Annotation of gcc/config/m88k/m88k.md, revision 1.1.1.1

1.1       root        1: ;;- Machine description for the Motorola 88000 for GNU C compiler
                      2: ;;  Copyright (C) 1988, 1989, 1990, 1991 Free Software Foundation, Inc.
                      3: ;;  Contributed by Michael Tiemann ([email protected])
                      4: ;;  Additional changes by Michael Meissner ([email protected])
                      5: ;;  Version 2 port by Tom Wood ([email protected])
                      6: 
                      7: ;; This file is part of GNU CC.
                      8: 
                      9: ;; GNU CC is free software; you can redistribute it and/or modify
                     10: ;; it under the terms of the GNU General Public License as published by
                     11: ;; the Free Software Foundation; either version 2, or (at your option)
                     12: ;; any later version.
                     13: 
                     14: ;; GNU CC is distributed in the hope that it will be useful,
                     15: ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
                     16: ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     17: ;; GNU General Public License for more details.
                     18: 
                     19: ;; You should have received a copy of the GNU General Public License
                     20: ;; along with GNU CC; see the file COPYING.  If not, write to
                     21: ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
                     22: 
                     23: 
                     24: ;;- See file "rtl.def" for documentation on define_insn, match_*, et. al.
                     25: 
                     26: ;; SCCS rev field.  This is a NOP, just to get the SCCS id into the
                     27: ;; program image.
                     28: (define_expand "m88k_sccs_id"
                     29:   [(match_operand:SI 0 "" "")]
                     30:   ""
                     31:   "{ static char sccs_id[] = \"@(#)m88k.md     2.3.3.2 12/16/92 08:26:12\";
                     32:      FAIL; }")
                     33: 
                     34: ;; Attribute specifications
                     35: 
                     36: ; Target CPU.
                     37: (define_attr "cpu" "m88100,m88110,m88000"
                     38:   (const (symbol_ref "m88k_cpu")))
                     39: 
                     40: ; Type of each instruction.  Default is arithmetic.
                     41: ; I'd like to write the list as this, but genattrtab won't accept it.
                     42: ;
                     43: ; "branch,jump,call,                   ; flow-control instructions
                     44: ;  load,store,loadd,loada,             ; data unit instructions
                     45: ;  spadd,dpadd,spcmp,dpcmp,spdiv,dpdiv,idiv, ; FPU add instructions
                     46: ;  spmul,dpmul,imul,                   ; FPU multiply instructions
                     47: ;  arith,bit,mov                       ; integer unit instructions
                     48: ;  marith,weird"                       ; multi-word instructions
                     49: 
                     50: ; Classification of each insn.  Some insns of TYPE_BRANCH are multi-word.
                     51: (define_attr "type"
                     52:   "branch,jump,call,load,store,loadd,loada,spadd,dpadd,spcmp,dpcmp,spdiv,dpdiv,idiv,spmul,dpmul,imul,arith,bit,mov,marith,weird"
                     53:   (const_string "arith"))
                     54: 
                     55: (define_attr "fpu" "yes,no"
                     56:   (if_then_else
                     57:    (eq_attr "type" "spmul,dpmul,imul,spadd,dpadd,spcmp,dpcmp,spdiv,dpdiv,idiv")
                     58:    (const_string "yes") (const_string "no")))
                     59: 
                     60: ; Length in # of instructions of each insn.  The values are not exact, but
                     61: ; are safe.
                     62: (define_attr "length" ""
                     63:   (cond [(eq_attr "type" "marith,weird,branch")
                     64:         (const_int 2)]
                     65:        (const_int 1)))
                     66: 
                     67: ; Describe a user's asm statement.
                     68: (define_asm_attributes
                     69:   [(set_attr "type" "weird")])
                     70: 
                     71: ; Define the delay slot requirements for branches and calls.
                     72: ; The m88100 annuls instructions if a conditional branch is taken.
                     73: ; For insns of TYPE_BRANCH that are multi-word instructions, the
                     74: ; delay slot applies to the first instruction.
                     75: 
                     76: ; @@ For the moment, reorg.c requires that the delay slot of a branch not
                     77: ; be a call or branch.
                     78: 
                     79: (define_delay (eq_attr "type" "branch,jump")
                     80:   [(and
                     81:     (and
                     82:      (eq_attr "type" "!branch,jump,call,marith,weird") ; required.
                     83:      (eq_attr "type" "!load,loadd")) ; issue as-soon-as-possible.
                     84:     (eq_attr "fpu" "no")) ; issue as-soon-as-possible.
                     85:    (eq_attr "type" "!call,branch,jump") (nil)]) ; @@ was (const_int 1)
                     86: 
                     87: ; output_call supports an unconditional branch in the delay slot of
                     88: ; a call.  (@@ Support for this case is expected in reorg.c soon.)
                     89: 
                     90: (define_delay (eq_attr "type" "call")
                     91:   [(eq_attr "type" "!branch,call,marith,weird") ; required.
                     92:    (nil) (nil)])
                     93: 
                     94: ; An abstract block diagram of the function units for the m88100.
                     95: ;
                     96: ;                          *
                     97: ;                          |
                     98: ;                      +---v----+
                     99: ;                      | decode |
                    100: ;                      +-vv-v-v-+       fpu
                    101: ;             ,----------'| | `----------------------.
                    102: ;             |           | |                        | ,-----.
                    103: ;        load |     store | | arith                  | |     |
                    104: ;             |           | |                      +-v-v-+   | dp source
                    105: ;             |           | |                      | fp1 |---'
                    106: ;     store    |          | |      div             +-v-v-+
                    107: ;   ,------.   |          | |    ,-----. ,-----------' `-----------.
                    108: ;   |     |   |           | |    |     | |                         |
                    109: ;   |  +--v---v--+    ,---' |    |   +-v-v---+                 +---v---+
                    110: ;   |  | stage 2 |    |     |    `---| add 2 |                 | mul 2 |
                    111: ;   |  +---------+    |  +--v--+     +-------+           imul  +-------+
                    112: ;   |  | stage 1 |    |  | alu |     | add 3 |        ,--------| mul 3 |
                    113: ;   |  +---------+    |  +--v--+     +-------+        |        +-------+
                    114: ;   |  | stage 0 |    |     |        | add 4 |        |        | mul 4 |
                    115: ;   |  +--v---v--+    |     |        +---v---+        |        +-------+
                    116: ;   |     |   |       |     |            |            |        | mul 5 |
                    117: ;   |     *   |       |     |            |            |        +---v---+
                    118: ;   |         |       |     |            |       +----v----+       |
                    119: ;   |    load |       |     |     fp add `------>| fp last |<------' fp mul
                    120: ;   |         |       |     |                    +---v-v--^+
                    121: ;   |         |       |     |                        | |  |
                    122: ;   |         |       |     |                        | `--' dp dest
                    123: ;   |         |    +--v-----v--+                     |
                    124: ;   |         `--->| writeback |<--------------------'
                    125: ;   |              +--v-----v--+
                    126: ;   |                 |     |
                    127: ;   `------------------'     *
                    128: ;
                    129: ; The decode unit need not be specified.
                    130: ; Consideration of writeback contention is critical to superb scheduling.
                    131: ;
                    132: ; (define_function_unit NAME MULTIPLICITY SIMULTANEITY
                    133: ;                      TEST READY-DELAY ISSUE-DELAY [CONFLICT-LIST])
                    134: 
                    135: ; Describing the '100 alu is currently not useful.
                    136: ;(define_function_unit "alu" 1 0 (eq_attr "type"
                    137: ;                                       "!store,marith,weird") 1 0)
                    138: ;(define_function_unit "alu" 1 0 (eq_attr "type" "marith,weird") 2 0)
                    139: 
                    140: (define_function_unit "alu" 1 0
                    141:   (and (eq_attr "type" "loada,arith,mov") (eq_attr "cpu" "!m88100")) 2 0)
                    142: (define_function_unit "alu" 1 0
                    143:   (and (eq_attr "type" "marith,weird") (eq_attr "cpu" "!m88100")) 4 0)
                    144: 
                    145: (define_function_unit "bit" 1 0
                    146:   (and (eq_attr "type" "bit") (eq_attr "cpu" "!m88100")) 2 2)
                    147: 
                    148: (define_function_unit "mem100" 1 0
                    149:   (and (eq_attr "type" "store,loada") (eq_attr "cpu" "m88100")) 1 0)
                    150: (define_function_unit "mem100" 1 0
                    151:   (and (eq_attr "type" "load") (eq_attr "cpu" "m88100")) 3 0)
                    152: (define_function_unit "mem100" 1 0
                    153:   (and (eq_attr "type" "loadd") (eq_attr "cpu" "m88100")) 3 2)
                    154: 
                    155: (define_function_unit "mem110" 1 0
                    156:   (and (eq_attr "type" "load,loadd") (eq_attr "cpu" "!m88100")) 3 2)
                    157: (define_function_unit "mem110" 1 0
                    158:   (and (eq_attr "type" "store") (eq_attr "cpu" "!m88100")) 1 2)
                    159: 
                    160: ; The times are adjusted to include fp1 and fplast, but then are further
                    161: ; adjusted based on the actual generated code.  The notation to the right
                    162: ; is the total latency.  A range denotes a group of instructions and/or
                    163: ; conditions (the extra clock of fplast time with some sequences).
                    164: 
                    165: (define_function_unit "fpmul100" 1 0
                    166:   (and (eq_attr "type" "spmul") (eq_attr "cpu" "m88100")) 4 0)         ; 6-8
                    167: (define_function_unit "fpmul100" 1 0
                    168:   (and (eq_attr "type" "dpmul") (eq_attr "cpu" "m88100")) 7 0)         ; 9-10
                    169: (define_function_unit "fpmul100" 1 0
                    170:   (and (eq_attr "type" "imul") (eq_attr "cpu" "m88100")) 3 0)          ; 4
                    171: 
                    172: (define_function_unit "fpmul110" 1 0
                    173:   (and (eq_attr "type" "imul,spmul,dpmul")
                    174:        (eq_attr "cpu" "!m88100")) 5 2)                                 ; 3
                    175: 
                    176: (define_function_unit "fpadd100" 1 5
                    177:   (and (eq_attr "type" "spadd,spcmp") (eq_attr "cpu" "m88100")) 3 0)   ; 5-6
                    178: (define_function_unit "fpadd100" 1 5
                    179:   (and (eq_attr "type" "dpadd,dpcmp") (eq_attr "cpu" "m88100")) 4 0)   ; 6-7
                    180: 
                    181: (define_function_unit "fpadd110" 1 0
                    182:   (and (eq_attr "type" "spadd,dpadd") (eq_attr "cpu" "!m88100")) 5 2)  ; 3
                    183: (define_function_unit "fpadd110" 1 0
                    184:   (and (eq_attr "type" "spcmp,dpcmp") (eq_attr "cpu" "!m88100")) 2 2)  ; 1
                    185: 
                    186: (define_function_unit "fpadd100" 1 5
                    187:   (and (eq_attr "type" "spdiv") (eq_attr "cpu" "m88100")) 30 0)                ; 30-31
                    188: (define_function_unit "fpadd100" 1 5
                    189:   (and (eq_attr "type" "dpdiv") (eq_attr "cpu" "m88100")) 60 0)                ; 60-61
                    190: (define_function_unit "fpadd100" 1 5
                    191:   (and (eq_attr "type" "idiv") (eq_attr "cpu" "m88100")) 38 0)         ; 38
                    192: 
                    193: (define_function_unit "div" 1 1
                    194:   (and (eq_attr "type" "spdiv") (eq_attr "cpu" "!m88100")) 25 2)       ; 13
                    195: (define_function_unit "div" 1 1
                    196:   (and (eq_attr "type" "dpdiv") (eq_attr "cpu" "!m88100")) 45 2)       ; 23
                    197: (define_function_unit "div" 1 1
                    198:   (and (eq_attr "type" "idiv") (eq_attr "cpu" "!m88100")) 35 2)                ; 18
                    199: 
                    200: ;; Superoptimizer sequences
                    201: 
                    202: ;; geu+: { r = ((unsigned_word) v0 >= (unsigned_word) v1) + v2; }
                    203: ;;      subu.co r5,r2,r3
                    204: ;;      addu.cio r6,r4,r0
                    205: 
                    206: (define_split
                    207:   [(set (match_operand:SI 0 "register_operand" "=r")
                    208:        (minus:SI (match_operand:SI 1 "register_operand" "r")
                    209:                  (geu:SI (match_operand:SI 2 "register_operand" "r")
                    210:                          (match_operand:SI 3 "register_operand" "r"))))]
                    211:   ""
                    212:   [(set (reg:CC 0) (unspec:CC [(match_dup 2) (match_dup 3)] 1))
                    213:    (set (match_dup 0)
                    214:        (plus:SI (match_dup 1)
                    215:                 (unspec:SI [(const_int 0)
                    216:                             (reg:CC 0)] 0)))]
                    217:   "")
                    218: 
                    219: ;; leu+: { r = ((unsigned_word) v0 <= (unsigned_word) v1) + v2; }
                    220: ;;      subu.co r5,r3,r2
                    221: ;;      addu.cio r6,r4,r0
                    222: 
                    223: (define_split
                    224:   [(set (match_operand:SI 0 "register_operand" "=r")
                    225:        (minus:SI (match_operand:SI 1 "register_operand" "r")
                    226:                  (leu:SI (match_operand:SI 3 "register_operand" "r")
                    227:                          (match_operand:SI 2 "register_operand" "r"))))]
                    228:   ""
                    229:   [(set (reg:CC 0) (unspec:CC [(match_dup 2) (match_dup 3)] 1))
                    230:    (set (match_dup 0)
                    231:        (plus:SI (match_dup 1)
                    232:                 (unspec:SI [(const_int 0)
                    233:                             (reg:CC 0)] 0)))]
                    234:   "")
                    235: 
                    236: ;; eq0+: { r = (v0 == 0) + v1; }
                    237: ;;      subu.co r4,r0,r2
                    238: ;;      addu.cio r5,r3,r0
                    239: 
                    240: (define_split
                    241:   [(set (match_operand:SI 0 "register_operand" "=r")
                    242:        (minus:SI (match_operand:SI 1 "register_operand" "r")
                    243:                  (eq:SI (match_operand:SI 2 "register_operand" "r")
                    244:                         (const_int 0))))]
                    245:   ""
                    246:   [(set (reg:CC 0) (unspec:CC [(const_int 0) (match_dup 2)] 1))
                    247:    (set (match_dup 0)
                    248:        (plus:SI (match_dup 1)
                    249:                 (unspec:SI [(const_int 0)
                    250:                             (reg:CC 0)] 0)))]
                    251:   "")
                    252: 
                    253: ;; ltu-:  { r = v2 - ((unsigned_word) v0 < (unsigned_word) v1); }
                    254: ;;      subu.co r5,r2,r3
                    255: ;;      subu.cio r6,r4,r0
                    256: 
                    257: (define_split
                    258:   [(set (match_operand:SI 0 "register_operand" "=r")
                    259:        (plus:SI (ltu:SI (match_operand:SI 2 "register_operand" "r")
                    260:                         (match_operand:SI 3 "register_operand" "r"))
                    261:                 (match_operand:SI 1 "register_operand" "r")))]
                    262:   ""
                    263:   [(set (reg:CC 0) (unspec:CC [(match_dup 2) (match_dup 3)] 1))
                    264:    (set (match_dup 0)
                    265:        (minus:SI (match_dup 1)
                    266:                  (unspec:SI [(const_int 0)
                    267:                              (reg:CC 0)] 1)))]
                    268:   "")
                    269: 
                    270: ;; gtu-: { r = v2 - ((unsigned_word) v0 > (unsigned_word) v1); }
                    271: ;;      subu.co r5,r3,r2
                    272: ;;      subu.cio r6,r4,r0
                    273: 
                    274: (define_split
                    275:   [(set (match_operand:SI 0 "register_operand" "=r")
                    276:        (plus:SI (gtu:SI (match_operand:SI 3 "register_operand" "r")
                    277:                         (match_operand:SI 2 "register_operand" "r"))
                    278:                 (match_operand:SI 1 "register_operand" "r")))]
                    279:   ""
                    280:   [(set (reg:CC 0) (unspec:CC [(match_dup 2) (match_dup 3)] 1))
                    281:    (set (match_dup 0)
                    282:        (minus:SI (match_dup 1)
                    283:                 (unspec:SI [(const_int 0)
                    284:                             (reg:CC 0)] 1)))]
                    285:   "")
                    286: 
                    287: ;; ne0-: { r = v1 - (v0 != 0); }
                    288: ;;      subu.co r4,r0,r2
                    289: ;;      subu.cio r5,r3,r0
                    290: 
                    291: (define_split
                    292:   [(set (match_operand:SI 0 "register_operand" "=r")
                    293:        (plus:SI (ne:SI (match_operand:SI 2 "register_operand" "r")
                    294:                        (const_int 0))
                    295:                 (match_operand:SI 1 "register_operand" "r")))]
                    296:   ""
                    297:   [(set (reg:CC 0) (unspec:CC [(const_int 0) (match_dup 2)] 1))
                    298:    (set (match_dup 0)
                    299:        (minus:SI (match_dup 1)
                    300:                  (unspec:SI [(const_int 0)
                    301:                              (reg:CC 0)] 1)))]
                    302:   "")
                    303: 
                    304: ;; ges0-: { r = v1 - ((signed_word) v0 >= 0); }
                    305: ;;     addu.co r4,r2,r2
                    306: ;;     subu.cio r5,r3,r0
                    307: 
                    308: (define_split
                    309:   [(set (match_operand:SI 0 "register_operand" "=r")
                    310:        (minus:SI (match_operand:SI 1 "register_operand" "r")
                    311:                  (xor:SI (lshiftrt:SI
                    312:                           (match_operand:SI 2 "register_operand" "r")
                    313:                           (const_int 31))
                    314:                          (const_int 1))))]
                    315:   ""
                    316:   [(set (reg:CC 0) (unspec:CC [(match_dup 2) (match_dup 2)] 0))
                    317:    (set (match_dup 0)
                    318:        (minus:SI (match_dup 1)
                    319:                  (unspec:SI [(const_int 0)
                    320:                              (reg:CC 0)] 1)))]
                    321:   "")
                    322: 
                    323: ;; This rich set of complex patterns are mostly due to Torbjorn Granlund
                    324: ;; ([email protected]).  They've changed since then, so don't complain to him
                    325: ;; if they don't work right.
                    326: 
                    327: ;; Regarding shifts, gen_lshlsi3 generates ASHIFT.  LSHIFT opcodes are
                    328: ;; not produced and should not normally occur.  Also, the gen functions
                    329: ;; produce the necessary insns to support TARGET_*_LARGE_SHIFT, so nothing
                    330: ;; special needs to be done here.
                    331: 
                    332: ;; Optimize possible cases of the set instruction.
                    333: 
                    334: (define_insn ""
                    335:   [(set (match_operand:SI 0 "register_operand" "=r")
                    336:         (ashift:SI (const_int -1)
                    337:                    (match_operand:SI 1 "register_operand" "r")))]
                    338:   ""
                    339:   "set %0,%#r0,%1"
                    340:   [(set_attr "type" "bit")])
                    341: 
                    342: (define_insn ""
                    343:   [(set (match_operand:SI 0 "register_operand" "=r")
                    344:         (ior:SI (ashift:SI (const_int -1)
                    345:                            (match_operand:SI 1 "register_operand" "r"))
                    346:                 (match_operand:SI 2 "register_operand" "r")))]
                    347:   ""
                    348:   "set %0,%2,%1"
                    349:   [(set_attr "type" "bit")])
                    350: 
                    351: (define_insn ""
                    352:   [(set (match_operand:SI 0 "register_operand" "=r")
                    353:         (ior:SI (match_operand:SI 1 "register_operand" "r")
                    354:                 (ashift:SI (const_int -1)
                    355:                            (match_operand:SI 2 "register_operand" "r"))))]
                    356:   ""
                    357:   "set %0,%1,%2"
                    358:   [(set_attr "type" "bit")])
                    359: 
                    360: ;; Optimize possible cases of the mak instruction.
                    361: 
                    362: (define_insn ""
                    363:   [(set (match_operand:SI 0 "register_operand" "=r")
                    364:        (and:SI (ashift:SI (match_operand:SI 1 "register_operand" "r")
                    365:                           (match_operand:SI 2 "int5_operand" ""))
                    366:                (match_operand:SI 3 "immediate_operand" "n")))]
                    367:   "mak_mask_p (INTVAL (operands[3]) >> INTVAL (operands[2]))"
                    368:   "*
                    369: {
                    370:   operands[4] = gen_rtx (CONST_INT, SImode,
                    371:                         exact_log2 (1 + (INTVAL (operands[3])
                    372:                                          >> INTVAL(operands[2]))));
                    373:   return \"mak %0,%1,%4<%2>\";
                    374: }"
                    375:   [(set_attr "type" "bit")])
                    376: 
                    377: ;; Optimize possible cases of output_and.
                    378: 
                    379: (define_insn ""
                    380:   [(set (match_operand:SI 0 "register_operand" "=r")
                    381:        (ashift:SI (zero_extract:SI (match_operand:SI 1 "register_operand" "r")
                    382:                                    (match_operand:SI 2 "int5_operand" "")
                    383:                                    (match_operand:SI 3 "int5_operand" ""))
                    384:                   (match_operand:SI 4 "int5_operand" "")))]
                    385:   "INTVAL (operands[2]) + INTVAL (operands[3]) + INTVAL (operands[4]) == 32"
                    386:   "*
                    387: {
                    388:   operands[2]
                    389:     = gen_rtx (CONST_INT, SImode,
                    390:               ((1 << INTVAL (operands[2])) - 1) << INTVAL (operands[4]));
                    391:   return output_and (operands);
                    392: }"
                    393:   [(set_attr "type" "marith")]) ; arith,bit,marith.  length is 1 or 2.
                    394: 
                    395: ;; Improve logical operations on compare words
                    396: ;;
                    397: ;; We define all logical operations on CCmode values to preserve the pairwise
                    398: ;; relationship of the compare bits.  This allows a future branch prediction
                    399: ;; pass the degree of freedom needed to change and/bb0-le into or/bb1-gt.
                    400: ;;
                    401: ;; Opportunities arise when conditional expressions using && and || are made
                    402: ;; unconditional.  When these are used to branch, the sequence is
                    403: ;; cmp/cmp/extu/extu/{and,or}/bcnd-{eq0,ne0}.  When these are used to create
                    404: ;; a value, the sequence is cmp/cmp/extu/extu/{and,or} for 1 or 0 or
                    405: ;; cmp/cmp/ext/ext/{and,or} for -1 or 0.
