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1 | ;; Machine description for RISC-V for GNU compiler. | |
2 | ;; Copyright (C) 2011-2018 Free Software Foundation, Inc. | |
3 | ;; Contributed by Andrew Waterman (andrew@sifive.com). | |
4 | ;; Based on MIPS target for GNU compiler. | |
5 | ||
6 | ;; This file is part of GCC. | |
7 | ||
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) | |
11 | ;; any later version. | |
12 | ||
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. | |
17 | ||
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/>. | |
21 | ||
22 | (define_c_enum "unspec" [ | |
23 | ;; Override return address for exception handling. | |
24 | UNSPEC_EH_RETURN | |
25 | ||
26 | ;; Symbolic accesses. The order of this list must match that of | |
27 | ;; enum riscv_symbol_type in riscv-protos.h. | |
28 | UNSPEC_ADDRESS_FIRST | |
29 | UNSPEC_PCREL | |
30 | UNSPEC_LOAD_GOT | |
31 | UNSPEC_TLS | |
32 | UNSPEC_TLS_LE | |
33 | UNSPEC_TLS_IE | |
34 | UNSPEC_TLS_GD | |
35 | ||
36 | ;; High part of PC-relative address. | |
37 | UNSPEC_AUIPC | |
38 | ||
39 | ;; Floating-point unspecs. | |
40 | UNSPEC_FLT_QUIET | |
41 | UNSPEC_FLE_QUIET | |
42 | UNSPEC_COPYSIGN | |
43 | UNSPEC_LRINT | |
44 | UNSPEC_LROUND | |
45 | ||
46 | ;; Stack tie | |
47 | UNSPEC_TIE | |
48 | ]) | |
49 | ||
50 | (define_c_enum "unspecv" [ | |
51 | ;; Register save and restore. | |
52 | UNSPECV_GPR_SAVE | |
53 | UNSPECV_GPR_RESTORE | |
54 | ||
55 | ;; Floating-point unspecs. | |
56 | UNSPECV_FRFLAGS | |
57 | UNSPECV_FSFLAGS | |
58 | ||
59 | ;; Blockage and synchronization. | |
60 | UNSPECV_BLOCKAGE | |
61 | UNSPECV_FENCE | |
62 | UNSPECV_FENCE_I | |
63 | ]) | |
64 | ||
65 | (define_constants | |
66 | [(RETURN_ADDR_REGNUM 1) | |
67 | (T0_REGNUM 5) | |
68 | (T1_REGNUM 6) | |
69 | (S0_REGNUM 8) | |
70 | (S1_REGNUM 9) | |
71 | (S2_REGNUM 18) | |
72 | ]) | |
73 | ||
74 | (include "predicates.md") | |
75 | (include "constraints.md") | |
76 | ||
77 | ;; .................... | |
78 | ;; | |
79 | ;; Attributes | |
80 | ;; | |
81 | ;; .................... | |
82 | ||
83 | (define_attr "got" "unset,xgot_high,load" | |
84 | (const_string "unset")) | |
85 | ||
86 | ;; Classification of moves, extensions and truncations. Most values | |
87 | ;; are as for "type" (see below) but there are also the following | |
88 | ;; move-specific values: | |
89 | ;; | |
90 | ;; andi a single ANDI instruction | |
91 | ;; shift_shift a shift left followed by a shift right | |
92 | ;; | |
93 | ;; This attribute is used to determine the instruction's length and | |
94 | ;; scheduling type. For doubleword moves, the attribute always describes | |
95 | ;; the split instructions; in some cases, it is more appropriate for the | |
96 | ;; scheduling type to be "multi" instead. | |
97 | (define_attr "move_type" | |
98 | "unknown,load,fpload,store,fpstore,mtc,mfc,move,fmove, | |
99 | const,logical,arith,andi,shift_shift" | |
100 | (const_string "unknown")) | |
101 | ||
102 | ;; Main data type used by the insn | |
103 | (define_attr "mode" "unknown,none,QI,HI,SI,DI,TI,SF,DF,TF" | |
104 | (const_string "unknown")) | |
105 | ||
106 | ;; True if the main data type is twice the size of a word. | |
107 | (define_attr "dword_mode" "no,yes" | |
108 | (cond [(and (eq_attr "mode" "DI,DF") | |
109 | (eq (symbol_ref "TARGET_64BIT") (const_int 0))) | |
110 | (const_string "yes") | |
111 | ||
112 | (and (eq_attr "mode" "TI,TF") | |
113 | (ne (symbol_ref "TARGET_64BIT") (const_int 0))) | |
114 | (const_string "yes")] | |
115 | (const_string "no"))) | |
116 | ||
117 | ;; Classification of each insn. | |
118 | ;; branch conditional branch | |
119 | ;; jump unconditional jump | |
120 | ;; call unconditional call | |
121 | ;; load load instruction(s) | |
122 | ;; fpload floating point load | |
123 | ;; store store instruction(s) | |
124 | ;; fpstore floating point store | |
125 | ;; mtc transfer to coprocessor | |
126 | ;; mfc transfer from coprocessor | |
127 | ;; const load constant | |
128 | ;; arith integer arithmetic instructions | |
129 | ;; logical integer logical instructions | |
130 | ;; shift integer shift instructions | |
131 | ;; slt set less than instructions | |
132 | ;; imul integer multiply | |
133 | ;; idiv integer divide | |
134 | ;; move integer register move (addi rd, rs1, 0) | |
135 | ;; fmove floating point register move | |
136 | ;; fadd floating point add/subtract | |
137 | ;; fmul floating point multiply | |
138 | ;; fmadd floating point multiply-add | |
139 | ;; fdiv floating point divide | |
140 | ;; fcmp floating point compare | |
141 | ;; fcvt floating point convert | |
142 | ;; fsqrt floating point square root | |
143 | ;; multi multiword sequence (or user asm statements) | |
144 | ;; nop no operation | |
145 | ;; ghost an instruction that produces no real code | |
146 | (define_attr "type" | |
147 | "unknown,branch,jump,call,load,fpload,store,fpstore, | |
148 | mtc,mfc,const,arith,logical,shift,slt,imul,idiv,move,fmove,fadd,fmul, | |
149 | fmadd,fdiv,fcmp,fcvt,fsqrt,multi,nop,ghost" | |
150 | (cond [(eq_attr "got" "load") (const_string "load") | |
151 | ||
152 | ;; If a doubleword move uses these expensive instructions, | |
153 | ;; it is usually better to schedule them in the same way | |
154 | ;; as the singleword form, rather than as "multi". | |
155 | (eq_attr "move_type" "load") (const_string "load") | |
156 | (eq_attr "move_type" "fpload") (const_string "fpload") | |
157 | (eq_attr "move_type" "store") (const_string "store") | |
158 | (eq_attr "move_type" "fpstore") (const_string "fpstore") | |
159 | (eq_attr "move_type" "mtc") (const_string "mtc") | |
160 | (eq_attr "move_type" "mfc") (const_string "mfc") | |
161 | ||
162 | ;; These types of move are always single insns. | |
163 | (eq_attr "move_type" "fmove") (const_string "fmove") | |
164 | (eq_attr "move_type" "arith") (const_string "arith") | |
165 | (eq_attr "move_type" "logical") (const_string "logical") | |
166 | (eq_attr "move_type" "andi") (const_string "logical") | |
167 | ||
168 | ;; These types of move are always split. | |
169 | (eq_attr "move_type" "shift_shift") | |
170 | (const_string "multi") | |
171 | ||
172 | ;; These types of move are split for doubleword modes only. | |
173 | (and (eq_attr "move_type" "move,const") | |
174 | (eq_attr "dword_mode" "yes")) | |
175 | (const_string "multi") | |
176 | (eq_attr "move_type" "move") (const_string "move") | |
177 | (eq_attr "move_type" "const") (const_string "const")] | |
178 | (const_string "unknown"))) | |
179 | ||
180 | ;; Length of instruction in bytes. | |
181 | (define_attr "length" "" | |
182 | (cond [ | |
183 | ;; Branches further than +/- 4 KiB require two instructions. | |
184 | (eq_attr "type" "branch") | |
185 | (if_then_else (and (le (minus (match_dup 0) (pc)) (const_int 4088)) | |
186 | (le (minus (pc) (match_dup 0)) (const_int 4092))) | |
187 | (const_int 4) | |
188 | (const_int 8)) | |
189 | ||
190 | ;; Conservatively assume calls take two instructions (AUIPC + JALR). | |
191 | ;; The linker will opportunistically relax the sequence to JAL. | |
192 | (eq_attr "type" "call") (const_int 8) | |
193 | ||
194 | ;; "Ghost" instructions occupy no space. | |
195 | (eq_attr "type" "ghost") (const_int 0) | |
196 | ||
197 | (eq_attr "got" "load") (const_int 8) | |
198 | ||
199 | (eq_attr "type" "fcmp") (const_int 8) | |
200 | ||
201 | ;; SHIFT_SHIFTs are decomposed into two separate instructions. | |
202 | (eq_attr "move_type" "shift_shift") | |
203 | (const_int 8) | |
204 | ||
205 | ;; Check for doubleword moves that are decomposed into two | |
206 | ;; instructions. | |
207 | (and (eq_attr "move_type" "mtc,mfc,move") | |
208 | (eq_attr "dword_mode" "yes")) | |
209 | (const_int 8) | |
210 | ||
211 | ;; Doubleword CONST{,N} moves are split into two word | |
212 | ;; CONST{,N} moves. | |
213 | (and (eq_attr "move_type" "const") | |
214 | (eq_attr "dword_mode" "yes")) | |
215 | (symbol_ref "riscv_split_const_insns (operands[1]) * 4") | |
216 | ||
217 | ;; Otherwise, constants, loads and stores are handled by external | |
218 | ;; routines. | |
219 | (eq_attr "move_type" "load,fpload") | |
220 | (symbol_ref "riscv_load_store_insns (operands[1], insn) * 4") | |
221 | (eq_attr "move_type" "store,fpstore") | |
222 | (symbol_ref "riscv_load_store_insns (operands[0], insn) * 4") | |
223 | ] (const_int 4))) | |
224 | ||
225 | ;; Is copying of this instruction disallowed? | |
226 | (define_attr "cannot_copy" "no,yes" (const_string "no")) | |
227 | ||
228 | ;; Describe a user's asm statement. | |
229 | (define_asm_attributes | |
230 | [(set_attr "type" "multi")]) | |
231 | ||
232 | ;; This mode iterator allows 32-bit and 64-bit GPR patterns to be generated | |
233 | ;; from the same template. | |
234 | (define_mode_iterator GPR [SI (DI "TARGET_64BIT")]) | |
235 | ||
236 | ;; This mode iterator allows :P to be used for patterns that operate on | |
237 | ;; pointer-sized quantities. Exactly one of the two alternatives will match. | |
238 | (define_mode_iterator P [(SI "Pmode == SImode") (DI "Pmode == DImode")]) | |
239 | ||
240 | ;; Likewise, but for XLEN-sized quantities. | |
241 | (define_mode_iterator X [(SI "!TARGET_64BIT") (DI "TARGET_64BIT")]) | |
242 | ||
243 | ;; Branches operate on XLEN-sized quantities, but for RV64 we accept | |
244 | ;; QImode values so we can force zero-extension. | |
245 | (define_mode_iterator BR [(QI "TARGET_64BIT") SI (DI "TARGET_64BIT")]) | |
246 | ||
247 | ;; 32-bit moves for which we provide move patterns. | |
248 | (define_mode_iterator MOVE32 [SI]) | |
249 | ||
250 | ;; 64-bit modes for which we provide move patterns. | |
251 | (define_mode_iterator MOVE64 [DI DF]) | |
252 | ||
253 | ;; Iterator for sub-32-bit integer modes. | |
254 | (define_mode_iterator SHORT [QI HI]) | |
255 | ||
256 | ;; Iterator for HImode constant generation. | |
257 | (define_mode_iterator HISI [HI SI]) | |
258 | ||
259 | ;; Iterator for QImode extension patterns. | |
260 | (define_mode_iterator SUPERQI [HI SI (DI "TARGET_64BIT")]) | |
261 | ||
262 | ;; Iterator for extending loads. | |
263 | (define_mode_iterator ZERO_EXTEND_LOAD [QI HI (SI "TARGET_64BIT")]) | |
264 | ||
265 | ;; Iterator for hardware integer modes narrower than XLEN. | |
266 | (define_mode_iterator SUBX [QI HI (SI "TARGET_64BIT")]) | |
267 | ||
268 | ;; Iterator for hardware-supported integer modes. | |
269 | (define_mode_iterator ANYI [QI HI SI (DI "TARGET_64BIT")]) | |
270 | ||
271 | ;; Iterator for hardware-supported floating-point modes. | |
272 | (define_mode_iterator ANYF [(SF "TARGET_HARD_FLOAT") | |
273 | (DF "TARGET_DOUBLE_FLOAT")]) | |
274 | ||
275 | ;; This attribute gives the length suffix for a sign- or zero-extension | |
276 | ;; instruction. | |
277 | (define_mode_attr size [(QI "b") (HI "h")]) | |
