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ae180d84 | 1 | /* Subroutines for insn-output.c for NEC V850 series |
a5544970 | 2 | Copyright (C) 1996-2019 Free Software Foundation, Inc. |
ae180d84 JL |
3 | Contributed by Jeff Law (law@cygnus.com). |
4 | ||
301ee2f3 | 5 | This file is part of GCC. |
ae180d84 | 6 | |
301ee2f3 | 7 | GCC is free software; you can redistribute it and/or modify it |
8376061d | 8 | under the terms of the GNU General Public License as published by |
2f83c7d6 | 9 | the Free Software Foundation; either version 3, or (at your option) |
8376061d | 10 | any later version. |
ae180d84 | 11 | |
301ee2f3 | 12 | GCC is distributed in the hope that it will be useful, but WITHOUT |
8376061d CM |
13 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
ae180d84 | 16 | |
8376061d | 17 | You should have received a copy of the GNU General Public License |
2f83c7d6 NC |
18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
ae180d84 | 20 | |
8fcc61f8 RS |
21 | #define IN_TARGET_CODE 1 |
22 | ||
ab87f8c8 | 23 | #include "config.h" |
c5c76735 | 24 | #include "system.h" |
4977bab6 | 25 | #include "coretypes.h" |
c7131fb2 | 26 | #include "backend.h" |
e11c4407 | 27 | #include "target.h" |
c7131fb2 | 28 | #include "rtl.h" |
e11c4407 | 29 | #include "tree.h" |
c7131fb2 | 30 | #include "df.h" |
4d0cdd0c | 31 | #include "memmodel.h" |
e11c4407 | 32 | #include "tm_p.h" |
d8a2d370 | 33 | #include "stringpool.h" |
2643d17f | 34 | #include "attribs.h" |
e11c4407 AM |
35 | #include "insn-config.h" |
36 | #include "regs.h" | |
37 | #include "emit-rtl.h" | |
38 | #include "recog.h" | |
39 | #include "diagnostic-core.h" | |
d8a2d370 DN |
40 | #include "stor-layout.h" |
41 | #include "varasm.h" | |
42 | #include "calls.h" | |
ae180d84 | 43 | #include "conditions.h" |
ae180d84 JL |
44 | #include "output.h" |
45 | #include "insn-attr.h" | |
36566b39 | 46 | #include "expr.h" |
60393bbc | 47 | #include "cfgrtl.h" |
9b2b7279 | 48 | #include "builtins.h" |
3ce15347 | 49 | |
994c5d85 | 50 | /* This file should be included last. */ |
d58627a0 RS |
51 | #include "target-def.h" |
52 | ||
3ce15347 NC |
53 | #ifndef streq |
54 | #define streq(a,b) (strcmp (a, b) == 0) | |
55 | #endif | |
56 | ||
cc8ca59e | 57 | static void v850_print_operand_address (FILE *, machine_mode, rtx); |
ae180d84 | 58 | |
c3edd394 | 59 | /* Names of the various data areas used on the v850. */ |
cd47dfd0 NC |
60 | const char * GHS_default_section_names [(int) COUNT_OF_GHS_SECTION_KINDS]; |
61 | const char * GHS_current_section_names [(int) COUNT_OF_GHS_SECTION_KINDS]; | |
c3edd394 NC |
62 | |
63 | /* Track the current data area set by the data area pragma (which | |
64 | can be nested). Tested by check_default_data_area. */ | |
65 | data_area_stack_element * data_area_stack = NULL; | |
66 | ||
ae180d84 | 67 | /* True if we don't need to check any more if the current |
c3edd394 | 68 | function is an interrupt handler. */ |
ae180d84 JL |
69 | static int v850_interrupt_cache_p = FALSE; |
70 | ||
71 | /* Whether current function is an interrupt handler. */ | |
72 | static int v850_interrupt_p = FALSE; | |
d6b5193b | 73 | |
122603fa N |
74 | static GTY(()) section * rosdata_section; |
75 | static GTY(()) section * rozdata_section; | |
76 | static GTY(()) section * tdata_section; | |
77 | static GTY(()) section * zdata_section; | |
78 | static GTY(()) section * zbss_section; | |
ae180d84 | 79 | \f |
b84d824d NC |
80 | /* We use this to wrap all emitted insns in the prologue. */ |
81 | static rtx | |
82 | F (rtx x) | |
83 | { | |
84 | if (GET_CODE (x) != CLOBBER) | |
85 | RTX_FRAME_RELATED_P (x) = 1; | |
86 | return x; | |
87 | } | |
88 | ||
89 | /* Mark all the subexpressions of the PARALLEL rtx PAR as | |
90 | frame-related. Return PAR. | |
91 | ||
92 | dwarf2out.c:dwarf2out_frame_debug_expr ignores sub-expressions of a | |
93 | PARALLEL rtx other than the first if they do not have the | |
94 | FRAME_RELATED flag set on them. */ | |
95 | ||
96 | static rtx | |
97 | v850_all_frame_related (rtx par) | |
98 | { | |
99 | int len = XVECLEN (par, 0); | |
100 | int i; | |
101 | ||
102 | gcc_assert (GET_CODE (par) == PARALLEL); | |
103 | for (i = 0; i < len; i++) | |
104 | F (XVECEXP (par, 0, i)); | |
105 | ||
106 | return par; | |
107 | } | |
108 | ||
223a9d64 N |
109 | /* Handle the TARGET_PASS_BY_REFERENCE target hook. |
110 | Specify whether to pass the argument by reference. */ | |
111 | ||
8cd5a4e0 | 112 | static bool |
52090e4d | 113 | v850_pass_by_reference (cumulative_args_t, const function_arg_info &arg) |
8cd5a4e0 | 114 | { |
b84d824d NC |
115 | if (!TARGET_GCC_ABI) |
116 | return 0; | |
117 | ||
52090e4d | 118 | unsigned HOST_WIDE_INT size = arg.type_size_in_bytes (); |
8cd5a4e0 RH |
119 | return size > 8; |
120 | } | |
ae180d84 | 121 | |
6783fdb7 RS |
122 | /* Return an RTX to represent where argument ARG will be passed to a function. |
123 | If the result is NULL_RTX, the argument will be pushed. */ | |
ae180d84 | 124 | |
74a3d2c3 | 125 | static rtx |
6783fdb7 | 126 | v850_function_arg (cumulative_args_t cum_v, const function_arg_info &arg) |
ae180d84 | 127 | { |
d5cc9181 | 128 | CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); |
356aaf8b | 129 | rtx result = NULL_RTX; |
ae180d84 JL |
130 | int size, align; |
131 | ||
6783fdb7 | 132 | if (!arg.named) |
ae180d84 JL |
133 | return NULL_RTX; |
134 | ||
6783fdb7 | 135 | size = arg.promoted_size_in_bytes (); |
223a9d64 N |
136 | size = (size + UNITS_PER_WORD -1) & ~(UNITS_PER_WORD -1); |
137 | ||
b4378319 | 138 | if (size < 1) |
356aaf8b NC |
139 | { |
140 | /* Once we have stopped using argument registers, do not start up again. */ | |
141 | cum->nbytes = 4 * UNITS_PER_WORD; | |
142 | return NULL_RTX; | |
143 | } | |
b4378319 | 144 | |
b84d824d NC |
145 | if (!TARGET_GCC_ABI) |
146 | align = UNITS_PER_WORD; | |
6783fdb7 RS |
147 | else if (size <= UNITS_PER_WORD && arg.type) |
148 | align = TYPE_ALIGN (arg.type) / BITS_PER_UNIT; | |
ae180d84 JL |
149 | else |
150 | align = size; | |
151 | ||
152 | cum->nbytes = (cum->nbytes + align - 1) &~(align - 1); | |
153 | ||
154 | if (cum->nbytes > 4 * UNITS_PER_WORD) | |
356aaf8b | 155 | return NULL_RTX; |
ae180d84 | 156 | |
6783fdb7 | 157 | if (arg.type == NULL_TREE |
ae180d84 | 158 | && cum->nbytes + size > 4 * UNITS_PER_WORD) |
356aaf8b | 159 | return NULL_RTX; |
ae180d84 JL |
160 | |
161 | switch (cum->nbytes / UNITS_PER_WORD) | |
162 | { | |
163 | case 0: | |
6783fdb7 | 164 | result = gen_rtx_REG (arg.mode, 6); |
ae180d84 JL |
165 | break; |
166 | case 1: | |
6783fdb7 | 167 | result = gen_rtx_REG (arg.mode, 7); |
ae180d84 JL |
168 | break; |
169 | case 2: | |
6783fdb7 | 170 | result = gen_rtx_REG (arg.mode, 8); |
ae180d84 JL |
171 | break; |
172 | case 3: | |
6783fdb7 | 173 | result = gen_rtx_REG (arg.mode, 9); |
ae180d84 JL |
174 | break; |
175 | default: | |
356aaf8b | 176 | result = NULL_RTX; |
ae180d84 JL |
177 | } |
178 | ||
179 | return result; | |
180 | } | |
181 | ||
78a52f11 | 182 | /* Return the number of bytes which must be put into registers |
ae180d84 | 183 | for values which are part in registers and part in memory. */ |
78a52f11 | 184 | static int |
a7c81bc1 | 185 | v850_arg_partial_bytes (cumulative_args_t cum_v, const function_arg_info &arg) |
ae180d84 | 186 | { |
d5cc9181 | 187 | CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); |
ae180d84 JL |
188 | int size, align; |
189 | ||
a7c81bc1 | 190 | if (!arg.named) |
ae180d84 JL |
191 | return 0; |
192 | ||
a7c81bc1 | 193 | size = arg.promoted_size_in_bytes (); |
356aaf8b NC |
194 | if (size < 1) |
195 | size = 1; | |
196 | ||
b84d824d NC |
197 | if (!TARGET_GCC_ABI) |
198 | align = UNITS_PER_WORD; | |
a7c81bc1 RS |
199 | else if (arg.type) |
200 | align = TYPE_ALIGN (arg.type) / BITS_PER_UNIT; | |
ae180d84 JL |
201 | else |
202 | align = size; | |
203 | ||
356aaf8b | 204 | cum->nbytes = (cum->nbytes + align - 1) & ~ (align - 1); |
ae180d84 JL |
205 | |
206 | if (cum->nbytes > 4 * UNITS_PER_WORD) | |
207 | return 0; | |
208 | ||
209 | if (cum->nbytes + size <= 4 * UNITS_PER_WORD) | |
210 | return 0; | |
211 | ||
a7c81bc1 | 212 | if (arg.type == NULL_TREE |
ae180d84 JL |
213 | && cum->nbytes + size > 4 * UNITS_PER_WORD) |
214 | return 0; | |
215 | ||
78a52f11 | 216 | return 4 * UNITS_PER_WORD - cum->nbytes; |
ae180d84 JL |
217 | } |
218 | ||
74a3d2c3 NF |
219 | /* Update the data in CUM to advance over an argument |
220 | of mode MODE and data type TYPE. | |
221 | (TYPE is null for libcalls where that information may not be available.) */ | |
222 | ||
223 | static void | |
ef4bddc2 | 224 | v850_function_arg_advance (cumulative_args_t cum_v, machine_mode mode, |
74a3d2c3 NF |
225 | const_tree type, bool named ATTRIBUTE_UNUSED) |
226 | { | |
d5cc9181 JR |
227 | CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); |
228 | ||
b84d824d NC |
229 | if (!TARGET_GCC_ABI) |
230 | cum->nbytes += (((mode != BLKmode | |
231 | ? GET_MODE_SIZE (mode) | |
232 | : int_size_in_bytes (type)) + UNITS_PER_WORD - 1) | |
233 | & -UNITS_PER_WORD); | |
234 | else | |
235 | cum->nbytes += (((type && int_size_in_bytes (type) > 8 | |
236 | ? GET_MODE_SIZE (Pmode) | |
237 | : (mode != BLKmode | |
238 | ? GET_MODE_SIZE (mode) | |
239 | : int_size_in_bytes (type))) + UNITS_PER_WORD - 1) | |
240 | & -UNITS_PER_WORD); | |
74a3d2c3 NF |
241 | } |
242 | ||
ae180d84 JL |
243 | /* Return the high and low words of a CONST_DOUBLE */ |
244 | ||
245 | static void | |
59f3507d | 246 | const_double_split (rtx x, HOST_WIDE_INT * p_high, HOST_WIDE_INT * p_low) |
ae180d84 JL |
247 | { |
248 | if (GET_CODE (x) == CONST_DOUBLE) | |
249 | { | |
250 | long t[2]; | |
ae180d84 JL |
251 | |
252 | switch (GET_MODE (x)) | |
253 | { | |
4e10a5a7 | 254 | case E_DFmode: |
34a72c33 | 255 | REAL_VALUE_TO_TARGET_DOUBLE (*CONST_DOUBLE_REAL_VALUE (x), t); |
ae180d84 JL |
256 | *p_high = t[1]; /* since v850 is little endian */ |
257 | *p_low = t[0]; /* high is second word */ | |
258 | return; | |
259 | ||
4e10a5a7 | 260 | case E_SFmode: |
34a72c33 | 261 | REAL_VALUE_TO_TARGET_SINGLE (*CONST_DOUBLE_REAL_VALUE (x), *p_high); |
ae180d84 JL |
262 | *p_low = 0; |
263 | return; | |
264 | ||
4e10a5a7 RS |
265 | case E_VOIDmode: |
266 | case E_DImode: | |
ae180d84 JL |
267 | *p_high = CONST_DOUBLE_HIGH (x); |
268 | *p_low = CONST_DOUBLE_LOW (x); | |
269 | return; | |
3ce15347 NC |
270 | |
271 | default: | |
272 | break; | |
ae180d84 JL |
273 | } |
274 | } | |
275 | ||
276 | fatal_insn ("const_double_split got a bad insn:", x); | |
277 | } | |
278 | ||
279 | \f | |
280 | /* Return the cost of the rtx R with code CODE. */ | |
281 | ||
282 | static int | |
59f3507d | 283 | const_costs_int (HOST_WIDE_INT value, int zero_cost) |
ae180d84 JL |
284 | { |
285 | if (CONST_OK_FOR_I (value)) | |
286 | return zero_cost; | |
287 | else if (CONST_OK_FOR_J (value)) | |
288 | return 1; | |
289 | else if (CONST_OK_FOR_K (value)) | |
290 | return 2; | |
291 | else | |
292 | return 4; | |
293 | } | |
294 | ||
3c50106f | 295 | static int |
59f3507d | 296 | const_costs (rtx r, enum rtx_code c) |
ae180d84 JL |
297 | { |
298 | HOST_WIDE_INT high, low; | |
299 | ||
300 | switch (c) | |
301 | { | |
302 | case CONST_INT: | |
303 | return const_costs_int (INTVAL (r), 0); | |
304 | ||
305 | case CONST_DOUBLE: | |
306 | const_double_split (r, &high, &low); | |
307 | if (GET_MODE (r) == SFmode) | |
308 | return const_costs_int (high, 1); | |
309 | else | |
310 | return const_costs_int (high, 1) + const_costs_int (low, 1); | |
311 | ||
312 | case SYMBOL_REF: | |
313 | case LABEL_REF: | |
314 | case CONST: | |
315 | return 2; | |
316 | ||
317 | case HIGH: | |
318 | return 1; | |
319 | ||
320 | default: | |
321 | return 4; | |
322 | } | |
323 | } | |
324 | ||
3c50106f | 325 | static bool |
e548c9df AM |
326 | v850_rtx_costs (rtx x, machine_mode mode, int outer_code, |
327 | int opno ATTRIBUTE_UNUSED, int *total, bool speed) | |
3c50106f | 328 | { |
e548c9df | 329 | enum rtx_code code = GET_CODE (x); |
5a82ecd9 | 330 | |
3c50106f RH |
331 | switch (code) |
332 | { | |
333 | case CONST_INT: | |
334 | case CONST_DOUBLE: | |
335 | case CONST: | |
336 | case SYMBOL_REF: | |
337 | case LABEL_REF: | |
338 | *total = COSTS_N_INSNS (const_costs (x, code)); | |
339 | return true; | |
340 | ||
341 | case MOD: | |
342 | case DIV: | |
343 | case UMOD: | |
344 | case UDIV: | |
f40751dd | 345 | if (TARGET_V850E && !speed) |
3c50106f RH |
346 | *total = 6; |
347 | else | |
348 | *total = 60; | |
349 | return true; | |
350 | ||
351 | case MULT: | |
352 | if (TARGET_V850E | |
e548c9df | 353 | && (mode == SImode || mode == HImode || mode == QImode)) |
3c50106f RH |
354 | { |
355 | if (GET_CODE (XEXP (x, 1)) == REG) | |
356 | *total = 4; | |
357 | else if (GET_CODE (XEXP (x, 1)) == CONST_INT) | |
358 | { | |
359 | if (CONST_OK_FOR_O (INTVAL (XEXP (x, 1)))) | |
360 | *total = 6; | |
361 | else if (CONST_OK_FOR_K (INTVAL (XEXP (x, 1)))) | |
362 | *total = 10; | |
363 | } | |
364 | } | |
365 | else | |
366 | *total = 20; | |
367 | return true; | |
368 | ||
f90b7a5a PB |
369 | case ZERO_EXTRACT: |
370 | if (outer_code == COMPARE) | |
371 | *total = 0; | |
372 | return false; | |
373 | ||
3c50106f RH |
374 | default: |
375 | return false; | |
376 | } | |
377 | } | |
ae180d84 JL |
378 | \f |
379 | /* Print operand X using operand code CODE to assembly language output file | |
380 | FILE. */ | |
381 | ||
11d259f0 NF |
382 | static void |
383 | v850_print_operand (FILE * file, rtx x, int code) | |
ae180d84 JL |
384 | { |
385 | HOST_WIDE_INT high, low; | |
386 | ||
387 | switch (code) | |
388 | { | |
5ca2111f | 389 | case 'c': |
b12b5029 | 390 | /* We use 'c' operands with symbols for .vtinherit. */ |
5ca2111f CM |
391 | if (GET_CODE (x) == SYMBOL_REF) |
392 | { | |
393 | output_addr_const(file, x); | |
394 | break; | |
395 | } | |
b12b5029 | 396 | /* Fall through. */ |
ae180d84 JL |
397 | case 'b': |
398 | case 'B': | |
1933ec7e | 399 | case 'C': |
1ec0eb08 JL |
400 | case 'd': |
401 | case 'D': | |
402 | switch ((code == 'B' || code == 'C' || code == 'D') | |
1933ec7e | 403 | ? reverse_condition (GET_CODE (x)) : GET_CODE (x)) |
ae180d84 JL |
404 | { |
405 | case NE: | |
1933ec7e JW |
406 | if (code == 'c' || code == 'C') |
407 | fprintf (file, "nz"); | |
408 | else | |
409 | fprintf (file, "ne"); | |
ae180d84 JL |
410 | break; |
411 | case EQ: | |
1933ec7e JW |
412 | if (code == 'c' || code == 'C') |
413 | fprintf (file, "z"); | |
414 | else | |
415 | fprintf (file, "e"); | |
ae180d84 JL |
416 | break; |
417 | case GE: | |
1ec0eb08 JL |
418 | if (code == 'D' || code == 'd') |
419 | fprintf (file, "p"); | |
420 | else | |
421 | fprintf (file, "ge"); | |
ae180d84 JL |
422 | break; |
423 | case GT: | |
1933ec7e | 424 | fprintf (file, "gt"); |
ae180d84 JL |
425 | break; |
426 | case LE: | |
1933ec7e | 427 | fprintf (file, "le"); |
ae180d84 JL |
428 | break; |
429 | case LT: | |
1ec0eb08 JL |