                    406: ;;
                    407: ;; When the extracted conditions are the same, the define_split patterns
                    408: ;; below change extu/extu/{and,or} into {and,or}/extu.  If the reversed
                    409: ;; conditions match, one compare word can be complimented, resulting in
                    410: ;; {and.c,or.c}/extu.  These changes are done for ext/ext/{and,or} as well.
                    411: ;; If the conditions don't line up, one can be rotated.  To keep the pairwise
                    412: ;; relationship, it may be necessary to both rotate and compliment.  Rotating
                    413: ;; makes branching cheaper, but doesn't help (or hurt) creating a value, so
                    414: ;; we don't do this for ext/ext/{and,or}.
                    415: ;;
                    416: ;; These changes result in the sequence extu/bcnd-{eq0,ne0} which is combined
                    417: ;; into an alternate form of bb0 and bb1.
                    418: 
                    419: (define_split
                    420:   [(set (match_operand:SI 0 "register_operand" "=r")
                    421:        (ior:SI (neg:SI 
                    422:                 (match_operator 1 "relop"
                    423:                                 [(match_operand:CC 2 "register_operand" "%r")
                    424:                                  (const_int 0)]))
                    425:                (neg:SI
                    426:                 (match_operator 3 "relop"
                    427:                                 [(match_operand:CC 4 "register_operand" "r")
                    428:                                  (const_int 0)]))))
                    429:    (clobber (match_operand:SI 5 "register_operand" "=r"))]
                    430:   ""
                    431:   [(set (match_dup 5)
                    432:        (ior:CC (match_dup 4)
                    433:                (match_dup 2)))
                    434:    (set (match_dup 0)
                    435:        (neg:SI (match_op_dup 1 [(match_dup 5) (const_int 0)])))]
                    436:   "operands[5] = gen_rtx (SUBREG, CCmode, operands[5], 0);
                    437:    if (GET_CODE (operands[1]) == GET_CODE (operands[3]))
                    438:      ; /* The conditions match.  */
                    439:    else if (GET_CODE (operands[1])
                    440:            == reverse_condition (GET_CODE (operands[3])))
                    441:      /* Reverse the condition by complimenting the compare word.  */
                    442:      operands[4] = gen_rtx (NOT, CCmode, operands[4]);
                    443:    else
                    444:      {
                    445:        /* Make the condition pairs line up by rotating the compare word.  */
                    446:        int cv1 = condition_value (operands[1]);
                    447:        int cv2 = condition_value (operands[3]);
                    448: 
                    449:        operands[4] = gen_rtx (ROTATE, CCmode, operands[4],
                    450:                              gen_rtx (CONST_INT, VOIDmode,
                    451:                                       ((cv2 & ~1) - (cv1 & ~1)) & 0x1f));
                    452:        /* Reverse the condition if needed.  */
                    453:        if ((cv1 & 1) != (cv2 & 1))
                    454:         operands[4] = gen_rtx (NOT, CCmode, operands[4]);
                    455:      }")
                    456: 
                    457: (define_split
                    458:   [(set (match_operand:SI 0 "register_operand" "=r")
                    459:        (ior:SI (match_operator 1 "relop"
                    460:                                [(match_operand:CC 2 "register_operand" "%r")
                    461:                                 (const_int 0)])
                    462:                (match_operator 3 "relop"
                    463:                                [(match_operand:CC 4 "register_operand" "r")
                    464:                                 (const_int 0)])))
                    465:    (clobber (match_operand:SI 5 "register_operand" "=r"))]
                    466:   "GET_CODE (operands[1]) == GET_CODE (operands[3])
                    467:    || GET_CODE (operands[1]) == reverse_condition (GET_CODE (operands[3]))"
                    468:   [(set (match_dup 5)
                    469:        (ior:CC (match_dup 4)
                    470:                (match_dup 2)))
                    471:    (set (match_dup 0)
                    472:        (match_op_dup 1 [(match_dup 5) (const_int 0)]))]
                    473:   "operands[5] = gen_rtx (SUBREG, CCmode, operands[5], 0);
                    474:    /* Reverse the condition by  complimenting the compare word.  */
                    475:    if (GET_CODE (operands[1]) != GET_CODE (operands[3]))
                    476:       operands[4] = gen_rtx (NOT, CCmode, operands[4]);")
                    477: 
                    478: (define_split
                    479:   [(set (match_operand:SI 0 "register_operand" "=r")
                    480:        (and:SI (neg:SI 
                    481:                 (match_operator 1 "relop"
                    482:                                 [(match_operand:CC 2 "register_operand" "%r")
                    483:                                  (const_int 0)]))
                    484:                (neg:SI
                    485:                 (match_operator 3 "relop"
                    486:                                 [(match_operand:CC 4 "register_operand" "r")
                    487:                                  (const_int 0)]))))
                    488:    (clobber (match_operand:SI 5 "register_operand" "=r"))]
                    489:   ""
                    490:   [(set (match_dup 5)
                    491:        (and:CC (match_dup 4)
                    492:                (match_dup 2)))
                    493:    (set (match_dup 0)
                    494:        (neg:SI (match_op_dup 1 [(match_dup 5) (const_int 0)])))]
                    495:   "operands[5] = gen_rtx (SUBREG, CCmode, operands[5], 0);
                    496:    if (GET_CODE (operands[1]) == GET_CODE (operands[3]))
                    497:      ; /* The conditions match.  */
                    498:    else if (GET_CODE (operands[1])
                    499:            == reverse_condition (GET_CODE (operands[3])))
                    500:      /* Reverse the condition by complimenting the compare word.  */
                    501:      operands[4] = gen_rtx (NOT, CCmode, operands[4]);
                    502:    else
                    503:      {
                    504:        /* Make the condition pairs line up by rotating the compare word.  */
                    505:        int cv1 = condition_value (operands[1]);
                    506:        int cv2 = condition_value (operands[3]);
                    507: 
                    508:        operands[4] = gen_rtx (ROTATE, CCmode, operands[4],
                    509:                              gen_rtx (CONST_INT, VOIDmode,
                    510:                                       ((cv2 & ~1) - (cv1 & ~1)) & 0x1f));
                    511:        /* Reverse the condition if needed.  */
                    512:        if ((cv1 & 1) != (cv2 & 1))
                    513:         operands[4] = gen_rtx (NOT, CCmode, operands[4]);
                    514:      }")
                    515: 
                    516: (define_split
                    517:   [(set (match_operand:SI 0 "register_operand" "=r")
                    518:        (and:SI (match_operator 1 "relop"
                    519:                                [(match_operand:CC 2 "register_operand" "%r")
                    520:                                 (const_int 0)])
                    521:                (match_operator 3 "relop"
                    522:                                [(match_operand:CC 4 "register_operand" "r")
                    523:                                 (const_int 0)])))
                    524:    (clobber (match_operand:SI 5 "register_operand" "=r"))]
                    525:   "GET_CODE (operands[1]) == GET_CODE (operands[3])
                    526:    || GET_CODE (operands[1]) == reverse_condition (GET_CODE (operands[3]))"
                    527:   [(set (match_dup 5)
                    528:        (and:CC (match_dup 4)
                    529:                (match_dup 2)))
                    530:    (set (match_dup 0)
                    531:        (match_op_dup 1 [(match_dup 5) (const_int 0)]))]
                    532:   "operands[5] = gen_rtx (SUBREG, CCmode, operands[5], 0);
                    533:    /* Reverse the condition by  complimenting the compare word.  */
                    534:    if (GET_CODE (operands[1]) != GET_CODE (operands[3]))
                    535:       operands[4] = gen_rtx (NOT, CCmode, operands[4]);")
                    536: 
                    537: ;; Logical operations on compare words.
                    538: 
                    539: (define_insn ""
                    540:   [(set (match_operand:CC 0 "register_operand" "=r")
                    541:        (and:CC (not:CC (match_operand:CC 1 "register_operand" "r"))
                    542:                (match_operand:CC 2 "register_operand" "r")))]
                    543:   ""
                    544:   "and.c %0,%2,%1")
                    545: 
                    546: 
                    547: (define_insn ""
                    548:   [(set (match_operand:CC 0 "register_operand" "=r")
                    549:        (and:CC (match_operand:CC 1 "register_operand" "%r")
                    550:                (match_operand:CC 2 "register_operand" "r")))]
                    551:   ""
                    552:   "and %0,%1,%2")
                    553: 
                    554: (define_insn ""
                    555:   [(set (match_operand:CC 0 "register_operand" "=r")
                    556:        (ior:CC (not:CC (match_operand:CC 1 "register_operand" "r"))
                    557:                (match_operand:CC 2 "register_operand" "r")))]
                    558:   ""
                    559:   "or.c %0,%2,%1")
                    560: 
                    561: (define_insn ""
                    562:   [(set (match_operand:CC 0 "register_operand" "=r")
                    563:        (ior:CC (match_operand:CC 1 "register_operand" "%r")
                    564:                (match_operand:CC 2 "register_operand" "r")))]
                    565:   ""
                    566:   "or %0,%1,%2")
                    567: 
                    568: (define_insn ""
                    569:   [(set (match_operand:CC 0 "register_operand" "=r")
                    570:        (rotate:CC (match_operand:CC 1 "register_operand" "r")
                    571:                   (match_operand:CC 2 "int5_operand" "")))]
                    572:   ""
                    573:   "rot %0,%1,%2"
                    574:   [(set_attr "type" "bit")])
                    575: 
                    576: ;; rotate/and[.c] and rotate/ior[.c]
                    577: 
                    578: (define_split
                    579:   [(set (match_operand:CC 0 "register_operand" "=r")
                    580:        (ior:CC (rotate:CC (match_operand:CC 1 "register_operand" "r")
                    581:                           (match_operand:CC 2 "int5_operand" ""))
                    582:                (match_operand:CC 3 "register_operand" "r")))
                    583:    (clobber (match_operand:CC 4 "register_operand" "=r"))]
                    584:   ""
                    585:   [(set (match_dup 4)
                    586:        (rotate:CC (match_dup 1) (match_dup 2)))
                    587:    (set (match_dup 0)
                    588:        (ior:CC (match_dup 4) (match_dup 3)))]
                    589:   "")
                    590: 
                    591: (define_insn ""
                    592:   [(set (match_operand:CC 0 "register_operand" "=r")
                    593:        (ior:CC (rotate:CC (match_operand:CC 1 "register_operand" "r")
                    594:                           (match_operand:CC 2 "int5_operand" ""))
                    595:                (match_operand:CC 3 "register_operand" "r")))
                    596:    (clobber (match_scratch:CC 4 "=r"))]
                    597:   ""
                    598:   "#")
                    599: 
                    600: (define_split
                    601:   [(set (match_operand:CC 0 "register_operand" "=r")
                    602:        (ior:CC (not:CC (rotate:CC (match_operand:CC 1 "register_operand" "r")
                    603:                                   (match_operand:CC 2 "int5_operand" "")))
                    604:                (match_operand:CC 3 "register_operand" "r")))
                    605:    (clobber (match_operand:CC 4 "register_operand" "=r"))]
                    606:   ""
                    607:   [(set (match_dup 4)
                    608:        (rotate:CC (match_dup 1) (match_dup 2)))
                    609:    (set (match_dup 0)
                    610:        (ior:CC (not:CC (match_dup 4)) (match_dup 3)))]
                    611:   "")
                    612: 
                    613: (define_insn ""
                    614:   [(set (match_operand:CC 0 "register_operand" "=r")
                    615:        (ior:CC (not:CC (rotate:CC (match_operand:CC 1 "register_operand" "r")
                    616:                                   (match_operand:CC 2 "int5_operand" "")))
                    617:                (match_operand:CC 3 "register_operand" "r")))
                    618:    (clobber (match_scratch:CC 4 "=r"))]
                    619:   ""
                    620:   "#")
                    621: 
                    622: (define_split
                    623:   [(set (match_operand:CC 0 "register_operand" "=r")
                    624:        (and:CC (rotate:CC (match_operand:CC 1 "register_operand" "r")
                    625:                           (match_operand:CC 2 "int5_operand" ""))
                    626:                (match_operand:CC 3 "register_operand" "r")))
                    627:    (clobber (match_operand:CC 4 "register_operand" "=r"))]
                    628:   ""
                    629:   [(set (match_dup 4)
                    630:        (rotate:CC (match_dup 1) (match_dup 2)))
                    631:    (set (match_dup 0)
                    632:        (and:CC (match_dup 4) (match_dup 3)))]
                    633:   "")
                    634: 
                    635: (define_insn ""
                    636:   [(set (match_operand:CC 0 "register_operand" "=r")
                    637:        (and:CC (rotate:CC (match_operand:CC 1 "register_operand" "r")
                    638:                           (match_operand:CC 2 "int5_operand" ""))
                    639:                (match_operand:CC 3 "register_operand" "r")))
                    640:    (clobber (match_scratch:CC 4 "=r"))]
                    641:   ""
                    642:   "#")
                    643: 
                    644: (define_split
                    645:   [(set (match_operand:CC 0 "register_operand" "=r")
                    646:        (and:CC (not:CC (rotate:CC (match_operand:CC 1 "register_operand" "r")
                    647:                                   (match_operand:CC 2 "int5_operand" "")))
                    648:                (match_operand:CC 3 "register_operand" "r")))
                    649:    (clobber (match_operand:CC 4 "register_operand" "=r"))]
                    650:   ""
                    651:   [(set (match_dup 4)
                    652:        (rotate:CC (match_dup 1) (match_dup 2)))
                    653:    (set (match_dup 0)
                    654:        (and:CC (not:CC (match_dup 4)) (match_dup 3)))]
                    655:   "")
                    656: 
                    657: (define_insn ""
                    658:   [(set (match_operand:CC 0 "register_operand" "=r")
                    659:        (and:CC (not:CC (rotate:CC (match_operand:CC 1 "register_operand" "r")
                    660:                                   (match_operand:CC 2 "int5_operand" "")))
                    661:                (match_operand:CC 3 "register_operand" "r")))
                    662:    (clobber (match_scratch:CC 4 "=r"))]
                    663:   ""
                    664:   "#")
                    665: 
                    666: ;; Recognize bcnd instructions for integer values.  This is distinguished
                    667: ;; from a conditional branch instruction (below) with SImode instead of
                    668: ;; CCmode.
                    669: 
                    670: (define_insn ""
                    671:   [(set (pc)
                    672:        (if_then_else
                    673:         (match_operator 0 "relop_no_unsigned"
                    674:                         [(match_operand:SI 1 "register_operand" "r")
                    675:                          (const_int 0)])
                    676:         (match_operand 2 "pc_or_label_ref" "")
                    677:         (match_operand 3 "pc_or_label_ref" "")))]
                    678:   ""
                    679:   "bcnd%. %R3%B0,%1,%P2%P3"
                    680:   [(set_attr "type" "branch")])
                    681: 
                    682: ;; Recognize tests for sign and zero.
                    683: 
                    684: (define_insn ""
                    685:   [(set (pc)
                    686:        (if_then_else
                    687:         (match_operator 0 "equality_op"
                    688:                         [(match_operand:SI 1 "register_operand" "r")
                    689:                          (const_int -2147483648)])
                    690:         (match_operand 2 "pc_or_label_ref" "")
                    691:         (match_operand 3 "pc_or_label_ref" "")))]
                    692:   ""
                    693:   "bcnd%. %R3%E0,%1,%P2%P3"
                    694:   [(set_attr "type" "branch")])
                    695: 
                    696: (define_insn ""
                    697:   [(set (pc)
                    698:        (if_then_else
                    699:         (match_operator 0 "equality_op"
                    700:                         [(zero_extract:SI
                    701:                           (match_operand:SI 1 "register_operand" "r")
                    702:                           (const_int 31)
                    703:                           (const_int 1))
                    704:                          (const_int 0)])
                    705:         (match_operand 2 "pc_or_label_ref" "")
                    706:         (match_operand 3 "pc_or_label_ref" "")))]
                    707:   ""
                    708:   "bcnd%. %R3%D0,%1,%P2%P3"
                    709:   [(set_attr "type" "branch")])
                    710: 
                    711: ;; Recognize bcnd instructions for double integer values
                    712: 
                    713: (define_insn ""
                    714:   [(set (pc)
                    715:        (if_then_else
                    716:         (match_operator 0 "relop_no_unsigned"
                    717:                         [(sign_extend:DI
                    718:                           (match_operand:SI 1 "register_operand" "r"))
                    719:                          (const_int 0)])
                    720:         (match_operand 2 "pc_or_label_ref" "")
                    721:         (match_operand 3 "pc_or_label_ref" "")))]
                    722:   ""
                    723:   "bcnd%. %R3%B0,%1,%P2%P3"
                    724:   [(set_attr "type" "branch")])
                    725: 
                    726: (define_insn ""
                    727:   [(set (pc)
                    728:        (if_then_else
                    729:         (match_operator 0 "equality_op"
                    730:                         [(zero_extend:DI
                    731:                           (match_operand:SI 1 "register_operand" "r"))
                    732:                          (const_int 0)])
                    733:         (match_operand 2 "pc_or_label_ref" "")
                    734:         (match_operand 3 "pc_or_label_ref" "")))]
                    735:   ""
                    736:   "bcnd%. %R3%B0,%1,%P2%P3"
                    737:   [(set_attr "type" "branch")])
                    738: 
                    739: ; @@ I doubt this is interesting until cmpdi is provided.  Anyway, it needs
                    740: ; to be reworked.
                    741: ;
                    742: ;(define_insn ""
                    743: ;  [(set (pc)
                    744: ;      (if_then_else
                    745: ;       (match_operator 0 "relop_no_unsigned"
                    746: ;                       [(match_operand:DI 1 "register_operand" "r")
                    747: ;                        (const_int 0)])
                    748: ;       (match_operand 2 "pc_or_label_ref" "")
                    749: ;       (match_operand 3 "pc_or_label_ref" "")))]
                    750: ;  ""
                    751: ;  "*
                    752: ;{
                    753: ;  switch (GET_CODE (operands[0]))
                    754: ;    {
                    755: ;    case EQ:
                    756: ;    case NE:
                    757: ;      /* I'm not sure if it's safe to use .n here.  */
                    758: ;      return \"or %!,%1,%d1\;bcnd %R3%B0,%!,%P2%P3\";
                    759: ;    case GE:
                    760: ;    case LT:
                    761: ;      return \"bcnd%. %R3%B0,%1,%P2%P3\";
                    762: ;    case GT:
                    763: ;      {
                    764: ;      rtx op2 = operands[2];
                    765: ;      operands[2] = operands[3];
                    766: ;      operands[3] = op2;
                    767: ;      }
                    768: ;    case LE:
                    769: ;      if (GET_CODE (operands[3]) == LABEL_REF)
                    770: ;      {
                    771: ;        int label_num;
                    772: ;        operands[2] = gen_label_rtx ();
                    773: ;        label_num = XINT (operands[2], 3);
                    774: ;        output_asm_insn
                    775: ;          (\"bcnd%. %#lt0,%1,%2\;or %!,%1,%d1\;bcnd %#ne0,%!,%3\", operands);
                    776: ;        output_label (label_num);
                    777: ;        return \"\";
                    778: ;      }
                    779: ;      else
                    780: ;      return \"bcnd%. %#lt0,%1,%2\;or %!,%1,%d1\;bcnd %#eq0,%!,%2\";
                    781: ;    }
                    782: ;}")
                    783: 
                    784: ;; Recognize bcnd instructions for single precision float values
                    785: ;; Exclude relational operations as they must signal NaNs.
                    786: 
                    787: ;; @@ These bcnd insns for float and double values don't seem to be recognized.
                    788: 
                    789: (define_insn ""
                    790:   [(set (pc)
                    791:        (if_then_else
                    792:         (match_operator 0 "equality_op"
                    793:                         [(float_extend:DF
                    794:                           (match_operand:SF 1 "register_operand" "r"))
                    795:                          (const_int 0)])
                    796:         (match_operand 2 "pc_or_label_ref" "")
                    797:         (match_operand 3 "pc_or_label_ref" "")))]
                    798:   ""
                    799:   "bcnd%. %R3%D0,%1,%P2%P3"
                    800:   [(set_attr "type" "branch")])
                    801: 
                    802: (define_insn ""
                    803:   [(set (pc)
                    804:        (if_then_else
                    805:         (match_operator 0 "equality_op"
                    806:                         [(match_operand:SF 1 "register_operand" "r")
                    807:                          (const_int 0)])
                    808:         (match_operand 2 "pc_or_label_ref" "")
                    809:         (match_operand 3 "pc_or_label_ref" "")))]
                    810:   ""
                    811:   "bcnd%. %R3%D0,%1,%P2%P3"
                    812:   [(set_attr "type" "branch")])
                    813: 
                    814: ;; Recognize bcnd instructions for double precision float values
                    815: ;; Exclude relational operations as they must signal NaNs.
                    816: 
                    817: (define_insn ""
                    818:   [(set (pc)
                    819:        (if_then_else
                    820:         (match_operator 0 "equality_op"
                    821:                         [(match_operand:DF 1 "register_operand" "r")
                    822:                          (const_int 0)])
                    823:         (match_operand 2 "pc_or_label_ref" "")
                    824:         (match_operand 3 "pc_or_label_ref" "")))]
                    825:   ""
                    826:   "*
                    827: {
                    828:   int label_num;
                    829: 
                    830:   if (GET_CODE (operands[0]) == NE)
                    831:     {
                    832:       rtx op2 = operands[2];
                    833:       operands[2] = operands[3];
                    834:       operands[3] = op2;
                    835:     }
                    836:   if (GET_CODE (operands[3]) == LABEL_REF)
                    837:     return \"bcnd 0x5,%1,%3\;bcnd %#ne0,%d1,%3\";
                    838: 
                    839:   operands[3] = gen_label_rtx ();
                    840:   label_num = XINT (operands[3], 3);
                    841:   output_asm_insn (\"bcnd 0x5,%1,%3\;bcnd %#eq0,%d1,%2\", operands);
                    842:   output_label (label_num);
                    843:   return \"\";
                    844: }"
                    845:   [(set_attr "type" "weird")
                    846:    (set_attr "length" "3")])
                    847: 
                    848: ;; Recognize bb0 and bb1 instructions.  These use two unusual template
                    849: ;; patterns, %Lx and %Px.  %Lx outputs a 1 if operand `x' is a LABEL_REF
                    850: ;; otherwise it outputs a 0.  It then may print ".n" if the delay slot
                    851: ;; is used.  %Px does noting if `x' is PC and outputs the operand if `x'
                    852: ;; is a LABEL_REF.
