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ae180d84 | 1 | /* Subroutines for insn-output.c for NEC V850 series |
6fb5fa3c | 2 | Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, |
b12b5029 | 3 | 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. |
ae180d84 JL |
4 | Contributed by Jeff Law (law@cygnus.com). |
5 | ||
301ee2f3 | 6 | This file is part of GCC. |
ae180d84 | 7 | |
301ee2f3 | 8 | GCC is free software; you can redistribute it and/or modify it |
8376061d | 9 | under the terms of the GNU General Public License as published by |
2f83c7d6 | 10 | the Free Software Foundation; either version 3, or (at your option) |
8376061d | 11 | any later version. |
ae180d84 | 12 | |
301ee2f3 | 13 | GCC is distributed in the hope that it will be useful, but WITHOUT |
8376061d CM |
14 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | for more details. | |
ae180d84 | 17 | |
8376061d | 18 | You should have received a copy of the GNU General Public License |
2f83c7d6 NC |
19 | along with GCC; see the file COPYING3. If not see |
20 | <http://www.gnu.org/licenses/>. */ | |
ae180d84 | 21 | |
ab87f8c8 | 22 | #include "config.h" |
c5c76735 | 23 | #include "system.h" |
4977bab6 ZW |
24 | #include "coretypes.h" |
25 | #include "tm.h" | |
3ce15347 | 26 | #include "tree.h" |
ae180d84 JL |
27 | #include "rtl.h" |
28 | #include "regs.h" | |
29 | #include "hard-reg-set.h" | |
ae180d84 JL |
30 | #include "insn-config.h" |
31 | #include "conditions.h" | |
ae180d84 JL |
32 | #include "output.h" |
33 | #include "insn-attr.h" | |
34 | #include "flags.h" | |
35 | #include "recog.h" | |
36 | #include "expr.h" | |
bf6bb899 | 37 | #include "function.h" |
718f9c0f | 38 | #include "diagnostic-core.h" |
c3edd394 | 39 | #include "ggc.h" |
8b97c5f8 | 40 | #include "tm_p.h" |
672a6f42 NB |
41 | #include "target.h" |
42 | #include "target-def.h" | |
90745823 | 43 | #include "df.h" |
96e45421 | 44 | #include "opts.h" |
3ce15347 NC |
45 | |
46 | #ifndef streq | |
47 | #define streq(a,b) (strcmp (a, b) == 0) | |
48 | #endif | |
49 | ||
11d259f0 | 50 | static void v850_print_operand_address (FILE *, rtx); |
ae180d84 | 51 | |
c3edd394 NC |
52 | /* Names of the various data areas used on the v850. */ |
53 | tree GHS_default_section_names [(int) COUNT_OF_GHS_SECTION_KINDS]; | |
54 | tree GHS_current_section_names [(int) COUNT_OF_GHS_SECTION_KINDS]; | |
55 | ||
56 | /* Track the current data area set by the data area pragma (which | |
57 | can be nested). Tested by check_default_data_area. */ | |
58 | data_area_stack_element * data_area_stack = NULL; | |
59 | ||
ae180d84 | 60 | /* True if we don't need to check any more if the current |
c3edd394 | 61 | function is an interrupt handler. */ |
ae180d84 JL |
62 | static int v850_interrupt_cache_p = FALSE; |
63 | ||
223a9d64 N |
64 | rtx v850_compare_op0, v850_compare_op1; |
65 | ||
ae180d84 JL |
66 | /* Whether current function is an interrupt handler. */ |
67 | static int v850_interrupt_p = FALSE; | |
d6b5193b | 68 | |
122603fa N |
69 | static GTY(()) section * rosdata_section; |
70 | static GTY(()) section * rozdata_section; | |
71 | static GTY(()) section * tdata_section; | |
72 | static GTY(()) section * zdata_section; | |
73 | static GTY(()) section * zbss_section; | |
ae180d84 | 74 | \f |
223a9d64 N |
75 | /* Handle the TARGET_PASS_BY_REFERENCE target hook. |
76 | Specify whether to pass the argument by reference. */ | |
77 | ||
8cd5a4e0 | 78 | static bool |
d5cc9181 | 79 | v850_pass_by_reference (cumulative_args_t cum ATTRIBUTE_UNUSED, |
586de218 | 80 | enum machine_mode mode, const_tree type, |
8cd5a4e0 RH |
81 | bool named ATTRIBUTE_UNUSED) |
82 | { | |
83 | unsigned HOST_WIDE_INT size; | |
84 | ||
85 | if (type) | |
86 | size = int_size_in_bytes (type); | |
87 | else | |
88 | size = GET_MODE_SIZE (mode); | |
89 | ||
90 | return size > 8; | |
91 | } | |
ae180d84 | 92 | |
223a9d64 N |
93 | /* Implementing the Varargs Macros. */ |
94 | ||
95 | static bool | |
d5cc9181 | 96 | v850_strict_argument_naming (cumulative_args_t ca ATTRIBUTE_UNUSED) |
223a9d64 N |
97 | { |
98 | return !TARGET_GHS ? true : false; | |
99 | } | |
100 | ||
356aaf8b NC |
101 | /* Return an RTX to represent where an argument with mode MODE |
102 | and type TYPE will be passed to a function. If the result | |
103 | is NULL_RTX, the argument will be pushed. */ | |
ae180d84 | 104 | |
74a3d2c3 | 105 | static rtx |
d5cc9181 | 106 | v850_function_arg (cumulative_args_t cum_v, enum machine_mode mode, |
74a3d2c3 | 107 | const_tree type, bool named) |
ae180d84 | 108 | { |