430 | if (code == 'D' || code == 'd') |
431 | fprintf (file, "n"); | |
432 | else | |
433 | fprintf (file, "lt"); | |
ae180d84 JL |
434 | break; |
435 | case GEU: | |
1933ec7e | 436 | fprintf (file, "nl"); |
ae180d84 JL |
437 | break; |
438 | case GTU: | |
1933ec7e | 439 | fprintf (file, "h"); |
ae180d84 JL |
440 | break; |
441 | case LEU: | |
1933ec7e | 442 | fprintf (file, "nh"); |
ae180d84 JL |
443 | break; |
444 | case LTU: | |
1933ec7e | 445 | fprintf (file, "l"); |
ae180d84 JL |
446 | break; |
447 | default: | |
f2f84cba | 448 | gcc_unreachable (); |
ae180d84 JL |
449 | } |
450 | break; | |
b12b5029 | 451 | case 'F': /* High word of CONST_DOUBLE. */ |
f2f84cba | 452 | switch (GET_CODE (x)) |
ae180d84 | 453 | { |
f2f84cba NS |
454 | case CONST_INT: |
455 | fprintf (file, "%d", (INTVAL (x) >= 0) ? 0 : -1); | |
456 | break; | |
457 | ||
458 | case CONST_DOUBLE: | |
ae180d84 JL |
459 | const_double_split (x, &high, &low); |
460 | fprintf (file, "%ld", (long) high); | |
f2f84cba NS |
461 | break; |
462 | ||
463 | default: | |
464 | gcc_unreachable (); | |
ae180d84 | 465 | } |
ae180d84 | 466 | break; |
b12b5029 | 467 | case 'G': /* Low word of CONST_DOUBLE. */ |
f2f84cba | 468 | switch (GET_CODE (x)) |
ae180d84 | 469 | { |
f2f84cba NS |
470 | case CONST_INT: |
471 | fprintf (file, "%ld", (long) INTVAL (x)); | |
472 | break; | |
473 | ||
474 | case CONST_DOUBLE: | |
ae180d84 JL |
475 | const_double_split (x, &high, &low); |
476 | fprintf (file, "%ld", (long) low); | |
f2f84cba NS |
477 | break; |
478 | ||
479 | default: | |
480 | gcc_unreachable (); | |
ae180d84 | 481 | } |
ae180d84 JL |
482 | break; |
483 | case 'L': | |
e0b3adcb | 484 | fprintf (file, "%d\n", (int)(INTVAL (x) & 0xffff)); |
ae180d84 JL |
485 | break; |
486 | case 'M': | |
487 | fprintf (file, "%d", exact_log2 (INTVAL (x))); | |
488 | break; | |
489 | case 'O': | |
f2f84cba NS |
490 | gcc_assert (special_symbolref_operand (x, VOIDmode)); |
491 | ||
492 | if (GET_CODE (x) == CONST) | |
493 | x = XEXP (XEXP (x, 0), 0); | |
494 | else | |
495 | gcc_assert (GET_CODE (x) == SYMBOL_REF); | |
496 | ||
497 | if (SYMBOL_REF_ZDA_P (x)) | |
498 | fprintf (file, "zdaoff"); | |
499 | else if (SYMBOL_REF_SDA_P (x)) | |
500 | fprintf (file, "sdaoff"); | |
501 | else if (SYMBOL_REF_TDA_P (x)) | |
502 | fprintf (file, "tdaoff"); | |
ae180d84 | 503 | else |
f2f84cba | 504 | gcc_unreachable (); |
ae180d84 JL |
505 | break; |
506 | case 'P': | |
f2f84cba NS |
507 | gcc_assert (special_symbolref_operand (x, VOIDmode)); |
508 | output_addr_const (file, x); | |
ae180d84 JL |
509 | break; |
510 | case 'Q': | |
f2f84cba NS |
511 | gcc_assert (special_symbolref_operand (x, VOIDmode)); |
512 | ||
513 | if (GET_CODE (x) == CONST) | |
514 | x = XEXP (XEXP (x, 0), 0); | |
ae180d84 | 515 | else |
f2f84cba NS |
516 | gcc_assert (GET_CODE (x) == SYMBOL_REF); |
517 | ||
518 | if (SYMBOL_REF_ZDA_P (x)) | |
519 | fprintf (file, "r0"); | |
520 | else if (SYMBOL_REF_SDA_P (x)) | |
521 | fprintf (file, "gp"); | |
522 | else if (SYMBOL_REF_TDA_P (x)) | |
523 | fprintf (file, "ep"); | |
524 | else | |
525 | gcc_unreachable (); | |
ae180d84 JL |
526 | break; |
527 | case 'R': /* 2nd word of a double. */ | |
528 | switch (GET_CODE (x)) | |
529 | { | |
3ce15347 NC |
530 | case REG: |
531 | fprintf (file, reg_names[REGNO (x) + 1]); | |
532 | break; | |
533 | case MEM: | |
cc8ca59e JB |
534 | { |
535 | machine_mode mode = GET_MODE (x); | |
536 | x = XEXP (adjust_address (x, SImode, 4), 0); | |
537 | v850_print_operand_address (file, mode, x); | |
538 | if (GET_CODE (x) == CONST_INT) | |
539 | fprintf (file, "[r0]"); | |
540 | } | |
3ce15347 NC |
541 | break; |
542 | ||
b84d824d NC |
543 | case CONST_INT: |
544 | { | |
545 | unsigned HOST_WIDE_INT v = INTVAL (x); | |
546 | ||
547 | /* Trickery to avoid problems with shifting | |
548 | 32-bits at a time on a 32-bit host. */ | |
549 | v = v >> 16; | |
550 | v = v >> 16; | |
551 | fprintf (file, HOST_WIDE_INT_PRINT_HEX, v); | |
552 | break; | |
553 | } | |
554 | ||
555 | case CONST_DOUBLE: | |
556 | fprintf (file, HOST_WIDE_INT_PRINT_HEX, CONST_DOUBLE_HIGH (x)); | |
3ce15347 | 557 | break; |
b84d824d NC |
558 | |
559 | default: | |
560 | debug_rtx (x); | |
561 | gcc_unreachable (); | |
ae180d84 JL |
562 | } |
563 | break; | |
564 | case 'S': | |
565 | { | |
2ec6cd51 | 566 | /* If it's a reference to a TDA variable, use sst/sld vs. st/ld. */ |
145870b5 NC |
567 | if (GET_CODE (x) == MEM && ep_memory_operand (x, GET_MODE (x), FALSE)) |
568 | fputs ("s", file); | |
569 | ||
570 | break; | |
571 | } | |
572 | case 'T': | |
573 | { | |
574 | /* Like an 'S' operand above, but for unsigned loads only. */ | |
575 | if (GET_CODE (x) == MEM && ep_memory_operand (x, GET_MODE (x), TRUE)) | |
ae180d84 JL |
576 | fputs ("s", file); |
577 | ||
578 | break; | |
579 | } | |
b12b5029 | 580 | case 'W': /* Print the instruction suffix. */ |
ae180d84 JL |
581 | switch (GET_MODE (x)) |
582 | { | |
583 | default: | |
f2f84cba | 584 | gcc_unreachable (); |
ae180d84 | 585 | |
4e10a5a7 RS |
586 | case E_QImode: fputs (".b", file); break; |
587 | case E_HImode: fputs (".h", file); break; | |
588 | case E_SImode: fputs (".w", file); break; | |
589 | case E_SFmode: fputs (".w", file); break; | |
ae180d84 JL |
590 | } |
591 | break; | |
b12b5029 | 592 | case '.': /* Register r0. */ |
ae180d84 JL |
593 | fputs (reg_names[0], file); |
594 | break; | |
b12b5029 NC |
595 | case 'z': /* Reg or zero. */ |
596 | if (REG_P (x)) | |
1933ec7e | 597 | fputs (reg_names[REGNO (x)], file); |
223a9d64 N |
598 | else if ((GET_MODE(x) == SImode |
599 | || GET_MODE(x) == DFmode | |
600 | || GET_MODE(x) == SFmode) | |
601 | && x == CONST0_RTX(GET_MODE(x))) | |
602 | fputs (reg_names[0], file); | |
1933ec7e | 603 | else |
f2f84cba NS |
604 | { |
605 | gcc_assert (x == const0_rtx); | |
606 | fputs (reg_names[0], file); | |
607 | } | |
1933ec7e | 608 | break; |
ae180d84 JL |
609 | default: |
610 | switch (GET_CODE (x)) | |
611 | { | |
612 | case MEM: | |
613 | if (GET_CODE (XEXP (x, 0)) == CONST_INT) | |
cc8ca59e JB |
614 | output_address (GET_MODE (x), |
615 | gen_rtx_PLUS (SImode, gen_rtx_REG (SImode, 0), | |
c5c76735 | 616 | XEXP (x, 0))); |
ae180d84 | 617 | else |
cc8ca59e | 618 | output_address (GET_MODE (x), XEXP (x, 0)); |
ae180d84 JL |
619 | break; |
620 | ||
621 | case REG: | |
622 | fputs (reg_names[REGNO (x)], file); | |
623 | break; | |
624 | case SUBREG: | |
ddef6bc7 | 625 | fputs (reg_names[subreg_regno (x)], file); |
ae180d84 | 626 | break; |
b84d824d NC |
627 | case CONST_DOUBLE: |
628 | fprintf (file, HOST_WIDE_INT_PRINT_HEX, CONST_DOUBLE_LOW (x)); | |
629 | break; | |
630 | ||
ae180d84 JL |
631 | case CONST_INT: |
632 | case SYMBOL_REF: | |
633 | case CONST: | |
634 | case LABEL_REF: | |
635 | case CODE_LABEL: | |
cc8ca59e | 636 | v850_print_operand_address (file, VOIDmode, x); |
ae180d84 JL |
637 | break; |
638 | default: | |
f2f84cba | 639 | gcc_unreachable (); |
ae180d84 JL |
640 | } |
641 | break; | |
642 | ||
643 | } | |
644 | } | |
645 | ||
646 | \f | |
647 | /* Output assembly language output for the address ADDR to FILE. */ | |
648 | ||
11d259f0 | 649 | static void |
cc8ca59e | 650 | v850_print_operand_address (FILE * file, machine_mode /*mode*/, rtx addr) |
ae180d84 JL |
651 | { |
652 | switch (GET_CODE (addr)) | |
653 | { | |
654 | case REG: | |
655 | fprintf (file, "0["); | |
11d259f0 | 656 | v850_print_operand (file, addr, 0); |
ae180d84 JL |
657 | fprintf (file, "]"); |
658 | break; | |
659 | case LO_SUM: | |
660 | if (GET_CODE (XEXP (addr, 0)) == REG) | |
661 | { | |
662 | /* reg,foo */ | |
663 | fprintf (file, "lo("); | |
11d259f0 | 664 | v850_print_operand (file, XEXP (addr, 1), 0); |
ae180d84 | 665 | fprintf (file, ")["); |
11d259f0 | 666 | v850_print_operand (file, XEXP (addr, 0), 0); |
ae180d84 JL |
667 | fprintf (file, "]"); |
668 | } | |
669 | break; | |
670 | case PLUS: | |
671 | if (GET_CODE (XEXP (addr, 0)) == REG | |
672 | || GET_CODE (XEXP (addr, 0)) == SUBREG) | |
673 | { | |
674 | /* reg,foo */ | |
11d259f0 | 675 | v850_print_operand (file, XEXP (addr, 1), 0); |
ae180d84 | 676 | fprintf (file, "["); |
11d259f0 | 677 | v850_print_operand (file, XEXP (addr, 0), 0); |
ae180d84 JL |
678 | fprintf (file, "]"); |
679 | } | |
680 | else | |
681 | { | |
11d259f0 | 682 | v850_print_operand (file, XEXP (addr, 0), 0); |
ae180d84 | 683 | fprintf (file, "+"); |
11d259f0 | 684 | v850_print_operand (file, XEXP (addr, 1), 0); |
ae180d84 JL |
685 | } |
686 | break; | |
687 | case SYMBOL_REF: | |
50d1ff6a RH |
688 | { |
689 | const char *off_name = NULL; | |
690 | const char *reg_name = NULL; | |
691 | ||
692 | if (SYMBOL_REF_ZDA_P (addr)) | |
693 | { | |
694 | off_name = "zdaoff"; | |
695 | reg_name = "r0"; | |
696 | } | |
697 | else if (SYMBOL_REF_SDA_P (addr)) | |
698 | { | |
699 | off_name = "sdaoff"; | |
700 | reg_name = "gp"; | |
701 | } | |
702 | else if (SYMBOL_REF_TDA_P (addr)) | |
703 | { | |
704 | off_name = "tdaoff"; | |
705 | reg_name = "ep"; | |
706 | } | |
707 | ||
708 | if (off_name) | |
ae180d84 | 709 | fprintf (file, "%s(", off_name); |
ae180d84 | 710 | output_addr_const (file, addr); |
50d1ff6a RH |
711 | if (reg_name) |
712 | fprintf (file, ")[%s]", reg_name); | |
713 | } | |
ae180d84 JL |
714 | break; |
715 | case CONST: | |
716 | if (special_symbolref_operand (addr, VOIDmode)) | |
717 | { | |
50d1ff6a | 718 | rtx x = XEXP (XEXP (addr, 0), 0); |
3cce094d KG |
719 | const char *off_name; |
720 | const char *reg_name; | |
ae180d84 | 721 | |
50d1ff6a | 722 | if (SYMBOL_REF_ZDA_P (x)) |
ae180d84 JL |
723 | { |
724 | off_name = "zdaoff"; | |
725 | reg_name = "r0"; | |
726 | } | |
50d1ff6a | 727 | else if (SYMBOL_REF_SDA_P (x)) |
ae180d84 JL |
728 | { |
729 | off_name = "sdaoff"; | |
730 | reg_name = "gp"; | |
731 | } | |
50d1ff6a | 732 | else if (SYMBOL_REF_TDA_P (x)) |
ae180d84 JL |
733 | { |
734 | off_name = "tdaoff"; | |
735 | reg_name = "ep"; | |
736 | } | |
737 | else | |
f2f84cba | 738 | gcc_unreachable (); |
ae180d84 JL |
739 | |
740 | fprintf (file, "%s(", off_name); | |
741 | output_addr_const (file, addr); | |
742 | fprintf (file, ")[%s]", reg_name); | |
743 | } | |
744 | else | |
745 | output_addr_const (file, addr); | |
746 | break; | |
747 | default: | |
748 | output_addr_const (file, addr); | |
749 | break; | |
750 | } | |
751 | } | |
752 | ||
11d259f0 NF |
753 | static bool |
754 | v850_print_operand_punct_valid_p (unsigned char code) | |
755 | { | |
756 | return code == '.'; | |
757 | } | |
758 | ||
b4378319 NC |
759 | /* When assemble_integer is used to emit the offsets for a switch |
760 | table it can encounter (TRUNCATE:HI (MINUS:SI (LABEL_REF:SI) (LABEL_REF:SI))). | |
761 | output_addr_const will normally barf at this, but it is OK to omit | |
762 | the truncate and just emit the difference of the two labels. The | |
763 | .hword directive will automatically handle the truncation for us. | |
764 | ||
24da2019 | 765 | Returns true if rtx was handled, false otherwise. */ |
b4378319 | 766 | |
24da2019 | 767 | static bool |
59f3507d | 768 | v850_output_addr_const_extra (FILE * file, rtx x) |
b4378319 NC |
769 | { |
770 | if (GET_CODE (x) != TRUNCATE) | |
24da2019 | 771 | return false; |
b4378319 NC |
772 | |
773 | x = XEXP (x, 0); | |
774 | ||
775 | /* We must also handle the case where the switch table was passed a | |
776 | constant value and so has been collapsed. In this case the first | |
777 | label will have been deleted. In such a case it is OK to emit | |
778 | nothing, since the table will not be used. | |
779 | (cf gcc.c-torture/compile/990801-1.c). */ | |
780 | if (GET_CODE (x) == MINUS | |
4654c0cf TS |
781 | && GET_CODE (XEXP (x, 0)) == LABEL_REF) |
782 | { | |
783 | rtx_code_label *label | |
784 | = dyn_cast<rtx_code_label *> (XEXP (XEXP (x, 0), 0)); | |
785 | if (label && label->deleted ()) | |
786 | return true; | |
787 | } | |
b4378319 NC |
788 | |
789 | output_addr_const (file, x); | |
24da2019 | 790 | return true; |
b4378319 | 791 | } |
ae180d84 JL |
792 | \f |
793 | /* Return appropriate code to load up a 1, 2, or 4 integer/floating | |
794 | point value. */ | |
795 | ||
8b97c5f8 | 796 | const char * |
59f3507d | 797 | output_move_single (rtx * operands) |
ae180d84 JL |
798 | { |
799 | rtx dst = operands[0]; | |
800 | rtx src = operands[1]; | |
801 | ||
802 | if (REG_P (dst)) | |
803 | { | |
804 | if (REG_P (src)) | |
805 | return "mov %1,%0"; | |
806 | ||
807 | else if (GET_CODE (src) == CONST_INT) | |
808 | { | |
809 | HOST_WIDE_INT value = INTVAL (src); | |
810 | ||
22f23985 | 811 | if (CONST_OK_FOR_J (value)) /* Signed 5-bit immediate. */ |
ae180d84 JL |
812 | return "mov %1,%0"; |
813 | ||
22f23985 | 814 | else if (CONST_OK_FOR_K (value)) /* Signed 16-bit immediate. */ |
223a9d64 | 815 | return "movea %1,%.,%0"; |
ae180d84 | 816 | |
b4378319 | 817 | else if (CONST_OK_FOR_L (value)) /* Upper 16 bits were set. */ |
223a9d64 | 818 | return "movhi hi0(%1),%.,%0"; |
ae180d84 | 819 | |
b4378319 | 820 | /* A random constant. */ |
dbdbd982 | 821 | else if (TARGET_V850E_UP) |
b4378319 NC |
822 | return "mov %1,%0"; |
823 | else | |
ae180d84 JL |
824 | return "movhi hi(%1),%.,%0\n\tmovea lo(%1),%0,%0"; |
825 | } | |
826 | ||
827 | else if (GET_CODE (src) == CONST_DOUBLE && GET_MODE (src) == SFmode) | |
828 | { | |
829 | HOST_WIDE_INT high, low; | |
830 | ||
831 | const_double_split (src, &high, &low); | |
b4378319 | 832 | |
22f23985 | 833 | if (CONST_OK_FOR_J (high)) /* Signed 5-bit immediate. */ |
ae180d84 JL |
834 | return "mov %F1,%0"; |
835 | ||
22f23985 | 836 | else if (CONST_OK_FOR_K (high)) /* Signed 16-bit immediate. */ |
223a9d64 | 837 | return "movea %F1,%.,%0"; |
ae180d84 | 838 | |
b4378319 | 839 | else if (CONST_OK_FOR_L (high)) /* Upper 16 bits were set. */ |
223a9d64 | 840 | return "movhi hi0(%F1),%.,%0"; |
ae180d84 | 841 | |
b4378319 | 842 | /* A random constant. */ |
dbdbd982 | 843 | else if (TARGET_V850E_UP) |
b4378319 NC |
844 | return "mov %F1,%0"; |
845 | ||
846 | else | |
ae180d84 JL |
847 | return "movhi hi(%F1),%.,%0\n\tmovea lo(%F1),%0,%0"; |
848 | } | |
849 | ||
850 | else if (GET_CODE (src) == MEM) | |
851 | return "%S1ld%W1 %1,%0"; | |
852 | ||
853 | else if (special_symbolref_operand (src, VOIDmode)) | |
854 | return "movea %O1(%P1),%Q1,%0"; | |
855 | ||
856 | else if (GET_CODE (src) == LABEL_REF | |
857 | || GET_CODE (src) == SYMBOL_REF | |
858 | || GET_CODE (src) == CONST) | |
145870b5 | 859 | { |
dbdbd982 | 860 | if (TARGET_V850E_UP) |
b4378319 NC |
861 | return "mov hilo(%1),%0"; |
862 | else | |
863 | return "movhi hi(%1),%.,%0\n\tmovea lo(%1),%0,%0"; | |
145870b5 | 864 | } |
ae180d84 JL |
865 | |
866 | else if (GET_CODE (src) == HIGH) | |
867 | return "movhi hi(%1),%.,%0"; | |
868 | ||
869 | else if (GET_CODE (src) == LO_SUM) | |
870 | { | |
871 | operands[2] = XEXP (src, 0); | |
872 | operands[3] = XEXP (src, 1); | |
873 | return "movea lo(%3),%2,%0"; | |
874 | } | |
875 | } | |
876 | ||
