1 ;; Load/Store Multiple patterns description of Andes NDS32 cpu for GNU compiler
2 ;; Copyright (C) 2012-2018 Free Software Foundation, Inc.
3 ;; Contributed by Andes Technology Corporation.for NDS32.
5 ;; This file is part of GCC.
7 ;; GCC is free software; you can redistribute it and/or modify it
8 ;; under the terms of the GNU General Public License as published
9 ;; by the Free Software Foundation; either version 3, or (at your
10 ;; option) any later version.
12 ;; GCC is distributed in the hope that it will be useful, but WITHOUT
13 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 ;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 ;; License for more details.
17 ;; You should have received a copy of the GNU General Public License
18 ;; along with GCC; see the file COPYING3. If not see
19 ;; <http://www.gnu.org/licenses/>.
22 ;; Load Multiple Insns.
24 ;; operands[0] is the first of the consecutive registers.
25 ;; operands[1] is the first memory location.
26 ;; operands[2] is the number of consecutive registers.
28 (define_expand "load_multiple"
29 [(match_par_dup 3 [(set (match_operand:SI 0 "" "")
30 (match_operand:SI 1 "" ""))
31 (use (match_operand:SI 2 "" ""))])]
36 /* Because reduced-set regsiters has few registers
37 (r0~r5, r6~10, r15, r28~r31, where 'r15' and 'r28~r31' cannot
38 be used for register allocation),
39 using 8 registers for load_multiple may easily consume all of them.
40 It makes register allocation/spilling hard to work.
41 So we only allow maximum=4 registers for load_multiple
42 under reduced-set registers. */
43 if (TARGET_REDUCED_REGS)
48 /* Here are the conditions that must be all passed,
49 otherwise we have to FAIL this rtx generation:
50 1. The number of consecutive registers must be integer.
51 2. Maximum 4 or 8 registers for lmw.bi instruction
52 (based on this nds32-multiple.md design).
53 3. Minimum 2 registers for lmw.bi instruction
54 (based on this nds32-multiple.md design).
55 4. operands[0] must be register for sure.
56 5. operands[1] must be memory for sure.
57 6. Do not cross $r15 register because it is not allocatable. */
58 if (GET_CODE (operands[2]) != CONST_INT
59 || INTVAL (operands[2]) > maximum
60 || INTVAL (operands[2]) < 2
61 || GET_CODE (operands[0]) != REG
62 || GET_CODE (operands[1]) != MEM
63 || REGNO (operands[0]) + INTVAL (operands[2]) > TA_REGNUM)
66 /* For (mem addr), we force_reg on addr here,
67 so that nds32_expand_load_multiple can easily use it. */
68 operands[3] = nds32_expand_load_multiple (REGNO (operands[0]),
71 XEXP (operands[1], 0)),
75 ;; Ordinary Load Multiple.
77 (define_insn "*lmwsi8"
78 [(match_parallel 0 "nds32_load_multiple_operation"
79 [(set (match_operand:SI 2 "register_operand" "")
80 (mem:SI (match_operand:SI 1 "register_operand" "r")))
81 (set (match_operand:SI 3 "register_operand" "")
82 (mem:SI (plus:SI (match_dup 1) (const_int 4))))
83 (set (match_operand:SI 4 "register_operand" "")
84 (mem:SI (plus:SI (match_dup 1) (const_int 8))))
85 (set (match_operand:SI 5 "register_operand" "")
86 (mem:SI (plus:SI (match_dup 1) (const_int 12))))
87 (set (match_operand:SI 6 "register_operand" "")
88 (mem:SI (plus:SI (match_dup 1) (const_int 16))))
89 (set (match_operand:SI 7 "register_operand" "")
90 (mem:SI (plus:SI (match_dup 1) (const_int 20))))
91 (set (match_operand:SI 8 "register_operand" "")
92 (mem:SI (plus:SI (match_dup 1) (const_int 24))))
93 (set (match_operand:SI 9 "register_operand" "")
94 (mem:SI (plus:SI (match_dup 1) (const_int 28))))])]
95 "(XVECLEN (operands[0], 0) == 8)"
96 "lmw.bi\t%2, [%1], %9, 0x0"
97 [(set_attr "type" "load")
98 (set_attr "length" "4")]
101 (define_insn "*lmwsi7"
102 [(match_parallel 0 "nds32_load_multiple_operation"
103 [(set (match_operand:SI 2 "register_operand" "")
104 (mem:SI (match_operand:SI 1 "register_operand" "r")))
105 (set (match_operand:SI 3 "register_operand" "")
106 (mem:SI (plus:SI (match_dup 1) (const_int 4))))
