1 ;; GCC machine description for Tensilica's Xtensa architecture.
2 ;; Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
3 ;; Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
5 ;; This file is part of GCC.
7 ;; GCC is free software; you can redistribute it and/or modify it
8 ;; under the terms of the GNU General Public License as published by
9 ;; the Free Software Foundation; either version 2, or (at your option)
12 ;; GCC is distributed in the hope that it will be useful, but WITHOUT
13 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 ;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 ;; License for more details.
17 ;; You should have received a copy of the GNU General Public License
18 ;; along with GCC; see the file COPYING. If not, write to the Free
19 ;; Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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"))
45 "unknown,none,QI,HI,SI,DI,SF,DF,BL"
46 (const_string "unknown"))
48 (define_attr "length" "" (const_int 1))
50 ;; Describe a user's asm statement.
51 (define_asm_attributes
52 [(set_attr "type" "multi")])
57 (define_function_unit "memory" 1 0 (eq_attr "type" "load,fload") 2 0)
59 (define_function_unit "sreg" 1 1 (eq_attr "type" "rsr") 2 0)
61 (define_function_unit "mul16" 1 0 (eq_attr "type" "mul16") 2 0)
63 (define_function_unit "mul32" 1 0 (eq_attr "type" "mul32") 2 0)
65 (define_function_unit "fpmadd" 1 0 (eq_attr "type" "fmadd") 4 0)
67 (define_function_unit "fpconv" 1 0 (eq_attr "type" "fconv") 2 0)
72 (define_expand "adddi3"
73 [(set (match_operand:DI 0 "register_operand" "")
74 (plus:DI (match_operand:DI 1 "register_operand" "")
75 (match_operand:DI 2 "register_operand" "")))]
79 rtx dstlo = gen_lowpart (SImode, operands[0]);
80 rtx src1lo = gen_lowpart (SImode, operands[1]);
81 rtx src2lo = gen_lowpart (SImode, operands[2]);
83 rtx dsthi = gen_highpart (SImode, operands[0]);
84 rtx src1hi = gen_highpart (SImode, operands[1]);
85 rtx src2hi = gen_highpart (SImode, operands[2]);
87 /* Either source can be used for overflow checking, as long as it's
88 not clobbered by the first addition. */
89 if (!rtx_equal_p (dstlo, src1lo))
91 else if (!rtx_equal_p (dstlo, src2lo))
95 srclo = gen_reg_rtx (SImode);
96 emit_move_insn (srclo, src1lo);
99 emit_insn (gen_addsi3 (dstlo, src1lo, src2lo));
100 emit_insn (gen_addsi3 (dsthi, src1hi, src2hi));
101 emit_insn (gen_adddi_carry (dsthi, dstlo, srclo));
105 ;; Represent the add-carry operation as an atomic operation instead of
106 ;; expanding it to a conditional branch. Otherwise, the edge
107 ;; profiling code breaks because inserting the count increment code
108 ;; causes a new jump insn to be added.
110 (define_insn "adddi_carry"
111 [(set (match_operand:SI 0 "register_operand" "+a")
112 (plus:SI (ltu:SI (match_operand:SI 1 "register_operand" "r")
113 (match_operand:SI 2 "register_operand" "r"))
116 "bgeu\t%1, %2, 0f\;addi\t%0, %0, 1\;0:"
117 [(set_attr "type" "multi")
118 (set_attr "mode" "SI")
119 (set_attr "length" "6")])
121 (define_insn "addsi3"
122 [(set (match_operand:SI 0 "register_operand" "=D,D,a,a,a")
123 (plus:SI (match_operand:SI 1 "register_operand" "%d,d,r,r,r")
124 (match_operand:SI 2 "add_operand" "d,O,r,J,N")))]
132 [(set_attr "type" "arith,arith,arith,arith,arith")
133 (set_attr "mode" "SI")
134 (set_attr "length" "2,2,3,3,3")])
136 (define_insn "*addx2"
137 [(set (match_operand:SI 0 "register_operand" "=a")
138 (plus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")
140 (match_operand:SI 2 "register_operand" "r")))]
143 [(set_attr "type" "arith")
144 (set_attr "mode" "SI")
145 (set_attr "length" "3")])
147 (define_insn "*addx4"
148 [(set (match_operand:SI 0 "register_operand" "=a")
149 (plus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")
151 (match_operand:SI 2 "register_operand" "r")))]
154 [(set_attr "type" "arith")
155 (set_attr "mode" "SI")
156 (set_attr "length" "3")])
158 (define_insn "*addx8"
159 [(set (match_operand:SI 0 "register_operand" "=a")
160 (plus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")
162 (match_operand:SI 2 "register_operand" "r")))]
165 [(set_attr "type" "arith")
166 (set_attr "mode" "SI")
167 (set_attr "length" "3")])
169 (define_insn "addsf3"
170 [(set (match_operand:SF 0 "register_operand" "=f")
171 (plus:SF (match_operand:SF 1 "register_operand" "%f")
172 (match_operand:SF 2 "register_operand" "f")))]
175 [(set_attr "type" "fmadd")
176 (set_attr "mode" "SF")
177 (set_attr "length" "3")])
182 (define_expand "subdi3"
183 [(set (match_operand:DI 0 "register_operand" "")
184 (minus:DI (match_operand:DI 1 "register_operand" "")
185 (match_operand:DI 2 "register_operand" "")))]
188 rtx dstlo = gen_lowpart (SImode, operands[0]);
189 rtx src1lo = gen_lowpart (SImode, operands[1]);
190 rtx src2lo = gen_lowpart (SImode, operands[2]);
192 rtx dsthi = gen_highpart (SImode, operands[0]);
193 rtx src1hi = gen_highpart (SImode, operands[1]);
194 rtx src2hi = gen_highpart (SImode, operands[2]);
196 emit_insn (gen_subsi3 (dsthi, src1hi, src2hi));
197 emit_insn (gen_subdi_carry (dsthi, src1lo, src2lo));
198 emit_insn (gen_subsi3 (dstlo, src1lo, src2lo));
202 (define_insn "subdi_carry"
203 [(set (match_operand:SI 0 "register_operand" "+a")
204 (minus:SI (match_dup 0)
205 (ltu:SI (match_operand:SI 1 "register_operand" "r")
206 (match_operand:SI 2 "register_operand" "r"))))]
208 "bgeu\t%1, %2, 0f\;addi\t%0, %0, -1\;0:"
209 [(set_attr "type" "multi")
210 (set_attr "mode" "SI")
211 (set_attr "length" "6")])
213 (define_insn "subsi3"
214 [(set (match_operand:SI 0 "register_operand" "=a")
215 (minus:SI (match_operand:SI 1 "register_operand" "r")
216 (match_operand:SI 2 "register_operand" "r")))]
219 [(set_attr "type" "arith")
220 (set_attr "mode" "SI")
221 (set_attr "length" "3")])
223 (define_insn "*subx2"
224 [(set (match_operand:SI 0 "register_operand" "=a")
225 (minus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")
227 (match_operand:SI 2 "register_operand" "r")))]
230 [(set_attr "type" "arith")
231 (set_attr "mode" "SI")
232 (set_attr "length" "3")])
234 (define_insn "*subx4"
235 [(set (match_operand:SI 0 "register_operand" "=a")
236 (minus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")
238 (match_operand:SI 2 "register_operand" "r")))]
241 [(set_attr "type" "arith")
242 (set_attr "mode" "SI")
243 (set_attr "length" "3")])
245 (define_insn "*subx8"
246 [(set (match_operand:SI 0 "register_operand" "=a")
247 (minus:SI (mult:SI (match_operand:SI 1 "register_operand" "r")
249 (match_operand:SI 2 "register_operand" "r")))]
252 [(set_attr "type" "arith")
253 (set_attr "mode" "SI")
254 (set_attr "length" "3")])
256 (define_insn "subsf3"
257 [(set (match_operand:SF 0 "register_operand" "=f")
258 (minus:SF (match_operand:SF 1 "register_operand" "f")
259 (match_operand:SF 2 "register_operand" "f")))]
262 [(set_attr "type" "fmadd")
263 (set_attr "mode" "SF")
264 (set_attr "length" "3")])
269 (define_insn "mulsi3"
270 [(set (match_operand:SI 0 "register_operand" "=a")
271 (mult:SI (match_operand:SI 1 "register_operand" "%r")
