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

1.1     ! root        1: ;;- Machine description Acorn RISC Machine for GNU compiler
        !             2: ;;  Copyright (C) 1991 Free Software Foundation, Inc.
        !             3: ;;  Contributed by Pieter `Tiggr' Schoenmakers ([email protected])
        !             4: ;;             and Martin Simmons (@harleqn.co.uk).
        !             5: 
        !             6: ;; This file is part of GNU CC.
        !             7: 
        !             8: ;; GNU CC is free software; you can redistribute it and/or modify
        !             9: ;; it under the terms of the GNU General Public License as published by
        !            10: ;; the Free Software Foundation; either version 2, or (at your option)
        !            11: ;; any later version.
        !            12: 
        !            13: ;; GNU CC is distributed in the hope that it will be useful,
        !            14: ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            15: ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            16: ;; GNU General Public License for more details.
        !            17: 
        !            18: ;; You should have received a copy of the GNU General Public License
        !            19: ;; along with GNU CC; see the file COPYING.  If not, write to
        !            20: ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
        !            21: 
        !            22: ;;- See file "rtl.def" for documentation on define_insn, match_*, et. al.
        !            23: 
        !            24: ;; Every template must be output by arm_output_asm_insn, since this keeps
        !            25: ;; track of the offset of labels within the text segment.  This is needed to
        !            26: ;; to be able to (correctly) output instructions for loading a value from a
        !            27: ;; function's constant pool, since different instructions are needed when the
        !            28: ;; constant pool is more than 4095 bytes away from the PC.
        !            29: 
        !            30: ;; Addition insns.
        !            31: 
        !            32: (define_insn "adddi3"
        !            33:   [(set (match_operand:DI 0 "di_operand" "=&r")
        !            34:        (plus:DI (match_operand:DI 1 "di_operand" "%r")
        !            35:                 (match_operand:DI 2 "di_operand" "r")))]
        !            36:   ""
        !            37:   "*
        !            38:   arm_output_asm_insn (\"adds\\t%0, %1, %2\", operands);
        !            39:   return (arm_output_asm_insn (\"adc\\t%R0, %R1, %R2\", operands));
        !            40: ")
        !            41: 
        !            42: (define_insn "addsi3"
        !            43:   [(set (match_operand:SI 0 "register_operand" "=r,r")
        !            44:        (plus:SI (match_operand:SI 1 "register_operand" "r,r")
        !            45:                 (match_operand:SI 2 "general_operand" "r,n")))]
        !            46:   ""
        !            47:   "*
        !            48:   switch (which_alternative)
        !            49:     {
        !            50:     case 0:
        !            51:       return (arm_output_asm_insn (\"add\\t%0, %1, %2\", operands));
        !            52:     case 1:
        !            53:       return (output_add_immediate (operands));
        !            54:     }
        !            55: ")
        !            56: 
        !            57: (define_insn "addsf3"
        !            58:   [(set (match_operand:SF 0 "register_operand" "=f")
        !            59:        (plus:SF (match_operand:SF 1 "register_operand" "f")
        !            60:                 (match_operand:SF 2 "fpu_rhs_operand" "fG")))]
        !            61:   ""
        !            62:   "*
        !            63:   return (arm_output_asm_insn (\"adfs\\t%0, %1, %2\", operands));
        !            64: ")
        !            65: 
        !            66: (define_insn "adddf3"
        !            67:   [(set (match_operand:DF 0 "register_operand" "=f")
        !            68:        (plus:DF (match_operand:DF 1 "register_operand" "f")
        !            69:                 (match_operand:DF 2 "fpu_rhs_operand" "fG")))]
        !            70:   ""
        !            71:   "*
        !            72:   return (arm_output_asm_insn (\"adfd\\t%0, %1, %2\", operands));
        !            73: ")
        !            74: 
        !            75: (define_insn "subdi3"
        !            76:   [(set (match_operand:DI 0 "di_operand" "=&r")
        !            77:        (minus:DI (match_operand:DI 1 "di_operand" "%r")
        !            78:                  (match_operand:DI 2 "di_operand" "r")))]
        !            79:   ""
        !            80:   "*
        !            81:   arm_output_asm_insn (\"subs\\t%0, %1, %2\", operands);
        !            82:   return (arm_output_asm_insn (\"sbc\\t%R0, %R1, %R2\", operands));
        !            83: ")
        !            84: 
        !            85: (define_insn "subsi3"
        !            86:   [(set (match_operand:SI 0 "register_operand" "=r,r,r")
        !            87:        (minus:SI (match_operand:SI 1 "arm_rhs_operand" "r,r,I")
        !            88:                  (match_operand:SI 2 "general_operand" "r,n,r")))]
        !            89:   ""
        !            90:   "*
        !            91:   switch (which_alternative)
        !            92:     {
        !            93:     case 0:
        !            94:       return (arm_output_asm_insn (\"sub\\t%0, %1, %2\", operands));
        !            95:     case 1:
        !            96:       operands[2] = gen_rtx (CONST_INT, VOIDmode, -INTVAL (operands[2]));
        !            97:       return (output_add_immediate (operands));
        !            98:     case 2:
        !            99:       return (arm_output_asm_insn (\"rsb\\t%0, %2, %1\", operands));
        !           100:     }
        !           101: ")
        !           102: 
        !           103: (define_insn "subsf3"
        !           104:   [(set (match_operand:SF 0 "register_operand" "=f,f")
        !           105:        (minus:SF (match_operand:SF 1 "fpu_rhs_operand" "f,G")
        !           106:                  (match_operand:SF 2 "fpu_rhs_operand" "fG,f")))]
        !           107:   ""
        !           108:   "*
        !           109:   switch (which_alternative)
        !           110:     {
        !           111:     case 0:
        !           112:       return (arm_output_asm_insn (\"sufs\\t%0, %1, %2\", operands));
        !           113:     case 1:
        !           114:       return (arm_output_asm_insn (\"rsfs\\t%0, %2, %1\", operands));
        !           115:     }
        !           116: ")
        !           117: 
        !           118: (define_insn "subdf3"
        !           119:   [(set (match_operand:DF 0 "register_operand" "=f,f")
        !           120:        (minus:DF (match_operand:DF 1 "fpu_rhs_operand" "f,G")
        !           121:       (match_operand:DF 2 "fpu_rhs_operand" "fG,f")))]
        !           122:   ""
        !           123:   "*
        !           124:   switch (which_alternative)
        !           125:     {
        !           126:     case 0:
        !           127:       return (arm_output_asm_insn (\"sufd\\t%0, %1, %2\", operands));
        !           128:     case 2:
        !           129:       return (arm_output_asm_insn (\"rsfd\\t%0, %2, %1\", operands));
        !           130:     }
        !           131: ")
        !           132: 
        !           133: ;; Multiplication insns
        !           134: 
        !           135: ;; The `&' is too strict, but at least generates correct code.
        !           136: (define_insn "mulsi3"
        !           137:   [(set (match_operand:SI 0 "register_operand" "=&r")
        !           138:        (mult:SI (match_operand:SI 1 "register_operand" "%r")
        !           139:                 (match_operand:SI 2 "register_operand" "r")))]
        !           140:   ""
        !           141:   "*
        !           142:   if (REGNO (operands[0]) == REGNO (operands[1]))
        !           143:     return (arm_output_asm_insn (\"mul\\t%0, %2, %1\", operands));
        !           144:   else
        !           145:     return (arm_output_asm_insn (\"mul\\t%0, %1, %2\", operands));
        !           146: ")
        !           147: 
        !           148: ;; Unnamed templates to match MLA instruction.
