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1 282 jeremybenn 
;; GCC machine description for Tensilica's Xtensa architecture.
2 
;; Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
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_NOP           2)
30 
  (UNSPEC_PLT           3)
31 
  (UNSPEC_RET_ADDR      4)
32 
  (UNSPEC_TPOFF         5)
33 
  (UNSPEC_DTPOFF        6)
34 
  (UNSPEC_TLS_FUNC      7)
35 
  (UNSPEC_TLS_ARG       8)
36 
  (UNSPEC_TLS_CALL      9)
37 
  (UNSPEC_TP            10)
38 
  (UNSPEC_MEMW          11)
39 
 
40 
  (UNSPECV_SET_FP       1)
41 
  (UNSPECV_ENTRY        2)
42 
  (UNSPECV_S32RI        4)
43 
  (UNSPECV_S32C1I       5)
44 
  (UNSPECV_EH_RETURN    6)
45 
  (UNSPECV_SET_TP       7)
46 
])
47 
 
48 
;; This code iterator allows signed and unsigned widening multiplications
49 
;; to use the same template.
50 
(define_code_iterator any_extend [sign_extend zero_extend])
51 
 
52 
;;  expands to an empty string when doing a signed operation and
53 
;; "u" when doing an unsigned operation.
54 
(define_code_attr u [(sign_extend "") (zero_extend "u")])
55 
 
56 
;;  is like , but the signed form expands to "s" rather than "".
57 
(define_code_attr su [(sign_extend "s") (zero_extend "u")])
58 
 
59 
;; This code iterator allows four integer min/max operations to be
60 
;; generated from one template.
61 
(define_code_iterator any_minmax [smin umin smax umax])
62 
 
63 
;;  expands to the opcode name for any_minmax operations.
64 
(define_code_attr minmax [(smin "min") (umin "minu")
65 
                          (smax "max") (umax "maxu")])
66 
 
67 
;; This code iterator is for floating-point comparisons.
68 
(define_code_iterator any_scc_sf [eq lt le uneq unlt unle unordered])
69 
(define_code_attr scc_sf [(eq "oeq") (lt "olt") (le "ole")
70 
                          (uneq "ueq") (unlt "ult") (unle "ule")
71 
                          (unordered "un")])
72 
 
73 
;; This iterator and attribute allow to combine most atomic operations.
74 
(define_code_iterator ATOMIC [and ior xor plus minus mult])
75 
(define_code_attr atomic [(and "and") (ior "ior") (xor "xor")
76 
                          (plus "add") (minus "sub") (mult "nand")])
77 
 
78 
;; This mode iterator allows the HI and QI patterns to be defined from
79 
;; the same template.
80 
(define_mode_iterator HQI [HI QI])
81 
 
82 
 
83 
;; Attributes.
84 
 
85 
(define_attr "type"
86 
  "unknown,jump,call,load,store,move,arith,multi,nop,farith,fmadd,fdiv,fsqrt,fconv,fload,fstore,mul16,mul32,div32,mac16,rsr,wsr,entry"
87 
  (const_string "unknown"))
88 
 
89 
(define_attr "mode"
90 
  "unknown,none,QI,HI,SI,DI,SF,DF,BL"
91 
  (const_string "unknown"))
92 
 
93 
(define_attr "length" "" (const_int 1))
94 
 
95 
;; Describe a user's asm statement.
96 
(define_asm_attributes
97 
  [(set_attr "type" "multi")])
98 
 
99 
 
100 
;; Pipeline model.
101 
 
102 
;; The Xtensa basically has simple 5-stage RISC pipeline.
103 
;; Most instructions complete in 1 cycle, and it is OK to assume that
104 
;; everything is fully pipelined.  The exceptions have special insn
105 
;; reservations in the pipeline description below.  The Xtensa can
106 
;; issue one instruction per cycle, so defining CPU units is unnecessary.
107 
 
108 
(define_insn_reservation "xtensa_any_insn" 1
109 
                         (eq_attr "type" "!load,fload,rsr,mul16,mul32,fmadd,fconv")
110 
                         "nothing")
111 
 
112 
(define_insn_reservation "xtensa_memory" 2
113 
                         (eq_attr "type" "load,fload")
114 
                         "nothing")
115 
 
116 
(define_insn_reservation "xtensa_sreg" 2
117 
                         (eq_attr "type" "rsr")
118 
                         "nothing")
119 
 
120 
(define_insn_reservation "xtensa_mul16" 2
121 
                         (eq_attr "type" "mul16")
122 
                         "nothing")
123 
 
124 
(define_insn_reservation "xtensa_mul32" 2
125 
                         (eq_attr "type" "mul32")
126 
                         "nothing")
127 
 
128 
(define_insn_reservation "xtensa_fmadd" 4
129 
                         (eq_attr "type" "fmadd")
130 
                         "nothing")
131 
 
132 
(define_insn_reservation "xtensa_fconv" 2
133 
                         (eq_attr "type" "fconv")
134 
                         "nothing")
135 
 
136 
;; Include predicates and constraints.
137 
 
138 
(include "predicates.md")
139 
(include "constraints.md")
140 
 
141 
 
142 
;; Addition.
143 
 
144 
(define_insn "addsi3"
145 
  [(set (match_operand:SI 0 "register_operand" "=D,D,a,a,a")
146 
        (plus:SI (match_operand:SI 1 "register_operand" "%d,d,r,r,r")
147 
                 (match_operand:SI 2 "add_operand" "d,O,r,J,N")))]
148 
  ""
149 
  "@
150 
   add.n\t%0, %1, %2
151 
   addi.n\t%0, %1, %d2
152 
   add\t%0, %1, %2
153 
   addi\t%0, %1, %d2
154 
   addmi\t%0, %1, %x2"
155 
  [(set_attr "type"     "arith,arith,arith,arith,arith")
156 
   (set_attr "mode"     "SI")
157 
   (set_attr "length"   "2,2,3,3,3")])
158 
 
159 
(define_insn "*addx"
160 
  [(set (match_operand:SI 0 "register_operand" "=a")
161 
        (plus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")
162 
                          (match_operand:SI 3 "addsubx_operand" "i"))
163 
                 (match_operand:SI 2 "register_operand" "r")))]
164 
  "TARGET_ADDX"
165 
  "addx%3\t%0, %1, %2"
166 
  [(set_attr "type"     "arith")
167 
   (set_attr "mode"     "SI")
168 
   (set_attr "length"   "3")])
169 
 
170 
(define_insn "addsf3"
171 
  [(set (match_operand:SF 0 "register_operand" "=f")
172 
        (plus:SF (match_operand:SF 1 "register_operand" "%f")
173 
                 (match_operand:SF 2 "register_operand" "f")))]
174 
  "TARGET_HARD_FLOAT"
175 
  "add.s\t%0, %1, %2"
176 
  [(set_attr "type"     "fmadd")
177 
   (set_attr "mode"     "SF")
178 
   (set_attr "length"   "3")])
179 
 
180 
 
181 
;; Subtraction.
182 
 
183 
(define_insn "subsi3"
184 
  [(set (match_operand:SI 0 "register_operand" "=a")
185 
        (minus:SI (match_operand:SI 1 "register_operand" "r")
186 
                  (match_operand:SI 2 "register_operand" "r")))]
187 
  ""
188 
  "sub\t%0, %1, %2"
189 
  [(set_attr "type"     "arith")
190 
   (set_attr "mode"     "SI")
191 
   (set_attr "length"   "3")])
192 
 
193 
(define_insn "*subx"
194 
  [(set (match_operand:SI 0 "register_operand" "=a")
195 
        (minus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")
196 
                           (match_operand:SI 3 "addsubx_operand" "i"))
197 
                  (match_operand:SI 2 "register_operand" "r")))]
198 
  "TARGET_ADDX"
199 
  "subx%3\t%0, %1, %2"
200 
  [(set_attr "type"     "arith")
201 
   (set_attr "mode"     "SI")
202 
   (set_attr "length"   "3")])
203 
 
204 
(define_insn "subsf3"
205 
  [(set (match_operand:SF 0 "register_operand" "=f")
206 
        (minus:SF (match_operand:SF 1 "register_operand" "f")
207 
                  (match_operand:SF 2 "register_operand" "f")))]
208 
  "TARGET_HARD_FLOAT"
209 
  "sub.s\t%0, %1, %2"
210 
  [(set_attr "type"     "fmadd")
211 
   (set_attr "mode"     "SF")
212 
   (set_attr "length"   "3")])
213 
 
214 
 
215 
;; Multiplication.
216 
 
217 
(define_expand "mulsidi3"
218 
  [(set (match_operand:DI 0 "register_operand")
219 
        (mult:DI (any_extend:DI (match_operand:SI 1 "register_operand"))
220 
                 (any_extend:DI (match_operand:SI 2 "register_operand"))))]
221 
  "TARGET_MUL32_HIGH"
222 
{
223 
  rtx temp = gen_reg_rtx (SImode);
224 
  emit_insn (gen_mulsi3 (temp, operands[1], operands[2]));
225 
  emit_insn (gen_mulsi3_highpart (gen_highpart (SImode, operands[0]),
226 
                                     operands[1], operands[2]));
227 
  emit_insn (gen_movsi (gen_lowpart (SImode, operands[0]), temp));
228 
  DONE;
229 
})
230 
 
231 
(define_insn "mulsi3_highpart"
232 
  [(set (match_operand:SI 0 "register_operand" "=a")
233 
        (truncate:SI
234 
         (lshiftrt:DI
235 
          (mult:DI (any_extend:DI (match_operand:SI 1 "register_operand" "%r"))
236 
                   (any_extend:DI (match_operand:SI 2 "register_operand" "r")))
237 
          (const_int 32))))]
238 
  "TARGET_MUL32_HIGH"
239 
  "mulh\t%0, %1, %2"
240 
  [(set_attr "type"     "mul32")
241 
   (set_attr "mode"     "SI")
242 
   (set_attr "length"   "3")])
243 
 
244 
(define_insn "mulsi3"
245 
  [(set (match_operand:SI 0 "register_operand" "=a")
246 
        (mult:SI (match_operand:SI 1 "register_operand" "%r")
247 
                 (match_operand:SI 2 "register_operand" "r")))]
248 
  "TARGET_MUL32"
249 
  "mull\t%0, %1, %2"
250 
  [(set_attr "type"     "mul32")
251 
   (set_attr "mode"     "SI")
252 
   (set_attr "length"   "3")])
253 
 
254 
(define_insn "mulhisi3"
255 
  [(set (match_operand:SI 0 "register_operand" "=C,A")
256 
        (mult:SI (sign_extend:SI
257 
                  (match_operand:HI 1 "register_operand" "%r,r"))
258 
                 (sign_extend:SI
259 
                  (match_operand:HI 2 "register_operand" "r,r"))))]
260 
  "TARGET_MUL16 || TARGET_MAC16"
261 
  "@
262 
   mul16s\t%0, %1, %2
263 
   mul.aa.ll\t%1, %2"
264 
  [(set_attr "type"     "mul16,mac16")
265 
   (set_attr "mode"     "SI")
266 
   (set_attr "length"   "3,3")])
267 
 