877 | else if (GET_CODE (dst) == MEM) | |
878 | { | |
879 | if (REG_P (src)) | |
880 | return "%S0st%W0 %1,%0"; | |
881 | ||
882 | else if (GET_CODE (src) == CONST_INT && INTVAL (src) == 0) | |
883 | return "%S0st%W0 %.,%0"; | |
884 | ||
885 | else if (GET_CODE (src) == CONST_DOUBLE | |
886 | && CONST0_RTX (GET_MODE (dst)) == src) | |
887 | return "%S0st%W0 %.,%0"; | |
888 | } | |
889 | ||
f7df4a84 | 890 | fatal_insn ("output_move_single:", gen_rtx_SET (dst, src)); |
ae180d84 JL |
891 | return ""; |
892 | } | |
893 | ||
ef4bddc2 | 894 | machine_mode |
1ec0eb08 | 895 | v850_select_cc_mode (enum rtx_code cond, rtx op0, rtx op1) |
223a9d64 N |
896 | { |
897 | if (GET_MODE_CLASS (GET_MODE (op0)) == MODE_FLOAT) | |
898 | { | |
899 | switch (cond) | |
900 | { | |
901 | case LE: | |
902 | return CC_FPU_LEmode; | |
903 | case GE: | |
904 | return CC_FPU_GEmode; | |
905 | case LT: | |
906 | return CC_FPU_LTmode; | |
907 | case GT: | |
908 | return CC_FPU_GTmode; | |
909 | case EQ: | |
910 | return CC_FPU_EQmode; | |
911 | case NE: | |
912 | return CC_FPU_NEmode; | |
913 | default: | |
3cd232b5 | 914 | gcc_unreachable (); |
223a9d64 N |
915 | } |
916 | } | |
1ec0eb08 JL |
917 | |
918 | if (op1 == const0_rtx | |
919 | && (cond == EQ || cond == NE || cond == LT || cond == GE) | |
920 | && (GET_CODE (op0) == PLUS || GET_CODE (op0) == MINUS | |
921 | || GET_CODE (op0) == NEG || GET_CODE (op0) == AND | |
922 | || GET_CODE (op0) == IOR || GET_CODE (op0) == XOR | |
923 | || GET_CODE (op0) == NOT || GET_CODE (op0) == ASHIFT)) | |
924 | return CCNZmode; | |
925 | ||
223a9d64 N |
926 | return CCmode; |
927 | } | |
928 | ||
ef4bddc2 | 929 | machine_mode |
1ec0eb08 | 930 | v850_gen_float_compare (enum rtx_code cond, machine_mode mode, rtx op0, rtx op1) |
223a9d64 | 931 | { |
3cd232b5 | 932 | if (GET_MODE (op0) == DFmode) |
223a9d64 N |
933 | { |
934 | switch (cond) | |
935 | { | |
936 | case LE: | |
937 | emit_insn (gen_cmpdf_le_insn (op0, op1)); | |
938 | break; | |
939 | case GE: | |
940 | emit_insn (gen_cmpdf_ge_insn (op0, op1)); | |
941 | break; | |
942 | case LT: | |
943 | emit_insn (gen_cmpdf_lt_insn (op0, op1)); | |
944 | break; | |
945 | case GT: | |
946 | emit_insn (gen_cmpdf_gt_insn (op0, op1)); | |
947 | break; | |
3cd232b5 NDD |
948 | case NE: |
949 | /* Note: There is no NE comparison operator. So we | |
950 | perform an EQ comparison and invert the branch. | |
951 | See v850_float_nz_comparison for how this is done. */ | |
223a9d64 N |
952 | case EQ: |
953 | emit_insn (gen_cmpdf_eq_insn (op0, op1)); | |
954 | break; | |
223a9d64 | 955 | default: |
3cd232b5 | 956 | gcc_unreachable (); |
223a9d64 N |
957 | } |
958 | } | |
1ec0eb08 | 959 | else if (mode == SFmode) |
223a9d64 N |
960 | { |
961 | switch (cond) | |
962 | { | |
963 | case LE: | |
964 | emit_insn (gen_cmpsf_le_insn(op0, op1)); | |
965 | break; | |
966 | case GE: | |
967 | emit_insn (gen_cmpsf_ge_insn(op0, op1)); | |
968 | break; | |
969 | case LT: | |
970 | emit_insn (gen_cmpsf_lt_insn(op0, op1)); | |
971 | break; | |
972 | case GT: | |
973 | emit_insn (gen_cmpsf_gt_insn(op0, op1)); | |
974 | break; | |
3cd232b5 NDD |
975 | case NE: |
976 | /* Note: There is no NE comparison operator. So we | |
977 | perform an EQ comparison and invert the branch. | |
978 | See v850_float_nz_comparison for how this is done. */ | |
223a9d64 N |
979 | case EQ: |
980 | emit_insn (gen_cmpsf_eq_insn(op0, op1)); | |
981 | break; | |
223a9d64 | 982 | default: |
3cd232b5 | 983 | gcc_unreachable (); |
223a9d64 N |
984 | } |
985 | } | |
986 | else | |
3cd232b5 | 987 | gcc_unreachable (); |
223a9d64 N |
988 | |
989 | return v850_select_cc_mode (cond, op0, op1); | |
990 | } | |
991 | ||
1933ec7e JW |
992 | /* Return maximum offset supported for a short EP memory reference of mode |
993 | MODE and signedness UNSIGNEDP. */ | |
ae180d84 | 994 | |
3ce15347 | 995 | static int |
ef4bddc2 | 996 | ep_memory_offset (machine_mode mode, int unsignedp ATTRIBUTE_UNUSED) |
ae180d84 | 997 | { |
1933ec7e | 998 | int max_offset = 0; |
ae180d84 | 999 | |
1933ec7e | 1000 | switch (mode) |
ae180d84 | 1001 | { |
4e10a5a7 | 1002 | case E_QImode: |
b4378319 NC |
1003 | if (TARGET_SMALL_SLD) |
1004 | max_offset = (1 << 4); | |
dbdbd982 | 1005 | else if ((TARGET_V850E_UP) |
223a9d64 | 1006 | && unsignedp) |
b4378319 NC |
1007 | max_offset = (1 << 4); |
1008 | else | |
1009 | max_offset = (1 << 7); | |
ae180d84 JL |
1010 | break; |
1011 | ||
4e10a5a7 | 1012 | case E_HImode: |
b4378319 NC |
1013 | if (TARGET_SMALL_SLD) |
1014 | max_offset = (1 << 5); | |
dbdbd982 | 1015 | else if ((TARGET_V850E_UP) |
223a9d64 | 1016 | && unsignedp) |
b4378319 NC |
1017 | max_offset = (1 << 5); |
1018 | else | |
1019 | max_offset = (1 << 8); | |
ae180d84 JL |
1020 | break; |
1021 | ||
4e10a5a7 RS |
1022 | case E_SImode: |
1023 | case E_SFmode: | |
145870b5 | 1024 | max_offset = (1 << 8); |
ae180d84 | 1025 | break; |
3ce15347 NC |
1026 | |
1027 | default: | |
1028 | break; | |
ae180d84 JL |
1029 | } |
1030 | ||
1933ec7e JW |
1031 | return max_offset; |
1032 | } | |
1033 | ||
1034 | /* Return true if OP is a valid short EP memory reference */ | |
1035 | ||
1036 | int | |
ef4bddc2 | 1037 | ep_memory_operand (rtx op, machine_mode mode, int unsigned_load) |
1933ec7e JW |
1038 | { |
1039 | rtx addr, op0, op1; | |
1040 | int max_offset; | |
1041 | int mask; | |
1042 | ||
2ec6cd51 | 1043 | /* If we are not using the EP register on a per-function basis |
6fc0bb99 | 1044 | then do not allow this optimization at all. This is to |
2ec6cd51 NC |
1045 | prevent the use of the SLD/SST instructions which cannot be |
1046 | guaranteed to work properly due to a hardware bug. */ | |
1047 | if (!TARGET_EP) | |
1048 | return FALSE; | |
1049 | ||
1933ec7e JW |
1050 | if (GET_CODE (op) != MEM) |
1051 | return FALSE; | |
1052 | ||
1053 | max_offset = ep_memory_offset (mode, unsigned_load); | |
1054 | ||
1055 | mask = GET_MODE_SIZE (mode) - 1; | |
1056 | ||
ae180d84 JL |
1057 | addr = XEXP (op, 0); |
1058 | if (GET_CODE (addr) == CONST) | |
1059 | addr = XEXP (addr, 0); | |
1060 | ||
1061 | switch (GET_CODE (addr)) | |
1062 | { | |
1063 | default: | |
1064 | break; | |
1065 | ||
1066 | case SYMBOL_REF: | |
50d1ff6a | 1067 | return SYMBOL_REF_TDA_P (addr); |
ae180d84 JL |
1068 | |
1069 | case REG: | |
1070 | return REGNO (addr) == EP_REGNUM; | |
1071 | ||
1072 | case PLUS: | |
1073 | op0 = XEXP (addr, 0); | |
1074 | op1 = XEXP (addr, 1); | |
1075 | if (GET_CODE (op1) == CONST_INT | |
1076 | && INTVAL (op1) < max_offset | |
2268cc52 | 1077 | && INTVAL (op1) >= 0 |
ae180d84 JL |
1078 | && (INTVAL (op1) & mask) == 0) |
1079 | { | |
1080 | if (GET_CODE (op0) == REG && REGNO (op0) == EP_REGNUM) | |
1081 | return TRUE; | |
1082 | ||
50d1ff6a | 1083 | if (GET_CODE (op0) == SYMBOL_REF && SYMBOL_REF_TDA_P (op0)) |
ae180d84 JL |
1084 | return TRUE; |
1085 | } | |
1086 | break; | |
1087 | } | |
1088 | ||
1089 | return FALSE; | |
1090 | } | |
ae180d84 JL |
1091 | \f |
1092 | /* Substitute memory references involving a pointer, to use the ep pointer, | |
1093 | taking care to save and preserve the ep. */ | |
1094 | ||
1095 | static void | |
b32d5189 DM |
1096 | substitute_ep_register (rtx_insn *first_insn, |
1097 | rtx_insn *last_insn, | |
59f3507d NN |
1098 | int uses, |
1099 | int regno, | |
1100 | rtx * p_r1, | |
1101 | rtx * p_ep) | |
ae180d84 | 1102 | { |
c5c76735 | 1103 | rtx reg = gen_rtx_REG (Pmode, regno); |
b32d5189 | 1104 | rtx_insn *insn; |
ae180d84 JL |
1105 | |
1106 | if (!*p_r1) | |
1107 | { | |
90745823 | 1108 | df_set_regs_ever_live (1, true); |
c5c76735 JL |
1109 | *p_r1 = gen_rtx_REG (Pmode, 1); |
1110 | *p_ep = gen_rtx_REG (Pmode, 30); | |
ae180d84 JL |
1111 | } |
1112 | ||
1113 | if (TARGET_DEBUG) | |
3ce15347 NC |
1114 | fprintf (stderr, "\ |
1115 | Saved %d bytes (%d uses of register %s) in function %s, starting as insn %d, ending at %d\n", | |
ae180d84 JL |
1116 | 2 * (uses - 3), uses, reg_names[regno], |
1117 | IDENTIFIER_POINTER (DECL_NAME (current_function_decl)), | |
1118 | INSN_UID (first_insn), INSN_UID (last_insn)); | |
1119 | ||
b64925dc | 1120 | if (NOTE_P (first_insn)) |
ae180d84 JL |
1121 | first_insn = next_nonnote_insn (first_insn); |
1122 | ||
1123 | last_insn = next_nonnote_insn (last_insn); | |
1124 | for (insn = first_insn; insn && insn != last_insn; insn = NEXT_INSN (insn)) | |
1125 | { | |
b64925dc | 1126 | if (NONJUMP_INSN_P (insn)) |
ae180d84 JL |
1127 | { |
1128 | rtx pattern = single_set (insn); | |
1129 | ||
1130 | /* Replace the memory references. */ | |
1131 | if (pattern) | |
1132 | { | |
1133 | rtx *p_mem; | |
1933ec7e JW |
1134 | /* Memory operands are signed by default. */ |
1135 | int unsignedp = FALSE; | |
ae180d84 JL |
1136 | |
1137 | if (GET_CODE (SET_DEST (pattern)) == MEM | |
1138 | && GET_CODE (SET_SRC (pattern)) == MEM) | |
1139 | p_mem = (rtx *)0; | |
1140 | ||
1141 | else if (GET_CODE (SET_DEST (pattern)) == MEM) | |
1142 | p_mem = &SET_DEST (pattern); | |
1143 | ||
1144 | else if (GET_CODE (SET_SRC (pattern)) == MEM) | |
1145 | p_mem = &SET_SRC (pattern); | |
1146 | ||
b4378319 NC |
1147 | else if (GET_CODE (SET_SRC (pattern)) == SIGN_EXTEND |
1148 | && GET_CODE (XEXP (SET_SRC (pattern), 0)) == MEM) | |
1149 | p_mem = &XEXP (SET_SRC (pattern), 0); | |
1150 | ||
1151 | else if (GET_CODE (SET_SRC (pattern)) == ZERO_EXTEND | |
1152 | && GET_CODE (XEXP (SET_SRC (pattern), 0)) == MEM) | |
1153 | { | |
1154 | p_mem = &XEXP (SET_SRC (pattern), 0); | |
1155 | unsignedp = TRUE; | |
1156 | } | |
ae180d84 JL |
1157 | else |
1158 | p_mem = (rtx *)0; | |
1159 | ||
1160 | if (p_mem) | |
1161 | { | |
1162 | rtx addr = XEXP (*p_mem, 0); | |
1163 | ||
c3edd394 | 1164 | if (GET_CODE (addr) == REG && REGNO (addr) == (unsigned) regno) |
ae180d84 JL |
1165 | *p_mem = change_address (*p_mem, VOIDmode, *p_ep); |
1166 | ||
1167 | else if (GET_CODE (addr) == PLUS | |
1168 | && GET_CODE (XEXP (addr, 0)) == REG | |
c3edd394 | 1169 | && REGNO (XEXP (addr, 0)) == (unsigned) regno |
ae180d84 | 1170 | && GET_CODE (XEXP (addr, 1)) == CONST_INT |
3ce15347 | 1171 | && ((INTVAL (XEXP (addr, 1))) |
1933ec7e | 1172 | < ep_memory_offset (GET_MODE (*p_mem), |
2268cc52 JL |
1173 | unsignedp)) |
1174 | && ((INTVAL (XEXP (addr, 1))) >= 0)) | |
ae180d84 | 1175 | *p_mem = change_address (*p_mem, VOIDmode, |
c5c76735 JL |
1176 | gen_rtx_PLUS (Pmode, |
1177 | *p_ep, | |
1178 | XEXP (addr, 1))); | |
ae180d84 JL |
1179 | } |
1180 | } | |
1181 | } | |
1182 | } | |
1183 | ||
1184 | /* Optimize back to back cases of ep <- r1 & r1 <- ep. */ | |
1185 | insn = prev_nonnote_insn (first_insn); | |
b64925dc | 1186 | if (insn && NONJUMP_INSN_P (insn) |
ae180d84 JL |
1187 | && GET_CODE (PATTERN (insn)) == SET |
1188 | && SET_DEST (PATTERN (insn)) == *p_ep | |
1189 | && SET_SRC (PATTERN (insn)) == *p_r1) | |
1190 | delete_insn (insn); | |
1191 | else | |
f7df4a84 | 1192 | emit_insn_before (gen_rtx_SET (*p_r1, *p_ep), first_insn); |
ae180d84 | 1193 | |
f7df4a84 RS |
1194 | emit_insn_before (gen_rtx_SET (*p_ep, reg), first_insn); |
1195 | emit_insn_before (gen_rtx_SET (*p_ep, *p_r1), last_insn); | |
ae180d84 JL |
1196 | } |
1197 | ||
1198 | \f | |
18dbd950 RS |
1199 | /* TARGET_MACHINE_DEPENDENT_REORG. On the 850, we use it to implement |
1200 | the -mep mode to copy heavily used pointers to ep to use the implicit | |
1201 | addressing. */ | |
ae180d84 | 1202 | |
18dbd950 | 1203 | static void |
59f3507d | 1204 | v850_reorg (void) |
ae180d84 | 1205 | { |
3ce15347 NC |
1206 | struct |
1207 | { | |
ae180d84 | 1208 | int uses; |
b32d5189 DM |
1209 | rtx_insn *first_insn; |
1210 | rtx_insn *last_insn; | |
3ce15347 NC |
1211 | } |
1212 | regs[FIRST_PSEUDO_REGISTER]; | |
ae180d84 JL |
1213 | |
1214 | int i; | |
1215 | int use_ep = FALSE; | |
1216 | rtx r1 = NULL_RTX; | |
1217 | rtx ep = NULL_RTX; | |
b32d5189 | 1218 | rtx_insn *insn; |
ae180d84 JL |
1219 | rtx pattern; |
1220 | ||
61db4608 | 1221 | /* If not ep mode, just return now. */ |
ae180d84 JL |
1222 | if (!TARGET_EP) |
1223 | return; | |
1224 | ||
1225 | for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) | |
1226 | { | |
1227 | regs[i].uses = 0; | |
b32d5189 DM |
1228 | regs[i].first_insn = NULL; |
1229 | regs[i].last_insn = NULL; | |
ae180d84 JL |
1230 | } |
1231 | ||
18dbd950 | 1232 | for (insn = get_insns (); insn != NULL_RTX; insn = NEXT_INSN (insn)) |
ae180d84 JL |
1233 | { |
1234 | switch (GET_CODE (insn)) | |
1235 | { | |
1236 | /* End of basic block */ | |
1237 | default: | |
1238 | if (!use_ep) | |
1239 | { | |
1240 | int max_uses = -1; | |
1241 | int max_regno = -1; | |
1242 | ||
1243 | for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) | |
1244 | { | |
1245 | if (max_uses < regs[i].uses) | |
1246 | { | |
1247 | max_uses = regs[i].uses; | |
1248 | max_regno = i; | |
1249 | } | |
1250 | } | |
1251 | ||
1252 | if (max_uses > 3) | |
1253 | substitute_ep_register (regs[max_regno].first_insn, | |
1254 | regs[max_regno].last_insn, | |
1255 | max_uses, max_regno, &r1, &ep); | |
1256 | } | |
1257 | ||
1258 | use_ep = FALSE; | |
1259 | for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) | |
1260 | { | |
1261 | regs[i].uses = 0; | |
b32d5189 DM |
1262 | regs[i].first_insn = NULL; |
1263 | regs[i].last_insn = NULL; | |
ae180d84 JL |
1264 | } |
1265 | break; | |
1266 | ||
1267 | case NOTE: | |
1268 | break; | |
1269 | ||
1270 | case INSN: | |
1271 | pattern = single_set (insn); | |
1272 | ||
b84d824d | 1273 | /* See if there are any memory references we can shorten. */ |
ae180d84 JL |
1274 | if (pattern) |
1275 | { | |
1276 | rtx src = SET_SRC (pattern); | |
1277 | rtx dest = SET_DEST (pattern); | |
1278 | rtx mem; | |
1933ec7e JW |
1279 | /* Memory operands are signed by default. */ |
1280 | int unsignedp = FALSE; | |
ae180d84 | 1281 | |
9324411a | 1282 | /* We might have (SUBREG (MEM)) here, so just get rid of the |
68882f0f JJ |
1283 | subregs to make this code simpler. */ |
1284 | if (GET_CODE (dest) == SUBREG | |
1285 | && (GET_CODE (SUBREG_REG (dest)) == MEM | |
1286 | || GET_CODE (SUBREG_REG (dest)) == REG)) | |
b84d824d | 1287 | alter_subreg (&dest, false); |
68882f0f JJ |
1288 | if (GET_CODE (src) == SUBREG |
1289 | && (GET_CODE (SUBREG_REG (src)) == MEM | |
1290 | || GET_CODE (SUBREG_REG (src)) == REG)) | |
b84d824d | 1291 | alter_subreg (&src, false); |
9324411a | 1292 | |
ae180d84 JL |
1293 | if (GET_CODE (dest) == MEM && GET_CODE (src) == MEM) |
1294 | mem = NULL_RTX; | |
1295 | ||
1296 | else if (GET_CODE (dest) == MEM) | |
1297 | mem = dest; | |
1298 | ||
1299 | else if (GET_CODE (src) == MEM) | |
1300 | mem = src; | |
1301 | ||
b4378319 NC |
1302 | else if (GET_CODE (src) == SIGN_EXTEND |
1303 | && GET_CODE (XEXP (src, 0)) == MEM) | |
1304 | mem = XEXP (src, 0); | |
1305 | ||
1306 | else if (GET_CODE (src) == ZERO_EXTEND | |
1307 | && GET_CODE (XEXP (src, 0)) == MEM) | |
1308 | { | |
1309 | mem = XEXP (src, 0); | |
1310 | unsignedp = TRUE; | |
1311 | } | |
ae180d84 JL |
1312 | else |
