1 ;; FR30 machine description.
2 ;; Copyright (C) 1998, 1999, 2000, 2002, 2004, 2005
3 ;; Free Software Foundation, Inc.
4 ;; Contributed by Cygnus Solutions.
6 ;; This file is part of GCC.
8 ;; GCC is free software; you can redistribute it and/or modify
9 ;; it under the terms of the GNU General Public License as published by
10 ;; the Free Software Foundation; either version 2, or (at your option)
13 ;; GCC is distributed in the hope that it will be useful,
14 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
15 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 ;; GNU General Public License for more details.
18 ;; You should have received a copy of the GNU General Public License
19 ;; along with GCC; see the file COPYING. If not, write to
20 ;; the Free Software Foundation, 51 Franklin Street, Fifth Floor,
21 ;; Boston, MA 02110-1301, USA.
23 ;;- See file "rtl.def" for documentation on define_insn, match_*, et. al.
27 (define_attr "length" "" (const_int 2))
29 ;; Used to distinguish between small memory model targets and big mode targets.
31 (define_attr "size" "small,big"
32 (const (if_then_else (symbol_ref "TARGET_SMALL_MODEL")
33 (const_string "small")
34 (const_string "big"))))
37 ;; Define an attribute to be used by the delay slot code.
38 ;; An instruction by default is considered to be 'delyabable'
39 ;; that is, it can be placed into a delay slot, but it is not
40 ;; itself a delayed branch type instruction. An instruction
41 ;; whose type is 'delayed' is one which has a delay slot, and
42 ;; an instruction whose delay_type is 'other' is one which does
43 ;; not have a delay slot, nor can it be placed into a delay slot.
45 (define_attr "delay_type" "delayable,delayed,other" (const_string "delayable"))
48 ;;{{{ Delay Slot Specifications
50 (define_delay (eq_attr "delay_type" "delayed")
51 [(and (eq_attr "delay_type" "delayable")
52 (eq_attr "length" "2"))
57 (include "predicates.md")
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 "const_int_operand" ""))]
293 "INTVAL (operands[1]) <= -1 && INTVAL (operands[1]) >= -128
294 && (GET_CODE (operands[0]) != SUBREG
295 || SCALAR_INT_MODE_P (GET_MODE (XEXP (operands[0], 0))))"
296 [(set:SI (match_dup 0) (match_dup 1))
297 (set:SI (match_dup 0) (sign_extend:SI (match_dup 2)))]
299 operands[1] = GEN_INT (INTVAL (operands[1]) & 0xff);
300 operands[2] = gen_lowpart (QImode, operands[0]);
304 ;; If we are loading a large negative constant, one which does
305 ;; not have any of its bottom 24 bit set, then we can save time
306 ;; and space by loading the byte value and shifting it into place.
308 [(set (match_operand:SI 0 "register_operand" "")
309 (match_operand:SI 1 "const_int_operand" ""))]
310 "(INTVAL (operands[1]) < 0) && ((INTVAL (operands[1]) & 0x00ffffff) == 0)"
311 [(set:SI (match_dup 0) (match_dup 2))
312 (parallel [(set:SI (match_dup 0) (ashift:SI (match_dup 0) (const_int 24)))
313 (clobber (reg:CC 16))])]
315 HOST_WIDE_INT val = INTVAL (operands[1]);
316 operands[2] = GEN_INT (val >> 24);
320 ;; If we are loading a large positive constant, one which has bits
321 ;; in the top byte set, but whose set bits all lie within an 8 bit
322 ;; range, then we can save time and space by loading the byte value
323 ;; and shifting it into place.
325 [(set (match_operand:SI 0 "register_operand" "")
326 (match_operand:SI 1 "const_int_operand" ""))]
327 "(INTVAL (operands[1]) > 0x00ffffff)
328 && ((INTVAL (operands[1]) >> exact_log2 (INTVAL (operands[1]) & (- INTVAL (operands[1])))) < 0x100)"
329 [(set:SI (match_dup 0) (match_dup 2))
330 (parallel [(set:SI (match_dup 0) (ashift:SI (match_dup 0) (match_dup 3)))
331 (clobber (reg:CC 16))])]
333 HOST_WIDE_INT val = INTVAL (operands[1]);
334 int shift = exact_log2 (val & ( - val));
335 operands[2] = GEN_INT (val >> shift);
336 operands[3] = GEN_INT (shift);
340 ;; When TARGET_SMALL_MODEL is defined we assume that all symbolic
341 ;; values are addresses which will fit in 20 bits.
