1 ;; Mips.md Machine Description for MIPS based processors
2 ;; Copyright (C) 1989-2013 Free Software Foundation, Inc.
3 ;; Contributed by A. Lichnewsky, lich@inria.inria.fr
4 ;; Changes by Michael Meissner, meissner@osf.org
5 ;; 64-bit r4000 support by Ian Lance Taylor, ian@cygnus.com, and
6 ;; Brendan Eich, brendan@microunity.com.
8 ;; This file is part of GCC.
10 ;; GCC is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 3, or (at your option)
15 ;; GCC is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GCC; see the file COPYING3. If not see
22 ;; <http://www.gnu.org/licenses/>.
24 (define_enum "processor" [
70 (define_c_enum "unspec" [
71 ;; Unaligned accesses.
77 ;; Integer operations that are too cumbersome to describe directly.
82 ;; Floating-point moves.
98 UNSPEC_POTENTIAL_CPRESTORE
103 UNSPEC_SET_GOT_VERSION
104 UNSPEC_UPDATE_GOT_VERSION
106 ;; Symbolic accesses.
111 UNSPEC_UNSHIFTED_HIGH
113 ;; MIPS16 constant pools.
115 UNSPEC_CONSTTABLE_INT
116 UNSPEC_CONSTTABLE_FLOAT
118 ;; Blockage and synchronisation.
125 ;; Cache manipulation.
127 UNSPEC_R10K_CACHE_BARRIER
129 ;; Interrupt handling.
137 ;; Used in a call expression in place of args_size. It's present for PIC
138 ;; indirect calls where it contains args_size and the function symbol.
141 ;; MIPS16 casesi jump table dispatch.
142 UNSPEC_CASESI_DISPATCH
145 UNSPEC_PROBE_STACK_RANGE
149 [(TLS_GET_TP_REGNUM 3)
151 (PIC_FUNCTION_ADDR_REGNUM 25)
152 (RETURN_ADDR_REGNUM 31)
153 (CPRESTORE_SLOT_REGNUM 76)
154 (GOT_VERSION_REGNUM 79)
156 ;; PIC long branch sequences are never longer than 100 bytes.
157 (MAX_PIC_BRANCH_LENGTH 100)
161 (include "predicates.md")
162 (include "constraints.md")
164 ;; ....................
168 ;; ....................
170 (define_attr "got" "unset,xgot_high,load"
171 (const_string "unset"))
173 ;; For jal instructions, this attribute is DIRECT when the target address
174 ;; is symbolic and INDIRECT when it is a register.
175 (define_attr "jal" "unset,direct,indirect"
176 (const_string "unset"))
178 ;; This attribute is YES if the instruction is a jal macro (not a
179 ;; real jal instruction).
181 ;; jal is always a macro for TARGET_CALL_CLOBBERED_GP because it includes
182 ;; an instruction to restore $gp. Direct jals are also macros for
183 ;; !TARGET_ABSOLUTE_JUMPS because they first load the target address
185 (define_attr "jal_macro" "no,yes"
186 (cond [(eq_attr "jal" "direct")
187 (symbol_ref "(TARGET_CALL_CLOBBERED_GP || !TARGET_ABSOLUTE_JUMPS
188 ? JAL_MACRO_YES : JAL_MACRO_NO)")
189 (eq_attr "jal" "indirect")
190 (symbol_ref "(TARGET_CALL_CLOBBERED_GP
191 ? JAL_MACRO_YES : JAL_MACRO_NO)")]
192 (const_string "no")))
194 ;; Classification of moves, extensions and truncations. Most values
195 ;; are as for "type" (see below) but there are also the following
196 ;; move-specific values:
198 ;; constN move an N-constraint integer into a MIPS16 register
199 ;; sll0 "sll DEST,SRC,0", which on 64-bit targets is guaranteed
200 ;; to produce a sign-extended DEST, even if SRC is not
201 ;; properly sign-extended
202 ;; ext_ins EXT, DEXT, INS or DINS instruction
203 ;; andi a single ANDI instruction
204 ;; loadpool move a constant into a MIPS16 register by loading it
206 ;; shift_shift a shift left followed by a shift right
208 ;; This attribute is used to determine the instruction's length and
209 ;; scheduling type. For doubleword moves, the attribute always describes
210 ;; the split instructions; in some cases, it is more appropriate for the
211 ;; scheduling type to be "multi" instead.
212 (define_attr "move_type"
213 "unknown,load,fpload,store,fpstore,mtc,mfc,mtlo,mflo,imul,move,fmove,
214 const,constN,signext,ext_ins,logical,arith,sll0,andi,loadpool,
216 (const_string "unknown"))
218 (define_attr "alu_type" "unknown,add,sub,not,nor,and,or,xor"
219 (const_string "unknown"))
221 ;; Main data type used by the insn
222 (define_attr "mode" "unknown,none,QI,HI,SI,DI,TI,SF,DF,TF,FPSW"
223 (const_string "unknown"))
225 ;; True if the main data type is twice the size of a word.
226 (define_attr "dword_mode" "no,yes"
227 (cond [(and (eq_attr "mode" "DI,DF")
228 (not (match_test "TARGET_64BIT")))
231 (and (eq_attr "mode" "TI,TF")
232 (match_test "TARGET_64BIT"))
233 (const_string "yes")]
234 (const_string "no")))
236 ;; Attributes describing a sync loop. These loops have the form:
238 ;; if (RELEASE_BARRIER == YES) sync
240 ;; if ((OLDVAL & INCLUSIVE_MASK) != REQUIRED_OLDVAL) goto 2
241 ;; CMP = 0 [delay slot]
242 ;; $TMP1 = OLDVAL & EXCLUSIVE_MASK
243 ;; $TMP2 = INSN1 (OLDVAL, INSN1_OP2)
244 ;; $TMP3 = INSN2 ($TMP2, INCLUSIVE_MASK)
245 ;; $AT |= $TMP1 | $TMP3
246 ;; if (!commit (*MEM = $AT)) goto 1.
247 ;; if (INSN1 != MOVE && INSN1 != LI) NEWVAL = $TMP3 [delay slot]
249 ;; if (ACQUIRE_BARRIER == YES) sync
252 ;; where "$" values are temporaries and where the other values are
253 ;; specified by the attributes below. Values are specified as operand
254 ;; numbers and insns are specified as enums. If no operand number is
255 ;; specified, the following values are used instead:
260 ;; - INCLUSIVE_MASK: -1
261 ;; - REQUIRED_OLDVAL: OLDVAL & INCLUSIVE_MASK
262 ;; - EXCLUSIVE_MASK: 0
264 ;; MEM and INSN1_OP2 are required.
266 ;; Ideally, the operand attributes would be integers, with -1 meaning "none",
267 ;; but the gen* programs don't yet support that.
268 (define_attr "sync_mem" "none,0,1,2,3,4,5" (const_string "none"))
269 (define_attr "sync_oldval" "none,0,1,2,3,4,5" (const_string "none"))
270 (define_attr "sync_cmp" "none,0,1,2,3,4,5" (const_string "none"))
271 (define_attr "sync_newval" "none,0,1,2,3,4,5" (const_string "none"))
272 (define_attr "sync_inclusive_mask" "none,0,1,2,3,4,5" (const_string "none"))
273 (define_attr "sync_exclusive_mask" "none,0,1,2,3,4,5" (const_string "none"))
274 (define_attr "sync_required_oldval" "none,0,1,2,3,4,5" (const_string "none"))
275 (define_attr "sync_insn1_op2" "none,0,1,2,3,4,5" (const_string "none"))
276 (define_attr "sync_insn1" "move,li,addu,addiu,subu,and,andi,or,ori,xor,xori"
277 (const_string "move"))
278 (define_attr "sync_insn2" "nop,and,xor,not"
279 (const_string "nop"))
280 ;; Memory model specifier.
281 ;; "0"-"9" values specify the operand that stores the memory model value.
282 ;; "10" specifies MEMMODEL_ACQ_REL,
283 ;; "11" specifies MEMMODEL_ACQUIRE.
284 (define_attr "sync_memmodel" "" (const_int 10))
286 ;; Accumulator operand for madd patterns.
287 (define_attr "accum_in" "none,0,1,2,3,4,5" (const_string "none"))
289 ;; Classification of each insn.
290 ;; branch conditional branch
291 ;; jump unconditional jump
292 ;; call unconditional call
293 ;; load load instruction(s)
294 ;; fpload floating point load
295 ;; fpidxload floating point indexed load
296 ;; store store instruction(s)
297 ;; fpstore floating point store
298 ;; fpidxstore floating point indexed store
299 ;; prefetch memory prefetch (register + offset)
300 ;; prefetchx memory indexed prefetch (register + register)
301 ;; condmove conditional moves
302 ;; mtc transfer to coprocessor
303 ;; mfc transfer from coprocessor
304 ;; mthi transfer to a hi register
305 ;; mtlo transfer to a lo register
306 ;; mfhi transfer from a hi register
307 ;; mflo transfer from a lo register
308 ;; const load constant
309 ;; arith integer arithmetic instructions
310 ;; logical integer logical instructions
311 ;; shift integer shift instructions
312 ;; slt set less than instructions
313 ;; signext sign extend instructions
314 ;; clz the clz and clo instructions
315 ;; pop the pop instruction
316 ;; trap trap if instructions
317 ;; imul integer multiply 2 operands
318 ;; imul3 integer multiply 3 operands
319 ;; imul3nc integer multiply 3 operands without clobbering HI/LO
320 ;; imadd integer multiply-add
321 ;; idiv integer divide 2 operands
322 ;; idiv3 integer divide 3 operands
323 ;; move integer register move ({,D}ADD{,U} with rt = 0)
324 ;; fmove floating point register move
325 ;; fadd floating point add/subtract
326 ;; fmul floating point multiply
327 ;; fmadd floating point multiply-add
328 ;; fdiv floating point divide
329 ;; frdiv floating point reciprocal divide
330 ;; frdiv1 floating point reciprocal divide step 1
331 ;; frdiv2 floating point reciprocal divide step 2
332 ;; fabs floating point absolute value
333 ;; fneg floating point negation
334 ;; fcmp floating point compare
335 ;; fcvt floating point convert
336 ;; fsqrt floating point square root
337 ;; frsqrt floating point reciprocal square root
338 ;; frsqrt1 floating point reciprocal square root step1
339 ;; frsqrt2 floating point reciprocal square root step2
340 ;; dspmac DSP MAC instructions not saturating the accumulator
341 ;; dspmacsat DSP MAC instructions that saturate the accumulator
342 ;; accext DSP accumulator extract instructions
343 ;; accmod DSP accumulator modify instructions
344 ;; dspalu DSP ALU instructions not saturating the result
345 ;; dspalusat DSP ALU instructions that saturate the result
346 ;; multi multiword sequence (or user asm statements)
347 ;; atomic atomic memory update instruction
348 ;; syncloop memory atomic operation implemented as a sync loop
350 ;; ghost an instruction that produces no real code
351 ;; multimem microMIPS multiword load and store
353 "unknown,branch,jump,call,load,fpload,fpidxload,store,fpstore,fpidxstore,
354 prefetch,prefetchx,condmove,mtc,mfc,mthi,mtlo,mfhi,mflo,const,arith,logical,
355 shift,slt,signext,clz,pop,trap,imul,imul3,imul3nc,imadd,idiv,idiv3,move,
356 fmove,fadd,fmul,fmadd,fdiv,frdiv,frdiv1,frdiv2,fabs,fneg,fcmp,fcvt,fsqrt,
357 frsqrt,frsqrt1,frsqrt2,dspmac,dspmacsat,accext,accmod,dspalu,dspalusat,
358 multi,atomic,syncloop,nop,ghost,multimem"
359 (cond [(eq_attr "jal" "!unset") (const_string "call")
360 (eq_attr "got" "load") (const_string "load")
362 (eq_attr "alu_type" "add,sub") (const_string "arith")
364 (eq_attr "alu_type" "not,nor,and,or,xor") (const_string "logical")
366 ;; If a doubleword move uses these expensive instructions,
367 ;; it is usually better to schedule them in the same way
368 ;; as the singleword form, rather than as "multi".
369 (eq_attr "move_type" "load") (const_string "load")
370 (eq_attr "move_type" "fpload") (const_string "fpload")
371 (eq_attr "move_type" "store") (const_string "store")
372 (eq_attr "move_type" "fpstore") (const_string "fpstore")
373 (eq_attr "move_type" "mtc") (const_string "mtc")
374 (eq_attr "move_type" "mfc") (const_string "mfc")
375 (eq_attr "move_type" "mtlo") (const_string "mtlo")
376 (eq_attr "move_type" "mflo") (const_string "mflo")
378 ;; These types of move are always single insns.
379 (eq_attr "move_type" "imul") (const_string "imul")
380 (eq_attr "move_type" "fmove") (const_string "fmove")
381 (eq_attr "move_type" "loadpool") (const_string "load")
382 (eq_attr "move_type" "signext") (const_string "signext")
383 (eq_attr "move_type" "ext_ins") (const_string "arith")
384 (eq_attr "move_type" "arith") (const_string "arith")
385 (eq_attr "move_type" "logical") (const_string "logical")
386 (eq_attr "move_type" "sll0") (const_string "shift")
387 (eq_attr "move_type" "andi") (const_string "logical")
389 ;; These types of move are always split.
390 (eq_attr "move_type" "constN,shift_shift")
391 (const_string "multi")
393 ;; These types of move are split for doubleword modes only.
394 (and (eq_attr "move_type" "move,const")
395 (eq_attr "dword_mode" "yes"))
396 (const_string "multi")
397 (eq_attr "move_type" "move") (const_string "move")
398 (eq_attr "move_type" "const") (const_string "const")
399 (eq_attr "sync_mem" "!none") (const_string "syncloop")]
400 (const_string "unknown")))
402 ;; Mode for conversion types (fcvt)
403 ;; I2S integer to float single (SI/DI to SF)
404 ;; I2D integer to float double (SI/DI to DF)
405 ;; S2I float to integer (SF to SI/DI)
406 ;; D2I float to integer (DF to SI/DI)
407 ;; D2S double to float single
408 ;; S2D float single to double
410 (define_attr "cnv_mode" "unknown,I2S,I2D,S2I,D2I,D2S,S2D"
411 (const_string "unknown"))
413 ;; Is this an extended instruction in mips16 mode?
414 (define_attr "extended_mips16" "no,yes"
415 (if_then_else (ior ;; In general, constant-pool loads are extended
416 ;; instructions. We don't yet optimize for 16-bit
417 ;; PC-relative references.
418 (eq_attr "move_type" "sll0,loadpool")
419 (eq_attr "jal" "direct")
420 (eq_attr "got" "load"))
422 (const_string "no")))
424 (define_attr "compression" "none,all,micromips"
425 (const_string "none"))
427 (define_attr "enabled" "no,yes"
428 (if_then_else (ior (eq_attr "compression" "all,none")
429 (and (eq_attr "compression" "micromips")
430 (match_test "TARGET_MICROMIPS")))
432 (const_string "no")))
434 ;; The number of individual instructions that a non-branch pattern generates,
435 ;; using units of BASE_INSN_LENGTH.
436 (define_attr "insn_count" ""
437 (cond [;; "Ghost" instructions occupy no space.
438 (eq_attr "type" "ghost")
441 ;; Extended instructions count as 2.
442 (and (eq_attr "extended_mips16" "yes")
443 (match_test "TARGET_MIPS16"))
446 ;; A GOT load followed by an add of $gp. This is not used for MIPS16.
447 (eq_attr "got" "xgot_high")
450 ;; SHIFT_SHIFTs are decomposed into two separate instructions.
451 ;; They are extended instructions on MIPS16 targets.
452 (eq_attr "move_type" "shift_shift")
453 (if_then_else (match_test "TARGET_MIPS16")
457 ;; Check for doubleword moves that are decomposed into two
458 ;; instructions. The individual instructions are unextended
460 (and (eq_attr "move_type" "mtc,mfc,mtlo,mflo,move")
461 (eq_attr "dword_mode" "yes"))
464 ;; Constants, loads and stores are handled by external routines.
465 (and (eq_attr "move_type" "const,constN")
466 (eq_attr "dword_mode" "yes"))
467 (symbol_ref "mips_split_const_insns (operands[1])")
468 (eq_attr "move_type" "const,constN")
469 (symbol_ref "mips_const_insns (operands[1])")
470 (eq_attr "move_type" "load,fpload")
471 (symbol_ref "mips_load_store_insns (operands[1], insn)")
472 (eq_attr "move_type" "store,fpstore")
473 (symbol_ref "mips_load_store_insns (operands[0], insn)
474 + (TARGET_FIX_24K ? 1 : 0)")
476 ;; In the worst case, a call macro will take 8 instructions:
478 ;; lui $25,%call_hi(FOO)
480 ;; lw $25,%call_lo(FOO)($25)
486 (eq_attr "jal_macro" "yes")
489 ;; Various VR4120 errata require a nop to be inserted after a macc
490 ;; instruction. The assembler does this for us, so account for
491 ;; the worst-case length here.
492 (and (eq_attr "type" "imadd")
493 (match_test "TARGET_FIX_VR4120"))
496 ;; VR4120 errata MD(4): if there are consecutive dmult instructions,
497 ;; the result of the second one is missed. The assembler should work
498 ;; around this by inserting a nop after the first dmult.
499 (and (eq_attr "type" "imul,imul3")
500 (eq_attr "mode" "DI")
501 (match_test "TARGET_FIX_VR4120"))
504 (eq_attr "type" "idiv,idiv3")
505 (symbol_ref "mips_idiv_insns ()")
507 (not (eq_attr "sync_mem" "none"))
508 (symbol_ref "mips_sync_loop_insns (insn, operands)")]
511 ;; Length of instruction in bytes. The default is derived from "insn_count",
512 ;; but there are special cases for branches (which must be handled here)
513 ;; and for compressed single instructions.
514 (define_attr "length" ""
515 (cond [(and (eq_attr "compression" "micromips,all")
516 (eq_attr "dword_mode" "no")
517 (match_test "TARGET_MICROMIPS"))
520 ;; Direct microMIPS branch instructions have a range of
521 ;; [-0x10000,0xfffe], otherwise the range is [-0x20000,0x1fffc].
522 ;; If a branch is outside this range, we have a choice of two
525 ;; For PIC, an out-of-range branch like:
530 ;; becomes the equivalent of:
539 ;; The non-PIC case is similar except that we use a direct
540 ;; jump instead of an la/jr pair. Since the target of this
541 ;; jump is an absolute 28-bit bit address (the other bits
542 ;; coming from the address of the delay slot) this form cannot
543 ;; cross a 256MB boundary. We could provide the option of
544 ;; using la/jr in this case too, but we do not do so at
547 ;; The value we specify here does not account for the delay slot
548 ;; instruction, whose length is added separately. If the RTL
549 ;; pattern has no explicit delay slot, mips_adjust_insn_length
550 ;; will add the length of the implicit nop. The range of
551 ;; [-0x20000, 0x1fffc] from the address of the delay slot
552 ;; therefore translates to a range of:
554 ;; [-(0x20000 - sizeof (branch)), 0x1fffc - sizeof (slot)]
555 ;; == [-0x1fffc, 0x1fff8]
557 ;; from the shorten_branches reference address.
558 (and (eq_attr "type" "branch")
559 (not (match_test "TARGET_MIPS16")))
560 (cond [;; Any variant can handle the 17-bit range.
561 (and (le (minus (match_dup 0) (pc)) (const_int 65532))
562 (le (minus (pc) (match_dup 0)) (const_int 65534)))
565 ;; The 18-bit range is OK other than for microMIPS.
566 (and (not (match_test "TARGET_MICROMIPS"))
567 (and (le (minus (match_dup 0) (pc)) (const_int 131064))
568 (le (minus (pc) (match_dup 0)) (const_int 131068))))
571 ;; The non-PIC case: branch, first delay slot, and J.
572 (match_test "TARGET_ABSOLUTE_JUMPS")
575 ;; Use MAX_PIC_BRANCH_LENGTH as a (gross) overestimate.
576 ;; mips_adjust_insn_length substitutes the correct length.
578 ;; Note that we can't simply use (symbol_ref ...) here
579 ;; because genattrtab needs to know the maximum length
581 (const_int MAX_PIC_BRANCH_LENGTH))
583 ;; An unextended MIPS16 branch has a range of [-0x100, 0xfe]
584 ;; from the address of the following instruction, which leads
587 ;; [-(0x100 - sizeof (branch)), 0xfe]
590 ;; from the shorten_branches reference address. Extended branches
591 ;; likewise have a range of [-0x10000, 0xfffe] from the address
592 ;; of the following instruction, which leads to a range of:
594 ;; [-(0x10000 - sizeof (branch)), 0xfffe]
595 ;; == [-0xfffc, 0xfffe]
597 ;; from the reference address.
599 ;; When a branch is out of range, mips_reorg splits it into a form
600 ;; that uses in-range branches. There are four basic sequences:
602 ;; (1) Absolute addressing with a readable text segment
603 ;; (32-bit addresses):
606 ;; move $1,$2 2 bytes
607 ;; lw $2,label 2 bytes
609 ;; move $2,$1 2 bytes
610 ;; .align 2 0 or 2 bytes
612 ;; .word target 4 bytes
614 ;; (16 bytes in the worst case)
616 ;; (2) Absolute addressing with a readable text segment
617 ;; (64-bit addresses):
620 ;; move $1,$2 2 bytes
621 ;; ld $2,label 2 bytes
623 ;; move $2,$1 2 bytes
624 ;; .align 3 0 to 6 bytes
626 ;; .dword target 8 bytes
628 ;; (24 bytes in the worst case)
630 ;; (3) Absolute addressing without a readable text segment
631 ;; (which requires 32-bit addresses at present):
634 ;; move $1,$2 2 bytes
635 ;; lui $2,%hi(target) 4 bytes
638 ;; addiu $2,%lo(target) 4 bytes
640 ;; move $2,$1 2 bytes
644 ;; (4) PIC addressing (which requires 32-bit addresses at present):
647 ;; move $1,$2 2 bytes
648 ;; lw $2,cprestore 0, 2 or 4 bytes
649 ;; lw $2,%got(target)($2) 4 bytes
650 ;; addiu $2,%lo(target) 4 bytes
652 ;; move $2,$1 2 bytes
654 ;; (20 bytes in the worst case)
655 (and (eq_attr "type" "branch")
656 (match_test "TARGET_MIPS16"))
657 (cond [(and (le (minus (match_dup 0) (pc)) (const_int 254))
658 (le (minus (pc) (match_dup 0)) (const_int 254)))
660 (and (le (minus (match_dup 0) (pc)) (const_int 65534))
661 (le (minus (pc) (match_dup 0)) (const_int 65532)))
663 (and (match_test "TARGET_ABICALLS")
664 (not (match_test "TARGET_ABSOLUTE_ABICALLS")))
666 (match_test "Pmode == SImode")
669 (symbol_ref "get_attr_insn_count (insn) * BASE_INSN_LENGTH")))
671 ;; Attribute describing the processor.
672 (define_enum_attr "cpu" "processor"
673 (const (symbol_ref "mips_tune")))
675 ;; The type of hardware hazard associated with this instruction.
676 ;; DELAY means that the next instruction cannot read the result
677 ;; of this one. HILO means that the next two instructions cannot
678 ;; write to HI or LO.
679 (define_attr "hazard" "none,delay,hilo"
680 (cond [(and (eq_attr "type" "load,fpload,fpidxload")
681 (match_test "ISA_HAS_LOAD_DELAY"))
682 (const_string "delay")
684 (and (eq_attr "type" "mfc,mtc")
685 (match_test "ISA_HAS_XFER_DELAY"))
686 (const_string "delay")
688 (and (eq_attr "type" "fcmp")
689 (match_test "ISA_HAS_FCMP_DELAY"))
690 (const_string "delay")
692 ;; The r4000 multiplication patterns include an mflo instruction.
693 (and (eq_attr "type" "imul")
694 (match_test "TARGET_FIX_R4000"))
695 (const_string "hilo")
697 (and (eq_attr "type" "mfhi,mflo")
698 (not (match_test "ISA_HAS_HILO_INTERLOCKS")))
699 (const_string "hilo")]
700 (const_string "none")))
702 ;; Can the instruction be put into a delay slot?
703 (define_attr "can_delay" "no,yes"
704 (if_then_else (and (eq_attr "type" "!branch,call,jump")
705 (eq_attr "hazard" "none")
706 (match_test "get_attr_insn_count (insn) == 1"))
708 (const_string "no")))
710 ;; Attribute defining whether or not we can use the branch-likely
712 (define_attr "branch_likely" "no,yes"
713 (if_then_else (match_test "GENERATE_BRANCHLIKELY")
715 (const_string "no")))
717 ;; True if an instruction might assign to hi or lo when reloaded.
718 ;; This is used by the TUNE_MACC_CHAINS code.
719 (define_attr "may_clobber_hilo" "no,yes"
720 (if_then_else (eq_attr "type" "imul,imul3,imadd,idiv,mthi,mtlo")
722 (const_string "no")))
724 ;; Describe a user's asm statement.
725 (define_asm_attributes
726 [(set_attr "type" "multi")
727 (set_attr "can_delay" "no")])
729 ;; This mode iterator allows 32-bit and 64-bit GPR patterns to be generated
730 ;; from the same template.
731 (define_mode_iterator GPR [SI (DI "TARGET_64BIT")])
733 ;; A copy of GPR that can be used when a pattern has two independent
735 (define_mode_iterator GPR2 [SI (DI "TARGET_64BIT")])
737 (define_mode_iterator MOVEP1 [SI SF])
738 (define_mode_iterator MOVEP2 [SI SF])
740 ;; This mode iterator allows :HILO to be used as the mode of the
741 ;; concatenated HI and LO registers.
742 (define_mode_iterator HILO [(DI "!TARGET_64BIT") (TI "TARGET_64BIT")])
744 ;; This mode iterator allows :P to be used for patterns that operate on
745 ;; pointer-sized quantities. Exactly one of the two alternatives will match.
746 (define_mode_iterator P [(SI "Pmode == SImode") (DI "Pmode == DImode")])
748 ;; This mode iterator allows :MOVECC to be used anywhere that a
749 ;; conditional-move-type condition is needed.
750 (define_mode_iterator MOVECC [SI (DI "TARGET_64BIT")
751 (CC "TARGET_HARD_FLOAT
752 && !TARGET_LOONGSON_2EF
753 && !TARGET_MIPS5900")])
755 ;; 32-bit integer moves for which we provide move patterns.
756 (define_mode_iterator IMOVE32
765 (V4UQQ "TARGET_DSP")])
767 ;; 64-bit modes for which we provide move patterns.
768 (define_mode_iterator MOVE64
770 (V2SF "TARGET_HARD_FLOAT && TARGET_PAIRED_SINGLE_FLOAT")
771 (V2SI "TARGET_HARD_FLOAT && TARGET_LOONGSON_VECTORS")
772 (V4HI "TARGET_HARD_FLOAT && TARGET_LOONGSON_VECTORS")
773 (V8QI "TARGET_HARD_FLOAT && TARGET_LOONGSON_VECTORS")])
775 ;; 128-bit modes for which we provide move patterns on 64-bit targets.
776 (define_mode_iterator MOVE128 [TI TF])
778 ;; This mode iterator allows the QI and HI extension patterns to be
779 ;; defined from the same template.
780 (define_mode_iterator SHORT [QI HI])
782 ;; Likewise the 64-bit truncate-and-shift patterns.
783 (define_mode_iterator SUBDI [QI HI SI])
785 ;; This mode iterator allows :ANYF to be used wherever a scalar or vector
786 ;; floating-point mode is allowed.
787 (define_mode_iterator ANYF [(SF "TARGET_HARD_FLOAT")
788 (DF "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT")
789 (V2SF "TARGET_HARD_FLOAT && TARGET_PAIRED_SINGLE_FLOAT")])
791 ;; Like ANYF, but only applies to scalar modes.
792 (define_mode_iterator SCALARF [(SF "TARGET_HARD_FLOAT")
793 (DF "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT")])
795 ;; A floating-point mode for which moves involving FPRs may need to be split.
796 (define_mode_iterator SPLITF
797 [(DF "!TARGET_64BIT && TARGET_DOUBLE_FLOAT")
798 (DI "!TARGET_64BIT && TARGET_DOUBLE_FLOAT")
799 (V2SF "!TARGET_64BIT && TARGET_PAIRED_SINGLE_FLOAT")
800 (V2SI "!TARGET_64BIT && TARGET_LOONGSON_VECTORS")
801 (V4HI "!TARGET_64BIT && TARGET_LOONGSON_VECTORS")
802 (V8QI "!TARGET_64BIT && TARGET_LOONGSON_VECTORS")
803 (TF "TARGET_64BIT && TARGET_FLOAT64")])
805 ;; In GPR templates, a string like "<d>subu" will expand to "subu" in the
806 ;; 32-bit version and "dsubu" in the 64-bit version.
807 (define_mode_attr d [(SI "") (DI "d")
808 (QQ "") (HQ "") (SQ "") (DQ "d")
809 (UQQ "") (UHQ "") (USQ "") (UDQ "d")
810 (HA "") (SA "") (DA "d")
811 (UHA "") (USA "") (UDA "d")])
813 ;; Same as d but upper-case.
814 (define_mode_attr D [(SI "") (DI "D")
815 (QQ "") (HQ "") (SQ "") (DQ "D")
816 (UQQ "") (UHQ "") (USQ "") (UDQ "D")
817 (HA "") (SA "") (DA "D")
818 (UHA "") (USA "") (UDA "D")])
820 ;; This attribute gives the length suffix for a load or store instruction.
821 ;; The same suffixes work for zero and sign extensions.
822 (define_mode_attr size [(QI "b") (HI "h") (SI "w") (DI "d")])
823 (define_mode_attr SIZE [(QI "B") (HI "H") (SI "W") (DI "D")])
825 ;; This attributes gives the mode mask of a SHORT.
826 (define_mode_attr mask [(QI "0x00ff") (HI "0xffff")])
828 ;; Mode attributes for GPR loads.
829 (define_mode_attr load [(SI "lw") (DI "ld")])
830 ;; Instruction names for stores.
831 (define_mode_attr store [(QI "sb") (HI "sh") (SI "sw") (DI "sd")])
833 ;; Similarly for MIPS IV indexed FPR loads and stores.
834 (define_mode_attr loadx [(SF "lwxc1") (DF "ldxc1") (V2SF "ldxc1")])
835 (define_mode_attr storex [(SF "swxc1") (DF "sdxc1") (V2SF "sdxc1")])
837 ;; The unextended ranges of the MIPS16 addiu and daddiu instructions
838 ;; are different. Some forms of unextended addiu have an 8-bit immediate
839 ;; field but the equivalent daddiu has only a 5-bit field.
840 (define_mode_attr si8_di5 [(SI "8") (DI "5")])
842 ;; This attribute gives the best constraint to use for registers of
844 (define_mode_attr reg [(SI "d") (DI "d") (CC "z")])
846 ;; This attribute gives the format suffix for floating-point operations.
847 (define_mode_attr fmt [(SF "s") (DF "d") (V2SF "ps")])
849 ;; This attribute gives the upper-case mode name for one unit of a
850 ;; floating-point mode.
851 (define_mode_attr UNITMODE [(SF "SF") (DF "DF") (V2SF "SF")])
853 ;; This attribute gives the integer mode that has the same size as a
855 (define_mode_attr IMODE [(QQ "QI") (HQ "HI") (SQ "SI") (DQ "DI")
856 (UQQ "QI") (UHQ "HI") (USQ "SI") (UDQ "DI")
857 (HA "HI") (SA "SI") (DA "DI")
858 (UHA "HI") (USA "SI") (UDA "DI")
859 (V4UQQ "SI") (V2UHQ "SI") (V2UHA "SI")
860 (V2HQ "SI") (V2HA "SI")])
862 ;; This attribute gives the integer mode that has half the size of
863 ;; the controlling mode.
864 (define_mode_attr HALFMODE [(DF "SI") (DI "SI") (V2SF "SI")
865 (V2SI "SI") (V4HI "SI") (V8QI "SI")
868 ;; This attribute works around the early SB-1 rev2 core "F2" erratum:
870 ;; In certain cases, div.s and div.ps may have a rounding error
871 ;; and/or wrong inexact flag.
873 ;; Therefore, we only allow div.s if not working around SB-1 rev2
874 ;; errata or if a slight loss of precision is OK.
875 (define_mode_attr divide_condition
876 [DF (SF "!TARGET_FIX_SB1 || flag_unsafe_math_optimizations")
877 (V2SF "TARGET_SB1 && (!TARGET_FIX_SB1 || flag_unsafe_math_optimizations)")])
879 ;; This attribute gives the conditions under which SQRT.fmt instructions
881 (define_mode_attr sqrt_condition
882 [(SF "!ISA_MIPS1") (DF "!ISA_MIPS1") (V2SF "TARGET_SB1")])
884 ;; This attribute gives the conditions under which RECIP.fmt and RSQRT.fmt
885 ;; instructions can be used. The MIPS32 and MIPS64 ISAs say that RECIP.D
886 ;; and RSQRT.D are unpredictable when doubles are stored in pairs of FPRs,
887 ;; so for safety's sake, we apply this restriction to all targets.
888 (define_mode_attr recip_condition
890 (DF "ISA_HAS_FP4 && TARGET_FLOAT64")
891 (V2SF "TARGET_SB1")])
893 ;; This code iterator allows signed and unsigned widening multiplications
894 ;; to use the same template.
895 (define_code_iterator any_extend [sign_extend zero_extend])
897 ;; This code iterator allows the two right shift instructions to be
898 ;; generated from the same template.
899 (define_code_iterator any_shiftrt [ashiftrt lshiftrt])
901 ;; This code iterator allows the three shift instructions to be generated
902 ;; from the same template.
903 (define_code_iterator any_shift [ashift ashiftrt lshiftrt])
905 ;; This code iterator allows unsigned and signed division to be generated
906 ;; from the same template.
907 (define_code_iterator any_div [div udiv])
909 ;; This code iterator allows unsigned and signed modulus to be generated
910 ;; from the same template.
911 (define_code_iterator any_mod [mod umod])
913 ;; This code iterator allows all native floating-point comparisons to be
914 ;; generated from the same template.
915 (define_code_iterator fcond [unordered uneq unlt unle eq lt le])
917 ;; This code iterator is used for comparisons that can be implemented
918 ;; by swapping the operands.
919 (define_code_iterator swapped_fcond [ge gt unge ungt])
921 ;; Equality operators.
922 (define_code_iterator equality_op [eq ne])
924 ;; These code iterators allow the signed and unsigned scc operations to use
925 ;; the same template.
