3 ;; FR30 machine description.
4 ;; Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
5 ;; Contributed by Cygnus Solutions.
7 ;; This file is part of GNU CC.
9 ;; GNU CC is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; GNU CC is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU CC; see the file COPYING. If not, write to
21 ;; the Free Software Foundation, 59 Temple Place - Suite 330,
22 ;; Boston, MA 02111-1307, USA.
24 ;;- See file "rtl.def" for documentation on define_insn, match_*, et. al.
29 (define_attr "length" "" (const_int 2))
31 ;; Used to distinguish between small memory model targets and big mode targets.
33 (define_attr "size" "small,big"
34 (const (if_then_else (symbol_ref "TARGET_SMALL_MODEL")
35 (const_string "small")
36 (const_string "big"))))
39 ;; Define an attribute to be used by the delay slot code.
40 ;; An instruction by default is considered to be 'delyabable'
41 ;; that is, it can be placed into a delay slot, but it is not
42 ;; itself an delyaed branch type instruction. An instruction
43 ;; whoes type is 'delayed' is one which has a delay slot, and
44 ;; an instruction whoes delay_type is 'other' is one which does
45 ;; not have a delay slot, nor can it be placed into a delay slot.
47 (define_attr "delay_type" "delayable,delayed,other" (const_string "delayable"))
50 ;;{{{ Delay Slot Specifications
52 (define_delay (eq_attr "delay_type" "delayed")
53 [(and (eq_attr "delay_type" "delayable")
54 (eq_attr "length" "2"))
64 ;; Wrap moves in define_expand to prevent memory->memory moves from being
65 ;; generated at the RTL level, which generates better code for most machines
66 ;; which can't do mem->mem moves.
68 ;; If operand 0 is a `subreg' with mode M of a register whose own mode is wider
69 ;; than M, the effect of this instruction is to store the specified value in
70 ;; the part of the register that corresponds to mode M. The effect on the rest
71 ;; of the register is undefined.
73 ;; This class of patterns is special in several ways. First of all, each of
74 ;; these names *must* be defined, because there is no other way to copy a datum
75 ;; from one place to another.
77 ;; Second, these patterns are not used solely in the RTL generation pass. Even
78 ;; the reload pass can generate move insns to copy values from stack slots into
79 ;; temporary registers. When it does so, one of the operands is a hard
80 ;; register and the other is an operand that can need to be reloaded into a
83 ;; Therefore, when given such a pair of operands, the pattern must
84 ;; generate RTL which needs no reloading and needs no temporary
85 ;; registers--no registers other than the operands. For example, if
86 ;; you support the pattern with a `define_expand', then in such a
87 ;; case the `define_expand' mustn't call `force_reg' or any other such
88 ;; function which might generate new pseudo registers.
90 ;; This requirement exists even for subword modes on a RISC machine
91 ;; where fetching those modes from memory normally requires several
92 ;; insns and some temporary registers. Look in `spur.md' to see how
93 ;; the requirement can be satisfied.
95 ;; During reload a memory reference with an invalid address may be passed as an
96 ;; operand. Such an address will be replaced with a valid address later in the
97 ;; reload pass. In this case, nothing may be done with the address except to
98 ;; use it as it stands. If it is copied, it will not be replaced with a valid
99 ;; address. No attempt should be made to make such an address into a valid
100 ;; address and no routine (such as `change_address') that will do so may be
101 ;; called. Note that `general_operand' will fail when applied to such an
104 ;; The global variable `reload_in_progress' (which must be explicitly declared
105 ;; if required) can be used to determine whether such special handling is
108 ;; The variety of operands that have reloads depends on the rest of
109 ;; the machine description, but typically on a RISC machine these can
110 ;; only be pseudo registers that did not get hard registers, while on
111 ;; other machines explicit memory references will get optional
114 ;; If a scratch register is required to move an object to or from memory, it
115 ;; can be allocated using `gen_reg_rtx' prior to reload. But this is
116 ;; impossible during and after reload. If there are cases needing scratch
117 ;; registers after reload, you must define `SECONDARY_INPUT_RELOAD_CLASS' and
118 ;; perhaps also `SECONDARY_OUTPUT_RELOAD_CLASS' to detect them, and provide
119 ;; patterns `reload_inM' or `reload_outM' to handle them.
121 ;; The constraints on a `moveM' must permit moving any hard register to any
122 ;; other hard register provided that `HARD_REGNO_MODE_OK' permits mode M in
123 ;; both registers and `REGISTER_MOVE_COST' applied to their classes returns a
126 ;; It is obligatory to support floating point `moveM' instructions
127 ;; into and out of any registers that can hold fixed point values,
128 ;; because unions and structures (which have modes `SImode' or
129 ;; `DImode') can be in those registers and they may have floating
132 ;; There may also be a need to support fixed point `moveM' instructions in and
133 ;; out of floating point registers. Unfortunately, I have forgotten why this
134 ;; was so, and I don't know whether it is still true. If `HARD_REGNO_MODE_OK'
135 ;; rejects fixed point values in floating point registers, then the constraints
136 ;; of the fixed point `moveM' instructions must be designed to avoid ever
137 ;; trying to reload into a floating point register.