272 (match_operand:SI 2 "register_operand" "r")))]
275 [(set_attr "type" "mul32")
276 (set_attr "mode" "SI")
277 (set_attr "length" "3")])
279 (define_insn "mulhisi3"
280 [(set (match_operand:SI 0 "register_operand" "=C,A")
281 (mult:SI (sign_extend:SI
282 (match_operand:HI 1 "register_operand" "%r,r"))
284 (match_operand:HI 2 "register_operand" "r,r"))))]
285 "TARGET_MUL16 || TARGET_MAC16"
289 [(set_attr "type" "mul16,mac16")
290 (set_attr "mode" "SI")
291 (set_attr "length" "3,3")])
293 (define_insn "umulhisi3"
294 [(set (match_operand:SI 0 "register_operand" "=C,A")
295 (mult:SI (zero_extend:SI
296 (match_operand:HI 1 "register_operand" "%r,r"))
298 (match_operand:HI 2 "register_operand" "r,r"))))]
299 "TARGET_MUL16 || TARGET_MAC16"
303 [(set_attr "type" "mul16,mac16")
304 (set_attr "mode" "SI")
305 (set_attr "length" "3,3")])
307 (define_insn "muladdhisi"
308 [(set (match_operand:SI 0 "register_operand" "=A")
309 (plus:SI (mult:SI (sign_extend:SI
310 (match_operand:HI 1 "register_operand" "%r"))
312 (match_operand:HI 2 "register_operand" "r")))
313 (match_operand:SI 3 "register_operand" "0")))]
316 [(set_attr "type" "mac16")
317 (set_attr "mode" "SI")
318 (set_attr "length" "3")])
320 (define_insn "mulsubhisi"
321 [(set (match_operand:SI 0 "register_operand" "=A")
322 (minus:SI (match_operand:SI 1 "register_operand" "0")
323 (mult:SI (sign_extend:SI
324 (match_operand:HI 2 "register_operand" "%r"))
326 (match_operand:HI 3 "register_operand" "r")))))]
329 [(set_attr "type" "mac16")
330 (set_attr "mode" "SI")
331 (set_attr "length" "3")])
333 (define_insn "mulsf3"
334 [(set (match_operand:SF 0 "register_operand" "=f")
335 (mult:SF (match_operand:SF 1 "register_operand" "%f")
336 (match_operand:SF 2 "register_operand" "f")))]
339 [(set_attr "type" "fmadd")
340 (set_attr "mode" "SF")
341 (set_attr "length" "3")])
343 (define_insn "muladdsf3"
344 [(set (match_operand:SF 0 "register_operand" "=f")
345 (plus:SF (mult:SF (match_operand:SF 1 "register_operand" "%f")
346 (match_operand:SF 2 "register_operand" "f"))
347 (match_operand:SF 3 "register_operand" "0")))]
348 "TARGET_HARD_FLOAT && !TARGET_NO_FUSED_MADD"
350 [(set_attr "type" "fmadd")
351 (set_attr "mode" "SF")
352 (set_attr "length" "3")])
354 (define_insn "mulsubsf3"
355 [(set (match_operand:SF 0 "register_operand" "=f")
356 (minus:SF (match_operand:SF 1 "register_operand" "0")
357 (mult:SF (match_operand:SF 2 "register_operand" "%f")
358 (match_operand:SF 3 "register_operand" "f"))))]
359 "TARGET_HARD_FLOAT && !TARGET_NO_FUSED_MADD"
361 [(set_attr "type" "fmadd")
362 (set_attr "mode" "SF")
363 (set_attr "length" "3")])
368 (define_insn "divsi3"
369 [(set (match_operand:SI 0 "register_operand" "=a")
370 (div:SI (match_operand:SI 1 "register_operand" "r")
371 (match_operand:SI 2 "register_operand" "r")))]
374 [(set_attr "type" "div32")
375 (set_attr "mode" "SI")
376 (set_attr "length" "3")])
378 (define_insn "udivsi3"
379 [(set (match_operand:SI 0 "register_operand" "=a")
380 (udiv:SI (match_operand:SI 1 "register_operand" "r")
381 (match_operand:SI 2 "register_operand" "r")))]
384 [(set_attr "type" "div32")
385 (set_attr "mode" "SI")
386 (set_attr "length" "3")])
388 (define_insn "divsf3"
389 [(set (match_operand:SF 0 "register_operand" "=f")
390 (div:SF (match_operand:SF 1 "register_operand" "f")
391 (match_operand:SF 2 "register_operand" "f")))]
392 "TARGET_HARD_FLOAT_DIV"
394 [(set_attr "type" "fdiv")
395 (set_attr "mode" "SF")
396 (set_attr "length" "3")])
398 (define_insn "*recipsf2"
399 [(set (match_operand:SF 0 "register_operand" "=f")
400 (div:SF (match_operand:SF 1 "const_float_1_operand" "")
401 (match_operand:SF 2 "register_operand" "f")))]
402 "TARGET_HARD_FLOAT_RECIP && flag_unsafe_math_optimizations"
404 [(set_attr "type" "fdiv")
405 (set_attr "mode" "SF")
406 (set_attr "length" "3")])
411 (define_insn "modsi3"
412 [(set (match_operand:SI 0 "register_operand" "=a")
413 (mod:SI (match_operand:SI 1 "register_operand" "r")
414 (match_operand:SI 2 "register_operand" "r")))]
417 [(set_attr "type" "div32")
418 (set_attr "mode" "SI")
419 (set_attr "length" "3")])
421 (define_insn "umodsi3"
422 [(set (match_operand:SI 0 "register_operand" "=a")
423 (umod:SI (match_operand:SI 1 "register_operand" "r")
424 (match_operand:SI 2 "register_operand" "r")))]
427 [(set_attr "type" "div32")
428 (set_attr "mode" "SI")
429 (set_attr "length" "3")])
434 (define_insn "sqrtsf2"
435 [(set (match_operand:SF 0 "register_operand" "=f")
436 (sqrt:SF (match_operand:SF 1 "register_operand" "f")))]
437 "TARGET_HARD_FLOAT_SQRT"
439 [(set_attr "type" "fsqrt")
440 (set_attr "mode" "SF")
441 (set_attr "length" "3")])
443 (define_insn "*rsqrtsf2"
444 [(set (match_operand:SF 0 "register_operand" "=f")
445 (div:SF (match_operand:SF 1 "const_float_1_operand" "")
446 (sqrt:SF (match_operand:SF 2 "register_operand" "f"))))]
447 "TARGET_HARD_FLOAT_RSQRT && flag_unsafe_math_optimizations"
449 [(set_attr "type" "fsqrt")
450 (set_attr "mode" "SF")
451 (set_attr "length" "3")])
456 (define_insn "abssi2"
457 [(set (match_operand:SI 0 "register_operand" "=a")
458 (abs:SI (match_operand:SI 1 "register_operand" "r")))]
461 [(set_attr "type" "arith")
462 (set_attr "mode" "SI")
463 (set_attr "length" "3")])
465 (define_insn "abssf2"
466 [(set (match_operand:SF 0 "register_operand" "=f")
467 (abs:SF (match_operand:SF 1 "register_operand" "f")))]
470 [(set_attr "type" "farith")
471 (set_attr "mode" "SF")
472 (set_attr "length" "3")])
477 (define_insn "sminsi3"
478 [(set (match_operand:SI 0 "register_operand" "=a")
479 (smin:SI (match_operand:SI 1 "register_operand" "%r")
480 (match_operand:SI 2 "register_operand" "r")))]
483 [(set_attr "type" "arith")
484 (set_attr "mode" "SI")
485 (set_attr "length" "3")])
487 (define_insn "uminsi3"
488 [(set (match_operand:SI 0 "register_operand" "=a")
489 (umin:SI (match_operand:SI 1 "register_operand" "%r")
490 (match_operand:SI 2 "register_operand" "r")))]
493 [(set_attr "type" "arith")
494 (set_attr "mode" "SI")
495 (set_attr "length" "3")])
497 (define_insn "smaxsi3"
498 [(set (match_operand:SI 0 "register_operand" "=a")
499 (smax:SI (match_operand:SI 1 "register_operand" "%r")
500 (match_operand:SI 2 "register_operand" "r")))]
503 [(set_attr "type" "arith")
504 (set_attr "mode" "SI")
505 (set_attr "length" "3")])
507 (define_insn "umaxsi3"
508 [(set (match_operand:SI 0 "register_operand" "=a")
509 (umax:SI (match_operand:SI 1 "register_operand" "%r")
510 (match_operand:SI 2 "register_operand" "r")))]
513 [(set_attr "type" "arith")
514 (set_attr "mode" "SI")
515 (set_attr "length" "3")])
520 (define_expand "ffssi2"
521 [(set (match_operand:SI 0 "register_operand" "")
522 (ffs:SI (match_operand:SI 1 "register_operand" "")))]
525 rtx temp = gen_reg_rtx (SImode);
526 emit_insn (gen_negsi2 (temp, operands[1]));
527 emit_insn (gen_andsi3 (temp, temp, operands[1]));
528 emit_insn (gen_nsau (temp, temp));
529 emit_insn (gen_negsi2 (temp, temp));
530 emit_insn (gen_addsi3 (operands[0], temp, GEN_INT (32)));
534 ;; There is no RTL operator corresponding to NSAU.