        !           149: 
        !           150: (define_insn ""
        !           151:   [(set (match_operand:SI 0 "register_operand" "=&r")
        !           152:        (plus:SI
        !           153:          (mult:SI (match_operand:SI 1 "register_operand" "%r")
        !           154:                   (match_operand:SI 2 "register_operand" "r"))
        !           155:          (match_operand:SI 3 "register_operand" "r")))]
        !           156:   ""
        !           157:   "*
        !           158:   if (REGNO (operands[0]) == REGNO (operands[1]))
        !           159:     return (arm_output_asm_insn (\"mla\\t%0, %2, %1, %3\", operands));
        !           160:   else
        !           161:     return (arm_output_asm_insn (\"mla\\t%0, %1, %2, %3\", operands));
        !           162: ")
        !           163: 
        !           164: (define_insn ""
        !           165:   [(set (match_operand:SI 0 "register_operand" "=&r")
        !           166:        (plus:SI
        !           167:          (match_operand:SI 3 "register_operand" "r")
        !           168:          (mult:SI (match_operand:SI 1 "register_operand" "%r")
        !           169:                   (match_operand:SI 2 "register_operand" "r"))))]
        !           170:   ""
        !           171:   "*
        !           172:   if (REGNO (operands[0]) == REGNO (operands[1]))
        !           173:     return (arm_output_asm_insn (\"mla\\t%0, %2, %1, %3\", operands));
        !           174:   else
        !           175:     return (arm_output_asm_insn (\"mla\\t%0, %1, %2, %3\", operands));
        !           176: ")
        !           177: 
        !           178: (define_insn "mulsf3"
        !           179:   [(set (match_operand:SF 0 "register_operand" "=f")
        !           180:        (mult:SF (match_operand:SF 1 "register_operand" "f")
        !           181:                 (match_operand:SF 2 "fpu_rhs_operand" "fG")))]
        !           182:   ""
        !           183:   "*return (arm_output_asm_insn (\"mufs\\t%0, %1, %2\", operands));")
        !           184: 
        !           185: (define_insn "muldf3"
        !           186:   [(set (match_operand:DF 0 "register_operand" "=f")
        !           187:        (mult:DF (match_operand:DF 1 "register_operand" "f")
        !           188:                 (match_operand:DF 2 "fpu_rhs_operand" "fG")))]
        !           189:   ""
        !           190:   "*
        !           191:   return (arm_output_asm_insn (\"mufd\\t%0, %1, %2\", operands));
        !           192: ")
        !           193: 
        !           194: ;; Division insns
        !           195: 
        !           196: (define_insn "divsf3"
        !           197:   [(set (match_operand:SF 0 "register_operand" "=f,f")
        !           198:        (div:SF (match_operand:SF 1 "fpu_rhs_operand" "f,G")
        !           199:                (match_operand:SF 2 "fpu_rhs_operand" "fG,f")))]
        !           200:   ""
        !           201:   "*
        !           202:   switch (which_alternative)
        !           203:     {
        !           204:     case 0:
        !           205:       return (arm_output_asm_insn (\"dvfs\\t%0, %1, %2\", operands));
        !           206:     case 1:
        !           207:       return (arm_output_asm_insn (\"rdfs\\t%0, %2, %1\", operands));
        !           208:     }
        !           209: ")
        !           210: 
        !           211: (define_insn "divdf3"
        !           212:   [(set (match_operand:DF 0 "register_operand" "=f,f")
        !           213:        (div:DF (match_operand:DF 1 "fpu_rhs_operand" "f,G")
        !           214:                (match_operand:DF 2 "fpu_rhs_operand" "fG,f")))]
        !           215:   ""
        !           216:   "*
        !           217:   switch (which_alternative)
        !           218:     {
        !           219:     case 0:
        !           220:       return (arm_output_asm_insn (\"dvfd\\t%0, %1, %2\", operands));
        !           221:     case 1:
        !           222:       return (arm_output_asm_insn (\"rdfd\\t%0, %2, %1\", operands));
        !           223:     }
        !           224: ")
        !           225: 
        !           226: ;; Modulo insns
        !           227: 
        !           228: (define_insn "modsf3"
        !           229:   [(set (match_operand:SF 0 "register_operand" "=f")
        !           230:        (mod:SF (match_operand:SF 1 "register_operand" "f")
        !           231:                (match_operand:SF 2 "fpu_rhs_operand" "fG")))]
        !           232:   ""
        !           233:   "*
        !           234:   return (arm_output_asm_insn (\"rmfs\\t%0, %1, %2\", operands));
        !           235: ")
        !           236: 
        !           237: (define_insn "moddf3"
        !           238:   [(set (match_operand:DF 0 "register_operand" "=f")
        !           239:        (mod:DF (match_operand:DF 1 "register_operand" "f")
        !           240:                (match_operand:DF 2 "fpu_rhs_operand" "fG")))]
        !           241:   ""
        !           242:   "*
        !           243:   return (arm_output_asm_insn (\"rmfd\\t%0, %1, %2\", operands));
        !           244: ")
        !           245: 
        !           246: ;; Boolean and,ior,xor insns
        !           247: 
        !           248: (define_insn "anddi3"
        !           249:   [(set (match_operand:DI 0 "di_operand" "=&r")
        !           250:        (and:DI (match_operand:DI 1 "di_operand" "%r")
        !           251:                (match_operand:DI 2 "di_operand" "r")))]
        !           252:   ""
        !           253:   "*
        !           254:   arm_output_asm_insn (\"and\\t%0, %1, %2\", operands);
        !           255:   return (arm_output_asm_insn (\"and\\t%R0, %R1, %R2\", operands));
        !           256: ")
        !           257: 
        !           258: (define_insn "andsi3"
        !           259:   [(set (match_operand:SI 0 "register_operand" "=r")
        !           260:        (and:SI (match_operand:SI 1 "register_operand" "r")
        !           261:                (match_operand:SI 2 "arm_rhs_operand" "rI")))]
        !           262:   ""
        !           263:   "*
        !           264:   return (arm_output_asm_insn (\"and\\t%0, %1, %2\", operands));
        !           265: ")
        !           266: 
        !           267: (define_insn "andcbsi3"
        !           268:   [(set (match_operand:SI 0 "register_operand" "=r")
        !           269:        (and:SI (match_operand:SI 1 "register_operand" "r")
        !           270:                (not:SI (match_operand:SI 2 "arm_rhs_operand" "rI"))))]
        !           271:   ""
        !           272:   "*
        !           273:   return (arm_output_asm_insn (\"bic\\t%0, %1, %2\", operands));
        !           274: ")
        !           275: 
        !           276: (define_insn "iordi3"
        !           277:   [(set (match_operand:DI 0 "di_operand" "=&r")
        !           278:        (ior:DI (match_operand:DI 1 "di_operand" "%r")
        !           279:                (match_operand:DI 2 "di_operand" "r")))]
        !           280:   ""
        !           281:   "*
        !           282:   arm_output_asm_insn (\"orr\\t%0, %1, %2\", operands);
        !           283:   return (arm_output_asm_insn (\"orr\\t%R0, %R1, %R2\", operands));
        !           284: ")
        !           285: 
        !           286: (define_insn "iorsi3"
        !           287:   [(set (match_operand:SI 0 "register_operand" "=r,r")
        !           288:        (ior:SI (match_operand:SI 1 "register_operand" "r,r")
        !           289:                (match_operand:SI 2 "nonmemory_operand" "r,n")))]
        !           290:   ""
        !           291:   "*
        !           292:   switch (which_alternative)
        !           293:     {
        !           294:     case 0:
        !           295:       return (arm_output_asm_insn (\"orr\\t%0, %1, %2\", operands));
        !           296:     case 1:
        !           297:       return (output_multi_immediate (operands,
        !           298:                                      \"orr\\t%0, %1, %2\", \"orr\\t%0, %0, %2\",
        !           299:                                      2, INTVAL (operands[2])));
        !           300:     }
        !           301: ")
        !           302: 
        !           303: (define_insn "xorsi3"
        !           304:   [(set (match_operand:SI 0 "register_operand" "=r,r")
        !           305:        (xor:SI (match_operand:SI 1 "register_operand" "r,r")
        !           306:                (match_operand:SI 2 "nonmemory_operand" "r,n")))]
        !           307:   ""
        !           308:   "*
        !           309:   switch (which_alternative)
        !           310:     {
        !           311:     case 0:
        !           312:       return (arm_output_asm_insn (\"eor\\t%0, %1, %2\", operands));
        !           313:     case 1:
        !           314:       return (output_multi_immediate (operands,
        !           315:                                      \"eor\\t%0, %1, %2\", \"eor\\t%0, %0, %2\",
        !           316:                                      2, INTVAL (operands[2])));
        !           317:     }
        !           318: ")
        !           319: 
        !           320: ;; Shift and rotation insns
        !           321: 
        !           322: (define_insn "ashlsi3"
        !           323:   [(set (match_operand:SI 0 "register_operand" "=r")
        !           324:        (ashift:SI (match_operand:SI 1 "register_operand" "r")
        !           325:                   (match_operand:SI 2 "general_operand" "rn")))]
        !           326:   ""
        !           327:   "*
        !           328:   return (output_shifted_move (ASHIFT, operands));
        !           329: ")
        !           330: 
        !           331: (define_insn "ashrsi3"
        !           332:   [(set (match_operand:SI 0 "register_operand" "=r")
        !           333:        (ashiftrt:SI (match_operand:SI 1 "register_operand" "r")
        !           334:                     (match_operand:SI 2 "general_operand" "rn")))]
        !           335:   ""
        !           336:   "*
        !           337:   return (output_shifted_move (ASHIFTRT, operands));
        !           338: ")
        !           339: 
        !           340: ;; lshlsi3 is not defined because shift counts cannot be negative
        !           341: ;; An unnamed pattern is needed for expansion of zero_extend.
