Annotation of gcc/config/romp/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,ibranch,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,ibranch") (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,ibranch,return,call,multi")
        !            64:         (const_string "no")]
        !            65:        (const_string "yes")))
        !            66: 
        !            67: ;; Whether insn needs a delay slot.  We have to say that two-byte
        !            68: ;; branches do not need a delay slot.  Otherwise, branch shortening will
        !            69: ;; try to do something with delay slot insns (we want it to on the PA).
        !            70: ;; This is a kludge, which should be cleaned up at some point.
        !            71: 
        !            72: (define_attr "needs_delay_slot" "yes,no"
        !            73:   (if_then_else (ior (and (eq_attr "type" "branch")
        !            74:                          (eq_attr "length" "4"))
        !            75:                     (eq_attr "type" "ibranch,return,call"))
        !            76:                (const_string "yes") (const_string "no")))
        !            77: 
        !            78: ;; What insn does to the condition code.
        !            79: 
        !            80: (define_attr "cc"
        !            81:   "clobber,none,sets,change0,copy1to0,compare,tbit"
        !            82:   (cond [(eq_attr "type" "load,loadz")         (const_string "change0")
        !            83:         (eq_attr "type" "store")               (const_string "none")
        !            84:         (eq_attr "type" "fp,call")             (const_string "clobber")
        !            85:         (eq_attr "type" "branch,ibranch,return") (const_string "none")
        !            86:         (eq_attr "type" "address")             (const_string "change0")
        !            87:         (eq_attr "type" "compare")             (const_string "compare")
        !            88:         (eq_attr "type" "arith")               (const_string "sets")]
        !            89:        (const_string "clobber")))
        !            90: 
        !            91: ;; Define attributes for `asm' insns.
        !            92: 
        !            93: (define_asm_attributes [(set_attr "type" "misc")
        !            94:                        (set_attr "length" "8")
        !            95:                        (set_attr "in_delay_slot" "no")
        !            96:                        (set_attr "cc" "clobber")])
        !            97: 
        !            98: ;; Define the delay slot requirements for branches and calls.  We don't have
        !            99: ;; any annulled insns.
        !           100: ;;
        !           101: (define_delay (eq_attr "needs_delay_slot" "yes")
        !           102:   [(eq_attr "in_delay_slot" "yes") (nil) (nil)])
        !           103: 
        !           104: ;; We cannot give a floating-point comparison a delay slot, even though it
        !           105: ;; could make use of it.  This is because it would confuse next_cc0_user
        !           106: ;; to do so.  Other fp insns can't get a delay slow because they set their
        !           107: ;; result and use their input after the delay slot insn is executed.  This
        !           108: ;; isn't what reorg.c expects.  
        !           109: 
        !           110: ;; Define load & store delays.  These were obtained by measurements done by
        !           111: ;; [email protected].
        !           112: ;;
        !           113: ;; In general, the memory unit can support at most two simultaneous operations.
        !           114: ;;
        !           115: ;; Loads take 5 cycles to return the data and can be pipelined up to the
        !           116: ;; limit of two simultaneous operations.
        !           117: (define_function_unit "memory" 1 2 (eq_attr "type" "load,loadz") 5 0)
        !           118: 
        !           119: ;; Stores do not return data, but tie up the memory unit for 2 cycles if the
        !           120: ;; next insn is also a store.
        !           121: (define_function_unit "memory" 1 2 (eq_attr "type" "store") 1 2
        !           122:   [(eq_attr "type" "store")])
        !           123: 
        !           124: ;; Move word instructions.
        !           125: ;;
        !           126: ;; If destination is memory but source is not register, force source to
        !           127: ;; register.
        !           128: ;;
        !           129: ;; If source is a constant that is too large to load in a single insn, build
        !           130: ;; it in two pieces.
        !           131: ;;
        !           132: ;; If destination is memory and source is a register, a temporary register
        !           133: ;; will be needed.  In that case, make a PARALLEL of the SET and a
        !           134: ;; CLOBBER of a SCRATCH to allocate the required temporary.
        !           135: ;;
        !           136: ;; This temporary is ACTUALLY only needed when the destination is a
        !           137: ;; relocatable expression.  For generating RTL, however, we always
        !           138: ;; place the CLOBBER.  In insns where it is not needed, the SCRATCH will
        !           139: ;; not be allocated to a register.
        !           140: ;;
        !           141: ;; Also, avoid creating pseudo-registers or SCRATCH rtx's during reload as
        !           142: ;; they will not be correctly handled.  We never need pseudos for that
        !           143: ;; case anyway.
        !           144: ;;
        !           145: ;; We do not use DEFINE_SPLIT for loading constants because the number
        !           146: ;; of cases in the resulting unsplit insn would be too high to deal
        !           147: ;; with practically.
        !           148: (define_expand "movsi"
        !           149:   [(set (match_operand:SI 0 "general_operand" "")
        !           150:        (match_operand:SI 1 "general_operand" ""))]
        !           151:   ""
        !           152:   "
        !           153: { rtx op0 = operands[0];
        !           154:   rtx op1 = operands[1];
        !           155: 
        !           156:   if (GET_CODE (op1) == REG && REGNO (op1) == 16)
        !           157:     DONE;
        !           158: 
        !           159:   if (GET_CODE (op0) == REG && REGNO (op0) == 16)
        !           160:     DONE;
        !           161: 
        !           162:   if (GET_CODE (op0) == MEM && ! reload_in_progress)
        !           163:     {
        !           164:       emit_insn (gen_storesi (operands[0], force_reg (SImode, operands[1])));
        !           165:       DONE;
        !           166:     }
        !           167:   else if (GET_CODE (op1) == CONST_INT)
        !           168:     {
        !           169:       int const_val = INTVAL (op1);
        !           170: 
        !           171:       /* Try a number of cases to see how to best load the constant.  */
        !           172:       if ((const_val & 0xffff) == 0
        !           173:          || (const_val & 0xffff0000) == 0
        !           174:          || (unsigned) (const_val + 0x8000) < 0x10000)
        !           175:        /* Can do this in one insn, so generate it.  */
        !           176:        ;
        !           177:       else if (((- const_val) & 0xffff) == 0
        !           178:               || ((- const_val) & 0xffff0000) == 0
        !           179:               || (unsigned) ((- const_val) + 0x8000) < 0x10000)
        !           180:        {
        !           181:          /* Can do this by loading the negative constant and then negating. */
        !           182:          emit_move_insn (operands[0],
        !           183:                          gen_rtx (CONST_INT, VOIDmode, - const_val));
        !           184:          emit_insn (gen_negsi2 (operands[0], operands[0]));
        !           185:          DONE;
        !           186:        }
        !           187:       else
        !           188:        /* Do this the long way.  */
        !           189:        {
        !           190:          unsigned int high_part = const_val & 0xffff0000;
        !           191:          unsigned int low_part = const_val & 0xffff;
        !           192:          int i;
        !           193: 
        !           194:          if (low_part >= 0x10 && exact_log2 (low_part) >= 0)
        !           195:            i = high_part, high_part = low_part, low_part = i;
        !           196: 
        !           197:          emit_move_insn (operands[0],
        !           198:                          gen_rtx (CONST_INT, VOIDmode, low_part));
        !           199:          emit_insn (gen_iorsi3 (operands[0], operands[0],
        !           200:                                 gen_rtx (CONST_INT, VOIDmode, high_part)));
        !           201:          DONE;
        !           202:        }
        !           203:     }
        !           204: }")
        !           205: 
        !           206: ;; Move from a symbolic memory location to a register is special.  In this
        !           207: ;; case, we know in advance that the register cannot be r0, so we can improve
        !           208: ;; register allocation by treating it separately.
        !           209: 
        !           210: (define_insn ""
        !           211:   [(set (match_operand:SI 0 "register_operand" "=b")
        !           212:        (match_operand:SI 1 "symbolic_memory_operand" "m"))]
        !           213:   ""
        !           214:   "load %0,%1"
        !           215:   [(set_attr "type" "load")])
        !           216: 
        !           217: ;; Generic single-word move insn.  We avoid the case where the destination is
        !           218: ;; a symbolic address, as that needs a temporary register.
        !           219: 
        !           220: (define_insn ""
        !           221:   [(set (match_operand:SI 0 "reg_or_nonsymb_mem_operand" "=r,r,r,r,r,r,r,r,b,Q")
        !           222:        (match_operand:SI 1 "romp_operand" "rR,I,K,L,M,S,s,Q,m,r"))]
        !           223:   "register_operand (operands[0], SImode)
        !           224:    || register_operand (operands[1], SImode)"
        !           225:   "@
        !           226:    cas %0,%1,r0
        !           227:    lis %0,%1
        !           228:    cal %0,%1(r0)
        !           229:    cal16 %0,%1(r0)
        !           230:    cau %0,%H1(r0)
        !           231:    ail %0,r14,%C1
        !           232:    get %0,$%1
        !           233:    l%M1 %0,%1
        !           234:    load %0,%1
        !           235:    st%M0 %1,%0"
        !           236:   [(set_attr "type" "address,address,address,address,address,arith,misc,load,load,store")
        !           237:    (set_attr "length" "2,2,4,4,4,4,8,*,*,*")])
        !           238: 
        !           239: (define_insn "storesi"
        !           240:   [(set (match_operand:SI 0 "memory_operand" "=Q,m")
        !           241:        (match_operand:SI 1 "register_operand" "r,r"))
        !           242:    (clobber (match_scratch:SI 2 "=X,&b"))]
        !           243:   ""
        !           244:   "@
        !           245:    st%M0 %1,%0
        !           246:    store %1,%0,%2"
        !           247:   [(set_attr "type" "store")])
        !           248: 
        !           249: ;; This pattern is used by reload when we store into a symbolic address.  It
        !           250: ;; provides the temporary register required.  This pattern is only used
        !           251: ;; when SECONDARY_OUTPUT_RELOAD_CLASS returns something other than
        !           252: ;; NO_REGS, so we need not have any predicates here.
        !           253: 
        !           254: (define_expand "reload_outsi"
        !           255:   [(parallel [(set (match_operand:SI 0 "symbolic_memory_operand" "=m")
        !           256:                   (match_operand:SI 1 "" "r"))
        !           257:              (clobber (match_operand:SI 2 "" "=&b"))])]
        !           258:   ""
        !           259:   "")
        !           260: 
        !           261: ;; Now do the same for the QI move instructions.
        !           262: (define_expand "movqi"
        !           263:   [(set (match_operand:QI 0 "general_operand" "")
        !           264:        (match_operand:QI 1 "general_operand" ""))]
        !           265:   ""
        !           266:   "
        !           267: { rtx op0 = operands[0];
        !           268: 
        !           269:   if (GET_CODE (op0) == MEM && ! reload_in_progress)
        !           270:     {
        !           271:       emit_insn (gen_storeqi (operands[0], force_reg (QImode, operands[1])));
        !           272:       DONE;
        !           273:     }
        !           274: }")
        !           275: 
        !           276: (define_insn ""
        !           277:   [(set (match_operand:QI 0 "register_operand" "=b")
        !           278:        (match_operand:QI 1 "symbolic_memory_operand" "m"))]
        !           279:   "" 
        !           280:   "loadc %0,%1"
        !           281:   [(set_attr "type" "load")])
        !           282: 
        !           283: (define_insn ""
        !           284:   [(set (match_operand:QI 0 "reg_or_nonsymb_mem_operand" "=r,r,r,r,r,b,Q")
        !           285:        (match_operand:QI 1 "romp_operand" "r,I,n,s,Q,m,r"))]
        !           286:   "register_operand (operands[0], QImode)
        !           287:    || register_operand (operands[1], QImode)"
        !           288:   "@
        !           289:    cas %0,%1,r0
        !           290:    lis %0,%1
        !           291:    cal %0,%L1(r0)
        !           292:    get %0,$%1
        !           293:    lc%M1 %0,%1
        !           294:    loadc %0,%1
        !           295:    stc%M0 %1,%0"
        !           296:   [(set_attr "type" "address,address,address,misc,load,load,store")
        !           297:    (set_attr "length" "2,2,4,8,*,*,*")])
        !           298: 
        !           299: (define_insn "storeqi"
        !           300:   [(set (match_operand:QI 0 "memory_operand" "=Q,m")
        !           301:        (match_operand:QI 1 "register_operand" "r,r"))
        !           302:    (clobber (match_scratch:SI 2 "=X,&b"))]
        !           303:   ""
        !           304:   "@
        !           305:    stc%M0 %1,%0
        !           306:    storec %1,%0,%2"
        !           307:   [(set_attr "type" "store")])
        !           308: 
        !           309: (define_expand "reload_outqi"
        !           310:   [(parallel [(set (match_operand:QI 0 "symbolic_memory_operand" "=m")
        !           311:                   (match_operand:QI 1 "" "r"))
        !           312:              (clobber (match_operand:SI 2 "" "=&b"))])]
        !           313:   ""
        !           314:   "")
        !           315: 
        !           316: ;; Finally, the HI instructions.
        !           317: (define_expand "movhi"
        !           318:   [(set (match_operand:HI 0 "general_operand" "")
        !           319:        (match_operand:HI 1 "general_operand" ""))]
        !           320:   ""
        !           321:   "
        !           322: { rtx op0 = operands[0];
        !           323: 
        !           324:   if (GET_CODE (op0) == MEM && ! reload_in_progress)
        !           325:     {
        !           326:       emit_insn (gen_storehi (operands[0], force_reg (HImode, operands[1])));
        !           327:       DONE;
        !           328:     }
        !           329: }")
        !           330: 
        !           331: (define_insn ""
        !           332:   [(set (match_operand:HI 0 "register_operand" "=b")
        !           333:        (match_operand:HI 1 "symbolic_memory_operand" "m"))]
        !           334:   ""
        !           335:   "loadha %0,%1"
        !           336:   [(set_attr "type" "load")])
        !           337: 
        !           338: (define_insn ""
        !           339:   [(set (match_operand:HI 0 "reg_or_nonsymb_mem_operand" "=r,r,r,r,r,b,Q")
        !           340:        (match_operand:HI 1 "romp_operand" "r,I,n,s,Q,m,r"))]
        !           341:   "register_operand (operands[0], HImode)
        !           342:    || register_operand (operands[1], HImode)"
        !           343:   "@
        !           344:    cas %0,%1,r0
        !           345:    lis %0,%1
        !           346:    cal %0,%L1(r0)
        !           347:    get %0,$%1
        !           348:    lh%N1 %0,%1
        !           349:    loadh %0,%1
        !           350:    sth%M0 %1,%0"
        !           351:   [(set_attr "type" "address,address,address,misc,loadz,loadz,store")
        !           352:    (set_attr "length" "2,2,4,8,*,*,*")])
        !           353: 
        !           354: (define_insn "storehi"
        !           355:   [(set (match_operand:HI 0 "memory_operand" "=Q,m")
        !           356:        (match_operand:HI 1 "register_operand" "r,r"))
        !           357:    (clobber (match_scratch:SI 2 "=X,&b"))]
        !           358:   ""
        !           359:   "@
        !           360:    sth%M0 %1,%0
        !           361:    storeh %1,%0,%2"
        !           362:   [(set_attr "type" "store")])
        !           363: 
        !           364: (define_expand "reload_outhi"
        !           365:   [(parallel [(set (match_operand:HI 0 "symbolic_memory_operand" "=m")
        !           366:                   (match_operand:HI 1 "" "r"))
        !           367:              (clobber (match_operand:SI 2 "" "=&b"))])]
        !           368:   ""
        !           369:   "")
        !           370: 
        !           371: ;; For DI move, if we have a constant, break the operation apart into
        !           372: ;; two SImode moves because the optimizer may be able to do a better job
        !           373: ;; with the resulting code.
        !           374: ;;
        !           375: ;; For memory stores, make the required pseudo for a temporary in case we
        !           376: ;; are storing into an absolute address.
        !           377: ;;
        !           378: ;; We need to be careful about the cases where the output is a register that is
        !           379: ;; the second register of the input.