268 
(define_insn "umulhisi3"
269 
  [(set (match_operand:SI 0 "register_operand" "=C,A")
270 
        (mult:SI (zero_extend:SI
271 
                  (match_operand:HI 1 "register_operand" "%r,r"))
272 
                 (zero_extend:SI
273 
                  (match_operand:HI 2 "register_operand" "r,r"))))]
274 
  "TARGET_MUL16 || TARGET_MAC16"
275 
  "@
276 
   mul16u\t%0, %1, %2
277 
   umul.aa.ll\t%1, %2"
278 
  [(set_attr "type"     "mul16,mac16")
279 
   (set_attr "mode"     "SI")
280 
   (set_attr "length"   "3,3")])
281 
 
282 
(define_insn "muladdhisi"
283 
  [(set (match_operand:SI 0 "register_operand" "=A")
284 
        (plus:SI (mult:SI (sign_extend:SI
285 
                           (match_operand:HI 1 "register_operand" "%r"))
286 
                          (sign_extend:SI
287 
                           (match_operand:HI 2 "register_operand" "r")))
288 
                 (match_operand:SI 3 "register_operand" "0")))]
289 
  "TARGET_MAC16"
290 
  "mula.aa.ll\t%1, %2"
291 
  [(set_attr "type"     "mac16")
292 
   (set_attr "mode"     "SI")
293 
   (set_attr "length"   "3")])
294 
 
295 
(define_insn "mulsubhisi"
296 
  [(set (match_operand:SI 0 "register_operand" "=A")
297 
        (minus:SI (match_operand:SI 1 "register_operand" "0")
298 
                  (mult:SI (sign_extend:SI
299 
                            (match_operand:HI 2 "register_operand" "%r"))
300 
                           (sign_extend:SI
301 
                            (match_operand:HI 3 "register_operand" "r")))))]
302 
  "TARGET_MAC16"
303 
  "muls.aa.ll\t%2, %3"
304 
  [(set_attr "type"     "mac16")
305 
   (set_attr "mode"     "SI")
306 
   (set_attr "length"   "3")])
307 
 
308 
(define_insn "mulsf3"
309 
  [(set (match_operand:SF 0 "register_operand" "=f")
310 
        (mult:SF (match_operand:SF 1 "register_operand" "%f")
311 
                 (match_operand:SF 2 "register_operand" "f")))]
312 
  "TARGET_HARD_FLOAT"
313 
  "mul.s\t%0, %1, %2"
314 
  [(set_attr "type"     "fmadd")
315 
   (set_attr "mode"     "SF")
316 
   (set_attr "length"   "3")])
317 
 
318 
(define_insn "muladdsf3"
319 
  [(set (match_operand:SF 0 "register_operand" "=f")
320 
        (plus:SF (mult:SF (match_operand:SF 1 "register_operand" "%f")
321 
                          (match_operand:SF 2 "register_operand" "f"))
322 
                 (match_operand:SF 3 "register_operand" "0")))]
323 
  "TARGET_HARD_FLOAT && TARGET_FUSED_MADD"
324 
  "madd.s\t%0, %1, %2"
325 
  [(set_attr "type"     "fmadd")
326 
   (set_attr "mode"     "SF")
327 
   (set_attr "length"   "3")])
328 
 
329 
(define_insn "mulsubsf3"
330 
  [(set (match_operand:SF 0 "register_operand" "=f")
331 
        (minus:SF (match_operand:SF 1 "register_operand" "0")
332 
                  (mult:SF (match_operand:SF 2 "register_operand" "%f")
333 
                           (match_operand:SF 3 "register_operand" "f"))))]
334 
  "TARGET_HARD_FLOAT && TARGET_FUSED_MADD"
335 
  "msub.s\t%0, %2, %3"
336 
  [(set_attr "type"     "fmadd")
337 
   (set_attr "mode"     "SF")
338 
   (set_attr "length"   "3")])
339 
 
340 
 
341 
;; Division.
342 
 
343 
(define_insn "divsi3"
344 
  [(set (match_operand:SI 0 "register_operand" "=a")
345 
        (div:SI (match_operand:SI 1 "register_operand" "r")
346 
                (match_operand:SI 2 "register_operand" "r")))]
347 
  "TARGET_DIV32"
348 
  "quos\t%0, %1, %2"
349 
  [(set_attr "type"     "div32")
350 
   (set_attr "mode"     "SI")
351 
   (set_attr "length"   "3")])
352 
 
353 
(define_insn "udivsi3"
354 
  [(set (match_operand:SI 0 "register_operand" "=a")
355 
        (udiv:SI (match_operand:SI 1 "register_operand" "r")
356 
                 (match_operand:SI 2 "register_operand" "r")))]
357 
  "TARGET_DIV32"
358 
  "quou\t%0, %1, %2"
359 
  [(set_attr "type"     "div32")
360 
   (set_attr "mode"     "SI")
361 
   (set_attr "length"   "3")])
362 
 
363 
(define_insn "divsf3"
364 
  [(set (match_operand:SF 0 "register_operand" "=f")
365 
        (div:SF (match_operand:SF 1 "register_operand" "f")
366 
                (match_operand:SF 2 "register_operand" "f")))]
367 
  "TARGET_HARD_FLOAT_DIV"
368 
  "div.s\t%0, %1, %2"
369 
  [(set_attr "type"     "fdiv")
370 
   (set_attr "mode"     "SF")
371 
   (set_attr "length"   "3")])
372 
 
373 
(define_insn "*recipsf2"
374 
  [(set (match_operand:SF 0 "register_operand" "=f")
375 
        (div:SF (match_operand:SF 1 "const_float_1_operand" "")
376 
                (match_operand:SF 2 "register_operand" "f")))]
377 
  "TARGET_HARD_FLOAT_RECIP && flag_unsafe_math_optimizations"
378 
  "recip.s\t%0, %2"
379 
  [(set_attr "type"     "fdiv")
380 
   (set_attr "mode"     "SF")
381 
   (set_attr "length"   "3")])
382 
 
383 
 
384 
;; Remainders.
385 
 
386 
(define_insn "modsi3"
387 
  [(set (match_operand:SI 0 "register_operand" "=a")
388 
        (mod:SI (match_operand:SI 1 "register_operand" "r")
389 
                (match_operand:SI 2 "register_operand" "r")))]
390 
  "TARGET_DIV32"
391 
  "rems\t%0, %1, %2"
392 
  [(set_attr "type"     "div32")
393 
   (set_attr "mode"     "SI")
394 
   (set_attr "length"   "3")])
395 
 
396 
(define_insn "umodsi3"
397 
  [(set (match_operand:SI 0 "register_operand" "=a")
398 
        (umod:SI (match_operand:SI 1 "register_operand" "r")
399 
                 (match_operand:SI 2 "register_operand" "r")))]
400 
  "TARGET_DIV32"
401 
  "remu\t%0, %1, %2"
402 
  [(set_attr "type"     "div32")
403 
   (set_attr "mode"     "SI")
404 
   (set_attr "length"   "3")])
405 
 
406 
 
407 
;; Square roots.
408 
 
409 
(define_insn "sqrtsf2"
410 
  [(set (match_operand:SF 0 "register_operand" "=f")
411 
        (sqrt:SF (match_operand:SF 1 "register_operand" "f")))]
412 
  "TARGET_HARD_FLOAT_SQRT"
413 
  "sqrt.s\t%0, %1"
414 
  [(set_attr "type"     "fsqrt")
415 
   (set_attr "mode"     "SF")
416 
   (set_attr "length"   "3")])
417 
 
418 
(define_insn "*rsqrtsf2"
419 
  [(set (match_operand:SF 0 "register_operand" "=f")
420 
        (div:SF (match_operand:SF 1 "const_float_1_operand" "")
421 
                (sqrt:SF (match_operand:SF 2 "register_operand" "f"))))]
422 
  "TARGET_HARD_FLOAT_RSQRT && flag_unsafe_math_optimizations"
423 
  "rsqrt.s\t%0, %2"
424 
  [(set_attr "type"     "fsqrt")
425 
   (set_attr "mode"     "SF")
426 
   (set_attr "length"   "3")])
427 
 
428 
 
429 
;; Absolute value.
430 
 
431 
(define_insn "abssi2"
432 
  [(set (match_operand:SI 0 "register_operand" "=a")
433 
        (abs:SI (match_operand:SI 1 "register_operand" "r")))]
434 
  "TARGET_ABS"
435 
  "abs\t%0, %1"
436 
  [(set_attr "type"     "arith")
437 
   (set_attr "mode"     "SI")
438 
   (set_attr "length"   "3")])
439 
 
440 
(define_insn "abssf2"
441 
  [(set (match_operand:SF 0 "register_operand" "=f")
442 
        (abs:SF (match_operand:SF 1 "register_operand" "f")))]
443 
  "TARGET_HARD_FLOAT"
444 
  "abs.s\t%0, %1"
445 
  [(set_attr "type"     "farith")
446 
   (set_attr "mode"     "SF")
447 
   (set_attr "length"   "3")])
448 
 
449 
 
450 
;; Min and max.
451 
 
452 
(define_insn "si3"
453 
  [(set (match_operand:SI 0 "register_operand" "=a")
454 
        (any_minmax:SI (match_operand:SI 1 "register_operand" "%r")
455 
                       (match_operand:SI 2 "register_operand" "r")))]
456 
  "TARGET_MINMAX"
457 
  "\t%0, %1, %2"
458 
  [(set_attr "type"     "arith")
459 
   (set_attr "mode"     "SI")
460 
   (set_attr "length"   "3")])
461 
 
462 
 
463 
;; Count leading/trailing zeros and find first bit.
464 
 
465 
(define_insn "clzsi2"
466 
  [(set (match_operand:SI 0 "register_operand" "=a")
467 
        (clz:SI (match_operand:SI 1 "register_operand" "r")))]
468 
  "TARGET_NSA"
469 
  "nsau\t%0, %1"
470 
  [(set_attr "type"     "arith")
471 
   (set_attr "mode"     "SI")
472 
   (set_attr "length"   "3")])
473 
 
474 
(define_expand "ctzsi2"
475 
  [(set (match_operand:SI 0 "register_operand" "")
476 
        (ctz:SI (match_operand:SI 1 "register_operand" "")))]
477 
  "TARGET_NSA"
478 
{
479 
  rtx temp = gen_reg_rtx (SImode);
480 
  emit_insn (gen_negsi2 (temp, operands[1]));
481 
  emit_insn (gen_andsi3 (temp, temp, operands[1]));
482 
  emit_insn (gen_clzsi2 (temp, temp));
483 
  emit_insn (gen_negsi2 (temp, temp));
484 
  emit_insn (gen_addsi3 (operands[0], temp, GEN_INT (31)));
485 
  DONE;
486 
})
487 
 