107 (set (match_operand:SI 4 "register_operand" "")
108 (mem:SI (plus:SI (match_dup 1) (const_int 8))))
109 (set (match_operand:SI 5 "register_operand" "")
110 (mem:SI (plus:SI (match_dup 1) (const_int 12))))
111 (set (match_operand:SI 6 "register_operand" "")
112 (mem:SI (plus:SI (match_dup 1) (const_int 16))))
113 (set (match_operand:SI 7 "register_operand" "")
114 (mem:SI (plus:SI (match_dup 1) (const_int 20))))
115 (set (match_operand:SI 8 "register_operand" "")
116 (mem:SI (plus:SI (match_dup 1) (const_int 24))))])]
117 "(XVECLEN (operands[0], 0) == 7)"
118 "lmw.bi\t%2, [%1], %8, 0x0"
119 [(set_attr "type" "load")
120 (set_attr "length" "4")]
123 (define_insn "*lmwsi6"
124 [(match_parallel 0 "nds32_load_multiple_operation"
125 [(set (match_operand:SI 2 "register_operand" "")
126 (mem:SI (match_operand:SI 1 "register_operand" "r")))
127 (set (match_operand:SI 3 "register_operand" "")
128 (mem:SI (plus:SI (match_dup 1) (const_int 4))))
129 (set (match_operand:SI 4 "register_operand" "")
130 (mem:SI (plus:SI (match_dup 1) (const_int 8))))
131 (set (match_operand:SI 5 "register_operand" "")
132 (mem:SI (plus:SI (match_dup 1) (const_int 12))))
133 (set (match_operand:SI 6 "register_operand" "")
134 (mem:SI (plus:SI (match_dup 1) (const_int 16))))
135 (set (match_operand:SI 7 "register_operand" "")
136 (mem:SI (plus:SI (match_dup 1) (const_int 20))))])]
137 "(XVECLEN (operands[0], 0) == 6)"
138 "lmw.bi\t%2, [%1], %7, 0x0"
139 [(set_attr "type" "load")
140 (set_attr "length" "4")]
143 (define_insn "*lmwsi5"
144 [(match_parallel 0 "nds32_load_multiple_operation"
145 [(set (match_operand:SI 2 "register_operand" "")
146 (mem:SI (match_operand:SI 1 "register_operand" "r")))
147 (set (match_operand:SI 3 "register_operand" "")
148 (mem:SI (plus:SI (match_dup 1) (const_int 4))))
149 (set (match_operand:SI 4 "register_operand" "")
150 (mem:SI (plus:SI (match_dup 1) (const_int 8))))
151 (set (match_operand:SI 5 "register_operand" "")
152 (mem:SI (plus:SI (match_dup 1) (const_int 12))))
153 (set (match_operand:SI 6 "register_operand" "")
154 (mem:SI (plus:SI (match_dup 1) (const_int 16))))])]
155 "(XVECLEN (operands[0], 0) == 5)"
156 "lmw.bi\t%2, [%1], %6, 0x0"
157 [(set_attr "type" "load")
158 (set_attr "length" "4")]
161 (define_insn "*lmwsi4"
162 [(match_parallel 0 "nds32_load_multiple_operation"
163 [(set (match_operand:SI 2 "register_operand" "")
164 (mem:SI (match_operand:SI 1 "register_operand" "r")))
165 (set (match_operand:SI 3 "register_operand" "")
166 (mem:SI (plus:SI (match_dup 1) (const_int 4))))
167 (set (match_operand:SI 4 "register_operand" "")
168 (mem:SI (plus:SI (match_dup 1) (const_int 8))))
169 (set (match_operand:SI 5 "register_operand" "")
170 (mem:SI (plus:SI (match_dup 1) (const_int 12))))])]
171 "(XVECLEN (operands[0], 0) == 4)"
172 "lmw.bi\t%2, [%1], %5, 0x0"
173 [(set_attr "type" "load")
174 (set_attr "length" "4")]
177 (define_insn "*lmwsi3"
178 [(match_parallel 0 "nds32_load_multiple_operation"
179 [(set (match_operand:SI 2 "register_operand" "")
180 (mem:SI (match_operand:SI 1 "register_operand" "r")))
181 (set (match_operand:SI 3 "register_operand" "")
182 (mem:SI (plus:SI (match_dup 1) (const_int 4))))
183 (set (match_operand:SI 4 "register_operand" "")
184 (mem:SI (plus:SI (match_dup 1) (const_int 8))))])]
185 "(XVECLEN (operands[0], 0) == 3)"
186 "lmw.bi\t%2, [%1], %4, 0x0"
187 [(set_attr "type" "load")
188 (set_attr "length" "4")]
191 (define_insn "*lmwsi2"
192 [(match_parallel 0 "nds32_load_multiple_operation"
193 [(set (match_operand:SI 2 "register_operand" "")
194 (mem:SI (match_operand:SI 1 "register_operand" "r")))
195 (set (match_operand:SI 3 "register_operand" "")
196 (mem:SI (plus:SI (match_dup 1) (const_int 4))))])]
197 "(XVECLEN (operands[0], 0) == 2)"
198 "lmw.bi\t%2, [%1], %3, 0x0"
199 [(set_attr "type" "load")
200 (set_attr "length" "4")]
204 ;; Store Multiple Insns.