926 (define_code_iterator any_gt [gt gtu])
927 (define_code_iterator any_ge [ge geu])
928 (define_code_iterator any_lt [lt ltu])
929 (define_code_iterator any_le [le leu])
931 (define_code_iterator any_return [return simple_return])
933 ;; <u> expands to an empty string when doing a signed operation and
934 ;; "u" when doing an unsigned operation.
935 (define_code_attr u [(sign_extend "") (zero_extend "u")
943 ;; <U> is like <u> except uppercase.
944 (define_code_attr U [(sign_extend "") (zero_extend "U")])
946 ;; <su> is like <u>, but the signed form expands to "s" rather than "".
947 (define_code_attr su [(sign_extend "s") (zero_extend "u")])
949 ;; <optab> expands to the name of the optab for a particular code.
950 (define_code_attr optab [(ashift "ashl")
959 (simple_return "simple_return")])
961 ;; <insn> expands to the name of the insn that implements a particular code.
962 (define_code_attr insn [(ashift "sll")
971 ;; <immediate_insn> expands to the name of the insn that implements
972 ;; a particular code to operate on immediate values.
973 (define_code_attr immediate_insn [(ior "ori")
977 (define_code_attr shift_compression [(ashift "micromips")
978 (lshiftrt "micromips")
981 ;; <fcond> is the c.cond.fmt condition associated with a particular code.
982 (define_code_attr fcond [(unordered "un")
990 ;; Similar, but for swapped conditions.
991 (define_code_attr swapped_fcond [(ge "le")
996 ;; The value of the bit when the branch is taken for branch_bit patterns.
997 ;; Comparison is always against zero so this depends on the operator.
998 (define_code_attr bbv [(eq "0") (ne "1")])
1000 ;; This is the inverse value of bbv.
1001 (define_code_attr bbinv [(eq "1") (ne "0")])
1003 ;; .........................
1005 ;; Branch, call and jump delay slots
1007 ;; .........................
1009 (define_delay (and (eq_attr "type" "branch")
1010 (not (match_test "TARGET_MIPS16"))
1011 (eq_attr "branch_likely" "yes"))
1012 [(eq_attr "can_delay" "yes")
1014 (eq_attr "can_delay" "yes")])
1016 ;; Branches that don't have likely variants do not annul on false.
1017 (define_delay (and (eq_attr "type" "branch")
1018 (not (match_test "TARGET_MIPS16"))
1019 (eq_attr "branch_likely" "no"))
1020 [(eq_attr "can_delay" "yes")
1024 (define_delay (eq_attr "type" "jump")
1025 [(eq_attr "can_delay" "yes")
1029 (define_delay (and (eq_attr "type" "call")
1030 (eq_attr "jal_macro" "no"))
1031 [(eq_attr "can_delay" "yes")
1035 ;; Pipeline descriptions.
1037 ;; generic.md provides a fallback for processors without a specific
1038 ;; pipeline description. It is derived from the old define_function_unit
1039 ;; version and uses the "alu" and "imuldiv" units declared below.
1041 ;; Some of the processor-specific files are also derived from old
1042 ;; define_function_unit descriptions and simply override the parts of
1043 ;; generic.md that don't apply. The other processor-specific files
1044 ;; are self-contained.
1045 (define_automaton "alu,imuldiv")
1047 (define_cpu_unit "alu" "alu")
1048 (define_cpu_unit "imuldiv" "imuldiv")
1050 ;; Ghost instructions produce no real code and introduce no hazards.
1051 ;; They exist purely to express an effect on dataflow.
1052 (define_insn_reservation "ghost" 0
1053 (eq_attr "type" "ghost")
1073 (include "10000.md")
1074 (include "loongson2ef.md")
1075 (include "loongson3a.md")
1076 (include "octeon.md")
1078 (include "sr71k.md")
1081 (include "generic.md")
1084 ;; ....................
1086 ;; CONDITIONAL TRAPS
1088 ;; ....................
1092 [(trap_if (const_int 1) (const_int 0))]
1095 if (ISA_HAS_COND_TRAP)
1096 return "teq\t$0,$0";
1097 else if (TARGET_MIPS16)
1102 [(set_attr "type" "trap")])
1104 (define_expand "ctrap<mode>4"
1105 [(trap_if (match_operator 0 "comparison_operator"
1106 [(match_operand:GPR 1 "reg_or_0_operand")
1107 (match_operand:GPR 2 "arith_operand")])
1108 (match_operand 3 "const_0_operand"))]
1111 mips_expand_conditional_trap (operands[0]);
1115 (define_insn "*conditional_trap<mode>"
1116 [(trap_if (match_operator:GPR 0 "trap_comparison_operator"
1117 [(match_operand:GPR 1 "reg_or_0_operand" "dJ")
1118 (match_operand:GPR 2 "arith_operand" "dI")])
1122 [(set_attr "type" "trap")])
1125 ;; ....................
1129 ;; ....................
1132 (define_insn "add<mode>3"
1133 [(set (match_operand:ANYF 0 "register_operand" "=f")
1134 (plus:ANYF (match_operand:ANYF 1 "register_operand" "f")
1135 (match_operand:ANYF 2 "register_operand" "f")))]
1137 "add.<fmt>\t%0,%1,%2"
1138 [(set_attr "type" "fadd")
1139 (set_attr "mode" "<UNITMODE>")])
1141 (define_expand "add<mode>3"
1142 [(set (match_operand:GPR 0 "register_operand")
1143 (plus:GPR (match_operand:GPR 1 "register_operand")
1144 (match_operand:GPR 2 "arith_operand")))]
1147 (define_insn "*add<mode>3"
1148 [(set (match_operand:GPR 0 "register_operand" "=!u,d,!u,!u,!ks,!d,d")
1149 (plus:GPR (match_operand:GPR 1 "register_operand" "!u,d,!u,!ks,!ks,0,d")
1150 (match_operand:GPR 2 "arith_operand" "!u,d,Uead,Uuw6,Uesp,Usb4,Q")))]
1153 if (which_alternative == 0
1154 || which_alternative == 1)
1155 return "<d>addu\t%0,%1,%2";
1157 return "<d>addiu\t%0,%1,%2";
1159 [(set_attr "alu_type" "add")
1160 (set_attr "compression" "micromips,*,micromips,micromips,micromips,micromips,*")
1161 (set_attr "mode" "<MODE>")])
1163 (define_insn "*add<mode>3_mips16"
1164 [(set (match_operand:GPR 0 "register_operand" "=ks,ks,d,d,d,d,d,d,d")
1165 (plus:GPR (match_operand:GPR 1 "register_operand" "ks,ks,ks,ks,0,0,d,d,d")
1166 (match_operand:GPR 2 "arith_operand" "Usd8,Q,Uuw<si8_di5>,Q,Usb<si8_di5>,Q,Usb4,O,d")))]
1178 [(set_attr "alu_type" "add")
1179 (set_attr "mode" "<MODE>")
1180 (set_attr "extended_mips16" "no,yes,no,yes,no,yes,no,yes,no")])
1182 ;; On the mips16, we can sometimes split an add of a constant which is
1183 ;; a 4 byte instruction into two adds which are both 2 byte
1184 ;; instructions. There are two cases: one where we are adding a
1185 ;; constant plus a register to another register, and one where we are
1186 ;; simply adding a constant to a register.
1189 [(set (match_operand:SI 0 "d_operand")
1190 (plus:SI (match_dup 0)
1191 (match_operand:SI 1 "const_int_operand")))]
1192 "TARGET_MIPS16 && reload_completed && !TARGET_DEBUG_D_MODE
1193 && ((INTVAL (operands[1]) > 0x7f
1194 && INTVAL (operands[1]) <= 0x7f + 0x7f)
1195 || (INTVAL (operands[1]) < - 0x80
1196 && INTVAL (operands[1]) >= - 0x80 - 0x80))"
1197 [(set (match_dup 0) (plus:SI (match_dup 0) (match_dup 1)))
1198 (set (match_dup 0) (plus:SI (match_dup 0) (match_dup 2)))]
1200 HOST_WIDE_INT val = INTVAL (operands[1]);
1204 operands[1] = GEN_INT (0x7f);
1205 operands[2] = GEN_INT (val - 0x7f);
1209 operands[1] = GEN_INT (- 0x80);
1210 operands[2] = GEN_INT (val + 0x80);
1215 [(set (match_operand:SI 0 "d_operand")
1216 (plus:SI (match_operand:SI 1 "d_operand")
1217 (match_operand:SI 2 "const_int_operand")))]
1218 "TARGET_MIPS16 && reload_completed && !TARGET_DEBUG_D_MODE
1219 && REGNO (operands[0]) != REGNO (operands[1])
1220 && ((INTVAL (operands[2]) > 0x7
1221 && INTVAL (operands[2]) <= 0x7 + 0x7f)
1222 || (INTVAL (operands[2]) < - 0x8
1223 && INTVAL (operands[2]) >= - 0x8 - 0x80))"
1224 [(set (match_dup 0) (plus:SI (match_dup 1) (match_dup 2)))
1225 (set (match_dup 0) (plus:SI (match_dup 0) (match_dup 3)))]
1227 HOST_WIDE_INT val = INTVAL (operands[2]);
1231 operands[2] = GEN_INT (0x7);
1232 operands[3] = GEN_INT (val - 0x7);
1236 operands[2] = GEN_INT (- 0x8);
1237 operands[3] = GEN_INT (val + 0x8);
1242 [(set (match_operand:DI 0 "d_operand")
1243 (plus:DI (match_dup 0)
1244 (match_operand:DI 1 "const_int_operand")))]
1245 "TARGET_MIPS16 && TARGET_64BIT && reload_completed && !TARGET_DEBUG_D_MODE
1246 && ((INTVAL (operands[1]) > 0xf
1247 && INTVAL (operands[1]) <= 0xf + 0xf)
1248 || (INTVAL (operands[1]) < - 0x10
1249 && INTVAL (operands[1]) >= - 0x10 - 0x10))"
1250 [(set (match_dup 0) (plus:DI (match_dup 0) (match_dup 1)))
1251 (set (match_dup 0) (plus:DI (match_dup 0) (match_dup 2)))]
1253 HOST_WIDE_INT val = INTVAL (operands[1]);
1257 operands[1] = GEN_INT (0xf);
1258 operands[2] = GEN_INT (val - 0xf);
1262 operands[1] = GEN_INT (- 0x10);
1263 operands[2] = GEN_INT (val + 0x10);
1268 [(set (match_operand:DI 0 "d_operand")
1269 (plus:DI (match_operand:DI 1 "d_operand")
1270 (match_operand:DI 2 "const_int_operand")))]
1271 "TARGET_MIPS16 && TARGET_64BIT && reload_completed && !TARGET_DEBUG_D_MODE
1272 && REGNO (operands[0]) != REGNO (operands[1])
1273 && ((INTVAL (operands[2]) > 0x7
1274 && INTVAL (operands[2]) <= 0x7 + 0xf)
1275 || (INTVAL (operands[2]) < - 0x8
1276 && INTVAL (operands[2]) >= - 0x8 - 0x10))"
1277 [(set (match_dup 0) (plus:DI (match_dup 1) (match_dup 2)))
1278 (set (match_dup 0) (plus:DI (match_dup 0) (match_dup 3)))]
1280 HOST_WIDE_INT val = INTVAL (operands[2]);
1284 operands[2] = GEN_INT (0x7);
1285 operands[3] = GEN_INT (val - 0x7);
1289 operands[2] = GEN_INT (- 0x8);
1290 operands[3] = GEN_INT (val + 0x8);
1294 (define_insn "*addsi3_extended"
1295 [(set (match_operand:DI 0 "register_operand" "=d,d")
1297 (plus:SI (match_operand:SI 1 "register_operand" "d,d")
1298 (match_operand:SI 2 "arith_operand" "d,Q"))))]
1299 "TARGET_64BIT && !TARGET_MIPS16"
1303 [(set_attr "alu_type" "add")
1304 (set_attr "mode" "SI")])
1306 ;; Split this insn so that the addiu splitters can have a crack at it.
1307 ;; Use a conservative length estimate until the split.
1308 (define_insn_and_split "*addsi3_extended_mips16"
1309 [(set (match_operand:DI 0 "register_operand" "=d,d,d")
1311 (plus:SI (match_operand:SI 1 "register_operand" "0,d,d")
1312 (match_operand:SI 2 "arith_operand" "Q,O,d"))))]
1313 "TARGET_64BIT && TARGET_MIPS16"
1315 "&& reload_completed"
1316 [(set (match_dup 3) (plus:SI (match_dup 1) (match_dup 2)))]
1317 { operands[3] = gen_lowpart (SImode, operands[0]); }
1318 [(set_attr "alu_type" "add")
1319 (set_attr "mode" "SI")
1320 (set_attr "extended_mips16" "yes")])
1322 ;; Combiner patterns for unsigned byte-add.
1324 (define_insn "*baddu_si"
1325 [(set (match_operand:SI 0 "register_operand" "=d")
1327 (plus:QI (match_operand:QI 1 "register_operand" "d")
1328 (match_operand:QI 2 "register_operand" "d"))))]
1331 [(set_attr "alu_type" "add")])
1333 (define_insn "*baddu_di<mode>"
1334 [(set (match_operand:GPR 0 "register_operand" "=d")
1336 (plus:QI (truncate:QI (match_operand:DI 1 "register_operand" "d"))
1337 (truncate:QI (match_operand:DI 2 "register_operand" "d")))))]
1338 "ISA_HAS_BADDU && TARGET_64BIT"
1340 [(set_attr "alu_type" "add")])
1343 ;; ....................
1347 ;; ....................
1350 (define_insn "sub<mode>3"
1351 [(set (match_operand:ANYF 0 "register_operand" "=f")
1352 (minus:ANYF (match_operand:ANYF 1 "register_operand" "f")
1353 (match_operand:ANYF 2 "register_operand" "f")))]
1355 "sub.<fmt>\t%0,%1,%2"
1356 [(set_attr "type" "fadd")
1357 (set_attr "mode" "<UNITMODE>")])
1359 (define_insn "sub<mode>3"
1360 [(set (match_operand:GPR 0 "register_operand" "=!u,d")
1361 (minus:GPR (match_operand:GPR 1 "register_operand" "!u,d")
1362 (match_operand:GPR 2 "register_operand" "!u,d")))]
1365 [(set_attr "alu_type" "sub")
1366 (set_attr "compression" "micromips,*")
1367 (set_attr "mode" "<MODE>")])
1369 (define_insn "*subsi3_extended"
1370 [(set (match_operand:DI 0 "register_operand" "=d")
1372 (minus:SI (match_operand:SI 1 "register_operand" "d")
1373 (match_operand:SI 2 "register_operand" "d"))))]
1376 [(set_attr "alu_type" "sub")
1377 (set_attr "mode" "DI")])
1380 ;; ....................
1384 ;; ....................
1387 (define_expand "mul<mode>3"
1388 [(set (match_operand:SCALARF 0 "register_operand")
1389 (mult:SCALARF (match_operand:SCALARF 1 "register_operand")
1390 (match_operand:SCALARF 2 "register_operand")))]
1394 (define_insn "*mul<mode>3"
1395 [(set (match_operand:SCALARF 0 "register_operand" "=f")
1396 (mult:SCALARF (match_operand:SCALARF 1 "register_operand" "f")
1397 (match_operand:SCALARF 2 "register_operand" "f")))]
1398 "!TARGET_4300_MUL_FIX"
1399 "mul.<fmt>\t%0,%1,%2"
1400 [(set_attr "type" "fmul")
1401 (set_attr "mode" "<MODE>")])
1403 ;; Early VR4300 silicon has a CPU bug where multiplies with certain
1404 ;; operands may corrupt immediately following multiplies. This is a
1405 ;; simple fix to insert NOPs.
1407 (define_insn "*mul<mode>3_r4300"
1408 [(set (match_operand:SCALARF 0 "register_operand" "=f")
1409 (mult:SCALARF (match_operand:SCALARF 1 "register_operand" "f")
1410 (match_operand:SCALARF 2 "register_operand" "f")))]
1411 "TARGET_4300_MUL_FIX"
1412 "mul.<fmt>\t%0,%1,%2\;nop"
1413 [(set_attr "type" "fmul")
1414 (set_attr "mode" "<MODE>")
1415 (set_attr "insn_count" "2")])
1417 (define_insn "mulv2sf3"
1418 [(set (match_operand:V2SF 0 "register_operand" "=f")
1419 (mult:V2SF (match_operand:V2SF 1 "register_operand" "f")
1420 (match_operand:V2SF 2 "register_operand" "f")))]
1421 "TARGET_HARD_FLOAT && TARGET_PAIRED_SINGLE_FLOAT"
1423 [(set_attr "type" "fmul")
1424 (set_attr "mode" "SF")])
1426 ;; The original R4000 has a cpu bug. If a double-word or a variable
1427 ;; shift executes while an integer multiplication is in progress, the
1428 ;; shift may give an incorrect result. Avoid this by keeping the mflo
1429 ;; with the mult on the R4000.
1431 ;; From "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0"
1432 ;; (also valid for MIPS R4000MC processors):
1434 ;; "16. R4000PC, R4000SC: Please refer to errata 28 for an update to
1435 ;; this errata description.
1436 ;; The following code sequence causes the R4000 to incorrectly
1437 ;; execute the Double Shift Right Arithmetic 32 (dsra32)
1438 ;; instruction. If the dsra32 instruction is executed during an
1439 ;; integer multiply, the dsra32 will only shift by the amount in
1440 ;; specified in the instruction rather than the amount plus 32
1442 ;; instruction 1: mult rs,rt integer multiply
1443 ;; instruction 2-12: dsra32 rd,rt,rs doubleword shift
1444 ;; right arithmetic + 32
1445 ;; Workaround: A dsra32 instruction placed after an integer
1446 ;; multiply should not be one of the 11 instructions after the
1447 ;; multiply instruction."
1451 ;; "28. R4000PC, R4000SC: The text from errata 16 should be replaced by
1452 ;; the following description.
1453 ;; All extended shifts (shift by n+32) and variable shifts (32 and
1454 ;; 64-bit versions) may produce incorrect results under the
1455 ;; following conditions:
1456 ;; 1) An integer multiply is currently executing
1457 ;; 2) These types of shift instructions are executed immediately
1458 ;; following an integer divide instruction.
1460 ;; 1) Make sure no integer multiply is running wihen these
1461 ;; instruction are executed. If this cannot be predicted at
1462 ;; compile time, then insert a "mfhi" to R0 instruction
1463 ;; immediately after the integer multiply instruction. This
1464 ;; will cause the integer multiply to complete before the shift
1466 ;; 2) Separate integer divide and these two classes of shift
1467 ;; instructions by another instruction or a noop."
1469 ;; These processors have PRId values of 0x00004220 and 0x00004300,
1472 (define_expand "mul<mode>3"
1473 [(set (match_operand:GPR 0 "register_operand")
1474 (mult:GPR (match_operand:GPR 1 "register_operand")
1475 (match_operand:GPR 2 "register_operand")))]
1480 if (TARGET_LOONGSON_2EF || TARGET_LOONGSON_3A)
1481 emit_insn (gen_mul<mode>3_mul3_loongson (operands[0], operands[1],
1483 else if (ISA_HAS_<D>MUL3)
1484 emit_insn (gen_mul<mode>3_mul3 (operands[0], operands[1], operands[2]));
1485 else if (TARGET_MIPS16)
1487 lo = gen_rtx_REG (<MODE>mode, LO_REGNUM);
1488 emit_insn (gen_mul<mode>3_internal (lo, operands[1], operands[2]));
1489 emit_move_insn (operands[0], lo);
1491 else if (TARGET_FIX_R4000)
1492 emit_insn (gen_mul<mode>3_r4000 (operands[0], operands[1], operands[2]));
1495 (gen_mul<mode>3_internal (operands[0], operands[1], operands[2]));
1499 (define_insn "mul<mode>3_mul3_loongson"
1500 [(set (match_operand:GPR 0 "register_operand" "=d")
1501 (mult:GPR (match_operand:GPR 1 "register_operand" "d")
1502 (match_operand:GPR 2 "register_operand" "d")))]
1503 "TARGET_LOONGSON_2EF || TARGET_LOONGSON_3A"
1505 if (TARGET_LOONGSON_2EF)
1506 return "<d>multu.g\t%0,%1,%2";
1508 return "gs<d>multu\t%0,%1,%2";
1510 [(set_attr "type" "imul3nc")
1511 (set_attr "mode" "<MODE>")])
1513 (define_insn "mul<mode>3_mul3"
1514 [(set (match_operand:GPR 0 "register_operand" "=d,l")
1515 (mult:GPR (match_operand:GPR 1 "register_operand" "d,d")
1516 (match_operand:GPR 2 "register_operand" "d,d")))
1517 (clobber (match_scratch:GPR 3 "=l,X"))]
1520 if (which_alternative == 1)
1521 return "<d>mult\t%1,%2";
1522 if (<MODE>mode == SImode && (TARGET_MIPS3900 || TARGET_MIPS5900))
1523 return "mult\t%0,%1,%2";
1524 return "<d>mul\t%0,%1,%2";
1526 [(set_attr "type" "imul3,imul")
1527 (set_attr "mode" "<MODE>")])
1529 ;; If a register gets allocated to LO, and we spill to memory, the reload
1530 ;; will include a move from LO to a GPR. Merge it into the multiplication
1531 ;; if it can set the GPR directly.
1534 ;; Operand 1: GPR (1st multiplication operand)
1535 ;; Operand 2: GPR (2nd multiplication operand)
1536 ;; Operand 3: GPR (destination)
1539 [(set (match_operand:SI 0 "lo_operand")
1540 (mult:SI (match_operand:SI 1 "d_operand")
1541 (match_operand:SI 2 "d_operand")))
1542 (clobber (scratch:SI))])
1543 (set (match_operand:SI 3 "d_operand")
1545 "ISA_HAS_MUL3 && peep2_reg_dead_p (2, operands[0])"
1548 (mult:SI (match_dup 1)
1550 (clobber (match_dup 0))])])
1552 (define_insn "mul<mode>3_internal"
1553 [(set (match_operand:GPR 0 "muldiv_target_operand" "=l")
1554 (mult:GPR (match_operand:GPR 1 "register_operand" "d")
1555 (match_operand:GPR 2 "register_operand" "d")))]
1556 "ISA_HAS_<D>MULT && !TARGET_FIX_R4000"
1558 [(set_attr "type" "imul")
1559 (set_attr "mode" "<MODE>")])
1561 (define_insn "mul<mode>3_r4000"
1562 [(set (match_operand:GPR 0 "register_operand" "=d")
1563 (mult:GPR (match_operand:GPR 1 "register_operand" "d")
1564 (match_operand:GPR 2 "register_operand" "d")))
1565 (clobber (match_scratch:GPR 3 "=l"))]
1566 "ISA_HAS_<D>MULT && TARGET_FIX_R4000"
1567 "<d>mult\t%1,%2\;mflo\t%0"
1568 [(set_attr "type" "imul")
1569 (set_attr "mode" "<MODE>")
1570 (set_attr "insn_count" "2")])
1572 ;; On the VR4120 and VR4130, it is better to use "mtlo $0; macc" instead
1573 ;; of "mult; mflo". They have the same latency, but the first form gives
1574 ;; us an extra cycle to compute the operands.
1577 ;; Operand 1: GPR (1st multiplication operand)
1578 ;; Operand 2: GPR (2nd multiplication operand)
1579 ;; Operand 3: GPR (destination)
1581 [(set (match_operand:SI 0 "lo_operand")
1582 (mult:SI (match_operand:SI 1 "d_operand")
1583 (match_operand:SI 2 "d_operand")))
1584 (set (match_operand:SI 3 "d_operand")
1586 "ISA_HAS_MACC && !ISA_HAS_MUL3"
1591 (plus:SI (mult:SI (match_dup 1)
1595 (plus:SI (mult:SI (match_dup 1)
1599 ;; Multiply-accumulate patterns
1601 ;; This pattern is first matched by combine, which tries to use the
1602 ;; pattern wherever it can. We don't know until later whether it
1603 ;; is actually profitable to use MADD over a "MUL; ADDIU" sequence,
1604 ;; so we need to keep both options open.
1606 ;; The second alternative has a "?" marker because it is generally
1607 ;; one instruction more costly than the first alternative. This "?"
1608 ;; marker is enough to convey the relative costs to the register
1611 ;; However, reload counts reloads of operands 4 and 5 in the same way as
1612 ;; reloads of the other operands, even though operands 4 and 5 need no
1613 ;; copy instructions. Reload therefore thinks that the second alternative
1614 ;; is two reloads more costly than the first. We add "*?*?" to the first
1615 ;; alternative as a counterweight.
1616 (define_insn "*mul_acc_si"
1617 [(set (match_operand:SI 0 "register_operand" "=l*?*?,d?")
1618 (plus:SI (mult:SI (match_operand:SI 1 "register_operand" "d,d")
1619 (match_operand:SI 2 "register_operand" "d,d"))
1620 (match_operand:SI 3 "register_operand" "0,d")))
1621 (clobber (match_scratch:SI 4 "=X,l"))
1622 (clobber (match_scratch:SI 5 "=X,&d"))]
1623 "GENERATE_MADD_MSUB && !TARGET_MIPS16"
1627 [(set_attr "type" "imadd")
1628 (set_attr "accum_in" "3")
1629 (set_attr "mode" "SI")
1630 (set_attr "insn_count" "1,2")])
1632 ;; The same idea applies here. The middle alternative needs one less
1633 ;; clobber than the final alternative, so we add "*?" as a counterweight.
1634 (define_insn "*mul_acc_si_r3900"
1635 [(set (match_operand:SI 0 "register_operand" "=l*?*?,d*?,d?")
1636 (plus:SI (mult:SI (match_operand:SI 1 "register_operand" "d,d,d")
1637 (match_operand:SI 2 "register_operand" "d,d,d"))
1638 (match_operand:SI 3 "register_operand" "0,l,d")))
1639 (clobber (match_scratch:SI 4 "=X,3,l"))
1640 (clobber (match_scratch:SI 5 "=X,X,&d"))]
1641 "TARGET_MIPS3900 && !TARGET_MIPS16"
1646 [(set_attr "type" "imadd")
1647 (set_attr "accum_in" "3")
1648 (set_attr "mode" "SI")
1649 (set_attr "insn_count" "1,1,2")])
1651 ;; Split *mul_acc_si if both the source and destination accumulator
1654 [(set (match_operand:SI 0 "d_operand")
1655 (plus:SI (mult:SI (match_operand:SI 1 "d_operand")
1656 (match_operand:SI 2 "d_operand"))
1657 (match_operand:SI 3 "d_operand")))
1658 (clobber (match_operand:SI 4 "lo_operand"))
1659 (clobber (match_operand:SI 5 "d_operand"))]
1661 [(parallel [(set (match_dup 5)
1662 (mult:SI (match_dup 1) (match_dup 2)))
1663 (clobber (match_dup 4))])
1664 (set (match_dup 0) (plus:SI (match_dup 5) (match_dup 3)))]
1667 (define_insn "*macc"
1668 [(set (match_operand:SI 0 "register_operand" "=l,d")
1669 (plus:SI (mult:SI (match_operand:SI 1 "register_operand" "d,d")
1670 (match_operand:SI 2 "register_operand" "d,d"))
1671 (match_operand:SI 3 "register_operand" "0,l")))
1672 (clobber (match_scratch:SI 4 "=X,3"))]
1675 if (which_alternative == 1)
1676 return "macc\t%0,%1,%2";
1677 else if (TARGET_MIPS5500)
1678 return "madd\t%1,%2";
1680 /* The VR4130 assumes that there is a two-cycle latency between a macc
1681 that "writes" to $0 and an instruction that reads from it. We avoid
1682 this by assigning to $1 instead. */
1683 return "%[macc\t%@,%1,%2%]";
1685 [(set_attr "type" "imadd")
1686 (set_attr "accum_in" "3")
1687 (set_attr "mode" "SI")])
1689 (define_insn "*msac"
1690 [(set (match_operand:SI 0 "register_operand" "=l,d")
1691 (minus:SI (match_operand:SI 1 "register_operand" "0,l")
1692 (mult:SI (match_operand:SI 2 "register_operand" "d,d")
1693 (match_operand:SI 3 "register_operand" "d,d"))))
1694 (clobber (match_scratch:SI 4 "=X,1"))]
1697 if (which_alternative == 1)
1698 return "msac\t%0,%2,%3";
1699 else if (TARGET_MIPS5500)
1700 return "msub\t%2,%3";
1702 return "msac\t$0,%2,%3";
1704 [(set_attr "type" "imadd")
1705 (set_attr "accum_in" "1")
1706 (set_attr "mode" "SI")])
1708 ;; An msac-like instruction implemented using negation and a macc.
1709 (define_insn_and_split "*msac_using_macc"
1710 [(set (match_operand:SI 0 "register_operand" "=l,d")
1711 (minus:SI (match_operand:SI 1 "register_operand" "0,l")
1712 (mult:SI (match_operand:SI 2 "register_operand" "d,d")
1713 (match_operand:SI 3 "register_operand" "d,d"))))
1714 (clobber (match_scratch:SI 4 "=X,1"))
1715 (clobber (match_scratch:SI 5 "=d,d"))]
1716 "ISA_HAS_MACC && !ISA_HAS_MSAC"
1718 "&& reload_completed"
1720 (neg:SI (match_dup 3)))
1723 (plus:SI (mult:SI (match_dup 2)
1726 (clobber (match_dup 4))])]
1728 [(set_attr "type" "imadd")
1729 (set_attr "accum_in" "1")
1730 (set_attr "insn_count" "2")])
1732 ;; Patterns generated by the define_peephole2 below.
1734 (define_insn "*macc2"
1735 [(set (match_operand:SI 0 "muldiv_target_operand" "=l")
1736 (plus:SI (mult:SI (match_operand:SI 1 "register_operand" "d")
1737 (match_operand:SI 2 "register_operand" "d"))
1739 (set (match_operand:SI 3 "register_operand" "=d")
1740 (plus:SI (mult:SI (match_dup 1)
1743 "ISA_HAS_MACC && reload_completed"
1745 [(set_attr "type" "imadd")
1746 (set_attr "accum_in" "0")
1747 (set_attr "mode" "SI")])
1749 (define_insn "*msac2"
1750 [(set (match_operand:SI 0 "muldiv_target_operand" "=l")
1751 (minus:SI (match_dup 0)
1752 (mult:SI (match_operand:SI 1 "register_operand" "d")
1753 (match_operand:SI 2 "register_operand" "d"))))
1754 (set (match_operand:SI 3 "register_operand" "=d")
1755 (minus:SI (match_dup 0)
1756 (mult:SI (match_dup 1)
1758 "ISA_HAS_MSAC && reload_completed"
1760 [(set_attr "type" "imadd")
1761 (set_attr "accum_in" "0")
1762 (set_attr "mode" "SI")])
1764 ;; Convert macc $0,<r1>,<r2> & mflo <r3> into macc <r3>,<r1>,<r2>
1768 ;; Operand 1: macc/msac
1769 ;; Operand 2: GPR (destination)
1772 [(set (match_operand:SI 0 "lo_operand")
1773 (match_operand:SI 1 "macc_msac_operand"))
1774 (clobber (scratch:SI))])
1775 (set (match_operand:SI 2 "d_operand")
1778 [(parallel [(set (match_dup 0)
1783 ;; When we have a three-address multiplication instruction, it should
1784 ;; be faster to do a separate multiply and add, rather than moving
1785 ;; something into LO in order to use a macc instruction.
1787 ;; This peephole needs a scratch register to cater for the case when one
1788 ;; of the multiplication operands is the same as the destination.
1790 ;; Operand 0: GPR (scratch)
1792 ;; Operand 2: GPR (addend)
1793 ;; Operand 3: GPR (destination)
1794 ;; Operand 4: macc/msac
1795 ;; Operand 5: new multiplication
1796 ;; Operand 6: new addition/subtraction
1798 [(match_scratch:SI 0 "d")
1799 (set (match_operand:SI 1 "lo_operand")
1800 (match_operand:SI 2 "d_operand"))
1803 [(set (match_operand:SI 3 "d_operand")
1804 (match_operand:SI 4 "macc_msac_operand"))
1805 (clobber (match_dup 1))])]
1806 "ISA_HAS_MUL3 && peep2_reg_dead_p (2, operands[1])"
1807 [(parallel [(set (match_dup 0)
1809 (clobber (match_dup 1))])
1813 operands[5] = XEXP (operands[4], GET_CODE (operands[4]) == PLUS ? 0 : 1);
1814 operands[6] = gen_rtx_fmt_ee (GET_CODE (operands[4]), SImode,
1815 operands[2], operands[0]);
1818 ;; Same as above, except LO is the initial target of the macc.
1820 ;; Operand 0: GPR (scratch)
1822 ;; Operand 2: GPR (addend)
1823 ;; Operand 3: macc/msac
1824 ;; Operand 4: GPR (destination)
1825 ;; Operand 5: new multiplication
1826 ;; Operand 6: new addition/subtraction
1828 [(match_scratch:SI 0 "d")
1829 (set (match_operand:SI 1 "lo_operand")
1830 (match_operand:SI 2 "d_operand"))
1834 (match_operand:SI 3 "macc_msac_operand"))
1835 (clobber (scratch:SI))])
1837 (set (match_operand:SI 4 "d_operand")
1839 "ISA_HAS_MUL3 && peep2_reg_dead_p (3, operands[1])"
1840 [(parallel [(set (match_dup 0)
1842 (clobber (match_dup 1))])
1846 operands[5] = XEXP (operands[3], GET_CODE (operands[3]) == PLUS ? 0 : 1);
1847 operands[6] = gen_rtx_fmt_ee (GET_CODE (operands[3]), SImode,
1848 operands[2], operands[0]);
1851 ;; See the comment above *mul_add_si for details.
1852 (define_insn "*mul_sub_si"
1853 [(set (match_operand:SI 0 "register_operand" "=l*?*?,d?")