        !           342: 
        !           343: (define_insn ""
        !           344:   [(set (match_operand:SI 0 "register_operand" "=r")
        !           345:        (lshift:SI (match_operand:SI 1 "register_operand" "r")
        !           346:                   (match_operand:SI 2 "general_operand" "rn")))]
        !           347:   ""
        !           348:   "*
        !           349:   return (output_shifted_move (LSHIFT, operands));
        !           350: ")
        !           351: 
        !           352: (define_insn "lshrsi3"
        !           353:   [(set (match_operand:SI 0 "register_operand" "=r")
        !           354:        (lshiftrt:SI (match_operand:SI 1 "register_operand" "r")
        !           355:                     (match_operand:SI 2 "general_operand" "rn")))]
        !           356:   ""
        !           357:   "*
        !           358:   return (output_shifted_move (LSHIFTRT, operands));
        !           359: ")
        !           360: 
        !           361: ;; rotlsi3 is not defined yet to see what happens
        !           362: 
        !           363: (define_insn "rotrsi3"
        !           364:   [(set (match_operand:SI 0 "register_operand" "=r,r")
        !           365:        (rotatert:SI (match_operand:SI 1 "register_operand" "r,r")
        !           366:                     (match_operand:SI 2 "general_operand" "r,n")))]
        !           367:   ""
        !           368:   "*
        !           369:   switch (which_alternative)
        !           370:     {
        !           371:     case 0:
        !           372:       return (arm_output_asm_insn (\"mov\\t%0, %1,ror %2\", operands));
        !           373:     case 1:
        !           374:       if (INTVAL(operands[2]) > 31)
        !           375:        operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) % 32);
        !           376:       return (arm_output_asm_insn (\"mov\\t%0, %1,ror%2\", operands));
        !           377:     }
        !           378: ")
        !           379: 
        !           380: ;; Unary arithmetic insns
        !           381: 
        !           382: (define_insn "negdi2"
        !           383:   [(set (match_operand:DI 0 "di_operand" "=&r")
        !           384:        (neg:DI (match_operand:DI 1 "di_operand" "r")))]
        !           385:   ""
        !           386:   "*
        !           387:   arm_output_asm_insn (\"rsb\\t%0, %1, #0\", operands);
        !           388:   return (arm_output_asm_insn (\"rsc\\t%R0, %R1, #0\", operands));
        !           389: ")
        !           390: 
        !           391: (define_insn "negsi2"
        !           392:   [(set (match_operand:SI 0 "register_operand" "=r")
        !           393:        (neg:SI (match_operand:SI 1 "register_operand" "r")))]
        !           394:   ""
        !           395:   "*
        !           396:   return (arm_output_asm_insn (\"rsb\\t%0, %1, #0\", operands));
        !           397: ")
        !           398: 
        !           399: (define_insn "negsf2"
        !           400:   [(set (match_operand:SF 0 "register_operand" "=f")
        !           401:        (neg:SF (match_operand:SF 1 "register_operand" "f")))]
        !           402:   ""
        !           403:   "*
        !           404:   return (arm_output_asm_insn (\"mnfs\\t%0, %1\", operands));
        !           405: ")
        !           406: 
        !           407: (define_insn "negdf2"
        !           408:   [(set (match_operand:DF 0 "register_operand" "=f")
        !           409:        (neg:DF (match_operand:DF 1 "register_operand" "f")))]
        !           410:   ""
        !           411:   "*
        !           412:   return (arm_output_asm_insn (\"mnfd\\t%0, %1\", operands));
        !           413: ")
        !           414: 
        !           415: (define_insn "abssf2"
        !           416:   [(set (match_operand:SF 0 "register_operand" "=f")
        !           417:         (abs:SF (match_operand:SF 1 "register_operand" "f")))]
        !           418:   ""
        !           419:   "*
        !           420:   return (arm_output_asm_insn (\"abss\\t%0, %1\", operands));
        !           421: ")
        !           422: 
        !           423: (define_insn "absdf2"
        !           424:   [(set (match_operand:DF 0 "register_operand" "=f")
        !           425:        (abs:DF (match_operand:DF 1 "register_operand" "f")))]
        !           426:   ""
        !           427:   "*
        !           428:   return (arm_output_asm_insn (\"absd\\t%0, %1\", operands));
        !           429: ")
        !           430: 
        !           431: (define_insn "sqrtsf2"
        !           432:   [(set (match_operand:SF 0 "register_operand" "=f")
        !           433:        (sqrt:SF (match_operand:SF 1 "register_operand" "f")))]
        !           434:   ""
        !           435:   "*
        !           436:   return (arm_output_asm_insn (\"sqts\\t%0, %1\", operands));
        !           437: ")
        !           438: 
        !           439: (define_insn "sqrtdf2"
        !           440:   [(set (match_operand:DF 0 "register_operand" "=f")
        !           441:        (sqrt:DF (match_operand:DF 1 "register_operand" "f")))]
        !           442:   ""
        !           443:   "*
        !           444:   return (arm_output_asm_insn (\"sqtd\\t%0, %1\", operands));
        !           445: ")
        !           446: 
        !           447: (define_insn "one_cmplsi2"
        !           448:   [(set (match_operand:SI 0 "register_operand" "=r")
        !           449:        (not:SI (match_operand:SI 1 "register_operand" "r")))]
        !           450:   ""
        !           451:   "*
        !           452:   return (arm_output_asm_insn (\"mvn\\t%0, %1\", operands));
        !           453: ")
        !           454: 
        !           455: ;; Fixed <--> Floating conversion insns
        !           456: 
        !           457: (define_insn "floatsisf2"
        !           458:   [(set (match_operand:SF 0 "register_operand" "=f")
        !           459:        (float:SF (match_operand:SI 1 "register_operand" "r")))]
        !           460:   ""
        !           461:   "*
        !           462:   return (arm_output_asm_insn (\"flts\\t%0, %1\", operands));
        !           463: ")
        !           464: 
        !           465: (define_insn "floatsidf2"
        !           466:   [(set (match_operand:DF 0 "register_operand" "=f")
        !           467:        (float:DF (match_operand:SI 1 "register_operand" "r")))]
        !           468:   ""
        !           469:   "*
        !           470:   return (arm_output_asm_insn (\"fltd\\t%0, %1\", operands));
        !           471: ")
        !           472: 
        !           473: ;; Truncation insns
        !           474: 
        !           475: (define_insn "truncdfsf2"
        !           476:   [(set (match_operand:SF 0 "register_operand" "=f")
        !           477:        (float_truncate:SF
        !           478:         (match_operand:DF 1 "register_operand" "f")))]
        !           479:   ""
        !           480:   "*
        !           481:   return (arm_output_asm_insn (\"mvfs\\t%0, %1\", operands));
        !           482: ")
        !           483: 
        !           484: ;; Zero extension instructions.