343 (define_insn "movsi_internal"
344 [(set (match_operand:SI 0 "nonimmediate_operand" "=r,r,r,r,red,m,r")
345 (match_operand:SI 1 "general_operand" "L,M,n,i,rde,r,rm"))]
349 switch (which_alternative)
351 case 0: return \"ldi:8 \\t#%1, %0\";
352 case 1: return \"ldi:20\\t#%1, %0\";
353 case 2: return \"ldi:32\\t#%1, %0\";
354 case 3: if (TARGET_SMALL_MODEL)
355 return \"ldi:20\\t%1, %0\";
357 return \"ldi:32\\t%1, %0\";
358 case 4: return \"mov \\t%1, %0\";
359 case 5: return \"st \\t%1, %0\";
360 case 6: return \"ld \\t%1, %0\";
361 default: gcc_unreachable ();
364 [(set (attr "length") (cond [(eq_attr "alternative" "1") (const_int 4)
365 (eq_attr "alternative" "2") (const_int 6)
366 (eq_attr "alternative" "3")
367 (if_then_else (eq_attr "size" "small")
376 ;; Note - the FR30 does not have an 8 byte load/store instruction
377 ;; but we have to support this pattern because some other patterns
378 ;; (e.g. muldisi2) can produce a DImode result.
379 ;; (This code is stolen from the M32R port.)
381 (define_expand "movdi"
382 [(set (match_operand:DI 0 "general_operand" "")
383 (match_operand:DI 1 "general_operand" ""))]
386 /* Everything except mem = const or mem = mem can be done easily. */
388 if (GET_CODE (operands[0]) == MEM)
389 operands[1] = force_reg (DImode, operands[1]);
392 ;; We use an insn and a split so that we can generate
393 ;; RTL rather than text from fr30_move_double().
395 (define_insn "*movdi_insn"
396 [(set (match_operand:DI 0 "nonimmediate_di_operand" "=r,r,m,r")
397 (match_operand:DI 1 "di_operand" "r,m,r,nF"))]
398 "register_operand (operands[0], DImode) || register_operand (operands[1], DImode)"
400 [(set_attr "length" "4,8,12,12")]
404 [(set (match_operand:DI 0 "nonimmediate_di_operand" "")
405 (match_operand:DI 1 "di_operand" ""))]
408 "operands[2] = fr30_move_double (operands);")
411 ;;{{{ Load & Store Multiple Registers
413 ;; The load multiple and store multiple patterns are implemented
414 ;; as peepholes because the only time they are expected to occur
415 ;; is during function prologues and epilogues.
418 [(set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
419 (match_operand:SI 0 "high_register_operand" "h"))
420 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
421 (match_operand:SI 1 "high_register_operand" "h"))
422 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
423 (match_operand:SI 2 "high_register_operand" "h"))
424 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
425 (match_operand:SI 3 "high_register_operand" "h"))]
426 "fr30_check_multiple_regs (operands, 4, 1)"
427 "stm1 (%0, %1, %2, %3)"
428 [(set_attr "delay_type" "other")]
432 [(set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
433 (match_operand:SI 0 "high_register_operand" "h"))
434 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
435 (match_operand:SI 1 "high_register_operand" "h"))
436 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
437 (match_operand:SI 2 "high_register_operand" "h"))]
438 "fr30_check_multiple_regs (operands, 3, 1)"
440 [(set_attr "delay_type" "other")]
444 [(set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
445 (match_operand:SI 0 "high_register_operand" "h"))
446 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
447 (match_operand:SI 1 "high_register_operand" "h"))]
448 "fr30_check_multiple_regs (operands, 2, 1)"
450 [(set_attr "delay_type" "other")]
454 [(set:SI (match_operand:SI 0 "high_register_operand" "h")
455 (mem:SI (post_inc:SI (reg:SI 15))))
456 (set:SI (match_operand:SI 1 "high_register_operand" "h")
457 (mem:SI (post_inc:SI (reg:SI 15))))
458 (set:SI (match_operand:SI 2 "high_register_operand" "h")
459 (mem:SI (post_inc:SI (reg:SI 15))))
460 (set:SI (match_operand:SI 3 "high_register_operand" "h")
461 (mem:SI (post_inc:SI (reg:SI 15))))]
462 "fr30_check_multiple_regs (operands, 4, 0)"
463 "ldm1 (%0, %1, %2, %3)"
464 [(set_attr "delay_type" "other")]
468 [(set:SI (match_operand:SI 0 "high_register_operand" "h")
469 (mem:SI (post_inc:SI (reg:SI 15))))
470 (set:SI (match_operand:SI 1 "high_register_operand" "h")
471 (mem:SI (post_inc:SI (reg:SI 15))))
472 (set:SI (match_operand:SI 2 "high_register_operand" "h")