d5cc9181 | 109 | CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); |
356aaf8b | 110 | rtx result = NULL_RTX; |
ae180d84 JL |
111 | int size, align; |
112 | ||
223a9d64 | 113 | if (!named) |
ae180d84 JL |
114 | return NULL_RTX; |
115 | ||
116 | if (mode == BLKmode) | |
117 | size = int_size_in_bytes (type); | |
118 | else | |
119 | size = GET_MODE_SIZE (mode); | |
120 | ||
223a9d64 N |
121 | size = (size + UNITS_PER_WORD -1) & ~(UNITS_PER_WORD -1); |
122 | ||
b4378319 | 123 | if (size < 1) |
356aaf8b NC |
124 | { |
125 | /* Once we have stopped using argument registers, do not start up again. */ | |
126 | cum->nbytes = 4 * UNITS_PER_WORD; | |
127 | return NULL_RTX; | |
128 | } | |
b4378319 | 129 | |
223a9d64 | 130 | if (size <= UNITS_PER_WORD && type) |
ae180d84 JL |
131 | align = TYPE_ALIGN (type) / BITS_PER_UNIT; |
132 | else | |
133 | align = size; | |
134 | ||
135 | cum->nbytes = (cum->nbytes + align - 1) &~(align - 1); | |
136 | ||
137 | if (cum->nbytes > 4 * UNITS_PER_WORD) | |
356aaf8b | 138 | return NULL_RTX; |
ae180d84 JL |
139 | |
140 | if (type == NULL_TREE | |
141 | && cum->nbytes + size > 4 * UNITS_PER_WORD) | |
356aaf8b | 142 | return NULL_RTX; |
ae180d84 JL |
143 | |
144 | switch (cum->nbytes / UNITS_PER_WORD) | |
145 | { | |
146 | case 0: | |
c5c76735 | 147 | result = gen_rtx_REG (mode, 6); |
ae180d84 JL |
148 | break; |
149 | case 1: | |
c5c76735 | 150 | result = gen_rtx_REG (mode, 7); |
ae180d84 JL |
151 | break; |
152 | case 2: | |
c5c76735 | 153 | result = gen_rtx_REG (mode, 8); |
ae180d84 JL |
154 | break; |
155 | case 3: | |
c5c76735 | 156 | result = gen_rtx_REG (mode, 9); |
ae180d84 JL |
157 | break; |
158 | default: | |
356aaf8b | 159 | result = NULL_RTX; |
ae180d84 JL |
160 | } |
161 | ||
162 | return result; | |
163 | } | |
164 | ||
78a52f11 | 165 | /* Return the number of bytes which must be put into registers |
ae180d84 | 166 | for values which are part in registers and part in memory. */ |
78a52f11 | 167 | static int |
d5cc9181 | 168 | v850_arg_partial_bytes (cumulative_args_t cum_v, enum machine_mode mode, |
78a52f11 | 169 | tree type, bool named) |
ae180d84 | 170 | { |
d5cc9181 | 171 | CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); |
ae180d84 JL |
172 | int size, align; |
173 | ||
174 | if (TARGET_GHS && !named) | |
175 | return 0; | |
176 | ||
177 | if (mode == BLKmode) | |
178 | size = int_size_in_bytes (type); | |
179 | else | |
180 | size = GET_MODE_SIZE (mode); | |
181 | ||
356aaf8b NC |
182 | if (size < 1) |
183 | size = 1; | |
184 | ||
ae180d84 JL |
185 | if (type) |
186 | align = TYPE_ALIGN (type) / BITS_PER_UNIT; | |
187 | else | |
188 | align = size; | |
189 | ||
356aaf8b | 190 | cum->nbytes = (cum->nbytes + align - 1) & ~ (align - 1); |
ae180d84 JL |
191 | |
192 | if (cum->nbytes > 4 * UNITS_PER_WORD) | |
193 | return 0; | |
194 | ||
195 | if (cum->nbytes + size <= 4 * UNITS_PER_WORD) | |
196 | return 0; | |
197 | ||
198 | if (type == NULL_TREE | |
199 | && cum->nbytes + size > 4 * UNITS_PER_WORD) | |
200 | return 0; | |
201 | ||
78a52f11 | 202 | return 4 * UNITS_PER_WORD - cum->nbytes; |
ae180d84 JL |
203 | } |
204 | ||
74a3d2c3 NF |
205 | /* Update the data in CUM to advance over an argument |
206 | of mode MODE and data type TYPE. | |
207 | (TYPE is null for libcalls where that information may not be available.) */ | |
208 | ||
209 | static void | |
d5cc9181 | 210 | v850_function_arg_advance (cumulative_args_t cum_v, enum machine_mode mode, |
74a3d2c3 NF |
211 | const_tree type, bool named ATTRIBUTE_UNUSED) |
212 | { | |
d5cc9181 JR |
213 | CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); |
214 | ||
74a3d2c3 NF |
215 | cum->nbytes += (((type && int_size_in_bytes (type) > 8 |
216 | ? GET_MODE_SIZE (Pmode) | |
217 | : (mode != BLKmode | |
218 | ? GET_MODE_SIZE (mode) | |
219 | : int_size_in_bytes (type))) + UNITS_PER_WORD - 1) | |
220 | & -UNITS_PER_WORD); | |
221 | } | |
222 | ||
ae180d84 JL |
223 | /* Return the high and low words of a CONST_DOUBLE */ |
224 | ||
225 | static void | |
59f3507d | 226 | const_double_split (rtx x, HOST_WIDE_INT * p_high, HOST_WIDE_INT * p_low) |
ae180d84 JL |
227 | { |
228 | if (GET_CODE (x) == CONST_DOUBLE) | |
229 | { | |
230 | long t[2]; | |
231 | REAL_VALUE_TYPE rv; | |
232 | ||
233 | switch (GET_MODE (x)) | |
234 | { | |
235 | case DFmode: | |
236 | REAL_VALUE_FROM_CONST_DOUBLE (rv, x); | |
237 | REAL_VALUE_TO_TARGET_DOUBLE (rv, t); | |
238 | *p_high = t[1]; /* since v850 is little endian */ | |
239 | *p_low = t[0]; /* high is second word */ | |
240 | return; | |