142 ;; Push a register onto the stack
143 (define_insn "movsi_push"
144 [(set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
145 (match_operand:SI 0 "register_operand" "a"))]
150 ;; Pop a register off the stack
151 (define_insn "movsi_pop"
152 [(set:SI (match_operand:SI 0 "register_operand" "=a")
153 (mem:SI (post_inc:SI (reg:SI 15))))]
161 (define_expand "movqi"
162 [(set (match_operand:QI 0 "general_operand" "")
163 (match_operand:QI 1 "general_operand" ""))]
167 if (!reload_in_progress
169 && GET_CODE (operands[0]) == MEM
170 && (GET_CODE (operands[1]) == MEM
171 || immediate_operand (operands[1], QImode)))
172 operands[1] = copy_to_mode_reg (QImode, operands[1]);
175 (define_insn "movqi_unsigned_register_load"
176 [(set (match_operand:SI 0 "register_operand" "=r")
177 (zero_extend:SI (match_operand:QI 1 "memory_operand" "m")))]
182 (define_expand "movqi_signed_register_load"
183 [(set (match_operand:SI 0 "register_operand" "")
184 (sign_extend:SI (match_operand:QI 1 "memory_operand" "")))]
187 emit_insn (gen_movqi_unsigned_register_load (operands[0], operands[1]));
188 emit_insn (gen_extendqisi2 (operands[0], operands[0]));
193 (define_insn "*movqi_internal"
194 [(set (match_operand:QI 0 "nonimmediate_operand" "=r,red,m,r")
195 (match_operand:QI 1 "general_operand" "i,red,r,rm"))]
207 (define_expand "movhi"
208 [(set (match_operand:HI 0 "general_operand" "")
209 (match_operand:HI 1 "general_operand" ""))]
213 if (!reload_in_progress
215 && GET_CODE (operands[0]) == MEM
216 && (GET_CODE (operands[1]) == MEM
217 || immediate_operand (operands[1], HImode)))
218 operands[1] = copy_to_mode_reg (HImode, operands[1]);
221 (define_insn "movhi_unsigned_register_load"
222 [(set (match_operand:SI 0 "register_operand" "=r")
223 (zero_extend:SI (match_operand:HI 1 "memory_operand" "m")))]
228 (define_expand "movhi_signed_register_load"
229 [(set (match_operand:SI 0 "register_operand" "")
230 (sign_extend:SI (match_operand:HI 1 "memory_operand" "")))]
233 emit_insn (gen_movhi_unsigned_register_load (operands[0], operands[1]));
234 emit_insn (gen_extendhisi2 (operands[0], operands[0]));
239 (define_insn "*movhi_internal"
240 [(set (match_operand:HI 0 "nonimmediate_operand" "=r,r,r,red,m,r")
241 (match_operand:HI 1 "general_operand" "L,M,n,red,r,rm"))]
250 [(set_attr "length" "*,4,6,*,*,*")]
256 ;; If the destination is a MEM and the source is a
257 ;; MEM or an CONST_INT move the source into a register.
258 (define_expand "movsi"
259 [(set (match_operand:SI 0 "nonimmediate_operand" "")
260 (match_operand:SI 1 "general_operand" ""))]
263 if (!reload_in_progress
265 && GET_CODE(operands[0]) == MEM
266 && (GET_CODE (operands[1]) == MEM
267 || immediate_operand (operands[1], SImode)))
268 operands[1] = copy_to_mode_reg (SImode, operands[1]);
272 ;; We can do some clever tricks when loading certain immediate
273 ;; values. We implement these tricks as define_splits, rather
274 ;; than putting the code into the define_expand "movsi" above,
275 ;; because if we put them there, they will be evaluated at RTL
276 ;; generation time and then the combiner pass will come along
277 ;; and replace the multiple insns that have been generated with
278 ;; the original, slower, load insns. (The combiner pass only
279 ;; cares about reducing the number of instructions, it does not
280 ;; care about instruction lengths or speeds). Splits are
281 ;; evaluated after the combine pass and before the scheduling
282 ;; passes, so that they are the perfect place to put this
285 ;; XXX we probably ought to implement these for QI and HI mode
288 ;; If we are loading a small negative constant we can save space
289 ;; and time by loading the positive value and then sign extending it.
291 [(set (match_operand:SI 0 "register_operand" "")
292 (match_operand:SI 1 "immediate_operand" ""))]
293 "INTVAL (operands[1]) <= -1 && INTVAL (operands[1]) >= -128"
294 [(set:SI (match_dup 0) (match_dup 2))
295 (set:SI (match_dup 0) (sign_extend:SI (subreg:QI (match_dup 0) 0)))]
297 operands[2] = GEN_INT (INTVAL (operands[1]) & 0xff);
301 ;; If we are loading a large negative constant, one which does
302 ;; not have any of its bottom 24 bit set, then we can save time
303 ;; and space by loading the byte value and shifting it into place.
305 [(set (match_operand:SI 0 "register_operand" "")
306 (match_operand:SI 1 "immediate_operand" ""))]
307 "(INTVAL (operands[1]) < 0) && ((INTVAL (operands[1]) & 0x00ffffff) == 0)"
308 [(set:SI (match_dup 0) (match_dup 2))
309 (parallel [(set:SI (match_dup 0) (ashift:SI (match_dup 0) (const_int 24)))
310 (clobber (reg:CC 16))])]
312 HOST_WIDE_INT val = INTVAL (operands[1]);
313 operands[2] = GEN_INT (val >> 24);
317 ;; If we are loading a large positive constant, one which has bits
318 ;; in the top byte set, but whoes set bits all lie within an 8 bit
319 ;; range, then we can save time and space by loading the byte value
320 ;; and shifting it into place.