1313 | mem = NULL_RTX; | |
1314 | ||
1933ec7e | 1315 | if (mem && ep_memory_operand (mem, GET_MODE (mem), unsignedp)) |
ae180d84 JL |
1316 | use_ep = TRUE; |
1317 | ||
1318 | else if (!use_ep && mem | |
1319 | && GET_MODE_SIZE (GET_MODE (mem)) <= UNITS_PER_WORD) | |
1320 | { | |
1321 | rtx addr = XEXP (mem, 0); | |
1322 | int regno = -1; | |
1323 | int short_p; | |
1324 | ||
1325 | if (GET_CODE (addr) == REG) | |
1326 | { | |
1327 | short_p = TRUE; | |
1328 | regno = REGNO (addr); | |
1329 | } | |
1330 | ||
1331 | else if (GET_CODE (addr) == PLUS | |
1332 | && GET_CODE (XEXP (addr, 0)) == REG | |
1333 | && GET_CODE (XEXP (addr, 1)) == CONST_INT | |
3ce15347 | 1334 | && ((INTVAL (XEXP (addr, 1))) |
2268cc52 JL |
1335 | < ep_memory_offset (GET_MODE (mem), unsignedp)) |
1336 | && ((INTVAL (XEXP (addr, 1))) >= 0)) | |
ae180d84 JL |
1337 | { |
1338 | short_p = TRUE; | |
1339 | regno = REGNO (XEXP (addr, 0)); | |
1340 | } | |
1341 | ||
1342 | else | |
1343 | short_p = FALSE; | |
1344 | ||
1345 | if (short_p) | |
1346 | { | |
1347 | regs[regno].uses++; | |
1348 | regs[regno].last_insn = insn; | |
1349 | if (!regs[regno].first_insn) | |
1350 | regs[regno].first_insn = insn; | |
1351 | } | |
1352 | } | |
1353 | ||
1354 | /* Loading up a register in the basic block zaps any savings | |
1355 | for the register */ | |
9324411a | 1356 | if (GET_CODE (dest) == REG) |
ae180d84 | 1357 | { |
ae180d84 JL |
1358 | int regno; |
1359 | int endregno; | |
1360 | ||
9324411a | 1361 | regno = REGNO (dest); |
036620db | 1362 | endregno = END_REGNO (dest); |
ae180d84 JL |
1363 | |
1364 | if (!use_ep) | |
1365 | { | |
1366 | /* See if we can use the pointer before this | |
1367 | modification. */ | |
1368 | int max_uses = -1; | |
1369 | int max_regno = -1; | |
1370 | ||
1371 | for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) | |
1372 | { | |
1373 | if (max_uses < regs[i].uses) | |
1374 | { | |
1375 | max_uses = regs[i].uses; | |
1376 | max_regno = i; | |
1377 | } | |
1378 | } | |
1379 | ||
1380 | if (max_uses > 3 | |
1381 | && max_regno >= regno | |
1382 | && max_regno < endregno) | |
1383 | { | |
1384 | substitute_ep_register (regs[max_regno].first_insn, | |
1385 | regs[max_regno].last_insn, | |
3ce15347 NC |
1386 | max_uses, max_regno, &r1, |
1387 | &ep); | |
ae180d84 JL |
1388 | |
1389 | /* Since we made a substitution, zap all remembered | |
1390 | registers. */ | |
1391 | for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) | |
1392 | { | |
1393 | regs[i].uses = 0; | |
b32d5189 DM |
1394 | regs[i].first_insn = NULL; |
1395 | regs[i].last_insn = NULL; | |
ae180d84 JL |
1396 | } |
1397 | } | |
1398 | } | |
1399 | ||
1400 | for (i = regno; i < endregno; i++) | |
1401 | { | |
1402 | regs[i].uses = 0; | |
b32d5189 DM |
1403 | regs[i].first_insn = NULL; |
1404 | regs[i].last_insn = NULL; | |
ae180d84 JL |
1405 | } |
1406 | } | |
1407 | } | |
1408 | } | |
1409 | } | |
1410 | } | |
1411 | ||
ae180d84 | 1412 | /* # of registers saved by the interrupt handler. */ |
223a9d64 | 1413 | #define INTERRUPT_FIXED_NUM 5 |
ae180d84 JL |
1414 | |
1415 | /* # of bytes for registers saved by the interrupt handler. */ | |
1416 | #define INTERRUPT_FIXED_SAVE_SIZE (4 * INTERRUPT_FIXED_NUM) | |
1417 | ||
ae180d84 JL |
1418 | /* # of words saved for other registers. */ |
1419 | #define INTERRUPT_ALL_SAVE_NUM \ | |
223a9d64 | 1420 | (30 - INTERRUPT_FIXED_NUM) |
ae180d84 JL |
1421 | |
1422 | #define INTERRUPT_ALL_SAVE_SIZE (4 * INTERRUPT_ALL_SAVE_NUM) | |
1423 | ||
1424 | int | |
59f3507d | 1425 | compute_register_save_size (long * p_reg_saved) |
ae180d84 JL |
1426 | { |
1427 | int size = 0; | |
1428 | int i; | |
1429 | int interrupt_handler = v850_interrupt_function_p (current_function_decl); | |
6fb5fa3c | 1430 | int call_p = df_regs_ever_live_p (LINK_POINTER_REGNUM); |
ae180d84 JL |
1431 | long reg_saved = 0; |
1432 | ||
ae180d84 JL |
1433 | /* Count space for the register saves. */ |
1434 | if (interrupt_handler) | |
1435 | { | |
1436 | for (i = 0; i <= 31; i++) | |
1437 | switch (i) | |
1438 | { | |
1439 | default: | |
6fb5fa3c | 1440 | if (df_regs_ever_live_p (i) || call_p) |
ae180d84 JL |
1441 | { |
1442 | size += 4; | |
1443 | reg_saved |= 1L << i; | |
1444 | } | |
1445 | break; | |
1446 | ||
1447 | /* We don't save/restore r0 or the stack pointer */ | |
1448 | case 0: | |
1449 | case STACK_POINTER_REGNUM: | |
1450 | break; | |
1451 | ||
1452 | /* For registers with fixed use, we save them, set them to the | |
1453 | appropriate value, and then restore them. | |
1454 | These registers are handled specially, so don't list them | |
1455 | on the list of registers to save in the prologue. */ | |
1456 | case 1: /* temp used to hold ep */ | |
b24bcfb3 | 1457 | case 4: /* gp */ |
ae180d84 | 1458 | case 10: /* temp used to call interrupt save/restore */ |
223a9d64 | 1459 | case 11: /* temp used to call interrupt save/restore (long call) */ |
ae180d84 JL |
1460 | case EP_REGNUM: /* ep */ |
1461 | size += 4; | |
1462 | break; | |
1463 | } | |
1464 | } | |
ae180d84 | 1465 | else |
29a65e3d NC |
1466 | { |
1467 | /* Find the first register that needs to be saved. */ | |
1468 | for (i = 0; i <= 31; i++) | |
6fb5fa3c | 1469 | if (df_regs_ever_live_p (i) && ((! call_used_regs[i]) |
29a65e3d NC |
1470 | || i == LINK_POINTER_REGNUM)) |
1471 | break; | |
1472 | ||
1473 | /* If it is possible that an out-of-line helper function might be | |
1474 | used to generate the prologue for the current function, then we | |
1475 | need to cover the possibility that such a helper function will | |
1476 | be used, despite the fact that there might be gaps in the list of | |
1477 | registers that need to be saved. To detect this we note that the | |
a17a104c CM |
1478 | helper functions always push at least register r29 (provided |
1479 | that the function is not an interrupt handler). */ | |
29a65e3d NC |
1480 | |
1481 | if (TARGET_PROLOG_FUNCTION | |
a17a104c | 1482 | && (i == 2 || ((i >= 20) && (i < 30)))) |
ae180d84 | 1483 | { |
29a65e3d NC |
1484 | if (i == 2) |
1485 | { | |
1486 | size += 4; | |
1487 | reg_saved |= 1L << i; | |
1488 | ||
1489 | i = 20; | |
1490 | } | |
ae180d84 | 1491 | |
29a65e3d NC |
1492 | /* Helper functions save all registers between the starting |
1493 | register and the last register, regardless of whether they | |
1494 | are actually used by the function or not. */ | |
1495 | for (; i <= 29; i++) | |
1496 | { | |
1497 | size += 4; | |
1498 | reg_saved |= 1L << i; | |
1499 | } | |
1500 | ||
6fb5fa3c | 1501 | if (df_regs_ever_live_p (LINK_POINTER_REGNUM)) |
29a65e3d NC |
1502 | { |
1503 | size += 4; | |
1504 | reg_saved |= 1L << LINK_POINTER_REGNUM; | |
1505 | } | |
1506 | } | |
1507 | else | |
1508 | { | |
1509 | for (; i <= 31; i++) | |
6fb5fa3c | 1510 | if (df_regs_ever_live_p (i) && ((! call_used_regs[i]) |
29a65e3d NC |
1511 | || i == LINK_POINTER_REGNUM)) |
1512 | { | |
1513 | size += 4; | |
1514 | reg_saved |= 1L << i; | |
1515 | } | |
1516 | } | |
1517 | } | |
1518 | ||
ae180d84 JL |
1519 | if (p_reg_saved) |
1520 | *p_reg_saved = reg_saved; | |
1521 | ||
1522 | return size; | |
1523 | } | |
1524 | ||
b84d824d NC |
1525 | /* Typical stack layout should looks like this after the function's prologue: |
1526 | ||
1527 | | | | |
1528 | -- ^ | |
1529 | | | \ | | |
1530 | | | arguments saved | Increasing | |
1531 | | | on the stack | addresses | |
1532 | PARENT arg pointer -> | | / | |
1533 | -------------------------- ---- ------------------- | |
1534 | | | - space for argument split between regs & stack | |
1535 | -- | |
1536 | CHILD | | \ <-- (return address here) | |
1537 | | | other call | |
1538 | | | saved registers | |
1539 | | | / | |
1540 | -- | |
1541 | frame pointer -> | | \ ___ | |
1542 | | | local | | |
1543 | | | variables |f | |
1544 | | | / |r | |
1545 | -- |a | |
1546 | | | \ |m | |
1547 | | | outgoing |e | |
1548 | | | arguments | | Decreasing | |
1549 | (hard) frame pointer | | / | | addresses | |
1550 | and stack pointer -> | | / _|_ | | |
1551 | -------------------------- ---- ------------------ V */ | |
1552 | ||
ae180d84 | 1553 | int |
f075bd95 | 1554 | compute_frame_size (poly_int64 size, long * p_reg_saved) |
ae180d84 | 1555 | { |
ae180d84 JL |
1556 | return (size |
1557 | + compute_register_save_size (p_reg_saved) | |
38173d38 | 1558 | + crtl->outgoing_args_size); |
ae180d84 JL |
1559 | } |
1560 | ||
223a9d64 N |
1561 | static int |
1562 | use_prolog_function (int num_save, int frame_size) | |
1563 | { | |
1564 | int alloc_stack = (4 * num_save); | |
1565 | int unalloc_stack = frame_size - alloc_stack; | |
1566 | int save_func_len, restore_func_len; | |
1567 | int save_normal_len, restore_normal_len; | |
1568 | ||
1569 | if (! TARGET_DISABLE_CALLT) | |
1570 | save_func_len = restore_func_len = 2; | |
1571 | else | |
1572 | save_func_len = restore_func_len = TARGET_LONG_CALLS ? (4+4+4+2+2) : 4; | |
1573 | ||
1574 | if (unalloc_stack) | |
1575 | { | |
1576 | save_func_len += CONST_OK_FOR_J (-unalloc_stack) ? 2 : 4; | |
1577 | restore_func_len += CONST_OK_FOR_J (-unalloc_stack) ? 2 : 4; | |
1578 | } | |
1579 | ||
1580 | /* See if we would have used ep to save the stack. */ | |
1581 | if (TARGET_EP && num_save > 3 && (unsigned)frame_size < 255) | |
1582 | save_normal_len = restore_normal_len = (3 * 2) + (2 * num_save); | |
1583 | else | |
1584 | save_normal_len = restore_normal_len = 4 * num_save; | |
1585 | ||
1586 | save_normal_len += CONST_OK_FOR_J (-frame_size) ? 2 : 4; | |
1587 | restore_normal_len += (CONST_OK_FOR_J (frame_size) ? 2 : 4) + 2; | |
1588 | ||
1589 | /* Don't bother checking if we don't actually save any space. | |
1590 | This happens for instance if one register is saved and additional | |
1591 | stack space is allocated. */ | |
1592 | return ((save_func_len + restore_func_len) < (save_normal_len + restore_normal_len)); | |
1593 | } | |
1594 | ||
b12b5029 | 1595 | static void |
b84d824d | 1596 | increment_stack (signed int amount, bool in_prologue) |
b12b5029 NC |
1597 | { |
1598 | rtx inc; | |
1599 | ||
1600 | if (amount == 0) | |
1601 | return; | |
1602 | ||
1603 | inc = GEN_INT (amount); | |
1604 | ||
1605 | if (! CONST_OK_FOR_K (amount)) | |
1606 | { | |
1607 | rtx reg = gen_rtx_REG (Pmode, 12); | |
1608 | ||
b84d824d NC |
1609 | inc = emit_move_insn (reg, inc); |
1610 | if (in_prologue) | |
1611 | F (inc); | |
b12b5029 NC |
1612 | inc = reg; |
1613 | } | |
1614 | ||
1ec0eb08 | 1615 | inc = emit_insn (gen_addsi3_clobber_flags (stack_pointer_rtx, stack_pointer_rtx, inc)); |
b84d824d NC |
1616 | if (in_prologue) |
1617 | F (inc); | |
b12b5029 NC |
1618 | } |
1619 | ||
ae180d84 | 1620 | void |
59f3507d | 1621 | expand_prologue (void) |
ae180d84 JL |
1622 | { |
1623 | unsigned int i; | |
ae180d84 JL |
1624 | unsigned int size = get_frame_size (); |
1625 | unsigned int actual_fsize; | |
1626 | unsigned int init_stack_alloc = 0; | |
1627 | rtx save_regs[32]; | |
1628 | rtx save_all; | |
3ce15347 | 1629 | unsigned int num_save; |
ae180d84 JL |
1630 | int code; |
1631 | int interrupt_handler = v850_interrupt_function_p (current_function_decl); | |
1632 | long reg_saved = 0; | |
1633 | ||
1634 | actual_fsize = compute_frame_size (size, ®_saved); | |
1635 | ||
b12b5029 NC |
1636 | if (flag_stack_usage_info) |
1637 | current_function_static_stack_size = actual_fsize; | |
1638 | ||
0e668396 | 1639 | /* Save/setup global registers for interrupt functions right now. */ |
ae180d84 JL |
1640 | if (interrupt_handler) |
1641 | { | |
dbdbd982 | 1642 | if (! TARGET_DISABLE_CALLT && (TARGET_V850E_UP)) |
b4378319 NC |
1643 | emit_insn (gen_callt_save_interrupt ()); |
1644 | else | |
674fdc14 | 1645 | emit_insn (gen_save_interrupt ()); |
b4378319 | 1646 | |
ae180d84 | 1647 | actual_fsize -= INTERRUPT_FIXED_SAVE_SIZE; |
29a65e3d NC |
1648 | |
1649 | if (((1L << LINK_POINTER_REGNUM) & reg_saved) != 0) | |
ae180d84 | 1650 | actual_fsize -= INTERRUPT_ALL_SAVE_SIZE; |
b84d824d NC |
1651 | |
1652 | /* Interrupt functions are not passed arguments, so no need to | |
1653 | allocate space for split structure arguments. */ | |
1654 | gcc_assert (crtl->args.pretend_args_size == 0); | |
ae180d84 JL |
1655 | } |
1656 | ||
0e668396 | 1657 | /* Identify all of the saved registers. */ |
ae180d84 | 1658 | num_save = 0; |
223a9d64 | 1659 | for (i = 1; i < 32; i++) |
ae180d84 JL |
1660 | { |
1661 | if (((1L << i) & reg_saved) != 0) | |
c5c76735 | 1662 | save_regs[num_save++] = gen_rtx_REG (Pmode, i); |
ae180d84 JL |
1663 | } |
1664 | ||
b84d824d NC |
1665 | if (crtl->args.pretend_args_size) |
1666 | { | |
1667 | if (num_save == 0) | |
1668 | { | |
1669 | increment_stack (- (actual_fsize + crtl->args.pretend_args_size), true); | |
1670 | actual_fsize = 0; | |
1671 | } | |
1672 | else | |
1673 | increment_stack (- crtl->args.pretend_args_size, true); | |
1674 | } | |
1675 | ||
ae180d84 | 1676 | /* See if we have an insn that allocates stack space and saves the particular |
b84d824d NC |
1677 | registers we want to. Note that the helpers won't |
1678 | allocate additional space for registers GCC saves to complete a | |
1679 | "split" structure argument. */ | |
ae180d84 | 1680 | save_all = NULL_RTX; |
b84d824d NC |
1681 | if (TARGET_PROLOG_FUNCTION |
1682 | && !crtl->args.pretend_args_size | |
1683 | && num_save > 0) | |
ae180d84 | 1684 | { |
223a9d64 | 1685 | if (use_prolog_function (num_save, actual_fsize)) |
ae180d84 | 1686 | { |
223a9d64 N |
1687 | int alloc_stack = 4 * num_save; |
1688 | int offset = 0; | |
1689 | ||
c5c76735 JL |
1690 | save_all = gen_rtx_PARALLEL |
1691 | (VOIDmode, | |
1ec0eb08 | 1692 | rtvec_alloc (num_save + 2 |
223a9d64 | 1693 | + (TARGET_DISABLE_CALLT ? (TARGET_LONG_CALLS ? 2 : 1) : 0))); |
c5c76735 JL |
1694 | |
1695 | XVECEXP (save_all, 0, 0) | |
f7df4a84 | 1696 | = gen_rtx_SET (stack_pointer_rtx, |
223a9d64 N |
1697 | gen_rtx_PLUS (Pmode, |
1698 | stack_pointer_rtx, | |
1699 | GEN_INT(-alloc_stack))); | |
ae180d84 JL |
1700 | for (i = 0; i < num_save; i++) |
1701 | { | |
223a9d64 | 1702 | offset -= 4; |
c5c76735 | 1703 | XVECEXP (save_all, 0, i+1) |
f7df4a84 | 1704 | = gen_rtx_SET (gen_rtx_MEM (Pmode, |
223a9d64 N |
1705 | gen_rtx_PLUS (Pmode, |
1706 | stack_pointer_rtx, | |
1707 | GEN_INT(offset))), | |
c5c76735 | 1708 | save_regs[i]); |
ae180d84 JL |
1709 | } |
1710 | ||
1ec0eb08 JL |
1711 | XVECEXP (save_all, 0, num_save + 1) |
1712 | = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (Pmode, CC_REGNUM)); | |
1713 | ||
223a9d64 | 1714 | if (TARGET_DISABLE_CALLT) |
fdf3bb57 | 1715 | { |
1ec0eb08 | 1716 | XVECEXP (save_all, 0, num_save + 2) |
fdf3bb57 NC |
1717 | = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (Pmode, 10)); |
1718 | ||
1719 | if (TARGET_LONG_CALLS) | |
1ec0eb08 | 1720 | XVECEXP (save_all, 0, num_save + 3) |
fdf3bb57 NC |
1721 | = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (Pmode, 11)); |
1722 | } | |
1723 | ||
b84d824d NC |
1724 | v850_all_frame_related (save_all); |