241 | ||
242 | case SFmode: | |
243 | REAL_VALUE_FROM_CONST_DOUBLE (rv, x); | |
244 | REAL_VALUE_TO_TARGET_SINGLE (rv, *p_high); | |
245 | *p_low = 0; | |
246 | return; | |
247 | ||
248 | case VOIDmode: | |
249 | case DImode: | |
250 | *p_high = CONST_DOUBLE_HIGH (x); | |
251 | *p_low = CONST_DOUBLE_LOW (x); | |
252 | return; | |
3ce15347 NC |
253 | |
254 | default: | |
255 | break; | |
ae180d84 JL |
256 | } |
257 | } | |
258 | ||
259 | fatal_insn ("const_double_split got a bad insn:", x); | |
260 | } | |
261 | ||
262 | \f | |
263 | /* Return the cost of the rtx R with code CODE. */ | |
264 | ||
265 | static int | |
59f3507d | 266 | const_costs_int (HOST_WIDE_INT value, int zero_cost) |
ae180d84 JL |
267 | { |
268 | if (CONST_OK_FOR_I (value)) | |
269 | return zero_cost; | |
270 | else if (CONST_OK_FOR_J (value)) | |
271 | return 1; | |
272 | else if (CONST_OK_FOR_K (value)) | |
273 | return 2; | |
274 | else | |
275 | return 4; | |
276 | } | |
277 | ||
3c50106f | 278 | static int |
59f3507d | 279 | const_costs (rtx r, enum rtx_code c) |
ae180d84 JL |
280 | { |
281 | HOST_WIDE_INT high, low; | |
282 | ||
283 | switch (c) | |
284 | { | |
285 | case CONST_INT: | |
286 | return const_costs_int (INTVAL (r), 0); | |
287 | ||
288 | case CONST_DOUBLE: | |
289 | const_double_split (r, &high, &low); | |
290 | if (GET_MODE (r) == SFmode) | |
291 | return const_costs_int (high, 1); | |
292 | else | |
293 | return const_costs_int (high, 1) + const_costs_int (low, 1); | |
294 | ||
295 | case SYMBOL_REF: | |
296 | case LABEL_REF: | |
297 | case CONST: | |
298 | return 2; | |
299 | ||
300 | case HIGH: | |
301 | return 1; | |
302 | ||
303 | default: | |
304 | return 4; | |
305 | } | |
306 | } | |
307 | ||
3c50106f | 308 | static bool |
59f3507d | 309 | v850_rtx_costs (rtx x, |
5a82ecd9 | 310 | int codearg, |
59f3507d | 311 | int outer_code ATTRIBUTE_UNUSED, |
68f932c4 | 312 | int opno ATTRIBUTE_UNUSED, |
f40751dd | 313 | int * total, bool speed) |
3c50106f | 314 | { |
5a82ecd9 ILT |
315 | enum rtx_code code = (enum rtx_code) codearg; |
316 | ||
3c50106f RH |
317 | switch (code) |
318 | { | |
319 | case CONST_INT: | |
320 | case CONST_DOUBLE: | |
321 | case CONST: | |
322 | case SYMBOL_REF: | |
323 | case LABEL_REF: | |
324 | *total = COSTS_N_INSNS (const_costs (x, code)); | |
325 | return true; | |
326 | ||
327 | case MOD: | |
328 | case DIV: | |
329 | case UMOD: | |
330 | case UDIV: | |
f40751dd | 331 | if (TARGET_V850E && !speed) |
3c50106f RH |
332 | *total = 6; |
333 | else | |
334 | *total = 60; | |
335 | return true; | |
336 | ||
337 | case MULT: | |
338 | if (TARGET_V850E | |
339 | && ( GET_MODE (x) == SImode | |
340 | || GET_MODE (x) == HImode | |
341 | || GET_MODE (x) == QImode)) | |
342 | { | |
343 | if (GET_CODE (XEXP (x, 1)) == REG) | |
344 | *total = 4; | |
345 | else if (GET_CODE (XEXP (x, 1)) == CONST_INT) | |
346 | { | |
347 | if (CONST_OK_FOR_O (INTVAL (XEXP (x, 1)))) | |
348 | *total = 6; | |
349 | else if (CONST_OK_FOR_K (INTVAL (XEXP (x, 1)))) | |
350 | *total = 10; | |
351 | } | |
352 | } | |
353 | else | |
354 | *total = 20; | |
355 | return true; | |
356 | ||
f90b7a5a PB |
357 | case ZERO_EXTRACT: |
358 | if (outer_code == COMPARE) | |
359 | *total = 0; | |
360 | return false; | |
361 | ||
3c50106f RH |
362 | default: |
363 | return false; | |
364 | } | |
365 | } | |
ae180d84 JL |
366 | \f |
367 | /* Print operand X using operand code CODE to assembly language output file | |
368 | FILE. */ | |
369 | ||
11d259f0 NF |
370 | static void |
371 | v850_print_operand (FILE * file, rtx x, int code) | |
ae180d84 JL |
372 | { |
373 | HOST_WIDE_INT high, low; | |
374 | ||
375 | switch (code) | |
376 | { | |
5ca2111f | 377 | case 'c': |
b12b5029 | 378 | /* We use 'c' operands with symbols for .vtinherit. */ |
5ca2111f CM |
379 | if (GET_CODE (x) == SYMBOL_REF) |
380 | { | |
381 | output_addr_const(file, x); | |
382 | break; | |
383 | } | |
b12b5029 | 384 | /* Fall through. */ |
ae180d84 JL |
385 | case 'b': |
386 | case 'B': | |
1933ec7e JW |
387 | case 'C': |
388 | switch ((code == 'B' || code == 'C') | |
389 | ? reverse_condition (GET_CODE (x)) : GET_CODE (x)) | |
ae180d84 JL |
390 | { |
391 | case NE: | |
1933ec7e JW |
392 | if (code == 'c' || code == 'C') |
393 | fprintf (file, "nz"); | |
394 | else | |
395 | fprintf (file, "ne"); | |
ae180d84 JL |
396 | break; |
397 | case EQ: | |
1933ec7e JW |
398 | if (code == 'c' || code == 'C') |
399 | fprintf (file, "z"); | |
400 | else | |
401 | fprintf (file, "e"); | |
ae180d84 JL |
402 | break; |
403 | case GE: | |