278 | ||
279 | ;; Mode attributes for loads. | |
280 | (define_mode_attr load [(QI "lb") (HI "lh") (SI "lw") (DI "ld") (SF "flw") (DF "fld")]) | |
281 | ||
282 | ;; Instruction names for stores. | |
283 | (define_mode_attr store [(QI "sb") (HI "sh") (SI "sw") (DI "sd") (SF "fsw") (DF "fsd")]) | |
284 | ||
285 | ;; This attribute gives the best constraint to use for registers of | |
286 | ;; a given mode. | |
287 | (define_mode_attr reg [(SI "d") (DI "d") (CC "d")]) | |
288 | ||
289 | ;; This attribute gives the format suffix for floating-point operations. | |
290 | (define_mode_attr fmt [(SF "s") (DF "d")]) | |
291 | ||
292 | ;; This attribute gives the integer suffix for floating-point conversions. | |
293 | (define_mode_attr ifmt [(SI "w") (DI "l")]) | |
294 | ||
295 | ;; This attribute gives the format suffix for atomic memory operations. | |
296 | (define_mode_attr amo [(SI "w") (DI "d")]) | |
297 | ||
298 | ;; This attribute gives the upper-case mode name for one unit of a | |
299 | ;; floating-point mode. | |
300 | (define_mode_attr UNITMODE [(SF "SF") (DF "DF")]) | |
301 | ||
302 | ;; This attribute gives the integer mode that has half the size of | |
303 | ;; the controlling mode. | |
304 | (define_mode_attr HALFMODE [(DF "SI") (DI "SI") (TF "DI")]) | |
305 | ||
306 | ;; Iterator and attributes for floating-point rounding instructions. | |
307 | (define_int_iterator RINT [UNSPEC_LRINT UNSPEC_LROUND]) | |
308 | (define_int_attr rint_pattern [(UNSPEC_LRINT "rint") (UNSPEC_LROUND "round")]) | |
309 | (define_int_attr rint_rm [(UNSPEC_LRINT "dyn") (UNSPEC_LROUND "rmm")]) | |
310 | ||
311 | ;; Iterator and attributes for quiet comparisons. | |
312 | (define_int_iterator QUIET_COMPARISON [UNSPEC_FLT_QUIET UNSPEC_FLE_QUIET]) | |
313 | (define_int_attr quiet_pattern [(UNSPEC_FLT_QUIET "lt") (UNSPEC_FLE_QUIET "le")]) | |
314 | ||
315 | ;; This code iterator allows signed and unsigned widening multiplications | |
316 | ;; to use the same template. | |
317 | (define_code_iterator any_extend [sign_extend zero_extend]) | |
318 | ||
319 | ;; This code iterator allows the two right shift instructions to be | |
320 | ;; generated from the same template. | |
321 | (define_code_iterator any_shiftrt [ashiftrt lshiftrt]) | |
322 | ||
323 | ;; This code iterator allows the three shift instructions to be generated | |
324 | ;; from the same template. | |
325 | (define_code_iterator any_shift [ashift ashiftrt lshiftrt]) | |
326 | ||
327 | ;; This code iterator allows the three bitwise instructions to be generated | |
328 | ;; from the same template. | |
329 | (define_code_iterator any_bitwise [and ior xor]) | |
330 | ||
331 | ;; This code iterator allows unsigned and signed division to be generated | |
332 | ;; from the same template. | |
333 | (define_code_iterator any_div [div udiv mod umod]) | |
334 | ||
335 | ;; This code iterator allows unsigned and signed modulus to be generated | |
336 | ;; from the same template. | |
337 | (define_code_iterator any_mod [mod umod]) | |
338 | ||
339 | ;; These code iterators allow the signed and unsigned scc operations to use | |
340 | ;; the same template. | |
341 | (define_code_iterator any_gt [gt gtu]) | |
342 | (define_code_iterator any_ge [ge geu]) | |
343 | (define_code_iterator any_lt [lt ltu]) | |
344 | (define_code_iterator any_le [le leu]) | |
345 | ||
346 | ;; <u> expands to an empty string when doing a signed operation and | |
347 | ;; "u" when doing an unsigned operation. | |
348 | (define_code_attr u [(sign_extend "") (zero_extend "u") | |
349 | (gt "") (gtu "u") | |
350 | (ge "") (geu "u") | |
351 | (lt "") (ltu "u") | |
352 | (le "") (leu "u")]) | |
353 | ||
354 | ;; <su> is like <u>, but the signed form expands to "s" rather than "". | |
355 | (define_code_attr su [(sign_extend "s") (zero_extend "u")]) | |
356 | ||
357 | ;; <optab> expands to the name of the optab for a particular code. | |
358 | (define_code_attr optab [(ashift "ashl") | |
359 | (ashiftrt "ashr") | |
360 | (lshiftrt "lshr") | |
361 | (div "div") | |
362 | (mod "mod") | |
363 | (udiv "udiv") | |
364 | (umod "umod") | |
365 | (ge "ge") | |
366 | (le "le") | |
367 | (gt "gt") | |
368 | (lt "lt") | |
369 | (ior "ior") | |
370 | (xor "xor") | |
371 | (and "and") | |
372 | (plus "add") | |
373 | (minus "sub")]) | |
374 | ||
375 | ;; <insn> expands to the name of the insn that implements a particular code. | |
376 | (define_code_attr insn [(ashift "sll") | |
377 | (ashiftrt "sra") | |
378 | (lshiftrt "srl") | |
379 | (div "div") | |
380 | (mod "rem") | |
381 | (udiv "divu") | |
382 | (umod "remu") | |
383 | (ior "or") | |
384 | (xor "xor") | |
385 | (and "and") | |
386 | (plus "add") | |
387 | (minus "sub")]) | |
388 | ||
389 | ;; Ghost instructions produce no real code and introduce no hazards. | |
390 | ;; They exist purely to express an effect on dataflow. | |
391 | (define_insn_reservation "ghost" 0 | |
392 | (eq_attr "type" "ghost") | |
393 | "nothing") | |
394 | ||
395 | ;; | |
396 | ;; .................... | |
397 | ;; | |
398 | ;; ADDITION | |
399 | ;; | |
400 | ;; .................... | |
401 | ;; | |
402 | ||
403 | (define_insn "add<mode>3" | |
404 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
405 | (plus:ANYF (match_operand:ANYF 1 "register_operand" " f") | |
406 | (match_operand:ANYF 2 "register_operand" " f")))] | |
407 | "TARGET_HARD_FLOAT" | |
408 | "fadd.<fmt>\t%0,%1,%2" | |
409 | [(set_attr "type" "fadd") | |
410 | (set_attr "mode" "<UNITMODE>")]) | |
411 | ||
412 | (define_insn "addsi3" | |
413 | [(set (match_operand:SI 0 "register_operand" "=r,r") | |
414 | (plus:SI (match_operand:SI 1 "register_operand" " r,r") | |
415 | (match_operand:SI 2 "arith_operand" " r,I")))] | |
416 | "" | |
417 | { return TARGET_64BIT ? "add%i2w\t%0,%1,%2" : "add%i2\t%0,%1,%2"; } | |
418 | [(set_attr "type" "arith") | |
419 | (set_attr "mode" "SI")]) | |
420 | ||
421 | (define_insn "adddi3" | |
422 | [(set (match_operand:DI 0 "register_operand" "=r,r") | |
423 | (plus:DI (match_operand:DI 1 "register_operand" " r,r") | |
424 | (match_operand:DI 2 "arith_operand" " r,I")))] | |
425 | "TARGET_64BIT" | |
426 | "add%i2\t%0,%1,%2" | |
427 | [(set_attr "type" "arith") | |
428 | (set_attr "mode" "DI")]) | |
429 | ||
430 | (define_insn "*addsi3_extended" | |
431 | [(set (match_operand:DI 0 "register_operand" "=r,r") | |
432 | (sign_extend:DI | |
433 | (plus:SI (match_operand:SI 1 "register_operand" " r,r") | |
434 | (match_operand:SI 2 "arith_operand" " r,I"))))] | |
435 | "TARGET_64BIT" | |
436 | "add%i2w\t%0,%1,%2" | |
437 | [(set_attr "type" "arith") | |
438 | (set_attr "mode" "SI")]) | |
439 | ||
440 | (define_insn "*addsi3_extended2" | |
441 | [(set (match_operand:DI 0 "register_operand" "=r,r") | |
442 | (sign_extend:DI | |
443 | (subreg:SI (plus:DI (match_operand:DI 1 "register_operand" " r,r") | |
444 | (match_operand:DI 2 "arith_operand" " r,I")) | |
445 | 0)))] | |
446 | "TARGET_64BIT" | |
447 | "add%i2w\t%0,%1,%2" | |
448 | [(set_attr "type" "arith") | |
449 | (set_attr "mode" "SI")]) | |
450 | ||
451 | ;; | |
452 | ;; .................... | |
453 | ;; | |
454 | ;; SUBTRACTION | |
455 | ;; | |
456 | ;; .................... | |
457 | ;; | |
458 | ||
459 | (define_insn "sub<mode>3" | |
460 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
461 | (minus:ANYF (match_operand:ANYF 1 "register_operand" " f") | |
462 | (match_operand:ANYF 2 "register_operand" " f")))] | |
463 | "TARGET_HARD_FLOAT" | |
464 | "fsub.<fmt>\t%0,%1,%2" | |
465 | [(set_attr "type" "fadd") | |
466 | (set_attr "mode" "<UNITMODE>")]) | |
467 | ||
468 | (define_insn "subdi3" | |
469 | [(set (match_operand:DI 0 "register_operand" "= r") | |
470 | (minus:DI (match_operand:DI 1 "reg_or_0_operand" " rJ") | |
471 | (match_operand:DI 2 "register_operand" " r")))] | |
472 | "TARGET_64BIT" | |
473 | "sub\t%0,%z1,%2" | |
474 | [(set_attr "type" "arith") | |
475 | (set_attr "mode" "DI")]) | |
476 | ||
477 | (define_insn "subsi3" | |
478 | [(set (match_operand:SI 0 "register_operand" "= r") | |
479 | (minus:SI (match_operand:SI 1 "reg_or_0_operand" " rJ") | |
480 | (match_operand:SI 2 "register_operand" " r")))] | |
481 | "" | |
482 | { return TARGET_64BIT ? "subw\t%0,%z1,%2" : "sub\t%0,%z1,%2"; } | |
483 | [(set_attr "type" "arith") | |
484 | (set_attr "mode" "SI")]) | |
485 | ||
486 | (define_insn "*subsi3_extended" | |
487 | [(set (match_operand:DI 0 "register_operand" "= r") | |
488 | (sign_extend:DI | |
489 | (minus:SI (match_operand:SI 1 "reg_or_0_operand" " rJ") | |
490 | (match_operand:SI 2 "register_operand" " r"))))] | |
491 | "TARGET_64BIT" | |
492 | "subw\t%0,%z1,%2" | |
493 | [(set_attr "type" "arith") | |
494 | (set_attr "mode" "SI")]) | |
495 | ||
496 | (define_insn "*subsi3_extended2" | |
497 | [(set (match_operand:DI 0 "register_operand" "=r") | |
498 | (sign_extend:DI | |
499 | (subreg:SI (minus:DI (match_operand:DI 1 "reg_or_0_operand" " r") | |
500 | (match_operand:DI 2 "register_operand" " r")) | |
501 | 0)))] | |
502 | "TARGET_64BIT" | |
503 | "subw\t%0,%z1,%2" | |
504 | [(set_attr "type" "arith") | |
505 | (set_attr "mode" "SI")]) | |
506 | ||
507 | ;; | |
508 | ;; .................... | |
509 | ;; | |
510 | ;; MULTIPLICATION | |
511 | ;; | |
512 | ;; .................... | |
513 | ;; | |
514 | ||
515 | (define_insn "mul<mode>3" | |
516 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
517 | (mult:ANYF (match_operand:ANYF 1 "register_operand" " f") | |
518 | (match_operand:ANYF 2 "register_operand" " f")))] | |
519 | "TARGET_HARD_FLOAT" | |
520 | "fmul.<fmt>\t%0,%1,%2" | |
521 | [(set_attr "type" "fmul") | |
522 | (set_attr "mode" "<UNITMODE>")]) | |
523 | ||
524 | (define_insn "mulsi3" | |
525 | [(set (match_operand:SI 0 "register_operand" "=r") | |
526 | (mult:SI (match_operand:SI 1 "register_operand" " r") | |
527 | (match_operand:SI 2 "register_operand" " r")))] | |
528 | "TARGET_MUL" | |
529 | { return TARGET_64BIT ? "mulw\t%0,%1,%2" : "mul\t%0,%1,%2"; } | |
530 | [(set_attr "type" "imul") | |
531 | (set_attr "mode" "SI")]) | |
532 | ||
533 | (define_insn "muldi3" | |
534 | [(set (match_operand:DI 0 "register_operand" "=r") | |
535 | (mult:DI (match_operand:DI 1 "register_operand" " r") | |
536 | (match_operand:DI 2 "register_operand" " r")))] | |
537 | "TARGET_MUL && TARGET_64BIT" | |
538 | "mul\t%0,%1,%2" | |
539 | [(set_attr "type" "imul") | |
540 | (set_attr "mode" "DI")]) | |
541 | ||
542 | (define_insn "*mulsi3_extended" | |
543 | [(set (match_operand:DI 0 "register_operand" "=r") | |
544 | (sign_extend:DI | |
545 | (mult:SI (match_operand:SI 1 "register_operand" " r") | |
546 | (match_operand:SI 2 "register_operand" " r"))))] | |
547 | "TARGET_MUL && TARGET_64BIT" | |
548 | "mulw\t%0,%1,%2" | |
549 | [(set_attr "type" "imul") | |