        !           380: 
        !           381: (define_expand "movdi"
        !           382:   [(set (match_operand:DI 0 "general_operand" "")
        !           383:        (match_operand:DI 1 "general_operand" ""))]
        !           384:   ""
        !           385:   "
        !           386: { rtx op0 = operands[0];
        !           387:   rtx op1 = operands[1];
        !           388:  
        !           389:   if (CONSTANT_P (op1))
        !           390:     {
        !           391:       rtx insns;
        !           392: 
        !           393:       start_sequence ();
        !           394:       emit_move_insn (operand_subword (op0, 0, 1, DImode),
        !           395:                      operand_subword (op1, 0, 1, DImode));
        !           396:       emit_move_insn (operand_subword (op0, 1, 1, DImode),
        !           397:                      operand_subword (op1, 1, 1, DImode));
        !           398:       insns = get_insns ();
        !           399:       end_sequence ();
        !           400: 
        !           401:       emit_no_conflict_block (insns, op0, op1, 0, op1);
        !           402:       DONE;
        !           403:     }
        !           404: 
        !           405:   if (GET_CODE (op0) == MEM && ! reload_in_progress)
        !           406:     {
        !           407:       emit_insn (gen_storedi (operands[0], force_reg (DImode, operands[1])));
        !           408:       DONE;
        !           409:     }
        !           410: }")
        !           411: 
        !           412: (define_insn ""
        !           413:  [(set (match_operand:DI 0 "reg_or_nonsymb_mem_operand" "=r,r,r,Q")
        !           414:        (match_operand:DI 1 "reg_or_mem_operand" "r,Q,m,r"))]
        !           415:   "register_operand (operands[0], DImode)
        !           416:    || register_operand (operands[1], DImode)"
        !           417:   "*
        !           418: {
        !           419:   switch (which_alternative)
        !           420:     {
        !           421:     case 0:
        !           422:       if (REGNO (operands[0]) == REGNO (operands[1]) + 1)
        !           423:        return \"cas %O0,%O1,r0\;cas %0,%1,r0\";
        !           424:       else
        !           425:        return \"cas %0,%1,r0\;cas %O0,%O1,r0\";
        !           426:     case 1:
        !           427:       /* Here we must see which word to load first.  We default to the
        !           428:         low-order word unless it occurs in the address.  */
        !           429:       if (refers_to_regno_p (REGNO (operands[0]), REGNO (operands[0]) + 1,
        !           430:                             operands[1], 0))
        !           431:        return \"l%M1 %O0,%O1\;l%M1 %0,%1\";
        !           432:       else
        !           433:        return \"l%M1 %0,%1\;l%M1 %O0,%O1\";
        !           434:     case 2:
        !           435:       return \"get %O0,$%1\;ls %0,0(%O0)\;ls %O0,4(%O0)\";
        !           436:     case 3:
        !           437:       return \"st%M0 %1,%0\;st%M0 %O1,%O0\";
        !           438:     }
        !           439: }"
        !           440:   [(set_attr "type" "multi")
        !           441:    (set_attr "cc" "change0,change0,change0,none")
        !           442:    (set_attr "length" "4,12,8,8")])
        !           443: 
        !           444: (define_insn "storedi"
        !           445:   [(set (match_operand:DI 0 "memory_operand" "=Q,m")
        !           446:        (match_operand:DI 1 "register_operand" "r,r"))
        !           447:    (clobber (match_scratch:SI 2 "=X,&b"))]
        !           448:   ""
        !           449:   "@
        !           450:    st%M0 %1,%0\;st%M0 %O1,%O0
        !           451:    get %2,$%0\;sts %1,0(%2)\;sts %O1,4(%2)"
        !           452:   [(set_attr "type" "multi,multi")
        !           453:    (set_attr "cc" "none,none")
        !           454:    (set_attr "length" "8,12")])
        !           455: 
        !           456: (define_expand "reload_outdi"
        !           457:   [(parallel [(set (match_operand:DI 0 "symbolic_memory_operand" "=m")
        !           458:                   (match_operand:DI 1 "" "r"))
        !           459:              (clobber (match_operand:SI 2 "" "=&b"))])]
        !           460:   ""
        !           461:   "")
        !           462: 
        !           463: ;; Split symbolic memory operands differently.  We first load the address
        !           464: ;; into a register and then do the two loads or stores.  We can only do
        !           465: ;; this if operand_subword won't produce a SUBREG, which is only when
        !           466: ;; operands[0] is a hard register.  Thus, these won't be used during the
        !           467: ;; first insn scheduling pass.
        !           468: (define_split
        !           469:   [(set (match_operand:DI 0 "register_operand" "")
        !           470:        (match_operand:DI 1 "symbolic_memory_operand" ""))]
        !           471:   "GET_CODE (operands[0]) == REG
        !           472:    && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER"
        !           473:   [(set (match_dup 2) (match_dup 3))
        !           474:    (set (match_dup 4) (match_dup 5))
        !           475:    (set (match_dup 6) (match_dup 7))]
        !           476:   "
        !           477: { operands[2] = operand_subword (operands[0], 1, 0, DImode);
        !           478:   operands[3] = XEXP (operands[1], 0);
        !           479:   operands[4] = operand_subword (operands[0], 0, 0, DImode);
        !           480:   operands[5] = gen_rtx (MEM, SImode, operands[2]);
        !           481:   operands[6] = operands[2];
        !           482:   operands[7] = gen_rtx (MEM, SImode,
        !           483:                         gen_rtx (PLUS, SImode, operands[2],
        !           484:                                  gen_rtx (CONST_INT, VOIDmode, 4)));
        !           485: 
        !           486:   if (operands[2] == 0 || operands[4] == 0)
        !           487:     FAIL;
        !           488: }")
        !           489: 
        !           490: (define_split
        !           491:   [(set (match_operand:DI 0 "symbolic_memory_operand" "")
        !           492:        (match_operand:DI 1 "register_operand" ""))
        !           493:    (clobber (match_operand:SI 2 "register_operand" ""))] 
        !           494:   "GET_CODE (operands[0]) == REG
        !           495:    && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER"
        !           496:   [(set (match_dup 2) (match_dup 3))
        !           497:    (set (match_dup 4) (match_dup 5))
        !           498:    (set (match_dup 6) (match_dup 7))]
        !           499:   "
        !           500: { operands[3] = XEXP (operands[0], 0);
        !           501:   operands[4] = gen_rtx (MEM, SImode, operands[2]);
        !           502:   operands[5] = operand_subword (operands[1], 0, 0, DImode);
        !           503:   operands[6] = gen_rtx (MEM, SImode,
        !           504:                         gen_rtx (PLUS, SImode, operands[2],
        !           505:                                  gen_rtx (CONST_INT, VOIDmode, 4)));
        !           506:   operands[7] = operand_subword (operands[1], 1, 0, DImode);
        !           507: 
        !           508:   if (operands[5] == 0 || operands[7] == 0)
        !           509:     FAIL;
        !           510: }")
        !           511: 
        !           512: ;; If the output is a register and the input is memory, we have to be careful
        !           513: ;; and see which word needs to be loaded first.
        !           514: ;;
        !           515: ;; Note that this case doesn't have a CLOBBER.   Therefore, we must either
        !           516: ;; be after reload or operand[0] must not be a MEM.  So we don't need a
        !           517: ;; CLOBBER on the new insns either.
        !           518: ;;
        !           519: ;; Due to a bug in sched.c, we do not want to split this insn if both
        !           520: ;; operands are registers and they overlap unless reload has completed.
        !           521: (define_split
        !           522:   [(set (match_operand:DI 0 "general_operand" "")
        !           523:        (match_operand:DI 1 "general_operand" ""))]
        !           524:   "! symbolic_memory_operand (operands[0], DImode)
        !           525:    && ! symbolic_memory_operand (operands[1], DImode)
        !           526:    && ! (GET_CODE (operands[0]) == REG
        !           527:          && REGNO (operands[0]) >= FIRST_PSEUDO_REGISTER)
        !           528:    && ! (GET_CODE (operands[1]) == REG
        !           529:          && REGNO (operands[1]) >= FIRST_PSEUDO_REGISTER)
        !           530:    && ! (GET_CODE (operands[0]) == REG && GET_CODE (operands[1]) == REG
        !           531:         && ! reload_completed
        !           532:         && reg_overlap_mentioned_p (operands[0], operands[1]))"
        !           533:   [(set (match_dup 2) (match_dup 3))
        !           534:    (set (match_dup 4) (match_dup 5))]
        !           535:   "
        !           536: { if (GET_CODE (operands[0]) != REG
        !           537:       || ! refers_to_regno_p (REGNO (operands[0]), REGNO (operands[0]) + 1,
        !           538:                              operands[1], 0))
        !           539:     {
        !           540:       operands[2] = operand_subword (operands[0], 0, 0, DImode);
        !           541:       operands[3] = operand_subword (operands[1], 0, 0, DImode);
        !           542:       operands[4] = operand_subword (operands[0], 1, 0, DImode);
        !           543:       operands[5] = operand_subword (operands[1], 1, 0, DImode);
        !           544:     }
        !           545:   else
        !           546:     {
        !           547:       operands[2] = operand_subword (operands[0], 1, 0, DImode);
        !           548:       operands[3] = operand_subword (operands[1], 1, 0, DImode);
        !           549:       operands[4] = operand_subword (operands[0], 0, 0, DImode);
        !           550:       operands[5] = operand_subword (operands[1], 0, 0, DImode);
        !           551:     }
        !           552: 
        !           553:   if (operands[2] == 0 || operands[3] == 0
        !           554:       || operands[4] == 0 || operands[5] == 0)
        !           555:     FAIL;
        !           556: }")
        !           557: 
        !           558: (define_split
        !           559:  [(set (match_operand:DI 0 "general_operand" "")
        !           560:        (match_operand:DI 1 "general_operand" ""))
        !           561:   (clobber (match_operand:SI 6 "register_operand" ""))]
        !           562:   "! symbolic_memory_operand (operands[0], DImode)
        !           563:    && ! symbolic_memory_operand (operands[1], DImode)
        !           564:    && ! (GET_CODE (operands[0]) == REG
        !           565:          && REGNO (operands[0]) >= FIRST_PSEUDO_REGISTER)
        !           566:    && ! (GET_CODE (operands[1]) == REG
        !           567:          && REGNO (operands[1]) >= FIRST_PSEUDO_REGISTER)
        !           568:    && ! (GET_CODE (operands[0]) == REG && GET_CODE (operands[1]) == REG
        !           569:         && ! reload_completed
        !           570:         && reg_overlap_mentioned_p (operands[0], operands[1]))"
        !           571:  [(parallel [(set (match_dup 2) (match_dup 3))
        !           572:             (clobber (match_dup 7))])
        !           573:   (parallel [(set (match_dup 4) (match_dup 5))
        !           574:             (clobber (match_dup 8))])]
        !           575:  "
        !           576: { if (GET_CODE (operands[0]) != REG
        !           577:       || ! refers_to_regno_p (REGNO (operands[0]), REGNO (operands[0]) + 1,
        !           578:                              operands[1], 0))
        !           579:     {
        !           580:       operands[2] = operand_subword (operands[0], 0, 0, DImode);
        !           581:       operands[3] = operand_subword (operands[1], 0, 0, DImode);
        !           582:       operands[4] = operand_subword (operands[0], 1, 0, DImode);
        !           583:       operands[5] = operand_subword (operands[1], 1, 0, DImode);
        !           584:     }
        !           585:   else
        !           586:     {
        !           587:       operands[2] = operand_subword (operands[0], 1, 0, DImode);
        !           588:       operands[3] = operand_subword (operands[1], 1, 0, DImode);
        !           589:       operands[4] = operand_subword (operands[0], 0, 0, DImode);
        !           590:       operands[5] = operand_subword (operands[1], 0, 0, DImode);
        !           591:     }
        !           592: 
        !           593:   if (operands[2] == 0 || operands[3] == 0
        !           594:       || operands[4] == 0 || operands[5] == 0)
        !           595:     FAIL;
        !           596: 
        !           597:   /* We must be sure to make two different SCRATCH operands, since they
        !           598:      are not allowed to be shared.  After reload, however, we only have
        !           599:      a SCRATCH if we won't use the operand, so it is allowed to share it
        !           600:      then.  */
        !           601:   if (reload_completed || GET_CODE (operands[6]) != SCRATCH)
        !           602:     operands[7] = operands[8] = operands[6];
        !           603:   else
        !           604:     {
        !           605:       operands[7] = gen_rtx (SCRATCH, SImode);
        !           606:       operands[8] = gen_rtx (SCRATCH, SImode);
        !           607:     }
        !           608: }")
        !           609: 
        !           610: ;; Define move insns for SF, and DF.
        !           611: ;;
        !           612: ;; For register-register copies or a copy of something to itself, emit a
        !           613: ;; single SET insn since it will likely be optimized away.
        !           614: ;;
        !           615: ;; Otherwise, emit a floating-point move operation unless both input and
        !           616: ;; output are either constant, memory, or a non-floating-point hard register.
        !           617: (define_expand "movdf"
        !           618:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !           619:                   (match_operand:DF 1 "general_operand" ""))
        !           620:              (clobber (reg:SI 0))
        !           621:              (clobber (reg:SI 15))])]
        !           622:   ""
        !           623:   "
        !           624: { rtx op0 = operands[0];
        !           625:   rtx op1 = operands[1];
        !           626: 
        !           627:   if (op0 == op1)
        !           628:     {
        !           629:       emit_insn (gen_rtx (SET, VOIDmode, op0, op1));
        !           630:       DONE;
        !           631:     }
        !           632: 
        !           633:   if ((GET_CODE (op0) == MEM
        !           634:        || (GET_CODE (op0) == REG && REGNO (op0) < FIRST_PSEUDO_REGISTER
        !           635:           && ! FP_REGNO_P (REGNO (op0))))
        !           636:       && (GET_CODE (op1) == MEM
        !           637:          || GET_CODE (op1) == CONST_DOUBLE
        !           638:          || (GET_CODE (op1) == REG && REGNO (op1) < FIRST_PSEUDO_REGISTER
        !           639:              && ! FP_REGNO_P (REGNO (op1)) && ! rtx_equal_p (op0, op1))))
        !           640:     {
        !           641:       rtx insns;
        !           642: 
        !           643:       if (GET_CODE (op1) == CONST_DOUBLE)
        !           644:        op1 = force_const_mem (DFmode, op1);
        !           645: 
        !           646:       start_sequence ();
        !           647:       if (GET_CODE (operands[0]) != REG
        !           648:          || ! refers_to_regno_p (REGNO (operands[0]), REGNO (operands[0]) + 1,
        !           649:                                  operands[1]), 0)
        !           650:        {
        !           651:          emit_move_insn (operand_subword (op0, 0, 1, DFmode),
        !           652:                          operand_subword_force (op1, 0, DFmode));
        !           653:          emit_move_insn (operand_subword (op0, 1, 1, DFmode),
        !           654:                          operand_subword_force (op1, 1, DFmode));
        !           655:        }
        !           656:       else
        !           657:        {
        !           658:          emit_move_insn (operand_subword (op0, 1, 1, DFmode),
        !           659:                          operand_subword_force (op1, 1, DFmode));
        !           660:          emit_move_insn (operand_subword (op0, 0, 1, DFmode),
        !           661:                          operand_subword_force (op1, 0, DFmode));
        !           662:        }
        !           663: 
        !           664:       insns = get_insns ();
        !           665:       end_sequence ();
        !           666: 
        !           667:       emit_no_conflict_block (insns, op0, op1, 0, op1);
        !           668:       DONE;
        !           669:     }
        !           670: }")
        !           671: 
        !           672: (define_expand "movsf"
        !           673:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !           674:                   (match_operand:SF 1 "general_operand" ""))
        !           675:              (clobber (reg:SI 0))
        !           676:              (clobber (reg:SI 15))])]
        !           677:   ""
        !           678:   "
        !           679: { rtx op0 = operands[0];
        !           680:   rtx op1 = operands[1];
        !           681:   
        !           682:   if (op0 == op1)
        !           683:     {
        !           684:       emit_insn (gen_rtx (SET, VOIDmode, op0, op1));
        !           685:       DONE;
        !           686:     }
        !           687: 
        !           688:   if ((GET_CODE (op0) == MEM
        !           689:        || (GET_CODE (op0) == REG && REGNO (op0) < FIRST_PSEUDO_REGISTER
        !           690:           && ! FP_REGNO_P (REGNO (op0))))
        !           691:        && (GET_CODE (op1) == MEM
        !           692:           || GET_CODE (op1) == CONST_DOUBLE
        !           693:           || (GET_CODE (op1) == REG && REGNO (op1) < FIRST_PSEUDO_REGISTER
        !           694:               && ! FP_REGNO_P (REGNO (op1)))))
        !           695:     {
        !           696:       rtx last;
        !           697: 
        !           698:       if (GET_CODE (op1) == CONST_DOUBLE)
        !           699:        op1 = force_const_mem (SFmode, op1);
        !           700: 
        !           701:       last = emit_move_insn (operand_subword (op0, 0, 1, SFmode),
        !           702:                             operand_subword_force (op1, 0, SFmode));
        !           703: 
        !           704:       REG_NOTES (last) = gen_rtx (EXPR_LIST, REG_EQUAL, op1, REG_NOTES (last));
        !           705:       DONE;
        !           706:     }
        !           707: }")
        !           708: 
        !           709: ;; Define the move insns for SF and DF.  Check for all general regs
        !           710: ;; in the FP insns and make them non-FP if so.  Do the same if the input and
        !           711: ;; output are the same (the insn will be deleted in this case and we don't
        !           712: ;; want to think there are FP insns when there might not be).