1725 | ||
800dcd86 | 1726 | code = recog (save_all, NULL, NULL); |
ae180d84 JL |
1727 | if (code >= 0) |
1728 | { | |
1729 | rtx insn = emit_insn (save_all); | |
1730 | INSN_CODE (insn) = code; | |
1731 | actual_fsize -= alloc_stack; | |
29a65e3d | 1732 | |
ae180d84 JL |
1733 | } |
1734 | else | |
1735 | save_all = NULL_RTX; | |
1736 | } | |
1737 | } | |
1738 | ||
3ce15347 | 1739 | /* If no prolog save function is available, store the registers the old |
d4de0221 | 1740 | fashioned way (one by one). */ |
ae180d84 JL |
1741 | if (!save_all) |
1742 | { | |
1743 | /* Special case interrupt functions that save all registers for a call. */ | |
29a65e3d NC |
1744 | if (interrupt_handler && ((1L << LINK_POINTER_REGNUM) & reg_saved) != 0) |
1745 | { | |
dbdbd982 | 1746 | if (! TARGET_DISABLE_CALLT && (TARGET_V850E_UP)) |
b4378319 NC |
1747 | emit_insn (gen_callt_save_all_interrupt ()); |
1748 | else | |
1749 | emit_insn (gen_save_all_interrupt ()); | |
29a65e3d | 1750 | } |
ae180d84 JL |
1751 | else |
1752 | { | |
223a9d64 | 1753 | int offset; |
ae180d84 JL |
1754 | /* If the stack is too big, allocate it in chunks so we can do the |
1755 | register saves. We use the register save size so we use the ep | |
1756 | register. */ | |
1757 | if (actual_fsize && !CONST_OK_FOR_K (-actual_fsize)) | |
1758 | init_stack_alloc = compute_register_save_size (NULL); | |
1759 | else | |
1760 | init_stack_alloc = actual_fsize; | |
145870b5 | 1761 | |
d4de0221 | 1762 | /* Save registers at the beginning of the stack frame. */ |
ae180d84 | 1763 | offset = init_stack_alloc - 4; |
145870b5 | 1764 | |
ae180d84 | 1765 | if (init_stack_alloc) |
b84d824d | 1766 | increment_stack (- (signed) init_stack_alloc, true); |
145870b5 | 1767 | |
ae180d84 | 1768 | /* Save the return pointer first. */ |
29a65e3d | 1769 | if (num_save > 0 && REGNO (save_regs[num_save-1]) == LINK_POINTER_REGNUM) |
ae180d84 | 1770 | { |
b84d824d NC |
1771 | F (emit_move_insn (gen_rtx_MEM (SImode, |
1772 | plus_constant (Pmode, | |
1773 | stack_pointer_rtx, | |
1774 | offset)), | |
1775 | save_regs[--num_save])); | |
ae180d84 JL |
1776 | offset -= 4; |
1777 | } | |
145870b5 | 1778 | |
ae180d84 JL |
1779 | for (i = 0; i < num_save; i++) |
1780 | { | |
b84d824d NC |
1781 | F (emit_move_insn (gen_rtx_MEM (SImode, |
1782 | plus_constant (Pmode, | |
1783 | stack_pointer_rtx, | |
1784 | offset)), | |
1785 | save_regs[i])); | |
ae180d84 JL |
1786 | offset -= 4; |
1787 | } | |
1788 | } | |
1789 | } | |
1790 | ||
1791 | /* Allocate the rest of the stack that was not allocated above (either it is | |
1792 | > 32K or we just called a function to save the registers and needed more | |
1793 | stack. */ | |
1794 | if (actual_fsize > init_stack_alloc) | |
b84d824d | 1795 | increment_stack (init_stack_alloc - actual_fsize, true); |
ae180d84 JL |
1796 | |
1797 | /* If we need a frame pointer, set it up now. */ | |
1798 | if (frame_pointer_needed) | |
b84d824d | 1799 | F (emit_move_insn (hard_frame_pointer_rtx, stack_pointer_rtx)); |
ae180d84 JL |
1800 | } |
1801 | \f | |
1802 | ||
1803 | void | |
59f3507d | 1804 | expand_epilogue (void) |
ae180d84 JL |
1805 | { |
1806 | unsigned int i; | |
ae180d84 JL |
1807 | unsigned int size = get_frame_size (); |
1808 | long reg_saved = 0; | |
fda41d93 | 1809 | int actual_fsize = compute_frame_size (size, ®_saved); |
ae180d84 JL |
1810 | rtx restore_regs[32]; |
1811 | rtx restore_all; | |
3ce15347 | 1812 | unsigned int num_restore; |
ae180d84 JL |
1813 | int code; |
1814 | int interrupt_handler = v850_interrupt_function_p (current_function_decl); | |
1815 | ||
1816 | /* Eliminate the initial stack stored by interrupt functions. */ | |
1817 | if (interrupt_handler) | |
1818 | { | |
1819 | actual_fsize -= INTERRUPT_FIXED_SAVE_SIZE; | |
29a65e3d | 1820 | if (((1L << LINK_POINTER_REGNUM) & reg_saved) != 0) |
ae180d84 JL |
1821 | actual_fsize -= INTERRUPT_ALL_SAVE_SIZE; |
1822 | } | |
1823 | ||
1824 | /* Cut off any dynamic stack created. */ | |
1825 | if (frame_pointer_needed) | |
1826 | emit_move_insn (stack_pointer_rtx, hard_frame_pointer_rtx); | |
1827 | ||
0e668396 | 1828 | /* Identify all of the saved registers. */ |
ae180d84 | 1829 | num_restore = 0; |
223a9d64 | 1830 | for (i = 1; i < 32; i++) |
ae180d84 JL |
1831 | { |
1832 | if (((1L << i) & reg_saved) != 0) | |
c5c76735 | 1833 | restore_regs[num_restore++] = gen_rtx_REG (Pmode, i); |
ae180d84 JL |
1834 | } |
1835 | ||
ae180d84 JL |
1836 | /* See if we have an insn that restores the particular registers we |
1837 | want to. */ | |
1838 | restore_all = NULL_RTX; | |
223a9d64 | 1839 | |
0e668396 NC |
1840 | if (TARGET_PROLOG_FUNCTION |
1841 | && num_restore > 0 | |
b84d824d | 1842 | && !crtl->args.pretend_args_size |
ae180d84 JL |
1843 | && !interrupt_handler) |
1844 | { | |
223a9d64 | 1845 | int alloc_stack = (4 * num_restore); |
ae180d84 | 1846 | |
ae180d84 | 1847 | /* Don't bother checking if we don't actually save any space. */ |
223a9d64 | 1848 | if (use_prolog_function (num_restore, actual_fsize)) |
ae180d84 | 1849 | { |
223a9d64 | 1850 | int offset; |
c5c76735 JL |
1851 | restore_all = gen_rtx_PARALLEL (VOIDmode, |
1852 | rtvec_alloc (num_restore + 2)); | |
3810076b | 1853 | XVECEXP (restore_all, 0, 0) = ret_rtx; |
ae180d84 | 1854 | XVECEXP (restore_all, 0, 1) |
f7df4a84 RS |
1855 | = gen_rtx_SET (stack_pointer_rtx, |
1856 | gen_rtx_PLUS (Pmode, | |
1857 | stack_pointer_rtx, | |
1858 | GEN_INT (alloc_stack))); | |
ae180d84 JL |
1859 | |
1860 | offset = alloc_stack - 4; | |
1861 | for (i = 0; i < num_restore; i++) | |
1862 | { | |
1863 | XVECEXP (restore_all, 0, i+2) | |
f7df4a84 | 1864 | = gen_rtx_SET (restore_regs[i], |
c5c76735 | 1865 | gen_rtx_MEM (Pmode, |
223a9d64 N |
1866 | gen_rtx_PLUS (Pmode, |
1867 | stack_pointer_rtx, | |
1868 | GEN_INT(offset)))); | |
ae180d84 JL |
1869 | offset -= 4; |
1870 | } | |
1871 | ||
800dcd86 | 1872 | code = recog (restore_all, NULL, NULL); |
0e668396 | 1873 | |
ae180d84 JL |
1874 | if (code >= 0) |
1875 | { | |
1876 | rtx insn; | |
1877 | ||
1878 | actual_fsize -= alloc_stack; | |
b84d824d | 1879 | increment_stack (actual_fsize, false); |
ae180d84 JL |
1880 | |
1881 | insn = emit_jump_insn (restore_all); | |
1882 | INSN_CODE (insn) = code; | |
ae180d84 JL |
1883 | } |
1884 | else | |
1885 | restore_all = NULL_RTX; | |
1886 | } | |
1887 | } | |
1888 | ||
22f23985 | 1889 | /* If no epilogue save function is available, restore the registers the |
0e668396 | 1890 | old fashioned way (one by one). */ |
ae180d84 JL |
1891 | if (!restore_all) |
1892 | { | |
223a9d64 N |
1893 | unsigned int init_stack_free; |
1894 | ||
ae180d84 | 1895 | /* If the stack is large, we need to cut it down in 2 pieces. */ |
223a9d64 N |
1896 | if (interrupt_handler) |
1897 | init_stack_free = 0; | |
1898 | else if (actual_fsize && !CONST_OK_FOR_K (-actual_fsize)) | |
ae180d84 JL |
1899 | init_stack_free = 4 * num_restore; |
1900 | else | |
fda41d93 | 1901 | init_stack_free = (signed) actual_fsize; |
ae180d84 | 1902 | |
0e668396 | 1903 | /* Deallocate the rest of the stack if it is > 32K. */ |
5a82ecd9 | 1904 | if ((unsigned int) actual_fsize > init_stack_free) |
b84d824d | 1905 | increment_stack (actual_fsize - init_stack_free, false); |
ae180d84 JL |
1906 | |
1907 | /* Special case interrupt functions that save all registers | |
1908 | for a call. */ | |
29a65e3d NC |
1909 | if (interrupt_handler && ((1L << LINK_POINTER_REGNUM) & reg_saved) != 0) |
1910 | { | |
223a9d64 | 1911 | if (! TARGET_DISABLE_CALLT) |
b4378319 NC |
1912 | emit_insn (gen_callt_restore_all_interrupt ()); |
1913 | else | |
1914 | emit_insn (gen_restore_all_interrupt ()); | |
29a65e3d | 1915 | } |
ae180d84 JL |
1916 | else |
1917 | { | |
0e668396 | 1918 | /* Restore registers from the beginning of the stack frame. */ |
223a9d64 | 1919 | int offset = init_stack_free - 4; |
ae180d84 JL |
1920 | |
1921 | /* Restore the return pointer first. */ | |
29a65e3d NC |
1922 | if (num_restore > 0 |
1923 | && REGNO (restore_regs [num_restore - 1]) == LINK_POINTER_REGNUM) | |
ae180d84 JL |
1924 | { |
1925 | emit_move_insn (restore_regs[--num_restore], | |
c5c76735 | 1926 | gen_rtx_MEM (SImode, |
0a81f074 RS |
1927 | plus_constant (Pmode, |
1928 | stack_pointer_rtx, | |
c5c76735 | 1929 | offset))); |
ae180d84 JL |
1930 | offset -= 4; |
1931 | } | |
1932 | ||
1933 | for (i = 0; i < num_restore; i++) | |
1934 | { | |
1935 | emit_move_insn (restore_regs[i], | |
c5c76735 | 1936 | gen_rtx_MEM (SImode, |
0a81f074 RS |
1937 | plus_constant (Pmode, |
1938 | stack_pointer_rtx, | |
c5c76735 | 1939 | offset))); |
ae180d84 | 1940 | |
c41c1387 | 1941 | emit_use (restore_regs[i]); |
ae180d84 JL |
1942 | offset -= 4; |
1943 | } | |
1944 | ||
1945 | /* Cut back the remainder of the stack. */ | |
b84d824d NC |
1946 | increment_stack (init_stack_free + crtl->args.pretend_args_size, |
1947 | false); | |
ae180d84 JL |
1948 | } |
1949 | ||
1950 | /* And return or use reti for interrupt handlers. */ | |
1951 | if (interrupt_handler) | |
b4378319 | 1952 | { |
dbdbd982 | 1953 | if (! TARGET_DISABLE_CALLT && (TARGET_V850E_UP)) |
b4378319 NC |
1954 | emit_insn (gen_callt_return_interrupt ()); |
1955 | else | |
1956 | emit_jump_insn (gen_return_interrupt ()); | |
1957 | } | |
ae180d84 JL |
1958 | else if (actual_fsize) |
1959 | emit_jump_insn (gen_return_internal ()); | |
1960 | else | |
7323a100 | 1961 | emit_jump_insn (gen_return_simple ()); |
ae180d84 JL |
1962 | } |
1963 | ||
ae180d84 JL |
1964 | v850_interrupt_cache_p = FALSE; |
1965 | v850_interrupt_p = FALSE; | |
1966 | } | |
1967 | ||
3ce15347 | 1968 | /* Retrieve the data area that has been chosen for the given decl. */ |
ae180d84 | 1969 | |
3ce15347 | 1970 | v850_data_area |
59f3507d | 1971 | v850_get_data_area (tree decl) |
3ce15347 | 1972 | { |
91d231cb | 1973 | if (lookup_attribute ("sda", DECL_ATTRIBUTES (decl)) != NULL_TREE) |
3ce15347 NC |
1974 | return DATA_AREA_SDA; |
1975 | ||
91d231cb | 1976 | if (lookup_attribute ("tda", DECL_ATTRIBUTES (decl)) != NULL_TREE) |
3ce15347 NC |
1977 | return DATA_AREA_TDA; |
1978 | ||
91d231cb | 1979 | if (lookup_attribute ("zda", DECL_ATTRIBUTES (decl)) != NULL_TREE) |
3ce15347 NC |
1980 | return DATA_AREA_ZDA; |
1981 | ||
1982 | return DATA_AREA_NORMAL; | |
1983 | } | |
ae180d84 | 1984 | |
3ce15347 NC |
1985 | /* Store the indicated data area in the decl's attributes. */ |
1986 | ||
1987 | static void | |
59f3507d | 1988 | v850_set_data_area (tree decl, v850_data_area data_area) |
3ce15347 NC |
1989 | { |
1990 | tree name; | |
1991 | ||
1992 | switch (data_area) | |
1993 | { | |
1994 | case DATA_AREA_SDA: name = get_identifier ("sda"); break; | |
1995 | case DATA_AREA_TDA: name = get_identifier ("tda"); break; | |
1996 | case DATA_AREA_ZDA: name = get_identifier ("zda"); break; | |
1997 | default: | |
1998 | return; | |
1999 | } | |
2000 | ||
91d231cb JM |
2001 | DECL_ATTRIBUTES (decl) = tree_cons |
2002 | (name, NULL, DECL_ATTRIBUTES (decl)); | |
3ce15347 NC |
2003 | } |
2004 | \f | |
91d231cb JM |
2005 | /* Handle an "interrupt" attribute; arguments as in |
2006 | struct attribute_spec.handler. */ | |
2007 | static tree | |
4849deb1 | 2008 | v850_handle_interrupt_attribute (tree *node, tree name, |
59f3507d NN |
2009 | tree args ATTRIBUTE_UNUSED, |
2010 | int flags ATTRIBUTE_UNUSED, | |
2011 | bool * no_add_attrs) | |
91d231cb JM |
2012 | { |
2013 | if (TREE_CODE (*node) != FUNCTION_DECL) | |
2014 | { | |
29d08eba JM |
2015 | warning (OPT_Wattributes, "%qE attribute only applies to functions", |
2016 | name); | |
91d231cb JM |
2017 | *no_add_attrs = true; |
2018 | } | |
2019 | ||
2020 | return NULL_TREE; | |
2021 | } | |
2022 | ||
2023 | /* Handle a "sda", "tda" or "zda" attribute; arguments as in | |
2024 | struct attribute_spec.handler. */ | |
2025 | static tree | |
4849deb1 | 2026 | v850_handle_data_area_attribute (tree *node, tree name, |
59f3507d NN |
2027 | tree args ATTRIBUTE_UNUSED, |
2028 | int flags ATTRIBUTE_UNUSED, | |
2029 | bool * no_add_attrs) | |
ae180d84 | 2030 | { |
3ce15347 NC |
2031 | v850_data_area data_area; |
2032 | v850_data_area area; | |
91d231cb | 2033 | tree decl = *node; |
ae180d84 | 2034 | |
3ce15347 | 2035 | /* Implement data area attribute. */ |
91d231cb | 2036 | if (is_attribute_p ("sda", name)) |
3ce15347 | 2037 | data_area = DATA_AREA_SDA; |
91d231cb | 2038 | else if (is_attribute_p ("tda", name)) |
3ce15347 | 2039 | data_area = DATA_AREA_TDA; |
91d231cb | 2040 | else if (is_attribute_p ("zda", name)) |
3ce15347 NC |
2041 | data_area = DATA_AREA_ZDA; |
2042 | else | |
f2f84cba | 2043 | gcc_unreachable (); |
3ce15347 NC |
2044 | |
2045 | switch (TREE_CODE (decl)) | |
2046 | { | |
2047 | case VAR_DECL: | |
2048 | if (current_function_decl != NULL_TREE) | |
91d231cb | 2049 | { |
c5d75364 MLI |
2050 | error_at (DECL_SOURCE_LOCATION (decl), |
2051 | "data area attributes cannot be specified for " | |
2052 | "local variables"); | |
91d231cb JM |
2053 | *no_add_attrs = true; |
2054 | } | |
2055 | ||
d5356522 | 2056 | /* FALLTHRU */ |
3ce15347 NC |
2057 | |
2058 | case FUNCTION_DECL: | |
2059 | area = v850_get_data_area (decl); | |
2060 | if (area != DATA_AREA_NORMAL && data_area != area) | |
91d231cb | 2061 | { |
dee15844 JM |
2062 | error ("data area of %q+D conflicts with previous declaration", |
2063 | decl); | |
91d231cb JM |
2064 | *no_add_attrs = true; |
2065 | } | |
2066 | break; | |
3ce15347 NC |
2067 | |
2068 | default: | |
2069 | break; | |
2070 | } | |
91d231cb JM |
2071 | |
2072 | return NULL_TREE; | |
ae180d84 JL |
2073 | } |
2074 | ||
2075 | \f | |
2076 | /* Return nonzero if FUNC is an interrupt function as specified | |
2077 | by the "interrupt" attribute. */ | |
2078 | ||
2079 | int | |
59f3507d | 2080 | v850_interrupt_function_p (tree func) |
ae180d84 JL |
2081 | { |
2082 | tree a; | |
2083 | int ret = 0; | |
2084 | ||
2085 | if (v850_interrupt_cache_p) | |
2086 | return v850_interrupt_p; | |
2087 | ||
2088 | if (TREE_CODE (func) != FUNCTION_DECL) | |
2089 | return 0; | |
2090 | ||
91d231cb | 2091 | a = lookup_attribute ("interrupt_handler", DECL_ATTRIBUTES (func)); |
ae180d84 JL |
2092 | if (a != NULL_TREE) |
2093 | ret = 1; | |
2094 | ||
2095 | else | |
2096 | { | |
91d231cb | 2097 | a = lookup_attribute ("interrupt", DECL_ATTRIBUTES (func)); |
ae180d84 JL |
2098 | ret = a != NULL_TREE; |
2099 | } | |
2100 | ||
2101 | /* Its not safe to trust global variables until after function inlining has | |
2102 | been done. */ | |
2103 | if (reload_completed | reload_in_progress) | |
2104 | v850_interrupt_p = ret; | |
2105 | ||
2106 | return ret; | |
2107 | } | |
2108 | ||
2109 | \f | |
fb49053f | 2110 | static void |
59f3507d | 2111 | v850_encode_data_area (tree decl, rtx symbol) |
ae180d84 | 2112 | { |
50d1ff6a | 2113 | int flags; |
3ce15347 | 2114 | |
839a4992 | 2115 | /* Map explicit sections into the appropriate attribute */ |
3ce15347 NC |
2116 | if (v850_get_data_area (decl) == DATA_AREA_NORMAL) |
2117 | { | |