536 [(set (match_operand:SI 0 "register_operand" "=a")
537 (unspec:SI [(match_operand:SI 1 "register_operand" "r")] UNSPEC_NSAU))]
540 [(set_attr "type" "arith")
541 (set_attr "mode" "SI")
542 (set_attr "length" "3")])
545 ;; Negation and one's complement.
547 (define_insn "negsi2"
548 [(set (match_operand:SI 0 "register_operand" "=a")
549 (neg:SI (match_operand:SI 1 "register_operand" "r")))]
552 [(set_attr "type" "arith")
553 (set_attr "mode" "SI")
554 (set_attr "length" "3")])
556 (define_expand "one_cmplsi2"
557 [(set (match_operand:SI 0 "register_operand" "")
558 (not:SI (match_operand:SI 1 "register_operand" "")))]
561 rtx temp = gen_reg_rtx (SImode);
562 emit_insn (gen_movsi (temp, constm1_rtx));
563 emit_insn (gen_xorsi3 (operands[0], temp, operands[1]));
567 (define_insn "negsf2"
568 [(set (match_operand:SF 0 "register_operand" "=f")
569 (neg:SF (match_operand:SF 1 "register_operand" "f")))]
572 [(set_attr "type" "farith")
573 (set_attr "mode" "SF")
574 (set_attr "length" "3")])
577 ;; Logical instructions.
579 (define_insn "andsi3"
580 [(set (match_operand:SI 0 "register_operand" "=a,a")
581 (and:SI (match_operand:SI 1 "register_operand" "%r,r")
582 (match_operand:SI 2 "mask_operand" "P,r")))]
585 extui\t%0, %1, 0, %K2
587 [(set_attr "type" "arith,arith")
588 (set_attr "mode" "SI")
589 (set_attr "length" "3,3")])
591 (define_insn "iorsi3"
592 [(set (match_operand:SI 0 "register_operand" "=a")
593 (ior:SI (match_operand:SI 1 "register_operand" "%r")
594 (match_operand:SI 2 "register_operand" "r")))]
597 [(set_attr "type" "arith")
598 (set_attr "mode" "SI")
599 (set_attr "length" "3")])
601 (define_insn "xorsi3"
602 [(set (match_operand:SI 0 "register_operand" "=a")
603 (xor:SI (match_operand:SI 1 "register_operand" "%r")
604 (match_operand:SI 2 "register_operand" "r")))]
607 [(set_attr "type" "arith")
608 (set_attr "mode" "SI")
609 (set_attr "length" "3")])
612 ;; Zero-extend instructions.
614 (define_insn "zero_extendhisi2"
615 [(set (match_operand:SI 0 "register_operand" "=a,a")
616 (zero_extend:SI (match_operand:HI 1 "nonimmed_operand" "r,U")))]
621 [(set_attr "type" "arith,load")
622 (set_attr "mode" "SI")
623 (set_attr "length" "3,3")])
625 (define_insn "zero_extendqisi2"
626 [(set (match_operand:SI 0 "register_operand" "=a,a")
627 (zero_extend:SI (match_operand:QI 1 "nonimmed_operand" "r,U")))]
632 [(set_attr "type" "arith,load")
633 (set_attr "mode" "SI")
634 (set_attr "length" "3,3")])
637 ;; Sign-extend instructions.
639 (define_expand "extendhisi2"
640 [(set (match_operand:SI 0 "register_operand" "")
641 (sign_extend:SI (match_operand:HI 1 "register_operand" "")))]
644 if (sext_operand (operands[1], HImode))
645 emit_insn (gen_extendhisi2_internal (operands[0], operands[1]));
647 xtensa_extend_reg (operands[0], operands[1]);
651 (define_insn "extendhisi2_internal"
652 [(set (match_operand:SI 0 "register_operand" "=B,a")
653 (sign_extend:SI (match_operand:HI 1 "sext_operand" "r,U")))]
658 [(set_attr "type" "arith,load")
659 (set_attr "mode" "SI")
660 (set_attr "length" "3,3")])
662 (define_expand "extendqisi2"
663 [(set (match_operand:SI 0 "register_operand" "")
664 (sign_extend:SI (match_operand:QI 1 "register_operand" "")))]
668 emit_insn (gen_extendqisi2_internal (operands[0], operands[1]));
670 xtensa_extend_reg (operands[0], operands[1]);
674 (define_insn "extendqisi2_internal"
675 [(set (match_operand:SI 0 "register_operand" "=B")
676 (sign_extend:SI (match_operand:QI 1 "register_operand" "r")))]
679 [(set_attr "type" "arith")
680 (set_attr "mode" "SI")
681 (set_attr "length" "3")])
684 ;; Field extract instructions.
686 (define_expand "extv"
687 [(set (match_operand:SI 0 "register_operand" "")
688 (sign_extract:SI (match_operand:SI 1 "register_operand" "")
689 (match_operand:SI 2 "const_int_operand" "")
690 (match_operand:SI 3 "const_int_operand" "")))]
693 if (!sext_fldsz_operand (operands[2], SImode))
696 /* We could expand to a right shift followed by SEXT but that's
697 no better than the standard left and right shift sequence. */
698 if (!lsbitnum_operand (operands[3], SImode))
701 emit_insn (gen_extv_internal (operands[0], operands[1],
702 operands[2], operands[3]));
706 (define_insn "extv_internal"
707 [(set (match_operand:SI 0 "register_operand" "=a")
708 (sign_extract:SI (match_operand:SI 1 "register_operand" "r")
709 (match_operand:SI 2 "sext_fldsz_operand" "i")
710 (match_operand:SI 3 "lsbitnum_operand" "i")))]
713 int fldsz = INTVAL (operands[2]);
714 operands[2] = GEN_INT (fldsz - 1);
715 return "sext\t%0, %1, %2";
717 [(set_attr "type" "arith")
718 (set_attr "mode" "SI")
719 (set_attr "length" "3")])
721 (define_expand "extzv"
722 [(set (match_operand:SI 0 "register_operand" "")
723 (zero_extract:SI (match_operand:SI 1 "register_operand" "")
724 (match_operand:SI 2 "const_int_operand" "")
725 (match_operand:SI 3 "const_int_operand" "")))]
728 if (!extui_fldsz_operand (operands[2], SImode))
730 emit_insn (gen_extzv_internal (operands[0], operands[1],
731 operands[2], operands[3]));
735 (define_insn "extzv_internal"
736 [(set (match_operand:SI 0 "register_operand" "=a")
737 (zero_extract:SI (match_operand:SI 1 "register_operand" "r")
738 (match_operand:SI 2 "extui_fldsz_operand" "i")
739 (match_operand:SI 3 "const_int_operand" "i")))]
744 shift = (32 - (INTVAL (operands[2]) + INTVAL (operands[3]))) & 0x1f;
746 shift = INTVAL (operands[3]) & 0x1f;
747 operands[3] = GEN_INT (shift);
748 return "extui\t%0, %1, %3, %2";
750 [(set_attr "type" "arith")
751 (set_attr "mode" "SI")
752 (set_attr "length" "3")])
757 (define_insn "fix_truncsfsi2"
758 [(set (match_operand:SI 0 "register_operand" "=a")
759 (fix:SI (match_operand:SF 1 "register_operand" "f")))]
762 [(set_attr "type" "fconv")
763 (set_attr "mode" "SF")
764 (set_attr "length" "3")])
766 (define_insn "fixuns_truncsfsi2"
767 [(set (match_operand:SI 0 "register_operand" "=a")
768 (unsigned_fix:SI (match_operand:SF 1 "register_operand" "f")))]
770 "utrunc.s\t%0, %1, 0"
771 [(set_attr "type" "fconv")
772 (set_attr "mode" "SF")
773 (set_attr "length" "3")])
775 (define_insn "floatsisf2"
776 [(set (match_operand:SF 0 "register_operand" "=f")
777 (float:SF (match_operand:SI 1 "register_operand" "a")))]
780 [(set_attr "type" "fconv")
781 (set_attr "mode" "SF")
782 (set_attr "length" "3")])
784 (define_insn "floatunssisf2"
785 [(set (match_operand:SF 0 "register_operand" "=f")
786 (unsigned_float:SF (match_operand:SI 1 "register_operand" "a")))]
788 "ufloat.s\t%0, %1, 0"
789 [(set_attr "type" "fconv")
790 (set_attr "mode" "SF")
791 (set_attr "length" "3")])
794 ;; Data movement instructions.