1854 (minus:SI (match_operand:SI 1 "register_operand" "0,d")
1855 (mult:SI (match_operand:SI 2 "register_operand" "d,d")
1856 (match_operand:SI 3 "register_operand" "d,d"))))
1857 (clobber (match_scratch:SI 4 "=X,l"))
1858 (clobber (match_scratch:SI 5 "=X,&d"))]
1859 "GENERATE_MADD_MSUB"
1863 [(set_attr "type" "imadd")
1864 (set_attr "accum_in" "1")
1865 (set_attr "mode" "SI")
1866 (set_attr "insn_count" "1,2")])
1868 ;; Split *mul_sub_si if both the source and destination accumulator
1871 [(set (match_operand:SI 0 "d_operand")
1872 (minus:SI (match_operand:SI 1 "d_operand")
1873 (mult:SI (match_operand:SI 2 "d_operand")
1874 (match_operand:SI 3 "d_operand"))))
1875 (clobber (match_operand:SI 4 "lo_operand"))
1876 (clobber (match_operand:SI 5 "d_operand"))]
1878 [(parallel [(set (match_dup 5)
1879 (mult:SI (match_dup 2) (match_dup 3)))
1880 (clobber (match_dup 4))])
1881 (set (match_dup 0) (minus:SI (match_dup 1) (match_dup 5)))]
1884 (define_insn "*muls"
1885 [(set (match_operand:SI 0 "register_operand" "=l,d")
1886 (neg:SI (mult:SI (match_operand:SI 1 "register_operand" "d,d")
1887 (match_operand:SI 2 "register_operand" "d,d"))))
1888 (clobber (match_scratch:SI 3 "=X,l"))]
1893 [(set_attr "type" "imul,imul3")
1894 (set_attr "mode" "SI")])
1896 (define_expand "<u>mulsidi3"
1897 [(set (match_operand:DI 0 "register_operand")
1898 (mult:DI (any_extend:DI (match_operand:SI 1 "register_operand"))
1899 (any_extend:DI (match_operand:SI 2 "register_operand"))))]
1900 "mips_mulsidi3_gen_fn (<CODE>) != NULL"
1902 mulsidi3_gen_fn fn = mips_mulsidi3_gen_fn (<CODE>);
1903 emit_insn (fn (operands[0], operands[1], operands[2]));
1907 (define_expand "<u>mulsidi3_32bit_mips16"
1908 [(set (match_operand:DI 0 "register_operand")
1909 (mult:DI (any_extend:DI (match_operand:SI 1 "register_operand"))
1910 (any_extend:DI (match_operand:SI 2 "register_operand"))))]
1911 "!TARGET_64BIT && TARGET_MIPS16"
1915 hilo = gen_rtx_REG (DImode, MD_REG_FIRST);
1916 emit_insn (gen_<u>mulsidi3_32bit (hilo, operands[1], operands[2]));
1917 emit_move_insn (operands[0], hilo);
1921 ;; As well as being named patterns, these instructions are used by the
1922 ;; __builtin_mips_mult<u>() functions. We must always make those functions
1923 ;; available if !TARGET_64BIT && ISA_HAS_DSP.
1924 (define_insn "<u>mulsidi3_32bit"
1925 [(set (match_operand:DI 0 "muldiv_target_operand" "=ka")
1926 (mult:DI (any_extend:DI (match_operand:SI 1 "register_operand" "d"))
1927 (any_extend:DI (match_operand:SI 2 "register_operand" "d"))))]
1928 "!TARGET_64BIT && (!TARGET_FIX_R4000 || ISA_HAS_DSP)"
1930 if (ISA_HAS_DSP_MULT)
1931 return "mult<u>\t%q0,%1,%2";
1933 return "mult<u>\t%1,%2";
1935 [(set_attr "type" "imul")
1936 (set_attr "mode" "SI")])
1938 (define_insn "<u>mulsidi3_32bit_r4000"
1939 [(set (match_operand:DI 0 "register_operand" "=d")
1940 (mult:DI (any_extend:DI (match_operand:SI 1 "register_operand" "d"))
1941 (any_extend:DI (match_operand:SI 2 "register_operand" "d"))))
1942 (clobber (match_scratch:DI 3 "=x"))]
1943 "!TARGET_64BIT && TARGET_FIX_R4000 && !ISA_HAS_DSP"
1944 "mult<u>\t%1,%2\;mflo\t%L0\;mfhi\t%M0"
1945 [(set_attr "type" "imul")
1946 (set_attr "mode" "SI")
1947 (set_attr "insn_count" "3")])
1949 (define_insn_and_split "<u>mulsidi3_64bit"
1950 [(set (match_operand:DI 0 "register_operand" "=d")
1951 (mult:DI (any_extend:DI (match_operand:SI 1 "register_operand" "d"))
1952 (any_extend:DI (match_operand:SI 2 "register_operand" "d"))))
1953 (clobber (match_scratch:TI 3 "=x"))
1954 (clobber (match_scratch:DI 4 "=d"))]
1955 "TARGET_64BIT && !TARGET_FIX_R4000 && !ISA_HAS_DMUL3 && !TARGET_MIPS16"
1957 "&& reload_completed"
1960 emit_insn (gen_<u>mulsidi3_64bit_split (operands[0], operands[1],
1961 operands[2], operands[4]));
1964 [(set_attr "type" "imul")
1965 (set_attr "mode" "SI")
1966 (set (attr "insn_count")
1967 (if_then_else (match_test "ISA_HAS_EXT_INS")
1971 (define_expand "<u>mulsidi3_64bit_mips16"
1972 [(set (match_operand:DI 0 "register_operand")
1973 (mult:DI (any_extend:DI (match_operand:SI 1 "register_operand"))
1974 (any_extend:DI (match_operand:SI 2 "register_operand"))))]
1975 "TARGET_64BIT && TARGET_MIPS16"
1977 emit_insn (gen_<u>mulsidi3_64bit_split (operands[0], operands[1],
1978 operands[2], gen_reg_rtx (DImode)));
1982 (define_expand "<u>mulsidi3_64bit_split"
1983 [(set (match_operand:DI 0 "register_operand")
1984 (mult:DI (any_extend:DI (match_operand:SI 1 "register_operand"))
1985 (any_extend:DI (match_operand:SI 2 "register_operand"))))
1986 (clobber (match_operand:DI 3 "register_operand"))]
1991 hilo = gen_rtx_REG (TImode, MD_REG_FIRST);
1992 emit_insn (gen_<u>mulsidi3_64bit_hilo (hilo, operands[1], operands[2]));
1994 emit_move_insn (operands[0], gen_rtx_REG (DImode, LO_REGNUM));
1995 emit_insn (gen_mfhidi_ti (operands[3], hilo));
1997 if (ISA_HAS_EXT_INS)
1998 emit_insn (gen_insvdi (operands[0], GEN_INT (32), GEN_INT (32),
2002 /* Zero-extend the low part. */
2003 mips_emit_binary (ASHIFT, operands[0], operands[0], GEN_INT (32));
2004 mips_emit_binary (LSHIFTRT, operands[0], operands[0], GEN_INT (32));
2006 /* Shift the high part into place. */
2007 mips_emit_binary (ASHIFT, operands[3], operands[3], GEN_INT (32));
2009 /* OR the two halves together. */
2010 mips_emit_binary (IOR, operands[0], operands[0], operands[3]);
2015 (define_insn "<u>mulsidi3_64bit_hilo"
2016 [(set (match_operand:TI 0 "muldiv_target_operand" "=x")
2019 (any_extend:DI (match_operand:SI 1 "register_operand" "d"))
2020 (any_extend:DI (match_operand:SI 2 "register_operand" "d")))]
2022 "TARGET_64BIT && !TARGET_FIX_R4000"
2024 [(set_attr "type" "imul")
2025 (set_attr "mode" "SI")])
2027 ;; See comment before the ISA_HAS_DMUL3 case in mips_mulsidi3_gen_fn.
2028 (define_insn "mulsidi3_64bit_dmul"
2029 [(set (match_operand:DI 0 "register_operand" "=d")
2030 (mult:DI (sign_extend:DI (match_operand:SI 1 "register_operand" "d"))
2031 (sign_extend:DI (match_operand:SI 2 "register_operand" "d"))))
2032 (clobber (match_scratch:DI 3 "=l"))]
2035 [(set_attr "type" "imul3")
2036 (set_attr "mode" "DI")])
2038 ;; Widening multiply with negation.
2039 (define_insn "*muls<u>_di"
2040 [(set (match_operand:DI 0 "muldiv_target_operand" "=x")
2043 (any_extend:DI (match_operand:SI 1 "register_operand" "d"))
2044 (any_extend:DI (match_operand:SI 2 "register_operand" "d")))))]
2045 "!TARGET_64BIT && ISA_HAS_MULS"
2047 [(set_attr "type" "imul")
2048 (set_attr "mode" "SI")])
2050 ;; As well as being named patterns, these instructions are used by the
2051 ;; __builtin_mips_msub<u>() functions. We must always make those functions
2052 ;; available if !TARGET_64BIT && ISA_HAS_DSP.
2054 ;; This leads to a slight inconsistency. We honor any tuning overrides
2055 ;; in GENERATE_MADD_MSUB for -mno-dsp, but always ignore them for -mdsp,
2056 ;; even if !ISA_HAS_DSP_MULT.
2057 (define_insn "<u>msubsidi4"
2058 [(set (match_operand:DI 0 "muldiv_target_operand" "=ka")
2060 (match_operand:DI 3 "muldiv_target_operand" "0")
2062 (any_extend:DI (match_operand:SI 1 "register_operand" "d"))
2063 (any_extend:DI (match_operand:SI 2 "register_operand" "d")))))]
2064 "!TARGET_64BIT && (ISA_HAS_MSAC || GENERATE_MADD_MSUB || ISA_HAS_DSP)"
2066 if (ISA_HAS_DSP_MULT)
2067 return "msub<u>\t%q0,%1,%2";
2068 else if (TARGET_MIPS5500 || GENERATE_MADD_MSUB)
2069 return "msub<u>\t%1,%2";
2071 return "msac<u>\t$0,%1,%2";
2073 [(set_attr "type" "imadd")
2074 (set_attr "accum_in" "3")
2075 (set_attr "mode" "SI")])
2077 ;; _highpart patterns
2079 (define_expand "<su>mulsi3_highpart"
2080 [(set (match_operand:SI 0 "register_operand")
2083 (mult:DI (any_extend:DI (match_operand:SI 1 "register_operand"))
2084 (any_extend:DI (match_operand:SI 2 "register_operand")))
2089 emit_insn (gen_<su>mulsi3_highpart_mulhi_internal (operands[0],
2092 else if (TARGET_MIPS16)
2093 emit_insn (gen_<su>mulsi3_highpart_split (operands[0], operands[1],
2096 emit_insn (gen_<su>mulsi3_highpart_internal (operands[0], operands[1],
2101 (define_insn_and_split "<su>mulsi3_highpart_internal"
2102 [(set (match_operand:SI 0 "register_operand" "=d")
2105 (mult:DI (any_extend:DI (match_operand:SI 1 "register_operand" "d"))
2106 (any_extend:DI (match_operand:SI 2 "register_operand" "d")))
2108 (clobber (match_scratch:SI 3 "=l"))]
2109 "!ISA_HAS_MULHI && !TARGET_MIPS16"
2110 { return TARGET_FIX_R4000 ? "mult<u>\t%1,%2\n\tmfhi\t%0" : "#"; }
2111 "&& reload_completed && !TARGET_FIX_R4000"
2114 emit_insn (gen_<su>mulsi3_highpart_split (operands[0], operands[1],
2118 [(set_attr "type" "imul")
2119 (set_attr "mode" "SI")
2120 (set_attr "insn_count" "2")])
2122 (define_expand "<su>mulsi3_highpart_split"
2123 [(set (match_operand:SI 0 "register_operand")
2126 (mult:DI (any_extend:DI (match_operand:SI 1 "register_operand"))
2127 (any_extend:DI (match_operand:SI 2 "register_operand")))
2135 hilo = gen_rtx_REG (TImode, MD_REG_FIRST);
2136 emit_insn (gen_<u>mulsidi3_64bit_hilo (hilo, operands[1], operands[2]));
2137 emit_insn (gen_mfhisi_ti (operands[0], hilo));
2141 hilo = gen_rtx_REG (DImode, MD_REG_FIRST);
2142 emit_insn (gen_<u>mulsidi3_32bit (hilo, operands[1], operands[2]));
2143 emit_insn (gen_mfhisi_di (operands[0], hilo));
2148 (define_insn "<su>mulsi3_highpart_mulhi_internal"
2149 [(set (match_operand:SI 0 "register_operand" "=d")
2153 (any_extend:DI (match_operand:SI 1 "register_operand" "d"))
2154 (any_extend:DI (match_operand:SI 2 "register_operand" "d")))
2156 (clobber (match_scratch:SI 3 "=l"))]
2158 "mulhi<u>\t%0,%1,%2"
2159 [(set_attr "type" "imul3")
2160 (set_attr "mode" "SI")])
2162 (define_insn "*<su>mulsi3_highpart_neg_mulhi_internal"
2163 [(set (match_operand:SI 0 "register_operand" "=d")
2168 (any_extend:DI (match_operand:SI 1 "register_operand" "d"))
2169 (any_extend:DI (match_operand:SI 2 "register_operand" "d"))))
2171 (clobber (match_scratch:SI 3 "=l"))]
2173 "mulshi<u>\t%0,%1,%2"
2174 [(set_attr "type" "imul3")
2175 (set_attr "mode" "SI")])
2177 ;; Disable unsigned multiplication for -mfix-vr4120. This is for VR4120
2178 ;; errata MD(0), which says that dmultu does not always produce the
2180 (define_expand "<su>muldi3_highpart"
2181 [(set (match_operand:DI 0 "register_operand")
2184 (mult:TI (any_extend:TI (match_operand:DI 1 "register_operand"))
2185 (any_extend:TI (match_operand:DI 2 "register_operand")))
2187 "ISA_HAS_DMULT && !(<CODE> == ZERO_EXTEND && TARGET_FIX_VR4120)"
2190 emit_insn (gen_<su>muldi3_highpart_split (operands[0], operands[1],
2193 emit_insn (gen_<su>muldi3_highpart_internal (operands[0], operands[1],
2198 (define_insn_and_split "<su>muldi3_highpart_internal"
2199 [(set (match_operand:DI 0 "register_operand" "=d")
2202 (mult:TI (any_extend:TI (match_operand:DI 1 "register_operand" "d"))
2203 (any_extend:TI (match_operand:DI 2 "register_operand" "d")))
2205 (clobber (match_scratch:DI 3 "=l"))]
2208 && !(<CODE> == ZERO_EXTEND && TARGET_FIX_VR4120)"
2209 { return TARGET_FIX_R4000 ? "dmult<u>\t%1,%2\n\tmfhi\t%0" : "#"; }
2210 "&& reload_completed && !TARGET_FIX_R4000"
2213 emit_insn (gen_<su>muldi3_highpart_split (operands[0], operands[1],
2217 [(set_attr "type" "imul")
2218 (set_attr "mode" "DI")
2219 (set_attr "insn_count" "2")])
2221 (define_expand "<su>muldi3_highpart_split"
2222 [(set (match_operand:DI 0 "register_operand")
2225 (mult:TI (any_extend:TI (match_operand:DI 1 "register_operand"))
2226 (any_extend:TI (match_operand:DI 2 "register_operand")))
2232 hilo = gen_rtx_REG (TImode, MD_REG_FIRST);
2233 emit_insn (gen_<u>mulditi3_internal (hilo, operands[1], operands[2]));
2234 emit_insn (gen_mfhidi_ti (operands[0], hilo));
2238 (define_expand "<u>mulditi3"
2239 [(set (match_operand:TI 0 "register_operand")
2240 (mult:TI (any_extend:TI (match_operand:DI 1 "register_operand"))
2241 (any_extend:TI (match_operand:DI 2 "register_operand"))))]
2242 "ISA_HAS_DMULT && !(<CODE> == ZERO_EXTEND && TARGET_FIX_VR4120)"
2248 hilo = gen_rtx_REG (TImode, MD_REG_FIRST);
2249 emit_insn (gen_<u>mulditi3_internal (hilo, operands[1], operands[2]));
2250 emit_move_insn (operands[0], hilo);
2252 else if (TARGET_FIX_R4000)
2253 emit_insn (gen_<u>mulditi3_r4000 (operands[0], operands[1], operands[2]));
2255 emit_insn (gen_<u>mulditi3_internal (operands[0], operands[1],
2260 (define_insn "<u>mulditi3_internal"
2261 [(set (match_operand:TI 0 "muldiv_target_operand" "=x")
2262 (mult:TI (any_extend:TI (match_operand:DI 1 "register_operand" "d"))
2263 (any_extend:TI (match_operand:DI 2 "register_operand" "d"))))]
2265 && !TARGET_FIX_R4000
2266 && !(<CODE> == ZERO_EXTEND && TARGET_FIX_VR4120)"
2268 [(set_attr "type" "imul")
2269 (set_attr "mode" "DI")])
2271 (define_insn "<u>mulditi3_r4000"
2272 [(set (match_operand:TI 0 "register_operand" "=d")
2273 (mult:TI (any_extend:TI (match_operand:DI 1 "register_operand" "d"))
2274 (any_extend:TI (match_operand:DI 2 "register_operand" "d"))))
2275 (clobber (match_scratch:TI 3 "=x"))]
2278 && !(<CODE> == ZERO_EXTEND && TARGET_FIX_VR4120)"
2279 "dmult<u>\t%1,%2\;mflo\t%L0\;mfhi\t%M0"
2280 [(set_attr "type" "imul")
2281 (set_attr "mode" "DI")
2282 (set_attr "insn_count" "3")])
2284 ;; The R4650 supports a 32-bit multiply/ 64-bit accumulate
2285 ;; instruction. The HI/LO registers are used as a 64-bit accumulator.
2287 (define_insn "madsi"
2288 [(set (match_operand:SI 0 "register_operand" "+l")
2289 (plus:SI (mult:SI (match_operand:SI 1 "register_operand" "d")
2290 (match_operand:SI 2 "register_operand" "d"))
2294 [(set_attr "type" "imadd")
2295 (set_attr "accum_in" "0")
2296 (set_attr "mode" "SI")])
2298 ;; See the comment above <u>msubsidi4 for the relationship between
2299 ;; ISA_HAS_DSP and ISA_HAS_DSP_MULT.
2300 (define_insn "<u>maddsidi4"
2301 [(set (match_operand:DI 0 "muldiv_target_operand" "=ka")
2303 (mult:DI (any_extend:DI (match_operand:SI 1 "register_operand" "d"))
2304 (any_extend:DI (match_operand:SI 2 "register_operand" "d")))
2305 (match_operand:DI 3 "muldiv_target_operand" "0")))]
2306 "(TARGET_MAD || ISA_HAS_MACC || GENERATE_MADD_MSUB || ISA_HAS_DSP)
2310 return "mad<u>\t%1,%2";
2311 else if (ISA_HAS_DSP_MULT)
2312 return "madd<u>\t%q0,%1,%2";
2313 else if (GENERATE_MADD_MSUB || TARGET_MIPS5500)
2314 return "madd<u>\t%1,%2";
2316 /* See comment in *macc. */
2317 return "%[macc<u>\t%@,%1,%2%]";
2319 [(set_attr "type" "imadd")
2320 (set_attr "accum_in" "3")
2321 (set_attr "mode" "SI")])
2323 ;; Floating point multiply accumulate instructions.
2325 (define_insn "*madd4<mode>"
2326 [(set (match_operand:ANYF 0 "register_operand" "=f")
2327 (plus:ANYF (mult:ANYF (match_operand:ANYF 1 "register_operand" "f")
2328 (match_operand:ANYF 2 "register_operand" "f"))
2329 (match_operand:ANYF 3 "register_operand" "f")))]
2330 "ISA_HAS_FP_MADD4_MSUB4 && TARGET_FUSED_MADD"
2331 "madd.<fmt>\t%0,%3,%1,%2"
2332 [(set_attr "type" "fmadd")
2333 (set_attr "accum_in" "3")
2334 (set_attr "mode" "<UNITMODE>")])
2336 (define_insn "*madd3<mode>"
2337 [(set (match_operand:ANYF 0 "register_operand" "=f")
2338 (plus:ANYF (mult:ANYF (match_operand:ANYF 1 "register_operand" "f")
2339 (match_operand:ANYF 2 "register_operand" "f"))
2340 (match_operand:ANYF 3 "register_operand" "0")))]
2341 "ISA_HAS_FP_MADD3_MSUB3 && TARGET_FUSED_MADD"
2342 "madd.<fmt>\t%0,%1,%2"
2343 [(set_attr "type" "fmadd")
2344 (set_attr "accum_in" "3")
2345 (set_attr "mode" "<UNITMODE>")])
2347 (define_insn "*msub4<mode>"
2348 [(set (match_operand:ANYF 0 "register_operand" "=f")
2349 (minus:ANYF (mult:ANYF (match_operand:ANYF 1 "register_operand" "f")
2350 (match_operand:ANYF 2 "register_operand" "f"))
2351 (match_operand:ANYF 3 "register_operand" "f")))]
2352 "ISA_HAS_FP_MADD4_MSUB4 && TARGET_FUSED_MADD"
2353 "msub.<fmt>\t%0,%3,%1,%2"
2354 [(set_attr "type" "fmadd")
2355 (set_attr "accum_in" "3")
2356 (set_attr "mode" "<UNITMODE>")])
2358 (define_insn "*msub3<mode>"
2359 [(set (match_operand:ANYF 0 "register_operand" "=f")
2360 (minus:ANYF (mult:ANYF (match_operand:ANYF 1 "register_operand" "f")
2361 (match_operand:ANYF 2 "register_operand" "f"))
2362 (match_operand:ANYF 3 "register_operand" "0")))]
2363 "ISA_HAS_FP_MADD3_MSUB3 && TARGET_FUSED_MADD"
2364 "msub.<fmt>\t%0,%1,%2"
2365 [(set_attr "type" "fmadd")
2366 (set_attr "accum_in" "3")
2367 (set_attr "mode" "<UNITMODE>")])
2369 (define_insn "*nmadd4<mode>"
2370 [(set (match_operand:ANYF 0 "register_operand" "=f")
2371 (neg:ANYF (plus:ANYF
2372 (mult:ANYF (match_operand:ANYF 1 "register_operand" "f")
2373 (match_operand:ANYF 2 "register_operand" "f"))
2374 (match_operand:ANYF 3 "register_operand" "f"))))]
2375 "ISA_HAS_NMADD4_NMSUB4
2376 && TARGET_FUSED_MADD
2377 && HONOR_SIGNED_ZEROS (<MODE>mode)
2378 && !HONOR_NANS (<MODE>mode)"
2379 "nmadd.<fmt>\t%0,%3,%1,%2"
2380 [(set_attr "type" "fmadd")
2381 (set_attr "accum_in" "3")
2382 (set_attr "mode" "<UNITMODE>")])
2384 (define_insn "*nmadd3<mode>"
2385 [(set (match_operand:ANYF 0 "register_operand" "=f")
2386 (neg:ANYF (plus:ANYF
2387 (mult:ANYF (match_operand:ANYF 1 "register_operand" "f")
2388 (match_operand:ANYF 2 "register_operand" "f"))
2389 (match_operand:ANYF 3 "register_operand" "0"))))]
2390 "ISA_HAS_NMADD3_NMSUB3
2391 && TARGET_FUSED_MADD
2392 && HONOR_SIGNED_ZEROS (<MODE>mode)
2393 && !HONOR_NANS (<MODE>mode)"
2394 "nmadd.<fmt>\t%0,%1,%2"
2395 [(set_attr "type" "fmadd")
2396 (set_attr "accum_in" "3")
2397 (set_attr "mode" "<UNITMODE>")])
2399 (define_insn "*nmadd4<mode>_fastmath"
2400 [(set (match_operand:ANYF 0 "register_operand" "=f")
2402 (mult:ANYF (neg:ANYF (match_operand:ANYF 1 "register_operand" "f"))
2403 (match_operand:ANYF 2 "register_operand" "f"))
2404 (match_operand:ANYF 3 "register_operand" "f")))]
2405 "ISA_HAS_NMADD4_NMSUB4
2406 && TARGET_FUSED_MADD
2407 && !HONOR_SIGNED_ZEROS (<MODE>mode)
2408 && !HONOR_NANS (<MODE>mode)"
2409 "nmadd.<fmt>\t%0,%3,%1,%2"
2410 [(set_attr "type" "fmadd")
2411 (set_attr "accum_in" "3")
2412 (set_attr "mode" "<UNITMODE>")])
2414 (define_insn "*nmadd3<mode>_fastmath"
2415 [(set (match_operand:ANYF 0 "register_operand" "=f")
2417 (mult:ANYF (neg:ANYF (match_operand:ANYF 1 "register_operand" "f"))
2418 (match_operand:ANYF 2 "register_operand" "f"))
2419 (match_operand:ANYF 3 "register_operand" "0")))]
2420 "ISA_HAS_NMADD3_NMSUB3
2421 && TARGET_FUSED_MADD
2422 && !HONOR_SIGNED_ZEROS (<MODE>mode)
2423 && !HONOR_NANS (<MODE>mode)"
2424 "nmadd.<fmt>\t%0,%1,%2"
2425 [(set_attr "type" "fmadd")
2426 (set_attr "accum_in" "3")
2427 (set_attr "mode" "<UNITMODE>")])
2429 (define_insn "*nmsub4<mode>"
2430 [(set (match_operand:ANYF 0 "register_operand" "=f")
2431 (neg:ANYF (minus:ANYF
2432 (mult:ANYF (match_operand:ANYF 2 "register_operand" "f")
2433 (match_operand:ANYF 3 "register_operand" "f"))
2434 (match_operand:ANYF 1 "register_operand" "f"))))]
2435 "ISA_HAS_NMADD4_NMSUB4
2436 && TARGET_FUSED_MADD
2437 && HONOR_SIGNED_ZEROS (<MODE>mode)
2438 && !HONOR_NANS (<MODE>mode)"
2439 "nmsub.<fmt>\t%0,%1,%2,%3"
2440 [(set_attr "type" "fmadd")
2441 (set_attr "accum_in" "1")
2442 (set_attr "mode" "<UNITMODE>")])
2444 (define_insn "*nmsub3<mode>"
2445 [(set (match_operand:ANYF 0 "register_operand" "=f")
2446 (neg:ANYF (minus:ANYF
2447 (mult:ANYF (match_operand:ANYF 2 "register_operand" "f")
2448 (match_operand:ANYF 3 "register_operand" "f"))
2449 (match_operand:ANYF 1 "register_operand" "0"))))]
2450 "ISA_HAS_NMADD3_NMSUB3
2451 && TARGET_FUSED_MADD
2452 && HONOR_SIGNED_ZEROS (<MODE>mode)
2453 && !HONOR_NANS (<MODE>mode)"
2454 "nmsub.<fmt>\t%0,%1,%2"
2455 [(set_attr "type" "fmadd")
2456 (set_attr "accum_in" "1")
2457 (set_attr "mode" "<UNITMODE>")])
2459 (define_insn "*nmsub4<mode>_fastmath"
2460 [(set (match_operand:ANYF 0 "register_operand" "=f")
2462 (match_operand:ANYF 1 "register_operand" "f")
2463 (mult:ANYF (match_operand:ANYF 2 "register_operand" "f")
2464 (match_operand:ANYF 3 "register_operand" "f"))))]
2465 "ISA_HAS_NMADD4_NMSUB4
2466 && TARGET_FUSED_MADD
2467 && !HONOR_SIGNED_ZEROS (<MODE>mode)
2468 && !HONOR_NANS (<MODE>mode)"
2469 "nmsub.<fmt>\t%0,%1,%2,%3"
2470 [(set_attr "type" "fmadd")
2471 (set_attr "accum_in" "1")
2472 (set_attr "mode" "<UNITMODE>")])
2474 (define_insn "*nmsub3<mode>_fastmath"
2475 [(set (match_operand:ANYF 0 "register_operand" "=f")
2477 (match_operand:ANYF 1 "register_operand" "f")
2478 (mult:ANYF (match_operand:ANYF 2 "register_operand" "f")
2479 (match_operand:ANYF 3 "register_operand" "0"))))]
2480 "ISA_HAS_NMADD3_NMSUB3
2481 && TARGET_FUSED_MADD
2482 && !HONOR_SIGNED_ZEROS (<MODE>mode)
2483 && !HONOR_NANS (<MODE>mode)"
2484 "nmsub.<fmt>\t%0,%1,%2"
2485 [(set_attr "type" "fmadd")
2486 (set_attr "accum_in" "1")
2487 (set_attr "mode" "<UNITMODE>")])
2490 ;; ....................
2492 ;; DIVISION and REMAINDER
2494 ;; ....................
2497 (define_expand "div<mode>3"
2498 [(set (match_operand:ANYF 0 "register_operand")
2499 (div:ANYF (match_operand:ANYF 1 "reg_or_1_operand")
2500 (match_operand:ANYF 2 "register_operand")))]
2501 "<divide_condition>"
2503 if (const_1_operand (operands[1], <MODE>mode))
2504 if (!(<recip_condition> && flag_unsafe_math_optimizations))
2505 operands[1] = force_reg (<MODE>mode, operands[1]);
2508 ;; These patterns work around the early SB-1 rev2 core "F1" erratum:
2510 ;; If an mfc1 or dmfc1 happens to access the floating point register
2511 ;; file at the same time a long latency operation (div, sqrt, recip,
2512 ;; sqrt) iterates an intermediate result back through the floating
2513 ;; point register file bypass, then instead returning the correct
2514 ;; register value the mfc1 or dmfc1 operation returns the intermediate
2515 ;; result of the long latency operation.
2517 ;; The workaround is to insert an unconditional 'mov' from/to the
2518 ;; long latency op destination register.
2520 (define_insn "*div<mode>3"
2521 [(set (match_operand:ANYF 0 "register_operand" "=f")
2522 (div:ANYF (match_operand:ANYF 1 "register_operand" "f")
2523 (match_operand:ANYF 2 "register_operand" "f")))]
2524 "<divide_condition>"
2527 return "div.<fmt>\t%0,%1,%2\;mov.<fmt>\t%0,%0";
2529 return "div.<fmt>\t%0,%1,%2";
2531 [(set_attr "type" "fdiv")
2532 (set_attr "mode" "<UNITMODE>")
2533 (set (attr "insn_count")
2534 (if_then_else (match_test "TARGET_FIX_SB1")
2538 (define_insn "*recip<mode>3"
2539 [(set (match_operand:ANYF 0 "register_operand" "=f")
2540 (div:ANYF (match_operand:ANYF 1 "const_1_operand" "")
2541 (match_operand:ANYF 2 "register_operand" "f")))]
2542 "<recip_condition> && flag_unsafe_math_optimizations"
2545 return "recip.<fmt>\t%0,%2\;mov.<fmt>\t%0,%0";
2547 return "recip.<fmt>\t%0,%2";
2549 [(set_attr "type" "frdiv")
2550 (set_attr "mode" "<UNITMODE>")
2551 (set (attr "insn_count")
2552 (if_then_else (match_test "TARGET_FIX_SB1")
2556 ;; VR4120 errata MD(A1): signed division instructions do not work correctly
2557 ;; with negative operands. We use special libgcc functions instead.
2559 ;; Expand generates divmod instructions for individual division and modulus
2560 ;; operations. We then rely on CSE to reuse earlier divmods where possible.
2561 ;; This means that, when generating MIPS16 code, it is better not to expose
2562 ;; the fixed LO register until after CSE has finished. However, it's still
2563 ;; better to split before register allocation, so that we don't allocate
2564 ;; one of the scarce MIPS16 registers to an unused result.
2565 (define_insn_and_split "divmod<mode>4"
2566 [(set (match_operand:GPR 0 "register_operand" "=kl")
2567 (div:GPR (match_operand:GPR 1 "register_operand" "d")
2568 (match_operand:GPR 2 "register_operand" "d")))
2569 (set (match_operand:GPR 3 "register_operand" "=d")
2570 (mod:GPR (match_dup 1)
2572 "ISA_HAS_<D>DIV && !TARGET_FIX_VR4120"
2574 "&& ((TARGET_MIPS16 && cse_not_expected) || reload_completed)"
2577 emit_insn (gen_divmod<mode>4_split (operands[3], operands[1], operands[2]));
2579 emit_move_insn (operands[0], gen_rtx_REG (<MODE>mode, LO_REGNUM));
2582 [(set_attr "type" "idiv")
2583 (set_attr "mode" "<MODE>")
2584 ;; Worst case for MIPS16.
2585 (set_attr "insn_count" "3")])
2587 ;; See the comment above "divmod<mode>4" for the MIPS16 handling.
2588 (define_insn_and_split "udivmod<mode>4"
2589 [(set (match_operand:GPR 0 "register_operand" "=kl")
2590 (udiv:GPR (match_operand:GPR 1 "register_operand" "d")
2591 (match_operand:GPR 2 "register_operand" "d")))
2592 (set (match_operand:GPR 3 "register_operand" "=d")
2593 (umod:GPR (match_dup 1)
2597 "(TARGET_MIPS16 && cse_not_expected) || reload_completed"
2600 emit_insn (gen_udivmod<mode>4_split (operands[3], operands[1], operands[2]));
2602 emit_move_insn (operands[0], gen_rtx_REG (<MODE>mode, LO_REGNUM));
2605 [(set_attr "type" "idiv")
2606 (set_attr "mode" "<MODE>")
2607 ;; Worst case for MIPS16.
2608 (set_attr "insn_count" "3")])
2610 (define_expand "<u>divmod<mode>4_split"
2611 [(set (match_operand:GPR 0 "register_operand")
2612 (any_mod:GPR (match_operand:GPR 1 "register_operand")
2613 (match_operand:GPR 2 "register_operand")))]
2620 hilo = gen_rtx_REG (TImode, MD_REG_FIRST);
2621 emit_insn (gen_<u>divmod<mode>4_hilo_ti (hilo, operands[1],
2623 emit_insn (gen_mfhi<mode>_ti (operands[0], hilo));
2627 hilo = gen_rtx_REG (DImode, MD_REG_FIRST);
2628 emit_insn (gen_<u>divmod<mode>4_hilo_di (hilo, operands[1],
2630 emit_insn (gen_mfhi<mode>_di (operands[0], hilo));
2635 (define_insn "<u>divmod<GPR:mode>4_hilo_<HILO:mode>"
2636 [(set (match_operand:HILO 0 "muldiv_target_operand" "=x")
2638 [(any_div:GPR (match_operand:GPR 1 "register_operand" "d")
2639 (match_operand:GPR 2 "register_operand" "d"))]
2641 "ISA_HAS_<GPR:D>DIV"
2642 { return mips_output_division ("<GPR:d>div<u>\t%.,%1,%2", operands); }
2643 [(set_attr "type" "idiv")
2644 (set_attr "mode" "<GPR:MODE>")])
2647 ;; ....................
2651 ;; ....................
2653 ;; These patterns work around the early SB-1 rev2 core "F1" erratum (see
2654 ;; "*div[sd]f3" comment for details).