        !           713: (define_insn ""
        !           714:   [(set (match_operand:SF 0 "general_operand" "=*frg")
        !           715:        (match_dup 0))]
        !           716:   ""
        !           717:   "nopr r0"
        !           718:   [(set_attr "type" "address")
        !           719:    (set_attr "length" "2")])
        !           720: 
        !           721: (define_insn ""
        !           722:   [(set (match_operand:SF 0 "general_operand" "=r,*fr,r,r,Q,m,frg")
        !           723:        (match_operand:SF 1 "general_operand" "r,0,Q,m,r,r,frg"))
        !           724:    (clobber (match_operand:SI 2 "reg_0_operand" "=&z,z,z,z,z,z,z"))
        !           725:    (clobber (match_operand:SI 3 "reg_15_operand" "=&t,t,t,t,t,t,t"))]
        !           726:   ""
        !           727:   "*
        !           728: { switch (which_alternative)
        !           729:     {
        !           730:     case 0:
        !           731:       return \"cas %0,%1,r0\";
        !           732:     case 1:
        !           733:       return \"nopr r0\";
        !           734:     case 2:
        !           735:       return \"l%M1 %0,%1\";
        !           736:     case 3:
        !           737:       return \"load %0,%1\";
        !           738:     case 4:
        !           739:       return \"st%M0 %1,%0\";
        !           740:     case 5:
        !           741:       return \"store %1,%0,%3\";
        !           742:     default:
        !           743:       return output_fpop (SET, operands[0], operands[1], 0, insn);
        !           744:     }
        !           745: }"
        !           746:   [(set_attr "type" "address,address,load,load,store,store,fp")
        !           747:    (set_attr "length" "2,2,*,*,*,*,*")])
        !           748: 
        !           749: (define_insn ""
        !           750:   [(set (match_operand:DF 0 "general_operand" "=*frg")
        !           751:        (match_dup 0))]
        !           752:   ""
        !           753:   "nopr r0"
        !           754:   [(set_attr "type" "address")
        !           755:    (set_attr "length" "2")])
        !           756: 
        !           757: (define_insn ""
        !           758:   [(set (match_operand:DF 0 "general_operand" "=r,*fr,r,r,Q,m,frg")
        !           759:        (match_operand:DF 1 "general_operand" "r,0,Q,m,r,r,*frg"))
        !           760:    (clobber (match_operand:SI 2 "reg_0_operand" "=&z,z,z,z,z,z,z"))
        !           761:    (clobber (match_operand:SI 3 "reg_15_operand" "=&t,t,t,t,t,t,t"))]
        !           762:   ""
        !           763:   "*
        !           764: { switch (which_alternative)
        !           765:     {
        !           766:     case 0:
        !           767:       if (REGNO (operands[0]) == REGNO (operands[1]) + 1)
        !           768:        return \"cas %O0,%O1,r0\;cas %0,%1,r0\";
        !           769:       else
        !           770:        return \"cas %0,%1,r0\;cas %O0,%O1,r0\";
        !           771:     case 1:
        !           772:       return \"nopr r0\";
        !           773:     case 2:
        !           774:       /* Here we must see which word to load first.  We default to the
        !           775:         low-order word unless it occurs in the address.  */
        !           776:       if (refers_to_regno_p (REGNO (operands[0]), REGNO (operands[0]) + 1,
        !           777:                             operands[1], 0))
        !           778:        return \"l%M1 %O0,%O1\;l%M1 %0,%1\";
        !           779:       else
        !           780:        return \"l%M1 %0,%1\;l%M1 %O0,%O1\";
        !           781:     case 3:
        !           782:       return \"get %3,$%1\;ls %0,0(%3)\;ls %O0,4(%3)\";
        !           783:     case 4:
        !           784:       return \"st%M0 %1,%0\;st%M0 %O1,%O0\";
        !           785:     case 5:
        !           786:       return \"get %3,$%0\;sts %1,0(%3)\;sts %O1,4(%3)\";
        !           787:     default:
        !           788:       return output_fpop (SET, operands[0], operands[1], 0, insn);
        !           789:     }
        !           790: }"
        !           791:   [(set_attr "type" "address,multi,multi,multi,multi,multi,fp")
        !           792:    (set_attr "length" "2,4,*,*,*,*,*")])
        !           793: 
        !           794: ;; Split all the above cases that involve multiple insns and no floating-point
        !           795: ;; data block.  If before reload, we can make a SCRATCH.  Otherwise, use
        !           796: ;; register 15.
        !           797: 
        !           798: (define_split
        !           799:   [(set (match_operand:DF 0 "register_operand" "")
        !           800:        (match_operand:DF 1 "symbolic_memory_operand" ""))
        !           801:    (clobber (reg:SI 0))
        !           802:    (clobber (reg:SI 15))]
        !           803:   "GET_CODE (operands[0]) == REG && REGNO (operands[0]) < 16"
        !           804:   [(set (reg:SI 15) (match_dup 2))
        !           805:    (set (match_dup 3) (match_dup 4))
        !           806:    (set (match_dup 5) (match_dup 6))]
        !           807:   "
        !           808: { operands[2] = XEXP (operands[1], 0);
        !           809:   operands[3] = operand_subword (operands[0], 0, 0, DFmode);
        !           810:   operands[4] = gen_rtx (MEM, SImode, gen_rtx (REG, SImode, 15));
        !           811:   operands[5] = operand_subword (operands[0], 1, 0, DFmode);
        !           812:   operands[6] = gen_rtx (MEM, SImode,
        !           813:                         gen_rtx (PLUS, SImode, gen_rtx (REG, SImode, 15),
        !           814:                                  gen_rtx (CONST_INT, VOIDmode, 4)));
        !           815: 
        !           816:   if (operands[3] == 0 || operands[5] == 0)
        !           817:     FAIL;
        !           818: }")
        !           819: 
        !           820: (define_split
        !           821:   [(set (match_operand:DF 0 "symbolic_memory_operand" "")
        !           822:        (match_operand:DF 1 "register_operand" ""))
        !           823:    (clobber (reg:SI 0))
        !           824:    (clobber (reg:SI 15))]
        !           825:   "GET_CODE (operands[1]) == REG && REGNO (operands[1]) < 16"
        !           826:   [(set (reg:SI 15) (match_dup 2))
        !           827:    (set (match_dup 3) (match_dup 4))
        !           828:    (set (match_dup 5) (match_dup 6))]
        !           829:   "
        !           830: { operands[2] = XEXP (operands[0], 0);
        !           831:   operands[3] = gen_rtx (MEM, SImode, gen_rtx (REG, SImode, 15));
        !           832:   operands[4] = operand_subword (operands[1], 0, 0, DFmode);
        !           833:   operands[5] = gen_rtx (MEM, SImode,
        !           834:                         gen_rtx (PLUS, SImode, gen_rtx (REG, SImode, 15),
        !           835:                                  gen_rtx (CONST_INT, VOIDmode, 4)));
        !           836:   operands[6] = operand_subword (operands[1], 1, 0, DFmode);
        !           837: 
        !           838:   if (operands[4] == 0 || operands[6] == 0)
        !           839:     FAIL;
        !           840: }")
        !           841: 
        !           842: ;; If the output is a register and the input is memory, we have to be careful
        !           843: ;; and see which word needs to be loaded first.  We also cannot to the
        !           844: ;; split if the input is a constant because it would result in invalid
        !           845: ;; insns.  When the output is a MEM, we must put a CLOBBER on each of the
        !           846: ;; resulting insn, when it is not a MEM, we must not.
        !           847: (define_split
        !           848:   [(set (match_operand:DF 0 "memory_operand" "")
        !           849:        (match_operand:DF 1 "register_operand" ""))
        !           850:    (clobber (reg:SI 0))
        !           851:    (clobber (reg:SI 15))]
        !           852:   "GET_CODE (operands[1]) == REG && REGNO (operands[1]) < 15"
        !           853:   [(parallel [(set (match_dup 2) (match_dup 3))
        !           854:              (clobber (match_dup 6))])
        !           855:    (parallel [(set (match_dup 4) (match_dup 5))
        !           856:              (clobber (match_dup 7))])]
        !           857:   "
        !           858: { operands[2] = operand_subword (operands[0], 0, 0, DFmode);
        !           859:   operands[3] = operand_subword (operands[1], 0, 0, DFmode);
        !           860:   operands[4] = operand_subword (operands[0], 1, 0, DFmode);
        !           861:   operands[5] = operand_subword (operands[1], 1, 0, DFmode);
        !           862: 
        !           863:   if (operands[2] == 0 || operands[3] == 0
        !           864:       || operands[4] == 0 || operands[5] == 0)
        !           865:     FAIL;
        !           866: 
        !           867:   if (reload_completed)
        !           868:     operands[6] = operands[7] = gen_rtx (REG, SImode, 15);
        !           869:   else
        !           870:     {
        !           871:       operands[6] = gen_rtx (SCRATCH, SImode);
        !           872:       operands[7] = gen_rtx (SCRATCH, SImode);
        !           873:     }
        !           874: }")
        !           875: 
        !           876: (define_split
        !           877:   [(set (match_operand:DF 0 "nonmemory_operand" "")
        !           878:        (match_operand:DF 1 "general_operand" ""))
        !           879:    (clobber (reg:SI 0))
        !           880:    (clobber (reg:SI 15))]
        !           881:   "! symbolic_memory_operand (operands[1], DFmode)
        !           882:    && GET_CODE (operands[1]) != CONST_DOUBLE
        !           883:    && (GET_CODE (operands[0]) != REG || REGNO (operands[0]) < 15)
        !           884:    && (GET_CODE (operands[1]) != REG || REGNO (operands[1]) < 15)
        !           885:    && (GET_CODE (operands[0]) == REG || GET_CODE (operands[1]) == REG)
        !           886:    && ! (GET_CODE (operands[0]) == REG && GET_CODE (operands[1]) == REG
        !           887:         && ! reload_completed
        !           888:         && reg_overlap_mentioned_p (operands[0], operands[1]))"
        !           889:   [(set (match_dup 2) (match_dup 3))
        !           890:    (set (match_dup 4) (match_dup 5))]
        !           891:   "
        !           892: { if (GET_CODE (operands[0]) != REG
        !           893:       || ! refers_to_regno_p (REGNO (operands[0]), REGNO (operands[0]) + 1,
        !           894:                              operands[1], 0))
        !           895:     {
        !           896:       operands[2] = operand_subword (operands[0], 0, 0, DFmode);
        !           897:       operands[3] = operand_subword (operands[1], 0, 0, DFmode);
        !           898:       operands[4] = operand_subword (operands[0], 1, 0, DFmode);
        !           899:       operands[5] = operand_subword (operands[1], 1, 0, DFmode);
        !           900:     }
        !           901:   else
        !           902:     {
        !           903:       operands[2] = operand_subword (operands[0], 1, 0, DFmode);
        !           904:       operands[3] = operand_subword (operands[1], 1, 0, DFmode);
        !           905:       operands[4] = operand_subword (operands[0], 0, 0, DFmode);
        !           906:       operands[5] = operand_subword (operands[1], 0, 0, DFmode);
        !           907:     }
        !           908: 
        !           909:   if (operands[2] == 0 || operands[3] == 0
        !           910:       || operands[4] == 0 || operands[5] == 0)
        !           911:     FAIL;
        !           912: }")
        !           913: 
        !           914: ;; Conversions from one integer mode to another.
        !           915: ;; It is possible sometimes to sign- or zero-extend while fetching from memory.
        !           916: ;;
        !           917: ;; First, sign-extensions:
        !           918: (define_expand "extendhisi2"
        !           919:   [(set (match_operand:SI 0 "register_operand" "")
        !           920:        (sign_extend:SI (match_operand:HI 1 "register_operand" "")))]
        !           921:   ""
        !           922:   "")
        !           923: 
        !           924: (define_insn ""
        !           925:   [(set (match_operand:SI 0 "register_operand" "=b")
        !           926:        (sign_extend:SI (match_operand:HI 1 "symbolic_memory_operand" "m")))]
        !           927:   ""
        !           928:   "loadha %0,%1"
        !           929:   [(set_attr "type" "load")])
        !           930: 
        !           931: (define_insn ""
        !           932:   [(set (match_operand:SI 0 "register_operand" "=r,r,b")
        !           933:        (sign_extend:SI (match_operand:HI 1 "nonimmediate_operand" "r,Q,m")))]
        !           934:   ""
        !           935:   "@
        !           936:    exts %0,%1
        !           937:    lha%M1 %0,%1
        !           938:    loadha %0,%1"
        !           939:   [(set_attr "type" "arith,load,load")
        !           940:    (set_attr "length" "2,*,*")])
        !           941: 
        !           942: (define_expand "extendqisi2"
        !           943:   [(set (match_dup 2)
        !           944:        (ashift:SI (match_operand:QI 1 "register_operand" "")
        !           945:                   (const_int 24)))
        !           946:    (set (match_operand:SI 0 "register_operand" "")
        !           947:        (ashiftrt:SI (match_dup 2)
        !           948:                     (const_int 24)))]
        !           949:   ""
        !           950:   "
        !           951: { operands[1] = gen_lowpart (SImode, operands[1]);
        !           952:   operands[2] = gen_reg_rtx (SImode); }")
        !           953: 
        !           954: (define_expand "extendqihi2"
        !           955:   [(set (match_dup 2)
        !           956:        (ashift:SI (match_operand:QI 1 "register_operand" "")
        !           957:                   (const_int 24)))
        !           958:    (set (match_operand:HI 0 "register_operand" "")
        !           959:        (ashiftrt:SI (match_dup 2)
        !           960:                     (const_int 24)))]
        !           961:   ""
        !           962:   "
        !           963: { operands[0] = gen_lowpart (SImode, operands[0]);
        !           964:   operands[1] = gen_lowpart (SImode, operands[1]);
        !           965:   operands[2] = gen_reg_rtx (SImode); }")
        !           966: 
        !           967: ;; Define peepholes to eliminate an instruction when we are doing a sign
        !           968: ;; extension but cannot clobber the input.
        !           969: ;;
        !           970: ;; In this case we will shift left 24 bits, but need a copy first.  The shift
        !           971: ;; can be replaced by a "mc03" instruction, but this can only be done if
        !           972: ;; followed by the right shift of 24 or more bits.
        !           973: (define_peephole
        !           974:   [(set (match_operand:SI 0 "register_operand" "")
        !           975:        (subreg:SI (match_operand:QI 1 "register_operand" "") 0))
        !           976:    (set (match_dup 0)
        !           977:        (ashift:SI (match_dup 0)
        !           978:                   (const_int 24)))
        !           979:    (set (match_dup 0)
        !           980:        (ashiftrt:SI (match_dup 0)
        !           981:                     (match_operand:SI 2 "const_int_operand" "")))]
        !           982:   "INTVAL (operands[2]) >= 24"
        !           983:   "mc03 %0,%1\;sari16 %0,%S2"
        !           984:  [(set_attr "type" "multi")
        !           985:   (set_attr "length" "4")
        !           986:   (set_attr "cc" "sets")])
        !           987: 
        !           988: ;; Now zero extensions:
        !           989: (define_expand "zero_extendhisi2"
        !           990:   [(set (match_operand:SI 0 "register_operand" "")
        !           991:        (zero_extend:SI (match_operand:HI 1 "register_operand" "")))]
        !           992:   ""
        !           993:   "")
        !           994: 
        !           995: (define_insn ""
        !           996:   [(set (match_operand:SI 0 "register_operand" "=b")
        !           997:        (zero_extend:SI (match_operand:HI 1 "symbolic_memory_operand" "m")))]
        !           998:   ""
        !           999:   "loadh %0,%1"
        !          1000:   [(set_attr "type" "load")])
        !          1001: 
        !          1002: (define_insn ""
        !          1003:   [(set (match_operand:SI 0 "register_operand" "=r,r,b")
        !          1004:        (zero_extend:SI (match_operand:HI 1 "nonimmediate_operand" "r,Q,m")))]
        !          1005:   ""
        !          1006:   "@
        !          1007:    nilz %0,%1,65535
        !          1008:    lh%N1 %0,%1
        !          1009:    loadh %0,%1"
        !          1010:   [(set_attr "type" "arith,loadz,load")])
        !          1011: 
        !          1012: (define_expand "zero_extendqisi2"
        !          1013:   [(set (match_operand:SI 0 "register_operand" "")
        !          1014:        (zero_extend:SI (match_operand:QI 1 "register_operand" "")))]
        !          1015:   ""
        !          1016:   "")
        !          1017: 
        !          1018: (define_insn ""
        !          1019:   [(set (match_operand:SI 0 "register_operand" "=b")
        !          1020:        (zero_extend:SI (match_operand:QI 1 "symbolic_memory_operand" "m")))]
        !          1021:   ""
        !          1022:   "loadc %0,%1"
        !          1023:   [(set_attr "type" "load")])
        !          1024: 
        !          1025: (define_insn ""
        !          1026:   [(set (match_operand:SI 0 "register_operand" "=r,r,b")
        !          1027:        (zero_extend:SI (match_operand:QI 1 "nonimmediate_operand" "r,Q,m")))]
        !          1028:   ""
        !          1029:   "@
        !          1030:    nilz %0,%1,255
        !          1031:    lc%M1 %0,%1
        !          1032:    loadc %0,%1"
        !          1033:   [(set_attr "type" "arith,load,load")])
        !          1034: 
        !          1035: (define_expand "zero_extendqihi2"
        !          1036:   [(set (match_operand:HI 0 "register_operand" "")
        !          1037:        (zero_extend:HI (match_operand:QI 1 "register_operand" "")))]
        !          1038:   ""
        !          1039:   "")
        !          1040: 
        !          1041: (define_insn ""
        !          1042:   [(set (match_operand:HI 0 "register_operand" "=b")
        !          1043:        (zero_extend:HI (match_operand:QI 1 "symbolic_memory_operand" "m")))]
        !          1044:   ""
        !          1045:   "loadc %0,%1"
        !          1046:   [(set_attr "type" "load")])
        !          1047: 
        !          1048: (define_insn ""
        !          1049:   [(set (match_operand:HI 0 "register_operand" "=r,r,b")
        !          1050:        (zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "r,Q,m")))]
        !          1051:   ""
        !          1052:   "@
        !          1053:    nilz %0,%1,255
        !          1054:    lc%M1 %0,%1
        !          1055:    loadc %0,%1"
        !          1056:   [(set_attr "type" "arith,load,load")])
        !          1057: 
        !          1058: ;; Various extract and insertion operations.