796 ;; 64-bit Integer moves
798 (define_expand "movdi"
799 [(set (match_operand:DI 0 "nonimmed_operand" "")
800 (match_operand:DI 1 "general_operand" ""))]
803 if (CONSTANT_P (operands[1]) && !TARGET_CONST16)
804 operands[1] = force_const_mem (DImode, operands[1]);
806 if (!register_operand (operands[0], DImode)
807 && !register_operand (operands[1], DImode))
808 operands[1] = force_reg (DImode, operands[1]);
810 operands[1] = xtensa_copy_incoming_a7 (operands[1]);
813 (define_insn_and_split "movdi_internal"
814 [(set (match_operand:DI 0 "nonimmed_operand" "=a,W,a,a,U")
815 (match_operand:DI 1 "move_operand" "r,i,T,U,r"))]
816 "register_operand (operands[0], DImode)
817 || register_operand (operands[1], DImode)"
820 [(set (match_dup 0) (match_dup 2))
821 (set (match_dup 1) (match_dup 3))]
823 xtensa_split_operand_pair (operands, SImode);
824 if (reg_overlap_mentioned_p (operands[0], operands[3]))
827 tmp = operands[0], operands[0] = operands[1], operands[1] = tmp;
828 tmp = operands[2], operands[2] = operands[3], operands[3] = tmp;
832 ;; 32-bit Integer moves
834 (define_expand "movsi"
835 [(set (match_operand:SI 0 "nonimmed_operand" "")
836 (match_operand:SI 1 "general_operand" ""))]
839 if (xtensa_emit_move_sequence (operands, SImode))
843 (define_insn "movsi_internal"
844 [(set (match_operand:SI 0 "nonimmed_operand" "=D,D,D,D,R,R,a,q,a,W,a,a,U,*a,*A")
845 (match_operand:SI 1 "move_operand" "M,D,d,R,D,d,r,r,I,i,T,U,r,*A,*r"))]
846 "xtensa_valid_move (SImode, operands)"
857 const16\t%0, %t1\;const16\t%0, %b1
863 [(set_attr "type" "move,move,move,load,store,store,move,move,move,move,load,load,store,rsr,wsr")
864 (set_attr "mode" "SI")
865 (set_attr "length" "2,2,2,2,2,2,3,3,3,6,3,3,3,3,3")])
867 ;; 16-bit Integer moves
869 (define_expand "movhi"
870 [(set (match_operand:HI 0 "nonimmed_operand" "")
871 (match_operand:HI 1 "general_operand" ""))]
874 if (xtensa_emit_move_sequence (operands, HImode))
878 (define_insn "movhi_internal"
879 [(set (match_operand:HI 0 "nonimmed_operand" "=D,D,a,a,a,U,*a,*A")
880 (match_operand:HI 1 "move_operand" "M,d,r,I,U,r,*A,*r"))]
881 "xtensa_valid_move (HImode, operands)"
891 [(set_attr "type" "move,move,move,move,load,store,rsr,wsr")
892 (set_attr "mode" "HI")
893 (set_attr "length" "2,2,3,3,3,3,3,3")])
895 ;; 8-bit Integer moves
897 (define_expand "movqi"
898 [(set (match_operand:QI 0 "nonimmed_operand" "")
899 (match_operand:QI 1 "general_operand" ""))]
902 if (xtensa_emit_move_sequence (operands, QImode))
906 (define_insn "movqi_internal"
907 [(set (match_operand:QI 0 "nonimmed_operand" "=D,D,a,a,a,U,*a,*A")
908 (match_operand:QI 1 "move_operand" "M,d,r,I,U,r,*A,*r"))]
909 "xtensa_valid_move (QImode, operands)"
919 [(set_attr "type" "move,move,move,move,load,store,rsr,wsr")
920 (set_attr "mode" "QI")
921 (set_attr "length" "2,2,3,3,3,3,3,3")])
923 ;; 32-bit floating point moves
925 (define_expand "movsf"
926 [(set (match_operand:SF 0 "nonimmed_operand" "")
927 (match_operand:SF 1 "general_operand" ""))]
930 if (!TARGET_CONST16 && CONSTANT_P (operands[1]))
931 operands[1] = force_const_mem (SFmode, operands[1]);
933 if ((!register_operand (operands[0], SFmode)
934 && !register_operand (operands[1], SFmode))
935 || (FP_REG_P (xt_true_regnum (operands[0]))
936 && !(reload_in_progress | reload_completed)
937 && (constantpool_mem_p (operands[1])
938 || CONSTANT_P (operands[1]))))
939 operands[1] = force_reg (SFmode, operands[1]);
941 operands[1] = xtensa_copy_incoming_a7 (operands[1]);
944 (define_insn "movsf_internal"
945 [(set (match_operand:SF 0 "nonimmed_operand" "=f,f,U,D,D,R,a,f,a,W,a,a,U")
946 (match_operand:SF 1 "move_operand" "f,U,f,d,R,d,r,r,f,iF,T,U,r"))]
947 "((register_operand (operands[0], SFmode)
948 || register_operand (operands[1], SFmode))
949 && !(FP_REG_P (xt_true_regnum (operands[0]))
950 && (constantpool_mem_p (operands[1]) || CONSTANT_P (operands[1]))))"
961 const16\t%0, %t1\;const16\t%0, %b1
965 [(set_attr "type" "farith,fload,fstore,move,load,store,move,farith,farith,move,load,load,store")
966 (set_attr "mode" "SF")
967 (set_attr "length" "3,3,3,2,2,2,3,3,3,6,3,3,3")])
970 [(set (match_operand:SF 0 "register_operand" "=f")
971 (mem:SF (plus:SI (match_operand:SI 1 "register_operand" "+a")
972 (match_operand:SI 2 "fpmem_offset_operand" "i"))))
974 (plus:SI (match_dup 1) (match_dup 2)))]
977 if (volatile_refs_p (PATTERN (insn)))
978 output_asm_insn ("memw", operands);
979 return "lsiu\t%0, %1, %2";
981 [(set_attr "type" "fload")
982 (set_attr "mode" "SF")
983 (set_attr "length" "3")])
986 [(set (mem:SF (plus:SI (match_operand:SI 0 "register_operand" "+a")
987 (match_operand:SI 1 "fpmem_offset_operand" "i")))
988 (match_operand:SF 2 "register_operand" "f"))
990 (plus:SI (match_dup 0) (match_dup 1)))]
993 if (volatile_refs_p (PATTERN (insn)))
994 output_asm_insn ("memw", operands);
995 return "ssiu\t%2, %0, %1";
997 [(set_attr "type" "fstore")
998 (set_attr "mode" "SF")
999 (set_attr "length" "3")])
1001 ;; 64-bit floating point moves
1003 (define_expand "movdf"
1004 [(set (match_operand:DF 0 "nonimmed_operand" "")
1005 (match_operand:DF 1 "general_operand" ""))]
1008 if (CONSTANT_P (operands[1]) && !TARGET_CONST16)
1009 operands[1] = force_const_mem (DFmode, operands[1]);
1011 if (!register_operand (operands[0], DFmode)
1012 && !register_operand (operands[1], DFmode))
1013 operands[1] = force_reg (DFmode, operands[1]);
1015 operands[1] = xtensa_copy_incoming_a7 (operands[1]);
1018 (define_insn_and_split "movdf_internal"
1019 [(set (match_operand:DF 0 "nonimmed_operand" "=a,W,a,a,U")
1020 (match_operand:DF 1 "move_operand" "r,iF,T,U,r"))]
1021 "register_operand (operands[0], DFmode)
1022 || register_operand (operands[1], DFmode)"
1025 [(set (match_dup 0) (match_dup 2))
1026 (set (match_dup 1) (match_dup 3))]
1028 xtensa_split_operand_pair (operands, SFmode);
1029 if (reg_overlap_mentioned_p (operands[0], operands[3]))
1032 tmp = operands[0], operands[0] = operands[1], operands[1] = tmp;
1033 tmp = operands[2], operands[2] = operands[3], operands[3] = tmp;
1039 (define_expand "movstrsi"
1040 [(parallel [(set (match_operand:BLK 0 "" "")
1041 (match_operand:BLK 1 "" ""))
1042 (use (match_operand:SI 2 "arith_operand" ""))
1043 (use (match_operand:SI 3 "const_int_operand" ""))])]
1046 if (!xtensa_expand_block_move (operands))
1051 (define_insn "movstrsi_internal"
1052 [(set (match_operand:BLK 0 "memory_operand" "=U")
1053 (match_operand:BLK 1 "memory_operand" "U"))
1054 (use (match_operand:SI 2 "arith_operand" ""))
1055 (use (match_operand:SI 3 "const_int_operand" ""))
1056 (clobber (match_scratch:SI 4 "=&r"))
1057 (clobber (match_scratch:SI 5 "=&r"))]
1061 tmpregs[0] = operands[4];
1062 tmpregs[1] = operands[5];
1063 xtensa_emit_block_move (operands, tmpregs, 1);
1066 [(set_attr "type" "multi")
1067 (set_attr "mode" "none")
1068 (set_attr "length" "300")])
1071 ;; Shift instructions.