2656 (define_insn "sqrt<mode>2"
2657 [(set (match_operand:ANYF 0 "register_operand" "=f")
2658 (sqrt:ANYF (match_operand:ANYF 1 "register_operand" "f")))]
2662 return "sqrt.<fmt>\t%0,%1\;mov.<fmt>\t%0,%0";
2664 return "sqrt.<fmt>\t%0,%1";
2666 [(set_attr "type" "fsqrt")
2667 (set_attr "mode" "<UNITMODE>")
2668 (set (attr "insn_count")
2669 (if_then_else (match_test "TARGET_FIX_SB1")
2673 (define_insn "*rsqrt<mode>a"
2674 [(set (match_operand:ANYF 0 "register_operand" "=f")
2675 (div:ANYF (match_operand:ANYF 1 "const_1_operand" "")
2676 (sqrt:ANYF (match_operand:ANYF 2 "register_operand" "f"))))]
2677 "<recip_condition> && flag_unsafe_math_optimizations"
2680 return "rsqrt.<fmt>\t%0,%2\;mov.<fmt>\t%0,%0";
2682 return "rsqrt.<fmt>\t%0,%2";
2684 [(set_attr "type" "frsqrt")
2685 (set_attr "mode" "<UNITMODE>")
2686 (set (attr "insn_count")
2687 (if_then_else (match_test "TARGET_FIX_SB1")
2691 (define_insn "*rsqrt<mode>b"
2692 [(set (match_operand:ANYF 0 "register_operand" "=f")
2693 (sqrt:ANYF (div:ANYF (match_operand:ANYF 1 "const_1_operand" "")
2694 (match_operand:ANYF 2 "register_operand" "f"))))]
2695 "<recip_condition> && flag_unsafe_math_optimizations"
2698 return "rsqrt.<fmt>\t%0,%2\;mov.<fmt>\t%0,%0";
2700 return "rsqrt.<fmt>\t%0,%2";
2702 [(set_attr "type" "frsqrt")
2703 (set_attr "mode" "<UNITMODE>")
2704 (set (attr "insn_count")
2705 (if_then_else (match_test "TARGET_FIX_SB1")
2710 ;; ....................
2714 ;; ....................
2716 ;; Do not use the integer abs macro instruction, since that signals an
2717 ;; exception on -2147483648 (sigh).
2719 ;; The "legacy" (as opposed to "2008") form of ABS.fmt is an arithmetic
2720 ;; instruction that treats all NaN inputs as invalid; it does not clear
2721 ;; their sign bit. We therefore can't use that form if the signs of
2724 (define_insn "abs<mode>2"
2725 [(set (match_operand:ANYF 0 "register_operand" "=f")
2726 (abs:ANYF (match_operand:ANYF 1 "register_operand" "f")))]
2727 "mips_abs == MIPS_IEEE_754_2008 || !HONOR_NANS (<MODE>mode)"
2729 [(set_attr "type" "fabs")
2730 (set_attr "mode" "<UNITMODE>")])
2733 ;; ...................
2735 ;; Count leading zeroes.
2737 ;; ...................
2740 (define_insn "clz<mode>2"
2741 [(set (match_operand:GPR 0 "register_operand" "=d")
2742 (clz:GPR (match_operand:GPR 1 "register_operand" "d")))]
2745 [(set_attr "type" "clz")
2746 (set_attr "mode" "<MODE>")])
2749 ;; ...................
2751 ;; Count number of set bits.
2753 ;; ...................
2756 (define_insn "popcount<mode>2"
2757 [(set (match_operand:GPR 0 "register_operand" "=d")
2758 (popcount:GPR (match_operand:GPR 1 "register_operand" "d")))]
2761 [(set_attr "type" "pop")
2762 (set_attr "mode" "<MODE>")])
2764 ;; The POP instruction is special as it does not take into account the upper
2765 ;; 32bits and is documented that way.
2766 (define_insn "*popcountdi2_trunc"
2767 [(set (match_operand:SI 0 "register_operand" "=d")
2768 (popcount:SI (truncate:SI (match_operand:DI 1 "register_operand" "d"))))]
2769 "ISA_HAS_POP && TARGET_64BIT"
2771 [(set_attr "type" "pop")
2772 (set_attr "mode" "SI")])
2775 ;; ....................
2777 ;; NEGATION and ONE'S COMPLEMENT
2779 ;; ....................
2781 (define_insn "negsi2"
2782 [(set (match_operand:SI 0 "register_operand" "=d")
2783 (neg:SI (match_operand:SI 1 "register_operand" "d")))]
2787 return "neg\t%0,%1";
2789 return "subu\t%0,%.,%1";
2791 [(set_attr "alu_type" "sub")
2792 (set_attr "mode" "SI")])
2794 (define_insn "negdi2"
2795 [(set (match_operand:DI 0 "register_operand" "=d")
2796 (neg:DI (match_operand:DI 1 "register_operand" "d")))]
2797 "TARGET_64BIT && !TARGET_MIPS16"
2799 [(set_attr "alu_type" "sub")
2800 (set_attr "mode" "DI")])
2802 ;; The "legacy" (as opposed to "2008") form of NEG.fmt is an arithmetic
2803 ;; instruction that treats all NaN inputs as invalid; it does not flip
2804 ;; their sign bit. We therefore can't use that form if the signs of
2807 (define_insn "neg<mode>2"
2808 [(set (match_operand:ANYF 0 "register_operand" "=f")
2809 (neg:ANYF (match_operand:ANYF 1 "register_operand" "f")))]
2810 "mips_abs == MIPS_IEEE_754_2008 || !HONOR_NANS (<MODE>mode)"
2812 [(set_attr "type" "fneg")
2813 (set_attr "mode" "<UNITMODE>")])
2815 (define_insn "one_cmpl<mode>2"
2816 [(set (match_operand:GPR 0 "register_operand" "=!u,d")
2817 (not:GPR (match_operand:GPR 1 "register_operand" "!u,d")))]
2821 return "not\t%0,%1";
2823 return "nor\t%0,%.,%1";
2825 [(set_attr "alu_type" "not")
2826 (set_attr "compression" "micromips,*")
2827 (set_attr "mode" "<MODE>")])
2830 ;; ....................
2834 ;; ....................
2837 ;; Many of these instructions use trivial define_expands, because we
2838 ;; want to use a different set of constraints when TARGET_MIPS16.
2840 (define_expand "and<mode>3"
2841 [(set (match_operand:GPR 0 "register_operand")
2842 (and:GPR (match_operand:GPR 1 "register_operand")
2843 (match_operand:GPR 2 "and_reg_operand")))])
2845 ;; The middle-end is not allowed to convert ANDing with 0xffff_ffff into a
2846 ;; zero_extendsidi2 because of TRULY_NOOP_TRUNCATION, so handle these here.
2847 ;; Note that this variant does not trigger for SI mode because we require
2848 ;; a 64-bit HOST_WIDE_INT and 0xffff_ffff wouldn't be a canonical
2849 ;; sign-extended SImode value.
2851 ;; These are possible combinations for operand 1 and 2. The table
2852 ;; includes both MIPS and MIPS16 cases. (r=register, mem=memory,
2853 ;; 16=MIPS16, x=match, S=split):
2855 ;; \ op1 r/EXT r/!EXT mem r/16 mem/16
2861 ;; 0xffff_ffff x S x S x
2866 (define_insn "*and<mode>3"
2867 [(set (match_operand:GPR 0 "register_operand" "=d,d,d,!u,d,d,d,!u,d")
2868 (and:GPR (match_operand:GPR 1 "nonimmediate_operand" "o,o,W,!u,d,d,d,0,d")
2869 (match_operand:GPR 2 "and_operand" "Yb,Yh,Yw,Uean,K,Yx,Yw,!u,d")))]
2870 "!TARGET_MIPS16 && and_operands_ok (<MODE>mode, operands[1], operands[2])"
2874 switch (which_alternative)
2877 operands[1] = gen_lowpart (QImode, operands[1]);
2878 return "lbu\t%0,%1";
2880 operands[1] = gen_lowpart (HImode, operands[1]);
2881 return "lhu\t%0,%1";
2883 operands[1] = gen_lowpart (SImode, operands[1]);
2884 return "lwu\t%0,%1";
2887 return "andi\t%0,%1,%x2";
2889 len = low_bitmask_len (<MODE>mode, INTVAL (operands[2]));
2890 operands[2] = GEN_INT (len);
2891 return "<d>ext\t%0,%1,0,%2";
2896 return "and\t%0,%1,%2";
2901 [(set_attr "move_type" "load,load,load,andi,andi,ext_ins,shift_shift,logical,logical")
2902 (set_attr "compression" "*,*,*,micromips,*,*,*,micromips,*")
2903 (set_attr "mode" "<MODE>")])
2905 (define_insn "*and<mode>3_mips16"
2906 [(set (match_operand:GPR 0 "register_operand" "=d,d,d,d,d")
2907 (and:GPR (match_operand:GPR 1 "nonimmediate_operand" "%W,W,W,d,0")
2908 (match_operand:GPR 2 "and_operand" "Yb,Yh,Yw,Yw,d")))]
2909 "TARGET_MIPS16 && and_operands_ok (<MODE>mode, operands[1], operands[2])"
2911 switch (which_alternative)
2914 operands[1] = gen_lowpart (QImode, operands[1]);
2915 return "lbu\t%0,%1";
2917 operands[1] = gen_lowpart (HImode, operands[1]);
2918 return "lhu\t%0,%1";
2920 operands[1] = gen_lowpart (SImode, operands[1]);
2921 return "lwu\t%0,%1";
2925 return "and\t%0,%2";
2930 [(set_attr "move_type" "load,load,load,shift_shift,logical")
2931 (set_attr "mode" "<MODE>")])
2933 (define_expand "ior<mode>3"
2934 [(set (match_operand:GPR 0 "register_operand")
2935 (ior:GPR (match_operand:GPR 1 "register_operand")
2936 (match_operand:GPR 2 "uns_arith_operand")))]
2940 operands[2] = force_reg (<MODE>mode, operands[2]);
2943 (define_insn "*ior<mode>3"
2944 [(set (match_operand:GPR 0 "register_operand" "=!u,d,d")
2945 (ior:GPR (match_operand:GPR 1 "register_operand" "%0,d,d")
2946 (match_operand:GPR 2 "uns_arith_operand" "!u,d,K")))]
2952 [(set_attr "alu_type" "or")
2953 (set_attr "compression" "micromips,*,*")
2954 (set_attr "mode" "<MODE>")])
2956 (define_insn "*ior<mode>3_mips16"
2957 [(set (match_operand:GPR 0 "register_operand" "=d")
2958 (ior:GPR (match_operand:GPR 1 "register_operand" "%0")
2959 (match_operand:GPR 2 "register_operand" "d")))]
2962 [(set_attr "alu_type" "or")
2963 (set_attr "mode" "<MODE>")])
2965 (define_expand "xor<mode>3"
2966 [(set (match_operand:GPR 0 "register_operand")
2967 (xor:GPR (match_operand:GPR 1 "register_operand")
2968 (match_operand:GPR 2 "uns_arith_operand")))]
2972 (define_insn "*xor<mode>3"
2973 [(set (match_operand:GPR 0 "register_operand" "=!u,d,d")
2974 (xor:GPR (match_operand:GPR 1 "register_operand" "%0,d,d")
2975 (match_operand:GPR 2 "uns_arith_operand" "!u,d,K")))]
2981 [(set_attr "alu_type" "xor")
2982 (set_attr "compression" "micromips,*,*")
2983 (set_attr "mode" "<MODE>")])
2985 (define_insn "*xor<mode>3_mips16"
2986 [(set (match_operand:GPR 0 "register_operand" "=d,t,t,t")
2987 (xor:GPR (match_operand:GPR 1 "register_operand" "%0,d,d,d")
2988 (match_operand:GPR 2 "uns_arith_operand" "d,Uub8,K,d")))]
2995 [(set_attr "alu_type" "xor")
2996 (set_attr "mode" "<MODE>")
2997 (set_attr "extended_mips16" "no,no,yes,no")])
2999 (define_insn "*nor<mode>3"
3000 [(set (match_operand:GPR 0 "register_operand" "=d")
3001 (and:GPR (not:GPR (match_operand:GPR 1 "register_operand" "d"))
3002 (not:GPR (match_operand:GPR 2 "register_operand" "d"))))]
3005 [(set_attr "alu_type" "nor")
3006 (set_attr "mode" "<MODE>")])
3009 ;; ....................
3013 ;; ....................
3017 (define_insn "truncdfsf2"
3018 [(set (match_operand:SF 0 "register_operand" "=f")
3019 (float_truncate:SF (match_operand:DF 1 "register_operand" "f")))]
3020 "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
3022 [(set_attr "type" "fcvt")
3023 (set_attr "cnv_mode" "D2S")
3024 (set_attr "mode" "SF")])
3026 ;; Integer truncation patterns. Truncating SImode values to smaller
3027 ;; modes is a no-op, as it is for most other GCC ports. Truncating
3028 ;; DImode values to SImode is not a no-op for TARGET_64BIT since we
3029 ;; need to make sure that the lower 32 bits are properly sign-extended
3030 ;; (see TRULY_NOOP_TRUNCATION). Truncating DImode values into modes
3031 ;; smaller than SImode is equivalent to two separate truncations:
3034 ;; DI ---> HI == DI ---> SI ---> HI
3035 ;; DI ---> QI == DI ---> SI ---> QI
3037 ;; Step A needs a real instruction but step B does not.
3039 (define_insn "truncdi<mode>2"
3040 [(set (match_operand:SUBDI 0 "nonimmediate_operand" "=d,m")
3041 (truncate:SUBDI (match_operand:DI 1 "register_operand" "d,d")))]
3046 [(set_attr "move_type" "sll0,store")
3047 (set_attr "mode" "SI")])
3049 ;; Combiner patterns to optimize shift/truncate combinations.
3051 (define_insn "*ashr_trunc<mode>"
3052 [(set (match_operand:SUBDI 0 "register_operand" "=d")
3054 (ashiftrt:DI (match_operand:DI 1 "register_operand" "d")
3055 (match_operand:DI 2 "const_arith_operand" ""))))]
3056 "TARGET_64BIT && !TARGET_MIPS16 && IN_RANGE (INTVAL (operands[2]), 32, 63)"
3058 [(set_attr "type" "shift")
3059 (set_attr "mode" "<MODE>")])
3061 (define_insn "*lshr32_trunc<mode>"
3062 [(set (match_operand:SUBDI 0 "register_operand" "=d")
3064 (lshiftrt:DI (match_operand:DI 1 "register_operand" "d")
3066 "TARGET_64BIT && !TARGET_MIPS16"
3068 [(set_attr "type" "shift")
3069 (set_attr "mode" "<MODE>")])
3071 ;; Logical shift by more than 32 results in proper SI values so truncation is
3072 ;; removed by the middle end. Note that a logical shift by 32 is handled by
3073 ;; the previous pattern.
3074 (define_insn "*<optab>_trunc<mode>_exts"
3075 [(set (match_operand:SUBDI 0 "register_operand" "=d")
3077 (any_shiftrt:DI (match_operand:DI 1 "register_operand" "d")
3078 (match_operand:DI 2 "const_arith_operand" ""))))]
3079 "ISA_HAS_EXTS && TARGET_64BIT && UINTVAL (operands[2]) < 32"
3081 [(set_attr "type" "arith")
3082 (set_attr "mode" "<MODE>")])
3085 ;; ....................
3089 ;; ....................
3093 (define_expand "zero_extendsidi2"
3094 [(set (match_operand:DI 0 "register_operand")
3095 (zero_extend:DI (match_operand:SI 1 "nonimmediate_operand")))]
3098 (define_insn_and_split "*zero_extendsidi2"
3099 [(set (match_operand:DI 0 "register_operand" "=d,d")
3100 (zero_extend:DI (match_operand:SI 1 "nonimmediate_operand" "d,W")))]
3101 "TARGET_64BIT && !ISA_HAS_EXT_INS"
3105 "&& reload_completed && REG_P (operands[1])"
3107 (ashift:DI (match_dup 1) (const_int 32)))
3109 (lshiftrt:DI (match_dup 0) (const_int 32)))]
3110 { operands[1] = gen_lowpart (DImode, operands[1]); }
3111 [(set_attr "move_type" "shift_shift,load")
3112 (set_attr "mode" "DI")])
3114 (define_insn "*zero_extendsidi2_dext"
3115 [(set (match_operand:DI 0 "register_operand" "=d,d")
3116 (zero_extend:DI (match_operand:SI 1 "nonimmediate_operand" "d,W")))]
3117 "TARGET_64BIT && ISA_HAS_EXT_INS"
3121 [(set_attr "move_type" "arith,load")
3122 (set_attr "mode" "DI")])
3124 ;; See the comment before the *and<mode>3 pattern why this is generated by
3128 [(set (match_operand:DI 0 "register_operand")
3129 (and:DI (match_operand:DI 1 "register_operand")
3130 (const_int 4294967295)))]
3131 "TARGET_64BIT && !ISA_HAS_EXT_INS && reload_completed"
3133 (ashift:DI (match_dup 1) (const_int 32)))
3135 (lshiftrt:DI (match_dup 0) (const_int 32)))])
3137 (define_expand "zero_extend<SHORT:mode><GPR:mode>2"
3138 [(set (match_operand:GPR 0 "register_operand")
3139 (zero_extend:GPR (match_operand:SHORT 1 "nonimmediate_operand")))]
3142 if (TARGET_MIPS16 && !GENERATE_MIPS16E
3143 && !memory_operand (operands[1], <SHORT:MODE>mode))
3145 emit_insn (gen_and<GPR:mode>3 (operands[0],
3146 gen_lowpart (<GPR:MODE>mode, operands[1]),
3147 force_reg (<GPR:MODE>mode,
3148 GEN_INT (<SHORT:mask>))));
3153 (define_insn "*zero_extend<SHORT:mode><GPR:mode>2"
3154 [(set (match_operand:GPR 0 "register_operand" "=!u,d,d")
3156 (match_operand:SHORT 1 "nonimmediate_operand" "!u,d,m")))]
3159 andi\t%0,%1,<SHORT:mask>
3160 andi\t%0,%1,<SHORT:mask>
3161 l<SHORT:size>u\t%0,%1"
3162 [(set_attr "move_type" "andi,andi,load")
3163 (set_attr "compression" "micromips,*,*")
3164 (set_attr "mode" "<GPR:MODE>")])
3166 (define_insn "*zero_extend<SHORT:mode><GPR:mode>2_mips16e"
3167 [(set (match_operand:GPR 0 "register_operand" "=d")
3168 (zero_extend:GPR (match_operand:SHORT 1 "register_operand" "0")))]
3170 "ze<SHORT:size>\t%0"
3171 ;; This instruction is effectively a special encoding of ANDI.
3172 [(set_attr "move_type" "andi")
3173 (set_attr "mode" "<GPR:MODE>")])
3175 (define_insn "*zero_extend<SHORT:mode><GPR:mode>2_mips16"
3176 [(set (match_operand:GPR 0 "register_operand" "=d")
3177 (zero_extend:GPR (match_operand:SHORT 1 "memory_operand" "m")))]
3179 "l<SHORT:size>u\t%0,%1"
3180 [(set_attr "move_type" "load")
3181 (set_attr "mode" "<GPR:MODE>")])
3183 (define_expand "zero_extendqihi2"
3184 [(set (match_operand:HI 0 "register_operand")
3185 (zero_extend:HI (match_operand:QI 1 "nonimmediate_operand")))]
3188 if (TARGET_MIPS16 && !memory_operand (operands[1], QImode))
3190 emit_insn (gen_zero_extendqisi2 (gen_lowpart (SImode, operands[0]),
3196 (define_insn "*zero_extendqihi2"
3197 [(set (match_operand:HI 0 "register_operand" "=d,d")
3198 (zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "d,m")))]
3203 [(set_attr "move_type" "andi,load")
3204 (set_attr "mode" "HI")])
3206 (define_insn "*zero_extendqihi2_mips16"
3207 [(set (match_operand:HI 0 "register_operand" "=d")
3208 (zero_extend:HI (match_operand:QI 1 "memory_operand" "m")))]
3211 [(set_attr "move_type" "load")
3212 (set_attr "mode" "HI")])
3214 ;; Combiner patterns to optimize truncate/zero_extend combinations.
3216 (define_insn "*zero_extend<GPR:mode>_trunc<SHORT:mode>"
3217 [(set (match_operand:GPR 0 "register_operand" "=d")
3219 (truncate:SHORT (match_operand:DI 1 "register_operand" "d"))))]
3220 "TARGET_64BIT && !TARGET_MIPS16"
3222 operands[2] = GEN_INT (GET_MODE_MASK (<SHORT:MODE>mode));
3223 return "andi\t%0,%1,%x2";
3225 [(set_attr "alu_type" "and")
3226 (set_attr "mode" "<GPR:MODE>")])
3228 (define_insn "*zero_extendhi_truncqi"
3229 [(set (match_operand:HI 0 "register_operand" "=d")
3231 (truncate:QI (match_operand:DI 1 "register_operand" "d"))))]
3232 "TARGET_64BIT && !TARGET_MIPS16"
3234 [(set_attr "alu_type" "and")
3235 (set_attr "mode" "HI")])
3238 ;; ....................
3242 ;; ....................
3245 ;; Those for integer source operand are ordered widest source type first.
3247 ;; When TARGET_64BIT, all SImode integer and accumulator registers
3248 ;; should already be in sign-extended form (see TRULY_NOOP_TRUNCATION
3249 ;; and truncdisi2). We can therefore get rid of register->register
3250 ;; instructions if we constrain the source to be in the same register as
3253 ;; Only the pre-reload scheduler sees the type of the register alternatives;
3254 ;; we split them into nothing before the post-reload scheduler runs.
3255 ;; These alternatives therefore have type "move" in order to reflect
3256 ;; what happens if the two pre-reload operands cannot be tied, and are
3257 ;; instead allocated two separate GPRs. We don't distinguish between
3258 ;; the GPR and LO cases because we don't usually know during pre-reload
3259 ;; scheduling whether an operand will be LO or not.
3260 (define_insn_and_split "extendsidi2"
3261 [(set (match_operand:DI 0 "register_operand" "=d,l,d")
3262 (sign_extend:DI (match_operand:SI 1 "nonimmediate_operand" "0,0,m")))]
3268 "&& reload_completed && register_operand (operands[1], VOIDmode)"
3271 emit_note (NOTE_INSN_DELETED);
3274 [(set_attr "move_type" "move,move,load")
3275 (set_attr "mode" "DI")])
3277 (define_expand "extend<SHORT:mode><GPR:mode>2"
3278 [(set (match_operand:GPR 0 "register_operand")
3279 (sign_extend:GPR (match_operand:SHORT 1 "nonimmediate_operand")))]
3282 (define_insn "*extend<SHORT:mode><GPR:mode>2_mips16e"
3283 [(set (match_operand:GPR 0 "register_operand" "=d,d")
3284 (sign_extend:GPR (match_operand:SHORT 1 "nonimmediate_operand" "0,m")))]
3288 l<SHORT:size>\t%0,%1"
3289 [(set_attr "move_type" "signext,load")
3290 (set_attr "mode" "<GPR:MODE>")])
3292 (define_insn_and_split "*extend<SHORT:mode><GPR:mode>2"
3293 [(set (match_operand:GPR 0 "register_operand" "=d,d")
3295 (match_operand:SHORT 1 "nonimmediate_operand" "d,m")))]
3296 "!ISA_HAS_SEB_SEH && !GENERATE_MIPS16E"
3299 l<SHORT:size>\t%0,%1"
3300 "&& reload_completed && REG_P (operands[1])"
3301 [(set (match_dup 0) (ashift:GPR (match_dup 1) (match_dup 2)))
3302 (set (match_dup 0) (ashiftrt:GPR (match_dup 0) (match_dup 2)))]
3304 operands[1] = gen_lowpart (<GPR:MODE>mode, operands[1]);
3305 operands[2] = GEN_INT (GET_MODE_BITSIZE (<GPR:MODE>mode)
3306 - GET_MODE_BITSIZE (<SHORT:MODE>mode));
3308 [(set_attr "move_type" "shift_shift,load")
3309 (set_attr "mode" "<GPR:MODE>")])
3311 (define_insn "*extend<SHORT:mode><GPR:mode>2_se<SHORT:size>"
3312 [(set (match_operand:GPR 0 "register_operand" "=d,d")
3314 (match_operand:SHORT 1 "nonimmediate_operand" "d,m")))]
3317 se<SHORT:size>\t%0,%1
3318 l<SHORT:size>\t%0,%1"
3319 [(set_attr "move_type" "signext,load")
3320 (set_attr "mode" "<GPR:MODE>")])
3322 (define_expand "extendqihi2"
3323 [(set (match_operand:HI 0 "register_operand")
3324 (sign_extend:HI (match_operand:QI 1 "nonimmediate_operand")))]
3327 (define_insn "*extendqihi2_mips16e"
3328 [(set (match_operand:HI 0 "register_operand" "=d,d")
3329 (sign_extend:HI (match_operand:QI 1 "nonimmediate_operand" "0,m")))]
3334 [(set_attr "move_type" "signext,load")
3335 (set_attr "mode" "SI")])
3337 (define_insn_and_split "*extendqihi2"
3338 [(set (match_operand:HI 0 "register_operand" "=d,d")
3340 (match_operand:QI 1 "nonimmediate_operand" "d,m")))]
3341 "!ISA_HAS_SEB_SEH && !GENERATE_MIPS16E"
3345 "&& reload_completed && REG_P (operands[1])"
3346 [(set (match_dup 0) (ashift:SI (match_dup 1) (match_dup 2)))
3347 (set (match_dup 0) (ashiftrt:SI (match_dup 0) (match_dup 2)))]
3349 operands[0] = gen_lowpart (SImode, operands[0]);
3350 operands[1] = gen_lowpart (SImode, operands[1]);
3351 operands[2] = GEN_INT (GET_MODE_BITSIZE (SImode)
3352 - GET_MODE_BITSIZE (QImode));
3354 [(set_attr "move_type" "shift_shift,load")
3355 (set_attr "mode" "SI")])
3357 (define_insn "*extendqihi2_seb"
3358 [(set (match_operand:HI 0 "register_operand" "=d,d")
3360 (match_operand:QI 1 "nonimmediate_operand" "d,m")))]
3365 [(set_attr "move_type" "signext,load")
3366 (set_attr "mode" "SI")])
3368 ;; Combiner patterns for truncate/sign_extend combinations. The SI versions
3369 ;; use the shift/truncate patterns.
3371 (define_insn_and_split "*extenddi_truncate<mode>"
3372 [(set (match_operand:DI 0 "register_operand" "=d")
3374 (truncate:SHORT (match_operand:DI 1 "register_operand" "d"))))]
3375 "TARGET_64BIT && !TARGET_MIPS16 && !ISA_HAS_EXTS"
3377 "&& reload_completed"
3379 (ashift:DI (match_dup 1)
3382 (ashiftrt:DI (match_dup 2)
3385 operands[2] = gen_lowpart (DImode, operands[0]);
3386 operands[3] = GEN_INT (BITS_PER_WORD - GET_MODE_BITSIZE (<MODE>mode));
3388 [(set_attr "move_type" "shift_shift")
3389 (set_attr "mode" "DI")])
3391 (define_insn_and_split "*extendsi_truncate<mode>"
3392 [(set (match_operand:SI 0 "register_operand" "=d")
3394 (truncate:SHORT (match_operand:DI 1 "register_operand" "d"))))]
3395 "TARGET_64BIT && !TARGET_MIPS16 && !ISA_HAS_EXTS"
3397 "&& reload_completed"
3399 (ashift:DI (match_dup 1)
3402 (truncate:SI (ashiftrt:DI (match_dup 2)
3405 operands[2] = gen_lowpart (DImode, operands[0]);
3406 operands[3] = GEN_INT (BITS_PER_WORD - GET_MODE_BITSIZE (<MODE>mode));
3408 [(set_attr "move_type" "shift_shift")
3409 (set_attr "mode" "SI")])
3411 (define_insn_and_split "*extendhi_truncateqi"
3412 [(set (match_operand:HI 0 "register_operand" "=d")
3414 (truncate:QI (match_operand:DI 1 "register_operand" "d"))))]
3415 "TARGET_64BIT && !TARGET_MIPS16 && !ISA_HAS_EXTS"
3417 "&& reload_completed"
3419 (ashift:DI (match_dup 1)
3422 (truncate:HI (ashiftrt:DI (match_dup 2)
3425 operands[2] = gen_lowpart (DImode, operands[0]);
3427 [(set_attr "move_type" "shift_shift")
3428 (set_attr "mode" "SI")])
3430 (define_insn "*extend<GPR:mode>_truncate<SHORT:mode>_exts"
3431 [(set (match_operand:GPR 0 "register_operand" "=d")
3433 (truncate:SHORT (match_operand:DI 1 "register_operand" "d"))))]
3434 "TARGET_64BIT && !TARGET_MIPS16 && ISA_HAS_EXTS"
3436 operands[2] = GEN_INT (GET_MODE_BITSIZE (<SHORT:MODE>mode));
3437 return "exts\t%0,%1,0,%m2";
3439 [(set_attr "type" "arith")
3440 (set_attr "mode" "<GPR:MODE>")])
3442 (define_insn "*extendhi_truncateqi_exts"
3443 [(set (match_operand:HI 0 "register_operand" "=d")
3445 (truncate:QI (match_operand:DI 1 "register_operand" "d"))))]
3446 "TARGET_64BIT && !TARGET_MIPS16 && ISA_HAS_EXTS"
3448 [(set_attr "type" "arith")
3449 (set_attr "mode" "SI")])
3451 (define_insn "extendsfdf2"
3452 [(set (match_operand:DF 0 "register_operand" "=f")
3453 (float_extend:DF (match_operand:SF 1 "register_operand" "f")))]
3454 "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
3456 [(set_attr "type" "fcvt")
3457 (set_attr "cnv_mode" "S2D")
3458 (set_attr "mode" "DF")])
3461 ;; ....................
3465 ;; ....................