550 | (set_attr "mode" "SI")]) | |
551 | ||
552 | (define_insn "*mulsi3_extended2" | |
553 | [(set (match_operand:DI 0 "register_operand" "=r") | |
554 | (sign_extend:DI | |
555 | (subreg:SI (mult:DI (match_operand:DI 1 "register_operand" " r") | |
556 | (match_operand:DI 2 "register_operand" " r")) | |
557 | 0)))] | |
558 | "TARGET_MUL && TARGET_64BIT" | |
559 | "mulw\t%0,%1,%2" | |
560 | [(set_attr "type" "imul") | |
561 | (set_attr "mode" "SI")]) | |
562 | ||
563 | ;; | |
564 | ;; ........................ | |
565 | ;; | |
566 | ;; MULTIPLICATION HIGH-PART | |
567 | ;; | |
568 | ;; ........................ | |
569 | ;; | |
570 | ||
571 | ||
572 | (define_expand "<u>mulditi3" | |
573 | [(set (match_operand:TI 0 "register_operand") | |
574 | (mult:TI (any_extend:TI (match_operand:DI 1 "register_operand")) | |
575 | (any_extend:TI (match_operand:DI 2 "register_operand"))))] | |
576 | "TARGET_MUL && TARGET_64BIT" | |
577 | { | |
578 | rtx low = gen_reg_rtx (DImode); | |
579 | emit_insn (gen_muldi3 (low, operands[1], operands[2])); | |
580 | ||
581 | rtx high = gen_reg_rtx (DImode); | |
582 | emit_insn (gen_<u>muldi3_highpart (high, operands[1], operands[2])); | |
583 | ||
584 | emit_move_insn (gen_lowpart (DImode, operands[0]), low); | |
585 | emit_move_insn (gen_highpart (DImode, operands[0]), high); | |
586 | DONE; | |
587 | }) | |
588 | ||
589 | (define_insn "<u>muldi3_highpart" | |
590 | [(set (match_operand:DI 0 "register_operand" "=r") | |
591 | (truncate:DI | |
592 | (lshiftrt:TI | |
593 | (mult:TI (any_extend:TI | |
594 | (match_operand:DI 1 "register_operand" " r")) | |
595 | (any_extend:TI | |
596 | (match_operand:DI 2 "register_operand" " r"))) | |
597 | (const_int 64))))] | |
598 | "TARGET_MUL && TARGET_64BIT" | |
599 | "mulh<u>\t%0,%1,%2" | |
600 | [(set_attr "type" "imul") | |
601 | (set_attr "mode" "DI")]) | |
602 | ||
603 | (define_expand "usmulditi3" | |
604 | [(set (match_operand:TI 0 "register_operand") | |
605 | (mult:TI (zero_extend:TI (match_operand:DI 1 "register_operand")) | |
606 | (sign_extend:TI (match_operand:DI 2 "register_operand"))))] | |
607 | "TARGET_MUL && TARGET_64BIT" | |
608 | { | |
609 | rtx low = gen_reg_rtx (DImode); | |
610 | emit_insn (gen_muldi3 (low, operands[1], operands[2])); | |
611 | ||
612 | rtx high = gen_reg_rtx (DImode); | |
613 | emit_insn (gen_usmuldi3_highpart (high, operands[1], operands[2])); | |
614 | ||
615 | emit_move_insn (gen_lowpart (DImode, operands[0]), low); | |
616 | emit_move_insn (gen_highpart (DImode, operands[0]), high); | |
617 | DONE; | |
618 | }) | |
619 | ||
620 | (define_insn "usmuldi3_highpart" | |
621 | [(set (match_operand:DI 0 "register_operand" "=r") | |
622 | (truncate:DI | |
623 | (lshiftrt:TI | |
624 | (mult:TI (zero_extend:TI | |
625 | (match_operand:DI 1 "register_operand" "r")) | |
626 | (sign_extend:TI | |
627 | (match_operand:DI 2 "register_operand" " r"))) | |
628 | (const_int 64))))] | |
629 | "TARGET_MUL && TARGET_64BIT" | |
630 | "mulhsu\t%0,%2,%1" | |
631 | [(set_attr "type" "imul") | |
632 | (set_attr "mode" "DI")]) | |
633 | ||
634 | (define_expand "<u>mulsidi3" | |
635 | [(set (match_operand:DI 0 "register_operand" "=r") | |
636 | (mult:DI (any_extend:DI | |
637 | (match_operand:SI 1 "register_operand" " r")) | |
638 | (any_extend:DI | |
639 | (match_operand:SI 2 "register_operand" " r"))))] | |
640 | "TARGET_MUL && !TARGET_64BIT" | |
641 | { | |
642 | rtx temp = gen_reg_rtx (SImode); | |
643 | emit_insn (gen_mulsi3 (temp, operands[1], operands[2])); | |
644 | emit_insn (gen_<u>mulsi3_highpart (riscv_subword (operands[0], true), | |
645 | operands[1], operands[2])); | |
646 | emit_insn (gen_movsi (riscv_subword (operands[0], false), temp)); | |
647 | DONE; | |
648 | }) | |
649 | ||
650 | (define_insn "<u>mulsi3_highpart" | |
651 | [(set (match_operand:SI 0 "register_operand" "=r") | |
652 | (truncate:SI | |
653 | (lshiftrt:DI | |
654 | (mult:DI (any_extend:DI | |
655 | (match_operand:SI 1 "register_operand" " r")) | |
656 | (any_extend:DI | |
657 | (match_operand:SI 2 "register_operand" " r"))) | |
658 | (const_int 32))))] | |
659 | "TARGET_MUL && !TARGET_64BIT" | |
660 | "mulh<u>\t%0,%1,%2" | |
661 | [(set_attr "type" "imul") | |
662 | (set_attr "mode" "SI")]) | |
663 | ||
664 | ||
665 | (define_expand "usmulsidi3" | |
666 | [(set (match_operand:DI 0 "register_operand" "=r") | |
667 | (mult:DI (zero_extend:DI | |
668 | (match_operand:SI 1 "register_operand" " r")) | |
669 | (sign_extend:DI | |
670 | (match_operand:SI 2 "register_operand" " r"))))] | |
671 | "TARGET_MUL && !TARGET_64BIT" | |
672 | { | |
673 | rtx temp = gen_reg_rtx (SImode); | |
674 | emit_insn (gen_mulsi3 (temp, operands[1], operands[2])); | |
675 | emit_insn (gen_usmulsi3_highpart (riscv_subword (operands[0], true), | |
676 | operands[1], operands[2])); | |
677 | emit_insn (gen_movsi (riscv_subword (operands[0], false), temp)); | |
678 | DONE; | |
679 | }) | |
680 | ||
681 | (define_insn "usmulsi3_highpart" | |
682 | [(set (match_operand:SI 0 "register_operand" "=r") | |
683 | (truncate:SI | |
684 | (lshiftrt:DI | |
685 | (mult:DI (zero_extend:DI | |
686 | (match_operand:SI 1 "register_operand" " r")) | |
687 | (sign_extend:DI | |
688 | (match_operand:SI 2 "register_operand" " r"))) | |
689 | (const_int 32))))] | |
690 | "TARGET_MUL && !TARGET_64BIT" | |
691 | "mulhsu\t%0,%2,%1" | |
692 | [(set_attr "type" "imul") | |
693 | (set_attr "mode" "SI")]) | |
694 | ||
695 | ;; | |
696 | ;; .................... | |
697 | ;; | |
698 | ;; DIVISION and REMAINDER | |
699 | ;; | |
700 | ;; .................... | |
701 | ;; | |
702 | ||
703 | (define_insn "<optab>si3" | |
704 | [(set (match_operand:SI 0 "register_operand" "=r") | |
705 | (any_div:SI (match_operand:SI 1 "register_operand" " r") | |
706 | (match_operand:SI 2 "register_operand" " r")))] | |
707 | "TARGET_DIV" | |
708 | { return TARGET_64BIT ? "<insn>%i2w\t%0,%1,%2" : "<insn>%i2\t%0,%1,%2"; } | |
709 | [(set_attr "type" "idiv") | |
710 | (set_attr "mode" "SI")]) | |
711 | ||
712 | (define_insn "<optab>di3" | |
713 | [(set (match_operand:DI 0 "register_operand" "=r") | |
714 | (any_div:DI (match_operand:DI 1 "register_operand" " r") | |
715 | (match_operand:DI 2 "register_operand" " r")))] | |
716 | "TARGET_DIV && TARGET_64BIT" | |
717 | "<insn>%i2\t%0,%1,%2" | |
718 | [(set_attr "type" "idiv") | |
719 | (set_attr "mode" "DI")]) | |
720 | ||
721 | (define_insn "*<optab>si3_extended" | |
722 | [(set (match_operand:DI 0 "register_operand" "=r") | |
723 | (sign_extend:DI | |
724 | (any_div:SI (match_operand:SI 1 "register_operand" " r") | |
725 | (match_operand:SI 2 "register_operand" " r"))))] | |
726 | "TARGET_DIV && TARGET_64BIT" | |
727 | "<insn>%i2w\t%0,%1,%2" | |
728 | [(set_attr "type" "idiv") | |
729 | (set_attr "mode" "DI")]) | |
730 | ||
731 | (define_insn "div<mode>3" | |
732 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
733 | (div:ANYF (match_operand:ANYF 1 "register_operand" " f") | |
734 | (match_operand:ANYF 2 "register_operand" " f")))] | |
735 | "TARGET_HARD_FLOAT && TARGET_FDIV" | |
736 | "fdiv.<fmt>\t%0,%1,%2" | |
737 | [(set_attr "type" "fdiv") | |
738 | (set_attr "mode" "<UNITMODE>")]) | |
739 | ||
740 | ;; | |
741 | ;; .................... | |
742 | ;; | |
743 | ;; SQUARE ROOT | |
744 | ;; | |
745 | ;; .................... | |
746 | ||
747 | (define_insn "sqrt<mode>2" | |
748 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
749 | (sqrt:ANYF (match_operand:ANYF 1 "register_operand" " f")))] | |
750 | "TARGET_HARD_FLOAT && TARGET_FDIV" | |
751 | { | |
752 | return "fsqrt.<fmt>\t%0,%1"; | |
753 | } | |
754 | [(set_attr "type" "fsqrt") | |
755 | (set_attr "mode" "<UNITMODE>")]) | |
756 | ||
757 | ;; Floating point multiply accumulate instructions. | |
758 | ||
759 | ;; a * b + c | |
760 | (define_insn "fma<mode>4" | |
761 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
762 | (fma:ANYF (match_operand:ANYF 1 "register_operand" " f") | |
763 | (match_operand:ANYF 2 "register_operand" " f") | |
764 | (match_operand:ANYF 3 "register_operand" " f")))] | |
765 | "TARGET_HARD_FLOAT" | |
766 | "fmadd.<fmt>\t%0,%1,%2,%3" | |
767 | [(set_attr "type" "fmadd") | |
768 | (set_attr "mode" "<UNITMODE>")]) | |
769 | ||
770 | ;; a * b - c | |
771 | (define_insn "fms<mode>4" | |
772 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
773 | (fma:ANYF (match_operand:ANYF 1 "register_operand" " f") | |
774 | (match_operand:ANYF 2 "register_operand" " f") | |
775 | (neg:ANYF (match_operand:ANYF 3 "register_operand" " f"))))] | |
776 | "TARGET_HARD_FLOAT" | |
777 | "fmsub.<fmt>\t%0,%1,%2,%3" | |
778 | [(set_attr "type" "fmadd") | |
779 | (set_attr "mode" "<UNITMODE>")]) | |
780 | ||
781 | ;; -a * b - c | |
782 | (define_insn "fnms<mode>4" | |
783 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
784 | (fma:ANYF | |
785 | (neg:ANYF (match_operand:ANYF 1 "register_operand" " f")) | |
786 | (match_operand:ANYF 2 "register_operand" " f") | |
787 | (neg:ANYF (match_operand:ANYF 3 "register_operand" " f"))))] | |
788 | "TARGET_HARD_FLOAT" | |
789 | "fnmadd.<fmt>\t%0,%1,%2,%3" | |
790 | [(set_attr "type" "fmadd") | |
791 | (set_attr "mode" "<UNITMODE>")]) | |
792 | ||
793 | ;; -a * b + c | |
794 | (define_insn "fnma<mode>4" | |
795 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
796 | (fma:ANYF | |
797 | (neg:ANYF (match_operand:ANYF 1 "register_operand" " f")) | |
798 | (match_operand:ANYF 2 "register_operand" " f") | |
799 | (match_operand:ANYF 3 "register_operand" " f")))] | |
800 | "TARGET_HARD_FLOAT" | |
801 | "fnmsub.<fmt>\t%0,%1,%2,%3" | |
802 | [(set_attr "type" "fmadd") | |
803 | (set_attr "mode" "<UNITMODE>")]) | |
804 | ||
805 | ;; -(-a * b - c), modulo signed zeros | |
806 | (define_insn "*fma<mode>4" | |
807 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
808 | (neg:ANYF | |
809 | (fma:ANYF | |
810 | (neg:ANYF (match_operand:ANYF 1 "register_operand" " f")) | |
811 | (match_operand:ANYF 2 "register_operand" " f") | |
812 | (neg:ANYF (match_operand:ANYF 3 "register_operand" " f")))))] | |
813 | "TARGET_HARD_FLOAT && !HONOR_SIGNED_ZEROS (<MODE>mode)" | |
814 | "fmadd.<fmt>\t%0,%1,%2,%3" | |
815 | [(set_attr "type" "fmadd") | |
816 | (set_attr "mode" "<UNITMODE>")]) | |
817 | ||
818 | ;; -(-a * b + c), modulo signed zeros | |
819 | (define_insn "*fms<mode>4" | |
820 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
821 | (neg:ANYF | |
822 | (fma:ANYF | |
823 | (neg:ANYF (match_operand:ANYF 1 "register_operand" " f")) | |
824 | (match_operand:ANYF 2 "register_operand" " f") | |
825 | (match_operand:ANYF 3 "register_operand" " f"))))] | |
826 | "TARGET_HARD_FLOAT && !HONOR_SIGNED_ZEROS (<MODE>mode)" | |
827 | "fmsub.<fmt>\t%0,%1,%2,%3" | |
828 | [(set_attr "type" "fmadd") | |
829 | (set_attr "mode" "<UNITMODE>")]) | |