473 (mem:SI (post_inc:SI (reg:SI 15))))]
474 "fr30_check_multiple_regs (operands, 3, 0)"
476 [(set_attr "delay_type" "other")]
480 [(set:SI (match_operand:SI 0 "high_register_operand" "h")
481 (mem:SI (post_inc:SI (reg:SI 15))))
482 (set:SI (match_operand:SI 1 "high_register_operand" "h")
483 (mem:SI (post_inc:SI (reg:SI 15))))]
484 "fr30_check_multiple_regs (operands, 2, 0)"
486 [(set_attr "delay_type" "other")]
490 [(set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
491 (match_operand:SI 0 "low_register_operand" "l"))
492 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
493 (match_operand:SI 1 "low_register_operand" "l"))
494 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
495 (match_operand:SI 2 "low_register_operand" "l"))
496 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
497 (match_operand:SI 3 "low_register_operand" "l"))]
498 "fr30_check_multiple_regs (operands, 4, 1)"
499 "stm0 (%0, %1, %2, %3)"
500 [(set_attr "delay_type" "other")]
504 [(set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
505 (match_operand:SI 0 "low_register_operand" "l"))
506 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
507 (match_operand:SI 1 "low_register_operand" "l"))
508 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
509 (match_operand:SI 2 "low_register_operand" "l"))]
510 "fr30_check_multiple_regs (operands, 3, 1)"
512 [(set_attr "delay_type" "other")]
516 [(set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
517 (match_operand:SI 0 "low_register_operand" "l"))
518 (set:SI (mem:SI (pre_dec:SI (reg:SI 15)))
519 (match_operand:SI 1 "low_register_operand" "l"))]
520 "fr30_check_multiple_regs (operands, 2, 1)"
522 [(set_attr "delay_type" "other")]
526 ;;{{{ Floating Point Moves
528 ;; Note - Patterns for SF mode moves are compulsory, but
529 ;; patterns for DF are optional, as GCC can synthesize them.
531 (define_expand "movsf"
532 [(set (match_operand:SF 0 "general_operand" "")
533 (match_operand:SF 1 "general_operand" ""))]
536 if (!reload_in_progress && !reload_completed
537 && memory_operand (operands[0], SFmode)
538 && memory_operand (operands[1], SFmode))
539 operands[1] = copy_to_mode_reg (SFmode, operands[1]);
543 (define_insn "*movsf_internal"
544 [(set (match_operand:SF 0 "nonimmediate_operand" "=r,r,red,m,r")
545 (match_operand:SF 1 "general_operand" "Fn,i,rde,r,rm"))]
549 switch (which_alternative)
551 case 0: return \"ldi:32\\t%1, %0\";
552 case 1: if (TARGET_SMALL_MODEL)
553 return \"ldi:20\\t%1, %0\";
555 return \"ldi:32\\t%1, %0\";
556 case 2: return \"mov \\t%1, %0\";
557 case 3: return \"st \\t%1, %0\";
558 case 4: return \"ld \\t%1, %0\";
559 default: gcc_unreachable ();
562 [(set (attr "length") (cond [(eq_attr "alternative" "0") (const_int 6)
563 (eq_attr "alternative" "1")
564 (if_then_else (eq_attr "size" "small")
570 (define_insn "*movsf_constant_store"
571 [(set (match_operand:SF 0 "memory_operand" "=m")
572 (match_operand:SF 1 "immediate_operand" "F"))]
576 const char * ldi_instr;
577 const char * tmp_reg;
578 static char buffer[100];
580 ldi_instr = fr30_const_double_is_zero (operands[1])
581 ? ldi_instr = \"ldi:8\" : \"ldi:32\";
583 tmp_reg = reg_names [COMPILER_SCRATCH_REGISTER];
585 sprintf (buffer, \"%s\\t#%%1, %s\\t;\\n\\tst\\t%s, %%0\\t; Created by movsf_constant_store\",
586 ldi_instr, tmp_reg, tmp_reg);
590 [(set_attr "length" "8")]
598 ;; Signed conversions from a smaller integer to a larger integer
600 (define_insn "extendqisi2"
601 [(set (match_operand:SI 0 "register_operand" "=r")
602 (sign_extend:SI (match_operand:QI 1 "register_operand" "0")))]
607 (define_insn "extendhisi2"
608 [(set (match_operand:SI 0 "register_operand" "=r")
609 (sign_extend:SI (match_operand:HI 1 "register_operand" "0")))]
614 ;; Unsigned conversions from a smaller integer to a larger integer
616 (define_insn "zero_extendqisi2"
617 [(set (match_operand:SI 0 "register_operand" "=r")
618 (zero_extend:SI (match_operand:QI 1 "register_operand" "0")))]
623 (define_insn "zero_extendhisi2"
624 [(set (match_operand:SI 0 "register_operand" "=r")
625 (zero_extend:SI (match_operand:HI 1 "register_operand" "0")))]
635 ;; This is a special pattern just for adjusting the stack size.