3467 (define_expand "fix_truncdfsi2"
3468 [(set (match_operand:SI 0 "register_operand")
3469 (fix:SI (match_operand:DF 1 "register_operand")))]
3470 "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
3472 if (!ISA_HAS_TRUNC_W)
3474 emit_insn (gen_fix_truncdfsi2_macro (operands[0], operands[1]));
3479 (define_insn "fix_truncdfsi2_insn"
3480 [(set (match_operand:SI 0 "register_operand" "=f")
3481 (fix:SI (match_operand:DF 1 "register_operand" "f")))]
3482 "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT && ISA_HAS_TRUNC_W"
3484 [(set_attr "type" "fcvt")
3485 (set_attr "mode" "DF")
3486 (set_attr "cnv_mode" "D2I")])
3488 (define_insn "fix_truncdfsi2_macro"
3489 [(set (match_operand:SI 0 "register_operand" "=f")
3490 (fix:SI (match_operand:DF 1 "register_operand" "f")))
3491 (clobber (match_scratch:DF 2 "=d"))]
3492 "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT && !ISA_HAS_TRUNC_W"
3494 if (mips_nomacro.nesting_level > 0)
3495 return ".set\tmacro\;trunc.w.d %0,%1,%2\;.set\tnomacro";
3497 return "trunc.w.d %0,%1,%2";
3499 [(set_attr "type" "fcvt")
3500 (set_attr "mode" "DF")
3501 (set_attr "cnv_mode" "D2I")
3502 (set_attr "insn_count" "9")])
3504 (define_expand "fix_truncsfsi2"
3505 [(set (match_operand:SI 0 "register_operand")
3506 (fix:SI (match_operand:SF 1 "register_operand")))]
3509 if (!ISA_HAS_TRUNC_W)
3511 emit_insn (gen_fix_truncsfsi2_macro (operands[0], operands[1]));
3516 (define_insn "fix_truncsfsi2_insn"
3517 [(set (match_operand:SI 0 "register_operand" "=f")
3518 (fix:SI (match_operand:SF 1 "register_operand" "f")))]
3519 "TARGET_HARD_FLOAT && ISA_HAS_TRUNC_W"
3521 [(set_attr "type" "fcvt")
3522 (set_attr "mode" "SF")
3523 (set_attr "cnv_mode" "S2I")])
3525 (define_insn "fix_truncsfsi2_macro"
3526 [(set (match_operand:SI 0 "register_operand" "=f")
3527 (fix:SI (match_operand:SF 1 "register_operand" "f")))
3528 (clobber (match_scratch:SF 2 "=d"))]
3529 "TARGET_HARD_FLOAT && !ISA_HAS_TRUNC_W"
3531 if (mips_nomacro.nesting_level > 0)
3532 return ".set\tmacro\;trunc.w.s %0,%1,%2\;.set\tnomacro";
3534 return "trunc.w.s %0,%1,%2";
3536 [(set_attr "type" "fcvt")
3537 (set_attr "mode" "SF")
3538 (set_attr "cnv_mode" "S2I")
3539 (set_attr "insn_count" "9")])
3542 (define_insn "fix_truncdfdi2"
3543 [(set (match_operand:DI 0 "register_operand" "=f")
3544 (fix:DI (match_operand:DF 1 "register_operand" "f")))]
3545 "TARGET_HARD_FLOAT && TARGET_FLOAT64 && TARGET_DOUBLE_FLOAT"
3547 [(set_attr "type" "fcvt")
3548 (set_attr "mode" "DF")
3549 (set_attr "cnv_mode" "D2I")])
3552 (define_insn "fix_truncsfdi2"
3553 [(set (match_operand:DI 0 "register_operand" "=f")
3554 (fix:DI (match_operand:SF 1 "register_operand" "f")))]
3555 "TARGET_HARD_FLOAT && TARGET_FLOAT64 && TARGET_DOUBLE_FLOAT"
3557 [(set_attr "type" "fcvt")
3558 (set_attr "mode" "SF")
3559 (set_attr "cnv_mode" "S2I")])
3562 (define_insn "floatsidf2"
3563 [(set (match_operand:DF 0 "register_operand" "=f")
3564 (float:DF (match_operand:SI 1 "register_operand" "f")))]
3565 "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
3567 [(set_attr "type" "fcvt")
3568 (set_attr "mode" "DF")
3569 (set_attr "cnv_mode" "I2D")])
3572 (define_insn "floatdidf2"
3573 [(set (match_operand:DF 0 "register_operand" "=f")
3574 (float:DF (match_operand:DI 1 "register_operand" "f")))]
3575 "TARGET_HARD_FLOAT && TARGET_FLOAT64 && TARGET_DOUBLE_FLOAT"
3577 [(set_attr "type" "fcvt")
3578 (set_attr "mode" "DF")
3579 (set_attr "cnv_mode" "I2D")])
3582 (define_insn "floatsisf2"
3583 [(set (match_operand:SF 0 "register_operand" "=f")
3584 (float:SF (match_operand:SI 1 "register_operand" "f")))]
3587 [(set_attr "type" "fcvt")
3588 (set_attr "mode" "SF")
3589 (set_attr "cnv_mode" "I2S")])
3592 (define_insn "floatdisf2"
3593 [(set (match_operand:SF 0 "register_operand" "=f")
3594 (float:SF (match_operand:DI 1 "register_operand" "f")))]
3595 "TARGET_HARD_FLOAT && TARGET_FLOAT64 && TARGET_DOUBLE_FLOAT"
3597 [(set_attr "type" "fcvt")
3598 (set_attr "mode" "SF")
3599 (set_attr "cnv_mode" "I2S")])
3602 (define_expand "fixuns_truncdfsi2"
3603 [(set (match_operand:SI 0 "register_operand")
3604 (unsigned_fix:SI (match_operand:DF 1 "register_operand")))]
3605 "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
3607 rtx reg1 = gen_reg_rtx (DFmode);
3608 rtx reg2 = gen_reg_rtx (DFmode);
3609 rtx reg3 = gen_reg_rtx (SImode);
3610 rtx label1 = gen_label_rtx ();
3611 rtx label2 = gen_label_rtx ();
3613 REAL_VALUE_TYPE offset;
3615 real_2expN (&offset, 31, DFmode);
3617 if (reg1) /* Turn off complaints about unreached code. */
3619 mips_emit_move (reg1, CONST_DOUBLE_FROM_REAL_VALUE (offset, DFmode));
3620 do_pending_stack_adjust ();
3622 test = gen_rtx_GE (VOIDmode, operands[1], reg1);
3623 emit_jump_insn (gen_cbranchdf4 (test, operands[1], reg1, label1));
3625 emit_insn (gen_fix_truncdfsi2 (operands[0], operands[1]));
3626 emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx,
3627 gen_rtx_LABEL_REF (VOIDmode, label2)));
3630 emit_label (label1);
3631 mips_emit_move (reg2, gen_rtx_MINUS (DFmode, operands[1], reg1));
3632 mips_emit_move (reg3, GEN_INT (trunc_int_for_mode
3633 (BITMASK_HIGH, SImode)));
3635 emit_insn (gen_fix_truncdfsi2 (operands[0], reg2));
3636 emit_insn (gen_iorsi3 (operands[0], operands[0], reg3));
3638 emit_label (label2);
3640 /* Allow REG_NOTES to be set on last insn (labels don't have enough
3641 fields, and can't be used for REG_NOTES anyway). */
3642 emit_use (stack_pointer_rtx);
3648 (define_expand "fixuns_truncdfdi2"
3649 [(set (match_operand:DI 0 "register_operand")
3650 (unsigned_fix:DI (match_operand:DF 1 "register_operand")))]
3651 "TARGET_HARD_FLOAT && TARGET_64BIT && TARGET_DOUBLE_FLOAT"
3653 rtx reg1 = gen_reg_rtx (DFmode);
3654 rtx reg2 = gen_reg_rtx (DFmode);
3655 rtx reg3 = gen_reg_rtx (DImode);
3656 rtx label1 = gen_label_rtx ();
3657 rtx label2 = gen_label_rtx ();
3659 REAL_VALUE_TYPE offset;
3661 real_2expN (&offset, 63, DFmode);
3663 mips_emit_move (reg1, CONST_DOUBLE_FROM_REAL_VALUE (offset, DFmode));
3664 do_pending_stack_adjust ();
3666 test = gen_rtx_GE (VOIDmode, operands[1], reg1);
3667 emit_jump_insn (gen_cbranchdf4 (test, operands[1], reg1, label1));
3669 emit_insn (gen_fix_truncdfdi2 (operands[0], operands[1]));
3670 emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx,
3671 gen_rtx_LABEL_REF (VOIDmode, label2)));
3674 emit_label (label1);
3675 mips_emit_move (reg2, gen_rtx_MINUS (DFmode, operands[1], reg1));
3676 mips_emit_move (reg3, GEN_INT (BITMASK_HIGH));
3677 emit_insn (gen_ashldi3 (reg3, reg3, GEN_INT (32)));
3679 emit_insn (gen_fix_truncdfdi2 (operands[0], reg2));
3680 emit_insn (gen_iordi3 (operands[0], operands[0], reg3));
3682 emit_label (label2);
3684 /* Allow REG_NOTES to be set on last insn (labels don't have enough
3685 fields, and can't be used for REG_NOTES anyway). */
3686 emit_use (stack_pointer_rtx);
3691 (define_expand "fixuns_truncsfsi2"
3692 [(set (match_operand:SI 0 "register_operand")
3693 (unsigned_fix:SI (match_operand:SF 1 "register_operand")))]
3696 rtx reg1 = gen_reg_rtx (SFmode);
3697 rtx reg2 = gen_reg_rtx (SFmode);
3698 rtx reg3 = gen_reg_rtx (SImode);
3699 rtx label1 = gen_label_rtx ();
3700 rtx label2 = gen_label_rtx ();
3702 REAL_VALUE_TYPE offset;
3704 real_2expN (&offset, 31, SFmode);
3706 mips_emit_move (reg1, CONST_DOUBLE_FROM_REAL_VALUE (offset, SFmode));
3707 do_pending_stack_adjust ();
3709 test = gen_rtx_GE (VOIDmode, operands[1], reg1);
3710 emit_jump_insn (gen_cbranchsf4 (test, operands[1], reg1, label1));
3712 emit_insn (gen_fix_truncsfsi2 (operands[0], operands[1]));
3713 emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx,
3714 gen_rtx_LABEL_REF (VOIDmode, label2)));
3717 emit_label (label1);
3718 mips_emit_move (reg2, gen_rtx_MINUS (SFmode, operands[1], reg1));
3719 mips_emit_move (reg3, GEN_INT (trunc_int_for_mode
3720 (BITMASK_HIGH, SImode)));
3722 emit_insn (gen_fix_truncsfsi2 (operands[0], reg2));
3723 emit_insn (gen_iorsi3 (operands[0], operands[0], reg3));
3725 emit_label (label2);
3727 /* Allow REG_NOTES to be set on last insn (labels don't have enough
3728 fields, and can't be used for REG_NOTES anyway). */
3729 emit_use (stack_pointer_rtx);
3734 (define_expand "fixuns_truncsfdi2"
3735 [(set (match_operand:DI 0 "register_operand")
3736 (unsigned_fix:DI (match_operand:SF 1 "register_operand")))]
3737 "TARGET_HARD_FLOAT && TARGET_64BIT && TARGET_DOUBLE_FLOAT"
3739 rtx reg1 = gen_reg_rtx (SFmode);
3740 rtx reg2 = gen_reg_rtx (SFmode);
3741 rtx reg3 = gen_reg_rtx (DImode);
3742 rtx label1 = gen_label_rtx ();
3743 rtx label2 = gen_label_rtx ();
3745 REAL_VALUE_TYPE offset;
3747 real_2expN (&offset, 63, SFmode);
3749 mips_emit_move (reg1, CONST_DOUBLE_FROM_REAL_VALUE (offset, SFmode));
3750 do_pending_stack_adjust ();
3752 test = gen_rtx_GE (VOIDmode, operands[1], reg1);
3753 emit_jump_insn (gen_cbranchsf4 (test, operands[1], reg1, label1));
3755 emit_insn (gen_fix_truncsfdi2 (operands[0], operands[1]));
3756 emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx,
3757 gen_rtx_LABEL_REF (VOIDmode, label2)));
3760 emit_label (label1);
3761 mips_emit_move (reg2, gen_rtx_MINUS (SFmode, operands[1], reg1));
3762 mips_emit_move (reg3, GEN_INT (BITMASK_HIGH));
3763 emit_insn (gen_ashldi3 (reg3, reg3, GEN_INT (32)));
3765 emit_insn (gen_fix_truncsfdi2 (operands[0], reg2));
3766 emit_insn (gen_iordi3 (operands[0], operands[0], reg3));
3768 emit_label (label2);
3770 /* Allow REG_NOTES to be set on last insn (labels don't have enough
3771 fields, and can't be used for REG_NOTES anyway). */
3772 emit_use (stack_pointer_rtx);
3777 ;; ....................
3781 ;; ....................
3783 ;; Bit field extract patterns which use lwl/lwr or ldl/ldr.
3785 (define_expand "extvmisalign<mode>"
3786 [(set (match_operand:GPR 0 "register_operand")
3787 (sign_extract:GPR (match_operand:BLK 1 "memory_operand")
3788 (match_operand 2 "const_int_operand")
3789 (match_operand 3 "const_int_operand")))]
3792 if (mips_expand_ext_as_unaligned_load (operands[0], operands[1],
3793 INTVAL (operands[2]),
3794 INTVAL (operands[3]),
3795 /*unsigned=*/ false))
3801 (define_expand "extv<mode>"
3802 [(set (match_operand:GPR 0 "register_operand")
3803 (sign_extract:GPR (match_operand:GPR 1 "register_operand")
3804 (match_operand 2 "const_int_operand")
3805 (match_operand 3 "const_int_operand")))]
3808 if (UINTVAL (operands[2]) > 32)
3812 (define_insn "*extv<mode>"
3813 [(set (match_operand:GPR 0 "register_operand" "=d")
3814 (sign_extract:GPR (match_operand:GPR 1 "register_operand" "d")
3815 (match_operand 2 "const_int_operand" "")
3816 (match_operand 3 "const_int_operand" "")))]
3817 "ISA_HAS_EXTS && UINTVAL (operands[2]) <= 32"
3818 "exts\t%0,%1,%3,%m2"
3819 [(set_attr "type" "arith")
3820 (set_attr "mode" "<MODE>")])
3822 (define_expand "extzvmisalign<mode>"
3823 [(set (match_operand:GPR 0 "register_operand")
3824 (zero_extract:GPR (match_operand:BLK 1 "memory_operand")
3825 (match_operand 2 "const_int_operand")
3826 (match_operand 3 "const_int_operand")))]
3829 if (mips_expand_ext_as_unaligned_load (operands[0], operands[1],
3830 INTVAL (operands[2]),
3831 INTVAL (operands[3]),
3832 /*unsigned=*/ true))
3838 (define_expand "extzv<mode>"
3839 [(set (match_operand:GPR 0 "register_operand")
3840 (zero_extract:GPR (match_operand:GPR 1 "register_operand")
3841 (match_operand 2 "const_int_operand")
3842 (match_operand 3 "const_int_operand")))]
3845 if (!mips_use_ins_ext_p (operands[1], INTVAL (operands[2]),
3846 INTVAL (operands[3])))
3850 (define_insn "*extzv<mode>"
3851 [(set (match_operand:GPR 0 "register_operand" "=d")
3852 (zero_extract:GPR (match_operand:GPR 1 "register_operand" "d")
3853 (match_operand 2 "const_int_operand" "")
3854 (match_operand 3 "const_int_operand" "")))]
3855 "mips_use_ins_ext_p (operands[1], INTVAL (operands[2]),
3856 INTVAL (operands[3]))"
3857 "<d>ext\t%0,%1,%3,%2"
3858 [(set_attr "type" "arith")
3859 (set_attr "mode" "<MODE>")])
3861 (define_insn "*extzv_truncsi_exts"
3862 [(set (match_operand:SI 0 "register_operand" "=d")
3864 (zero_extract:DI (match_operand:DI 1 "register_operand" "d")
3865 (match_operand 2 "const_int_operand" "")
3866 (match_operand 3 "const_int_operand" ""))))]
3867 "ISA_HAS_EXTS && TARGET_64BIT && IN_RANGE (INTVAL (operands[2]), 32, 63)"
3869 [(set_attr "type" "arith")
3870 (set_attr "mode" "SI")])
3873 (define_expand "insvmisalign<mode>"
3874 [(set (zero_extract:GPR (match_operand:BLK 0 "memory_operand")
3875 (match_operand 1 "const_int_operand")
3876 (match_operand 2 "const_int_operand"))
3877 (match_operand:GPR 3 "reg_or_0_operand"))]
3880 if (mips_expand_ins_as_unaligned_store (operands[0], operands[3],
3881 INTVAL (operands[1]),
3882 INTVAL (operands[2])))
3888 (define_expand "insv<mode>"
3889 [(set (zero_extract:GPR (match_operand:GPR 0 "register_operand")
3890 (match_operand 1 "const_int_operand")
3891 (match_operand 2 "const_int_operand"))
3892 (match_operand:GPR 3 "reg_or_0_operand"))]
3895 if (!mips_use_ins_ext_p (operands[0], INTVAL (operands[1]),
3896 INTVAL (operands[2])))
3900 (define_insn "*insv<mode>"
3901 [(set (zero_extract:GPR (match_operand:GPR 0 "register_operand" "+d")
3902 (match_operand:SI 1 "const_int_operand" "")
3903 (match_operand:SI 2 "const_int_operand" ""))
3904 (match_operand:GPR 3 "reg_or_0_operand" "dJ"))]
3905 "mips_use_ins_ext_p (operands[0], INTVAL (operands[1]),
3906 INTVAL (operands[2]))"
3907 "<d>ins\t%0,%z3,%2,%1"
3908 [(set_attr "type" "arith")
3909 (set_attr "mode" "<MODE>")])
3911 ;; Combiner pattern for cins (clear and insert bit field). We can
3912 ;; implement mask-and-shift-left operation with this. Note that if
3913 ;; the upper bit of the mask is set in an SImode operation, the mask
3914 ;; itself will be sign-extended. mask_low_and_shift_len will
3915 ;; therefore be greater than our threshold of 32.
3917 (define_insn "*cins<mode>"
3918 [(set (match_operand:GPR 0 "register_operand" "=d")
3920 (ashift:GPR (match_operand:GPR 1 "register_operand" "d")
3921 (match_operand:GPR 2 "const_int_operand" ""))
3922 (match_operand:GPR 3 "const_int_operand" "")))]
3924 && mask_low_and_shift_p (<MODE>mode, operands[3], operands[2], 32)"
3927 GEN_INT (mask_low_and_shift_len (<MODE>mode, operands[3], operands[2]));
3928 return "cins\t%0,%1,%2,%m3";
3930 [(set_attr "type" "shift")
3931 (set_attr "mode" "<MODE>")])
3933 ;; Unaligned word moves generated by the bit field patterns.
3935 ;; As far as the rtl is concerned, both the left-part and right-part
3936 ;; instructions can access the whole field. However, the real operand
3937 ;; refers to just the first or the last byte (depending on endianness).
3938 ;; We therefore use two memory operands to each instruction, one to
3939 ;; describe the rtl effect and one to use in the assembly output.
3941 ;; Operands 0 and 1 are the rtl-level target and source respectively.
3942 ;; This allows us to use the standard length calculations for the "load"
3943 ;; and "store" type attributes.
3945 (define_insn "mov_<load>l"
3946 [(set (match_operand:GPR 0 "register_operand" "=d")
3947 (unspec:GPR [(match_operand:BLK 1 "memory_operand" "m")
3948 (match_operand:QI 2 "memory_operand" "ZC")]
3950 "!TARGET_MIPS16 && mips_mem_fits_mode_p (<MODE>mode, operands[1])"
3952 [(set_attr "move_type" "load")
3953 (set_attr "mode" "<MODE>")])
3955 (define_insn "mov_<load>r"
3956 [(set (match_operand:GPR 0 "register_operand" "=d")
3957 (unspec:GPR [(match_operand:BLK 1 "memory_operand" "m")
3958 (match_operand:QI 2 "memory_operand" "ZC")
3959 (match_operand:GPR 3 "register_operand" "0")]
3960 UNSPEC_LOAD_RIGHT))]
3961 "!TARGET_MIPS16 && mips_mem_fits_mode_p (<MODE>mode, operands[1])"
3963 [(set_attr "move_type" "load")
3964 (set_attr "mode" "<MODE>")])
3966 (define_insn "mov_<store>l"
3967 [(set (match_operand:BLK 0 "memory_operand" "=m")
3968 (unspec:BLK [(match_operand:GPR 1 "reg_or_0_operand" "dJ")
3969 (match_operand:QI 2 "memory_operand" "ZC")]
3970 UNSPEC_STORE_LEFT))]
3971 "!TARGET_MIPS16 && mips_mem_fits_mode_p (<MODE>mode, operands[0])"
3973 [(set_attr "move_type" "store")
3974 (set_attr "mode" "<MODE>")])
3976 (define_insn "mov_<store>r"
3977 [(set (match_operand:BLK 0 "memory_operand" "+m")
3978 (unspec:BLK [(match_operand:GPR 1 "reg_or_0_operand" "dJ")
3979 (match_operand:QI 2 "memory_operand" "ZC")
3981 UNSPEC_STORE_RIGHT))]
3982 "!TARGET_MIPS16 && mips_mem_fits_mode_p (<MODE>mode, operands[0])"
3984 [(set_attr "move_type" "store")
3985 (set_attr "mode" "<MODE>")])
3987 ;; An instruction to calculate the high part of a 64-bit SYMBOL_ABSOLUTE.
3988 ;; The required value is:
3990 ;; (%highest(op1) << 48) + (%higher(op1) << 32) + (%hi(op1) << 16)
3992 ;; which translates to:
3994 ;; lui op0,%highest(op1)
3995 ;; daddiu op0,op0,%higher(op1)
3997 ;; daddiu op0,op0,%hi(op1)
4000 ;; The split is deferred until after flow2 to allow the peephole2 below
4002 (define_insn_and_split "*lea_high64"
4003 [(set (match_operand:DI 0 "register_operand" "=d")
4004 (high:DI (match_operand:DI 1 "absolute_symbolic_operand" "")))]
4005 "TARGET_EXPLICIT_RELOCS && ABI_HAS_64BIT_SYMBOLS"
4007 "&& epilogue_completed"
4008 [(set (match_dup 0) (high:DI (match_dup 2)))
4009 (set (match_dup 0) (lo_sum:DI (match_dup 0) (match_dup 2)))
4010 (set (match_dup 0) (ashift:DI (match_dup 0) (const_int 16)))
4011 (set (match_dup 0) (lo_sum:DI (match_dup 0) (match_dup 3)))
4012 (set (match_dup 0) (ashift:DI (match_dup 0) (const_int 16)))]
4014 operands[2] = mips_unspec_address (operands[1], SYMBOL_64_HIGH);
4015 operands[3] = mips_unspec_address (operands[1], SYMBOL_64_MID);
4017 [(set_attr "insn_count" "5")])
4019 ;; Use a scratch register to reduce the latency of the above pattern
4020 ;; on superscalar machines. The optimized sequence is:
4022 ;; lui op1,%highest(op2)
4024 ;; daddiu op1,op1,%higher(op2)
4026 ;; daddu op1,op1,op0
4028 [(set (match_operand:DI 1 "d_operand")
4029 (high:DI (match_operand:DI 2 "absolute_symbolic_operand")))
4030 (match_scratch:DI 0 "d")]
4031 "TARGET_EXPLICIT_RELOCS && ABI_HAS_64BIT_SYMBOLS"
4032 [(set (match_dup 1) (high:DI (match_dup 3)))
4033 (set (match_dup 0) (high:DI (match_dup 4)))
4034 (set (match_dup 1) (lo_sum:DI (match_dup 1) (match_dup 3)))
4035 (set (match_dup 1) (ashift:DI (match_dup 1) (const_int 32)))
4036 (set (match_dup 1) (plus:DI (match_dup 1) (match_dup 0)))]
4038 operands[3] = mips_unspec_address (operands[2], SYMBOL_64_HIGH);
4039 operands[4] = mips_unspec_address (operands[2], SYMBOL_64_LOW);
4042 ;; On most targets, the expansion of (lo_sum (high X) X) for a 64-bit
4043 ;; SYMBOL_ABSOLUTE X will take 6 cycles. This next pattern allows combine
4044 ;; to merge the HIGH and LO_SUM parts of a move if the HIGH part is only
4045 ;; used once. We can then use the sequence:
4047 ;; lui op0,%highest(op1)
4049 ;; daddiu op0,op0,%higher(op1)
4050 ;; daddiu op2,op2,%lo(op1)
4052 ;; daddu op0,op0,op2
4054 ;; which takes 4 cycles on most superscalar targets.
4055 (define_insn_and_split "*lea64"
4056 [(set (match_operand:DI 0 "register_operand" "=d")
4057 (match_operand:DI 1 "absolute_symbolic_operand" ""))
4058 (clobber (match_scratch:DI 2 "=&d"))]
4059 "TARGET_EXPLICIT_RELOCS && ABI_HAS_64BIT_SYMBOLS && cse_not_expected"
4061 "&& reload_completed"
4062 [(set (match_dup 0) (high:DI (match_dup 3)))
4063 (set (match_dup 2) (high:DI (match_dup 4)))
4064 (set (match_dup 0) (lo_sum:DI (match_dup 0) (match_dup 3)))
4065 (set (match_dup 2) (lo_sum:DI (match_dup 2) (match_dup 4)))
4066 (set (match_dup 0) (ashift:DI (match_dup 0) (const_int 32)))
4067 (set (match_dup 0) (plus:DI (match_dup 0) (match_dup 2)))]
4069 operands[3] = mips_unspec_address (operands[1], SYMBOL_64_HIGH);
4070 operands[4] = mips_unspec_address (operands[1], SYMBOL_64_LOW);
4072 [(set_attr "insn_count" "6")])
4074 ;; Split HIGHs into:
4079 ;; on MIPS16 targets.
4081 [(set (match_operand:P 0 "d_operand")
4082 (high:P (match_operand:P 1 "symbolic_operand_with_high")))]
4083 "TARGET_MIPS16 && reload_completed"
4084 [(set (match_dup 0) (unspec:P [(match_dup 1)] UNSPEC_UNSHIFTED_HIGH))
4085 (set (match_dup 0) (ashift:P (match_dup 0) (const_int 16)))])
4087 (define_insn "*unshifted_high"
4088 [(set (match_operand:P 0 "d_operand" "=d")
4089 (unspec:P [(match_operand:P 1 "symbolic_operand_with_high")]
4090 UNSPEC_UNSHIFTED_HIGH))]
4093 [(set_attr "extended_mips16" "yes")])
4095 ;; Insns to fetch a symbol from a big GOT.
4097 (define_insn_and_split "*xgot_hi<mode>"
4098 [(set (match_operand:P 0 "register_operand" "=d")
4099 (high:P (match_operand:P 1 "got_disp_operand" "")))]
4100 "TARGET_EXPLICIT_RELOCS && TARGET_XGOT"
4102 "&& reload_completed"
4103 [(set (match_dup 0) (high:P (match_dup 2)))
4104 (set (match_dup 0) (plus:P (match_dup 0) (match_dup 3)))]
4106 operands[2] = mips_unspec_address (operands[1], SYMBOL_GOTOFF_DISP);
4107 operands[3] = pic_offset_table_rtx;
4109 [(set_attr "got" "xgot_high")
4110 (set_attr "mode" "<MODE>")])
4112 (define_insn_and_split "*xgot_lo<mode>"
4113 [(set (match_operand:P 0 "register_operand" "=d")
4114 (lo_sum:P (match_operand:P 1 "register_operand" "d")
4115 (match_operand:P 2 "got_disp_operand" "")))]
4116 "TARGET_EXPLICIT_RELOCS && TARGET_XGOT"
4118 "&& reload_completed"
4120 (unspec:P [(match_dup 1) (match_dup 3)] UNSPEC_LOAD_GOT))]
4121 { operands[3] = mips_unspec_address (operands[2], SYMBOL_GOTOFF_DISP); }
4122 [(set_attr "got" "load")
4123 (set_attr "mode" "<MODE>")])
4125 ;; Insns to fetch a symbol from a normal GOT.
4127 (define_insn_and_split "*got_disp<mode>"
4128 [(set (match_operand:P 0 "register_operand" "=d")
4129 (match_operand:P 1 "got_disp_operand" ""))]
4130 "TARGET_EXPLICIT_RELOCS && !mips_split_p[SYMBOL_GOT_DISP]"
4132 "&& reload_completed"
4133 [(set (match_dup 0) (match_dup 2))]
4134 { operands[2] = mips_got_load (NULL, operands[1], SYMBOL_GOTOFF_DISP); }
4135 [(set_attr "got" "load")
4136 (set_attr "mode" "<MODE>")])
4138 ;; Insns for loading the "page" part of a page/ofst address from the GOT.
4140 (define_insn_and_split "*got_page<mode>"
4141 [(set (match_operand:P 0 "register_operand" "=d")
4142 (high:P (match_operand:P 1 "got_page_ofst_operand" "")))]
4143 "TARGET_EXPLICIT_RELOCS && !mips_split_hi_p[SYMBOL_GOT_PAGE_OFST]"
4145 "&& reload_completed"
4146 [(set (match_dup 0) (match_dup 2))]
4147 { operands[2] = mips_got_load (NULL, operands[1], SYMBOL_GOTOFF_PAGE); }
4148 [(set_attr "got" "load")
4149 (set_attr "mode" "<MODE>")])
4151 ;; Convenience expander that generates the rhs of a load_got<mode> insn.
4152 (define_expand "unspec_got_<mode>"
4153 [(unspec:P [(match_operand:P 0)
4154 (match_operand:P 1)] UNSPEC_LOAD_GOT)])
4156 ;; Lower-level instructions for loading an address from the GOT.
4157 ;; We could use MEMs, but an unspec gives more optimization
4160 (define_insn "load_got<mode>"
4161 [(set (match_operand:P 0 "register_operand" "=d")
4162 (unspec:P [(match_operand:P 1 "register_operand" "d")
4163 (match_operand:P 2 "immediate_operand" "")]
4166 "<load>\t%0,%R2(%1)"
4167 [(set_attr "got" "load")
4168 (set_attr "mode" "<MODE>")])
4170 ;; Instructions for adding the low 16 bits of an address to a register.
4171 ;; Operand 2 is the address: mips_print_operand works out which relocation
4172 ;; should be applied.
4174 (define_insn "*low<mode>"
4175 [(set (match_operand:P 0 "register_operand" "=d")
4176 (lo_sum:P (match_operand:P 1 "register_operand" "d")
4177 (match_operand:P 2 "immediate_operand" "")))]
4179 "<d>addiu\t%0,%1,%R2"
4180 [(set_attr "alu_type" "add")
4181 (set_attr "mode" "<MODE>")])
4183 (define_insn "*low<mode>_mips16"
4184 [(set (match_operand:P 0 "register_operand" "=d")
4185 (lo_sum:P (match_operand:P 1 "register_operand" "0")
4186 (match_operand:P 2 "immediate_operand" "")))]
4189 [(set_attr "alu_type" "add")
4190 (set_attr "mode" "<MODE>")
4191 (set_attr "extended_mips16" "yes")])
4193 ;; Expose MIPS16 uses of the global pointer after reload if the function
4194 ;; is responsible for setting up the register itself.
4196 [(set (match_operand:GPR 0 "d_operand")
4197 (const:GPR (unspec:GPR [(const_int 0)] UNSPEC_GP)))]
4198 "TARGET_MIPS16 && TARGET_USE_GOT && reload_completed"
4199 [(set (match_dup 0) (match_dup 1))]
4200 { operands[1] = pic_offset_table_rtx; })
4202 ;; Allow combine to split complex const_int load sequences, using operand 2
4203 ;; to store the intermediate results. See move_operand for details.
4205 [(set (match_operand:GPR 0 "register_operand")
4206 (match_operand:GPR 1 "splittable_const_int_operand"))
4207 (clobber (match_operand:GPR 2 "register_operand"))]
4211 mips_move_integer (operands[2], operands[0], INTVAL (operands[1]));
4215 ;; Likewise, for symbolic operands.
4217 [(set (match_operand:P 0 "register_operand")
4218 (match_operand:P 1))
4219 (clobber (match_operand:P 2 "register_operand"))]
4220 "mips_split_symbol (operands[2], operands[1], MAX_MACHINE_MODE, NULL)"
4221 [(set (match_dup 0) (match_dup 3))]
4223 mips_split_symbol (operands[2], operands[1],
4224 MAX_MACHINE_MODE, &operands[3]);
4227 ;; 64-bit integer moves
4229 ;; Unlike most other insns, the move insns can't be split with
4230 ;; different predicates, because register spilling and other parts of
4231 ;; the compiler, have memoized the insn number already.
4233 (define_expand "movdi"
4234 [(set (match_operand:DI 0 "")
4235 (match_operand:DI 1 ""))]
4238 if (mips_legitimize_move (DImode, operands[0], operands[1]))
4242 ;; For mips16, we need a special case to handle storing $31 into
4243 ;; memory, since we don't have a constraint to match $31. This
4244 ;; instruction can be generated by save_restore_insns.
4246 (define_insn "*mov<mode>_ra"
4247 [(set (match_operand:GPR 0 "stack_operand" "=m")
4248 (reg:GPR RETURN_ADDR_REGNUM))]
4251 [(set_attr "move_type" "store")
4252 (set_attr "mode" "<MODE>")])
4254 (define_insn "*movdi_32bit"
4255 [(set (match_operand:DI 0 "nonimmediate_operand" "=d,d,d,m,*a,*a,*d,*f,*f,*d,*m,*B*C*D,*B*C*D,*d,*m")
4256 (match_operand:DI 1 "move_operand" "d,i,m,d,*J,*d,*a,*J*d,*m,*f,*f,*d,*m,*B*C*D,*B*C*D"))]
4257 "!TARGET_64BIT && !TARGET_MIPS16
4258 && (register_operand (operands[0], DImode)
4259 || reg_or_0_operand (operands[1], DImode))"
4260 { return mips_output_move (operands[0], operands[1]); }
4261 [(set_attr "move_type" "move,const,load,store,imul,mtlo,mflo,mtc,fpload,mfc,fpstore,mtc,fpload,mfc,fpstore")
4263 (if_then_else (eq_attr "move_type" "imul")
4265 (const_string "DI")))])
4267 (define_insn "*movdi_32bit_mips16"
4268 [(set (match_operand:DI 0 "nonimmediate_operand" "=d,y,d,d,d,d,m,*d")
4269 (match_operand:DI 1 "move_operand" "d,d,y,K,N,m,d,*x"))]
4270 "!TARGET_64BIT && TARGET_MIPS16
4271 && (register_operand (operands[0], DImode)
4272 || register_operand (operands[1], DImode))"
4273 { return mips_output_move (operands[0], operands[1]); }
4274 [(set_attr "move_type" "move,move,move,const,constN,load,store,mflo")
4275 (set_attr "mode" "DI")])
4277 (define_insn "*movdi_64bit"
4278 [(set (match_operand:DI 0 "nonimmediate_operand" "=d,d,e,d,m,*f,*f,*d,*m,*a,*d,*B*C*D,*B*C*D,*d,*m")
4279 (match_operand:DI 1 "move_operand" "d,Yd,Yf,m,dJ,*d*J,*m,*f,*f,*J*d,*a,*d,*m,*B*C*D,*B*C*D"))]
4280 "TARGET_64BIT && !TARGET_MIPS16
4281 && (register_operand (operands[0], DImode)
4282 || reg_or_0_operand (operands[1], DImode))"
4283 { return mips_output_move (operands[0], operands[1]); }
4284 [(set_attr "move_type" "move,const,const,load,store,mtc,fpload,mfc,fpstore,mtlo,mflo,mtc,fpload,mfc,fpstore")
4285 (set_attr "mode" "DI")])
4287 (define_insn "*movdi_64bit_mips16"
4288 [(set (match_operand:DI 0 "nonimmediate_operand" "=d,y,d,d,d,d,d,d,m,*d")
4289 (match_operand:DI 1 "move_operand" "d,d,y,K,N,Yd,kf,m,d,*a"))]
4290 "TARGET_64BIT && TARGET_MIPS16
4291 && (register_operand (operands[0], DImode)
4292 || register_operand (operands[1], DImode))"
4293 { return mips_output_move (operands[0], operands[1]); }
4294 [(set_attr "move_type" "move,move,move,const,constN,const,loadpool,load,store,mflo")
4295 (set_attr "mode" "DI")])
4297 ;; On the mips16, we can split ld $r,N($r) into an add and a load,
4298 ;; when the original load is a 4 byte instruction but the add and the
4299 ;; load are 2 2 byte instructions.
4302 [(set (match_operand:DI 0 "d_operand")
4303 (mem:DI (plus:DI (match_dup 0)
4304 (match_operand:DI 1 "const_int_operand"))))]
4305 "TARGET_64BIT && TARGET_MIPS16 && reload_completed
4306 && !TARGET_DEBUG_D_MODE
4307 && ((INTVAL (operands[1]) < 0
4308 && INTVAL (operands[1]) >= -0x10)
4309 || (INTVAL (operands[1]) >= 32 * 8
4310 && INTVAL (operands[1]) <= 31 * 8 + 0x8)
4311 || (INTVAL (operands[1]) >= 0
4312 && INTVAL (operands[1]) < 32 * 8
4313 && (INTVAL (operands[1]) & 7) != 0))"
4314 [(set (match_dup 0) (plus:DI (match_dup 0) (match_dup 1)))
4315 (set (match_dup 0) (mem:DI (plus:DI (match_dup 0) (match_dup 2))))]
4317 HOST_WIDE_INT val = INTVAL (operands[1]);
4320 operands[2] = const0_rtx;
4321 else if (val >= 32 * 8)
4325 operands[1] = GEN_INT (0x8 + off);
4326 operands[2] = GEN_INT (val - off - 0x8);
4332 operands[1] = GEN_INT (off);
4333 operands[2] = GEN_INT (val - off);
4337 ;; 32-bit Integer moves
4339 ;; Unlike most other insns, the move insns can't be split with
4340 ;; different predicates, because register spilling and other parts of
4341 ;; the compiler, have memoized the insn number already.
4343 (define_expand "mov<mode>"
4344 [(set (match_operand:IMOVE32 0 "")
4345 (match_operand:IMOVE32 1 ""))]
4348 if (mips_legitimize_move (<MODE>mode, operands[0], operands[1]))
4352 ;; The difference between these two is whether or not ints are allowed
4353 ;; in FP registers (off by default, use -mdebugh to enable).