322 [(set (match_operand:SI 0 "register_operand" "")
323 (match_operand:SI 1 "immediate_operand" ""))]
324 "(INTVAL (operands[1]) > 0x00ffffff)
325 && ((INTVAL (operands[1]) >> exact_log2 (INTVAL (operands[1]) & (- INTVAL (operands[1])))) < 0x100)"
326 [(set:SI (match_dup 0) (match_dup 2))
327 (parallel [(set:SI (match_dup 0) (ashift:SI (match_dup 0) (match_dup 3)))
328 (clobber (reg:CC 16))])]
330 HOST_WIDE_INT val = INTVAL (operands[1]);
331 int shift = exact_log2 (val & ( - val));
332 operands[2] = GEN_INT (val >> shift);
333 operands[3] = GEN_INT (shift);
337 ;; When TARGET_SMALL_MODEL is defined we assume that all symbolic
338 ;; values are addresses which will fit in 20 bits.
340 (define_insn "movsi_internal"
341 [(set (match_operand:SI 0 "nonimmediate_operand" "=r,r,r,r,red,m,r")
342 (match_operand:SI 1 "general_operand" "L,M,n,i,rde,r,rm"))]
346 switch (which_alternative)
348 case 0: return \"ldi:8 \\t#%1, %0\";
349 case 1: return \"ldi:20\\t#%1, %0\";
350 case 2: return \"ldi:32\\t#%1, %0\";
351 case 3: if (TARGET_SMALL_MODEL)
352 return \"ldi:20\\t%1, %0\";
354 return \"ldi:32\\t%1, %0\";
355 case 4: return \"mov \\t%1, %0\";
356 case 5: return \"st \\t%1, %0\";
357 case 6: return \"ld \\t%1, %0\";
361 [(set (attr "length") (cond [(eq_attr "alternative" "1") (const_int 4)
362 (eq_attr "alternative" "2") (const_int 6)
363 (eq_attr "alternative" "3")
364 (if_then_else (eq_attr "size" "small")
373 ;; Note - the FR30 does not have an 8 byte load/store instruction
374 ;; but we have to support this pattern because some other patterns
375 ;; (eg muldisi2) can produce a DImode result.
376 ;; (This code is stolen from the M32R port.)
378 (define_expand "movdi"
379 [(set (match_operand:DI 0 "general_operand" "")
380 (match_operand:DI 1 "general_operand" ""))]
383 /* Everything except mem = const or mem = mem can be done easily. */
385 if (GET_CODE (operands[0]) == MEM)
386 operands[1] = force_reg (DImode, operands[1]);
389 ;; We use an insn and a split so that we can generate
390 ;; RTL rather than text from fr30_move_double().
392 (define_insn "*movdi_insn"
393 [(set (match_operand:DI 0 "nonimmediate_di_operand" "=r,r,m,r")
394 (match_operand:DI 1 "di_operand" "r,m,r,nF"))]
395 "register_operand (operands[0], DImode) || register_operand (operands[1], DImode)"
397 [(set_attr "length" "4,8,12,12")]
401 [(set (match_operand:DI 0 "nonimmediate_di_operand" "")
402 (match_operand:DI 1 "di_operand" ""))]
405 "operands[2] = fr30_move_double (operands);")
408 ;;{{{ Load & Store Multiple Registers
410 ;; The load multiple and store multiple patterns are implemented
411 ;; as peepholes because the only time they are expected to occur
412 ;; is during function prologues and epilogues.
415 [(set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
416 (match_operand:SI 0 "high_register_operand" "h"))
417 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
418 (match_operand:SI 1 "high_register_operand" "h"))
419 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
420 (match_operand:SI 2 "high_register_operand" "h"))
421 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
422 (match_operand:SI 3 "high_register_operand" "h"))]
423 "fr30_check_multiple_regs (operands, 4, 1)"
424 "stm1 (%0, %1, %2, %3)"
425 [(set_attr "delay_type" "other")]
429 [(set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
430 (match_operand:SI 0 "high_register_operand" "h"))
431 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
432 (match_operand:SI 1 "high_register_operand" "h"))
433 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
434 (match_operand:SI 2 "high_register_operand" "h"))]
435 "fr30_check_multiple_regs (operands, 3, 1)"
437 [(set_attr "delay_type" "other")]
441 [(set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
442 (match_operand:SI 0 "high_register_operand" "h"))
443 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
444 (match_operand:SI 1 "high_register_operand" "h"))]
445 "fr30_check_multiple_regs (operands, 2, 1)"
447 [(set_attr "delay_type" "other")]
451 [(set:SI (match_operand:SI 0 "high_register_operand" "h")
452 (mem:SI (post_inc:SI (reg:SI 15))))
453 (set:SI (match_operand:SI 1 "high_register_operand" "h")
454 (mem:SI (post_inc:SI (reg:SI 15))))
455 (set:SI (match_operand:SI 2 "high_register_operand" "h")
456 (mem:SI (post_inc:SI (reg:SI 15))))
457 (set:SI (match_operand:SI 3 "high_register_operand" "h")
458 (mem:SI (post_inc:SI (reg:SI 15))))]
459 "fr30_check_multiple_regs (operands, 4, 0)"
460 "ldm1 (%0, %1, %2, %3)"
461 [(set_attr "delay_type" "other")]
465 [(set:SI (match_operand:SI 0 "high_register_operand" "h")
466 (mem:SI (post_inc:SI (reg:SI 15))))
