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1 38 julius 
;; GCC machine description for Tensilica's Xtensa architecture.
2 
;; Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007
3 
;  Free Software Foundation, Inc.
4 
;; Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
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 by
10 
;; the Free Software Foundation; either version 3, or (at your option)
11 
;; 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 
 
23 
(define_constants [
24 
  (A0_REG               0)
25 
  (A1_REG               1)
26 
  (A7_REG               7)
27 
  (A8_REG               8)
28 
 
29 
  (UNSPEC_NSAU          1)
30 
  (UNSPEC_NOP           2)
31 
  (UNSPEC_PLT           3)
32 
  (UNSPEC_RET_ADDR      4)
33 
  (UNSPECV_SET_FP       1)
34 
  (UNSPECV_ENTRY        2)
35 
])
36 
 
37 
 
38 
;; Attributes.
39 
 
40 
(define_attr "type"
41 
  "unknown,jump,call,load,store,move,arith,multi,nop,farith,fmadd,fdiv,fsqrt,fconv,fload,fstore,mul16,mul32,div32,mac16,rsr,wsr"
42 
  (const_string "unknown"))
43 
 
44 
(define_attr "mode"
45 
  "unknown,none,QI,HI,SI,DI,SF,DF,BL"
46 
  (const_string "unknown"))
47 
 
48 
(define_attr "length" "" (const_int 1))
49 
 
50 
;; Describe a user's asm statement.
51 
(define_asm_attributes
52 
  [(set_attr "type" "multi")])
53 
 
54 
 
55 
;; Pipeline model.
56 
 
57 
;; The Xtensa basically has simple 5-stage RISC pipeline.
58 
;; Most instructions complete in 1 cycle, and it is OK to assume that
59 
;; everything is fully pipelined.  The exceptions have special insn
60 
;; reservations in the pipeline description below.  The Xtensa can
61 
;; issue one instruction per cycle, so defining CPU units is unnecessary.
62 
 
63 
(define_insn_reservation "xtensa_any_insn" 1
64 
                         (eq_attr "type" "!load,fload,rsr,mul16,mul32,fmadd,fconv")
65 
                         "nothing")
66 
 
67 
(define_insn_reservation "xtensa_memory" 2
68 
                         (eq_attr "type" "load,fload")
69 
                         "nothing")
70 
 
71 
(define_insn_reservation "xtensa_sreg" 2
72 
                         (eq_attr "type" "rsr")
73 
                         "nothing")
74 
 
75 
(define_insn_reservation "xtensa_mul16" 2
76 
                         (eq_attr "type" "mul16")
77 
                         "nothing")
78 
 
79 
(define_insn_reservation "xtensa_mul32" 2
80 
                         (eq_attr "type" "mul32")
81 
                         "nothing")
82 
 
83 
(define_insn_reservation "xtensa_fmadd" 4
84 
                         (eq_attr "type" "fmadd")
85 
                         "nothing")
86 
 
87 
(define_insn_reservation "xtensa_fconv" 2
88 
                         (eq_attr "type" "fconv")
89 
                         "nothing")
90 
 
91 
;; Include predicate definitions
92 
 
93 
(include "predicates.md")
94 
 
95 
 
96 
;; Addition.
97 
 
98 
(define_insn "addsi3"
99 
  [(set (match_operand:SI 0 "register_operand" "=D,D,a,a,a")
100 
        (plus:SI (match_operand:SI 1 "register_operand" "%d,d,r,r,r")
101 
                 (match_operand:SI 2 "add_operand" "d,O,r,J,N")))]
102 
  ""
103 
  "@
104 
   add.n\t%0, %1, %2
105 
   addi.n\t%0, %1, %d2
106 
   add\t%0, %1, %2
107 
   addi\t%0, %1, %d2
108 
   addmi\t%0, %1, %x2"
109 
  [(set_attr "type"     "arith,arith,arith,arith,arith")
110 
   (set_attr "mode"     "SI")
111 
   (set_attr "length"   "2,2,3,3,3")])
112 
 
113 
(define_insn "*addx2"
114 
  [(set (match_operand:SI 0 "register_operand" "=a")
115 
        (plus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")
116 
                          (const_int 2))
117 
                 (match_operand:SI 2 "register_operand" "r")))]
118 
  "TARGET_ADDX"
119 
  "addx2\t%0, %1, %2"
120 
  [(set_attr "type"     "arith")
121 
   (set_attr "mode"     "SI")
122 
   (set_attr "length"   "3")])
123 
 
124 
(define_insn "*addx4"
125 
  [(set (match_operand:SI 0 "register_operand" "=a")
126 
        (plus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")
127 
                          (const_int 4))
128 
                 (match_operand:SI 2 "register_operand" "r")))]
129 
  "TARGET_ADDX"
130 
  "addx4\t%0, %1, %2"
131 
  [(set_attr "type"     "arith")
132 
   (set_attr "mode"     "SI")
133 
   (set_attr "length"   "3")])
134 
 
135 
(define_insn "*addx8"
136 
  [(set (match_operand:SI 0 "register_operand" "=a")
137 
        (plus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")
138 
                          (const_int 8))
139 
                 (match_operand:SI 2 "register_operand" "r")))]
140 
  "TARGET_ADDX"
141 
  "addx8\t%0, %1, %2"
142 
  [(set_attr "type"     "arith")
143 
   (set_attr "mode"     "SI")
144 
   (set_attr "length"   "3")])
145 
 
146 
(define_insn "addsf3"
147 
  [(set (match_operand:SF 0 "register_operand" "=f")
148 
        (plus:SF (match_operand:SF 1 "register_operand" "%f")
149 
                 (match_operand:SF 2 "register_operand" "f")))]
150 
  "TARGET_HARD_FLOAT"
151 
  "add.s\t%0, %1, %2"
152 
  [(set_attr "type"     "fmadd")
153 
   (set_attr "mode"     "SF")
154 
   (set_attr "length"   "3")])
155 
 
156 
 
157 
;; Subtraction.
158 
 
159 
(define_insn "subsi3"
160 
  [(set (match_operand:SI 0 "register_operand" "=a")
161 
        (minus:SI (match_operand:SI 1 "register_operand" "r")
162 
                  (match_operand:SI 2 "register_operand" "r")))]
163 
  ""
164 
  "sub\t%0, %1, %2"
165 
  [(set_attr "type"     "arith")
166 
   (set_attr "mode"     "SI")
167 
   (set_attr "length"   "3")])
168 
 
169 
(define_insn "*subx2"
170 
  [(set (match_operand:SI 0 "register_operand" "=a")
171 
        (minus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")
172 
                           (const_int 2))
173 
                  (match_operand:SI 2 "register_operand" "r")))]
174 
  "TARGET_ADDX"
175 
  "subx2\t%0, %1, %2"
176 
  [(set_attr "type"     "arith")
177 
   (set_attr "mode"     "SI")
178 
   (set_attr "length"   "3")])
179 
 
180 
(define_insn "*subx4"
181 
  [(set (match_operand:SI 0 "register_operand" "=a")
182 
        (minus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")
183 
                           (const_int 4))
184 
                  (match_operand:SI 2 "register_operand" "r")))]
185 
  "TARGET_ADDX"
186 
  "subx4\t%0, %1, %2"
187 
  [(set_attr "type"     "arith")
188 
   (set_attr "mode"     "SI")
189 
   (set_attr "length"   "3")])
190 
 
191 
(define_insn "*subx8"
192 
  [(set (match_operand:SI 0 "register_operand" "=a")
193 
        (minus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")
194 
                           (const_int 8))
195 
                  (match_operand:SI 2 "register_operand" "r")))]
196 
  "TARGET_ADDX"
197 
  "subx8\t%0, %1, %2"
198 
  [(set_attr "type"     "arith")
199 
   (set_attr "mode"     "SI")
200 
   (set_attr "length"   "3")])
201 
 
202 
(define_insn "subsf3"
203 
  [(set (match_operand:SF 0 "register_operand" "=f")
204 
        (minus:SF (match_operand:SF 1 "register_operand" "f")
205 
                  (match_operand:SF 2 "register_operand" "f")))]
206 
  "TARGET_HARD_FLOAT"
207 
  "sub.s\t%0, %1, %2"
208 
  [(set_attr "type"     "fmadd")
209 
   (set_attr "mode"     "SF")
210 
   (set_attr "length"   "3")])
211 
 
212 
 
213 
;; Multiplication.
214 
 
215 
(define_insn "mulsi3"
216 
  [(set (match_operand:SI 0 "register_operand" "=a")
217 
        (mult:SI (match_operand:SI 1 "register_operand" "%r")
218 
                 (match_operand:SI 2 "register_operand" "r")))]
219 
  "TARGET_MUL32"
220 
  "mull\t%0, %1, %2"
221 
  [(set_attr "type"     "mul32")
222 
   (set_attr "mode"     "SI")
223 
   (set_attr "length"   "3")])
224 
 
225 
(define_insn "mulhisi3"
226 
  [(set (match_operand:SI 0 "register_operand" "=C,A")
227 
        (mult:SI (sign_extend:SI
228 
                  (match_operand:HI 1 "register_operand" "%r,r"))
229 
                 (sign_extend:SI
230 
                  (match_operand:HI 2 "register_operand" "r,r"))))]
231 
  "TARGET_MUL16 || TARGET_MAC16"
232 
  "@
233 
   mul16s\t%0, %1, %2
234 
   mul.aa.ll\t%1, %2"
235 
  [(set_attr "type"     "mul16,mac16")
236 
   (set_attr "mode"     "SI")
237 
   (set_attr "length"   "3,3")])
238 
 
239 
(define_insn "umulhisi3"
240 
  [(set (match_operand:SI 0 "register_operand" "=C,A")
241 
        (mult:SI (zero_extend:SI
242 
                  (match_operand:HI 1 "register_operand" "%r,r"))
243 
                 (zero_extend:SI
244 
                  (match_operand:HI 2 "register_operand" "r,r"))))]
245 
  "TARGET_MUL16 || TARGET_MAC16"
246 
  "@
247 
   mul16u\t%0, %1, %2
248 
   umul.aa.ll\t%1, %2"
249 
  [(set_attr "type"     "mul16,mac16")
250 
   (set_attr "mode"     "SI")
251 
   (set_attr "length"   "3,3")])
252 
 
253 
(define_insn "muladdhisi"
254 
  [(set (match_operand:SI 0 "register_operand" "=A")
255 
        (plus:SI (mult:SI (sign_extend:SI
256 
                           (match_operand:HI 1 "register_operand" "%r"))
257 
                          (sign_extend:SI
258 
                           (match_operand:HI 2 "register_operand" "r")))
259 
                 (match_operand:SI 3 "register_operand" "0")))]
260 
  "TARGET_MAC16"
261 
  "mula.aa.ll\t%1, %2"
262 
  [(set_attr "type"     "mac16")
263 
   (set_attr "mode"     "SI")
264 
   (set_attr "length"   "3")])
265 
 
266 
(define_insn "mulsubhisi"
267 
  [(set (match_operand:SI 0 "register_operand" "=A")
268 
        (minus:SI (match_operand:SI 1 "register_operand" "0")
269 
                  (mult:SI (sign_extend:SI
270 
                            (match_operand:HI 2 "register_operand" "%r"))
271 
                           (sign_extend:SI
272 
                            (match_operand:HI 3 "register_operand" "r")))))]
273 
  "TARGET_MAC16"
274 
  "muls.aa.ll\t%2, %3"
275 
  [(set_attr "type"     "mac16")
276 
   (set_attr "mode"     "SI")
277 
   (set_attr "length"   "3")])
278 
 