830 | ||
831 | ;; -(a * b + c), modulo signed zeros | |
832 | (define_insn "*fnms<mode>4" | |
833 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
834 | (neg:ANYF | |
835 | (fma:ANYF | |
836 | (match_operand:ANYF 1 "register_operand" " f") | |
837 | (match_operand:ANYF 2 "register_operand" " f") | |
838 | (match_operand:ANYF 3 "register_operand" " f"))))] | |
839 | "TARGET_HARD_FLOAT && !HONOR_SIGNED_ZEROS (<MODE>mode)" | |
840 | "fnmadd.<fmt>\t%0,%1,%2,%3" | |
841 | [(set_attr "type" "fmadd") | |
842 | (set_attr "mode" "<UNITMODE>")]) | |
843 | ||
844 | ;; -(a * b - c), modulo signed zeros | |
845 | (define_insn "*fnma<mode>4" | |
846 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
847 | (neg:ANYF | |
848 | (fma:ANYF | |
849 | (match_operand:ANYF 1 "register_operand" " f") | |
850 | (match_operand:ANYF 2 "register_operand" " f") | |
851 | (neg:ANYF (match_operand:ANYF 3 "register_operand" " f")))))] | |
852 | "TARGET_HARD_FLOAT && !HONOR_SIGNED_ZEROS (<MODE>mode)" | |
853 | "fnmsub.<fmt>\t%0,%1,%2,%3" | |
854 | [(set_attr "type" "fmadd") | |
855 | (set_attr "mode" "<UNITMODE>")]) | |
856 | ||
857 | ;; | |
858 | ;; .................... | |
859 | ;; | |
860 | ;; SIGN INJECTION | |
861 | ;; | |
862 | ;; .................... | |
863 | ||
864 | (define_insn "abs<mode>2" | |
865 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
866 | (abs:ANYF (match_operand:ANYF 1 "register_operand" " f")))] | |
867 | "TARGET_HARD_FLOAT" | |
868 | "fabs.<fmt>\t%0,%1" | |
869 | [(set_attr "type" "fmove") | |
870 | (set_attr "mode" "<UNITMODE>")]) | |
871 | ||
872 | (define_insn "copysign<mode>3" | |
873 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
874 | (unspec:ANYF [(match_operand:ANYF 1 "register_operand" " f") | |
875 | (match_operand:ANYF 2 "register_operand" " f")] | |
876 | UNSPEC_COPYSIGN))] | |
877 | "TARGET_HARD_FLOAT" | |
878 | "fsgnj.<fmt>\t%0,%1,%2" | |
879 | [(set_attr "type" "fmove") | |
880 | (set_attr "mode" "<UNITMODE>")]) | |
881 | ||
882 | (define_insn "neg<mode>2" | |
883 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
884 | (neg:ANYF (match_operand:ANYF 1 "register_operand" " f")))] | |
885 | "TARGET_HARD_FLOAT" | |
886 | "fneg.<fmt>\t%0,%1" | |
887 | [(set_attr "type" "fmove") | |
888 | (set_attr "mode" "<UNITMODE>")]) | |
889 | ||
890 | ;; | |
891 | ;; .................... | |
892 | ;; | |
893 | ;; MIN/MAX | |
894 | ;; | |
895 | ;; .................... | |
896 | ||
897 | (define_insn "smin<mode>3" | |
898 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
899 | (smin:ANYF (match_operand:ANYF 1 "register_operand" " f") | |
900 | (match_operand:ANYF 2 "register_operand" " f")))] | |
901 | "TARGET_HARD_FLOAT" | |
902 | "fmin.<fmt>\t%0,%1,%2" | |
903 | [(set_attr "type" "fmove") | |
904 | (set_attr "mode" "<UNITMODE>")]) | |
905 | ||
906 | (define_insn "smax<mode>3" | |
907 | [(set (match_operand:ANYF 0 "register_operand" "=f") | |
908 | (smax:ANYF (match_operand:ANYF 1 "register_operand" " f") | |
909 | (match_operand:ANYF 2 "register_operand" " f")))] | |
910 | "TARGET_HARD_FLOAT" | |
911 | "fmax.<fmt>\t%0,%1,%2" | |
912 | [(set_attr "type" "fmove") | |
913 | (set_attr "mode" "<UNITMODE>")]) | |
914 | ||
915 | ;; | |
916 | ;; .................... | |
917 | ;; | |
918 | ;; LOGICAL | |
919 | ;; | |
920 | ;; .................... | |
921 | ;; | |
922 | ||
923 | ;; For RV64, we don't expose the SImode operations to the rtl expanders, | |
924 | ;; but SImode versions exist for combine. | |
925 | ||
926 | (define_insn "<optab><mode>3" | |
927 | [(set (match_operand:X 0 "register_operand" "=r,r") | |
928 | (any_bitwise:X (match_operand:X 1 "register_operand" "%r,r") | |
929 | (match_operand:X 2 "arith_operand" " r,I")))] | |
930 | "" | |
931 | "<insn>%i2\t%0,%1,%2" | |
932 | [(set_attr "type" "logical") | |
933 | (set_attr "mode" "<MODE>")]) | |
934 | ||
935 | (define_insn "*<optab>si3_internal" | |
936 | [(set (match_operand:SI 0 "register_operand" "=r,r") | |
937 | (any_bitwise:SI (match_operand:SI 1 "register_operand" "%r,r") | |
938 | (match_operand:SI 2 "arith_operand" " r,I")))] | |
939 | "TARGET_64BIT" | |
940 | "<insn>%i2\t%0,%1,%2" | |
941 | [(set_attr "type" "logical") | |
942 | (set_attr "mode" "SI")]) | |
943 | ||
944 | (define_insn "one_cmpl<mode>2" | |
945 | [(set (match_operand:X 0 "register_operand" "=r") | |
946 | (not:X (match_operand:X 1 "register_operand" " r")))] | |
947 | "" | |
948 | "not\t%0,%1" | |
949 | [(set_attr "type" "logical") | |
950 | (set_attr "mode" "<MODE>")]) | |
951 | ||
952 | (define_insn "*one_cmplsi2_internal" | |
953 | [(set (match_operand:SI 0 "register_operand" "=r") | |
954 | (not:SI (match_operand:SI 1 "register_operand" " r")))] | |
955 | "TARGET_64BIT" | |
956 | "not\t%0,%1" | |
957 | [(set_attr "type" "logical") | |
958 | (set_attr "mode" "SI")]) | |
959 | ||
960 | ;; | |
961 | ;; .................... | |
962 | ;; | |
963 | ;; TRUNCATION | |
964 | ;; | |
965 | ;; .................... | |
966 | ||
967 | (define_insn "truncdfsf2" | |
968 | [(set (match_operand:SF 0 "register_operand" "=f") | |
969 | (float_truncate:SF | |
970 | (match_operand:DF 1 "register_operand" " f")))] | |
971 | "TARGET_DOUBLE_FLOAT" | |
972 | "fcvt.s.d\t%0,%1" | |
973 | [(set_attr "type" "fcvt") | |
974 | (set_attr "mode" "SF")]) | |
975 | ||
976 | ;; | |
977 | ;; .................... | |
978 | ;; | |
979 | ;; ZERO EXTENSION | |
980 | ;; | |
981 | ;; .................... | |
982 | ||
983 | ;; Extension insns. | |
984 | ||
985 | (define_insn_and_split "zero_extendsidi2" | |
986 | [(set (match_operand:DI 0 "register_operand" "=r,r") | |
987 | (zero_extend:DI | |
988 | (match_operand:SI 1 "nonimmediate_operand" " r,m")))] | |
989 | "TARGET_64BIT" | |
990 | "@ | |
991 | # | |
992 | lwu\t%0,%1" | |
993 | "&& reload_completed && REG_P (operands[1])" | |
994 | [(set (match_dup 0) | |
995 | (ashift:DI (match_dup 1) (const_int 32))) | |
996 | (set (match_dup 0) | |
997 | (lshiftrt:DI (match_dup 0) (const_int 32)))] | |
998 | { operands[1] = gen_lowpart (DImode, operands[1]); } | |
999 | [(set_attr "move_type" "shift_shift,load") | |
1000 | (set_attr "mode" "DI")]) | |
1001 | ||
1002 | (define_insn_and_split "zero_extendhi<GPR:mode>2" | |
1003 | [(set (match_operand:GPR 0 "register_operand" "=r,r") | |
1004 | (zero_extend:GPR | |
1005 | (match_operand:HI 1 "nonimmediate_operand" " r,m")))] | |
1006 | "" | |
1007 | "@ | |
1008 | # | |
1009 | lhu\t%0,%1" | |
1010 | "&& reload_completed && REG_P (operands[1])" | |
1011 | [(set (match_dup 0) | |
1012 | (ashift:GPR (match_dup 1) (match_dup 2))) | |
1013 | (set (match_dup 0) | |
1014 | (lshiftrt:GPR (match_dup 0) (match_dup 2)))] | |
1015 | { | |
1016 | operands[1] = gen_lowpart (<GPR:MODE>mode, operands[1]); | |
1017 | operands[2] = GEN_INT(GET_MODE_BITSIZE(<GPR:MODE>mode) - 16); | |
1018 | } | |
1019 | [(set_attr "move_type" "shift_shift,load") | |
1020 | (set_attr "mode" "<GPR:MODE>")]) | |
1021 | ||
1022 | (define_insn "zero_extendqi<SUPERQI:mode>2" | |
1023 | [(set (match_operand:SUPERQI 0 "register_operand" "=r,r") | |
1024 | (zero_extend:SUPERQI | |
1025 | (match_operand:QI 1 "nonimmediate_operand" " r,m")))] | |
1026 | "" | |
1027 | "@ | |
1028 | andi\t%0,%1,0xff | |
1029 | lbu\t%0,%1" | |
1030 | [(set_attr "move_type" "andi,load") | |
1031 | (set_attr "mode" "<SUPERQI:MODE>")]) | |
1032 | ||
1033 | ;; | |
1034 | ;; .................... | |
1035 | ;; | |
1036 | ;; SIGN EXTENSION | |
1037 | ;; | |
1038 | ;; .................... | |
1039 | ||
1040 | (define_insn "extendsidi2" | |
1041 | [(set (match_operand:DI 0 "register_operand" "=r,r") | |
1042 | (sign_extend:DI | |
1043 | (match_operand:SI 1 "nonimmediate_operand" " r,m")))] | |
1044 | "TARGET_64BIT" | |
1045 | "@ | |
1046 | sext.w\t%0,%1 | |
1047 | lw\t%0,%1" | |
1048 | [(set_attr "move_type" "move,load") | |
1049 | (set_attr "mode" "DI")]) | |
1050 | ||
1051 | (define_insn_and_split "extend<SHORT:mode><SUPERQI:mode>2" | |
1052 | [(set (match_operand:SUPERQI 0 "register_operand" "=r,r") | |
1053 | (sign_extend:SUPERQI | |
1054 | (match_operand:SHORT 1 "nonimmediate_operand" " r,m")))] | |
1055 | "" | |
1056 | "@ | |
1057 | # | |
1058 | l<SHORT:size>\t%0,%1" | |
1059 | "&& reload_completed && REG_P (operands[1])" | |
1060 | [(set (match_dup 0) (ashift:SI (match_dup 1) (match_dup 2))) | |
1061 | (set (match_dup 0) (ashiftrt:SI (match_dup 0) (match_dup 2)))] | |
1062 | { | |
1063 | operands[0] = gen_lowpart (SImode, operands[0]); | |
1064 | operands[1] = gen_lowpart (SImode, operands[1]); | |
1065 | operands[2] = GEN_INT (GET_MODE_BITSIZE (SImode) | |
1066 | - GET_MODE_BITSIZE (<SHORT:MODE>mode)); | |
1067 | } | |
1068 | [(set_attr "move_type" "shift_shift,load") | |
1069 | (set_attr "mode" "SI")]) | |
1070 | ||
1071 | (define_insn "extendsfdf2" | |
1072 | [(set (match_operand:DF 0 "register_operand" "=f") | |
1073 | (float_extend:DF | |
1074 | (match_operand:SF 1 "register_operand" " f")))] | |
1075 | "TARGET_DOUBLE_FLOAT" | |
1076 | "fcvt.d.s\t%0,%1" | |
1077 | [(set_attr "type" "fcvt") | |
1078 | (set_attr "mode" "DF")]) | |
1079 | ||
1080 | ;; | |
1081 | ;; .................... | |
1082 | ;; | |
1083 | ;; CONVERSIONS | |
1084 | ;; | |
1085 | ;; .................... | |
1086 | ||
1087 | (define_insn "fix_trunc<ANYF:mode><GPR:mode>2" | |
1088 | [(set (match_operand:GPR 0 "register_operand" "=r") | |
1089 | (fix:GPR | |
1090 | (match_operand:ANYF 1 "register_operand" " f")))] | |
1091 | "TARGET_HARD_FLOAT" | |
1092 | "fcvt.<GPR:ifmt>.<ANYF:fmt> %0,%1,rtz" | |
1093 | [(set_attr "type" "fcvt") | |
1094 | (set_attr "mode" "<ANYF:MODE>")]) | |
1095 | ||
1096 | (define_insn "fixuns_trunc<ANYF:mode><GPR:mode>2" | |
1097 | [(set (match_operand:GPR 0 "register_operand" "=r") | |
1098 | (unsigned_fix:GPR | |
1099 | (match_operand:ANYF 1 "register_operand" " f")))] | |
1100 | "TARGET_HARD_FLOAT" | |
1101 | "fcvt.<GPR:ifmt>u.<ANYF:fmt> %0,%1,rtz" | |
1102 | [(set_attr "type" "fcvt") | |
1103 | (set_attr "mode" "<ANYF:MODE>")]) | |
1104 | ||
1105 | (define_insn "float<GPR:mode><ANYF:mode>2" | |
1106 | [(set (match_operand:ANYF 0 "register_operand" "= f") | |
1107 | (float:ANYF | |
1108 | (match_operand:GPR 1 "reg_or_0_operand" " rJ")))] | |
1109 | "TARGET_HARD_FLOAT" | |
1110 | "fcvt.<ANYF:fmt>.<GPR:ifmt>\t%0,%z1" | |
1111 | [(set_attr "type" "fcvt") | |
1112 | (set_attr "mode" "<ANYF:MODE>")]) | |
1113 | ||
1114 | (define_insn "floatuns<GPR:mode><ANYF:mode>2" | |
1115 | [(set (match_operand:ANYF 0 "register_operand" "= f") | |
1116 | (unsigned_float:ANYF | |
1117 | (match_operand:GPR 1 "reg_or_0_operand" " rJ")))] | |
1118 | "TARGET_HARD_FLOAT" | |
1119 | "fcvt.<ANYF:fmt>.<GPR:ifmt>u\t%0,%z1" | |
1120 | [(set_attr "type" "fcvt") | |
1121 | (set_attr "mode" "<ANYF:MODE>")]) | |
1122 | ||
1123 | (define_insn "l<rint_pattern><ANYF:mode><GPR:mode>2" | |