1933ec7e | 404 | fprintf (file, "ge"); |
ae180d84 JL |
405 | break; |
406 | case GT: | |
1933ec7e | 407 | fprintf (file, "gt"); |
ae180d84 JL |
408 | break; |
409 | case LE: | |
1933ec7e | 410 | fprintf (file, "le"); |
ae180d84 JL |
411 | break; |
412 | case LT: | |
1933ec7e | 413 | fprintf (file, "lt"); |
ae180d84 JL |
414 | break; |
415 | case GEU: | |
1933ec7e | 416 | fprintf (file, "nl"); |
ae180d84 JL |
417 | break; |
418 | case GTU: | |
1933ec7e | 419 | fprintf (file, "h"); |
ae180d84 JL |
420 | break; |
421 | case LEU: | |
1933ec7e | 422 | fprintf (file, "nh"); |
ae180d84 JL |
423 | break; |
424 | case LTU: | |
1933ec7e | 425 | fprintf (file, "l"); |
ae180d84 JL |
426 | break; |
427 | default: | |
f2f84cba | 428 | gcc_unreachable (); |
ae180d84 JL |
429 | } |
430 | break; | |
b12b5029 | 431 | case 'F': /* High word of CONST_DOUBLE. */ |
f2f84cba | 432 | switch (GET_CODE (x)) |
ae180d84 | 433 | { |
f2f84cba NS |
434 | case CONST_INT: |
435 | fprintf (file, "%d", (INTVAL (x) >= 0) ? 0 : -1); | |
436 | break; | |
437 | ||
438 | case CONST_DOUBLE: | |
ae180d84 JL |
439 | const_double_split (x, &high, &low); |
440 | fprintf (file, "%ld", (long) high); | |
f2f84cba NS |
441 | break; |
442 | ||
443 | default: | |
444 | gcc_unreachable (); | |
ae180d84 | 445 | } |
ae180d84 | 446 | break; |
b12b5029 | 447 | case 'G': /* Low word of CONST_DOUBLE. */ |
f2f84cba | 448 | switch (GET_CODE (x)) |
ae180d84 | 449 | { |
f2f84cba NS |
450 | case CONST_INT: |
451 | fprintf (file, "%ld", (long) INTVAL (x)); | |
452 | break; | |
453 | ||
454 | case CONST_DOUBLE: | |
ae180d84 JL |
455 | const_double_split (x, &high, &low); |
456 | fprintf (file, "%ld", (long) low); | |
f2f84cba NS |
457 | break; |
458 | ||
459 | default: | |
460 | gcc_unreachable (); | |
ae180d84 | 461 | } |
ae180d84 JL |
462 | break; |
463 | case 'L': | |
e0b3adcb | 464 | fprintf (file, "%d\n", (int)(INTVAL (x) & 0xffff)); |
ae180d84 JL |
465 | break; |
466 | case 'M': | |
467 | fprintf (file, "%d", exact_log2 (INTVAL (x))); | |
468 | break; | |
469 | case 'O': | |
f2f84cba NS |
470 | gcc_assert (special_symbolref_operand (x, VOIDmode)); |
471 | ||
472 | if (GET_CODE (x) == CONST) | |
473 | x = XEXP (XEXP (x, 0), 0); | |
474 | else | |
475 | gcc_assert (GET_CODE (x) == SYMBOL_REF); | |
476 | ||
477 | if (SYMBOL_REF_ZDA_P (x)) | |
478 | fprintf (file, "zdaoff"); | |
479 | else if (SYMBOL_REF_SDA_P (x)) | |
480 | fprintf (file, "sdaoff"); | |
481 | else if (SYMBOL_REF_TDA_P (x)) | |
482 | fprintf (file, "tdaoff"); | |
ae180d84 | 483 | else |
f2f84cba | 484 | gcc_unreachable (); |
ae180d84 JL |
485 | break; |
486 | case 'P': | |
f2f84cba NS |
487 | gcc_assert (special_symbolref_operand (x, VOIDmode)); |
488 | output_addr_const (file, x); | |
ae180d84 JL |
489 | break; |
490 | case 'Q': | |
f2f84cba NS |
491 | gcc_assert (special_symbolref_operand (x, VOIDmode)); |
492 | ||
493 | if (GET_CODE (x) == CONST) | |
494 | x = XEXP (XEXP (x, 0), 0); | |
ae180d84 | 495 | else |
f2f84cba NS |
496 | gcc_assert (GET_CODE (x) == SYMBOL_REF); |
497 | ||
498 | if (SYMBOL_REF_ZDA_P (x)) | |
499 | fprintf (file, "r0"); | |
500 | else if (SYMBOL_REF_SDA_P (x)) | |
501 | fprintf (file, "gp"); | |
502 | else if (SYMBOL_REF_TDA_P (x)) | |
503 | fprintf (file, "ep"); | |
504 | else | |
505 | gcc_unreachable (); | |
ae180d84 JL |
506 | break; |
507 | case 'R': /* 2nd word of a double. */ | |
508 | switch (GET_CODE (x)) | |
509 | { | |
3ce15347 NC |
510 | case REG: |
511 | fprintf (file, reg_names[REGNO (x) + 1]); | |
512 | break; | |
513 | case MEM: | |
b72f00af | 514 | x = XEXP (adjust_address (x, SImode, 4), 0); |
11d259f0 | 515 | v850_print_operand_address (file, x); |
7a846a6c NC |
516 | if (GET_CODE (x) == CONST_INT) |
517 | fprintf (file, "[r0]"); | |
3ce15347 NC |
518 | break; |
519 | ||
520 | default: | |
521 | break; | |
ae180d84 JL |
522 | } |
523 | break; | |
524 | case 'S': | |
525 | { | |
2ec6cd51 | 526 | /* If it's a reference to a TDA variable, use sst/sld vs. st/ld. */ |
145870b5 NC |
527 | if (GET_CODE (x) == MEM && ep_memory_operand (x, GET_MODE (x), FALSE)) |
528 | fputs ("s", file); | |
529 | ||
530 | break; | |
531 | } | |
532 | case 'T': | |
533 | { | |
534 | /* Like an 'S' operand above, but for unsigned loads only. */ | |
535 | if (GET_CODE (x) == MEM && ep_memory_operand (x, GET_MODE (x), TRUE)) | |
ae180d84 JL |
536 | fputs ("s", file); |
537 | ||
538 | break; | |
539 | } | |
b12b5029 | 540 | case 'W': /* Print the instruction suffix. */ |
ae180d84 JL |
541 | switch (GET_MODE (x)) |
542 | { | |
