Annotation of gcc/config/romp.md, revision 1.1

1.1     ! root        1: ;;- Machine description for ROMP chip for GNU C compiler
        !             2: ;;   Copyright (C) 1988, 1991 Free Software Foundation, Inc.
        !             3: ;;   Contributed by Richard Kenner ([email protected])
        !             4: 
        !             5: ;; This file is part of GNU CC.
        !             6: 
        !             7: ;; GNU CC is free software; you can redistribute it and/or modify
        !             8: ;; it under the terms of the GNU General Public License as published by
        !             9: ;; the Free Software Foundation; either version 2, or (at your option)
        !            10: ;; any later version.
        !            11: 
        !            12: ;; GNU CC is distributed in the hope that it will be useful,
        !            13: ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            14: ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            15: ;; GNU General Public License for more details.
        !            16: 
        !            17: ;; You should have received a copy of the GNU General Public License
        !            18: ;; along with GNU CC; see the file COPYING.  If not, write to
        !            19: ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
        !            20: 
        !            21: 
        !            22: ;;- See file "rtl.def" for documentation on define_insn, match_*, et. al.
        !            23: 
        !            24: ;; Define the attributes for the ROMP.
        !            25: 
        !            26: ;; Insn type.  Used to default other attribute values.
        !            27: 
        !            28: (define_attr "type"
        !            29:   "branch,return,fp,load,loadz,store,call,address,arith,compare,multi,misc"
        !            30:   (const_string "arith"))
        !            31: 
        !            32: ;; Length in bytes.
        !            33: 
        !            34: (define_attr "length" ""
        !            35:   (cond [(eq_attr "type" "branch")
        !            36:         (if_then_else (and (ge (minus (pc) (match_dup 0))
        !            37:                                (const_int -256))
        !            38:                            (le (minus (pc) (match_dup 0))
        !            39:                                (const_int 254)))
        !            40:                       (const_int 2)
        !            41:                       (const_int 4))
        !            42:         (eq_attr "type" "return")      (const_int 2)
        !            43:         (eq_attr "type" "fp")          (const_int 10)
        !            44:         (eq_attr "type" "call")        (const_int 4)
        !            45:         (eq_attr "type" "load")
        !            46:           (cond [(match_operand 1 "short_memory_operand" "") (const_int 2)
        !            47:                  (match_operand 1 "symbolic_memory_operand" "") (const_int 8)]
        !            48:                 (const_int 4))
        !            49:          (eq_attr "type" "loadz")
        !            50:           (cond [(match_operand 1 "zero_memory_operand" "") (const_int 2)
        !            51:                  (match_operand 1 "symbolic_memory_operand" "") (const_int 8)]
        !            52:                 (const_string "4"))
        !            53:         (eq_attr "type" "store")
        !            54:           (cond [(match_operand 0 "short_memory_operand" "") (const_int 2)
        !            55:                  (match_operand 0 "symbolic_memory_operand" "") (const_int 8)]
        !            56:                 (const_int 4))]
        !            57:        (const_int 4)))
        !            58: 
        !            59: ;; Whether insn can be placed in a delay slot.
        !            60: 
        !            61: (define_attr "in_delay_slot" "yes,no" 
        !            62:   (cond [(eq_attr "length" "8,10,38")                  (const_string "no")
        !            63:         (eq_attr "type" "branch,return,call,multi")    (const_string "no")]
        !            64:        (const_string "yes")))
        !            65: 
        !            66: ;; Whether insn needs a delay slot.
        !            67: (define_attr "needs_delay_slot" "yes,no"
        !            68:   (if_then_else (eq_attr "type" "branch,return,call")
        !            69:                (const_string "yes") (const_string "no")))
        !            70: 
        !            71: ;; What insn does to the condition code.
        !            72: 
        !            73: (define_attr "cc"
        !            74:   "clobber,none,sets,change0,copy1to0,compare,tbit"
        !            75:   (cond [(eq_attr "type" "load,loadz")         (const_string "change0")
        !            76:         (eq_attr "type" "store")               (const_string "none")
        !            77:         (eq_attr "type" "fp,call")             (const_string "clobber")
        !            78:         (eq_attr "type" "branch,return")       (const_string "none")
        !            79:         (eq_attr "type" "address")             (const_string "change0")
        !            80:         (eq_attr "type" "compare")             (const_string "compare")
        !            81:         (eq_attr "type" "arith")               (const_string "sets")]
        !            82:        (const_string "clobber")))
        !            83: 
        !            84: ;; Define attributes for `asm' insns.
        !            85: 
        !            86: (define_asm_attributes [(set_attr "type" "misc")
        !            87:                        (set_attr "length" "8")
        !            88:                        (set_attr "in_delay_slot" "no")
        !            89:                        (set_attr "cc" "clobber")])
        !            90: 
        !            91: ;; Define the delay slot requirements for branches and calls.  We don't have
        !            92: ;; any annulled insns.
        !            93: ;;
        !            94: (define_delay (eq_attr "needs_delay_slot" "yes")
        !            95:   [(eq_attr "in_delay_slot" "yes") (nil) (nil)])
        !            96: 
        !            97: ;; We cannot give a floating-point comparison a delay slot, even though it
        !            98: ;; could make use of it.  This is because it would confuse next_cc0_user
        !            99: ;; to do so.  Other fp insns can't get a delay slow because they set their
        !           100: ;; result and use their input after the delay slot insn is executed.  This
        !           101: ;; isn't what reorg.c expects.  
        !           102: 
        !           103: ;; Define load & store delays.  These were obtained by measurements done by
        !           104: ;; [email protected].
        !           105: ;;
        !           106: ;; In general, the memory unit can support at most two simultaneous operations.
        !           107: ;;
        !           108: ;; Loads take 5 cycles to return the data and can be pipelined up to the
        !           109: ;; limit of two simultaneous operations.
        !           110: (define_function_unit "memory" 1 2 (eq_attr "type" "load,loadz") 5 0)
        !           111: 
        !           112: ;; Stores do not return data, but tie up the memory unit for 2 cycles if the
        !           113: ;; next insn is also a store.
        !           114: (define_function_unit "memory" 1 2 (eq_attr "type" "store") 1 2
        !           115:   [(eq_attr "type" "store")])
        !           116: 
        !           117: ;; Move word instructions.
        !           118: ;;
        !           119: ;; If destination is memory but source is not register, force source to
        !           120: ;; register.
        !           121: ;;
        !           122: ;; If source is a constant that is too large to load in a single insn, build
        !           123: ;; it in two pieces.
        !           124: ;;
        !           125: ;; If destination is memory and source is a register, a temporary register
        !           126: ;; will be needed.  In that case, make a PARALLEL of the SET and a
        !           127: ;; CLOBBER of a SCRATCH to allocate the required temporary.
        !           128: ;;
        !           129: ;; This temporary is ACTUALLY only needed when the destination is a
        !           130: ;; relocatable expression.  For generating RTL, however, we always
        !           131: ;; place the CLOBBER.  In insns where it is not needed, the SCRATCH will
        !           132: ;; not be allocated to a register.
        !           133: ;;
        !           134: ;; Also, avoid creating pseudo-registers or SCRATCH rtx's during reload as
        !           135: ;; they will not be correctly handled.  We never need pseudos for that
        !           136: ;; case anyway.
        !           137: ;;
        !           138: ;; We do not use DEFINE_SPLIT for loading constants because the number
        !           139: ;; of cases in the resulting unsplit insn would be too high to deal
        !           140: ;; with practically.
        !           141: (define_expand "movsi"
        !           142:   [(set (match_operand:SI 0 "general_operand" "")
        !           143:        (match_operand:SI 1 "general_operand" ""))]
        !           144:   ""
        !           145:   "
        !           146: { rtx op0 = operands[0];
        !           147:   rtx op1 = operands[1];
        !           148: 
        !           149:   if (GET_CODE (op1) == REG && REGNO (op1) == 16)
        !           150:     DONE;
        !           151: 
        !           152:   if (GET_CODE (op0) == REG && REGNO (op0) == 16)
        !           153:     DONE;
        !           154: 
        !           155:   if (GET_CODE (op0) == MEM && ! reload_in_progress)
        !           156:     {
        !           157:       emit_insn (gen_storesi (operands[0], force_reg (SImode, operands[1])));
        !           158:       DONE;
        !           159:     }
        !           160:   else if (GET_CODE (op1) == CONST_INT)
        !           161:     {
        !           162:       int const_val = INTVAL (op1);
        !           163: 
        !           164:       /* Try a number of cases to see how to best load the constant.  */
        !           165:       if ((const_val & 0xffff) == 0
        !           166:          || (const_val & 0xffff0000) == 0
        !           167:          || (unsigned) (const_val + 0x8000) < 0x10000)
        !           168:        /* Can do this in one insn, so generate it.  */
        !           169:        ;
        !           170:       else if (((- const_val) & 0xffff) == 0
        !           171:               || ((- const_val) & 0xffff0000) == 0
        !           172:               || (unsigned) ((- const_val) + 0x8000) < 0x10000)
        !           173:        {
        !           174:          /* Can do this by loading the negative constant and then negating. */
        !           175:          emit_move_insn (operands[0],
        !           176:                          gen_rtx (CONST_INT, VOIDmode, - const_val));
        !           177:          emit_insn (gen_negsi2 (operands[0], operands[0]));
        !           178:          DONE;
        !           179:        }
        !           180:       else
        !           181:        /* Do this the long way.  */
        !           182:        {
        !           183:          unsigned int high_part = const_val & 0xffff0000;
        !           184:          unsigned int low_part = const_val & 0xffff;
        !           185:          int i;
        !           186: 
        !           187:          if (low_part >= 0x10 && exact_log2 (low_part) >= 0)
        !           188:            i = high_part, high_part = low_part, low_part = i;
        !           189: 
        !           190:          emit_move_insn (operands[0],
        !           191:                          gen_rtx (CONST_INT, VOIDmode, low_part));
        !           192:          emit_insn (gen_iorsi3 (operands[0], operands[0],
        !           193:                                 gen_rtx (CONST_INT, VOIDmode, high_part)));
        !           194:          DONE;
        !           195:        }
        !           196:     }
        !           197: }")
        !           198: 
        !           199: ;; Move from a symbolic memory location to a register is special.  In this
        !           200: ;; case, we know in advance that the register cannot be r0, so we can improve
        !           201: ;; register allocation by treating it separately.
        !           202: 
        !           203: (define_insn ""
        !           204:   [(set (match_operand:SI 0 "register_operand" "=b")
        !           205:        (match_operand:SI 1 "symbolic_memory_operand" "m"))]
        !           206:   ""
        !           207:   "load %0,%1"
        !           208:   [(set_attr "type" "load")])
        !           209: 
        !           210: ;; Generic single-word move insn.  We avoid the case where the destination is
        !           211: ;; a symbolic address, as that needs a temporary register.
        !           212: 
        !           213: (define_insn ""
        !           214:   [(set (match_operand:SI 0 "reg_or_nonsymb_mem_operand" "=r,r,r,r,r,r,r,r,b,Q")
        !           215:        (match_operand:SI 1 "romp_operand" "rR,I,K,L,M,S,s,Q,m,r"))]
        !           216:   "register_operand (operands[0], SImode)
        !           217:    || register_operand (operands[1], SImode)"
        !           218:   "@
        !           219:    cas %0,%1,r0
        !           220:    lis %0,%1
        !           221:    cal %0,%1(r0)
        !           222:    cal16 %0,%1(r0)
        !           223:    cau %0,%H1(r0)
        !           224:    ail %0,r14,%C1
        !           225:    get %0,$%1
        !           226:    l%M1 %0,%1
        !           227:    load %0,%1
        !           228:    st%M0 %1,%0"
        !           229:   [(set_attr "type" "address,address,address,address,address,arith,misc,load,load,store")
        !           230:    (set_attr "length" "2,2,4,4,4,4,8,*,*,*")])
        !           231: 
        !           232: (define_insn "storesi"
        !           233:   [(set (match_operand:SI 0 "memory_operand" "=Q,m")
        !           234:        (match_operand:SI 1 "register_operand" "r,r"))
        !           235:    (clobber (match_scratch:SI 2 "=X,&b"))]
        !           236:   ""
        !           237:   "@
        !           238:    st%M0 %1,%0
        !           239:    store %1,%0,%2"
        !           240:   [(set_attr "type" "store")])
        !           241: 
        !           242: ;; This pattern is used by reload when we store into a symbolic address.  It
        !           243: ;; provides the temporary register required.  This pattern is only used
        !           244: ;; when SECONDARY_OUTPUT_RELOAD_CLASS returns something other than
        !           245: ;; NO_REGS, so we need not have any predicates here.
        !           246: 
        !           247: (define_expand "reload_outsi"
        !           248:   [(set (match_operand:SI 0 "symbolic_memory_operand" "=m")
        !           249:        (match_operand:SI 1 "" "r"))
        !           250:    (match_operand:SI 2 "" "=&b")]
        !           251:   ""
        !           252:   "")
        !           253: 
        !           254: ;; Now do the same for the QI move instructions.
        !           255: (define_expand "movqi"
        !           256:   [(set (match_operand:QI 0 "general_operand" "")
        !           257:        (match_operand:QI 1 "general_operand" ""))]
        !           258:   ""
        !           259:   "
        !           260: { rtx op0 = operands[0];
        !           261: 
        !           262:   if (GET_CODE (op0) == MEM && ! reload_in_progress)
        !           263:     {
        !           264:       emit_insn (gen_storeqi (operands[0], force_reg (QImode, operands[1])));
        !           265:       DONE;
        !           266:     }
        !           267: }")
        !           268: 
        !           269: (define_insn ""
        !           270:   [(set (match_operand:QI 0 "register_operand" "=b")
        !           271:        (match_operand:QI 1 "symbolic_memory_operand" "m"))]
        !           272:   "" 
        !           273:   "loadc %0,%1"
        !           274:   [(set_attr "type" "load")])
        !           275: 
        !           276: (define_insn ""
        !           277:   [(set (match_operand:QI 0 "reg_or_nonsymb_mem_operand" "=r,r,r,r,r,b,Q")
        !           278:        (match_operand:QI 1 "romp_operand" "r,I,n,s,Q,m,r"))]
        !           279:   "register_operand (operands[0], QImode)
        !           280:    || register_operand (operands[1], QImode)"
        !           281:   "@
        !           282:    cas %0,%1,r0
        !           283:    lis %0,%1
        !           284:    cal %0,%L1(r0)
        !           285:    get %0,$%1
        !           286:    lc%M1 %0,%1
        !           287:    loadc %0,%1
        !           288:    stc%M0 %1,%0"
        !           289:   [(set_attr "type" "address,address,address,misc,load,load,store")
        !           290:    (set_attr "length" "2,2,4,8,*,*,*")])
        !           291: 
        !           292: (define_insn "storeqi"
        !           293:   [(set (match_operand:QI 0 "memory_operand" "=Q,m")
        !           294:        (match_operand:QI 1 "register_operand" "r,r"))
        !           295:    (clobber (match_scratch:SI 2 "=X,&b"))]
        !           296:   ""
        !           297:   "@
        !           298:    stc%M0 %1,%0
        !           299:    storec %1,%0,%2"
        !           300:   [(set_attr "type" "store")])
        !           301: 
        !           302: (define_expand "reload_outqi"
        !           303:   [(set (match_operand:QI 0 "symbolic_memory_operand" "=m")
        !           304:        (match_operand:QI 1 "" "r"))
        !           305:    (match_operand:SI 2 "" "=&b")]
        !           306:   ""
        !           307:   "")
        !           308: 
        !           309: ;; Finally, the HI instructions.
        !           310: (define_expand "movhi"
        !           311:   [(set (match_operand:HI 0 "general_operand" "")
        !           312:        (match_operand:HI 1 "general_operand" ""))]
        !           313:   ""
        !           314:   "
        !           315: { rtx op0 = operands[0];
        !           316: 
        !           317:   if (GET_CODE (op0) == MEM && ! reload_in_progress)
        !           318:     {
        !           319:       emit_insn (gen_storehi (operands[0], force_reg (HImode, operands[1])));
        !           320:       DONE;
        !           321:     }
        !           322: }")
        !           323: 
        !           324: (define_insn ""
        !           325:   [(set (match_operand:HI 0 "register_operand" "=b")
        !           326:        (match_operand:HI 1 "symbolic_memory_operand" "m"))]
        !           327:   ""
        !           328:   "loadha %0,%1"
        !           329:   [(set_attr "type" "load")])
        !           330: 
        !           331: (define_insn ""
        !           332:   [(set (match_operand:HI 0 "reg_or_nonsymb_mem_operand" "=r,r,r,r,r,b,Q")
        !           333:        (match_operand:HI 1 "romp_operand" "r,I,n,s,Q,m,r"))]
        !           334:   "register_operand (operands[0], HImode)
        !           335:    || register_operand (operands[1], HImode)"
        !           336:   "@
        !           337:    cas %0,%1,r0
        !           338:    lis %0,%1
        !           339:    cal %0,%L1(r0)
        !           340:    get %0,$%1
        !           341:    lh%N1 %0,%1
        !           342:    loadh %0,%1
        !           343:    sth%M0 %1,%0"
        !           344:   [(set_attr "type" "address,address,address,misc,loadz,loadz,store")
        !           345:    (set_attr "length" "2,2,4,8,*,*,*")])
        !           346: 
        !           347: (define_insn "storehi"
        !           348:   [(set (match_operand:HI 0 "memory_operand" "=Q,m")
        !           349:        (match_operand:HI 1 "register_operand" "r,r"))
        !           350:    (clobber (match_scratch:SI 2 "=X,&b"))]
        !           351:   ""
        !           352:   "@
        !           353:    sth%M0 %1,%0
        !           354:    storeh %1,%0,%2"
        !           355:   [(set_attr "type" "store")])
        !           356: 
        !           357: (define_expand "reload_outhi"
        !           358:   [(set (match_operand:HI 0 "symbolic_memory_operand" "=m")
        !           359:        (match_operand:HI 1 "" "r"))
        !           360:    (match_operand:SI 2 "" "=&b")]
        !           361:   ""
        !           362:   "")
        !           363: 
        !           364: ;; For DI move, if we have a constant, break the operation apart into
        !           365: ;; two SImode moves because the optimizer may be able to do a better job
        !           366: ;; with the resulting code.