        !           485: 
        !           486: (define_expand "zero_extendhisi2"
        !           487:   [(set (match_dup 2)
        !           488:        (ashift:SI (match_operand:HI 1 "register_operand" "")
        !           489:                   (const_int 16)))
        !           490:    (set (match_operand:SI 0 "register_operand" "")
        !           491:        (lshiftrt:SI (match_dup 2)
        !           492:                     (const_int 16)))]
        !           493:   ""
        !           494:   "
        !           495: { operands[1] = gen_lowpart (SImode, operands[1]);
        !           496:   operands[2] = gen_reg_rtx (SImode); }")
        !           497: 
        !           498: (define_insn "zero_extendqihi2"
        !           499:   [(set (match_operand:HI 0 "register_operand" "=r")
        !           500:        (zero_extend:HI
        !           501:         (match_operand:QI 1 "register_operand" "r")))]
        !           502:   ""
        !           503:   "*
        !           504:   return (arm_output_asm_insn (\"and\\t%0, %1, #255\\t@ zero_extendqihi2\", operands));
        !           505: ")
        !           506: 
        !           507: (define_insn "zero_extendqisi2"
        !           508:   [(set (match_operand:SI 0 "register_operand" "=r,r")
        !           509:        (zero_extend:SI
        !           510:         (match_operand:QI 1 "nonimmediate_operand" "r,m")))]
        !           511:   ""
        !           512:   "*
        !           513:   switch (which_alternative)
        !           514:     {
        !           515:     case 0:
        !           516:       return (arm_output_asm_insn (\"and\\t%0, %1, #255\\t@ zero_extendqisi2\", operands));
        !           517:     case 1:
        !           518:       return (arm_output_asm_insn (\"ldrb\\t%0, %1\\t@ zero_extendqisi2\", operands));
        !           519:     }
        !           520: ")
        !           521: 
        !           522: (define_expand "extendhisi2"
        !           523:   [(set (match_dup 2)
        !           524:        (ashift:SI (match_operand:HI 1 "register_operand" "")
        !           525:                   (const_int 16)))
        !           526:    (set (match_operand:SI 0 "register_operand" "")
        !           527:        (ashiftrt:SI (match_dup 2)
        !           528:                     (const_int 16)))]
        !           529:   ""
        !           530:   "
        !           531: { operands[1] = gen_lowpart (SImode, operands[1]);
        !           532:   operands[2] = gen_reg_rtx (SImode); }")
        !           533: 
        !           534: (define_expand "extendqihi2"
        !           535:   [(set (match_dup 2)
        !           536:        (ashift:SI (match_operand:QI 1 "register_operand" "")
        !           537:                   (const_int 24)))
        !           538:    (set (match_operand:HI 0 "register_operand" "")
        !           539:        (ashiftrt:SI (match_dup 2)
        !           540:                     (const_int 24)))]
        !           541:   ""
        !           542:   "
        !           543: { operands[0] = gen_lowpart (SImode, operands[0]);
        !           544:   operands[1] = gen_lowpart (SImode, operands[1]);
        !           545:   operands[2] = gen_reg_rtx (SImode); }")
        !           546: 
        !           547: (define_expand "extendqisi2"
        !           548:   [(set (match_dup 2)
        !           549:        (ashift:SI (match_operand:QI 1 "register_operand" "")
        !           550:                   (const_int 24)))
        !           551:    (set (match_operand:SI 0 "register_operand" "")
        !           552:        (ashiftrt:SI (match_dup 2)
        !           553:                     (const_int 24)))]
        !           554:   ""
        !           555:   "
        !           556: { operands[1] = gen_lowpart (SImode, operands[1]);
        !           557:   operands[2] = gen_reg_rtx (SImode); }")
        !           558: 
        !           559: (define_insn "extendsfdf2"
        !           560:   [(set (match_operand:DF 0 "register_operand" "=f")
        !           561:        (float_extend:DF (match_operand:SF 1 "register_operand" "f")))]
        !           562:   ""
        !           563:   "*
        !           564:   return (arm_output_asm_insn (\"mvfd\\t%0, %1\", operands));
        !           565: ")
        !           566: 
        !           567: ;; Move insns (including loads and stores)
        !           568: 
        !           569: ;; XXX Just some ideas about movti.
        !           570: 
        !           571: ;;(define_expand "loadti"
        !           572: ;;  [(set (match_operand:TI 0 "register_operand" "")
        !           573: ;;     (mem:TI (match_operand:SI 1 "address_operand" "")))]
        !           574: ;;  "" "")
        !           575: 
        !           576: ;;(define_expand "storeti"
        !           577: ;;  [(set (mem:TI (match_operand:TI 0 "address_operand" ""))
        !           578: ;;     (match_operand:TI 1 "register_operand" ""))]
        !           579: ;;  "" "")
        !           580: 
        !           581: ;;(define_expand "movti"
        !           582: ;;  [(set (match_operand:TI 0 "general_operand" "")
        !           583: ;;     (match_operand:TI 1 "general_operand" ""))]
        !           584: ;;  ""
        !           585: ;;  "
        !           586: ;;{
        !           587: ;;  rtx insn;
        !           588: ;;
        !           589: ;;  if (GET_CODE (operands[0]) == MEM && GET_CODE (operands[1]) == MEM)
        !           590: ;;    operands[1] = copy_to_reg (operands[1]);
        !           591: ;;  if (GET_CODE (operands[0]) == MEM)
        !           592: ;;    insn = gen_storeti (XEXP (operands[0], 0), operands[1]);
        !           593: ;;  else if (GET_CODE (operands[1]) == MEM)
        !           594: ;;    insn = gen_loadti (operands[0], XEXP (operands[1], 0));
        !           595: ;;  else
        !           596: ;;    FAIL;
        !           597: ;;
        !           598: ;;  emit_insn (insn);
        !           599: ;;  DONE;
        !           600: ;;}")
        !           601: 
        !           602: ;; Recognise garbage generated above.
        !           603: 
        !           604: ;;(define_insn ""
        !           605: ;;  [(set (match_operand:TI 0 "general_operand" "=r,r,r,<,>,m")
        !           606: ;;     (match_operand:TI 1 "general_operand" "<,>,m,r,r,r"))]
        !           607: ;;  ""
        !           608: ;;  "*
        !           609: ;;  {
        !           610: ;;    register mem = (which_alternative < 3);
        !           611: ;;    register char *template;
        !           612: ;;
        !           613: ;;    operands[mem] = XEXP (operands[mem], 0);
        !           614: ;;    switch (which_alternative)
        !           615: ;;      {
        !           616: ;;      case 0: template = \"ldmdb\\t%1!, %M0\"; break;
        !           617: ;;      case 1: template = \"ldmia\\t%1!, %M0\"; break;
        !           618: ;;      case 2: template = \"ldmia\\t%1, %M0\"; break;
        !           619: ;;      case 3: template = \"stmdb\\t%0!, %M1\"; break;
        !           620: ;;      case 4: template = \"stmia\\t%0!, %M1\"; break;
        !           621: ;;      case 5: template = \"stmia\\t%0, %M1\"; break;
        !           622: ;;      }
        !           623: ;;    return (arm_output_asm_insn (template, operands));
        !           624: ;;  }")
        !           625: 
        !           626: 
        !           627: (define_insn "movdi"
        !           628:   [(set (match_operand:DI 0 "di_operand" "=r,r,r,o,r")
        !           629:        (match_operand:DI 1 "di_operand" "r,n,o,r,F"))]
        !           630:   ""
        !           631:   "*
        !           632:   return (output_move_double (operands));
        !           633: ")
        !           634: 
        !           635: (define_insn "movsi"
        !           636:   [(set (match_operand:SI 0 "general_operand" "=r,r,r,m")
        !           637:        (match_operand:SI 1 "general_operand"  "r,n,m,r"))]
        !           638:   ""
        !           639:   "*
        !           640:   switch (which_alternative)
        !           641:     {
        !           642:     case 0:
        !           643:       return (arm_output_asm_insn (\"mov\\t%0, %1\", operands));
        !           644:     case 1:
        !           645:       return (output_mov_immediate (operands));
        !           646:     case 2:
        !           647:       if (GET_CODE (XEXP (operands[1], 0)) == SYMBOL_REF
        !           648:          &&  CONSTANT_POOL_ADDRESS_P (XEXP (operands[1], 0)))
        !           649:        return (arm_output_llc (operands));
        !           650:       else
        !           651:        return (arm_output_asm_insn (\"ldr\\t%0, %1\", operands));
        !           652:     case 3:
        !           653:       return (arm_output_asm_insn (\"str\\t%1, %0\", operands));
        !           654:     }
        !           655: ")
        !           656: 
        !           657: ;; XXX The movhi stuff isn't as correct or as nice as it could be...
        !           658: 
        !           659: ;; Subroutine to load a half word into a register from memory.
        !           660: ;; Operand 0 is the destination register (HImode).
        !           661: ;; Operand 1 is the source address (SImode).
        !           662: ;; Operand 2 is a temporary (SImode).
        !           663: 
        !           664: ;;(define_expand "loadhi"
        !           665: ;;  [;; load the whole word (ARM realigns it if not on word boundary)
        !           666: ;;   (set (match_operand:SI 2 "register_operand" "")
        !           667: ;;        (mem:SI (match_operand:SI 1 "address_operand" "")))
        !           668: ;;   ;; quietly forget the upper 16 bits
        !           669: ;;   (set (match_operand:HI 0 "register_operand" "")
        !           670: ;;        (subreg:HI (match_dup 2) 0))]
        !           671: ;;  ""
        !           672: ;;  ""
        !           673: ;;)
        !           674: 
        !           675: ;; Load op0 from mem:op1.  Subroutine in case we're reloading and the normal
        !           676: ;; loadhi is not allowed.