543 | default: | |
f2f84cba | 544 | gcc_unreachable (); |
ae180d84 JL |
545 | |
546 | case QImode: fputs (".b", file); break; | |
547 | case HImode: fputs (".h", file); break; | |
548 | case SImode: fputs (".w", file); break; | |
549 | case SFmode: fputs (".w", file); break; | |
550 | } | |
551 | break; | |
b12b5029 | 552 | case '.': /* Register r0. */ |
ae180d84 JL |
553 | fputs (reg_names[0], file); |
554 | break; | |
b12b5029 NC |
555 | case 'z': /* Reg or zero. */ |
556 | if (REG_P (x)) | |
1933ec7e | 557 | fputs (reg_names[REGNO (x)], file); |
223a9d64 N |
558 | else if ((GET_MODE(x) == SImode |
559 | || GET_MODE(x) == DFmode | |
560 | || GET_MODE(x) == SFmode) | |
561 | && x == CONST0_RTX(GET_MODE(x))) | |
562 | fputs (reg_names[0], file); | |
1933ec7e | 563 | else |
f2f84cba NS |
564 | { |
565 | gcc_assert (x == const0_rtx); | |
566 | fputs (reg_names[0], file); | |
567 | } | |
1933ec7e | 568 | break; |
ae180d84 JL |
569 | default: |
570 | switch (GET_CODE (x)) | |
571 | { | |
572 | case MEM: | |
573 | if (GET_CODE (XEXP (x, 0)) == CONST_INT) | |
f1c25d3b | 574 | output_address (gen_rtx_PLUS (SImode, gen_rtx_REG (SImode, 0), |
c5c76735 | 575 | XEXP (x, 0))); |
ae180d84 JL |
576 | else |
577 | output_address (XEXP (x, 0)); | |
578 | break; | |
579 | ||
580 | case REG: | |
581 | fputs (reg_names[REGNO (x)], file); | |
582 | break; | |
583 | case SUBREG: | |
ddef6bc7 | 584 | fputs (reg_names[subreg_regno (x)], file); |
ae180d84 JL |
585 | break; |
586 | case CONST_INT: | |
587 | case SYMBOL_REF: | |
588 | case CONST: | |
589 | case LABEL_REF: | |
590 | case CODE_LABEL: | |
11d259f0 | 591 | v850_print_operand_address (file, x); |
ae180d84 JL |
592 | break; |
593 | default: | |
f2f84cba | 594 | gcc_unreachable (); |
ae180d84 JL |
595 | } |
596 | break; | |
597 | ||
598 | } | |
599 | } | |
600 | ||
601 | \f | |
602 | /* Output assembly language output for the address ADDR to FILE. */ | |
603 | ||
11d259f0 NF |
604 | static void |
605 | v850_print_operand_address (FILE * file, rtx addr) | |
ae180d84 JL |
606 | { |
607 | switch (GET_CODE (addr)) | |
608 | { | |
609 | case REG: | |
610 | fprintf (file, "0["); | |
11d259f0 | 611 | v850_print_operand (file, addr, 0); |
ae180d84 JL |
612 | fprintf (file, "]"); |
613 | break; | |
614 | case LO_SUM: | |
615 | if (GET_CODE (XEXP (addr, 0)) == REG) | |
616 | { | |
617 | /* reg,foo */ | |
618 | fprintf (file, "lo("); | |
11d259f0 | 619 | v850_print_operand (file, XEXP (addr, 1), 0); |
ae180d84 | 620 | fprintf (file, ")["); |
11d259f0 | 621 | v850_print_operand (file, XEXP (addr, 0), 0); |
ae180d84 JL |
622 | fprintf (file, "]"); |
623 | } | |
624 | break; | |
625 | case PLUS: | |
626 | if (GET_CODE (XEXP (addr, 0)) == REG | |
627 | || GET_CODE (XEXP (addr, 0)) == SUBREG) | |
628 | { | |
629 | /* reg,foo */ | |
11d259f0 | 630 | v850_print_operand (file, XEXP (addr, 1), 0); |
ae180d84 | 631 | fprintf (file, "["); |
11d259f0 | 632 | v850_print_operand (file, XEXP (addr, 0), 0); |
ae180d84 JL |
633 | fprintf (file, "]"); |
634 | } | |
635 | else | |
636 | { | |
11d259f0 | 637 | v850_print_operand (file, XEXP (addr, 0), 0); |
ae180d84 | 638 | fprintf (file, "+"); |
11d259f0 | 639 | v850_print_operand (file, XEXP (addr, 1), 0); |
ae180d84 JL |
640 | } |
641 | break; | |
642 | case SYMBOL_REF: | |
50d1ff6a RH |
643 | { |
644 | const char *off_name = NULL; | |
645 | const char *reg_name = NULL; | |
646 | ||
647 | if (SYMBOL_REF_ZDA_P (addr)) | |
648 | { | |
649 | off_name = "zdaoff"; | |
650 | reg_name = "r0"; | |
651 | } | |
652 | else if (SYMBOL_REF_SDA_P (addr)) | |
653 | { | |
654 | off_name = "sdaoff"; | |
655 | reg_name = "gp"; | |
656 | } | |
657 | else if (SYMBOL_REF_TDA_P (addr)) | |
658 | { | |
659 | off_name = "tdaoff"; | |
660 | reg_name = "ep"; | |
661 | } | |
662 | ||
663 | if (off_name) | |
ae180d84 | 664 | fprintf (file, "%s(", off_name); |
ae180d84 | 665 | output_addr_const (file, addr); |
50d1ff6a RH |
666 | if (reg_name) |
667 | fprintf (file, ")[%s]", reg_name); | |
668 | } | |
ae180d84 JL |
669 | break; |
670 | case CONST: | |
671 | if (special_symbolref_operand (addr, VOIDmode)) | |
672 | { | |
50d1ff6a | 673 | rtx x = XEXP (XEXP (addr, 0), 0); |
3cce094d KG |
674 | const char *off_name; |
675 | const char *reg_name; | |
ae180d84 | 676 | |
50d1ff6a | 677 | if (SYMBOL_REF_ZDA_P (x)) |
ae180d84 JL |
678 | { |
679 | off_name = "zdaoff"; | |
680 | reg_name = "r0"; | |
681 | } | |
50d1ff6a | 682 | else if (SYMBOL_REF_SDA_P (x)) |
ae180d84 JL |
683 | { |
684 | off_name = "sdaoff"; | |
685 | reg_name = "gp"; | |