2118 | if (DECL_SECTION_NAME (decl)) | |
2119 | { | |
f961457f | 2120 | const char *name = DECL_SECTION_NAME (decl); |
3ce15347 NC |
2121 | |
2122 | if (streq (name, ".zdata") || streq (name, ".zbss")) | |
2123 | v850_set_data_area (decl, DATA_AREA_ZDA); | |
2124 | ||
2125 | else if (streq (name, ".sdata") || streq (name, ".sbss")) | |
2126 | v850_set_data_area (decl, DATA_AREA_SDA); | |
2127 | ||
2128 | else if (streq (name, ".tdata")) | |
2129 | v850_set_data_area (decl, DATA_AREA_TDA); | |
2130 | } | |
2131 | ||
2132 | /* If no attribute, support -m{zda,sda,tda}=n */ | |
2133 | else | |
2134 | { | |
2135 | int size = int_size_in_bytes (TREE_TYPE (decl)); | |
2136 | if (size <= 0) | |
2137 | ; | |
2138 | ||
4a8d3d91 | 2139 | else if (size <= small_memory_max [(int) SMALL_MEMORY_TDA]) |
3ce15347 NC |
2140 | v850_set_data_area (decl, DATA_AREA_TDA); |
2141 | ||
4a8d3d91 | 2142 | else if (size <= small_memory_max [(int) SMALL_MEMORY_SDA]) |
3ce15347 NC |
2143 | v850_set_data_area (decl, DATA_AREA_SDA); |
2144 | ||
4a8d3d91 | 2145 | else if (size <= small_memory_max [(int) SMALL_MEMORY_ZDA]) |
3ce15347 NC |
2146 | v850_set_data_area (decl, DATA_AREA_ZDA); |
2147 | } | |
2148 | ||
2149 | if (v850_get_data_area (decl) == DATA_AREA_NORMAL) | |
2150 | return; | |
2151 | } | |
2152 | ||
50d1ff6a | 2153 | flags = SYMBOL_REF_FLAGS (symbol); |
3ce15347 NC |
2154 | switch (v850_get_data_area (decl)) |
2155 | { | |
50d1ff6a RH |
2156 | case DATA_AREA_ZDA: flags |= SYMBOL_FLAG_ZDA; break; |
2157 | case DATA_AREA_TDA: flags |= SYMBOL_FLAG_TDA; break; | |
2158 | case DATA_AREA_SDA: flags |= SYMBOL_FLAG_SDA; break; | |
f2f84cba | 2159 | default: gcc_unreachable (); |
3ce15347 | 2160 | } |
50d1ff6a | 2161 | SYMBOL_REF_FLAGS (symbol) = flags; |
ae180d84 | 2162 | } |
145870b5 | 2163 | |
fb49053f | 2164 | static void |
59f3507d | 2165 | v850_encode_section_info (tree decl, rtx rtl, int first) |
fb49053f | 2166 | { |
c6a2438a | 2167 | default_encode_section_info (decl, rtl, first); |
50d1ff6a RH |
2168 | |
2169 | if (TREE_CODE (decl) == VAR_DECL | |
fb49053f | 2170 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
c6a2438a | 2171 | v850_encode_data_area (decl, XEXP (rtl, 0)); |
fb49053f RH |
2172 | } |
2173 | ||
145870b5 NC |
2174 | /* Construct a JR instruction to a routine that will perform the equivalent of |
2175 | the RTL passed in as an argument. This RTL is a function epilogue that | |
2176 | pops registers off the stack and possibly releases some extra stack space | |
2177 | as well. The code has already verified that the RTL matches these | |
2178 | requirements. */ | |
223a9d64 | 2179 | |
145870b5 | 2180 | char * |
59f3507d | 2181 | construct_restore_jr (rtx op) |
145870b5 NC |
2182 | { |
2183 | int count = XVECLEN (op, 0); | |
2184 | int stack_bytes; | |
2185 | unsigned long int mask; | |
2186 | unsigned long int first; | |
2187 | unsigned long int last; | |
2188 | int i; | |
2189 | static char buff [100]; /* XXX */ | |
2190 | ||
2191 | if (count <= 2) | |
2192 | { | |
ab532386 | 2193 | error ("bogus JR construction: %d", count); |
145870b5 NC |
2194 | return NULL; |
2195 | } | |
2196 | ||
2197 | /* Work out how many bytes to pop off the stack before retrieving | |
2198 | registers. */ | |
f2f84cba NS |
2199 | gcc_assert (GET_CODE (XVECEXP (op, 0, 1)) == SET); |
2200 | gcc_assert (GET_CODE (SET_SRC (XVECEXP (op, 0, 1))) == PLUS); | |
2201 | gcc_assert (GET_CODE (XEXP (SET_SRC (XVECEXP (op, 0, 1)), 1)) == CONST_INT); | |
145870b5 NC |
2202 | |
2203 | stack_bytes = INTVAL (XEXP (SET_SRC (XVECEXP (op, 0, 1)), 1)); | |
2204 | ||
d4de0221 | 2205 | /* Each pop will remove 4 bytes from the stack.... */ |
145870b5 NC |
2206 | stack_bytes -= (count - 2) * 4; |
2207 | ||
2208 | /* Make sure that the amount we are popping either 0 or 16 bytes. */ | |
223a9d64 | 2209 | if (stack_bytes != 0) |
145870b5 | 2210 | { |
c725bd79 | 2211 | error ("bad amount of stack space removal: %d", stack_bytes); |
145870b5 NC |
2212 | return NULL; |
2213 | } | |
2214 | ||
2215 | /* Now compute the bit mask of registers to push. */ | |
2216 | mask = 0; | |
2217 | for (i = 2; i < count; i++) | |
2218 | { | |
2219 | rtx vector_element = XVECEXP (op, 0, i); | |
2220 | ||
f2f84cba NS |
2221 | gcc_assert (GET_CODE (vector_element) == SET); |
2222 | gcc_assert (GET_CODE (SET_DEST (vector_element)) == REG); | |
2223 | gcc_assert (register_is_ok_for_epilogue (SET_DEST (vector_element), | |
2224 | SImode)); | |
145870b5 NC |
2225 | |
2226 | mask |= 1 << REGNO (SET_DEST (vector_element)); | |
2227 | } | |
2228 | ||
2229 | /* Scan for the first register to pop. */ | |
2230 | for (first = 0; first < 32; first++) | |
2231 | { | |
2232 | if (mask & (1 << first)) | |
2233 | break; | |
2234 | } | |
2235 | ||
f2f84cba | 2236 | gcc_assert (first < 32); |
145870b5 NC |
2237 | |
2238 | /* Discover the last register to pop. */ | |
29a65e3d | 2239 | if (mask & (1 << LINK_POINTER_REGNUM)) |
145870b5 | 2240 | { |
29a65e3d | 2241 | last = LINK_POINTER_REGNUM; |
145870b5 NC |
2242 | } |
2243 | else | |
2244 | { | |
f2f84cba NS |
2245 | gcc_assert (!stack_bytes); |
2246 | gcc_assert (mask & (1 << 29)); | |
145870b5 NC |
2247 | |
2248 | last = 29; | |
2249 | } | |
2250 | ||
323d8e7b JL |
2251 | /* Note, it is possible to have gaps in the register mask. |
2252 | We ignore this here, and generate a JR anyway. We will | |
3ce15347 | 2253 | be popping more registers than is strictly necessary, but |
323d8e7b JL |
2254 | it does save code space. */ |
2255 | ||
be1d3f93 NC |
2256 | if (TARGET_LONG_CALLS) |
2257 | { | |
2258 | char name[40]; | |
2259 | ||
2260 | if (first == last) | |
2261 | sprintf (name, "__return_%s", reg_names [first]); | |
2262 | else | |
2263 | sprintf (name, "__return_%s_%s", reg_names [first], reg_names [last]); | |
2264 | ||
2265 | sprintf (buff, "movhi hi(%s), r0, r6\n\tmovea lo(%s), r6, r6\n\tjmp r6", | |
2266 | name, name); | |
2267 | } | |
145870b5 | 2268 | else |
be1d3f93 NC |
2269 | { |
2270 | if (first == last) | |
2271 | sprintf (buff, "jr __return_%s", reg_names [first]); | |
2272 | else | |
2273 | sprintf (buff, "jr __return_%s_%s", reg_names [first], reg_names [last]); | |
2274 | } | |
2275 | ||
145870b5 NC |
2276 | return buff; |
2277 | } | |
2278 | ||
2279 | ||
145870b5 NC |
2280 | /* Construct a JARL instruction to a routine that will perform the equivalent |
2281 | of the RTL passed as a parameter. This RTL is a function prologue that | |
2282 | saves some of the registers r20 - r31 onto the stack, and possibly acquires | |
2283 | some stack space as well. The code has already verified that the RTL | |
2284 | matches these requirements. */ | |
2285 | char * | |
59f3507d | 2286 | construct_save_jarl (rtx op) |
145870b5 NC |
2287 | { |
2288 | int count = XVECLEN (op, 0); | |
2289 | int stack_bytes; | |
2290 | unsigned long int mask; | |
2291 | unsigned long int first; | |
2292 | unsigned long int last; | |
2293 | int i; | |
2294 | static char buff [100]; /* XXX */ | |
2295 | ||
223a9d64 | 2296 | if (count <= (TARGET_LONG_CALLS ? 3 : 2)) |
145870b5 | 2297 | { |
d8a07487 | 2298 | error ("bogus JARL construction: %d", count); |
145870b5 NC |
2299 | return NULL; |
2300 | } | |
2301 | ||
2302 | /* Paranoia. */ | |
f2f84cba NS |
2303 | gcc_assert (GET_CODE (XVECEXP (op, 0, 0)) == SET); |
2304 | gcc_assert (GET_CODE (SET_SRC (XVECEXP (op, 0, 0))) == PLUS); | |
2305 | gcc_assert (GET_CODE (XEXP (SET_SRC (XVECEXP (op, 0, 0)), 0)) == REG); | |
2306 | gcc_assert (GET_CODE (XEXP (SET_SRC (XVECEXP (op, 0, 0)), 1)) == CONST_INT); | |
145870b5 NC |
2307 | |
2308 | /* Work out how many bytes to push onto the stack after storing the | |
2309 | registers. */ | |
2310 | stack_bytes = INTVAL (XEXP (SET_SRC (XVECEXP (op, 0, 0)), 1)); | |
2311 | ||
d4de0221 | 2312 | /* Each push will put 4 bytes from the stack.... */ |
1ec0eb08 | 2313 | stack_bytes += (count - (TARGET_LONG_CALLS ? 4 : 3)) * 4; |
145870b5 NC |
2314 | |
2315 | /* Make sure that the amount we are popping either 0 or 16 bytes. */ | |
223a9d64 | 2316 | if (stack_bytes != 0) |
145870b5 | 2317 | { |
c725bd79 | 2318 | error ("bad amount of stack space removal: %d", stack_bytes); |
145870b5 NC |
2319 | return NULL; |
2320 | } | |
2321 | ||
2322 | /* Now compute the bit mask of registers to push. */ | |
2323 | mask = 0; | |
1ec0eb08 | 2324 | for (i = 1; i < count - (TARGET_LONG_CALLS ? 3 : 2); i++) |
145870b5 NC |
2325 | { |
2326 | rtx vector_element = XVECEXP (op, 0, i); | |
2327 | ||
f2f84cba NS |
2328 | gcc_assert (GET_CODE (vector_element) == SET); |
2329 | gcc_assert (GET_CODE (SET_SRC (vector_element)) == REG); | |
2330 | gcc_assert (register_is_ok_for_epilogue (SET_SRC (vector_element), | |
2331 | SImode)); | |
145870b5 NC |
2332 | |
2333 | mask |= 1 << REGNO (SET_SRC (vector_element)); | |
2334 | } | |
2335 | ||
2336 | /* Scan for the first register to push. */ | |
2337 | for (first = 0; first < 32; first++) | |
2338 | { | |
2339 | if (mask & (1 << first)) | |
2340 | break; | |
2341 | } | |
2342 | ||
f2f84cba | 2343 | gcc_assert (first < 32); |
145870b5 NC |
2344 | |
2345 | /* Discover the last register to push. */ | |
29a65e3d | 2346 | if (mask & (1 << LINK_POINTER_REGNUM)) |
145870b5 | 2347 | { |
29a65e3d | 2348 | last = LINK_POINTER_REGNUM; |
145870b5 NC |
2349 | } |
2350 | else | |
2351 | { | |
f2f84cba NS |
2352 | gcc_assert (!stack_bytes); |
2353 | gcc_assert (mask & (1 << 29)); | |
145870b5 NC |
2354 | |
2355 | last = 29; | |
2356 | } | |
2357 | ||
323d8e7b JL |
2358 | /* Note, it is possible to have gaps in the register mask. |
2359 | We ignore this here, and generate a JARL anyway. We will | |
3ce15347 | 2360 | be pushing more registers than is strictly necessary, but |
323d8e7b JL |
2361 | it does save code space. */ |
2362 | ||
be1d3f93 NC |
2363 | if (TARGET_LONG_CALLS) |
2364 | { | |
2365 | char name[40]; | |
2366 | ||
2367 | if (first == last) | |
2368 | sprintf (name, "__save_%s", reg_names [first]); | |
2369 | else | |
2370 | sprintf (name, "__save_%s_%s", reg_names [first], reg_names [last]); | |
2371 | ||
dbdbd982 NC |
2372 | if (TARGET_V850E3V5_UP) |
2373 | sprintf (buff, "mov hilo(%s), r11\n\tjarl [r11], r10", name); | |
2374 | else | |
2375 | sprintf (buff, "movhi hi(%s), r0, r11\n\tmovea lo(%s), r11, r11\n\tjarl .+4, r10\n\tadd 4, r10\n\tjmp r11", | |
2376 | name, name); | |
be1d3f93 | 2377 | } |
145870b5 | 2378 | else |
be1d3f93 NC |
2379 | { |
2380 | if (first == last) | |
2381 | sprintf (buff, "jarl __save_%s, r10", reg_names [first]); | |
2382 | else | |
2383 | sprintf (buff, "jarl __save_%s_%s, r10", reg_names [first], | |
2384 | reg_names [last]); | |
2385 | } | |
145870b5 NC |
2386 | |
2387 | return buff; | |
2388 | } | |
2389 | ||
3ce15347 | 2390 | /* A version of asm_output_aligned_bss() that copes with the special |
d4de0221 | 2391 | data areas of the v850. */ |
3ce15347 | 2392 | void |
59f3507d NN |
2393 | v850_output_aligned_bss (FILE * file, |
2394 | tree decl, | |
2395 | const char * name, | |
ea40ba9c | 2396 | unsigned HOST_WIDE_INT size, |
59f3507d | 2397 | int align) |
3ce15347 | 2398 | { |
3ce15347 NC |
2399 | switch (v850_get_data_area (decl)) |
2400 | { | |
2401 | case DATA_AREA_ZDA: | |
d6b5193b | 2402 | switch_to_section (zbss_section); |
3ce15347 NC |
2403 | break; |
2404 | ||
2405 | case DATA_AREA_SDA: | |
d6b5193b | 2406 | switch_to_section (sbss_section); |
3ce15347 NC |
2407 | break; |
2408 | ||
2409 | case DATA_AREA_TDA: | |
d6b5193b | 2410 | switch_to_section (tdata_section); |
d5356522 | 2411 | break; |
3ce15347 NC |
2412 | |
2413 | default: | |
d6b5193b | 2414 | switch_to_section (bss_section); |
3ce15347 NC |
2415 | break; |
2416 | } | |
2417 | ||
2418 | ASM_OUTPUT_ALIGN (file, floor_log2 (align / BITS_PER_UNIT)); | |
2419 | #ifdef ASM_DECLARE_OBJECT_NAME | |
2420 | last_assemble_variable_decl = decl; | |
2421 | ASM_DECLARE_OBJECT_NAME (file, name, decl); | |
2422 | #else | |
2423 | /* Standard thing is just output label for the object. */ | |
2424 | ASM_OUTPUT_LABEL (file, name); | |
2425 | #endif /* ASM_DECLARE_OBJECT_NAME */ | |
2426 | ASM_OUTPUT_SKIP (file, size ? size : 1); | |
2427 | } | |
2428 | ||
2429 | /* Called via the macro ASM_OUTPUT_DECL_COMMON */ | |
2430 | void | |
59f3507d NN |
2431 | v850_output_common (FILE * file, |
2432 | tree decl, | |
2433 | const char * name, | |
2434 | int size, | |
2435 | int align) | |
3ce15347 NC |
2436 | { |
2437 | if (decl == NULL_TREE) | |
2438 | { | |
b9f7d63e | 2439 | fprintf (file, "%s", COMMON_ASM_OP); |
3ce15347 NC |
2440 | } |
2441 | else | |
2442 | { | |
2443 | switch (v850_get_data_area (decl)) | |
2444 | { | |
2445 | case DATA_AREA_ZDA: | |
b9f7d63e | 2446 | fprintf (file, "%s", ZCOMMON_ASM_OP); |
3ce15347 NC |
2447 | break; |
2448 | ||
2449 | case DATA_AREA_SDA: | |
b9f7d63e | 2450 | fprintf (file, "%s", SCOMMON_ASM_OP); |
3ce15347 NC |
2451 | break; |
2452 | ||
2453 | case DATA_AREA_TDA: | |
b9f7d63e | 2454 | fprintf (file, "%s", TCOMMON_ASM_OP); |
3ce15347 NC |
2455 | break; |
2456 | ||
2457 | default: | |
b9f7d63e | 2458 | fprintf (file, "%s", COMMON_ASM_OP); |
3ce15347 NC |
2459 | break; |
2460 | } | |
2461 | } | |
2462 | ||
2463 | assemble_name (file, name); | |
2464 | fprintf (file, ",%u,%u\n", size, align / BITS_PER_UNIT); | |
2465 | } | |
2466 | ||
2467 | /* Called via the macro ASM_OUTPUT_DECL_LOCAL */ | |
2468 | void | |
59f3507d NN |
2469 | v850_output_local (FILE * file, |
2470 | tree decl, | |
2471 | const char * name, | |
2472 | int size, | |
2473 | int align) | |
3ce15347 | 2474 | { |
b9f7d63e | 2475 | fprintf (file, "%s", LOCAL_ASM_OP); |
3ce15347 NC |
2476 | assemble_name (file, name); |
2477 | fprintf (file, "\n"); | |
2478 | ||
2479 | ASM_OUTPUT_ALIGNED_DECL_COMMON (file, decl, name, size, align); | |
2480 | } | |
3ce15347 NC |
2481 | |
2482 | /* Add data area to the given declaration if a ghs data area pragma is | |
2483 | currently in effect (#pragma ghs startXXX/endXXX). */ | |
12a68f1f | 2484 | static void |
59f3507d | 2485 | v850_insert_attributes (tree decl, tree * attr_ptr ATTRIBUTE_UNUSED ) |
3ce15347 NC |
2486 | { |
2487 | if (data_area_stack | |
2488 | && data_area_stack->data_area | |
2489 | && current_function_decl == NULL_TREE | |
2490 | && (TREE_CODE (decl) == VAR_DECL || TREE_CODE (decl) == CONST_DECL) | |
2491 | && v850_get_data_area (decl) == DATA_AREA_NORMAL) | |
2492 | v850_set_data_area (decl, data_area_stack->data_area); | |
2493 | ||
4912a07c | 2494 | /* Initialize the default names of the v850 specific sections, |
3ce15347 NC |
2495 | if this has not been done before. */ |
2496 | ||
2497 | if (GHS_default_section_names [(int) GHS_SECTION_KIND_SDATA] == NULL) | |
2498 | { | |
2499 | GHS_default_section_names [(int) GHS_SECTION_KIND_SDATA] | |
cd47dfd0 | 2500 | = ".sdata"; |
3ce15347 NC |
2501 | |
2502 | GHS_default_section_names [(int) GHS_SECTION_KIND_ROSDATA] | |
cd47dfd0 | 2503 | = ".rosdata"; |
3ce15347 NC |
2504 | |