        !           367: ;;
        !           368: ;; For memory stores, make the required pseudo for a temporary in case we
        !           369: ;; are storing into an absolute address.
        !           370: ;;
        !           371: ;; We need to be careful about the cases where the output is a register that is
        !           372: ;; the second register of the input.
        !           373: 
        !           374: (define_expand "movdi"
        !           375:   [(set (match_operand:DI 0 "general_operand" "")
        !           376:        (match_operand:DI 1 "general_operand" ""))]
        !           377:   ""
        !           378:   "
        !           379: { rtx op0 = operands[0];
        !           380:   rtx op1 = operands[1];
        !           381:  
        !           382:   if (CONSTANT_P (op1))
        !           383:     {
        !           384:       rtx insns;
        !           385: 
        !           386:       start_sequence ();
        !           387:       emit_move_insn (operand_subword (op0, 0, 1, DImode),
        !           388:                      operand_subword (op1, 0, 1, DImode));
        !           389:       emit_move_insn (operand_subword (op0, 1, 1, DImode),
        !           390:                      operand_subword (op1, 1, 1, DImode));
        !           391:       insns = get_insns ();
        !           392:       end_sequence ();
        !           393: 
        !           394:       emit_no_conflict_block (insns, op0, op1, 0, op1);
        !           395:       DONE;
        !           396:     }
        !           397: 
        !           398:   if (GET_CODE (op0) == MEM && ! reload_in_progress)
        !           399:     {
        !           400:       emit_insn (gen_storedi (operands[0], force_reg (DImode, operands[1])));
        !           401:       DONE;
        !           402:     }
        !           403: }")
        !           404: 
        !           405: (define_insn ""
        !           406:  [(set (match_operand:DI 0 "reg_or_nonsymb_mem_operand" "=r,r,r,Q")
        !           407:        (match_operand:DI 1 "reg_or_mem_operand" "r,Q,m,r"))]
        !           408:   "register_operand (operands[0], DImode)
        !           409:    || register_operand (operands[1], DImode)"
        !           410:   "*
        !           411: {
        !           412:   switch (which_alternative)
        !           413:     {
        !           414:     case 0:
        !           415:       if (REGNO (operands[0]) == REGNO (operands[1]) + 1)
        !           416:        return \"cas %O0,%O1,r0\;cas %0,%1,r0\";
        !           417:       else
        !           418:        return \"cas %0,%1,r0\;cas %O0,%O1,r0\";
        !           419:     case 1:
        !           420:       /* Here we must see which word to load first.  We default to the
        !           421:         low-order word unless it occurs in the address.  */
        !           422:       if (refers_to_regno_p (REGNO (operands[0]), REGNO (operands[0]) + 1,
        !           423:                             operands[1], 0))
        !           424:        return \"l%M1 %O0,%O1\;l%M1 %0,%1\";
        !           425:       else
        !           426:        return \"l%M1 %0,%1\;l%M1 %O0,%O1\";
        !           427:     case 2:
        !           428:       return \"get %O0,$%1\;ls %0,0(%O0)\;ls %O0,4(%O0)\";
        !           429:     case 3:
        !           430:       return \"st%M0 %1,%0\;st%M0 %O1,%O0\";
        !           431:     }
        !           432: }"
        !           433:   [(set_attr "type" "multi")
        !           434:    (set_attr "cc" "change0,change0,change0,none")
        !           435:    (set_attr "length" "4,12,8,8")])
        !           436: 
        !           437: (define_insn "storedi"
        !           438:   [(set (match_operand:DI 0 "memory_operand" "=Q,m")
        !           439:        (match_operand:DI 1 "register_operand" "r,r"))
        !           440:    (clobber (match_scratch:SI 2 "=X,&b"))]
        !           441:   ""
        !           442:   "@
        !           443:    st%M0 %1,%0\;st%M0 %O1,%O0
        !           444:    get %2,$%0\;sts %1,0(%2)\;sts %O1,4(%2)"
        !           445:   [(set_attr "type" "multi,multi")
        !           446:    (set_attr "cc" "none,none")
        !           447:    (set_attr "length" "8,12")])
        !           448: 
        !           449: (define_expand "reload_outdi"
        !           450:   [(set (match_operand:DI 0 "symbolic_memory_operand" "=m")
        !           451:        (match_operand:DI 1 "" "r"))
        !           452:    (match_operand:SI 2 "" "=&b")]
        !           453:   ""
        !           454:   "")
        !           455: 
        !           456: ;; Split symbolic memory operands differently.  We first load the address
        !           457: ;; into a register and then do the two loads or stores.  We can only do
        !           458: ;; this if operand_subword won't produce a SUBREG, which is only when
        !           459: ;; operands[0] is a hard register.  Thus, these won't be used during the
        !           460: ;; first insn scheduling pass.
        !           461: (define_split
        !           462:   [(set (match_operand:DI 0 "register_operand" "")
        !           463:        (match_operand:DI 1 "symbolic_memory_operand" ""))]
        !           464:   "GET_CODE (operands[0]) == REG
        !           465:    && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER"
        !           466:   [(set (match_dup 2) (match_dup 3))
        !           467:    (set (match_dup 4) (match_dup 5))
        !           468:    (set (match_dup 6) (match_dup 7))]
        !           469:   "
        !           470: { operands[2] = operand_subword (operands[0], 1, 0, DImode);
        !           471:   operands[3] = XEXP (operands[1], 0);
        !           472:   operands[4] = operand_subword (operands[0], 0, 0, DImode);
        !           473:   operands[5] = gen_rtx (MEM, SImode, operands[2]);
        !           474:   operands[6] = operands[2];
        !           475:   operands[7] = gen_rtx (MEM, SImode,
        !           476:                         gen_rtx (PLUS, SImode, operands[2],
        !           477:                                  gen_rtx (CONST_INT, VOIDmode, 4)));
        !           478: 
        !           479:   if (operands[2] == 0 || operands[4] == 0)
        !           480:     FAIL;
        !           481: }")
        !           482: 
        !           483: (define_split
        !           484:   [(set (match_operand:DI 0 "symbolic_memory_operand" "")
        !           485:        (match_operand:DI 1 "register_operand" ""))
        !           486:    (clobber (match_operand:SI 2 "register_operand" ""))] 
        !           487:   "GET_CODE (operands[0]) == REG
        !           488:    && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER"
        !           489:   [(set (match_dup 2) (match_dup 3))
        !           490:    (set (match_dup 4) (match_dup 5))
        !           491:    (set (match_dup 6) (match_dup 7))]
        !           492:   "
        !           493: { operands[3] = XEXP (operands[0], 0);
        !           494:   operands[4] = gen_rtx (MEM, SImode, operands[2]);
        !           495:   operands[5] = operand_subword (operands[1], 0, 0, DImode);
        !           496:   operands[6] = gen_rtx (MEM, SImode,
        !           497:                         gen_rtx (PLUS, SImode, operands[2],
        !           498:                                  gen_rtx (CONST_INT, VOIDmode, 4)));
        !           499:   operands[7] = operand_subword (operands[1], 1, 0, DImode);
        !           500: 
        !           501:   if (operands[5] == 0 || operands[7] == 0)
        !           502:     FAIL;
        !           503: }")
        !           504: 
        !           505: ;; If the output is a register and the input is memory, we have to be careful
        !           506: ;; and see which word needs to be loaded first.
        !           507: ;;
        !           508: ;; Note that this case doesn't have a CLOBBER.   Therefore, we must either
        !           509: ;; be after reload or operand[0] must not be a MEM.  So we don't need a
        !           510: ;; CLOBBER on the new insns either.
        !           511: ;;
        !           512: ;; Due to a bug in sched.c, we do not want to split this insn if both
        !           513: ;; operands are registers and they overlap unless reload has completed.
        !           514: (define_split
        !           515:   [(set (match_operand:DI 0 "general_operand" "")
        !           516:        (match_operand:DI 1 "general_operand" ""))]
        !           517:   "! symbolic_memory_operand (operands[0], DImode)
        !           518:    && ! symbolic_memory_operand (operands[1], DImode)
        !           519:    && ! (GET_CODE (operands[0]) == REG
        !           520:          && REGNO (operands[0]) >= FIRST_PSEUDO_REGISTER)
        !           521:    && ! (GET_CODE (operands[1]) == REG
        !           522:          && REGNO (operands[1]) >= FIRST_PSEUDO_REGISTER)
        !           523:    && ! (GET_CODE (operands[0]) == REG && GET_CODE (operands[1]) == REG
        !           524:         && ! reload_completed
        !           525:         && reg_overlap_mentioned_p (operands[0], operands[1]))"
        !           526:   [(set (match_dup 2) (match_dup 3))
        !           527:    (set (match_dup 4) (match_dup 5))]
        !           528:   "
        !           529: { if (GET_CODE (operands[0]) != REG
        !           530:       || ! refers_to_regno_p (REGNO (operands[0]), REGNO (operands[0]) + 1,
        !           531:                              operands[1], 0))
        !           532:     {
        !           533:       operands[2] = operand_subword (operands[0], 0, 0, DImode);
        !           534:       operands[3] = operand_subword (operands[1], 0, 0, DImode);
        !           535:       operands[4] = operand_subword (operands[0], 1, 0, DImode);
        !           536:       operands[5] = operand_subword (operands[1], 1, 0, DImode);
        !           537:     }
        !           538:   else
        !           539:     {
        !           540:       operands[2] = operand_subword (operands[0], 1, 0, DImode);
        !           541:       operands[3] = operand_subword (operands[1], 1, 0, DImode);
        !           542:       operands[4] = operand_subword (operands[0], 0, 0, DImode);
        !           543:       operands[5] = operand_subword (operands[1], 0, 0, DImode);
        !           544:     }
        !           545: 
        !           546:   if (operands[2] == 0 || operands[3] == 0
        !           547:       || operands[4] == 0 || operands[5] == 0)
        !           548:     FAIL;
        !           549: }")
        !           550: 
        !           551: (define_split
        !           552:  [(set (match_operand:DI 0 "general_operand" "")
        !           553:        (match_operand:DI 1 "general_operand" ""))
        !           554:   (clobber (match_operand:SI 6 "register_operand" ""))]
        !           555:   "! symbolic_memory_operand (operands[0], DImode)
        !           556:    && ! symbolic_memory_operand (operands[1], DImode)
        !           557:    && ! (GET_CODE (operands[0]) == REG
        !           558:          && REGNO (operands[0]) >= FIRST_PSEUDO_REGISTER)
        !           559:    && ! (GET_CODE (operands[1]) == REG
        !           560:          && REGNO (operands[1]) >= FIRST_PSEUDO_REGISTER)"
        !           561:  [(parallel [(set (match_dup 2) (match_dup 3))
        !           562:             (clobber (match_dup 7))])
        !           563:   (parallel [(set (match_dup 4) (match_dup 5))
        !           564:             (clobber (match_dup 8))])]
        !           565:  "
        !           566: { if (GET_CODE (operands[0]) != REG
        !           567:       || ! refers_to_regno_p (REGNO (operands[0]), REGNO (operands[0]) + 1,
        !           568:                              operands[1], 0))
        !           569:     {
        !           570:       operands[2] = operand_subword (operands[0], 0, 0, DImode);
        !           571:       operands[3] = operand_subword (operands[1], 0, 0, DImode);
        !           572:       operands[4] = operand_subword (operands[0], 1, 0, DImode);
        !           573:       operands[5] = operand_subword (operands[1], 1, 0, DImode);
        !           574:     }
        !           575:   else
        !           576:     {
        !           577:       operands[2] = operand_subword (operands[0], 1, 0, DImode);
        !           578:       operands[3] = operand_subword (operands[1], 1, 0, DImode);
        !           579:       operands[4] = operand_subword (operands[0], 0, 0, DImode);
        !           580:       operands[5] = operand_subword (operands[1], 0, 0, DImode);
        !           581:     }
        !           582: 
        !           583:   if (operands[2] == 0 || operands[3] == 0
        !           584:       || operands[4] == 0 || operands[5] == 0)
        !           585:     FAIL;
        !           586: 
        !           587:   /* We must be sure to make two different SCRATCH operands, since they
        !           588:      are not allowed to be shared.  After reload, however, we only have
        !           589:      a SCRATCH if we won't use the operand, so it is allowed to share it
        !           590:      then.  */
        !           591:   if (reload_completed || GET_CODE (operands[6]) != SCRATCH)
        !           592:     operands[7] = operands[8] = operands[6];
        !           593:   else
        !           594:     {
        !           595:       operands[7] = gen_rtx (SCRATCH, SImode);
        !           596:       operands[8] = gen_rtx (SCRATCH, SImode);
        !           597:     }
        !           598: }")
        !           599: 
        !           600: ;; Define move insns for SF, and DF.
        !           601: ;;
        !           602: ;; For register-register copies or a copy of something to itself, emit a
        !           603: ;; single SET insn since it will likely be optimized away.
        !           604: ;;
        !           605: ;; Otherwise, emit a floating-point move operation unless both input and
        !           606: ;; output are either constant, memory, or a non-floating-point hard register.
        !           607: (define_expand "movdf"
        !           608:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !           609:                   (match_operand:DF 1 "general_operand" ""))
        !           610:              (clobber (reg:SI 0))
        !           611:              (clobber (reg:SI 15))])]
        !           612:   ""
        !           613:   "
        !           614: { rtx op0 = operands[0];
        !           615:   rtx op1 = operands[1];
        !           616: 
        !           617:   if (op0 == op1)
        !           618:     {
        !           619:       emit_insn (gen_rtx (SET, VOIDmode, op0, op1));
        !           620:       DONE;
        !           621:     }
        !           622: 
        !           623:   if ((GET_CODE (op0) == MEM
        !           624:        || (GET_CODE (op0) == REG && REGNO (op0) < FIRST_PSEUDO_REGISTER
        !           625:           && ! FP_REGNO_P (REGNO (op0))))
        !           626:       && (GET_CODE (op1) == MEM
        !           627:          || GET_CODE (op1) == CONST_DOUBLE
        !           628:          || (GET_CODE (op1) == REG && REGNO (op1) < FIRST_PSEUDO_REGISTER
        !           629:              && ! FP_REGNO_P (REGNO (op1)) && ! rtx_equal_p (op0, op1))))
        !           630:     {
        !           631:       rtx insns;
        !           632: 
        !           633:       if (GET_CODE (op1) == CONST_DOUBLE)
        !           634:        op1 = force_const_mem (DFmode, op1);
        !           635: 
        !           636:       start_sequence ();
        !           637:       if (GET_CODE (operands[0]) != REG
        !           638:          || ! refers_to_regno_p (REGNO (operands[0]), REGNO (operands[0]) + 1,
        !           639:                                  operands[1]), 0)
        !           640:        {
        !           641:          emit_move_insn (operand_subword (op0, 0, 1, DFmode),
        !           642:                          operand_subword_force (op1, 0, DFmode));
        !           643:          emit_move_insn (operand_subword (op0, 1, 1, DFmode),
        !           644:                          operand_subword_force (op1, 1, DFmode));
        !           645:        }
        !           646:       else
        !           647:        {
        !           648:          emit_move_insn (operand_subword (op0, 1, 1, DFmode),
        !           649:                          operand_subword_force (op1, 1, DFmode));
        !           650:          emit_move_insn (operand_subword (op0, 0, 1, DFmode),
        !           651:                          operand_subword_force (op1, 0, DFmode));
        !           652:        }
        !           653: 
        !           654:       insns = get_insns ();
        !           655:       end_sequence ();
        !           656: 
        !           657:       emit_no_conflict_block (insns, op0, op1, 0, op1);
        !           658:       DONE;
        !           659:     }
        !           660: }")
        !           661: 
        !           662: (define_expand "movsf"
        !           663:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !           664:                   (match_operand:SF 1 "general_operand" ""))
        !           665:              (clobber (reg:SI 0))
        !           666:              (clobber (reg:SI 15))])]
        !           667:   ""
        !           668:   "
        !           669: { rtx op0 = operands[0];
        !           670:   rtx op1 = operands[1];
        !           671:   
        !           672:   if (op0 == op1)
        !           673:     {
        !           674:       emit_insn (gen_rtx (SET, VOIDmode, op0, op1));
        !           675:       DONE;
        !           676:     }
        !           677: 
        !           678:   if ((GET_CODE (op0) == MEM
        !           679:        || (GET_CODE (op0) == REG && REGNO (op0) < FIRST_PSEUDO_REGISTER
        !           680:           && ! FP_REGNO_P (REGNO (op0))))
        !           681:        && (GET_CODE (op1) == MEM
        !           682:           || GET_CODE (op1) == CONST_DOUBLE
        !           683:           || (GET_CODE (op1) == REG && REGNO (op1) < FIRST_PSEUDO_REGISTER
        !           684:               && ! FP_REGNO_P (REGNO (op1)))))
        !           685:     {
        !           686:       rtx last;
        !           687: 
        !           688:       if (GET_CODE (op1) == CONST_DOUBLE)
        !           689:        op1 = force_const_mem (SFmode, op1);
        !           690: 
        !           691:       last = emit_move_insn (operand_subword (op0, 0, 1, SFmode),
        !           692:                             operand_subword_force (op1, 0, SFmode));
        !           693: 
        !           694:       REG_NOTES (last) = gen_rtx (EXPR_LIST, REG_EQUAL, op1, REG_NOTES (last));
        !           695:       DONE;
        !           696:     }
        !           697: }")
        !           698: 
        !           699: ;; Define the move insns for SF and DF.  Check for all general regs
        !           700: ;; in the FP insns and make them non-FP if so.  Do the same if the input and
        !           701: ;; output are the same (the insn will be deleted in this case and we don't
        !           702: ;; want to think there are FP insns when there might not be).