488 
(define_expand "ffssi2"
489 
  [(set (match_operand:SI 0 "register_operand" "")
490 
        (ffs:SI (match_operand:SI 1 "register_operand" "")))]
491 
  "TARGET_NSA"
492 
{
493 
  rtx temp = gen_reg_rtx (SImode);
494 
  emit_insn (gen_negsi2 (temp, operands[1]));
495 
  emit_insn (gen_andsi3 (temp, temp, operands[1]));
496 
  emit_insn (gen_clzsi2 (temp, temp));
497 
  emit_insn (gen_negsi2 (temp, temp));
498 
  emit_insn (gen_addsi3 (operands[0], temp, GEN_INT (32)));
499 
  DONE;
500 
})
501 
 
502 
 
503 
;; Negation and one's complement.
504 
 
505 
(define_insn "negsi2"
506 
  [(set (match_operand:SI 0 "register_operand" "=a")
507 
        (neg:SI (match_operand:SI 1 "register_operand" "r")))]
508 
  ""
509 
  "neg\t%0, %1"
510 
  [(set_attr "type"     "arith")
511 
   (set_attr "mode"     "SI")
512 
   (set_attr "length"   "3")])
513 
 
514 
(define_expand "one_cmplsi2"
515 
  [(set (match_operand:SI 0 "register_operand" "")
516 
        (not:SI (match_operand:SI 1 "register_operand" "")))]
517 
  ""
518 
{
519 
  rtx temp = gen_reg_rtx (SImode);
520 
  emit_insn (gen_movsi (temp, constm1_rtx));
521 
  emit_insn (gen_xorsi3 (operands[0], temp, operands[1]));
522 
  DONE;
523 
})
524 
 
525 
(define_insn "negsf2"
526 
  [(set (match_operand:SF 0 "register_operand" "=f")
527 
        (neg:SF (match_operand:SF 1 "register_operand" "f")))]
528 
  "TARGET_HARD_FLOAT"
529 
  "neg.s\t%0, %1"
530 
  [(set_attr "type"     "farith")
531 
   (set_attr "mode"     "SF")
532 
   (set_attr "length"   "3")])
533 
 
534 
 
535 
;; Logical instructions.
536 
 
537 
(define_insn "andsi3"
538 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
539 
        (and:SI (match_operand:SI 1 "register_operand" "%r,r")
540 
                (match_operand:SI 2 "mask_operand" "P,r")))]
541 
  ""
542 
  "@
543 
   extui\t%0, %1, 0, %K2
544 
   and\t%0, %1, %2"
545 
  [(set_attr "type"     "arith,arith")
546 
   (set_attr "mode"     "SI")
547 
   (set_attr "length"   "3,3")])
548 
 
549 
(define_insn "iorsi3"
550 
  [(set (match_operand:SI 0 "register_operand" "=a")
551 
        (ior:SI (match_operand:SI 1 "register_operand" "%r")
552 
                (match_operand:SI 2 "register_operand" "r")))]
553 
  ""
554 
  "or\t%0, %1, %2"
555 
  [(set_attr "type"     "arith")
556 
   (set_attr "mode"     "SI")
557 
   (set_attr "length"   "3")])
558 
 
559 
(define_insn "xorsi3"
560 
  [(set (match_operand:SI 0 "register_operand" "=a")
561 
        (xor:SI (match_operand:SI 1 "register_operand" "%r")
562 
                (match_operand:SI 2 "register_operand" "r")))]
563 
  ""
564 
  "xor\t%0, %1, %2"
565 
  [(set_attr "type"     "arith")
566 
   (set_attr "mode"     "SI")
567 
   (set_attr "length"   "3")])
568 
 
569 
 
570 
;; Zero-extend instructions.
571 
 
572 
(define_insn "zero_extendhisi2"
573 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
574 
        (zero_extend:SI (match_operand:HI 1 "nonimmed_operand" "r,U")))]
575 
  ""
576 
  "@
577 
   extui\t%0, %1, 0, 16
578 
   l16ui\t%0, %1"
579 
  [(set_attr "type"     "arith,load")
580 
   (set_attr "mode"     "SI")
581 
   (set_attr "length"   "3,3")])
582 
 
583 
(define_insn "zero_extendqisi2"
584 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
585 
        (zero_extend:SI (match_operand:QI 1 "nonimmed_operand" "r,U")))]
586 
  ""
587 
  "@
588 
   extui\t%0, %1, 0, 8
589 
   l8ui\t%0, %1"
590 
  [(set_attr "type"     "arith,load")
591 
   (set_attr "mode"     "SI")
592 
   (set_attr "length"   "3,3")])
593 
 
594 
 
595 
;; Sign-extend instructions.
596 
 
597 
(define_expand "extendhisi2"
598 
  [(set (match_operand:SI 0 "register_operand" "")
599 
        (sign_extend:SI (match_operand:HI 1 "register_operand" "")))]
600 
  ""
601 
{
602 
  if (sext_operand (operands[1], HImode))
603 
    emit_insn (gen_extendhisi2_internal (operands[0], operands[1]));
604 
  else
605 
    xtensa_extend_reg (operands[0], operands[1]);
606 
  DONE;
607 
})
608 
 
609 
(define_insn "extendhisi2_internal"
610 
  [(set (match_operand:SI 0 "register_operand" "=B,a")
611 
        (sign_extend:SI (match_operand:HI 1 "sext_operand" "r,U")))]
612 
  ""
613 
  "@
614 
   sext\t%0, %1, 15
615 
   l16si\t%0, %1"
616 
  [(set_attr "type"     "arith,load")
617 
   (set_attr "mode"     "SI")
618 
   (set_attr "length"   "3,3")])
619 
 
620 
(define_expand "extendqisi2"
621 
  [(set (match_operand:SI 0 "register_operand" "")
622 
        (sign_extend:SI (match_operand:QI 1 "register_operand" "")))]
623 
  ""
624 
{
625 
  if (TARGET_SEXT)
626 
    emit_insn (gen_extendqisi2_internal (operands[0], operands[1]));
627 
  else
628 
    xtensa_extend_reg (operands[0], operands[1]);
629 
  DONE;
630 
})
631 
 
632 
(define_insn "extendqisi2_internal"
633 
  [(set (match_operand:SI 0 "register_operand" "=B")
634 
        (sign_extend:SI (match_operand:QI 1 "register_operand" "r")))]
635 
  "TARGET_SEXT"
636 
  "sext\t%0, %1, 7"
637 
  [(set_attr "type"     "arith")
638 
   (set_attr "mode"     "SI")
639 
   (set_attr "length"   "3")])
640 
 
641 
 
642 
;; Field extract instructions.
643 
 
644 
(define_expand "extv"
645 
  [(set (match_operand:SI 0 "register_operand" "")
646 
        (sign_extract:SI (match_operand:SI 1 "register_operand" "")
647 
                         (match_operand:SI 2 "const_int_operand" "")
648 
                         (match_operand:SI 3 "const_int_operand" "")))]
649 
  "TARGET_SEXT"
650 
{
651 
  if (!sext_fldsz_operand (operands[2], SImode))
652 
    FAIL;
653 
 
654 
  /* We could expand to a right shift followed by SEXT but that's
655 
     no better than the standard left and right shift sequence.  */
656 
  if (!lsbitnum_operand (operands[3], SImode))
657 
    FAIL;
658 
 
659 
  emit_insn (gen_extv_internal (operands[0], operands[1],
660 
                                operands[2], operands[3]));
661 
  DONE;
662 
})
663 
 
664 
(define_insn "extv_internal"
665 
  [(set (match_operand:SI 0 "register_operand" "=a")
666 
        (sign_extract:SI (match_operand:SI 1 "register_operand" "r")
667 
                         (match_operand:SI 2 "sext_fldsz_operand" "i")
668 
                         (match_operand:SI 3 "lsbitnum_operand" "i")))]
669 
  "TARGET_SEXT"
670 
{
671 
  int fldsz = INTVAL (operands[2]);
672 
  operands[2] = GEN_INT (fldsz - 1);
673 
  return "sext\t%0, %1, %2";
674 
}
675 
  [(set_attr "type"     "arith")
676 
   (set_attr "mode"     "SI")
677 
   (set_attr "length"   "3")])
678 
 
679 
(define_expand "extzv"
680 
  [(set (match_operand:SI 0 "register_operand" "")
681 
        (zero_extract:SI (match_operand:SI 1 "register_operand" "")
682 
                         (match_operand:SI 2 "const_int_operand" "")
683 
                         (match_operand:SI 3 "const_int_operand" "")))]
684 
  ""
685 
{
686 
  if (!extui_fldsz_operand (operands[2], SImode))
687 
    FAIL;
688 
  emit_insn (gen_extzv_internal (operands[0], operands[1],
689 
                                 operands[2], operands[3]));
690 
  DONE;
691 
})
692 
 
693 
(define_insn "extzv_internal"
694 
  [(set (match_operand:SI 0 "register_operand" "=a")
695 
        (zero_extract:SI (match_operand:SI 1 "register_operand" "r")
696 
                         (match_operand:SI 2 "extui_fldsz_operand" "i")
697 
                         (match_operand:SI 3 "const_int_operand" "i")))]
698 
  ""
699 
{
700 
  int shift;
701 
  if (BITS_BIG_ENDIAN)
702 
    shift = (32 - (INTVAL (operands[2]) + INTVAL (operands[3]))) & 0x1f;
703 
  else
704 
    shift = INTVAL (operands[3]) & 0x1f;
705 
  operands[3] = GEN_INT (shift);
706 
  return "extui\t%0, %1, %3, %2";
707 
}
708 
  [(set_attr "type"     "arith")
709 
   (set_attr "mode"     "SI")
710 
   (set_attr "length"   "3")])
711 
 
712 
 
713 
;; Conversions.
714 
 
715 
(define_insn "fix_truncsfsi2"
716 
  [(set (match_operand:SI 0 "register_operand" "=a")
717 
        (fix:SI (match_operand:SF 1 "register_operand" "f")))]
718 
  "TARGET_HARD_FLOAT"
719 
  "trunc.s\t%0, %1, 0"
720 
  [(set_attr "type"     "fconv")
721 
   (set_attr "mode"     "SF")
722 
   (set_attr "length"   "3")])
723 
 
724 
(define_insn "fixuns_truncsfsi2"
725 
  [(set (match_operand:SI 0 "register_operand" "=a")
726 
        (unsigned_fix:SI (match_operand:SF 1 "register_operand" "f")))]
727 
  "TARGET_HARD_FLOAT"
728 
  "utrunc.s\t%0, %1, 0"
729 
  [(set_attr "type"     "fconv")
730 
   (set_attr "mode"     "SF")
731 
   (set_attr "length"   "3")])
732 
 