467 (set:SI (match_operand:SI 1 "high_register_operand" "h")
468 (mem:SI (post_inc:SI (reg:SI 15))))
469 (set:SI (match_operand:SI 2 "high_register_operand" "h")
470 (mem:SI (post_inc:SI (reg:SI 15))))]
471 "fr30_check_multiple_regs (operands, 3, 0)"
473 [(set_attr "delay_type" "other")]
477 [(set:SI (match_operand:SI 0 "high_register_operand" "h")
478 (mem:SI (post_inc:SI (reg:SI 15))))
479 (set:SI (match_operand:SI 1 "high_register_operand" "h")
480 (mem:SI (post_inc:SI (reg:SI 15))))]
481 "fr30_check_multiple_regs (operands, 2, 0)"
483 [(set_attr "delay_type" "other")]
487 [(set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
488 (match_operand:SI 0 "low_register_operand" "l"))
489 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
490 (match_operand:SI 1 "low_register_operand" "l"))
491 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
492 (match_operand:SI 2 "low_register_operand" "l"))
493 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
494 (match_operand:SI 3 "low_register_operand" "l"))]
495 "fr30_check_multiple_regs (operands, 4, 1)"
496 "stm0 (%0, %1, %2, %3)"
497 [(set_attr "delay_type" "other")]
501 [(set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
502 (match_operand:SI 0 "low_register_operand" "l"))
503 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
504 (match_operand:SI 1 "low_register_operand" "l"))
505 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
506 (match_operand:SI 2 "low_register_operand" "l"))]
507 "fr30_check_multiple_regs (operands, 3, 1)"
509 [(set_attr "delay_type" "other")]
513 [(set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
514 (match_operand:SI 0 "low_register_operand" "l"))
515 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
516 (match_operand:SI 1 "low_register_operand" "l"))]
517 "fr30_check_multiple_regs (operands, 2, 1)"
519 [(set_attr "delay_type" "other")]
523 ;;{{{ Floating Point Moves
525 ;; Note - Patterns for SF mode moves are compulsory, but
526 ;; patterns for DF are optional, as GCC can synthesise them.
528 (define_expand "movsf"
529 [(set (match_operand:SF 0 "general_operand" "")
530 (match_operand:SF 1 "general_operand" ""))]
533 if (!reload_in_progress && !reload_completed
534 && memory_operand (operands[0], SFmode)
535 && memory_operand (operands[1], SFmode))
536 operands[1] = copy_to_mode_reg (SFmode, operands[1]);
540 (define_insn "*movsf_internal"
541 [(set (match_operand:SF 0 "nonimmediate_operand" "=r,r,red,m,r")
542 (match_operand:SF 1 "general_operand" "Fn,i,rde,r,rm"))]
546 switch (which_alternative)
548 case 0: return \"ldi:32\\t%1, %0\";
549 case 1: if (TARGET_SMALL_MODEL)
550 return \"ldi:20\\t%1, %0\";
552 return \"ldi:32\\t%1, %0\";
553 case 2: return \"mov \\t%1, %0\";
554 case 3: return \"st \\t%1, %0\";
555 case 4: return \"ld \\t%1, %0\";
559 [(set (attr "length") (cond [(eq_attr "alternative" "0") (const_int 6)
560 (eq_attr "alternative" "1")
561 (if_then_else (eq_attr "size" "small")
567 (define_insn "*movsf_constant_store"
568 [(set (match_operand:SF 0 "memory_operand" "=m")
569 (match_operand:SF 1 "immediate_operand" "F"))]
574 const char * tmp_reg;
575 static char buffer[100];
578 REAL_VALUE_FROM_CONST_DOUBLE (d, operands[1]);
580 if (REAL_VALUES_EQUAL (d, dconst0))
581 ldi_instr = \"ldi:8\";
583 ldi_instr = \"ldi:32\";
585 tmp_reg = reg_names [COMPILER_SCRATCH_REGISTER];
587 sprintf (buffer, \"%s\\t#%%1, %s\\t;\\n\\tst\\t%s, %%0\\t; Created by movsf_constant_store\",
588 ldi_instr, tmp_reg, tmp_reg);
592 [(set_attr "length" "8")]
600 ;; Signed conversions from a smaller integer to a larger integer
602 (define_insn "extendqisi2"
603 [(set (match_operand:SI 0 "register_operand" "=r")
604 (sign_extend:SI (match_operand:QI 1 "register_operand" "0")))]
609 (define_insn "extendhisi2"
610 [(set (match_operand:SI 0 "register_operand" "=r")
611 (sign_extend:SI (match_operand:HI 1 "register_operand" "0")))]
616 ;; Unsigned conversions from a smaller integer to a larger integer
618 (define_insn "zero_extendqisi2"
619 [(set (match_operand:SI 0 "register_operand" "=r")
620 (zero_extend:SI (match_operand:QI 1 "register_operand" "0")))]
625 (define_insn "zero_extendhisi2"
626 [(set (match_operand:SI 0 "register_operand" "=r")
627 (zero_extend:SI (match_operand:HI 1 "register_operand" "0")))]
637 ;; This is a special pattern just for adjusting the stack size.
638 (define_insn "add_to_stack"
641 (match_operand:SI 0 "stack_add_operand" "i")))]
646 ;; We need some trickery to be able to handle the addition of
647 ;; large (ie outside +/- 16) constants. We need to be able to
648 ;; handle this because reload assumes that it can generate add
649 ;; instructions with arbitary sized constants.