636 (define_insn "add_to_stack"
639 (match_operand:SI 0 "stack_add_operand" "i")))]
644 ;; We need some trickery to be able to handle the addition of
645 ;; large (i.e. outside +/- 16) constants. We need to be able to
646 ;; handle this because reload assumes that it can generate add
647 ;; instructions with arbitrary sized constants.
648 (define_expand "addsi3"
649 [(set (match_operand:SI 0 "register_operand" "")
650 (plus:SI (match_operand:SI 1 "register_operand" "")
651 (match_operand:SI 2 "nonmemory_operand" "")))]
654 if ( GET_CODE (operands[2]) == REG
655 || GET_CODE (operands[2]) == SUBREG)
656 emit_insn (gen_addsi_regs (operands[0], operands[1], operands[2]));
657 else if (GET_CODE (operands[2]) != CONST_INT)
658 emit_insn (gen_addsi_big_int (operands[0], operands[1], operands[2]));
659 else if (INTVAL (operands[2]) >= -16
660 && INTVAL (operands[2]) <= 15
661 && (!REGNO_PTR_FRAME_P (REGNO (operands[1]))
662 || REGNO (operands[1]) == STACK_POINTER_REGNUM))
663 emit_insn (gen_addsi_small_int (operands[0], operands[1], operands[2]));
665 emit_insn (gen_addsi_big_int (operands[0], operands[1], operands[2]));
670 (define_insn "addsi_regs"
671 [(set (match_operand:SI 0 "register_operand" "=r")
672 (plus:SI (match_operand:SI 1 "register_operand" "%0")
673 (match_operand:SI 2 "register_operand" "r")))]
678 ;; Do not allow an eliminable register in the source register. It
679 ;; might be eliminated in favor of the stack pointer, probably
680 ;; increasing the offset, and so rendering the instruction illegal.
681 (define_insn "addsi_small_int"
682 [(set (match_operand:SI 0 "register_operand" "=r,r")
683 (plus:SI (match_operand:SI 1 "register_operand" "0,0")
684 (match_operand:SI 2 "add_immediate_operand" "I,J")))]
685 "! REGNO_PTR_FRAME_P (REGNO (operands[1]))
686 || REGNO (operands[1]) == STACK_POINTER_REGNUM"
692 (define_expand "addsi_big_int"
693 [(set (match_operand:SI 0 "register_operand" "")
694 (plus:SI (match_operand:SI 1 "register_operand" "")
695 (match_operand:SI 2 "immediate_operand" "")))]
698 /* Cope with the possibility that ops 0 and 1 are the same register. */
699 if (REGNO (operands[0]) == REGNO (operands[1]))
701 if (reload_in_progress || reload_completed)
703 rtx reg = gen_rtx_REG (SImode, 0/*COMPILER_SCRATCH_REGISTER*/);
705 emit_insn (gen_movsi (reg, operands[2]));
706 emit_insn (gen_addsi_regs (operands[0], operands[0], reg));
710 operands[2] = force_reg (SImode, operands[2]);
711 emit_insn (gen_addsi_regs (operands[0], operands[0], operands[2]));
716 emit_insn (gen_movsi (operands[0], operands[2]));
717 emit_insn (gen_addsi_regs (operands[0], operands[0], operands[1]));
723 (define_insn "*addsi_for_reload"
724 [(set (match_operand:SI 0 "register_operand" "=&r,r,r")
725 (plus:SI (match_operand:SI 1 "register_operand" "r,r,r")
726 (match_operand:SI 2 "immediate_operand" "L,M,n")))]
727 "reload_in_progress || reload_completed"
729 ldi:8\\t#%2, %0 \\n\\taddn\\t%1, %0
730 ldi:20\\t#%2, %0 \\n\\taddn\\t%1, %0
731 ldi:32\\t#%2, %0 \\n\\taddn\\t%1, %0"
732 [(set_attr "length" "4,6,8")]
738 (define_insn "subsi3"
739 [(set (match_operand:SI 0 "register_operand" "=r")
740 (minus:SI (match_operand:SI 1 "register_operand" "0")
741 (match_operand:SI 2 "register_operand" "r")))]
749 ;; Signed multiplication producing 64 bit results from 32 bit inputs
750 (define_insn "mulsidi3"
751 [(set (match_operand:DI 0 "register_operand" "=r")
752 (mult:DI (sign_extend:DI (match_operand:SI 1 "register_operand" "%r"))
753 (sign_extend:DI (match_operand:SI 2 "register_operand" "r"))))
754 (clobber (reg:CC 16))]
756 "mul %2, %1\\n\\tmov\\tmdh, %0\\n\\tmov\\tmdl, %p0"
757 [(set_attr "length" "6")]
760 ;; Unsigned multiplication producing 64 bit results from 32 bit inputs
761 (define_insn "umulsidi3"