1073 (define_expand "ashlsi3"
1074 [(set (match_operand:SI 0 "register_operand" "")
1075 (ashift:SI (match_operand:SI 1 "register_operand" "")
1076 (match_operand:SI 2 "arith_operand" "")))]
1079 operands[1] = xtensa_copy_incoming_a7 (operands[1]);
1082 (define_insn "ashlsi3_internal"
1083 [(set (match_operand:SI 0 "register_operand" "=a,a")
1084 (ashift:SI (match_operand:SI 1 "register_operand" "r,r")
1085 (match_operand:SI 2 "arith_operand" "J,r")))]
1089 ssl\t%2\;sll\t%0, %1"
1090 [(set_attr "type" "arith,arith")
1091 (set_attr "mode" "SI")
1092 (set_attr "length" "3,6")])
1094 (define_insn "ashrsi3"
1095 [(set (match_operand:SI 0 "register_operand" "=a,a")
1096 (ashiftrt:SI (match_operand:SI 1 "register_operand" "r,r")
1097 (match_operand:SI 2 "arith_operand" "J,r")))]
1101 ssr\t%2\;sra\t%0, %1"
1102 [(set_attr "type" "arith,arith")
1103 (set_attr "mode" "SI")
1104 (set_attr "length" "3,6")])
1106 (define_insn "lshrsi3"
1107 [(set (match_operand:SI 0 "register_operand" "=a,a")
1108 (lshiftrt:SI (match_operand:SI 1 "register_operand" "r,r")
1109 (match_operand:SI 2 "arith_operand" "J,r")))]
1112 if (which_alternative == 0)
1114 if ((INTVAL (operands[2]) & 0x1f) < 16)
1115 return "srli\t%0, %1, %R2";
1117 return "extui\t%0, %1, %R2, %L2";
1119 return "ssr\t%2\;srl\t%0, %1";
1121 [(set_attr "type" "arith,arith")
1122 (set_attr "mode" "SI")
1123 (set_attr "length" "3,6")])
1125 (define_insn "rotlsi3"
1126 [(set (match_operand:SI 0 "register_operand" "=a,a")
1127 (rotate:SI (match_operand:SI 1 "register_operand" "r,r")
1128 (match_operand:SI 2 "arith_operand" "J,r")))]
1131 ssai\t%L2\;src\t%0, %1, %1
1132 ssl\t%2\;src\t%0, %1, %1"
1133 [(set_attr "type" "multi,multi")
1134 (set_attr "mode" "SI")
1135 (set_attr "length" "6,6")])
1137 (define_insn "rotrsi3"
1138 [(set (match_operand:SI 0 "register_operand" "=a,a")
1139 (rotatert:SI (match_operand:SI 1 "register_operand" "r,r")
1140 (match_operand:SI 2 "arith_operand" "J,r")))]
1143 ssai\t%R2\;src\t%0, %1, %1
1144 ssr\t%2\;src\t%0, %1, %1"
1145 [(set_attr "type" "multi,multi")
1146 (set_attr "mode" "SI")
1147 (set_attr "length" "6,6")])
1152 ;; Handle comparisons by stashing away the operands and then using that
1153 ;; information in the subsequent conditional branch.
1155 (define_expand "cmpsi"
1157 (compare:CC (match_operand:SI 0 "register_operand" "")
1158 (match_operand:SI 1 "nonmemory_operand" "")))]
1161 branch_cmp[0] = operands[0];
1162 branch_cmp[1] = operands[1];
1163 branch_type = CMP_SI;
1167 (define_expand "tstsi"
1169 (match_operand:SI 0 "register_operand" ""))]
1172 branch_cmp[0] = operands[0];
1173 branch_cmp[1] = const0_rtx;
1174 branch_type = CMP_SI;
1178 (define_expand "cmpsf"
1180 (compare:CC (match_operand:SF 0 "register_operand" "")
1181 (match_operand:SF 1 "register_operand" "")))]
1184 branch_cmp[0] = operands[0];
1185 branch_cmp[1] = operands[1];
1186 branch_type = CMP_SF;
1191 ;; Conditional branches.
1193 (define_expand "beq"
1195 (if_then_else (eq (cc0) (const_int 0))
1196 (label_ref (match_operand 0 "" ""))
1200 xtensa_expand_conditional_branch (operands, EQ);
1204 (define_expand "bne"
1206 (if_then_else (ne (cc0) (const_int 0))
1207 (label_ref (match_operand 0 "" ""))
1211 xtensa_expand_conditional_branch (operands, NE);
1215 (define_expand "bgt"
1217 (if_then_else (gt (cc0) (const_int 0))
1218 (label_ref (match_operand 0 "" ""))
1222 xtensa_expand_conditional_branch (operands, GT);
1226 (define_expand "bge"
1228 (if_then_else (ge (cc0) (const_int 0))
1229 (label_ref (match_operand 0 "" ""))
1233 xtensa_expand_conditional_branch (operands, GE);
1237 (define_expand "blt"
1239 (if_then_else (lt (cc0) (const_int 0))
1240 (label_ref (match_operand 0 "" ""))
1244 xtensa_expand_conditional_branch (operands, LT);
1248 (define_expand "ble"
1250 (if_then_else (le (cc0) (const_int 0))
1251 (label_ref (match_operand 0 "" ""))
1255 xtensa_expand_conditional_branch (operands, LE);
1259 (define_expand "bgtu"
1261 (if_then_else (gtu (cc0) (const_int 0))
1262 (label_ref (match_operand 0 "" ""))
1266 xtensa_expand_conditional_branch (operands, GTU);
1270 (define_expand "bgeu"
1272 (if_then_else (geu (cc0) (const_int 0))
1273 (label_ref (match_operand 0 "" ""))
1277 xtensa_expand_conditional_branch (operands, GEU);
1281 (define_expand "bltu"
1283 (if_then_else (ltu (cc0) (const_int 0))
1284 (label_ref (match_operand 0 "" ""))
1288 xtensa_expand_conditional_branch (operands, LTU);
1292 (define_expand "bleu"
1294 (if_then_else (leu (cc0) (const_int 0))
1295 (label_ref (match_operand 0 "" ""))
1299 xtensa_expand_conditional_branch (operands, LEU);
1303 ;; Branch patterns for standard integer comparisons
1305 (define_insn "*btrue"
1307 (if_then_else (match_operator 3 "branch_operator"
1308 [(match_operand:SI 0 "register_operand" "r,r")
1309 (match_operand:SI 1 "branch_operand" "K,r")])
1310 (label_ref (match_operand 2 "" ""))
1314 if (which_alternative == 1)
1316 switch (GET_CODE (operands[3]))
1318 case EQ: return "beq\t%0, %1, %2";
1319 case NE: return "bne\t%0, %1, %2";
1320 case LT: return "blt\t%0, %1, %2";
1321 case GE: return "bge\t%0, %1, %2";
1325 else if (INTVAL (operands[1]) == 0)
1327 switch (GET_CODE (operands[3]))
1329 case EQ: return (TARGET_DENSITY
1332 case NE: return (TARGET_DENSITY
1335 case LT: return "bltz\t%0, %2";
1336 case GE: return "bgez\t%0, %2";
1342 switch (GET_CODE (operands[3]))
1344 case EQ: return "beqi\t%0, %d1, %2";
1345 case NE: return "bnei\t%0, %d1, %2";
1346 case LT: return "blti\t%0, %d1, %2";
1347 case GE: return "bgei\t%0, %d1, %2";
1354 [(set_attr "type" "jump,jump")
1355 (set_attr "mode" "none")
1356 (set_attr "length" "3,3")])
1358 (define_insn "*bfalse"
1360 (if_then_else (match_operator 3 "branch_operator"
1361 [(match_operand:SI 0 "register_operand" "r,r")
1362 (match_operand:SI 1 "branch_operand" "K,r")])
1364 (label_ref (match_operand 2 "" ""))))]
1367 if (which_alternative == 1)
1369 switch (GET_CODE (operands[3]))
1371 case EQ: return "bne\t%0, %1, %2";
1372 case NE: return "beq\t%0, %1, %2";
1373 case LT: return "bge\t%0, %1, %2";
1374 case GE: return "blt\t%0, %1, %2";
1378 else if (INTVAL (operands[1]) == 0)