        !          1059: (define_expand "extzv"
        !          1060:   [(set (match_operand:SI 0 "register_operand" "")
        !          1061:        (zero_extract:SI (match_operand:SI 1 "register_operand" "")
        !          1062:                         (match_operand:SI 2 "const_int_operand" "")
        !          1063:                         (match_operand:SI 3 "const_int_operand" "")))]
        !          1064:   ""
        !          1065:   "
        !          1066: {
        !          1067:   if (GET_CODE (operands[2]) != CONST_INT || INTVAL (operands[2]) != 8)
        !          1068:     FAIL;
        !          1069: 
        !          1070:   if (GET_CODE (operands[3]) != CONST_INT)
        !          1071:     FAIL;
        !          1072: 
        !          1073:   if (INTVAL (operands[3]) != 0 && INTVAL (operands[3]) != 8
        !          1074:       && INTVAL (operands[3]) != 16 && INTVAL (operands[3]) != 24)
        !          1075:     FAIL;
        !          1076: }")
        !          1077: 
        !          1078: (define_insn ""
        !          1079:   [(set (match_operand:SI 0 "register_operand" "=&r")
        !          1080:        (zero_extract:SI (match_operand:SI 1 "register_operand" "r")
        !          1081:                         (const_int 8)
        !          1082:                         (match_operand:SI 2 "const_int_operand" "n")))]
        !          1083:   "(INTVAL (operands[2]) & 7) == 0"
        !          1084:   "lis %0,0\;mc3%B2 %0,%1"
        !          1085:   [(set_attr "type" "multi")
        !          1086:    (set_attr "cc" "change0")])
        !          1087: 
        !          1088: (define_split
        !          1089:   [(set (match_operand:SI 0 "register_operand" "=&r")
        !          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:   [(set (match_dup 0) (const_int 0))
        !          1095:    (set (zero_extract:SI (match_dup 0) (const_int 8) (const_int 24))
        !          1096:        (zero_extract:SI (match_dup 1) (const_int 8) (match_dup 2)))]
        !          1097:   "")
        !          1098: 
        !          1099: (define_insn ""
        !          1100:   [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "+r")
        !          1101:                         (const_int 8)
        !          1102:                         (const_int 24))
        !          1103:        (zero_extract:SI (match_operand:SI 1 "register_operand" "r")
        !          1104:                         (const_int 8)
        !          1105:                         (match_operand:SI 2 "const_int_operand" "n")))]
        !          1106:   "(INTVAL (operands[2]) & 7) == 0"
        !          1107:   "mc3%B2 %0,%1"
        !          1108:   [(set_attr "type" "address")
        !          1109:    (set_attr "length" "2")])
        !          1110: 
        !          1111: (define_expand "insv"
        !          1112:   [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "")
        !          1113:                         (match_operand:SI 1 "const_int_operand" "")
        !          1114:                         (match_operand:SI 2 "const_int_operand" ""))
        !          1115:        (match_operand:SI 3 "register_operand" ""))]
        !          1116:   ""
        !          1117:   "
        !          1118: {
        !          1119:   if (GET_CODE (operands[2]) != CONST_INT)
        !          1120:     FAIL;
        !          1121: 
        !          1122:   if (GET_CODE (operands[1]) != CONST_INT)
        !          1123:     FAIL;
        !          1124: 
        !          1125:   if (INTVAL (operands[1]) == 1)
        !          1126:     {
        !          1127:       emit_insn (gen_bit_insv (operands[0], operands[1], operands[2],
        !          1128:                               operands[3]));
        !          1129:       DONE;
        !          1130:     }
        !          1131:   else if (INTVAL (operands[1]) == 8
        !          1132:           && (INTVAL (operands[2]) % 8 == 0))
        !          1133:     ;                          /* Accept aligned byte-wide field. */
        !          1134:   else
        !          1135:     FAIL;
        !          1136: }")
        !          1137: 
        !          1138: ;; For a single-bit insert, it is better to explicitly generate references
        !          1139: ;; to the T bit.  We will call the T bit "CC0" because it can be clobbered
        !          1140: ;; by some CC0 sets (single-bit tests).
        !          1141: 
        !          1142: (define_expand "bit_insv"
        !          1143:   [(set (cc0)
        !          1144:        (zero_extract:SI (match_operand:SI 3 "register_operand" "")
        !          1145:                         (const_int 1)
        !          1146:                         (const_int 31)))
        !          1147:    (parallel [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "")
        !          1148:                                    (match_operand:SI 1 "const_int_operand" "")
        !          1149:                                    (match_operand:SI 2 "const_int_operand" ""))
        !          1150:                   (ne (cc0) (const_int 0)))
        !          1151:              (clobber (match_scratch:SI 4 ""))])]
        !          1152:   ""
        !          1153:   "")
        !          1154:        
        !          1155: (define_insn ""
        !          1156:   [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "+r")
        !          1157:                         (const_int 8)
        !          1158:                         (match_operand:SI 1 "const_int_operand" "n"))
        !          1159:        (match_operand:SI 2 "register_operand" "r"))]
        !          1160:   "(INTVAL (operands[1]) & 7) == 0"
        !          1161:   "mc%B1%.3 %0,%2"
        !          1162:   [(set_attr "type" "address")
        !          1163:    (set_attr "length" "2")])
        !          1164: 
        !          1165: ;; This pattern cannot have any input reloads since if references CC0.
        !          1166: ;; So we have to add code to support memory, which is the only other
        !          1167: ;; thing that a "register_operand" can become.  There is still a problem
        !          1168: ;; if the address isn't valid and *it* needs a reload, but there is no
        !          1169: ;; way to solve that problem, so let's hope it never happens.
        !          1170: 
        !          1171: (define_insn ""
        !          1172:   [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "+r,m")
        !          1173:                         (const_int 1)
        !          1174:                         (match_operand:SI 1 "const_int_operand" "n,m"))
        !          1175:        (ne (cc0) (const_int 0)))
        !          1176:    (clobber (match_scratch:SI 2 "=X,b"))]
        !          1177:   ""
        !          1178:   "@
        !          1179:    mftbi%t1 %0,%S1
        !          1180:    l%M0 %2,%0\;mftb%t1 %2,%S1\;st%M0 %2,%0"
        !          1181:   [(set_attr "type" "*,multi")
        !          1182:    (set_attr "cc" "none,none")
        !          1183:    (set_attr "length" "2,10")])
        !          1184: 
        !          1185: ;; Arithmetic instructions.  First, add and subtract.
        !          1186: ;;
        !          1187: ;; It may be that the second input is either large or small enough that
        !          1188: ;; the operation cannot be done in a single insn.  In that case, emit two.
        !          1189: (define_expand "addsi3"
        !          1190:   [(set (match_operand:SI 0 "register_operand" "")
        !          1191:        (plus:SI (match_operand:SI 1 "register_operand" "")
        !          1192:                 (match_operand:SI 2 "nonmemory_operand" "")))]
        !          1193:   ""
        !          1194:   "
        !          1195: {
        !          1196:   if (GET_CODE (operands[2]) == CONST_INT
        !          1197:       && (unsigned) (INTVAL (operands[2]) + 0x8000) >= 0x10000
        !          1198:       && (INTVAL (operands[2]) & 0xffff) != 0)
        !          1199:     {
        !          1200:       int low = INTVAL (operands[2]) & 0xffff;
        !          1201:       int high = (unsigned) INTVAL (operands[2]) >> 16;
        !          1202: 
        !          1203:       if (low & 0x8000)
        !          1204:        high++, low |= 0xffff0000;
        !          1205: 
        !          1206:       emit_insn (gen_addsi3 (operands[0], operands[1],
        !          1207:                             gen_rtx (CONST_INT, VOIDmode, high << 16)));
        !          1208:       operands[1] = operands[0];
        !          1209:       operands[2] = gen_rtx (CONST_INT, VOIDmode, low);
        !          1210:     }
        !          1211: }")
        !          1212: 
        !          1213: ;; Put the insn to add a symbolic constant to a register separately to
        !          1214: ;; improve register allocation since it has different register requirements.
        !          1215: (define_insn ""
        !          1216:   [(set (match_operand:SI 0 "register_operand" "=b")
        !          1217:        (plus:SI (match_operand:SI 1 "register_operand" "%b")
        !          1218:                 (match_operand:SI 2 "romp_symbolic_operand" "s")))]
        !          1219:    ""
        !          1220:    "get %0,$%2(%1)"
        !          1221:    [(set_attr "type" "address")
        !          1222:     (set_attr "length" "8")])
        !          1223: 
        !          1224: (define_insn ""
        !          1225:   [(set (match_operand:SI 0 "register_operand" "=r,r,r,r,r,r,b")
        !          1226:        (plus:SI (match_operand:SI 1 "reg_or_add_operand" "%0,0,r,b,0,r,b")
        !          1227:                 (match_operand:SI 2 "reg_or_add_operand" "I,J,K,M,r,b,s")))]
        !          1228:   "register_operand (operands[1], SImode)
        !          1229:    || register_operand (operands[2], SImode)"
        !          1230:   "@
        !          1231:    ais %0,%2
        !          1232:    sis %0,%n2
        !          1233:    ail %0,%1,%2
        !          1234:    cau %0,%H2(%1)
        !          1235:    a %0,%2
        !          1236:    cas %0,%1,%2
        !          1237:    get %0,$%2(%1)"
        !          1238:   [(set_attr "type" "arith,arith,arith,address,arith,address,misc")
        !          1239:    (set_attr "length" "2,2,4,4,2,2,8")])
        !          1240: 
        !          1241: ;; Now subtract.
        !          1242: ;;
        !          1243: ;; 1.  If third operand is constant integer, convert it to add of the negative
        !          1244: ;;     of that integer.
        !          1245: ;; 2.  If the second operand is not a valid constant integer, force it into a
        !          1246: ;;     register.
        !          1247: (define_expand "subsi3"
        !          1248:   [(set (match_operand:SI 0 "register_operand" "")
        !          1249:        (minus:SI (match_operand:SI 1 "reg_or_any_cint_operand" "")
        !          1250:                  (match_operand:SI 2 "reg_or_any_cint_operand" "")))]
        !          1251:   ""
        !          1252:   "
        !          1253: {
        !          1254:   if (GET_CODE (operands [2]) == CONST_INT)
        !          1255:     {
        !          1256:       emit_insn (gen_addsi3 (operands[0], operands[1], 
        !          1257:                             gen_rtx (CONST_INT,
        !          1258:                                      VOIDmode, - INTVAL (operands[2]))));
        !          1259:       DONE;
        !          1260:     }
        !          1261:   else
        !          1262:     operands[2] = force_reg (SImode, operands[2]);
        !          1263: 
        !          1264:   if (GET_CODE (operands[1]) != CONST_INT
        !          1265:       || (unsigned) (INTVAL (operands[1]) + 0x8000) >= 0x10000)
        !          1266:     operands[1] = force_reg (SImode, operands[1]);
        !          1267: }")
        !          1268: 
        !          1269: (define_insn ""
        !          1270:   [(set (match_operand:SI 0 "register_operand" "=r,r,r")
        !          1271:        (minus:SI (match_operand:SI 1 "reg_or_D_operand" "K,0,r")
        !          1272:                  (match_operand:SI 2 "register_operand" "r,r,0")))]
        !          1273:   ""
        !          1274:   "@
        !          1275:    sfi %0,%2,%1
        !          1276:    s %0,%2
        !          1277:    sf %0,%1"
        !          1278:   [(set_attr "length" "4,2,2")])
        !          1279: 
        !          1280: ;; Multiply either calls a special RT routine or is done in-line, depending
        !          1281: ;; on the value of a -m flag.
        !          1282: ;;
        !          1283: ;; First define the way we call the subroutine.
        !          1284: (define_expand "mulsi3_subr"
        !          1285:   [(set (reg:SI 2) (match_operand:SI 1 "register_operand" ""))
        !          1286:    (set (reg:SI 3) (match_operand:SI 2 "register_operand" ""))
        !          1287:    (parallel [(set (reg:SI 2) (mult:SI (reg:SI 2) (reg:SI 3)))
        !          1288:              (clobber (reg:SI 0))
        !          1289:              (clobber (reg:SI 15))])
        !          1290:    (set (match_operand:SI 0 "register_operand" "")
        !          1291:        (reg:SI 2))]
        !          1292:   ""
        !          1293:   "")
        !          1294: 
        !          1295: (define_expand "mulsi3"
        !          1296:   [(set (match_operand:SI 0 "register_operand" "")
        !          1297:        (mult:SI (match_operand:SI 1 "register_operand" "")
        !          1298:                 (match_operand:SI 2 "register_operand" "")))]
        !          1299:   ""
        !          1300:   "
        !          1301: {
        !          1302:   if (! TARGET_IN_LINE_MUL)
        !          1303:     {
        !          1304:       emit_insn (gen_mulsi3_subr (operands[0], operands[1], operands[2]));
        !          1305:       DONE;
        !          1306:     }
        !          1307: }")
        !          1308: 
        !          1309: ;; Define the patterns to match.
        !          1310: ;; We would like to provide a delay slot for the insns that call internal
        !          1311: ;; routines, but doing so is risky since reorg will think that the use of
        !          1312: ;; r2 and r3 is completed in the insn needing the delay slot.  Also, it
        !          1313: ;; won't know that the cc will be clobbered.  So take the safe approach
        !          1314: ;; and don't give them delay slots.
        !          1315: (define_insn ""
        !          1316:   [(set (reg:SI 2)
        !          1317:        (mult:SI (reg:SI 2) (reg:SI 3)))
        !          1318:    (clobber (reg:SI 0))
        !          1319:    (clobber (reg:SI 15))]
        !          1320:   "! TARGET_IN_LINE_MUL"
        !          1321:   "bali%# r15,lmul$$"
        !          1322:   [(set_attr "type" "misc")
        !          1323:    (set_attr "in_delay_slot" "no")])
        !          1324: 
        !          1325: (define_insn ""
        !          1326:   [(set (match_operand:SI 0 "register_operand" "=&r")
        !          1327:        (mult:SI (match_operand:SI 1 "register_operand" "%r")
        !          1328:                 (match_operand:SI 2 "register_operand" "r")))]
        !          1329:   "TARGET_IN_LINE_MUL"
        !          1330:   "*
        !          1331: { return output_in_line_mul (); }"
        !          1332:   [(set_attr "length" "38")
        !          1333:    (set_attr "type" "multi")])
        !          1334: 
        !          1335: ;; Handle divide and modulus.  The same function returns both values,
        !          1336: ;; so use divmodsi4.  This divides arg 1 by arg 2 with quotient to go
        !          1337: ;; into arg 0 and remainder in arg 3.
        !          1338: ;;
        !          1339: ;; We want to put REG_EQUAL notes for the two outputs.  So we need a
        !          1340: ;; function to do everything else.
        !          1341: (define_expand "divmodsi4_doit"
        !          1342:   [(set (reg:SI 2)
        !          1343:        (match_operand:SI 0 "register_operand" ""))
        !          1344:    (set (reg:SI 3)
        !          1345:        (match_operand:SI 1 "register_operand" ""))
        !          1346:    (parallel [(set (reg:SI 2) (div:SI (reg:SI 2) (reg:SI 3)))
        !          1347:              (set (reg:SI 3) (mod:SI (reg:SI 2) (reg:SI 3)))
        !          1348:              (clobber (reg:SI 0))
        !          1349:              (clobber (reg:SI 15))])]
        !          1350:   ""
        !          1351:   "")
        !          1352: 
        !          1353: (define_expand "divmodsi4"
        !          1354:   [(parallel [(set (match_operand:SI 0 "register_operand" "")
        !          1355:                   (div:SI (match_operand:SI 1 "register_operand" "")
        !          1356:                           (match_operand:SI 2 "register_operand" "")))
        !          1357:              (set (match_operand:SI 3 "register_operand" "")
        !          1358:                   (mod:SI (match_dup 1) (match_dup 2)))])]
        !          1359:   ""
        !          1360:   "
        !          1361: {
        !          1362:   rtx insn;
        !          1363: 
        !          1364:   emit_insn (gen_divmodsi4_doit (operands[1], operands[2]));
        !          1365:   insn = emit_move_insn (operands[0], gen_rtx (REG, SImode, 2));
        !          1366:   REG_NOTES (insn) = gen_rtx (EXPR_LIST, REG_EQUAL,
        !          1367:                              gen_rtx (DIV, SImode, operands[1],
        !          1368:                                       operands[2]),
        !          1369:                              REG_NOTES (insn));
        !          1370:   insn = emit_move_insn (operands[3], gen_rtx (REG, SImode, 3));
        !          1371:   REG_NOTES (insn) = gen_rtx (EXPR_LIST, REG_EQUAL,
        !          1372:                              gen_rtx (MOD, SImode, operands[1],
        !          1373:                                       operands[2]),
        !          1374:                              REG_NOTES (insn));
        !          1375:   DONE;
        !          1376: }")
        !          1377: 
        !          1378: (define_insn ""
        !          1379:   [(set (reg:SI 2)
        !          1380:        (div:SI (reg:SI 2) (reg:SI 3)))
        !          1381:    (set (reg:SI 3)
        !          1382:        (mod:SI (reg:SI 2) (reg:SI 3)))
        !          1383:    (clobber (reg:SI 0))
        !          1384:    (clobber (reg:SI 15))]
        !          1385:   ""
        !          1386:   "bali%# r15,ldiv$$"
        !          1387:   [(set_attr "type" "misc")
        !          1388:    (set_attr "in_delay_slot" "no")])
        !          1389: 
        !          1390: ;; Similarly for unsigned divide.