279 
(define_insn "mulsf3"
280 
  [(set (match_operand:SF 0 "register_operand" "=f")
281 
        (mult:SF (match_operand:SF 1 "register_operand" "%f")
282 
                 (match_operand:SF 2 "register_operand" "f")))]
283 
  "TARGET_HARD_FLOAT"
284 
  "mul.s\t%0, %1, %2"
285 
  [(set_attr "type"     "fmadd")
286 
   (set_attr "mode"     "SF")
287 
   (set_attr "length"   "3")])
288 
 
289 
(define_insn "muladdsf3"
290 
  [(set (match_operand:SF 0 "register_operand" "=f")
291 
        (plus:SF (mult:SF (match_operand:SF 1 "register_operand" "%f")
292 
                          (match_operand:SF 2 "register_operand" "f"))
293 
                 (match_operand:SF 3 "register_operand" "0")))]
294 
  "TARGET_HARD_FLOAT && TARGET_FUSED_MADD"
295 
  "madd.s\t%0, %1, %2"
296 
  [(set_attr "type"     "fmadd")
297 
   (set_attr "mode"     "SF")
298 
   (set_attr "length"   "3")])
299 
 
300 
(define_insn "mulsubsf3"
301 
  [(set (match_operand:SF 0 "register_operand" "=f")
302 
        (minus:SF (match_operand:SF 1 "register_operand" "0")
303 
                  (mult:SF (match_operand:SF 2 "register_operand" "%f")
304 
                           (match_operand:SF 3 "register_operand" "f"))))]
305 
  "TARGET_HARD_FLOAT && TARGET_FUSED_MADD"
306 
  "msub.s\t%0, %2, %3"
307 
  [(set_attr "type"     "fmadd")
308 
   (set_attr "mode"     "SF")
309 
   (set_attr "length"   "3")])
310 
 
311 
 
312 
;; Division.
313 
 
314 
(define_insn "divsi3"
315 
  [(set (match_operand:SI 0 "register_operand" "=a")
316 
        (div:SI (match_operand:SI 1 "register_operand" "r")
317 
                (match_operand:SI 2 "register_operand" "r")))]
318 
  "TARGET_DIV32"
319 
  "quos\t%0, %1, %2"
320 
  [(set_attr "type"     "div32")
321 
   (set_attr "mode"     "SI")
322 
   (set_attr "length"   "3")])
323 
 
324 
(define_insn "udivsi3"
325 
  [(set (match_operand:SI 0 "register_operand" "=a")
326 
        (udiv:SI (match_operand:SI 1 "register_operand" "r")
327 
                 (match_operand:SI 2 "register_operand" "r")))]
328 
  "TARGET_DIV32"
329 
  "quou\t%0, %1, %2"
330 
  [(set_attr "type"     "div32")
331 
   (set_attr "mode"     "SI")
332 
   (set_attr "length"   "3")])
333 
 
334 
(define_insn "divsf3"
335 
  [(set (match_operand:SF 0 "register_operand" "=f")
336 
        (div:SF (match_operand:SF 1 "register_operand" "f")
337 
                (match_operand:SF 2 "register_operand" "f")))]
338 
  "TARGET_HARD_FLOAT_DIV"
339 
  "div.s\t%0, %1, %2"
340 
  [(set_attr "type"     "fdiv")
341 
   (set_attr "mode"     "SF")
342 
   (set_attr "length"   "3")])
343 
 
344 
(define_insn "*recipsf2"
345 
  [(set (match_operand:SF 0 "register_operand" "=f")
346 
        (div:SF (match_operand:SF 1 "const_float_1_operand" "")
347 
                (match_operand:SF 2 "register_operand" "f")))]
348 
  "TARGET_HARD_FLOAT_RECIP && flag_unsafe_math_optimizations"
349 
  "recip.s\t%0, %2"
350 
  [(set_attr "type"     "fdiv")
351 
   (set_attr "mode"     "SF")
352 
   (set_attr "length"   "3")])
353 
 
354 
 
355 
;; Remainders.
356 
 
357 
(define_insn "modsi3"
358 
  [(set (match_operand:SI 0 "register_operand" "=a")
359 
        (mod:SI (match_operand:SI 1 "register_operand" "r")
360 
                (match_operand:SI 2 "register_operand" "r")))]
361 
  "TARGET_DIV32"
362 
  "rems\t%0, %1, %2"
363 
  [(set_attr "type"     "div32")
364 
   (set_attr "mode"     "SI")
365 
   (set_attr "length"   "3")])
366 
 
367 
(define_insn "umodsi3"
368 
  [(set (match_operand:SI 0 "register_operand" "=a")
369 
        (umod:SI (match_operand:SI 1 "register_operand" "r")
370 
                 (match_operand:SI 2 "register_operand" "r")))]
371 
  "TARGET_DIV32"
372 
  "remu\t%0, %1, %2"
373 
  [(set_attr "type"     "div32")
374 
   (set_attr "mode"     "SI")
375 
   (set_attr "length"   "3")])
376 
 
377 
 
378 
;; Square roots.
379 
 
380 
(define_insn "sqrtsf2"
381 
  [(set (match_operand:SF 0 "register_operand" "=f")
382 
        (sqrt:SF (match_operand:SF 1 "register_operand" "f")))]
383 
  "TARGET_HARD_FLOAT_SQRT"
384 
  "sqrt.s\t%0, %1"
385 
  [(set_attr "type"     "fsqrt")
386 
   (set_attr "mode"     "SF")
387 
   (set_attr "length"   "3")])
388 
 
389 
(define_insn "*rsqrtsf2"
390 
  [(set (match_operand:SF 0 "register_operand" "=f")
391 
        (div:SF (match_operand:SF 1 "const_float_1_operand" "")
392 
                (sqrt:SF (match_operand:SF 2 "register_operand" "f"))))]
393 
  "TARGET_HARD_FLOAT_RSQRT && flag_unsafe_math_optimizations"
394 
  "rsqrt.s\t%0, %2"
395 
  [(set_attr "type"     "fsqrt")
396 
   (set_attr "mode"     "SF")
397 
   (set_attr "length"   "3")])
398 
 
399 
 
400 
;; Absolute value.
401 
 
402 
(define_insn "abssi2"
403 
  [(set (match_operand:SI 0 "register_operand" "=a")
404 
        (abs:SI (match_operand:SI 1 "register_operand" "r")))]
405 
  "TARGET_ABS"
406 
  "abs\t%0, %1"
407 
  [(set_attr "type"     "arith")
408 
   (set_attr "mode"     "SI")
409 
   (set_attr "length"   "3")])
410 
 
411 
(define_insn "abssf2"
412 
  [(set (match_operand:SF 0 "register_operand" "=f")
413 
        (abs:SF (match_operand:SF 1 "register_operand" "f")))]
414 
  "TARGET_HARD_FLOAT"
415 
  "abs.s\t%0, %1"
416 
  [(set_attr "type"     "farith")
417 
   (set_attr "mode"     "SF")
418 
   (set_attr "length"   "3")])
419 
 
420 
 
421 
;; Min and max.
422 
 
423 
(define_insn "sminsi3"
424 
  [(set (match_operand:SI 0 "register_operand" "=a")
425 
        (smin:SI (match_operand:SI 1 "register_operand" "%r")
426 
                 (match_operand:SI 2 "register_operand" "r")))]
427 
  "TARGET_MINMAX"
428 
  "min\t%0, %1, %2"
429 
  [(set_attr "type"     "arith")
430 
   (set_attr "mode"     "SI")
431 
   (set_attr "length"   "3")])
432 
 
433 
(define_insn "uminsi3"
434 
  [(set (match_operand:SI 0 "register_operand" "=a")
435 
        (umin:SI (match_operand:SI 1 "register_operand" "%r")
436 
                 (match_operand:SI 2 "register_operand" "r")))]
437 
  "TARGET_MINMAX"
438 
  "minu\t%0, %1, %2"
439 
  [(set_attr "type"     "arith")
440 
   (set_attr "mode"     "SI")
441 
   (set_attr "length"   "3")])
442 
 
443 
(define_insn "smaxsi3"
444 
  [(set (match_operand:SI 0 "register_operand" "=a")
445 
        (smax:SI (match_operand:SI 1 "register_operand" "%r")
446 
                 (match_operand:SI 2 "register_operand" "r")))]
447 
  "TARGET_MINMAX"
448 
  "max\t%0, %1, %2"
449 
  [(set_attr "type"     "arith")
450 
   (set_attr "mode"     "SI")
451 
   (set_attr "length"   "3")])
452 
 
453 
(define_insn "umaxsi3"
454 
  [(set (match_operand:SI 0 "register_operand" "=a")
455 
        (umax:SI (match_operand:SI 1 "register_operand" "%r")
456 
                 (match_operand:SI 2 "register_operand" "r")))]
457 
  "TARGET_MINMAX"
458 
  "maxu\t%0, %1, %2"
459 
  [(set_attr "type"     "arith")
460 
   (set_attr "mode"     "SI")
461 
   (set_attr "length"   "3")])
462 
 
463 
 
464 
;; Find first bit.
465 
 
466 
(define_expand "ffssi2"
467 
  [(set (match_operand:SI 0 "register_operand" "")
468 
        (ffs:SI (match_operand:SI 1 "register_operand" "")))]
469 
  "TARGET_NSA"
470 
{
471 
  rtx temp = gen_reg_rtx (SImode);
472 
  emit_insn (gen_negsi2 (temp, operands[1]));
473 
  emit_insn (gen_andsi3 (temp, temp, operands[1]));
474 
  emit_insn (gen_nsau (temp, temp));
475 
  emit_insn (gen_negsi2 (temp, temp));
476 
  emit_insn (gen_addsi3 (operands[0], temp, GEN_INT (32)));
477 
  DONE;
478 
})
479 
 
480 
;; There is no RTL operator corresponding to NSAU.
481 
(define_insn "nsau"
482 
  [(set (match_operand:SI 0 "register_operand" "=a")
483 
        (unspec:SI [(match_operand:SI 1 "register_operand" "r")] UNSPEC_NSAU))]
484 
  "TARGET_NSA"
485 
  "nsau\t%0, %1"
486 
  [(set_attr "type"     "arith")
487 
   (set_attr "mode"     "SI")
488 
   (set_attr "length"   "3")])
489 
 
490 
 
491 
;; Negation and one's complement.
492 
 
493 
(define_insn "negsi2"
494 
  [(set (match_operand:SI 0 "register_operand" "=a")
495 
        (neg:SI (match_operand:SI 1 "register_operand" "r")))]
496 
  ""
497 
  "neg\t%0, %1"
498 
  [(set_attr "type"     "arith")
499 
   (set_attr "mode"     "SI")
500 
   (set_attr "length"   "3")])
501 
 
502 
(define_expand "one_cmplsi2"
503 
  [(set (match_operand:SI 0 "register_operand" "")
504 
        (not:SI (match_operand:SI 1 "register_operand" "")))]
505 
  ""
506 
{
507 
  rtx temp = gen_reg_rtx (SImode);
508 
  emit_insn (gen_movsi (temp, constm1_rtx));
509 
  emit_insn (gen_xorsi3 (operands[0], temp, operands[1]));
510 
  DONE;
511 
})
512 
 
513 
(define_insn "negsf2"
514 
  [(set (match_operand:SF 0 "register_operand" "=f")
515 
        (neg:SF (match_operand:SF 1 "register_operand" "f")))]
516 
  "TARGET_HARD_FLOAT"
517 
  "neg.s\t%0, %1"
518 
  [(set_attr "type"     "farith")
519 
   (set_attr "mode"     "SF")
520 
   (set_attr "length"   "3")])
521 
 