1380 switch (GET_CODE (operands[3]))
1382 case EQ: return (TARGET_DENSITY
1385 case NE: return (TARGET_DENSITY
1388 case LT: return "bgez\t%0, %2";
1389 case GE: return "bltz\t%0, %2";
1395 switch (GET_CODE (operands[3]))
1397 case EQ: return "bnei\t%0, %d1, %2";
1398 case NE: return "beqi\t%0, %d1, %2";
1399 case LT: return "bgei\t%0, %d1, %2";
1400 case GE: return "blti\t%0, %d1, %2";
1407 [(set_attr "type" "jump,jump")
1408 (set_attr "mode" "none")
1409 (set_attr "length" "3,3")])
1411 (define_insn "*ubtrue"
1413 (if_then_else (match_operator 3 "ubranch_operator"
1414 [(match_operand:SI 0 "register_operand" "r,r")
1415 (match_operand:SI 1 "ubranch_operand" "L,r")])
1416 (label_ref (match_operand 2 "" ""))
1420 if (which_alternative == 1)
1422 switch (GET_CODE (operands[3]))
1424 case LTU: return "bltu\t%0, %1, %2";
1425 case GEU: return "bgeu\t%0, %1, %2";
1431 switch (GET_CODE (operands[3]))
1433 case LTU: return "bltui\t%0, %d1, %2";
1434 case GEU: return "bgeui\t%0, %d1, %2";
1441 [(set_attr "type" "jump,jump")
1442 (set_attr "mode" "none")
1443 (set_attr "length" "3,3")])
1445 (define_insn "*ubfalse"
1447 (if_then_else (match_operator 3 "ubranch_operator"
1448 [(match_operand:SI 0 "register_operand" "r,r")
1449 (match_operand:SI 1 "ubranch_operand" "L,r")])
1451 (label_ref (match_operand 2 "" ""))))]
1454 if (which_alternative == 1)
1456 switch (GET_CODE (operands[3]))
1458 case LTU: return "bgeu\t%0, %1, %2";
1459 case GEU: return "bltu\t%0, %1, %2";
1465 switch (GET_CODE (operands[3]))
1467 case LTU: return "bgeui\t%0, %d1, %2";
1468 case GEU: return "bltui\t%0, %d1, %2";
1475 [(set_attr "type" "jump,jump")
1476 (set_attr "mode" "none")
1477 (set_attr "length" "3,3")])
1479 ;; Branch patterns for bit testing
1481 (define_insn "*bittrue"
1483 (if_then_else (match_operator 3 "boolean_operator"
1485 (match_operand:SI 0 "register_operand" "r,r")
1487 (match_operand:SI 1 "arith_operand" "J,r"))
1489 (label_ref (match_operand 2 "" ""))
1493 if (which_alternative == 0)
1495 unsigned bitnum = INTVAL(operands[1]) & 0x1f;
1496 operands[1] = GEN_INT(bitnum);
1497 switch (GET_CODE (operands[3]))
1499 case EQ: return "bbci\t%0, %d1, %2";
1500 case NE: return "bbsi\t%0, %d1, %2";
1506 switch (GET_CODE (operands[3]))
1508 case EQ: return "bbc\t%0, %1, %2";
1509 case NE: return "bbs\t%0, %1, %2";
1516 [(set_attr "type" "jump")
1517 (set_attr "mode" "none")
1518 (set_attr "length" "3")])
1520 (define_insn "*bitfalse"
1522 (if_then_else (match_operator 3 "boolean_operator"
1524 (match_operand:SI 0 "register_operand" "r,r")
1526 (match_operand:SI 1 "arith_operand" "J,r"))
1529 (label_ref (match_operand 2 "" ""))))]
1532 if (which_alternative == 0)
1534 unsigned bitnum = INTVAL (operands[1]) & 0x1f;
1535 operands[1] = GEN_INT (bitnum);
1536 switch (GET_CODE (operands[3]))
1538 case EQ: return "bbsi\t%0, %d1, %2";
1539 case NE: return "bbci\t%0, %d1, %2";
1545 switch (GET_CODE (operands[3]))
1547 case EQ: return "bbs\t%0, %1, %2";
1548 case NE: return "bbc\t%0, %1, %2";
1555 [(set_attr "type" "jump")
1556 (set_attr "mode" "none")
1557 (set_attr "length" "3")])
1559 (define_insn "*masktrue"
1561 (if_then_else (match_operator 3 "boolean_operator"
1562 [(and:SI (match_operand:SI 0 "register_operand" "r")
1563 (match_operand:SI 1 "register_operand" "r"))
1565 (label_ref (match_operand 2 "" ""))
1569 switch (GET_CODE (operands[3]))
1571 case EQ: return "bnone\t%0, %1, %2";
1572 case NE: return "bany\t%0, %1, %2";
1578 [(set_attr "type" "jump")
1579 (set_attr "mode" "none")
1580 (set_attr "length" "3")])
1582 (define_insn "*maskfalse"
1584 (if_then_else (match_operator 3 "boolean_operator"
1585 [(and:SI (match_operand:SI 0 "register_operand" "r")
1586 (match_operand:SI 1 "register_operand" "r"))
1589 (label_ref (match_operand 2 "" ""))))]
1592 switch (GET_CODE (operands[3]))
1594 case EQ: return "bany\t%0, %1, %2";
1595 case NE: return "bnone\t%0, %1, %2";
1601 [(set_attr "type" "jump")
1602 (set_attr "mode" "none")
1603 (set_attr "length" "3")])
1606 ;; Define the loop insns used by bct optimization to represent the
1607 ;; start and end of a zero-overhead loop (in loop.c). This start
1608 ;; template generates the loop insn; the end template doesn't generate
1609 ;; any instructions since loop end is handled in hardware.
1611 (define_insn "zero_cost_loop_start"
1613 (if_then_else (eq (match_operand:SI 0 "register_operand" "a")
1615 (label_ref (match_operand 1 "" ""))
1618 (plus:SI (match_dup 0) (const_int -1)))]
1621 [(set_attr "type" "jump")
1622 (set_attr "mode" "none")
1623 (set_attr "length" "3")])
1625 (define_insn "zero_cost_loop_end"
1627 (if_then_else (ne (reg:SI 19) (const_int 0))
1628 (label_ref (match_operand 0 "" ""))
1631 (plus:SI (reg:SI 19) (const_int -1)))]
1634 xtensa_emit_loop_end (insn, operands);
1637 [(set_attr "type" "jump")
1638 (set_attr "mode" "none")
1639 (set_attr "length" "0")])
1642 ;; Setting a register from a comparison.
1644 (define_expand "seq"
1645 [(set (match_operand:SI 0 "register_operand" "")
1649 operands[1] = gen_rtx_EQ (SImode, branch_cmp[0], branch_cmp[1]);
1650 if (!xtensa_expand_scc (operands))
1655 (define_expand "sne"
1656 [(set (match_operand:SI 0 "register_operand" "")
1660 operands[1] = gen_rtx_NE (SImode, branch_cmp[0], branch_cmp[1]);
1661 if (!xtensa_expand_scc (operands))
1666 (define_expand "sgt"
1667 [(set (match_operand:SI 0 "register_operand" "")
1671 operands[1] = gen_rtx_GT (SImode, branch_cmp[0], branch_cmp[1]);
1672 if (!xtensa_expand_scc (operands))
1677 (define_expand "sge"
1678 [(set (match_operand:SI 0 "register_operand" "")
1682 operands[1] = gen_rtx_GE (SImode, branch_cmp[0], branch_cmp[1]);
1683 if (!xtensa_expand_scc (operands))
1688 (define_expand "slt"
1689 [(set (match_operand:SI 0 "register_operand" "")
1693 operands[1] = gen_rtx_LT (SImode, branch_cmp[0], branch_cmp[1]);
1694 if (!xtensa_expand_scc (operands))
1699 (define_expand "sle"
1700 [(set (match_operand:SI 0 "register_operand" "")
1704 operands[1] = gen_rtx_LE (SImode, branch_cmp[0], branch_cmp[1]);
1705 if (!xtensa_expand_scc (operands))
1711 ;; Conditional moves.