        !           703: (define_insn ""
        !           704:   [(set (match_operand:SF 0 "general_operand" "=*frg")
        !           705:        (match_dup 0))]
        !           706:   ""
        !           707:   "nopr r0"
        !           708:   [(set_attr "type" "address")
        !           709:    (set_attr "length" "2")])
        !           710: 
        !           711: (define_insn ""
        !           712:   [(set (match_operand:SF 0 "general_operand" "=r,*fr,r,r,Q,m,frg")
        !           713:        (match_operand:SF 1 "general_operand" "r,0,Q,m,r,r,frg"))
        !           714:    (clobber (match_operand:SI 2 "reg_0_operand" "=&z,z,z,z,z,z,z"))
        !           715:    (clobber (match_operand:SI 3 "reg_15_operand" "=&t,t,t,t,t,t,t"))]
        !           716:   ""
        !           717:   "*
        !           718: { switch (which_alternative)
        !           719:     {
        !           720:     case 0:
        !           721:       return \"cas %0,%1,r0\";
        !           722:     case 1:
        !           723:       return \"nopr r0\";
        !           724:     case 2:
        !           725:       return \"l%M1 %0,%1\";
        !           726:     case 3:
        !           727:       return \"load %0,%1\";
        !           728:     case 4:
        !           729:       return \"st%M0 %1,%0\";
        !           730:     case 5:
        !           731:       return \"store %1,%0,%3\";
        !           732:     default:
        !           733:       return output_fpop (SET, operands[0], operands[1], 0, insn);
        !           734:     }
        !           735: }"
        !           736:   [(set_attr "type" "address,address,load,load,store,store,fp")
        !           737:    (set_attr "length" "2,2,*,*,*,*,*")])
        !           738: 
        !           739: (define_insn ""
        !           740:   [(set (match_operand:DF 0 "general_operand" "=*frg")
        !           741:        (match_dup 0))]
        !           742:   ""
        !           743:   "nopr r0"
        !           744:   [(set_attr "type" "address")
        !           745:    (set_attr "length" "2")])
        !           746: 
        !           747: (define_insn ""
        !           748:   [(set (match_operand:DF 0 "general_operand" "=r,*fr,r,r,Q,m,frg")
        !           749:        (match_operand:DF 1 "general_operand" "r,0,Q,m,r,r,*frg"))
        !           750:    (clobber (match_operand:SI 2 "reg_0_operand" "=&z,z,z,z,z,z,z"))
        !           751:    (clobber (match_operand:SI 3 "reg_15_operand" "=&t,t,t,t,t,t,t"))]
        !           752:   ""
        !           753:   "*
        !           754: { switch (which_alternative)
        !           755:     {
        !           756:     case 0:
        !           757:       if (REGNO (operands[0]) == REGNO (operands[1]) + 1)
        !           758:        return \"cas %O0,%O1,r0\;cas %0,%1,r0\";
        !           759:       else
        !           760:        return \"cas %0,%1,r0\;cas %O0,%O1,r0\";
        !           761:     case 1:
        !           762:       return \"nopr r0\";
        !           763:     case 2:
        !           764:       /* Here we must see which word to load first.  We default to the
        !           765:         low-order word unless it occurs in the address.  */
        !           766:       if (refers_to_regno_p (REGNO (operands[0]), REGNO (operands[0]) + 1,
        !           767:                             operands[1], 0))
        !           768:        return \"l%M1 %O0,%O1\;l%M1 %0,%1\";
        !           769:       else
        !           770:        return \"l%M1 %0,%1\;l%M1 %O0,%O1\";
        !           771:     case 3:
        !           772:       return \"get %3,$%1\;ls %0,0(%3)\;ls %O0,4(%3)\";
        !           773:     case 4:
        !           774:       return \"st%M0 %1,%0\;st%M0 %O1,%O0\";
        !           775:     case 5:
        !           776:       return \"get %3,$%0\;sts %1,0(%3)\;sts %O1,4(%3)\";
        !           777:     default:
        !           778:       return output_fpop (SET, operands[0], operands[1], 0, insn);
        !           779:     }
        !           780: }"
        !           781:   [(set_attr "type" "address,multi,multi,multi,multi,multi,fp")
        !           782:    (set_attr "length" "2,4,*,*,*,*,*")])
        !           783: 
        !           784: ;; Split all the above cases that involve multiple insns and no floating-point
        !           785: ;; data block.  If before reload, we can make a SCRATCH.  Otherwise, use
        !           786: ;; register 15.
        !           787: 
        !           788: (define_split
        !           789:   [(set (match_operand:DF 0 "register_operand" "")
        !           790:        (match_operand:DF 1 "symbolic_memory_operand" ""))
        !           791:    (clobber (reg:SI 0))
        !           792:    (clobber (reg:SI 15))]
        !           793:   "GET_CODE (operands[0]) == REG && REGNO (operands[0]) < 16"
        !           794:   [(set (reg:SI 15) (match_dup 2))
        !           795:    (set (match_dup 3) (match_dup 4))
        !           796:    (set (match_dup 5) (match_dup 6))]
        !           797:   "
        !           798: { operands[2] = XEXP (operands[1], 0);
        !           799:   operands[3] = operand_subword (operands[0], 0, 0, DFmode);
        !           800:   operands[4] = gen_rtx (MEM, SImode, gen_rtx (REG, SImode, 15));
        !           801:   operands[5] = operand_subword (operands[0], 0, 1, DFmode);
        !           802:   operands[6] = gen_rtx (MEM, SImode,
        !           803:                         gen_rtx (PLUS, SImode, gen_rtx (REG, SImode, 15),
        !           804:                                  gen_rtx (CONST_INT, VOIDmode, 4)));
        !           805: 
        !           806:   if (operands[3] == 0 || operands[5] == 0)
        !           807:     FAIL;
        !           808: }")
        !           809: 
        !           810: (define_split
        !           811:   [(set (match_operand:DF 0 "symbolic_memory_operand" "")
        !           812:        (match_operand:DF 1 "register_operand" ""))
        !           813:    (clobber (reg:SI 0))
        !           814:    (clobber (reg:SI 15))]
        !           815:   "GET_CODE (operands[1]) == REG && REGNO (operands[1]) < 16"
        !           816:   [(set (reg:SI 15) (match_dup 2))
        !           817:    (set (match_dup 3) (match_dup 4))
        !           818:    (set (match_dup 5) (match_dup 6))]
        !           819:   "
        !           820: { operands[2] = XEXP (operands[0], 0);
        !           821:   operands[3] = gen_rtx (MEM, SImode, gen_rtx (REG, SImode, 15));
        !           822:   operands[4] = operand_subword (operands[1], 0, 0, DFmode);
        !           823:   operands[5] = gen_rtx (MEM, SImode,
        !           824:                         gen_rtx (PLUS, SImode, gen_rtx (REG, SImode, 15),
        !           825:                                  gen_rtx (CONST_INT, VOIDmode, 4)));
        !           826:   operands[6] = operand_subword (operands[1], 1, 0, DFmode);
        !           827: 
        !           828:   if (operands[4] == 0 || operands[6] == 0)
        !           829:     FAIL;
        !           830: }")
        !           831: 
        !           832: ;; If the output is a register and the input is memory, we have to be careful
        !           833: ;; and see which word needs to be loaded first.  We also cannot to the
        !           834: ;; split if the input is a constant because it would result in invalid
        !           835: ;; insns.  When the output is a MEM, we must put a CLOBBER on each of the
        !           836: ;; resulting insn, when it is not a MEM, we must not.
        !           837: (define_split
        !           838:   [(set (match_operand:DF 0 "memory_operand" "")
        !           839:        (match_operand:DF 1 "register_operand" ""))
        !           840:    (clobber (reg:SI 0))
        !           841:    (clobber (reg:SI 15))]
        !           842:   "GET_CODE (operands[1]) == REG && REGNO (operands[1]) < 15"
        !           843:   [(parallel [(set (match_dup 2) (match_dup 3))
        !           844:              (clobber (match_dup 6))])
        !           845:    (parallel [(set (match_dup 4) (match_dup 5))
        !           846:              (clobber (match_dup 7))])]
        !           847:   "
        !           848: { operands[2] = operand_subword (operands[0], 0, 0, DFmode);
        !           849:   operands[3] = operand_subword (operands[1], 0, 0, DFmode);
        !           850:   operands[4] = operand_subword (operands[0], 1, 0, DFmode);
        !           851:   operands[5] = operand_subword (operands[1], 1, 0, DFmode);
        !           852: 
        !           853:   if (operands[2] == 0 || operands[3] == 0
        !           854:       || operands[4] == 0 || operands[5] == 0)
        !           855:     FAIL;
        !           856: 
        !           857:   if (reload_completed)
        !           858:     operands[6] = operands[7] = gen_rtx (REG, SImode, 15);
        !           859:   else
        !           860:     {
        !           861:       operands[6] = gen_rtx (SCRATCH, SImode);
        !           862:       operands[7] = gen_rtx (SCRATCH, SImode);
        !           863:     }
        !           864: }")
        !           865: 
        !           866: (define_split
        !           867:   [(set (match_operand:DF 0 "nonmemory_operand" "")
        !           868:        (match_operand:DF 1 "general_operand" ""))
        !           869:    (clobber (reg:SI 0))
        !           870:    (clobber (reg:SI 15))]
        !           871:   "! symbolic_memory_operand (operands[1], DFmode)
        !           872:    && GET_CODE (operands[1]) != CONST_DOUBLE
        !           873:    && (GET_CODE (operands[0]) != REG || REGNO (operands[0]) < 15)
        !           874:    && (GET_CODE (operands[1]) != REG || REGNO (operands[1]) < 15)
        !           875:    && (GET_CODE (operands[0]) == REG || GET_CODE (operands[1]) == REG)"
        !           876:   [(set (match_dup 2) (match_dup 3))
        !           877:    (set (match_dup 4) (match_dup 5))]
        !           878:   "
        !           879: { if (GET_CODE (operands[0]) != REG
        !           880:       || ! refers_to_regno_p (REGNO (operands[0]), REGNO (operands[0]) + 1,
        !           881:                              operands[1], 0))
        !           882:     {
        !           883:       operands[2] = operand_subword (operands[0], 0, 0, DFmode);
        !           884:       operands[3] = operand_subword (operands[1], 0, 0, DFmode);
        !           885:       operands[4] = operand_subword (operands[0], 1, 0, DFmode);
        !           886:       operands[5] = operand_subword (operands[1], 1, 0, DFmode);
        !           887:     }
        !           888:   else
        !           889:     {
        !           890:       operands[2] = operand_subword (operands[0], 1, 0, DFmode);
        !           891:       operands[3] = operand_subword (operands[1], 1, 0, DFmode);
        !           892:       operands[4] = operand_subword (operands[0], 0, 0, DFmode);
        !           893:       operands[5] = operand_subword (operands[1], 0, 0, DFmode);
        !           894:     }
        !           895: 
        !           896:   if (operands[2] == 0 || operands[3] == 0
        !           897:       || operands[4] == 0 || operands[5] == 0)
        !           898:     FAIL;
        !           899: }")
        !           900: 
        !           901: ;; Conversions from one integer mode to another.
        !           902: ;; It is possible sometimes to sign- or zero-extend while fetching from memory.
        !           903: ;;
        !           904: ;; First, sign-extensions:
        !           905: (define_expand "extendhisi2"
        !           906:   [(set (match_operand:SI 0 "register_operand" "")
        !           907:        (sign_extend:SI (match_operand:HI 1 "register_operand" "")))]
        !           908:   ""
        !           909:   "")
        !           910: 
        !           911: (define_insn ""
        !           912:   [(set (match_operand:SI 0 "register_operand" "=b")
        !           913:        (sign_extend:SI (match_operand:HI 1 "symbolic_memory_operand" "m")))]
        !           914:   ""
        !           915:   "loadha %0,%1"
        !           916:   [(set_attr "type" "load")])
        !           917: 
        !           918: (define_insn ""
        !           919:   [(set (match_operand:SI 0 "register_operand" "=r,r,b")
        !           920:        (sign_extend:SI (match_operand:HI 1 "nonimmediate_operand" "r,Q,m")))]
        !           921:   ""
        !           922:   "@
        !           923:    exts %0,%1
        !           924:    lha%M1 %0,%1
        !           925:    loadha %0,%1"
        !           926:   [(set_attr "type" "arith,load,load")
        !           927:    (set_attr "length" "2,*,*")])
        !           928: 
        !           929: (define_expand "extendqisi2"
        !           930:   [(set (match_dup 2)
        !           931:        (ashift:SI (match_operand:QI 1 "register_operand" "")
        !           932:                   (const_int 24)))
        !           933:    (set (match_operand:SI 0 "register_operand" "")
        !           934:        (ashiftrt:SI (match_dup 2)
        !           935:                     (const_int 24)))]
        !           936:   ""
        !           937:   "
        !           938: { operands[1] = gen_lowpart (SImode, operands[1]);
        !           939:   operands[2] = gen_reg_rtx (SImode); }")
        !           940: 
        !           941: (define_expand "extendqihi2"
        !           942:   [(set (match_dup 2)
        !           943:        (ashift:SI (match_operand:QI 1 "register_operand" "")
        !           944:                   (const_int 24)))
        !           945:    (set (match_operand:HI 0 "register_operand" "")
        !           946:        (ashiftrt:SI (match_dup 2)
        !           947:                     (const_int 24)))]
        !           948:   ""
        !           949:   "
        !           950: { operands[0] = gen_lowpart (SImode, operands[0]);
        !           951:   operands[1] = gen_lowpart (SImode, operands[1]);
        !           952:   operands[2] = gen_reg_rtx (SImode); }")
        !           953: 
        !           954: ;; Define peepholes to eliminate an instruction when we are doing a sign
        !           955: ;; extension but cannot clobber the input.
        !           956: ;;
        !           957: ;; In this case we will shift left 24 bits, but need a copy first.  The shift
        !           958: ;; can be replaced by a "mc03" instruction, but this can only be done if
        !           959: ;; followed by the right shift of 24 or more bits.
        !           960: (define_peephole
        !           961:   [(set (match_operand:SI 0 "register_operand" "")
        !           962:        (subreg:SI (match_operand:QI 1 "register_operand" "") 0))
        !           963:    (set (match_dup 0)
        !           964:        (ashift:SI (match_dup 0)
        !           965:                   (const_int 24)))
        !           966:    (set (match_dup 0)
        !           967:        (ashiftrt:SI (match_dup 0)
        !           968:                     (match_operand:SI 2 "const_int_operand" "")))]
        !           969:   "INTVAL (operands[2]) >= 24"
        !           970:   "mc03 %0,%1\;sari16 %0,%S2"
        !           971:  [(set_attr "type" "multi")
        !           972:   (set_attr "length" "4")
        !           973:   (set_attr "cc" "sets")])
        !           974: 
        !           975: ;; Now zero extensions:
        !           976: (define_expand "zero_extendhisi2"
        !           977:   [(set (match_operand:SI 0 "register_operand" "b")
        !           978:        (zero_extend:SI (match_operand:HI 1 "register_operand" "")))]
        !           979:   ""
        !           980:   "")
        !           981: 
        !           982: (define_insn ""
        !           983:   [(set (match_operand:SI 0 "register_operand" "=b")
        !           984:        (zero_extend:SI (match_operand:HI 1 "symbolic_memory_operand" "m")))]
        !           985:   ""
        !           986:   "loadh %0,%1"
        !           987:   [(set_attr "type" "load")])
        !           988: 
        !           989: (define_insn ""
        !           990:   [(set (match_operand:SI 0 "register_operand" "=r,r,b")
        !           991:        (zero_extend:SI (match_operand:HI 1 "nonimmediate_operand" "r,Q,m")))]
        !           992:   ""
        !           993:   "@
        !           994:    nilz %0,%1,65535
        !           995:    lh%N1 %0,%1
        !           996:    loadh %0,%1"
        !           997:   [(set_attr "type" "arith,loadz,load")])
        !           998: 
        !           999: (define_expand "zero_extendqisi2"
        !          1000:   [(set (match_operand:SI 0 "register_operand" "")
        !          1001:        (zero_extend:SI (match_operand:QI 1 "register_operand" "")))]
        !          1002:   ""
        !          1003:   "")
        !          1004: 
        !          1005: (define_insn ""
        !          1006:   [(set (match_operand:SI 0 "register_operand" "=b")
        !          1007:        (zero_extend:SI (match_operand:QI 1 "symbolic_memory_operand" "m")))]
        !          1008:   ""
        !          1009:   "loadc %0,%1"
        !          1010:   [(set_attr "type" "load")])
        !          1011: 
        !          1012: (define_insn ""
        !          1013:   [(set (match_operand:SI 0 "register_operand" "=r,r,b")
        !          1014:        (zero_extend:SI (match_operand:QI 1 "nonimmediate_operand" "r,Q,m")))]
        !          1015:   ""
        !          1016:   "@
        !          1017:    nilz %0,%1,255
        !          1018:    lc%M1 %0,%1
        !          1019:    loadc %0,%1"
        !          1020:   [(set_attr "type" "arith,load,load")])
        !          1021: 
        !          1022: (define_expand "zero_extendqihi2"
        !          1023:   [(set (match_operand:HI 0 "register_operand" "")
        !          1024:        (zero_extend:HI (match_operand:QI 1 "register_operand" "")))]
        !          1025:   ""
        !          1026:   "")
        !          1027: 
        !          1028: (define_insn ""
        !          1029:   [(set (match_operand:HI 0 "register_operand" "=b")
        !          1030:        (zero_extend:HI (match_operand:QI 1 "symbolic_memory_operand" "m")))]
        !          1031:   ""
        !          1032:   "loadc %0,%1"
        !          1033:   [(set_attr "type" "load")])
        !          1034: 
        !          1035: (define_insn ""
        !          1036:   [(set (match_operand:HI 0 "register_operand" "=r,r,b")
        !          1037:        (zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "r,Q,m")))]
        !          1038:   ""
        !          1039:   "@
        !          1040:    nilz %0,%1,255
        !          1041:    lc%M1 %0,%1
        !          1042:    loadc %0,%1"
        !          1043:   [(set_attr "type" "arith,load,load")])
        !          1044: 
        !          1045: ;; Various extract and insertion operations.