522 
 
523 
;; Logical instructions.
524 
 
525 
(define_insn "andsi3"
526 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
527 
        (and:SI (match_operand:SI 1 "register_operand" "%r,r")
528 
                (match_operand:SI 2 "mask_operand" "P,r")))]
529 
  ""
530 
  "@
531 
   extui\t%0, %1, 0, %K2
532 
   and\t%0, %1, %2"
533 
  [(set_attr "type"     "arith,arith")
534 
   (set_attr "mode"     "SI")
535 
   (set_attr "length"   "3,3")])
536 
 
537 
(define_insn "iorsi3"
538 
  [(set (match_operand:SI 0 "register_operand" "=a")
539 
        (ior:SI (match_operand:SI 1 "register_operand" "%r")
540 
                (match_operand:SI 2 "register_operand" "r")))]
541 
  ""
542 
  "or\t%0, %1, %2"
543 
  [(set_attr "type"     "arith")
544 
   (set_attr "mode"     "SI")
545 
   (set_attr "length"   "3")])
546 
 
547 
(define_insn "xorsi3"
548 
  [(set (match_operand:SI 0 "register_operand" "=a")
549 
        (xor:SI (match_operand:SI 1 "register_operand" "%r")
550 
                (match_operand:SI 2 "register_operand" "r")))]
551 
  ""
552 
  "xor\t%0, %1, %2"
553 
  [(set_attr "type"     "arith")
554 
   (set_attr "mode"     "SI")
555 
   (set_attr "length"   "3")])
556 
 
557 
 
558 
;; Zero-extend instructions.
559 
 
560 
(define_insn "zero_extendhisi2"
561 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
562 
        (zero_extend:SI (match_operand:HI 1 "nonimmed_operand" "r,U")))]
563 
  ""
564 
  "@
565 
   extui\t%0, %1, 0, 16
566 
   l16ui\t%0, %1"
567 
  [(set_attr "type"     "arith,load")
568 
   (set_attr "mode"     "SI")
569 
   (set_attr "length"   "3,3")])
570 
 
571 
(define_insn "zero_extendqisi2"
572 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
573 
        (zero_extend:SI (match_operand:QI 1 "nonimmed_operand" "r,U")))]
574 
  ""
575 
  "@
576 
   extui\t%0, %1, 0, 8
577 
   l8ui\t%0, %1"
578 
  [(set_attr "type"     "arith,load")
579 
   (set_attr "mode"     "SI")
580 
   (set_attr "length"   "3,3")])
581 
 
582 
 
583 
;; Sign-extend instructions.
584 
 
585 
(define_expand "extendhisi2"
586 
  [(set (match_operand:SI 0 "register_operand" "")
587 
        (sign_extend:SI (match_operand:HI 1 "register_operand" "")))]
588 
  ""
589 
{
590 
  if (sext_operand (operands[1], HImode))
591 
    emit_insn (gen_extendhisi2_internal (operands[0], operands[1]));
592 
  else
593 
    xtensa_extend_reg (operands[0], operands[1]);
594 
  DONE;
595 
})
596 
 
597 
(define_insn "extendhisi2_internal"
598 
  [(set (match_operand:SI 0 "register_operand" "=B,a")
599 
        (sign_extend:SI (match_operand:HI 1 "sext_operand" "r,U")))]
600 
  ""
601 
  "@
602 
   sext\t%0, %1, 15
603 
   l16si\t%0, %1"
604 
  [(set_attr "type"     "arith,load")
605 
   (set_attr "mode"     "SI")
606 
   (set_attr "length"   "3,3")])
607 
 
608 
(define_expand "extendqisi2"
609 
  [(set (match_operand:SI 0 "register_operand" "")
610 
        (sign_extend:SI (match_operand:QI 1 "register_operand" "")))]
611 
  ""
612 
{
613 
  if (TARGET_SEXT)
614 
    emit_insn (gen_extendqisi2_internal (operands[0], operands[1]));
615 
  else
616 
    xtensa_extend_reg (operands[0], operands[1]);
617 
  DONE;
618 
})
619 
 
620 
(define_insn "extendqisi2_internal"
621 
  [(set (match_operand:SI 0 "register_operand" "=B")
622 
        (sign_extend:SI (match_operand:QI 1 "register_operand" "r")))]
623 
  "TARGET_SEXT"
624 
  "sext\t%0, %1, 7"
625 
  [(set_attr "type"     "arith")
626 
   (set_attr "mode"     "SI")
627 
   (set_attr "length"   "3")])
628 
 
629 
 
630 
;; Field extract instructions.
631 
 
632 
(define_expand "extv"
633 
  [(set (match_operand:SI 0 "register_operand" "")
634 
        (sign_extract:SI (match_operand:SI 1 "register_operand" "")
635 
                         (match_operand:SI 2 "const_int_operand" "")
636 
                         (match_operand:SI 3 "const_int_operand" "")))]
637 
  "TARGET_SEXT"
638 
{
639 
  if (!sext_fldsz_operand (operands[2], SImode))
640 
    FAIL;
641 
 
642 
  /* We could expand to a right shift followed by SEXT but that's
643 
     no better than the standard left and right shift sequence.  */
644 
  if (!lsbitnum_operand (operands[3], SImode))
645 
    FAIL;
646 
 
647 
  emit_insn (gen_extv_internal (operands[0], operands[1],
648 
                                operands[2], operands[3]));
649 
  DONE;
650 
})
651 
 
652 
(define_insn "extv_internal"
653 
  [(set (match_operand:SI 0 "register_operand" "=a")
654 
        (sign_extract:SI (match_operand:SI 1 "register_operand" "r")
655 
                         (match_operand:SI 2 "sext_fldsz_operand" "i")
656 
                         (match_operand:SI 3 "lsbitnum_operand" "i")))]
657 
  "TARGET_SEXT"
658 
{
659 
  int fldsz = INTVAL (operands[2]);
660 
  operands[2] = GEN_INT (fldsz - 1);
661 
  return "sext\t%0, %1, %2";
662 
}
663 
  [(set_attr "type"     "arith")
664 
   (set_attr "mode"     "SI")
665 
   (set_attr "length"   "3")])
666 
 
667 
(define_expand "extzv"
668 
  [(set (match_operand:SI 0 "register_operand" "")
669 
        (zero_extract:SI (match_operand:SI 1 "register_operand" "")
670 
                         (match_operand:SI 2 "const_int_operand" "")
671 
                         (match_operand:SI 3 "const_int_operand" "")))]
672 
  ""
673 
{
674 
  if (!extui_fldsz_operand (operands[2], SImode))
675 
    FAIL;
676 
  emit_insn (gen_extzv_internal (operands[0], operands[1],
677 
                                 operands[2], operands[3]));
678 
  DONE;
679 
})
680 
 
681 
(define_insn "extzv_internal"
682 
  [(set (match_operand:SI 0 "register_operand" "=a")
683 
        (zero_extract:SI (match_operand:SI 1 "register_operand" "r")
684 
                         (match_operand:SI 2 "extui_fldsz_operand" "i")
685 
                         (match_operand:SI 3 "const_int_operand" "i")))]
686 
  ""
687 
{
688 
  int shift;
689 
  if (BITS_BIG_ENDIAN)
690 
    shift = (32 - (INTVAL (operands[2]) + INTVAL (operands[3]))) & 0x1f;
691 
  else
692 
    shift = INTVAL (operands[3]) & 0x1f;
693 
  operands[3] = GEN_INT (shift);
694 
  return "extui\t%0, %1, %3, %2";
695 
}
696 
  [(set_attr "type"     "arith")
697 
   (set_attr "mode"     "SI")
698 
   (set_attr "length"   "3")])
699 
 
700 
 
701 
;; Conversions.
702 
 
703 
(define_insn "fix_truncsfsi2"
704 
  [(set (match_operand:SI 0 "register_operand" "=a")
705 
        (fix:SI (match_operand:SF 1 "register_operand" "f")))]
706 
  "TARGET_HARD_FLOAT"
707 
  "trunc.s\t%0, %1, 0"
708 
  [(set_attr "type"     "fconv")
709 
   (set_attr "mode"     "SF")
710 
   (set_attr "length"   "3")])
711 
 
712 
(define_insn "fixuns_truncsfsi2"
713 
  [(set (match_operand:SI 0 "register_operand" "=a")
714 
        (unsigned_fix:SI (match_operand:SF 1 "register_operand" "f")))]
715 
  "TARGET_HARD_FLOAT"
716 
  "utrunc.s\t%0, %1, 0"
717 
  [(set_attr "type"     "fconv")
718 
   (set_attr "mode"     "SF")
719 
   (set_attr "length"   "3")])
720 
 
721 
(define_insn "floatsisf2"
722 
  [(set (match_operand:SF 0 "register_operand" "=f")
723 
        (float:SF (match_operand:SI 1 "register_operand" "a")))]
724 
  "TARGET_HARD_FLOAT"
725 
  "float.s\t%0, %1, 0"
726 
  [(set_attr "type"     "fconv")
727 
   (set_attr "mode"     "SF")
728 
   (set_attr "length"   "3")])
729 
 
730 
(define_insn "floatunssisf2"
731 
  [(set (match_operand:SF 0 "register_operand" "=f")
732 
        (unsigned_float:SF (match_operand:SI 1 "register_operand" "a")))]
733 
  "TARGET_HARD_FLOAT"
734 
  "ufloat.s\t%0, %1, 0"
735 
  [(set_attr "type"     "fconv")
736 
   (set_attr "mode"     "SF")
737 
   (set_attr "length"   "3")])
738 
 
739 
 
740 
;; Data movement instructions.
741 
 
742 
;; 64-bit Integer moves
743 
 
744 
(define_expand "movdi"
745 
  [(set (match_operand:DI 0 "nonimmed_operand" "")
746 
        (match_operand:DI 1 "general_operand" ""))]
747 
  ""
748 
{
749 
  if (CONSTANT_P (operands[1]) && !TARGET_CONST16)
750 
    operands[1] = force_const_mem (DImode, operands[1]);
751 
 
752 
  if (!register_operand (operands[0], DImode)
753 
      && !register_operand (operands[1], DImode))
754 
    operands[1] = force_reg (DImode, operands[1]);
755 
 
756 
  operands[1] = xtensa_copy_incoming_a7 (operands[1]);
757 
})
758 
 
759 
(define_insn_and_split "movdi_internal"
760 
  [(set (match_operand:DI 0 "nonimmed_operand" "=a,W,a,a,U")
761 
        (match_operand:DI 1 "move_operand" "r,i,T,U,r"))]
762 
  "register_operand (operands[0], DImode)
763 
   || register_operand (operands[1], DImode)"
764 
  "#"
765 
  "reload_completed"
766 
  [(set (match_dup 0) (match_dup 2))
767 
   (set (match_dup 1) (match_dup 3))]
768 
{
769 
  xtensa_split_operand_pair (operands, SImode);
770 
  if (reg_overlap_mentioned_p (operands[0], operands[3]))
771 
    {
772 
      rtx tmp;
773 
      tmp = operands[0], operands[0] = operands[1], operands[1] = tmp;
774 
      tmp = operands[2], operands[2] = operands[3], operands[3] = tmp;
775 
    }
776 
})
777 
 
778 
;; 32-bit Integer moves
779 
 
780 
(define_expand "movsi"
781 
  [(set (match_operand:SI 0 "nonimmed_operand" "")
782 
        (match_operand:SI 1 "general_operand" ""))]
783 
  ""
784 
{
785 
  if (xtensa_emit_move_sequence (operands, SImode))
786 
    DONE;
787 
})
788 
 