4355 (define_insn "*mov<mode>_internal"
4356 [(set (match_operand:IMOVE32 0 "nonimmediate_operand" "=d,!u,!u,d,e,!u,!ks,d,ZS,ZT,m,*f,*f,*d,*m,*d,*z,*a,*d,*B*C*D,*B*C*D,*d,*m")
4357 (match_operand:IMOVE32 1 "move_operand" "d,J,Udb7,Yd,Yf,ZT,ZS,m,!ks,!u,dJ,*d*J,*m,*f,*f,*z,*d,*J*d,*a,*d,*m,*B*C*D,*B*C*D"))]
4359 && (register_operand (operands[0], <MODE>mode)
4360 || reg_or_0_operand (operands[1], <MODE>mode))"
4361 { return mips_output_move (operands[0], operands[1]); }
4362 [(set_attr "move_type" "move,move,const,const,const,load,load,load,store,store,store,mtc,fpload,mfc,fpstore,mfc,mtc,mtlo,mflo,mtc,fpload,mfc,fpstore")
4363 (set_attr "compression" "all,micromips,micromips,*,*,micromips,micromips,*,micromips,micromips,*,*,*,*,*,*,*,*,*,*,*,*,*")
4364 (set_attr "mode" "SI")])
4366 (define_insn "*mov<mode>_mips16"
4367 [(set (match_operand:IMOVE32 0 "nonimmediate_operand" "=d,y,d,d,d,d,d,d,m,*d")
4368 (match_operand:IMOVE32 1 "move_operand" "d,d,y,K,N,Yd,kf,m,d,*a"))]
4370 && (register_operand (operands[0], <MODE>mode)
4371 || register_operand (operands[1], <MODE>mode))"
4372 { return mips_output_move (operands[0], operands[1]); }
4373 [(set_attr "move_type" "move,move,move,const,constN,const,loadpool,load,store,mflo")
4374 (set_attr "mode" "SI")])
4376 ;; On the mips16, we can split lw $r,N($r) into an add and a load,
4377 ;; when the original load is a 4 byte instruction but the add and the
4378 ;; load are 2 2 byte instructions.
4381 [(set (match_operand:SI 0 "d_operand")
4382 (mem:SI (plus:SI (match_dup 0)
4383 (match_operand:SI 1 "const_int_operand"))))]
4384 "TARGET_MIPS16 && reload_completed && !TARGET_DEBUG_D_MODE
4385 && ((INTVAL (operands[1]) < 0
4386 && INTVAL (operands[1]) >= -0x80)
4387 || (INTVAL (operands[1]) >= 32 * 4
4388 && INTVAL (operands[1]) <= 31 * 4 + 0x7c)
4389 || (INTVAL (operands[1]) >= 0
4390 && INTVAL (operands[1]) < 32 * 4
4391 && (INTVAL (operands[1]) & 3) != 0))"
4392 [(set (match_dup 0) (plus:SI (match_dup 0) (match_dup 1)))
4393 (set (match_dup 0) (mem:SI (plus:SI (match_dup 0) (match_dup 2))))]
4395 HOST_WIDE_INT val = INTVAL (operands[1]);
4398 operands[2] = const0_rtx;
4399 else if (val >= 32 * 4)
4403 operands[1] = GEN_INT (0x7c + off);
4404 operands[2] = GEN_INT (val - off - 0x7c);
4410 operands[1] = GEN_INT (off);
4411 operands[2] = GEN_INT (val - off);
4415 ;; On the mips16, we can split a load of certain constants into a load
4416 ;; and an add. This turns a 4 byte instruction into 2 2 byte
4420 [(set (match_operand:SI 0 "d_operand")
4421 (match_operand:SI 1 "const_int_operand"))]
4422 "TARGET_MIPS16 && reload_completed && !TARGET_DEBUG_D_MODE
4423 && INTVAL (operands[1]) >= 0x100
4424 && INTVAL (operands[1]) <= 0xff + 0x7f"
4425 [(set (match_dup 0) (match_dup 1))
4426 (set (match_dup 0) (plus:SI (match_dup 0) (match_dup 2)))]
4428 int val = INTVAL (operands[1]);
4430 operands[1] = GEN_INT (0xff);
4431 operands[2] = GEN_INT (val - 0xff);
4434 ;; MIPS4 supports loading and storing a floating point register from
4435 ;; the sum of two general registers. We use two versions for each of
4436 ;; these four instructions: one where the two general registers are
4437 ;; SImode, and one where they are DImode. This is because general
4438 ;; registers will be in SImode when they hold 32-bit values, but,
4439 ;; since the 32-bit values are always sign extended, the [ls][wd]xc1
4440 ;; instructions will still work correctly.
4442 ;; ??? Perhaps it would be better to support these instructions by
4443 ;; modifying TARGET_LEGITIMATE_ADDRESS_P and friends. However, since
4444 ;; these instructions can only be used to load and store floating
4445 ;; point registers, that would probably cause trouble in reload.
4447 (define_insn "*<ANYF:loadx>_<P:mode>"
4448 [(set (match_operand:ANYF 0 "register_operand" "=f")
4449 (mem:ANYF (plus:P (match_operand:P 1 "register_operand" "d")
4450 (match_operand:P 2 "register_operand" "d"))))]
4452 "<ANYF:loadx>\t%0,%1(%2)"
4453 [(set_attr "type" "fpidxload")
4454 (set_attr "mode" "<ANYF:UNITMODE>")])
4456 (define_insn "*<ANYF:storex>_<P:mode>"
4457 [(set (mem:ANYF (plus:P (match_operand:P 1 "register_operand" "d")
4458 (match_operand:P 2 "register_operand" "d")))
4459 (match_operand:ANYF 0 "register_operand" "f"))]
4461 "<ANYF:storex>\t%0,%1(%2)"
4462 [(set_attr "type" "fpidxstore")
4463 (set_attr "mode" "<ANYF:UNITMODE>")])
4465 ;; Scaled indexed address load.
4466 ;; Per md.texi, we only need to look for a pattern with multiply in the
4467 ;; address expression, not shift.
4469 (define_insn "*lwxs"
4470 [(set (match_operand:IMOVE32 0 "register_operand" "=d")
4472 (plus:P (mult:P (match_operand:P 1 "register_operand" "d")
4474 (match_operand:P 2 "register_operand" "d"))))]
4477 [(set_attr "type" "load")
4478 (set_attr "mode" "SI")])
4480 ;; 16-bit Integer moves
4482 ;; Unlike most other insns, the move insns can't be split with
4483 ;; different predicates, because register spilling and other parts of
4484 ;; the compiler, have memoized the insn number already.
4485 ;; Unsigned loads are used because LOAD_EXTEND_OP returns ZERO_EXTEND.
4487 (define_expand "movhi"
4488 [(set (match_operand:HI 0 "")
4489 (match_operand:HI 1 ""))]
4492 if (mips_legitimize_move (HImode, operands[0], operands[1]))
4496 (define_insn "*movhi_internal"
4497 [(set (match_operand:HI 0 "nonimmediate_operand" "=d,!u,d,!u,d,ZU,m,*a,*d")
4498 (match_operand:HI 1 "move_operand" "d,J,I,ZU,m,!u,dJ,*d*J,*a"))]
4500 && (register_operand (operands[0], HImode)
4501 || reg_or_0_operand (operands[1], HImode))"
4502 { return mips_output_move (operands[0], operands[1]); }
4503 [(set_attr "move_type" "move,const,const,load,load,store,store,mtlo,mflo")
4504 (set_attr "compression" "all,micromips,*,micromips,*,micromips,*,*,*")
4505 (set_attr "mode" "HI")])
4507 (define_insn "*movhi_mips16"
4508 [(set (match_operand:HI 0 "nonimmediate_operand" "=d,y,d,d,d,d,m,*d")
4509 (match_operand:HI 1 "move_operand" "d,d,y,K,N,m,d,*a"))]
4511 && (register_operand (operands[0], HImode)
4512 || register_operand (operands[1], HImode))"
4513 { return mips_output_move (operands[0], operands[1]); }
4514 [(set_attr "move_type" "move,move,move,const,constN,load,store,mflo")
4515 (set_attr "mode" "HI")])
4517 ;; On the mips16, we can split lh $r,N($r) into an add and a load,
4518 ;; when the original load is a 4 byte instruction but the add and the
4519 ;; load are 2 2 byte instructions.
4522 [(set (match_operand:HI 0 "d_operand")
4523 (mem:HI (plus:SI (match_dup 0)
4524 (match_operand:SI 1 "const_int_operand"))))]
4525 "TARGET_MIPS16 && reload_completed && !TARGET_DEBUG_D_MODE
4526 && ((INTVAL (operands[1]) < 0
4527 && INTVAL (operands[1]) >= -0x80)
4528 || (INTVAL (operands[1]) >= 32 * 2
4529 && INTVAL (operands[1]) <= 31 * 2 + 0x7e)
4530 || (INTVAL (operands[1]) >= 0
4531 && INTVAL (operands[1]) < 32 * 2
4532 && (INTVAL (operands[1]) & 1) != 0))"
4533 [(set (match_dup 0) (plus:SI (match_dup 0) (match_dup 1)))
4534 (set (match_dup 0) (mem:HI (plus:SI (match_dup 0) (match_dup 2))))]
4536 HOST_WIDE_INT val = INTVAL (operands[1]);
4539 operands[2] = const0_rtx;
4540 else if (val >= 32 * 2)
4544 operands[1] = GEN_INT (0x7e + off);
4545 operands[2] = GEN_INT (val - off - 0x7e);
4551 operands[1] = GEN_INT (off);
4552 operands[2] = GEN_INT (val - off);
4556 ;; 8-bit Integer moves
4558 ;; Unlike most other insns, the move insns can't be split with
4559 ;; different predicates, because register spilling and other parts of
4560 ;; the compiler, have memoized the insn number already.
4561 ;; Unsigned loads are used because LOAD_EXTEND_OP returns ZERO_EXTEND.
4563 (define_expand "movqi"
4564 [(set (match_operand:QI 0 "")
4565 (match_operand:QI 1 ""))]
4568 if (mips_legitimize_move (QImode, operands[0], operands[1]))
4572 (define_insn "*movqi_internal"
4573 [(set (match_operand:QI 0 "nonimmediate_operand" "=d,!u,d,!u,d,ZV,m,*a,*d")
4574 (match_operand:QI 1 "move_operand" "d,J,I,ZW,m,!u,dJ,*d*J,*a"))]
4576 && (register_operand (operands[0], QImode)
4577 || reg_or_0_operand (operands[1], QImode))"
4578 { return mips_output_move (operands[0], operands[1]); }
4579 [(set_attr "move_type" "move,const,const,load,load,store,store,mtlo,mflo")
4580 (set_attr "compression" "all,micromips,*,micromips,*,micromips,*,*,*")
4581 (set_attr "mode" "QI")])
4583 (define_insn "*movqi_mips16"
4584 [(set (match_operand:QI 0 "nonimmediate_operand" "=d,y,d,d,d,d,m,*d")
4585 (match_operand:QI 1 "move_operand" "d,d,y,K,N,m,d,*a"))]
4587 && (register_operand (operands[0], QImode)
4588 || register_operand (operands[1], QImode))"
4589 { return mips_output_move (operands[0], operands[1]); }
4590 [(set_attr "move_type" "move,move,move,const,constN,load,store,mflo")
4591 (set_attr "mode" "QI")])
4593 ;; On the mips16, we can split lb $r,N($r) into an add and a load,
4594 ;; when the original load is a 4 byte instruction but the add and the
4595 ;; load are 2 2 byte instructions.
4598 [(set (match_operand:QI 0 "d_operand")
4599 (mem:QI (plus:SI (match_dup 0)
4600 (match_operand:SI 1 "const_int_operand"))))]
4601 "TARGET_MIPS16 && reload_completed && !TARGET_DEBUG_D_MODE
4602 && ((INTVAL (operands[1]) < 0
4603 && INTVAL (operands[1]) >= -0x80)
4604 || (INTVAL (operands[1]) >= 32
4605 && INTVAL (operands[1]) <= 31 + 0x7f))"
4606 [(set (match_dup 0) (plus:SI (match_dup 0) (match_dup 1)))
4607 (set (match_dup 0) (mem:QI (plus:SI (match_dup 0) (match_dup 2))))]
4609 HOST_WIDE_INT val = INTVAL (operands[1]);
4612 operands[2] = const0_rtx;
4615 operands[1] = GEN_INT (0x7f);
4616 operands[2] = GEN_INT (val - 0x7f);
4620 ;; 32-bit floating point moves
4622 (define_expand "movsf"
4623 [(set (match_operand:SF 0 "")
4624 (match_operand:SF 1 ""))]
4627 if (mips_legitimize_move (SFmode, operands[0], operands[1]))
4631 (define_insn "*movsf_hardfloat"
4632 [(set (match_operand:SF 0 "nonimmediate_operand" "=f,f,f,m,m,*f,*d,*d,*d,*m")
4633 (match_operand:SF 1 "move_operand" "f,G,m,f,G,*d,*f,*G*d,*m,*d"))]
4635 && (register_operand (operands[0], SFmode)
4636 || reg_or_0_operand (operands[1], SFmode))"
4637 { return mips_output_move (operands[0], operands[1]); }
4638 [(set_attr "move_type" "fmove,mtc,fpload,fpstore,store,mtc,mfc,move,load,store")
4639 (set_attr "mode" "SF")])
4641 (define_insn "*movsf_softfloat"
4642 [(set (match_operand:SF 0 "nonimmediate_operand" "=d,d,m")
4643 (match_operand:SF 1 "move_operand" "Gd,m,d"))]
4644 "TARGET_SOFT_FLOAT && !TARGET_MIPS16
4645 && (register_operand (operands[0], SFmode)
4646 || reg_or_0_operand (operands[1], SFmode))"
4647 { return mips_output_move (operands[0], operands[1]); }
4648 [(set_attr "move_type" "move,load,store")
4649 (set_attr "mode" "SF")])
4651 (define_insn "*movsf_mips16"
4652 [(set (match_operand:SF 0 "nonimmediate_operand" "=d,y,d,d,m")
4653 (match_operand:SF 1 "move_operand" "d,d,y,m,d"))]
4655 && (register_operand (operands[0], SFmode)
4656 || register_operand (operands[1], SFmode))"
4657 { return mips_output_move (operands[0], operands[1]); }
4658 [(set_attr "move_type" "move,move,move,load,store")
4659 (set_attr "mode" "SF")])
4661 ;; 64-bit floating point moves
4663 (define_expand "movdf"
4664 [(set (match_operand:DF 0 "")
4665 (match_operand:DF 1 ""))]
4668 if (mips_legitimize_move (DFmode, operands[0], operands[1]))
4672 (define_insn "*movdf_hardfloat"
4673 [(set (match_operand:DF 0 "nonimmediate_operand" "=f,f,f,m,m,*f,*d,*d,*d,*m")
4674 (match_operand:DF 1 "move_operand" "f,G,m,f,G,*d,*f,*d*G,*m,*d"))]
4675 "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT
4676 && (register_operand (operands[0], DFmode)
4677 || reg_or_0_operand (operands[1], DFmode))"
4678 { return mips_output_move (operands[0], operands[1]); }
4679 [(set_attr "move_type" "fmove,mtc,fpload,fpstore,store,mtc,mfc,move,load,store")
4680 (set_attr "mode" "DF")])
4682 (define_insn "*movdf_softfloat"
4683 [(set (match_operand:DF 0 "nonimmediate_operand" "=d,d,m")
4684 (match_operand:DF 1 "move_operand" "dG,m,dG"))]
4685 "(TARGET_SOFT_FLOAT || TARGET_SINGLE_FLOAT) && !TARGET_MIPS16
4686 && (register_operand (operands[0], DFmode)
4687 || reg_or_0_operand (operands[1], DFmode))"
4688 { return mips_output_move (operands[0], operands[1]); }
4689 [(set_attr "move_type" "move,load,store")
4690 (set_attr "mode" "DF")])
4692 (define_insn "*movdf_mips16"
4693 [(set (match_operand:DF 0 "nonimmediate_operand" "=d,y,d,d,m")
4694 (match_operand:DF 1 "move_operand" "d,d,y,m,d"))]
4696 && (register_operand (operands[0], DFmode)
4697 || register_operand (operands[1], DFmode))"
4698 { return mips_output_move (operands[0], operands[1]); }
4699 [(set_attr "move_type" "move,move,move,load,store")
4700 (set_attr "mode" "DF")])
4702 ;; 128-bit integer moves
4704 (define_expand "movti"
4705 [(set (match_operand:TI 0)
4706 (match_operand:TI 1))]
4709 if (mips_legitimize_move (TImode, operands[0], operands[1]))
4713 (define_insn "*movti"
4714 [(set (match_operand:TI 0 "nonimmediate_operand" "=d,d,d,m,*a,*a,*d")
4715 (match_operand:TI 1 "move_operand" "d,i,m,dJ,*J,*d,*a"))]
4718 && (register_operand (operands[0], TImode)
4719 || reg_or_0_operand (operands[1], TImode))"
4720 { return mips_output_move (operands[0], operands[1]); }
4721 [(set_attr "move_type" "move,const,load,store,imul,mtlo,mflo")
4723 (if_then_else (eq_attr "move_type" "imul")
4725 (const_string "TI")))])
4727 (define_insn "*movti_mips16"
4728 [(set (match_operand:TI 0 "nonimmediate_operand" "=d,y,d,d,d,d,m,*d")
4729 (match_operand:TI 1 "move_operand" "d,d,y,K,N,m,d,*a"))]
4732 && (register_operand (operands[0], TImode)
4733 || register_operand (operands[1], TImode))"
4735 [(set_attr "move_type" "move,move,move,const,constN,load,store,mflo")
4736 (set_attr "mode" "TI")])
4738 ;; 128-bit floating point moves
4740 (define_expand "movtf"
4741 [(set (match_operand:TF 0)
4742 (match_operand:TF 1))]
4745 if (mips_legitimize_move (TFmode, operands[0], operands[1]))
4749 ;; This pattern handles both hard- and soft-float cases.
4750 (define_insn "*movtf"
4751 [(set (match_operand:TF 0 "nonimmediate_operand" "=d,d,m,f,d,f,m")
4752 (match_operand:TF 1 "move_operand" "dG,m,dG,dG,f,m,f"))]
4755 && (register_operand (operands[0], TFmode)
4756 || reg_or_0_operand (operands[1], TFmode))"
4758 [(set_attr "move_type" "move,load,store,mtc,mfc,fpload,fpstore")
4759 (set_attr "mode" "TF")])
4761 (define_insn "*movtf_mips16"
4762 [(set (match_operand:TF 0 "nonimmediate_operand" "=d,y,d,d,m")
4763 (match_operand:TF 1 "move_operand" "d,d,y,m,d"))]
4766 && (register_operand (operands[0], TFmode)
4767 || register_operand (operands[1], TFmode))"
4769 [(set_attr "move_type" "move,move,move,load,store")
4770 (set_attr "mode" "TF")])
4773 [(set (match_operand:MOVE64 0 "nonimmediate_operand")
4774 (match_operand:MOVE64 1 "move_operand"))]
4775 "reload_completed && mips_split_move_insn_p (operands[0], operands[1], insn)"
4778 mips_split_move_insn (operands[0], operands[1], curr_insn);
4783 [(set (match_operand:MOVE128 0 "nonimmediate_operand")
4784 (match_operand:MOVE128 1 "move_operand"))]
4785 "reload_completed && mips_split_move_insn_p (operands[0], operands[1], insn)"
4788 mips_split_move_insn (operands[0], operands[1], curr_insn);
4792 ;; When generating mips16 code, split moves of negative constants into
4793 ;; a positive "li" followed by a negation.
4795 [(set (match_operand 0 "d_operand")
4796 (match_operand 1 "const_int_operand"))]
4797 "TARGET_MIPS16 && reload_completed && INTVAL (operands[1]) < 0"
4801 (neg:SI (match_dup 2)))]
4803 operands[2] = gen_lowpart (SImode, operands[0]);
4804 operands[3] = GEN_INT (-INTVAL (operands[1]));
4807 ;; 64-bit paired-single floating point moves
4809 (define_expand "movv2sf"
4810 [(set (match_operand:V2SF 0)
4811 (match_operand:V2SF 1))]
4812 "TARGET_HARD_FLOAT && TARGET_PAIRED_SINGLE_FLOAT"
4814 if (mips_legitimize_move (V2SFmode, operands[0], operands[1]))
4818 (define_insn "*movv2sf"
4819 [(set (match_operand:V2SF 0 "nonimmediate_operand" "=f,f,f,m,m,*f,*d,*d,*d,*m")
4820 (match_operand:V2SF 1 "move_operand" "f,YG,m,f,YG,*d,*f,*d*YG,*m,*d"))]
4822 && TARGET_PAIRED_SINGLE_FLOAT
4823 && (register_operand (operands[0], V2SFmode)
4824 || reg_or_0_operand (operands[1], V2SFmode))"
4825 { return mips_output_move (operands[0], operands[1]); }
4826 [(set_attr "move_type" "fmove,mtc,fpload,fpstore,store,mtc,mfc,move,load,store")
4827 (set_attr "mode" "DF")])
4829 ;; Extract the high part of a HI/LO value. See mips_hard_regno_mode_ok_p
4830 ;; for the reason why we can't just use (reg:GPR HI_REGNUM).
4832 ;; When generating VR4120 or VR4130 code, we use MACCHI and DMACCHI
4833 ;; instead of MFHI. This avoids both the normal MIPS III hi/lo hazards
4834 ;; and the errata related to -mfix-vr4130.
4835 (define_insn "mfhi<GPR:mode>_<HILO:mode>"
4836 [(set (match_operand:GPR 0 "register_operand" "=d")
4837 (unspec:GPR [(match_operand:HILO 1 "hilo_operand" "x")]
4840 { return ISA_HAS_MACCHI ? "<GPR:d>macchi\t%0,%.,%." : "mfhi\t%0"; }
4841 [(set_attr "type" "mfhi")
4842 (set_attr "mode" "<GPR:MODE>")])
4844 ;; Set the high part of a HI/LO value, given that the low part has
4845 ;; already been set. See mips_hard_regno_mode_ok_p for the reason
4846 ;; why we can't just use (reg:GPR HI_REGNUM).
4847 (define_insn "mthi<GPR:mode>_<HILO:mode>"
4848 [(set (match_operand:HILO 0 "register_operand" "=x")
4849 (unspec:HILO [(match_operand:GPR 1 "reg_or_0_operand" "dJ")
4850 (match_operand:GPR 2 "register_operand" "l")]
4854 [(set_attr "type" "mthi")
4855 (set_attr "mode" "SI")])
4857 ;; Emit a doubleword move in which exactly one of the operands is
4858 ;; a floating-point register. We can't just emit two normal moves
4859 ;; because of the constraints imposed by the FPU register model;
4860 ;; see mips_cannot_change_mode_class for details. Instead, we keep
4861 ;; the FPR whole and use special patterns to refer to each word of
4862 ;; the other operand.
4864 (define_expand "move_doubleword_fpr<mode>"
4865 [(set (match_operand:SPLITF 0)
4866 (match_operand:SPLITF 1))]
4869 if (FP_REG_RTX_P (operands[0]))
4871 rtx low = mips_subword (operands[1], 0);
4872 rtx high = mips_subword (operands[1], 1);
4873 emit_insn (gen_load_low<mode> (operands[0], low));
4874 if (TARGET_FLOAT64 && !TARGET_64BIT)
4875 emit_insn (gen_mthc1<mode> (operands[0], high, operands[0]));
4877 emit_insn (gen_load_high<mode> (operands[0], high, operands[0]));
4881 rtx low = mips_subword (operands[0], 0);
4882 rtx high = mips_subword (operands[0], 1);
4883 emit_insn (gen_store_word<mode> (low, operands[1], const0_rtx));
4884 if (TARGET_FLOAT64 && !TARGET_64BIT)
4885 emit_insn (gen_mfhc1<mode> (high, operands[1]));
4887 emit_insn (gen_store_word<mode> (high, operands[1], const1_rtx));
4892 ;; Load the low word of operand 0 with operand 1.
4893 (define_insn "load_low<mode>"
4894 [(set (match_operand:SPLITF 0 "register_operand" "=f,f")
4895 (unspec:SPLITF [(match_operand:<HALFMODE> 1 "general_operand" "dJ,m")]
4899 operands[0] = mips_subword (operands[0], 0);
4900 return mips_output_move (operands[0], operands[1]);
4902 [(set_attr "move_type" "mtc,fpload")
4903 (set_attr "mode" "<HALFMODE>")])
4905 ;; Load the high word of operand 0 from operand 1, preserving the value
4907 (define_insn "load_high<mode>"
4908 [(set (match_operand:SPLITF 0 "register_operand" "=f,f")
4909 (unspec:SPLITF [(match_operand:<HALFMODE> 1 "general_operand" "dJ,m")
4910 (match_operand:SPLITF 2 "register_operand" "0,0")]
4914 operands[0] = mips_subword (operands[0], 1);
4915 return mips_output_move (operands[0], operands[1]);
4917 [(set_attr "move_type" "mtc,fpload")
4918 (set_attr "mode" "<HALFMODE>")])
4920 ;; Store one word of operand 1 in operand 0. Operand 2 is 1 to store the
4921 ;; high word and 0 to store the low word.
4922 (define_insn "store_word<mode>"
4923 [(set (match_operand:<HALFMODE> 0 "nonimmediate_operand" "=d,m")
4924 (unspec:<HALFMODE> [(match_operand:SPLITF 1 "register_operand" "f,f")
4925 (match_operand 2 "const_int_operand")]
4926 UNSPEC_STORE_WORD))]
4929 operands[1] = mips_subword (operands[1], INTVAL (operands[2]));
4930 return mips_output_move (operands[0], operands[1]);
4932 [(set_attr "move_type" "mfc,fpstore")
4933 (set_attr "mode" "<HALFMODE>")])
4935 ;; Move operand 1 to the high word of operand 0 using mthc1, preserving the
4936 ;; value in the low word.
4937 (define_insn "mthc1<mode>"
4938 [(set (match_operand:SPLITF 0 "register_operand" "=f")
4939 (unspec:SPLITF [(match_operand:<HALFMODE> 1 "reg_or_0_operand" "dJ")
4940 (match_operand:SPLITF 2 "register_operand" "0")]
4942 "TARGET_HARD_FLOAT && ISA_HAS_MXHC1"
4944 [(set_attr "move_type" "mtc")
4945 (set_attr "mode" "<HALFMODE>")])
4947 ;; Move high word of operand 1 to operand 0 using mfhc1.
4948 (define_insn "mfhc1<mode>"
4949 [(set (match_operand:<HALFMODE> 0 "register_operand" "=d")
4950 (unspec:<HALFMODE> [(match_operand:SPLITF 1 "register_operand" "f")]
4952 "TARGET_HARD_FLOAT && ISA_HAS_MXHC1"
4954 [(set_attr "move_type" "mfc")
4955 (set_attr "mode" "<HALFMODE>")])
4957 ;; Move a constant that satisfies CONST_GP_P into operand 0.
4958 (define_expand "load_const_gp_<mode>"
4959 [(set (match_operand:P 0 "register_operand" "=d")
4960 (const:P (unspec:P [(const_int 0)] UNSPEC_GP)))])
4962 ;; Insn to initialize $gp for n32/n64 abicalls. Operand 0 is the offset
4963 ;; of _gp from the start of this function. Operand 1 is the incoming
4964 ;; function address.
4965 (define_insn_and_split "loadgp_newabi_<mode>"
4966 [(set (match_operand:P 0 "register_operand" "=&d")
4967 (unspec:P [(match_operand:P 1)
4968 (match_operand:P 2 "register_operand" "d")]
4970 "mips_current_loadgp_style () == LOADGP_NEWABI"
4971 { return mips_must_initialize_gp_p () ? "#" : ""; }
4972 "&& mips_must_initialize_gp_p ()"
4973 [(set (match_dup 0) (match_dup 3))
4974 (set (match_dup 0) (match_dup 4))
4975 (set (match_dup 0) (match_dup 5))]
4977 operands[3] = gen_rtx_HIGH (Pmode, operands[1]);
4978 operands[4] = gen_rtx_PLUS (Pmode, operands[0], operands[2]);
4979 operands[5] = gen_rtx_LO_SUM (Pmode, operands[0], operands[1]);
4981 [(set_attr "type" "ghost")])
4983 ;; Likewise, for -mno-shared code. Operand 0 is the __gnu_local_gp symbol.
4984 (define_insn_and_split "loadgp_absolute_<mode>"
4985 [(set (match_operand:P 0 "register_operand" "=d")
4986 (unspec:P [(match_operand:P 1)] UNSPEC_LOADGP))]
4987 "mips_current_loadgp_style () == LOADGP_ABSOLUTE"
4988 { return mips_must_initialize_gp_p () ? "#" : ""; }
4989 "&& mips_must_initialize_gp_p ()"
4992 mips_emit_move (operands[0], operands[1]);
4995 [(set_attr "type" "ghost")])
4997 ;; This blockage instruction prevents the gp load from being
4998 ;; scheduled after an implicit use of gp. It also prevents
4999 ;; the load from being deleted as dead.
5000 (define_insn "loadgp_blockage"
5001 [(unspec_volatile [(reg:SI 28)] UNSPEC_BLOCKAGE)]
5004 [(set_attr "type" "ghost")])
5006 ;; Initialize $gp for RTP PIC. Operand 0 is the __GOTT_BASE__ symbol
5007 ;; and operand 1 is the __GOTT_INDEX__ symbol.
5008 (define_insn_and_split "loadgp_rtp_<mode>"
5009 [(set (match_operand:P 0 "register_operand" "=d")
5010 (unspec:P [(match_operand:P 1 "symbol_ref_operand")
5011 (match_operand:P 2 "symbol_ref_operand")]
5013 "mips_current_loadgp_style () == LOADGP_RTP"
5014 { return mips_must_initialize_gp_p () ? "#" : ""; }
5015 "&& mips_must_initialize_gp_p ()"
5016 [(set (match_dup 0) (high:P (match_dup 3)))
5017 (set (match_dup 0) (unspec:P [(match_dup 0)
5018 (match_dup 3)] UNSPEC_LOAD_GOT))
5019 (set (match_dup 0) (unspec:P [(match_dup 0)
5020 (match_dup 4)] UNSPEC_LOAD_GOT))]
5022 operands[3] = mips_unspec_address (operands[1], SYMBOL_ABSOLUTE);
5023 operands[4] = mips_unspec_address (operands[2], SYMBOL_HALF);
5025 [(set_attr "type" "ghost")])
5027 ;; Initialize the global pointer for MIPS16 code. Operand 0 is the
5028 ;; global pointer and operand 1 is the MIPS16 register that holds
5029 ;; the required value.
5030 (define_insn_and_split "copygp_mips16_<mode>"
5031 [(set (match_operand:P 0 "register_operand" "=y")
5032 (unspec:P [(match_operand:P 1 "register_operand" "d")]
5035 { return mips_must_initialize_gp_p () ? "#" : ""; }
5036 "&& mips_must_initialize_gp_p ()"
5037 [(set (match_dup 0) (match_dup 1))]
5039 [(set_attr "type" "ghost")])
5041 ;; A placeholder for where the cprestore instruction should go,
5042 ;; if we decide we need one. Operand 0 and operand 1 are as for
5043 ;; "cprestore". Operand 2 is a register that holds the gp value.
5045 ;; The "cprestore" pattern requires operand 2 to be pic_offset_table_rtx,
5046 ;; otherwise any register that holds the correct value will do.
5047 (define_insn_and_split "potential_cprestore_<mode>"
5048 [(set (match_operand:P 0 "cprestore_save_slot_operand" "=X,X")
5049 (unspec:P [(match_operand:P 1 "const_int_operand" "I,i")
5050 (match_operand:P 2 "register_operand" "d,d")]
5051 UNSPEC_POTENTIAL_CPRESTORE))
5052 (clobber (match_operand:P 3 "scratch_operand" "=X,&d"))]
5053 "!TARGET_CPRESTORE_DIRECTIVE || operands[2] == pic_offset_table_rtx"
5054 { return mips_must_initialize_gp_p () ? "#" : ""; }
5055 "mips_must_initialize_gp_p ()"
5058 mips_save_gp_to_cprestore_slot (operands[0], operands[1],
5059 operands[2], operands[3]);
5062 [(set_attr "type" "ghost")])
5064 ;; Emit a .cprestore directive, which normally expands to a single store
5065 ;; instruction. Operand 0 is a (possibly illegitimate) sp-based MEM
5066 ;; for the cprestore slot. Operand 1 is the offset of the slot from
5067 ;; the stack pointer. (This is redundant with operand 0, but it makes
5068 ;; things a little simpler.)
5069 (define_insn "cprestore_<mode>"
5070 [(set (match_operand:P 0 "cprestore_save_slot_operand" "=X,X")
5071 (unspec:P [(match_operand:P 1 "const_int_operand" "I,i")
5074 "TARGET_CPRESTORE_DIRECTIVE"
5076 if (mips_nomacro.nesting_level > 0 && which_alternative == 1)
5077 return ".set\tmacro\;.cprestore\t%1\;.set\tnomacro";
5079 return ".cprestore\t%1";
5081 [(set_attr "type" "store")
5082 (set_attr "insn_count" "1,3")])
5084 (define_insn "use_cprestore_<mode>"
5085 [(set (reg:P CPRESTORE_SLOT_REGNUM)
5086 (match_operand:P 0 "cprestore_load_slot_operand"))]
5089 [(set_attr "type" "ghost")])
5091 ;; Expand in-line code to clear the instruction cache between operand[0] and
5093 (define_expand "clear_cache"
5094 [(match_operand 0 "pmode_register_operand")
5095 (match_operand 1 "pmode_register_operand")]
5101 mips_expand_synci_loop (operands[0], operands[1]);
5102 emit_insn (gen_sync ());
5103 emit_insn (PMODE_INSN (gen_clear_hazard, ()));
5105 else if (mips_cache_flush_func && mips_cache_flush_func[0])
5107 rtx len = gen_reg_rtx (Pmode);
5108 emit_insn (gen_sub3_insn (len, operands[1], operands[0]));
5109 MIPS_ICACHE_SYNC (operands[0], len);
5115 [(unspec_volatile [(const_int 0)] UNSPEC_SYNC)]
5117 { return mips_output_sync (); })
5119 (define_insn "synci"
5120 [(unspec_volatile [(match_operand 0 "pmode_register_operand" "d")]
5125 (define_insn "rdhwr_synci_step_<mode>"
5126 [(set (match_operand:P 0 "register_operand" "=d")
5127 (unspec_volatile [(const_int 1)]
5132 (define_insn "clear_hazard_<mode>"
5133 [(unspec_volatile [(const_int 0)] UNSPEC_CLEAR_HAZARD)
5134 (clobber (reg:P RETURN_ADDR_REGNUM))]
5137 return "%(%<bal\t1f\n"
5139 "1:\t<d>addiu\t$31,$31,12\n"
5143 [(set_attr "insn_count" "5")])
5145 ;; Cache operations for R4000-style caches.