762 [(set (match_operand:DI 0 "register_operand" "=r")
763 (mult:DI (zero_extend:DI (match_operand:SI 1 "register_operand" "%r"))
764 (zero_extend:DI (match_operand:SI 2 "register_operand" "r"))))
765 (clobber (reg:CC 16))]
767 "mulu %2, %1\\n\\tmov\\tmdh, %0\\n\\tmov\\tmdl, %p0"
768 [(set_attr "length" "6")]
771 ;; Signed multiplication producing 32 bit result from 16 bit inputs
772 (define_insn "mulhisi3"
773 [(set (match_operand:SI 0 "register_operand" "=r")
774 (mult:SI (sign_extend:SI (match_operand:HI 1 "register_operand" "%r"))
775 (sign_extend:SI (match_operand:HI 2 "register_operand" "r"))))
776 (clobber (reg:CC 16))]
778 "mulh %2, %1\\n\\tmov\\tmdl, %0"
779 [(set_attr "length" "4")]
782 ;; Unsigned multiplication producing 32 bit result from 16 bit inputs
783 (define_insn "umulhisi3"
784 [(set (match_operand:SI 0 "register_operand" "=r")
785 (mult:SI (zero_extend:SI (match_operand:HI 1 "register_operand" "%r"))
786 (zero_extend:SI (match_operand:HI 2 "register_operand" "r"))))
787 (clobber (reg:CC 16))]
789 "muluh %2, %1\\n\\tmov\\tmdl, %0"
790 [(set_attr "length" "4")]
793 ;; Signed multiplication producing 32 bit result from 32 bit inputs
794 (define_insn "mulsi3"
795 [(set (match_operand:SI 0 "register_operand" "=r")
796 (mult:SI (match_operand:SI 1 "register_operand" "%r")
797 (match_operand:SI 2 "register_operand" "r")))
798 (clobber (reg:CC 16))]
800 "mul %2, %1\\n\\tmov\\tmdl, %0"
801 [(set_attr "length" "4")]
807 (define_expand "negsi2"
808 [(set (match_operand:SI 0 "register_operand" "")
809 (neg:SI (match_operand:SI 1 "register_operand" "")))]
812 if (REGNO (operands[0]) == REGNO (operands[1]))
814 if (reload_in_progress || reload_completed)
816 rtx reg = gen_rtx_REG (SImode, 0/*COMPILER_SCRATCH_REGISTER*/);
818 emit_insn (gen_movsi (reg, const0_rtx));
819 emit_insn (gen_subsi3 (reg, reg, operands[0]));
820 emit_insn (gen_movsi (operands[0], reg));
824 rtx reg = gen_reg_rtx (SImode);
826 emit_insn (gen_movsi (reg, const0_rtx));
827 emit_insn (gen_subsi3 (reg, reg, operands[0]));
828 emit_insn (gen_movsi (operands[0], reg));
833 emit_insn (gen_movsi_internal (operands[0], const0_rtx));
834 emit_insn (gen_subsi3 (operands[0], operands[0], operands[1]));
845 ;; Arithmetic Shift Left
846 (define_insn "ashlsi3"
847 [(set (match_operand:SI 0 "register_operand" "=r,r,r")
848 (ashift:SI (match_operand:SI 1 "register_operand" "0,0,0")
849 (match_operand:SI 2 "nonmemory_operand" "r,I,K")))
850 (clobber (reg:CC 16))]
858 ;; Arithmetic Shift Right
859 (define_insn "ashrsi3"
860 [(set (match_operand:SI 0 "register_operand" "=r,r,r")
861 (ashiftrt:SI (match_operand:SI 1 "register_operand" "0,0,0")
862 (match_operand:SI 2 "nonmemory_operand" "r,I,K")))
863 (clobber (reg:CC 16))]
871 ;; Logical Shift Right
872 (define_insn "lshrsi3"
873 [(set (match_operand:SI 0 "register_operand" "=r,r,r")
874 (lshiftrt:SI (match_operand:SI 1 "register_operand" "0,0,0")
875 (match_operand:SI 2 "nonmemory_operand" "r,I,K")))
876 (clobber (reg:CC 16))]
885 ;;{{{ Logical Operations
887 ;; Logical AND, 32 bit integers
888 (define_insn "andsi3"
889 [(set (match_operand:SI 0 "register_operand" "=r")
890 (and:SI (match_operand:SI 1 "register_operand" "%r")
891 (match_operand:SI 2 "register_operand" "0")))
892 (clobber (reg:CC 16))]
897 ;; Inclusive OR, 32 bit integers
898 (define_insn "iorsi3"
899 [(set (match_operand:SI 0 "register_operand" "=r")
900 (ior:SI (match_operand:SI 1 "register_operand" "%r")
901 (match_operand:SI 2 "register_operand" "0")))
902 (clobber (reg:CC 16))]
907 ;; Exclusive OR, 32 bit integers
908 (define_insn "xorsi3"
909 [(set (match_operand:SI 0 "register_operand" "=r")
910 (xor:SI (match_operand:SI 1 "register_operand" "%r")
911 (match_operand:SI 2 "register_operand" "0")))