        !           677: 
        !           678: ;;(define_expand "reloadhi"
        !           679: ;;  [(set (reg:SI 10)
        !           680: ;;     (mem:SI (match_operand:SI 1 "address_operand" "")))
        !           681: ;;   (set (match_operand:HI 0 "register_operand" "")
        !           682: ;;     (subreg:HI (reg:SI 10) 0))]
        !           683: ;;  "" "")
        !           684: 
        !           685: ;; Store op0 into mem:op1.  Subroutine in case we're reloading and the normal
        !           686: ;; storehi is not allowed.
        !           687: 
        !           688: (define_expand "restorehi"
        !           689:   [(set (mem:QI (match_operand:SI 1 "" ""))
        !           690:        (match_dup 2))
        !           691:    (set (reg:SI 10)
        !           692:        (ashiftrt:SI (match_operand 0 "" "") (const_int 8)))
        !           693:    (set (mem:QI (plus:SI (match_dup 1) (const_int 1)))
        !           694:        (reg:QI 10))]
        !           695:   ""
        !           696:   "
        !           697: {
        !           698:   operands[2] = gen_lowpart (QImode, operands[0]);
        !           699:   operands[0] = gen_lowpart (SImode, operands[0]);
        !           700: }")
        !           701: 
        !           702: ;; Subroutine to store a half word from a register into memory.
        !           703: ;; Operand 0 is the source register (HImode)
        !           704: ;; Operand 1 is the destination address in a register (SImode)
        !           705: 
        !           706: (define_expand "storehi"
        !           707:   [;; store the low byte
        !           708:    (set (mem:QI (match_operand:SI 1 "" "")) (match_dup 3))
        !           709:    ;; extract the high byte
        !           710:    (set (match_dup 2)
        !           711:        (ashiftrt:SI (match_operand 0 "" "") (const_int 8)))
        !           712:    ;; store the high byte
        !           713:    (set (mem:QI (plus:SI (match_dup 1) (const_int 1)))
        !           714:        (subreg:QI (match_dup 2) 0))]   ;explicit subreg safe
        !           715:   ""
        !           716:   "
        !           717: { operands[3] = gen_lowpart (QImode, operands[0]);
        !           718:   operands[0] = gen_lowpart (SImode, operands[0]);
        !           719:   operands[2] = gen_reg_rtx (SImode); }")
        !           720: 
        !           721: ;; Subroutine to store a half word integer constant into memory.
        !           722: ;; Operand 0 is the constant
        !           723: ;; Operand 1 is the destination address in a register (SImode)
        !           724: 
        !           725: (define_expand "storeinthi"
        !           726:   [;; store the low byte
        !           727:    (set (mem:QI (match_operand:SI 1 "" "")) (match_operand 0 "" ""))
        !           728:    ;; store the high byte
        !           729:    (set (mem:QI (plus:SI (match_dup 1) (const_int 1)))
        !           730:        (match_dup 2))]
        !           731:   ""
        !           732:   "
        !           733:     {
        !           734:       int value = INTVAL (operands[0]);
        !           735: 
        !           736:       operands[0] = force_reg (QImode, gen_rtx (CONST_INT, VOIDmode, value & 255));
        !           737:       operands[2] = force_reg (QImode, gen_rtx (CONST_INT, VOIDmode,(value>>8) & 255));
        !           738:     }
        !           739: ")
        !           740: 
        !           741: (define_expand "movhi"
        !           742:   [(set (match_operand:HI 0 "general_operand" "")
        !           743:        (match_operand:HI 1 "general_operand" ""))]
        !           744:   ""
        !           745:   "
        !           746: {
        !           747:   rtx insn;
        !           748: 
        !           749:   if (reload_in_progress || reload_completed)
        !           750:     {
        !           751:       if (GET_CODE (operands[0]) == MEM && GET_CODE (operands[1]) == REG)
        !           752:        insn = gen_restorehi (operands[1], XEXP (operands[0], 0));
        !           753:       else
        !           754:        insn = gen_rtx (SET, VOIDmode, operands[0], operands[1]);
        !           755:     }
        !           756:   else
        !           757:     {
        !           758:       if (GET_CODE (operands[0]) == MEM)
        !           759:        {
        !           760:          if (GET_CODE (operands[1]) == CONST_INT)
        !           761:            {
        !           762:              insn = gen_storeinthi (operands[1], force_reg (SImode, XEXP (operands[0], 0)));
        !           763:            }
        !           764:          else
        !           765:            {
        !           766:              if (GET_CODE (operands[1]) == MEM)
        !           767:                operands[1] = copy_to_reg (operands[1]);
        !           768:              insn = gen_storehi (operands[1], force_reg (SImode, XEXP (operands[0], 0)));
        !           769:            }
        !           770:        }
        !           771: #if 0
        !           772:       else if (GET_CODE (operands[1]) == MEM)
        !           773:        {
        !           774:          insn = gen_loadhi (operands[0], XEXP (operands[1], 0),
        !           775:                             gen_reg_rtx (SImode));
        !           776:        }
        !           777: #endif
        !           778:       else
        !           779:        insn = gen_rtx (SET, VOIDmode, operands[0], operands[1]);
        !           780:     }
        !           781: 
        !           782:   emit_insn (insn);
        !           783:   DONE;
        !           784: }")
        !           785: 
        !           786: ;; Pattern to recognise insn generated default case above
        !           787: 
        !           788: (define_insn ""
        !           789:   [(set (match_operand:HI 0 "general_operand" "=r,r,r,m")
        !           790:        (match_operand:HI 1 "general_operand"  "r,n,m,r"))]
        !           791:   ""
        !           792:   "*
        !           793:   switch (which_alternative)
        !           794:     {
        !           795:       case 0: return (arm_output_asm_insn (\"mov\\t%0, %1\\t@movhi\", operands));
        !           796:       case 1: return (output_mov_immediate (operands));
        !           797:       case 2: return (arm_output_asm_insn (\"ldr\\t%0, %1\\t@movhi\", operands));
        !           798:       case 3: return (arm_output_asm_insn (\"str\\t%1, %0\\t@movhi\", operands));
        !           799:     }
        !           800: ")
        !           801: 
        !           802: (define_insn "movqi"
        !           803:   [(set (match_operand:QI 0 "general_operand" "=r,r,r,m")
        !           804:        (match_operand:QI 1 "general_operand" "r,n,m,r"))]
        !           805:   ""
        !           806:   "*
        !           807:   switch (which_alternative)
        !           808:     {
        !           809:     case 0:
        !           810:       return (arm_output_asm_insn (\"mov\\t%0, %1\", operands));
        !           811:     case 1:
        !           812:       return (output_mov_immediate (operands));
        !           813:     case 2:
        !           814:       return (arm_output_asm_insn (\"ldrb\\t%0, %1\", operands));
        !           815:     case 3:
        !           816:       return (arm_output_asm_insn (\"strb\\t%1, %0\", operands));
        !           817:     }
        !           818: ")
        !           819: 
        !           820: (define_insn "movsf"
        !           821:   [(set (match_operand:SF 0 "general_operand" "=f,f,m,f,r,r")
        !           822:        (match_operand:SF 1 "general_operand" "fG,m,f,r,f,r"))]
        !           823:   ""
        !           824:   "*
        !           825:   switch (which_alternative)
        !           826:     {
        !           827:     case 0:
        !           828:       return (arm_output_asm_insn (\"mvfs\\t%0, %1\", operands));
        !           829:     case 1:
        !           830:       return (arm_output_asm_insn (\"ldfs\\t%0, %1\", operands));
        !           831:     case 2:
        !           832:       return (arm_output_asm_insn (\"stfs\\t%1, %0\", operands));
        !           833:     case 3:
        !           834:       arm_output_asm_insn(\"stmfd\\tsp!, {%1}\", operands);
        !           835:       return (arm_output_asm_insn (\"ldfs\\t%0, [sp],#4\", operands));
        !           836:     case 4:
        !           837:       arm_output_asm_insn(\"stfs\\t%1, [sp,#-4]!\", operands);