        !          1046: (define_expand "extzv"
        !          1047:   [(set (match_operand:SI 0 "register_operand" "")
        !          1048:        (zero_extract:SI (match_operand:SI 1 "register_operand" "")
        !          1049:                         (match_operand:SI 2 "const_int_operand" "")
        !          1050:                         (match_operand:SI 3 "const_int_operand" "")))]
        !          1051:   ""
        !          1052:   "
        !          1053: {
        !          1054:   if (GET_CODE (operands[2]) != CONST_INT || INTVAL (operands[2]) != 8)
        !          1055:     FAIL;
        !          1056: 
        !          1057:   if (GET_CODE (operands[3]) != CONST_INT)
        !          1058:     FAIL;
        !          1059: 
        !          1060:   if (INTVAL (operands[3]) != 0 && INTVAL (operands[3]) != 8
        !          1061:       && INTVAL (operands[3]) != 16 && INTVAL (operands[3]) != 24)
        !          1062:     FAIL;
        !          1063: }")
        !          1064: 
        !          1065: (define_insn ""
        !          1066:   [(set (match_operand:SI 0 "register_operand" "=&r")
        !          1067:        (zero_extract:SI (match_operand:SI 1 "register_operand" "r")
        !          1068:                         (const_int 8)
        !          1069:                         (match_operand:SI 2 "const_int_operand" "n")))]
        !          1070:   "(INTVAL (operands[2]) & 7) == 0"
        !          1071:   "lis %0,0\;mc3%B2 %0,%1"
        !          1072:   [(set_attr "type" "multi")
        !          1073:    (set_attr "cc" "change0")])
        !          1074: 
        !          1075: (define_split
        !          1076:   [(set (match_operand:SI 0 "register_operand" "=&r")
        !          1077:        (zero_extract:SI (match_operand:SI 1 "register_operand" "r")
        !          1078:                         (const_int 8)
        !          1079:                         (match_operand:SI 2 "const_int_operand" "n")))]
        !          1080:   "(INTVAL (operands[2]) & 7) == 0"
        !          1081:   [(set (match_dup 0) (const_int 0))
        !          1082:    (set (zero_extract:SI (match_dup 0) (const_int 8) (const_int 24))
        !          1083:        (zero_extract:SI (match_dup 1) (const_int 8) (match_dup 2)))]
        !          1084:   "")
        !          1085: 
        !          1086: (define_insn ""
        !          1087:   [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "+r")
        !          1088:                         (const_int 8)
        !          1089:                         (const_int 24))
        !          1090:        (zero_extract:SI (match_operand:SI 1 "register_operand" "r")
        !          1091:                         (const_int 8)
        !          1092:                         (match_operand:SI 2 "const_int_operand" "n")))]
        !          1093:   "(INTVAL (operands[2]) & 7) == 0"
        !          1094:   "mc3%B2 %0,%1"
        !          1095:   [(set_attr "type" "address")
        !          1096:    (set_attr "length" "2")])
        !          1097: 
        !          1098: (define_expand "insv"
        !          1099:   [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "")
        !          1100:                         (match_operand:SI 1 "const_int_operand" "")
        !          1101:                         (match_operand:SI 2 "const_int_operand" ""))
        !          1102:        (match_operand:SI 3 "register_operand" ""))]
        !          1103:   ""
        !          1104:   "
        !          1105: {
        !          1106:   if (GET_CODE (operands[2]) != CONST_INT)
        !          1107:     FAIL;
        !          1108: 
        !          1109:   if (GET_CODE (operands[1]) != CONST_INT)
        !          1110:     FAIL;
        !          1111: 
        !          1112:   if (INTVAL (operands[1]) == 1)
        !          1113:     {
        !          1114:       emit_insn (gen_bit_insv (operands[0], operands[1], operands[2],
        !          1115:                               operands[3]));
        !          1116:       DONE;
        !          1117:     }
        !          1118:   else if (INTVAL (operands[1]) == 8
        !          1119:           && (INTVAL (operands[2]) % 8 == 0))
        !          1120:     ;                          /* Accept aligned byte-wide field. */
        !          1121:   else
        !          1122:     FAIL;
        !          1123: }")
        !          1124: 
        !          1125: ;; For a single-bit insert, it is better to explicitly generate references
        !          1126: ;; to the T bit.  We will call the T bit "CC0" because it can be clobbered
        !          1127: ;; by some CC0 sets (single-bit tests).
        !          1128: 
        !          1129: (define_expand "bit_insv"
        !          1130:   [(set (cc0)
        !          1131:        (zero_extract:SI (match_operand:SI 3 "register_operand" "")
        !          1132:                         (const_int 1)
        !          1133:                         (const_int 31)))
        !          1134:    (parallel [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "")
        !          1135:                                    (match_operand:SI 1 "const_int_operand" "")
        !          1136:                                    (match_operand:SI 2 "const_int_operand" ""))
        !          1137:                   (ne (cc0) (const_int 0)))
        !          1138:              (clobber (match_scratch:SI 4 ""))])]
        !          1139:   ""
        !          1140:   "")
        !          1141:        
        !          1142: (define_insn ""
        !          1143:   [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "+r")
        !          1144:                         (const_int 8)
        !          1145:                         (match_operand:SI 1 "const_int_operand" "n"))
        !          1146:        (match_operand:SI 2 "register_operand" "r"))]
        !          1147:   "(INTVAL (operands[1]) & 7) == 0"
        !          1148:   "mc%B1%.3 %0,%2"
        !          1149:   [(set_attr "type" "address")
        !          1150:    (set_attr "length" "2")])
        !          1151: 
        !          1152: ;; This pattern cannot have any input reloads since if references CC0.
        !          1153: ;; So we have to add code to support memory, which is the only other
        !          1154: ;; thing that a "register_operand" can become.  There is still a problem
        !          1155: ;; if the address isn't valid and *it* needs a reload, but there is no
        !          1156: ;; way to solve that problem, so let's hope it never happens.
        !          1157: 
        !          1158: (define_insn ""
        !          1159:   [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "+r,m")
        !          1160:                         (const_int 1)
        !          1161:                         (match_operand:SI 1 "const_int_operand" "n,m"))
        !          1162:        (ne (cc0) (const_int 0)))
        !          1163:    (clobber (match_scratch:SI 2 "=X,b"))]
        !          1164:   ""
        !          1165:   "@
        !          1166:    mftbi%t1 %0,%S1
        !          1167:    l%M0 %2,%0\;mftb%t1 %2,%S1\;st%M0 %2,%0"
        !          1168:   [(set_attr "type" "*,multi")
        !          1169:    (set_attr "cc" "none,none")
        !          1170:    (set_attr "length" "2,10")])
        !          1171: 
        !          1172: ;; Arithmetic instructions.  First, add and subtract.
        !          1173: ;;
        !          1174: ;; It may be that the second input is either large or small enough that
        !          1175: ;; the operation cannot be done in a single insn.  In that case, emit two.
        !          1176: (define_expand "addsi3"
        !          1177:   [(set (match_operand:SI 0 "register_operand" "")
        !          1178:        (plus:SI (match_operand:SI 1 "register_operand" "")
        !          1179:                 (match_operand:SI 2 "nonmemory_operand" "")))]
        !          1180:   ""
        !          1181:   "
        !          1182: {
        !          1183:   if (GET_CODE (operands[2]) == CONST_INT
        !          1184:       && (unsigned) (INTVAL (operands[2]) + 0x8000) >= 0x10000
        !          1185:       && (INTVAL (operands[2]) & 0xffff) != 0)
        !          1186:     {
        !          1187:       int low = INTVAL (operands[2]) & 0xffff;
        !          1188:       int high = (unsigned) INTVAL (operands[2]) >> 16;
        !          1189: 
        !          1190:       if (low & 0x8000)
        !          1191:        high++, low |= 0xffff0000;
        !          1192: 
        !          1193:       emit_insn (gen_addsi3 (operands[0], operands[1],
        !          1194:                             gen_rtx (CONST_INT, VOIDmode, high << 16)));
        !          1195:       operands[1] = operands[0];
        !          1196:       operands[2] = gen_rtx (CONST_INT, VOIDmode, low);
        !          1197:     }
        !          1198: }")
        !          1199: 
        !          1200: ;; Put the insn to add a symbolic constant to a register separately to
        !          1201: ;; improve register allocation since it has different register requirements.
        !          1202: (define_insn ""
        !          1203:   [(set (match_operand:SI 0 "register_operand" "=b")
        !          1204:        (plus:SI (match_operand:SI 1 "register_operand" "%b")
        !          1205:                 (match_operand:SI 2 "romp_symbolic_operand" "s")))]
        !          1206:    ""
        !          1207:    "get %0,$%2(%1)"
        !          1208:    [(set_attr "type" "address")
        !          1209:     (set_attr "length" "8")])
        !          1210: 
        !          1211: (define_insn ""
        !          1212:   [(set (match_operand:SI 0 "register_operand" "=r,r,r,r,r,r,b")
        !          1213:        (plus:SI (match_operand:SI 1 "reg_or_add_operand" "%0,0,r,b,0,r,b")
        !          1214:                 (match_operand:SI 2 "reg_or_add_operand" "I,J,K,M,r,b,s")))]
        !          1215:   "register_operand (operands[1], SImode)
        !          1216:    || register_operand (operands[2], SImode)"
        !          1217:   "@
        !          1218:    ais %0,%2
        !          1219:    sis %0,%n2
        !          1220:    ail %0,%1,%2
        !          1221:    cau %0,%H2(%1)
        !          1222:    a %0,%2
        !          1223:    cas %0,%1,%2
        !          1224:    get %0,$%2(%1)"
        !          1225:   [(set_attr "type" "arith,arith,arith,address,arith,address,misc")
        !          1226:    (set_attr "length" "2,2,4,4,2,2,8")])
        !          1227: 
        !          1228: ;; Now subtract.
        !          1229: ;;
        !          1230: ;; 1.  If third operand is constant integer, convert it to add of the negative
        !          1231: ;;     of that integer.
        !          1232: ;; 2.  If the second operand is not a valid constant integer, force it into a
        !          1233: ;;     register.
        !          1234: (define_expand "subsi3"
        !          1235:   [(set (match_operand:SI 0 "register_operand" "")
        !          1236:        (minus:SI (match_operand:SI 1 "reg_or_any_cint_operand" "")
        !          1237:                  (match_operand:SI 2 "reg_or_any_cint_operand" "")))]
        !          1238:   ""
        !          1239:   "
        !          1240: {
        !          1241:   if (GET_CODE (operands [2]) == CONST_INT)
        !          1242:     {
        !          1243:       emit_insn (gen_addsi3 (operands[0], operands[1], 
        !          1244:                             gen_rtx (CONST_INT,
        !          1245:                                      VOIDmode, - INTVAL (operands[2]))));
        !          1246:       DONE;
        !          1247:     }
        !          1248:   else
        !          1249:     operands[2] = force_reg (SImode, operands[2]);
        !          1250: 
        !          1251:   if (GET_CODE (operands[1]) != CONST_INT
        !          1252:       || (unsigned) (INTVAL (operands[1]) + 0x8000) >= 0x10000)
        !          1253:     operands[1] = force_reg (SImode, operands[1]);
        !          1254: }")
        !          1255: 
        !          1256: (define_insn ""
        !          1257:   [(set (match_operand:SI 0 "register_operand" "=r,r,r")
        !          1258:        (minus:SI (match_operand:SI 1 "reg_or_D_operand" "K,0,r")
        !          1259:                  (match_operand:SI 2 "register_operand" "r,r,0")))]
        !          1260:   ""
        !          1261:   "@
        !          1262:    sfi %0,%2,%1
        !          1263:    s %0,%2
        !          1264:    sf %0,%1"
        !          1265:   [(set_attr "length" "4,2,2")])
        !          1266: 
        !          1267: ;; Multiply either calls a special RT routine or is done in-line, depending
        !          1268: ;; on the value of a -m flag.
        !          1269: ;;
        !          1270: ;; First define the way we call the subroutine.
        !          1271: (define_expand "mulsi3_subr"
        !          1272:   [(set (reg:SI 2) (match_operand:SI 1 "register_operand" ""))
        !          1273:    (set (reg:SI 3) (match_operand:SI 2 "register_operand" ""))
        !          1274:    (parallel [(set (reg:SI 2) (mult:SI (reg:SI 2) (reg:SI 3)))
        !          1275:              (clobber (reg:SI 0))
        !          1276:              (clobber (reg:SI 15))])
        !          1277:    (set (match_operand:SI 0 "register_operand" "")
        !          1278:        (reg:SI 2))]
        !          1279:   ""
        !          1280:   "")
        !          1281: 
        !          1282: (define_expand "mulsi3"
        !          1283:   [(set (match_operand:SI 0 "register_operand" "")
        !          1284:        (mult:SI (match_operand:SI 1 "register_operand" "")
        !          1285:                 (match_operand:SI 2 "register_operand" "")))]
        !          1286:   ""
        !          1287:   "
        !          1288: {
        !          1289:   if (! TARGET_IN_LINE_MUL)
        !          1290:     {
        !          1291:       emit_insn (gen_mulsi3_subr (operands[0], operands[1], operands[2]));
        !          1292:       DONE;
        !          1293:     }
        !          1294: }")
        !          1295: 
        !          1296: ;; Define the patterns to match.
        !          1297: ;; We would like to provide a delay slot for the insns that call internal
        !          1298: ;; routines, but doing so is risky since reorg will think that the use of
        !          1299: ;; r2 and r3 is completed in the insn needing the delay slot.  Also, it
        !          1300: ;; won't know that the cc will be clobbered.  So take the safe approach
        !          1301: ;; and don't give them delay slots.
        !          1302: (define_insn ""
        !          1303:   [(set (reg:SI 2)
        !          1304:        (mult:SI (reg:SI 2) (reg:SI 3)))
        !          1305:    (clobber (reg:SI 0))
        !          1306:    (clobber (reg:SI 15))]
        !          1307:   "! TARGET_IN_LINE_MUL"
        !          1308:   "bali%# r15,lmul$$"
        !          1309:   [(set_attr "type" "misc")
        !          1310:    (set_attr "in_delay_slot" "no")])
        !          1311: 
        !          1312: (define_insn ""
        !          1313:   [(set (match_operand:SI 0 "register_operand" "=&r")
        !          1314:        (mult:SI (match_operand:SI 1 "register_operand" "%r")
        !          1315:                 (match_operand:SI 2 "register_operand" "r")))]
        !          1316:   "TARGET_IN_LINE_MUL"
        !          1317:   "*
        !          1318: { return output_in_line_mul (); }"
        !          1319:   [(set_attr "length" "38")
        !          1320:    (set_attr "type" "multi")])
        !          1321: 
        !          1322: ;; Handle divide and modulus.  The same function returns both values,
        !          1323: ;; so use divmodsi4.  This divides arg 1 by arg 2 with quotient to go
        !          1324: ;; into arg 0 and remainder in arg 3.
        !          1325: ;;
        !          1326: ;; We want to put REG_EQUAL notes for the two outputs.  So we need a
        !          1327: ;; function to do everything else.