2505 | GHS_default_section_names [(int) GHS_SECTION_KIND_TDATA] | |
cd47dfd0 | 2506 | = ".tdata"; |
3ce15347 NC |
2507 | |
2508 | GHS_default_section_names [(int) GHS_SECTION_KIND_ZDATA] | |
cd47dfd0 | 2509 | = ".zdata"; |
3ce15347 NC |
2510 | |
2511 | GHS_default_section_names [(int) GHS_SECTION_KIND_ROZDATA] | |
cd47dfd0 | 2512 | = ".rozdata"; |
3ce15347 NC |
2513 | } |
2514 | ||
2515 | if (current_function_decl == NULL_TREE | |
2516 | && (TREE_CODE (decl) == VAR_DECL | |
2517 | || TREE_CODE (decl) == CONST_DECL | |
2518 | || TREE_CODE (decl) == FUNCTION_DECL) | |
2519 | && (!DECL_EXTERNAL (decl) || DECL_INITIAL (decl)) | |
2520 | && !DECL_SECTION_NAME (decl)) | |
2521 | { | |
2522 | enum GHS_section_kind kind = GHS_SECTION_KIND_DEFAULT; | |
cd47dfd0 | 2523 | const char * chosen_section; |
3ce15347 NC |
2524 | |
2525 | if (TREE_CODE (decl) == FUNCTION_DECL) | |
2526 | kind = GHS_SECTION_KIND_TEXT; | |
2527 | else | |
2528 | { | |
d4de0221 | 2529 | /* First choose a section kind based on the data area of the decl. */ |
3ce15347 NC |
2530 | switch (v850_get_data_area (decl)) |
2531 | { | |
2532 | default: | |
f2f84cba | 2533 | gcc_unreachable (); |
3ce15347 NC |
2534 | |
2535 | case DATA_AREA_SDA: | |
2536 | kind = ((TREE_READONLY (decl)) | |
2537 | ? GHS_SECTION_KIND_ROSDATA | |
2538 | : GHS_SECTION_KIND_SDATA); | |
2539 | break; | |
2540 | ||
2541 | case DATA_AREA_TDA: | |
2542 | kind = GHS_SECTION_KIND_TDATA; | |
2543 | break; | |
2544 | ||
2545 | case DATA_AREA_ZDA: | |
2546 | kind = ((TREE_READONLY (decl)) | |
2547 | ? GHS_SECTION_KIND_ROZDATA | |
2548 | : GHS_SECTION_KIND_ZDATA); | |
2549 | break; | |
2550 | ||
2551 | case DATA_AREA_NORMAL: /* default data area */ | |
2552 | if (TREE_READONLY (decl)) | |
2553 | kind = GHS_SECTION_KIND_RODATA; | |
2554 | else if (DECL_INITIAL (decl)) | |
2555 | kind = GHS_SECTION_KIND_DATA; | |
2556 | else | |
2557 | kind = GHS_SECTION_KIND_BSS; | |
2558 | } | |
2559 | } | |
2560 | ||
2561 | /* Now, if the section kind has been explicitly renamed, | |
d4de0221 | 2562 | then attach a section attribute. */ |
3ce15347 NC |
2563 | chosen_section = GHS_current_section_names [(int) kind]; |
2564 | ||
2565 | /* Otherwise, if this kind of section needs an explicit section | |
d4de0221 | 2566 | attribute, then also attach one. */ |
3ce15347 NC |
2567 | if (chosen_section == NULL) |
2568 | chosen_section = GHS_default_section_names [(int) kind]; | |
2569 | ||
2570 | if (chosen_section) | |
2571 | { | |
2572 | /* Only set the section name if specified by a pragma, because | |
2573 | otherwise it will force those variables to get allocated storage | |
2574 | in this module, rather than by the linker. */ | |
24d047a3 | 2575 | set_decl_section_name (decl, chosen_section); |
3ce15347 NC |
2576 | } |
2577 | } | |
2578 | } | |
b4378319 | 2579 | |
b4378319 NC |
2580 | /* Construct a DISPOSE instruction that is the equivalent of |
2581 | the given RTX. We have already verified that this should | |
2582 | be possible. */ | |
2583 | ||
2584 | char * | |
59f3507d | 2585 | construct_dispose_instruction (rtx op) |
b4378319 NC |
2586 | { |
2587 | int count = XVECLEN (op, 0); | |
2588 | int stack_bytes; | |
2589 | unsigned long int mask; | |
2590 | int i; | |
2591 | static char buff[ 100 ]; /* XXX */ | |
2592 | int use_callt = 0; | |
2593 | ||
2594 | if (count <= 2) | |
2595 | { | |
ab532386 | 2596 | error ("bogus DISPOSE construction: %d", count); |
b4378319 NC |
2597 | return NULL; |
2598 | } | |
2599 | ||
2600 | /* Work out how many bytes to pop off the | |
2601 | stack before retrieving registers. */ | |
f2f84cba NS |
2602 | gcc_assert (GET_CODE (XVECEXP (op, 0, 1)) == SET); |
2603 | gcc_assert (GET_CODE (SET_SRC (XVECEXP (op, 0, 1))) == PLUS); | |
2604 | gcc_assert (GET_CODE (XEXP (SET_SRC (XVECEXP (op, 0, 1)), 1)) == CONST_INT); | |
b4378319 NC |
2605 | |
2606 | stack_bytes = INTVAL (XEXP (SET_SRC (XVECEXP (op, 0, 1)), 1)); | |
2607 | ||
d4de0221 | 2608 | /* Each pop will remove 4 bytes from the stack.... */ |
b4378319 NC |
2609 | stack_bytes -= (count - 2) * 4; |
2610 | ||
2611 | /* Make sure that the amount we are popping | |
2612 | will fit into the DISPOSE instruction. */ | |
2613 | if (stack_bytes > 128) | |
2614 | { | |
ab532386 | 2615 | error ("too much stack space to dispose of: %d", stack_bytes); |
b4378319 NC |
2616 | return NULL; |
2617 | } | |
2618 | ||
2619 | /* Now compute the bit mask of registers to push. */ | |
2620 | mask = 0; | |
2621 | ||
2622 | for (i = 2; i < count; i++) | |
2623 | { | |
2624 | rtx vector_element = XVECEXP (op, 0, i); | |
2625 | ||
f2f84cba NS |
2626 | gcc_assert (GET_CODE (vector_element) == SET); |
2627 | gcc_assert (GET_CODE (SET_DEST (vector_element)) == REG); | |
2628 | gcc_assert (register_is_ok_for_epilogue (SET_DEST (vector_element), | |
2629 | SImode)); | |
b4378319 NC |
2630 | |
2631 | if (REGNO (SET_DEST (vector_element)) == 2) | |
2632 | use_callt = 1; | |
2633 | else | |
2634 | mask |= 1 << REGNO (SET_DEST (vector_element)); | |
2635 | } | |
2636 | ||
2637 | if (! TARGET_DISABLE_CALLT | |
223a9d64 | 2638 | && (use_callt || stack_bytes == 0)) |
b4378319 NC |
2639 | { |
2640 | if (use_callt) | |
2641 | { | |
2642 | sprintf (buff, "callt ctoff(__callt_return_r2_r%d)", (mask & (1 << 31)) ? 31 : 29); | |
2643 | return buff; | |
2644 | } | |
2645 | else | |
2646 | { | |
2647 | for (i = 20; i < 32; i++) | |
2648 | if (mask & (1 << i)) | |
2649 | break; | |
2650 | ||
2651 | if (i == 31) | |
2652 | sprintf (buff, "callt ctoff(__callt_return_r31c)"); | |
2653 | else | |
223a9d64 N |
2654 | sprintf (buff, "callt ctoff(__callt_return_r%d_r%s)", |
2655 | i, (mask & (1 << 31)) ? "31c" : "29"); | |
b4378319 NC |
2656 | } |
2657 | } | |
2658 | else | |
2659 | { | |
2660 | static char regs [100]; /* XXX */ | |
2661 | int done_one; | |
2662 | ||
2663 | /* Generate the DISPOSE instruction. Note we could just issue the | |
2664 | bit mask as a number as the assembler can cope with this, but for | |
2665 | the sake of our readers we turn it into a textual description. */ | |
2666 | regs[0] = 0; | |
2667 | done_one = 0; | |
2668 | ||
2669 | for (i = 20; i < 32; i++) | |
2670 | { | |
2671 | if (mask & (1 << i)) | |
2672 | { | |
2673 | int first; | |
2674 | ||
2675 | if (done_one) | |
2676 | strcat (regs, ", "); | |
2677 | else | |
2678 | done_one = 1; | |
2679 | ||
2680 | first = i; | |
2681 | strcat (regs, reg_names[ first ]); | |
2682 | ||
2683 | for (i++; i < 32; i++) | |
2684 | if ((mask & (1 << i)) == 0) | |
2685 | break; | |
2686 | ||
2687 | if (i > first + 1) | |
2688 | { | |
2689 | strcat (regs, " - "); | |
2690 | strcat (regs, reg_names[ i - 1 ] ); | |
2691 | } | |
2692 | } | |
2693 | } | |
2694 | ||
2695 | sprintf (buff, "dispose %d {%s}, r31", stack_bytes / 4, regs); | |
2696 | } | |
2697 | ||
2698 | return buff; | |
2699 | } | |
2700 | ||
b4378319 NC |
2701 | /* Construct a PREPARE instruction that is the equivalent of |
2702 | the given RTL. We have already verified that this should | |
2703 | be possible. */ | |
2704 | ||
2705 | char * | |
59f3507d | 2706 | construct_prepare_instruction (rtx op) |
b4378319 | 2707 | { |
223a9d64 | 2708 | int count; |
b4378319 NC |
2709 | int stack_bytes; |
2710 | unsigned long int mask; | |
2711 | int i; | |
2712 | static char buff[ 100 ]; /* XXX */ | |
2713 | int use_callt = 0; | |
2714 | ||
223a9d64 | 2715 | if (XVECLEN (op, 0) <= 1) |
b4378319 | 2716 | { |
223a9d64 | 2717 | error ("bogus PREPEARE construction: %d", XVECLEN (op, 0)); |
b4378319 NC |
2718 | return NULL; |
2719 | } | |
2720 | ||
2721 | /* Work out how many bytes to push onto | |
2722 | the stack after storing the registers. */ | |
f2f84cba NS |
2723 | gcc_assert (GET_CODE (XVECEXP (op, 0, 0)) == SET); |
2724 | gcc_assert (GET_CODE (SET_SRC (XVECEXP (op, 0, 0))) == PLUS); | |
2725 | gcc_assert (GET_CODE (XEXP (SET_SRC (XVECEXP (op, 0, 0)), 1)) == CONST_INT); | |
b4378319 NC |
2726 | |
2727 | stack_bytes = INTVAL (XEXP (SET_SRC (XVECEXP (op, 0, 0)), 1)); | |
2728 | ||
b4378319 NC |
2729 | |
2730 | /* Make sure that the amount we are popping | |
2731 | will fit into the DISPOSE instruction. */ | |
2732 | if (stack_bytes < -128) | |
2733 | { | |
ab532386 | 2734 | error ("too much stack space to prepare: %d", stack_bytes); |
b4378319 NC |
2735 | return NULL; |
2736 | } | |
2737 | ||
2738 | /* Now compute the bit mask of registers to push. */ | |
223a9d64 | 2739 | count = 0; |
b4378319 | 2740 | mask = 0; |
223a9d64 | 2741 | for (i = 1; i < XVECLEN (op, 0); i++) |
b4378319 NC |
2742 | { |
2743 | rtx vector_element = XVECEXP (op, 0, i); | |
2744 | ||
223a9d64 N |
2745 | if (GET_CODE (vector_element) == CLOBBER) |
2746 | continue; | |
2747 | ||
f2f84cba NS |
2748 | gcc_assert (GET_CODE (vector_element) == SET); |
2749 | gcc_assert (GET_CODE (SET_SRC (vector_element)) == REG); | |
2750 | gcc_assert (register_is_ok_for_epilogue (SET_SRC (vector_element), | |
2751 | SImode)); | |
b4378319 NC |
2752 | |
2753 | if (REGNO (SET_SRC (vector_element)) == 2) | |
2754 | use_callt = 1; | |
2755 | else | |
2756 | mask |= 1 << REGNO (SET_SRC (vector_element)); | |
223a9d64 | 2757 | count++; |
b4378319 NC |
2758 | } |
2759 | ||
223a9d64 N |
2760 | stack_bytes += count * 4; |
2761 | ||
b4378319 | 2762 | if ((! TARGET_DISABLE_CALLT) |
223a9d64 | 2763 | && (use_callt || stack_bytes == 0)) |
b4378319 NC |
2764 | { |
2765 | if (use_callt) | |
2766 | { | |
2767 | sprintf (buff, "callt ctoff(__callt_save_r2_r%d)", (mask & (1 << 31)) ? 31 : 29 ); | |
2768 | return buff; | |
2769 | } | |
2770 | ||
2771 | for (i = 20; i < 32; i++) | |
2772 | if (mask & (1 << i)) | |
2773 | break; | |
2774 | ||
2775 | if (i == 31) | |
2776 | sprintf (buff, "callt ctoff(__callt_save_r31c)"); | |
2777 | else | |
223a9d64 N |
2778 | sprintf (buff, "callt ctoff(__callt_save_r%d_r%s)", |
2779 | i, (mask & (1 << 31)) ? "31c" : "29"); | |
b4378319 NC |
2780 | } |
2781 | else | |
2782 | { | |
2783 | static char regs [100]; /* XXX */ | |
2784 | int done_one; | |
2785 | ||
2786 | ||
2787 | /* Generate the PREPARE instruction. Note we could just issue the | |
2788 | bit mask as a number as the assembler can cope with this, but for | |
2789 | the sake of our readers we turn it into a textual description. */ | |
2790 | regs[0] = 0; | |
2791 | done_one = 0; | |
2792 | ||
2793 | for (i = 20; i < 32; i++) | |
2794 | { | |
2795 | if (mask & (1 << i)) | |
2796 | { | |
2797 | int first; | |
2798 | ||
2799 | if (done_one) | |
2800 | strcat (regs, ", "); | |
2801 | else | |
2802 | done_one = 1; | |
2803 | ||
2804 | first = i; | |
2805 | strcat (regs, reg_names[ first ]); | |
2806 | ||
2807 | for (i++; i < 32; i++) | |
2808 | if ((mask & (1 << i)) == 0) | |
2809 | break; | |
2810 | ||
2811 | if (i > first + 1) | |
2812 | { | |
2813 | strcat (regs, " - "); | |
2814 | strcat (regs, reg_names[ i - 1 ] ); | |
2815 | } | |
2816 | } | |
2817 | } | |
2818 | ||
2819 | sprintf (buff, "prepare {%s}, %d", regs, (- stack_bytes) / 4); | |
2820 | } | |
2821 | ||
2822 | return buff; | |
2823 | } | |
223a9d64 | 2824 | |
a64761a3 DD |
2825 | /* Return an RTX indicating where the return address to the |
2826 | calling function can be found. */ | |
2827 | ||
2828 | rtx | |
59f3507d | 2829 | v850_return_addr (int count) |
a64761a3 DD |
2830 | { |
2831 | if (count != 0) | |
2832 | return const0_rtx; | |
2833 | ||
9e2f7ec7 | 2834 | return get_hard_reg_initial_val (Pmode, LINK_POINTER_REGNUM); |
a64761a3 | 2835 | } |
ae46c4e0 | 2836 | \f |
d6b5193b RS |
2837 | /* Implement TARGET_ASM_INIT_SECTIONS. */ |
2838 | ||
ae46c4e0 | 2839 | static void |
d6b5193b RS |
2840 | v850_asm_init_sections (void) |
2841 | { | |
2842 | rosdata_section | |
2843 | = get_unnamed_section (0, output_section_asm_op, | |
2844 | "\t.section .rosdata,\"a\""); | |
2845 | ||
2846 | rozdata_section | |
2847 | = get_unnamed_section (0, output_section_asm_op, | |
2848 | "\t.section .rozdata,\"a\""); | |
2849 | ||
2850 | tdata_section | |
2851 | = get_unnamed_section (SECTION_WRITE, output_section_asm_op, | |
2852 | "\t.section .tdata,\"aw\""); | |
2853 | ||
2854 | zdata_section | |
2855 | = get_unnamed_section (SECTION_WRITE, output_section_asm_op, | |
2856 | "\t.section .zdata,\"aw\""); | |
2857 | ||
2858 | zbss_section | |
2859 | = get_unnamed_section (SECTION_WRITE | SECTION_BSS, | |
2860 | output_section_asm_op, | |
2861 | "\t.section .zbss,\"aw\""); | |
2862 | } | |
2863 | ||
2864 | static section * | |
59f3507d NN |
2865 | v850_select_section (tree exp, |
2866 | int reloc ATTRIBUTE_UNUSED, | |
2867 | unsigned HOST_WIDE_INT align ATTRIBUTE_UNUSED) | |
ae46c4e0 RH |
2868 | { |
2869 | if (TREE_CODE (exp) == VAR_DECL) | |
2870 | { | |
2871 | int is_const; | |
2872 | if (!TREE_READONLY (exp) | |
2873 | || TREE_SIDE_EFFECTS (exp) | |
2874 | || !DECL_INITIAL (exp) | |
2875 | || (DECL_INITIAL (exp) != error_mark_node | |
2876 | && !TREE_CONSTANT (DECL_INITIAL (exp)))) | |
2877 | is_const = FALSE; | |
2878 | else | |
2879 | is_const = TRUE; | |
2880 | ||
2881 | switch (v850_get_data_area (exp)) | |
2882 | { | |
2883 | case DATA_AREA_ZDA: | |
d6b5193b | 2884 | return is_const ? rozdata_section : zdata_section; |
ae46c4e0 RH |
2885 | |
2886 | case DATA_AREA_TDA: | |
d6b5193b | 2887 | return tdata_section; |
ae46c4e0 RH |
2888 | |
2889 | case DATA_AREA_SDA: | |
d6b5193b | 2890 | return is_const ? rosdata_section : sdata_section; |
ae46c4e0 RH |
2891 | |
2892 | default: | |
d6b5193b | 2893 | return is_const ? readonly_data_section : data_section; |
ae46c4e0 RH |
2894 | } |
2895 | } | |
d6b5193b | 2896 | return readonly_data_section; |
ae46c4e0 | 2897 | } |
fb7bc7fb | 2898 | \f |
122603fa N |
2899 | /* Worker function for TARGET_FUNCTION_VALUE_REGNO_P. */ |
2900 | ||
2901 | static bool | |
2902 | v850_function_value_regno_p (const unsigned int regno) | |
2903 | { | |
1a31dcd0 | 2904 | return (regno == RV_REGNUM); |
122603fa N |
2905 | } |
2906 | ||
fb7bc7fb KH |
2907 | /* Worker function for TARGET_RETURN_IN_MEMORY. */ |
2908 | ||
2909 | static bool | |
586de218 | 2910 | v850_return_in_memory (const_tree type, const_tree fntype ATTRIBUTE_UNUSED) |
fb7bc7fb KH |
2911 | { |
2912 | /* Return values > 8 bytes in length in memory. */ | |
b84d824d NC |
2913 | return int_size_in_bytes (type) > 8 |
2914 | || TYPE_MODE (type) == BLKmode | |
2915 | /* With the rh850 ABI return all aggregates in memory. */ | |
2916 | || ((! TARGET_GCC_ABI) && AGGREGATE_TYPE_P (type)) | |
2917 | ; | |
fb7bc7fb | 2918 | } |
14a878f3 AS |
2919 | |
2920 | /* Worker function for TARGET_FUNCTION_VALUE. */ | |
2921 | ||
122603fa | 2922 | static rtx |
14a878f3 AS |
2923 | v850_function_value (const_tree valtype, |
2924 | const_tree fn_decl_or_type ATTRIBUTE_UNUSED, | |
2925 | bool outgoing ATTRIBUTE_UNUSED) | |
2926 | { | |
1a31dcd0 AS |
2927 | return gen_rtx_REG (TYPE_MODE (valtype), RV_REGNUM); |
2928 | } | |
2929 | ||
2930 | /* Implement TARGET_LIBCALL_VALUE. */ | |
2931 | ||
2932 | static rtx | |
2933 | v850_libcall_value (machine_mode mode, | |