        !           838:       return (arm_output_asm_insn (\"ldmfd\\tsp!, {%0}\", operands));
        !           839:     case 5:
        !           840:       return (arm_output_asm_insn (\"mov\\t%0, %1\", operands));
        !           841:   }
        !           842: ")
        !           843: 
        !           844: (define_insn "movdf"
        !           845:   [(set (match_operand:DF 0 "general_operand" "=f,f,m,f,r,r")
        !           846:        (match_operand:DF 1 "general_operand" "fG,m,f,r,f,r"))]
        !           847:   ""
        !           848:   "*
        !           849:   switch (which_alternative)
        !           850:     {
        !           851:       case 0: return (arm_output_asm_insn (\"mvfd\\t%0, %1\", operands));
        !           852:       case 1: return (arm_output_asm_insn (\"ldfd\\t%0, %1\", operands));
        !           853:       case 2: return (arm_output_asm_insn (\"stfd\\t%1, %0\", operands));
        !           854:       case 3: return (output_mov_double_fpu_from_arm (operands));
        !           855:       case 4: return (output_mov_double_arm_from_fpu (operands));
        !           856:       case 5: return (output_move_double (operands));
        !           857:     }
        !           858: ")
        !           859: 
        !           860: ;; Comparison and test insns
        !           861: 
        !           862: (define_insn "cmpsi"
        !           863:   [(set (cc0)
        !           864:        (compare (match_operand:SI 0 "register_operand" "r")
        !           865:                 (match_operand:SI 1 "arm_rhs_operand" "rI")))]
        !           866:   ""
        !           867:   "*
        !           868:   return (arm_output_asm_insn (\"cmp\\t%0, %1\", operands));
        !           869: ")
        !           870: 
        !           871: (define_insn "tstsi"
        !           872:   [(set (cc0) (match_operand:SI 0 "register_operand" "r"))]
        !           873:   ""
        !           874:   "*
        !           875:   return (arm_output_asm_insn (\"cmp\\t%0, #0\", operands));
        !           876: ")
        !           877: 
        !           878: (define_insn ""
        !           879:   [(set (cc0)
        !           880:        (compare (match_operand:SI 0 "register_operand" "r")
        !           881:                 (neg:SI (match_operand:SI 1 "arm_rhs_operand" "rI"))))]
        !           882:   ""
        !           883:   "*
        !           884:   return (arm_output_asm_insn (\"cmn\\t%0, %1\", operands));
        !           885: ")
        !           886: 
        !           887: (define_insn "cmpsf"
        !           888:   [(set (cc0)
        !           889:        (compare (match_operand:SF 0 "register_operand" "f")
        !           890:                 (match_operand:SF 1 "fpu_rhs_operand" "fG")))]
        !           891:   ""
        !           892:   "*
        !           893:   return (arm_output_asm_insn (\"cmf\\t%0, %1\", operands));
        !           894: ")
        !           895: 
        !           896: (define_insn "cmpdf"
        !           897:   [(set (cc0)
        !           898:        (compare (match_operand:DF 0 "register_operand" "f")
        !           899:                 (match_operand:DF 1 "fpu_rhs_operand" "fG")))]
        !           900:   ""
        !           901:   "*
        !           902:   return (arm_output_asm_insn (\"cmf\\t%0, %1\", operands));
        !           903: ")
        !           904: 
        !           905: ;; Conditional branch insns
        !           906: 
        !           907: (define_insn "beq"
        !           908:   [(set (pc)
        !           909:        (if_then_else (eq (cc0) (const_int 0))
        !           910:                      (label_ref (match_operand 0 "" ""))
        !           911:                      (pc)))]
        !           912:   ""
        !           913:   "*
        !           914:   return (arm_output_asm_insn (\"beq\\t%l0\", operands));
        !           915: ")
        !           916: 
        !           917: (define_insn "bne"
        !           918:   [(set (pc)
        !           919:        (if_then_else (ne (cc0) (const_int 0))
        !           920:                      (label_ref (match_operand 0 "" ""))
        !           921:                      (pc)))]
        !           922:   ""
        !           923:   "*
        !           924:   return (arm_output_asm_insn (\"bne\\t%l0\", operands));
        !           925: ")
        !           926: 
        !           927: (define_insn "bgt"
        !           928:   [(set (pc)
        !           929:        (if_then_else (gt (cc0) (const_int 0))
        !           930:                      (label_ref (match_operand 0 "" ""))
        !           931:                      (pc)))]
        !           932:   ""
        !           933:   "*
        !           934:   return (arm_output_asm_insn (\"bgt\\t%l0\", operands));
        !           935: ")
        !           936: 
        !           937: (define_insn "ble"
        !           938:   [(set (pc)
        !           939:        (if_then_else (le (cc0) (const_int 0))
        !           940:                      (label_ref (match_operand 0 "" ""))
        !           941:                      (pc)))]
        !           942:   ""
        !           943:   "*
        !           944:   return (arm_output_asm_insn (\"ble\\t%l0\", operands));
        !           945: ")
        !           946: 
        !           947: (define_insn "bge"
        !           948:   [(set (pc)
        !           949:        (if_then_else (ge (cc0) (const_int 0))
        !           950:                      (label_ref (match_operand 0 "" ""))
        !           951:                      (pc)))]
        !           952:   ""
        !           953:   "*
        !           954:   return (arm_output_asm_insn (\"bge\\t%l0\", operands));
        !           955: ")
        !           956: 
        !           957: (define_insn "blt"
        !           958:   [(set (pc)
        !           959:        (if_then_else (lt (cc0) (const_int 0))
        !           960:                      (label_ref (match_operand 0 "" ""))
        !           961:                      (pc)))]
        !           962:   ""
        !           963:   "*
        !           964:   return (arm_output_asm_insn (\"blt\\t%l0\", operands));
        !           965: ")
        !           966: 
        !           967: (define_insn "bgtu"
        !           968:   [(set (pc)
        !           969:        (if_then_else (gtu (cc0) (const_int 0))
        !           970:                      (label_ref (match_operand 0 "" ""))
        !           971:                      (pc)))]
        !           972:   ""
        !           973:   "*
        !           974:   return (arm_output_asm_insn (\"bhi\\t%l0\", operands));
        !           975: ")
        !           976: 
        !           977: (define_insn "bleu"
        !           978:   [(set (pc)
        !           979:        (if_then_else (leu (cc0) (const_int 0))
        !           980:                      (label_ref (match_operand 0 "" ""))
        !           981:                      (pc)))]
        !           982:   ""
        !           983:   "*
        !           984:   return (arm_output_asm_insn (\"bls\\t%l0\", operands));
        !           985: ")
        !           986: 
        !           987: (define_insn "bgeu"
        !           988:   [(set (pc)
        !           989:        (if_then_else (geu (cc0) (const_int 0))
        !           990:                      (label_ref (match_operand 0 "" ""))
        !           991:                      (pc)))]
        !           992:   ""
        !           993:   "*
        !           994:   return (arm_output_asm_insn (\"bhs\\t%l0\", operands));
        !           995: ")
        !           996: 
        !           997: (define_insn "bltu"
        !           998:   [(set (pc)
        !           999:        (if_then_else (ltu (cc0) (const_int 0))
        !          1000:                      (label_ref (match_operand 0 "" ""))
        !          1001:                      (pc)))]
        !          1002:   ""
        !          1003:   "*
        !          1004:   return (arm_output_asm_insn (\"blo\\t%l0\", operands));
        !          1005: ")
        !          1006: 
        !          1007: ;; Inverted conditional branch insns
        !          1008: 
        !          1009: (define_insn ""
        !          1010:   [(set (pc)
        !          1011:        (if_then_else (eq (cc0) (const_int 0))
        !          1012:                      (pc)
        !          1013:                      (label_ref (match_operand 0 "" ""))))]