789 
(define_insn "movsi_internal"
790 
  [(set (match_operand:SI 0 "nonimmed_operand" "=D,D,D,D,R,R,a,q,a,W,a,a,U,*a,*A")
791 
        (match_operand:SI 1 "move_operand" "M,D,d,R,D,d,r,r,I,i,T,U,r,*A,*r"))]
792 
  "xtensa_valid_move (SImode, operands)"
793 
  "@
794 
   movi.n\t%0, %x1
795 
   mov.n\t%0, %1
796 
   mov.n\t%0, %1
797 
   %v1l32i.n\t%0, %1
798 
   %v0s32i.n\t%1, %0
799 
   %v0s32i.n\t%1, %0
800 
   mov\t%0, %1
801 
   movsp\t%0, %1
802 
   movi\t%0, %x1
803 
   const16\t%0, %t1\;const16\t%0, %b1
804 
   %v1l32r\t%0, %1
805 
   %v1l32i\t%0, %1
806 
   %v0s32i\t%1, %0
807 
   rsr\t%0, ACCLO
808 
   wsr\t%1, ACCLO"
809 
  [(set_attr "type" "move,move,move,load,store,store,move,move,move,move,load,load,store,rsr,wsr")
810 
   (set_attr "mode"     "SI")
811 
   (set_attr "length"   "2,2,2,2,2,2,3,3,3,6,3,3,3,3,3")])
812 
 
813 
;; 16-bit Integer moves
814 
 
815 
(define_expand "movhi"
816 
  [(set (match_operand:HI 0 "nonimmed_operand" "")
817 
        (match_operand:HI 1 "general_operand" ""))]
818 
  ""
819 
{
820 
  if (xtensa_emit_move_sequence (operands, HImode))
821 
    DONE;
822 
})
823 
 
824 
(define_insn "movhi_internal"
825 
  [(set (match_operand:HI 0 "nonimmed_operand" "=D,D,a,a,a,U,*a,*A")
826 
        (match_operand:HI 1 "move_operand" "M,d,r,I,U,r,*A,*r"))]
827 
  "xtensa_valid_move (HImode, operands)"
828 
  "@
829 
   movi.n\t%0, %x1
830 
   mov.n\t%0, %1
831 
   mov\t%0, %1
832 
   movi\t%0, %x1
833 
   %v1l16ui\t%0, %1
834 
   %v0s16i\t%1, %0
835 
   rsr\t%0, ACCLO
836 
   wsr\t%1, ACCLO"
837 
  [(set_attr "type"     "move,move,move,move,load,store,rsr,wsr")
838 
   (set_attr "mode"     "HI")
839 
   (set_attr "length"   "2,2,3,3,3,3,3,3")])
840 
 
841 
;; 8-bit Integer moves
842 
 
843 
(define_expand "movqi"
844 
  [(set (match_operand:QI 0 "nonimmed_operand" "")
845 
        (match_operand:QI 1 "general_operand" ""))]
846 
  ""
847 
{
848 
  if (xtensa_emit_move_sequence (operands, QImode))
849 
    DONE;
850 
})
851 
 
852 
(define_insn "movqi_internal"
853 
  [(set (match_operand:QI 0 "nonimmed_operand" "=D,D,a,a,a,U,*a,*A")
854 
        (match_operand:QI 1 "move_operand" "M,d,r,I,U,r,*A,*r"))]
855 
  "xtensa_valid_move (QImode, operands)"
856 
  "@
857 
   movi.n\t%0, %x1
858 
   mov.n\t%0, %1
859 
   mov\t%0, %1
860 
   movi\t%0, %x1
861 
   %v1l8ui\t%0, %1
862 
   %v0s8i\t%1, %0
863 
   rsr\t%0, ACCLO
864 
   wsr\t%1, ACCLO"
865 
  [(set_attr "type"     "move,move,move,move,load,store,rsr,wsr")
866 
   (set_attr "mode"     "QI")
867 
   (set_attr "length"   "2,2,3,3,3,3,3,3")])
868 
 
869 
;; 32-bit floating point moves
870 
 
871 
(define_expand "movsf"
872 
  [(set (match_operand:SF 0 "nonimmed_operand" "")
873 
        (match_operand:SF 1 "general_operand" ""))]
874 
  ""
875 
{
876 
  if (!TARGET_CONST16 && CONSTANT_P (operands[1]))
877 
    operands[1] = force_const_mem (SFmode, operands[1]);
878 
 
879 
  if ((!register_operand (operands[0], SFmode)
880 
       && !register_operand (operands[1], SFmode))
881 
      || (FP_REG_P (xt_true_regnum (operands[0]))
882 
          && !(reload_in_progress | reload_completed)
883 
          && (constantpool_mem_p (operands[1])
884 
              || CONSTANT_P (operands[1]))))
885 
    operands[1] = force_reg (SFmode, operands[1]);
886 
 
887 
  operands[1] = xtensa_copy_incoming_a7 (operands[1]);
888 
})
889 
 
890 
(define_insn "movsf_internal"
891 
  [(set (match_operand:SF 0 "nonimmed_operand" "=f,f,U,D,D,R,a,f,a,W,a,a,U")
892 
        (match_operand:SF 1 "move_operand" "f,U,f,d,R,d,r,r,f,iF,T,U,r"))]
893 
  "((register_operand (operands[0], SFmode)
894 
     || register_operand (operands[1], SFmode))
895 
    && !(FP_REG_P (xt_true_regnum (operands[0]))
896 
         && (constantpool_mem_p (operands[1]) || CONSTANT_P (operands[1]))))"
897 
  "@
898 
   mov.s\t%0, %1
899 
   %v1lsi\t%0, %1
900 
   %v0ssi\t%1, %0
901 
   mov.n\t%0, %1
902 
   %v1l32i.n\t%0, %1
903 
   %v0s32i.n\t%1, %0
904 
   mov\t%0, %1
905 
   wfr\t%0, %1
906 
   rfr\t%0, %1
907 
   const16\t%0, %t1\;const16\t%0, %b1
908 
   %v1l32r\t%0, %1
909 
   %v1l32i\t%0, %1
910 
   %v0s32i\t%1, %0"
911 
  [(set_attr "type"     "farith,fload,fstore,move,load,store,move,farith,farith,move,load,load,store")
912 
   (set_attr "mode"     "SF")
913 
   (set_attr "length"   "3,3,3,2,2,2,3,3,3,6,3,3,3")])
914 
 
915 
(define_insn "*lsiu"
916 
  [(set (match_operand:SF 0 "register_operand" "=f")
917 
        (mem:SF (plus:SI (match_operand:SI 1 "register_operand" "+a")
918 
                         (match_operand:SI 2 "fpmem_offset_operand" "i"))))
919 
   (set (match_dup 1)
920 
        (plus:SI (match_dup 1) (match_dup 2)))]
921 
  "TARGET_HARD_FLOAT"
922 
{
923 
  if (volatile_refs_p (PATTERN (insn)))
924 
    output_asm_insn ("memw", operands);
925 
  return "lsiu\t%0, %1, %2";
926 
}
927 
  [(set_attr "type"     "fload")
928 
   (set_attr "mode"     "SF")
929 
   (set_attr "length"   "3")])
930 
 
931 
(define_insn "*ssiu"
932 
  [(set (mem:SF (plus:SI (match_operand:SI 0 "register_operand" "+a")
933 
                         (match_operand:SI 1 "fpmem_offset_operand" "i")))
934 
        (match_operand:SF 2 "register_operand" "f"))
935 
   (set (match_dup 0)
936 
        (plus:SI (match_dup 0) (match_dup 1)))]
937 
  "TARGET_HARD_FLOAT"
938 
{
939 
  if (volatile_refs_p (PATTERN (insn)))
940 
    output_asm_insn ("memw", operands);
941 
  return "ssiu\t%2, %0, %1";
942 
}
943 
  [(set_attr "type"     "fstore")
944 
   (set_attr "mode"     "SF")
945 
   (set_attr "length"   "3")])
946 
 
947 
;; 64-bit floating point moves
948 
 
949 
(define_expand "movdf"
950 
  [(set (match_operand:DF 0 "nonimmed_operand" "")
951 
        (match_operand:DF 1 "general_operand" ""))]
952 
  ""
953 
{
954 
  if (CONSTANT_P (operands[1]) && !TARGET_CONST16)
955 
    operands[1] = force_const_mem (DFmode, operands[1]);
956 
 
957 
  if (!register_operand (operands[0], DFmode)
958 
      && !register_operand (operands[1], DFmode))
959 
    operands[1] = force_reg (DFmode, operands[1]);
960 
 
961 
  operands[1] = xtensa_copy_incoming_a7 (operands[1]);
962 
})
963 
 
964 
(define_insn_and_split "movdf_internal"
965 
  [(set (match_operand:DF 0 "nonimmed_operand" "=a,W,a,a,U")
966 
        (match_operand:DF 1 "move_operand" "r,iF,T,U,r"))]
967 
  "register_operand (operands[0], DFmode)
968 
   || register_operand (operands[1], DFmode)"
969 
  "#"
970 
  "reload_completed"
971 
  [(set (match_dup 0) (match_dup 2))
972 
   (set (match_dup 1) (match_dup 3))]
973 
{
974 
  xtensa_split_operand_pair (operands, SFmode);
975 
  if (reg_overlap_mentioned_p (operands[0], operands[3]))
976 
    {
977 
      rtx tmp;
978 
      tmp = operands[0], operands[0] = operands[1], operands[1] = tmp;
979 
      tmp = operands[2], operands[2] = operands[3], operands[3] = tmp;
980 
    }
981 
})
982 
 
983 
;; Block moves
984 
 
985 
(define_expand "movmemsi"
986 
  [(parallel [(set (match_operand:BLK 0 "" "")
987 
                   (match_operand:BLK 1 "" ""))
988 
              (use (match_operand:SI 2 "arith_operand" ""))
989 
              (use (match_operand:SI 3 "const_int_operand" ""))])]
990 
  ""
991 
{
992 
  if (!xtensa_expand_block_move (operands))
993 
    FAIL;
994 
  DONE;
995 
})
996 
 
997 
 
998 
;; Shift instructions.
999 
 
1000 
(define_expand "ashlsi3"
1001 
  [(set (match_operand:SI 0 "register_operand" "")
1002 
        (ashift:SI (match_operand:SI 1 "register_operand" "")
1003 
                   (match_operand:SI 2 "arith_operand" "")))]
1004 
  ""
1005 
{
1006 
  operands[1] = xtensa_copy_incoming_a7 (operands[1]);
1007 
})
1008 
 
1009 
(define_insn "ashlsi3_internal"
1010 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
1011 
        (ashift:SI (match_operand:SI 1 "register_operand" "r,r")
1012 
                   (match_operand:SI 2 "arith_operand" "J,r")))]
1013 
  ""
1014 
  "@
1015 
   slli\t%0, %1, %R2
1016 
   ssl\t%2\;sll\t%0, %1"
1017 
  [(set_attr "type"     "arith,arith")
1018 
   (set_attr "mode"     "SI")
1019 
   (set_attr "length"   "3,6")])
1020 
 
1021 
(define_insn "ashrsi3"
1022 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
1023 
        (ashiftrt:SI (match_operand:SI 1 "register_operand" "r,r")
1024 
                     (match_operand:SI 2 "arith_operand" "J,r")))]
1025 
  ""
1026 
  "@
1027 
   srai\t%0, %1, %R2
1028 
   ssr\t%2\;sra\t%0, %1"
1029 
  [(set_attr "type"     "arith,arith")
1030 
   (set_attr "mode"     "SI")
1031 
   (set_attr "length"   "3,6")])
1032 
 
