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[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [config/] [m32c/] [mov.md] - Blame information for rev 282

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1 282 jeremybenn 
;; Machine Descriptions for R8C/M16C/M32C
2 
;; Copyright (C) 2005, 2007, 2008
3 
;; Free Software Foundation, Inc.
4 
;; Contributed by Red Hat.
5 
;;
6 
;; This file is part of GCC.
7 
;;
8 
;; GCC is free software; you can redistribute it and/or modify it
9 
;; under the terms of the GNU General Public License as published
10 
;; by the Free Software Foundation; either version 3, or (at your
11 
;; option) any later version.
12 
;;
13 
;; GCC is distributed in the hope that it will be useful, but WITHOUT
14 
;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 
;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
16 
;; License for more details.
17 
;;
18 
;; You should have received a copy of the GNU General Public License
19 
;; along with GCC; see the file COPYING3.  If not see
20 
;; .
21 
 
22 
;; move, push, extend, etc.
23 
 
24 
;; Be careful to never create an alternative that has memory as both
25 
;; src and dest, as that makes gcc think that mem-mem moves in general
26 
;; are supported.  While the chip does support this, it only has two
27 
;; address registers and sometimes gcc requires more than that.  One
28 
;; example is code like this: a = *b where both a and b are spilled to
29 
;; the stack.
30 
 
31 
;; Match push/pop before mov.b for passing char as arg,
32 
;; e.g. stdlib/efgcvt.c.
33 
(define_insn "movqi_op"
34 
  [(set (match_operand:QI 0 "m32c_nonimmediate_operand"
35 
                          "=Rqi*Rmm, <,          RqiSd*Rmm, SdSs,    Rqi*Rmm, Sd")
36 
        (match_operand:QI 1 "m32c_any_operand"
37 
                          "iRqi*Rmm, iRqiSd*Rmm, >,         Rqi*Rmm, SdSs,    i"))]
38 
  "m32c_mov_ok (operands, QImode)"
39 
  "@
40 
    mov.b\t%1,%0
41 
    push.b\t%1
42 
    pop.b\t%0
43 
    mov.b\t%1,%0
44 
    mov.b\t%1,%0
45 
    mov.b\t%1,%0"
46 
  [(set_attr "flags" "sz,*,*,sz,sz,sz")]
47 
  )
48 
 
49 
(define_expand "movqi"
50 
  [(set (match_operand:QI 0 "nonimmediate_operand" "=RqiSd*Rmm")
51 
        (match_operand:QI 1 "general_operand" "iRqiSd*Rmm"))]
52 
  ""
53 
  "if (m32c_prepare_move (operands, QImode)) DONE;"
54 
  )
55 
 
56 
 
57 
(define_insn "movhi_op"
58 
  [(set (match_operand:HI 0 "m32c_nonimmediate_operand"
59 
                          "=Rhi*Rmm,     Sd, SdSs,   *Rcr, RhiSd*Rmm, <, RhiSd*Rmm, <, *Rcr")
60 
        (match_operand:HI 1 "m32c_any_operand"
61 
                          "iRhi*RmmSdSs, i, Rhi*Rmm, RhiSd*Rmm, *Rcr, iRhiSd*Rmm, >, *Rcr, >"))]
62 
  "m32c_mov_ok (operands, HImode)"
63 
  "@
64 
   mov.w\t%1,%0
65 
   mov.w\t%1,%0
66 
   mov.w\t%1,%0
67 
   ldc\t%1,%0
68 
   stc\t%1,%0
69 
   push.w\t%1
70 
   pop.w\t%0
71 
   pushc\t%1
72 
   popc\t%0"
73 
  [(set_attr "flags" "sz,sz,sz,n,n,n,n,n,n")]
74 
  )
75 
 
76 
(define_expand "movhi"
77 
  [(set (match_operand:HI 0 "m32c_nonimmediate_operand" "=RhiSd*Rmm")
78 
        (match_operand:HI 1 "m32c_any_operand" "iRhiSd*Rmm"))]
79 
  ""
80 
  "if (m32c_prepare_move (operands, HImode)) DONE;"
81 
  )
82 
 