                    853: 
                    854: (define_insn ""
                    855:   [(set (pc)
                    856:        (if_then_else
                    857:         (ne (sign_extract:SI (match_operand:SI 0 "register_operand" "r")
                    858:                              (const_int 1)
                    859:                              (match_operand:SI 1 "int5_operand" ""))
                    860:             (const_int 0))
                    861:         (match_operand 2 "pc_or_label_ref" "")
                    862:         (match_operand 3 "pc_or_label_ref" "")))]
                    863:   ""
                    864:   "bb%L2 (31-%1),%0,%P2%P3"
                    865:   [(set_attr "type" "branch")])
                    866: 
                    867: (define_insn ""
                    868:   [(set (pc)
                    869:        (if_then_else
                    870:         (eq (sign_extract:SI (match_operand:SI 0 "register_operand" "r")
                    871:                              (const_int 1)
                    872:                              (match_operand:SI 1 "int5_operand" ""))
                    873:             (const_int 0))
                    874:         (match_operand 2 "pc_or_label_ref" "")
                    875:         (match_operand 3 "pc_or_label_ref" "")))]
                    876:   ""
                    877:   "bb%L3 (31-%1),%0,%P2%P3"
                    878:   [(set_attr "type" "branch")])
                    879: 
                    880: (define_insn ""
                    881:   [(set (pc)
                    882:        (if_then_else
                    883:         (ne (zero_extract:SI (match_operand:SI 0 "register_operand" "r")
                    884:                              (const_int 1)
                    885:                              (match_operand:SI 1 "int5_operand" ""))
                    886:             (const_int 0))
                    887:         (match_operand 2 "pc_or_label_ref" "")
                    888:         (match_operand 3 "pc_or_label_ref" "")))]
                    889:   ""
                    890:   "bb%L2 (31-%1),%0,%P2%P3"
                    891:   [(set_attr "type" "branch")])
                    892: 
                    893: (define_insn ""
                    894:   [(set (pc)
                    895:        (if_then_else
                    896:         (eq (zero_extract:SI (match_operand:SI 0 "register_operand" "r")
                    897:                              (const_int 1)
                    898:                              (match_operand:SI 1 "int5_operand" ""))
                    899:             (const_int 0))
                    900:         (match_operand 2 "pc_or_label_ref" "")
                    901:         (match_operand 3 "pc_or_label_ref" "")))]
                    902:   ""
                    903:   "bb%L3 (31-%1),%0,%P2%P3"
                    904:   [(set_attr "type" "branch")])
                    905: 
                    906: (define_insn ""
                    907:   [(set (pc)
                    908:        (if_then_else
                    909:         (eq (and:SI (match_operand:SI 0 "reg_or_bbx_mask_operand" "%r")
                    910:                     (match_operand:SI 1 "reg_or_bbx_mask_operand" "n"))
                    911:              (const_int 0))
                    912:         (match_operand 2 "pc_or_label_ref" "")
                    913:         (match_operand 3 "pc_or_label_ref" "")))]
                    914:   "(GET_CODE (operands[0]) == CONST_INT)
                    915:    != (GET_CODE (operands[1]) == CONST_INT)"
                    916:   "bb%L3 %p1,%0,%P2%P3"
                    917:   [(set_attr "type" "branch")])
                    918: 
                    919: (define_insn ""
                    920:   [(set (pc)
                    921:        (if_then_else
                    922:         (ne (and:SI (match_operand:SI 0 "reg_or_bbx_mask_operand" "%r")
                    923:                     (match_operand:SI 1 "reg_or_bbx_mask_operand" "n"))
                    924:             (const_int 0))
                    925:         (match_operand 2 "pc_or_label_ref" "")
                    926:         (match_operand 3 "pc_or_label_ref" "")))]
                    927:   "(GET_CODE (operands[0]) == CONST_INT)
                    928:    != (GET_CODE (operands[1]) == CONST_INT)"
                    929:   "bb%L2 %p1,%0,%P2%P3"
                    930:   [(set_attr "type" "branch")])
                    931: 
                    932: ;; The comparison operations store the comparison into a register and
                    933: ;; record that register.  The following Bxx or Sxx insn uses that
                    934: ;; register as an input.  To facilitate use of bcnd instead of cmp/bb1,
                    935: ;; cmpsi records it's operands and produces no code when any operand
                    936: ;; is constant.  In this case, the Bxx insns use gen_bcnd and the
                    937: ;; Sxx insns use gen_test to ensure a cmp has been emitted.
                    938: ;;
                    939: ;; This could also be done for SFmode and DFmode having only beq and bne
                    940: ;; use gen_bcnd.  The others must signal NaNs.  It seems though that zero
                    941: ;; has already been copied into a register.
                    942: ;;
                    943: ;; cmpsi/beq and cmpsi/bne can always be done with bcnd if any operand
                    944: ;; is a constant.  (This idea is due to Torbjorn Granlund.)  Others can
                    945: ;; use bcnd only if an operand is zero.
                    946: ;;
                    947: ;; It is necessary to distinguish a register holding condition codes.
                    948: ;; This is done by context.
                    949: 
                    950: (define_expand "test"
                    951:   [(set (match_dup 2)
                    952:        (compare:CC (match_operand 0 "" "")
                    953:                    (match_operand 1 "" "")))]
                    954:   ""
                    955:   "
                    956: {
                    957:   if (m88k_compare_reg)
                    958:     abort ();
                    959: 
                    960:   if (GET_CODE (operands[0]) == CONST_INT
                    961:       && ! SMALL_INT (operands[0]))
                    962:     operands[0] = force_reg (SImode, operands[0]);
                    963: 
                    964:   if (GET_CODE (operands[1]) == CONST_INT
                    965:       && ! SMALL_INT (operands[1]))
                    966:     operands[1] = force_reg (SImode, operands[1]);
                    967: 
                    968:   operands[2] = m88k_compare_reg = gen_reg_rtx (CCmode);
                    969: }")
                    970: 
                    971: ; @@ The docs say don't do this.  It's probably a nop since the insn looks
                    972: ; identical to cmpsi against zero.  Is there an advantage to providing
                    973: ; this, perhaps with a different form?
                    974: 
                    975: ;(define_expand "tstsi"
                    976: ;  [(set (match_dup 1)
                    977: ;      (compare:CC (match_operand:SI 0 "register_operand" "")
                    978: ;                  (const_int 0)))]
                    979: ; ""
                    980: ; "
                    981: ;{
                    982: ;  m88k_compare_reg = 0;
                    983: ;  m88k_compare_op0 = operands[0];
                    984: ;  m88k_compare_op1 = const0_rtx;
                    985: ;  DONE;
                    986: ;}")
                    987: 
                    988: (define_expand "cmpsi"
                    989:   [(set (match_dup 2)
                    990:        (compare:CC (match_operand:SI 0 "register_operand" "")
                    991:                    (match_operand:SI 1 "arith32_operand" "")))]
                    992:   ""
                    993:   "
                    994: {
                    995:   if (GET_CODE (operands[0]) == CONST_INT
                    996:       || GET_CODE (operands[1]) == CONST_INT)
                    997:     {
                    998:       m88k_compare_reg = 0;
                    999:       m88k_compare_op0 = operands[0];
                   1000:       m88k_compare_op1 = operands[1];
                   1001:       DONE;
                   1002:     }
                   1003:   operands[2] = m88k_compare_reg = gen_reg_rtx (CCmode);
                   1004: }")
                   1005: 
                   1006: (define_expand "cmpsf"
                   1007:   [(set (match_dup 2)
                   1008:        (compare:CC (match_operand:SF 0 "register_operand" "")
                   1009:                    (match_operand:SF 1 "register_operand" "")))]
                   1010:   ""
                   1011:   "operands[2] = m88k_compare_reg = gen_reg_rtx (CCmode);")
                   1012: 
                   1013: (define_expand "cmpdf"
                   1014:   [(set (match_dup 2)
                   1015:        (compare:CC (match_operand:DF 0 "general_operand" "")
                   1016:                    (match_operand:DF 1 "general_operand" "")))]
                   1017:   ""
                   1018:   "
                   1019: {
                   1020:   operands[0] = legitimize_operand (operands[0], DFmode);
                   1021:   operands[1] = legitimize_operand (operands[1], DFmode);
                   1022:   operands[2] = m88k_compare_reg = gen_reg_rtx (CCmode);
                   1023: }")
                   1024: 
                   1025: ; @@ Get back to this later on.
                   1026: ;
                   1027: ;(define_insn "cmpdi"
                   1028: ;  [(set (cc0)
                   1029: ;      (compare:CC (match_operand:DI 0 "register_operand" "r")
                   1030: ;                  (match_operand:DI 1 "register_operand" "r")))]
                   1031: ;  ""
                   1032: ;  "*
                   1033: ;{
                   1034: ;  if ((cc_status.mdep & MDEP_LS_CHANGE) != 0)
                   1035: ;    abort (); /* output_move_double MDEP_LS_CHANGE bits were set. */
                   1036: ;
                   1037: ;  cc_status.mdep &= ~ MDEP_LS_MASK;
                   1038: ;
                   1039: ;  operands[2] = gen_label_rtx ();
                   1040: ;  /* Remember, %! is the condition code register and %@ is the
                   1041: ;     literal synthesis register.  */
                   1042: ;
                   1043: ;  output_asm_insn (\"cmp %!,%0,%1\;bb0 %#eq,%!,%l2\;cmp %!,%d0,%d1\",
                   1044: ;                 operands);
                   1045: ;
                   1046: ;  output_asm_insn (\"extu %@,%!,4<8>\;clr %!,%!,4<4>\", operands);
                   1047: ;  output_asm_insn (\"mak %@,%@,4<4>\;or %!,%!,%@\", operands);
                   1048: ;  output_label (XINT (operands[2], 3));
                   1049: ;  return \"\";
                   1050: ;}"
                   1051: 
                   1052: ;; The actual compare instructions.
                   1053: 
                   1054: (define_insn ""
                   1055:   [(set (match_operand:CC 0 "register_operand" "=r")
                   1056:        (compare:CC (match_operand:SI 1 "register_operand" "rO")
                   1057:                    (match_operand:SI 2 "arith_operand" "rI")))]
                   1058:   ""
                   1059:   "cmp %0,%r1,%2")
                   1060: 
                   1061: (define_insn ""
                   1062:   [(set (match_operand:CC 0 "register_operand" "=r,r,r,r")
                   1063:        (compare:CC (match_operand:SF 1 "register_operand" "r,r,x,x")
                   1064:                    (match_operand:SF 2 "real_or_0_operand" "r,G,x,G")))]
                   1065:   ""
                   1066:   "@
                   1067:    fcmp.sss %0,%1,%2
                   1068:    fcmp.sss %0,%1,%#r0
                   1069:    fcmp.sss %0,%1,%2
                   1070:    fcmp.sss %0,%1,%#x0"
                   1071:   [(set_attr "type" "spcmp")])
                   1072: 
                   1073: (define_insn ""
                   1074:   [(set (match_operand:CC 0 "register_operand" "=r,r")
                   1075:        (compare:CC (match_operand:DF 1 "register_operand" "r,x")
                   1076:                    (float_extend:DF
                   1077:                     (match_operand:SF 2 "register_operand" "r,x"))))]
                   1078:   ""
                   1079:   "fcmp.sds %0,%1,%2"
                   1080:   [(set_attr "type" "dpcmp")])
                   1081: 
                   1082: (define_insn ""
                   1083:   [(set (match_operand:CC 0 "register_operand" "=r,r")
                   1084:        (compare:CC (float_extend:DF
                   1085:                     (match_operand:SF 1 "register_operand" "r,x"))
                   1086:                    (match_operand:DF 2 "register_operand" "r,x")))]
                   1087:   ""
                   1088:   "fcmp.ssd %0,%1,%2"
                   1089:   [(set_attr "type" "dpcmp")])
                   1090: 
                   1091: (define_insn ""
                   1092:   [(set (match_operand:CC 0 "register_operand" "=r,r,r,r")
                   1093:        (compare:CC (match_operand:DF 1 "register_operand" "r,r,x,x")
                   1094:                    (match_operand:DF 2 "real_or_0_operand" "r,G,x,G")))]
                   1095:   ""
                   1096:   "@
                   1097:    fcmp.sdd %0,%1,%2
                   1098:    fcmp.sds %0,%1,%#r0
                   1099:    fcmp.sdd %0,%1,%2
                   1100:    fcmp.sds %0,%1,%#x0"
                   1101:   [(set_attr "type" "dpcmp")])
                   1102: 
                   1103: ;; Store condition code insns.  The compare insns set a register
                   1104: ;; rather than cc0 and record that register for use here.  See above
                   1105: ;; for the special treatment of cmpsi with a constant operand.
                   1106: 
                   1107: ;; @@ For the m88110, use fcmpu for bxx sxx inequality comparisons.
                   1108: 
                   1109: (define_expand "seq"
                   1110:   [(set (match_operand:SI 0 "register_operand" "")
                   1111:        (match_dup 1))]
                   1112:   ""
                   1113:   "operands[1] = emit_test (EQ, SImode);")
                   1114: 
                   1115: (define_expand "sne"
                   1116:   [(set (match_operand:SI 0 "register_operand" "")
                   1117:        (match_dup 1))]
                   1118:   ""
                   1119:   "operands[1] = emit_test (NE, SImode);")
                   1120: 
                   1121: (define_expand "sgt"
                   1122:   [(set (match_operand:SI 0 "register_operand" "")
                   1123:        (match_dup 1))]
                   1124:   ""
                   1125:   "operands[1] = emit_test (GT, SImode);")
                   1126: 
                   1127: (define_expand "sgtu"
                   1128:   [(set (match_operand:SI 0 "register_operand" "")
                   1129:        (match_dup 1))]
                   1130:   ""
                   1131:   "operands[1] = emit_test (GTU, SImode);")
                   1132: 
                   1133: (define_expand "slt"
                   1134:   [(set (match_operand:SI 0 "register_operand" "")
                   1135:        (match_dup 1))]
                   1136:   ""
                   1137:   "operands[1] = emit_test (LT, SImode);")
                   1138: 
                   1139: (define_expand "sltu"
                   1140:   [(set (match_operand:SI 0 "register_operand" "")
                   1141:        (match_dup 1))]
                   1142:   ""
                   1143:   "operands[1] = emit_test (LTU, SImode);")
                   1144: 
                   1145: (define_expand "sge"
                   1146:   [(set (match_operand:SI 0 "register_operand" "")
                   1147:        (match_dup 1))]
                   1148:   ""
                   1149:   "operands[1] = emit_test (GE, SImode);")
                   1150: 
                   1151: (define_expand "sgeu"
                   1152:   [(set (match_operand:SI 0 "register_operand" "")
                   1153:        (match_dup 1))]
                   1154:   ""
                   1155:   "operands[1] = emit_test (GEU, SImode);")
                   1156: 
                   1157: (define_expand "sle"
                   1158:   [(set (match_operand:SI 0 "register_operand" "")
                   1159:        (match_dup 1))]
                   1160:   ""
                   1161:   "operands[1] = emit_test (LE, SImode);")
                   1162: 
                   1163: (define_expand "sleu"
                   1164:   [(set (match_operand:SI 0 "register_operand" "")
                   1165:        (match_dup 1))]
                   1166:   ""
                   1167:   "operands[1] = emit_test (LEU, SImode);")
                   1168: 
                   1169: ;; The actual set condition code instruction.
                   1170: 
                   1171: (define_insn ""
                   1172:   [(set (match_operand:SI 0 "register_operand" "=r")
                   1173:        (match_operator:SI 1 "relop"
                   1174:                           [(match_operand:CC 2 "register_operand" "r")
                   1175:                            (const_int 0)]))]
                   1176:   ""
                   1177:   "ext %0,%2,1<%C1>"
                   1178:   [(set_attr "type" "bit")])
                   1179: 
                   1180: (define_insn ""
                   1181:   [(set (match_operand:SI 0 "register_operand" "=r")
                   1182:        (neg:SI
                   1183:         (match_operator:SI 1 "relop"
                   1184:                            [(match_operand:CC 2 "register_operand" "r")
                   1185:                             (const_int 0)])))]
                   1186:   ""
                   1187:   "extu %0,%2,1<%C1>"
                   1188:   [(set_attr "type" "bit")])
                   1189: 
                   1190: ;; Conditional branch insns.  The compare insns set a register
                   1191: ;; rather than cc0 and record that register for use here.  See above
                   1192: ;; for the special case of cmpsi with a constant operand.
                   1193: 
                   1194: (define_expand "bcnd"
                   1195:   [(set (pc)
                   1196:        (if_then_else (match_operand 0 "" "")
                   1197:                      (label_ref (match_operand 1 "" ""))
                   1198:                      (pc)))]
                   1199:   ""
                   1200:   "if (m88k_compare_reg) abort ();")
                   1201: 
                   1202: (define_expand "bxx"
                   1203:   [(set (pc)
                   1204:        (if_then_else (match_operand 0 "" "")
                   1205:                      (label_ref (match_operand 1 "" ""))
                   1206:                      (pc)))]
                   1207:   ""
                   1208:   "if (m88k_compare_reg == 0) abort ();")
                   1209: 
                   1210: (define_expand "beq"
                   1211:   [(set (pc)
                   1212:        (if_then_else (eq (match_dup 1) (const_int 0))
                   1213:                      (label_ref (match_operand 0 "" ""))
                   1214:                      (pc)))]
                   1215:   ""
                   1216:   "if (m88k_compare_reg == 0)
                   1217:      {
                   1218:        emit_bcnd (EQ, operands[0]);
                   1219:        DONE;
                   1220:      }
                   1221:    operands[1] = m88k_compare_reg;")
                   1222: 
                   1223: (define_expand "bne"
                   1224:   [(set (pc)
                   1225:        (if_then_else (ne (match_dup 1) (const_int 0))
                   1226:                      (label_ref (match_operand 0 "" ""))
                   1227:                      (pc)))]
                   1228:   ""
                   1229:   "if (m88k_compare_reg == 0)
                   1230:      {
                   1231:        emit_bcnd (NE, operands[0]);
                   1232:        DONE;
                   1233:      }
                   1234:    operands[1] = m88k_compare_reg;")
                   1235: 
                   1236: (define_expand "bgt"
                   1237:   [(set (pc)
                   1238:        (if_then_else (gt (match_dup 1) (const_int 0))
                   1239:                      (label_ref (match_operand 0 "" ""))
                   1240:                      (pc)))]
                   1241:   ""
                   1242:   "if (m88k_compare_reg == 0)
                   1243:      {
                   1244:        emit_bcnd (GT, operands[0]);
                   1245:        DONE;
                   1246:      }
                   1247:    operands[1] = m88k_compare_reg;")
                   1248: 
                   1249: (define_expand "bgtu"
                   1250:   [(set (pc)
                   1251:        (if_then_else (gtu (match_dup 1) (const_int 0))
                   1252:                      (label_ref (match_operand 0 "" ""))
                   1253:                      (pc)))]
                   1254:   ""
                   1255:   "if (m88k_compare_reg == 0)
                   1256:      {
                   1257:        emit_jump_insn (gen_bxx (emit_test (GTU, VOIDmode), operands[0]));
                   1258:        DONE;
                   1259:      }
                   1260:    operands[1] = m88k_compare_reg;")
                   1261: 
                   1262: (define_expand "blt"
                   1263:   [(set (pc)
                   1264:        (if_then_else (lt (match_dup 1) (const_int 0))
                   1265:                      (label_ref (match_operand 0 "" ""))
                   1266:                      (pc)))]
                   1267:   ""
                   1268:   "if (m88k_compare_reg == 0)
                   1269:      {
                   1270:        emit_bcnd (LT, operands[0]);
                   1271:        DONE;
                   1272:      }
                   1273:    operands[1] = m88k_compare_reg;")
                   1274: 
                   1275: (define_expand "bltu"
                   1276:   [(set (pc)
                   1277:        (if_then_else (ltu (match_dup 1) (const_int 0))
                   1278:                      (label_ref (match_operand 0 "" ""))
                   1279:                      (pc)))]
                   1280:   ""
                   1281:   "if (m88k_compare_reg == 0)
                   1282:      {
                   1283:        emit_jump_insn (gen_bxx (emit_test (LTU, VOIDmode), operands[0]));
                   1284:        DONE;
                   1285:      }
                   1286:    operands[1] = m88k_compare_reg;")
                   1287: 
                   1288: (define_expand "bge"
                   1289:   [(set (pc)
                   1290:        (if_then_else (ge (match_dup 1) (const_int 0))
                   1291:                      (label_ref (match_operand 0 "" ""))
                   1292:                      (pc)))]
                   1293:   ""
                   1294:   "if (m88k_compare_reg == 0)
                   1295:      {
                   1296:        emit_bcnd (GE, operands[0]);
                   1297:        DONE;
                   1298:      }
                   1299:    operands[1] = m88k_compare_reg;")
                   1300: 
                   1301: (define_expand "bgeu"
                   1302:   [(set (pc)
                   1303:        (if_then_else (geu (match_dup 1) (const_int 0))
                   1304:                      (label_ref (match_operand 0 "" ""))
                   1305:                      (pc)))]
                   1306:   ""
                   1307:   "if (m88k_compare_reg == 0)
                   1308:      {
                   1309:        emit_jump_insn (gen_bxx (emit_test (GEU, VOIDmode), operands[0]));
                   1310:        DONE;
                   1311:      }
                   1312:    operands[1] = m88k_compare_reg;")
                   1313: 
                   1314: (define_expand "ble"
                   1315:   [(set (pc)
                   1316:        (if_then_else (le (match_dup 1) (const_int 0))
                   1317:                      (label_ref (match_operand 0 "" ""))
                   1318:                      (pc)))]
                   1319:   ""
                   1320:   "if (m88k_compare_reg == 0)
                   1321:      {
                   1322:        emit_bcnd (LE, operands[0]);
                   1323:        DONE;
                   1324:      }
                   1325:    operands[1] = m88k_compare_reg;")
                   1326: 
                   1327: (define_expand "bleu"
                   1328:   [(set (pc)
                   1329:        (if_then_else (leu (match_dup 1) (const_int 0))
                   1330:                      (label_ref (match_operand 0 "" ""))
                   1331:                      (pc)))]
                   1332:   ""
                   1333:   "if (m88k_compare_reg == 0)
                   1334:      {
                   1335:        emit_jump_insn (gen_bxx (emit_test (LEU, VOIDmode), operands[0]));
                   1336:        DONE;
                   1337:      }
                   1338:    operands[1] = m88k_compare_reg;")
                   1339: 
                   1340: ;; The actual conditional branch instruction (both directions).  This
                   1341: ;; uses two unusual template patterns, %Rx and %Px.  %Rx is a prefix code
                   1342: ;; for the immediately following condition and reverses the condition iff
                   1343: ;; operand `x' is a LABEL_REF.  %Px does nothing if `x' is PC and outputs
                   1344: ;; the operand if `x' is a LABEL_REF.
