]

  "TARGET_MASK_ROR"

  "@

   l.ror   \t%0,%1,%2

   l.rori  \t%0,%1,%2"

  [(set_attr "type" "shift,shift")

   (set_attr "length" "1,1")])

;;

;; Logical bitwise operations