83 
 
84 
(define_insn "movpsi_op"
85 
  [(set (match_operand:PSI 0 "m32c_nonimmediate_operand"
86 
                           "=Raa, SdRmmRpi,  Rcl,  RpiSd*Rmm, <,       <, Rcl, RpiRaa*Rmm")
87 
        (match_operand:PSI 1 "m32c_any_operand"
88 
                           "sIU3, iSdRmmRpi, iRpiSd*Rmm, Rcl, Rpi*Rmm, Rcl, >, >"))]
89 
  "TARGET_A24 && m32c_mov_ok (operands, PSImode)"
90 
  "@
91 
   mov.l:s\t%1,%0
92 
   mov.l\t%1,%0
93 
   ldc\t%1,%0
94 
   stc\t%1,%0
95 
   push.l\t%1
96 
   pushc\t%1
97 
   popc\t%0
98 
   #"
99 
  [(set_attr "flags" "sz,sz,n,n,n,n,n,*")]
100 
  )
101 
 
102 
 
103 
;; The intention here is to combine the add with the move to create an
104 
;; indexed move.  GCC doesn't always figure this out itself.
105 
 
106 
(define_peephole2
107 
  [(set (match_operand:HPSI 0 "register_operand" "")
108 
        (plus:HPSI (match_operand:HPSI 1 "register_operand" "")
109 
                   (match_operand:HPSI 2 "immediate_operand" "")))
110 
   (set (match_operand:QHSI 3 "nonimmediate_operand" "")
111 
        (mem:QHSI (match_operand:HPSI 4 "register_operand" "")))]
112 
  "REGNO (operands[0]) == REGNO (operands[1])
113 
   && REGNO (operands[0]) == REGNO (operands[4])
114 
   && (rtx_equal_p (operands[0], operands[3])
115 
       || (dead_or_set_p (peep2_next_insn (1), operands[4])
116 
          && ! reg_mentioned_p (operands[0], operands[3])))"
117 
  [(set (match_dup 3)
118 
        (mem:QHSI (plus:HPSI (match_dup 1)
119 
                             (match_dup 2))))]
120 
  "")
121 
 
122 
(define_peephole2
123 
  [(set (match_operand:HPSI 0 "register_operand" "")
124 
        (plus:HPSI (match_operand:HPSI 1 "register_operand" "")
125 
                   (match_operand:HPSI 2 "immediate_operand" "")))
126 
   (set (mem:QHSI (match_operand:HPSI 4 "register_operand" ""))
127 
        (match_operand:QHSI 3 "m32c_any_operand" ""))]
128 
  "REGNO (operands[0]) == REGNO (operands[1])
129 
   && REGNO (operands[0]) == REGNO (operands[4])
130 
   && dead_or_set_p (peep2_next_insn (1), operands[4])
131 
   && ! reg_mentioned_p (operands[0], operands[3])"
132 
  [(set (mem:QHSI (plus:HPSI (match_dup 1)
133 
                             (match_dup 2)))
134 
        (match_dup 3))]
135 
  "")
136 
 
137 
; Peephole to generate SImode mov instructions for storing an
138 
; immediate double data to a memory location.
139 
(define_peephole2
140 
  [(set (match_operand:HI 0 "memory_operand" "")
141 
        (match_operand 1 "const_int_operand" ""))
142 
   (set (match_operand:HI 2 "memory_operand" "")
143 
        (match_operand 3 "const_int_operand" ""))]
144 
   "TARGET_A24 && m32c_immd_dbl_mov (operands, HImode)"
145 
   [(set (match_dup 4) (match_dup 5))]
146 
   ""
147 
)
148 
 
149 
; Some PSI moves must be split.
150 
(define_split
151 
  [(set (match_operand:PSI 0 "m32c_nonimmediate_operand" "")
152 
        (match_operand:PSI 1 "m32c_any_operand" ""))]
153 
  "reload_completed && m32c_split_psi_p (operands)"
154 
  [(set (match_dup 2)
155 
        (match_dup 3))
156 
   (set (match_dup 4)
157 
        (match_dup 5))]
158 
  "m32c_split_move (operands, PSImode, 3);"
159 
  )
160 
 
161 
(define_expand "movpsi"
162 
  [(set (match_operand:PSI 0 "m32c_nonimmediate_operand" "")
163 
        (match_operand:PSI 1 "m32c_any_operand" ""))]
164 
  ""
165 
  "if (m32c_prepare_move (operands, PSImode)) DONE;"
166 
  )
167 
 
168 
 
169 
 
170 
(define_expand "movsi"
171 
  [(set (match_operand:SI 0 "m32c_nonimmediate_operand" "=RsiSd*Rmm")
172 
        (match_operand:SI 1 "m32c_any_operand" "iRsiSd*Rmm"))]
173 
  ""
174 
  "if (m32c_split_move (operands, SImode, 0)) DONE;"
175 
  )
176 
 