        !          1014:   ""
        !          1015:   "*
        !          1016:   return (arm_output_asm_insn (\"bne\\t%l0\", operands));
        !          1017: ")
        !          1018: 
        !          1019: (define_insn ""
        !          1020:   [(set (pc)
        !          1021:        (if_then_else (ne (cc0) (const_int 0))
        !          1022:                      (pc)
        !          1023:                      (label_ref (match_operand 0 "" ""))))]
        !          1024:   ""
        !          1025:   "*
        !          1026:   return (arm_output_asm_insn (\"beq\\t%l0\", operands));
        !          1027: ")
        !          1028: 
        !          1029: (define_insn ""
        !          1030:   [(set (pc)
        !          1031:        (if_then_else (gt (cc0) (const_int 0))
        !          1032:                      (pc)
        !          1033:                      (label_ref (match_operand 0 "" ""))))]
        !          1034:   ""
        !          1035:   "*
        !          1036:   return (arm_output_asm_insn (\"ble\\t%l0\", operands));
        !          1037: ")
        !          1038: 
        !          1039: (define_insn ""
        !          1040:   [(set (pc)
        !          1041:        (if_then_else (le (cc0) (const_int 0))
        !          1042:                      (pc)
        !          1043:                      (label_ref (match_operand 0 "" ""))))]
        !          1044:   ""
        !          1045:   "*
        !          1046:   return (arm_output_asm_insn (\"bgt\\t%l0\", operands));
        !          1047: ")
        !          1048: 
        !          1049: (define_insn ""
        !          1050:   [(set (pc)
        !          1051:        (if_then_else (ge (cc0) (const_int 0))
        !          1052:                      (pc)
        !          1053:                      (label_ref (match_operand 0 "" ""))))]
        !          1054:   ""
        !          1055:   "*
        !          1056:   return (arm_output_asm_insn (\"blt\\t%l0\", operands));
        !          1057: ")
        !          1058: 
        !          1059: (define_insn ""
        !          1060:   [(set (pc)
        !          1061:        (if_then_else (lt (cc0) (const_int 0))
        !          1062:                      (pc)
        !          1063:                      (label_ref (match_operand 0 "" ""))))]
        !          1064:   ""
        !          1065:   "*
        !          1066:   return (arm_output_asm_insn (\"bge\\t%l0\", operands));
        !          1067: ")
        !          1068: 
        !          1069: (define_insn ""
        !          1070:   [(set (pc)
        !          1071:        (if_then_else (gtu (cc0) (const_int 0))
        !          1072:                      (pc)
        !          1073:                      (label_ref (match_operand 0 "" ""))))]
        !          1074:   ""
        !          1075:   "*
        !          1076:   return (arm_output_asm_insn (\"bls\\t%l0\", operands));
        !          1077: ")
        !          1078: 
        !          1079: (define_insn ""
        !          1080:   [(set (pc)
        !          1081:        (if_then_else (leu (cc0) (const_int 0))
        !          1082:                      (pc)
        !          1083:                      (label_ref (match_operand 0 "" ""))))]
        !          1084:   ""
        !          1085:   "*
        !          1086:   return (arm_output_asm_insn (\"bhi\\t%l0\", operands));
        !          1087: ")
        !          1088: 
        !          1089: (define_insn ""
        !          1090:   [(set (pc)
        !          1091:        (if_then_else (geu (cc0) (const_int 0))
        !          1092:                      (pc)
        !          1093:                      (label_ref (match_operand 0 "" ""))))]
        !          1094:   ""
        !          1095:   "*
        !          1096:   return (arm_output_asm_insn (\"blo\\t%l0\", operands));
        !          1097: ")
        !          1098: 
        !          1099: (define_insn ""
        !          1100:   [(set (pc)
        !          1101:        (if_then_else (ltu (cc0) (const_int 0))
        !          1102:                      (pc)
        !          1103:                      (label_ref (match_operand 0 "" ""))))]
        !          1104:   ""
        !          1105:   "*
        !          1106:   return (arm_output_asm_insn (\"bhs\\t%l0\", operands));
        !          1107: ")
        !          1108: 
        !          1109: ;; Jump and linkage insns
        !          1110: ;; `return' is still a jump-to-epilogue...
        !          1111: 
        !          1112: (define_insn "jump"
        !          1113:   [(set (pc)
        !          1114:        (label_ref (match_operand 0 "" "")))]
        !          1115:   ""
        !          1116:   "*
        !          1117:   return (arm_output_asm_insn (\"b\\t%l0\", operands));
        !          1118: ")
        !          1119: 
        !          1120: (define_insn "call"
        !          1121:   [(call (match_operand 0 "memory_operand" "m")
        !          1122:         (match_operand 1 "general_operand" "g"))
        !          1123:    (clobber (reg:SI 14))]
        !          1124:   ""
        !          1125:   "*
        !          1126:   return (output_call (operands));
        !          1127: ")
        !          1128: 
        !          1129: (define_insn "call_value"
        !          1130:   [(set (match_operand 0 "" "=rf")
        !          1131:        (call (match_operand 1 "memory_operand" "m")
        !          1132:        (match_operand 2 "general_operand" "g")))
        !          1133:    (clobber (reg:SI 14))]
        !          1134:   ""
        !          1135:   "*
        !          1136:   return (output_call (&operands[1]));
        !          1137: ")
        !          1138: 
        !          1139: ;; Allow calls to SYMBOL_REFs specially as they are not valid general addresses
        !          1140: ;; The 'a' causes the operand to be treated as an address, i.e. no '#' output.
        !          1141: 
        !          1142: (define_insn ""
        !          1143:   [(call (mem:SI (match_operand:SI 0 "" "i"))
        !          1144:         (match_operand:SI 1 "general_operand" "g"))
        !          1145:    (clobber (reg:SI 14))]
        !          1146:   "GET_CODE (operands[0]) == SYMBOL_REF"
        !          1147:   "*
        !          1148:   return (arm_output_asm_insn (\"bl\\t%a0\", operands));
        !          1149: ")
        !          1150: 
        !          1151: (define_insn ""
        !          1152:   [(set (match_operand 0 "register_operand" "=rf")
        !          1153:        (call (mem:SI (match_operand:SI 1 "" "i"))
        !          1154:        (match_operand:SI 2 "general_operand" "g")))
        !          1155:    (clobber (reg:SI 14))]
        !          1156:   "GET_CODE(operands[1]) == SYMBOL_REF"
        !          1157:   "*
        !          1158:   return (arm_output_asm_insn (\"bl\\t%a1\", operands));
        !          1159: ")
        !          1160: 
        !          1161: ;; Call subroutine returning any type.
        !          1162: 
        !          1163: (define_expand "untyped_call"
        !          1164:   [(parallel [(call (match_operand 0 "" "")
        !          1165:                    (const_int 0))
        !          1166:              (match_operand 1 "" "")
        !          1167:              (match_operand 2 "" "")])]
        !          1168:   ""
        !          1169:   "
        !          1170: {
        !          1171:   int i;
        !          1172: 
        !          1173:   emit_call_insn (gen_call (operands[0], const0_rtx, NULL, const0_rtx));
        !          1174: 
        !          1175:   for (i = 0; i < XVECLEN (operands[2], 0); i++)
        !          1176:     {
        !          1177:       rtx set = XVECEXP (operands[2], 0, i);
        !          1178:       emit_move_insn (SET_DEST (set), SET_SRC (set));
        !          1179:     }
        !          1180: 
        !          1181:   /* The optimizer does not know that the call sets the function value
        !          1182:      registers we stored in the result block.  We avoid problems by
        !          1183:      claiming that all hard registers are used and clobbered at this
        !          1184:      point.  */
        !          1185:   emit_insn (gen_blockage ());
        !          1186: 
        !          1187:   DONE;
        !          1188: }")
        !          1189: 
        !          1190: ;; UNSPEC_VOLATILE is considered to use and clobber all hard registers and
        !          1191: ;; all of memory.  This blocks insns from being moved across this point.