733 
(define_insn "floatsisf2"
734 
  [(set (match_operand:SF 0 "register_operand" "=f")
735 
        (float:SF (match_operand:SI 1 "register_operand" "a")))]
736 
  "TARGET_HARD_FLOAT"
737 
  "float.s\t%0, %1, 0"
738 
  [(set_attr "type"     "fconv")
739 
   (set_attr "mode"     "SF")
740 
   (set_attr "length"   "3")])
741 
 
742 
(define_insn "floatunssisf2"
743 
  [(set (match_operand:SF 0 "register_operand" "=f")
744 
        (unsigned_float:SF (match_operand:SI 1 "register_operand" "a")))]
745 
  "TARGET_HARD_FLOAT"
746 
  "ufloat.s\t%0, %1, 0"
747 
  [(set_attr "type"     "fconv")
748 
   (set_attr "mode"     "SF")
749 
   (set_attr "length"   "3")])
750 
 
751 
 
752 
;; Data movement instructions.
753 
 
754 
;; 64-bit Integer moves
755 
 
756 
(define_expand "movdi"
757 
  [(set (match_operand:DI 0 "nonimmed_operand" "")
758 
        (match_operand:DI 1 "general_operand" ""))]
759 
  ""
760 
{
761 
  if (CONSTANT_P (operands[1]) && !TARGET_CONST16)
762 
    operands[1] = force_const_mem (DImode, operands[1]);
763 
 
764 
  if (!register_operand (operands[0], DImode)
765 
      && !register_operand (operands[1], DImode))
766 
    operands[1] = force_reg (DImode, operands[1]);
767 
 
768 
  operands[1] = xtensa_copy_incoming_a7 (operands[1]);
769 
})
770 
 
771 
(define_insn_and_split "movdi_internal"
772 
  [(set (match_operand:DI 0 "nonimmed_operand" "=a,W,a,a,U")
773 
        (match_operand:DI 1 "move_operand" "r,i,T,U,r"))]
774 
  "register_operand (operands[0], DImode)
775 
   || register_operand (operands[1], DImode)"
776 
  "#"
777 
  "reload_completed"
778 
  [(set (match_dup 0) (match_dup 2))
779 
   (set (match_dup 1) (match_dup 3))]
780 
{
781 
  xtensa_split_operand_pair (operands, SImode);
782 
  if (reg_overlap_mentioned_p (operands[0], operands[3]))
783 
    {
784 
      rtx tmp;
785 
      tmp = operands[0], operands[0] = operands[1], operands[1] = tmp;
786 
      tmp = operands[2], operands[2] = operands[3], operands[3] = tmp;
787 
    }
788 
})
789 
 
790 
;; 32-bit Integer moves
791 
 
792 
(define_expand "movsi"
793 
  [(set (match_operand:SI 0 "nonimmed_operand" "")
794 
        (match_operand:SI 1 "general_operand" ""))]
795 
  ""
796 
{
797 
  if (xtensa_emit_move_sequence (operands, SImode))
798 
    DONE;
799 
})
800 
 
801 
(define_insn "movsi_internal"
802 
  [(set (match_operand:SI 0 "nonimmed_operand" "=D,D,D,D,R,R,a,q,a,W,a,a,U,*a,*A")
803 
        (match_operand:SI 1 "move_operand" "M,D,d,R,D,d,r,r,I,i,T,U,r,*A,*r"))]
804 
  "xtensa_valid_move (SImode, operands)"
805 
  "@
806 
   movi.n\t%0, %x1
807 
   mov.n\t%0, %1
808 
   mov.n\t%0, %1
809 
   %v1l32i.n\t%0, %1
810 
   %v0s32i.n\t%1, %0
811 
   %v0s32i.n\t%1, %0
812 
   mov\t%0, %1
813 
   movsp\t%0, %1
814 
   movi\t%0, %x1
815 
   const16\t%0, %t1\;const16\t%0, %b1
816 
   %v1l32r\t%0, %1
817 
   %v1l32i\t%0, %1
818 
   %v0s32i\t%1, %0
819 
   rsr\t%0, ACCLO
820 
   wsr\t%1, ACCLO"
821 
  [(set_attr "type" "move,move,move,load,store,store,move,move,move,move,load,load,store,rsr,wsr")
822 
   (set_attr "mode"     "SI")
823 
   (set_attr "length"   "2,2,2,2,2,2,3,3,3,6,3,3,3,3,3")])
824 
 
825 
;; 16-bit Integer moves
826 
 
827 
(define_expand "movhi"
828 
  [(set (match_operand:HI 0 "nonimmed_operand" "")
829 
        (match_operand:HI 1 "general_operand" ""))]
830 
  ""
831 
{
832 
  if (xtensa_emit_move_sequence (operands, HImode))
833 
    DONE;
834 
})
835 
 
836 
(define_insn "movhi_internal"
837 
  [(set (match_operand:HI 0 "nonimmed_operand" "=D,D,a,a,a,U,*a,*A")
838 
        (match_operand:HI 1 "move_operand" "M,d,r,I,U,r,*A,*r"))]
839 
  "xtensa_valid_move (HImode, operands)"
840 
  "@
841 
   movi.n\t%0, %x1
842 
   mov.n\t%0, %1
843 
   mov\t%0, %1
844 
   movi\t%0, %x1
845 
   %v1l16ui\t%0, %1
846 
   %v0s16i\t%1, %0
847 
   rsr\t%0, ACCLO
848 
   wsr\t%1, ACCLO"
849 
  [(set_attr "type"     "move,move,move,move,load,store,rsr,wsr")
850 
   (set_attr "mode"     "HI")
851 
   (set_attr "length"   "2,2,3,3,3,3,3,3")])
852 
 
853 
;; 8-bit Integer moves
854 
 
855 
(define_expand "movqi"
856 
  [(set (match_operand:QI 0 "nonimmed_operand" "")
857 
        (match_operand:QI 1 "general_operand" ""))]
858 
  ""
859 
{
860 
  if (xtensa_emit_move_sequence (operands, QImode))
861 
    DONE;
862 
})
863 
 
864 
(define_insn "movqi_internal"
865 
  [(set (match_operand:QI 0 "nonimmed_operand" "=D,D,a,a,a,U,*a,*A")
866 
        (match_operand:QI 1 "move_operand" "M,d,r,I,U,r,*A,*r"))]
867 
  "xtensa_valid_move (QImode, operands)"
868 
  "@
869 
   movi.n\t%0, %x1
870 
   mov.n\t%0, %1
871 
   mov\t%0, %1
872 
   movi\t%0, %x1
873 
   %v1l8ui\t%0, %1
874 
   %v0s8i\t%1, %0
875 
   rsr\t%0, ACCLO
876 
   wsr\t%1, ACCLO"
877 
  [(set_attr "type"     "move,move,move,move,load,store,rsr,wsr")
878 
   (set_attr "mode"     "QI")
879 
   (set_attr "length"   "2,2,3,3,3,3,3,3")])
880 
 
881 
;; Sub-word reloads from the constant pool.
882 
 
883 
(define_expand "reload_literal"
884 
  [(parallel [(match_operand:HQI 0 "register_operand" "=r")
885 
              (match_operand:HQI 1 "constantpool_operand" "")
886 
              (match_operand:SI 2 "register_operand" "=&r")])]
887 
  ""
888 
{
889 
  rtx lit, scratch;
890 
  unsigned word_off, byte_off;
891 
 
892 
  if (MEM_P (operands[1]))
893 
    {
894 
      lit = operands[1];
895 
      word_off = 0;
896 
      byte_off = 0;
897 
    }
898 
  else
899 
    {
900 
      gcc_assert (GET_CODE (operands[1]) == SUBREG);
901 
      lit = SUBREG_REG (operands[1]);
902 
      word_off = SUBREG_BYTE (operands[1]) & ~(UNITS_PER_WORD - 1);
903 
      byte_off = SUBREG_BYTE (operands[1]) - word_off;
904 
    }
905 
 
906 
  lit = adjust_address (lit, SImode, word_off);
907 
  scratch = operands[2];
908 
  emit_insn (gen_movsi (scratch, lit));
909 
  emit_insn (gen_mov (operands[0],
910 
                            gen_rtx_SUBREG (mode, scratch, byte_off)));
911 
 
912 
  DONE;
913 
})
914 
 
915 
;; 32-bit floating point moves
916 
 
917 
(define_expand "movsf"
918 
  [(set (match_operand:SF 0 "nonimmed_operand" "")
919 
        (match_operand:SF 1 "general_operand" ""))]
920 
  ""
921 
{
922 
  if (!TARGET_CONST16 && CONSTANT_P (operands[1]))
923 
    operands[1] = force_const_mem (SFmode, operands[1]);
924 
 
925 
  if ((!register_operand (operands[0], SFmode)
926 
       && !register_operand (operands[1], SFmode))
927 
      || (FP_REG_P (xt_true_regnum (operands[0]))
928 
          && !(reload_in_progress | reload_completed)
929 
          && (constantpool_mem_p (operands[1])
930 
              || CONSTANT_P (operands[1]))))
931 
    operands[1] = force_reg (SFmode, operands[1]);
932 
 
933 
  operands[1] = xtensa_copy_incoming_a7 (operands[1]);
934 
})
935 
 
936 
(define_insn "movsf_internal"
937 
  [(set (match_operand:SF 0 "nonimmed_operand" "=f,f,U,D,D,R,a,f,a,W,a,a,U")
938 
        (match_operand:SF 1 "move_operand" "f,U,f,d,R,d,r,r,f,iF,T,U,r"))]
939 
  "((register_operand (operands[0], SFmode)
940 
     || register_operand (operands[1], SFmode))
941 
    && !(FP_REG_P (xt_true_regnum (operands[0]))
942 
         && (constantpool_mem_p (operands[1]) || CONSTANT_P (operands[1]))))"
943 
  "@
944 
   mov.s\t%0, %1
945 
   %v1lsi\t%0, %1
946 
   %v0ssi\t%1, %0
947 
   mov.n\t%0, %1
948 
   %v1l32i.n\t%0, %1
949 
   %v0s32i.n\t%1, %0
950 
   mov\t%0, %1
951 
   wfr\t%0, %1
952 
   rfr\t%0, %1
953 
   const16\t%0, %t1\;const16\t%0, %b1
954 
   %v1l32r\t%0, %1
955 
   %v1l32i\t%0, %1
956 
   %v0s32i\t%1, %0"
957 
  [(set_attr "type"     "farith,fload,fstore,move,load,store,move,farith,farith,move,load,load,store")
958 
   (set_attr "mode"     "SF")
959 
   (set_attr "length"   "3,3,3,2,2,2,3,3,3,6,3,3,3")])
960 
 
