1 ;; XSTORMY16 Machine description template
2 ;; Copyright (C) 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005, 2007, 2008
3 ;; Free Software Foundation, Inc.
4 ;; Contributed by Red Hat, Inc.
6 ;; This file is part of GCC.
8 ;; GCC is free software; you can redistribute it and/or modify
9 ;; it under the terms of the GNU General Public License as published by
10 ;; the Free Software Foundation; either version 3, or (at your option)
13 ;; GCC is distributed in the hope that it will be useful,
14 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
15 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 ;; GNU General Public License for more details.
18 ;; You should have received a copy of the GNU General Public License
19 ;; along with GCC; see the file COPYING3. If not see
20 ;; <http://www.gnu.org/licenses/>.
22 ;;- See file "rtl.def" for documentation on define_insn, match_*, et. al.
40 ;; Q post-inc mem (push)
41 ;; R pre-dec mem (pop)
44 ;; U -inf..1 or 16..inf
53 ;; ::::::::::::::::::::
57 ;; ::::::::::::::::::::
59 ; Categorize branches for the conditional in the length attribute.
60 (define_attr "branch_class" "notdirectbranch,br12,bcc12,bcc8p2,bcc8p4"
61 (const_string "notdirectbranch"))
63 ; The length of an instruction, used for branch shortening.
64 (define_attr "length" ""
66 [(eq_attr "branch_class" "br12")
67 (if_then_else (and (ge (minus (match_dup 0) (pc)) (const_int -2046))
68 (lt (minus (match_dup 0) (pc)) (const_int 2048)))
71 (eq_attr "branch_class" "bcc12")
72 (if_then_else (and (ge (minus (match_dup 0) (pc)) (const_int -2044))
73 (lt (minus (match_dup 0) (pc)) (const_int 2048)))
76 (eq_attr "branch_class" "bcc8p2")
77 (if_then_else (and (ge (minus (match_dup 0) (pc)) (const_int -124))
78 (lt (minus (match_dup 0) (pc)) (const_int 128)))
81 (eq_attr "branch_class" "bcc8p4")
82 (if_then_else (and (ge (minus (match_dup 0) (pc)) (const_int -122))
83 (lt (minus (match_dup 0) (pc)) (const_int 128)))
88 ; The operand which determines the setting of Rpsw.
89 ; The numbers indicate the operand number,
90 ; 'clobber' indicates it is changed in some unspecified way
91 ; 'nop' means it is not changed.
92 (define_attr "psw_operand" "clobber,nop,0,1,2,3,4" (const_string "0"))
94 (define_asm_attributes [(set_attr "length" "4")
95 (set_attr "psw_operand" "clobber")])
97 (include "predicates.md")
99 ;; ::::::::::::::::::::
103 ;; ::::::::::::::::::::
104 ;; push/pop qi and hi are here as separate insns rather than part of
105 ;; the movqi/hi patterns because we need to ensure that reload isn't
106 ;; passed anything it can't cope with. Without these patterns, we
109 ;; (set (mem (post_inc (sp))) mem (post_inc (reg)))
111 ;; If, in this example, reg needs reloading, reload will read reg from
112 ;; the stack , adjust sp, and store reg back at what is now the wrong
113 ;; offset. By using separate patterns for push and pop we ensure that
114 ;; insns like this one are never generated.
116 (define_insn "pushqi1"
117 [(set (mem:QI (post_inc (reg:HI 15)))
118 (match_operand:QI 0 "register_operand" "r"))]
121 [(set_attr "psw_operand" "nop")
122 (set_attr "length" "2")])
124 (define_insn "popqi1"
125 [(set (match_operand:QI 0 "register_operand" "=r")
126 (mem:QI (pre_dec (reg:HI 15))))]
129 [(set_attr "psw_operand" "nop")
130 (set_attr "length" "2")])
132 (define_expand "movqi"
133 [(set (match_operand:QI 0 "nonimmediate_nonstack_operand" "")
134 (match_operand:QI 1 "general_operand" ""))]
136 { xstormy16_expand_move (QImode, operands[0], operands[1]);
140 (define_insn "movqi_internal"
141 [(set (match_operand:QI 0 "nonimmediate_nonstack_operand" "=r,m,e,e,T,r,S,W,e")
142 (match_operand:QI 1 "general_operand" "r,e,m,i,i,i,i,ie,W"))]
154 [(set_attr_alternative "length"
156 (if_then_else (match_operand:QI 0 "short_memory_operand" "")
159 (if_then_else (match_operand:QI 1 "short_memory_operand" "")
168 (set_attr "psw_operand" "0,0,0,0,nop,0,nop,0,0")])
170 (define_insn "pushhi1"
171 [(set (mem:HI (post_inc (reg:HI 15)))
172 (match_operand:HI 0 "register_operand" "r"))]
175 [(set_attr "psw_operand" "nop")
176 (set_attr "length" "2")])
178 (define_insn "pophi1"
179 [(set (match_operand:HI 0 "register_operand" "=r")
180 (mem:HI (pre_dec (reg:HI 15))))]
183 [(set_attr "psw_operand" "nop")
184 (set_attr "length" "2")])
186 (define_expand "movhi"