206 ;; operands[0] is the first memory location.
207 ;; opernads[1] is the first of the consecutive registers.
208 ;; operands[2] is the number of consecutive registers.
210 (define_expand "store_multiple"
211 [(match_par_dup 3 [(set (match_operand:SI 0 "" "")
212 (match_operand:SI 1 "" ""))
213 (use (match_operand:SI 2 "" ""))])]
218 /* Because reduced-set regsiters has few registers
219 (r0~r5, r6~10, r15, r28~r31, where 'r15' and 'r28~r31' cannot
220 be used for register allocation),
221 using 8 registers for store_multiple may easily consume all of them.
222 It makes register allocation/spilling hard to work.
223 So we only allow maximum=4 registers for store_multiple
224 under reduced-set registers. */
225 if (TARGET_REDUCED_REGS)
230 /* Here are the conditions that must be all passed,
231 otherwise we have to FAIL this rtx generation:
232 1. The number of consecutive registers must be integer.
233 2. Maximum 4 or 8 registers for smw.bi instruction
234 (based on this nds32-multiple.md design).
235 3. Minimum 2 registers for smw.bi instruction
236 (based on this nds32-multiple.md design).
237 4. operands[0] must be memory for sure.
238 5. operands[1] must be register for sure.
239 6. Do not cross $r15 register because it is not allocatable. */
240 if (GET_CODE (operands[2]) != CONST_INT
241 || INTVAL (operands[2]) > maximum
242 || INTVAL (operands[2]) < 2
243 || GET_CODE (operands[0]) != MEM
244 || GET_CODE (operands[1]) != REG
245 || REGNO (operands[1]) + INTVAL (operands[2]) > TA_REGNUM)
248 /* For (mem addr), we force_reg on addr here,
249 so that nds32_expand_store_multiple can easily use it. */
250 operands[3] = nds32_expand_store_multiple (REGNO (operands[1]),
251 INTVAL (operands[2]),
253 XEXP (operands[0], 0)),
257 ;; Ordinary Store Multiple.
259 (define_insn "*stmsi8"
260 [(match_parallel 0 "nds32_store_multiple_operation"
261 [(set (mem:SI (match_operand:SI 1 "register_operand" "r"))
262 (match_operand:SI 2 "register_operand" ""))
263 (set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
264 (match_operand:SI 3 "register_operand" ""))
265 (set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
266 (match_operand:SI 4 "register_operand" ""))
267 (set (mem:SI (plus:SI (match_dup 1) (const_int 12)))
268 (match_operand:SI 5 "register_operand" ""))
269 (set (mem:SI (plus:SI (match_dup 1) (const_int 16)))
270 (match_operand:SI 6 "register_operand" ""))
271 (set (mem:SI (plus:SI (match_dup 1) (const_int 20)))
272 (match_operand:SI 7 "register_operand" ""))
273 (set (mem:SI (plus:SI (match_dup 1) (const_int 24)))
274 (match_operand:SI 8 "register_operand" ""))
275 (set (mem:SI (plus:SI (match_dup 1) (const_int 28)))
276 (match_operand:SI 9 "register_operand" ""))])]
277 "(XVECLEN (operands[0], 0) == 8)"
278 "smw.bi\t%2, [%1], %9, 0x0"
279 [(set_attr "type" "store")
280 (set_attr "length" "4")]
283 (define_insn "*stmsi7"
284 [(match_parallel 0 "nds32_store_multiple_operation"
285 [(set (mem:SI (match_operand:SI 1 "register_operand" "r"))
286 (match_operand:SI 2 "register_operand" ""))
287 (set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
288 (match_operand:SI 3 "register_operand" ""))
289 (set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
290 (match_operand:SI 4 "register_operand" ""))
291 (set (mem:SI (plus:SI (match_dup 1) (const_int 12)))
292 (match_operand:SI 5 "register_operand" ""))
293 (set (mem:SI (plus:SI (match_dup 1) (const_int 16)))
294 (match_operand:SI 6 "register_operand" ""))
295 (set (mem:SI (plus:SI (match_dup 1) (const_int 20)))
296 (match_operand:SI 7 "register_operand" ""))
297 (set (mem:SI (plus:SI (match_dup 1) (const_int 24)))
298 (match_operand:SI 8 "register_operand" ""))])]
299 "(XVECLEN (operands[0], 0) == 7)"
300 "smw.bi\t%2, [%1], %8, 0x0"
301 [(set_attr "type" "store")
302 (set_attr "length" "4")]
305 (define_insn "*stmsi6"
306 [(match_parallel 0 "nds32_store_multiple_operation"