177 
; All SI moves are split if TARGET_A16
178 
(define_insn_and_split "movsi_splittable"
179 
  [(set (match_operand:SI 0 "m32c_nonimmediate_operand" "=Rsi<*Rmm,RsiSd*Rmm,Ss")
180 
        (match_operand:SI 1 "m32c_any_operand" "iRsiSd*Rmm,iRsi>*Rmm,Rsi*Rmm"))]
181 
  "TARGET_A16"
182 
  "#"
183 
  "TARGET_A16 && reload_completed"
184 
  [(pc)]
185 
  "m32c_split_move (operands, SImode, 1); DONE;"
186 
  )
187 
 
188 
; The movsi pattern doesn't always match because sometimes the modes
189 
; don't match.
190 
(define_insn "push_a01_l"
191 
  [(set (mem:SI (pre_dec:PSI (reg:PSI SP_REGNO)))
192 
        (match_operand 0 "a_operand" "Raa"))]
193 
  ""
194 
  "push.l\t%0"
195 
  [(set_attr "flags" "n")]
196 
  )
197 
 
198 
(define_insn "movsi_24"
199 
  [(set (match_operand:SI 0 "m32c_nonimmediate_operand"  "=Rsi*Rmm,   Sd,       RsiSd*Rmm,     <")
200 
        (match_operand:SI 1 "m32c_any_operand" "iRsiSd*Rmm, iRsi*Rmm, >, iRsiRaaSd*Rmm"))]
201 
  "TARGET_A24"
202 
  "@
203 
   mov.l\t%1,%0
204 
   mov.l\t%1,%0
205 
   #
206 
   push.l\t%1"
207 
  [(set_attr "flags" "sz,sz,*,n")]
208 
  )
209 
 
210 
(define_expand "movdi"
211 
  [(set (match_operand:DI 0 "m32c_nonimmediate_operand" "=RdiSd*Rmm")
212 
        (match_operand:DI 1 "m32c_any_operand" "iRdiSd*Rmm"))]
213 
  ""
214 
  "if (m32c_split_move (operands, DImode, 0)) DONE;"
215 
  )
216 
 
217 
(define_insn_and_split "movdi_splittable"
218 
  [(set (match_operand:DI 0 "m32c_nonimmediate_operand" "=Rdi<*Rmm,RdiSd*Rmm")
219 
        (match_operand:DI 1 "m32c_any_operand" "iRdiSd*Rmm,iRdi>*Rmm"))]
220 
  ""
221 
  "#"
222 
  "reload_completed"
223 
  [(pc)]
224 
  "m32c_split_move (operands, DImode, 1); DONE;"
225 
  )
226 
 
227 
 
228 
 
229 
 
230 
(define_insn "pushqi"
231 
  [(set (mem:QI (pre_dec:PSI (reg:PSI SP_REGNO)))
232 
        (match_operand:QI 0 "mrai_operand" "iRqiSd*Rmm"))]
233 
  ""
234 
  "push.b\t%0"
235 
  [(set_attr "flags" "n")]
236 
  )
237 
 
238 
(define_expand "pushhi"
239 
  [(set (mem:HI (pre_dec:PSI (reg:PSI SP_REGNO)))
240 
        (match_operand:HI 0 "" ""))]
241 
  ""
242 
  "if (TARGET_A16)
243 
     gen_pushhi_16 (operands[0]);
244 
   else
245 
     gen_pushhi_24 (operands[0]);
246 
   DONE;"
247 
  )
248 
 
249 
(define_insn "pushhi_16"
250 
  [(set (mem:HI (pre_dec:HI (reg:HI SP_REGNO)))
251 
        (match_operand:HI 0 "mrai_operand" "iRhiSd*Rmm,Rcr"))]
252 
  "TARGET_A16"
253 
  "@
254 
   push.w\t%0
255 
   pushc\t%0"
256 
  [(set_attr "flags" "n,n")]
257 
  )
258 
 
259 
(define_insn "pushhi_24"
260 
  [(set (mem:HI (pre_dec:PSI (reg:PSI SP_REGNO)))
261 
        (match_operand:HI 0 "mrai_operand" "iRhiSd*Rmm"))]
262 
  "TARGET_A24"
263 
  "push.w\t%0"
264 
  [(set_attr "flags" "n")]
265 
  )
266 
 
267 
;(define_insn "pushpi"
268 
;  [(set (mem:PSI (pre_dec:PSI (reg:PSI SP_REGNO)))
269 
;        (match_operand:PI 0 "mrai_operand" "iRaa,Rcr"))]
270 
;  "TARGET_A24"
271 
;  "@
272 
;   push.l\t%0
273 
;   pushc\t%0"
274 
;  )
275 
 