5146 (define_insn "mips_cache"
5147 [(set (mem:BLK (scratch))
5148 (unspec:BLK [(match_operand:SI 0 "const_int_operand")
5149 (match_operand:QI 1 "address_operand" "p")]
5150 UNSPEC_MIPS_CACHE))]
5154 ;; Similar, but with the operands hard-coded to an R10K cache barrier
5155 ;; operation. We keep the pattern distinct so that we can identify
5156 ;; cache operations inserted by -mr10k-cache-barrier=, and so that
5157 ;; the operation is never inserted into a delay slot.
5158 (define_insn "r10k_cache_barrier"
5159 [(set (mem:BLK (scratch))
5160 (unspec:BLK [(const_int 0)] UNSPEC_R10K_CACHE_BARRIER))]
5163 [(set_attr "can_delay" "no")])
5165 ;; Block moves, see mips.c for more details.
5166 ;; Argument 0 is the destination
5167 ;; Argument 1 is the source
5168 ;; Argument 2 is the length
5169 ;; Argument 3 is the alignment
5171 (define_expand "movmemsi"
5172 [(parallel [(set (match_operand:BLK 0 "general_operand")
5173 (match_operand:BLK 1 "general_operand"))
5174 (use (match_operand:SI 2 ""))
5175 (use (match_operand:SI 3 "const_int_operand"))])]
5176 "!TARGET_MIPS16 && !TARGET_MEMCPY"
5178 if (mips_expand_block_move (operands[0], operands[1], operands[2]))
5185 ;; ....................
5189 ;; ....................
5191 (define_expand "<optab><mode>3"
5192 [(set (match_operand:GPR 0 "register_operand")
5193 (any_shift:GPR (match_operand:GPR 1 "register_operand")
5194 (match_operand:SI 2 "arith_operand")))]
5197 /* On the mips16, a shift of more than 8 is a four byte instruction,
5198 so, for a shift between 8 and 16, it is just as fast to do two
5199 shifts of 8 or less. If there is a lot of shifting going on, we
5200 may win in CSE. Otherwise combine will put the shifts back
5201 together again. This can be called by mips_function_arg, so we must
5202 be careful not to allocate a new register if we've reached the
5206 && CONST_INT_P (operands[2])
5207 && INTVAL (operands[2]) > 8
5208 && INTVAL (operands[2]) <= 16
5209 && !reload_in_progress
5210 && !reload_completed)
5212 rtx temp = gen_reg_rtx (<MODE>mode);
5214 emit_insn (gen_<optab><mode>3 (temp, operands[1], GEN_INT (8)));
5215 emit_insn (gen_<optab><mode>3 (operands[0], temp,
5216 GEN_INT (INTVAL (operands[2]) - 8)));
5221 (define_insn "*<optab><mode>3"
5222 [(set (match_operand:GPR 0 "register_operand" "=!u,d")
5223 (any_shift:GPR (match_operand:GPR 1 "register_operand" "!u,d")
5224 (match_operand:SI 2 "arith_operand" "Uib3,dI")))]
5227 if (CONST_INT_P (operands[2]))
5228 operands[2] = GEN_INT (INTVAL (operands[2])
5229 & (GET_MODE_BITSIZE (<MODE>mode) - 1));
5231 return "<d><insn>\t%0,%1,%2";
5233 [(set_attr "type" "shift")
5234 (set_attr "compression" "<shift_compression>,none")
5235 (set_attr "mode" "<MODE>")])
5237 (define_insn "*<optab>si3_extend"
5238 [(set (match_operand:DI 0 "register_operand" "=d")
5240 (any_shift:SI (match_operand:SI 1 "register_operand" "d")
5241 (match_operand:SI 2 "arith_operand" "dI"))))]
5242 "TARGET_64BIT && !TARGET_MIPS16"
5244 if (CONST_INT_P (operands[2]))
5245 operands[2] = GEN_INT (INTVAL (operands[2]) & 0x1f);
5247 return "<insn>\t%0,%1,%2";
5249 [(set_attr "type" "shift")
5250 (set_attr "mode" "SI")])
5252 (define_insn "*<optab>si3_mips16"
5253 [(set (match_operand:SI 0 "register_operand" "=d,d,d")
5254 (any_shift:SI (match_operand:SI 1 "register_operand" "0,d,d")
5255 (match_operand:SI 2 "arith_operand" "d,Uib3,I")))]
5258 if (which_alternative == 0)
5259 return "<insn>\t%0,%2";
5261 operands[2] = GEN_INT (INTVAL (operands[2]) & 0x1f);
5262 return "<insn>\t%0,%1,%2";
5264 [(set_attr "type" "shift")
5265 (set_attr "mode" "SI")
5266 (set_attr "extended_mips16" "no,no,yes")])
5268 ;; We need separate DImode MIPS16 patterns because of the irregularity
5270 (define_insn "*ashldi3_mips16"
5271 [(set (match_operand:DI 0 "register_operand" "=d,d,d")
5272 (ashift:DI (match_operand:DI 1 "register_operand" "0,d,d")
5273 (match_operand:SI 2 "arith_operand" "d,Uib3,I")))]
5274 "TARGET_64BIT && TARGET_MIPS16"
5276 if (which_alternative == 0)
5277 return "dsll\t%0,%2";
5279 operands[2] = GEN_INT (INTVAL (operands[2]) & 0x3f);
5280 return "dsll\t%0,%1,%2";
5282 [(set_attr "type" "shift")
5283 (set_attr "mode" "DI")
5284 (set_attr "extended_mips16" "no,no,yes")])
5286 (define_insn "*ashrdi3_mips16"
5287 [(set (match_operand:DI 0 "register_operand" "=d,d,d")
5288 (ashiftrt:DI (match_operand:DI 1 "register_operand" "0,0,0")
5289 (match_operand:SI 2 "arith_operand" "d,Uib3,I")))]
5290 "TARGET_64BIT && TARGET_MIPS16"
5292 if (CONST_INT_P (operands[2]))
5293 operands[2] = GEN_INT (INTVAL (operands[2]) & 0x3f);
5295 return "dsra\t%0,%2";
5297 [(set_attr "type" "shift")
5298 (set_attr "mode" "DI")
5299 (set_attr "extended_mips16" "no,no,yes")])
5301 (define_insn "*lshrdi3_mips16"
5302 [(set (match_operand:DI 0 "register_operand" "=d,d,d")
5303 (lshiftrt:DI (match_operand:DI 1 "register_operand" "0,0,0")
5304 (match_operand:SI 2 "arith_operand" "d,Uib3,I")))]
5305 "TARGET_64BIT && TARGET_MIPS16"
5307 if (CONST_INT_P (operands[2]))
5308 operands[2] = GEN_INT (INTVAL (operands[2]) & 0x3f);
5310 return "dsrl\t%0,%2";
5312 [(set_attr "type" "shift")
5313 (set_attr "mode" "DI")
5314 (set_attr "extended_mips16" "no,no,yes")])
5316 ;; On the mips16, we can split a 4 byte shift into 2 2 byte shifts.
5319 [(set (match_operand:GPR 0 "d_operand")
5320 (any_shift:GPR (match_operand:GPR 1 "d_operand")
5321 (match_operand:GPR 2 "const_int_operand")))]
5322 "TARGET_MIPS16 && reload_completed && !TARGET_DEBUG_D_MODE
5323 && INTVAL (operands[2]) > 8
5324 && INTVAL (operands[2]) <= 16"
5325 [(set (match_dup 0) (any_shift:GPR (match_dup 1) (const_int 8)))
5326 (set (match_dup 0) (any_shift:GPR (match_dup 0) (match_dup 2)))]
5327 { operands[2] = GEN_INT (INTVAL (operands[2]) - 8); })
5329 ;; If we load a byte on the mips16 as a bitfield, the resulting
5330 ;; sequence of instructions is too complicated for combine, because it
5331 ;; involves four instructions: a load, a shift, a constant load into a
5332 ;; register, and an and (the key problem here is that the mips16 does
5333 ;; not have and immediate). We recognize a shift of a load in order
5334 ;; to make it simple enough for combine to understand.
5336 ;; The instruction count here is the worst case.
5337 (define_insn_and_split ""
5338 [(set (match_operand:SI 0 "register_operand" "=d")
5339 (lshiftrt:SI (match_operand:SI 1 "memory_operand" "m")
5340 (match_operand:SI 2 "immediate_operand" "I")))]
5344 [(set (match_dup 0) (match_dup 1))
5345 (set (match_dup 0) (lshiftrt:SI (match_dup 0) (match_dup 2)))]
5347 [(set_attr "type" "load")
5348 (set_attr "mode" "SI")
5349 (set (attr "insn_count")
5350 (symbol_ref "mips_load_store_insns (operands[1], insn) + 2"))])
5352 (define_insn "rotr<mode>3"
5353 [(set (match_operand:GPR 0 "register_operand" "=d")
5354 (rotatert:GPR (match_operand:GPR 1 "register_operand" "d")
5355 (match_operand:SI 2 "arith_operand" "dI")))]
5358 if (CONST_INT_P (operands[2]))
5359 gcc_assert (INTVAL (operands[2]) >= 0
5360 && INTVAL (operands[2]) < GET_MODE_BITSIZE (<MODE>mode));
5362 return "<d>ror\t%0,%1,%2";
5364 [(set_attr "type" "shift")
5365 (set_attr "mode" "<MODE>")])
5367 (define_insn "bswaphi2"
5368 [(set (match_operand:HI 0 "register_operand" "=d")
5369 (bswap:HI (match_operand:HI 1 "register_operand" "d")))]
5372 [(set_attr "type" "shift")])
5374 (define_insn_and_split "bswapsi2"
5375 [(set (match_operand:SI 0 "register_operand" "=d")
5376 (bswap:SI (match_operand:SI 1 "register_operand" "d")))]
5377 "ISA_HAS_WSBH && ISA_HAS_ROR"
5380 [(set (match_dup 0) (unspec:SI [(match_dup 1)] UNSPEC_WSBH))
5381 (set (match_dup 0) (rotatert:SI (match_dup 0) (const_int 16)))]
5383 [(set_attr "insn_count" "2")])
5385 (define_insn_and_split "bswapdi2"
5386 [(set (match_operand:DI 0 "register_operand" "=d")
5387 (bswap:DI (match_operand:DI 1 "register_operand" "d")))]
5388 "TARGET_64BIT && ISA_HAS_WSBH"
5391 [(set (match_dup 0) (unspec:DI [(match_dup 1)] UNSPEC_DSBH))
5392 (set (match_dup 0) (unspec:DI [(match_dup 0)] UNSPEC_DSHD))]
5394 [(set_attr "insn_count" "2")])
5397 [(set (match_operand:SI 0 "register_operand" "=d")
5398 (unspec:SI [(match_operand:SI 1 "register_operand" "d")] UNSPEC_WSBH))]
5401 [(set_attr "type" "shift")])
5404 [(set (match_operand:DI 0 "register_operand" "=d")
5405 (unspec:DI [(match_operand:DI 1 "register_operand" "d")] UNSPEC_DSBH))]
5406 "TARGET_64BIT && ISA_HAS_WSBH"
5408 [(set_attr "type" "shift")])
5411 [(set (match_operand:DI 0 "register_operand" "=d")
5412 (unspec:DI [(match_operand:DI 1 "register_operand" "d")] UNSPEC_DSHD))]
5413 "TARGET_64BIT && ISA_HAS_WSBH"
5415 [(set_attr "type" "shift")])
5418 ;; ....................
5420 ;; CONDITIONAL BRANCHES
5422 ;; ....................
5424 ;; Conditional branches on floating-point equality tests.
5426 (define_insn "*branch_fp"
5429 (match_operator 1 "equality_operator"
5430 [(match_operand:CC 2 "register_operand" "z")
5432 (label_ref (match_operand 0 "" ""))
5436 return mips_output_conditional_branch (insn, operands,
5437 MIPS_BRANCH ("b%F1", "%Z2%0"),
5438 MIPS_BRANCH ("b%W1", "%Z2%0"));
5440 [(set_attr "type" "branch")])
5442 (define_insn "*branch_fp_inverted"
5445 (match_operator 1 "equality_operator"
5446 [(match_operand:CC 2 "register_operand" "z")
5449 (label_ref (match_operand 0 "" ""))))]
5452 return mips_output_conditional_branch (insn, operands,
5453 MIPS_BRANCH ("b%W1", "%Z2%0"),
5454 MIPS_BRANCH ("b%F1", "%Z2%0"));
5456 [(set_attr "type" "branch")])
5458 ;; Conditional branches on ordered comparisons with zero.
5460 (define_insn "*branch_order<mode>"
5463 (match_operator 1 "order_operator"
5464 [(match_operand:GPR 2 "register_operand" "d")
5466 (label_ref (match_operand 0 "" ""))
5469 { return mips_output_order_conditional_branch (insn, operands, false); }
5470 [(set_attr "type" "branch")])
5472 (define_insn "*branch_order<mode>_inverted"
5475 (match_operator 1 "order_operator"
5476 [(match_operand:GPR 2 "register_operand" "d")
5479 (label_ref (match_operand 0 "" ""))))]
5481 { return mips_output_order_conditional_branch (insn, operands, true); }
5482 [(set_attr "type" "branch")])
5484 ;; Conditional branch on equality comparison.
5486 (define_insn "*branch_equality<mode>"
5489 (match_operator 1 "equality_operator"
5490 [(match_operand:GPR 2 "register_operand" "d")
5491 (match_operand:GPR 3 "reg_or_0_operand" "dJ")])
5492 (label_ref (match_operand 0 "" ""))
5496 /* For a simple BNEZ or BEQZ microMIPS branch. */
5497 if (TARGET_MICROMIPS
5498 && operands[3] == const0_rtx
5499 && get_attr_length (insn) <= 8)
5500 return mips_output_conditional_branch (insn, operands,
5502 "%*b%N1z%:\t%2,%0");
5504 return mips_output_conditional_branch (insn, operands,
5505 MIPS_BRANCH ("b%C1", "%2,%z3,%0"),
5506 MIPS_BRANCH ("b%N1", "%2,%z3,%0"));
5508 [(set_attr "type" "branch")])
5510 (define_insn "*branch_equality<mode>_inverted"
5513 (match_operator 1 "equality_operator"
5514 [(match_operand:GPR 2 "register_operand" "d")
5515 (match_operand:GPR 3 "reg_or_0_operand" "dJ")])
5517 (label_ref (match_operand 0 "" ""))))]
5520 /* For a simple BNEZ or BEQZ microMIPS branch. */
5521 if (TARGET_MICROMIPS
5522 && operands[3] == const0_rtx
5523 && get_attr_length (insn) <= 8)
5524 return mips_output_conditional_branch (insn, operands,
5526 "%*b%C0z%:\t%2,%1");
5528 return mips_output_conditional_branch (insn, operands,
5529 MIPS_BRANCH ("b%N1", "%2,%z3,%0"),
5530 MIPS_BRANCH ("b%C1", "%2,%z3,%0"));
5532 [(set_attr "type" "branch")])
5536 (define_insn "*branch_equality<mode>_mips16"
5539 (match_operator 1 "equality_operator"
5540 [(match_operand:GPR 2 "register_operand" "d,t")
5542 (label_ref (match_operand 0 "" ""))
5548 [(set_attr "type" "branch")])
5550 (define_insn "*branch_equality<mode>_mips16_inverted"
5553 (match_operator 1 "equality_operator"
5554 [(match_operand:GPR 2 "register_operand" "d,t")
5557 (label_ref (match_operand 0 "" ""))))]
5562 [(set_attr "type" "branch")])
5564 (define_expand "cbranch<mode>4"
5566 (if_then_else (match_operator 0 "comparison_operator"
5567 [(match_operand:GPR 1 "register_operand")
5568 (match_operand:GPR 2 "nonmemory_operand")])
5569 (label_ref (match_operand 3 ""))
5573 mips_expand_conditional_branch (operands);
5577 (define_expand "cbranch<mode>4"
5579 (if_then_else (match_operator 0 "comparison_operator"
5580 [(match_operand:SCALARF 1 "register_operand")
5581 (match_operand:SCALARF 2 "register_operand")])
5582 (label_ref (match_operand 3 ""))
5586 mips_expand_conditional_branch (operands);
5590 ;; Used to implement built-in functions.
5591 (define_expand "condjump"
5593 (if_then_else (match_operand 0)
5594 (label_ref (match_operand 1))
5597 ;; Branch if bit is set/clear.
5599 (define_insn "*branch_bit<bbv><mode>"
5602 (equality_op (zero_extract:GPR
5603 (match_operand:GPR 1 "register_operand" "d")
5605 (match_operand 2 "const_int_operand" ""))
5607 (label_ref (match_operand 0 ""))
5609 "ISA_HAS_BBIT && UINTVAL (operands[2]) < GET_MODE_BITSIZE (<MODE>mode)"
5612 mips_output_conditional_branch (insn, operands,
5613 MIPS_BRANCH ("bbit<bbv>", "%1,%2,%0"),
5614 MIPS_BRANCH ("bbit<bbinv>", "%1,%2,%0"));
5616 [(set_attr "type" "branch")
5617 (set_attr "branch_likely" "no")])
5619 (define_insn "*branch_bit<bbv><mode>_inverted"
5622 (equality_op (zero_extract:GPR
5623 (match_operand:GPR 1 "register_operand" "d")
5625 (match_operand 2 "const_int_operand" ""))
5628 (label_ref (match_operand 0 ""))))]
5629 "ISA_HAS_BBIT && UINTVAL (operands[2]) < GET_MODE_BITSIZE (<MODE>mode)"
5632 mips_output_conditional_branch (insn, operands,
5633 MIPS_BRANCH ("bbit<bbinv>", "%1,%2,%0"),
5634 MIPS_BRANCH ("bbit<bbv>", "%1,%2,%0"));
5636 [(set_attr "type" "branch")
5637 (set_attr "branch_likely" "no")])
5640 ;; ....................
5642 ;; SETTING A REGISTER FROM A COMPARISON
5644 ;; ....................
5646 ;; Destination is always set in SI mode.
5648 (define_expand "cstore<mode>4"
5649 [(set (match_operand:SI 0 "register_operand")
5650 (match_operator:SI 1 "mips_cstore_operator"
5651 [(match_operand:GPR 2 "register_operand")
5652 (match_operand:GPR 3 "nonmemory_operand")]))]
5655 mips_expand_scc (operands);
5659 (define_insn "*seq_zero_<GPR:mode><GPR2:mode>"
5660 [(set (match_operand:GPR2 0 "register_operand" "=d")
5661 (eq:GPR2 (match_operand:GPR 1 "register_operand" "d")
5663 "!TARGET_MIPS16 && !ISA_HAS_SEQ_SNE"
5665 [(set_attr "type" "slt")
5666 (set_attr "mode" "<GPR:MODE>")])
5668 (define_insn "*seq_zero_<GPR:mode><GPR2:mode>_mips16"
5669 [(set (match_operand:GPR2 0 "register_operand" "=t")
5670 (eq:GPR2 (match_operand:GPR 1 "register_operand" "d")
5672 "TARGET_MIPS16 && !ISA_HAS_SEQ_SNE"
5674 [(set_attr "type" "slt")
5675 (set_attr "mode" "<GPR:MODE>")])
5677 ;; Generate sltiu unless using seq results in better code.
5678 (define_insn "*seq_<GPR:mode><GPR2:mode>_seq"
5679 [(set (match_operand:GPR2 0 "register_operand" "=d,d,d")
5680 (eq:GPR2 (match_operand:GPR 1 "register_operand" "%d,d,d")
5681 (match_operand:GPR 2 "reg_imm10_operand" "d,J,YB")))]
5687 [(set_attr "type" "slt")
5688 (set_attr "mode" "<GPR:MODE>")])
5690 (define_insn "*sne_zero_<GPR:mode><GPR2:mode>"
5691 [(set (match_operand:GPR2 0 "register_operand" "=d")
5692 (ne:GPR2 (match_operand:GPR 1 "register_operand" "d")
5694 "!TARGET_MIPS16 && !ISA_HAS_SEQ_SNE"
5696 [(set_attr "type" "slt")
5697 (set_attr "mode" "<GPR:MODE>")])
5699 ;; Generate sltu unless using sne results in better code.
5700 (define_insn "*sne_<GPR:mode><GPR2:mode>_sne"
5701 [(set (match_operand:GPR2 0 "register_operand" "=d,d,d")
5702 (ne:GPR2 (match_operand:GPR 1 "register_operand" "%d,d,d")
5703 (match_operand:GPR 2 "reg_imm10_operand" "d,J,YB")))]
5709 [(set_attr "type" "slt")
5710 (set_attr "mode" "<GPR:MODE>")])
5712 (define_insn "*sgt<u>_<GPR:mode><GPR2:mode>"
5713 [(set (match_operand:GPR2 0 "register_operand" "=d")
5714 (any_gt:GPR2 (match_operand:GPR 1 "register_operand" "d")
5715 (match_operand:GPR 2 "reg_or_0_operand" "dJ")))]
5718 [(set_attr "type" "slt")
5719 (set_attr "mode" "<GPR:MODE>")])
5721 (define_insn "*sgt<u>_<GPR:mode><GPR2:mode>_mips16"
5722 [(set (match_operand:GPR2 0 "register_operand" "=t")
5723 (any_gt:GPR2 (match_operand:GPR 1 "register_operand" "d")
5724 (match_operand:GPR 2 "register_operand" "d")))]
5727 [(set_attr "type" "slt")
5728 (set_attr "mode" "<GPR:MODE>")])
5730 (define_insn "*sge<u>_<GPR:mode><GPR2:mode>"
5731 [(set (match_operand:GPR2 0 "register_operand" "=d")
5732 (any_ge:GPR2 (match_operand:GPR 1 "register_operand" "d")
5736 [(set_attr "type" "slt")
5737 (set_attr "mode" "<GPR:MODE>")])
5739 (define_insn "*slt<u>_<GPR:mode><GPR2:mode>"
5740 [(set (match_operand:GPR2 0 "register_operand" "=d")
5741 (any_lt:GPR2 (match_operand:GPR 1 "register_operand" "d")
5742 (match_operand:GPR 2 "arith_operand" "dI")))]
5745 [(set_attr "type" "slt")
5746 (set_attr "mode" "<GPR:MODE>")])
5748 (define_insn "*slt<u>_<GPR:mode><GPR2:mode>_mips16"
5749 [(set (match_operand:GPR2 0 "register_operand" "=t,t,t")
5750 (any_lt:GPR2 (match_operand:GPR 1 "register_operand" "d,d,d")
5751 (match_operand:GPR 2 "arith_operand" "d,Uub8,I")))]
5754 [(set_attr "type" "slt")
5755 (set_attr "mode" "<GPR:MODE>")
5756 (set_attr "extended_mips16" "no,no,yes")])
5758 (define_insn "*sle<u>_<GPR:mode><GPR2:mode>"
5759 [(set (match_operand:GPR2 0 "register_operand" "=d")
5760 (any_le:GPR2 (match_operand:GPR 1 "register_operand" "d")
5761 (match_operand:GPR 2 "sle_operand" "")))]
5764 operands[2] = GEN_INT (INTVAL (operands[2]) + 1);
5765 return "slt<u>\t%0,%1,%2";
5767 [(set_attr "type" "slt")
5768 (set_attr "mode" "<GPR:MODE>")])
5770 (define_insn "*sle<u>_<GPR:mode><GPR2:mode>_mips16"
5771 [(set (match_operand:GPR2 0 "register_operand" "=t,t")
5772 (any_le:GPR2 (match_operand:GPR 1 "register_operand" "d,d")
5773 (match_operand:GPR 2 "sle_operand" "Udb8,i")))]
5776 operands[2] = GEN_INT (INTVAL (operands[2]) + 1);
5777 return "slt<u>\t%1,%2";
5779 [(set_attr "type" "slt")
5780 (set_attr "mode" "<GPR:MODE>")
5781 (set_attr "extended_mips16" "no,yes")])
5784 ;; ....................
5786 ;; FLOATING POINT COMPARISONS
5788 ;; ....................
5790 (define_insn "s<code>_<mode>"
5791 [(set (match_operand:CC 0 "register_operand" "=z")
5792 (fcond:CC (match_operand:SCALARF 1 "register_operand" "f")
5793 (match_operand:SCALARF 2 "register_operand" "f")))]
5795 "c.<fcond>.<fmt>\t%Z0%1,%2"
5796 [(set_attr "type" "fcmp")
5797 (set_attr "mode" "FPSW")])
5799 (define_insn "s<code>_<mode>"
5800 [(set (match_operand:CC 0 "register_operand" "=z")
5801 (swapped_fcond:CC (match_operand:SCALARF 1 "register_operand" "f")
5802 (match_operand:SCALARF 2 "register_operand" "f")))]
5804 "c.<swapped_fcond>.<fmt>\t%Z0%2,%1"
5805 [(set_attr "type" "fcmp")
5806 (set_attr "mode" "FPSW")])
5809 ;; ....................
5811 ;; UNCONDITIONAL BRANCHES
5813 ;; ....................
5815 ;; Unconditional branches.
5817 (define_expand "jump"
5819 (label_ref (match_operand 0)))])
5821 (define_insn "*jump_absolute"
5823 (label_ref (match_operand 0)))]
5824 "!TARGET_MIPS16 && TARGET_ABSOLUTE_JUMPS"
5826 /* Use a branch for microMIPS. The assembler will choose
5827 a 16-bit branch, a 32-bit branch, or a 32-bit jump. */
5828 if (TARGET_MICROMIPS && !TARGET_ABICALLS_PIC2)
5829 return "%*b\t%l0%/";
5831 return MIPS_ABSOLUTE_JUMP ("%*j\t%l0%/");
5833 [(set_attr "type" "jump")])
5835 (define_insn "*jump_pic"
5837 (label_ref (match_operand 0)))]
5838 "!TARGET_MIPS16 && !TARGET_ABSOLUTE_JUMPS"
5840 if (get_attr_length (insn) <= 8)
5841 return "%*b\t%l0%/";
5844 mips_output_load_label (operands[0]);
5845 return "%*jr\t%@%/%]";
5848 [(set_attr "type" "branch")])
5850 ;; We need a different insn for the mips16, because a mips16 branch
5851 ;; does not have a delay slot.
5853 (define_insn "*jump_mips16"
5855 (label_ref (match_operand 0 "" "")))]
5858 [(set_attr "type" "branch")
5859 (set (attr "length")
5860 ;; This calculation is like the normal branch one, but the
5861 ;; range of the unextended instruction is [-0x800, 0x7fe] rather
5862 ;; than [-0x100, 0xfe]. This translates to a range of:
5864 ;; [-(0x800 - sizeof (branch)), 0x7fe]
5865 ;; == [-0x7fe, 0x7fe]
5867 ;; from the shorten_branches reference address. Long-branch
5868 ;; sequences will replace this one, so the minimum length
5869 ;; is one instruction shorter than for conditional branches.
5870 (cond [(and (le (minus (match_dup 0) (pc)) (const_int 2046))
5871 (le (minus (pc) (match_dup 0)) (const_int 2046)))
5873 (and (le (minus (match_dup 0) (pc)) (const_int 65534))
5874 (le (minus (pc) (match_dup 0)) (const_int 65532)))
5876 (and (match_test "TARGET_ABICALLS")
5877 (not (match_test "TARGET_ABSOLUTE_ABICALLS")))
5879 (match_test "Pmode == SImode")
5881 ] (const_int 22)))])
5883 (define_expand "indirect_jump"
5884 [(set (pc) (match_operand 0 "register_operand"))]
5887 operands[0] = force_reg (Pmode, operands[0]);
5888 emit_jump_insn (PMODE_INSN (gen_indirect_jump, (operands[0])));
5892 (define_insn "indirect_jump_<mode>"
5893 [(set (pc) (match_operand:P 0 "register_operand" "d"))]
5896 if (TARGET_MICROMIPS)
5897 return "%*jr%:\t%0";
5901 [(set_attr "type" "jump")
5902 (set_attr "mode" "none")])
5904 ;; A combined jump-and-move instruction, used for MIPS16 long-branch
5905 ;; sequences. Having a dedicated pattern is more convenient than
5906 ;; creating a SEQUENCE for this special case.
5907 (define_insn "indirect_jump_and_restore_<mode>"
5908 [(set (pc) (match_operand:P 1 "register_operand" "d"))
5909 (set (match_operand:P 0 "register_operand" "=d")
5910 (match_operand:P 2 "register_operand" "y"))]
5912 "%(%<jr\t%1\;move\t%0,%2%>%)"
5913 [(set_attr "type" "multi")
5914 (set_attr "extended_mips16" "yes")])
5916 (define_expand "tablejump"
5918 (match_operand 0 "register_operand"))
5919 (use (label_ref (match_operand 1 "")))]
5920 "!TARGET_MIPS16_SHORT_JUMP_TABLES"
5923 operands[0] = expand_binop (Pmode, add_optab, operands[0],
5924 pic_offset_table_rtx, 0, 0, OPTAB_WIDEN);
5925 else if (TARGET_RTP_PIC)
5927 /* When generating RTP PIC, we use case table entries that are relative
5928 to the start of the function. Add the function's address to the
5930 rtx start = get_hard_reg_initial_val (Pmode, PIC_FUNCTION_ADDR_REGNUM);
5931 operands[0] = expand_binop (ptr_mode, add_optab, operands[0],
5932 start, 0, 0, OPTAB_WIDEN);
5935 emit_jump_insn (PMODE_INSN (gen_tablejump, (operands[0], operands[1])));
5939 (define_insn "tablejump_<mode>"
5941 (match_operand:P 0 "register_operand" "d"))
5942 (use (label_ref (match_operand 1 "" "")))]
5945 if (TARGET_MICROMIPS)
5946 return "%*jr%:\t%0";
5950 [(set_attr "type" "jump")
5951 (set_attr "mode" "none")])
5953 ;; For MIPS16, we don't know whether a given jump table will use short or
5954 ;; word-sized offsets until late in compilation, when we are able to determine
5955 ;; the sizes of the insns which comprise the containing function. This
5956 ;; necessitates the use of the casesi rather than the tablejump pattern, since
5957 ;; the latter tries to calculate the index of the offset to jump through early
5958 ;; in compilation, i.e. at expand time, when nothing is known about the
5959 ;; eventual function layout.
5961 (define_expand "casesi"
5962 [(match_operand:SI 0 "register_operand" "") ; index to jump on
5963 (match_operand:SI 1 "const_int_operand" "") ; lower bound
5964 (match_operand:SI 2 "const_int_operand" "") ; total range
5965 (match_operand 3 "" "") ; table label
5966 (match_operand 4 "" "")] ; out of range label
5967 "TARGET_MIPS16_SHORT_JUMP_TABLES"
5969 if (operands[1] != const0_rtx)
5971 rtx reg = gen_reg_rtx (SImode);
5972 rtx offset = gen_int_mode (-INTVAL (operands[1]), SImode);
5974 if (!arith_operand (offset, SImode))
5975 offset = force_reg (SImode, offset);
5977 emit_insn (gen_addsi3 (reg, operands[0], offset));
5981 if (!arith_operand (operands[0], SImode))
5982 operands[0] = force_reg (SImode, operands[0]);
5984 operands[2] = GEN_INT (INTVAL (operands[2]) + 1);
5986 emit_jump_insn (PMODE_INSN (gen_casesi_internal_mips16,
5987 (operands[0], operands[2],
5988 operands[3], operands[4])));
5993 (define_insn "casesi_internal_mips16_<mode>"
5996 (leu (match_operand:SI 0 "register_operand" "d")
5997 (match_operand:SI 1 "arith_operand" "dI"))
6000 (label_ref (match_operand 2 "" ""))]
6001 UNSPEC_CASESI_DISPATCH)
6002 (label_ref (match_operand 3 "" ""))))
6003 (clobber (match_scratch:P 4 "=d"))
6004 (clobber (match_scratch:P 5 "=d"))
6005 (clobber (reg:SI MIPS16_T_REGNUM))]
6006 "TARGET_MIPS16_SHORT_JUMP_TABLES"
6008 rtx diff_vec = PATTERN (NEXT_INSN (operands[2]));
6010 gcc_assert (GET_CODE (diff_vec) == ADDR_DIFF_VEC);
6012 output_asm_insn ("sltu\t%0, %1", operands);
6013 output_asm_insn ("bteqz\t%3", operands);
6015 switch (GET_MODE (diff_vec))
6018 output_asm_insn ("sll\t%5, %0, 1", operands);
6019 output_asm_insn ("la\t%4, %2", operands);
6020 output_asm_insn ("<d>addu\t%5, %4, %5", operands);
6021 output_asm_insn ("lh\t%5, 0(%5)", operands);
6025 output_asm_insn ("sll\t%5, %0, 2", operands);
6026 output_asm_insn ("la\t%4, %2", operands);
6027 output_asm_insn ("<d>addu\t%5, %4, %5", operands);
6028 output_asm_insn ("lw\t%5, 0(%5)", operands);
6035 output_asm_insn ("addu\t%4, %4, %5", operands);
6039 [(set_attr "insn_count" "16")])
6041 ;; For TARGET_USE_GOT, we save the gp in the jmp_buf as well.
6042 ;; While it is possible to either pull it off the stack (in the
6043 ;; o32 case) or recalculate it given t9 and our target label,
6044 ;; it takes 3 or 4 insns to do so.
6046 (define_expand "builtin_setjmp_setup"
6047 [(use (match_operand 0 "register_operand"))]
6052 addr = plus_constant (Pmode, operands[0], GET_MODE_SIZE (Pmode) * 3);
6053 mips_emit_move (gen_rtx_MEM (Pmode, addr), pic_offset_table_rtx);
6057 ;; Restore the gp that we saved above. Despite the earlier comment, it seems
6058 ;; that older code did recalculate the gp from $25. Continue to jump through
6059 ;; $25 for compatibility (we lose nothing by doing so).
6061 (define_expand "builtin_longjmp"
6062 [(use (match_operand 0 "register_operand"))]
6065 /* The elements of the buffer are, in order: */
6066 int W = GET_MODE_SIZE (Pmode);
6067 rtx fp = gen_rtx_MEM (Pmode, operands[0]);
6068 rtx lab = gen_rtx_MEM (Pmode, plus_constant (Pmode, operands[0], 1*W));
6069 rtx stack = gen_rtx_MEM (Pmode, plus_constant (Pmode, operands[0], 2*W));
6070 rtx gpv = gen_rtx_MEM (Pmode, plus_constant (Pmode, operands[0], 3*W));
6071 rtx pv = gen_rtx_REG (Pmode, PIC_FUNCTION_ADDR_REGNUM);
6072 /* Use gen_raw_REG to avoid being given pic_offset_table_rtx.