961 
(define_insn "*lsiu"
962 
  [(set (match_operand:SF 0 "register_operand" "=f")
963 
        (mem:SF (plus:SI (match_operand:SI 1 "register_operand" "+a")
964 
                         (match_operand:SI 2 "fpmem_offset_operand" "i"))))
965 
   (set (match_dup 1)
966 
        (plus:SI (match_dup 1) (match_dup 2)))]
967 
  "TARGET_HARD_FLOAT"
968 
{
969 
  if (TARGET_SERIALIZE_VOLATILE && volatile_refs_p (PATTERN (insn)))
970 
    output_asm_insn ("memw", operands);
971 
  return "lsiu\t%0, %1, %2";
972 
}
973 
  [(set_attr "type"     "fload")
974 
   (set_attr "mode"     "SF")
975 
   (set_attr "length"   "3")])
976 
 
977 
(define_insn "*ssiu"
978 
  [(set (mem:SF (plus:SI (match_operand:SI 0 "register_operand" "+a")
979 
                         (match_operand:SI 1 "fpmem_offset_operand" "i")))
980 
        (match_operand:SF 2 "register_operand" "f"))
981 
   (set (match_dup 0)
982 
        (plus:SI (match_dup 0) (match_dup 1)))]
983 
  "TARGET_HARD_FLOAT"
984 
{
985 
  if (TARGET_SERIALIZE_VOLATILE && volatile_refs_p (PATTERN (insn)))
986 
    output_asm_insn ("memw", operands);
987 
  return "ssiu\t%2, %0, %1";
988 
}
989 
  [(set_attr "type"     "fstore")
990 
   (set_attr "mode"     "SF")
991 
   (set_attr "length"   "3")])
992 
 
993 
;; 64-bit floating point moves
994 
 
995 
(define_expand "movdf"
996 
  [(set (match_operand:DF 0 "nonimmed_operand" "")
997 
        (match_operand:DF 1 "general_operand" ""))]
998 
  ""
999 
{
1000 
  if (CONSTANT_P (operands[1]) && !TARGET_CONST16)
1001 
    operands[1] = force_const_mem (DFmode, operands[1]);
1002 
 
1003 
  if (!register_operand (operands[0], DFmode)
1004 
      && !register_operand (operands[1], DFmode))
1005 
    operands[1] = force_reg (DFmode, operands[1]);
1006 
 
1007 
  operands[1] = xtensa_copy_incoming_a7 (operands[1]);
1008 
})
1009 
 
1010 
(define_insn_and_split "movdf_internal"
1011 
  [(set (match_operand:DF 0 "nonimmed_operand" "=a,W,a,a,U")
1012 
        (match_operand:DF 1 "move_operand" "r,iF,T,U,r"))]
1013 
  "register_operand (operands[0], DFmode)
1014 
   || register_operand (operands[1], DFmode)"
1015 
  "#"
1016 
  "reload_completed"
1017 
  [(set (match_dup 0) (match_dup 2))
1018 
   (set (match_dup 1) (match_dup 3))]
1019 
{
1020 
  xtensa_split_operand_pair (operands, SFmode);
1021 
  if (reg_overlap_mentioned_p (operands[0], operands[3]))
1022 
    {
1023 
      rtx tmp;
1024 
      tmp = operands[0], operands[0] = operands[1], operands[1] = tmp;
1025 
      tmp = operands[2], operands[2] = operands[3], operands[3] = tmp;
1026 
    }
1027 
})
1028 
 
1029 
;; Block moves
1030 
 
1031 
(define_expand "movmemsi"
1032 
  [(parallel [(set (match_operand:BLK 0 "" "")
1033 
                   (match_operand:BLK 1 "" ""))
1034 
              (use (match_operand:SI 2 "arith_operand" ""))
1035 
              (use (match_operand:SI 3 "const_int_operand" ""))])]
1036 
  ""
1037 
{
1038 
  if (!xtensa_expand_block_move (operands))
1039 
    FAIL;
1040 
  DONE;
1041 
})
1042 
 
1043 
 
1044 
;; Shift instructions.
1045 
 
1046 
(define_expand "ashlsi3"
1047 
  [(set (match_operand:SI 0 "register_operand" "")
1048 
        (ashift:SI (match_operand:SI 1 "register_operand" "")
1049 
                   (match_operand:SI 2 "arith_operand" "")))]
1050 
  ""
1051 
{
1052 
  operands[1] = xtensa_copy_incoming_a7 (operands[1]);
1053 
})
1054 
 
1055 
(define_insn "ashlsi3_internal"
1056 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
1057 
        (ashift:SI (match_operand:SI 1 "register_operand" "r,r")
1058 
                   (match_operand:SI 2 "arith_operand" "J,r")))]
1059 
  ""
1060 
  "@
1061 
   slli\t%0, %1, %R2
1062 
   ssl\t%2\;sll\t%0, %1"
1063 
  [(set_attr "type"     "arith,arith")
1064 
   (set_attr "mode"     "SI")
1065 
   (set_attr "length"   "3,6")])
1066 
 
1067 
(define_insn "ashrsi3"
1068 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
1069 
        (ashiftrt:SI (match_operand:SI 1 "register_operand" "r,r")
1070 
                     (match_operand:SI 2 "arith_operand" "J,r")))]
1071 
  ""
1072 
  "@
1073 
   srai\t%0, %1, %R2
1074 
   ssr\t%2\;sra\t%0, %1"
1075 
  [(set_attr "type"     "arith,arith")
1076 
   (set_attr "mode"     "SI")
1077 
   (set_attr "length"   "3,6")])
1078 
 
1079 
(define_insn "lshrsi3"
1080 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
1081 
        (lshiftrt:SI (match_operand:SI 1 "register_operand" "r,r")
1082 
                     (match_operand:SI 2 "arith_operand" "J,r")))]
1083 
  ""
1084 
{
1085 
  if (which_alternative == 0)
1086 
    {
1087 
      if ((INTVAL (operands[2]) & 0x1f) < 16)
1088 
        return "srli\t%0, %1, %R2";
1089 
      else
1090 
        return "extui\t%0, %1, %R2, %L2";
1091 
    }
1092 
  return "ssr\t%2\;srl\t%0, %1";
1093 
}
1094 
  [(set_attr "type"     "arith,arith")
1095 
   (set_attr "mode"     "SI")
1096 
   (set_attr "length"   "3,6")])
1097 
 
1098 
(define_insn "rotlsi3"
1099 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
1100 
        (rotate:SI (match_operand:SI 1 "register_operand" "r,r")
1101 
                     (match_operand:SI 2 "arith_operand" "J,r")))]
1102 
  ""
1103 
  "@
1104 
   ssai\t%L2\;src\t%0, %1, %1
1105 
   ssl\t%2\;src\t%0, %1, %1"
1106 
  [(set_attr "type"     "multi,multi")
1107 
   (set_attr "mode"     "SI")
1108 
   (set_attr "length"   "6,6")])
1109 
 
1110 
(define_insn "rotrsi3"
1111 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
1112 
        (rotatert:SI (match_operand:SI 1 "register_operand" "r,r")
1113 
                     (match_operand:SI 2 "arith_operand" "J,r")))]
1114 
  ""
1115 
  "@
1116 
   ssai\t%R2\;src\t%0, %1, %1
1117 
   ssr\t%2\;src\t%0, %1, %1"
1118 
  [(set_attr "type"     "multi,multi")
1119 
   (set_attr "mode"     "SI")
1120 
   (set_attr "length"   "6,6")])
1121 
 
1122 
 
1123 
;; Comparisons.
1124 
 
1125 
;; Conditional branches.
1126 
 
1127 
(define_expand "cbranchsi4"
1128 
  [(match_operator 0 "comparison_operator"
1129 
    [(match_operand:SI 1 "register_operand")
1130 
     (match_operand:SI 2 "nonmemory_operand")])
1131 
   (match_operand 3 "")]
1132 
  ""
1133 
{
1134 
  xtensa_expand_conditional_branch (operands, SImode);
1135 
  DONE;
1136 
})
1137 
 
1138 
(define_expand "cbranchsf4"
1139 
  [(match_operator 0 "comparison_operator"
1140 
    [(match_operand:SF 1 "register_operand")
1141 
     (match_operand:SF 2 "register_operand")])
1142 
   (match_operand 3 "")]
1143 
  "TARGET_HARD_FLOAT"
1144 
{
1145 
  xtensa_expand_conditional_branch (operands, SFmode);
1146 
  DONE;
1147 
})
1148 
 
1149 
;; Branch patterns for standard integer comparisons
1150 
 
1151 
(define_insn "*btrue"
1152 
  [(set (pc)
1153 
        (if_then_else (match_operator 3 "branch_operator"
1154 
                       [(match_operand:SI 0 "register_operand" "r,r")
1155 
                        (match_operand:SI 1 "branch_operand" "K,r")])
1156 
                      (label_ref (match_operand 2 "" ""))
1157 
                      (pc)))]
1158 
  ""
1159 
{
1160 
  return xtensa_emit_branch (false, which_alternative == 0, operands);
1161 
}
1162 
  [(set_attr "type"     "jump,jump")
1163 
   (set_attr "mode"     "none")
1164 
   (set_attr "length"   "3,3")])
1165 
 
1166 
(define_insn "*bfalse"
1167 
  [(set (pc)
1168 
        (if_then_else (match_operator 3 "branch_operator"
1169 
                       [(match_operand:SI 0 "register_operand" "r,r")
1170 
                        (match_operand:SI 1 "branch_operand" "K,r")])
1171 
                      (pc)
1172 
                      (label_ref (match_operand 2 "" ""))))]
1173 
  ""
1174 
{
1175 
  return xtensa_emit_branch (true, which_alternative == 0, operands);
1176 
}
1177 
  [(set_attr "type"     "jump,jump")
1178 
   (set_attr "mode"     "none")
1179 
   (set_attr "length"   "3,3")])
1180 
 
1181 
(define_insn "*ubtrue"
1182 
  [(set (pc)
1183 
        (if_then_else (match_operator 3 "ubranch_operator"
1184 
                       [(match_operand:SI 0 "register_operand" "r,r")
1185 
                        (match_operand:SI 1 "ubranch_operand" "L,r")])
1186 
                      (label_ref (match_operand 2 "" ""))
1187 
                      (pc)))]
1188 
  ""
1189 
{
1190 
  return xtensa_emit_branch (false, which_alternative == 0, operands);
1191 
}
1192 
  [(set_attr "type"     "jump,jump")
1193 
   (set_attr "mode"     "none")
1194 
   (set_attr "length"   "3,3")])
1195 
 