1033 
(define_insn "lshrsi3"
1034 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
1035 
        (lshiftrt:SI (match_operand:SI 1 "register_operand" "r,r")
1036 
                     (match_operand:SI 2 "arith_operand" "J,r")))]
1037 
  ""
1038 
{
1039 
  if (which_alternative == 0)
1040 
    {
1041 
      if ((INTVAL (operands[2]) & 0x1f) < 16)
1042 
        return "srli\t%0, %1, %R2";
1043 
      else
1044 
        return "extui\t%0, %1, %R2, %L2";
1045 
    }
1046 
  return "ssr\t%2\;srl\t%0, %1";
1047 
}
1048 
  [(set_attr "type"     "arith,arith")
1049 
   (set_attr "mode"     "SI")
1050 
   (set_attr "length"   "3,6")])
1051 
 
1052 
(define_insn "rotlsi3"
1053 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
1054 
        (rotate:SI (match_operand:SI 1 "register_operand" "r,r")
1055 
                     (match_operand:SI 2 "arith_operand" "J,r")))]
1056 
  ""
1057 
  "@
1058 
   ssai\t%L2\;src\t%0, %1, %1
1059 
   ssl\t%2\;src\t%0, %1, %1"
1060 
  [(set_attr "type"     "multi,multi")
1061 
   (set_attr "mode"     "SI")
1062 
   (set_attr "length"   "6,6")])
1063 
 
1064 
(define_insn "rotrsi3"
1065 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
1066 
        (rotatert:SI (match_operand:SI 1 "register_operand" "r,r")
1067 
                     (match_operand:SI 2 "arith_operand" "J,r")))]
1068 
  ""
1069 
  "@
1070 
   ssai\t%R2\;src\t%0, %1, %1
1071 
   ssr\t%2\;src\t%0, %1, %1"
1072 
  [(set_attr "type"     "multi,multi")
1073 
   (set_attr "mode"     "SI")
1074 
   (set_attr "length"   "6,6")])
1075 
 
1076 
 
1077 
;; Comparisons.
1078 
 
1079 
;; Handle comparisons by stashing away the operands and then using that
1080 
;; information in the subsequent conditional branch.
1081 
 
1082 
(define_expand "cmpsi"
1083 
  [(set (cc0)
1084 
        (compare:CC (match_operand:SI 0 "register_operand" "")
1085 
                    (match_operand:SI 1 "nonmemory_operand" "")))]
1086 
  ""
1087 
{
1088 
  branch_cmp[0] = operands[0];
1089 
  branch_cmp[1] = operands[1];
1090 
  branch_type = CMP_SI;
1091 
  DONE;
1092 
})
1093 
 
1094 
(define_expand "tstsi"
1095 
  [(set (cc0)
1096 
        (match_operand:SI 0 "register_operand" ""))]
1097 
  ""
1098 
{
1099 
  branch_cmp[0] = operands[0];
1100 
  branch_cmp[1] = const0_rtx;
1101 
  branch_type = CMP_SI;
1102 
  DONE;
1103 
})
1104 
 
1105 
(define_expand "cmpsf"
1106 
  [(set (cc0)
1107 
        (compare:CC (match_operand:SF 0 "register_operand" "")
1108 
                    (match_operand:SF 1 "register_operand" "")))]
1109 
  "TARGET_HARD_FLOAT"
1110 
{
1111 
  branch_cmp[0] = operands[0];
1112 
  branch_cmp[1] = operands[1];
1113 
  branch_type = CMP_SF;
1114 
  DONE;
1115 
})
1116 
 
1117 
 
1118 
;; Conditional branches.
1119 
 
1120 
(define_expand "beq"
1121 
  [(set (pc)
1122 
        (if_then_else (eq (cc0) (const_int 0))
1123 
                      (label_ref (match_operand 0 "" ""))
1124 
                      (pc)))]
1125 
  ""
1126 
{
1127 
  xtensa_expand_conditional_branch (operands, EQ);
1128 
  DONE;
1129 
})
1130 
 
1131 
(define_expand "bne"
1132 
  [(set (pc)
1133 
        (if_then_else (ne (cc0) (const_int 0))
1134 
                      (label_ref (match_operand 0 "" ""))
1135 
                      (pc)))]
1136 
  ""
1137 
{
1138 
  xtensa_expand_conditional_branch (operands, NE);
1139 
  DONE;
1140 
})
1141 
 
1142 
(define_expand "bgt"
1143 
  [(set (pc)
1144 
        (if_then_else (gt (cc0) (const_int 0))
1145 
                      (label_ref (match_operand 0 "" ""))
1146 
                      (pc)))]
1147 
  ""
1148 
{
1149 
  xtensa_expand_conditional_branch (operands, GT);
1150 
  DONE;
1151 
})
1152 
 
1153 
(define_expand "bge"
1154 
  [(set (pc)
1155 
        (if_then_else (ge (cc0) (const_int 0))
1156 
                      (label_ref (match_operand 0 "" ""))
1157 
                      (pc)))]
1158 
  ""
1159 
{
1160 
  xtensa_expand_conditional_branch (operands, GE);
1161 
  DONE;
1162 
})
1163 
 
1164 
(define_expand "blt"
1165 
  [(set (pc)
1166 
        (if_then_else (lt (cc0) (const_int 0))
1167 
                      (label_ref (match_operand 0 "" ""))
1168 
                      (pc)))]
1169 
  ""
1170 
{
1171 
  xtensa_expand_conditional_branch (operands, LT);
1172 
  DONE;
1173 
})
1174 
 
1175 
(define_expand "ble"
1176 
  [(set (pc)
1177 
        (if_then_else (le (cc0) (const_int 0))
1178 
                      (label_ref (match_operand 0 "" ""))
1179 
                      (pc)))]
1180 
  ""
1181 
{
1182 
  xtensa_expand_conditional_branch (operands, LE);
1183 
  DONE;
1184 
})
1185 
 
1186 
(define_expand "bgtu"
1187 
  [(set (pc)
1188 
        (if_then_else (gtu (cc0) (const_int 0))
1189 
                      (label_ref (match_operand 0 "" ""))
1190 
                      (pc)))]
1191 
  ""
1192 
{
1193 
  xtensa_expand_conditional_branch (operands, GTU);
1194 
  DONE;
1195 
})
1196 
 
1197 
(define_expand "bgeu"
1198 
  [(set (pc)
1199 
        (if_then_else (geu (cc0) (const_int 0))
1200 
                      (label_ref (match_operand 0 "" ""))
1201 
                      (pc)))]
1202 
  ""
1203 
{
1204 
  xtensa_expand_conditional_branch (operands, GEU);
1205 
  DONE;
1206 
})
1207 
 
1208 
(define_expand "bltu"
1209 
  [(set (pc)
1210 
        (if_then_else (ltu (cc0) (const_int 0))
1211 
                      (label_ref (match_operand 0 "" ""))
1212 
                      (pc)))]
1213 
  ""
1214 
{
1215 
  xtensa_expand_conditional_branch (operands, LTU);
1216 
  DONE;
1217 
})
1218 
 
1219 
(define_expand "bleu"
1220 
  [(set (pc)
1221 
        (if_then_else (leu (cc0) (const_int 0))
1222 
                      (label_ref (match_operand 0 "" ""))
1223 
                      (pc)))]
1224 
  ""
1225 
{
1226 
  xtensa_expand_conditional_branch (operands, LEU);
1227 
  DONE;
1228 
})
1229 
 
1230 
;; Branch patterns for standard integer comparisons
1231 
 
1232 
(define_insn "*btrue"
1233 
  [(set (pc)
1234 
        (if_then_else (match_operator 3 "branch_operator"
1235 
                         [(match_operand:SI 0 "register_operand" "r,r")
1236 
                          (match_operand:SI 1 "branch_operand" "K,r")])
1237 
                      (label_ref (match_operand 2 "" ""))
1238 
                      (pc)))]
1239 
  ""
1240 
{
1241 
  if (which_alternative == 1)
1242 
    {
1243 
      switch (GET_CODE (operands[3]))
1244 
        {
1245 
        case EQ:        return "beq\t%0, %1, %2";
1246 
        case NE:        return "bne\t%0, %1, %2";
1247 
        case LT:        return "blt\t%0, %1, %2";
1248 
        case GE:        return "bge\t%0, %1, %2";
1249 
        default:        gcc_unreachable ();
1250 
        }
1251 
    }
1252 
  else if (INTVAL (operands[1]) == 0)
1253 
    {
1254 
      switch (GET_CODE (operands[3]))
1255 
        {
1256 
        case EQ:        return (TARGET_DENSITY
1257 
                                ? "beqz.n\t%0, %2"
1258 
                                : "beqz\t%0, %2");
1259 
        case NE:        return (TARGET_DENSITY
1260 
                                ? "bnez.n\t%0, %2"
1261 
                                : "bnez\t%0, %2");
1262 
        case LT:        return "bltz\t%0, %2";
1263 
        case GE:        return "bgez\t%0, %2";
1264 
        default:        gcc_unreachable ();
1265 
        }
1266 
    }
1267 
  else
1268 
    {
1269 
      switch (GET_CODE (operands[3]))
1270 
        {
1271 
        case EQ:        return "beqi\t%0, %d1, %2";
1272 
        case NE:        return "bnei\t%0, %d1, %2";
1273 
        case LT:        return "blti\t%0, %d1, %2";
1274 
        case GE:        return "bgei\t%0, %d1, %2";
1275 
        default:        gcc_unreachable ();
1276 
        }
1277 
    }
1278 
  gcc_unreachable ();
1279 
}
1280 
  [(set_attr "type"     "jump,jump")
1281 
   (set_attr "mode"     "none")
1282 
   (set_attr "length"   "3,3")])
1283 
 
1284 
(define_insn "*bfalse"
1285 
  [(set (pc)
1286 
        (if_then_else (match_operator 3 "branch_operator"
1287 
                         [(match_operand:SI 0 "register_operand" "r,r")
1288 
                          (match_operand:SI 1 "branch_operand" "K,r")])
1289 
                      (pc)
1290 
                      (label_ref (match_operand 2 "" ""))))]
1291 
  ""
1292 
{
1293 
  if (which_alternative == 1)
1294 
    {
1295 
      switch (GET_CODE (operands[3]))
1296 
        {
1297 
        case EQ:        return "bne\t%0, %1, %2";
1298 
        case NE:        return "beq\t%0, %1, %2";
1299 
        case LT:        return "bge\t%0, %1, %2";
1300 
        case GE:        return "blt\t%0, %1, %2";
1301 
        default:        gcc_unreachable ();
1302 
        }
1303 
    }
1304 
  else if (INTVAL (operands[1]) == 0)
1305 
    {
1306 
      switch (GET_CODE (operands[3]))
1307 
        {
1308 
        case EQ:        return (TARGET_DENSITY
1309 
                                ? "bnez.n\t%0, %2"
1310 
                                : "bnez\t%0, %2");
1311 
        case NE:        return (TARGET_DENSITY
1312 
                                ? "beqz.n\t%0, %2"
1313 
                                : "beqz\t%0, %2");
1314 
        case LT:        return "bgez\t%0, %2";
1315 
        case GE:        return "bltz\t%0, %2";
1316 
        default:        gcc_unreachable ();
1317 
        }
1318 
    }
1319 
  else
1320 
    {
1321 
      switch (GET_CODE (operands[3]))
1322 
        {
1323 
        case EQ:        return "bnei\t%0, %d1, %2";
1324 
        case NE:        return "beqi\t%0, %d1, %2";
1325 
        case LT:        return "bgei\t%0, %d1, %2";
1326 
        case GE:        return "blti\t%0, %d1, %2";
1327 
        default:        gcc_unreachable ();
1328 
        }
1329 
    }
1330 
  gcc_unreachable ();
1331 
}
1332 
  [(set_attr "type"     "jump,jump")
1333 
   (set_attr "mode"     "none")
1334 
   (set_attr "length"   "3,3")])
1335 
 