        !          1391: (define_expand "udivmodsi4_doit"
        !          1392:   [(set (reg:SI 2)
        !          1393:        (match_operand:SI 0 "register_operand" ""))
        !          1394:    (set (reg:SI 3)
        !          1395:        (match_operand:SI 1 "register_operand" ""))
        !          1396:    (parallel [(set (reg:SI 2) (udiv:SI (reg:SI 2) (reg:SI 3)))
        !          1397:              (set (reg:SI 3) (umod:SI (reg:SI 2) (reg:SI 3)))
        !          1398:              (clobber (reg:SI 0))
        !          1399:              (clobber (reg:SI 15))])]
        !          1400:   ""
        !          1401:   "")
        !          1402: 
        !          1403: (define_expand "udivmodsi4"
        !          1404:   [(parallel [(set (match_operand:SI 0 "register_operand" "")
        !          1405:                   (udiv:SI (match_operand:SI 1 "register_operand" "")
        !          1406:                            (match_operand:SI 2 "register_operand" "")))
        !          1407:              (set (match_operand:SI 3 "register_operand" "")
        !          1408:                   (umod:SI (match_dup 1) (match_dup 2)))])]
        !          1409:   ""
        !          1410:   "
        !          1411: {
        !          1412:   rtx insn;
        !          1413: 
        !          1414:   emit_insn (gen_udivmodsi4_doit (operands[1], operands[2]));
        !          1415:   insn = emit_move_insn (operands[0], gen_rtx (REG, SImode, 2));
        !          1416:   REG_NOTES (insn) = gen_rtx (EXPR_LIST, REG_EQUAL,
        !          1417:                              gen_rtx (UDIV, SImode, operands[1],
        !          1418:                                       operands[2]),
        !          1419:                              REG_NOTES (insn));
        !          1420:   insn = emit_move_insn (operands[3], gen_rtx (REG, SImode, 3));
        !          1421:   REG_NOTES (insn) = gen_rtx (EXPR_LIST, REG_EQUAL,
        !          1422:                              gen_rtx (UMOD, SImode, operands[1],
        !          1423:                                       operands[2]),
        !          1424:                              REG_NOTES (insn));
        !          1425:   DONE;
        !          1426: }")
        !          1427: 
        !          1428: (define_insn ""
        !          1429:   [(set (reg:SI 2)
        !          1430:        (udiv:SI (reg:SI 2) (reg:SI 3)))
        !          1431:    (set (reg:SI 3)
        !          1432:        (umod:SI (reg:SI 2) (reg:SI 3)))
        !          1433:    (clobber (reg:SI 0))
        !          1434:    (clobber (reg:SI 15))]
        !          1435:   ""
        !          1436:   "bali%# r15,uldiv$$"
        !          1437:   [(set_attr "type" "misc")
        !          1438:    (set_attr "in_delay_slot" "no")])
        !          1439: 
        !          1440: ;; Define DImode arithmetic operations.
        !          1441: ;;
        !          1442: ;; It is possible to do certain adds and subtracts with constants in a single
        !          1443: ;; insn, but it doesn't seem worth the trouble.
        !          1444: ;;
        !          1445: ;; Don't use DEFINE_SPLIT on these because the dependency on CC can't be
        !          1446: ;; easily tracked in that case!
        !          1447: (define_insn "adddi3"
        !          1448:   [(set (match_operand:DI 0 "register_operand" "=r")
        !          1449:        (plus:DI (match_operand:DI 1 "register_operand" "%0")
        !          1450:                 (match_operand:DI 2 "register_operand" "r")))]
        !          1451:   ""
        !          1452:   "a %O0,%O2\;ae %0,%2"
        !          1453:   [(set_attr "type" "multi")])
        !          1454: 
        !          1455: (define_insn "subdi3"
        !          1456:   [(set (match_operand:DI 0 "register_operand" "=r")
        !          1457:        (minus:DI (match_operand:DI 1 "register_operand" "0")
        !          1458:                  (match_operand:DI 2 "register_operand" "r")))]
        !          1459:   ""
        !          1460:   "s %O0,%O2\;se %0,%2"
        !          1461:   [(set_attr "type" "multi")])
        !          1462: 
        !          1463: (define_insn "negdi2"
        !          1464:   [(set (match_operand:DI 0 "register_operand" "=r,&r")
        !          1465:        (neg:DI (match_operand:DI 1 "register_operand" "0,r")))]
        !          1466:   ""
        !          1467:   "twoc %O0,%O1\;onec %0,%1\;aei %0,%0,0"
        !          1468:   [(set_attr "type" "multi")
        !          1469:    (set_attr "length" "8")])
        !          1470: 
        !          1471: ;; Unary arithmetic operations.
        !          1472: (define_insn "abssi2"
        !          1473:   [(set (match_operand:SI 0 "register_operand" "=r")
        !          1474:        (abs:SI (match_operand:SI 1 "register_operand" "r")))]
        !          1475:   ""
        !          1476:   "abs %0,%1"
        !          1477:   [(set_attr "length" "2")])
        !          1478: 
        !          1479: (define_insn "negsi2"
        !          1480:   [(set (match_operand:SI 0 "register_operand" "=r")
        !          1481:        (neg:SI (match_operand:SI 1 "register_operand" "r")))]
        !          1482:   ""
        !          1483:   "twoc %0,%1"
        !          1484:   [(set_attr "length" "2")])
        !          1485: 
        !          1486: (define_insn "one_cmplsi2"
        !          1487:   [(set (match_operand:SI 0 "register_operand" "=r")
        !          1488:        (not:SI (match_operand:SI 1 "register_operand" "r")))]
        !          1489:   ""
        !          1490:   "onec %0,%1"
        !          1491:   [(set_attr "length" "2")])
        !          1492: 
        !          1493: 
        !          1494: ;; Logical insns: AND, IOR, and XOR
        !          1495: ;;
        !          1496: ;; If the operation is being performed on a 32-bit constant such that
        !          1497: ;; it cannot be done in one insn, do it in two.  We may lose a bit on
        !          1498: ;; CSE in pathological cases, but it seems better doing it this way.
        !          1499: (define_expand "andsi3"
        !          1500:   [(set (match_operand:SI 0 "register_operand" "")
        !          1501:        (and:SI (match_operand:SI 1 "register_operand" "")
        !          1502:                (match_operand:SI 2 "reg_or_any_cint_operand" "")))]
        !          1503:   ""
        !          1504:   "
        !          1505: {
        !          1506:   if (GET_CODE (operands[2]) == CONST_INT)
        !          1507:     {
        !          1508:       int top = (unsigned) INTVAL (operands[2]) >> 16;
        !          1509:       int bottom = INTVAL (operands[2]) & 0xffff;
        !          1510: 
        !          1511:       if (top != 0 && top != 0xffff && bottom != 0 && bottom != 0xffff)
        !          1512:        {
        !          1513:          emit_insn (gen_andsi3 (operands[0], operands[1],
        !          1514:                                 gen_rtx (CONST_INT, VOIDmode,
        !          1515:                                          (top << 16) | 0xffff)));
        !          1516:          operands[1] = operands[0];
        !          1517:          operands[2] = gen_rtx (CONST_INT, VOIDmode, 0xffff0000 | bottom);
        !          1518:        }
        !          1519:     }
        !          1520: }");
        !          1521: 
        !          1522: (define_insn ""
        !          1523:   [(set (match_operand:SI 0 "register_operand" "=r,r,r")
        !          1524:        (and:SI (match_operand:SI 1 "reg_or_and_operand" "%0,r,0")
        !          1525:                (match_operand:SI 2 "reg_or_and_operand" "P,LMO,r")))]
        !          1526:   "register_operand (operands[1], SImode)
        !          1527:    || register_operand (operands[2], SImode)"
        !          1528:   "@
        !          1529:    clrb%k2 %0,%b2
        !          1530:    ni%z2 %0,%1,%Z2
        !          1531:    n %0,%2"
        !          1532:   [(set_attr "length" "2,4,2")])
        !          1533: 
        !          1534: ;; logical OR (IOR)
        !          1535: (define_expand "iorsi3"
        !          1536:   [(set (match_operand:SI 0 "register_operand" "")
        !          1537:        (ior:SI (match_operand:SI 1 "register_operand" "")
        !          1538:                (match_operand:SI 2 "reg_or_any_cint_operand" "")))]
        !          1539:   ""
        !          1540:   "
        !          1541: {
        !          1542:   if (GET_CODE (operands[2]) == CONST_INT)
        !          1543:     {
        !          1544:       int top = (unsigned) INTVAL (operands[2]) >> 16;
        !          1545:       int bottom = INTVAL (operands[2]) & 0xffff;
        !          1546: 
        !          1547:       if (top != 0 && bottom != 0)
        !          1548:        {
        !          1549:          emit_insn (gen_iorsi3 (operands[0], operands[1],
        !          1550:                                 gen_rtx (CONST_INT, VOIDmode, (top << 16))));
        !          1551:          operands[1] = operands[0];
        !          1552:          operands[2] = gen_rtx (CONST_INT, VOIDmode, bottom);
        !          1553:        }
        !          1554:     }
        !          1555: }");
        !          1556: 
        !          1557: (define_insn ""
        !          1558:   [(set (match_operand:SI 0 "register_operand" "=r,r,r")
        !          1559:        (ior:SI (match_operand:SI 1 "reg_or_cint_operand" "%0,r,0")
        !          1560:                (match_operand:SI 2 "reg_or_cint_operand" "N,LM,r")))]
        !          1561:   "register_operand (operands[1], SImode)
        !          1562:    || register_operand (operands[2], SImode)"
        !          1563:   "@
        !          1564:    setb%h2 %0,%b2
        !          1565:    oi%h2 %0,%1,%H2
        !          1566:    o %0,%2"
        !          1567:   [(set_attr "length" "2,4,2")])
        !          1568: 
        !          1569: ;; exclusive-or (XOR)
        !          1570: (define_expand "xorsi3"
        !          1571:   [(set (match_operand:SI 0 "register_operand" "")
        !          1572:        (xor:SI (match_operand:SI 1 "register_operand" "")
        !          1573:                (match_operand:SI 2 "reg_or_any_cint_operand" "")))]
        !          1574:   ""
        !          1575:   "
        !          1576: {
        !          1577:   if (GET_CODE (operands[2]) == CONST_INT)
        !          1578:     {
        !          1579:       int top = (unsigned) INTVAL (operands[2]) >> 16;
        !          1580:       int bottom = INTVAL (operands[2]) & 0xffff;
        !          1581: 
        !          1582:       if (top == 0xffff && bottom == 0xffff)
        !          1583:        {
        !          1584:          emit_insn (gen_one_cmplsi2 (operands[0], operands[1]));
        !          1585:          DONE;
        !          1586:        }
        !          1587:       else if (top != 0 && bottom != 0)
        !          1588:        {
        !          1589:          emit_insn (gen_xorsi3 (operands[0], operands[1],
        !          1590:                                 gen_rtx (CONST_INT, VOIDmode, (top << 16))));
        !          1591:          operands[1] = operands[0];
        !          1592:          operands[2] = gen_rtx (CONST_INT, VOIDmode, bottom);
        !          1593:        }
        !          1594:     }
        !          1595: }");
        !          1596: 
        !          1597: (define_insn ""
        !          1598:   [(set (match_operand:SI 0 "register_operand" "=r,r")
        !          1599:        (xor:SI (match_operand:SI 1 "reg_or_cint_operand" "%r,0")
        !          1600:                (match_operand:SI 2 "reg_or_cint_operand" "LM,r")))]
        !          1601:   "register_operand (operands[1], SImode)
        !          1602:    || register_operand (operands[2], SImode)"
        !          1603:   "@
        !          1604:    xi%h2 %0,%1,%H2
        !          1605:    x %0,%2"
        !          1606:   [(set_attr "length" "4,2")])
        !          1607: 
        !          1608: ;; Various shift insns
        !          1609: (define_insn "ashrsi3"
        !          1610:   [(set (match_operand:SI 0 "register_operand" "=r,r")
        !          1611:        (ashiftrt:SI (match_operand:SI 1 "register_operand" "0,0")
        !          1612:                     (match_operand:SI 2 "reg_or_cint_operand" "r,n")))]
        !          1613:   ""
        !          1614:   "@
        !          1615:    sar %0,%2
        !          1616:    sari%s2 %0,%S2"
        !          1617:   [(set_attr "length" "2")])
        !          1618: 
        !          1619: (define_insn "lshrsi3"
        !          1620:   [(set (match_operand:SI 0 "register_operand" "=r,r")
        !          1621:        (lshiftrt:SI (match_operand:SI 1 "register_operand" "0,0")
        !          1622:                     (match_operand:SI 2 "reg_or_cint_operand" "r,n")))]
        !          1623:   ""
        !          1624:   "@
        !          1625:    sr %0,%2
        !          1626:    sri%s2 %0,%S2"
        !          1627:   [(set_attr "length" "2")])
        !          1628: 
        !          1629: (define_insn ""
        !          1630:   [(set (match_operand:SI 0 "register_operand" "=r")
        !          1631:        (ashift:SI (match_operand:SI 1 "register_operand" "b")
        !          1632:                   (const_int 1)))]
        !          1633:   ""
        !          1634:   "cas %0,%1,%1"
        !          1635:   [(set_attr "length" "2")
        !          1636:    (set_attr "type" "address")])
        !          1637: 
        !          1638: (define_insn "ashlsi3"
        !          1639:   [(set (match_operand:SI 0 "register_operand" "=r,r")
        !          1640:        (ashift:SI (match_operand:SI 1 "register_operand" "0,0")
        !          1641:                   (match_operand:SI 2 "reg_or_cint_operand" "r,n")))]
        !          1642:   ""
        !          1643:   "@
        !          1644:    sl %0,%2
        !          1645:    sli%s2 %0,%S2"
        !          1646:   [(set_attr "length" "2")])
        !          1647: 
        !          1648: ;; Function call insns:
        !          1649: ;;
        !          1650: ;; On the ROMP, &fcn is actually a pointer to the data area, which is passed
        !          1651: ;; to the function in r0.  &.fcn is the actual starting address of the
        !          1652: ;; function.  Also, the word at &fcn contains &.fcn.
        !          1653: ;;
        !          1654: ;; For both functions that do and don't return values, there are two cases:
        !          1655: ;; where the function's address is a constant, and where it isn't.
        !          1656: ;;
        !          1657: ;; Operand 1 (2 for `call_value') is the number of arguments and is not used.
        !          1658: (define_expand "call"
        !          1659:   [(use (reg:SI 0))
        !          1660:    (parallel [(call (mem:SI (match_operand:SI 0 "address_operand" ""))
        !          1661:                    (match_operand 1 "" ""))
        !          1662:              (clobber (reg:SI 15))])]
        !          1663:   ""
        !          1664:   "
        !          1665: {
        !          1666:   if (GET_CODE (operands[0]) != MEM || GET_CODE (operands[1]) != CONST_INT)
        !          1667:     abort();
        !          1668: 
        !          1669:   operands[0] = XEXP (operands[0], 0);
        !          1670:   if (GET_CODE (operands[0]) == SYMBOL_REF)
        !          1671:     {
        !          1672:       extern rtx get_symref ();
        !          1673:       char *real_fcnname =
        !          1674:                (char *) alloca (strlen (XSTR (operands[0], 0)) + 2);
        !          1675: 
        !          1676:       /* Copy the data area address to r0.  */
        !          1677:       emit_move_insn (gen_rtx (REG, SImode, 0),
        !          1678:                      force_reg (SImode, operands[0]));
        !          1679:       strcpy (real_fcnname, \".\");
        !          1680:       strcat (real_fcnname, XSTR (operands[0], 0));
        !          1681:       operands[0] = get_symref (real_fcnname);
        !          1682:     }
        !          1683:   else
        !          1684:     {
        !          1685:       rtx data_access;
        !          1686: 
        !          1687:       emit_move_insn (gen_rtx (REG, SImode, 0),
        !          1688:                      force_reg (SImode, operands[0]));
        !          1689:       data_access = gen_rtx (MEM, SImode, operands[0]);
        !          1690:       RTX_UNCHANGING_P (data_access) = 1;
        !          1691:       operands[0] = copy_to_reg (data_access);
        !          1692:     }
        !          1693: }")
        !          1694: 
        !          1695: (define_insn ""
        !          1696:   [(call (mem:SI (match_operand:SI 0 "register_operand" "b"))
        !          1697:         (match_operand 1 "" "g"))
        !          1698:    (clobber (reg:SI 15))]
        !          1699:   ""
        !          1700:   "balr%# r15,%0"
        !          1701:   [(set_attr "type" "call")
        !          1702:    (set_attr "length" "2")])
        !          1703: 
        !          1704: (define_insn ""
        !          1705:   [(call (mem:SI (match_operand:SI 0 "romp_symbolic_operand" "i"))
        !          1706:         (match_operand 1 "" "g"))
        !          1707:    (clobber (reg:SI 15))]
        !          1708:   "GET_CODE (operands[0]) == SYMBOL_REF"
        !          1709:   "bali%# r15,%0"
        !          1710:   [(set_attr "type" "call")])
        !          1711: 
        !          1712: ;; Call a function and return a value.