1124 | [(set (match_operand:GPR 0 "register_operand" "=r") | |
1125 | (unspec:GPR | |
1126 | [(match_operand:ANYF 1 "register_operand" " f")] | |
1127 | RINT))] | |
1128 | "TARGET_HARD_FLOAT" | |
1129 | "fcvt.<GPR:ifmt>.<ANYF:fmt> %0,%1,<rint_rm>" | |
1130 | [(set_attr "type" "fcvt") | |
1131 | (set_attr "mode" "<ANYF:MODE>")]) | |
1132 | ||
1133 | ;; | |
1134 | ;; .................... | |
1135 | ;; | |
1136 | ;; DATA MOVEMENT | |
1137 | ;; | |
1138 | ;; .................... | |
1139 | ||
1140 | ;; Lower-level instructions for loading an address from the GOT. | |
1141 | ;; We could use MEMs, but an unspec gives more optimization | |
1142 | ;; opportunities. | |
1143 | ||
1144 | (define_insn "got_load<mode>" | |
1145 | [(set (match_operand:P 0 "register_operand" "=r") | |
1146 | (unspec:P | |
1147 | [(match_operand:P 1 "symbolic_operand" "")] | |
1148 | UNSPEC_LOAD_GOT))] | |
1149 | "" | |
1150 | "la\t%0,%1" | |
1151 | [(set_attr "got" "load") | |
1152 | (set_attr "mode" "<MODE>")]) | |
1153 | ||
1154 | (define_insn "tls_add_tp_le<mode>" | |
1155 | [(set (match_operand:P 0 "register_operand" "=r") | |
1156 | (unspec:P | |
1157 | [(match_operand:P 1 "register_operand" "r") | |
1158 | (match_operand:P 2 "register_operand" "r") | |
1159 | (match_operand:P 3 "symbolic_operand" "")] | |
1160 | UNSPEC_TLS_LE))] | |
1161 | "" | |
1162 | "add\t%0,%1,%2,%%tprel_add(%3)" | |
1163 | [(set_attr "type" "arith") | |
1164 | (set_attr "mode" "<MODE>")]) | |
1165 | ||
1166 | (define_insn "got_load_tls_gd<mode>" | |
1167 | [(set (match_operand:P 0 "register_operand" "=r") | |
1168 | (unspec:P | |
1169 | [(match_operand:P 1 "symbolic_operand" "")] | |
1170 | UNSPEC_TLS_GD))] | |
1171 | "" | |
1172 | "la.tls.gd\t%0,%1" | |
1173 | [(set_attr "got" "load") | |
1174 | (set_attr "mode" "<MODE>")]) | |
1175 | ||
1176 | (define_insn "got_load_tls_ie<mode>" | |
1177 | [(set (match_operand:P 0 "register_operand" "=r") | |
1178 | (unspec:P | |
1179 | [(match_operand:P 1 "symbolic_operand" "")] | |
1180 | UNSPEC_TLS_IE))] | |
1181 | "" | |
1182 | "la.tls.ie\t%0,%1" | |
1183 | [(set_attr "got" "load") | |
1184 | (set_attr "mode" "<MODE>")]) | |
1185 | ||
1186 | (define_insn "auipc<mode>" | |
1187 | [(set (match_operand:P 0 "register_operand" "=r") | |
1188 | (unspec:P | |
1189 | [(match_operand:P 1 "symbolic_operand" "") | |
1190 | (match_operand:P 2 "const_int_operand") | |
1191 | (pc)] | |
1192 | UNSPEC_AUIPC))] | |
1193 | "" | |
1194 | ".LA%2: auipc\t%0,%h1" | |
1195 | [(set_attr "type" "arith") | |
1196 | (set_attr "cannot_copy" "yes")]) | |
1197 | ||
1198 | ;; Instructions for adding the low 12 bits of an address to a register. | |
1199 | ;; Operand 2 is the address: riscv_print_operand works out which relocation | |
1200 | ;; should be applied. | |
1201 | ||
1202 | (define_insn "*low<mode>" | |
1203 | [(set (match_operand:P 0 "register_operand" "=r") | |
1204 | (lo_sum:P (match_operand:P 1 "register_operand" " r") | |
1205 | (match_operand:P 2 "symbolic_operand" "")))] | |
1206 | "" | |
1207 | "addi\t%0,%1,%R2" | |
1208 | [(set_attr "type" "arith") | |
1209 | (set_attr "mode" "<MODE>")]) | |
1210 | ||
1211 | ;; Allow combine to split complex const_int load sequences, using operand 2 | |
1212 | ;; to store the intermediate results. See move_operand for details. | |
1213 | (define_split | |
1214 | [(set (match_operand:GPR 0 "register_operand") | |
1215 | (match_operand:GPR 1 "splittable_const_int_operand")) | |
1216 | (clobber (match_operand:GPR 2 "register_operand"))] | |
1217 | "" | |
1218 | [(const_int 0)] | |
1219 | { | |
1220 | riscv_move_integer (operands[2], operands[0], INTVAL (operands[1])); | |
1221 | DONE; | |
1222 | }) | |
1223 | ||
1224 | ;; Likewise, for symbolic operands. | |
1225 | (define_split | |
1226 | [(set (match_operand:P 0 "register_operand") | |
1227 | (match_operand:P 1)) | |
1228 | (clobber (match_operand:P 2 "register_operand"))] | |
1229 | "riscv_split_symbol (operands[2], operands[1], MAX_MACHINE_MODE, NULL)" | |
1230 | [(set (match_dup 0) (match_dup 3))] | |
1231 | { | |
1232 | riscv_split_symbol (operands[2], operands[1], | |
1233 | MAX_MACHINE_MODE, &operands[3]); | |
1234 | }) | |
1235 | ||
1236 | ;; 64-bit integer moves | |
1237 | ||
1238 | (define_expand "movdi" | |
1239 | [(set (match_operand:DI 0 "") | |
1240 | (match_operand:DI 1 ""))] | |
1241 | "" | |
1242 | { | |
1243 | if (riscv_legitimize_move (DImode, operands[0], operands[1])) | |
1244 | DONE; | |
1245 | }) | |
1246 | ||
1247 | (define_insn "*movdi_32bit" | |
1248 | [(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,r,m, *f,*f,*r,*f,*m") | |
1249 | (match_operand:DI 1 "move_operand" " r,i,m,r,*J*r,*m,*f,*f,*f"))] | |
1250 | "!TARGET_64BIT | |
1251 | && (register_operand (operands[0], DImode) | |
1252 | || reg_or_0_operand (operands[1], DImode))" | |
1253 | { return riscv_output_move (operands[0], operands[1]); } | |
1254 | [(set_attr "move_type" "move,const,load,store,mtc,fpload,mfc,fmove,fpstore") | |
1255 | (set_attr "mode" "DI")]) | |
1256 | ||
1257 | (define_insn "*movdi_64bit" | |
1258 | [(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,r, m, *f,*f,*r,*f,*m") | |
1259 | (match_operand:DI 1 "move_operand" " r,T,m,rJ,*r*J,*m,*f,*f,*f"))] | |
1260 | "TARGET_64BIT | |
1261 | && (register_operand (operands[0], DImode) | |
1262 | || reg_or_0_operand (operands[1], DImode))" | |
1263 | { return riscv_output_move (operands[0], operands[1]); } | |
1264 | [(set_attr "move_type" "move,const,load,store,mtc,fpload,mfc,fmove,fpstore") | |
1265 | (set_attr "mode" "DI")]) | |
1266 | ||
1267 | ;; 32-bit Integer moves | |
1268 | ||
1269 | (define_expand "mov<mode>" | |
1270 | [(set (match_operand:MOVE32 0 "") | |
1271 | (match_operand:MOVE32 1 ""))] | |
1272 | "" | |
1273 | { | |
1274 | if (riscv_legitimize_move (<MODE>mode, operands[0], operands[1])) | |
1275 | DONE; | |
1276 | }) | |
1277 | ||
1278 | (define_insn "*movsi_internal" | |
1279 | [(set (match_operand:SI 0 "nonimmediate_operand" "=r,r,r, m, *f,*f,*r,*m") | |
1280 | (match_operand:SI 1 "move_operand" " r,T,m,rJ,*r*J,*m,*f,*f"))] | |
1281 | "(register_operand (operands[0], SImode) | |
1282 | || reg_or_0_operand (operands[1], SImode))" | |
1283 | { return riscv_output_move (operands[0], operands[1]); } | |
1284 | [(set_attr "move_type" "move,const,load,store,mtc,fpload,mfc,fpstore") | |
1285 | (set_attr "mode" "SI")]) | |
1286 | ||
1287 | ;; 16-bit Integer moves | |
1288 | ||
1289 | ;; Unlike most other insns, the move insns can't be split with | |
1290 | ;; different predicates, because register spilling and other parts of | |
1291 | ;; the compiler, have memoized the insn number already. | |
1292 | ;; Unsigned loads are used because LOAD_EXTEND_OP returns ZERO_EXTEND. | |
1293 | ||
1294 | (define_expand "movhi" | |
1295 | [(set (match_operand:HI 0 "") | |
1296 | (match_operand:HI 1 ""))] | |
1297 | "" | |
1298 | { | |
1299 | if (riscv_legitimize_move (HImode, operands[0], operands[1])) | |
1300 | DONE; | |
1301 | }) | |
1302 | ||
1303 | (define_insn "*movhi_internal" | |
1304 | [(set (match_operand:HI 0 "nonimmediate_operand" "=r,r,r, m, *f,*r") | |
1305 | (match_operand:HI 1 "move_operand" " r,T,m,rJ,*r*J,*f"))] | |
1306 | "(register_operand (operands[0], HImode) | |
1307 | || reg_or_0_operand (operands[1], HImode))" | |
1308 | { return riscv_output_move (operands[0], operands[1]); } | |
1309 | [(set_attr "move_type" "move,const,load,store,mtc,mfc") | |
1310 | (set_attr "mode" "HI")]) | |
1311 | ||
1312 | ;; HImode constant generation; see riscv_move_integer for details. | |
1313 | ;; si+si->hi without truncation is legal because of | |
1314 | ;; TARGET_TRULY_NOOP_TRUNCATION. | |
1315 | ||
1316 | (define_insn "*add<mode>hi3" | |
1317 | [(set (match_operand:HI 0 "register_operand" "=r,r") | |
1318 | (plus:HI (match_operand:HISI 1 "register_operand" " r,r") | |
1319 | (match_operand:HISI 2 "arith_operand" " r,I")))] | |
1320 | "" | |
1321 | { return TARGET_64BIT ? "add%i2w\t%0,%1,%2" : "add%i2\t%0,%1,%2"; } | |
1322 | [(set_attr "type" "arith") | |
1323 | (set_attr "mode" "HI")]) | |
1324 | ||
1325 | (define_insn "*xor<mode>hi3" | |
1326 | [(set (match_operand:HI 0 "register_operand" "=r,r") | |
1327 | (xor:HI (match_operand:HISI 1 "register_operand" " r,r") | |
1328 | (match_operand:HISI 2 "arith_operand" " r,I")))] | |
1329 | "" | |
1330 | "xor%i2\t%0,%1,%2" | |
1331 | [(set_attr "type" "logical") | |
1332 | (set_attr "mode" "HI")]) | |
1333 | ||
1334 | ;; 8-bit Integer moves | |
1335 | ||
1336 | (define_expand "movqi" | |
1337 | [(set (match_operand:QI 0 "") | |
1338 | (match_operand:QI 1 ""))] | |
1339 | "" | |
1340 | { | |
1341 | if (riscv_legitimize_move (QImode, operands[0], operands[1])) | |
1342 | DONE; | |
1343 | }) | |
1344 | ||
1345 | (define_insn "*movqi_internal" | |
1346 | [(set (match_operand:QI 0 "nonimmediate_operand" "=r,r,r, m, *f,*r") | |
1347 | (match_operand:QI 1 "move_operand" " r,I,m,rJ,*r*J,*f"))] | |
1348 | "(register_operand (operands[0], QImode) | |
1349 | || reg_or_0_operand (operands[1], QImode))" | |
1350 | { return riscv_output_move (operands[0], operands[1]); } | |
1351 | [(set_attr "move_type" "move,const,load,store,mtc,mfc") | |
1352 | (set_attr "mode" "QI")]) | |
1353 | ||
1354 | ;; 32-bit floating point moves | |
1355 | ||
1356 | (define_expand "movsf" | |
1357 | [(set (match_operand:SF 0 "") | |
1358 | (match_operand:SF 1 ""))] | |
1359 | "" | |
1360 | { | |
1361 | if (riscv_legitimize_move (SFmode, operands[0], operands[1])) | |
1362 | DONE; | |
1363 | }) | |
1364 | ||
1365 | (define_insn "*movsf_hardfloat" | |
1366 | [(set (match_operand:SF 0 "nonimmediate_operand" "=f,f,f,m,m,*f,*r, *r,*r,*m") | |
1367 | (match_operand:SF 1 "move_operand" " f,G,m,f,G,*r,*f,*G*r,*m,*r"))] | |
1368 | "TARGET_HARD_FLOAT | |
1369 | && (register_operand (operands[0], SFmode) | |
1370 | || reg_or_0_operand (operands[1], SFmode))" | |
1371 | { return riscv_output_move (operands[0], operands[1]); } | |
1372 | [(set_attr "move_type" "fmove,mtc,fpload,fpstore,store,mtc,mfc,move,load,store") | |
1373 | (set_attr "mode" "SF")]) | |
1374 | ||
1375 | (define_insn "*movsf_softfloat" | |
1376 | [(set (match_operand:SF 0 "nonimmediate_operand" "= r,r,m") | |
1377 | (match_operand:SF 1 "move_operand" " Gr,m,r"))] | |
1378 | "!TARGET_HARD_FLOAT | |
1379 | && (register_operand (operands[0], SFmode) | |
1380 | || reg_or_0_operand (operands[1], SFmode))" | |
1381 | { return riscv_output_move (operands[0], operands[1]); } | |
1382 | [(set_attr "move_type" "move,load,store") | |
1383 | (set_attr "mode" "SF")]) | |
1384 | ||
1385 | ;; 64-bit floating point moves | |
1386 | ||
1387 | (define_expand "movdf" | |
1388 | [(set (match_operand:DF 0 "") | |
1389 | (match_operand:DF 1 ""))] | |
1390 | "" | |
1391 | { | |