                   1345: 
                   1346: (define_insn ""
                   1347:   [(set (pc) (if_then_else
                   1348:              (match_operator 0 "relop"
                   1349:                              [(match_operand:CC 1 "register_operand" "r")
                   1350:                               (const_int 0)])
                   1351:              (match_operand 2 "pc_or_label_ref" "")
                   1352:              (match_operand 3 "pc_or_label_ref" "")))]
                   1353:   ""
                   1354:   "*
                   1355: {
                   1356:   if (mostly_false_jump (insn, operands[0]))
                   1357:     return \"bb0%. %R2%C0,%1,%P2%P3\";
                   1358:   else
                   1359:     return \"bb1%. %R3%C0,%1,%P2%P3\";
                   1360: }"
                   1361:   [(set_attr "type" "branch")])
                   1362: 
                   1363: ;; Branch conditional on scc values.  These arise from manipulations on
                   1364: ;; compare words above.
                   1365: 
                   1366: (define_insn ""
                   1367:   [(set (pc)
                   1368:        (if_then_else
                   1369:         (ne (match_operator 0 "relop"
                   1370:                             [(match_operand:CC 1 "register_operand" "r")
                   1371:                              (const_int 0)])
                   1372:             (const_int 0))
                   1373:         (match_operand 2 "pc_or_label_ref" "")
                   1374:         (match_operand 3 "pc_or_label_ref" "")))]
                   1375:   ""
                   1376:   "bb%L2 %C0,%1,%P2%P3"
                   1377:   [(set_attr "type" "branch")])
                   1378: 
                   1379: (define_insn ""
                   1380:   [(set (pc)
                   1381:        (if_then_else
                   1382:         (eq (match_operator 0 "relop"
                   1383:                             [(match_operand:CC 1 "register_operand" "r")
                   1384:                              (const_int 0)])
                   1385:             (const_int 0))
                   1386:         (match_operand 2 "pc_or_label_ref" "")
                   1387:         (match_operand 3 "pc_or_label_ref" "")))]
                   1388:   ""
                   1389:   "bb%L3 %C0,%1,%P2%P3"
                   1390:   [(set_attr "type" "branch")])
                   1391: 
                   1392: (define_insn "locate1"
                   1393:   [(set (match_operand:SI 0 "register_operand" "=r")
                   1394:        (high:SI (unspec:SI [(label_ref (match_operand 1 "" ""))] 0)))]
                   1395:   ""
                   1396:   "or.u %0,%#r0,%#hi16(%1#abdiff)")
                   1397: 
                   1398: (define_insn "locate2"
                   1399:   [(parallel [(set (reg:SI 1) (pc))
                   1400:              (set (match_operand:SI 0 "register_operand" "=r")
                   1401:                   (lo_sum:SI (match_dup 0)
                   1402:                              (unspec:SI
                   1403:                               [(label_ref (match_operand 1 "" ""))] 0)))])]
                   1404:   ""
                   1405:   "bsr.n %1\;or %0,%0,%#lo16(%1#abdiff)\\n%1:"
                   1406:   [(set_attr "length" "2")])
                   1407: 
                   1408: ;; SImode move instructions
                   1409: 
                   1410: (define_expand "movsi"
                   1411:   [(set (match_operand:SI 0 "general_operand" "")
                   1412:        (match_operand:SI 1 "general_operand" ""))]
                   1413:   ""
                   1414:   "
                   1415: {
                   1416:   if (emit_move_sequence (operands, SImode, 0))
                   1417:     DONE;
                   1418: }")
                   1419: 
                   1420: (define_expand "reload_insi"
                   1421:   [(set (match_operand:SI 0 "register_operand" "=r")
                   1422:        (match_operand:SI 1 "general_operand" ""))
                   1423:    (clobber (match_operand:SI 2 "register_operand" "=&r"))]
                   1424:   ""
                   1425:   "
                   1426: {
                   1427:   if (emit_move_sequence (operands, SImode, operands[2]))
                   1428:     DONE;
                   1429: 
                   1430:   /* We don't want the clobber emitted, so handle this ourselves.  */
                   1431:   emit_insn (gen_rtx (SET, VOIDmode, operands[0], operands[1]));
                   1432:   DONE;
                   1433: }")
                   1434: 
                   1435: (define_insn ""
                   1436:   [(set (match_operand:SI 0 "nonimmediate_operand" "=r,r,m,r,r,r,x,x,x,m")
                   1437:        (match_operand:SI 1 "move_operand" "rI,m,rO,J,M,x,r,x,m,x"))]
                   1438:   "(register_operand (operands[0], SImode)
                   1439:     || register_operand (operands[1], SImode)
                   1440:     || operands[1] == const0_rtx)"
                   1441:   "@
                   1442:    or %0,%#r0,%1
                   1443:    %V1ld\\t %0,%1
                   1444:    %v0st\\t %r1,%0
                   1445:    subu %0,%#r0,%n1
                   1446:    set %0,%#r0,%s1
                   1447:    mov.s %0,%1
                   1448:    mov.s %0,%1
                   1449:    mov %0,%1
                   1450:    %V1ld\\t %0,%1
                   1451:    %v0st\\t %1,%0"
                   1452:   [(set_attr "type" "arith,load,store,arith,bit,mov,mov,mov,load,store")])
                   1453: 
                   1454: (define_insn ""
                   1455:   [(set (match_operand:SI 0 "register_operand" "=r,r,r,r,r")
                   1456:        (match_operand:SI 1 "arith32_operand" "rI,J,L,M,n"))]
                   1457:   ""
                   1458:   "@
                   1459:    or %0,%#r0,%1
                   1460:    subu %0,%#r0,%n1
                   1461:    or.u %0,%#r0,%X1
                   1462:    set %0,%#r0,%s1
                   1463:    or.u %0,%#r0,%X1\;or %0,%0,%x1"
                   1464:   [(set_attr "type" "arith,arith,arith,bit,marith")])
                   1465: 
                   1466: ;; @@ Why the constraint "in"?  Doesn't `i' include `n'?
                   1467: (define_insn ""
                   1468:   [(set (match_operand:SI 0 "register_operand" "=r")
                   1469:        (lo_sum:SI (match_operand:SI 1 "register_operand" "r")
                   1470:                   (match_operand:SI 2 "immediate_operand" "in")))]
                   1471:   ""
                   1472:   "or %0,%1,%#lo16(%g2)")
                   1473: 
                   1474: (define_insn ""
                   1475:   [(set (match_operand:SI 0 "register_operand" "=r")
                   1476:        (high:SI (match_operand 1 "" "")))]
                   1477:   ""
                   1478:   "or.u %0,%#r0,%#hi16(%g1)")
                   1479: 
                   1480: ;; HImode move instructions
                   1481: 
                   1482: (define_expand "movhi"
                   1483:   [(set (match_operand:HI 0 "general_operand" "")
                   1484:        (match_operand:HI 1 "general_operand" ""))]
                   1485:   ""
                   1486:   "
                   1487: {
                   1488:   if (emit_move_sequence (operands, HImode, 0))
                   1489:     DONE;
                   1490: }")
                   1491: 
                   1492: (define_insn ""
                   1493:   [(set (match_operand:HI 0 "nonimmediate_operand" "=r,r,m,r")
                   1494:        (match_operand:HI 1 "move_operand" "rP,m,rO,N"))]
                   1495:   "(register_operand (operands[0], HImode)
                   1496:     || register_operand (operands[1], HImode)
                   1497:     || operands[1] == const0_rtx)"
                   1498:   "@
                   1499:    or %0,%#r0,%h1
                   1500:    %V1ld.hu\\t %0,%1
                   1501:    %v0st.h\\t %r1,%0
                   1502:    subu %0,%#r0,%H1"
                   1503:   [(set_attr "type" "arith,load,store,arith")])
                   1504: 
                   1505: (define_insn ""
                   1506:   [(set (match_operand:HI 0 "register_operand" "=r")
                   1507:        (subreg:HI (lo_sum:SI (match_operand:SI 1 "register_operand" "r")
                   1508:                              (match_operand:SI 2 "immediate_operand" "in")) 0))]
                   1509:   "!flag_pic"
                   1510:   "or %0,%1,%#lo16(%2)")
                   1511: 
                   1512: ;; QImode move instructions
                   1513: 
                   1514: (define_expand "movqi"
                   1515:   [(set (match_operand:QI 0 "general_operand" "")
                   1516:        (match_operand:QI 1 "general_operand" ""))]
                   1517:   ""
                   1518:   "
                   1519: {
                   1520:   if (emit_move_sequence (operands, QImode, 0))
                   1521:     DONE;
                   1522: }")
                   1523: 
                   1524: (define_insn ""
                   1525:   [(set (match_operand:QI 0 "nonimmediate_operand" "=r,r,m,r")
                   1526:        (match_operand:QI 1 "move_operand" "rP,m,rO,N"))]
                   1527:   "(register_operand (operands[0], QImode)
                   1528:     || register_operand (operands[1], QImode)
                   1529:     || operands[1] == const0_rtx)"
                   1530:   "@
                   1531:    or %0,%#r0,%q1
                   1532:    %V1ld.bu\\t %0,%1
                   1533:    %v0st.b\\t %r1,%0
                   1534:    subu %r0,%#r0,%Q1"
                   1535:   [(set_attr "type" "arith,load,store,arith")])
                   1536: 
                   1537: (define_insn ""
                   1538:   [(set (match_operand:QI 0 "register_operand" "=r")
                   1539:        (subreg:QI (lo_sum:SI (match_operand:SI 1 "register_operand" "r")
                   1540:                              (match_operand:SI 2 "immediate_operand" "in")) 0))]
                   1541:   "!flag_pic"
                   1542:   "or %0,%1,%#lo16(%2)")
                   1543: 
                   1544: ;; DImode move instructions
                   1545: 
                   1546: (define_expand "movdi"
                   1547:   [(set (match_operand:DI 0 "general_operand" "")
                   1548:        (match_operand:DI 1 "general_operand" ""))]
                   1549:   ""
                   1550:   "
                   1551: {
                   1552:   if (emit_move_sequence (operands, DImode, 0))
                   1553:     DONE;
                   1554: }")
                   1555: 
                   1556: (define_insn ""
                   1557:   [(set (match_operand:DI 0 "register_operand" "=r,x")
                   1558:        (const_int 0))]
                   1559:   ""
                   1560:   "@
                   1561:    or %0,%#r0,0\;or %d0,%#r0,0
                   1562:    mov %0,%#x0"
                   1563:   [(set_attr "type" "marith,mov")])
                   1564: 
                   1565: (define_insn ""
                   1566:   [(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,m,r,x,x,x,m")
                   1567:        (match_operand:DI 1 "nonimmediate_operand" "r,m,r,x,r,x,m,x"))]
                   1568:   ""
                   1569:   "@
                   1570:    or %0,%#r0,%1\;or %d0,%#r0,%d1
                   1571:    %V1ld.d\\t %0,%1
                   1572:    %v0st.d\\t %1,%0
                   1573:    mov.d %0,%1
                   1574:    mov.d %0,%1
                   1575:    mov %0,%1
                   1576:    %V1ld.d\\t %0,%1
                   1577:    %v0st.d\\t %1,%0"
                   1578:   [(set_attr "type" "marith,loadd,store,mov,mov,mov,loadd,store")])
                   1579: 
                   1580: (define_insn ""
                   1581:   [(set (match_operand:DI 0 "register_operand" "=r")
                   1582:        (subreg:DI (lo_sum:SI (match_operand:SI 1 "register_operand" "r")
                   1583:                              (match_operand:SI 2 "immediate_operand" "in")) 0))]
                   1584:   "!flag_pic"
                   1585:   "or %0,%1,%#lo16(%2)")
                   1586: 
                   1587: (define_insn ""
                   1588:   [(set (match_operand:DI 0 "register_operand" "=r")
                   1589:        (match_operand:DI 1 "immediate_operand" "n"))]
                   1590:    ""
                   1591:    "* return output_load_const_dimode (operands);"
                   1592:   [(set_attr "type" "marith")
                   1593:    (set_attr "length" "4")]) ; length is 2, 3 or 4.
                   1594: 
                   1595: ;; DFmode move instructions
                   1596: 
                   1597: (define_expand "movdf"
                   1598:   [(set (match_operand:DF 0 "general_operand" "")
                   1599:        (match_operand:DF 1 "general_operand" ""))]
                   1600:   ""
                   1601:   "
                   1602: {
                   1603:   if (emit_move_sequence (operands, DFmode, 0))
                   1604:     DONE;
                   1605: }")
                   1606: 
                   1607: ;; @@ This pattern is incomplete and doesn't appear necessary.
                   1608: ;;
                   1609: ;; This pattern forces (set (reg:DF ...) (const_double ...))
                   1610: ;; to be reloaded by putting the constant into memory.
                   1611: ;; It must come before the more general movdf pattern.
                   1612: 
                   1613: ;(define_insn ""
                   1614: ;  [(set (match_operand:DF 0 "general_operand" "=r,o")
                   1615: ;      (match_operand:DF 1 "" "G,G"))]
                   1616: ;  "GET_CODE (operands[1]) == CONST_DOUBLE"
                   1617: ;  "*
                   1618: ;{
                   1619: ;  switch (which_alternative)
                   1620: ;    {
                   1621: ;    case 0:
                   1622: ;      return \"or %0,%#r0,0\;or %d0,%#r0,0\";
                   1623: ;    case 1:
                   1624: ;      operands[1] = adj_offsettable_operand (operands[0], 4);
                   1625: ;      return \"%v0st\\t %#r0,%0\;st %#r0,%1\";
                   1626: ;    }
                   1627: ;}")
                   1628: 
                   1629: (define_insn ""
                   1630:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   1631:        (const_int 0))]
                   1632:   ""
                   1633:   "@
                   1634:    or %0,%#r0,0\;or %d0,%#r0,0
                   1635:    mov %0,%#x0"
                   1636:   [(set_attr "type" "marith,mov")])
                   1637: 
                   1638: (define_insn ""
                   1639:   [(set (match_operand:DF 0 "nonimmediate_operand" "=r,r,m,x,r,x,x,m")
                   1640:        (match_operand:DF 1 "nonimmediate_operand" "r,m,r,r,x,x,m,x"))]
                   1641:   ""
                   1642:   "@
                   1643:    or %0,%#r0,%1\;or %d0,%#r0,%d1
                   1644:    %V1ld.d\\t %0,%1
                   1645:    %v0st.d\\t %1,%0
                   1646:    mov.d %0,%1
                   1647:    mov.d %0,%1
                   1648:    mov %0,%1
                   1649:    %V1ld.d\\t %0,%1
                   1650:    %v0st.d\\t %1,%0"
                   1651:   [(set_attr "type" "marith,loadd,store,mov,mov,mov,loadd,store")])
                   1652: 
                   1653: (define_insn ""
                   1654:   [(set (match_operand:DF 0 "register_operand" "=r")
                   1655:        (subreg:DF (lo_sum:SI (match_operand:SI 1 "register_operand" "r")
                   1656:                              (match_operand:SI 2 "immediate_operand" "in")) 0))]
                   1657:   "!flag_pic"
                   1658:   "or %0,%1,%#lo16(%2)")
                   1659: 
                   1660: (define_insn ""
                   1661:   [(set (match_operand:DF 0 "register_operand" "=r")
                   1662:        (match_operand:DF 1 "immediate_operand" "F"))]
                   1663:    ""
                   1664:    "* return output_load_const_double (operands);"
                   1665:   [(set_attr "type" "marith")
                   1666:    (set_attr "length" "4")]) ; length is 2, 3, or 4.
                   1667: 
                   1668: ;; SFmode move instructions
                   1669: 
                   1670: (define_expand "movsf"
                   1671:   [(set (match_operand:SF 0 "general_operand" "")
                   1672:        (match_operand:SF 1 "general_operand" ""))]
                   1673:   ""
                   1674:   "
                   1675: {
                   1676:   if (emit_move_sequence (operands, SFmode, 0))
                   1677:     DONE;
                   1678: }")
                   1679: 
                   1680: ;; @@ What happens to fconst0_rtx?
                   1681: (define_insn ""
                   1682:   [(set (match_operand:SF 0 "register_operand" "=r,x")
                   1683:        (const_int 0))]
                   1684:   ""
                   1685:   "@
                   1686:    or %0,%#r0,0
                   1687:    mov %0,%#x0"
                   1688:   [(set_attr "type" "arith,mov")])
                   1689: 
                   1690: (define_insn ""
                   1691:   [(set (match_operand:SF 0 "nonimmediate_operand" "=r,r,m,x,r,x,x,m")
                   1692:        (match_operand:SF 1 "nonimmediate_operand" "r,m,r,r,x,x,m,x"))]
                   1693:   ""
                   1694:   "@
                   1695:    or %0,%#r0,%1
                   1696:    %V1ld\\t %0,%1
                   1697:    %v0st\\t %r1,%0
                   1698:    mov.s %0,%1
                   1699:    mov.s %0,%1
                   1700:    mov %0,%1
                   1701:    %V1ld\\t %0,%1
                   1702:    %v0st\\t %r1,%0"
                   1703:   [(set_attr "type" "arith,load,store,mov,mov,mov,load,store")])
                   1704: 
                   1705: (define_insn ""
                   1706:   [(set (match_operand:SF 0 "register_operand" "=r")
                   1707:        (subreg:SF (lo_sum:SI (match_operand:SI 1 "register_operand" "r")
                   1708:                              (match_operand:SI 2 "immediate_operand" "in")) 0))]
                   1709:   "!flag_pic"
                   1710:   "or %0,%1,%#lo16(%2)")
                   1711: 
                   1712: (define_insn ""
                   1713:   [(set (match_operand:SF 0 "register_operand" "=r")
                   1714:        (match_operand:SF 1 "immediate_operand" "F"))]
                   1715:   "operands[1] != const0_rtx"
                   1716:   "* return output_load_const_float (operands);"
                   1717:   [(set_attr "type" "marith")]) ; length is 1 or 2.
                   1718: 
                   1719: ;; String/block move insn.  See m88k.c for details.
                   1720: 
                   1721: (define_expand "movstrsi"
                   1722:   [(parallel [(set (mem:BLK (match_operand:BLK 0 "" ""))
                   1723:                   (mem:BLK (match_operand:BLK 1 "" "")))
                   1724:              (use (match_operand:SI 2 "arith32_operand" ""))
                   1725:              (use (match_operand:SI 3 "immediate_operand" ""))])]
                   1726:   ""
                   1727:   "
                   1728: {
                   1729:   rtx dest_mem = operands[0];
                   1730:   rtx src_mem = operands[1];
                   1731:   operands[0] = copy_to_mode_reg (SImode, XEXP (operands[0], 0));
                   1732:   operands[1] = copy_to_mode_reg (SImode, XEXP (operands[1], 0));
                   1733:   expand_block_move (dest_mem, src_mem, operands);
                   1734:   DONE;
                   1735: }")
                   1736: 
                   1737: (define_insn ""
                   1738:   [(set (match_operand:QI 0 "register_operand" "=r")
                   1739:        (match_operand:BLK 1 "memory_operand" "m"))]
                   1740:   ""
                   1741:   "%V1ld.bu\\t %0,%1"
                   1742:   [(set_attr "type" "load")])
                   1743: 
                   1744: (define_insn ""
                   1745:   [(set (match_operand:HI 0 "register_operand" "=r")
                   1746:        (match_operand:BLK 1 "memory_operand" "m"))]
                   1747:   ""
                   1748:   "%V1ld.hu\\t %0,%1"
                   1749:   [(set_attr "type" "load")])
                   1750: 
                   1751: (define_insn ""
                   1752:   [(set (match_operand:SI 0 "register_operand" "=r")
                   1753:        (match_operand:BLK 1 "memory_operand" "m"))]
                   1754:   ""
                   1755:   "%V1ld\\t %0,%1"
                   1756:   [(set_attr "type" "load")])
                   1757: 
                   1758: (define_insn ""
                   1759:   [(set (match_operand:DI 0 "register_operand" "=r")
                   1760:        (match_operand:BLK 1 "memory_operand" "m"))]
                   1761:   ""
                   1762:   "%V1ld.d\\t %0,%1"
                   1763:   [(set_attr "type" "loadd")])
                   1764: 
                   1765: (define_insn ""
                   1766:   [(set (match_operand:BLK 0 "memory_operand" "=m")
                   1767:        (match_operand:QI 1 "register_operand" "r"))]
                   1768:   ""
                   1769:   "%v0st.b\\t %1,%0"
                   1770:   [(set_attr "type" "store")])
                   1771: 
                   1772: (define_insn ""
                   1773:   [(set (match_operand:BLK 0 "memory_operand" "=m")
                   1774:        (match_operand:HI 1 "register_operand" "r"))]
                   1775:   ""
                   1776:   "%v0st.h\\t %1,%0"
                   1777:   [(set_attr "type" "store")])
                   1778: 
                   1779: (define_insn ""
                   1780:   [(set (match_operand:BLK 0 "memory_operand" "=m")
                   1781:        (match_operand:SI 1 "register_operand" "r"))]
                   1782:   ""
                   1783:   "%v0st\\t %1,%0"
                   1784:   [(set_attr "type" "store")])
                   1785: 
                   1786: (define_insn ""
                   1787:   [(set (match_operand:BLK 0 "memory_operand" "=m")
                   1788:        (match_operand:DI 1 "register_operand" "r"))]
                   1789:   ""
                   1790:   "%v0st.d\\t %1,%0"
                   1791:   [(set_attr "type" "store")])
                   1792: 
                   1793: ;; Call a non-looping block move library function (e.g. __movstrSI96x64).
                   1794: ;; operand 0 is the function name
                   1795: ;; operand 1 is the destination pointer
                   1796: ;; operand 2 is the source pointer
                   1797: ;; operand 3 is the offset for the source and destination pointers
                   1798: ;; operand 4 is the first value to be loaded
                   1799: ;; operand 5 is the register to hold the value (r4 or r5)
                   1800: 
                   1801: (define_expand "call_block_move"
                   1802:   [(set (reg:SI 3) (minus:SI (match_operand:SI 2 "register_operand" "")
                   1803:                             (match_operand:SI 3 "immediate_operand" "")))
                   1804:    (set (match_operand 5 "register_operand" "")
                   1805:        (match_operand 4 "memory_operand" ""))
                   1806:    (set (reg:SI 2) (minus:SI (match_operand:SI 1 "register_operand" "")
                   1807:                             (match_dup 3)))
                   1808:    (use (reg:SI 2))
                   1809:    (use (reg:SI 3))
                   1810:    (use (match_dup 5))
                   1811:    (parallel [(set (reg:DI 2)
                   1812:                   (call (mem:SI (match_operand 0 "" ""))
                   1813:                         (const_int 0)))
                   1814:              (clobber (reg:SI 1))])]
                   1815:   ""
                   1816:   "")
                   1817: 
                   1818: ;; Call an SImode looping block move library function (e.g. __movstrSI64n68).