        !          1713: (define_expand "call_value"
        !          1714:   [(use (reg:SI 0))
        !          1715:    (parallel [(set (match_operand 0 "" "=fg")
        !          1716:                   (call (mem:SI (match_operand:SI 1 "address_operand" ""))
        !          1717:                         (match_operand 2 "" "")))
        !          1718:              (clobber (reg:SI 15))])]
        !          1719:   ""
        !          1720:   "
        !          1721: {
        !          1722:   if (GET_CODE (operands[1]) != MEM || GET_CODE (operands[2]) != CONST_INT)
        !          1723:     abort();
        !          1724: 
        !          1725:   operands[1] = XEXP (operands[1], 0);
        !          1726:   if (GET_CODE (operands[1]) == SYMBOL_REF)
        !          1727:     {
        !          1728:       extern rtx get_symref ();
        !          1729:       char *real_fcnname =
        !          1730:                (char *) alloca (strlen (XSTR (operands[1], 0)) + 2);
        !          1731: 
        !          1732:       /* Copy the data area address to r0.  */
        !          1733:       emit_move_insn (gen_rtx (REG, SImode, 0),
        !          1734:                      force_reg (SImode, operands[1]));
        !          1735:       strcpy (real_fcnname, \".\");
        !          1736:       strcat (real_fcnname, XSTR (operands[1], 0));
        !          1737:       operands[1] = get_symref (real_fcnname);
        !          1738:     }
        !          1739:   else
        !          1740:     {
        !          1741:       rtx data_access;
        !          1742: 
        !          1743:       emit_move_insn (gen_rtx (REG, SImode, 0),
        !          1744:                      force_reg (SImode, operands[1]));
        !          1745:       data_access = gen_rtx (MEM, SImode, operands[1]);
        !          1746:       RTX_UNCHANGING_P (data_access) = 1;
        !          1747:       operands[1] = copy_to_reg (data_access);
        !          1748:     }
        !          1749: }")
        !          1750: 
        !          1751: (define_insn ""
        !          1752:   [(set (match_operand 0 "" "=fg")
        !          1753:        (call (mem:SI (match_operand:SI 1 "register_operand" "b"))
        !          1754:              (match_operand 2 "" "g")))
        !          1755:    (clobber (reg:SI 15))]
        !          1756:   ""
        !          1757:   "balr%# r15,%1"
        !          1758:   [(set_attr "length" "2")
        !          1759:    (set_attr "type" "call")])
        !          1760: 
        !          1761: (define_insn ""
        !          1762:   [(set (match_operand 0 "" "=fg")
        !          1763:        (call (mem:SI (match_operand:SI 1 "romp_symbolic_operand" "i"))
        !          1764:              (match_operand 2 "" "g")))
        !          1765:    (clobber (reg:SI 15))]
        !          1766:   "GET_CODE (operands[1]) == SYMBOL_REF"
        !          1767:   "bali%# r15,%1"
        !          1768:   [(set_attr "type" "call")])
        !          1769: 
        !          1770: ;; Call subroutine returning any type.
        !          1771: 
        !          1772: (define_expand "untyped_call"
        !          1773:   [(parallel [(call (match_operand 0 "" "")
        !          1774:                    (const_int 0))
        !          1775:              (match_operand 1 "" "")
        !          1776:              (match_operand 2 "" "")])]
        !          1777:   ""
        !          1778:   "
        !          1779: {
        !          1780:   int i;
        !          1781: 
        !          1782:   emit_call_insn (gen_call (operands[0], const0_rtx, NULL, const0_rtx));
        !          1783: 
        !          1784:   for (i = 0; i < XVECLEN (operands[2], 0); i++)
        !          1785:     {
        !          1786:       rtx set = XVECEXP (operands[2], 0, i);
        !          1787:       emit_move_insn (SET_DEST (set), SET_SRC (set));
        !          1788:     }
        !          1789: 
        !          1790:   /* The optimizer does not know that the call sets the function value
        !          1791:      registers we stored in the result block.  We avoid problems by
        !          1792:      claiming that all hard registers are used and clobbered at this
        !          1793:      point.  */
        !          1794:   emit_insn (gen_blockage ());
        !          1795: 
        !          1796:   DONE;
        !          1797: }")
        !          1798: 
        !          1799: ;; UNSPEC_VOLATILE is considered to use and clobber all hard registers and
        !          1800: ;; all of memory.  This blocks insns from being moved across this point.
        !          1801: 
        !          1802: (define_insn "blockage"
        !          1803:   [(unspec_volatile [(const_int 0)] 0)]
        !          1804:   ""
        !          1805:   "")
        !          1806: 
        !          1807: ;; No operation insn.
        !          1808: (define_insn "nop"
        !          1809:   [(const_int 0)]
        !          1810:   ""
        !          1811:   "nopr r0"
        !          1812:   [(set_attr "type" "address")
        !          1813:    (set_attr "length" "2")
        !          1814:    (set_attr "cc" "none")])
        !          1815: 
        !          1816: ;; Here are the floating-point operations.
        !          1817: ;;
        !          1818: ;; Start by providing DEFINE_EXPAND for each operation.
        !          1819: ;; The insns will be handled with MATCH_OPERATOR; the methodology will be
        !          1820: ;; discussed below.
        !          1821: 
        !          1822: ;; First the conversion operations.
        !          1823: 
        !          1824: (define_expand "truncdfsf2"
        !          1825:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !          1826:                   (float_truncate:SF (match_operand:DF 1 "general_operand" "")))
        !          1827:              (clobber (reg:SI 0))
        !          1828:              (clobber (reg:SI 15))])]
        !          1829:   ""
        !          1830:   "")
        !          1831: 
        !          1832: (define_expand "extendsfdf2"
        !          1833:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !          1834:                   (float_extend:DF (match_operand:SF 1 "general_operand" "")))
        !          1835:              (clobber (reg:SI 0))
        !          1836:              (clobber (reg:SI 15))])]
        !          1837:   ""
        !          1838:   "")
        !          1839: 
        !          1840: (define_expand "floatsisf2"
        !          1841:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !          1842:                   (float:SF (match_operand:SI 1 "general_operand" "")))
        !          1843:              (clobber (reg:SI 0))
        !          1844:              (clobber (reg:SI 15))])]
        !          1845:   ""
        !          1846:   "")
        !          1847: 
        !          1848: (define_expand "floatsidf2"
        !          1849:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !          1850:                   (float:DF (match_operand:SI 1 "general_operand" "")))
        !          1851:              (clobber (reg:SI 0))
        !          1852:              (clobber (reg:SI 15))])]
        !          1853:   ""
        !          1854:   "")
        !          1855: 
        !          1856: (define_expand "fix_truncsfsi2"
        !          1857:   [(parallel [(set (match_operand:SI 0 "general_operand" "")
        !          1858:                   (fix:SI (match_operand:SF 1 "general_operand" "")))
        !          1859:              (clobber (reg:SI 0))
        !          1860:              (clobber (reg:SI 15))])]
        !          1861:   ""
        !          1862:   "")
        !          1863: 
        !          1864: (define_expand "fix_truncdfsi2"
        !          1865:   [(parallel [(set (match_operand:SI 0 "general_operand" "")
        !          1866:                   (fix:SI (match_operand:DF 1 "general_operand" "")))
        !          1867:              (clobber (reg:SI 0))
        !          1868:              (clobber (reg:SI 15))])]
        !          1869:   ""
        !          1870:   "")
        !          1871: 
        !          1872: ;; Now the binary operations.
        !          1873: 
        !          1874: (define_expand "addsf3"
        !          1875:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !          1876:                   (plus:SF (match_operand:SF 1 "general_operand" "")
        !          1877:                            (match_operand:SF 2 "general_operand" "")))
        !          1878:              (clobber (reg:SI 0))
        !          1879:              (clobber (reg:SI 15))])]
        !          1880:   ""
        !          1881:   "")
        !          1882: 
        !          1883: (define_expand "adddf3"
        !          1884:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !          1885:                   (plus:DF (match_operand:DF 1 "general_operand" "")
        !          1886:                            (match_operand:DF 2 "general_operand" "")))
        !          1887:               (clobber (reg:SI 0))
        !          1888:               (clobber (reg:SI 15))])]
        !          1889:   ""
        !          1890:   "")
        !          1891: 
        !          1892: (define_expand "subsf3"
        !          1893:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !          1894:                   (minus:SF (match_operand:SF 1 "general_operand" "")
        !          1895:                             (match_operand:SF 2 "general_operand" "")))
        !          1896:              (clobber (reg:SI 0))
        !          1897:              (clobber (reg:SI 15))])]
        !          1898:   ""
        !          1899:   "")
        !          1900: 
        !          1901: (define_expand "subdf3"
        !          1902:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !          1903:                   (minus:DF (match_operand:DF 1 "general_operand" "")
        !          1904:                             (match_operand:DF 2 "general_operand" "")))
        !          1905:              (clobber (reg:SI 0))
        !          1906:              (clobber (reg:SI 15))])]
        !          1907:   ""
        !          1908:   "")
        !          1909: 
        !          1910: (define_expand "mulsf3"
        !          1911:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !          1912:                   (mult:SF (match_operand:SF 1 "general_operand" "")
        !          1913:                            (match_operand:SF 2 "general_operand" "")))
        !          1914:              (clobber (reg:SI 0))
        !          1915:              (clobber (reg:SI 15))])]
        !          1916:   ""
        !          1917:   "")
        !          1918: 
        !          1919: (define_expand "muldf3"
        !          1920:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !          1921:                   (mult:DF (match_operand:DF 1 "general_operand" "")
        !          1922:                            (match_operand:DF 2 "general_operand" "")))
        !          1923:              (clobber (reg:SI 0))
        !          1924:              (clobber (reg:SI 15))])]
        !          1925:   ""
        !          1926:   "")
        !          1927: 
        !          1928: (define_expand "divsf3"
        !          1929:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !          1930:                   (div:SF (match_operand:SF 1 "general_operand" "")
        !          1931:                           (match_operand:SF 2 "general_operand" "")))
        !          1932:              (clobber (reg:SI 0))
        !          1933:              (clobber (reg:SI 15))])]
        !          1934:   ""
        !          1935:   "")
        !          1936: 
        !          1937: (define_expand "divdf3"
        !          1938:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !          1939:                   (div:DF (match_operand:DF 1 "general_operand" "")
        !          1940:                           (match_operand:DF 2 "general_operand" "")))
        !          1941:              (clobber (reg:SI 0))
        !          1942:              (clobber (reg:SI 15))])]
        !          1943:   ""
        !          1944:   "")
        !          1945: 
        !          1946: ;; Unary floating-point operations.
        !          1947: ;;
        !          1948: ;; Negations can be done without floating-point, since this is IEEE.
        !          1949: ;; But we cannot do this if an operand is a hard FP register, since
        !          1950: ;; the SUBREG we create would not be valid.
        !          1951: (define_expand "negsf2"
        !          1952:   [(set (match_operand:SF 0 "register_operand" "")
        !          1953:        (neg:SF (match_operand:SF 1 "register_operand" "")))]
        !          1954:   ""
        !          1955:   "
        !          1956: {
        !          1957:   if (! (GET_CODE (operands[0]) == REG
        !          1958:         && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
        !          1959:         && FP_REGNO_P (REGNO (operands[0])))
        !          1960:       && ! (GET_CODE (operands[1]) == REG
        !          1961:            && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
        !          1962:            && FP_REGNO_P (REGNO (operands[1]))))
        !          1963:     {
        !          1964:       rtx result;
        !          1965:       rtx target = operand_subword (operands[0], 0, 1, SFmode);
        !          1966: 
        !          1967:       result = expand_binop (SImode, xor_optab,
        !          1968:                             operand_subword_force (operands[1], 0, SFmode),
        !          1969:                             gen_rtx (CONST_INT, VOIDmode, 0x80000000),
        !          1970:                             target, 0, OPTAB_WIDEN);
        !          1971:       if (result == 0)
        !          1972:        abort ();
        !          1973: 
        !          1974:       if (result != target)
        !          1975:        emit_move_insn (result, target);
        !          1976: 
        !          1977:       /* Make a place for REG_EQUAL.  */
        !          1978:       emit_move_insn (operands[0], operands[0]);
        !          1979:       DONE;
        !          1980:     }
        !          1981: }")
        !          1982: 
        !          1983: (define_expand "negdf2"
        !          1984:   [(set (match_operand:DF 0 "register_operand" "")
        !          1985:        (neg:DF (match_operand:DF 1 "register_operand" "")))]
        !          1986:   ""
        !          1987:   "
        !          1988: {
        !          1989:   if (! (GET_CODE (operands[0]) == REG
        !          1990:         && REGNO (operands[0]) < FIRST_PSEUDO_REGISTER
        !          1991:         && FP_REGNO_P (REGNO (operands[0])))
        !          1992:       && ! (GET_CODE (operands[1]) == REG
        !          1993:            && REGNO (operands[1]) < FIRST_PSEUDO_REGISTER
        !          1994:            && FP_REGNO_P (REGNO (operands[1]))))
        !          1995:     {
        !          1996:       rtx result;
        !          1997:       rtx target = operand_subword (operands[0], 0, 1, DFmode);
        !          1998:       rtx insns;
        !          1999: 
        !          2000:       start_sequence ();
        !          2001:       result = expand_binop (SImode, xor_optab,
        !          2002:                             operand_subword_force (operands[1], 0, DFmode),
        !          2003:                             gen_rtx (CONST_INT, VOIDmode, 0x80000000),
        !          2004:                             target, 0, OPTAB_WIDEN);
        !          2005:       if (result == 0)
        !          2006:        abort ();
        !          2007: 
        !          2008:       if (result != target)
        !          2009:        emit_move_insn (result, target);
        !          2010:   
        !          2011:       emit_move_insn (operand_subword (operands[0], 1, 1, DFmode),
        !          2012:                      operand_subword_force (operands[1], 1, DFmode));
        !          2013: 
        !          2014:       insns = get_insns ();
        !          2015:       end_sequence ();
        !          2016: 
        !          2017:       emit_no_conflict_block (insns, operands[0], operands[1], 0, 0);
        !          2018:       DONE;
        !          2019:     }
        !          2020: }")
        !          2021: 
        !          2022: (define_expand "abssf2"
        !          2023:   [(parallel [(set (match_operand:SF 0 "general_operand" "")
        !          2024:                   (abs:SF (match_operand:SF 1 "general_operand" "")))
        !          2025:              (clobber (reg:SI 0))
        !          2026:              (clobber (reg:SI 15))])]
        !          2027:   ""
        !          2028:   "")
        !          2029: 
        !          2030: (define_expand "absdf2"
        !          2031:   [(parallel [(set (match_operand:DF 0 "general_operand" "")
        !          2032:                   (abs:DF (match_operand:DF 1 "general_operand" "")))
        !          2033:              (clobber (reg:SI 0))
        !          2034:              (clobber (reg:SI 15))])]
        !          2035:   ""
        !          2036:   "")
        !          2037: 
        !          2038: ;; Any floating-point operation can be either SFmode or DFmode, and each
        !          2039: ;; operand (including the output) can be either a normal operand or a
        !          2040: ;; conversion from a normal operand.
        !          2041: ;;
        !          2042: ;; We use MATCH_OPERATOR to match a floating-point binary or unary operator
        !          2043: ;; and input and output conversions.  So we need 2^N patterns for each type
        !          2044: ;; of operation, where N is the number of operands, including the output.
        !          2045: ;; There are thus a total of 14 patterns, 8 for binary operations, 4 for
        !          2046: ;; unary operations and two for conversion/move operations (only one
        !          2047: ;; operand can have a conversion for move operations).  In addition, we have
        !          2048: ;; to be careful that a floating-point reload register doesn't get allocated
        !          2049: ;; for an integer.  We take care of this for inputs with PREFERRED_RELOAD_CLASS
        !          2050: ;; but need to have two different constraints for outputs.  This means that
        !          2051: ;; we have to duplicate each pattern where the output could be an integer.
        !          2052: ;; This adds another 7 patterns, for a total of 21.
        !          2053: 
        !          2054: ;; Start with conversion operations (moves are done above).
        !          2055: 
        !          2056: (define_insn ""
        !          2057:   [(set (match_operand:SI 0 "general_operand" "=g")
        !          2058:        (match_operator 1 "float_conversion"
        !          2059:                [(match_operand 2 "general_operand" "frg")]))
        !          2060:    (clobber (match_operand:SI 3 "reg_0_operand" "=&z"))
        !          2061:    (clobber (match_operand:SI 4 "reg_15_operand" "=&t"))]
        !          2062:   ""
        !          2063:   "*
        !          2064: { return output_fpop (SET, operands[0], operands[2], 0, insn);
        !          2065: }"
        !          2066:   [(set_attr "type" "fp")])
        !          2067: 
        !          2068: (define_insn ""
        !          2069:   [(set (match_operand 0 "general_operand" "=frg")
        !          2070:        (match_operator 1 "float_conversion"
        !          2071:                [(match_operand 2 "general_operand" "frg")]))
        !          2072:    (clobber (match_operand:SI 3 "reg_0_operand" "=&z"))
        !          2073:    (clobber (match_operand:SI 4 "reg_15_operand" "=&t"))]
        !          2074:   ""
        !          2075:   "*
        !          2076: { return output_fpop (SET, operands[0], operands[2], 0, insn);
        !          2077: }"
        !          2078:   [(set_attr "type" "fp")])
        !          2079: 
        !          2080: ;; Next, binary floating-point operations.