686 | } | |
50d1ff6a | 687 | else if (SYMBOL_REF_TDA_P (x)) |
ae180d84 JL |
688 | { |
689 | off_name = "tdaoff"; | |
690 | reg_name = "ep"; | |
691 | } | |
692 | else | |
f2f84cba | 693 | gcc_unreachable (); |
ae180d84 JL |
694 | |
695 | fprintf (file, "%s(", off_name); | |
696 | output_addr_const (file, addr); | |
697 | fprintf (file, ")[%s]", reg_name); | |
698 | } | |
699 | else | |
700 | output_addr_const (file, addr); | |
701 | break; | |
702 | default: | |
703 | output_addr_const (file, addr); | |
704 | break; | |
705 | } | |
706 | } | |
707 | ||
11d259f0 NF |
708 | static bool |
709 | v850_print_operand_punct_valid_p (unsigned char code) | |
710 | { | |
711 | return code == '.'; | |
712 | } | |
713 | ||
b4378319 NC |
714 | /* When assemble_integer is used to emit the offsets for a switch |
715 | table it can encounter (TRUNCATE:HI (MINUS:SI (LABEL_REF:SI) (LABEL_REF:SI))). | |
716 | output_addr_const will normally barf at this, but it is OK to omit | |
717 | the truncate and just emit the difference of the two labels. The | |
718 | .hword directive will automatically handle the truncation for us. | |
719 | ||
24da2019 | 720 | Returns true if rtx was handled, false otherwise. */ |
b4378319 | 721 | |
24da2019 | 722 | static bool |
59f3507d | 723 | v850_output_addr_const_extra (FILE * file, rtx x) |
b4378319 NC |
724 | { |
725 | if (GET_CODE (x) != TRUNCATE) | |
24da2019 | 726 | return false; |
b4378319 NC |
727 | |
728 | x = XEXP (x, 0); | |
729 | ||
730 | /* We must also handle the case where the switch table was passed a | |
731 | constant value and so has been collapsed. In this case the first | |
732 | label will have been deleted. In such a case it is OK to emit | |
733 | nothing, since the table will not be used. | |
734 | (cf gcc.c-torture/compile/990801-1.c). */ | |
735 | if (GET_CODE (x) == MINUS | |
736 | && GET_CODE (XEXP (x, 0)) == LABEL_REF | |
737 | && GET_CODE (XEXP (XEXP (x, 0), 0)) == CODE_LABEL | |
738 | && INSN_DELETED_P (XEXP (XEXP (x, 0), 0))) | |
24da2019 | 739 | return true; |
b4378319 NC |
740 | |
741 | output_addr_const (file, x); | |
24da2019 | 742 | return true; |
b4378319 | 743 | } |
ae180d84 JL |
744 | \f |
745 | /* Return appropriate code to load up a 1, 2, or 4 integer/floating | |
746 | point value. */ | |
747 | ||
8b97c5f8 | 748 | const char * |
59f3507d | 749 | output_move_single (rtx * operands) |
ae180d84 JL |
750 | { |
751 | rtx dst = operands[0]; | |
752 | rtx src = operands[1]; | |
753 | ||
754 | if (REG_P (dst)) | |
755 | { | |
756 | if (REG_P (src)) | |
757 | return "mov %1,%0"; | |
758 | ||
759 | else if (GET_CODE (src) == CONST_INT) | |
760 | { | |
761 | HOST_WIDE_INT value = INTVAL (src); | |
762 | ||
22f23985 | 763 | if (CONST_OK_FOR_J (value)) /* Signed 5-bit immediate. */ |
ae180d84 JL |
764 | return "mov %1,%0"; |
765 | ||
22f23985 | 766 | else if (CONST_OK_FOR_K (value)) /* Signed 16-bit immediate. */ |
223a9d64 | 767 | return "movea %1,%.,%0"; |
ae180d84 | 768 | |
b4378319 | 769 | else if (CONST_OK_FOR_L (value)) /* Upper 16 bits were set. */ |
223a9d64 | 770 | return "movhi hi0(%1),%.,%0"; |
ae180d84 | 771 | |
b4378319 | 772 | /* A random constant. */ |
223a9d64 | 773 | else if (TARGET_V850E || TARGET_V850E2_ALL) |
b4378319 NC |
774 | return "mov %1,%0"; |
775 | else | |
ae180d84 JL |
776 | return "movhi hi(%1),%.,%0\n\tmovea lo(%1),%0,%0"; |
777 | } | |
778 | ||
779 | else if (GET_CODE (src) == CONST_DOUBLE && GET_MODE (src) == SFmode) | |
780 | { | |
781 | HOST_WIDE_INT high, low; | |
782 | ||
783 | const_double_split (src, &high, &low); | |
b4378319 | 784 | |
22f23985 | 785 | if (CONST_OK_FOR_J (high)) /* Signed 5-bit immediate. */ |
ae180d84 JL |
786 | return "mov %F1,%0"; |
787 | ||
22f23985 | 788 | else if (CONST_OK_FOR_K (high)) /* Signed 16-bit immediate. */ |
223a9d64 | 789 | return "movea %F1,%.,%0"; |
ae180d84 | 790 | |
b4378319 | 791 | else if (CONST_OK_FOR_L (high)) /* Upper 16 bits were set. */ |
223a9d64 | 792 | return "movhi hi0(%F1),%.,%0"; |
ae180d84 | 793 | |
b4378319 | 794 | /* A random constant. */ |
223a9d64 | 795 | else if (TARGET_V850E || TARGET_V850E2_ALL) |
b4378319 NC |
796 | return "mov %F1,%0"; |
797 | ||
798 | else | |
ae180d84 JL |
799 | return "movhi hi(%F1),%.,%0\n\tmovea lo(%F1),%0,%0"; |
800 | } | |
801 | ||
802 | else if (GET_CODE (src) == MEM) | |
803 | return "%S1ld%W1 %1,%0"; | |
804 | ||
805 | else if (special_symbolref_operand (src, VOIDmode)) | |
806 | return "movea %O1(%P1),%Q1,%0"; | |
807 | ||
808 | else if (GET_CODE (src) == LABEL_REF | |