2934 | const_rtx func ATTRIBUTE_UNUSED) | |
2935 | { | |
2936 | return gen_rtx_REG (mode, RV_REGNUM); | |
14a878f3 AS |
2937 | } |
2938 | ||
fb7bc7fb | 2939 | \f |
7b5cbb57 AS |
2940 | /* Worker function for TARGET_CAN_ELIMINATE. */ |
2941 | ||
e0c6c273 | 2942 | static bool |
7b5cbb57 AS |
2943 | v850_can_eliminate (const int from ATTRIBUTE_UNUSED, const int to) |
2944 | { | |
2945 | return (to == STACK_POINTER_REGNUM ? ! frame_pointer_needed : true); | |
2946 | } | |
2947 | ||
5efd84c5 NF |
2948 | /* Worker function for TARGET_CONDITIONAL_REGISTER_USAGE. |
2949 | ||
2950 | If TARGET_APP_REGS is not defined then add r2 and r5 to | |
2951 | the pool of fixed registers. See PR 14505. */ | |
2952 | ||
2953 | static void | |
2954 | v850_conditional_register_usage (void) | |
2955 | { | |
2956 | if (TARGET_APP_REGS) | |
2957 | { | |
2958 | fixed_regs[2] = 0; call_used_regs[2] = 0; | |
2959 | fixed_regs[5] = 0; call_used_regs[5] = 1; | |
2960 | } | |
2961 | } | |
e0c6c273 RH |
2962 | \f |
2963 | /* Worker function for TARGET_ASM_TRAMPOLINE_TEMPLATE. */ | |
2964 | ||
2965 | static void | |
2966 | v850_asm_trampoline_template (FILE *f) | |
2967 | { | |
2968 | fprintf (f, "\tjarl .+4,r12\n"); | |
2969 | fprintf (f, "\tld.w 12[r12],r20\n"); | |
2970 | fprintf (f, "\tld.w 16[r12],r12\n"); | |
2971 | fprintf (f, "\tjmp [r12]\n"); | |
2972 | fprintf (f, "\tnop\n"); | |
2973 | fprintf (f, "\t.long 0\n"); | |
2974 | fprintf (f, "\t.long 0\n"); | |
2975 | } | |
2976 | ||
2977 | /* Worker function for TARGET_TRAMPOLINE_INIT. */ | |
2978 | ||
2979 | static void | |
2980 | v850_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value) | |
2981 | { | |
2982 | rtx mem, fnaddr = XEXP (DECL_RTL (fndecl), 0); | |
2983 | ||
2984 | emit_block_move (m_tramp, assemble_trampoline_template (), | |
2985 | GEN_INT (TRAMPOLINE_SIZE), BLOCK_OP_NORMAL); | |
2986 | ||
2987 | mem = adjust_address (m_tramp, SImode, 16); | |
2988 | emit_move_insn (mem, chain_value); | |
2989 | mem = adjust_address (m_tramp, SImode, 20); | |
2990 | emit_move_insn (mem, fnaddr); | |
2991 | } | |
223a9d64 N |
2992 | |
2993 | static int | |
2994 | v850_issue_rate (void) | |
2995 | { | |
dbdbd982 | 2996 | return (TARGET_V850E2_UP ? 2 : 1); |
223a9d64 | 2997 | } |
1a627b35 RS |
2998 | |
2999 | /* Implement TARGET_LEGITIMATE_CONSTANT_P. */ | |
3000 | ||
3001 | static bool | |
ef4bddc2 | 3002 | v850_legitimate_constant_p (machine_mode mode ATTRIBUTE_UNUSED, rtx x) |
1a627b35 RS |
3003 | { |
3004 | return (GET_CODE (x) == CONST_DOUBLE | |
3005 | || !(GET_CODE (x) == CONST | |
3006 | && GET_CODE (XEXP (x, 0)) == PLUS | |
3007 | && GET_CODE (XEXP (XEXP (x, 0), 0)) == SYMBOL_REF | |
3008 | && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT | |
3009 | && !CONST_OK_FOR_K (INTVAL (XEXP (XEXP (x, 0), 1))))); | |
3010 | } | |
1dcad079 | 3011 | |
b3ba1c09 AS |
3012 | /* Helper function for `v850_legitimate_address_p'. */ |
3013 | ||
3014 | static bool | |
3015 | v850_reg_ok_for_base_p (const_rtx reg, bool strict_p) | |
3016 | { | |
3017 | if (strict_p) | |
3018 | { | |
3019 | return REGNO_OK_FOR_BASE_P (REGNO (reg)); | |
3020 | } else { | |
3021 | return true; | |
3022 | } | |
3023 | } | |
3024 | ||
3025 | /* Accept either REG or SUBREG where a register is valid. */ | |
3026 | ||
3027 | static bool | |
3028 | v850_rtx_ok_for_base_p (const_rtx x, bool strict_p) | |
3029 | { | |
3030 | return ((REG_P (x) && v850_reg_ok_for_base_p (x, strict_p)) | |
3031 | || (SUBREG_P (x) && REG_P (SUBREG_REG (x)) | |
3032 | && v850_reg_ok_for_base_p (SUBREG_REG (x), strict_p))); | |
3033 | } | |
3034 | ||
3035 | /* Implement TARGET_LEGITIMATE_ADDRESS_P. */ | |
3036 | ||
3037 | static bool | |
3038 | v850_legitimate_address_p (machine_mode mode, rtx x, bool strict_p, | |
3039 | addr_space_t as ATTRIBUTE_UNUSED) | |
3040 | { | |
3041 | gcc_assert (ADDR_SPACE_GENERIC_P (as)); | |
3042 | ||
3043 | if (v850_rtx_ok_for_base_p (x, strict_p)) | |
3044 | return true; | |
3045 | if (CONSTANT_ADDRESS_P (x) | |
3046 | && (mode == QImode || INTVAL (x) % 2 == 0) | |
3047 | && (GET_MODE_SIZE (mode) <= 4 || INTVAL (x) % 4 == 0)) | |
3048 | return true; | |
3049 | if (GET_CODE (x) == LO_SUM | |
3050 | && REG_P (XEXP (x, 0)) | |
3051 | && v850_reg_ok_for_base_p (XEXP (x, 0), strict_p) | |
3052 | && CONSTANT_P (XEXP (x, 1)) | |
3053 | && (!CONST_INT_P (XEXP (x, 1)) | |
3054 | || ((mode == QImode || INTVAL (XEXP (x, 1)) % 2 == 0) | |
3055 | && constraint_satisfied_p (XEXP (x, 1), CONSTRAINT_K))) | |
3056 | && GET_MODE_SIZE (mode) <= GET_MODE_SIZE (word_mode)) | |
3057 | return true; | |
3058 | if (special_symbolref_operand (x, mode) | |
3059 | && (GET_MODE_SIZE (mode) <= GET_MODE_SIZE (word_mode))) | |
3060 | return true; | |
3061 | if (GET_CODE (x) == PLUS | |
3062 | && v850_rtx_ok_for_base_p (XEXP (x, 0), strict_p) | |
bc5e6ab6 JL |
3063 | && (constraint_satisfied_p (XEXP (x, 1), CONSTRAINT_K) |
3064 | || (TARGET_V850E2V3_UP | |
3065 | && (mode == SImode || mode == HImode || mode == QImode) | |
3066 | && constraint_satisfied_p (XEXP (x, 1), CONSTRAINT_W))) | |
b3ba1c09 AS |
3067 | && ((mode == QImode || INTVAL (XEXP (x, 1)) % 2 == 0) |
3068 | && CONST_OK_FOR_K (INTVAL (XEXP (x, 1)) | |
3069 | + (GET_MODE_NUNITS (mode) * UNITS_PER_WORD)))) | |
3070 | return true; | |
3071 | ||
3072 | return false; | |
3073 | } | |
3074 | ||
1dcad079 | 3075 | static int |
ef4bddc2 | 3076 | v850_memory_move_cost (machine_mode mode, |
0ccef3d2 NC |
3077 | reg_class_t reg_class ATTRIBUTE_UNUSED, |
3078 | bool in) | |
1dcad079 NC |
3079 | { |
3080 | switch (GET_MODE_SIZE (mode)) | |
3081 | { | |
3082 | case 0: | |
3083 | return in ? 24 : 8; | |
3084 | case 1: | |
3085 | case 2: | |
3086 | case 3: | |
3087 | case 4: | |
3088 | return in ? 6 : 2; | |
3089 | default: | |
3090 | return (GET_MODE_SIZE (mode) / 2) * (in ? 3 : 1); | |
3091 | } | |
3092 | } | |
dbdbd982 NC |
3093 | |
3094 | int | |
5dc2bb45 | 3095 | v850_adjust_insn_length (rtx_insn *insn, int length) |
dbdbd982 NC |
3096 | { |
3097 | if (TARGET_V850E3V5_UP) | |
3098 | { | |
3099 | if (CALL_P (insn)) | |
3100 | { | |
3101 | if (TARGET_LONG_CALLS) | |
3102 | { | |
3103 | /* call_internal_long, call_value_internal_long. */ | |
3104 | if (length == 8) | |
3105 | length = 4; | |
3106 | if (length == 16) | |
3107 | length = 10; | |
3108 | } | |
3109 | else | |
3110 | { | |
3111 | /* call_internal_short, call_value_internal_short. */ | |
3112 | if (length == 8) | |
3113 | length = 4; | |
3114 | } | |
3115 | } | |
3116 | } | |
3117 | return length; | |
3118 | } | |
122603fa N |
3119 | \f |
3120 | /* V850 specific attributes. */ | |
3121 | ||
3122 | static const struct attribute_spec v850_attribute_table[] = | |
3123 | { | |
4849deb1 JJ |
3124 | /* { name, min_len, max_len, decl_req, type_req, fn_type_req, |
3125 | affects_type_identity, handler, exclude } */ | |
3126 | { "interrupt_handler", 0, 0, true, false, false, false, | |
3127 | v850_handle_interrupt_attribute, NULL }, | |
3128 | { "interrupt", 0, 0, true, false, false, false, | |
3129 | v850_handle_interrupt_attribute, NULL }, | |
3130 | { "sda", 0, 0, true, false, false, false, | |
3131 | v850_handle_data_area_attribute, NULL }, | |
3132 | { "tda", 0, 0, true, false, false, false, | |
3133 | v850_handle_data_area_attribute, NULL }, | |
3134 | { "zda", 0, 0, true, false, false, false, | |
3135 | v850_handle_data_area_attribute, NULL }, | |
3136 | { NULL, 0, 0, false, false, false, false, NULL, NULL } | |
122603fa N |
3137 | }; |
3138 | \f | |
b84d824d NC |
3139 | static void |
3140 | v850_option_override (void) | |
b12b5029 | 3141 | { |
b84d824d NC |
3142 | if (flag_exceptions || flag_non_call_exceptions) |
3143 | flag_omit_frame_pointer = 0; | |
b12b5029 | 3144 | |
b84d824d NC |
3145 | /* The RH850 ABI does not (currently) support the use of the CALLT instruction. */ |
3146 | if (! TARGET_GCC_ABI) | |
3147 | target_flags |= MASK_DISABLE_CALLT; | |
3148 | } | |
b12b5029 | 3149 | \f |
dbdbd982 NC |
3150 | const char * |
3151 | v850_gen_movdi (rtx * operands) | |
3152 | { | |
3153 | if (REG_P (operands[0])) | |
3154 | { | |
3155 | if (REG_P (operands[1])) | |
3156 | { | |
3157 | if (REGNO (operands[0]) == (REGNO (operands[1]) - 1)) | |
3158 | return "mov %1, %0; mov %R1, %R0"; | |
3159 | ||
3160 | return "mov %R1, %R0; mov %1, %0"; | |
3161 | } | |
3162 | ||
3163 | if (MEM_P (operands[1])) | |
3164 | { | |
3165 | if (REGNO (operands[0]) & 1) | |
3166 | /* Use two load word instructions to synthesise a load double. */ | |
3167 | return "ld.w %1, %0 ; ld.w %R1, %R0" ; | |
3168 | ||
3169 | return "ld.dw %1, %0"; | |
3170 | } | |
3171 | ||
3172 | return "mov %1, %0; mov %R1, %R0"; | |
3173 | } | |
3174 | ||
3175 | gcc_assert (REG_P (operands[1])); | |
3176 | ||
3177 | if (REGNO (operands[1]) & 1) | |
3178 | /* Use two store word instructions to synthesise a store double. */ | |
3179 | return "st.w %1, %0 ; st.w %R1, %R0 "; | |
3180 | ||
3181 | return "st.dw %1, %0"; | |
3182 | } | |
f939c3e6 RS |
3183 | |
3184 | /* Implement TARGET_HARD_REGNO_MODE_OK. */ | |
3185 | ||
3186 | static bool | |
3187 | v850_hard_regno_mode_ok (unsigned int regno, machine_mode mode) | |
3188 | { | |
3189 | return GET_MODE_SIZE (mode) <= 4 || ((regno & 1) == 0 && regno != 0); | |
3190 | } | |
99e1629f RS |
3191 | |
3192 | /* Implement TARGET_MODES_TIEABLE_P. */ | |
3193 | ||
3194 | static bool | |
3195 | v850_modes_tieable_p (machine_mode mode1, machine_mode mode2) | |
3196 | { | |
3197 | return (mode1 == mode2 | |
3198 | || (GET_MODE_SIZE (mode1) <= 4 && GET_MODE_SIZE (mode2) <= 4)); | |
3199 | } | |
dbdbd982 | 3200 | \f |
122603fa | 3201 | /* Initialize the GCC target structure. */ |
1dcad079 | 3202 | |
b84d824d NC |
3203 | #undef TARGET_OPTION_OVERRIDE |
3204 | #define TARGET_OPTION_OVERRIDE v850_option_override | |
3205 | ||
1dcad079 | 3206 | #undef TARGET_MEMORY_MOVE_COST |
b84d824d | 3207 | #define TARGET_MEMORY_MOVE_COST v850_memory_move_cost |
1dcad079 | 3208 | |
122603fa N |
3209 | #undef TARGET_ASM_ALIGNED_HI_OP |
3210 | #define TARGET_ASM_ALIGNED_HI_OP "\t.hword\t" | |
3211 | ||
3212 | #undef TARGET_PRINT_OPERAND | |
b84d824d | 3213 | #define TARGET_PRINT_OPERAND v850_print_operand |
122603fa | 3214 | #undef TARGET_PRINT_OPERAND_ADDRESS |
b84d824d | 3215 | #define TARGET_PRINT_OPERAND_ADDRESS v850_print_operand_address |
122603fa | 3216 | #undef TARGET_PRINT_OPERAND_PUNCT_VALID_P |
b84d824d | 3217 | #define TARGET_PRINT_OPERAND_PUNCT_VALID_P v850_print_operand_punct_valid_p |
122603fa | 3218 | |
24da2019 AS |
3219 | #undef TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA |
3220 | #define TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA v850_output_addr_const_extra | |
3221 | ||
122603fa N |
3222 | #undef TARGET_ATTRIBUTE_TABLE |
3223 | #define TARGET_ATTRIBUTE_TABLE v850_attribute_table | |
3224 | ||
3225 | #undef TARGET_INSERT_ATTRIBUTES | |
3226 | #define TARGET_INSERT_ATTRIBUTES v850_insert_attributes | |
3227 | ||
3228 | #undef TARGET_ASM_SELECT_SECTION | |
3229 | #define TARGET_ASM_SELECT_SECTION v850_select_section | |
3230 | ||
3231 | /* The assembler supports switchable .bss sections, but | |
3232 | v850_select_section doesn't yet make use of them. */ | |
3233 | #undef TARGET_HAVE_SWITCHABLE_BSS_SECTIONS | |
3234 | #define TARGET_HAVE_SWITCHABLE_BSS_SECTIONS false | |
3235 | ||
3236 | #undef TARGET_ENCODE_SECTION_INFO | |
3237 | #define TARGET_ENCODE_SECTION_INFO v850_encode_section_info | |
3238 | ||
3239 | #undef TARGET_ASM_FILE_START_FILE_DIRECTIVE | |
3240 | #define TARGET_ASM_FILE_START_FILE_DIRECTIVE true | |
3241 | ||
122603fa N |
3242 | #undef TARGET_RTX_COSTS |
3243 | #define TARGET_RTX_COSTS v850_rtx_costs | |
3244 | ||
3245 | #undef TARGET_ADDRESS_COST | |
b413068c | 3246 | #define TARGET_ADDRESS_COST hook_int_rtx_mode_as_bool_0 |
122603fa N |
3247 | |
3248 | #undef TARGET_MACHINE_DEPENDENT_REORG | |
3249 | #define TARGET_MACHINE_DEPENDENT_REORG v850_reorg | |
3250 | ||
3251 | #undef TARGET_SCHED_ISSUE_RATE | |
3252 | #define TARGET_SCHED_ISSUE_RATE v850_issue_rate | |
3253 | ||
3254 | #undef TARGET_FUNCTION_VALUE_REGNO_P | |
3255 | #define TARGET_FUNCTION_VALUE_REGNO_P v850_function_value_regno_p | |
3256 | #undef TARGET_FUNCTION_VALUE | |
3257 | #define TARGET_FUNCTION_VALUE v850_function_value | |
1a31dcd0 AS |
3258 | #undef TARGET_LIBCALL_VALUE |
3259 | #define TARGET_LIBCALL_VALUE v850_libcall_value | |
122603fa N |
3260 | |
3261 | #undef TARGET_PROMOTE_PROTOTYPES | |
3262 | #define TARGET_PROMOTE_PROTOTYPES hook_bool_const_tree_true | |
3263 | ||
3264 | #undef TARGET_RETURN_IN_MEMORY | |
3265 | #define TARGET_RETURN_IN_MEMORY v850_return_in_memory | |
3266 | ||
3267 | #undef TARGET_PASS_BY_REFERENCE | |
3268 | #define TARGET_PASS_BY_REFERENCE v850_pass_by_reference | |
3269 | ||
3270 | #undef TARGET_CALLEE_COPIES | |
3271 | #define TARGET_CALLEE_COPIES hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true | |
3272 | ||
122603fa N |
3273 | #undef TARGET_ARG_PARTIAL_BYTES |
3274 | #define TARGET_ARG_PARTIAL_BYTES v850_arg_partial_bytes | |
3275 | ||
3276 | #undef TARGET_FUNCTION_ARG | |
3277 | #define TARGET_FUNCTION_ARG v850_function_arg | |
3278 | ||
3279 | #undef TARGET_FUNCTION_ARG_ADVANCE | |
3280 | #define TARGET_FUNCTION_ARG_ADVANCE v850_function_arg_advance | |
3281 | ||
3282 | #undef TARGET_CAN_ELIMINATE | |
3283 | #define TARGET_CAN_ELIMINATE v850_can_eliminate | |
3284 | ||
5efd84c5 NF |
3285 | #undef TARGET_CONDITIONAL_REGISTER_USAGE |
3286 | #define TARGET_CONDITIONAL_REGISTER_USAGE v850_conditional_register_usage | |
3287 | ||
122603fa N |
3288 | #undef TARGET_ASM_TRAMPOLINE_TEMPLATE |
3289 | #define TARGET_ASM_TRAMPOLINE_TEMPLATE v850_asm_trampoline_template | |
3290 | #undef TARGET_TRAMPOLINE_INIT | |
3291 | #define TARGET_TRAMPOLINE_INIT v850_trampoline_init | |
3292 | ||
1a627b35 RS |
3293 | #undef TARGET_LEGITIMATE_CONSTANT_P |
3294 | #define TARGET_LEGITIMATE_CONSTANT_P v850_legitimate_constant_p | |
3295 | ||
b3ba1c09 AS |
3296 | #undef TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P |
3297 | #define TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P v850_legitimate_address_p | |
3298 | ||
1d0216c8 RS |
3299 | #undef TARGET_CAN_USE_DOLOOP_P |
3300 | #define TARGET_CAN_USE_DOLOOP_P can_use_doloop_if_innermost | |
3301 | ||
f939c3e6 RS |
3302 | #undef TARGET_HARD_REGNO_MODE_OK |
3303 | #define TARGET_HARD_REGNO_MODE_OK v850_hard_regno_mode_ok | |
3304 | ||
99e1629f RS |
3305 | #undef TARGET_MODES_TIEABLE_P |
3306 | #define TARGET_MODES_TIEABLE_P v850_modes_tieable_p | |
3307 | ||
1ec0eb08 JL |
3308 | #undef TARGET_FLAGS_REGNUM |
3309 | #define TARGET_FLAGS_REGNUM 32 | |
3310 | ||
007b11a5 NC |
3311 | #undef TARGET_HAVE_SPECULATION_SAFE_VALUE |
3312 | #define TARGET_HAVE_SPECULATION_SAFE_VALUE speculation_safe_value_not_needed | |
3313 | ||
122603fa N |
3314 | struct gcc_target targetm = TARGET_INITIALIZER; |
3315 | ||
d6b5193b | 3316 | #include "gt-v850.h" |