1196 
(define_insn "*ubfalse"
1197 
  [(set (pc)
1198 
        (if_then_else (match_operator 3 "ubranch_operator"
1199 
                         [(match_operand:SI 0 "register_operand" "r,r")
1200 
                          (match_operand:SI 1 "ubranch_operand" "L,r")])
1201 
                      (pc)
1202 
                      (label_ref (match_operand 2 "" ""))))]
1203 
  ""
1204 
{
1205 
  return xtensa_emit_branch (true, which_alternative == 0, operands);
1206 
}
1207 
  [(set_attr "type"     "jump,jump")
1208 
   (set_attr "mode"     "none")
1209 
   (set_attr "length"   "3,3")])
1210 
 
1211 
;; Branch patterns for bit testing
1212 
 
1213 
(define_insn "*bittrue"
1214 
  [(set (pc)
1215 
        (if_then_else (match_operator 3 "boolean_operator"
1216 
                        [(zero_extract:SI
1217 
                            (match_operand:SI 0 "register_operand" "r,r")
1218 
                            (const_int 1)
1219 
                            (match_operand:SI 1 "arith_operand" "J,r"))
1220 
                         (const_int 0)])
1221 
                      (label_ref (match_operand 2 "" ""))
1222 
                      (pc)))]
1223 
  ""
1224 
{
1225 
  return xtensa_emit_bit_branch (false, which_alternative == 0, operands);
1226 
}
1227 
  [(set_attr "type"     "jump")
1228 
   (set_attr "mode"     "none")
1229 
   (set_attr "length"   "3")])
1230 
 
1231 
(define_insn "*bitfalse"
1232 
  [(set (pc)
1233 
        (if_then_else (match_operator 3 "boolean_operator"
1234 
                        [(zero_extract:SI
1235 
                            (match_operand:SI 0 "register_operand" "r,r")
1236 
                            (const_int 1)
1237 
                            (match_operand:SI 1 "arith_operand" "J,r"))
1238 
                         (const_int 0)])
1239 
                      (pc)
1240 
                      (label_ref (match_operand 2 "" ""))))]
1241 
  ""
1242 
{
1243 
  return xtensa_emit_bit_branch (true, which_alternative == 0, operands);
1244 
}
1245 
  [(set_attr "type"     "jump")
1246 
   (set_attr "mode"     "none")
1247 
   (set_attr "length"   "3")])
1248 
 
1249 
(define_insn "*masktrue"
1250 
  [(set (pc)
1251 
        (if_then_else (match_operator 3 "boolean_operator"
1252 
                 [(and:SI (match_operand:SI 0 "register_operand" "r")
1253 
                          (match_operand:SI 1 "register_operand" "r"))
1254 
                  (const_int 0)])
1255 
                      (label_ref (match_operand 2 "" ""))
1256 
                      (pc)))]
1257 
  ""
1258 
{
1259 
  switch (GET_CODE (operands[3]))
1260 
    {
1261 
    case EQ:            return "bnone\t%0, %1, %2";
1262 
    case NE:            return "bany\t%0, %1, %2";
1263 
    default:            gcc_unreachable ();
1264 
    }
1265 
}
1266 
  [(set_attr "type"     "jump")
1267 
   (set_attr "mode"     "none")
1268 
   (set_attr "length"   "3")])
1269 
 
1270 
(define_insn "*maskfalse"
1271 
  [(set (pc)
1272 
        (if_then_else (match_operator 3 "boolean_operator"
1273 
                 [(and:SI (match_operand:SI 0 "register_operand" "r")
1274 
                          (match_operand:SI 1 "register_operand" "r"))
1275 
                  (const_int 0)])
1276 
                      (pc)
1277 
                      (label_ref (match_operand 2 "" ""))))]
1278 
  ""
1279 
{
1280 
  switch (GET_CODE (operands[3]))
1281 
    {
1282 
    case EQ:            return "bany\t%0, %1, %2";
1283 
    case NE:            return "bnone\t%0, %1, %2";
1284 
    default:            gcc_unreachable ();
1285 
    }
1286 
}
1287 
  [(set_attr "type"     "jump")
1288 
   (set_attr "mode"     "none")
1289 
   (set_attr "length"   "3")])
1290 
 
1291 
 
1292 
;; Define the loop insns used by bct optimization to represent the
1293 
;; start and end of a zero-overhead loop (in loop.c).  This start
1294 
;; template generates the loop insn; the end template doesn't generate
1295 
;; any instructions since loop end is handled in hardware.
1296 
 
1297 
(define_insn "zero_cost_loop_start"
1298 
  [(set (pc)
1299 
        (if_then_else (eq (match_operand:SI 0 "register_operand" "a")
1300 
                          (const_int 0))
1301 
                      (label_ref (match_operand 1 "" ""))
1302 
                      (pc)))
1303 
   (set (reg:SI 19)
1304 
        (plus:SI (match_dup 0) (const_int -1)))]
1305 
  ""
1306 
  "loopnez\t%0, %l1"
1307 
  [(set_attr "type"     "jump")
1308 
   (set_attr "mode"     "none")
1309 
   (set_attr "length"   "3")])
1310 
 
1311 
(define_insn "zero_cost_loop_end"
1312 
  [(set (pc)
1313 
        (if_then_else (ne (reg:SI 19) (const_int 0))
1314 
                      (label_ref (match_operand 0 "" ""))
1315 
                      (pc)))
1316 
   (set (reg:SI 19)
1317 
        (plus:SI (reg:SI 19) (const_int -1)))]
1318 
  ""
1319 
{
1320 
    xtensa_emit_loop_end (insn, operands);
1321 
    return "";
1322 
}
1323 
  [(set_attr "type"     "jump")
1324 
   (set_attr "mode"     "none")
1325 
   (set_attr "length"   "0")])
1326 
 
1327 
 
1328 
;; Setting a register from a comparison.
1329 
 
1330 
(define_expand "cstoresi4"
1331 
  [(match_operand:SI 0 "register_operand")
1332 
   (match_operator 1 "xtensa_cstoresi_operator"
1333 
    [(match_operand:SI 2 "register_operand")
1334 
     (match_operand:SI 3 "nonmemory_operand")])]
1335 
  ""
1336 
{
1337 
  if (!xtensa_expand_scc (operands, SImode))
1338 
    FAIL;
1339 
  DONE;
1340 
})
1341 
 
1342 
(define_expand "cstoresf4"
1343 
  [(match_operand:SI 0 "register_operand")
1344 
   (match_operator:SI 1 "comparison_operator"
1345 
    [(match_operand:SF 2 "register_operand")
1346 
     (match_operand:SF 3 "register_operand")])]
1347 
  "TARGET_HARD_FLOAT"
1348 
{
1349 
  if (!xtensa_expand_scc (operands, SFmode))
1350 
    FAIL;
1351 
  DONE;
1352 
})
1353 
 
1354 
 
1355 
 
1356 
;; Conditional moves.
1357 
 
1358 
(define_expand "movsicc"
1359 
  [(set (match_operand:SI 0 "register_operand" "")
1360 
        (if_then_else:SI (match_operand 1 "comparison_operator" "")
1361 
                         (match_operand:SI 2 "register_operand" "")
1362 
                         (match_operand:SI 3 "register_operand" "")))]
1363 
  ""
1364 
{
1365 
  if (!xtensa_expand_conditional_move (operands, 0))
1366 
    FAIL;
1367 
  DONE;
1368 
})
1369 
 
1370 
(define_expand "movsfcc"
1371 
  [(set (match_operand:SF 0 "register_operand" "")
1372 
        (if_then_else:SF (match_operand 1 "comparison_operator" "")
1373 
                         (match_operand:SF 2 "register_operand" "")
1374 
                         (match_operand:SF 3 "register_operand" "")))]
1375 
  ""
1376 
{
1377 
  if (!xtensa_expand_conditional_move (operands, 1))
1378 
    FAIL;
1379 
  DONE;
1380 
})
1381 
 
1382 
(define_insn "movsicc_internal0"
1383 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
1384 
        (if_then_else:SI (match_operator 4 "branch_operator"
1385 
                           [(match_operand:SI 1 "register_operand" "r,r")
1386 
                            (const_int 0)])
1387 
                         (match_operand:SI 2 "register_operand" "r,0")
1388 
                         (match_operand:SI 3 "register_operand" "0,r")))]
1389 
  ""
1390 
{
1391 
  return xtensa_emit_movcc (which_alternative == 1, false, false, operands);
1392 
}
1393 
  [(set_attr "type"     "move,move")
1394 
   (set_attr "mode"     "SI")
1395 
   (set_attr "length"   "3,3")])
1396 
 
1397 
(define_insn "movsicc_internal1"
1398 
  [(set (match_operand:SI 0 "register_operand" "=a,a")
1399 
        (if_then_else:SI (match_operator 4 "boolean_operator"
1400 
                           [(match_operand:CC 1 "register_operand" "b,b")
1401 
                            (const_int 0)])
1402 
                         (match_operand:SI 2 "register_operand" "r,0")
1403 
                         (match_operand:SI 3 "register_operand" "0,r")))]
1404 
  "TARGET_BOOLEANS"
1405 
{
1406 
  return xtensa_emit_movcc (which_alternative == 1, false, true, operands);
1407 
}
1408 
  [(set_attr "type"     "move,move")
1409 
   (set_attr "mode"     "SI")
1410 
   (set_attr "length"   "3,3")])
1411 
 
1412 
(define_insn "movsfcc_internal0"
1413 
  [(set (match_operand:SF 0 "register_operand" "=a,a,f,f")
1414 
        (if_then_else:SF (match_operator 4 "branch_operator"
1415 
                           [(match_operand:SI 1 "register_operand" "r,r,r,r")
1416 
                            (const_int 0)])
1417 
                         (match_operand:SF 2 "register_operand" "r,0,f,0")
1418 
                         (match_operand:SF 3 "register_operand" "0,r,0,f")))]
1419 
  ""
1420 
{
1421 
  return xtensa_emit_movcc ((which_alternative & 1) == 1,
1422 
                            which_alternative >= 2, false, operands);
1423 
}
1424 
  [(set_attr "type"     "move,move,move,move")
1425 
   (set_attr "mode"     "SF")
1426 
   (set_attr "length"   "3,3,3,3")])
1427 
 
1428 
(define_insn "movsfcc_internal1"
1429 
  [(set (match_operand:SF 0 "register_operand" "=a,a,f,f")
1430 
        (if_then_else:SF (match_operator 4 "boolean_operator"
1431 
                           [(match_operand:CC 1 "register_operand" "b,b,b,b")
1432 
                            (const_int 0)])
1433 
                         (match_operand:SF 2 "register_operand" "r,0,f,0")
1434 
                         (match_operand:SF 3 "register_operand" "0,r,0,f")))]
1435 
  "TARGET_BOOLEANS"
1436 
{
1437 
  return xtensa_emit_movcc ((which_alternative & 1) == 1,
1438 
                            which_alternative >= 2, true, operands);
1439 
}
1440 
  [(set_attr "type"     "move,move,move,move")
1441 
   (set_attr "mode"     "SF")
1442 
   (set_attr "length"   "3,3,3,3")])
1443 
 