650 (define_expand "addsi3"
651 [(set (match_operand:SI 0 "register_operand" "")
652 (plus:SI (match_operand:SI 1 "register_operand" "")
653 (match_operand:SI 2 "nonmemory_operand" "")))]
656 if ( GET_CODE (operands[2]) == REG
657 || GET_CODE (operands[2]) == SUBREG)
658 emit_insn (gen_addsi_regs (operands[0], operands[1], operands[2]));
659 else if (GET_CODE (operands[2]) != CONST_INT)
660 emit_insn (gen_addsi_big_int (operands[0], operands[1], operands[2]));
661 else if ( (REGNO (operands[1]) != FRAME_POINTER_REGNUM)
662 && (REGNO (operands[1]) != ARG_POINTER_REGNUM)
663 && (INTVAL (operands[2]) >= -16)
664 && (INTVAL (operands[2]) <= 15))
665 emit_insn (gen_addsi_small_int (operands[0], operands[1], operands[2]));
667 emit_insn (gen_addsi_big_int (operands[0], operands[1], operands[2]));
672 (define_insn "addsi_regs"
673 [(set (match_operand:SI 0 "register_operand" "=r")
674 (plus:SI (match_operand:SI 1 "register_operand" "%0")
675 (match_operand:SI 2 "register_operand" "r")))]
680 ;; Do not allow an eliminable register in the source register. It
681 ;; might be eliminated in favour of the stack pointer, probably
682 ;; increasing the offset, and so rendering the instruction illegal.
683 (define_insn "addsi_small_int"
684 [(set (match_operand:SI 0 "register_operand" "=r,r")
685 (plus:SI (match_operand:SI 1 "register_operand" "0,0")
686 (match_operand:SI 2 "add_immediate_operand" "I,J")))]
687 " (REGNO (operands[1]) != FRAME_POINTER_REGNUM)
688 && (REGNO (operands[1]) != ARG_POINTER_REGNUM)"
694 (define_expand "addsi_big_int"
695 [(set (match_operand:SI 0 "register_operand" "")
696 (plus:SI (match_operand:SI 1 "register_operand" "")
697 (match_operand:SI 2 "immediate_operand" "")))]
700 /* Cope with the possibility that ops 0 and 1 are the same register. */
701 if (REGNO (operands[0]) == REGNO (operands[1]))
703 if (reload_in_progress || reload_completed)
705 rtx reg = gen_rtx_REG (SImode, 0/*COMPILER_SCRATCH_REGISTER*/);
707 emit_insn (gen_movsi (reg, operands[2]));
708 emit_insn (gen_addsi_regs (operands[0], operands[0], reg));
712 operands[2] = force_reg (SImode, operands[2]);
713 emit_insn (gen_addsi_regs (operands[0], operands[0], operands[2]));
718 emit_insn (gen_movsi (operands[0], operands[2]));
719 emit_insn (gen_addsi_regs (operands[0], operands[0], operands[1]));
725 (define_insn "*addsi_for_reload"
726 [(set (match_operand:SI 0 "register_operand" "=&r,r,r")
727 (plus:SI (match_operand:SI 1 "register_operand" "r,r,r")
728 (match_operand:SI 2 "immediate_operand" "L,M,n")))]
729 "reload_in_progress || reload_completed"
731 ldi:8\\t#%2, %0 \\n\\taddn\\t%1, %0
732 ldi:20\\t#%2, %0 \\n\\taddn\\t%1, %0
733 ldi:32\\t#%2, %0 \\n\\taddn\\t%1, %0"
734 [(set_attr "length" "4,6,8")]
740 (define_insn "subsi3"
741 [(set (match_operand:SI 0 "register_operand" "=r")
742 (minus:SI (match_operand:SI 1 "register_operand" "0")
743 (match_operand:SI 2 "register_operand" "r")))]
751 ;; Signed multiplication producing 64 bit results from 32 bit inputs
752 (define_insn "mulsidi3"
753 [(set (match_operand:DI 0 "register_operand" "=r")
754 (mult:DI (sign_extend:DI (match_operand:SI 1 "register_operand" "%r"))
755 (sign_extend:DI (match_operand:SI 2 "register_operand" "r"))))
756 (clobber (reg:CC 16))]
758 "mul %2, %1\\n\\tmov\\tmdh, %0\\n\\tmov\\tmdl, %p0"
759 [(set_attr "length" "6")]
762 ;; Unsigned multiplication producing 64 bit results from 32 bit inputs
763 (define_insn "umulsidi3"
764 [(set (match_operand:DI 0 "register_operand" "=r")
765 (mult:DI (zero_extend:DI (match_operand:SI 1 "register_operand" "%r"))
766 (zero_extend:DI (match_operand:SI 2 "register_operand" "r"))))
767 (clobber (reg:CC 16))]
769 "mulu %2, %1\\n\\tmov\\tmdh, %0\\n\\tmov\\tmdl, %p0"
770 [(set_attr "length" "6")]
773 ;; Signed multiplication producing 32 bit result from 16 bit inputs
774 (define_insn "mulhisi3"
775 [(set (match_operand:SI 0 "register_operand" "=r")
776 (mult:SI (sign_extend:SI (match_operand:HI 1 "register_operand" "%r"))
777 (sign_extend:SI (match_operand:HI 2 "register_operand" "r"))))