912 (clobber (reg:CC 16))]
917 ;; One's complement, 32 bit integers
918 (define_expand "one_cmplsi2"
919 [(set (match_operand:SI 0 "register_operand" "")
920 (not:SI (match_operand:SI 1 "register_operand" "")))]
923 if (REGNO (operands[0]) == REGNO (operands[1]))
925 if (reload_in_progress || reload_completed)
927 rtx reg = gen_rtx_REG (SImode, 0/*COMPILER_SCRATCH_REGISTER*/);
929 emit_insn (gen_movsi (reg, constm1_rtx));
930 emit_insn (gen_xorsi3 (operands[0], operands[0], reg));
934 rtx reg = gen_reg_rtx (SImode);
936 emit_insn (gen_movsi (reg, constm1_rtx));
937 emit_insn (gen_xorsi3 (operands[0], operands[0], reg));
942 emit_insn (gen_movsi_internal (operands[0], constm1_rtx));
943 emit_insn (gen_xorsi3 (operands[0], operands[1], operands[0]));
952 ;; Note, we store the operands in the comparison insns, and use them later
953 ;; when generating the branch or scc operation.
955 ;; First the routines called by the machine independent part of the compiler
956 (define_expand "cmpsi"
958 (compare:CC (match_operand:SI 0 "register_operand" "")
959 (match_operand:SI 1 "nonmemory_operand" "")))]
962 fr30_compare_op0 = operands[0];
963 fr30_compare_op1 = operands[1];
968 ;; Now, the actual comparisons, generated by the branch and/or scc operations
970 (define_insn "*cmpsi_internal"
972 (compare:CC (match_operand:SI 0 "register_operand" "r,r,r")
973 (match_operand:SI 1 "nonmemory_operand" "r,I,J")))]
984 ;; Define_expands called by the machine independent part of the compiler
985 ;; to allocate a new comparison register
989 (compare:CC (match_dup 1)
992 (if_then_else (eq:CC (reg:CC 16)
994 (label_ref (match_operand 0 "" ""))
998 operands[1] = fr30_compare_op0;
999 operands[2] = fr30_compare_op1;
1003 (define_expand "bne"
1005 (compare:CC (match_dup 1)
1008 (if_then_else (ne:CC (reg:CC 16)
1010 (label_ref (match_operand 0 "" ""))
1014 operands[1] = fr30_compare_op0;
1015 operands[2] = fr30_compare_op1;
1019 (define_expand "blt"
1021 (compare:CC (match_dup 1)
1024 (if_then_else (lt:CC (reg:CC 16)
1026 (label_ref (match_operand 0 "" ""))
1030 operands[1] = fr30_compare_op0;
1031 operands[2] = fr30_compare_op1;
1035 (define_expand "ble"
1037 (compare:CC (match_dup 1)
1040 (if_then_else (le:CC (reg:CC 16)
1042 (label_ref (match_operand 0 "" ""))
1046 operands[1] = fr30_compare_op0;
1047 operands[2] = fr30_compare_op1;
1051 (define_expand "bgt"
1053 (compare:CC (match_dup 1)
1056 (if_then_else (gt:CC (reg:CC 16)
1058 (label_ref (match_operand 0 "" ""))
1062 operands[1] = fr30_compare_op0;
1063 operands[2] = fr30_compare_op1;
1067 (define_expand "bge"
1069 (compare:CC (match_dup 1)
1072 (if_then_else (ge:CC (reg:CC 16)
1074 (label_ref (match_operand 0 "" ""))
1078 operands[1] = fr30_compare_op0;
1079 operands[2] = fr30_compare_op1;
1083 (define_expand "bltu"
1085 (compare:CC (match_dup 1)
1088 (if_then_else (ltu:CC (reg:CC 16)
1090 (label_ref (match_operand 0 "" ""))
1094 operands[1] = fr30_compare_op0;
1095 operands[2] = fr30_compare_op1;
1099 (define_expand "bleu"
1101 (compare:CC (match_dup 1)
1104 (if_then_else (leu:CC (reg:CC 16)
1106 (label_ref (match_operand 0 "" ""))
1110 operands[1] = fr30_compare_op0;
1111 operands[2] = fr30_compare_op1;
1115 (define_expand "bgtu"
1117 (compare:CC (match_dup 1)
1120 (if_then_else (gtu:CC (reg:CC 16)
1122 (label_ref (match_operand 0 "" ""))
1126 operands[1] = fr30_compare_op0;
1127 operands[2] = fr30_compare_op1;
1131 (define_expand "bgeu"
1133 (compare:CC (match_dup 1)
1136 (if_then_else (geu:CC (reg:CC 16)
1138 (label_ref (match_operand 0 "" ""))
1142 operands[1] = fr30_compare_op0;
1143 operands[2] = fr30_compare_op1;
1147 ;; Actual branches. We must allow for the (label_ref) and the (pc) to be
1148 ;; swapped. If they are swapped, it reverses the sense of the branch.