1392 | if (riscv_legitimize_move (DFmode, operands[0], operands[1])) | |
1393 | DONE; | |
1394 | }) | |
1395 | ||
1396 | ;; In RV32, we lack fmv.x.d and fmv.d.x. Go through memory instead. | |
1397 | ;; (However, we can still use fcvt.d.w to zero a floating-point register.) | |
1398 | (define_insn "*movdf_hardfloat_rv32" | |
1399 | [(set (match_operand:DF 0 "nonimmediate_operand" "=f,f,f,m,m, *r,*r,*m") | |
1400 | (match_operand:DF 1 "move_operand" " f,G,m,f,G,*r*G,*m,*r"))] | |
1401 | "!TARGET_64BIT && TARGET_DOUBLE_FLOAT | |
1402 | && (register_operand (operands[0], DFmode) | |
1403 | || reg_or_0_operand (operands[1], DFmode))" | |
1404 | { return riscv_output_move (operands[0], operands[1]); } | |
1405 | [(set_attr "move_type" "fmove,mtc,fpload,fpstore,store,move,load,store") | |
1406 | (set_attr "mode" "DF")]) | |
1407 | ||
1408 | (define_insn "*movdf_hardfloat_rv64" | |
1409 | [(set (match_operand:DF 0 "nonimmediate_operand" "=f,f,f,m,m,*f,*r, *r,*r,*m") | |
1410 | (match_operand:DF 1 "move_operand" " f,G,m,f,G,*r,*f,*r*G,*m,*r"))] | |
1411 | "TARGET_64BIT && TARGET_DOUBLE_FLOAT | |
1412 | && (register_operand (operands[0], DFmode) | |
1413 | || reg_or_0_operand (operands[1], DFmode))" | |
1414 | { return riscv_output_move (operands[0], operands[1]); } | |
1415 | [(set_attr "move_type" "fmove,mtc,fpload,fpstore,store,mtc,mfc,move,load,store") | |
1416 | (set_attr "mode" "DF")]) | |
1417 | ||
1418 | (define_insn "*movdf_softfloat" | |
1419 | [(set (match_operand:DF 0 "nonimmediate_operand" "= r,r, m") | |
1420 | (match_operand:DF 1 "move_operand" " rG,m,rG"))] | |
1421 | "!TARGET_DOUBLE_FLOAT | |
1422 | && (register_operand (operands[0], DFmode) | |
1423 | || reg_or_0_operand (operands[1], DFmode))" | |
1424 | { return riscv_output_move (operands[0], operands[1]); } | |
1425 | [(set_attr "move_type" "move,load,store") | |
1426 | (set_attr "mode" "DF")]) | |
1427 | ||
1428 | (define_split | |
1429 | [(set (match_operand:MOVE64 0 "nonimmediate_operand") | |
1430 | (match_operand:MOVE64 1 "move_operand"))] | |
1431 | "reload_completed | |
1432 | && riscv_split_64bit_move_p (operands[0], operands[1])" | |
1433 | [(const_int 0)] | |
1434 | { | |
1435 | riscv_split_doubleword_move (operands[0], operands[1]); | |
1436 | DONE; | |
1437 | }) | |
1438 | ||
1439 | (define_expand "movmemsi" | |
1440 | [(parallel [(set (match_operand:BLK 0 "general_operand") | |
1441 | (match_operand:BLK 1 "general_operand")) | |
1442 | (use (match_operand:SI 2 "")) | |
1443 | (use (match_operand:SI 3 "const_int_operand"))])] | |
1444 | "" | |
1445 | { | |
1446 | if (riscv_expand_block_move (operands[0], operands[1], operands[2])) | |
1447 | DONE; | |
1448 | else | |
1449 | FAIL; | |
1450 | }) | |
1451 | ||
1452 | ;; Expand in-line code to clear the instruction cache between operand[0] and | |
1453 | ;; operand[1]. | |
1454 | (define_expand "clear_cache" | |
1455 | [(match_operand 0 "pmode_register_operand") | |
1456 | (match_operand 1 "pmode_register_operand")] | |
1457 | "" | |
1458 | { | |
1459 | #ifdef ICACHE_FLUSH_FUNC | |
1460 | emit_library_call (gen_rtx_SYMBOL_REF (Pmode, ICACHE_FLUSH_FUNC), | |
1461 | LCT_NORMAL, VOIDmode, operands[0], Pmode, | |
1462 | operands[1], Pmode, const0_rtx, Pmode); | |
1463 | #else | |
1464 | emit_insn (gen_fence_i ()); | |
1465 | #endif | |
1466 | DONE; | |
1467 | }) | |
1468 | ||
1469 | (define_insn "fence" | |
1470 | [(unspec_volatile [(const_int 0)] UNSPECV_FENCE)] | |
1471 | "" | |
1472 | "%|fence%-") | |
1473 | ||
1474 | (define_insn "fence_i" | |
1475 | [(unspec_volatile [(const_int 0)] UNSPECV_FENCE_I)] | |
1476 | "" | |
1477 | "fence.i") | |
1478 | ||
1479 | ;; | |
1480 | ;; .................... | |
1481 | ;; | |
1482 | ;; SHIFTS | |
1483 | ;; | |
1484 | ;; .................... | |
1485 | ||
1486 | ;; Use a QImode shift count, to avoid generating sign or zero extend | |
1487 | ;; instructions for shift counts, and to avoid dropping subregs. | |
1488 | ;; expand_shift_1 can do this automatically when SHIFT_COUNT_TRUNCATED is | |
1489 | ;; defined, but use of that is discouraged. | |
1490 | ||
1491 | (define_insn "<optab>si3" | |
1492 | [(set (match_operand:SI 0 "register_operand" "= r") | |
1493 | (any_shift:SI | |
1494 | (match_operand:SI 1 "register_operand" " r") | |
1495 | (match_operand:QI 2 "arith_operand" " rI")))] | |
1496 | "" | |
1497 | { | |
1498 | if (GET_CODE (operands[2]) == CONST_INT) | |
1499 | operands[2] = GEN_INT (INTVAL (operands[2]) | |
1500 | & (GET_MODE_BITSIZE (SImode) - 1)); | |
1501 | ||
1502 | return TARGET_64BIT ? "<insn>%i2w\t%0,%1,%2" : "<insn>%i2\t%0,%1,%2"; | |
1503 | } | |
1504 | [(set_attr "type" "shift") | |
1505 | (set_attr "mode" "SI")]) | |
1506 | ||
1507 | (define_insn_and_split "<optab>si3_mask" | |
1508 | [(set (match_operand:SI 0 "register_operand" "= r") | |
1509 | (any_shift:SI | |
1510 | (match_operand:SI 1 "register_operand" " r") | |
1511 | (subreg:QI | |
1512 | (and:SI | |
1513 | (match_operand:SI 2 "register_operand" "r") | |
1514 | (match_operand 3 "const_int_operand")) 0)))] | |
1515 | "(INTVAL (operands[3]) & (GET_MODE_BITSIZE (SImode)-1)) | |
1516 | == GET_MODE_BITSIZE (SImode)-1" | |
1517 | "#" | |
1518 | "&& 1" | |
1519 | [(set (match_dup 0) | |
1520 | (any_shift:SI (match_dup 1) | |
1521 | (match_dup 2)))] | |
1522 | "operands[2] = gen_lowpart (QImode, operands[2]);" | |
1523 | [(set_attr "type" "shift") | |
1524 | (set_attr "mode" "SI")]) | |
1525 | ||
1526 | (define_insn_and_split "<optab>si3_mask_1" | |
1527 | [(set (match_operand:SI 0 "register_operand" "= r") | |
1528 | (any_shift:SI | |
1529 | (match_operand:SI 1 "register_operand" " r") | |
1530 | (subreg:QI | |
1531 | (and:DI | |
1532 | (match_operand:DI 2 "register_operand" "r") | |
1533 | (match_operand 3 "const_int_operand")) 0)))] | |
1534 | "TARGET_64BIT | |
1535 | && (INTVAL (operands[3]) & (GET_MODE_BITSIZE (SImode)-1)) | |
1536 | == GET_MODE_BITSIZE (SImode)-1" | |
1537 | "#" | |
1538 | "&& 1" | |
1539 | [(set (match_dup 0) | |
1540 | (any_shift:SI (match_dup 1) | |
1541 | (match_dup 2)))] | |
1542 | "operands[2] = gen_lowpart (QImode, operands[2]);" | |
1543 | [(set_attr "type" "shift") | |
1544 | (set_attr "mode" "SI")]) | |
1545 | ||
1546 | (define_insn "<optab>di3" | |
1547 | [(set (match_operand:DI 0 "register_operand" "= r") | |
1548 | (any_shift:DI | |
1549 | (match_operand:DI 1 "register_operand" " r") | |
1550 | (match_operand:QI 2 "arith_operand" " rI")))] | |
1551 | "TARGET_64BIT" | |
1552 | { | |
1553 | if (GET_CODE (operands[2]) == CONST_INT) | |
1554 | operands[2] = GEN_INT (INTVAL (operands[2]) | |
1555 | & (GET_MODE_BITSIZE (DImode) - 1)); | |
1556 | ||
1557 | return "<insn>%i2\t%0,%1,%2"; | |
1558 | } | |
1559 | [(set_attr "type" "shift") | |
1560 | (set_attr "mode" "DI")]) | |
1561 | ||
1562 | (define_insn_and_split "<optab>di3_mask" | |
1563 | [(set (match_operand:DI 0 "register_operand" "= r") | |
1564 | (any_shift:DI | |
1565 | (match_operand:DI 1 "register_operand" " r") | |
1566 | (subreg:QI | |
1567 | (and:SI | |
1568 | (match_operand:SI 2 "register_operand" "r") | |
1569 | (match_operand 3 "const_int_operand")) 0)))] | |
1570 | "TARGET_64BIT | |
1571 | && (INTVAL (operands[3]) & (GET_MODE_BITSIZE (DImode)-1)) | |
1572 | == GET_MODE_BITSIZE (DImode)-1" | |
1573 | "#" | |
1574 | "&& 1" | |
1575 | [(set (match_dup 0) | |
1576 | (any_shift:DI (match_dup 1) | |
1577 | (match_dup 2)))] | |
1578 | "operands[2] = gen_lowpart (QImode, operands[2]);" | |
1579 | [(set_attr "type" "shift") | |
1580 | (set_attr "mode" "DI")]) | |
1581 | ||
1582 | (define_insn_and_split "<optab>di3_mask_1" | |
1583 | [(set (match_operand:DI 0 "register_operand" "= r") | |
1584 | (any_shift:DI | |
1585 | (match_operand:DI 1 "register_operand" " r") | |
1586 | (subreg:QI | |
1587 | (and:DI | |
1588 | (match_operand:DI 2 "register_operand" "r") | |
1589 | (match_operand 3 "const_int_operand")) 0)))] | |
1590 | "TARGET_64BIT | |
1591 | && (INTVAL (operands[3]) & (GET_MODE_BITSIZE (DImode)-1)) | |
1592 | == GET_MODE_BITSIZE (DImode)-1" | |
1593 | "#" | |
1594 | "&& 1" | |
1595 | [(set (match_dup 0) | |
1596 | (any_shift:DI (match_dup 1) | |
1597 | (match_dup 2)))] | |
1598 | "operands[2] = gen_lowpart (QImode, operands[2]);" | |
1599 | [(set_attr "type" "shift") | |
1600 | (set_attr "mode" "DI")]) | |
1601 | ||
1602 | (define_insn "*<optab>si3_extend" | |
1603 | [(set (match_operand:DI 0 "register_operand" "= r") | |
1604 | (sign_extend:DI | |
1605 | (any_shift:SI (match_operand:SI 1 "register_operand" " r") | |
1606 | (match_operand:QI 2 "arith_operand" " rI"))))] | |
1607 | "TARGET_64BIT" | |
1608 | { | |
1609 | if (GET_CODE (operands[2]) == CONST_INT) | |
1610 | operands[2] = GEN_INT (INTVAL (operands[2]) & 0x1f); | |
1611 | ||
1612 | return "<insn>%i2w\t%0,%1,%2"; | |
1613 | } | |
1614 | [(set_attr "type" "shift") | |
1615 | (set_attr "mode" "SI")]) | |
1616 | ||
1617 | (define_insn_and_split "*<optab>si3_extend_mask" | |
1618 | [(set (match_operand:DI 0 "register_operand" "= r") | |
1619 | (sign_extend:DI | |
1620 | (any_shift:SI | |
1621 | (match_operand:SI 1 "register_operand" " r") | |
1622 | (subreg:QI | |
1623 | (and:SI | |
1624 | (match_operand:SI 2 "register_operand" " r") | |
1625 | (match_operand 3 "const_int_operand")) 0))))] | |
1626 | "TARGET_64BIT | |
1627 | && (INTVAL (operands[3]) & (GET_MODE_BITSIZE (SImode)-1)) | |
1628 | == GET_MODE_BITSIZE (SImode)-1" | |
1629 | "#" | |
1630 | "&& 1" | |
1631 | [(set (match_dup 0) | |
1632 | (sign_extend:DI | |
1633 | (any_shift:SI (match_dup 1) | |
1634 | (match_dup 2))))] | |
1635 | "operands[2] = gen_lowpart (QImode, operands[2]);" | |
1636 | [(set_attr "type" "shift") | |
1637 | (set_attr "mode" "SI")]) | |
1638 | ||
1639 | (define_insn_and_split "*<optab>si3_extend_mask_1" | |
1640 | [(set (match_operand:DI 0 "register_operand" "= r") | |
1641 | (sign_extend:DI | |
1642 | (any_shift:SI | |
1643 | (match_operand:SI 1 "register_operand" " r") | |
1644 | (subreg:QI | |
1645 | (and:DI | |
1646 | (match_operand:DI 2 "register_operand" " r") | |
1647 | (match_operand 3 "const_int_operand")) 0))))] | |
1648 | "TARGET_64BIT | |
1649 | && (INTVAL (operands[3]) & (GET_MODE_BITSIZE (SImode)-1)) | |
1650 | == GET_MODE_BITSIZE (SImode)-1" | |
1651 | "#" | |
1652 | "&& 1" | |
1653 | [(set (match_dup 0) | |
1654 | (sign_extend:DI | |
1655 | (any_shift:SI (match_dup 1) | |
1656 | (match_dup 2))))] | |
1657 | "operands[2] = gen_lowpart (QImode, operands[2]);" | |
1658 | [(set_attr "type" "shift") | |
1659 | (set_attr "mode" "SI")]) | |
1660 | ||
1661 | ;; Non-canonical, but can be formed by ree when combine is not successful at | |
1662 | ;; producing one of the two canonical patterns below. | |
1663 | (define_insn "*lshrsi3_zero_extend_1" | |