        !          1328: (define_expand "divmodsi4_doit"
        !          1329:   [(set (reg:SI 2)
        !          1330:        (match_operand:SI 0 "register_operand" ""))
        !          1331:    (set (reg:SI 3)
        !          1332:        (match_operand:SI 1 "register_operand" ""))
        !          1333:    (parallel [(set (reg:SI 2) (div:SI (reg:SI 2) (reg:SI 3)))
        !          1334:              (set (reg:SI 3) (mod:SI (reg:SI 2) (reg:SI 3)))
        !          1335:              (clobber (reg:SI 0))
        !          1336:              (clobber (reg:SI 15))])]
        !          1337:   ""
        !          1338:   "")
        !          1339: 
        !          1340: (define_expand "divmodsi4"
        !          1341:   [(parallel [(set (match_operand:SI 0 "register_operand" "")
        !          1342:                   (div:SI (match_operand:SI 1 "register_operand" "")
        !          1343:                           (match_operand:SI 2 "register_operand" "")))
        !          1344:              (set (match_operand:SI 3 "register_operand" "")
        !          1345:                   (mod:SI (match_dup 1) (match_dup 2)))])]
        !          1346:   ""
        !          1347:   "
        !          1348: {
        !          1349:   rtx insn;
        !          1350: 
        !          1351:   emit_insn (gen_divmodsi4_doit (operands[1], operands[2]));
        !          1352:   insn = emit_move_insn (operands[0], gen_rtx (REG, SImode, 2));
        !          1353:   REG_NOTES (insn) = gen_rtx (EXPR_LIST, REG_EQUAL,
        !          1354:                              gen_rtx (DIV, SImode, operands[1],
        !          1355:                                       operands[2]),
        !          1356:                              REG_NOTES (insn));
        !          1357:   insn = emit_move_insn (operands[3], gen_rtx (REG, SImode, 3));
        !          1358:   REG_NOTES (insn) = gen_rtx (EXPR_LIST, REG_EQUAL,
        !          1359:                              gen_rtx (MOD, SImode, operands[1],
        !          1360:                                       operands[2]),
        !          1361:                              REG_NOTES (insn));
        !          1362:   DONE;
        !          1363: }")
        !          1364: 
        !          1365: (define_insn ""
        !          1366:   [(set (reg:SI 2)
        !          1367:        (div:SI (reg:SI 2) (reg:SI 3)))
        !          1368:    (set (reg:SI 3)
        !          1369:        (mod:SI (reg:SI 2) (reg:SI 3)))
        !          1370:    (clobber (reg:SI 0))
        !          1371:    (clobber (reg:SI 15))]
        !          1372:   ""
        !          1373:   "bali%# r15,ldiv$$"
        !          1374:   [(set_attr "type" "misc")
        !          1375:    (set_attr "in_delay_slot" "no")])
        !          1376: 
        !          1377: ;; Similarly for unsigned divide.
        !          1378: (define_expand "udivmodsi4_doit"
        !          1379:   [(set (reg:SI 2)
        !          1380:        (match_operand:SI 0 "register_operand" ""))
        !          1381:    (set (reg:SI 3)
        !          1382:        (match_operand:SI 1 "register_operand" ""))
        !          1383:    (parallel [(set (reg:SI 2) (udiv:SI (reg:SI 2) (reg:SI 3)))
        !          1384:              (set (reg:SI 3) (umod:SI (reg:SI 2) (reg:SI 3)))
        !          1385:              (clobber (reg:SI 0))
        !          1386:              (clobber (reg:SI 15))])]
        !          1387:   ""
        !          1388:   "")
        !          1389: 
        !          1390: (define_expand "udivmodsi4"
        !          1391:   [(parallel [(set (match_operand:SI 0 "register_operand" "")
        !          1392:                   (udiv:SI (match_operand:SI 1 "register_operand" "")
        !          1393:                            (match_operand:SI 2 "register_operand" "")))
        !          1394:              (set (match_operand:SI 3 "register_operand" "")
        !          1395:                   (umod:SI (match_dup 1) (match_dup 2)))])]
        !          1396:   ""
        !          1397:   "
        !          1398: {
        !          1399:   rtx insn;
        !          1400: 
        !          1401:   emit_insn (gen_udivmodsi4_doit (operands[1], operands[2]));
        !          1402:   insn = emit_move_insn (operands[0], gen_rtx (REG, SImode, 2));
        !          1403:   REG_NOTES (insn) = gen_rtx (EXPR_LIST, REG_EQUAL,
        !          1404:                              gen_rtx (UDIV, SImode, operands[1],
        !          1405:                                       operands[2]),
        !          1406:                              REG_NOTES (insn));
        !          1407:   insn = emit_move_insn (operands[3], gen_rtx (REG, SImode, 3));
        !          1408:   REG_NOTES (insn) = gen_rtx (EXPR_LIST, REG_EQUAL,
        !          1409:                              gen_rtx (UMOD, SImode, operands[1],
        !          1410:                                       operands[2]),
        !          1411:                              REG_NOTES (insn));
        !          1412:   DONE;
        !          1413: }")
        !          1414: 
        !          1415: (define_insn ""
        !          1416:   [(set (reg:SI 2)
        !          1417:        (udiv:SI (reg:SI 2) (reg:SI 3)))
        !          1418:    (set (reg:SI 3)
        !          1419:        (umod:SI (reg:SI 2) (reg:SI 3)))
        !          1420:    (clobber (reg:SI 0))
        !          1421:    (clobber (reg:SI 15))]
        !          1422:   ""
        !          1423:   "bali%# r15,uldiv$$"
        !          1424:   [(set_attr "type" "misc")
        !          1425:    (set_attr "in_delay_slot" "no")])
        !          1426: 
        !          1427: ;; Define DImode arithmetic operations.
        !          1428: ;;
        !          1429: ;; It is possible to do certain adds and subtracts with constants in a single
        !          1430: ;; insn, but it doesn't seem worth the trouble.
        !          1431: ;;
        !          1432: ;; Don't use DEFINE_SPLIT on these because the dependency on CC can't be
        !          1433: ;; easily tracked in that case!
        !          1434: (define_insn "adddi3"
        !          1435:   [(set (match_operand:DI 0 "register_operand" "=r")
        !          1436:        (plus:DI (match_operand:DI 1 "register_operand" "%0")
        !          1437:                 (match_operand:DI 2 "register_operand" "r")))]
        !          1438:   ""
        !          1439:   "a %O0,%O2\;ae %0,%2"
        !          1440:   [(set_attr "type" "multi")])
        !          1441: 
        !          1442: (define_insn "subdi3"
        !          1443:   [(set (match_operand:DI 0 "register_operand" "=r")
        !          1444:        (minus:DI (match_operand:DI 1 "register_operand" "0")
        !          1445:                  (match_operand:DI 2 "register_operand" "r")))]
        !          1446:   ""
        !          1447:   "s %O0,%O2\;se %0,%2"
        !          1448:   [(set_attr "type" "multi")])
        !          1449: 
        !          1450: (define_insn "negdi2"
        !          1451:   [(set (match_operand:DI 0 "register_operand" "=r,&r")
        !          1452:        (neg:DI (match_operand:DI 1 "register_operand" "0,r")))]
        !          1453:   ""
        !          1454:   "twoc %O0,%O1\;onec %0,%1\;aei %0,%0,0"
        !          1455:   [(set_attr "type" "multi")
        !          1456:    (set_attr "length" "8")])
        !          1457: 
        !          1458: ;; Unary arithmetic operations.
        !          1459: (define_insn "abssi2"
        !          1460:   [(set (match_operand:SI 0 "register_operand" "=r")
        !          1461:        (abs:SI (match_operand:SI 1 "register_operand" "r")))]
        !          1462:   ""
        !          1463:   "abs %0,%1"
        !          1464:   [(set_attr "length" "2")])
        !          1465: 
        !          1466: (define_insn "negsi2"
        !          1467:   [(set (match_operand:SI 0 "register_operand" "=r")
        !          1468:        (neg:SI (match_operand:SI 1 "register_operand" "r")))]
        !          1469:   ""
        !          1470:   "twoc %0,%1"
        !          1471:   [(set_attr "length" "2")])
        !          1472: 
        !          1473: (define_insn "one_cmplsi2"
        !          1474:   [(set (match_operand:SI 0 "register_operand" "=r")
        !          1475:        (not:SI (match_operand:SI 1 "register_operand" "r")))]
        !          1476:   ""
        !          1477:   "onec %0,%1"
        !          1478:   [(set_attr "length" "2")])
        !          1479: 
        !          1480: 
        !          1481: ;; Logical insns: AND, IOR, and XOR
        !          1482: ;;
        !          1483: ;; If the operation is being performed on a 32-bit constant such that
        !          1484: ;; it cannot be done in one insn, do it in two.  We may lose a bit on
        !          1485: ;; CSE in pathological cases, but it seems better doing it this way.
        !          1486: (define_expand "andsi3"
        !          1487:   [(set (match_operand:SI 0 "register_operand" "")
        !          1488:        (and:SI (match_operand:SI 1 "register_operand" "")
        !          1489:                (match_operand:SI 2 "reg_or_any_cint_operand" "")))]
        !          1490:   ""
        !          1491:   "
        !          1492: {
        !          1493:   if (GET_CODE (operands[2]) == CONST_INT)
        !          1494:     {
        !          1495:       int top = (unsigned) INTVAL (operands[2]) >> 16;
        !          1496:       int bottom = INTVAL (operands[2]) & 0xffff;
        !          1497: 
        !          1498:       if (top != 0 && top != 0xffff && bottom != 0 && bottom != 0xffff)
        !          1499:        {
        !          1500:          emit_insn (gen_andsi3 (operands[0], operands[1],
        !          1501:                                 gen_rtx (CONST_INT, VOIDmode,
        !          1502:                                          (top << 16) | 0xffff)));
        !          1503:          operands[1] = operands[0];
        !          1504:          operands[2] = gen_rtx (CONST_INT, VOIDmode, 0xffff0000 | bottom);
        !          1505:        }
        !          1506:     }
        !          1507: }");
        !          1508: 
        !          1509: (define_insn ""
        !          1510:   [(set (match_operand:SI 0 "register_operand" "=r,r,r")
        !          1511:        (and:SI (match_operand:SI 1 "reg_or_and_operand" "%0,r,0")
        !          1512:                (match_operand:SI 2 "reg_or_and_operand" "P,LMO,r")))]
        !          1513:   "register_operand (operands[1], SImode)
        !          1514:    || register_operand (operands[2], SImode)"
        !          1515:   "@
        !          1516:    clrb%k2 %0,%b2
        !          1517:    ni%z2 %0,%1,%Z2
        !          1518:    n %0,%2"
        !          1519:   [(set_attr "length" "2,4,2")])
        !          1520: 
        !          1521: ;; logical OR (IOR)
        !          1522: (define_expand "iorsi3"
        !          1523:   [(set (match_operand:SI 0 "register_operand" "")
        !          1524:        (ior:SI (match_operand:SI 1 "register_operand" "")
        !          1525:                (match_operand:SI 2 "reg_or_any_cint_operand" "")))]
        !          1526:   ""
        !          1527:   "
        !          1528: {
        !          1529:   if (GET_CODE (operands[2]) == CONST_INT)
        !          1530:     {
        !          1531:       int top = (unsigned) INTVAL (operands[2]) >> 16;
        !          1532:       int bottom = INTVAL (operands[2]) & 0xffff;
        !          1533: 
        !          1534:       if (top != 0 && bottom != 0)
        !          1535:        {
        !          1536:          emit_insn (gen_iorsi3 (operands[0], operands[1],
        !          1537:                                 gen_rtx (CONST_INT, VOIDmode, (top << 16))));
        !          1538:          operands[1] = operands[0];
        !          1539:          operands[2] = gen_rtx (CONST_INT, VOIDmode, bottom);
        !          1540:        }
        !          1541:     }
        !          1542: }");
        !          1543: 
        !          1544: (define_insn ""
        !          1545:   [(set (match_operand:SI 0 "register_operand" "=r,r,r")
        !          1546:        (ior:SI (match_operand:SI 1 "reg_or_cint_operand" "%0,r,0")
        !          1547:                (match_operand:SI 2 "reg_or_cint_operand" "N,LM,r")))]
        !          1548:   "register_operand (operands[1], SImode)
        !          1549:    || register_operand (operands[2], SImode)"
        !          1550:   "@
        !          1551:    setb%h2 %0,%b2
        !          1552:    oi%h2 %0,%1,%H2
        !          1553:    o %0,%2"
        !          1554:   [(set_attr "length" "2,4,2")])
        !          1555: 
        !          1556: ;; exclusive-or (XOR)
        !          1557: (define_expand "xorsi3"
        !          1558:   [(set (match_operand:SI 0 "register_operand" "")
        !          1559:        (xor:SI (match_operand:SI 1 "register_operand" "")
        !          1560:                (match_operand:SI 2 "reg_or_any_cint_operand" "")))]
        !          1561:   ""
        !          1562:   "
        !          1563: {
        !          1564:   if (GET_CODE (operands[2]) == CONST_INT)
        !          1565:     {
        !          1566:       int top = (unsigned) INTVAL (operands[2]) >> 16;
        !          1567:       int bottom = INTVAL (operands[2]) & 0xffff;
        !          1568: 
        !          1569:       if (top == 0xffff && bottom == 0xffff)
        !          1570:        {
        !          1571:          emit_insn (gen_one_cmplsi2 (operands[0], operands[1]));
        !          1572:          DONE;
        !          1573:        }
        !          1574:       else if (top != 0 && bottom != 0)
        !          1575:        {
        !          1576:          emit_insn (gen_xorsi3 (operands[0], operands[1],
        !          1577:                                 gen_rtx (CONST_INT, VOIDmode, (top << 16))));
        !          1578:          operands[1] = operands[0];
        !          1579:          operands[2] = gen_rtx (CONST_INT, VOIDmode, bottom);
        !          1580:        }
        !          1581:     }
        !          1582: }");
        !          1583: 
        !          1584: (define_insn ""
        !          1585:   [(set (match_operand:SI 0 "register_operand" "=r,r")
        !          1586:        (xor:SI (match_operand:SI 1 "reg_or_cint_operand" "%r,0")
        !          1587:                (match_operand:SI 2 "reg_or_cint_operand" "LM,r")))]
        !          1588:   "register_operand (operands[1], SImode)
        !          1589:    || register_operand (operands[2], SImode)"
        !          1590:   "@
        !          1591:    xi%h2 %0,%1,%H2
        !          1592:    x %0,%2"
        !          1593:   [(set_attr "length" "4,2")])
        !          1594: 
        !          1595: ;; Various shift insns
        !          1596: (define_insn "ashrsi3"
        !          1597:   [(set (match_operand:SI 0 "register_operand" "=r,r")
        !          1598:        (ashiftrt:SI (match_operand:SI 1 "register_operand" "0,0")
        !          1599:                     (match_operand:QI 2 "reg_or_cint_operand" "r,n")))]
        !          1600:   ""
        !          1601:   "@
        !          1602:    sar %0,%2
        !          1603:    sari%s2 %0,%S2"
        !          1604:   [(set_attr "length" "2")])
        !          1605: 
        !          1606: (define_insn "lshrsi3"
        !          1607:   [(set (match_operand:SI 0 "register_operand" "=r,r")
        !          1608:        (lshiftrt:SI (match_operand:SI 1 "register_operand" "0,0")
        !          1609:                     (match_operand:QI 2 "reg_or_cint_operand" "r,n")))]
        !          1610:   ""
        !          1611:   "@
        !          1612:    sr %0,%2
        !          1613:    sri%s2 %0,%S2"
        !          1614:   [(set_attr "length" "2")])
        !          1615: 
        !          1616: (define_insn ""
        !          1617:   [(set (match_operand:SI 0 "register_operand" "=r")
        !          1618:        (ashift:SI (match_operand:SI 1 "register_operand" "b")
        !          1619:                   (const_int 1)))]
        !          1620:   ""
        !          1621:   "cas %0,%1,%1"
        !          1622:   [(set_attr "length" "2")
        !          1623:    (set_attr "type" "address")])
        !          1624: 
        !          1625: (define_insn "ashlsi3"
        !          1626:   [(set (match_operand:SI 0 "register_operand" "=r,r")
        !          1627:        (ashift:SI (match_operand:SI 1 "register_operand" "0,0")
        !          1628:                   (match_operand:QI 2 "reg_or_cint_operand" "r,n")))]
        !          1629:   ""
        !          1630:   "@
        !          1631:    sl %0,%2
        !          1632:    sli%s2 %0,%S2"
        !          1633:   [(set_attr "length" "2")])
        !          1634: 
        !          1635: ;; Function call insns:
        !          1636: ;;
        !          1637: ;; On the ROMP, &fcn is actually a pointer to the data area, which is passed
        !          1638: ;; to the function in r0.  &.fcn is the actual starting address of the
        !          1639: ;; function.  Also, the word at &fcn contains &.fcn.
        !          1640: ;;
        !          1641: ;; For both functions that do and don't return values, there are two cases:
        !          1642: ;; where the function's address is a constant, and where it isn't.
        !          1643: ;;
        !          1644: ;; Operand 1 (2 for `call_value') is the number of arguments and is not used.