1336 
(define_insn "*ubtrue"
1337 
  [(set (pc)
1338 
        (if_then_else (match_operator 3 "ubranch_operator"
1339 
                         [(match_operand:SI 0 "register_operand" "r,r")
1340 
                          (match_operand:SI 1 "ubranch_operand" "L,r")])
1341 
                      (label_ref (match_operand 2 "" ""))
1342 
                      (pc)))]
1343 
  ""
1344 
{
1345 
  if (which_alternative == 1)
1346 
    {
1347 
      switch (GET_CODE (operands[3]))
1348 
        {
1349 
        case LTU:       return "bltu\t%0, %1, %2";
1350 
        case GEU:       return "bgeu\t%0, %1, %2";
1351 
        default:        gcc_unreachable ();
1352 
        }
1353 
    }
1354 
  else
1355 
    {
1356 
      switch (GET_CODE (operands[3]))
1357 
        {
1358 
        case LTU:       return "bltui\t%0, %d1, %2";
1359 
        case GEU:       return "bgeui\t%0, %d1, %2";
1360 
        default:        gcc_unreachable ();
1361 
        }
1362 
    }
1363 
  gcc_unreachable ();
1364 
}
1365 
  [(set_attr "type"     "jump,jump")
1366 
   (set_attr "mode"     "none")
1367 
   (set_attr "length"   "3,3")])
1368 
 
1369 
(define_insn "*ubfalse"
1370 
  [(set (pc)
1371 
        (if_then_else (match_operator 3 "ubranch_operator"
1372 
                         [(match_operand:SI 0 "register_operand" "r,r")
1373 
                          (match_operand:SI 1 "ubranch_operand" "L,r")])
1374 
                      (pc)
1375 
                      (label_ref (match_operand 2 "" ""))))]
1376 
  ""
1377 
{
1378 
  if (which_alternative == 1)
1379 
    {
1380 
      switch (GET_CODE (operands[3]))
1381 
        {
1382 
        case LTU:       return "bgeu\t%0, %1, %2";
1383 
        case GEU:       return "bltu\t%0, %1, %2";
1384 
        default:        gcc_unreachable ();
1385 
        }
1386 
    }
1387 
  else
1388 
    {
1389 
      switch (GET_CODE (operands[3]))
1390 
        {
1391 
        case LTU:       return "bgeui\t%0, %d1, %2";
1392 
        case GEU:       return "bltui\t%0, %d1, %2";
1393 
        default:        gcc_unreachable ();
1394 
        }
1395 
    }
1396 
  gcc_unreachable ();
1397 
}
1398 
  [(set_attr "type"     "jump,jump")
1399 
   (set_attr "mode"     "none")
1400 
   (set_attr "length"   "3,3")])
1401 
 
1402 
;; Branch patterns for bit testing
1403 
 
1404 
(define_insn "*bittrue"
1405 
  [(set (pc)
1406 
        (if_then_else (match_operator 3 "boolean_operator"
1407 
                        [(zero_extract:SI
1408 
                            (match_operand:SI 0 "register_operand" "r,r")
1409 
                            (const_int 1)
1410 
                            (match_operand:SI 1 "arith_operand" "J,r"))
1411 
                         (const_int 0)])
1412 
                      (label_ref (match_operand 2 "" ""))
1413 
                      (pc)))]
1414 
  ""
1415 
{
1416 
  if (which_alternative == 0)
1417 
    {
1418 
      unsigned bitnum = INTVAL(operands[1]) & 0x1f;
1419 
      operands[1] = GEN_INT(bitnum);
1420 
      switch (GET_CODE (operands[3]))
1421 
        {
1422 
        case EQ:        return "bbci\t%0, %d1, %2";
1423 
        case NE:        return "bbsi\t%0, %d1, %2";
1424 
        default:        gcc_unreachable ();
1425 
        }
1426 
    }
1427 
  else
1428 
    {
1429 
      switch (GET_CODE (operands[3]))
1430 
        {
1431 
        case EQ:        return "bbc\t%0, %1, %2";
1432 
        case NE:        return "bbs\t%0, %1, %2";
1433 
        default:        gcc_unreachable ();
1434 
        }
1435 
    }
1436 
  gcc_unreachable ();
1437 
}
1438 
  [(set_attr "type"     "jump")
1439 
   (set_attr "mode"     "none")
1440 
   (set_attr "length"   "3")])
1441 
 
1442 
(define_insn "*bitfalse"
1443 
  [(set (pc)
1444 
        (if_then_else (match_operator 3 "boolean_operator"
1445 
                        [(zero_extract:SI
1446 
                            (match_operand:SI 0 "register_operand" "r,r")
1447 
                            (const_int 1)
1448 
                            (match_operand:SI 1 "arith_operand" "J,r"))
1449 
                         (const_int 0)])
1450 
                      (pc)
1451 
                      (label_ref (match_operand 2 "" ""))))]
1452 
  ""
1453 
{
1454 
  if (which_alternative == 0)
1455 
    {
1456 
      unsigned bitnum = INTVAL (operands[1]) & 0x1f;
1457 
      operands[1] = GEN_INT (bitnum);
1458 
      switch (GET_CODE (operands[3]))
1459 
        {
1460 
        case EQ:        return "bbsi\t%0, %d1, %2";
1461 
        case NE:        return "bbci\t%0, %d1, %2";
1462 
        default:        gcc_unreachable ();
1463 
        }
1464 
    }
1465 
  else
1466 
    {
1467 
      switch (GET_CODE (operands[3]))
1468 
        {
1469 
        case EQ:        return "bbs\t%0, %1, %2";
1470 
        case NE:        return "bbc\t%0, %1, %2";
1471 
        default:        gcc_unreachable ();
1472 
        }
1473 
    }
1474 
  gcc_unreachable ();
1475 
}
1476 
  [(set_attr "type"     "jump")
1477 
   (set_attr "mode"     "none")
1478 
   (set_attr "length"   "3")])
1479 
 
1480 
(define_insn "*masktrue"
1481 
  [(set (pc)
1482 
        (if_then_else (match_operator 3 "boolean_operator"
1483 
                 [(and:SI (match_operand:SI 0 "register_operand" "r")
1484 
                          (match_operand:SI 1 "register_operand" "r"))
1485 
                  (const_int 0)])
1486 
                      (label_ref (match_operand 2 "" ""))
1487 
                      (pc)))]
1488 
  ""
1489 
{
1490 
  switch (GET_CODE (operands[3]))
1491 
    {
1492 
    case EQ:            return "bnone\t%0, %1, %2";
1493 
    case NE:            return "bany\t%0, %1, %2";
1494 
    default:            gcc_unreachable ();
1495 
    }
1496 
}
1497 
  [(set_attr "type"     "jump")
1498 
   (set_attr "mode"     "none")
1499 
   (set_attr "length"   "3")])
1500 
 
1501 
(define_insn "*maskfalse"
1502 
  [(set (pc)
1503 
        (if_then_else (match_operator 3 "boolean_operator"
1504 
                 [(and:SI (match_operand:SI 0 "register_operand" "r")
1505 
                          (match_operand:SI 1 "register_operand" "r"))
1506 
                  (const_int 0)])
1507 
                      (pc)
1508 
                      (label_ref (match_operand 2 "" ""))))]
1509 
  ""
1510 
{
1511 
  switch (GET_CODE (operands[3]))
1512 
    {
1513 
    case EQ:            return "bany\t%0, %1, %2";
1514 
    case NE:            return "bnone\t%0, %1, %2";
1515 
    default:            gcc_unreachable ();
1516 
    }
1517 
}
1518 
  [(set_attr "type"     "jump")
1519 
   (set_attr "mode"     "none")
1520 
   (set_attr "length"   "3")])
1521 
 
1522 
 
1523 
;; Define the loop insns used by bct optimization to represent the
1524 
;; start and end of a zero-overhead loop (in loop.c).  This start
1525 
;; template generates the loop insn; the end template doesn't generate
1526 
;; any instructions since loop end is handled in hardware.
1527 
 
1528 
(define_insn "zero_cost_loop_start"
1529 
  [(set (pc)
1530 
        (if_then_else (eq (match_operand:SI 0 "register_operand" "a")
1531 
                          (const_int 0))
1532 
                      (label_ref (match_operand 1 "" ""))
1533 
                      (pc)))
1534 
   (set (reg:SI 19)
1535 
        (plus:SI (match_dup 0) (const_int -1)))]
1536 
  ""
1537 
  "loopnez\t%0, %l1"
1538 
  [(set_attr "type"     "jump")
1539 
   (set_attr "mode"     "none")
1540 
   (set_attr "length"   "3")])
1541 
 
1542 
(define_insn "zero_cost_loop_end"
1543 
  [(set (pc)
1544 
        (if_then_else (ne (reg:SI 19) (const_int 0))
1545 
                      (label_ref (match_operand 0 "" ""))
1546 
                      (pc)))
1547 
   (set (reg:SI 19)
1548 
        (plus:SI (reg:SI 19) (const_int -1)))]
1549 
  ""
1550 
{
1551 
    xtensa_emit_loop_end (insn, operands);
1552 
    return "";
1553 
}
1554 
  [(set_attr "type"     "jump")
1555 
   (set_attr "mode"     "none")
1556 
   (set_attr "length"   "0")])
1557 
 
1558 
 
1559 
;; Setting a register from a comparison.
1560 
 
1561 
(define_expand "seq"
1562 
  [(set (match_operand:SI 0 "register_operand" "")
1563 
        (match_dup 1))]
1564 
  ""
1565 
{
1566 
  operands[1] = gen_rtx_EQ (SImode, branch_cmp[0], branch_cmp[1]);
1567 
  if (!xtensa_expand_scc (operands))
1568 
    FAIL;
1569 
  DONE;
1570 
})
1571 
 
1572 
(define_expand "sne"
1573 
  [(set (match_operand:SI 0 "register_operand" "")
1574 
        (match_dup 1))]
1575 
  ""
1576 
{
1577 
  operands[1] = gen_rtx_NE (SImode, branch_cmp[0], branch_cmp[1]);
1578 
  if (!xtensa_expand_scc (operands))
1579 
    FAIL;
1580 
  DONE;
1581 
})
1582 
 
1583 
(define_expand "sgt"
1584 
  [(set (match_operand:SI 0 "register_operand" "")
1585 
        (match_dup 1))]
1586 
  ""
1587 
{
1588 
  operands[1] = gen_rtx_GT (SImode, branch_cmp[0], branch_cmp[1]);
1589 
  if (!xtensa_expand_scc (operands))
1590 
    FAIL;
1591 
  DONE;
1592 
})
1593 
 
1594 
(define_expand "sge"
1595 
  [(set (match_operand:SI 0 "register_operand" "")
1596 
        (match_dup 1))]
1597 
  ""
1598 
{
1599 
  operands[1] = gen_rtx_GE (SImode, branch_cmp[0], branch_cmp[1]);
1600 
  if (!xtensa_expand_scc (operands))
1601 
    FAIL;
1602 
  DONE;
1603 
})
1604 
 
1605 
(define_expand "slt"
1606 
  [(set (match_operand:SI 0 "register_operand" "")
1607 
        (match_dup 1))]
1608 
  ""
1609 
{
1610 
  operands[1] = gen_rtx_LT (SImode, branch_cmp[0], branch_cmp[1]);
1611 
  if (!xtensa_expand_scc (operands))
1612 
    FAIL;
1613 
  DONE;
1614 
})
1615 
 