809 | || GET_CODE (src) == SYMBOL_REF | |
810 | || GET_CODE (src) == CONST) | |
145870b5 | 811 | { |
223a9d64 | 812 | if (TARGET_V850E || TARGET_V850E2_ALL) |
b4378319 NC |
813 | return "mov hilo(%1),%0"; |
814 | else | |
815 | return "movhi hi(%1),%.,%0\n\tmovea lo(%1),%0,%0"; | |
145870b5 | 816 | } |
ae180d84 JL |
817 | |
818 | else if (GET_CODE (src) == HIGH) | |
819 | return "movhi hi(%1),%.,%0"; | |
820 | ||
821 | else if (GET_CODE (src) == LO_SUM) | |
822 | { | |
823 | operands[2] = XEXP (src, 0); | |
824 | operands[3] = XEXP (src, 1); | |
825 | return "movea lo(%3),%2,%0"; | |
826 | } | |
827 | } | |
828 | ||
829 | else if (GET_CODE (dst) == MEM) | |
830 | { | |
831 | if (REG_P (src)) | |
832 | return "%S0st%W0 %1,%0"; | |
833 | ||
834 | else if (GET_CODE (src) == CONST_INT && INTVAL (src) == 0) | |
835 | return "%S0st%W0 %.,%0"; | |
836 | ||
837 | else if (GET_CODE (src) == CONST_DOUBLE | |
838 | && CONST0_RTX (GET_MODE (dst)) == src) | |
839 | return "%S0st%W0 %.,%0"; | |
840 | } | |
841 | ||
c5c76735 | 842 | fatal_insn ("output_move_single:", gen_rtx_SET (VOIDmode, dst, src)); |
ae180d84 JL |
843 | return ""; |
844 | } | |
845 | ||
223a9d64 N |
846 | /* Generate comparison code. */ |
847 | int | |
848 | v850_float_z_comparison_operator (rtx op, enum machine_mode mode) | |
849 | { | |
850 | enum rtx_code code = GET_CODE (op); | |
851 | ||
852 | if (GET_RTX_CLASS (code) != RTX_COMPARE | |
853 | && GET_RTX_CLASS (code) != RTX_COMM_COMPARE) | |
854 | return 0; | |
855 | ||
856 | if (mode != GET_MODE (op) && mode != VOIDmode) | |
857 | return 0; | |
858 | ||
859 | if ((GET_CODE (XEXP (op, 0)) != REG | |
860 | || REGNO (XEXP (op, 0)) != CC_REGNUM) | |
861 | || XEXP (op, 1) != const0_rtx) | |
862 | return 0; | |
863 | ||
864 | if (GET_MODE (XEXP (op, 0)) == CC_FPU_LTmode) | |
865 | return code == LT; | |
866 | if (GET_MODE (XEXP (op, 0)) == CC_FPU_LEmode) | |
867 | return code == LE; | |
868 | if (GET_MODE (XEXP (op, 0)) == CC_FPU_EQmode) | |
869 | return code == EQ; | |
870 | ||
871 | return 0; | |
872 | } | |
873 | ||
874 | int | |
875 | v850_float_nz_comparison_operator (rtx op, enum machine_mode mode) | |
876 | { | |
877 | enum rtx_code code = GET_CODE (op); | |
878 | ||
879 | if (GET_RTX_CLASS (code) != RTX_COMPARE | |
880 | && GET_RTX_CLASS (code) != RTX_COMM_COMPARE) | |
881 | return 0; | |
882 | ||
883 | if (mode != GET_MODE (op) && mode != VOIDmode) | |
884 | return 0; | |
885 | ||
886 | if ((GET_CODE (XEXP (op, 0)) != REG | |
887 | || REGNO (XEXP (op, 0)) != CC_REGNUM) | |
888 | || XEXP (op, 1) != const0_rtx) | |
889 | return 0; | |
890 | ||
891 | if (GET_MODE (XEXP (op, 0)) == CC_FPU_GTmode) | |
892 | return code == GT; | |
893 | if (GET_MODE (XEXP (op, 0)) == CC_FPU_GEmode) | |
894 | return code == GE; | |
895 | if (GET_MODE (XEXP (op, 0)) == CC_FPU_NEmode) | |
896 | return code == NE; | |
897 | ||
898 | return 0; | |
899 | } | |
900 | ||
901 | enum machine_mode | |
122603fa | 902 | v850_select_cc_mode (enum rtx_code cond, rtx op0, rtx op1 ATTRIBUTE_UNUSED) |
223a9d64 N |
903 | { |
904 | if (GET_MODE_CLASS (GET_MODE (op0)) == MODE_FLOAT) | |
905 | { | |
906 | switch (cond) | |
907 | { | |
908 | case LE: | |
909 | return CC_FPU_LEmode; | |
910 | case GE: | |
911 | return CC_FPU_GEmode; | |
912 | case LT: | |
913 | return CC_FPU_LTmode; | |
914 | case GT: | |
915 | return CC_FPU_GTmode; | |
916 | case EQ: | |
917 | return CC_FPU_EQmode; | |
918 | case NE: | |
919 | return CC_FPU_NEmode; | |
920 | default: | |
921 | abort (); | |
922 | } | |
923 | } | |
924 | return CCmode; | |
925 | } | |
926 | ||
927 | enum machine_mode | |
928 | v850_gen_float_compare (enum rtx_code cond, enum machine_mode mode ATTRIBUTE_UNUSED, rtx op0, rtx op1) | |
929 | { | |
930 | if (GET_MODE(op0) == DFmode) | |
931 | { | |
932 | switch (cond) | |
933 | { | |
934 | case LE: | |
935 | emit_insn (gen_cmpdf_le_insn (op0, op1)); | |
936 | break; | |
937 | case GE: | |
938 | emit_insn (gen_cmpdf_ge_insn (op0, op1)); | |
939 | break; | |
940 | case LT: | |
941 | emit_insn (gen_cmpdf_lt_insn (op0, op1)); | |
942 | break; | |
943 | case GT: | |
944 | emit_insn (gen_cmpdf_gt_insn (op0, op1)); | |
945 | break; | |
946 | case EQ: | |
947 | emit_insn (gen_cmpdf_eq_insn (op0, op1)); | |
948 | break; | |
949 | case NE: | |
950 | emit_insn (gen_cmpdf_ne_insn (op0, op1)); | |
951 | break; | |
952 | default: | |
953 | abort (); | |
954 | } | |
955 | } | |
956 | else if (GET_MODE(v850_compare_op0) == SFmode) | |
957 | { | |
958 | switch (cond) | |
959 | { | |
960 | case LE: | |
961 | emit_insn (gen_cmpsf_le_insn(op0, op1)); | |