307 [(set (mem:SI (match_operand:SI 1 "register_operand" "r"))
308 (match_operand:SI 2 "register_operand" ""))
309 (set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
310 (match_operand:SI 3 "register_operand" ""))
311 (set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
312 (match_operand:SI 4 "register_operand" ""))
313 (set (mem:SI (plus:SI (match_dup 1) (const_int 12)))
314 (match_operand:SI 5 "register_operand" ""))
315 (set (mem:SI (plus:SI (match_dup 1) (const_int 16)))
316 (match_operand:SI 6 "register_operand" ""))
317 (set (mem:SI (plus:SI (match_dup 1) (const_int 20)))
318 (match_operand:SI 7 "register_operand" ""))])]
319 "(XVECLEN (operands[0], 0) == 6)"
320 "smw.bi\t%2, [%1], %7, 0x0"
321 [(set_attr "type" "store")
322 (set_attr "length" "4")]
325 (define_insn "*stmsi5"
326 [(match_parallel 0 "nds32_store_multiple_operation"
327 [(set (mem:SI (match_operand:SI 1 "register_operand" "r"))
328 (match_operand:SI 2 "register_operand" ""))
329 (set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
330 (match_operand:SI 3 "register_operand" ""))
331 (set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
332 (match_operand:SI 4 "register_operand" ""))
333 (set (mem:SI (plus:SI (match_dup 1) (const_int 12)))
334 (match_operand:SI 5 "register_operand" ""))
335 (set (mem:SI (plus:SI (match_dup 1) (const_int 16)))
336 (match_operand:SI 6 "register_operand" ""))])]
337 "(XVECLEN (operands[0], 0) == 5)"
338 "smw.bi\t%2, [%1], %6, 0x0"
339 [(set_attr "type" "store")
340 (set_attr "length" "4")]
343 (define_insn "*stmsi4"
344 [(match_parallel 0 "nds32_store_multiple_operation"
345 [(set (mem:SI (match_operand:SI 1 "register_operand" "r"))
346 (match_operand:SI 2 "register_operand" ""))
347 (set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
348 (match_operand:SI 3 "register_operand" ""))
349 (set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
350 (match_operand:SI 4 "register_operand" ""))
351 (set (mem:SI (plus:SI (match_dup 1) (const_int 12)))
352 (match_operand:SI 5 "register_operand" ""))])]
353 "(XVECLEN (operands[0], 0) == 4)"
354 "smw.bi\t%2, [%1], %5, 0x0"
355 [(set_attr "type" "store")
356 (set_attr "length" "4")]
359 (define_insn "*stmsi3"
360 [(match_parallel 0 "nds32_store_multiple_operation"
361 [(set (mem:SI (match_operand:SI 1 "register_operand" "r"))
362 (match_operand:SI 2 "register_operand" ""))
363 (set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
364 (match_operand:SI 3 "register_operand" ""))
365 (set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
366 (match_operand:SI 4 "register_operand" ""))])]
367 "(XVECLEN (operands[0], 0) == 3)"
368 "smw.bi\t%2, [%1], %4, 0x0"
369 [(set_attr "type" "store")
370 (set_attr "length" "4")]
373 (define_insn "*stmsi2"
374 [(match_parallel 0 "nds32_store_multiple_operation"
375 [(set (mem:SI (match_operand:SI 1 "register_operand" "r"))
376 (match_operand:SI 2 "register_operand" ""))
377 (set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
378 (match_operand:SI 3 "register_operand" ""))])]
379 "(XVECLEN (operands[0], 0) == 2)"
380 "smw.bi\t%2, [%1], %3, 0x0"
381 [(set_attr "type" "store")
382 (set_attr "length" "4")]
385 ;; Move a block of memory if it is word aligned and MORE than 2 words long.
386 ;; We could let this apply for blocks of less than this, but it clobbers so
387 ;; many registers that there is then probably a better way.
389 ;; operands[0] is the destination block of memory.
390 ;; operands[1] is the source block of memory.
391 ;; operands[2] is the number of bytes to move.
392 ;; operands[3] is the known shared alignment.
394 (define_expand "movmemqi"
395 [(match_operand:BLK 0 "general_operand" "")
396 (match_operand:BLK 1 "general_operand" "")
397 (match_operand:SI 2 "const_int_operand" "")
398 (match_operand:SI 3 "const_int_operand" "")]
401 if (nds32_expand_movmemqi (operands[0],
410 ;; ------------------------------------------------------------------------