                   1819: ;; operands 0-5 as in the non-looping interface
                   1820: ;; operand 6 is the loop count
                   1821: 
                   1822: (define_expand "call_movstrsi_loop"
                   1823:   [(set (reg:SI 3) (minus:SI (match_operand:SI 2 "register_operand" "")
                   1824:                             (match_operand:SI 3 "immediate_operand" "")))
                   1825:    (set (match_operand:SI 5 "register_operand" "")
                   1826:        (match_operand 4 "memory_operand" ""))
                   1827:    (set (reg:SI 2) (minus:SI (match_operand:SI 1 "register_operand" "")
                   1828:                             (match_dup 3)))
                   1829:    (set (reg:SI 6) (match_operand:SI 6 "immediate_operand" ""))
                   1830:    (use (reg:SI 2))
                   1831:    (use (reg:SI 3))
                   1832:    (use (match_dup 5))
                   1833:    (use (reg:SI 6))
                   1834:    (parallel [(set (reg:DI 2)
                   1835:                   (call (mem:SI (match_operand 0 "" ""))
                   1836:                         (const_int 0)))
                   1837:              (clobber (reg:SI 1))])]
                   1838:   ""
                   1839:   "")
                   1840: 
                   1841: ;;- zero extension instructions
                   1842: 
                   1843: (define_expand "zero_extendhisi2"
                   1844:   [(set (match_operand:SI 0 "register_operand" "")
                   1845:        (zero_extend:SI (match_operand:HI 1 "nonimmediate_operand" "")))]
                   1846:   ""
                   1847:   "
                   1848: {
                   1849:   if (GET_CODE (operands[1]) == MEM
                   1850:       && symbolic_address_p (XEXP (operands[1], 0)))
                   1851:     operands[1]
                   1852:       = legitimize_address (flag_pic, operands[1], 0, 0);
                   1853: }")
                   1854: 
                   1855: (define_insn ""
                   1856:   [(set (match_operand:SI 0 "register_operand" "=r,r,r")
                   1857:        (zero_extend:SI (match_operand:HI 1 "move_operand" "!r,n,m")))]
                   1858:   "GET_CODE (operands[1]) != CONST_INT"
                   1859:   "@
                   1860:    mask %0,%1,0xffff
                   1861:    or %0,%#r0,%h1
                   1862:    %V1ld.hu\\t %0,%1"
                   1863:   [(set_attr "type" "arith,arith,load")])
                   1864: 
                   1865: (define_expand "zero_extendqihi2"
                   1866:   [(set (match_operand:HI 0 "register_operand" "")
                   1867:        (zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "")))]
                   1868:   ""
                   1869:   "
                   1870: {
                   1871:   if (GET_CODE (operands[1]) == MEM
                   1872:       && symbolic_address_p (XEXP (operands[1], 0)))
                   1873:     operands[1]
                   1874:       = legitimize_address (flag_pic, operands[1], 0, 0);
                   1875: }")
                   1876: 
                   1877: (define_insn ""
                   1878:   [(set (match_operand:HI 0 "register_operand" "=r,r,r")
                   1879:        (zero_extend:HI (match_operand:QI 1 "move_operand" "r,n,m")))]
                   1880:   "GET_CODE (operands[1]) != CONST_INT"
                   1881:   "@
                   1882:    mask %0,%1,0xff
                   1883:    or %0,%#r0,%q1
                   1884:    %V1ld.bu\\t %0,%1"
                   1885:   [(set_attr "type" "arith,arith,load")])
                   1886: 
                   1887: (define_expand "zero_extendqisi2"
                   1888:   [(set (match_operand:SI 0 "register_operand" "")
                   1889:        (zero_extend:SI (match_operand:QI 1 "nonimmediate_operand" "")))]
                   1890:   ""
                   1891:   "
                   1892: {
                   1893:   if (GET_CODE (operands[1]) == MEM
                   1894:       && symbolic_address_p (XEXP (operands[1], 0)))
                   1895:     {
                   1896:       operands[1]
                   1897:        = legitimize_address (flag_pic, operands[1], 0, 0);
                   1898:       emit_insn (gen_rtx (SET, VOIDmode, operands[0],
                   1899:                          gen_rtx (ZERO_EXTEND, SImode, operands[1])));
                   1900:       DONE;
                   1901:     }
                   1902: }")
                   1903: 
                   1904: (define_insn ""
                   1905:   [(set (match_operand:SI 0 "register_operand" "=r,r,r")
                   1906:        (zero_extend:SI (match_operand:QI 1 "move_operand" "r,n,m")))]
                   1907:   "GET_CODE (operands[1]) != CONST_INT"
                   1908:   "@
                   1909:    mask %0,%1,0xff
                   1910:    or %0,%#r0,%q1
                   1911:    %V1ld.bu\\t %0,%1"
                   1912:   [(set_attr "type" "arith,arith,load")])
                   1913: 
                   1914: ;;- sign extension instructions
                   1915: 
                   1916: (define_expand "extendsidi2"
                   1917:   [(set (subreg:SI (match_operand:DI 0 "register_operand" "=r") 1)
                   1918:         (match_operand:SI 1 "general_operand" "g"))
                   1919:    (set (subreg:SI (match_dup 0) 0)
                   1920:         (ashiftrt:SI (subreg:SI (match_dup 0) 1)
                   1921:                      (const_int 31)))]
                   1922:   ""
                   1923:   "")
                   1924: 
                   1925: (define_expand "extendhisi2"
                   1926:   [(set (match_operand:SI 0 "register_operand" "")
                   1927:        (sign_extend:SI (match_operand:HI 1 "nonimmediate_operand" "")))]
                   1928:   ""
                   1929:   "
                   1930: {
                   1931:   if (GET_CODE (operands[1]) == MEM
                   1932:       && symbolic_address_p (XEXP (operands[1], 0)))
                   1933:     operands[1]
                   1934:       = legitimize_address (flag_pic, operands[1], 0, 0);
                   1935: }")
                   1936: 
                   1937: (define_insn ""
                   1938:   [(set (match_operand:SI 0 "register_operand" "=r,r,r,r")
                   1939:        (sign_extend:SI (match_operand:HI 1 "move_operand" "!r,P,N,m")))]
                   1940:   "GET_CODE (operands[1]) != CONST_INT"
                   1941:   "@
                   1942:    ext %0,%1,16<0>
                   1943:    or %0,%#r0,%h1
                   1944:    subu %0,%#r0,%H1
                   1945:    %V1ld.h\\t %0,%1"
                   1946:   [(set_attr "type" "bit,arith,arith,load")])
                   1947: 
                   1948: (define_expand "extendqihi2"
                   1949:   [(set (match_operand:HI 0 "register_operand" "")
                   1950:        (sign_extend:HI (match_operand:QI 1 "nonimmediate_operand" "")))]
                   1951:   ""
                   1952:   "
                   1953: {
                   1954:   if (GET_CODE (operands[1]) == MEM
                   1955:       && symbolic_address_p (XEXP (operands[1], 0)))
                   1956:     operands[1]
                   1957:       = legitimize_address (flag_pic, operands[1], 0, 0);
                   1958: }")
                   1959: 
                   1960: (define_insn ""
                   1961:   [(set (match_operand:HI 0 "register_operand" "=r,r,r,r")
                   1962:        (sign_extend:HI (match_operand:QI 1 "move_operand" "!r,P,N,m")))]
                   1963:   "GET_CODE (operands[1]) != CONST_INT"
                   1964:   "@
                   1965:    ext %0,%1,8<0>
                   1966:    or %0,%#r0,%q1
                   1967:    subu %0,%#r0,%Q1
                   1968:    %V1ld.b\\t %0,%1"
                   1969:   [(set_attr "type" "bit,arith,arith,load")])
                   1970: 
                   1971: (define_expand "extendqisi2"
                   1972:   [(set (match_operand:SI 0 "register_operand" "")
                   1973:        (sign_extend:SI (match_operand:QI 1 "nonimmediate_operand" "")))]
                   1974:   ""
                   1975:   "
                   1976: {
                   1977:   if (GET_CODE (operands[1]) == MEM
                   1978:       && symbolic_address_p (XEXP (operands[1], 0)))
                   1979:     operands[1]
                   1980:       = legitimize_address (flag_pic, operands[1], 0, 0);
                   1981: }")
                   1982: 
                   1983: (define_insn ""
                   1984:   [(set (match_operand:SI 0 "register_operand" "=r,r,r,r")
                   1985:        (sign_extend:SI (match_operand:QI 1 "move_operand" "!r,P,N,m")))]
                   1986:   "GET_CODE (operands[1]) != CONST_INT"
                   1987:   "@
                   1988:    ext %0,%1,8<0>
                   1989:    or %0,%#r0,%q1
                   1990:    subu %0,%#r0,%Q1
                   1991:    %V1ld.b\\t %0,%1"
                   1992:   [(set_attr "type" "bit,arith,arith,load")])
                   1993: 
                   1994: ;; Conversions between float and double.
                   1995: 
                   1996: ;; The fadd instruction does not conform to IEEE 754 when used to
                   1997: ;; convert between float and double.  In particular, the sign of -0 is
                   1998: ;; not preserved.  Interestingly, fsub does conform.
                   1999: 
                   2000: (define_expand "extendsfdf2"
                   2001:   [(set (match_operand:DF 0 "register_operand" "=r")
                   2002:        (float_extend:DF (match_operand:SF 1 "register_operand" "r")))]
                   2003:   ""
                   2004:   "")
                   2005: 
                   2006: (define_insn ""
                   2007:   [(set (match_operand:DF 0 "register_operand" "=r")
                   2008:        (float_extend:DF (match_operand:SF 1 "register_operand" "r")))]
                   2009:   "! TARGET_88110"
                   2010:   "fsub.dss %0,%1,%#r0"
                   2011:   [(set_attr "type" "spadd")])
                   2012: 
                   2013: (define_insn ""
                   2014:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2015:        (float_extend:DF (match_operand:SF 1 "register_operand" "r,x")))]
                   2016:   "TARGET_88110"
                   2017:   "fcvt.ds %0,%1"
                   2018:   [(set_attr "type" "spadd")])
                   2019: 
                   2020: (define_expand "truncdfsf2"
                   2021:   [(set (match_operand:SF 0 "register_operand" "=r")
                   2022:        (float_truncate:SF (match_operand:DF 1 "register_operand" "r")))]
                   2023:   ""
                   2024:   "")
                   2025: 
                   2026: (define_insn ""
                   2027:   [(set (match_operand:SF 0 "register_operand" "=r")
                   2028:        (float_truncate:SF (match_operand:DF 1 "register_operand" "r")))]
                   2029:   "! TARGET_88110"
                   2030:   "fsub.sds %0,%1,%#r0"
                   2031:   [(set_attr "type" "dpadd")])
                   2032: 
                   2033: (define_insn ""
                   2034:   [(set (match_operand:SF 0 "register_operand" "=r,x")
                   2035:        (float_truncate:SF (match_operand:DF 1 "register_operand" "r,x")))]
                   2036:   "TARGET_88110"
                   2037:   "fcvt.sd %0,%1"
                   2038:   [(set_attr "type" "dpadd")])
                   2039: 
                   2040: ;; Conversions between floating point and integer
                   2041: 
                   2042: (define_insn "floatsidf2"
                   2043:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2044:        (float:DF (match_operand:SI 1 "register_operand" "r,r")))]
                   2045:   ""
                   2046:   "flt.ds %0,%1"
                   2047:   [(set_attr "type" "spadd,dpadd")])
                   2048: 
                   2049: (define_insn "floatsisf2"
                   2050:   [(set (match_operand:SF 0 "register_operand" "=r,x")
                   2051:        (float:SF (match_operand:SI 1 "register_operand" "r,r")))]
                   2052:   ""
                   2053:   "flt.ss %0,%1"
                   2054:   [(set_attr "type" "spadd,spadd")])
                   2055: 
                   2056: (define_insn "fix_truncdfsi2"
                   2057:   [(set (match_operand:SI 0 "register_operand" "=r,r")
                   2058:        (fix:SI (match_operand:DF 1 "register_operand" "r,x")))]
                   2059:   ""
                   2060:   "trnc.sd %0,%1"
                   2061:   [(set_attr "type" "dpadd,dpadd")])
                   2062: 
                   2063: (define_insn "fix_truncsfsi2"
                   2064:   [(set (match_operand:SI 0 "register_operand" "=r,r")
                   2065:        (fix:SI (match_operand:SF 1 "register_operand" "r,x")))]
                   2066:   ""
                   2067:   "trnc.ss %0,%1"
                   2068:   [(set_attr "type" "spadd,dpadd")])
                   2069: 
                   2070: 
                   2071: ;;- arithmetic instructions
                   2072: ;;- add instructions
                   2073: 
                   2074: (define_insn "addsi3"
                   2075:   [(set (match_operand:SI 0 "register_operand" "=r,r")
                   2076:        (plus:SI (match_operand:SI 1 "add_operand" "%r,r")
                   2077:                 (match_operand:SI 2 "add_operand" "rI,J")))]
                   2078:   ""
                   2079:   "@
                   2080:    addu %0,%1,%2
                   2081:    subu %0,%1,%n2")
                   2082: 
                   2083: ;; patterns for mixed mode floating point.
                   2084: ;; Do not define patterns that utilize mixed mode arithmetic that result
                   2085: ;; in narrowing the precision, because it loses accuracy, since the standard
                   2086: ;; requires double rounding, whereas the 88000 instruction only rounds once.
                   2087: 
                   2088: (define_expand "adddf3"
                   2089:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2090:        (plus:DF (match_operand:DF 1 "general_operand" "%r,x")
                   2091:                 (match_operand:DF 2 "general_operand" "r,x")))]
                   2092:   ""
                   2093:   "
                   2094: {
                   2095:   operands[1] = legitimize_operand (operands[1], DFmode);
                   2096:   operands[2] = legitimize_operand (operands[2], DFmode);
                   2097: }")
                   2098: 
                   2099: (define_insn ""
                   2100:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2101:        (plus:DF (float_extend:DF (match_operand:SF 1 "register_operand" "r,x"))
                   2102:                 (float_extend:DF (match_operand:SF 2 "register_operand" "r,x"))))]
                   2103:   ""
                   2104:   "fadd.dss %0,%1,%2"
                   2105:   [(set_attr "type" "spadd")])
                   2106: 
                   2107: (define_insn ""
                   2108:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2109:        (plus:DF (match_operand:DF 1 "register_operand" "r,x")
                   2110:                 (float_extend:DF (match_operand:SF 2 "register_operand" "r,x"))))]
                   2111:   ""
                   2112:   "fadd.dds %0,%1,%2"
                   2113:   [(set_attr "type" "dpadd")])
                   2114: 
                   2115: (define_insn ""
                   2116:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2117:        (plus:DF (float_extend:DF (match_operand:SF 1 "register_operand" "r,x"))
                   2118:                 (match_operand:DF 2 "register_operand" "r,x")))]
                   2119:   ""
                   2120:   "fadd.dsd %0,%1,%2"
                   2121:   [(set_attr "type" "dpadd")])
                   2122: 
                   2123: (define_insn ""
                   2124:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2125:        (plus:DF (match_operand:DF 1 "register_operand" "%r,x")
                   2126:                 (match_operand:DF 2 "register_operand" "r,x")))]
                   2127:   ""
                   2128:   "fadd.ddd %0,%1,%2"
                   2129:   [(set_attr "type" "dpadd")])
                   2130: 
                   2131: (define_insn "addsf3"
                   2132:   [(set (match_operand:SF 0 "register_operand" "=r,x")
                   2133:        (plus:SF (match_operand:SF 1 "register_operand" "%r,x")
                   2134:                 (match_operand:SF 2 "register_operand" "r,x")))]
                   2135:   ""
                   2136:   "fadd.sss %0,%1,%2"
                   2137:   [(set_attr "type" "spadd")])
                   2138: 
                   2139: (define_insn ""
                   2140:   [(set (match_operand:DI 0 "register_operand" "=r")
                   2141:        (plus:DI (match_operand:DI 1 "register_operand" "r")
                   2142:                 (zero_extend:DI
                   2143:                  (match_operand:SI 2 "register_operand" "r"))))
                   2144:    (clobber (reg:CC 0))]
                   2145:   ""
                   2146:   "addu.co %d0,%d1,%2\;addu.ci %0,%1,%#r0"
                   2147:   [(set_attr "type" "marith")])
                   2148: 
                   2149: (define_insn ""
                   2150:   [(set (match_operand:DI 0 "register_operand" "=r")
                   2151:        (plus:DI (zero_extend:DI
                   2152:                  (match_operand:SI 1 "register_operand" "r"))
                   2153:                 (match_operand:DI 2 "register_operand" "r")))
                   2154:    (clobber (reg:CC 0))]
                   2155:   ""
                   2156:   "addu.co %d0,%1,%d2\;addu.ci %0,%#r0,%2"
                   2157:   [(set_attr "type" "marith")])
                   2158: 
                   2159: (define_insn "adddi3"
                   2160:   [(set (match_operand:DI 0 "register_operand" "=r")
                   2161:        (plus:DI (match_operand:DI 1 "register_operand" "%r")
                   2162:                 (match_operand:DI 2 "register_operand" "r")))
                   2163:    (clobber (reg:CC 0))]
                   2164:   ""
                   2165:   "addu.co %d0,%d1,%d2\;addu.ci %0,%1,%2"
                   2166:   [(set_attr "type" "marith")])
                   2167: 
                   2168: ;; Add with carry insns.
                   2169: 
                   2170: (define_insn ""
                   2171:   [(parallel [(set (match_operand:SI 0 "reg_or_0_operand" "=r")
                   2172:                   (plus:SI (match_operand:SI 1 "reg_or_0_operand" "rO")
                   2173:                            (match_operand:SI 2 "reg_or_0_operand" "rO")))
                   2174:              (set (reg:CC 0)
                   2175:                   (unspec:CC [(match_dup 1) (match_dup 2)] 0))])]
                   2176:   ""
                   2177:   "addu.co %r0,%r1,%r2")
                   2178: 
                   2179: (define_insn ""
                   2180:   [(set (reg:CC 0) (unspec:CC [(match_operand:SI 0 "reg_or_0_operand" "rO")
                   2181:                               (match_operand:SI 1 "reg_or_0_operand" "rO")]
                   2182:                              0))]
                   2183:   ""
                   2184:   "addu.co %#r0,%r0,%r1")
                   2185: 
                   2186: (define_insn ""
                   2187:   [(set (match_operand:SI 0 "reg_or_0_operand" "=r")
                   2188:        (plus:SI (match_operand:SI 1 "reg_or_0_operand" "rO")
                   2189:                 (unspec:SI [(match_operand:SI 2 "reg_or_0_operand" "rO")
                   2190:                             (reg:CC 0)] 0)))]
                   2191:   ""
                   2192:   "addu.ci %r0,%r1,%r2")
                   2193: 
                   2194: ;;- subtract instructions
                   2195: 
                   2196: (define_insn "subsi3"
                   2197:   [(set (match_operand:SI 0 "register_operand" "=r")
                   2198:        (minus:SI (match_operand:SI 1 "register_operand" "r")
                   2199:                  (match_operand:SI 2 "arith32_operand" "rI")))]
                   2200:   ""
                   2201:   "subu %0,%1,%2")
                   2202: 
                   2203: ;; patterns for mixed mode floating point
                   2204: ;; Do not define patterns that utilize mixed mode arithmetic that result
                   2205: ;; in narrowing the precision, because it loses accuracy, since the standard
                   2206: ;; requires double rounding, whereas the 88000 instruction only rounds once.
                   2207: 
                   2208: (define_expand "subdf3"
                   2209:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2210:        (minus:DF (match_operand:DF 1 "general_operand" "r,x")
                   2211:                  (match_operand:DF 2 "general_operand" "r,x")))]
                   2212:   ""
                   2213:   "
                   2214: {
                   2215:   operands[1] = legitimize_operand (operands[1], DFmode);
                   2216:   operands[2] = legitimize_operand (operands[2], DFmode);
                   2217: }")
                   2218: 
                   2219: (define_insn ""
                   2220:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2221:        (minus:DF (float_extend:DF (match_operand:SF 1 "register_operand" "r,x"))
                   2222:                  (float_extend:DF (match_operand:SF 2 "register_operand" "r,x"))))]
                   2223:   ""
                   2224:   "fsub.dss %0,%1,%2"
                   2225:   [(set_attr "type" "spadd")])
                   2226: 
                   2227: (define_insn ""
                   2228:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2229:        (minus:DF (match_operand:DF 1 "register_operand" "r,x")
                   2230:                  (float_extend:DF (match_operand:SF 2 "register_operand" "r,x"))))]
                   2231:   ""
                   2232:   "fsub.dds %0,%1,%2"
                   2233:   [(set_attr "type" "dpadd")])
                   2234: 
                   2235: (define_insn ""
                   2236:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2237:        (minus:DF (float_extend:DF (match_operand:SF 1 "register_operand" "r,x"))
                   2238:                  (match_operand:DF 2 "register_operand" "r,x")))]
                   2239:   ""
                   2240:   "fsub.dsd %0,%1,%2"
                   2241:   [(set_attr "type" "dpadd")])
                   2242: 
                   2243: (define_insn ""
                   2244:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2245:        (minus:DF (match_operand:DF 1 "register_operand" "r,x")
                   2246:                  (match_operand:DF 2 "register_operand" "r,x")))]
                   2247:   ""
                   2248:   "fsub.ddd %0,%1,%2"
                   2249:   [(set_attr "type" "dpadd")])
                   2250: 
                   2251: (define_insn "subsf3"
                   2252:   [(set (match_operand:SF 0 "register_operand" "=r,x")
                   2253:        (minus:SF (match_operand:SF 1 "register_operand" "r,x")
                   2254:                  (match_operand:SF 2 "register_operand" "r,x")))]
                   2255:   ""
                   2256:   "fsub.sss %0,%1,%2"
                   2257:   [(set_attr "type" "spadd")])
                   2258: 
                   2259: (define_insn ""
                   2260:   [(set (match_operand:DI 0 "register_operand" "=r")
                   2261:        (minus:DI (match_operand:DI 1 "register_operand" "r")
                   2262:                  (zero_extend:DI
                   2263:                   (match_operand:SI 2 "register_operand" "r"))))
                   2264:    (clobber (reg:CC 0))]
                   2265:   ""
                   2266:   "subu.co %d0,%d1,%2\;subu.ci %0,%1,%#r0"
                   2267:   [(set_attr "type" "marith")])
                   2268: 
                   2269: (define_insn ""
                   2270:   [(set (match_operand:DI 0 "register_operand" "=r")
                   2271:        (minus:DI (zero_extend:DI
                   2272:                   (match_operand:SI 1 "register_operand" "r"))
                   2273:                  (match_operand:DI 2 "register_operand" "r")))
                   2274:    (clobber (reg:CC 0))]
                   2275:   ""
                   2276:   "subu.co %d0,%1,%d2\;subu.ci %0,%#r0,%2"
                   2277:   [(set_attr "type" "marith")])
                   2278: 
                   2279: (define_insn "subdi3"
                   2280:   [(set (match_operand:DI 0 "register_operand" "=r")
                   2281:        (minus:DI (match_operand:DI 1 "register_operand" "r")
                   2282:                  (match_operand:DI 2 "register_operand" "r")))
                   2283:    (clobber (reg:CC 0))]
                   2284:   ""
                   2285:   "subu.co %d0,%d1,%d2\;subu.ci %0,%1,%2"
                   2286:   [(set_attr "type" "marith")])
                   2287: 
                   2288: ;; Subtract with carry insns.