778 (clobber (reg:CC 16))]
780 "mulh %2, %1\\n\\tmov\\tmdl, %0"
781 [(set_attr "length" "4")]
784 ;; Unsigned multiplication producing 32 bit result from 16 bit inputs
785 (define_insn "umulhisi3"
786 [(set (match_operand:SI 0 "register_operand" "=r")
787 (mult:SI (zero_extend:SI (match_operand:HI 1 "register_operand" "%r"))
788 (zero_extend:SI (match_operand:HI 2 "register_operand" "r"))))
789 (clobber (reg:CC 16))]
791 "muluh %2, %1\\n\\tmov\\tmdl, %0"
792 [(set_attr "length" "4")]
795 ;; Signed multiplication producing 32 bit result from 32 bit inputs
796 (define_insn "mulsi3"
797 [(set (match_operand:SI 0 "register_operand" "=r")
798 (mult:SI (match_operand:SI 1 "register_operand" "%r")
799 (match_operand:SI 2 "register_operand" "r")))
800 (clobber (reg:CC 16))]
802 "mul %2, %1\\n\\tmov\\tmdl, %0"
803 [(set_attr "length" "4")]
809 (define_expand "negsi2"
810 [(set (match_operand:SI 0 "register_operand" "")
811 (neg:SI (match_operand:SI 1 "register_operand" "")))]
814 if (REGNO (operands[0]) == REGNO (operands[1]))
816 if (reload_in_progress || reload_completed)
818 rtx reg = gen_rtx_REG (SImode, 0/*COMPILER_SCRATCH_REGISTER*/);
820 emit_insn (gen_movsi (reg, GEN_INT (0)));
821 emit_insn (gen_subsi3 (reg, reg, operands[0]));
822 emit_insn (gen_movsi (operands[0], reg));
826 rtx reg = gen_reg_rtx (SImode);
828 emit_insn (gen_movsi (reg, GEN_INT (0)));
829 emit_insn (gen_subsi3 (reg, reg, operands[0]));
830 emit_insn (gen_movsi (operands[0], reg));
835 emit_insn (gen_movsi_internal (operands[0], GEN_INT (0)));
836 emit_insn (gen_subsi3 (operands[0], operands[0], operands[1]));
847 ;; Arithmetic Shift Left
848 (define_insn "ashlsi3"
849 [(set (match_operand:SI 0 "register_operand" "=r,r,r")
850 (ashift:SI (match_operand:SI 1 "register_operand" "0,0,0")
851 (match_operand:SI 2 "nonmemory_operand" "r,I,K")))
852 (clobber (reg:CC 16))]
860 ;; Arithmetic Shift Right
861 (define_insn "ashrsi3"
862 [(set (match_operand:SI 0 "register_operand" "=r,r,r")
863 (ashiftrt:SI (match_operand:SI 1 "register_operand" "0,0,0")
864 (match_operand:SI 2 "nonmemory_operand" "r,I,K")))
865 (clobber (reg:CC 16))]
873 ;; Logical Shift Right
874 (define_insn "lshrsi3"
875 [(set (match_operand:SI 0 "register_operand" "=r,r,r")
876 (lshiftrt:SI (match_operand:SI 1 "register_operand" "0,0,0")
877 (match_operand:SI 2 "nonmemory_operand" "r,I,K")))
878 (clobber (reg:CC 16))]
887 ;;{{{ Logical Operations
889 ;; Logical AND, 32 bit integers
890 (define_insn "andsi3"
891 [(set (match_operand:SI 0 "register_operand" "=r")
892 (and:SI (match_operand:SI 1 "register_operand" "%r")
893 (match_operand:SI 2 "register_operand" "0")))
894 (clobber (reg:CC 16))]
899 ;; Inclusive OR, 32 bit integers
900 (define_insn "iorsi3"
901 [(set (match_operand:SI 0 "register_operand" "=r")
902 (ior:SI (match_operand:SI 1 "register_operand" "%r")
903 (match_operand:SI 2 "register_operand" "0")))
904 (clobber (reg:CC 16))]
909 ;; Exclusive OR, 32 bit integers
910 (define_insn "xorsi3"
911 [(set (match_operand:SI 0 "register_operand" "=r")
912 (xor:SI (match_operand:SI 1 "register_operand" "%r")
913 (match_operand:SI 2 "register_operand" "0")))
914 (clobber (reg:CC 16))]
919 ;; One's complement, 32 bit integers
920 (define_expand "one_cmplsi2"
921 [(set (match_operand:SI 0 "register_operand" "")
922 (not:SI (match_operand:SI 1 "register_operand" "")))]
925 if (REGNO (operands[0]) == REGNO (operands[1]))
927 if (reload_in_progress || reload_completed)
929 rtx reg = gen_rtx_REG (SImode, 0/*COMPILER_SCRATCH_REGISTER*/);
931 emit_insn (gen_movsi (reg, GEN_INT (-1)));
932 emit_insn (gen_xorsi3 (operands[0], operands[0], reg));
936 rtx reg = gen_reg_rtx (SImode);
938 emit_insn (gen_movsi (reg, GEN_INT (-1)));
939 emit_insn (gen_xorsi3 (operands[0], operands[0], reg));
944 emit_insn (gen_movsi_internal (operands[0], GEN_INT (-1)));
945 emit_insn (gen_xorsi3 (operands[0], operands[1], operands[0]));
954 ;; Note, we store the operands in the comparison insns, and use them later
955 ;; when generating the branch or scc operation.