187 [(set (match_operand:HI 0 "nonimmediate_nonstack_operand" "")
188 (match_operand:HI 1 "xs_hi_general_operand" ""))]
190 { xstormy16_expand_move (HImode, operands[0], operands[1]);
194 (define_insn "movhi_internal"
195 [(set (match_operand:HI 0 "nonimmediate_nonstack_operand" "=r,m,e,e,T,r,S,W,e")
196 (match_operand:HI 1 "xs_hi_general_operand" "r,e,m,L,L,i,i,ie,W"))]
208 [(set_attr_alternative "length"
210 (if_then_else (match_operand:QI 0 "short_memory_operand" "")
213 (if_then_else (match_operand:QI 1 "short_memory_operand" "")
222 (set_attr "psw_operand" "0,0,0,0,nop,0,nop,0,0")])
224 (define_expand "movsi"
225 [(set (match_operand:SI 0 "nonimmediate_operand" "")
226 (match_operand:SI 1 "general_operand" ""))]
228 { xstormy16_expand_move (SImode, operands[0], operands[1]);
232 (define_insn_and_split "*movsi_internal"
233 [(set (match_operand:SI 0 "nonimmediate_operand" "=r,Q,r,m,e,&e,e,r,S")
234 (match_operand:SI 1 "general_operand" "r,r,R,e,o, V,L,i,i"))]
239 { xstormy16_split_move (SImode, operands[0], operands[1]);
242 [(set_attr_alternative "length"
246 (if_then_else (match_operand:QI 0 "short_memory_operand" "")
249 (if_then_else (match_operand:QI 1 "short_memory_operand" "")
252 (if_then_else (match_operand:QI 1 "short_memory_operand" "")
259 ;; ::::::::::::::::::::
263 ;; ::::::::::::::::::::
265 (define_insn "extendqihi2"
266 [(set (match_operand:HI 0 "register_operand" "=r")
267 (sign_extend:HI (match_operand:QI 1 "register_operand" "0")))]
271 (define_insn "zero_extendqihi2"
272 [(set (match_operand:HI 0 "register_operand" "=e,r")
273 (zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "m,0")))]
277 shl %0,#8\n\tshr %0,#8"
278 [(set_attr "psw_operand" "nop,0")
279 (set_attr_alternative "length"
283 ;; ::::::::::::::::::::
285 ;; :: Bit field extraction
287 ;; ::::::::::::::::::::
289 ;; Extract an unsigned bit field
290 ;(define_insn "extzv"
291 ; [(set (match_operand:SI 0 "register_operand" "=r")
292 ; (zero_extract:SI (match_operand:SI 1 "register_operand" "r")
293 ; (match_operand:SI 2 "const_int_operand" "n")
294 ; (match_operand:SI 3 "const_int_operand" "n")))]
296 ; "extzv %0,%1,%2,%3"
297 ; [(set_attr "length" "4")])
299 ;; Insert a bit field
301 ; [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "+r")
302 ; (match_operand:SI 1 "const_int_operand" "n")
303 ; (match_operand:SI 2 "const_int_operand" "n"))
304 ; (match_operand:SI 3 "nonmemory_operand" "ri"))]
307 ; [(set_attr "length" "4")])
310 ;; ::::::::::::::::::::
312 ;; :: 16-bit Integer arithmetic
314 ;; ::::::::::::::::::::
317 ; Note - the early clobber modifier is no longer needed on operand 3
318 ; and in fact can cause some reload spill failures if it is present.
319 ; Note that the 'Z' constraint matches "add $reg,0", which reload
320 ; will occasionally emit. We avoid the "add $reg,imm" match because
321 ; it clobbers the carry.
322 (define_insn "addhi3"
323 [(set (match_operand:HI 0 "register_operand" "=r,r,r,T,T,r,r,r")
324 (plus:HI (match_operand:HI 1 "register_operand" "%0,0,0,0,0,0,0,0")
325 (match_operand:HI 2 "xs_hi_nonmemory_operand" "O,P,Z,L,M,Ir,N,i")))
326 (clobber (reg:BI CARRY_REG))]
337 [(set_attr "length" "2,2,0,2,2,2,2,4")])
339 (define_insn "addchi4"
340 [(set (match_operand:HI 0 "register_operand" "=T,r,r")
341 (plus:HI (match_operand:HI 1 "register_operand" "%0,0,0")
342 (match_operand:HI 2 "xs_hi_nonmemory_operand" "L,Ir,i")))
343 (set (reg:BI CARRY_REG)
344 (truncate:BI (lshiftrt:SI (plus:SI (zero_extend:SI (match_dup 1))
345 (zero_extend:SI (match_dup 2)))
352 [(set_attr "length" "2,2,4")])
354 (define_insn "addchi5"
355 [(set (match_operand:HI 0 "register_operand" "=T,r,r")
356 (plus:HI (plus:HI (match_operand:HI 1 "register_operand" "%0,0,0")
357 (zero_extend:HI (reg:BI CARRY_REG)))
358 (match_operand:HI 2 "xs_hi_nonmemory_operand" "L,Ir,i")))
359 (set (reg:BI CARRY_REG)
360 (truncate:BI (lshiftrt:SI (plus:SI (plus:SI
361 (zero_extend:SI (match_dup 1))
362 (zero_extend:SI (reg:BI CARRY_REG)))
363 (zero_extend:SI (match_dup 2)))
370 [(set_attr "length" "2,2,4")])
373 ; Operand 3 is marked earlyclobber because that helps reload
374 ; to generate better code---this pattern will never need the
375 ; carry register as an input, and some output reloads or input
376 ; reloads might need to use it. In fact, without the '&' reload
377 ; will fail in some cases.