1150 ;; This pattern matches the (branch-if-true) branches generated above.
1151 ;; It generates two different instruction sequences depending upon how
1152 ;; far away the destination is.
1154 ;; The calculation for the instruction length is derived as follows:
1155 ;; The branch instruction has a 9 bit signed displacement so we have
1156 ;; this inequality for the displacement:
1160 ;; -256 + 256 <= pc + 256 < 256 + 256
1162 ;; 0 <= pc + 256 < 512
1164 ;; if we consider the displacement as an unsigned value, then negative
1165 ;; displacements become very large positive displacements, and the
1166 ;; inequality becomes:
1170 ;; In order to allow for the fact that the real branch instruction works
1171 ;; from pc + 2, we increase the offset to 258.
1173 ;; Note - we do not have to worry about whether the branch is delayed or
1174 ;; not, as branch shortening happens after delay slot reorganization.
1176 (define_insn "*branch_true"
1178 (if_then_else (match_operator:CC 0 "comparison_operator"
1181 (label_ref (match_operand 1 "" ""))
1186 if (get_attr_length (insn) == 2)
1187 return \"b%b0%#\\t%l1\";
1190 static char buffer [100];
1191 const char * tmp_reg;
1192 const char * ldi_insn;
1194 tmp_reg = reg_names [COMPILER_SCRATCH_REGISTER];
1196 ldi_insn = TARGET_SMALL_MODEL ? \"ldi:20\" : \"ldi:32\";
1198 /* The code produced here is, for say the EQ case:
1206 \"b%%B0\\t1f\\t;\\n\\t%s\\t%%l1, %s\\t;\\n\\tjmp%%#\\t@%s\\t;\\n1:\",
1207 ldi_insn, tmp_reg, tmp_reg);
1212 [(set (attr "length") (if_then_else
1221 (if_then_else (eq_attr "size" "small")
1224 (set_attr "delay_type" "delayed")]
1228 ;; This pattern is a duplicate of the previous one, except that the
1229 ;; branch occurs if the test is false, so the %B operator is used.
1230 (define_insn "*branch_false"
1232 (if_then_else (match_operator:CC 0 "comparison_operator"
1236 (label_ref (match_operand 1 "" ""))))]
1240 if (get_attr_length (insn) == 2)
1241 return \"b%B0%#\\t%l1 \";
1244 static char buffer [100];
1245 const char * tmp_reg;
1246 const char * ldi_insn;
1248 tmp_reg = reg_names [COMPILER_SCRATCH_REGISTER];
1250 ldi_insn = TARGET_SMALL_MODEL ? \"ldi:20\" : \"ldi:32\";
1253 \"b%%b0\\t1f\\t;\\n\\t%s\\t%%l1, %s\\t;\\n\\tjmp%%#\\t@%s\\t;\\n1:\",
1254 ldi_insn, tmp_reg, tmp_reg);
1259 [(set (attr "length") (if_then_else (ltu (plus (minus (match_dup 1) (pc))
1263 (if_then_else (eq_attr "size" "small")
1266 (set_attr "delay_type" "delayed")]
1272 ;; Subroutine call instruction returning no value. Operand 0 is the function
1273 ;; to call; operand 1 is the number of bytes of arguments pushed (in mode
1274 ;; `SImode', except it is normally a `const_int'); operand 2 is the number of
1275 ;; registers used as operands.