        !          1645: (define_expand "call"
        !          1646:   [(use (reg:SI 0))
        !          1647:    (parallel [(call (mem:SI (match_operand:SI 0 "address_operand" ""))
        !          1648:                    (match_operand 1 "" ""))
        !          1649:              (clobber (reg:SI 15))])]
        !          1650:   ""
        !          1651:   "
        !          1652: {
        !          1653:   if (GET_CODE (operands[0]) != MEM || GET_CODE (operands[1]) != CONST_INT)
        !          1654:     abort();
        !          1655: 
        !          1656:   operands[0] = XEXP (operands[0], 0);
        !          1657:   if (GET_CODE (operands[0]) == SYMBOL_REF)
        !          1658:     {
        !          1659:       extern rtx get_symref ();
        !          1660:       char *real_fcnname =
        !          1661:                (char *) alloca (strlen (XSTR (operands[0], 0)) + 2);
        !          1662: 
        !          1663:       /* Copy the data area address to r0.  */
        !          1664:       emit_move_insn (gen_rtx (REG, SImode, 0),
        !          1665:                      force_reg (SImode, operands[0]));
        !          1666:       strcpy (real_fcnname, \".\");
        !          1667:       strcat (real_fcnname, XSTR (operands[0], 0));
        !          1668:       operands[0] = get_symref (real_fcnname);
        !          1669:     }
        !          1670:   else
        !          1671:     {
        !          1672:       rtx data_access;
        !          1673: 
        !          1674:       emit_move_insn (gen_rtx (REG, SImode, 0),
        !          1675:                      force_reg (SImode, operands[0]));
        !          1676:       data_access = gen_rtx (MEM, SImode, operands[0]);
        !          1677:       RTX_UNCHANGING_P (data_access) = 1;
        !          1678:       operands[0] = copy_to_reg (data_access);
        !          1679:     }
        !          1680: }")
        !          1681: 
        !          1682: (define_insn ""
        !          1683:   [(call (mem:SI (match_operand:SI 0 "register_operand" "b"))
        !          1684:         (match_operand 1 "" "g"))
        !          1685:    (clobber (reg:SI 15))]
        !          1686:   ""
        !          1687:   "balr%# r15,%0"
        !          1688:   [(set_attr "type" "call")
        !          1689:    (set_attr "length" "2")])
        !          1690: 
        !          1691: (define_insn ""
        !          1692:   [(call (mem:SI (match_operand:SI 0 "romp_symbolic_operand" "i"))
        !          1693:         (match_operand 1 "" "g"))
        !          1694:    (clobber (reg:SI 15))]
        !          1695:   "GET_CODE (operands[0]) == SYMBOL_REF"
        !          1696:   "bali%# r15,%0"
        !          1697:   [(set_attr "type" "call")])
        !          1698: 
        !          1699: ;; Call a function and return a value.
        !          1700: (define_expand "call_value"
        !          1701:   [(use (reg:SI 0))
        !          1702:    (parallel [(set (match_operand 0 "" "=fg")
        !          1703:                   (call (mem:SI (match_operand:SI 1 "address_operand" ""))
        !          1704:                         (match_operand 2 "" "")))
        !          1705:              (clobber (reg:SI 15))])]
        !          1706:   ""
        !          1707:   "
        !          1708: {
        !          1709:   if (GET_CODE (operands[1]) != MEM || GET_CODE (operands[2]) != CONST_INT)
        !          1710:     abort();
        !          1711: 
        !          1712:   operands[1] = XEXP (operands[1], 0);
        !          1713:   if (GET_CODE (operands[1]) == SYMBOL_REF)
        !          1714:     {
        !          1715:       extern rtx get_symref ();
        !          1716:       char *real_fcnname =
        !          1717:                (char *) alloca (strlen (XSTR (operands[1], 0)) + 2);
        !          1718: 
        !          1719:       /* Copy the data area address to r0.  */
        !          1720:       emit_move_insn (gen_rtx (REG, SImode, 0),
        !          1721:                      force_reg (SImode, operands[1]));
        !          1722:       strcpy (real_fcnname, \".\");
        !          1723:       strcat (real_fcnname, XSTR (operands[1], 0));
        !          1724:       operands[1] = get_symref (real_fcnname);
        !          1725:     }
        !          1726:   else
        !          1727:     {
        !          1728:       rtx data_access;
        !          1729: 
        !          1730:       emit_move_insn (gen_rtx (REG, SImode, 0),
        !          1731:                      force_reg (SImode, operands[1]));
        !          1732:       data_access = gen_rtx (MEM, SImode, operands[1]);
        !          1733:       RTX_UNCHANGING_P (data_access) = 1;
        !          1734:       operands[1] = copy_to_reg (data_access);
        !          1735:     }
        !          1736: }")
        !          1737: 
        !          1738: (define_insn ""
        !          1739:   [(set (match_operand 0 "" "=fg")
        !          1740:        (call (mem:SI (match_operand:SI 1 "register_operand" "b"))
        !          1741:              (match_operand 2 "" "g")))
        !          1742:    (clobber (reg:SI 15))]
        !          1743:   ""
        !          1744:   "balr%# r15,%1"
        !          1745:   [(set_attr "length" "2")
        !          1746:    (set_attr "type" "call")])
        !          1747: 
        !          1748: (define_insn ""
        !          1749:   [(set (match_operand 0 "" "=fg")
        !          1750:        (call (mem:SI (match_operand:SI 1 "romp_symbolic_operand" "i"))
        !          1751:              (match_operand 2 "" "g")))
        !          1752:    (clobber (reg:SI 15))]
        !          1753:   "GET_CODE (operands[1]) == SYMBOL_REF"
        !          1754:   "bali%# r15,%1"
        !          1755:   [(set_attr "type" "call")])
        !          1756: 
        !          1757: ;; No operation insn.
        !          1758: (define_insn "nop"
        !          1759:   [(const_int 0)]
        !          1760:   ""
        !          1761:   "nopr r0"
        !          1762:   [(set_attr "type" "address")
        !          1763:    (set_attr "length" "2")
        !          1764:    (set_attr "cc" "none")])
        !          1765: 
        !          1766: ;; Here are the floating-point operations.
        !          1767: ;;
        !          1768: ;; Start by providing DEFINE_EXPAND for each operation.
        !          1769: ;; The insns will be handled with MATCH_OPERATOR; the methodology will be
        !          1770: ;; discussed below.
        !          1771: 
        !          1772: ;; First the conversion operations.
        !          1773: 
        !          1774: (define_expand "truncdfsf2"
        !          1775:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !          1776:                   (float_truncate:SF (match_operand:DF 1 "general_operand" "")))
        !          1777:              (clobber (reg:SI 0))
        !          1778:              (clobber (reg:SI 15))])]
        !          1779:   ""
        !          1780:   "")
        !          1781: 
        !          1782: (define_expand "extendsfdf2"
        !          1783:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !          1784:                   (float_extend:DF (match_operand:SF 1 "general_operand" "")))
        !          1785:              (clobber (reg:SI 0))
        !          1786:              (clobber (reg:SI 15))])]
        !          1787:   ""
        !          1788:   "")
        !          1789: 
        !          1790: (define_expand "floatsisf2"
        !          1791:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !          1792:                   (float:SF (match_operand:SI 1 "general_operand" "")))
        !          1793:              (clobber (reg:SI 0))
        !          1794:              (clobber (reg:SI 15))])]
        !          1795:   ""
        !          1796:   "")
        !          1797: 
        !          1798: (define_expand "floatsidf2"
        !          1799:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !          1800:                   (float:DF (match_operand:SI 1 "general_operand" "")))
        !          1801:              (clobber (reg:SI 0))
        !          1802:              (clobber (reg:SI 15))])]
        !          1803:   ""
        !          1804:   "")
        !          1805: 
        !          1806: (define_expand "fix_truncsfsi2"
        !          1807:   [(parallel [(set (match_operand:SI 0 "general_operand" "")
        !          1808:                   (fix:SI (match_operand:SF 1 "general_operand" "")))
        !          1809:              (clobber (reg:SI 0))
        !          1810:              (clobber (reg:SI 15))])]
        !          1811:   ""
        !          1812:   "")
        !          1813: 
        !          1814: (define_expand "fix_truncdfsi2"
        !          1815:   [(parallel [(set (match_operand:SI 0 "general_operand" "")
        !          1816:                   (fix:SI (match_operand:DF 1 "general_operand" "")))
        !          1817:              (clobber (reg:SI 0))
        !          1818:              (clobber (reg:SI 15))])]
        !          1819:   ""
        !          1820:   "")
        !          1821: 
        !          1822: ;; Now the binary operations.
        !          1823: 
        !          1824: (define_expand "addsf3"
        !          1825:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !          1826:                   (plus:SF (match_operand:SF 1 "general_operand" "")
        !          1827:                            (match_operand:SF 2 "general_operand" "")))
        !          1828:              (clobber (reg:SI 0))
        !          1829:              (clobber (reg:SI 15))])]
        !          1830:   ""
        !          1831:   "")
        !          1832: 
        !          1833: (define_expand "adddf3"
        !          1834:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !          1835:                   (plus:DF (match_operand:DF 1 "general_operand" "")
        !          1836:                            (match_operand:DF 2 "general_operand" "")))
        !          1837:               (clobber (reg:SI 0))
        !          1838:               (clobber (reg:SI 15))])]
        !          1839:   ""
        !          1840:   "")
        !          1841: 
        !          1842: (define_expand "subsf3"
        !          1843:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !          1844:                   (minus:SF (match_operand:SF 1 "general_operand" "")
        !          1845:                             (match_operand:SF 2 "general_operand" "")))
        !          1846:              (clobber (reg:SI 0))
        !          1847:              (clobber (reg:SI 15))])]
        !          1848:   ""
        !          1849:   "")
        !          1850: 
        !          1851: (define_expand "subdf3"
        !          1852:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !          1853:                   (minus:DF (match_operand:DF 1 "general_operand" "")
        !          1854:                             (match_operand:DF 2 "general_operand" "")))
        !          1855:              (clobber (reg:SI 0))
        !          1856:              (clobber (reg:SI 15))])]
        !          1857:   ""
        !          1858:   "")
        !          1859: 
        !          1860: (define_expand "mulsf3"
        !          1861:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !          1862:                   (mult:SF (match_operand:SF 1 "general_operand" "")
        !          1863:                            (match_operand:SF 2 "general_operand" "")))
        !          1864:              (clobber (reg:SI 0))
        !          1865:              (clobber (reg:SI 15))])]
        !          1866:   ""
        !          1867:   "")
        !          1868: 
        !          1869: (define_expand "muldf3"
        !          1870:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !          1871:                   (mult:DF (match_operand:DF 1 "general_operand" "")
        !          1872:                            (match_operand:DF 2 "general_operand" "")))
        !          1873:              (clobber (reg:SI 0))
        !          1874:              (clobber (reg:SI 15))])]
        !          1875:   ""
        !          1876:   "")
        !          1877: 
        !          1878: (define_expand "divsf3"
        !          1879:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !          1880:                   (div:SF (match_operand:SF 1 "general_operand" "")
        !          1881:                           (match_operand:SF 2 "general_operand" "")))
        !          1882:              (clobber (reg:SI 0))
        !          1883:              (clobber (reg:SI 15))])]
        !          1884:   ""
        !          1885:   "")
        !          1886: 
        !          1887: (define_expand "divdf3"
        !          1888:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !          1889:                   (div:DF (match_operand:DF 1 "general_operand" "")
        !          1890:                           (match_operand:DF 2 "general_operand" "")))
        !          1891:              (clobber (reg:SI 0))
        !          1892:              (clobber (reg:SI 15))])]
        !          1893:   ""
        !          1894:   "")
        !          1895: 
        !          1896: ;; Unary floating-point operations.
        !          1897: ;;
        !          1898: ;; Negations can be done without floating-point, since this is IEEE.
        !          1899: ;; But we cannot do this if an operand is a hard FP register, since
        !          1900: ;; the SUBREG we create would not be valid.
        !          1901: (define_expand "negsf2"
        !          1902:   [(set (match_operand:SF 0 "register_operand" "")
        !          1903:        (neg:SF (match_operand:SF 1 "register_operand" "")))]
        !          1904:   ""
        !          1905:   "
        !          1906: {
        !          1907:   if (! (GET_CODE (operands[0]) == REG
        !          1908:         && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
        !          1909:         && FP_REGNO_P (REGNO (operands[0])))
        !          1910:       && ! (GET_CODE (operands[1]) == REG
        !          1911:            && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
        !          1912:            && FP_REGNO_P (REGNO (operands[1]))))
        !          1913:     {
        !          1914:       rtx result;
        !          1915:       rtx target = operand_subword (operands[0], 0, 1, SFmode);
        !          1916: 
        !          1917:       result = expand_binop (SImode, xor_optab,
        !          1918:                             operand_subword_force (operands[1], 0, SFmode),
        !          1919:                             gen_rtx (CONST_INT, VOIDmode, 0x80000000),
        !          1920:                             target, 0, OPTAB_WIDEN);
        !          1921:       if (result == 0)
        !          1922:        abort ();
        !          1923: 
        !          1924:       if (result != target)
        !          1925:        emit_move_insn (result, target);
        !          1926: 
        !          1927:       /* Make a place for REG_EQUAL.  */
        !          1928:       emit_move_insn (operands[0], operands[0]);
        !          1929:       DONE;
        !          1930:     }
        !          1931: }")
        !          1932: 
        !          1933: (define_expand "negdf2"
        !          1934:   [(set (match_operand:DF 0 "register_operand" "")
        !          1935:        (neg:DF (match_operand:DF 1 "register_operand" "")))]
        !          1936:   ""
        !          1937:   "
        !          1938: {
        !          1939:   if (! (GET_CODE (operands[0]) == REG
        !          1940:         && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
        !          1941:         && FP_REGNO_P (REGNO (operands[0])))
        !          1942:       && ! (GET_CODE (operands[1]) == REG
        !          1943:            && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
        !          1944:            && FP_REGNO_P (REGNO (operands[1]))))
        !          1945:     {
        !          1946:       rtx result;
        !          1947:       rtx target = operand_subword (operands[0], 0, 1, DFmode);
        !          1948:       rtx insns;
        !          1949: 
        !          1950:       start_sequence ();
        !          1951:       result = expand_binop (SImode, xor_optab,
        !          1952:                             operand_subword_force (operands[1], 0, DFmode),
        !          1953:                             gen_rtx (CONST_INT, VOIDmode, 0x80000000),
        !          1954:                             target, 0, OPTAB_WIDEN);
        !          1955:       if (result == 0)
        !          1956:        abort ();
        !          1957: 
        !          1958:       if (result != target)
        !          1959:        emit_move_insn (result, target);
        !          1960:   
        !          1961:       emit_move_insn (operand_subword (operands[0], 1, 1, DFmode),
        !          1962:                      operand_subword_force (operands[1], 1, DFmode));
        !          1963: 
        !          1964:       insns = get_insns ();
        !          1965:       end_sequence ();
        !          1966: 
        !          1967:       emit_no_conflict_block (insns, operands[0], operands[1], 0, 0);
        !          1968:       DONE;
        !          1969:     }
        !          1970: }")
        !          1971: 
        !          1972: (define_expand "abssf2"
        !          1973:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !          1974:                   (abs:SF (match_operand:SF 1 "general_operand" "")))
        !          1975:              (clobber (reg:SI 0))
        !          1976:              (clobber (reg:SI 15))])]
        !          1977:   ""
        !          1978:   "")
        !          1979: 
        !          1980: (define_expand "absdf2"
        !          1981:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !          1982:                   (abs:DF (match_operand:DF 1 "general_operand" "")))
        !          1983:              (clobber (reg:SI 0))
        !          1984:              (clobber (reg:SI 15))])]
        !          1985:   ""
        !          1986:   "")
        !          1987: 
        !          1988: ;; Any floating-point operation can be either SFmode or DFmode, and each
        !          1989: ;; operand (including the output) can be either a normal operand or a
        !          1990: ;; conversion from a normal operand.
        !          1991: ;;
        !          1992: ;; We use MATCH_OPERATOR to match a floating-point binary or unary operator
        !          1993: ;; and input and output conversions.  So we need 2^N patterns for each type
        !          1994: ;; of operation, where N is the number of operands, including the output.
        !          1995: ;; There are thus a total of 14 patterns, 8 for binary operations, 4 for
        !          1996: ;; unary operations and two for conversion/move operations (only one
        !          1997: ;; operand can have a conversion for move operations).  In addition, we have
        !          1998: ;; to be careful that a floating-point reload register doesn't get allocated
        !          1999: ;; for an integer.  We take care of this for inputs with PREFERRED_RELOAD_CLASS
        !          2000: ;; but need to have two different constraints for outputs.  This means that
        !          2001: ;; we have to duplicate each pattern where the output could be an integer.
        !          2002: ;; This adds another 7 patterns, for a total of 21.
        !          2003: 
        !          2004: ;; Start with conversion operations (moves are done above).
        !          2005: 
        !          2006: (define_insn ""
        !          2007:   [(set (match_operand:SI 0 "general_operand" "=g")
        !          2008:        (match_operator 1 "float_conversion"
        !          2009:                [(match_operand 2 "general_operand" "frg")]))
        !          2010:    (clobber (match_operand:SI 3 "reg_0_operand" "=&z"))
        !          2011:    (clobber (match_operand:SI 4 "reg_15_operand" "=&t"))]
        !          2012:   ""
        !          2013:   "*
        !          2014: { return output_fpop (SET, operands[0], operands[2], 0, insn);
        !          2015: }"
        !          2016:   [(set_attr "type" "fp")])
        !          2017: 
        !          2018: (define_insn ""
        !          2019:   [(set (match_operand 0 "general_operand" "=frg")
        !          2020:        (match_operator 1 "float_conversion"
        !          2021:                [(match_operand 2 "general_operand" "frg")]))
        !          2022:    (clobber (match_operand:SI 3 "reg_0_operand" "=&z"))
        !          2023:    (clobber (match_operand:SI 4 "reg_15_operand" "=&t"))]
        !          2024:   ""
        !          2025:   "*
        !          2026: { return output_fpop (SET, operands[0], operands[2], 0, insn);
        !          2027: }"
        !          2028:   [(set_attr "type" "fp")])
        !          2029: 
        !          2030: ;; Next, binary floating-point operations.