378 (define_insn "subhi3"
379 [(set (match_operand:HI 0 "register_operand" "=r,r,T,T,r,r,r")
380 (minus:HI (match_operand:HI 1 "register_operand" "0,0,0,0,0,0,0")
381 (match_operand:HI 2 "xs_hi_nonmemory_operand" "O,P,L,M,rI,M,i")))
382 (clobber (reg:BI CARRY_REG))]
392 [(set_attr "length" "2,2,2,2,2,2,4")])
394 (define_insn "subchi4"
395 [(set (match_operand:HI 0 "register_operand" "=T,r,r")
396 (minus:HI (match_operand:HI 1 "register_operand" "0,0,0")
397 (match_operand:HI 2 "xs_hi_nonmemory_operand" "L,Ir,i")))
398 (set (reg:BI CARRY_REG)
399 (truncate:BI (lshiftrt:SI (minus:SI (zero_extend:SI (match_dup 1))
400 (zero_extend:SI (match_dup 2)))
407 [(set_attr "length" "2,2,4")])
409 (define_insn "subchi5"
410 [(set (match_operand:HI 0 "register_operand" "=T,r,r")
411 (minus:HI (minus:HI (match_operand:HI 1 "register_operand" "0,0,0")
412 (zero_extend:HI (reg:BI CARRY_REG)))
413 (match_operand:HI 2 "xs_hi_nonmemory_operand" "L,Ir,i")))
414 (set (reg:BI CARRY_REG)
415 (truncate:BI (lshiftrt:SI (minus:SI (minus:SI
416 (zero_extend:SI (match_dup 1))
417 (zero_extend:SI (reg:BI CARRY_REG)))
418 (zero_extend:SI (match_dup 2)))
425 [(set_attr "length" "2,2,4")])
427 ; Basic multiplication
428 (define_insn "mulhi3"
429 [(set (match_operand:HI 0 "register_operand" "=a")
430 (mult:HI (match_operand:HI 1 "register_operand" "%a")
431 (match_operand:HI 2 "register_operand" "c")))
432 (clobber (match_scratch:HI 3 "=b"))
436 [(set_attr "psw_operand" "nop")])
438 ;; Unsigned multiplication producing 64-bit results from 32-bit inputs
439 ; The constraint on operand 0 is 't' because it is actually two regs
440 ; long, and both regs must match the constraint.
441 (define_insn "umulhisi3"
442 [(set (match_operand:SI 0 "register_operand" "=t")
443 (mult:SI (zero_extend:SI (match_operand:HI 1 "register_operand" "%a"))
444 (zero_extend:SI (match_operand:HI 2 "register_operand" "c"))))
448 [(set_attr "psw_operand" "nop")])
450 ;; Unsigned division giving both quotient and remainder
451 (define_insn "udivmodhi4"
452 [(set (match_operand:HI 0 "register_operand" "=a")
453 (udiv:HI (match_operand:HI 1 "register_operand" "a")
454 (match_operand:HI 2 "register_operand" "c")))
455 (set (match_operand:HI 3 "register_operand" "=b")
456 (umod:HI (match_dup 1)
460 [(set_attr "psw_operand" "nop")])
462 ;; Signed division giving both quotient and remainder
463 (define_insn "divmodhi4"
464 [(set (match_operand:HI 0 "register_operand" "=a")
465 (div:HI (match_operand:HI 1 "register_operand" "a")
466 (match_operand:HI 2 "register_operand" "c")))
467 (set (match_operand:HI 3 "register_operand" "=b")
468 (mod:HI (match_dup 1)
472 [(set_attr "psw_operand" "nop")])
474 ;; Signed 32/16 division
475 (define_insn "sdivlh"
476 [(set (match_operand:HI 0 "register_operand" "=a")
477 (div:HI (match_operand:SI 2 "register_operand" "t")
478 (match_operand:HI 3 "register_operand" "c")))
479 (set (match_operand:HI 1 "register_operand" "=b")
480 (mod:HI (match_dup 2)
484 [(set_attr "psw_operand" "nop")])
486 ;; Unsigned 32/16 division
487 (define_insn "udivlh"
488 [(set (match_operand:HI 0 "register_operand" "=a")
489 (udiv:HI (match_operand:SI 2 "register_operand" "t")
490 (match_operand:HI 3 "register_operand" "c")))
491 (set (match_operand:HI 1 "register_operand" "=b")
492 (umod:HI (match_dup 2)
496 [(set_attr "psw_operand" "nop")])
500 (define_expand "neghi2"
501 [(set (match_operand:HI 0 "register_operand" "")
502 (not:HI (match_operand:HI 1 "register_operand" "")))
503 (parallel [(set (match_dup 0) (plus:HI (match_dup 0) (const_int 1)))
504 (clobber (reg:BI CARRY_REG))])]
508 ;; ::::::::::::::::::::
510 ;; :: 16-bit Integer Shifts and Rotates
512 ;; ::::::::::::::::::::
514 ;; Arithmetic Shift Left
515 (define_insn "ashlhi3"
516 [(set (match_operand:HI 0 "register_operand" "=r")
517 (ashift:HI (match_operand:HI 1 "register_operand" "0")
518 (match_operand:HI 2 "nonmemory_operand" "ri")))
519 (clobber (reg:BI CARRY_REG))]