        !          1192: 
        !          1193: (define_insn "blockage"
        !          1194:   [(unspec_volatile [(const_int 0)] 0)]
        !          1195:   ""
        !          1196:   "")
        !          1197: 
        !          1198: (define_insn "tablejump"
        !          1199:   [(set (pc)
        !          1200:        (match_operand:SI 0 "register_operand" "r"))
        !          1201:    (use (label_ref (match_operand 1 "" "")))]
        !          1202:   ""
        !          1203:   "*
        !          1204:   return (arm_output_asm_insn (\"mov\\tpc, %0\\t@ table jump, label %l1\", operands));
        !          1205: ")
        !          1206: 
        !          1207: (define_insn "indirect_jump"
        !          1208:   [(set (pc)
        !          1209:        (match_operand:SI 0 "register_operand" "r"))]
        !          1210:   ""
        !          1211:   "*
        !          1212:   return (arm_output_asm_insn (\"mov\\tpc, %0\\t@ indirect jump\", operands));
        !          1213: ")
        !          1214: 
        !          1215: ;; Misc insns
        !          1216: 
        !          1217: (define_insn "nop"
        !          1218:   [(const_int 0)]
        !          1219:   ""
        !          1220:   "*
        !          1221:   return (arm_output_asm_insn (\"mov\\tr0, r0\\t@ nop\", operands));
        !          1222: ")
        !          1223: 
        !          1224: ;; Patterns to allow combination of arithmetic, cond code and shifts
        !          1225: 
        !          1226: ;(define_insn ""
        !          1227: ;  [(set (match_operand:SI 0 "register_operand" "=r")
        !          1228: ;        (match_operator:SI 1 "shiftable_operator"
        !          1229: ;          [(match_operand:SI 2 "register_operand" "r")
        !          1230: ;           (match_operator:SI 3 "shift_operator"
        !          1231: ;             [(match_operand:SI 4 "register_operand" "r")
        !          1232: ;            (match_operand:SI 5 "nonmemory_operand" "rn")])]))]
        !          1233: ;  ""
        !          1234: ;  "*
        !          1235: ;  return (output_arithmetic_with_shift (operands, FALSE, FALSE));
        !          1236: ;  "
        !          1237: ;)
        !          1238: 
        !          1239: ;(define_insn ""
        !          1240: ;  [(set (match_operand:SI 0 "register_operand" "=r")
        !          1241: ;        (match_operator:SI 1 "shiftable_operator"
        !          1242: ;          [(match_operator:SI 3 "shift_operator"
        !          1243: ;             [(match_operand:SI 4 "register_operand" "r")
        !          1244: ;              (match_operand:SI 5 "nonmemory_operand" "rI")])
        !          1245: ;           (match_operand:SI 2 "register_operand" "r")]))]
        !          1246: ;  ""
        !          1247: ;  "*
        !          1248: ;  return (output_arithmetic_with_shift (operands, TRUE, FALSE));
        !          1249: ;")
        !          1250: 
        !          1251: ;; Patterns to allow combination of arithmetic and left shift
        !          1252: 
        !          1253: ;(define_insn ""
        !          1254: ;  [(set (match_operand:SI 0 "register_operand" "=r")
        !          1255: ;        (match_operator:SI 1 "shiftable_operator"
        !          1256: ;          [(match_operand:SI 2 "register_operand" "r")
        !          1257: ;             (mult:SI
        !          1258: ;               (match_operand:SI 3 "register_operand" "r")
        !          1259: ;               (match_operand:SI 4 "power_of_two_operand" "n"))]))]
        !          1260: ;  ""
        !          1261: ;  "*
        !          1262: ;  return (output_arithmetic_with_immediate_multiply (operands, FALSE));
        !          1263: ;")
        !          1264: 
        !          1265: (define_insn ""
        !          1266:   [(set (match_operand:SI 0 "register_operand" "=r")
        !          1267:         (match_operator:SI 1 "shiftable_operator"
        !          1268:          [(mult:SI
        !          1269:            (match_operand:SI 3 "register_operand" "r")
        !          1270:            (match_operand:SI 4 "power_of_two_operand" "n"))
        !          1271:           (match_operand:SI 2 "register_operand" "r")]))]
        !          1272:   ""
        !          1273:   "*
        !          1274:   return (output_arithmetic_with_immediate_multiply (operands, TRUE));
        !          1275: ")
        !          1276: 
        !          1277: ;; This variant of the above insn can occur if the first operand is the
        !          1278: ;; frame pointer and we eliminate that.  This is a kludge, but there doesn't
        !          1279: ;; seem to be a way around it.
        !          1280: 
        !          1281: (define_insn ""
        !          1282:   [(set (match_operand:SI 0 "register_operand" "=&r")
        !          1283:        (plus:SI (plus:SI (mult:SI (match_operand:SI 3 "register_operand" "r")
        !          1284:                                   (match_operand:SI 4 "power_of_two_operand" "n"))
        !          1285:                          (match_operand:SI 2 "register_operand" "r"))
        !          1286:                 (match_operand:SI 1 "const_int_operand" "n")))]
        !          1287:   "reload_in_progress"
        !          1288:   "*
        !          1289: {
        !          1290:   int shift = int_log2 (INTVAL (operands[4]));
        !          1291:   operands[4] = GEN_INT (shift);
        !          1292:   arm_output_asm_insn (\"add\\t%0, %2, %3, asl %4\", operands);
        !          1293:   operands[2] = operands[1];
        !          1294:   operands[1] = operands[0];
        !          1295:   return output_add_immediate (operands);
        !          1296: }")
        !          1297: 
        !          1298: ;; Peephole optimizations.
        !          1299: 
        !          1300: ;; When testing a bitset smaller than 9 bits for (un)equality, a
        !          1301: ;; shift/and/cmp/b{eq,ne} sequence can be replaced by one tst and the same
        !          1302: ;; branch sequence.
        !          1303: 
        !          1304: ;;(define_peephole
        !          1305: ;;  [(set (match_operand:SI 0 "register_operand" "=r")
        !          1306: ;;     (lshiftrt:SI (match_dup 0)
        !          1307: ;;                  (match_operand 1 "immediate_operand" "")))
        !          1308: ;;   (set (match_dup 0)
        !          1309: ;;     (and:SI (match_dup 0)
        !          1310: ;;             (match_operand 2 "immediate_operand" "")))
        !          1311: ;;   (set (cc0) (match_dup 0))
        !          1312: ;;   (set (pc)
        !          1313: ;;     (if_then_else (ne (cc0) (const_int 0))
        !          1314: ;;                   (label_ref (match_operand 3 "" ""))
        !          1315: ;;                   (pc)))]
        !          1316: ;;  "dead_or_set_p (PREV_INSN (insn), operands[0])
        !          1317: ;;   && GET_CODE (operands[2]) == CONST_INT && GET_CODE (operands[1]) == CONST_INT
        !          1318: ;;   && const_ok_for_arm (INTVAL (operands[2]) << INTVAL (operands[1]))"
        !          1319: ;;  "*
        !          1320: ;;  operands[2] = gen_rtx (CONST_INT, VOIDmode,
        !          1321: ;;                         INTVAL (operands[2]) << INTVAL (operands[1]));
        !          1322: ;;  arm_output_asm_insn (\"tst\\t%0, %2\\t\\t@ ph test bitfield\", operands);
        !          1323: ;;  return (arm_output_asm_insn (\"bne\\t%l3\", operands));
        !          1324: ;;")
        !          1325: 
        !          1326: ;;(define_peephole
        !          1327: ;;  [(set (match_operand:SI 0 "register_operand" "=r")
        !          1328: ;;     (lshiftrt:SI (match_dup 0)
        !          1329: ;;                  (match_operand 1 "immediate_operand" "")))
        !          1330: ;;   (set (match_dup 0)
        !          1331: ;;     (and:SI (match_dup 0)
        !          1332: ;;             (match_operand 2 "immediate_operand" "")))
        !          1333: ;;   (set (cc0) (match_dup 0))
        !          1334: ;;   (set (pc)
        !          1335: ;;     (if_then_else (ne (cc0) (const_int 0))
        !          1336: ;;                   (pc)
        !          1337: ;;                   (label_ref (match_operand 3 "" ""))))]
        !          1338: ;;  "dead_or_set_p (prev_real_insn (insn), operands[0])
        !          1339: ;;   && GET_CODE (operands[2]) == CONST_INT && GET_CODE (operands[1]) == CONST_INT
        !          1340: ;;   && const_ok_for_arm (INTVAL (operands[2]) << INTVAL (operands[1]))"
        !          1341: ;;  "*
        !          1342: ;;  operands[2] = gen_rtx (CONST_INT, VOIDmode,
        !          1343: ;;                         INTVAL (operands[2]) << INTVAL (operands[1]));
        !          1344: ;;  arm_output_asm_insn (\"tst\\t%0, %2\\t\\t@ ph test bitfield\", operands);
        !          1345: ;;  return (arm_output_asm_insn (\"beq\\t%l3\", operands));
        !          1346: ;;")
        !          1347: 
        !          1348: ;; This allows negative constants to be compared since GCC appears not to try
        !          1349: ;; converting them with a NEG.
        !          1350: 
        !          1351: ;;(define_peephole
        !          1352: ;;  [(set (match_operand:SI 2 "register_operand" "=r")
        !          1353: ;;        (match_operand:SI 1 "immediate_operand" "n"))
        !          1354: ;;   (set (cc0)
        !          1355: ;;        (compare (match_operand:SI 0 "register_operand" "r")
        !          1356: ;;                 (match_dup 1)))]
        !          1357: ;;  "const_ok_for_arm (-INTVAL (operands[1]))
        !          1358: ;;   && dead_or_set_p (prev_real_insn (insn), operands[0])"
        !          1359: ;;  "*
        !          1360: ;;  operands[1] = gen_rtx (CONST_INT, VOIDmode, -INTVAL (operands[1]));
        !          1361: ;;  return (arm_output_asm_insn (\"cmn\\t%0, %1\\t\\t@ ph negate comparison\", operands));
        !          1362: ;;")

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