1616 
(define_expand "sle"
1617 
  [(set (match_operand:SI 0 "register_operand" "")
1618 
        (match_dup 1))]
1619 
  ""
1620 
{
1621 
  operands[1] = gen_rtx_LE (SImode, branch_cmp[0], branch_cmp[1]);
1622 
  if (!xtensa_expand_scc (operands))
1623 
    FAIL;
1624 
  DONE;
1625 
})
1626 
 
1627 
 
1628 
;; Conditional moves.
1629 
 
1630 
(define_expand "movsicc"
1631 
  [(set (match_operand:SI 0 "register_operand" "")
1632 
        (if_then_else:SI (match_operand 1 "comparison_operator" "")
1633 
                         (match_operand:SI 2 "register_operand" "")
1634 
                         (match_operand:SI 3 "register_operand" "")))]
1635 
  ""
1636 
{
1637 
  if (!xtensa_expand_conditional_move (operands, 0))
1638 
    FAIL;
1639 
  DONE;
1640 
})
1641 
 
1642 
(define_expand "movsfcc"
1643 
  [(set (match_operand:SF 0 "register_operand" "")
1644 
        (if_then_else:SF (match_operand 1 "comparison_operator" "")
1645 
                         (match_operand:SF 2 "register_operand" "")
1646 
                         (match_operand:SF 3 "register_operand" "")))]
1647 
  ""
1648 
{
1649 
  if (!xtensa_expand_conditional_move (operands, 1))
1650 
    FAIL;
1651 
  DONE;
1652 
})
1653 
 
1654 
(define_insn "movsicc_internal0"
1655 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
1656 
        (if_then_else:SI (match_operator 4 "branch_operator"
1657 
                           [(match_operand:SI 1 "register_operand" "r,r")
1658 
                            (const_int 0)])
1659 
                         (match_operand:SI 2 "register_operand" "r,0")
1660 
                         (match_operand:SI 3 "register_operand" "0,r")))]
1661 
  ""
1662 
{
1663 
  if (which_alternative == 0)
1664 
    {
1665 
      switch (GET_CODE (operands[4]))
1666 
        {
1667 
        case EQ:        return "moveqz\t%0, %2, %1";
1668 
        case NE:        return "movnez\t%0, %2, %1";
1669 
        case LT:        return "movltz\t%0, %2, %1";
1670 
        case GE:        return "movgez\t%0, %2, %1";
1671 
        default:        gcc_unreachable ();
1672 
        }
1673 
    }
1674 
  else
1675 
    {
1676 
      switch (GET_CODE (operands[4]))
1677 
        {
1678 
        case EQ:        return "movnez\t%0, %3, %1";
1679 
        case NE:        return "moveqz\t%0, %3, %1";
1680 
        case LT:        return "movgez\t%0, %3, %1";
1681 
        case GE:        return "movltz\t%0, %3, %1";
1682 
        default:        gcc_unreachable ();
1683 
        }
1684 
    }
1685 
  gcc_unreachable ();
1686 
}
1687 
  [(set_attr "type"     "move,move")
1688 
   (set_attr "mode"     "SI")
1689 
   (set_attr "length"   "3,3")])
1690 
 
1691 
(define_insn "movsicc_internal1"
1692 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
1693 
        (if_then_else:SI (match_operator 4 "boolean_operator"
1694 
                           [(match_operand:CC 1 "register_operand" "b,b")
1695 
                            (const_int 0)])
1696 
                         (match_operand:SI 2 "register_operand" "r,0")
1697 
                         (match_operand:SI 3 "register_operand" "0,r")))]
1698 
  "TARGET_BOOLEANS"
1699 
{
1700 
  int isEq = (GET_CODE (operands[4]) == EQ);
1701 
  switch (which_alternative)
1702 
    {
1703 
    case 0:
1704 
      if (isEq) return "movf\t%0, %2, %1";
1705 
      return "movt\t%0, %2, %1";
1706 
    case 1:
1707 
      if (isEq) return "movt\t%0, %3, %1";
1708 
      return "movf\t%0, %3, %1";
1709 
    default:
1710 
      gcc_unreachable ();
1711 
    }
1712 
}
1713 
  [(set_attr "type"     "move,move")
1714 
   (set_attr "mode"     "SI")
1715 
   (set_attr "length"   "3,3")])
1716 
 
1717 
(define_insn "movsfcc_internal0"
1718 
  [(set (match_operand:SF 0 "register_operand" "=a,a,f,f")
1719 
        (if_then_else:SF (match_operator 4 "branch_operator"
1720 
                           [(match_operand:SI 1 "register_operand" "r,r,r,r")
1721 
                            (const_int 0)])
1722 
                         (match_operand:SF 2 "register_operand" "r,0,f,0")
1723 
                         (match_operand:SF 3 "register_operand" "0,r,0,f")))]
1724 
  ""
1725 
{
1726 
  switch (which_alternative)
1727 
    {
1728 
    case 0:
1729 
      switch (GET_CODE (operands[4]))
1730 
        {
1731 
        case EQ:        return "moveqz\t%0, %2, %1";
1732 
        case NE:        return "movnez\t%0, %2, %1";
1733 
        case LT:        return "movltz\t%0, %2, %1";
1734 
        case GE:        return "movgez\t%0, %2, %1";
1735 
        default:        gcc_unreachable ();
1736 
        }
1737 
      break;
1738 
    case 1:
1739 
      switch (GET_CODE (operands[4]))
1740 
        {
1741 
        case EQ:        return "movnez\t%0, %3, %1";
1742 
        case NE:        return "moveqz\t%0, %3, %1";
1743 
        case LT:        return "movgez\t%0, %3, %1";
1744 
        case GE:        return "movltz\t%0, %3, %1";
1745 
        default:        gcc_unreachable ();
1746 
        }
1747 
      break;
1748 
    case 2:
1749 
      switch (GET_CODE (operands[4]))
1750 
        {
1751 
        case EQ:        return "moveqz.s %0, %2, %1";
1752 
        case NE:        return "movnez.s %0, %2, %1";
1753 
        case LT:        return "movltz.s %0, %2, %1";
1754 
        case GE:        return "movgez.s %0, %2, %1";
1755 
        default:        gcc_unreachable ();
1756 
        }
1757 
      break;
1758 
    case 3:
1759 
      switch (GET_CODE (operands[4]))
1760 
        {
1761 
        case EQ:        return "movnez.s %0, %3, %1";
1762 
        case NE:        return "moveqz.s %0, %3, %1";
1763 
        case LT:        return "movgez.s %0, %3, %1";
1764 
        case GE:        return "movltz.s %0, %3, %1";
1765 
        default:        gcc_unreachable ();
1766 
        }
1767 
      break;
1768 
    default:
1769 
      gcc_unreachable ();
1770 
    }
1771 
  gcc_unreachable ();
1772 
}
1773 
  [(set_attr "type"     "move,move,move,move")
1774 
   (set_attr "mode"     "SF")
1775 
   (set_attr "length"   "3,3,3,3")])
1776 
 
1777 
(define_insn "movsfcc_internal1"
1778 
  [(set (match_operand:SF 0 "register_operand" "=a,a,f,f")
1779 
        (if_then_else:SF (match_operator 4 "boolean_operator"
1780 
                           [(match_operand:CC 1 "register_operand" "b,b,b,b")
1781 
                            (const_int 0)])
1782 
                         (match_operand:SF 2 "register_operand" "r,0,f,0")
1783 
                         (match_operand:SF 3 "register_operand" "0,r,0,f")))]
1784 
  "TARGET_BOOLEANS"
1785 
{
1786 
  int isEq = (GET_CODE (operands[4]) == EQ);
1787 
  switch (which_alternative)
1788 
    {
1789 
    case 0:
1790 
      if (isEq) return "movf\t%0, %2, %1";
1791 
      return "movt\t%0, %2, %1";
1792 
    case 1:
1793 
      if (isEq) return "movt\t%0, %3, %1";
1794 
      return "movf\t%0, %3, %1";
1795 
    case 2:
1796 
      if (isEq) return "movf.s\t%0, %2, %1";
1797 
      return "movt.s\t%0, %2, %1";
1798 
    case 3:
1799 
      if (isEq) return "movt.s\t%0, %3, %1";
1800 
      return "movf.s\t%0, %3, %1";
1801 
    default:
1802 
      gcc_unreachable ();
1803 
    }
1804 
}
1805 
  [(set_attr "type"     "move,move,move,move")
1806 
   (set_attr "mode"     "SF")
1807 
   (set_attr "length"   "3,3,3,3")])
1808 
 
1809 
 
1810 
;; Floating-point comparisons.
1811 
 
1812 
(define_insn "seq_sf"
1813 
  [(set (match_operand:CC 0 "register_operand" "=b")
1814 
        (eq:CC (match_operand:SF 1 "register_operand" "f")
1815 
               (match_operand:SF 2 "register_operand" "f")))]
1816 
  "TARGET_HARD_FLOAT"
1817 
  "oeq.s\t%0, %1, %2"
1818 
  [(set_attr "type"     "farith")
1819 
   (set_attr "mode"     "BL")
1820 
   (set_attr "length"   "3")])
1821 
 
1822 
(define_insn "slt_sf"
1823 
  [(set (match_operand:CC 0 "register_operand" "=b")
1824 
        (lt:CC (match_operand:SF 1 "register_operand" "f")
1825 
               (match_operand:SF 2 "register_operand" "f")))]
1826 
  "TARGET_HARD_FLOAT"
1827 
  "olt.s\t%0, %1, %2"
1828 
  [(set_attr "type"     "farith")
1829 
   (set_attr "mode"     "BL")
1830 
   (set_attr "length"   "3")])
1831 
 
1832 
(define_insn "sle_sf"
1833 
  [(set (match_operand:CC 0 "register_operand" "=b")
1834 
        (le:CC (match_operand:SF 1 "register_operand" "f")
1835 
               (match_operand:SF 2 "register_operand" "f")))]
1836 
  "TARGET_HARD_FLOAT"
1837 
  "ole.s\t%0, %1, %2"
1838 
  [(set_attr "type"     "farith")
1839 
   (set_attr "mode"     "BL")
1840 
   (set_attr "length"   "3")])
1841 
 
1842 
 
1843 
;; Unconditional branches.
1844 
 
1845 
(define_insn "jump"
1846 
  [(set (pc)
1847 
        (label_ref (match_operand 0 "" "")))]
1848 
  ""
1849 
  "j\t%l0"
1850 
  [(set_attr "type"     "jump")
1851 
   (set_attr "mode"     "none")
1852 
   (set_attr "length"   "3")])
1853 
 
1854 
(define_expand "indirect_jump"
1855 
  [(set (pc)
1856 
        (match_operand 0 "register_operand" ""))]
1857 
  ""
1858 
{
1859 
  rtx dest = operands[0];
1860 
  if (GET_CODE (dest) != REG || GET_MODE (dest) != Pmode)
1861 
    operands[0] = copy_to_mode_reg (Pmode, dest);
1862 
 
1863 
  emit_jump_insn (gen_indirect_jump_internal (dest));
1864 
  DONE;
1865 
})
1866 
 
1867 
(define_insn "indirect_jump_internal"
1868 
  [(set (pc) (match_operand:SI 0 "register_operand" "r"))]
1869 
  ""
1870 
  "jx\t%0"
1871 
  [(set_attr "type"     "jump")
1872 
   (set_attr "mode"     "none")
1873 
   (set_attr "length"   "3")])
1874 
 