523 ;; Arithmetic Shift Right
524 (define_insn "ashrhi3"
525 [(set (match_operand:HI 0 "register_operand" "=r")
526 (ashiftrt:HI (match_operand:HI 1 "register_operand" "0")
527 (match_operand:HI 2 "nonmemory_operand" "ri")))
528 (clobber (reg:BI CARRY_REG))]
532 ;; Logical Shift Right
533 (define_insn "lshrhi3"
534 [(set (match_operand:HI 0 "register_operand" "=r")
535 (lshiftrt:HI (match_operand:HI 1 "register_operand" "0")
536 (match_operand:HI 2 "nonmemory_operand" "ri")))
537 (clobber (reg:BI CARRY_REG))]
541 ;; ::::::::::::::::::::
543 ;; :: 16-Bit Integer Logical operations
545 ;; ::::::::::::::::::::
547 ;; Logical AND, 16-bit integers
548 (define_insn "andhi3"
549 [(set (match_operand:HI 0 "xstormy16_splittable_below100_or_register" "=T,r,r,r,W")
550 (and:HI (match_operand:HI 1 "xstormy16_below100_or_register" "%0,0,0,0,0")
551 (match_operand:HI 2 "nonmemory_operand" "L,r,K,i,K")))]
559 [(set_attr "length" "2,2,2,4,2")])
562 [(set (match_operand:HI 0 "xstormy16_below100_operand" "")
563 (and:HI (match_operand:HI 1 "xstormy16_below100_operand" "")
564 (match_operand:HI 2 "xstormy16_onebit_clr_operand" "")))]
567 (and:QI (match_dup 4)
569 { int s = ((INTVAL (operands[2]) & 0xff) == 0xff) ? 1 : 0;
570 operands[3] = simplify_gen_subreg (QImode, operands[0], HImode, s);
571 operands[4] = simplify_gen_subreg (QImode, operands[1], HImode, s);
572 operands[5] = simplify_gen_subreg (QImode, operands[2], HImode, s);
573 operands[5] = GEN_INT (INTVAL (operands[5]) | ~ (HOST_WIDE_INT) 0xff);
576 ;; Inclusive OR, 16-bit integers
577 (define_insn "iorhi3"
578 [(set (match_operand:HI 0 "xstormy16_splittable_below100_or_register" "=T,r,r,r,W")
579 (ior:HI (match_operand:HI 1 "xstormy16_below100_or_register" "%0,0,0,0,0")
580 (match_operand:HI 2 "nonmemory_operand" "L,r,J,i,J")))]
588 [(set_attr "length" "2,2,2,4,2")])
591 [(set (match_operand:HI 0 "xstormy16_below100_operand" "")
592 (ior:HI (match_operand:HI 1 "xstormy16_below100_operand" "")
593 (match_operand:HI 2 "xstormy16_onebit_set_operand" "")))]
596 (ior:QI (match_dup 4)
598 { int s = ((INTVAL (operands[2]) & 0xff) == 0x00) ? 1 : 0;
599 operands[3] = simplify_gen_subreg (QImode, operands[0], HImode, s);
600 operands[4] = simplify_gen_subreg (QImode, operands[1], HImode, s);
601 operands[5] = simplify_gen_subreg (QImode, operands[2], HImode, s);
602 operands[5] = GEN_INT (INTVAL (operands[5]) & 0xff);
605 ;; Exclusive OR, 16-bit integers
606 (define_insn "xorhi3"
607 [(set (match_operand:HI 0 "register_operand" "=T,r,r")
608 (xor:HI (match_operand:HI 1 "register_operand" "%0,0,0")
609 (match_operand:HI 2 "nonmemory_operand" "L,r,i")))]
615 [(set_attr "length" "2,2,4")])
617 ;; One's complement, 16-bit integers
618 (define_insn "one_cmplhi2"
619 [(set (match_operand:HI 0 "register_operand" "=r")
620 (not:HI (match_operand:HI 1 "register_operand" "0")))]
624 ;; ::::::::::::::::::::
626 ;; :: 32-bit Integer arithmetic
628 ;; ::::::::::::::::::::
631 (define_insn_and_split "addsi3"
632 [(set (match_operand:SI 0 "register_operand" "=r")
633 (plus:SI (match_operand:SI 1 "register_operand" "%0")
634 (match_operand:SI 2 "nonmemory_operand" "ri")))
635 (clobber (reg:BI CARRY_REG))]
640 { xstormy16_expand_arith (SImode, PLUS, operands[0], operands[1],
644 [(set_attr "length" "4")])
647 (define_insn_and_split "subsi3"
648 [(set (match_operand:SI 0 "register_operand" "=r")
649 (minus:SI (match_operand:SI 1 "register_operand" "0")
650 (match_operand:SI 2 "nonmemory_operand" "ri")))
651 (clobber (reg:BI CARRY_REG))]
656 { xstormy16_expand_arith (SImode, MINUS, operands[0], operands[1],
660 [(set_attr "length" "4")])
662 (define_expand "negsi2"
663 [(parallel [(set (match_operand:SI 0 "register_operand" "")
664 (neg:SI (match_operand:SI 1 "register_operand" "")))
665 (clobber (reg:BI CARRY_REG))])]
667 { operands[2] = gen_reg_rtx (HImode); })
669 (define_insn_and_split "*negsi2_internal"
670 [(set (match_operand:SI 0 "register_operand" "=&r")