                   2289: 
                   2290: (define_insn ""
                   2291:   [(parallel [(set (match_operand:SI 0 "reg_or_0_operand" "=r")
                   2292:                   (minus:SI (match_operand:SI 1 "reg_or_0_operand" "rO")
                   2293:                             (match_operand:SI 2 "reg_or_0_operand" "rO")))
                   2294:              (set (reg:CC 0)
                   2295:                   (unspec:CC [(match_dup 1) (match_dup 2)] 1))])]
                   2296:   ""
                   2297:   "subu.co %r0,%r1,%r2")
                   2298: 
                   2299: (define_insn ""
                   2300:   [(set (reg:CC 0) (unspec:CC [(match_operand:SI 0 "reg_or_0_operand" "rO")
                   2301:                               (match_operand:SI 1 "reg_or_0_operand" "rO")]
                   2302:                              1))]
                   2303:   ""
                   2304:   "subu.co %#r0,%r0,%r1")
                   2305: 
                   2306: (define_insn ""
                   2307:   [(set (match_operand:SI 0 "reg_or_0_operand" "=r")
                   2308:        (minus:SI (match_operand:SI 1 "reg_or_0_operand" "rO")
                   2309:                  (unspec:SI [(match_operand:SI 2 "reg_or_0_operand" "rO")
                   2310:                              (reg:CC 0)] 1)))]
                   2311:   ""
                   2312:   "subu.ci %r0,%r1,%r2")
                   2313: 
                   2314: ;;- multiply instructions
                   2315: ;;
                   2316: ;; There is an unfounded silicon eratta for E.1 requiring that an
                   2317: ;; immediate constant value in div/divu/mul instructions be less than
                   2318: ;; 0x800.  This is no longer provided for.
                   2319: 
                   2320: (define_insn "mulsi3"
                   2321:   [(set (match_operand:SI 0 "register_operand" "=r")
                   2322:        (mult:SI (match_operand:SI 1 "arith32_operand" "%r")
                   2323:                 (match_operand:SI 2 "arith32_operand" "rI")))]
                   2324:   ""
                   2325:   "mul %0,%1,%2"
                   2326:   [(set_attr "type" "imul")])
                   2327: 
                   2328: (define_insn "umulsidi3"
                   2329:   [(set (match_operand:DI 0 "register_operand" "=r")
                   2330:         (mult:DI (zero_extend:DI (match_operand:SI 1 "register_operand" "%r"))
                   2331:                  (zero_extend:DI (match_operand:SI 2 "register_operand" "r"))))]
                   2332:   "TARGET_88110"
                   2333:   "mulu.d %0,%1,%2"
                   2334:   [(set_attr "type" "imul")])
                   2335: 
                   2336: ;; patterns for mixed mode floating point
                   2337: ;; Do not define patterns that utilize mixed mode arithmetic that result
                   2338: ;; in narrowing the precision, because it loses accuracy, since the standard
                   2339: ;; requires double rounding, whereas the 88000 instruction only rounds once.
                   2340: 
                   2341: (define_expand "muldf3"
                   2342:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2343:        (mult:DF (match_operand:DF 1 "general_operand" "%r,x")
                   2344:                 (match_operand:DF 2 "general_operand" "r,x")))]
                   2345:   ""
                   2346:   "
                   2347: {
                   2348:   operands[1] = legitimize_operand (operands[1], DFmode);
                   2349:   operands[2] = legitimize_operand (operands[2], DFmode);
                   2350: }")
                   2351: 
                   2352: (define_insn ""
                   2353:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2354:        (mult:DF (float_extend:DF (match_operand:SF 1 "register_operand" "r,x"))
                   2355:                 (float_extend:DF (match_operand:SF 2 "register_operand" "r,x"))))]
                   2356:   ""
                   2357:   "fmul.dss %0,%1,%2"
                   2358:   [(set_attr "type" "spmul")])
                   2359: 
                   2360: (define_insn ""
                   2361:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2362:        (mult:DF (match_operand:DF 1 "register_operand" "r,x")
                   2363:                 (float_extend:DF (match_operand:SF 2 "register_operand" "r,x"))))]
                   2364:   ""
                   2365:   "fmul.dds %0,%1,%2"
                   2366:   [(set_attr "type" "spmul")])
                   2367: 
                   2368: (define_insn ""
                   2369:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2370:        (mult:DF (float_extend:DF (match_operand:SF 1 "register_operand" "r,x"))
                   2371:                 (match_operand:DF 2 "register_operand" "r,x")))]
                   2372:   ""
                   2373:   "fmul.dsd %0,%1,%2"
                   2374:   [(set_attr "type" "spmul")])
                   2375: 
                   2376: (define_insn ""
                   2377:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2378:        (mult:DF (match_operand:DF 1 "register_operand" "%r,x")
                   2379:                 (match_operand:DF 2 "register_operand" "r,x")))]
                   2380:   ""
                   2381:   "fmul.ddd %0,%1,%2"
                   2382:   [(set_attr "type" "dpmul")])
                   2383: 
                   2384: (define_insn "mulsf3"
                   2385:   [(set (match_operand:SF 0 "register_operand" "=r,x")
                   2386:        (mult:SF (match_operand:SF 1 "register_operand" "%r,x")
                   2387:                 (match_operand:SF 2 "register_operand" "r,x")))]
                   2388:   ""
                   2389:   "fmul.sss %0,%1,%2"
                   2390:   [(set_attr "type" "spmul")])
                   2391: 
                   2392: ;;- divide instructions
                   2393: ;;
                   2394: ;; The 88k div and divu instructions don't reliably trap on
                   2395: ;; divide-by-zero.  A trap to vector 503 asserts divide-by-zero.  The
                   2396: ;; general scheme for doing divide is to do a 4-way split based on the
                   2397: ;; sign of the two operand and do the appropriate negates.
                   2398: ;;
                   2399: ;; The conditional trap instruction is not used as this serializes the
                   2400: ;; processor.  Instead a conditional branch and an unconditional trap
                   2401: ;; are used, but after the divu.  Since the divu takes up to 38 cycles,
                   2402: ;; the conditional branch is essentially free.
                   2403: ;;
                   2404: ;; Two target options control how divide is done.  One options selects
                   2405: ;; whether to do the branch and negate scheme instead of using the div
                   2406: ;; instruction; the other option selects whether to explicitly check
                   2407: ;; for divide-by-zero or take your chances.  If the div instruction is
                   2408: ;; used, the O/S must complete the operation if the operands are
                   2409: ;; negative.  The O/S will signal an overflow condition if the most
                   2410: ;; negative number (-214783648) is divided by negative 1.
                   2411: ;;
                   2412: ;; There is an unfounded silicon eratta for E.1 requiring that an
                   2413: ;; immediate constant value in div/divu/mul instructions be less than
                   2414: ;; 0x800.  This is no longer provided for.
                   2415: 
                   2416: ;; Division by 0 trap
                   2417: (define_insn "trap_divide_by_zero"
                   2418:   [(trap_if (const_int 1) 503)]
                   2419:   ""
                   2420:   "tb0 0,%#r0,503"
                   2421:   [(set_attr "type" "weird")])
                   2422: 
                   2423: ;; Conditional division by 0 trap.
                   2424: (define_expand "tcnd_divide_by_zero"
                   2425:   [(set (pc)
                   2426:        (if_then_else (eq (match_operand:SI 0 "register_operand" "")
                   2427:                          (const_int 0))
                   2428:                      (pc)
                   2429:                      (match_operand 1 "" "")))
                   2430:    (trap_if (const_int 1) 503)]
                   2431:   ""
                   2432:   "
                   2433: {
                   2434:   emit_insn (gen_cmpsi (operands[0], const0_rtx));
                   2435:   emit_jump_insn (gen_bne (operands[1]));
                   2436:   emit_insn (gen_trap_divide_by_zero ());
                   2437:   DONE;
                   2438: }")
                   2439: 
                   2440: (define_expand "divsi3"
                   2441:   [(set (match_operand:SI 0 "register_operand" "")
                   2442:        (div:SI (match_operand:SI 1 "arith32_operand" "")
                   2443:                (match_operand:SI 2 "arith32_operand" "")))]
                   2444:   ""
                   2445:   "
                   2446: {
                   2447:   rtx op0 = operands[0];
                   2448:   rtx op1 = operands[1];
                   2449:   rtx op2 = operands[2];
                   2450:   rtx join_label;
                   2451: 
                   2452:   /* @@ This needs to be reworked.  Torbjorn Granlund has suggested making
                   2453:      it a runtime (perhaps quite special).  */
                   2454: 
                   2455:   if (GET_CODE (op1) == CONST_INT)
                   2456:     op1 = force_reg (SImode, op1);
                   2457: 
                   2458:   else if (GET_CODE (op2) == CONST_INT
                   2459:           && ! SMALL_INT (operands[2]))
                   2460:     op2 = force_reg (SImode, op2);
                   2461: 
                   2462:   if (op2 == const0_rtx)
                   2463:     {
                   2464:       emit_insn (gen_trap_divide_by_zero ());
                   2465:       emit_insn (gen_dummy (op0));
                   2466:       DONE;
                   2467:     }
                   2468: 
                   2469:   if (TARGET_USE_DIV)
                   2470:     {
                   2471:       emit_move_insn (op0, gen_rtx (DIV, SImode, op1, op2));
                   2472:       if (TARGET_CHECK_ZERO_DIV && GET_CODE (op2) != CONST_INT)
                   2473:        {
                   2474:          rtx label = gen_label_rtx ();
                   2475:          emit_insn (gen_tcnd_divide_by_zero (op2, label));
                   2476:          emit_label (label);
                   2477:          emit_insn (gen_dummy (op0));
                   2478:        }
                   2479:       DONE;
                   2480:     }
                   2481: 
                   2482:   join_label = gen_label_rtx ();
                   2483:   if (GET_CODE (op1) == CONST_INT)
                   2484:     {
                   2485:       int neg = FALSE;
                   2486:       rtx neg_op2 = gen_reg_rtx (SImode);
                   2487:       rtx label1 = gen_label_rtx ();
                   2488: 
                   2489:       if (INTVAL (op1) < 0)
                   2490:        {
                   2491:          neg = TRUE;
                   2492:          op1 = gen_rtx (CONST_INT, VOIDmode, -INTVAL (op1));
                   2493:        }
                   2494:       op1 = force_reg (SImode, op1);
                   2495: 
                   2496:       emit_insn (gen_negsi2 (neg_op2, op2));
                   2497:       emit_insn (gen_cmpsi (op2, const0_rtx));
                   2498:       emit_jump_insn (gen_bgt (label1));
                   2499:                                                /* constant / 0-or-negative */
                   2500:       emit_move_insn (op0, gen_rtx (UDIV, SImode, op1, neg_op2));
                   2501:       if (!neg)
                   2502:        emit_insn (gen_negsi2 (op0, op0));
                   2503: 
                   2504:       if (TARGET_CHECK_ZERO_DIV)
                   2505:        emit_insn (gen_tcnd_divide_by_zero (op2, join_label));
                   2506:       emit_jump_insn (gen_jump (join_label));
                   2507:       emit_barrier ();
                   2508: 
                   2509:       emit_label (label1);                     /* constant / positive */
                   2510:       emit_move_insn (op0, gen_rtx (UDIV, SImode, op1, op2));
                   2511:       if (neg)
                   2512:        emit_insn (gen_negsi2 (op0, op0));
                   2513:     }
                   2514: 
                   2515:   else if (GET_CODE (op2) == CONST_INT)
                   2516:     {
                   2517:       int neg = FALSE;
                   2518:       rtx neg_op1 = gen_reg_rtx (SImode);
                   2519:       rtx label1 = gen_label_rtx ();
                   2520: 
                   2521:       if (INTVAL (op2) < 0)
                   2522:        {
                   2523:          neg = TRUE;
                   2524:          op2 = gen_rtx (CONST_INT, VOIDmode, -INTVAL (op2));
                   2525:        }
                   2526:       else if (! SMALL_INT (operands[2]))
                   2527:        op2 = force_reg (SImode, op2);
                   2528: 
                   2529:       emit_insn (gen_negsi2 (neg_op1, op1));
                   2530:       emit_insn (gen_cmpsi (op1, const0_rtx));
                   2531:       emit_jump_insn (gen_bge (label1));
                   2532:                                                /* 0-or-negative / constant */
                   2533:       emit_move_insn (op0, gen_rtx (UDIV, SImode, neg_op1, op2));
                   2534:       if (!neg)
                   2535:        emit_insn (gen_negsi2 (op0, op0));
                   2536: 
                   2537:       emit_jump_insn (gen_jump (join_label));
                   2538:       emit_barrier ();
                   2539: 
                   2540:       emit_label (label1);                     /* positive / constant */
                   2541:       emit_move_insn (op0, gen_rtx (UDIV, SImode, op1, op2));
                   2542:       if (neg)
                   2543:        emit_insn (gen_negsi2 (op0, op0));
                   2544:     }
                   2545: 
                   2546:   else
                   2547:     {
                   2548:       rtx neg_op1 = gen_reg_rtx (SImode);
                   2549:       rtx neg_op2 = gen_reg_rtx (SImode);
                   2550:       rtx label1 = gen_label_rtx ();
                   2551:       rtx label2 = gen_label_rtx ();
                   2552:       rtx label3 = gen_label_rtx ();
                   2553:       rtx label4;
                   2554: 
                   2555:       emit_insn (gen_negsi2 (neg_op2, op2));
                   2556:       emit_insn (gen_cmpsi (op2, const0_rtx));
                   2557:       emit_jump_insn (gen_bgt (label1));
                   2558: 
                   2559:       emit_insn (gen_negsi2 (neg_op1, op1));
                   2560:       emit_insn (gen_cmpsi (op1, const0_rtx));
                   2561:       emit_jump_insn (gen_bge (label2));
                   2562:                                                /* negative / negative-or-0 */
                   2563:       emit_move_insn (op0, gen_rtx (UDIV, SImode, neg_op1, neg_op2));
                   2564: 
                   2565:       if (TARGET_CHECK_ZERO_DIV)
                   2566:        {
                   2567:          label4 = gen_label_rtx ();
                   2568:          emit_insn (gen_cmpsi (op2, const0_rtx));
                   2569:          emit_jump_insn (gen_bne (join_label));
                   2570:          emit_label (label4);
                   2571:          emit_insn (gen_trap_divide_by_zero ());
                   2572:        }
                   2573:       emit_jump_insn (gen_jump (join_label));
                   2574:       emit_barrier ();
                   2575: 
                   2576:       emit_label (label2);                     /* pos.-or-0 / neg.-or-0 */
                   2577:       emit_move_insn (op0, gen_rtx (UDIV, SImode, op1, neg_op2));
                   2578: 
                   2579:       if (TARGET_CHECK_ZERO_DIV)
                   2580:        {
                   2581:          emit_insn (gen_cmpsi (op2, const0_rtx));
                   2582:          emit_jump_insn (gen_beq (label4));
                   2583:        }
                   2584: 
                   2585:       emit_insn (gen_negsi2 (op0, op0));
                   2586:       emit_jump_insn (gen_jump (join_label));
                   2587:       emit_barrier ();
                   2588: 
                   2589:       emit_label (label1);
                   2590:       emit_insn (gen_negsi2 (neg_op1, op1));
                   2591:       emit_insn (gen_cmpsi (op1, const0_rtx));
                   2592:       emit_jump_insn (gen_bge (label3));
                   2593:                                                /* negative / positive */
                   2594:       emit_move_insn (op0, gen_rtx (UDIV, SImode, neg_op1, op2));
                   2595:       emit_insn (gen_negsi2 (op0, op0));
                   2596:       emit_jump_insn (gen_jump (join_label));
                   2597:       emit_barrier ();
                   2598: 
                   2599:       emit_label (label3);                     /* positive-or-0 / positive */
                   2600:       emit_move_insn (op0, gen_rtx (UDIV, SImode, op1, op2));
                   2601:     }
                   2602: 
                   2603:   emit_label (join_label);
                   2604: 
                   2605:   emit_insn (gen_dummy (op0));
                   2606:   DONE;
                   2607: }")
                   2608: 
                   2609: (define_insn ""
                   2610:   [(set (match_operand:SI 0 "register_operand" "=r")
                   2611:        (div:SI (match_operand:SI 1 "register_operand" "r")
                   2612:                (match_operand:SI 2 "arith_operand" "rI")))]
                   2613:   ""
                   2614:   "div %0,%1,%2"
                   2615:   [(set_attr "type" "idiv")])
                   2616: 
                   2617: (define_expand "udivsi3"
                   2618:   [(set (match_operand:SI 0 "register_operand" "")
                   2619:        (udiv:SI (match_operand:SI 1 "register_operand" "")
                   2620:                 (match_operand:SI 2 "arith32_operand" "")))]
                   2621:   ""
                   2622:   "
                   2623: {
                   2624:   rtx op2 = operands[2];
                   2625: 
                   2626:   if (op2 == const0_rtx)
                   2627:     {
                   2628:       emit_insn (gen_trap_divide_by_zero ());
                   2629:       emit_insn (gen_dummy (operands[0]));
                   2630:       DONE;
                   2631:     }
                   2632:   else if (GET_CODE (op2) != CONST_INT && TARGET_CHECK_ZERO_DIV)
                   2633:     {
                   2634:       rtx label = gen_label_rtx ();
                   2635:       emit_insn (gen_rtx (SET, VOIDmode, operands[0],
                   2636:                          gen_rtx (UDIV, SImode, operands[1], op2)));
                   2637:       emit_insn (gen_tcnd_divide_by_zero (op2, label));
                   2638:       emit_label (label);
                   2639:       emit_insn (gen_dummy (operands[0]));
                   2640:       DONE;
                   2641:     }
                   2642: }")
                   2643: 
                   2644: (define_insn ""
                   2645:  [(set (match_operand:SI 0 "register_operand" "=r")
                   2646:        (udiv:SI (match_operand:SI 1 "register_operand" "r")
                   2647:                (match_operand:SI 2 "arith32_operand" "rI")))]
                   2648:   "operands[2] != const0_rtx"
                   2649:   "divu %0,%1,%2"
                   2650:   [(set_attr "type" "idiv")])
                   2651: 
                   2652: (define_insn ""
                   2653:  [(set (match_operand:SI 0 "register_operand" "=r")
                   2654:        (udiv:SI (match_operand:SI 1 "register_operand" "r")
                   2655:                (const_int 0)))]
                   2656:   ""
                   2657:   "tb0 0,%#r0,503"
                   2658:   [(set_attr "type" "weird")])
                   2659: 
                   2660: ;; patterns for mixed mode floating point.
                   2661: ;; Do not define patterns that utilize mixed mode arithmetic that result
                   2662: ;; in narrowing the precision, because it loses accuracy, since the standard
                   2663: ;; requires double rounding, whereas the 88000 instruction only rounds once.
                   2664: 
                   2665: (define_expand "divdf3"
                   2666:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2667:        (div:DF (match_operand:DF 1 "general_operand" "r,x")
                   2668:                (match_operand:DF 2 "general_operand" "r,x")))]
                   2669:   ""
                   2670:   "
                   2671: {
                   2672:   operands[1] = legitimize_operand (operands[1], DFmode);
                   2673:   if (real_power_of_2_operand (operands[2]))
                   2674:     {
                   2675:       union real_extract u;
                   2676:       bcopy (&CONST_DOUBLE_LOW (operands[2]), &u, sizeof u);
                   2677:       emit_insn (gen_muldf3 (operands[0], operands[1],
                   2678:                             CONST_DOUBLE_FROM_REAL_VALUE (1.0/u.d, DFmode)));
                   2679:       DONE;
                   2680:     }
                   2681:   else if (! register_operand (operands[2], DFmode))
                   2682:     operands[2] = force_reg (DFmode, operands[2]);
                   2683: }")
                   2684: 
                   2685: (define_insn ""
                   2686:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2687:        (div:DF (float_extend:DF (match_operand:SF 1 "register_operand" "r,x"))
                   2688:                (float_extend:DF (match_operand:SF 2 "register_operand" "r,x"))))]
                   2689:   ""
                   2690:   "fdiv.dss %0,%1,%2"
                   2691:   [(set_attr "type" "dpdiv")])
                   2692: 
                   2693: (define_insn ""
                   2694:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2695:        (div:DF (match_operand:DF 1 "register_operand" "r,x")
                   2696:                (float_extend:DF (match_operand:SF 2 "register_operand" "r,x"))))]
                   2697:   ""
                   2698:   "fdiv.dds %0,%1,%2"
                   2699:   [(set_attr "type" "dpdiv")])
                   2700: 
                   2701: (define_insn ""
                   2702:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2703:        (div:DF (float_extend:DF (match_operand:SF 1 "register_operand" "r,x"))
                   2704:                (match_operand:DF 2 "register_operand" "r,x")))]
                   2705:   ""
                   2706:   "fdiv.dsd %0,%1,%2"
                   2707:   [(set_attr "type" "dpdiv")])
                   2708: 
                   2709: (define_insn "divsf3"
                   2710:   [(set (match_operand:SF 0 "register_operand" "=r,x")
                   2711:        (div:SF (match_operand:SF 1 "register_operand" "r,x")
                   2712:                (match_operand:SF 2 "register_operand" "r,x")))]
                   2713:   ""
                   2714:   "fdiv.sss %0,%1,%2"
                   2715:   [(set_attr "type" "spdiv")])
                   2716: 
                   2717: (define_insn ""
                   2718:   [(set (match_operand:DF 0 "register_operand" "=r,x")
                   2719:        (div:DF (match_operand:DF 1 "register_operand" "r,x")
                   2720:                (match_operand:DF 2 "register_operand" "r,x")))]
                   2721:   ""
                   2722:   "fdiv.ddd %0,%1,%2"
                   2723:   [(set_attr "type" "dpdiv")])
                   2724: 
                   2725: ;; - remainder instructions, don't define, since the hardware doesn't have any
                   2726: ;; direct support, and GNU can synthesis them out of div/mul just fine.