1278 [(call (match_operand 0 "call_operand" "Qm")
1279 (match_operand 1 "" "g"))
1280 (clobber (reg:SI 17))]
1283 [(set_attr "delay_type" "delayed")]
1286 ;; Subroutine call instruction returning a value. Operand 0 is the hard
1287 ;; register in which the value is returned. There are three more operands, the
1288 ;; same as the three operands of the `call' instruction (but with numbers
1289 ;; increased by one).
1291 ;; Subroutines that return `BLKmode' objects use the `call' insn.
1293 (define_insn "call_value"
1294 [(set (match_operand 0 "register_operand" "=r")
1295 (call (match_operand 1 "call_operand" "Qm")
1296 (match_operand 2 "" "g")))
1297 (clobber (reg:SI 17))]
1300 [(set_attr "delay_type" "delayed")]
1303 ;; Normal unconditional jump.
1304 ;; For a description of the computation of the length
1305 ;; attribute see the branch patterns above.
1307 ;; Although this instruction really clobbers r0, flow
1308 ;; relies on jump being simplejump_p in several places
1309 ;; and as r0 is fixed, this doesn't change anything
1311 [(set (pc) (label_ref (match_operand 0 "" "")))]
1315 if (get_attr_length (insn) == 2)
1316 return \"bra%#\\t%0\";
1319 static char buffer [100];
1320 const char * tmp_reg;
1321 const char * ldi_insn;
1323 tmp_reg = reg_names [COMPILER_SCRATCH_REGISTER];
1325 ldi_insn = TARGET_SMALL_MODEL ? \"ldi:20\" : \"ldi:32\";
1327 sprintf (buffer, \"%s\\t%%0, %s\\t;\\n\\tjmp%%#\\t@%s\\t;\",
1328 ldi_insn, tmp_reg, tmp_reg);
1333 [(set (attr "length") (if_then_else (ltu (plus (minus (match_dup 0) (pc))
1337 (if_then_else (eq_attr "size" "small")
1340 (set_attr "delay_type" "delayed")]
1343 ;; Indirect jump through a register
1344 (define_insn "indirect_jump"
1345 [(set (pc) (match_operand:SI 0 "nonimmediate_operand" "r"))]
1346 "GET_CODE (operands[0]) != MEM || GET_CODE (XEXP (operands[0], 0)) != PLUS"
1348 [(set_attr "delay_type" "delayed")]
1351 (define_insn "tablejump"
1352 [(set (pc) (match_operand:SI 0 "register_operand" "r"))
1353 (use (label_ref (match_operand 1 "" "")))]
1356 [(set_attr "delay_type" "delayed")]
1360 ;;{{{ Function Prologues and Epilogues
1362 ;; Called after register allocation to add any instructions needed for the
1363 ;; prologue. Using a prologue insn is favored compared to putting all of the
1364 ;; instructions in output_function_prologue(), since it allows the scheduler
1365 ;; to intermix instructions with the saves of the caller saved registers. In
1366 ;; some cases, it might be necessary to emit a barrier instruction as the last
1367 ;; insn to prevent such scheduling.
1368 (define_expand "prologue"
1369 [(clobber (const_int 0))]
1372 fr30_expand_prologue ();
1377 ;; Called after register allocation to add any instructions needed for the
1378 ;; epilogue. Using an epilogue insn is favored compared to putting all of the
1379 ;; instructions in output_function_epilogue(), since it allows the scheduler
1380 ;; to intermix instructions with the restores of the caller saved registers.
1381 ;; In some cases, it might be necessary to emit a barrier instruction as the
1382 ;; first insn to prevent such scheduling.
1383 (define_expand "epilogue"
1387 fr30_expand_epilogue ();
1392 (define_insn "return_from_func"
1397 [(set_attr "delay_type" "delayed")]
1400 (define_insn "leave_func"
1401 [(set (reg:SI 15) (reg:SI 14))
1402 (set (reg:SI 14) (mem:SI (post_inc:SI (reg:SI 15))))]
1407 (define_insn "enter_func"
1408 [(set:SI (mem:SI (minus:SI (reg:SI 15)
1412 (minus:SI (reg:SI 15)
1415 (minus:SI (reg:SI 15)
1416 (match_operand 0 "immediate_operand" "i")))]
1419 [(set_attr "delay_type" "other")]
1425 ;; No operation, needed in case the user uses -g but not -O.
1432 ;; Pseudo instruction that prevents the scheduler from moving code above this
1434 (define_insn "blockage"
1435 [(unspec_volatile [(const_int 0)] 0)]
1438 [(set_attr "length" "0")]