1713 (define_expand "movsicc"
1714 [(set (match_operand:SI 0 "register_operand" "")
1715 (if_then_else:SI (match_operand 1 "comparison_operator" "")
1716 (match_operand:SI 2 "register_operand" "")
1717 (match_operand:SI 3 "register_operand" "")))]
1720 if (!xtensa_expand_conditional_move (operands, 0))
1725 (define_expand "movsfcc"
1726 [(set (match_operand:SF 0 "register_operand" "")
1727 (if_then_else:SF (match_operand 1 "comparison_operator" "")
1728 (match_operand:SF 2 "register_operand" "")
1729 (match_operand:SF 3 "register_operand" "")))]
1732 if (!xtensa_expand_conditional_move (operands, 1))
1737 (define_insn "movsicc_internal0"
1738 [(set (match_operand:SI 0 "register_operand" "=a,a")
1739 (if_then_else:SI (match_operator 4 "branch_operator"
1740 [(match_operand:SI 1 "register_operand" "r,r")
1742 (match_operand:SI 2 "register_operand" "r,0")
1743 (match_operand:SI 3 "register_operand" "0,r")))]
1746 if (which_alternative == 0)
1748 switch (GET_CODE (operands[4]))
1750 case EQ: return "moveqz\t%0, %2, %1";
1751 case NE: return "movnez\t%0, %2, %1";
1752 case LT: return "movltz\t%0, %2, %1";
1753 case GE: return "movgez\t%0, %2, %1";
1759 switch (GET_CODE (operands[4]))
1761 case EQ: return "movnez\t%0, %3, %1";
1762 case NE: return "moveqz\t%0, %3, %1";
1763 case LT: return "movgez\t%0, %3, %1";
1764 case GE: return "movltz\t%0, %3, %1";
1771 [(set_attr "type" "move,move")
1772 (set_attr "mode" "SI")
1773 (set_attr "length" "3,3")])
1775 (define_insn "movsicc_internal1"
1776 [(set (match_operand:SI 0 "register_operand" "=a,a")
1777 (if_then_else:SI (match_operator 4 "boolean_operator"
1778 [(match_operand:CC 1 "register_operand" "b,b")
1780 (match_operand:SI 2 "register_operand" "r,0")
1781 (match_operand:SI 3 "register_operand" "0,r")))]
1784 int isEq = (GET_CODE (operands[4]) == EQ);
1785 switch (which_alternative)
1788 if (isEq) return "movf\t%0, %2, %1";
1789 return "movt\t%0, %2, %1";
1791 if (isEq) return "movt\t%0, %3, %1";
1792 return "movf\t%0, %3, %1";
1797 [(set_attr "type" "move,move")
1798 (set_attr "mode" "SI")
1799 (set_attr "length" "3,3")])
1801 (define_insn "movsfcc_internal0"
1802 [(set (match_operand:SF 0 "register_operand" "=a,a,f,f")
1803 (if_then_else:SF (match_operator 4 "branch_operator"
1804 [(match_operand:SI 1 "register_operand" "r,r,r,r")
1806 (match_operand:SF 2 "register_operand" "r,0,f,0")
1807 (match_operand:SF 3 "register_operand" "0,r,0,f")))]
1810 if (which_alternative == 0)
1812 switch (GET_CODE (operands[4]))
1814 case EQ: return "moveqz\t%0, %2, %1";
1815 case NE: return "movnez\t%0, %2, %1";
1816 case LT: return "movltz\t%0, %2, %1";
1817 case GE: return "movgez\t%0, %2, %1";
1821 else if (which_alternative == 1)
1823 switch (GET_CODE (operands[4]))
1825 case EQ: return "movnez\t%0, %3, %1";
1826 case NE: return "moveqz\t%0, %3, %1";
1827 case LT: return "movgez\t%0, %3, %1";
1828 case GE: return "movltz\t%0, %3, %1";
1832 else if (which_alternative == 2)
1834 switch (GET_CODE (operands[4]))
1836 case EQ: return "moveqz.s %0, %2, %1";
1837 case NE: return "movnez.s %0, %2, %1";
1838 case LT: return "movltz.s %0, %2, %1";
1839 case GE: return "movgez.s %0, %2, %1";
1843 else if (which_alternative == 3)
1845 switch (GET_CODE (operands[4]))
1847 case EQ: return "movnez.s %0, %3, %1";
1848 case NE: return "moveqz.s %0, %3, %1";
1849 case LT: return "movgez.s %0, %3, %1";
1850 case GE: return "movltz.s %0, %3, %1";
1857 [(set_attr "type" "move,move,move,move")
1858 (set_attr "mode" "SF")
1859 (set_attr "length" "3,3,3,3")])
1861 (define_insn "movsfcc_internal1"
1862 [(set (match_operand:SF 0 "register_operand" "=a,a,f,f")
1863 (if_then_else:SF (match_operator 4 "boolean_operator"
1864 [(match_operand:CC 1 "register_operand" "b,b,b,b")
1866 (match_operand:SF 2 "register_operand" "r,0,f,0")
1867 (match_operand:SF 3 "register_operand" "0,r,0,f")))]
1870 int isEq = (GET_CODE (operands[4]) == EQ);
1871 switch (which_alternative)
1874 if (isEq) return "movf\t%0, %2, %1";
1875 return "movt\t%0, %2, %1";
1877 if (isEq) return "movt\t%0, %3, %1";
1878 return "movf\t%0, %3, %1";
1880 if (isEq) return "movf.s\t%0, %2, %1";
1881 return "movt.s\t%0, %2, %1";
1883 if (isEq) return "movt.s\t%0, %3, %1";
1884 return "movf.s\t%0, %3, %1";
1889 [(set_attr "type" "move,move,move,move")
1890 (set_attr "mode" "SF")
1891 (set_attr "length" "3,3,3,3")])
1894 ;; Floating-point comparisons.
1896 (define_insn "seq_sf"
1897 [(set (match_operand:CC 0 "register_operand" "=b")
1898 (eq:CC (match_operand:SF 1 "register_operand" "f")
1899 (match_operand:SF 2 "register_operand" "f")))]
1902 [(set_attr "type" "farith")
1903 (set_attr "mode" "BL")
1904 (set_attr "length" "3")])
1906 (define_insn "slt_sf"
1907 [(set (match_operand:CC 0 "register_operand" "=b")
1908 (lt:CC (match_operand:SF 1 "register_operand" "f")
1909 (match_operand:SF 2 "register_operand" "f")))]
1912 [(set_attr "type" "farith")
1913 (set_attr "mode" "BL")
1914 (set_attr "length" "3")])
1916 (define_insn "sle_sf"
1917 [(set (match_operand:CC 0 "register_operand" "=b")
1918 (le:CC (match_operand:SF 1 "register_operand" "f")
1919 (match_operand:SF 2 "register_operand" "f")))]
1922 [(set_attr "type" "farith")
1923 (set_attr "mode" "BL")
1924 (set_attr "length" "3")])
1927 ;; Unconditional branches.