                   2727: 
                   2728: ;;- load effective address, must come after add, so that we favor using
                   2729: ;;  addu reg,reg,reg  instead of:  lda reg,reg,reg (addu doesn't require
                   2730: ;;  the data unit), and also future 88k chips might not support unscaled
                   2731: ;;  lda instructions.
                   2732: 
                   2733: (define_insn ""
                   2734:   [(set (match_operand:SI 0 "register_operand" "=r")
                   2735:        (match_operand:SI 1 "address_operand" "p"))]
                   2736:   "m88k_gp_threshold > 0 && symbolic_address_p (operands[1])"
                   2737:   "addu %0,%a1")
                   2738: 
                   2739: (define_insn ""
                   2740:   [(set (match_operand:SI 0 "register_operand" "=r")
                   2741:        (match_operand:HI 1 "address_operand" "p"))]
                   2742:   ""
                   2743:   "lda.h %0,%a1"
                   2744:   [(set_attr "type" "loada")])
                   2745: 
                   2746: (define_insn ""
                   2747:   [(set (match_operand:SI 0 "register_operand" "=r")
                   2748:        (match_operand:SI 1 "address_operand" "p"))]
                   2749:   ""
                   2750:   "lda %0,%a1"
                   2751:   [(set_attr "type" "loada")])
                   2752: 
                   2753: (define_insn ""
                   2754:   [(set (match_operand:SI 0 "register_operand" "=r")
                   2755:        (match_operand:DI 1 "address_operand" "p"))]
                   2756:   ""
                   2757:   "lda.d %0,%a1"
                   2758:   [(set_attr "type" "loada")])
                   2759: 
                   2760: (define_insn ""
                   2761:   [(set (match_operand:SI 0 "register_operand" "=r")
                   2762:        (match_operand:SF 1 "address_operand" "p"))]
                   2763:   ""
                   2764:   "lda %0,%a1"
                   2765:   [(set_attr "type" "loada")])
                   2766: 
                   2767: (define_insn ""
                   2768:   [(set (match_operand:SI 0 "register_operand" "=r")
                   2769:        (match_operand:DF 1 "address_operand" "p"))]
                   2770:   ""
                   2771:   "lda.d %0,%a1"
                   2772:   [(set_attr "type" "loada")])
                   2773: 
                   2774: ;;- and instructions (with complement also)
                   2775: (define_insn ""
                   2776:   [(set (match_operand:SI 0 "register_operand" "=r")
                   2777:        (and:SI (not:SI (match_operand:SI 1 "register_operand" "r"))
                   2778:                (match_operand:SI 2 "register_operand" "r")))]
                   2779:   ""
                   2780:   "and.c %0,%2,%1")
                   2781: 
                   2782: ;; If the operation is being performed on a 32-bit constant such that
                   2783: ;; it cannot be done in one insn, do it in two.  We may lose a bit on
                   2784: ;; CSE in pathological cases, but it seems better doing it this way.
                   2785: 
                   2786: (define_expand "andsi3"
                   2787:   [(set (match_operand:SI 0 "register_operand" "")
                   2788:        (and:SI (match_operand:SI 1 "arith32_operand" "")
                   2789:                (match_operand:SI 2 "arith32_operand" "")))]
                   2790:   ""
                   2791:   "
                   2792: {
                   2793:   if (GET_CODE (operands[2]) == CONST_INT)
                   2794:     {
                   2795:       int value = INTVAL (operands[2]);
                   2796: 
                   2797:       if (! (SMALL_INTVAL (value)
                   2798:             || (value & 0xffff0000) == 0xffff0000
                   2799:             || (value & 0xffff) == 0xffff
                   2800:             || (value & 0xffff) == 0
                   2801:             || integer_ok_for_set (~value)))
                   2802:        {
                   2803:          emit_insn (gen_andsi3 (operands[0], operands[1],
                   2804:                                 gen_rtx (CONST_INT, VOIDmode,
                   2805:                                          value | 0xffff)));
                   2806:          operands[1] = operands[0];
                   2807:          operands[2] = gen_rtx (CONST_INT, VOIDmode, value | 0xffff0000);
                   2808:        }
                   2809:     }
                   2810: }")
                   2811: 
                   2812: (define_insn ""
                   2813:   [(set (match_operand:SI 0 "register_operand" "=r,r")
                   2814:        (and:SI (match_operand:SI 1 "arith32_operand" "%r,r")
                   2815:                (match_operand:SI 2 "arith32_operand" "rIJL,rn")))]
                   2816:   ""
                   2817:   "* return output_and (operands);"
                   2818:   [(set_attr "type" "arith,marith")])
                   2819: 
                   2820: (define_insn ""
                   2821:   [(set (match_operand:DI 0 "register_operand" "=r")
                   2822:        (and:DI (not:DI (match_operand:DI 1 "register_operand" "r"))
                   2823:                (match_operand:DI 2 "register_operand" "r")))]
                   2824:   ""
                   2825:   "and.c %d0,%d2,%d1\;and.c %0,%2,%1"
                   2826:   [(set_attr "type" "marith")])
                   2827: 
                   2828: (define_insn "anddi3"
                   2829:   [(set (match_operand:DI 0 "register_operand" "=r")
                   2830:        (and:DI (match_operand:DI 1 "arith64_operand" "%r")
                   2831:                (match_operand:DI 2 "arith64_operand" "rn")))]
                   2832:   ""
                   2833:   "*
                   2834: {
                   2835:   rtx xoperands[10];
                   2836: 
                   2837:   xoperands[0] = operand_subword (operands[0], 1, 0, DImode);
                   2838:   xoperands[1] = operand_subword (operands[1], 1, 0, DImode);
                   2839:   xoperands[2] = operand_subword (operands[2], 1, 0, DImode);
                   2840: 
                   2841:   output_asm_insn (output_and (xoperands), xoperands);
                   2842: 
                   2843:   operands[0] = operand_subword (operands[0], 0, 0, DImode);
                   2844:   operands[1] = operand_subword (operands[1], 0, 0, DImode);
                   2845:   operands[2] = operand_subword (operands[2], 0, 0, DImode);
                   2846: 
                   2847:   return output_and (operands);
                   2848: }"
                   2849:   [(set_attr "type" "marith")
                   2850:    (set_attr "length" "4")]) ; length is 2, 3, or 4.
                   2851: 
                   2852: ;;- Bit set (inclusive or) instructions (with complement also)
                   2853: (define_insn ""
                   2854:   [(set (match_operand:SI 0 "register_operand" "=r")
                   2855:        (ior:SI (not:SI (match_operand:SI 1 "register_operand" "r"))
                   2856:                (match_operand:SI 2 "register_operand" "r")))]
                   2857:   ""
                   2858:   "or.c %0,%2,%1")
                   2859: 
                   2860: (define_expand "iorsi3"
                   2861:   [(set (match_operand:SI 0 "register_operand" "")
                   2862:        (ior:SI (match_operand:SI 1 "arith32_operand" "")
                   2863:                (match_operand:SI 2 "arith32_operand" "")))]
                   2864:   ""
                   2865:   "
                   2866: {
                   2867:   if (GET_CODE (operands[2]) == CONST_INT)
                   2868:     {
                   2869:       int value = INTVAL (operands[2]);
                   2870: 
                   2871:       if (! (SMALL_INTVAL (value)
                   2872:             || (value & 0xffff) == 0
                   2873:             || integer_ok_for_set (value)))
                   2874:        {
                   2875:          emit_insn (gen_iorsi3 (operands[0], operands[1],
                   2876:                                 gen_rtx (CONST_INT, VOIDmode,
                   2877:                                          value & 0xffff0000)));
                   2878:          operands[1] = operands[0];
                   2879:          operands[2] = gen_rtx (CONST_INT, VOIDmode, value & 0xffff);
                   2880:        }
                   2881:     }
                   2882: }")
                   2883: 
                   2884: (define_insn ""
                   2885:   [(set (match_operand:SI 0 "register_operand" "=r,r,r,r")
                   2886:        (ior:SI (match_operand:SI 1 "arith32_operand" "%r,r,r,r")
                   2887:                (match_operand:SI 2 "arith32_operand" "rI,L,M,n")))]
                   2888:   ""
                   2889:   "@
                   2890:    or %0,%1,%2
                   2891:    or.u %0,%1,%X2
                   2892:    set %0,%1,%s2
                   2893:    or.u %0,%1,%X2\;or %0,%0,%x2"
                   2894:   [(set_attr "type" "arith,arith,bit,marith")])
                   2895: 
                   2896: (define_insn ""
                   2897:   [(set (match_operand:DI 0 "register_operand" "=r")
                   2898:        (ior:DI (not:DI (match_operand:DI 1 "register_operand" "r"))
                   2899:                (match_operand:DI 2 "register_operand" "r")))]
                   2900:   ""
                   2901:   "or.c %d0,%d2,%d1\;or.c %0,%2,%1"
                   2902:   [(set_attr "type" "marith")])
                   2903: 
                   2904: (define_insn "iordi3"
                   2905:   [(set (match_operand:DI 0 "register_operand" "=r")
                   2906:        (ior:DI (match_operand:DI 1 "arith64_operand" "%r")
                   2907:                (match_operand:DI 2 "arith64_operand" "rn")))]
                   2908:   ""
                   2909:   "*
                   2910: {
                   2911:   rtx xoperands[10];
                   2912: 
                   2913:   xoperands[0] = operand_subword (operands[0], 1, 0, DImode);
                   2914:   xoperands[1] = operand_subword (operands[1], 1, 0, DImode);
                   2915:   xoperands[2] = operand_subword (operands[2], 1, 0, DImode);
                   2916: 
                   2917:   output_asm_insn (output_ior (xoperands), xoperands);
                   2918: 
                   2919:   operands[0] = operand_subword (operands[0], 0, 0, DImode);
                   2920:   operands[1] = operand_subword (operands[1], 0, 0, DImode);
                   2921:   operands[2] = operand_subword (operands[2], 0, 0, DImode);
                   2922: 
                   2923:   return output_ior (operands);
                   2924: }"
                   2925:   [(set_attr "type" "marith")
                   2926:    (set_attr "length" "4")]) ; length is 2, 3, or 4.
                   2927: 
                   2928: ;;- xor instructions (with complement also)
                   2929: (define_insn ""
                   2930:   [(set (match_operand:SI 0 "register_operand" "=r")
                   2931:        (not:SI (xor:SI (match_operand:SI 1 "register_operand" "%r")
                   2932:                        (match_operand:SI 2 "register_operand" "r"))))]
                   2933:   ""
                   2934:   "xor.c %0,%1,%2")
                   2935: 
                   2936: (define_expand "xorsi3"
                   2937:   [(set (match_operand:SI 0 "register_operand" "")
                   2938:        (xor:SI (match_operand:SI 1 "arith32_operand" "")
                   2939:                (match_operand:SI 2 "arith32_operand" "")))]
                   2940:   ""
                   2941:   "
                   2942: {
                   2943:   if (GET_CODE (operands[2]) == CONST_INT)
                   2944:     {
                   2945:       int value = INTVAL (operands[2]);
                   2946: 
                   2947:       if (! (SMALL_INTVAL (value)
                   2948:             || (value & 0xffff) == 0))
                   2949:        {
                   2950:          emit_insn (gen_xorsi3 (operands[0], operands[1],
                   2951:                                 gen_rtx (CONST_INT, VOIDmode,
                   2952:                                          value & 0xffff0000)));
                   2953:          operands[1] = operands[0];
                   2954:          operands[2] = gen_rtx (CONST_INT, VOIDmode, value & 0xffff);
                   2955:        }
                   2956:     }
                   2957: }")
                   2958: 
                   2959: (define_insn ""
                   2960:   [(set (match_operand:SI 0 "register_operand" "=r,r,r")
                   2961:        (xor:SI (match_operand:SI 1 "arith32_operand" "%r,r,r")
                   2962:                (match_operand:SI 2 "arith32_operand" "rI,L,n")))]
                   2963:   ""
                   2964:   "@
                   2965:    xor %0,%1,%2
                   2966:    xor.u %0,%1,%X2
                   2967:    xor.u %0,%1,%X2\;xor %0,%0,%x2"
                   2968:   [(set_attr "type" "arith,arith,marith")])
                   2969: 
                   2970: (define_insn ""
                   2971:   [(set (match_operand:DI 0 "register_operand" "=r")
                   2972:        (not:DI (xor:DI (match_operand:DI 1 "register_operand" "r")
                   2973:                        (match_operand:DI 2 "register_operand" "r"))))]
                   2974:   ""
                   2975:   "xor.c %d0,%d1,%d2\;xor.c %0,%1,%2"
                   2976:   [(set_attr "type" "marith")])
                   2977: 
                   2978: (define_insn "xordi3"
                   2979:   [(set (match_operand:DI 0 "register_operand" "=r")
                   2980:        (xor:DI (match_operand:DI 1 "arith64_operand" "%r")
                   2981:                (match_operand:DI 2 "arith64_operand" "rn")))]
                   2982:   ""
                   2983:   "*
                   2984: {
                   2985:   rtx xoperands[10];
                   2986: 
                   2987:   xoperands[0] = operand_subword (operands[0], 1, 0, DImode);
                   2988:   xoperands[1] = operand_subword (operands[1], 1, 0, DImode);
                   2989:   xoperands[2] = operand_subword (operands[2], 1, 0, DImode);
                   2990: 
                   2991:   output_asm_insn (output_xor (xoperands), xoperands);
                   2992: 
                   2993:   operands[0] = operand_subword (operands[0], 0, 0, DImode);
                   2994:   operands[1] = operand_subword (operands[1], 0, 0, DImode);
                   2995:   operands[2] = operand_subword (operands[2], 0, 0, DImode);
                   2996: 
                   2997:   return output_xor (operands);
                   2998: }"
                   2999:   [(set_attr "type" "marith")
                   3000:    (set_attr "length" "4")]) ; length is 2, 3, or 4.
                   3001: 
                   3002: ;;- ones complement instructions
                   3003: (define_insn "one_cmplsi2"
                   3004:   [(set (match_operand:SI 0 "register_operand" "=r")
                   3005:        (not:SI (match_operand:SI 1 "register_operand" "r")))]
                   3006:   ""
                   3007:   "xor.c %0,%1,%#r0")
                   3008: 
                   3009: (define_insn "one_cmpldi2"
                   3010:   [(set (match_operand:DI 0 "register_operand" "=r")
                   3011:        (not:DI (match_operand:DI 1 "register_operand" "r")))]
                   3012:   ""
                   3013:   "xor.c %d0,%d1,%#r0\;xor.c %0,%1,%#r0"
                   3014:   [(set_attr "type" "marith")])
                   3015: 
                   3016: ;; Optimized special cases of shifting.
                   3017: ;; Must precede the general case.
                   3018: 
                   3019: ;; @@ What about HImode shifted by 8?
                   3020: 
                   3021: (define_insn ""
                   3022:   [(set (match_operand:SI 0 "register_operand" "=r")
                   3023:        (ashiftrt:SI (match_operand:SI 1 "memory_operand" "m")
                   3024:                     (const_int 24)))]
                   3025:   "! SCALED_ADDRESS_P (XEXP (operands[1], 0))"
                   3026:   "%V1ld.b\\t %0,%1"
                   3027:   [(set_attr "type" "load")])
                   3028: 
                   3029: (define_insn ""
                   3030:   [(set (match_operand:SI 0 "register_operand" "=r")
                   3031:        (lshiftrt:SI (match_operand:SI 1 "memory_operand" "m")
                   3032:                     (const_int 24)))]
                   3033:   "! SCALED_ADDRESS_P (XEXP (operands[1], 0))"
                   3034:   "%V1ld.bu\\t %0,%1"
                   3035:   [(set_attr "type" "load")])
                   3036: 
                   3037: (define_insn ""
                   3038:   [(set (match_operand:SI 0 "register_operand" "=r")
                   3039:        (ashiftrt:SI (match_operand:SI 1 "memory_operand" "m")
                   3040:                     (const_int 16)))]
                   3041:   "! SCALED_ADDRESS_P (XEXP (operands[1], 0))"
                   3042:   "%V1ld.h\\t %0,%1"
                   3043:   [(set_attr "type" "load")])
                   3044: 
                   3045: (define_insn ""
                   3046:   [(set (match_operand:SI 0 "register_operand" "=r")
                   3047:        (lshiftrt:SI (match_operand:SI 1 "memory_operand" "m")
                   3048:                     (const_int 16)))]
                   3049:   "! SCALED_ADDRESS_P (XEXP (operands[1], 0))"
                   3050:   "%V1ld.hu\\t %0,%1"
                   3051:   [(set_attr "type" "load")])
                   3052: 
                   3053: ;;- arithmetic shift instructions.
                   3054: 
                   3055: ;; @@ Do the optimized patterns with -1 get used?  Perhaps operand 1 should
                   3056: ;; be arith32_operand?
                   3057: 
                   3058: ;; Use tbnd to support TARGET_TRAP_LARGE_SHIFT.
                   3059: (define_insn "tbnd"
                   3060:   [(trap_if (gtu (match_operand:SI 0 "register_operand" "r")
                   3061:                 (match_operand:SI 1 "arith_operand" "rI"))
                   3062:            7)]
                   3063:   ""
                   3064:   "tbnd %r0,%1"
                   3065:   [(set_attr "type" "weird")])
                   3066: 
                   3067: ;; Just in case the optimizer decides to fold away the test.
                   3068: (define_insn ""
                   3069:   [(trap_if (const_int 1) 7)]
                   3070:   ""
                   3071:   "tbnd %#r31,0"
                   3072:   [(set_attr "type" "weird")])
                   3073: 
                   3074: (define_expand "ashlsi3"
                   3075:   [(set (match_operand:SI 0 "register_operand" "")
                   3076:        (ashift:SI (match_operand:SI 1 "register_operand" "")
                   3077:                   (match_operand:SI 2 "arith32_operand" "")))]
                   3078:   ""
                   3079:   "
                   3080: {
                   3081:   if (GET_CODE (operands[2]) == CONST_INT)
                   3082:     {
                   3083:       if ((unsigned) INTVAL (operands[2]) > 31)
                   3084:        {
                   3085:          if (TARGET_TRAP_LARGE_SHIFT)
                   3086:            emit_insn (gen_tbnd (force_reg (SImode, operands[2]),
                   3087:                                 gen_rtx (CONST_INT, VOIDmode, 31)));
                   3088:          else
                   3089:            emit_move_insn (operands[0], const0_rtx);
                   3090:          DONE;
                   3091:        }
                   3092:     }
                   3093: 
                   3094:   else if (TARGET_TRAP_LARGE_SHIFT)
                   3095:     emit_insn (gen_tbnd (operands[2], gen_rtx (CONST_INT, VOIDmode, 31)));
                   3096: 
                   3097:   else if (TARGET_HANDLE_LARGE_SHIFT)
                   3098:     {
                   3099:       rtx reg = gen_reg_rtx (SImode);
                   3100:       emit_insn (gen_cmpsi (operands[2], gen_rtx (CONST_INT, VOIDmode, 31)));
                   3101:       emit_insn (gen_sleu (reg));
                   3102:       emit_insn (gen_andsi3 (reg, operands[1], reg));
                   3103:       operands[1] = reg;
                   3104:     }
                   3105: }")
                   3106: 
                   3107: (define_insn ""
                   3108:   [(set (match_operand:SI 0 "register_operand" "=r,r")
                   3109:        (ashift:SI (match_operand:SI 1 "register_operand" "r,r")
                   3110:                   (match_operand:SI 2 "arith5_operand" "r,K")))]
                   3111:   ""
                   3112:   "@
                   3113:    mak %0,%1,%2
                   3114:    mak %0,%1,0<%2>"
                   3115:   [(set_attr "type" "bit")])
                   3116: 
                   3117: (define_expand "ashrsi3"
                   3118:   [(set (match_operand:SI 0 "register_operand" "")
                   3119:        (ashiftrt:SI (match_operand:SI 1 "register_operand" "")
                   3120:                     (match_operand:SI 2 "arith32_operand" "")))]
                   3121:   ""
                   3122:   "
                   3123: {
                   3124:   if (GET_CODE (operands[2]) == CONST_INT)
                   3125:     {
                   3126:       if ((unsigned) INTVAL (operands[2]) > 31)
                   3127:        {
                   3128:          if (TARGET_TRAP_LARGE_SHIFT)
                   3129:            {
                   3130:              emit_insn (gen_tbnd (force_reg (SImode, operands[2]),
                   3131:                                   gen_rtx (CONST_INT, VOIDmode, 31)));
                   3132:              DONE;
                   3133:            }
                   3134:          else
                   3135:            operands[2] = gen_rtx (CONST_INT, VOIDmode, 31);
                   3136:        }
                   3137:     }
                   3138: 
                   3139:   else if (TARGET_TRAP_LARGE_SHIFT)
                   3140:     emit_insn (gen_tbnd (operands[2], gen_rtx (CONST_INT, VOIDmode, 31)));
                   3141: 
                   3142:   else if (TARGET_HANDLE_LARGE_SHIFT)
                   3143:     {
                   3144:       rtx reg = gen_reg_rtx (SImode);
                   3145:       emit_insn (gen_cmpsi (operands[2], gen_rtx (CONST_INT, VOIDmode, 31)));
                   3146:       emit_insn (gen_sgtu (reg));
                   3147:       emit_insn (gen_iorsi3 (reg, operands[2], reg));
                   3148:       operands[2] = reg;
                   3149:     }
                   3150: }")
                   3151: 
                   3152: (define_insn ""
                   3153:   [(set (match_operand:SI 0 "register_operand" "=r,r")
                   3154:        (ashiftrt:SI (match_operand:SI 1 "register_operand" "r,r")
                   3155:                     (match_operand:SI 2 "arith5_operand" "r,K")))]
                   3156:   ""
                   3157:   "@
                   3158:    ext %0,%1,%2
                   3159:    ext %0,%1,0<%2>"
                   3160:   [(set_attr "type" "bit")])
                   3161: 
                   3162: ;;- logical shift instructions.  Logical shift left becomes arithmetic
                   3163: ;; shift left.  LSHIFT is not normally produced, but is supported.