671 (neg:SI (match_operand:SI 1 "register_operand" "r")))
672 (clobber (reg:BI CARRY_REG))]
677 { xstormy16_expand_arith (SImode, NEG, operands[0], operands[0],
682 ;; ::::::::::::::::::::
684 ;; :: 32-bit Integer Shifts and Rotates
686 ;; ::::::::::::::::::::
688 ;; Arithmetic Shift Left
689 (define_expand "ashlsi3"
690 [(parallel [(set (match_operand:SI 0 "register_operand" "")
691 (ashift:SI (match_operand:SI 1 "register_operand" "")
692 (match_operand:SI 2 "const_int_operand" "")))
693 (clobber (reg:BI CARRY_REG))
694 (clobber (match_dup 3))])]
696 { if (! const_int_operand (operands[2], SImode))
698 operands[3] = gen_reg_rtx (HImode);
701 ;; Arithmetic Shift Right
702 (define_expand "ashrsi3"
703 [(parallel [(set (match_operand:SI 0 "register_operand" "")
704 (ashiftrt:SI (match_operand:SI 1 "register_operand" "")
705 (match_operand:SI 2 "const_int_operand" "")))
706 (clobber (reg:BI CARRY_REG))
707 (clobber (match_dup 3))])]
709 { if (! const_int_operand (operands[2], SImode))
711 operands[3] = gen_reg_rtx (HImode);
714 ;; Logical Shift Right
715 (define_expand "lshrsi3"
716 [(parallel [(set (match_operand:SI 0 "register_operand" "")
717 (lshiftrt:SI (match_operand:SI 1 "register_operand" "")
718 (match_operand:SI 2 "const_int_operand" "")))
719 (clobber (reg:BI CARRY_REG))
720 (clobber (match_dup 3))])]
722 { if (! const_int_operand (operands[2], SImode))
724 operands[3] = gen_reg_rtx (HImode);
727 (define_insn "*shiftsi"
728 [(set (match_operand:SI 0 "register_operand" "=r,r")
729 (match_operator:SI 4 "shift_operator"
730 [(match_operand:SI 1 "register_operand" "0,0")
731 (match_operand:SI 2 "const_int_operand" "U,n")]))
732 (clobber (reg:BI CARRY_REG))
733 (clobber (match_operand:HI 3 "" "=X,r"))]
735 "* return xstormy16_output_shift (SImode, GET_CODE (operands[4]),
736 operands[0], operands[2], operands[3]);"
737 [(set_attr "length" "6,10")
738 (set_attr "psw_operand" "clobber,clobber")])
741 ;; ::::::::::::::::::::
745 ;; ::::::::::::::::::::
747 (define_expand "cbranchhi4"
749 (if_then_else (match_operator 0 "comparison_operator"
750 [(match_operand:HI 1 "register_operand" "")
751 (match_operand:HI 2 "nonmemory_operand" "")])
752 (label_ref (match_operand 3 "" ""))
754 (clobber (reg:BI CARRY_REG))]
757 xstormy16_emit_cbranch (GET_CODE (operands[0]), operands[1], operands[2],
762 (define_expand "cbranchsi4"
764 (if_then_else (match_operator 0 "comparison_operator"
765 [(match_operand:SI 1 "register_operand" "")
766 (match_operand:SI 2 "nonmemory_operand" "")])
767 (label_ref (match_operand 3 "" ""))
769 (clobber (reg:BI CARRY_REG))]
772 xstormy16_emit_cbranch (GET_CODE (operands[0]), operands[1], operands[2],
777 (define_insn "cbranchhi"
779 (if_then_else (match_operator:HI 1 "comparison_operator"
780 [(match_operand:HI 2 "nonmemory_operand"
782 (match_operand:HI 3 "nonmemory_operand"
784 (label_ref (match_operand 0 "" ""))
786 (clobber (reg:BI CARRY_REG))]
790 return xstormy16_output_cbranch_hi (operands[1], \"%l0\", 0, insn);
792 [(set_attr "branch_class" "bcc12")
793 (set_attr "psw_operand" "0,0,1")])
795 (define_insn "cbranchhi_neg"
797 (if_then_else (match_operator:HI 1 "comparison_operator"
798 [(match_operand:HI 2 "nonmemory_operand"
800 (match_operand:HI 3 "nonmemory_operand"
803 (label_ref (match_operand 0 "" ""))))
804 (clobber (reg:BI CARRY_REG))]
808 return xstormy16_output_cbranch_hi (operands[1], \"%l0\", 1, insn);
810 [(set_attr "branch_class" "bcc12")
811 (set_attr "psw_operand" "0,0,1")])
813 (define_insn "*eqbranchsi"
815 (if_then_else (match_operator:SI 1 "equality_operator"
816 [(match_operand:SI 2 "register_operand"
819 (label_ref (match_operand 0 "" ""))
821 (clobber (match_operand:SI 3 "register_operand" "=2"))]
825 return xstormy16_output_cbranch_si (operands[1], \"%l0\", 0, insn);
827 [(set_attr "branch_class" "bcc8p2")
828 (set_attr "psw_operand" "clobber")])
830 (define_insn_and_split "*ineqbranchsi"
832 (if_then_else (match_operator:SI 1 "xstormy16_ineqsi_operator"