1931 (label_ref (match_operand 0 "" "")))]
1934 [(set_attr "type" "jump")
1935 (set_attr "mode" "none")
1936 (set_attr "length" "3")])
1938 (define_expand "indirect_jump"
1940 (match_operand 0 "register_operand" ""))]
1943 rtx dest = operands[0];
1944 if (GET_CODE (dest) != REG || GET_MODE (dest) != Pmode)
1945 operands[0] = copy_to_mode_reg (Pmode, dest);
1947 emit_jump_insn (gen_indirect_jump_internal (dest));
1951 (define_insn "indirect_jump_internal"
1952 [(set (pc) (match_operand:SI 0 "register_operand" "r"))]
1955 [(set_attr "type" "jump")
1956 (set_attr "mode" "none")
1957 (set_attr "length" "3")])
1960 (define_expand "tablejump"
1961 [(use (match_operand:SI 0 "register_operand" ""))
1962 (use (label_ref (match_operand 1 "" "")))]
1965 rtx target = operands[0];
1968 /* For PIC, the table entry is relative to the start of the table. */
1969 rtx label = gen_reg_rtx (SImode);
1970 target = gen_reg_rtx (SImode);
1971 emit_move_insn (label, gen_rtx_LABEL_REF (SImode, operands[1]));
1972 emit_insn (gen_addsi3 (target, operands[0], label));
1974 emit_jump_insn (gen_tablejump_internal (target, operands[1]));
1978 (define_insn "tablejump_internal"
1980 (match_operand:SI 0 "register_operand" "r"))
1981 (use (label_ref (match_operand 1 "" "")))]
1984 [(set_attr "type" "jump")
1985 (set_attr "mode" "none")
1986 (set_attr "length" "3")])
1991 (define_expand "sym_PLT"
1992 [(const (unspec [(match_operand:SI 0 "" "")] UNSPEC_PLT))]
1996 (define_expand "call"
1997 [(call (match_operand 0 "memory_operand" "")
1998 (match_operand 1 "" ""))]
2001 rtx addr = XEXP (operands[0], 0);
2002 if (flag_pic && GET_CODE (addr) == SYMBOL_REF && !SYMBOL_REF_LOCAL_P (addr))
2003 addr = gen_sym_PLT (addr);
2004 if (!call_insn_operand (addr, VOIDmode))
2005 XEXP (operands[0], 0) = copy_to_mode_reg (Pmode, addr);
2008 (define_insn "call_internal"
2009 [(call (mem (match_operand:SI 0 "call_insn_operand" "n,i,r"))
2010 (match_operand 1 "" "i,i,i"))]
2013 return xtensa_emit_call (0, operands);
2015 [(set_attr "type" "call")
2016 (set_attr "mode" "none")
2017 (set_attr "length" "3")])
2019 (define_expand "call_value"
2020 [(set (match_operand 0 "register_operand" "")
2021 (call (match_operand 1 "memory_operand" "")
2022 (match_operand 2 "" "")))]
2025 rtx addr = XEXP (operands[1], 0);
2026 if (flag_pic && GET_CODE (addr) == SYMBOL_REF && !SYMBOL_REF_LOCAL_P (addr))
2027 addr = gen_sym_PLT (addr);
2028 if (!call_insn_operand (addr, VOIDmode))
2029 XEXP (operands[1], 0) = copy_to_mode_reg (Pmode, addr);
2032 ;; Cannot combine constraints for operand 0 into "afvb":
2033 ;; reload.c:find_reloads seems to assume that grouped constraints somehow
2034 ;; specify related register classes, and when they don't the constraints
2035 ;; fail to match. By not grouping the constraints, we get the correct
2037 (define_insn "call_value_internal"
2038 [(set (match_operand 0 "register_operand" "=af,af,af,v,v,v,b,b,b")
2039 (call (mem (match_operand:SI 1 "call_insn_operand"
2040 "n,i,r,n,i,r,n,i,r"))
2041 (match_operand 2 "" "i,i,i,i,i,i,i,i,i")))]
2044 return xtensa_emit_call (1, operands);
2046 [(set_attr "type" "call")
2047 (set_attr "mode" "none")
2048 (set_attr "length" "3")])
2050 (define_insn "entry"
2051 [(set (reg:SI A1_REG)
2052 (unspec_volatile:SI [(match_operand:SI 0 "const_int_operand" "i")
2053 (match_operand:SI 1 "const_int_operand" "i")]
2057 if (frame_pointer_needed)
2058 output_asm_insn (".frame\ta7, %0", operands);
2060 output_asm_insn (".frame\tsp, %0", operands);
2061 return "entry\tsp, %1";
2063 [(set_attr "type" "move")
2064 (set_attr "mode" "SI")
2065 (set_attr "length" "3")])
2067 (define_insn "return"
2069 (use (reg:SI A0_REG))]
2072 return (TARGET_DENSITY ? "retw.n" : "retw");
2074 [(set_attr "type" "jump")
2075 (set_attr "mode" "none")
2076 (set_attr "length" "2")])
2079 ;; Miscellaneous instructions.
2081 (define_expand "prologue"
2085 xtensa_expand_prologue ();
2089 (define_expand "epilogue"
2093 emit_jump_insn (gen_return ());
2101 return (TARGET_DENSITY ? "nop.n" : "nop");
2103 [(set_attr "type" "nop")
2104 (set_attr "mode" "none")
2105 (set_attr "length" "3")])
2107 (define_expand "nonlocal_goto"
2108 [(match_operand:SI 0 "general_operand" "")
2109 (match_operand:SI 1 "general_operand" "")
2110 (match_operand:SI 2 "general_operand" "")
2111 (match_operand:SI 3 "" "")]
2114 xtensa_expand_nonlocal_goto (operands);
2118 ;; Setting up a frame pointer is tricky for Xtensa because GCC doesn't
2119 ;; know if a frame pointer is required until the reload pass, and
2120 ;; because there may be an incoming argument value in the hard frame
2121 ;; pointer register (a7). If there is an incoming argument in that
2122 ;; register, the "set_frame_ptr" insn gets inserted immediately after
2123 ;; the insn that copies the incoming argument to a pseudo or to the
2124 ;; stack. This serves several purposes here: (1) it keeps the
2125 ;; optimizer from copy-propagating or scheduling the use of a7 as an
2126 ;; incoming argument away from the beginning of the function; (2) we
2127 ;; can use a post-reload splitter to expand away the insn if a frame
2128 ;; pointer is not required, so that the post-reload scheduler can do
2129 ;; the right thing; and (3) it makes it easy for the prologue expander
2130 ;; to search for this insn to determine whether it should add a new insn
2131 ;; to set up the frame pointer.
2133 (define_insn "set_frame_ptr"
2134 [(set (reg:SI A7_REG) (unspec_volatile:SI [(const_int 0)] UNSPECV_SET_FP))]
2137 if (frame_pointer_needed)
2138 return "mov\ta7, sp";
2141 [(set_attr "type" "move")
2142 (set_attr "mode" "SI")
2143 (set_attr "length" "3")])
2145 ;; Post-reload splitter to remove fp assignment when it's not needed.
2147 [(set (reg:SI A7_REG) (unspec_volatile:SI [(const_int 0)] UNSPECV_SET_FP))]
2148 "reload_completed && !frame_pointer_needed"
2149 [(unspec [(const_int 0)] UNSPEC_NOP)]
2152 ;; The preceding splitter needs something to split the insn into;
2153 ;; things start breaking if the result is just a "use" so instead we
2154 ;; generate the following insn.
2155 (define_insn "*unspec_nop"
2156 [(unspec [(const_int 0)] UNSPEC_NOP)]
2159 [(set_attr "type" "nop")
2160 (set_attr "mode" "none")
2161 (set_attr "length" "0")])
2163 ;; The fix_return_addr pattern sets the high 2 bits of an address in a
2164 ;; register to match the high bits of the current PC.
2165 (define_insn "fix_return_addr"
2166 [(set (match_operand:SI 0 "register_operand" "=a")
2167 (unspec:SI [(match_operand:SI 1 "register_operand" "r")]
2169 (clobber (match_scratch:SI 2 "=r"))
2170 (clobber (match_scratch:SI 3 "=r"))]
2172 "mov\t%2, a0\;call0\t0f\;.align\t4\;0:\;mov\t%3, a0\;mov\ta0, %2\;\
2173 srli\t%3, %3, 30\;slli\t%0, %1, 2\;ssai\t2\;src\t%0, %3, %0"
2174 [(set_attr "type" "multi")
2175 (set_attr "mode" "SI")
2176 (set_attr "length" "24")])
2179 ;; Instructions for the Xtensa "boolean" option.
2181 (define_insn "*booltrue"
2183 (if_then_else (match_operator 2 "boolean_operator"
2184 [(match_operand:CC 0 "register_operand" "b")
2186 (label_ref (match_operand 1 "" ""))
2190 if (GET_CODE (operands[2]) == EQ)
2191 return "bf\t%0, %1";
2193 return "bt\t%0, %1";
2195 [(set_attr "type" "jump")
2196 (set_attr "mode" "none")
2197 (set_attr "length" "3")])
2199 (define_insn "*boolfalse"
2201 (if_then_else (match_operator 2 "boolean_operator"
2202 [(match_operand:CC 0 "register_operand" "b")
2205 (label_ref (match_operand 1 "" ""))))]
2208 if (GET_CODE (operands[2]) == EQ)
2209 return "bt\t%0, %1";
2211 return "bf\t%0, %1";
2213 [(set_attr "type" "jump")
2214 (set_attr "mode" "none")
2215 (set_attr "length" "3")])