276 
(define_insn "pushsi"
277 
  [(set (mem:SI (pre_dec:PSI (reg:PSI SP_REGNO)))
278 
        (match_operand:SI 0 "mrai_operand" "iRsiSd*Rmm"))]
279 
  "TARGET_A24"
280 
  "push.l\t%0"
281 
  [(set_attr "flags" "n")]
282 
  )
283 
 
284 
(define_expand "pophi"
285 
  [(set (match_operand:HI 0 "mra_operand" "=RhiSd*Rmm,Rcr")
286 
        (mem:HI (post_inc:HI (reg:HI SP_REGNO))))]
287 
  ""
288 
  "if (TARGET_A16)
289 
     gen_pophi_16 (operands[0]);
290 
   else
291 
     gen_pophi_24 (operands[0]);
292 
   DONE;"
293 
  )
294 
 
295 
(define_insn "pophi_16"
296 
  [(set (match_operand:HI 0 "mra_operand" "=RhiSd*Rmm,Rcr")
297 
        (mem:HI (post_inc:HI (reg:HI SP_REGNO))))]
298 
  "TARGET_A16"
299 
  "@
300 
   pop.w\t%0
301 
   popc\t%0"
302 
  [(set_attr "flags" "n,n")]
303 
  )
304 
 
305 
(define_insn "pophi_24"
306 
  [(set (match_operand:HI 0 "mra_operand" "=RhiSd*Rmm")
307 
        (mem:HI (post_inc:PSI (reg:PSI SP_REGNO))))]
308 
  "TARGET_A24"
309 
  "pop.w\t%0"
310 
  [(set_attr "flags" "n")]
311 
  )
312 
 
313 
(define_insn "poppsi"
314 
  [(set (match_operand:PSI 0 "cr_operand" "=Rcl")
315 
        (mem:PSI (post_inc:PSI (reg:PSI SP_REGNO))))]
316 
  "TARGET_A24"
317 
  "popc\t%0"
318 
  [(set_attr "flags" "n")]
319 
  )
320 
 
321 
 
322 
;; Rhl used here as an HI-mode Rxl
323 
(define_insn "extendqihi2"
324 
[(set (match_operand:HI 0 "m32c_nonimmediate_operand" "=RhlSd*Rmm")
325 
        (sign_extend:HI (match_operand:QI 1 "mra_operand" "0")))]
326 
  ""
327 
  "exts.b\t%1"
328 
  [(set_attr "flags" "sz")]
329 
  )
330 
 
331 
(define_insn "extendhisi2"
332 
  [(set (match_operand:SI 0 "register_operand" "=R03")
333 
        (sign_extend:SI (match_operand:HI 1 "r0123_operand" "0")))]
334 
  ""
335 
  "*
336 
   if (REGNO(operands[0]) == 0) return \"exts.w\t%1\";
337 
   else return \"mov.w r1,r3 | sha.w #-8,r3 | sha.w #-7,r3\";"
338 
  [(set_attr "flags" "x")]
339 
  )
340 
 
341 
(define_insn "extendhipsi2"
342 
  [(set (match_operand:PSI 0 "register_operand" "=R03")
343 
        (sign_extend:PSI (match_operand:HI 1 "register_operand" "0")))]
344 
  ""
345 
  "*
346 
   if (REGNO(operands[0]) == 0) return \"exts.w\t%1\";
347 
   else return \"mov.w r1,r3 | sha.w #-8,r3 | sha.w #-7,r3\";"
348 
  [(set_attr "flags" "x")]
349 
  )
350 
 
351 
(define_insn "extendpsisi2"
352 
  [(set (match_operand:SI 0 "mr_operand" "=R03Sd*Rmm")
353 
        (sign_extend:SI (match_operand:PSI 1 "mr_operand" "0")))]
354 
  ""
355 
  "; expand psi %1 to si %0"
356 
  [(set_attr "flags" "n")]
357 
  )
358 
 
359 
(define_insn "zero_extendpsisi2"
360 
  [(set (match_operand:SI 0 "mr_operand" "=R03Sd*Rmm")
361 
        (zero_extend:SI (match_operand:PSI 1 "mr_operand" "0")))]
362 
  ""
363 
  "; expand psi %1 to si %0"
364 
  [(set_attr "flags" "n")]
365 
  )
366 
 
367 
(define_insn "zero_extendhipsi2"
368 
  [(set (match_operand:PSI 0 "register_operand" "=Raa")
369 
        (truncate:PSI (zero_extend:SI (match_operand:HI 1 "register_operand" "R03"))))]
370 
  ""
371 
  "mov.w\t%1,%0"
372 
  [(set_attr "flags" "sz")]
373 
  )
374 
 