833 [(match_operand:SI 2 "register_operand"
835 (match_operand:SI 3 "nonmemory_operand"
837 (label_ref (match_operand 0 "" ""))
839 (clobber (match_operand:SI 4 "register_operand" "=2"))
840 (clobber (reg:BI CARRY_REG))]
845 { xstormy16_split_cbranch (SImode, operands[0], operands[1], operands[2]); DONE; }
846 [(set_attr "length" "8")])
848 (define_insn "*ineqbranch_1"
850 (if_then_else (match_operator:HI 4 "xstormy16_ineqsi_operator"
851 [(minus:HI (match_operand:HI 1 "register_operand" "T,r,r")
852 (zero_extend:HI (reg:BI CARRY_REG)))
853 (match_operand:HI 3 "nonmemory_operand" "L,r,i")])
854 (label_ref (match_operand 0 "" ""))
856 (set (match_operand:HI 2 "register_operand" "=1,1,1")
857 (minus:HI (minus:HI (match_dup 1) (zero_extend:HI (reg:BI CARRY_REG)))
859 (clobber (reg:BI CARRY_REG))]
863 return xstormy16_output_cbranch_si (operands[4], \"%l0\", 0, insn);
865 [(set_attr "branch_class" "bcc8p2,bcc8p2,bcc8p4")
866 (set_attr "psw_operand" "2,2,2")])
868 ;; ::::::::::::::::::::
870 ;; :: Call and branch instructions
872 ;; ::::::::::::::::::::
874 ;; Subroutine call instruction returning no value. Operand 0 is the function
875 ;; to call; operand 1 is the number of bytes of arguments pushed (in mode
876 ;; `SImode', except it is normally a `const_int'); operand 2 is the number of
877 ;; registers used as operands.
879 ;; On most machines, operand 2 is not actually stored into the RTL pattern. It
880 ;; is supplied for the sake of some RISC machines which need to put this
881 ;; information into the assembler code; they can put it in the RTL instead of
884 (define_expand "call"
885 [(call (match_operand:HI 0 "memory_operand" "m")
886 (match_operand 1 "" ""))
887 (use (match_operand 2 "immediate_operand" ""))]
889 "xstormy16_expand_call (NULL_RTX, operands[0], operands[1]); DONE;")
891 ;; Subroutine call instruction returning a value. Operand 0 is the hard
892 ;; register in which the value is returned. There are three more operands, the
893 ;; same as the three operands of the `call' instruction (but with numbers
894 ;; increased by one).
896 ;; Subroutines that return `BLKmode' objects use the `call' insn.
898 (define_expand "call_value"
899 [(set (match_operand 0 "register_operand" "=r")
900 (call (match_operand:HI 1 "memory_operand" "m")
901 (match_operand:SI 2 "" "")))
902 (use (match_operand 3 "immediate_operand" ""))]
904 "xstormy16_expand_call (operands[0], operands[1], operands[2]); DONE;")
906 (define_insn "*call_internal"
907 [(call (mem:HI (match_operand:HI 0 "nonmemory_operand" "i,r"))
908 (match_operand 1 "" ""))
909 (use (match_operand:HI 2 "nonmemory_operand" "X,z"))]
914 [(set_attr "length" "4,2")
915 (set_attr "psw_operand" "clobber")])
917 (define_insn "*call_value_internal"
918 [(set (match_operand 3 "register_operand" "=r,r")
919 (call (mem:HI (match_operand:HI 0 "nonmemory_operand" "i,r"))
920 (match_operand 1 "" "")))
921 (use (match_operand:HI 2 "nonmemory_operand" "X,z"))]
926 [(set_attr "length" "4,2")
927 (set_attr "psw_operand" "clobber")])
930 (define_expand "return"
935 (define_insn "return_internal"
939 [(set_attr "psw_operand" "nop")])
941 (define_insn "return_internal_interrupt"
943 (unspec_volatile [(const_int 0)] 1)]
946 [(set_attr "psw_operand" "clobber")])
948 ;; Normal unconditional jump
950 [(set (pc) (label_ref (match_operand 0 "" "")))]
954 return xstormy16_output_cbranch_hi (NULL_RTX, \"%l0\", 0, insn);
956 [(set_attr "branch_class" "br12")
957 (set_attr "psw_operand" "nop")])
959 ;; Indirect jump through a register
960 (define_expand "indirect_jump"
961 [(set (match_dup 1) (const_int 0))
962 (parallel [(set (pc) (match_operand:HI 0 "register_operand" ""))
963 (use (match_dup 1))])]
965 "operands[1] = gen_reg_rtx (HImode);")
968 [(set (pc) (match_operand:HI 0 "register_operand" "r"))
969 (use (match_operand:HI 1 "register_operand" "z"))]
972 [(set_attr "length" "4")
973 (set_attr "psw_operand" "nop")])
975 ;; Table-based switch statements.