        !          2081: 
        !          2082: (define_insn ""
        !          2083:   [(set (match_operand 0 "general_operand" "=frg")
        !          2084:        (match_operator 1 "float_binary"
        !          2085:                [(match_operand 2 "general_operand" "frg")
        !          2086:                 (match_operand 3 "general_operand" "frg")]))
        !          2087:    (clobber (match_operand:SI 4 "reg_0_operand" "=&z"))
        !          2088:    (clobber (match_operand:SI 5 "reg_15_operand" "=&t"))]
        !          2089:   "check_precision (GET_MODE (operands[1]), operands[2], operands[3])"
        !          2090:   "*
        !          2091: { return output_fpop (GET_CODE (operands[1]), operands[0], 
        !          2092:                      operands[2], operands[3], insn);
        !          2093: }"
        !          2094:   [(set_attr "type" "fp")])
        !          2095: 
        !          2096: (define_insn ""
        !          2097:   [(set (match_operand 0 "general_operand" "=frg")
        !          2098:        (match_operator 1 "float_binary"
        !          2099:                [(match_operand 2 "general_operand" "frg")
        !          2100:                 (match_operator 3 "float_conversion"
        !          2101:                        [(match_operand 4 "general_operand" "frg")])]))
        !          2102:    (clobber (match_operand:SI 5 "reg_0_operand" "=&z"))
        !          2103:    (clobber (match_operand:SI 6 "reg_15_operand" "=&t"))]
        !          2104:   "check_precision (GET_MODE (operands[1]), operands[2], operands[4])"
        !          2105:   "*
        !          2106: { return output_fpop (GET_CODE (operands[1]), operands[0], 
        !          2107:                      operands[2], operands[4], insn);
        !          2108: }"
        !          2109:   [(set_attr "type" "fp")])
        !          2110: 
        !          2111: (define_insn ""
        !          2112:   [(set (match_operand 0 "general_operand" "=frg")
        !          2113:        (match_operator 1 "float_binary"
        !          2114:                [(match_operator 2 "float_conversion"
        !          2115:                        [(match_operand 3 "general_operand" "frg")])
        !          2116:                 (match_operand 4 "general_operand" "frg")]))
        !          2117:    (clobber (match_operand:SI 5 "reg_0_operand" "=&z"))
        !          2118:    (clobber (match_operand:SI 6 "reg_15_operand" "=&t"))]
        !          2119:   "check_precision (GET_MODE (operands[1]), operands[3], operands[4])"
        !          2120:   "*
        !          2121: { return output_fpop (GET_CODE (operands[1]), operands[0], 
        !          2122:                      operands[3], operands[4], insn);
        !          2123: }"
        !          2124:   [(set_attr "type" "fp")])
        !          2125: 
        !          2126: (define_insn ""
        !          2127:   [(set (match_operand 0 "general_operand" "=frg")
        !          2128:        (match_operator 1 "float_binary"
        !          2129:                [(match_operator 2 "float_conversion"
        !          2130:                        [(match_operand 3 "general_operand" "frg")])
        !          2131:                 (match_operator 4 "float_conversion"
        !          2132:                        [(match_operand 5 "general_operand" "frg")])]))
        !          2133:    (clobber (match_operand:SI 6 "reg_0_operand" "=&z"))
        !          2134:    (clobber (match_operand:SI 7 "reg_15_operand" "=&t"))]
        !          2135:   "check_precision (GET_MODE (operands[1]), operands[3], operands[5])"
        !          2136:   "*
        !          2137: { return output_fpop (GET_CODE (operands[1]), operands[0], 
        !          2138:                      operands[3], operands[5], insn);
        !          2139: }"
        !          2140:   [(set_attr "type" "fp")])
        !          2141: 
        !          2142: (define_insn ""
        !          2143:   [(set (match_operand:SI 0 "general_operand" "=g")
        !          2144:        (match_operator 1 "float_conversion"
        !          2145:                [(match_operator 2 "float_binary"
        !          2146:                        [(match_operand 3 "general_operand" "frg")
        !          2147:                         (match_operand 4 "general_operand" "frg")])]))
        !          2148:    (clobber (match_operand:SI 5 "reg_0_operand" "=&z"))
        !          2149:    (clobber (match_operand:SI 6 "reg_15_operand" "=&t"))]
        !          2150:   "check_precision (GET_MODE (operands[2]), operands[3], operands[4])"
        !          2151:   "*
        !          2152: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2153:                      operands[3], operands[4], insn);
        !          2154: }"
        !          2155:   [(set_attr "type" "fp")])
        !          2156: 
        !          2157: (define_insn ""
        !          2158:   [(set (match_operand 0 "general_operand" "=frg")
        !          2159:        (match_operator 1 "float_conversion"
        !          2160:                [(match_operator 2 "float_binary"
        !          2161:                        [(match_operand 3 "general_operand" "frg")
        !          2162:                         (match_operand 4 "general_operand" "frg")])]))
        !          2163:    (clobber (match_operand:SI 5 "reg_0_operand" "=&z"))
        !          2164:    (clobber (match_operand:SI 6 "reg_15_operand" "=&t"))]
        !          2165:   "check_precision (GET_MODE (operands[2]), operands[3], operands[4])"
        !          2166:   "*
        !          2167: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2168:                      operands[3], operands[4], insn);
        !          2169: }"
        !          2170:   [(set_attr "type" "fp")])
        !          2171: 
        !          2172: (define_insn ""
        !          2173:   [(set (match_operand:SI 0 "general_operand" "=g")
        !          2174:        (match_operator 1 "float_conversion"
        !          2175:                [(match_operator 2 "float_binary"
        !          2176:                        [(match_operand 3 "general_operand" "frg")
        !          2177:                         (match_operator 4 "float_conversion"
        !          2178:                                [(match_operand 5 "general_operand" "frg")])])]))
        !          2179:    (clobber (match_operand:SI 6 "reg_0_operand" "=&z"))
        !          2180:    (clobber (match_operand:SI 7 "reg_15_operand" "=&t"))]
        !          2181:   "check_precision (GET_MODE (operands[2]), operands[3], operands[4])"
        !          2182:   "*
        !          2183: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2184:                      operands[3], operands[5], insn);
        !          2185: }"
        !          2186:   [(set_attr "type" "fp")])
        !          2187: 
        !          2188: (define_insn ""
        !          2189:   [(set (match_operand 0 "general_operand" "=frg")
        !          2190:        (match_operator 1 "float_conversion"
        !          2191:                [(match_operator 2 "float_binary"
        !          2192:                        [(match_operand 3 "general_operand" "frg")
        !          2193:                         (match_operator 4 "float_conversion"
        !          2194:                                [(match_operand 5 "general_operand" "frg")])])]))
        !          2195:    (clobber (match_operand:SI 6 "reg_0_operand" "=&z"))
        !          2196:    (clobber (match_operand:SI 7 "reg_15_operand" "=&t"))]
        !          2197:   "check_precision (GET_MODE (operands[2]), operands[3], operands[4])"
        !          2198:   "*
        !          2199: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2200:                      operands[3], operands[5], insn);
        !          2201: }"
        !          2202:   [(set_attr "type" "fp")])
        !          2203: 
        !          2204: (define_insn ""
        !          2205:   [(set (match_operand:SI 0 "general_operand" "=g")
        !          2206:        (match_operator 1 "float_conversion"
        !          2207:                [(match_operator 2 "float_binary"
        !          2208:                        [(match_operator 3 "float_conversion"
        !          2209:                                [(match_operand 4 "general_operand" "frg")])
        !          2210:                         (match_operand 5 "general_operand" "frg")])]))
        !          2211:    (clobber (match_operand:SI 6 "reg_0_operand" "=&z"))
        !          2212:    (clobber (match_operand:SI 7 "reg_15_operand" "=&t"))]
        !          2213:   "check_precision (GET_MODE (operands[2]), operands[4], operands[5])"
        !          2214:   "*
        !          2215: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2216:                      operands[4], operands[5], insn);
        !          2217: }"
        !          2218:   [(set_attr "type" "fp")])
        !          2219: 
        !          2220: (define_insn ""
        !          2221:   [(set (match_operand 0 "general_operand" "=frg")
        !          2222:        (match_operator 1 "float_conversion"
        !          2223:                [(match_operator 2 "float_binary"
        !          2224:                        [(match_operator 3 "float_conversion"
        !          2225:                                [(match_operand 4 "general_operand" "frg")])
        !          2226:                         (match_operand 5 "general_operand" "frg")])]))
        !          2227:    (clobber (match_operand:SI 6 "reg_0_operand" "=&z"))
        !          2228:    (clobber (match_operand:SI 7 "reg_15_operand" "=&t"))]
        !          2229:   "check_precision (GET_MODE (operands[2]), operands[4], operands[5])"
        !          2230:   "*
        !          2231: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2232:                      operands[4], operands[5], insn);
        !          2233: }"
        !          2234:   [(set_attr "type" "fp")])
        !          2235: 
        !          2236: (define_insn ""
        !          2237:   [(set (match_operand:SI 0 "general_operand" "=g")
        !          2238:        (match_operator 1 "float_conversion"
        !          2239:                [(match_operator 2 "float_binary"
        !          2240:                        [(match_operator 3 "float_conversion"
        !          2241:                                [(match_operand 4 "general_operand" "frg")])
        !          2242:                         (match_operator 5 "float_conversion"
        !          2243:                                [(match_operand 6 "general_operand" "frg")])])]))
        !          2244:    (clobber (match_operand:SI 7 "reg_0_operand" "=&z"))
        !          2245:    (clobber (match_operand:SI 8 "reg_15_operand" "=&t"))]
        !          2246:   "check_precision (GET_MODE (operands[2]), operands[4], operands[6])"
        !          2247:   "*
        !          2248: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2249:                      operands[4], operands[6], insn);
        !          2250: }"
        !          2251:   [(set_attr "type" "fp")])
        !          2252: 
        !          2253: (define_insn ""
        !          2254:   [(set (match_operand 0 "general_operand" "=frg")
        !          2255:        (match_operator 1 "float_conversion"
        !          2256:                [(match_operator 2 "float_binary"
        !          2257:                        [(match_operator 3 "float_conversion"
        !          2258:                                [(match_operand 4 "general_operand" "frg")])
        !          2259:                         (match_operator 5 "float_conversion"
        !          2260:                                [(match_operand 6 "general_operand" "frg")])])]))
        !          2261:    (clobber (match_operand:SI 7 "reg_0_operand" "=&z"))
        !          2262:    (clobber (match_operand:SI 8 "reg_15_operand" "=&t"))]
        !          2263:   "check_precision (GET_MODE (operands[2]), operands[4], operands[6])"
        !          2264:   "*
        !          2265: { return output_fpop (GET_CODE (operands[2]), operands[0], 
        !          2266:                      operands[4], operands[6], insn);
        !          2267: }"
        !          2268:   [(set_attr "type" "fp")])
        !          2269: 
        !          2270: ;; Unary floating-point operations.
        !          2271: 
        !          2272: (define_insn ""
        !          2273:   [(set (match_operand 0 "general_operand" "=frg")
        !          2274:        (match_operator 1 "float_unary"
        !          2275:                [(match_operand 2 "general_operand" "frg")]))
        !          2276:    (clobber (match_operand:SI 3 "reg_0_operand" "=&z"))
        !          2277:    (clobber (match_operand:SI 4 "reg_15_operand" "=&t"))]
        !          2278:   "check_precision (GET_MODE (operands[1]), operands[2], 0)"
        !          2279:   "*
        !          2280: { return output_fpop (GET_CODE (operands[1]), operands[0], operands[2],
        !          2281:                      0, insn);
        !          2282: }"
        !          2283:   [(set_attr "type" "fp")])
        !          2284: 
        !          2285: (define_insn ""
        !          2286:   [(set (match_operand 0 "general_operand" "=frg")
        !          2287:        (match_operator 1 "float_unary"
        !          2288:                [(match_operator 2 "float_conversion"
        !          2289:                        [(match_operand 3 "general_operand" "frg")])]))
        !          2290:    (clobber (match_operand:SI 4 "reg_0_operand" "=&z"))
        !          2291:    (clobber (match_operand:SI 5 "reg_15_operand" "=&t"))]
        !          2292:   "check_precision (GET_MODE (operands[1]), operands[3], 0)"
        !          2293:   "*
        !          2294: { return output_fpop (GET_CODE (operands[1]), operands[0], operands[3],
        !          2295:                      0, insn);
        !          2296: }"
        !          2297:   [(set_attr "type" "fp")])
        !          2298: 
        !          2299: (define_insn ""
        !          2300:   [(set (match_operand:SI 0 "general_operand" "=g")
        !          2301:        (match_operator 1 "float_conversion"
        !          2302:                [(match_operator 2 "float_unary"
        !          2303:                        [(match_operand 3 "general_operand" "frg")])]))
        !          2304:    (clobber (match_operand:SI 4 "reg_0_operand" "=&z"))
        !          2305:    (clobber (match_operand:SI 5 "reg_15_operand" "=&t"))]
        !          2306:   "check_precision (GET_MODE (operands[2]), operands[3], 0)"
        !          2307:   "*
        !          2308: { return output_fpop (GET_CODE (operands[2]), operands[0], operands[3],
        !          2309:                      0, insn);
        !          2310: }"
        !          2311:   [(set_attr "type" "fp")])
        !          2312: 
        !          2313: (define_insn ""
        !          2314:   [(set (match_operand 0 "general_operand" "=frg")
        !          2315:        (match_operator 1 "float_conversion"
        !          2316:                [(match_operator 2 "float_unary"
        !          2317:                        [(match_operand 3 "general_operand" "frg")])]))
        !          2318:    (clobber (match_operand:SI 4 "reg_0_operand" "=&z"))
        !          2319:    (clobber (match_operand:SI 5 "reg_15_operand" "=&t"))]
        !          2320:   "check_precision (GET_MODE (operands[2]), operands[3], 0)"
        !          2321:   "*
        !          2322: { return output_fpop (GET_CODE (operands[2]), operands[0], operands[3],
        !          2323:                      0, insn);
        !          2324: }"
        !          2325:   [(set_attr "type" "fp")])
        !          2326: 
        !          2327: (define_insn ""
        !          2328:   [(set (match_operand:SI 0 "general_operand" "=g")
        !          2329:        (match_operator 1 "float_conversion"
        !          2330:                [(match_operator 2 "float_unary"
        !          2331:                        [(match_operator 3 "float_conversion"
        !          2332:                                [(match_operand 4 "general_operand" "frg")])])]))
        !          2333:    (clobber (match_operand:SI 5 "reg_0_operand" "=&z"))
        !          2334:    (clobber (match_operand:SI 6 "reg_15_operand" "=&t"))]
        !          2335:   "check_precision (GET_MODE (operands[2]), operands[4], 0)"
        !          2336:   "*
        !          2337: { return output_fpop (GET_CODE (operands[2]), operands[0], operands[4],
        !          2338:                      0, insn);
        !          2339: }"
        !          2340:   [(set_attr "type" "fp")])
        !          2341: 
        !          2342: (define_insn ""
        !          2343:   [(set (match_operand 0 "general_operand" "=frg")
        !          2344:        (match_operator 1 "float_conversion"
        !          2345:                [(match_operator 2 "float_unary"
        !          2346:                        [(match_operator 3 "float_conversion"
        !          2347:                                [(match_operand 4 "general_operand" "frg")])])]))
        !          2348:    (clobber (match_operand:SI 5 "reg_0_operand" "=&z"))
        !          2349:    (clobber (match_operand:SI 6 "reg_15_operand" "=&t"))]
        !          2350:   "check_precision (GET_MODE (operands[2]), operands[4], 0)"
        !          2351:   "*
        !          2352: { return output_fpop (GET_CODE (operands[2]), operands[0], operands[4],
        !          2353:                      0, insn);
        !          2354: }"
        !          2355:   [(set_attr "type" "fp")])
        !          2356: 
        !          2357: ;; Compare insns are next.  Note that the ROMP has two types of compares,
        !          2358: ;; signed & unsigned, and one type of branch.  Use the routine
        !          2359: ;; `next_insn_tests_no_unsigned' to see which type to use.
        !          2360: (define_expand "tstsi"
        !          2361:   [(set (cc0)
        !          2362:        (match_operand:SI 0 "register_operand" "r"))]
        !          2363:   ""
        !          2364:   "")
        !          2365: 
        !          2366: (define_expand "cmpsi"
        !          2367:   [(set (cc0)
        !          2368:         (compare (match_operand:SI 0 "register_operand" "")
        !          2369:                 (match_operand:SI 1 "reg_or_cint_operand" "")))]
        !          2370:   ""
        !          2371:   "")
        !          2372: 
        !          2373: ;; Signed compare, `test' first.
        !          2374: 
        !          2375: (define_insn ""
        !          2376:   [(set (cc0)
        !          2377:        (match_operand:SI 0 "register_operand" "r"))]
        !          2378:   "next_insn_tests_no_unsigned (insn)"
        !          2379:   "cis %0,0"
        !          2380:   [(set_attr "length" "2")
        !          2381:    (set_attr "type" "compare")])
        !          2382: 
        !          2383: (define_insn ""
        !          2384:   [(set (cc0) (match_operand:SI 0 "register_operand" "r,r,r"))
        !          2385:    (set (match_operand:SI 1 "reg_or_nonsymb_mem_operand" "=0,r,Q")
        !          2386:        (match_dup 0))]
        !          2387:   "next_insn_tests_no_unsigned (insn)"
        !          2388:   "@
        !          2389:    cis %1,0
        !          2390:    nilo %1,%0,65535
        !          2391:    st%M1 %0,%1\;cis %0,0"
        !          2392:   [(set_attr "type" "compare,compare,store")
        !          2393:    (set_attr "length" "2,4,6")
        !          2394:    (set_attr "cc" "compare")])
        !          2395: 
        !          2396: (define_insn ""
        !          2397:   [(set (cc0)
        !          2398:         (compare (match_operand:SI 0 "register_operand" "r,r,r")
        !          2399:                 (match_operand:SI 1 "reg_or_cint_operand" "I,K,r")))]
        !          2400:   "next_insn_tests_no_unsigned (insn)"
        !          2401:   "@
        !          2402:    cis %0,%1
        !          2403:    cil %0,%1
        !          2404:    c %0,%1"
        !          2405:   [(set_attr "length" "2,4,2")
        !          2406:    (set_attr "type" "compare")])
        !          2407: 
        !          2408: ;; Unsigned comparisons, `test' first, again.