375 
(define_insn "zero_extendhisi2"
376 
  [(set (match_operand:SI 0 "m32c_nonimmediate_operand" "=RsiSd")
377 
        (zero_extend:SI (match_operand:HI 1 "nonimmediate_operand" "0")))]
378 
  ""
379 
  "mov.w\t#0,%H0"
380 
  [(set_attr "flags" "x")]
381 
  )
382 
 
383 
(define_insn "zero_extendqihi2"
384 
  [(set (match_operand:HI 0 "m32c_nonimmediate_operand" "=?Rhl,RhiSd*Rmm")
385 
        (zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "0,0")))]
386 
  ""
387 
  "@
388 
   mov.b\t#0,%H0
389 
   and.w\t#255,%0"
390 
  [(set_attr "flags" "x,x")]
391 
  )
392 
 
393 
(define_insn "truncsipsi2_16"
394 
  [(set (match_operand:PSI 0 "m32c_nonimmediate_operand" "=RsiRadSd*Rmm,Raa,Rcr,RsiSd*Rmm")
395 
        (truncate:PSI (match_operand:SI 1 "nonimmediate_operand" "0,RsiSd*Rmm,RsiSd*Rmm,Rcr")))]
396 
  "TARGET_A16"
397 
  "@
398 
   ; no-op trunc si %1 to psi %0
399 
   #
400 
   ldc\t%1,%0
401 
   stc\t%1,%0"
402 
  [(set_attr "flags" "n,*,n,n")]
403 
  )
404 
 
405 
(define_insn "trunchiqi2"
406 
  [(set (match_operand:QI 0 "m32c_nonimmediate_operand" "=RqiRmmSd")
407 
        (truncate:QI (match_operand:HI 1 "mra_qi_operand" "0")))]
408 
  ""
409 
  "; no-op trunc hi %1 to qi %0"
410 
  [(set_attr "flags" "n")]
411 
  )
412 
 
413 
(define_insn "truncsipsi2_24"
414 
  [(set (match_operand:PSI 0              "m32c_nonimmediate_operand" "=RsiSd*Rmm,Raa,!Rcl,RsiSd*Rmm")
415 
        (truncate:PSI (match_operand:SI 1 "m32c_nonimmediate_operand" "0,RsiSd*Rmm,RsiSd*Rmm,!Rcl")))]
416 
  "TARGET_A24"
417 
  "@
418 
   ; no-op trunc si %1 to psi %0
419 
   mov.l\t%1,%0
420 
   ldc\t%1,%0
421 
   stc\t%1,%0"
422 
  [(set_attr "flags" "n,sz,n,n")]
423 
  )
424 
 
425 
(define_expand "truncsipsi2"
426 
  [(set (match_operand:PSI 0 "m32c_nonimmediate_operand" "=RsiRadSd*Rmm,Raa,Rcr,RsiSd*Rmm")
427 
        (truncate:PSI (match_operand:SI 1 "m32c_nonimmediate_operand" "0,RsiSd*Rmm,RsiSd*Rmm,Rcr")))]
428 
  ""
429 
  ""
430 
  )
431 
 
432 
(define_expand "reload_inqi"
433 
  [(set (match_operand:QI 2 "" "=&Rqi")
434 
        (match_operand:QI 1 "" ""))
435 
   (set (match_operand:QI 0 "" "")
436 
        (match_dup 2))
437 
   ]
438 
  ""
439 
  "")
440 
 
441 
(define_expand "reload_outqi"
442 
  [(set (match_operand:QI 2 "" "=&Rqi")
443 
        (match_operand:QI 1 "" ""))
444 
   (set (match_operand:QI 0 "" "")
445 
        (match_dup 2))
446 
   ]
447 
  ""
448 
  "")
449 
 
450 
(define_expand "reload_inhi"
451 
  [(set (match_operand:HI 2 "" "=&Rhi")
452 
        (match_operand:HI 1 "" ""))
453 
   (set (match_operand:HI 0 "" "")
454 
        (match_dup 2))
455 
   ]
456 
  ""
457 
  "")
458 
 
459 
(define_expand "reload_outhi"
460 
  [(set (match_operand:HI 2 "" "=&Rhi")
461 
        (match_operand:HI 1 "" ""))
462 
   (set (match_operand:HI 0 "" "")
463 
        (match_dup 2))
464 
   ]
465 
  ""
466 
  "")

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