1444 
 
1445 
;; Floating-point comparisons.
1446 
 
1447 
(define_insn "s_sf"
1448 
  [(set (match_operand:CC 0 "register_operand" "=b")
1449 
        (any_scc_sf:CC (match_operand:SF 1 "register_operand" "f")
1450 
                       (match_operand:SF 2 "register_operand" "f")))]
1451 
  "TARGET_HARD_FLOAT"
1452 
  ".s\t%0, %1, %2"
1453 
  [(set_attr "type"     "farith")
1454 
   (set_attr "mode"     "BL")
1455 
   (set_attr "length"   "3")])
1456 
 
1457 
 
1458 
;; Unconditional branches.
1459 
 
1460 
(define_insn "jump"
1461 
  [(set (pc)
1462 
        (label_ref (match_operand 0 "" "")))]
1463 
  ""
1464 
  "j\t%l0"
1465 
  [(set_attr "type"     "jump")
1466 
   (set_attr "mode"     "none")
1467 
   (set_attr "length"   "3")])
1468 
 
1469 
(define_expand "indirect_jump"
1470 
  [(set (pc)
1471 
        (match_operand 0 "register_operand" ""))]
1472 
  ""
1473 
{
1474 
  rtx dest = operands[0];
1475 
  if (GET_CODE (dest) != REG || GET_MODE (dest) != Pmode)
1476 
    operands[0] = copy_to_mode_reg (Pmode, dest);
1477 
 
1478 
  emit_jump_insn (gen_indirect_jump_internal (dest));
1479 
  DONE;
1480 
})
1481 
 
1482 
(define_insn "indirect_jump_internal"
1483 
  [(set (pc) (match_operand:SI 0 "register_operand" "r"))]
1484 
  ""
1485 
  "jx\t%0"
1486 
  [(set_attr "type"     "jump")
1487 
   (set_attr "mode"     "none")
1488 
   (set_attr "length"   "3")])
1489 
 
1490 
 
1491 
(define_expand "tablejump"
1492 
  [(use (match_operand:SI 0 "register_operand" ""))
1493 
   (use (label_ref (match_operand 1 "" "")))]
1494 
   ""
1495 
{
1496 
  rtx target = operands[0];
1497 
  if (flag_pic)
1498 
    {
1499 
      /* For PIC, the table entry is relative to the start of the table.  */
1500 
      rtx label = gen_reg_rtx (SImode);
1501 
      target = gen_reg_rtx (SImode);
1502 
      emit_move_insn (label, gen_rtx_LABEL_REF (SImode, operands[1]));
1503 
      emit_insn (gen_addsi3 (target, operands[0], label));
1504 
    }
1505 
  emit_jump_insn (gen_tablejump_internal (target, operands[1]));
1506 
  DONE;
1507 
})
1508 
 
1509 
(define_insn "tablejump_internal"
1510 
  [(set (pc)
1511 
        (match_operand:SI 0 "register_operand" "r"))
1512 
   (use (label_ref (match_operand 1 "" "")))]
1513 
  ""
1514 
  "jx\t%0"
1515 
  [(set_attr "type"     "jump")
1516 
   (set_attr "mode"     "none")
1517 
   (set_attr "length"   "3")])
1518 
 
1519 
 
1520 
;; Function calls.
1521 
 
1522 
(define_expand "sym_PLT"
1523 
  [(const (unspec [(match_operand:SI 0 "" "")] UNSPEC_PLT))]
1524 
  ""
1525 
  "")
1526 
 
1527 
(define_expand "call"
1528 
  [(call (match_operand 0 "memory_operand" "")
1529 
         (match_operand 1 "" ""))]
1530 
  ""
1531 
{
1532 
  rtx addr = XEXP (operands[0], 0);
1533 
  if (flag_pic && GET_CODE (addr) == SYMBOL_REF
1534 
      && (!SYMBOL_REF_LOCAL_P (addr) || SYMBOL_REF_EXTERNAL_P (addr)))
1535 
    addr = gen_sym_PLT (addr);
1536 
  if (!call_insn_operand (addr, VOIDmode))
1537 
    XEXP (operands[0], 0) = copy_to_mode_reg (Pmode, addr);
1538 
})
1539 
 
1540 
(define_insn "call_internal"
1541 
  [(call (mem (match_operand:SI 0 "call_insn_operand" "nir"))
1542 
         (match_operand 1 "" "i"))]
1543 
  ""
1544 
{
1545 
  return xtensa_emit_call (0, operands);
1546 
}
1547 
  [(set_attr "type"     "call")
1548 
   (set_attr "mode"     "none")
1549 
   (set_attr "length"   "3")])
1550 
 
1551 
(define_expand "call_value"
1552 
  [(set (match_operand 0 "register_operand" "")
1553 
        (call (match_operand 1 "memory_operand" "")
1554 
              (match_operand 2 "" "")))]
1555 
  ""
1556 
{
1557 
  rtx addr = XEXP (operands[1], 0);
1558 
  if (flag_pic && GET_CODE (addr) == SYMBOL_REF
1559 
      && (!SYMBOL_REF_LOCAL_P (addr) || SYMBOL_REF_EXTERNAL_P (addr)))
1560 
    addr = gen_sym_PLT (addr);
1561 
  if (!call_insn_operand (addr, VOIDmode))
1562 
    XEXP (operands[1], 0) = copy_to_mode_reg (Pmode, addr);
1563 
})
1564 
 
1565 
(define_insn "call_value_internal"
1566 
  [(set (match_operand 0 "register_operand" "=a")
1567 
        (call (mem (match_operand:SI 1 "call_insn_operand" "nir"))
1568 
              (match_operand 2 "" "i")))]
1569 
  ""
1570 
{
1571 
  return xtensa_emit_call (1, operands);
1572 
}
1573 
  [(set_attr "type"     "call")
1574 
   (set_attr "mode"     "none")
1575 
   (set_attr "length"   "3")])
1576 
 
1577 
(define_insn "entry"
1578 
  [(set (reg:SI A1_REG)
1579 
        (unspec_volatile:SI [(match_operand:SI 0 "const_int_operand" "i")]
1580 
                            UNSPECV_ENTRY))]
1581 
  ""
1582 
  "entry\tsp, %0"
1583 
  [(set_attr "type"     "entry")
1584 
   (set_attr "mode"     "SI")
1585 
   (set_attr "length"   "3")])
1586 
 
1587 
(define_insn "return"
1588 
  [(return)
1589 
   (use (reg:SI A0_REG))]
1590 
  "reload_completed"
1591 
{
1592 
  return (TARGET_DENSITY ? "retw.n" : "retw");
1593 
}
1594 
  [(set_attr "type"     "jump")
1595 
   (set_attr "mode"     "none")
1596 
   (set_attr "length"   "2")])
1597 
 
1598 
 
1599 
;; Miscellaneous instructions.
1600 
 
1601 
(define_expand "prologue"
1602 
  [(const_int 0)]
1603 
  ""
1604 
{
1605 
  xtensa_expand_prologue ();
1606 
  DONE;
1607 
})
1608 
 
1609 
(define_expand "epilogue"
1610 
  [(return)]
1611 
  ""
1612 
{
1613 
  emit_jump_insn (gen_return ());
1614 
  DONE;
1615 
})
1616 
 
1617 
(define_insn "nop"
1618 
  [(const_int 0)]
1619 
  ""
1620 
{
1621 
  return (TARGET_DENSITY ? "nop.n" : "nop");
1622 
}
1623 
  [(set_attr "type"     "nop")
1624 
   (set_attr "mode"     "none")
1625 
   (set_attr "length"   "3")])
1626 
 
1627 
(define_expand "nonlocal_goto"
1628 
  [(match_operand:SI 0 "general_operand" "")
1629 
   (match_operand:SI 1 "general_operand" "")
1630 
   (match_operand:SI 2 "general_operand" "")
1631 
   (match_operand:SI 3 "" "")]
1632 
  ""
1633 
{
1634 
  xtensa_expand_nonlocal_goto (operands);
1635 
  DONE;
1636 
})
1637 
 
1638 
;; Stuff an address into the return address register along with the window
1639 
;; size in the high bits.  Because we don't have the window size of the
1640 
;; previous frame, assume the function called out with a CALL8 since that
1641 
;; is what compilers always use.  Note: __builtin_frob_return_addr has
1642 
;; already been applied to the handler, but the generic version doesn't
1643 
;; allow us to frob it quite enough, so we just frob here.
1644 
 
1645 
(define_insn_and_split "eh_return"
1646 
  [(set (reg:SI A0_REG)
1647 
        (unspec_volatile:SI [(match_operand:SI 0 "register_operand" "r")]
1648 
                            UNSPECV_EH_RETURN))
1649 
   (clobber (match_scratch:SI 1 "=r"))]
1650 
  ""
1651 
  "#"
1652 
  "reload_completed"
1653 
  [(set (match_dup 1) (ashift:SI (match_dup 0) (const_int 2)))
1654 
   (set (match_dup 1) (plus:SI (match_dup 1) (const_int 2)))
1655 
   (set (reg:SI A0_REG) (rotatert:SI (match_dup 1) (const_int 2)))]
1656 
  "")
1657 
 
1658 
;; Setting up a frame pointer is tricky for Xtensa because GCC doesn't
1659 
;; know if a frame pointer is required until the reload pass, and
1660 
;; because there may be an incoming argument value in the hard frame
1661 
;; pointer register (a7).  If there is an incoming argument in that
1662 
;; register, the "set_frame_ptr" insn gets inserted immediately after
1663 
;; the insn that copies the incoming argument to a pseudo or to the
1664 
;; stack.  This serves several purposes here: (1) it keeps the
1665 
;; optimizer from copy-propagating or scheduling the use of a7 as an
1666 
;; incoming argument away from the beginning of the function; (2) we
1667 
;; can use a post-reload splitter to expand away the insn if a frame
1668 
;; pointer is not required, so that the post-reload scheduler can do
1669 
;; the right thing; and (3) it makes it easy for the prologue expander
1670 
;; to search for this insn to determine whether it should add a new insn
1671 
;; to set up the frame pointer.
1672 
 
1673 
(define_insn "set_frame_ptr"
1674 
  [(set (reg:SI A7_REG) (unspec_volatile:SI [(const_int 0)] UNSPECV_SET_FP))]
1675 
  ""
1676 
{
1677 
  if (frame_pointer_needed)
1678 
    return "mov\ta7, sp";
1679 
  return "";
1680 
}
1681 
  [(set_attr "type"     "move")
1682 
   (set_attr "mode"     "SI")
1683 
   (set_attr "length"   "3")])
1684 
 