1664 | [(set (match_operand:DI 0 "register_operand" "=r") | |
1665 | (zero_extend:DI | |
1666 | (lshiftrt:SI (match_operand:SI 1 "register_operand" " r") | |
1667 | (match_operand 2 "const_int_operand"))))] | |
1668 | "TARGET_64BIT && (INTVAL (operands[2]) & 0x1f) > 0" | |
1669 | { | |
1670 | operands[2] = GEN_INT (INTVAL (operands[2]) & 0x1f); | |
1671 | ||
1672 | return "srliw\t%0,%1,%2"; | |
1673 | } | |
1674 | [(set_attr "type" "shift") | |
1675 | (set_attr "mode" "SI")]) | |
1676 | ||
1677 | ;; Canonical form for a zero-extend of a logical right shift. | |
1678 | (define_insn "*lshrsi3_zero_extend_2" | |
1679 | [(set (match_operand:DI 0 "register_operand" "=r") | |
1680 | (zero_extract:DI (match_operand:DI 1 "register_operand" " r") | |
1681 | (match_operand 2 "const_int_operand") | |
1682 | (match_operand 3 "const_int_operand")))] | |
1683 | "(TARGET_64BIT && (INTVAL (operands[3]) > 0) | |
1684 | && (INTVAL (operands[2]) + INTVAL (operands[3]) == 32))" | |
1685 | { | |
1686 | return "srliw\t%0,%1,%3"; | |
1687 | } | |
1688 | [(set_attr "type" "shift") | |
1689 | (set_attr "mode" "SI")]) | |
1690 | ||
1691 | ;; Canonical form for a zero-extend of a logical right shift when the | |
1692 | ;; shift count is 31. | |
1693 | (define_insn "*lshrsi3_zero_extend_3" | |
1694 | [(set (match_operand:DI 0 "register_operand" "=r") | |
1695 | (lt:DI (match_operand:SI 1 "register_operand" " r") | |
1696 | (const_int 0)))] | |
1697 | "TARGET_64BIT" | |
1698 | { | |
1699 | return "srliw\t%0,%1,31"; | |
1700 | } | |
1701 | [(set_attr "type" "shift") | |
1702 | (set_attr "mode" "SI")]) | |
1703 | ||
1704 | ;; | |
1705 | ;; .................... | |
1706 | ;; | |
1707 | ;; CONDITIONAL BRANCHES | |
1708 | ;; | |
1709 | ;; .................... | |
1710 | ||
1711 | ;; Conditional branches | |
1712 | ||
1713 | (define_insn "*branch_order<mode>" | |
1714 | [(set (pc) | |
1715 | (if_then_else | |
1716 | (match_operator 1 "order_operator" | |
1717 | [(match_operand:X 2 "register_operand" "r") | |
1718 | (match_operand:X 3 "register_operand" "r")]) | |
1719 | (label_ref (match_operand 0 "" "")) | |
1720 | (pc)))] | |
1721 | "" | |
1722 | "b%C1\t%2,%3,%0" | |
1723 | [(set_attr "type" "branch") | |
1724 | (set_attr "mode" "none")]) | |
1725 | ||
1726 | (define_insn "*branch_zero<mode>" | |
1727 | [(set (pc) | |
1728 | (if_then_else | |
1729 | (match_operator 1 "signed_order_operator" | |
1730 | [(match_operand:X 2 "register_operand" "r") | |
1731 | (const_int 0)]) | |
1732 | (label_ref (match_operand 0 "" "")) | |
1733 | (pc)))] | |
1734 | "" | |
1735 | "b%C1z\t%2,%0" | |
1736 | [(set_attr "type" "branch") | |
1737 | (set_attr "mode" "none")]) | |
1738 | ||
1739 | ;; Used to implement built-in functions. | |
1740 | (define_expand "condjump" | |
1741 | [(set (pc) | |
1742 | (if_then_else (match_operand 0) | |
1743 | (label_ref (match_operand 1)) | |
1744 | (pc)))]) | |
1745 | ||
1746 | (define_expand "cbranch<mode>4" | |
1747 | [(set (pc) | |
1748 | (if_then_else (match_operator 0 "comparison_operator" | |
1749 | [(match_operand:BR 1 "register_operand") | |
1750 | (match_operand:BR 2 "nonmemory_operand")]) | |
1751 | (label_ref (match_operand 3 "")) | |
1752 | (pc)))] | |
1753 | "" | |
1754 | { | |
1755 | riscv_expand_conditional_branch (operands[3], GET_CODE (operands[0]), | |
1756 | operands[1], operands[2]); | |
1757 | DONE; | |
1758 | }) | |
1759 | ||
1760 | (define_expand "cbranch<mode>4" | |
1761 | [(set (pc) | |
1762 | (if_then_else (match_operator 0 "fp_branch_comparison" | |
1763 | [(match_operand:ANYF 1 "register_operand") | |
1764 | (match_operand:ANYF 2 "register_operand")]) | |
1765 | (label_ref (match_operand 3 "")) | |
1766 | (pc)))] | |
1767 | "TARGET_HARD_FLOAT" | |
1768 | { | |
1769 | riscv_expand_conditional_branch (operands[3], GET_CODE (operands[0]), | |
1770 | operands[1], operands[2]); | |
1771 | DONE; | |
1772 | }) | |
1773 | ||
1774 | (define_insn_and_split "*branch_on_bit<X:mode>" | |
1775 | [(set (pc) | |
1776 | (if_then_else | |
1777 | (match_operator 0 "equality_operator" | |
1778 | [(zero_extract:X (match_operand:X 2 "register_operand" "r") | |
1779 | (const_int 1) | |
1780 | (match_operand 3 "branch_on_bit_operand")) | |
1781 | (const_int 0)]) | |
1782 | (label_ref (match_operand 1)) | |
1783 | (pc))) | |
1784 | (clobber (match_scratch:X 4 "=&r"))] | |
1785 | "" | |
1786 | "#" | |
1787 | "reload_completed" | |
1788 | [(set (match_dup 4) | |
1789 | (ashift:X (match_dup 2) (match_dup 3))) | |
1790 | (set (pc) | |
1791 | (if_then_else | |
1792 | (match_op_dup 0 [(match_dup 4) (const_int 0)]) | |
1793 | (label_ref (match_operand 1)) | |
1794 | (pc)))] | |
1795 | { | |
1796 | int shift = GET_MODE_BITSIZE (<MODE>mode) - 1 - INTVAL (operands[3]); | |
1797 | operands[3] = GEN_INT (shift); | |
1798 | ||
1799 | if (GET_CODE (operands[0]) == EQ) | |
1800 | operands[0] = gen_rtx_GE (<MODE>mode, operands[4], const0_rtx); | |
1801 | else | |
1802 | operands[0] = gen_rtx_LT (<MODE>mode, operands[4], const0_rtx); | |
1803 | }) | |
1804 | ||
1805 | (define_insn_and_split "*branch_on_bit_range<X:mode>" | |
1806 | [(set (pc) | |
1807 | (if_then_else | |
1808 | (match_operator 0 "equality_operator" | |
1809 | [(zero_extract:X (match_operand:X 2 "register_operand" "r") | |
1810 | (match_operand 3 "branch_on_bit_operand") | |
1811 | (const_int 0)) | |
1812 | (const_int 0)]) | |
1813 | (label_ref (match_operand 1)) | |
1814 | (pc))) | |
1815 | (clobber (match_scratch:X 4 "=&r"))] | |
1816 | "" | |
1817 | "#" | |
1818 | "reload_completed" | |
1819 | [(set (match_dup 4) | |
1820 | (ashift:X (match_dup 2) (match_dup 3))) | |
1821 | (set (pc) | |
1822 | (if_then_else | |
1823 | (match_op_dup 0 [(match_dup 4) (const_int 0)]) | |
1824 | (label_ref (match_operand 1)) | |
1825 | (pc)))] | |
1826 | { | |
1827 | operands[3] = GEN_INT (GET_MODE_BITSIZE (<MODE>mode) - INTVAL (operands[3])); | |
1828 | }) | |
1829 | ||
1830 | ;; | |
1831 | ;; .................... | |
1832 | ;; | |
1833 | ;; SETTING A REGISTER FROM A COMPARISON | |
1834 | ;; | |
1835 | ;; .................... | |
1836 | ||
1837 | ;; Destination is always set in SI mode. | |
1838 | ||
1839 | (define_expand "cstore<mode>4" | |
1840 | [(set (match_operand:SI 0 "register_operand") | |
1841 | (match_operator:SI 1 "order_operator" | |
1842 | [(match_operand:GPR 2 "register_operand") | |
1843 | (match_operand:GPR 3 "nonmemory_operand")]))] | |
1844 | "" | |
1845 | { | |
1846 | riscv_expand_int_scc (operands[0], GET_CODE (operands[1]), operands[2], | |
1847 | operands[3]); | |
1848 | DONE; | |
1849 | }) | |
1850 | ||
1851 | (define_expand "cstore<mode>4" | |
1852 | [(set (match_operand:SI 0 "register_operand") | |
1853 | (match_operator:SI 1 "fp_scc_comparison" | |
1854 | [(match_operand:ANYF 2 "register_operand") | |
1855 | (match_operand:ANYF 3 "register_operand")]))] | |
1856 | "TARGET_HARD_FLOAT" | |
1857 | { | |
1858 | riscv_expand_float_scc (operands[0], GET_CODE (operands[1]), operands[2], | |
1859 | operands[3]); | |
1860 | DONE; | |
1861 | }) | |
1862 | ||
1863 | (define_insn "*cstore<ANYF:mode><X:mode>4" | |
1864 | [(set (match_operand:X 0 "register_operand" "=r") | |
1865 | (match_operator:X 1 "fp_native_comparison" | |
1866 | [(match_operand:ANYF 2 "register_operand" " f") | |
1867 | (match_operand:ANYF 3 "register_operand" " f")]))] | |
1868 | "TARGET_HARD_FLOAT" | |
1869 | "f%C1.<fmt>\t%0,%2,%3" | |
1870 | [(set_attr "type" "fcmp") | |
1871 | (set_attr "mode" "<UNITMODE>")]) | |
1872 | ||
1873 | (define_insn "f<quiet_pattern>_quiet<ANYF:mode><X:mode>4" | |
1874 | [(set (match_operand:X 0 "register_operand" "=r") | |
1875 | (unspec:X | |
1876 | [(match_operand:ANYF 1 "register_operand" " f") | |
1877 | (match_operand:ANYF 2 "register_operand" " f")] | |
1878 | QUIET_COMPARISON)) | |
1879 | (clobber (match_scratch:X 3 "=&r"))] | |
1880 | "TARGET_HARD_FLOAT" | |
1881 | "frflags\t%3\n\tf<quiet_pattern>.<fmt>\t%0,%1,%2\n\tfsflags %3" | |
1882 | [(set_attr "type" "fcmp") | |
1883 | (set_attr "mode" "<UNITMODE>") | |
1884 | (set (attr "length") (const_int 12))]) | |
1885 | ||
1886 | (define_insn "*seq_zero_<X:mode><GPR:mode>" | |
1887 | [(set (match_operand:GPR 0 "register_operand" "=r") | |
1888 | (eq:GPR (match_operand:X 1 "register_operand" " r") | |
1889 | (const_int 0)))] | |
1890 | "" | |
1891 | "seqz\t%0,%1" | |
1892 | [(set_attr "type" "slt") | |
1893 | (set_attr "mode" "<X:MODE>")]) | |
1894 | ||
1895 | (define_insn "*sne_zero_<X:mode><GPR:mode>" | |
1896 | [(set (match_operand:GPR 0 "register_operand" "=r") | |
1897 | (ne:GPR (match_operand:X 1 "register_operand" " r") | |
1898 | (const_int 0)))] | |
1899 | "" | |
1900 | "snez\t%0,%1" | |
1901 | [(set_attr "type" "slt") | |
1902 | (set_attr "mode" "<X:MODE>")]) | |
1903 | ||
1904 | (define_insn "*sgt<u>_<X:mode><GPR:mode>" | |
1905 | [(set (match_operand:GPR 0 "register_operand" "= r") | |
1906 | (any_gt:GPR (match_operand:X 1 "register_operand" " r") | |
1907 | (match_operand:X 2 "reg_or_0_operand" " rJ")))] | |
1908 | "" | |
1909 | "sgt<u>\t%0,%1,%z2" | |
1910 | [(set_attr "type" "slt") | |
1911 | (set_attr "mode" "<X:MODE>")]) | |
1912 | ||
1913 | (define_insn "*sge<u>_<X:mode><GPR:mode>" | |
1914 | [(set (match_operand:GPR 0 "register_operand" "=r") | |
1915 | (any_ge:GPR (match_operand:X 1 "register_operand" " r") | |
1916 | (const_int 1)))] | |
1917 | "" | |
1918 | "slt%i2<u>\t%0,zero,%1" | |
1919 | [(set_attr "type" "slt") | |
1920 | (set_attr "mode" "<MODE>")]) | |
1921 | ||
1922 | (define_insn "*slt<u>_<X:mode><GPR:mode>" | |
1923 | [(set (match_operand:GPR 0 "register_operand" "= r") | |
1924 | (any_lt:GPR (match_operand:X 1 "register_operand" " r") | |
1925 | (match_operand:X 2 "arith_operand" " rI")))] | |
1926 | "" | |
1927 | "slt%i2<u>\t%0,%1,%2" | |
1928 | [(set_attr "type" "slt") | |
1929 | (set_attr "mode" "<MODE>")]) | |
1930 | ||
1931 | (define_insn "*sle<u>_<X:mode><GPR:mode>" | |
1932 | [(set (match_operand:GPR 0 "register_operand" "=r") | |
1933 | (any_le:GPR (match_operand:X 1 "register_operand" " r") | |
1934 | (match_operand:X 2 "sle_operand" "")))] | |
1935 | "" | |
1936 | { | |
1937 | operands[2] = GEN_INT (INTVAL (operands[2]) + 1); | |
1938 | return "slt%i2<u>\t%0,%1,%2"; | |
1939 | } | |
1940 | [(set_attr "type" "slt") | |
1941 | (set_attr "mode" "<MODE>")]) | |
1942 | ||
1943 | ;; | |
1944 | ;; .................... | |
1945 | ;; | |
1946 | ;; UNCONDITIONAL BRANCHES | |
1947 | ;; | |
1948 | ;; .................... | |
1949 | ||
1950 | ;; Unconditional branches. | |
1951 | ||
1952 | (define_insn "jump" | |
1953 | [(set (pc) | |
1954 | (label_ref (match_operand 0 "" "")))] | |
1955 | "" | |
1956 | "j\t%l0" | |
1957 | [(set_attr "type" "jump") | |
1958 | (set_attr "mode" "none")]) | |
1959 | ||
1960 | (define_expand "indirect_jump" | |