6073 The target is bound to be using $28 as the global pointer
6074 but the current function might not be. */
6075 rtx gp = gen_raw_REG (Pmode, GLOBAL_POINTER_REGNUM);
6077 /* This bit is similar to expand_builtin_longjmp except that it
6078 restores $gp as well. */
6079 mips_emit_move (hard_frame_pointer_rtx, fp);
6080 mips_emit_move (pv, lab);
6081 emit_stack_restore (SAVE_NONLOCAL, stack);
6082 mips_emit_move (gp, gpv);
6083 emit_use (hard_frame_pointer_rtx);
6084 emit_use (stack_pointer_rtx);
6086 emit_indirect_jump (pv);
6091 ;; ....................
6093 ;; Function prologue/epilogue
6095 ;; ....................
6098 (define_expand "prologue"
6102 mips_expand_prologue ();
6106 ;; Block any insns from being moved before this point, since the
6107 ;; profiling call to mcount can use various registers that aren't
6108 ;; saved or used to pass arguments.
6110 (define_insn "blockage"
6111 [(unspec_volatile [(const_int 0)] UNSPEC_BLOCKAGE)]
6114 [(set_attr "type" "ghost")
6115 (set_attr "mode" "none")])
6117 (define_insn "probe_stack_range_<P:mode>"
6118 [(set (match_operand:P 0 "register_operand" "=d")
6119 (unspec_volatile:P [(match_operand:P 1 "register_operand" "0")
6120 (match_operand:P 2 "register_operand" "d")]
6121 UNSPEC_PROBE_STACK_RANGE))]
6123 { return mips_output_probe_stack_range (operands[0], operands[2]); }
6124 [(set_attr "type" "unknown")
6125 (set_attr "can_delay" "no")
6126 (set_attr "mode" "<MODE>")])
6128 (define_expand "epilogue"
6132 mips_expand_epilogue (false);
6136 (define_expand "sibcall_epilogue"
6140 mips_expand_epilogue (true);
6144 ;; Trivial return. Make it look like a normal return insn as that
6145 ;; allows jump optimizations to work better.
6147 (define_expand "return"
6149 "mips_can_use_return_insn ()"
6150 { mips_expand_before_return (); })
6152 (define_expand "simple_return"
6155 { mips_expand_before_return (); })
6157 (define_insn "*<optab>"
6161 [(set_attr "type" "jump")
6162 (set_attr "mode" "none")])
6166 (define_insn "<optab>_internal"
6168 (use (match_operand 0 "pmode_register_operand" ""))]
6171 if (TARGET_MICROMIPS)
6172 return "%*jr%:\t%0";
6176 [(set_attr "type" "jump")
6177 (set_attr "mode" "none")])
6179 ;; Exception return.
6180 (define_insn "mips_eret"
6182 (unspec_volatile [(const_int 0)] UNSPEC_ERET)]
6185 [(set_attr "type" "trap")
6186 (set_attr "mode" "none")])
6188 ;; Debug exception return.
6189 (define_insn "mips_deret"
6191 (unspec_volatile [(const_int 0)] UNSPEC_DERET)]
6194 [(set_attr "type" "trap")
6195 (set_attr "mode" "none")])
6197 ;; Disable interrupts.
6198 (define_insn "mips_di"
6199 [(unspec_volatile [(const_int 0)] UNSPEC_DI)]
6202 [(set_attr "type" "trap")
6203 (set_attr "mode" "none")])
6205 ;; Execution hazard barrier.
6206 (define_insn "mips_ehb"
6207 [(unspec_volatile [(const_int 0)] UNSPEC_EHB)]
6210 [(set_attr "type" "trap")
6211 (set_attr "mode" "none")])
6213 ;; Read GPR from previous shadow register set.
6214 (define_insn "mips_rdpgpr"
6215 [(set (match_operand:SI 0 "register_operand" "=d")
6216 (unspec_volatile:SI [(match_operand:SI 1 "register_operand" "d")]
6220 [(set_attr "type" "move")
6221 (set_attr "mode" "SI")])
6223 ;; Move involving COP0 registers.
6224 (define_insn "cop0_move"
6225 [(set (match_operand:SI 0 "register_operand" "=B,d")
6226 (unspec_volatile:SI [(match_operand:SI 1 "register_operand" "d,B")]
6229 { return mips_output_move (operands[0], operands[1]); }
6230 [(set_attr "type" "mtc,mfc")
6231 (set_attr "mode" "SI")])
6233 ;; This is used in compiling the unwind routines.
6234 (define_expand "eh_return"
6235 [(use (match_operand 0 "general_operand"))]
6238 if (GET_MODE (operands[0]) != word_mode)
6239 operands[0] = convert_to_mode (word_mode, operands[0], 0);
6241 emit_insn (gen_eh_set_lr_di (operands[0]));
6243 emit_insn (gen_eh_set_lr_si (operands[0]));
6247 ;; Clobber the return address on the stack. We can't expand this
6248 ;; until we know where it will be put in the stack frame.
6250 (define_insn "eh_set_lr_si"
6251 [(unspec [(match_operand:SI 0 "register_operand" "d")] UNSPEC_EH_RETURN)
6252 (clobber (match_scratch:SI 1 "=&d"))]
6256 (define_insn "eh_set_lr_di"
6257 [(unspec [(match_operand:DI 0 "register_operand" "d")] UNSPEC_EH_RETURN)
6258 (clobber (match_scratch:DI 1 "=&d"))]
6263 [(unspec [(match_operand 0 "register_operand")] UNSPEC_EH_RETURN)
6264 (clobber (match_scratch 1))]
6268 mips_set_return_address (operands[0], operands[1]);
6272 (define_expand "exception_receiver"
6276 /* See the comment above load_call<mode> for details. */
6277 emit_insn (gen_set_got_version ());
6279 /* If we have a call-clobbered $gp, restore it from its save slot. */
6280 if (HAVE_restore_gp_si)
6281 emit_insn (gen_restore_gp_si ());
6282 else if (HAVE_restore_gp_di)
6283 emit_insn (gen_restore_gp_di ());
6287 (define_expand "nonlocal_goto_receiver"
6291 /* See the comment above load_call<mode> for details. */
6292 emit_insn (gen_set_got_version ());
6296 ;; Restore $gp from its .cprestore stack slot. The instruction remains
6297 ;; volatile until all uses of $28 are exposed.
6298 (define_insn_and_split "restore_gp_<mode>"
6300 (unspec_volatile:P [(const_int 0)] UNSPEC_RESTORE_GP))
6301 (clobber (match_scratch:P 0 "=&d"))]
6302 "TARGET_CALL_CLOBBERED_GP"
6304 "&& epilogue_completed"
6307 mips_restore_gp_from_cprestore_slot (operands[0]);
6310 [(set_attr "type" "ghost")])
6312 ;; Move between $gp and its register save slot.
6313 (define_insn_and_split "move_gp<mode>"
6314 [(set (match_operand:GPR 0 "nonimmediate_operand" "=d,m")
6315 (unspec:GPR [(match_operand:GPR 1 "move_operand" "m,d")]
6318 { return mips_must_initialize_gp_p () ? "#" : ""; }
6319 "mips_must_initialize_gp_p ()"
6322 mips_emit_move (operands[0], operands[1]);
6325 [(set_attr "type" "ghost")])
6328 ;; ....................
6332 ;; ....................
6334 ;; Instructions to load a call address from the GOT. The address might
6335 ;; point to a function or to a lazy binding stub. In the latter case,
6336 ;; the stub will use the dynamic linker to resolve the function, which
6337 ;; in turn will change the GOT entry to point to the function's real
6340 ;; This means that every call, even pure and constant ones, can
6341 ;; potentially modify the GOT entry. And once a stub has been called,
6342 ;; we must not call it again.
6344 ;; We represent this restriction using an imaginary, fixed, call-saved
6345 ;; register called GOT_VERSION_REGNUM. The idea is to make the register
6346 ;; live throughout the function and to change its value after every
6347 ;; potential call site. This stops any rtx value that uses the register
6348 ;; from being computed before an earlier call. To do this, we:
6350 ;; - Ensure that the register is live on entry to the function,
6351 ;; so that it is never thought to be used uninitalized.
6353 ;; - Ensure that the register is live on exit from the function,
6354 ;; so that it is live throughout.
6356 ;; - Make each call (lazily-bound or not) use the current value
6357 ;; of GOT_VERSION_REGNUM, so that updates of the register are
6358 ;; not moved across call boundaries.
6360 ;; - Add "ghost" definitions of the register to the beginning of
6361 ;; blocks reached by EH and ABNORMAL_CALL edges, because those
6362 ;; edges may involve calls that normal paths don't. (E.g. the
6363 ;; unwinding code that handles a non-call exception may change
6364 ;; lazily-bound GOT entries.) We do this by making the
6365 ;; exception_receiver and nonlocal_goto_receiver expanders emit
6366 ;; a set_got_version instruction.
6368 ;; - After each call (lazily-bound or not), use a "ghost"
6369 ;; update_got_version instruction to change the register's value.
6370 ;; This instruction mimics the _possible_ effect of the dynamic
6371 ;; resolver during the call and it remains live even if the call
6372 ;; itself becomes dead.
6374 ;; - Leave GOT_VERSION_REGNUM out of all register classes.
6375 ;; The register is therefore not a valid register_operand
6376 ;; and cannot be moved to or from other registers.
6378 (define_insn "load_call<mode>"
6379 [(set (match_operand:P 0 "register_operand" "=d")
6380 (unspec:P [(match_operand:P 1 "register_operand" "d")
6381 (match_operand:P 2 "immediate_operand" "")
6382 (reg:SI GOT_VERSION_REGNUM)] UNSPEC_LOAD_CALL))]
6384 "<load>\t%0,%R2(%1)"
6385 [(set_attr "got" "load")
6386 (set_attr "mode" "<MODE>")])
6388 (define_insn "set_got_version"
6389 [(set (reg:SI GOT_VERSION_REGNUM)
6390 (unspec_volatile:SI [(const_int 0)] UNSPEC_SET_GOT_VERSION))]
6393 [(set_attr "type" "ghost")])
6395 (define_insn "update_got_version"
6396 [(set (reg:SI GOT_VERSION_REGNUM)
6397 (unspec:SI [(reg:SI GOT_VERSION_REGNUM)] UNSPEC_UPDATE_GOT_VERSION))]
6400 [(set_attr "type" "ghost")])
6402 ;; Sibling calls. All these patterns use jump instructions.
6404 ;; If TARGET_SIBCALLS, call_insn_operand will only accept constant
6405 ;; addresses if a direct jump is acceptable. Since the 'S' constraint
6406 ;; is defined in terms of call_insn_operand, the same is true of the
6409 ;; When we use an indirect jump, we need a register that will be
6410 ;; preserved by the epilogue. Since TARGET_USE_PIC_FN_ADDR_REG forces
6411 ;; us to use $25 for this purpose -- and $25 is never clobbered by the
6412 ;; epilogue -- we might as well use it for !TARGET_USE_PIC_FN_ADDR_REG
6415 (define_expand "sibcall"
6416 [(parallel [(call (match_operand 0 "")
6417 (match_operand 1 ""))
6418 (use (match_operand 2 "")) ;; next_arg_reg
6419 (use (match_operand 3 ""))])] ;; struct_value_size_rtx
6422 mips_expand_call (MIPS_CALL_SIBCALL, NULL_RTX, XEXP (operands[0], 0),
6423 operands[1], operands[2], false);
6427 (define_insn "sibcall_internal"
6428 [(call (mem:SI (match_operand 0 "call_insn_operand" "j,S"))
6429 (match_operand 1 "" ""))]
6430 "TARGET_SIBCALLS && SIBLING_CALL_P (insn)"
6432 if (TARGET_MICROMIPS)
6433 return MICROMIPS_J ("j", operands, 0);
6435 return MIPS_CALL ("j", operands, 0, 1);
6437 [(set_attr "jal" "indirect,direct")
6438 (set_attr "jal_macro" "no")])
6440 (define_expand "sibcall_value"
6441 [(parallel [(set (match_operand 0 "")
6442 (call (match_operand 1 "")
6443 (match_operand 2 "")))
6444 (use (match_operand 3 ""))])] ;; next_arg_reg
6447 mips_expand_call (MIPS_CALL_SIBCALL, operands[0], XEXP (operands[1], 0),
6448 operands[2], operands[3], false);
6452 (define_insn "sibcall_value_internal"
6453 [(set (match_operand 0 "register_operand" "")
6454 (call (mem:SI (match_operand 1 "call_insn_operand" "j,S"))
6455 (match_operand 2 "" "")))]
6456 "TARGET_SIBCALLS && SIBLING_CALL_P (insn)"
6458 if (TARGET_MICROMIPS)
6459 return MICROMIPS_J ("j", operands, 1);
6461 return MIPS_CALL ("j", operands, 1, 2);
6463 [(set_attr "jal" "indirect,direct")
6464 (set_attr "jal_macro" "no")])
6466 (define_insn "sibcall_value_multiple_internal"
6467 [(set (match_operand 0 "register_operand" "")
6468 (call (mem:SI (match_operand 1 "call_insn_operand" "j,S"))
6469 (match_operand 2 "" "")))
6470 (set (match_operand 3 "register_operand" "")
6471 (call (mem:SI (match_dup 1))
6473 "TARGET_SIBCALLS && SIBLING_CALL_P (insn)"
6475 if (TARGET_MICROMIPS)
6476 return MICROMIPS_J ("j", operands, 1);
6478 return MIPS_CALL ("j", operands, 1, 2);
6480 [(set_attr "jal" "indirect,direct")
6481 (set_attr "jal_macro" "no")])
6483 (define_expand "call"
6484 [(parallel [(call (match_operand 0 "")
6485 (match_operand 1 ""))
6486 (use (match_operand 2 "")) ;; next_arg_reg
6487 (use (match_operand 3 ""))])] ;; struct_value_size_rtx
6490 mips_expand_call (MIPS_CALL_NORMAL, NULL_RTX, XEXP (operands[0], 0),
6491 operands[1], operands[2], false);
6495 ;; This instruction directly corresponds to an assembly-language "jal".
6496 ;; There are four cases:
6499 ;; Both symbolic and register destinations are OK. The pattern
6500 ;; always expands to a single mips instruction.
6502 ;; - -mabicalls/-mno-explicit-relocs:
6503 ;; Again, both symbolic and register destinations are OK.
6504 ;; The call is treated as a multi-instruction black box.
6506 ;; - -mabicalls/-mexplicit-relocs with n32 or n64:
6507 ;; Only "jal $25" is allowed. This expands to a single "jalr $25"
6510 ;; - -mabicalls/-mexplicit-relocs with o32 or o64:
6511 ;; Only "jal $25" is allowed. The call is actually two instructions:
6512 ;; "jalr $25" followed by an insn to reload $gp.
6514 ;; In the last case, we can generate the individual instructions with
6515 ;; a define_split. There are several things to be wary of:
6517 ;; - We can't expose the load of $gp before reload. If we did,
6518 ;; it might get removed as dead, but reload can introduce new
6519 ;; uses of $gp by rematerializing constants.
6521 ;; - We shouldn't restore $gp after calls that never return.
6522 ;; It isn't valid to insert instructions between a noreturn
6523 ;; call and the following barrier.
6525 ;; - The splitter deliberately changes the liveness of $gp. The unsplit
6526 ;; instruction preserves $gp and so have no effect on its liveness.
6527 ;; But once we generate the separate insns, it becomes obvious that
6528 ;; $gp is not live on entry to the call.
6530 (define_insn_and_split "call_internal"
6531 [(call (mem:SI (match_operand 0 "call_insn_operand" "c,S"))
6532 (match_operand 1 "" ""))
6533 (clobber (reg:SI RETURN_ADDR_REGNUM))]
6535 { return TARGET_SPLIT_CALLS ? "#" : MIPS_CALL ("jal", operands, 0, 1); }
6536 "reload_completed && TARGET_SPLIT_CALLS"
6539 mips_split_call (curr_insn, gen_call_split (operands[0], operands[1]));
6542 [(set_attr "jal" "indirect,direct")])
6544 (define_insn "call_split"
6545 [(call (mem:SI (match_operand 0 "call_insn_operand" "c,S"))
6546 (match_operand 1 "" ""))
6547 (clobber (reg:SI RETURN_ADDR_REGNUM))
6548 (clobber (reg:SI 28))]
6549 "TARGET_SPLIT_CALLS"
6550 { return MIPS_CALL ("jal", operands, 0, 1); }
6551 [(set_attr "jal" "indirect,direct")
6552 (set_attr "jal_macro" "no")])
6554 ;; A pattern for calls that must be made directly. It is used for
6555 ;; MIPS16 calls that the linker may need to redirect to a hard-float
6556 ;; stub; the linker relies on the call relocation type to detect when
6557 ;; such redirection is needed.
6558 (define_insn_and_split "call_internal_direct"
6559 [(call (mem:SI (match_operand 0 "const_call_insn_operand"))
6562 (clobber (reg:SI RETURN_ADDR_REGNUM))]
6564 { return TARGET_SPLIT_CALLS ? "#" : MIPS_CALL ("jal", operands, 0, -1); }
6565 "reload_completed && TARGET_SPLIT_CALLS"
6568 mips_split_call (curr_insn,
6569 gen_call_direct_split (operands[0], operands[1]));
6572 [(set_attr "jal" "direct")])
6574 (define_insn "call_direct_split"
6575 [(call (mem:SI (match_operand 0 "const_call_insn_operand"))
6578 (clobber (reg:SI RETURN_ADDR_REGNUM))
6579 (clobber (reg:SI 28))]
6580 "TARGET_SPLIT_CALLS"
6581 { return MIPS_CALL ("jal", operands, 0, -1); }
6582 [(set_attr "jal" "direct")
6583 (set_attr "jal_macro" "no")])
6585 (define_expand "call_value"
6586 [(parallel [(set (match_operand 0 "")
6587 (call (match_operand 1 "")
6588 (match_operand 2 "")))
6589 (use (match_operand 3 ""))])] ;; next_arg_reg
6592 mips_expand_call (MIPS_CALL_NORMAL, operands[0], XEXP (operands[1], 0),
6593 operands[2], operands[3], false);
6597 ;; See comment for call_internal.
6598 (define_insn_and_split "call_value_internal"
6599 [(set (match_operand 0 "register_operand" "")
6600 (call (mem:SI (match_operand 1 "call_insn_operand" "c,S"))
6601 (match_operand 2 "" "")))
6602 (clobber (reg:SI RETURN_ADDR_REGNUM))]
6604 { return TARGET_SPLIT_CALLS ? "#" : MIPS_CALL ("jal", operands, 1, 2); }
6605 "reload_completed && TARGET_SPLIT_CALLS"
6608 mips_split_call (curr_insn,
6609 gen_call_value_split (operands[0], operands[1],
6613 [(set_attr "jal" "indirect,direct")])
6615 (define_insn "call_value_split"
6616 [(set (match_operand 0 "register_operand" "")
6617 (call (mem:SI (match_operand 1 "call_insn_operand" "c,S"))
6618 (match_operand 2 "" "")))
6619 (clobber (reg:SI RETURN_ADDR_REGNUM))
6620 (clobber (reg:SI 28))]
6621 "TARGET_SPLIT_CALLS"
6622 { return MIPS_CALL ("jal", operands, 1, 2); }
6623 [(set_attr "jal" "indirect,direct")
6624 (set_attr "jal_macro" "no")])
6626 ;; See call_internal_direct.
6627 (define_insn_and_split "call_value_internal_direct"
6628 [(set (match_operand 0 "register_operand")
6629 (call (mem:SI (match_operand 1 "const_call_insn_operand"))
6632 (clobber (reg:SI RETURN_ADDR_REGNUM))]
6634 { return TARGET_SPLIT_CALLS ? "#" : MIPS_CALL ("jal", operands, 1, -1); }
6635 "reload_completed && TARGET_SPLIT_CALLS"
6638 mips_split_call (curr_insn,
6639 gen_call_value_direct_split (operands[0], operands[1],
6643 [(set_attr "jal" "direct")])
6645 (define_insn "call_value_direct_split"
6646 [(set (match_operand 0 "register_operand")
6647 (call (mem:SI (match_operand 1 "const_call_insn_operand"))
6650 (clobber (reg:SI RETURN_ADDR_REGNUM))
6651 (clobber (reg:SI 28))]
6652 "TARGET_SPLIT_CALLS"
6653 { return MIPS_CALL ("jal", operands, 1, -1); }
6654 [(set_attr "jal" "direct")
6655 (set_attr "jal_macro" "no")])
6657 ;; See comment for call_internal.
6658 (define_insn_and_split "call_value_multiple_internal"
6659 [(set (match_operand 0 "register_operand" "")
6660 (call (mem:SI (match_operand 1 "call_insn_operand" "c,S"))
6661 (match_operand 2 "" "")))
6662 (set (match_operand 3 "register_operand" "")
6663 (call (mem:SI (match_dup 1))
6665 (clobber (reg:SI RETURN_ADDR_REGNUM))]
6667 { return TARGET_SPLIT_CALLS ? "#" : MIPS_CALL ("jal", operands, 1, 2); }
6668 "reload_completed && TARGET_SPLIT_CALLS"
6671 mips_split_call (curr_insn,
6672 gen_call_value_multiple_split (operands[0], operands[1],
6673 operands[2], operands[3]));
6676 [(set_attr "jal" "indirect,direct")])
6678 (define_insn "call_value_multiple_split"
6679 [(set (match_operand 0 "register_operand" "")
6680 (call (mem:SI (match_operand 1 "call_insn_operand" "c,S"))
6681 (match_operand 2 "" "")))
6682 (set (match_operand 3 "register_operand" "")
6683 (call (mem:SI (match_dup 1))
6685 (clobber (reg:SI RETURN_ADDR_REGNUM))
6686 (clobber (reg:SI 28))]
6687 "TARGET_SPLIT_CALLS"
6688 { return MIPS_CALL ("jal", operands, 1, 2); }
6689 [(set_attr "jal" "indirect,direct")
6690 (set_attr "jal_macro" "no")])
6692 ;; Call subroutine returning any type.
6694 (define_expand "untyped_call"
6695 [(parallel [(call (match_operand 0 "")
6697 (match_operand 1 "")
6698 (match_operand 2 "")])]
6703 emit_call_insn (GEN_CALL (operands[0], const0_rtx, NULL, const0_rtx));
6705 for (i = 0; i < XVECLEN (operands[2], 0); i++)
6707 rtx set = XVECEXP (operands[2], 0, i);
6708 mips_emit_move (SET_DEST (set), SET_SRC (set));
6711 emit_insn (gen_blockage ());
6716 ;; ....................
6720 ;; ....................
6724 (define_insn "prefetch"
6725 [(prefetch (match_operand:QI 0 "address_operand" "ZD")
6726 (match_operand 1 "const_int_operand" "n")
6727 (match_operand 2 "const_int_operand" "n"))]
6728 "ISA_HAS_PREFETCH && TARGET_EXPLICIT_RELOCS"
6730 if (TARGET_LOONGSON_2EF || TARGET_LOONGSON_3A)
6732 /* Loongson 2[ef] and Loongson 3a use load to $0 for prefetching. */
6734 return "ld\t$0,%a0";
6736 return "lw\t$0,%a0";
6738 operands[1] = mips_prefetch_cookie (operands[1], operands[2]);
6739 return "pref\t%1,%a0";
6741 [(set_attr "type" "prefetch")])
6743 (define_insn "*prefetch_indexed_<mode>"
6744 [(prefetch (plus:P (match_operand:P 0 "register_operand" "d")
6745 (match_operand:P 1 "register_operand" "d"))
6746 (match_operand 2 "const_int_operand" "n")
6747 (match_operand 3 "const_int_operand" "n"))]
6748 "ISA_HAS_PREFETCHX && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT"
6750 operands[2] = mips_prefetch_cookie (operands[2], operands[3]);
6751 return "prefx\t%2,%1(%0)";
6753 [(set_attr "type" "prefetchx")])
6759 [(set_attr "type" "nop")
6760 (set_attr "mode" "none")])
6762 ;; Like nop, but commented out when outside a .set noreorder block.
6763 (define_insn "hazard_nop"
6767 if (mips_noreorder.nesting_level > 0)
6772 [(set_attr "type" "nop")])
6774 ;; MIPS4 Conditional move instructions.
6776 (define_insn "*mov<GPR:mode>_on_<MOVECC:mode>"
6777 [(set (match_operand:GPR 0 "register_operand" "=d,d")
6779 (match_operator:MOVECC 4 "equality_operator"
6780 [(match_operand:MOVECC 1 "register_operand" "<MOVECC:reg>,<MOVECC:reg>")
6782 (match_operand:GPR 2 "reg_or_0_operand" "dJ,0")
6783 (match_operand:GPR 3 "reg_or_0_operand" "0,dJ")))]
6788 [(set_attr "type" "condmove")
6789 (set_attr "mode" "<GPR:MODE>")])
6791 (define_insn "*mov<SCALARF:mode>_on_<MOVECC:mode>"
6792 [(set (match_operand:SCALARF 0 "register_operand" "=f,f")
6793 (if_then_else:SCALARF
6794 (match_operator:MOVECC 4 "equality_operator"
6795 [(match_operand:MOVECC 1 "register_operand" "<MOVECC:reg>,<MOVECC:reg>")
6797 (match_operand:SCALARF 2 "register_operand" "f,0")
6798 (match_operand:SCALARF 3 "register_operand" "0,f")))]
6799 "ISA_HAS_FP_CONDMOVE"
6801 mov%T4.<fmt>\t%0,%2,%1
6802 mov%t4.<fmt>\t%0,%3,%1"
6803 [(set_attr "type" "condmove")
6804 (set_attr "mode" "<SCALARF:MODE>")])
6806 ;; These are the main define_expand's used to make conditional moves.
6808 (define_expand "mov<mode>cc"
6809 [(set (match_dup 4) (match_operand 1 "comparison_operator"))
6810 (set (match_operand:GPR 0 "register_operand")
6811 (if_then_else:GPR (match_dup 5)
6812 (match_operand:GPR 2 "reg_or_0_operand")
6813 (match_operand:GPR 3 "reg_or_0_operand")))]
6816 mips_expand_conditional_move (operands);
6820 (define_expand "mov<mode>cc"
6821 [(set (match_dup 4) (match_operand 1 "comparison_operator"))
6822 (set (match_operand:SCALARF 0 "register_operand")
6823 (if_then_else:SCALARF (match_dup 5)
6824 (match_operand:SCALARF 2 "register_operand")
6825 (match_operand:SCALARF 3 "register_operand")))]
6826 "ISA_HAS_FP_CONDMOVE"
6828 mips_expand_conditional_move (operands);
6833 ;; ....................
6835 ;; mips16 inline constant tables
6837 ;; ....................
6840 (define_insn "consttable_tls_reloc"
6841 [(unspec_volatile [(match_operand 0 "tls_reloc_operand" "")
6842 (match_operand 1 "const_int_operand" "")]
6843 UNSPEC_CONSTTABLE_INT)]
6844 "TARGET_MIPS16_PCREL_LOADS"
6845 { return mips_output_tls_reloc_directive (&operands[0]); }
6846 [(set (attr "length") (symbol_ref "INTVAL (operands[1])"))])
6848 (define_insn "consttable_int"
6849 [(unspec_volatile [(match_operand 0 "consttable_operand" "")
6850 (match_operand 1 "const_int_operand" "")]
6851 UNSPEC_CONSTTABLE_INT)]
6854 assemble_integer (mips_strip_unspec_address (operands[0]),
6855 INTVAL (operands[1]),
6856 BITS_PER_UNIT * INTVAL (operands[1]), 1);
6859 [(set (attr "length") (symbol_ref "INTVAL (operands[1])"))])
6861 (define_insn "consttable_float"
6862 [(unspec_volatile [(match_operand 0 "consttable_operand" "")]
6863 UNSPEC_CONSTTABLE_FLOAT)]
6868 gcc_assert (GET_CODE (operands[0]) == CONST_DOUBLE);
6869 REAL_VALUE_FROM_CONST_DOUBLE (d, operands[0]);
6870 assemble_real (d, GET_MODE (operands[0]),
6871 GET_MODE_BITSIZE (GET_MODE (operands[0])));
6874 [(set (attr "length")
6875 (symbol_ref "GET_MODE_SIZE (GET_MODE (operands[0]))"))])
6877 (define_insn "align"
6878 [(unspec_volatile [(match_operand 0 "const_int_operand" "")] UNSPEC_ALIGN)]
6881 [(set (attr "length") (symbol_ref "(1 << INTVAL (operands[0])) - 1"))])
6884 [(match_operand 0 "small_data_pattern")]
6887 { operands[0] = mips_rewrite_small_data (operands[0]); })
6890 ;; ....................
6892 ;; MIPS16e Save/Restore
6894 ;; ....................
6897 (define_insn "*mips16e_save_restore"
6898 [(match_parallel 0 ""
6899 [(set (match_operand:SI 1 "register_operand")
6900 (plus:SI (match_dup 1)
6901 (match_operand:SI 2 "const_int_operand")))])]
6902 "operands[1] == stack_pointer_rtx
6903 && mips16e_save_restore_pattern_p (operands[0], INTVAL (operands[2]), NULL)"
6904 { return mips16e_output_save_restore (operands[0], INTVAL (operands[2])); }
6905 [(set_attr "type" "arith")
6906 (set_attr "extended_mips16" "yes")])
6908 ;; Thread-Local Storage
6910 ;; The TLS base pointer is accessed via "rdhwr $3, $29". No current
6911 ;; MIPS architecture defines this register, and no current
6912 ;; implementation provides it; instead, any OS which supports TLS is
6913 ;; expected to trap and emulate this instruction. rdhwr is part of the
6914 ;; MIPS 32r2 specification, but we use it on any architecture because
6915 ;; we expect it to be emulated. Use .set to force the assembler to
6918 ;; We do not use a constraint to force the destination to be $3
6919 ;; because $3 can appear explicitly as a function return value.
6920 ;; If we leave the use of $3 implicit in the constraints until
6921 ;; reload, we may end up making a $3 return value live across
6922 ;; the instruction, leading to a spill failure when reloading it.
6923 (define_insn_and_split "tls_get_tp_<mode>"
6924 [(set (match_operand:P 0 "register_operand" "=d")
6925 (unspec:P [(const_int 0)] UNSPEC_TLS_GET_TP))
6926 (clobber (reg:P TLS_GET_TP_REGNUM))]
6927 "HAVE_AS_TLS && !TARGET_MIPS16"
6929 "&& reload_completed"
6930 [(set (reg:P TLS_GET_TP_REGNUM)
6931 (unspec:P [(const_int 0)] UNSPEC_TLS_GET_TP))
6932 (set (match_dup 0) (reg:P TLS_GET_TP_REGNUM))]
6934 [(set_attr "type" "unknown")
6935 (set_attr "mode" "<MODE>")
6936 (set_attr "insn_count" "2")])
6938 (define_insn "*tls_get_tp_<mode>_split"
6939 [(set (reg:P TLS_GET_TP_REGNUM)
6940 (unspec:P [(const_int 0)] UNSPEC_TLS_GET_TP))]
6941 "HAVE_AS_TLS && !TARGET_MIPS16"
6942 ".set\tpush\;.set\tmips32r2\t\;rdhwr\t$3,$29\;.set\tpop"
6943 [(set_attr "type" "unknown")
6944 ; Since rdhwr always generates a trap for now, putting it in a delay
6945 ; slot would make the kernel's emulation of it much slower.
6946 (set_attr "can_delay" "no")
6947 (set_attr "mode" "<MODE>")])
6949 ;; In MIPS16 mode, the TLS base pointer is accessed by a
6950 ;; libgcc helper function __mips16_rdhwr(), as 'rdhwr' is not
6951 ;; accessible in MIPS16.
6953 ;; This is not represented as a call insn, to avoid the
6954 ;; unnecesarry clobbering of caller-save registers by a
6955 ;; function consisting only of: "rdhwr $3,$29; j $31; nop;"
6957 ;; A $25 clobber is added to cater for a $25 load stub added by the
6958 ;; linker to __mips16_rdhwr when the call is made from non-PIC code.
6960 (define_insn_and_split "tls_get_tp_mips16_<mode>"
6961 [(set (match_operand:P 0 "register_operand" "=d")
6962 (unspec:P [(match_operand:P 1 "call_insn_operand" "dS")]
6964 (clobber (reg:P TLS_GET_TP_REGNUM))
6965 (clobber (reg:P PIC_FUNCTION_ADDR_REGNUM))
6966 (clobber (reg:P RETURN_ADDR_REGNUM))]
6967 "HAVE_AS_TLS && TARGET_MIPS16"
6969 "&& reload_completed"
6970 [(parallel [(set (reg:P TLS_GET_TP_REGNUM)
6971 (unspec:P [(match_dup 1)] UNSPEC_TLS_GET_TP))
6972 (clobber (reg:P PIC_FUNCTION_ADDR_REGNUM))
6973 (clobber (reg:P RETURN_ADDR_REGNUM))])
6974 (set (match_dup 0) (reg:P TLS_GET_TP_REGNUM))]
6976 [(set_attr "type" "multi")
6977 (set_attr "insn_count" "4")
6978 (set_attr "mode" "<MODE>")])
6980 (define_insn "*tls_get_tp_mips16_call_<mode>"
6981 [(set (reg:P TLS_GET_TP_REGNUM)
6982 (unspec:P [(match_operand:P 0 "call_insn_operand" "dS")]
6984 (clobber (reg:P PIC_FUNCTION_ADDR_REGNUM))
6985 (clobber (reg:P RETURN_ADDR_REGNUM))]
6986 "HAVE_AS_TLS && TARGET_MIPS16"
6987 { return MIPS_CALL ("jal", operands, 0, -1); }
6988 [(set_attr "type" "call")
6989 (set_attr "insn_count" "3")
6990 (set_attr "mode" "<MODE>")])
6992 ;; Named pattern for expanding thread pointer reference.
6993 (define_expand "get_thread_pointer<mode>"
6994 [(match_operand:P 0 "register_operand" "=d")]
6997 mips_expand_thread_pointer (operands[0]);
7002 ;; Synchronization instructions.
7006 ; The MIPS Paired-Single Floating Point and MIPS-3D Instructions.
7008 (include "mips-ps-3d.md")
7010 ; The MIPS DSP Instructions.
7012 (include "mips-dsp.md")
7014 ; The MIPS DSP REV 2 Instructions.
7016 (include "mips-dspr2.md")
7018 ; MIPS fixed-point instructions.
7019 (include "mips-fixed.md")
7021 ; microMIPS patterns.
7022 (include "micromips.md")
7024 ; ST-Microelectronics Loongson-2E/2F-specific patterns.
7025 (include "loongson.md")
7027 (define_c_enum "unspec" [
7028 UNSPEC_ADDRESS_FIRST