976 (define_expand "casesi"
977 [(use (match_operand:SI 0 "register_operand" ""))
978 (use (match_operand:SI 1 "immediate_operand" ""))
979 (use (match_operand:SI 2 "immediate_operand" ""))
980 (use (label_ref (match_operand 3 "" "")))
981 (use (label_ref (match_operand 4 "" "")))]
985 xstormy16_expand_casesi (operands[0], operands[1], operands[2],
986 operands[3], operands[4]);
990 (define_insn "tablejump_pcrel"
991 [(set (pc) (mem:HI (plus:HI (pc)
992 (match_operand:HI 0 "register_operand" "r"))))
993 (use (label_ref:SI (match_operand 1 "" "")))]
996 [(set_attr "psw_operand" "nop")])
998 ;; ::::::::::::::::::::
1000 ;; :: Prologue and Epilogue instructions
1002 ;; ::::::::::::::::::::
1004 ;; Called after register allocation to add any instructions needed for
1005 ;; the prologue. Using a prologue insn is favored compared to putting
1006 ;; all of the instructions in the TARGET_ASM_FUNCTION_PROLOGUE macro,
1007 ;; since it allows the scheduler to intermix instructions with the
1008 ;; saves of the caller saved registers. In some cases, it might be
1009 ;; necessary to emit a barrier instruction as the last insn to prevent
1011 (define_expand "prologue"
1015 xstormy16_expand_prologue ();
1019 ;; Called after register allocation to add any instructions needed for
1020 ;; the epilogue. Using an epilogue insn is favored compared to putting
1021 ;; all of the instructions in the TARGET_ASM_FUNCTION_EPILOGUE macro,
1022 ;; since it allows the scheduler to intermix instructions with the
1023 ;; restores of the caller saved registers. In some cases, it might be
1024 ;; necessary to emit a barrier instruction as the first insn to
1025 ;; prevent such scheduling.
1026 (define_expand "epilogue"
1030 xstormy16_expand_epilogue ();
1034 ;; ::::::::::::::::::::
1036 ;; :: Miscellaneous instructions
1038 ;; ::::::::::::::::::::
1040 ;; No operation, needed in case the user uses -g but not -O.
1045 [(set_attr "psw_operand" "nop")])
1047 ;; Pseudo instruction that prevents the scheduler from moving code above this
1049 (define_insn "blockage"
1050 [(unspec_volatile [(const_int 0)] 0)]
1053 [(set_attr "length" "0")
1054 (set_attr "psw_operand" "nop")])
1056 ;;---------------------------------------------------------------------------
1058 (define_expand "iorqi3"
1059 [(match_operand:QI 0 "xstormy16_below100_or_register" "")
1060 (match_operand:QI 1 "xstormy16_below100_or_register" "")
1061 (match_operand:QI 2 "nonmemory_operand" "")]
1064 xstormy16_expand_iorqi3 (operands);
1068 (define_insn "iorqi3_internal"
1069 [(set (match_operand:QI 0 "xstormy16_below100_or_register" "=Wr")
1070 (ior:QI (match_operand:QI 1 "xstormy16_below100_or_register" "0")
1071 (match_operand:QI 2 "xstormy16_onebit_set_operand" "i")))]
1074 [(set_attr "length" "2")
1075 (set_attr "psw_operand" "0")])
1078 [(set (match_operand:QI 0 "register_operand" "")
1079 (match_operand:QI 1 "xstormy16_below100_operand" ""))
1080 (set (match_operand:HI 2 "register_operand" "")
1081 (ior:HI (match_operand:HI 3 "register_operand" "")
1082 (match_operand:QI 4 "xstormy16_onebit_set_operand" "")))
1083 (set (match_operand:QI 5 "xstormy16_below100_operand" "")
1084 (match_operand:QI 6 "register_operand" ""))
1086 "REGNO (operands[0]) == REGNO (operands[2])
1087 && REGNO (operands[0]) == REGNO (operands[3])
1088 && REGNO (operands[0]) == REGNO (operands[6])
1089 && rtx_equal_p (operands[1], operands[5])"
1091 (ior:QI (match_dup 1)
1097 (define_expand "andqi3"
1098 [(match_operand:QI 0 "xstormy16_below100_or_register" "")
1099 (match_operand:QI 1 "xstormy16_below100_or_register" "")
1100 (match_operand:QI 2 "nonmemory_operand" "")]
1103 xstormy16_expand_andqi3 (operands);
1107 (define_insn "andqi3_internal"
1108 [(set (match_operand:QI 0 "xstormy16_below100_or_register" "=Wr")
1109 (and:QI (match_operand:QI 1 "xstormy16_below100_or_register" "0")
1110 (match_operand:QI 2 "xstormy16_onebit_clr_operand" "i")))]
1113 [(set_attr "length" "2")
1114 (set_attr "psw_operand" "0")])
1117 [(set (match_operand:HI 0 "register_operand" "")
1118 (and:HI (match_operand:HI 1 "register_operand" "")
1119 (match_operand 2 "immediate_operand" "")))
1120 (set (match_operand:HI 3 "register_operand" "")
1121 (zero_extend:HI (match_operand:QI 4 "register_operand" "")));
1123 "REGNO (operands[0]) == REGNO (operands[1])
1124 && REGNO (operands[0]) == REGNO (operands[3])
1125 && REGNO (operands[0]) == REGNO (operands[4])"
1127 (and:HI (match_dup 1)
1130 "operands[5] = GEN_INT (INTVAL (operands[2]) & 0xff);")
1133 [(set (match_operand:QI 0 "register_operand" "")
1134 (match_operand:QI 1 "xstormy16_below100_operand" ""))
1135 (set (match_operand:HI 2 "register_operand" "")
1136 (and:HI (match_operand:HI 3 "register_operand" "")
1137 (match_operand:QI 4 "xstormy16_onebit_clr_operand" "")))
1138 (set (match_operand:QI 5 "xstormy16_below100_operand" "")
1139 (match_operand:QI 6 "register_operand" ""))
1141 "REGNO (operands[0]) == REGNO (operands[2])
1142 && REGNO (operands[0]) == REGNO (operands[3])
1143 && REGNO (operands[0]) == REGNO (operands[6])
1144 && rtx_equal_p (operands[1], operands[5])"
1146 (and:QI (match_dup 1)
1151 ;; GCC uses different techniques to optimize MSB and LSB accesses, so
1152 ;; we have to code those separately.