        !          2031: 
        !          2032: (define_insn ""
        !          2033:   [(set (match_operand 0 "general_operand" "=frg")
        !          2034:        (match_operator 1 "float_binary"
        !          2035:                [(match_operand 2 "general_operand" "frg")
        !          2036:                 (match_operand 3 "general_operand" "frg")]))
        !          2037:    (clobber (match_operand:SI 4 "reg_0_operand" "=&z"))
        !          2038:    (clobber (match_operand:SI 5 "reg_15_operand" "=&t"))]
        !          2039:   "check_precision (GET_MODE (operands[1]), operands[2], operands[3])"
        !          2040:   "*
        !          2041: { return output_fpop (GET_CODE (operands[1]), operands[0], 
        !          2042:                      operands[2], operands[3], insn);
        !          2043: }"
        !          2044:   [(set_attr "type" "fp")])
        !          2045: 
        !          2046: (define_insn ""
        !          2047:   [(set (match_operand 0 "general_operand" "=frg")
        !          2048:        (match_operator 1 "float_binary"
        !          2049:                [(match_operand 2 "general_operand" "frg")
        !          2050:                 (match_operator 3 "float_conversion"
        !          2051:                        [(match_operand 4 "general_operand" "frg")])]))
        !          2052:    (clobber (match_operand:SI 5 "reg_0_operand" "=&z"))
        !          2053:    (clobber (match_operand:SI 6 "reg_15_operand" "=&t"))]
        !          2054:   "check_precision (GET_MODE (operands[1]), operands[2], operands[4])"
        !          2055:   "*
        !          2056: { return output_fpop (GET_CODE (operands[1]), operands[0], 
        !          2057:                      operands[2], operands[4], insn);
        !          2058: }"
        !          2059:   [(set_attr "type" "fp")])
        !          2060: 
        !          2061: (define_insn ""
        !          2062:   [(set (match_operand 0 "general_operand" "=frg")
        !          2063:        (match_operator 1 "float_binary"
        !          2064:                [(match_operator 2 "float_conversion"
        !          2065:                        [(match_operand 3 "general_operand" "frg")])
        !          2066:                 (match_operand 4 "general_operand" "frg")]))
        !          2067:    (clobber (match_operand:SI 5 "reg_0_operand" "=&z"))
        !          2068:    (clobber (match_operand:SI 6 "reg_15_operand" "=&t"))]
        !          2069:   "check_precision (GET_MODE (operands[1]), operands[3], operands[4])"
        !          2070:   "*
        !          2071: { return output_fpop (GET_CODE (operands[1]), operands[0], 
        !          2072:                      operands[3], operands[4], insn);
        !          2073: }"
        !          2074:   [(set_attr "type" "fp")])
        !          2075: 
        !          2076: (define_insn ""
        !          2077:   [(set (match_operand 0 "general_operand" "=frg")
        !          2078:        (match_operator 1 "float_binary"
        !          2079:                [(match_operator 2 "float_conversion"
        !          2080:                        [(match_operand 3 "general_operand" "frg")])
        !          2081:                 (match_operator 4 "float_conversion"
        !          2082:                        [(match_operand 5 "general_operand" "frg")])]))
        !          2083:    (clobber (match_operand:SI 6 "reg_0_operand" "=&z"))
        !          2084:    (clobber (match_operand:SI 7 "reg_15_operand" "=&t"))]
        !          2085:   "check_precision (GET_MODE (operands[1]), operands[3], operands[5])"
        !          2086:   "*
        !          2087: { return output_fpop (GET_CODE (operands[1]), operands[0], 
        !          2088:                      operands[3], operands[5], insn);
        !          2089: }"
        !          2090:   [(set_attr "type" "fp")])
        !          2091: 
        !          2092: (define_insn ""
        !          2093:   [(set (match_operand:SI 0 "general_operand" "=g")
        !          2094:        (match_operator 1 "float_conversion"
        !          2095:                [(match_operator 2 "float_binary"
        !          2096:                        [(match_operand 3 "general_operand" "frg")
        !          2097:                         (match_operand 4 "general_operand" "frg")])]))
        !          2098:    (clobber (match_operand:SI 5 "reg_0_operand" "=&z"))
        !          2099:    (clobber (match_operand:SI 6 "reg_15_operand" "=&t"))]
        !          2100:   "check_precision (GET_MODE (operands[2]), operands[3], operands[4])"
        !          2101:   "*
        !          2102: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2103:                      operands[3], operands[4], insn);
        !          2104: }"
        !          2105:   [(set_attr "type" "fp")])
        !          2106: 
        !          2107: (define_insn ""
        !          2108:   [(set (match_operand 0 "general_operand" "=frg")
        !          2109:        (match_operator 1 "float_conversion"
        !          2110:                [(match_operator 2 "float_binary"
        !          2111:                        [(match_operand 3 "general_operand" "frg")
        !          2112:                         (match_operand 4 "general_operand" "frg")])]))
        !          2113:    (clobber (match_operand:SI 5 "reg_0_operand" "=&z"))
        !          2114:    (clobber (match_operand:SI 6 "reg_15_operand" "=&t"))]
        !          2115:   "check_precision (GET_MODE (operands[2]), operands[3], operands[4])"
        !          2116:   "*
        !          2117: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2118:                      operands[3], operands[4], insn);
        !          2119: }"
        !          2120:   [(set_attr "type" "fp")])
        !          2121: 
        !          2122: (define_insn ""
        !          2123:   [(set (match_operand:SI 0 "general_operand" "=g")
        !          2124:        (match_operator 1 "float_conversion"
        !          2125:                [(match_operator 2 "float_binary"
        !          2126:                        [(match_operand 3 "general_operand" "frg")
        !          2127:                         (match_operator 4 "float_conversion"
        !          2128:                                [(match_operand 5 "general_operand" "frg")])])]))
        !          2129:    (clobber (match_operand:SI 6 "reg_0_operand" "=&z"))
        !          2130:    (clobber (match_operand:SI 7 "reg_15_operand" "=&t"))]
        !          2131:   "check_precision (GET_MODE (operands[2]), operands[3], operands[4])"
        !          2132:   "*
        !          2133: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2134:                      operands[3], operands[5], insn);
        !          2135: }"
        !          2136:   [(set_attr "type" "fp")])
        !          2137: 
        !          2138: (define_insn ""
        !          2139:   [(set (match_operand 0 "general_operand" "=frg")
        !          2140:        (match_operator 1 "float_conversion"
        !          2141:                [(match_operator 2 "float_binary"
        !          2142:                        [(match_operand 3 "general_operand" "frg")
        !          2143:                         (match_operator 4 "float_conversion"
        !          2144:                                [(match_operand 5 "general_operand" "frg")])])]))
        !          2145:    (clobber (match_operand:SI 6 "reg_0_operand" "=&z"))
        !          2146:    (clobber (match_operand:SI 7 "reg_15_operand" "=&t"))]
        !          2147:   "check_precision (GET_MODE (operands[2]), operands[3], operands[4])"
        !          2148:   "*
        !          2149: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2150:                      operands[3], operands[5], insn);
        !          2151: }"
        !          2152:   [(set_attr "type" "fp")])
        !          2153: 
        !          2154: (define_insn ""
        !          2155:   [(set (match_operand:SI 0 "general_operand" "=g")
        !          2156:        (match_operator 1 "float_conversion"
        !          2157:                [(match_operator 2 "float_binary"
        !          2158:                        [(match_operator 3 "float_conversion"
        !          2159:                                [(match_operand 4 "general_operand" "frg")])
        !          2160:                         (match_operand 5 "general_operand" "frg")])]))
        !          2161:    (clobber (match_operand:SI 6 "reg_0_operand" "=&z"))
        !          2162:    (clobber (match_operand:SI 7 "reg_15_operand" "=&t"))]
        !          2163:   "check_precision (GET_MODE (operands[2]), operands[4], operands[5])"
        !          2164:   "*
        !          2165: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2166:                      operands[4], operands[5], insn);
        !          2167: }"
        !          2168:   [(set_attr "type" "fp")])
        !          2169: 
        !          2170: (define_insn ""
        !          2171:   [(set (match_operand 0 "general_operand" "=frg")
        !          2172:        (match_operator 1 "float_conversion"
        !          2173:                [(match_operator 2 "float_binary"
        !          2174:                        [(match_operator 3 "float_conversion"
        !          2175:                                [(match_operand 4 "general_operand" "frg")])
        !          2176:                         (match_operand 5 "general_operand" "frg")])]))
        !          2177:    (clobber (match_operand:SI 6 "reg_0_operand" "=&z"))
        !          2178:    (clobber (match_operand:SI 7 "reg_15_operand" "=&t"))]
        !          2179:   "check_precision (GET_MODE (operands[2]), operands[4], operands[5])"
        !          2180:   "*
        !          2181: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2182:                      operands[4], operands[5], insn);
        !          2183: }"
        !          2184:   [(set_attr "type" "fp")])
        !          2185: 
        !          2186: (define_insn ""
        !          2187:   [(set (match_operand:SI 0 "general_operand" "=g")
        !          2188:        (match_operator 1 "float_conversion"
        !          2189:                [(match_operator 2 "float_binary"
        !          2190:                        [(match_operator 3 "float_conversion"
        !          2191:                                [(match_operand 4 "general_operand" "frg")])
        !          2192:                         (match_operator 5 "float_conversion"
        !          2193:                                [(match_operand 6 "general_operand" "frg")])])]))
        !          2194:    (clobber (match_operand:SI 7 "reg_0_operand" "=&z"))
        !          2195:    (clobber (match_operand:SI 8 "reg_15_operand" "=&t"))]
        !          2196:   "check_precision (GET_MODE (operands[2]), operands[4], operands[6])"
        !          2197:   "*
        !          2198: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2199:                      operands[4], operands[6], insn);
        !          2200: }"
        !          2201:   [(set_attr "type" "fp")])
        !          2202: 
        !          2203: (define_insn ""
        !          2204:   [(set (match_operand 0 "general_operand" "=frg")
        !          2205:        (match_operator 1 "float_conversion"
        !          2206:                [(match_operator 2 "float_binary"
        !          2207:                        [(match_operator 3 "float_conversion"
        !          2208:                                [(match_operand 4 "general_operand" "frg")])
        !          2209:                         (match_operator 5 "float_conversion"
        !          2210:                                [(match_operand 6 "general_operand" "frg")])])]))
        !          2211:    (clobber (match_operand:SI 7 "reg_0_operand" "=&z"))
        !          2212:    (clobber (match_operand:SI 8 "reg_15_operand" "=&t"))]
        !          2213:   "check_precision (GET_MODE (operands[2]), operands[4], operands[6])"
        !          2214:   "*
        !          2215: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2216:                      operands[4], operands[6], insn);
        !          2217: }"
        !          2218:   [(set_attr "type" "fp")])
        !          2219: 
        !          2220: ;; Unary floating-point operations.
        !          2221: 
        !          2222: (define_insn ""
        !          2223:   [(set (match_operand 0 "general_operand" "=frg")
        !          2224:        (match_operator 1 "float_unary"
        !          2225:                [(match_operand 2 "general_operand" "frg")]))
        !          2226:    (clobber (match_operand:SI 3 "reg_0_operand" "=&z"))
        !          2227:    (clobber (match_operand:SI 4 "reg_15_operand" "=&t"))]
        !          2228:   "check_precision (GET_MODE (operands[1]), operands[2], 0)"
        !          2229:   "*
        !          2230: { return output_fpop (GET_CODE (operands[1]), operands[0], operands[2],
        !          2231:                      0, insn);
        !          2232: }"
        !          2233:   [(set_attr "type" "fp")])
        !          2234: 
        !          2235: (define_insn ""
        !          2236:   [(set (match_operand 0 "general_operand" "=frg")
        !          2237:        (match_operator 1 "float_unary"
        !          2238:                [(match_operator 2 "float_conversion"
        !          2239:                        [(match_operand 3 "general_operand" "frg")])]))
        !          2240:    (clobber (match_operand:SI 4 "reg_0_operand" "=&z"))
        !          2241:    (clobber (match_operand:SI 5 "reg_15_operand" "=&t"))]
        !          2242:   "check_precision (GET_MODE (operands[1]), operands[3], 0)"
        !          2243:   "*
        !          2244: { return output_fpop (GET_CODE (operands[1]), operands[0], operands[3],
        !          2245:                      0, insn);
        !          2246: }"
        !          2247:   [(set_attr "type" "fp")])
        !          2248: 
        !          2249: (define_insn ""
        !          2250:   [(set (match_operand:SI 0 "general_operand" "=g")
        !          2251:        (match_operator 1 "float_conversion"
        !          2252:                [(match_operator 2 "float_unary"
        !          2253:                        [(match_operand 3 "general_operand" "frg")])]))
        !          2254:    (clobber (match_operand:SI 4 "reg_0_operand" "=&z"))
        !          2255:    (clobber (match_operand:SI 5 "reg_15_operand" "=&t"))]
        !          2256:   "check_precision (GET_MODE (operands[2]), operands[3], 0)"
        !          2257:   "*
        !          2258: { return output_fpop (GET_CODE (operands[2]), operands[0], operands[3],
        !          2259:                      0, insn);
        !          2260: }"
        !          2261:   [(set_attr "type" "fp")])
        !          2262: 
        !          2263: (define_insn ""
        !          2264:   [(set (match_operand 0 "general_operand" "=frg")
        !          2265:        (match_operator 1 "float_conversion"
        !          2266:                [(match_operator 2 "float_unary"
        !          2267:                        [(match_operand 3 "general_operand" "frg")])]))
        !          2268:    (clobber (match_operand:SI 4 "reg_0_operand" "=&z"))
        !          2269:    (clobber (match_operand:SI 5 "reg_15_operand" "=&t"))]
        !          2270:   "check_precision (GET_MODE (operands[2]), operands[3], 0)"
        !          2271:   "*
        !          2272: { return output_fpop (GET_CODE (operands[2]), operands[0], operands[3],
        !          2273:                      0, insn);
        !          2274: }"
        !          2275:   [(set_attr "type" "fp")])
        !          2276: 
        !          2277: (define_insn ""
        !          2278:   [(set (match_operand:SI 0 "general_operand" "=g")
        !          2279:        (match_operator 1 "float_conversion"
        !          2280:                [(match_operator 2 "float_unary"
        !          2281:                        [(match_operator 3 "float_conversion"
        !          2282:                                [(match_operand 4 "general_operand" "frg")])])]))
        !          2283:    (clobber (match_operand:SI 5 "reg_0_operand" "=&z"))
        !          2284:    (clobber (match_operand:SI 6 "reg_15_operand" "=&t"))]
        !          2285:   "check_precision (GET_MODE (operands[2]), operands[4], 0)"
        !          2286:   "*
        !          2287: { return output_fpop (GET_CODE (operands[2]), operands[0], operands[4],
        !          2288:                      0, insn);
        !          2289: }"
        !          2290:   [(set_attr "type" "fp")])
        !          2291: 
        !          2292: (define_insn ""
        !          2293:   [(set (match_operand 0 "general_operand" "=frg")
        !          2294:        (match_operator 1 "float_conversion"
        !          2295:                [(match_operator 2 "float_unary"
        !          2296:                        [(match_operator 3 "float_conversion"
        !          2297:                                [(match_operand 4 "general_operand" "frg")])])]))
        !          2298:    (clobber (match_operand:SI 5 "reg_0_operand" "=&z"))
        !          2299:    (clobber (match_operand:SI 6 "reg_15_operand" "=&t"))]
        !          2300:   "check_precision (GET_MODE (operands[2]), operands[4], 0)"
        !          2301:   "*
        !          2302: { return output_fpop (GET_CODE (operands[2]), operands[0], operands[4],
        !          2303:                      0, insn);
        !          2304: }"
        !          2305:   [(set_attr "type" "fp")])
        !          2306: 
        !          2307: ;; Compare insns are next.  Note that the ROMP has two types of compares,
        !          2308: ;; signed & unsigned, and one type of branch.  Use the routine
        !          2309: ;; `next_insn_tests_no_unsigned' to see which type to use.
        !          2310: (define_expand "tstsi"
        !          2311:   [(set (cc0)
        !          2312:        (match_operand:SI 0 "register_operand" "r"))]
        !          2313:   ""
        !          2314:   "")
        !          2315: 
        !          2316: (define_expand "cmpsi"
        !          2317:   [(set (cc0)
        !          2318:         (compare (match_operand:SI 0 "register_operand" "")
        !          2319:                 (match_operand:SI 1 "reg_or_cint_operand" "")))]
        !          2320:   ""
        !          2321:   "")
        !          2322: 
        !          2323: ;; Signed compare, `test' first.
        !          2324: 
        !          2325: (define_insn ""
        !          2326:   [(set (cc0)
        !          2327:        (match_operand:SI 0 "register_operand" "r"))]
        !          2328:   "next_insn_tests_no_unsigned (insn)"
        !          2329:   "cis %0,0"
        !          2330:   [(set_attr "length" "2")
        !          2331:    (set_attr "type" "compare")])
        !          2332: 
        !          2333: (define_insn ""
        !          2334:   [(set (cc0) (match_operand:SI 0 "register_operand" "r,r,r"))
        !          2335:    (set (match_operand:SI 1 "reg_or_nonsymb_mem_operand" "=0,r,Q")
        !          2336:        (match_dup 0))]
        !          2337:   "next_insn_tests_no_unsigned (insn)"
        !          2338:   "@
        !          2339:    cis %1,0
        !          2340:    nilo %1,%0,65535
        !          2341:    st%M1 %0,%1\;cis %0,0"
        !          2342:   [(set_attr "type" "compare,compare,store")
        !          2343:    (set_attr "length" "2,4,6")
        !          2344:    (set_attr "cc" "compare")])
        !          2345: 
        !          2346: (define_insn ""
        !          2347:   [(set (cc0)
        !          2348:         (compare (match_operand:SI 0 "register_operand" "r,r,r")
        !          2349:                 (match_operand:SI 1 "reg_or_cint_operand" "I,K,r")))]
        !          2350:   "next_insn_tests_no_unsigned (insn)"
        !          2351:   "@
        !          2352:    cis %0,%1
        !          2353:    cil %0,%1
        !          2354:    c %0,%1"
        !          2355:   [(set_attr "length" "2,4,2")
        !          2356:    (set_attr "type" "compare")])
        !          2357: 
        !          2358: ;; Unsigned comparisons, `test' first, again.