                   3164: 
                   3165: (define_expand "lshlsi3"
                   3166:   [(set (match_operand:SI 0 "register_operand" "")
                   3167:        (lshift:SI (match_operand:SI 1 "register_operand" "")
                   3168:                   (match_operand:SI 2 "arith32_operand" "")))]
                   3169:   ""
                   3170:   "
                   3171: {
                   3172:   emit_insn (gen_ashlsi3 (operands[0], operands[1], operands[2]));
                   3173:   DONE;
                   3174: }")
                   3175: 
                   3176: (define_insn ""
                   3177:   [(set (match_operand:SI 0 "register_operand" "=r,r")
                   3178:        (lshift:SI (match_operand:SI 1 "register_operand" "r,r")
                   3179:                   (match_operand:SI 2 "arith5_operand" "r,K")))]
                   3180:   ""
                   3181:   "@
                   3182:    mak %0,%1,%2
                   3183:    mak %0,%1,0<%2>"
                   3184:   [(set_attr "type" "bit")])
                   3185: 
                   3186: (define_expand "lshrsi3"
                   3187:   [(set (match_operand:SI 0 "register_operand" "")
                   3188:        (lshiftrt:SI (match_operand:SI 1 "register_operand" "")
                   3189:                     (match_operand:SI 2 "arith32_operand" "")))]
                   3190:   ""
                   3191:   "
                   3192: {
                   3193:   if (GET_CODE (operands[2]) == CONST_INT)
                   3194:     {
                   3195:       if ((unsigned) INTVAL (operands[2]) > 31)
                   3196:        {
                   3197:          if (TARGET_TRAP_LARGE_SHIFT)
                   3198:            emit_insn (gen_tbnd (force_reg (SImode, operands[2]),
                   3199:                                 gen_rtx (CONST_INT, VOIDmode, 31)));
                   3200:          else
                   3201:            emit_move_insn (operands[0], const0_rtx);
                   3202:          DONE;
                   3203:        }
                   3204:     }
                   3205: 
                   3206:   else if (TARGET_TRAP_LARGE_SHIFT)
                   3207:     emit_insn (gen_tbnd (operands[2], gen_rtx (CONST_INT, VOIDmode, 31)));
                   3208: 
                   3209:   else if (TARGET_HANDLE_LARGE_SHIFT)
                   3210:     {
                   3211:       rtx reg = gen_reg_rtx (SImode);
                   3212:       emit_insn (gen_cmpsi (operands[2], gen_rtx (CONST_INT, VOIDmode, 31)));
                   3213:       emit_insn (gen_sleu (reg));
                   3214:       emit_insn (gen_andsi3 (reg, operands[1], reg));
                   3215:       operands[1] = reg;
                   3216:     }
                   3217: }")
                   3218: 
                   3219: (define_insn ""
                   3220:   [(set (match_operand:SI 0 "register_operand" "=r,r")
                   3221:        (lshiftrt:SI (match_operand:SI 1 "register_operand" "r,r")
                   3222:                     (match_operand:SI 2 "arith5_operand" "r,K")))]
                   3223:   ""
                   3224:   "@
                   3225:    extu %0,%1,%2
                   3226:    extu %0,%1,0<%2>"
                   3227:   [(set_attr "type" "bit")])
                   3228: 
                   3229: ;;- rotate instructions
                   3230: 
                   3231: (define_expand "rotlsi3"
                   3232:   [(set (match_operand:SI 0 "register_operand" "")
                   3233:        (rotatert:SI (match_operand:SI 1 "register_operand" "")
                   3234:                     (match_operand:SI 2 "arith32_operand" "")))]
                   3235:   ""
                   3236:   "
                   3237: {
                   3238:   if (GET_CODE (operands[2]) == CONST_INT
                   3239:       && (unsigned) INTVAL (operands[2]) >= 32)
                   3240:     operands[2] = gen_rtx (CONST_INT, VOIDmode,
                   3241:                           (32 - INTVAL (operands[2])) % 32);
                   3242:   else
                   3243:     {
                   3244:       rtx op = gen_reg_rtx (SImode);
                   3245:       emit_insn (gen_negsi2 (op, operands[2]));
                   3246:       operands[2] = op;
                   3247:     }
                   3248: }")
                   3249: 
                   3250: (define_insn "rotrsi3"
                   3251:   [(set (match_operand:SI 0 "register_operand" "=r")
                   3252:        (rotatert:SI (match_operand:SI 1 "register_operand" "r")
                   3253:                     (match_operand:SI 2 "arith_operand" "rI")))]
                   3254:   ""
                   3255:   "rot %0,%1,%2"
                   3256:   [(set_attr "type" "bit")])
                   3257: 
                   3258: ;; find first set.
                   3259: 
                   3260: ;; The ff1 instruction searches from the most significant bit while ffs
                   3261: ;; searches from the least significant bit.  The bit index and treatment of
                   3262: ;; zero also differ.  This amazing sequence was discovered using the GNU
                   3263: ;; Superoptimizer.
                   3264: 
                   3265: (define_insn "ffssi2"
                   3266:   [(set (match_operand:SI 0 "register_operand" "=r,&r")
                   3267:        (ffs:SI (match_operand:SI 1 "register_operand" "0,r")))
                   3268:    (clobber (reg:CC 0))
                   3269:    (clobber (match_scratch:SI 2 "=r,X"))]
                   3270:   ""
                   3271:   "@
                   3272:    subu.co %2,%#r0,%1\;and %2,%2,%1\;addu.ci %2,%2,%2\;ff1 %0,%2
                   3273:    subu.co %0,%#r0,%1\;and %0,%0,%1\;addu.ci %0,%0,%0\;ff1 %0,%0"
                   3274:   [(set_attr "type" "marith")
                   3275:    (set_attr "length" "4")])
                   3276: 
                   3277: ;; Bit field instructions.
                   3278: 
                   3279: (define_insn ""
                   3280:   [(set (match_operand:SI 0 "register_operand" "=r")
                   3281:        (sign_extract:SI (match_operand:SI 1 "register_operand" "r")
                   3282:                         (const_int 32)
                   3283:                         (const_int 0)))]
                   3284:   ""
                   3285:   "or %0,%#r0,%1")
                   3286: 
                   3287: (define_insn "extv"
                   3288:   [(set (match_operand:SI 0 "register_operand" "=r")
                   3289:        (sign_extract:SI (match_operand:SI 1 "register_operand" "r")
                   3290:                         (match_operand:SI 2 "int5_operand" "")
                   3291:                         (match_operand:SI 3 "int5_operand" "")))]
                   3292:   ""
                   3293:   "*
                   3294: {
                   3295:   operands[4] = gen_rtx (CONST_INT, SImode,
                   3296:                         (32 - INTVAL (operands[2])) - INTVAL (operands[3]));
                   3297:   return \"ext %0,%1,%2<%4>\";  /* <(32-%2-%3)> */
                   3298: }"
                   3299:   [(set_attr "type" "bit")])
                   3300: 
                   3301: (define_insn ""
                   3302:   [(set (match_operand:SI 0 "register_operand" "=r")
                   3303:        (zero_extract:SI (match_operand:SI 1 "register_operand" "r")
                   3304:                         (const_int 32)
                   3305:                         (const_int 0)))]
                   3306:   ""
                   3307:   "or %0,%#r0,%1")
                   3308: 
                   3309: (define_insn "extzv"
                   3310:   [(set (match_operand:SI 0 "register_operand" "=r")
                   3311:        (zero_extract:SI (match_operand:SI 1 "register_operand" "r")
                   3312:                         (match_operand:SI 2 "int5_operand" "")
                   3313:                         (match_operand:SI 3 "int5_operand" "")))]
                   3314:   ""
                   3315:   "*
                   3316: {
                   3317:   operands[4] = gen_rtx (CONST_INT, SImode,
                   3318:                         (32 - INTVAL (operands[2])) - INTVAL (operands[3]));
                   3319:   return \"extu %0,%1,%2<%4>\";  /* <(32-%2-%3)> */
                   3320: }"
                   3321:   [(set_attr "type" "bit")])
                   3322: 
                   3323: (define_insn ""
                   3324:   [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "+r")
                   3325:                         (match_operand:SI 1 "int5_operand" "")
                   3326:                         (match_operand:SI 2 "int5_operand" ""))
                   3327:        (const_int 0))]
                   3328:   ""
                   3329:   "*
                   3330: {
                   3331:   operands[3] = gen_rtx (CONST_INT, SImode,
                   3332:                         (32 - INTVAL (operands[1])) - INTVAL (operands[2]));
                   3333:   return \"clr %0,%0,%1<%3>\";  /* <(32-%1-%2)> */
                   3334: }"
                   3335:   [(set_attr "type" "bit")])
                   3336: 
                   3337: (define_insn ""
                   3338:   [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "+r")
                   3339:                         (match_operand:SI 1 "int5_operand" "")
                   3340:                         (match_operand:SI 2 "int5_operand" ""))
                   3341:        (const_int -1))]
                   3342:   ""
                   3343:   "*
                   3344: {
                   3345:   operands[3] = gen_rtx (CONST_INT, SImode,
                   3346:                         (32 - INTVAL (operands[1])) - INTVAL (operands[2]));
                   3347:   return \"set %0,%0,%1<%3>\";  /* <(32-%1-%2)> */
                   3348: }"
                   3349:   [(set_attr "type" "bit")])
                   3350: 
                   3351: (define_insn ""
                   3352:   [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "+r")
                   3353:                         (match_operand:SI 1 "int5_operand" "")
                   3354:                         (match_operand:SI 2 "int5_operand" ""))
                   3355:        (match_operand:SI 3 "int32_operand" "n"))]
                   3356:   ""
                   3357:   "*
                   3358: {
                   3359:   int value = INTVAL (operands[3]);
                   3360: 
                   3361:   if (INTVAL (operands[1]) < 32)
                   3362:     value &= (1 << INTVAL (operands[1])) - 1;
                   3363: 
                   3364:   operands[2] = gen_rtx (CONST_INT, VOIDmode,
                   3365:                         32 - (INTVAL(operands[1]) + INTVAL(operands[2])));
                   3366: 
                   3367:   value <<= INTVAL (operands[2]);
                   3368:   operands[3] = gen_rtx (CONST_INT, VOIDmode, value);
                   3369: 
                   3370:   if (SMALL_INTVAL (value))
                   3371:     return \"clr %0,%0,%1<%2>\;or %0,%0,%3\";
                   3372:   else if ((value & 0x0000ffff) == 0)
                   3373:     return \"clr %0,%0,%1<%2>\;or.u %0,%0,%X3\";
                   3374:   else
                   3375:     return \"clr %0,%0,%1<%2>\;or.u %0,%0,%X3\;or %0,%0,%x3\";
                   3376: }"
                   3377:   [(set_attr "type" "marith")
                   3378:    (set_attr "length" "3")]) ; may be 2 or 3.
                   3379: 
                   3380: ;; negate insns
                   3381: (define_insn "negsi2"
                   3382:   [(set (match_operand:SI 0 "register_operand" "=r")
                   3383:        (neg:SI (match_operand:SI 1 "arith_operand" "rI")))]
                   3384:   ""
                   3385:   "subu %0,%#r0,%1")
                   3386: 
                   3387: (define_insn ""
                   3388:   [(set (match_operand:SF 0 "register_operand" "=r,x")
                   3389:        (float_truncate:SF (neg:DF (match_operand:DF 1 "register_operand" "r,x"))))]
                   3390:   ""
                   3391:   "@
                   3392:    fsub.ssd %0,%#r0,%1
                   3393:    fsub.ssd %0,%#x0,%1"
                   3394:   [(set_attr "type" "dpadd")])
                   3395: 
                   3396: (define_insn "negdf2"
                   3397:   [(set (match_operand:DF 0 "register_operand" "=&r,r")
                   3398:        (neg:DF (match_operand:DF 1 "register_operand" "r,0")))]
                   3399:   ""
                   3400:   "@
                   3401:    xor.u %0,%1,0x8000\;or %d0,%#r0,%d1
                   3402:    xor.u %0,%0,0x8000"
                   3403:   [(set_attr "type" "marith,arith")])
                   3404: 
                   3405: (define_insn "negsf2"
                   3406:   [(set (match_operand:SF 0 "register_operand" "=r")
                   3407:        (neg:SF (match_operand:SF 1 "register_operand" "r")))]
                   3408:   ""
                   3409:   "xor.u %0,%1,0x8000")
                   3410: 
                   3411: ;; absolute value insns for floating-point (integer abs can be done using the
                   3412: ;; machine-independent sequence).
                   3413: 
                   3414: (define_insn "absdf2"
                   3415:   [(set (match_operand:DF 0 "register_operand" "=&r,r")
                   3416:        (abs:DF (match_operand:DF 1 "register_operand" "r,0")))]
                   3417:   ""
                   3418:   "@
                   3419:    and.u %0,%1,0x7fff\;or %d0,%#r0,%d1
                   3420:    and.u %0,%0,0x7fff"
                   3421:   [(set_attr "type" "marith,arith")])
                   3422: 
                   3423: (define_insn "abssf2"
                   3424:   [(set (match_operand:SF 0 "register_operand" "=r")
                   3425:        (abs:SF (match_operand:SF 1 "register_operand" "r")))]
                   3426:   ""
                   3427:   "and.u %0,%1,0x7fff")
                   3428: 
                   3429: ;; Subroutines of "casesi".
                   3430: 
                   3431: ;; Operand 0 is index
                   3432: ;; operand 1 is the minimum bound
                   3433: ;; operand 2 is the maximum bound - minimum bound + 1
                   3434: ;; operand 3 is CODE_LABEL for the table;
                   3435: ;; operand 4 is the CODE_LABEL to go to if index out of range.
                   3436: 
                   3437: (define_expand "casesi"
                   3438:   ;; We don't use these for generating the RTL, but we must describe
                   3439:   ;; the operands here.
                   3440:   [(match_operand:SI 0 "general_operand" "")
                   3441:    (match_operand:SI 1 "immediate_operand" "")
                   3442:    (match_operand:SI 2 "immediate_operand" "")
                   3443:    (match_operand 3 "" "")
                   3444:    (match_operand 4 "" "")]
                   3445:   ""
                   3446:   "
                   3447: {
                   3448:   register rtx index_diff = gen_reg_rtx (SImode);
                   3449:   register rtx low = gen_rtx (CONST_INT, VOIDmode, -INTVAL (operands[1]));
                   3450:   register rtx label = gen_rtx (LABEL_REF, VOIDmode, operands[3]);
                   3451:   register rtx base;
                   3452: 
                   3453:   if (! CASE_VECTOR_INSNS)
                   3454:     /* These instructions are likely to be scheduled and made loop invariant.
                   3455:        This decreases the cost of the dispatch at the expense of the default
                   3456:        case.  */
                   3457:     base = force_reg (SImode, memory_address_noforce (SImode, label));
                   3458: 
                   3459:   /* Compute the index difference and handle the default case.  */
                   3460:   emit_insn (gen_addsi3 (index_diff,
                   3461:                         force_reg (SImode, operands[0]),
                   3462:                         ADD_INT (low) ? low : force_reg (SImode, low)));
                   3463:   emit_insn (gen_cmpsi (index_diff, operands[2]));
                   3464:   /* It's possible to replace this branch with sgtu/iorsi3 and adding a -1
                   3465:      entry to the table.  However, that doesn't seem to win on the m88110.  */
                   3466:   emit_jump_insn (gen_bgtu (operands[4]));
                   3467: 
                   3468:   if (CASE_VECTOR_INSNS)
                   3469:     /* Call the jump that will branch to the appropriate case.  */
                   3470:     emit_jump_insn (gen_casesi_enter (label, index_diff, operands[3]));
                   3471:   else
                   3472:     /* Load the table entry and jump to it.  */
                   3473:     emit_jump_insn (gen_casesi_jump (gen_reg_rtx (SImode), base, index_diff));
                   3474: 
                   3475:   /* Claim that flow drops into the table so it will be adjacent by not
                   3476:      emitting a barrier.  */
                   3477:   DONE;
                   3478: }")
                   3479: 
                   3480: (define_expand "casesi_jump"
                   3481:   [(set (match_operand:SI 0 "" "")
                   3482:        (mem:SI (plus:SI (match_operand:SI 1 "" "")
                   3483:                         (mult:SI (match_operand:SI 2 "" "")
                   3484:                                  (const_int 4)))))
                   3485:    (set (pc) (match_dup 0))]
                   3486:   ""
                   3487:   "")
                   3488: 
                   3489: ;; The bsr.n instruction is directed to the END of the table.  See
                   3490: ;; ASM_OUTPUT_CASE_END.
                   3491: 
                   3492: (define_insn "casesi_enter"
                   3493:   [(set (pc) (match_operand 0 "" ""))
                   3494:    (use (match_operand:SI 1 "register_operand" "r"))
                   3495:    ;; The USE here is so that at least one jump-insn will refer to the label,
                   3496:    ;; to keep it alive in jump_optimize.
                   3497:    (use (label_ref (match_operand 2 "" "")))
                   3498:    (clobber (reg:SI 1))]
                   3499:   ""
                   3500:   "*
                   3501: {
                   3502:   if (flag_delayed_branch)
                   3503:     return \"bsr.n %0e\;lda %#r1,%#r1[%1]\";
                   3504:   m88k_case_index = REGNO (operands[1]);
                   3505:   return \"bsr %0e\";
                   3506: }"
                   3507:   [(set_attr "type" "weird")
                   3508:    (set_attr "length" "3")]) ; Including the "jmp r1".
                   3509: 
                   3510: ;;- jump to subroutine
                   3511: (define_expand "call"
                   3512:   [(parallel [(call (match_operand:SI 0 "" "")
                   3513:                    (match_operand 1 "" ""))
                   3514:              (clobber (reg:SI 1))])]
                   3515:   ""
                   3516:   "
                   3517: {
                   3518:   if (GET_CODE (operands[0]) == MEM
                   3519:       && ! call_address_operand (XEXP (operands[0], 0), SImode))
                   3520:     operands[0] = gen_rtx (MEM, GET_MODE (operands[0]),
                   3521:                           force_reg (Pmode, XEXP (operands[0], 0)));
                   3522: }")
                   3523: 
                   3524: (define_insn ""
                   3525:   [(parallel [(call (mem:SI (match_operand:SI 0 "call_address_operand" "rQ"))
                   3526:                    (match_operand 1 "" ""))
                   3527:              (clobber (reg:SI 1))])]
                   3528:   ""
                   3529:   "* return output_call (operands, operands[0]);"
                   3530:   [(set_attr "type" "call")])
                   3531: 
                   3532: (define_expand "call_value"
                   3533:   [(parallel [(set (match_operand 0 "register_operand" "")
                   3534:                   (call (match_operand:SI 1 "" "")
                   3535:                         (match_operand 2 "" "")))
                   3536:              (clobber (reg:SI 1))])]
                   3537:   ""
                   3538:   "
                   3539: {
                   3540:   if (GET_CODE (operands[1]) == MEM
                   3541:       && ! call_address_operand (XEXP (operands[1], 0), SImode))
                   3542:     operands[1] = gen_rtx (MEM, GET_MODE (operands[1]),
                   3543:                           force_reg (Pmode, XEXP (operands[1], 0)));
                   3544: }")
                   3545: 
                   3546: (define_insn ""
                   3547:   [(parallel [(set (match_operand 0 "register_operand" "=r")
                   3548:                   (call (mem:SI
                   3549:                          (match_operand:SI 1 "call_address_operand" "rQ"))
                   3550:                         (match_operand 2 "" "")))
                   3551:              (clobber (reg:SI 1))])]
                   3552:   ""
                   3553:   "* return output_call (operands, operands[1]);"
                   3554:   [(set_attr "type" "call")])
                   3555: 
                   3556: ;; Nop instruction and others
                   3557: 
                   3558: (define_insn "nop"
                   3559:   [(const_int 0)]
                   3560:   ""
                   3561:   "ff0 %#r0,%#r0"
                   3562:   [(set_attr "type" "bit")])
                   3563: 
                   3564: (define_insn "return"
                   3565:   [(return)]
                   3566:   "reload_completed"
                   3567:   "jmp%. %#r1"
                   3568:   [(set_attr "type" "jump")])
                   3569: 
                   3570: (define_expand "prologue"
                   3571:   [(const_int 0)]
                   3572:   ""
                   3573:   "m88k_expand_prologue (); DONE;")
                   3574: 
                   3575: (define_expand "epilogue"
                   3576:   [(return)]
                   3577:   "! null_prologue ()"
                   3578:   "m88k_expand_epilogue ();")
                   3579: 
                   3580: (define_insn "blockage"
                   3581:   [(unspec_volatile [(const_int 0)] 0)]
                   3582:   ""
                   3583:   ""
                   3584:   [(set_attr "length" "0")])
                   3585: 
                   3586: (define_insn "indirect_jump"
                   3587:   [(set (pc) (match_operand:SI 0 "register_operand" "r"))]
                   3588:   ""
                   3589:   "jmp%. %0"
                   3590:   [(set_attr "type" "jump")])
                   3591: 
                   3592: (define_insn "jump"
                   3593:   [(set (pc)
                   3594:        (label_ref (match_operand 0 "" "")))]
                   3595:   ""
                   3596:   "br%. %l0"
                   3597:   [(set_attr "type" "jump")])
                   3598: 
                   3599: ;; This insn is used for some loop tests, typically loops reversed when
                   3600: ;; strength reduction is used.  It is actually created when the instruction
                   3601: ;; combination phase combines the special loop test.  Since this insn
                   3602: ;; is both a jump insn and has an output, it must deal with it's own
                   3603: ;; reloads, hence the `m' constraints.  The `!' constraints direct reload
                   3604: ;; to not choose the register alternatives in the event a reload is needed.
                   3605: 
                   3606: (define_insn "decrement_and_branch_until_zero"
                   3607:   [(set (pc)
                   3608:        (if_then_else
                   3609:         (match_operator 0 "relop_no_unsigned"
                   3610:                         [(match_operand:SI 1 "register_operand" "+!r,!r,m,m")
                   3611:                          (const_int 0)])
                   3612:          (label_ref (match_operand 2 "" ""))
                   3613:          (pc)))
                   3614:    (set (match_dup 1)
                   3615:        (plus:SI (match_dup 1)
                   3616:                 (match_operand:SI 3 "add_operand" "rI,J,rI,J")))
                   3617:    (clobber (match_scratch:SI 4 "=X,X,&r,&r"))
                   3618:    (clobber (match_scratch:SI 5 "=X,X,&r,&r"))]
                   3619:   "find_reg_note (insn, REG_NONNEG, 0)"
                   3620:   "@
                   3621:    bcnd.n %B0,%1,%2\;addu %1,%1,%3
                   3622:    bcnd.n %B0,%1,%2\;subu %1,%1,%n3
                   3623:    ld %4,%1\;addu %5,%4,%3\;bcnd.n %B0,%4,%2\;st %5,%1
                   3624:    ld %4,%1\;subu %5,%4,%n3\;bcnd.n %B0,%4,%2\;st %5,%1"
                   3625:   [(set_attr "type" "weird")
                   3626:    (set_attr "length" "2,2,4,4")])
                   3627: 
                   3628: ;; Special insn to serve as the last insn of a define_expand.  This insn
                   3629: ;; will generate no code.
                   3630: 
                   3631: (define_expand "dummy"
                   3632:   [(set (match_operand 0 "" "") (match_dup 0))]
                   3633:   ""
                   3634:   "")

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