1154 (define_insn "*bclrx"
1156 (if_then_else (eq:HI (and:QI (match_operand:QI 1 "xstormy16_below100_operand" "W")
1157 (match_operand:HI 2 "immediate_operand" "i"))
1159 (label_ref (match_operand 0 "" ""))
1161 (clobber (reg:BI CARRY_REG))]
1164 [(set_attr "length" "4")
1165 (set_attr "psw_operand" "nop")])
1167 (define_insn "*bclrx2"
1169 (if_then_else (zero_extract:HI
1171 (match_operand:QI 1 "xstormy16_below100_operand" "W") 0)
1172 (match_operand:HI 2 "xstormy16_onebit_set_operand" "J"))
1174 (match_operand:HI 3 "immediate_operand" "i"))
1175 (label_ref (match_operand 0 "" ""))
1177 (clobber (reg:BI CARRY_REG))]
1180 [(set_attr "length" "4")
1181 (set_attr "psw_operand" "nop")])
1183 (define_insn "*bclrx3"
1185 (if_then_else (eq:HI (and:HI (zero_extend:HI (match_operand:QI 1 "xstormy16_below100_operand" "W"))
1186 (match_operand:HI 2 "immediate_operand" "i"))
1188 (label_ref (match_operand 0 "" ""))
1190 (clobber (reg:BI CARRY_REG))]
1193 [(set_attr "length" "4")
1194 (set_attr "psw_operand" "nop")])
1196 (define_insn "*bclr7"
1198 (if_then_else (xor:HI (lshiftrt:HI (subreg:HI
1199 (match_operand:QI 1 "xstormy16_below100_operand" "W") 0)
1202 (label_ref (match_operand 0 "" ""))
1204 (clobber (reg:BI CARRY_REG))]
1207 [(set_attr "length" "4")
1208 (set_attr "psw_operand" "nop")])
1210 (define_insn "*bclr15"
1212 (if_then_else (ge:HI (sign_extend:HI (match_operand:QI 1 "xstormy16_below100_operand" "W"))
1214 (label_ref (match_operand 0 "" ""))
1216 (clobber (reg:BI CARRY_REG))]
1219 [(set_attr "length" "4")
1220 (set_attr "psw_operand" "nop")])
1222 (define_insn "*bsetx"
1224 (if_then_else (ne:HI (and:QI (match_operand:QI 1 "xstormy16_below100_operand" "W")
1225 (match_operand:HI 2 "immediate_operand" "i"))
1227 (label_ref (match_operand 0 "" ""))
1229 (clobber (reg:BI CARRY_REG))]
1232 [(set_attr "length" "4")
1233 (set_attr "psw_operand" "nop")])
1235 (define_insn "*bsetx2"
1237 (if_then_else (zero_extract:HI (match_operand:QI 1 "xstormy16_below100_operand" "W")
1239 (match_operand:HI 2 "immediate_operand" "i"))
1240 (label_ref (match_operand 0 "" ""))
1242 (clobber (reg:BI CARRY_REG))]
1245 [(set_attr "length" "4")
1246 (set_attr "psw_operand" "nop")])
1248 (define_insn "*bsetx3"
1250 (if_then_else (ne:HI (and:HI (zero_extend:HI (match_operand:QI 1 "xstormy16_below100_operand" "W"))
1251 (match_operand:HI 2 "immediate_operand" "i"))
1253 (label_ref (match_operand 0 "" ""))
1255 (clobber (reg:BI CARRY_REG))]
1258 [(set_attr "length" "4")
1259 (set_attr "psw_operand" "nop")])
1261 (define_insn "*bset7"
1263 (if_then_else (lshiftrt:HI (subreg:HI (match_operand:QI 1 "xstormy16_below100_operand" "W") 0)
1265 (label_ref (match_operand 0 "" ""))
1267 (clobber (reg:BI CARRY_REG))]
1270 [(set_attr "length" "4")
1271 (set_attr "psw_operand" "nop")])
1273 (define_insn "*bset15"
1275 (if_then_else (lt:HI (sign_extend:HI (match_operand:QI 1 "xstormy16_below100_operand" "W"))
1277 (label_ref (match_operand 0 "" ""))
1279 (clobber (reg:BI CARRY_REG))]
1282 [(set_attr "length" "4")
1283 (set_attr "psw_operand" "nop")])