957 ;; First the routines called by the machine independent part of the compiler
958 (define_expand "cmpsi"
960 (compare:CC (match_operand:SI 0 "register_operand" "")
961 (match_operand:SI 1 "nonmemory_operand" "")))]
964 fr30_compare_op0 = operands[0];
965 fr30_compare_op1 = operands[1];
970 ;; Now, the actual comparisons, generated by the branch and/or scc operations
972 (define_insn "*cmpsi_internal"
974 (compare:CC (match_operand:SI 0 "register_operand" "r,r,r")
975 (match_operand:SI 1 "nonmemory_operand" "r,I,J")))]
986 ;; Define_expands called by the machine independent part of the compiler
987 ;; to allocate a new comparison register
991 (compare:CC (match_dup 1)
994 (if_then_else (eq:CC (reg:CC 16)
996 (label_ref (match_operand 0 "" ""))
1000 operands[1] = fr30_compare_op0;
1001 operands[2] = fr30_compare_op1;
1005 (define_expand "bne"
1007 (compare:CC (match_dup 1)
1010 (if_then_else (ne:CC (reg:CC 16)
1012 (label_ref (match_operand 0 "" ""))
1016 operands[1] = fr30_compare_op0;
1017 operands[2] = fr30_compare_op1;
1021 (define_expand "blt"
1023 (compare:CC (match_dup 1)
1026 (if_then_else (lt:CC (reg:CC 16)
1028 (label_ref (match_operand 0 "" ""))
1032 operands[1] = fr30_compare_op0;
1033 operands[2] = fr30_compare_op1;
1037 (define_expand "ble"
1039 (compare:CC (match_dup 1)
1042 (if_then_else (le:CC (reg:CC 16)
1044 (label_ref (match_operand 0 "" ""))
1048 operands[1] = fr30_compare_op0;
1049 operands[2] = fr30_compare_op1;
1053 (define_expand "bgt"
1055 (compare:CC (match_dup 1)
1058 (if_then_else (gt:CC (reg:CC 16)
1060 (label_ref (match_operand 0 "" ""))
1064 operands[1] = fr30_compare_op0;
1065 operands[2] = fr30_compare_op1;
1069 (define_expand "bge"
1071 (compare:CC (match_dup 1)
1074 (if_then_else (ge:CC (reg:CC 16)
1076 (label_ref (match_operand 0 "" ""))
1080 operands[1] = fr30_compare_op0;
1081 operands[2] = fr30_compare_op1;
1085 (define_expand "bltu"
1087 (compare:CC (match_dup 1)
1090 (if_then_else (ltu:CC (reg:CC 16)
1092 (label_ref (match_operand 0 "" ""))
1096 operands[1] = fr30_compare_op0;
1097 operands[2] = fr30_compare_op1;
1101 (define_expand "bleu"
1103 (compare:CC (match_dup 1)
1106 (if_then_else (leu:CC (reg:CC 16)
1108 (label_ref (match_operand 0 "" ""))
1112 operands[1] = fr30_compare_op0;
1113 operands[2] = fr30_compare_op1;
1117 (define_expand "bgtu"
1119 (compare:CC (match_dup 1)
1122 (if_then_else (gtu:CC (reg:CC 16)
1124 (label_ref (match_operand 0 "" ""))
1128 operands[1] = fr30_compare_op0;
1129 operands[2] = fr30_compare_op1;
1133 (define_expand "bgeu"
1135 (compare:CC (match_dup 1)
1138 (if_then_else (geu:CC (reg:CC 16)
1140 (label_ref (match_operand 0 "" ""))
1144 operands[1] = fr30_compare_op0;
1145 operands[2] = fr30_compare_op1;
1149 ;; Actual branches. We must allow for the (label_ref) and the (pc) to be
1150 ;; swapped. If they are swapped, it reverses the sense of the branch.
1152 ;; This pattern matches the (branch-if-true) branches generated above.
1153 ;; It generates two different instruction sequences depending upon how
1154 ;; far away the destination is.
1156 ;; The calculation for the instruction length is derived as follows:
1157 ;; The branch instruction has a 9 bit signed displacement so we have
1158 ;; this inequality for the displacement:
1162 ;; -256 + 256 <= pc + 256 < 256 + 256
1164 ;; 0 <= pc + 256 < 512
1166 ;; if we consider the displacement as an unsigned value, then negative
1167 ;; displacements become very large positive displacements, and the
1168 ;; inequality becomes:
1172 ;; In order to allow for the fact that the real branch instruction works
1173 ;; from pc + 2, we increase the offset to 258.
1175 ;; Note - we do not have to worry about whether the branch is delayed or
1176 ;; not, as branch shortening happens after delay slot reorganisation.
1178 (define_insn "*branch_true"
1180 (if_then_else (match_operator:CC 0 "comparison_operator"
1183 (label_ref (match_operand 1 "" ""))
1188 if (get_attr_length (insn) == 2)
1189 return \"b%b0%#\\t%l1\";
1192 static char buffer [100];
1193 const char * tmp_reg;
1196 tmp_reg = reg_names [COMPILER_SCRATCH_REGISTER];
1198 ldi_insn = TARGET_SMALL_MODEL ? \"ldi:20\" : \"ldi:32\";
1200 /* The code produced here is, for say the EQ case:
1208 \"b%%B0\\t1f\\t;\\n\\t%s\\t%%l1, %s\\t;\\n\\tjmp%%#\\t@%s\\t;\\n1:\",
1209 ldi_insn, tmp_reg, tmp_reg);
1214 [(set (attr "length") (if_then_else
1223 (if_then_else (eq_attr "size" "small")
1226 (set_attr "delay_type" "delayed")]
1230 ;; This pattern is a duplicate of the previous one, except that the
1231 ;; branch occurs if the test is false, so the %B operator is used.