1685 
;; Post-reload splitter to remove fp assignment when it's not needed.
1686 
(define_split
1687 
  [(set (reg:SI A7_REG) (unspec_volatile:SI [(const_int 0)] UNSPECV_SET_FP))]
1688 
  "reload_completed && !frame_pointer_needed"
1689 
  [(unspec [(const_int 0)] UNSPEC_NOP)]
1690 
  "")
1691 
 
1692 
;; The preceding splitter needs something to split the insn into;
1693 
;; things start breaking if the result is just a "use" so instead we
1694 
;; generate the following insn.
1695 
(define_insn "*unspec_nop"
1696 
  [(unspec [(const_int 0)] UNSPEC_NOP)]
1697 
  ""
1698 
  ""
1699 
  [(set_attr "type"     "nop")
1700 
   (set_attr "mode"     "none")
1701 
   (set_attr "length"   "0")])
1702 
 
1703 
 
1704 
;; TLS support
1705 
 
1706 
(define_expand "sym_TPOFF"
1707 
  [(const (unspec [(match_operand:SI 0 "" "")] UNSPEC_TPOFF))]
1708 
  ""
1709 
  "")
1710 
 
1711 
(define_expand "sym_DTPOFF"
1712 
  [(const (unspec [(match_operand:SI 0 "" "")] UNSPEC_DTPOFF))]
1713 
  ""
1714 
  "")
1715 
 
1716 
(define_insn "load_tp"
1717 
  [(set (match_operand:SI 0 "register_operand" "=a")
1718 
        (unspec:SI [(const_int 0)] UNSPEC_TP))]
1719 
  "TARGET_THREADPTR"
1720 
  "rur\t%0, THREADPTR"
1721 
  [(set_attr "type"     "rsr")
1722 
   (set_attr "mode"     "SI")
1723 
   (set_attr "length"   "3")])
1724 
 
1725 
(define_insn "set_tp"
1726 
  [(unspec_volatile [(match_operand:SI 0 "register_operand" "r")]
1727 
                    UNSPECV_SET_TP)]
1728 
  "TARGET_THREADPTR"
1729 
  "wur\t%0, THREADPTR"
1730 
  [(set_attr "type"     "wsr")
1731 
   (set_attr "mode"     "SI")
1732 
   (set_attr "length"   "3")])
1733 
 
1734 
(define_insn "tls_func"
1735 
  [(set (match_operand:SI 0 "register_operand" "=a")
1736 
        (unspec:SI [(match_operand:SI 1 "tls_symbol_operand" "")]
1737 
                   UNSPEC_TLS_FUNC))]
1738 
  "TARGET_THREADPTR && HAVE_AS_TLS"
1739 
  "movi\t%0, %1@TLSFUNC"
1740 
  [(set_attr "type"     "load")
1741 
   (set_attr "mode"     "SI")
1742 
   (set_attr "length"   "3")])
1743 
 
1744 
(define_insn "tls_arg"
1745 
  [(set (match_operand:SI 0 "register_operand" "=a")
1746 
        (unspec:SI [(match_operand:SI 1 "tls_symbol_operand" "")]
1747 
                   UNSPEC_TLS_ARG))]
1748 
  "TARGET_THREADPTR && HAVE_AS_TLS"
1749 
  "movi\t%0, %1@TLSARG"
1750 
  [(set_attr "type"     "load")
1751 
   (set_attr "mode"     "SI")
1752 
   (set_attr "length"   "3")])
1753 
 
1754 
(define_insn "tls_call"
1755 
  [(set (match_operand:SI 0 "register_operand" "=a")
1756 
        (call (mem:SI (unspec:SI [(match_operand:SI 1 "register_operand" "r")
1757 
                                  (match_operand:SI 2 "tls_symbol_operand" "")]
1758 
                                  UNSPEC_TLS_CALL))
1759 
              (match_operand 3 "" "i")))]
1760 
  "TARGET_THREADPTR && HAVE_AS_TLS"
1761 
  "callx8.tls %1, %2@TLSCALL"
1762 
  [(set_attr "type"     "call")
1763 
   (set_attr "mode"     "none")
1764 
   (set_attr "length"   "3")])
1765 
 
1766 
 
1767 
;; Instructions for the Xtensa "boolean" option.
1768 
 
1769 
(define_insn "*booltrue"
1770 
  [(set (pc)
1771 
        (if_then_else (match_operator 2 "boolean_operator"
1772 
                         [(match_operand:CC 0 "register_operand" "b")
1773 
                          (const_int 0)])
1774 
                      (label_ref (match_operand 1 "" ""))
1775 
                      (pc)))]
1776 
  "TARGET_BOOLEANS"
1777 
{
1778 
  if (GET_CODE (operands[2]) == EQ)
1779 
    return "bf\t%0, %1";
1780 
  else
1781 
    return "bt\t%0, %1";
1782 
}
1783 
  [(set_attr "type"     "jump")
1784 
   (set_attr "mode"     "none")
1785 
   (set_attr "length"   "3")])
1786 
 
1787 
(define_insn "*boolfalse"
1788 
  [(set (pc)
1789 
        (if_then_else (match_operator 2 "boolean_operator"
1790 
                         [(match_operand:CC 0 "register_operand" "b")
1791 
                          (const_int 0)])
1792 
                      (pc)
1793 
                      (label_ref (match_operand 1 "" ""))))]
1794 
  "TARGET_BOOLEANS"
1795 
{
1796 
  if (GET_CODE (operands[2]) == EQ)
1797 
    return "bt\t%0, %1";
1798 
  else
1799 
    return "bf\t%0, %1";
1800 
}
1801 
  [(set_attr "type"     "jump")
1802 
   (set_attr "mode"     "none")
1803 
   (set_attr "length"   "3")])
1804 
 
1805 
 
1806 
;; Atomic operations
1807 
 
1808 
(define_expand "memory_barrier"
1809 
  [(set (match_dup 0)
1810 
        (unspec:BLK [(match_dup 0)] UNSPEC_MEMW))]
1811 
  ""
1812 
{
1813 
  operands[0] = gen_rtx_MEM (BLKmode, gen_rtx_SCRATCH (Pmode));
1814 
  MEM_VOLATILE_P (operands[0]) = 1;
1815 
})
1816 
 
1817 
(define_insn "*memory_barrier"
1818 
  [(set (match_operand:BLK 0 "" "")
1819 
        (unspec:BLK [(match_dup 0)] UNSPEC_MEMW))]
1820 
  ""
1821 
  "memw"
1822 
  [(set_attr "type"     "unknown")
1823 
   (set_attr "mode"     "none")
1824 
   (set_attr "length"   "3")])
1825 
 
1826 
;; sync_lock_release is only implemented for SImode.
1827 
;; For other modes, just use the default of a store with a memory_barrier.
1828 
(define_insn "sync_lock_releasesi"
1829 
  [(set (match_operand:SI 0 "mem_operand" "=U")
1830 
        (unspec_volatile:SI
1831 
          [(match_operand:SI 1 "register_operand" "r")]
1832 
          UNSPECV_S32RI))]
1833 
  "TARGET_RELEASE_SYNC"
1834 
  "s32ri\t%1, %0"
1835 
  [(set_attr "type"     "store")
1836 
   (set_attr "mode"     "SI")
1837 
   (set_attr "length"   "3")])
1838 
 
1839 
(define_insn "sync_compare_and_swapsi"
1840 
  [(parallel
1841 
    [(set (match_operand:SI 0 "register_operand" "=a")
1842 
          (match_operand:SI 1 "mem_operand" "+U"))
1843 
     (set (match_dup 1)
1844 
          (unspec_volatile:SI
1845 
            [(match_dup 1)
1846 
             (match_operand:SI 2 "register_operand" "r")
1847 
             (match_operand:SI 3 "register_operand" "0")]
1848 
            UNSPECV_S32C1I))])]
1849 
  "TARGET_S32C1I"
1850 
  "wsr\t%2, SCOMPARE1\;s32c1i\t%3, %1"
1851 
  [(set_attr "type"     "multi")
1852 
   (set_attr "mode"     "SI")
1853 
   (set_attr "length"   "6")])
1854 
 
1855 
(define_expand "sync_compare_and_swap"
1856 
  [(parallel
1857 
    [(set (match_operand:HQI 0 "register_operand" "")
1858 
          (match_operand:HQI 1 "mem_operand" ""))
1859 
     (set (match_dup 1)
1860 
          (unspec_volatile:HQI
1861 
            [(match_dup 1)
1862 
             (match_operand:HQI 2 "register_operand" "")
1863 
             (match_operand:HQI 3 "register_operand" "")]
1864 
            UNSPECV_S32C1I))])]
1865 
  "TARGET_S32C1I"
1866 
{
1867 
  xtensa_expand_compare_and_swap (operands[0], operands[1],
1868 
                                  operands[2], operands[3]);
1869 
  DONE;
1870 
})
1871 
 
1872 
(define_expand "sync_lock_test_and_set"
1873 
  [(match_operand:HQI 0 "register_operand")
1874 
   (match_operand:HQI 1 "memory_operand")
1875 
   (match_operand:HQI 2 "register_operand")]
1876 
  "TARGET_S32C1I"
1877 
{
1878 
  xtensa_expand_atomic (SET, operands[0], operands[1], operands[2], false);
1879 
  DONE;
1880 
})
1881 
 
1882 
(define_expand "sync_"
1883 
  [(set (match_operand:HQI 0 "memory_operand")
1884 
        (ATOMIC:HQI (match_dup 0)
1885 
                    (match_operand:HQI 1 "register_operand")))]
1886 
  "TARGET_S32C1I"
1887 
{
1888 
  xtensa_expand_atomic (, NULL_RTX, operands[0], operands[1], false);
1889 
  DONE;
1890 
})
1891 
 
1892 
(define_expand "sync_old_"
1893 
  [(set (match_operand:HQI 0 "register_operand")
1894 
        (match_operand:HQI 1 "memory_operand"))
1895 
   (set (match_dup 1)
1896 
        (ATOMIC:HQI (match_dup 1)
1897 
                    (match_operand:HQI 2 "register_operand")))]
1898 
  "TARGET_S32C1I"
1899 
{
1900 
  xtensa_expand_atomic (, operands[0], operands[1], operands[2], false);
1901 
  DONE;
1902 
})
1903 
 
1904 
(define_expand "sync_new_"
1905 
  [(set (match_operand:HQI 0 "register_operand")
1906 
        (ATOMIC:HQI (match_operand:HQI 1 "memory_operand")
1907 
                    (match_operand:HQI 2 "register_operand")))
1908 
   (set (match_dup 1) (ATOMIC:HQI (match_dup 1) (match_dup 2)))]
1909 
  "TARGET_S32C1I"
1910 
{
1911 
  xtensa_expand_atomic (, operands[0], operands[1], operands[2], true);
1912 
  DONE;
1913 
})

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