        !          2409: (define_insn ""
        !          2410:   [(set (cc0)
        !          2411:        (match_operand:SI 0 "register_operand" "r"))]
        !          2412:   "! next_insn_tests_no_unsigned (insn)"
        !          2413:   "clil %0,0"
        !          2414:   [(set_attr "type" "compare")])
        !          2415: 
        !          2416: (define_insn ""
        !          2417:   [(set (cc0)
        !          2418:         (compare (match_operand:SI 0 "register_operand" "r,r")
        !          2419:                 (match_operand:SI 1 "reg_or_cint_operand" "K,r")))]
        !          2420:   "! next_insn_tests_no_unsigned (insn)"
        !          2421:   "@
        !          2422:    clil %0,%1
        !          2423:    cl %0,%1"
        !          2424:   [(set_attr "length" "4,2")
        !          2425:    (set_attr "type" "compare")])
        !          2426: 
        !          2427: ;; Bit test insn.  Many cases are converted into this by combine.  This
        !          2428: ;; uses the ROMP test bit.
        !          2429: 
        !          2430: (define_insn ""
        !          2431:   [(set (cc0)
        !          2432:        (zero_extract (match_operand:SI 0 "register_operand" "r,r")
        !          2433:                      (const_int 1)
        !          2434:                      (match_operand:SI 1 "reg_or_any_cint_operand" "r,n")))]
        !          2435:   "next_insn_tests_no_inequality (insn)"
        !          2436:   "@
        !          2437:    mttb %0,%1
        !          2438:    mttbi%t1 %0,%S1"
        !          2439:   [(set_attr "length" "2")
        !          2440:    (set_attr "type" "compare")
        !          2441:    (set_attr "cc" "tbit")])
        !          2442: 
        !          2443: ;; Floating-point comparisons.  There are two, equality and order.
        !          2444: ;; The difference will be that a trap for NaN will be given on the orderr
        !          2445: ;; comparisons only.
        !          2446: 
        !          2447: (define_expand "cmpsf"
        !          2448:   [(parallel [(set (cc0) (compare (match_operand:SF 0 "general_operand" "")
        !          2449:                                  (match_operand:SF 1 "general_operand" "")))
        !          2450:              (clobber (reg:SI 0))
        !          2451:              (clobber (reg:SI 15))])]
        !          2452:   ""
        !          2453:   "")
        !          2454: 
        !          2455: (define_expand "cmpdf"
        !          2456:   [(parallel [(set (cc0) (compare (match_operand:DF 0 "general_operand" "")
        !          2457:                                  (match_operand:DF 1 "general_operand" "")))
        !          2458:              (clobber (reg:SI 0))
        !          2459:              (clobber (reg:SI 15))])]
        !          2460:   ""
        !          2461:   "")
        !          2462: 
        !          2463: (define_expand "tstsf"
        !          2464:   [(parallel [(set (cc0) (match_operand:SF 0 "general_operand" ""))
        !          2465:              (clobber (reg:SI 0))
        !          2466:              (clobber (reg:SI 15))])]
        !          2467:   ""
        !          2468:   "")
        !          2469: 
        !          2470: (define_expand "tstdf"
        !          2471:   [(parallel [(set (cc0) (match_operand:DF 0 "general_operand" ""))
        !          2472:              (clobber (reg:SI 0))
        !          2473:              (clobber (reg:SI 15))])]
        !          2474:   ""
        !          2475:   "")
        !          2476: 
        !          2477: ;; There are four cases for compare and two for test.  These correspond
        !          2478: ;; to each input having a floating-point conversion or not.
        !          2479: 
        !          2480: (define_insn ""
        !          2481:   [(set (cc0) (compare (match_operand 0 "general_operand" "frg")
        !          2482:                       (match_operand 1 "general_operand" "frg")))
        !          2483:    (clobber (match_operand:SI 2 "reg_0_operand" "=&z"))
        !          2484:    (clobber (match_operand:SI 3 "reg_15_operand" "=&t"))]
        !          2485:   "GET_MODE (operands[1]) == SFmode || GET_MODE (operands[1]) == DFmode"
        !          2486:   "*
        !          2487: { return output_fpop (next_insn_tests_no_inequality (insn) ? EQ : GE,
        !          2488:                      operands[0], operands[1], 0, insn);
        !          2489: }"
        !          2490:   [(set_attr "type" "fp")
        !          2491:    (set_attr "cc" "compare")])
        !          2492: 
        !          2493: (define_insn ""
        !          2494:   [(set (cc0) (compare (match_operand 0 "general_operand" "frg")
        !          2495:                       (match_operator 1 "float_conversion"
        !          2496:                              [(match_operand 2 "general_operand" "frg")])))
        !          2497:    (clobber (match_operand:SI 3 "reg_0_operand" "=&z"))
        !          2498:    (clobber (match_operand:SI 4 "reg_15_operand" "=&t"))]
        !          2499:   ""
        !          2500:   "*
        !          2501: { return output_fpop (next_insn_tests_no_inequality (insn) ? EQ : GE,
        !          2502:                      operands[0], operands[2], 0, insn);
        !          2503: }"
        !          2504:   [(set_attr "type" "fp")
        !          2505:    (set_attr "cc" "compare")])
        !          2506: 
        !          2507: (define_insn ""
        !          2508:   [(set (cc0) (compare (match_operator 0 "float_conversion"
        !          2509:                              [(match_operand 1 "general_operand" "frg")])
        !          2510:                       (match_operand 2 "general_operand" "frg")))
        !          2511:    (clobber (match_operand:SI 3 "reg_0_operand" "=&z"))
        !          2512:    (clobber (match_operand:SI 4 "reg_15_operand" "=&t"))]
        !          2513:   ""
        !          2514:   "*
        !          2515: { return output_fpop (next_insn_tests_no_inequality (insn) ? EQ : GE,
        !          2516:                      operands[1], operands[2], 0, insn);
        !          2517: }"
        !          2518:   [(set_attr "type" "fp")
        !          2519:    (set_attr "cc" "compare")])
        !          2520: 
        !          2521: (define_insn ""
        !          2522:   [(set (cc0) (compare (match_operator 0 "float_conversion"
        !          2523:                              [(match_operand 1 "general_operand" "frg")])
        !          2524:                       (match_operator 2 "float_conversion"
        !          2525:                              [(match_operand 3 "general_operand" "frg")])))
        !          2526:    (clobber (match_operand:SI 4 "reg_0_operand" "=&z"))
        !          2527:    (clobber (match_operand:SI 5 "reg_15_operand" "=&t"))]
        !          2528:   ""
        !          2529:   "*
        !          2530: { return output_fpop (next_insn_tests_no_inequality (insn) ? EQ : GE,
        !          2531:                      operands[1], operands[3], 0, insn);
        !          2532: }"
        !          2533:   [(set_attr "type" "fp")
        !          2534:    (set_attr "cc" "compare")])
        !          2535: 
        !          2536: (define_insn ""
        !          2537:   [(set (cc0) (match_operand 0 "general_operand" "frg"))
        !          2538:    (clobber (match_operand:SI 1 "reg_0_operand" "=&z"))
        !          2539:    (clobber (match_operand:SI 2 "reg_15_operand" "=&t"))]
        !          2540:   "GET_MODE (operands[0]) == SFmode || GET_MODE (operands[0]) == DFmode"
        !          2541:   "*
        !          2542: { return output_fpop (next_insn_tests_no_inequality (insn) ? EQ : GE,
        !          2543:                      operands[0], immed_real_const_1 (0, 0,
        !          2544:                                                       GET_MODE (operands[0])),
        !          2545:                      0, insn);
        !          2546: }"
        !          2547:   [(set_attr "type" "fp")
        !          2548:    (set_attr "cc" "compare")])
        !          2549: 
        !          2550: (define_insn ""
        !          2551:   [(set (cc0) (match_operator 0 "float_conversion"
        !          2552:                        [(match_operand 1 "general_operand" "frg")]))
        !          2553:    (clobber (match_operand:SI 2 "reg_0_operand" "=&z"))
        !          2554:    (clobber (match_operand:SI 3 "reg_15_operand" "=&t"))]
        !          2555:   ""
        !          2556:   "*
        !          2557: { return output_fpop (next_insn_tests_no_inequality (insn) ? EQ : GE,
        !          2558:                      operands[1], immed_real_const_1 (0, 0,
        !          2559:                                                       GET_MODE (operands[1])),
        !          2560:                      0, insn);
        !          2561: }"
        !          2562:   [(set_attr "type" "fp")
        !          2563:    (set_attr "cc" "compare")])
        !          2564: 
        !          2565: ;; Branch insns.  Unsigned vs. signed have already
        !          2566: ;; been taken care of.  The only insns that need to be concerned about the
        !          2567: ;; test bit are beq and bne because the rest are either always true,
        !          2568: ;; always false, or converted to EQ or NE.
        !          2569: 
        !          2570: ;; For conditional branches, we use `define_expand' and just have two patterns
        !          2571: ;; that match them.  Operand printing does most of the work.
        !          2572: 
        !          2573: (define_expand "beq"
        !          2574:   [(set (pc)
        !          2575:        (if_then_else (eq (cc0)
        !          2576:                          (const_int 0))
        !          2577:                      (label_ref (match_operand 0 "" ""))
        !          2578:                      (pc)))]
        !          2579:   ""
        !          2580:   "")
        !          2581: 
        !          2582: (define_expand "bne"
        !          2583:   [(set (pc)
        !          2584:        (if_then_else (ne (cc0)
        !          2585:                          (const_int 0))
        !          2586:                      (label_ref (match_operand 0 "" ""))
        !          2587:                      (pc)))]
        !          2588:   ""
        !          2589:   "")
        !          2590: 
        !          2591: (define_expand "bgt"
        !          2592:   [(set (pc)
        !          2593:        (if_then_else (gt (cc0)
        !          2594:                          (const_int 0))
        !          2595:                      (label_ref (match_operand 0 "" ""))
        !          2596:                      (pc)))]
        !          2597:   ""
        !          2598:   "")
        !          2599: 
        !          2600: (define_expand "bgtu"
        !          2601:   [(set (pc)
        !          2602:        (if_then_else (gtu (cc0)
        !          2603:                           (const_int 0))
        !          2604:                      (label_ref (match_operand 0 "" ""))
        !          2605:                      (pc)))]
        !          2606:   ""
        !          2607:   "")
        !          2608: 
        !          2609: (define_expand "blt"
        !          2610:   [(set (pc)
        !          2611:        (if_then_else (lt (cc0)
        !          2612:                          (const_int 0))
        !          2613:                      (label_ref (match_operand 0 "" ""))
        !          2614:                      (pc)))]
        !          2615:   ""
        !          2616:   "")
        !          2617: 
        !          2618: (define_expand "bltu"
        !          2619:   [(set (pc)
        !          2620:        (if_then_else (ltu (cc0)
        !          2621:                           (const_int 0))
        !          2622:                      (label_ref (match_operand 0 "" ""))
        !          2623:                      (pc)))]
        !          2624:   ""
        !          2625:   "")
        !          2626: 
        !          2627: (define_expand "bge"
        !          2628:   [(set (pc)
        !          2629:        (if_then_else (ge (cc0)
        !          2630:                          (const_int 0))
        !          2631:                      (label_ref (match_operand 0 "" ""))
        !          2632:                      (pc)))]
        !          2633:   ""
        !          2634:   "")
        !          2635: 
        !          2636: (define_expand "bgeu"
        !          2637:   [(set (pc)
        !          2638:        (if_then_else (geu (cc0)
        !          2639:                           (const_int 0))
        !          2640:                      (label_ref (match_operand 0 "" ""))
        !          2641:                      (pc)))]
        !          2642:   ""
        !          2643:   "")
        !          2644: 
        !          2645: (define_expand "ble"
        !          2646:   [(set (pc)
        !          2647:        (if_then_else (le (cc0)
        !          2648:                          (const_int 0))
        !          2649:                      (label_ref (match_operand 0 "" ""))
        !          2650:                      (pc)))]
        !          2651:   ""
        !          2652:   "")
        !          2653: 
        !          2654: (define_expand "bleu"
        !          2655:   [(set (pc)
        !          2656:        (if_then_else (leu (cc0)
        !          2657:                           (const_int 0))
        !          2658:                      (label_ref (match_operand 0 "" ""))
        !          2659:                      (pc)))]
        !          2660:   ""
        !          2661:   "")
        !          2662: 
        !          2663: ;; Define both directions of branch and return.
        !          2664: 
        !          2665: (define_insn ""
        !          2666:   [(set (pc)
        !          2667:        (if_then_else (match_operator 1 "comparison_operator"
        !          2668:                                      [(cc0) (const_int 0)])
        !          2669:                      (label_ref (match_operand 0 "" ""))
        !          2670:                      (pc)))]
        !          2671:   ""
        !          2672:   "*
        !          2673: {
        !          2674:   if (restore_compare_p (operands[1]))
        !          2675:     return 0;
        !          2676:   else if (get_attr_length (insn) == 2)
        !          2677:     return \"j%j1 %l0\";
        !          2678:   else
        !          2679:     return \"b%j1%# %l0\";
        !          2680: }"
        !          2681:   [(set_attr "type" "branch")])
        !          2682: 
        !          2683: (define_insn ""
        !          2684:   [(set (pc)
        !          2685:        (if_then_else (match_operator 0 "comparison_operator"
        !          2686:                                      [(cc0) (const_int 0)])
        !          2687:                      (return)
        !          2688:                      (pc)))]
        !          2689:   "null_epilogue ()"
        !          2690:   "*
        !          2691: {
        !          2692:   if (restore_compare_p (operands[0]))
        !          2693:     return 0;
        !          2694:   else
        !          2695:     return \"b%j0r%# r15\";
        !          2696: }"
        !          2697:   [(set_attr "type" "return")])
        !          2698: 
        !          2699: (define_insn ""
        !          2700:   [(set (pc)
        !          2701:        (if_then_else (match_operator 1 "comparison_operator"
        !          2702:                                [(cc0) (const_int 0)])
        !          2703:                      (pc)
        !          2704:                      (label_ref (match_operand 0 "" ""))))]
        !          2705:   ""
        !          2706:   "*
        !          2707: {
        !          2708:   if (restore_compare_p (operands[1]))
        !          2709:     return 0;
        !          2710:   else if (get_attr_length (insn) == 2)
        !          2711:     return \"j%J1 %l0\";
        !          2712:   else
        !          2713:     return \"b%J1%# %l0\";
        !          2714: }"
        !          2715:   [(set_attr "type" "branch")])
        !          2716: 
        !          2717: (define_insn ""
        !          2718:   [(set (pc)
        !          2719:        (if_then_else (match_operator 0 "comparison_operator"
        !          2720:                                      [(cc0) (const_int 0)])
        !          2721:                      (pc)
        !          2722:                      (return)))]
        !          2723:   "null_epilogue ()"
        !          2724:   "*
        !          2725: {
        !          2726:   if (restore_compare_p (operands[0]))
        !          2727:     return 0;
        !          2728:   else
        !          2729:     return \"b%J0r%# r15\";
        !          2730: }"
        !          2731:   [(set_attr "type" "return")])
        !          2732: 
        !          2733: ;; Unconditional branch and return.
        !          2734: 
        !          2735: (define_insn "jump"
        !          2736:   [(set (pc)
        !          2737:        (label_ref (match_operand 0 "" "")))]
        !          2738:   ""
        !          2739:   "*
        !          2740: {
        !          2741:   if (get_attr_length (insn) == 2)
        !          2742:     return \"j %l0\";
        !          2743:   else
        !          2744:     return \"b%# %l0\";
        !          2745: }"
        !          2746:   [(set_attr "type" "branch")])
        !          2747: 
        !          2748: (define_insn "return"
        !          2749:   [(return)]
        !          2750:   "null_epilogue ()"
        !          2751:   "br%# r15"
        !          2752:   [(set_attr "type" "return")])
        !          2753: 
        !          2754: (define_insn "indirect_jump"
        !          2755:   [(set (pc) (match_operand:SI 0 "register_operand" "r"))]
        !          2756:   ""
        !          2757:   "br%# %0"
        !          2758:   [(set_attr "type" "ibranch")])
        !          2759: 
        !          2760: ;; Table jump for switch statements:
        !          2761: (define_insn "tablejump"
        !          2762:   [(set (pc)
        !          2763:        (match_operand:SI 0 "register_operand" "r"))
        !          2764:    (use (label_ref (match_operand 1 "" "")))]
        !          2765:   ""
        !          2766:   "br%# %0"
        !          2767:   [(set_attr "type" "ibranch")])

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