1875 
 
1876 
(define_expand "tablejump"
1877 
  [(use (match_operand:SI 0 "register_operand" ""))
1878 
   (use (label_ref (match_operand 1 "" "")))]
1879 
   ""
1880 
{
1881 
  rtx target = operands[0];
1882 
  if (flag_pic)
1883 
    {
1884 
      /* For PIC, the table entry is relative to the start of the table.  */
1885 
      rtx label = gen_reg_rtx (SImode);
1886 
      target = gen_reg_rtx (SImode);
1887 
      emit_move_insn (label, gen_rtx_LABEL_REF (SImode, operands[1]));
1888 
      emit_insn (gen_addsi3 (target, operands[0], label));
1889 
    }
1890 
  emit_jump_insn (gen_tablejump_internal (target, operands[1]));
1891 
  DONE;
1892 
})
1893 
 
1894 
(define_insn "tablejump_internal"
1895 
  [(set (pc)
1896 
        (match_operand:SI 0 "register_operand" "r"))
1897 
   (use (label_ref (match_operand 1 "" "")))]
1898 
  ""
1899 
  "jx\t%0"
1900 
  [(set_attr "type"     "jump")
1901 
   (set_attr "mode"     "none")
1902 
   (set_attr "length"   "3")])
1903 
 
1904 
 
1905 
;; Function calls.
1906 
 
1907 
(define_expand "sym_PLT"
1908 
  [(const (unspec [(match_operand:SI 0 "" "")] UNSPEC_PLT))]
1909 
  ""
1910 
  "")
1911 
 
1912 
(define_expand "call"
1913 
  [(call (match_operand 0 "memory_operand" "")
1914 
         (match_operand 1 "" ""))]
1915 
  ""
1916 
{
1917 
  rtx addr = XEXP (operands[0], 0);
1918 
  if (flag_pic && GET_CODE (addr) == SYMBOL_REF
1919 
      && (!SYMBOL_REF_LOCAL_P (addr) || SYMBOL_REF_EXTERNAL_P (addr)))
1920 
    addr = gen_sym_PLT (addr);
1921 
  if (!call_insn_operand (addr, VOIDmode))
1922 
    XEXP (operands[0], 0) = copy_to_mode_reg (Pmode, addr);
1923 
})
1924 
 
1925 
(define_insn "call_internal"
1926 
  [(call (mem (match_operand:SI 0 "call_insn_operand" "n,i,r"))
1927 
         (match_operand 1 "" "i,i,i"))]
1928 
  ""
1929 
{
1930 
  return xtensa_emit_call (0, operands);
1931 
}
1932 
  [(set_attr "type"     "call")
1933 
   (set_attr "mode"     "none")
1934 
   (set_attr "length"   "3")])
1935 
 
1936 
(define_expand "call_value"
1937 
  [(set (match_operand 0 "register_operand" "")
1938 
        (call (match_operand 1 "memory_operand" "")
1939 
              (match_operand 2 "" "")))]
1940 
  ""
1941 
{
1942 
  rtx addr = XEXP (operands[1], 0);
1943 
  if (flag_pic && GET_CODE (addr) == SYMBOL_REF
1944 
      && (!SYMBOL_REF_LOCAL_P (addr) || SYMBOL_REF_EXTERNAL_P (addr)))
1945 
    addr = gen_sym_PLT (addr);
1946 
  if (!call_insn_operand (addr, VOIDmode))
1947 
    XEXP (operands[1], 0) = copy_to_mode_reg (Pmode, addr);
1948 
})
1949 
 
1950 
;; Cannot combine constraints for operand 0 into "afvb":
1951 
;; reload.c:find_reloads seems to assume that grouped constraints somehow
1952 
;; specify related register classes, and when they don't the constraints
1953 
;; fail to match.  By not grouping the constraints, we get the correct
1954 
;; behavior.
1955 
(define_insn "call_value_internal"
1956 
   [(set (match_operand 0 "register_operand" "=af,af,af,v,v,v,b,b,b")
1957 
         (call (mem (match_operand:SI 1 "call_insn_operand"
1958 
                                        "n,i,r,n,i,r,n,i,r"))
1959 
               (match_operand 2 "" "i,i,i,i,i,i,i,i,i")))]
1960 
  ""
1961 
{
1962 
  return xtensa_emit_call (1, operands);
1963 
}
1964 
  [(set_attr "type"     "call")
1965 
   (set_attr "mode"     "none")
1966 
   (set_attr "length"   "3")])
1967 
 
1968 
(define_insn "entry"
1969 
  [(set (reg:SI A1_REG)
1970 
        (unspec_volatile:SI [(match_operand:SI 0 "const_int_operand" "i")
1971 
                             (match_operand:SI 1 "const_int_operand" "i")]
1972 
                            UNSPECV_ENTRY))]
1973 
  ""
1974 
{
1975 
  if (frame_pointer_needed)
1976 
    output_asm_insn (".frame\ta7, %0", operands);
1977 
  else
1978 
    output_asm_insn (".frame\tsp, %0", operands);
1979 
  return "entry\tsp, %1";
1980 
}
1981 
  [(set_attr "type"     "move")
1982 
   (set_attr "mode"     "SI")
1983 
   (set_attr "length"   "3")])
1984 
 
1985 
(define_insn "return"
1986 
  [(return)
1987 
   (use (reg:SI A0_REG))]
1988 
  "reload_completed"
1989 
{
1990 
  return (TARGET_DENSITY ? "retw.n" : "retw");
1991 
}
1992 
  [(set_attr "type"     "jump")
1993 
   (set_attr "mode"     "none")
1994 
   (set_attr "length"   "2")])
1995 
 
1996 
 
1997 
;; Miscellaneous instructions.
1998 
 
1999 
(define_expand "prologue"
2000 
  [(const_int 0)]
2001 
  ""
2002 
{
2003 
  xtensa_expand_prologue ();
2004 
  DONE;
2005 
})
2006 
 
2007 
(define_expand "epilogue"
2008 
  [(return)]
2009 
  ""
2010 
{
2011 
  emit_jump_insn (gen_return ());
2012 
  DONE;
2013 
})
2014 
 
2015 
(define_insn "nop"
2016 
  [(const_int 0)]
2017 
  ""
2018 
{
2019 
  return (TARGET_DENSITY ? "nop.n" : "nop");
2020 
}
2021 
  [(set_attr "type"     "nop")
2022 
   (set_attr "mode"     "none")
2023 
   (set_attr "length"   "3")])
2024 
 
2025 
(define_expand "nonlocal_goto"
2026 
  [(match_operand:SI 0 "general_operand" "")
2027 
   (match_operand:SI 1 "general_operand" "")
2028 
   (match_operand:SI 2 "general_operand" "")
2029 
   (match_operand:SI 3 "" "")]
2030 
  ""
2031 
{
2032 
  xtensa_expand_nonlocal_goto (operands);
2033 
  DONE;
2034 
})
2035 
 
2036 
;; Setting up a frame pointer is tricky for Xtensa because GCC doesn't
2037 
;; know if a frame pointer is required until the reload pass, and
2038 
;; because there may be an incoming argument value in the hard frame
2039 
;; pointer register (a7).  If there is an incoming argument in that
2040 
;; register, the "set_frame_ptr" insn gets inserted immediately after
2041 
;; the insn that copies the incoming argument to a pseudo or to the
2042 
;; stack.  This serves several purposes here: (1) it keeps the
2043 
;; optimizer from copy-propagating or scheduling the use of a7 as an
2044 
;; incoming argument away from the beginning of the function; (2) we
2045 
;; can use a post-reload splitter to expand away the insn if a frame
2046 
;; pointer is not required, so that the post-reload scheduler can do
2047 
;; the right thing; and (3) it makes it easy for the prologue expander
2048 
;; to search for this insn to determine whether it should add a new insn
2049 
;; to set up the frame pointer.
2050 
 
2051 
(define_insn "set_frame_ptr"
2052 
  [(set (reg:SI A7_REG) (unspec_volatile:SI [(const_int 0)] UNSPECV_SET_FP))]
2053 
  ""
2054 
{
2055 
  if (frame_pointer_needed)
2056 
    return "mov\ta7, sp";
2057 
  return "";
2058 
}
2059 
  [(set_attr "type"     "move")
2060 
   (set_attr "mode"     "SI")
2061 
   (set_attr "length"   "3")])
2062 
 
2063 
;; Post-reload splitter to remove fp assignment when it's not needed.
2064 
(define_split
2065 
  [(set (reg:SI A7_REG) (unspec_volatile:SI [(const_int 0)] UNSPECV_SET_FP))]
2066 
  "reload_completed && !frame_pointer_needed"
2067 
  [(unspec [(const_int 0)] UNSPEC_NOP)]
2068 
  "")
2069 
 
2070 
;; The preceding splitter needs something to split the insn into;
2071 
;; things start breaking if the result is just a "use" so instead we
2072 
;; generate the following insn.
2073 
(define_insn "*unspec_nop"
2074 
  [(unspec [(const_int 0)] UNSPEC_NOP)]
2075 
  ""
2076 
  ""
2077 
  [(set_attr "type"     "nop")
2078 
   (set_attr "mode"     "none")
2079 
   (set_attr "length"   "0")])
2080 
 
2081 
;; The fix_return_addr pattern sets the high 2 bits of an address in a
2082 
;; register to match the high bits of the current PC.
2083 
(define_insn "fix_return_addr"
2084 
  [(set (match_operand:SI 0 "register_operand" "=a")
2085 
        (unspec:SI [(match_operand:SI 1 "register_operand" "r")]
2086 
                   UNSPEC_RET_ADDR))
2087 
   (clobber (match_scratch:SI 2 "=r"))
2088 
   (clobber (match_scratch:SI 3 "=r"))]
2089 
  ""
2090 
  "mov\t%2, a0\;call0\t0f\;.align\t4\;0:\;mov\t%3, a0\;mov\ta0, %2\;\
2091 
srli\t%3, %3, 30\;slli\t%0, %1, 2\;ssai\t2\;src\t%0, %3, %0"
2092 
  [(set_attr "type"     "multi")
2093 
   (set_attr "mode"     "SI")
2094 
   (set_attr "length"   "24")])
2095 
 
2096 
 
2097 
;; Instructions for the Xtensa "boolean" option.
2098 
 
2099 
(define_insn "*booltrue"
2100 
  [(set (pc)
2101 
        (if_then_else (match_operator 2 "boolean_operator"
2102 
                         [(match_operand:CC 0 "register_operand" "b")
2103 
                          (const_int 0)])
2104 
                      (label_ref (match_operand 1 "" ""))
2105 
                      (pc)))]
2106 
  "TARGET_BOOLEANS"
2107 
{
2108 
  if (GET_CODE (operands[2]) == EQ)
2109 
    return "bf\t%0, %1";
2110 
  else
2111 
    return "bt\t%0, %1";
2112 
}
2113 
  [(set_attr "type"     "jump")
2114 
   (set_attr "mode"     "none")
2115 
   (set_attr "length"   "3")])
2116 
 
2117 
(define_insn "*boolfalse"
2118 
  [(set (pc)
2119 
        (if_then_else (match_operator 2 "boolean_operator"
2120 
                         [(match_operand:CC 0 "register_operand" "b")
2121 
                          (const_int 0)])
2122 
                      (pc)
2123 
                      (label_ref (match_operand 1 "" ""))))]
2124 
  "TARGET_BOOLEANS"
2125 
{
2126 
  if (GET_CODE (operands[2]) == EQ)
2127 
    return "bt\t%0, %1";
2128 
  else
2129 
    return "bf\t%0, %1";
2130 
}
2131 
  [(set_attr "type"     "jump")
2132 
   (set_attr "mode"     "none")
2133 
   (set_attr "length"   "3")])

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