1961 | [(set (pc) (match_operand 0 "register_operand"))] | |
1962 | "" | |
1963 | { | |
1964 | operands[0] = force_reg (Pmode, operands[0]); | |
1965 | if (Pmode == SImode) | |
1966 | emit_jump_insn (gen_indirect_jumpsi (operands[0])); | |
1967 | else | |
1968 | emit_jump_insn (gen_indirect_jumpdi (operands[0])); | |
1969 | DONE; | |
1970 | }) | |
1971 | ||
1972 | (define_insn "indirect_jump<mode>" | |
1973 | [(set (pc) (match_operand:P 0 "register_operand" "l"))] | |
1974 | "" | |
1975 | "jr\t%0" | |
1976 | [(set_attr "type" "jump") | |
1977 | (set_attr "mode" "none")]) | |
1978 | ||
1979 | (define_expand "tablejump" | |
1980 | [(set (pc) (match_operand 0 "register_operand" "")) | |
1981 | (use (label_ref (match_operand 1 "" "")))] | |
1982 | "" | |
1983 | { | |
1984 | if (CASE_VECTOR_PC_RELATIVE) | |
1985 | operands[0] = expand_simple_binop (Pmode, PLUS, operands[0], | |
1986 | gen_rtx_LABEL_REF (Pmode, operands[1]), | |
1987 | NULL_RTX, 0, OPTAB_DIRECT); | |
1988 | ||
1989 | if (CASE_VECTOR_PC_RELATIVE && Pmode == DImode) | |
1990 | emit_jump_insn (gen_tablejumpdi (operands[0], operands[1])); | |
1991 | else | |
1992 | emit_jump_insn (gen_tablejumpsi (operands[0], operands[1])); | |
1993 | DONE; | |
1994 | }) | |
1995 | ||
1996 | (define_insn "tablejump<mode>" | |
1997 | [(set (pc) (match_operand:GPR 0 "register_operand" "l")) | |
1998 | (use (label_ref (match_operand 1 "" "")))] | |
1999 | "" | |
2000 | "jr\t%0" | |
2001 | [(set_attr "type" "jump") | |
2002 | (set_attr "mode" "none")]) | |
2003 | ||
2004 | ;; | |
2005 | ;; .................... | |
2006 | ;; | |
2007 | ;; Function prologue/epilogue | |
2008 | ;; | |
2009 | ;; .................... | |
2010 | ;; | |
2011 | ||
2012 | (define_expand "prologue" | |
2013 | [(const_int 1)] | |
2014 | "" | |
2015 | { | |
2016 | riscv_expand_prologue (); | |
2017 | DONE; | |
2018 | }) | |
2019 | ||
2020 | ;; Block any insns from being moved before this point, since the | |
2021 | ;; profiling call to mcount can use various registers that aren't | |
2022 | ;; saved or used to pass arguments. | |
2023 | ||
2024 | (define_insn "blockage" | |
2025 | [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)] | |
2026 | "" | |
2027 | "" | |
2028 | [(set_attr "type" "ghost") | |
2029 | (set_attr "mode" "none")]) | |
2030 | ||
2031 | (define_expand "epilogue" | |
2032 | [(const_int 2)] | |
2033 | "" | |
2034 | { | |
2035 | riscv_expand_epilogue (false); | |
2036 | DONE; | |
2037 | }) | |
2038 | ||
2039 | (define_expand "sibcall_epilogue" | |
2040 | [(const_int 2)] | |
2041 | "" | |
2042 | { | |
2043 | riscv_expand_epilogue (true); | |
2044 | DONE; | |
2045 | }) | |
2046 | ||
2047 | ;; Trivial return. Make it look like a normal return insn as that | |
2048 | ;; allows jump optimizations to work better. | |
2049 | ||
2050 | (define_expand "return" | |
2051 | [(simple_return)] | |
2052 | "riscv_can_use_return_insn ()" | |
2053 | "") | |
2054 | ||
2055 | (define_insn "simple_return" | |
2056 | [(simple_return)] | |
2057 | "" | |
2058 | { | |
2059 | return riscv_output_return (); | |
2060 | } | |
2061 | [(set_attr "type" "jump") | |
2062 | (set_attr "mode" "none")]) | |
2063 | ||
2064 | ;; Normal return. | |
2065 | ||
2066 | (define_insn "simple_return_internal" | |
2067 | [(simple_return) | |
2068 | (use (match_operand 0 "pmode_register_operand" ""))] | |
2069 | "" | |
2070 | "jr\t%0" | |
2071 | [(set_attr "type" "jump") | |
2072 | (set_attr "mode" "none")]) | |
2073 | ||
2074 | ;; This is used in compiling the unwind routines. | |
2075 | (define_expand "eh_return" | |
2076 | [(use (match_operand 0 "general_operand"))] | |
2077 | "" | |
2078 | { | |
2079 | if (GET_MODE (operands[0]) != word_mode) | |
2080 | operands[0] = convert_to_mode (word_mode, operands[0], 0); | |
2081 | if (TARGET_64BIT) | |
2082 | emit_insn (gen_eh_set_lr_di (operands[0])); | |
2083 | else | |
2084 | emit_insn (gen_eh_set_lr_si (operands[0])); | |
2085 | DONE; | |
2086 | }) | |
2087 | ||
2088 | ;; Clobber the return address on the stack. We can't expand this | |
2089 | ;; until we know where it will be put in the stack frame. | |
2090 | ||
2091 | (define_insn "eh_set_lr_si" | |
2092 | [(unspec [(match_operand:SI 0 "register_operand" "r")] UNSPEC_EH_RETURN) | |
2093 | (clobber (match_scratch:SI 1 "=&r"))] | |
2094 | "! TARGET_64BIT" | |
2095 | "#") | |
2096 | ||
2097 | (define_insn "eh_set_lr_di" | |
2098 | [(unspec [(match_operand:DI 0 "register_operand" "r")] UNSPEC_EH_RETURN) | |
2099 | (clobber (match_scratch:DI 1 "=&r"))] | |
2100 | "TARGET_64BIT" | |
2101 | "#") | |
2102 | ||
2103 | (define_split | |
2104 | [(unspec [(match_operand 0 "register_operand")] UNSPEC_EH_RETURN) | |
2105 | (clobber (match_scratch 1))] | |
2106 | "reload_completed" | |
2107 | [(const_int 0)] | |
2108 | { | |
2109 | riscv_set_return_address (operands[0], operands[1]); | |
2110 | DONE; | |
2111 | }) | |
2112 | ||
2113 | ;; | |
2114 | ;; .................... | |
2115 | ;; | |
2116 | ;; FUNCTION CALLS | |
2117 | ;; | |
2118 | ;; .................... | |
2119 | ||
2120 | (define_expand "sibcall" | |
2121 | [(parallel [(call (match_operand 0 "") | |
2122 | (match_operand 1 "")) | |
2123 | (use (match_operand 2 "")) ;; next_arg_reg | |
2124 | (use (match_operand 3 ""))])] ;; struct_value_size_rtx | |
2125 | "" | |
2126 | { | |
2127 | rtx target = riscv_legitimize_call_address (XEXP (operands[0], 0)); | |
2128 | emit_call_insn (gen_sibcall_internal (target, operands[1])); | |
2129 | DONE; | |
2130 | }) | |
2131 | ||
2132 | (define_insn "sibcall_internal" | |
2133 | [(call (mem:SI (match_operand 0 "call_insn_operand" "j,S,U")) | |
2134 | (match_operand 1 "" ""))] | |
2135 | "SIBLING_CALL_P (insn)" | |
2136 | "@ | |
2137 | jr\t%0 | |
2138 | tail\t%0 | |
2139 | tail\t%0@plt" | |
2140 | [(set_attr "type" "call")]) | |
2141 | ||
2142 | (define_expand "sibcall_value" | |
2143 | [(parallel [(set (match_operand 0 "") | |
2144 | (call (match_operand 1 "") | |
2145 | (match_operand 2 ""))) | |
2146 | (use (match_operand 3 ""))])] ;; next_arg_reg | |
2147 | "" | |
2148 | { | |
2149 | rtx target = riscv_legitimize_call_address (XEXP (operands[1], 0)); | |
2150 | emit_call_insn (gen_sibcall_value_internal (operands[0], target, operands[2])); | |
2151 | DONE; | |
2152 | }) | |
2153 | ||
2154 | (define_insn "sibcall_value_internal" | |
2155 | [(set (match_operand 0 "" "") | |
2156 | (call (mem:SI (match_operand 1 "call_insn_operand" "j,S,U")) | |
2157 | (match_operand 2 "" "")))] | |
2158 | "SIBLING_CALL_P (insn)" | |
2159 | "@ | |
2160 | jr\t%1 | |
2161 | tail\t%1 | |
2162 | tail\t%1@plt" | |
2163 | [(set_attr "type" "call")]) | |
2164 | ||
2165 | (define_expand "call" | |
2166 | [(parallel [(call (match_operand 0 "") | |
2167 | (match_operand 1 "")) | |
2168 | (use (match_operand 2 "")) ;; next_arg_reg | |
2169 | (use (match_operand 3 ""))])] ;; struct_value_size_rtx | |
2170 | "" | |
2171 | { | |
2172 | rtx target = riscv_legitimize_call_address (XEXP (operands[0], 0)); | |
2173 | emit_call_insn (gen_call_internal (target, operands[1])); | |
2174 | DONE; | |
2175 | }) | |
2176 | ||
2177 | (define_insn "call_internal" | |
2178 | [(call (mem:SI (match_operand 0 "call_insn_operand" "l,S,U")) | |
2179 | (match_operand 1 "" "")) | |
2180 | (clobber (reg:SI RETURN_ADDR_REGNUM))] | |
2181 | "" | |
2182 | "@ | |
2183 | jalr\t%0 | |
2184 | call\t%0 | |
2185 | call\t%0@plt" | |
2186 | [(set_attr "type" "call")]) | |
2187 | ||
2188 | (define_expand "call_value" | |
2189 | [(parallel [(set (match_operand 0 "") | |
2190 | (call (match_operand 1 "") | |
2191 | (match_operand 2 ""))) | |
2192 | (use (match_operand 3 ""))])] ;; next_arg_reg | |
2193 | "" | |
2194 | { | |
2195 | rtx target = riscv_legitimize_call_address (XEXP (operands[1], 0)); | |
2196 | emit_call_insn (gen_call_value_internal (operands[0], target, operands[2])); | |
2197 | DONE; | |
2198 | }) | |
2199 | ||
2200 | (define_insn "call_value_internal" | |
2201 | [(set (match_operand 0 "" "") | |
2202 | (call (mem:SI (match_operand 1 "call_insn_operand" "l,S,U")) | |
2203 | (match_operand 2 "" ""))) | |
2204 | (clobber (reg:SI RETURN_ADDR_REGNUM))] | |
2205 | "" | |
2206 | "@ | |
2207 | jalr\t%1 | |
2208 | call\t%1 | |
2209 | call\t%1@plt" | |
2210 | [(set_attr "type" "call")]) | |
2211 | ||
2212 | ;; Call subroutine returning any type. | |
2213 | ||
2214 | (define_expand "untyped_call" | |
2215 | [(parallel [(call (match_operand 0 "") | |
2216 | (const_int 0)) | |
2217 | (match_operand 1 "") | |
2218 | (match_operand 2 "")])] | |
2219 | "" | |
2220 | { | |
2221 | int i; | |
2222 | ||
2223 | emit_call_insn (gen_call (operands[0], const0_rtx, NULL, const0_rtx)); | |
2224 | ||
2225 | for (i = 0; i < XVECLEN (operands[2], 0); i++) | |
2226 | { | |
2227 | rtx set = XVECEXP (operands[2], 0, i); | |
2228 | riscv_emit_move (SET_DEST (set), SET_SRC (set)); | |
2229 | } | |
2230 | ||
2231 | emit_insn (gen_blockage ()); | |
2232 | DONE; | |
2233 | }) | |
2234 | ||
2235 | (define_insn "nop" | |
2236 | [(const_int 0)] | |
2237 | "" | |
2238 | "nop" | |
2239 | [(set_attr "type" "nop") | |
2240 | (set_attr "mode" "none")]) | |
2241 | ||
2242 | (define_insn "trap" | |
2243 | [(trap_if (const_int 1) (const_int 0))] | |
2244 | "" | |
2245 | "ebreak") | |
2246 | ||
2247 | (define_insn "gpr_save" | |
2248 | [(unspec_volatile [(match_operand 0 "const_int_operand")] UNSPECV_GPR_SAVE) | |
2249 | (clobber (reg:SI T0_REGNUM)) | |
2250 | (clobber (reg:SI T1_REGNUM))] | |
2251 | "" | |
2252 | { return riscv_output_gpr_save (INTVAL (operands[0])); }) | |
2253 | ||
2254 | (define_insn "gpr_restore" | |
2255 | [(unspec_volatile [(match_operand 0 "const_int_operand")] UNSPECV_GPR_RESTORE)] | |
2256 | "" | |
2257 | "tail\t__riscv_restore_%0") | |
2258 | ||
2259 | (define_insn "gpr_restore_return" | |
2260 | [(return) | |
2261 | (use (match_operand 0 "pmode_register_operand" "")) | |
2262 | (const_int 0)] | |
2263 | "" | |
2264 | "") | |
2265 | ||
2266 | (define_insn "riscv_frflags" | |
2267 | [(set (match_operand:SI 0 "register_operand" "=r") | |
2268 | (unspec_volatile [(const_int 0)] UNSPECV_FRFLAGS))] | |
2269 | "TARGET_HARD_FLOAT" | |
2270 | "frflags %0") | |
2271 | ||
2272 | (define_insn "riscv_fsflags" | |
2273 | [(unspec_volatile [(match_operand:SI 0 "csr_operand" "rK")] UNSPECV_FSFLAGS)] | |
2274 | "TARGET_HARD_FLOAT" | |
2275 | "fsflags %0") | |
2276 | ||
2277 | (define_insn "stack_tie<mode>" | |
2278 | [(set (mem:BLK (scratch)) | |
2279 | (unspec:BLK [(match_operand:X 0 "register_operand" "r") | |
2280 | (match_operand:X 1 "register_operand" "r")] | |
2281 | UNSPEC_TIE))] | |
2282 | "" | |
2283 | "" | |
2284 | [(set_attr "length" "0")] | |
2285 | ) | |
2286 | ||
2287 | (include "sync.md") | |
2288 | (include "peephole.md") | |
2289 | (include "pic.md") | |
2290 | (include "generic.md") |