        !          2359: (define_insn ""
        !          2360:   [(set (cc0)
        !          2361:        (match_operand:SI 0 "register_operand" "r"))]
        !          2362:   "! next_insn_tests_no_unsigned (insn)"
        !          2363:   "clil %0,0"
        !          2364:   [(set_attr "type" "compare")])
        !          2365: 
        !          2366: (define_insn ""
        !          2367:   [(set (cc0)
        !          2368:         (compare (match_operand:SI 0 "register_operand" "r,r")
        !          2369:                 (match_operand:SI 1 "reg_or_cint_operand" "K,r")))]
        !          2370:   "! next_insn_tests_no_unsigned (insn)"
        !          2371:   "@
        !          2372:    clil %0,%1
        !          2373:    cl %0,%1"
        !          2374:   [(set_attr "length" "4,2")
        !          2375:    (set_attr "type" "compare")])
        !          2376: 
        !          2377: ;; Bit test insn.  Many cases are converted into this by combine.  This
        !          2378: ;; uses the ROMP test bit.
        !          2379: 
        !          2380: (define_insn ""
        !          2381:   [(set (cc0)
        !          2382:        (zero_extract (match_operand:SI 0 "register_operand" "r,r")
        !          2383:                      (const_int 1)
        !          2384:                      (match_operand:SI 1 "reg_or_any_cint_operand" "r,n")))]
        !          2385:   "next_insn_tests_no_inequality (insn)"
        !          2386:   "@
        !          2387:    mttb %0,%1
        !          2388:    mttbi%t1 %0,%S1"
        !          2389:   [(set_attr "length" "2")
        !          2390:    (set_attr "type" "compare")
        !          2391:    (set_attr "cc" "tbit")])
        !          2392: 
        !          2393: ;; Floating-point comparisons.  There are two, equality and order.
        !          2394: ;; The difference will be that a trap for NaN will be given on the orderr
        !          2395: ;; comparisons only.
        !          2396: 
        !          2397: (define_expand "cmpsf"
        !          2398:   [(parallel [(set (cc0) (compare (match_operand:SF 0 "general_operand" "")
        !          2399:                                  (match_operand:SF 1 "general_operand" "")))
        !          2400:              (clobber (reg:SI 0))
        !          2401:              (clobber (reg:SI 15))])]
        !          2402:   ""
        !          2403:   "")
        !          2404: 
        !          2405: (define_expand "cmpdf"
        !          2406:   [(parallel [(set (cc0) (compare (match_operand:DF 0 "general_operand" "")
        !          2407:                                  (match_operand:DF 1 "general_operand" "")))
        !          2408:              (clobber (reg:SI 0))
        !          2409:              (clobber (reg:SI 15))])]
        !          2410:   ""
        !          2411:   "")
        !          2412: 
        !          2413: (define_expand "tstsf"
        !          2414:   [(parallel [(set (cc0) (match_operand:SF 0 "general_operand" ""))
        !          2415:              (clobber (reg:SI 0))
        !          2416:              (clobber (reg:SI 15))])]
        !          2417:   ""
        !          2418:   "")
        !          2419: 
        !          2420: (define_expand "tstdf"
        !          2421:   [(parallel [(set (cc0) (match_operand:DF 0 "general_operand" ""))
        !          2422:              (clobber (reg:SI 0))
        !          2423:              (clobber (reg:SI 15))])]
        !          2424:   ""
        !          2425:   "")
        !          2426: 
        !          2427: ;; There are four cases for compare and two for test.  These correspond
        !          2428: ;; to each input having a floating-point conversion or not.
        !          2429: 
        !          2430: (define_insn ""
        !          2431:   [(set (cc0) (compare (match_operand 0 "general_operand" "frg")
        !          2432:                       (match_operand 1 "general_operand" "frg")))
        !          2433:    (clobber (match_operand:SI 2 "reg_0_operand" "=&z"))
        !          2434:    (clobber (match_operand:SI 3 "reg_15_operand" "=&t"))]
        !          2435:   "GET_MODE (operands[1]) == SFmode || GET_MODE (operands[1]) == DFmode"
        !          2436:   "*
        !          2437: { return output_fpop (next_insn_tests_no_inequality (insn) ? EQ : GE,
        !          2438:                      operands[0], operands[1], 0, insn);
        !          2439: }"
        !          2440:   [(set_attr "type" "fp")
        !          2441:    (set_attr "cc" "compare")])
        !          2442: 
        !          2443: (define_insn ""
        !          2444:   [(set (cc0) (compare (match_operand 0 "general_operand" "frg")
        !          2445:                       (match_operator 1 "float_conversion"
        !          2446:                              [(match_operand 2 "general_operand" "frg")])))
        !          2447:    (clobber (match_operand:SI 3 "reg_0_operand" "=&z"))
        !          2448:    (clobber (match_operand:SI 4 "reg_15_operand" "=&t"))]
        !          2449:   ""
        !          2450:   "*
        !          2451: { return output_fpop (next_insn_tests_no_inequality (insn) ? EQ : GE,
        !          2452:                      operands[0], operands[2], 0, insn);
        !          2453: }"
        !          2454:   [(set_attr "type" "fp")
        !          2455:    (set_attr "cc" "compare")])
        !          2456: 
        !          2457: (define_insn ""
        !          2458:   [(set (cc0) (compare (match_operator 0 "float_conversion"
        !          2459:                              [(match_operand 1 "general_operand" "frg")])
        !          2460:                       (match_operand 2 "general_operand" "frg")))
        !          2461:    (clobber (match_operand:SI 3 "reg_0_operand" "=&z"))
        !          2462:    (clobber (match_operand:SI 4 "reg_15_operand" "=&t"))]
        !          2463:   ""
        !          2464:   "*
        !          2465: { return output_fpop (next_insn_tests_no_inequality (insn) ? EQ : GE,
        !          2466:                      operands[1], operands[2], 0, insn);
        !          2467: }"
        !          2468:   [(set_attr "type" "fp")
        !          2469:    (set_attr "cc" "compare")])
        !          2470: 
        !          2471: (define_insn ""
        !          2472:   [(set (cc0) (compare (match_operator 0 "float_conversion"
        !          2473:                              [(match_operand 1 "general_operand" "frg")])
        !          2474:                       (match_operator 2 "float_conversion"
        !          2475:                              [(match_operand 3 "general_operand" "frg")])))
        !          2476:    (clobber (match_operand:SI 4 "reg_0_operand" "=&z"))
        !          2477:    (clobber (match_operand:SI 5 "reg_15_operand" "=&t"))]
        !          2478:   ""
        !          2479:   "*
        !          2480: { return output_fpop (next_insn_tests_no_inequality (insn) ? EQ : GE,
        !          2481:                      operands[1], operands[3], 0, insn);
        !          2482: }"
        !          2483:   [(set_attr "type" "fp")
        !          2484:    (set_attr "cc" "compare")])
        !          2485: 
        !          2486: (define_insn ""
        !          2487:   [(set (cc0) (match_operand 0 "general_operand" "frg"))
        !          2488:    (clobber (match_operand:SI 1 "reg_0_operand" "=&z"))
        !          2489:    (clobber (match_operand:SI 2 "reg_15_operand" "=&t"))]
        !          2490:   "GET_MODE (operands[0]) == SFmode || GET_MODE (operands[0]) == DFmode"
        !          2491:   "*
        !          2492: { return output_fpop (next_insn_tests_no_inequality (insn) ? EQ : GE,
        !          2493:                      operands[0], immed_real_const_1 (0, 0,
        !          2494:                                                       GET_MODE (operands[0])),
        !          2495:                      0, insn);
        !          2496: }"
        !          2497:   [(set_attr "type" "fp")
        !          2498:    (set_attr "cc" "compare")])
        !          2499: 
        !          2500: (define_insn ""
        !          2501:   [(set (cc0) (match_operator 0 "float_conversion"
        !          2502:                        [(match_operand 1 "general_operand" "frg")]))
        !          2503:    (clobber (match_operand:SI 2 "reg_0_operand" "=&z"))
        !          2504:    (clobber (match_operand:SI 3 "reg_15_operand" "=&t"))]
        !          2505:   ""
        !          2506:   "*
        !          2507: { return output_fpop (next_insn_tests_no_inequality (insn) ? EQ : GE,
        !          2508:                      operands[1], immed_real_const_1 (0, 0,
        !          2509:                                                       GET_MODE (operands[1])),
        !          2510:                      0, insn);
        !          2511: }"
        !          2512:   [(set_attr "type" "fp")
        !          2513:    (set_attr "cc" "compare")])
        !          2514: 
        !          2515: ;; Branch insns.  Unsigned vs. signed have already
        !          2516: ;; been taken care of.  The only insns that need to be concerned about the
        !          2517: ;; test bit are beq and bne because the rest are either always true,
        !          2518: ;; always false, or converted to EQ or NE.
        !          2519: 
        !          2520: ;; For conditional branches, we use `define_expand' and just have two patterns
        !          2521: ;; that match them.  Operand printing does most of the work.
        !          2522: 
        !          2523: (define_expand "beq"
        !          2524:   [(set (pc)
        !          2525:        (if_then_else (eq (cc0)
        !          2526:                          (const_int 0))
        !          2527:                      (label_ref (match_operand 0 "" ""))
        !          2528:                      (pc)))]
        !          2529:   ""
        !          2530:   "")
        !          2531: 
        !          2532: (define_expand "bne"
        !          2533:   [(set (pc)
        !          2534:        (if_then_else (ne (cc0)
        !          2535:                          (const_int 0))
        !          2536:                      (label_ref (match_operand 0 "" ""))
        !          2537:                      (pc)))]
        !          2538:   ""
        !          2539:   "")
        !          2540: 
        !          2541: (define_expand "bgt"
        !          2542:   [(set (pc)
        !          2543:        (if_then_else (gt (cc0)
        !          2544:                          (const_int 0))
        !          2545:                      (label_ref (match_operand 0 "" ""))
        !          2546:                      (pc)))]
        !          2547:   ""
        !          2548:   "")
        !          2549: 
        !          2550: (define_expand "bgtu"
        !          2551:   [(set (pc)
        !          2552:        (if_then_else (gtu (cc0)
        !          2553:                           (const_int 0))
        !          2554:                      (label_ref (match_operand 0 "" ""))
        !          2555:                      (pc)))]
        !          2556:   ""
        !          2557:   "")
        !          2558: 
        !          2559: (define_expand "blt"
        !          2560:   [(set (pc)
        !          2561:        (if_then_else (lt (cc0)
        !          2562:                          (const_int 0))
        !          2563:                      (label_ref (match_operand 0 "" ""))
        !          2564:                      (pc)))]
        !          2565:   ""
        !          2566:   "")
        !          2567: 
        !          2568: (define_expand "bltu"
        !          2569:   [(set (pc)
        !          2570:        (if_then_else (ltu (cc0)
        !          2571:                           (const_int 0))
        !          2572:                      (label_ref (match_operand 0 "" ""))
        !          2573:                      (pc)))]
        !          2574:   ""
        !          2575:   "")
        !          2576: 
        !          2577: (define_expand "bge"
        !          2578:   [(set (pc)
        !          2579:        (if_then_else (ge (cc0)
        !          2580:                          (const_int 0))
        !          2581:                      (label_ref (match_operand 0 "" ""))
        !          2582:                      (pc)))]
        !          2583:   ""
        !          2584:   "")
        !          2585: 
        !          2586: (define_expand "bgeu"
        !          2587:   [(set (pc)
        !          2588:        (if_then_else (geu (cc0)
        !          2589:                           (const_int 0))
        !          2590:                      (label_ref (match_operand 0 "" ""))
        !          2591:                      (pc)))]
        !          2592:   ""
        !          2593:   "")
        !          2594: 
        !          2595: (define_expand "ble"
        !          2596:   [(set (pc)
        !          2597:        (if_then_else (le (cc0)
        !          2598:                          (const_int 0))
        !          2599:                      (label_ref (match_operand 0 "" ""))
        !          2600:                      (pc)))]
        !          2601:   ""
        !          2602:   "")
        !          2603: 
        !          2604: (define_expand "bleu"
        !          2605:   [(set (pc)
        !          2606:        (if_then_else (leu (cc0)
        !          2607:                           (const_int 0))
        !          2608:                      (label_ref (match_operand 0 "" ""))
        !          2609:                      (pc)))]
        !          2610:   ""
        !          2611:   "")
        !          2612: 
        !          2613: ;; Define both directions of branch and return.
        !          2614: 
        !          2615: (define_insn ""
        !          2616:   [(set (pc)
        !          2617:        (if_then_else (match_operator 1 "comparison_operator"
        !          2618:                                      [(cc0) (const_int 0)])
        !          2619:                      (label_ref (match_operand 0 "" ""))
        !          2620:                      (pc)))]
        !          2621:   ""
        !          2622:   "*
        !          2623: {
        !          2624:   if (restore_compare_p (operands[1]))
        !          2625:     return 0;
        !          2626:   else if (get_attr_length (insn) == 2)
        !          2627:     return \"j%j1 %l0\";
        !          2628:   else
        !          2629:     return \"b%j1%# %l0\";
        !          2630: }"
        !          2631:   [(set_attr "type" "branch")])
        !          2632: 
        !          2633: (define_insn ""
        !          2634:   [(set (pc)
        !          2635:        (if_then_else (match_operator 0 "comparison_operator"
        !          2636:                                      [(cc0) (const_int 0)])
        !          2637:                      (return)
        !          2638:                      (pc)))]
        !          2639:   "null_epilogue ()"
        !          2640:   "*
        !          2641: {
        !          2642:   if (restore_compare_p (operands[0]))
        !          2643:     return 0;
        !          2644:   else
        !          2645:     return \"b%j0r%# r15\";
        !          2646: }"
        !          2647:   [(set_attr "type" "return")])
        !          2648: 
        !          2649: (define_insn ""
        !          2650:   [(set (pc)
        !          2651:        (if_then_else (match_operator 1 "comparison_operator"
        !          2652:                                [(cc0) (const_int 0)])
        !          2653:                      (pc)
        !          2654:                      (label_ref (match_operand 0 "" ""))))]
        !          2655:   ""
        !          2656:   "*
        !          2657: {
        !          2658:   if (restore_compare_p (operands[1]))
        !          2659:     return 0;
        !          2660:   else if (get_attr_length (insn) == 2)
        !          2661:     return \"j%J1 %l0\";
        !          2662:   else
        !          2663:     return \"b%J1%# %l0\";
        !          2664: }"
        !          2665:   [(set_attr "type" "branch")])
        !          2666: 
        !          2667: (define_insn ""
        !          2668:   [(set (pc)
        !          2669:        (if_then_else (match_operator 0 "comparison_operator"
        !          2670:                                      [(cc0) (const_int 0)])
        !          2671:                      (pc)
        !          2672:                      (return)))]
        !          2673:   "null_epilogue ()"
        !          2674:   "*
        !          2675: {
        !          2676:   if (restore_compare_p (operands[0]))
        !          2677:     return 0;
        !          2678:   else
        !          2679:     return \"b%J0r%# r15\";
        !          2680: }"
        !          2681:   [(set_attr "type" "return")])
        !          2682: 
        !          2683: ;; Unconditional branch and return.
        !          2684: 
        !          2685: (define_insn "jump"
        !          2686:   [(set (pc)
        !          2687:        (label_ref (match_operand 0 "" "")))]
        !          2688:   ""
        !          2689:   "*
        !          2690: {
        !          2691:   if (get_attr_length (insn) == 2)
        !          2692:     return \"j %l0\";
        !          2693:   else
        !          2694:     return \"b%# %l0\";
        !          2695: }"
        !          2696:   [(set_attr "type" "branch")])
        !          2697: 
        !          2698: (define_insn "return"
        !          2699:   [(return)]
        !          2700:   "null_epilogue ()"
        !          2701:   "br%# r15"
        !          2702:   [(set_attr "type" "return")])
        !          2703: 
        !          2704: (define_insn "indirect_jump"
        !          2705:   [(set (pc) (match_operand:SI 0 "register_operand" "r"))]
        !          2706:   ""
        !          2707:   "br%# %0"
        !          2708:   [(set_attr "type" "branch")
        !          2709:    (set_attr "length" "2")])
        !          2710: 
        !          2711: ;; Table jump for switch statements:
        !          2712: (define_insn "tablejump"
        !          2713:   [(set (pc)
        !          2714:        (match_operand:SI 0 "register_operand" "r"))
        !          2715:    (use (label_ref (match_operand 1 "" "")))]
        !          2716:   ""
        !          2717:   "br%# %0"
        !          2718:   [(set_attr "type" "branch")
        !          2719:    (set_attr "length" "2")])
        !          2720: 
        !          2721: ;;- Local variables:
        !          2722: ;;- mode:emacs-lisp
        !          2723: ;;- comment-start: ";;- "
        !          2724: ;;- eval: (set-syntax-table (copy-sequence (syntax-table)))
        !          2725: ;;- eval: (modify-syntax-entry ?[ "(]")
        !          2726: ;;- eval: (modify-syntax-entry ?] ")[")
        !          2727: ;;- eval: (modify-syntax-entry ?{ "(}")
        !          2728: ;;- eval: (modify-syntax-entry ?} "){")
        !          2729: ;;- End:

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