1232 (define_insn "*branch_false"
1234 (if_then_else (match_operator:CC 0 "comparison_operator"
1238 (label_ref (match_operand 1 "" ""))))]
1242 if (get_attr_length (insn) == 2)
1243 return \"b%B0%#\\t%l1 \";
1246 static char buffer [100];
1247 const char * tmp_reg;
1250 tmp_reg = reg_names [COMPILER_SCRATCH_REGISTER];
1252 ldi_insn = TARGET_SMALL_MODEL ? \"ldi:20\" : \"ldi:32\";
1255 \"b%%b0\\t1f\\t;\\n\\t%s\\t%%l1, %s\\t;\\n\\tjmp%%#\\t@%s\\t;\\n1:\",
1256 ldi_insn, tmp_reg, tmp_reg);
1261 [(set (attr "length") (if_then_else (ltu (plus (minus (match_dup 1) (pc))
1265 (if_then_else (eq_attr "size" "small")
1268 (set_attr "delay_type" "delayed")]
1274 ;; Subroutine call instruction returning no value. Operand 0 is the function
1275 ;; to call; operand 1 is the number of bytes of arguments pushed (in mode
1276 ;; `SImode', except it is normally a `const_int'); operand 2 is the number of
1277 ;; registers used as operands.
1280 [(call (match_operand 0 "call_operand" "Qm")
1281 (match_operand 1 "" "g"))
1282 (clobber (reg:SI 17))]
1285 [(set_attr "delay_type" "delayed")]
1288 ;; Subroutine call instruction returning a value. Operand 0 is the hard
1289 ;; register in which the value is returned. There are three more operands, the
1290 ;; same as the three operands of the `call' instruction (but with numbers
1291 ;; increased by one).
1293 ;; Subroutines that return `BLKmode' objects use the `call' insn.
1295 (define_insn "call_value"
1296 [(set (match_operand 0 "register_operand" "=r")
1297 (call (match_operand 1 "call_operand" "Qm")
1298 (match_operand 2 "" "g")))
1299 (clobber (reg:SI 17))]
1302 [(set_attr "delay_type" "delayed")]
1305 ;; Normal unconditional jump.
1306 ;; For a description of the computation of the length
1307 ;; attribute see the branch patterns above.
1309 [(set (pc) (label_ref (match_operand 0 "" "")))
1310 (clobber (reg:SI 0))]
1314 if (get_attr_length (insn) == 2)
1315 return \"bra%#\\t%0\";
1318 static char buffer [100];
1319 const char * tmp_reg;
1322 tmp_reg = reg_names [COMPILER_SCRATCH_REGISTER];
1324 ldi_insn = TARGET_SMALL_MODEL ? \"ldi:20\" : \"ldi:32\";
1326 sprintf (buffer, \"%s\\t%%0, %s\\t;\\n\\tjmp%%#\\t@%s\\t;\",
1327 ldi_insn, tmp_reg, tmp_reg);
1332 [(set (attr "length") (if_then_else (ltu (plus (minus (match_dup 0) (pc))
1336 (if_then_else (eq_attr "size" "small")
1339 (set_attr "delay_type" "delayed")]
1342 ;; Indirect jump through a register
1343 (define_insn "indirect_jump"
1344 [(set (pc) (match_operand:SI 0 "nonimmediate_operand" "r"))]
1345 "GET_CODE (operands[0]) != MEM || GET_CODE (XEXP (operands[0], 0)) != PLUS"
1347 [(set_attr "delay_type" "delayed")]
1350 (define_insn "tablejump"
1351 [(set (pc) (match_operand:SI 0 "register_operand" "r"))
1352 (use (label_ref (match_operand 1 "" "")))]
1355 [(set_attr "delay_type" "delayed")]
1359 ;;{{{ Function Prologues and Epilogues
1361 ;; Called after register allocation to add any instructions needed for the
1362 ;; prologue. Using a prologue insn is favored compared to putting all of the
1363 ;; instructions in the FUNCTION_PROLOGUE macro, since it allows the scheduler
1364 ;; to intermix instructions with the saves of the caller saved registers. In
1365 ;; some cases, it might be necessary to emit a barrier instruction as the last
1366 ;; insn to prevent such scheduling.
1367 (define_expand "prologue"
1368 [(clobber (const_int 0))]
1371 fr30_expand_prologue ();
1376 ;; Called after register allocation to add any instructions needed for the
1377 ;; epilogue. Using a epilogue insn is favored compared to putting all of the
1378 ;; instructions in the FUNCTION_EPILOGUE macro, since it allows the scheduler
1379 ;; to intermix instructions with the restores of the caller saved registers.
1380 ;; In some cases, it might be necessary to emit a barrier instruction as the
1381 ;; first insn to prevent such scheduling.
1382 (define_expand "epilogue"
1386 fr30_expand_epilogue ();
1391 (define_insn "return_from_func"
1396 [(set_attr "delay_type" "delayed")]
1399 (define_insn "leave_func"
1400 [(set (reg:SI 15) (reg:SI 14))
1401 (set (reg:SI 14) (mem:SI (post_inc:SI (reg:SI 15))))]
1406 (define_insn "enter_func"
1407 [(set:SI (mem:SI (minus:SI (reg:SI 15)
1411 (minus:SI (reg:SI 15)
1414 (minus:SI (reg:SI 15)
1415 (match_operand 0 "immediate_operand" "i")))]
1418 [(set_attr "delay_type" "other")]
1424 ;; No operation, needed in case the user uses -g but not -O.
1431 ;; Pseudo instruction that prevents the scheduler from moving code above this
1433 (define_insn "blockage"
1434 [(unspec_volatile [(const_int 0)] 0)]
1437 [(set_attr "length" "0")]