962 | break; | |
963 | case GE: | |
964 | emit_insn (gen_cmpsf_ge_insn(op0, op1)); | |
965 | break; | |
966 | case LT: | |
967 | emit_insn (gen_cmpsf_lt_insn(op0, op1)); | |
968 | break; | |
969 | case GT: | |
970 | emit_insn (gen_cmpsf_gt_insn(op0, op1)); | |
971 | break; | |
972 | case EQ: | |
973 | emit_insn (gen_cmpsf_eq_insn(op0, op1)); | |
974 | break; | |
975 | case NE: | |
976 | emit_insn (gen_cmpsf_ne_insn(op0, op1)); | |
977 | break; | |
978 | default: | |
979 | abort (); | |
980 | } | |
981 | } | |
982 | else | |
983 | { | |
984 | abort (); | |
985 | } | |
986 | ||
987 | return v850_select_cc_mode (cond, op0, op1); | |
988 | } | |
989 | ||
990 | rtx | |
991 | v850_gen_compare (enum rtx_code cond, enum machine_mode mode, rtx op0, rtx op1) | |
992 | { | |
993 | if (GET_MODE_CLASS(GET_MODE (op0)) != MODE_FLOAT) | |
994 | { | |
995 | emit_insn (gen_cmpsi_insn (op0, op1)); | |
996 | return gen_rtx_fmt_ee (cond, mode, gen_rtx_REG(CCmode, CC_REGNUM), const0_rtx); | |
997 | } | |
998 | else | |
999 | { | |
1000 | rtx cc_reg; | |
1001 | mode = v850_gen_float_compare (cond, mode, op0, op1); | |
1002 | cc_reg = gen_rtx_REG (mode, CC_REGNUM); | |
1003 | emit_insn (gen_rtx_SET(mode, cc_reg, gen_rtx_REG (mode, FCC_REGNUM))); | |
1004 | ||
1005 | return gen_rtx_fmt_ee (cond, mode, cc_reg, const0_rtx); | |
1006 | } | |
1007 | } | |
1008 | ||
1933ec7e JW |
1009 | /* Return maximum offset supported for a short EP memory reference of mode |
1010 | MODE and signedness UNSIGNEDP. */ | |
ae180d84 | 1011 | |
3ce15347 | 1012 | static int |
59f3507d | 1013 | ep_memory_offset (enum machine_mode mode, int unsignedp ATTRIBUTE_UNUSED) |
ae180d84 | 1014 | { |
1933ec7e | 1015 | int max_offset = 0; |
ae180d84 | 1016 | |
1933ec7e | 1017 | switch (mode) |
ae180d84 | 1018 | { |
ae180d84 | 1019 | case QImode: |
b4378319 NC |
1020 | if (TARGET_SMALL_SLD) |
1021 | max_offset = (1 << 4); | |
223a9d64 N |
1022 | else if ((TARGET_V850E || TARGET_V850E2_ALL) |
1023 | && unsignedp) | |
b4378319 NC |
1024 | max_offset = (1 << 4); |
1025 | else | |
1026 | max_offset = (1 << 7); | |
ae180d84 JL |
1027 | break; |
1028 | ||
1029 | case HImode: | |
b4378319 NC |
1030 | if (TARGET_SMALL_SLD) |
1031 | max_offset = (1 << 5); | |
223a9d64 N |
1032 | else if ((TARGET_V850E || TARGET_V850E2_ALL) |
1033 | && unsignedp) | |
b4378319 NC |
1034 | max_offset = (1 << 5); |
1035 | else | |
1036 | max_offset = (1 << 8); | |
ae180d84 JL |
1037 | break; |
1038 | ||
1039 | case SImode: | |
1040 | case SFmode: | |
145870b5 | 1041 | max_offset = (1 << 8); |
ae180d84 | 1042 | break; |
3ce15347 NC |
1043 | |
1044 | default: | |
1045 | break; | |
ae180d84 JL |
1046 | } |
1047 | ||
1933ec7e JW |
1048 | return max_offset; |
1049 | } | |
1050 | ||
1051 | /* Return true if OP is a valid short EP memory reference */ | |
1052 | ||
1053 | int | |
59f3507d | 1054 | ep_memory_operand (rtx op, enum machine_mode mode, int unsigned_load) |
1933ec7e JW |
1055 | { |
1056 | rtx addr, op0, op1; | |
1057 | int max_offset; | |
1058 | int mask; | |
1059 | ||
2ec6cd51 | 1060 | /* If we are not using the EP register on a per-function basis |
6fc0bb99 | 1061 | then do not allow this optimization at all. This is to |
2ec6cd51 NC |
1062 | prevent the use of the SLD/SST instructions which cannot be |
1063 | guaranteed to work properly due to a hardware bug. */ | |
1064 | if (!TARGET_EP) | |
1065 | return FALSE; | |
1066 | ||
1933ec7e JW |
1067 | if (GET_CODE (op) != MEM) |
1068 | return FALSE; | |
1069 | ||
1070 | max_offset = ep_memory_offset (mode, unsigned_load); | |
1071 | ||
1072 | mask = GET_MODE_SIZE (mode) - 1; | |
1073 | ||
ae180d84 JL |
1074 | addr = XEXP (op, 0); |
1075 | if (GET_CODE (addr) == CONST) | |
1076 | addr = XEXP (addr, 0); | |
1077 | ||
1078 | switch (GET_CODE (addr)) | |
1079 | { | |
1080 | default: | |
1081 | break; | |
1082 | ||
1083 | case SYMBOL_REF: | |
50d1ff6a | 1084 | return SYMBOL_REF_TDA_P (addr); |
ae180d84 JL |
1085 | |
1086 | case REG: | |
1087 | return REGNO (addr) == EP_REGNUM; | |
1088 | ||
1089 | case PLUS: | |
1090 | op0 = XEXP (addr, 0); | |
1091 | op1 = XEXP (addr, 1); | |
1092 | if (GET_CODE (op1) == CONST_INT | |
1093 | && INTVAL (op1) < max_offset | |
2268cc52 | 1094 | && INTVAL (op1) >= 0 |
ae180d84 JL |
1095 | && (INTVAL (op1) & mask) == 0) |
1096 | { | |
1097 | if (GET_CODE (op0) == REG && REGNO (op0) == EP_REGNUM) | |
1098 | return TRUE; | |
1099 | ||
50d1ff6a | 1100 | if (GET_CODE (op0) == SYMBOL_REF && SYMBOL_REF_TDA_P (op0)) |
ae180d84 JL |
1101 | return TRUE; |
1102 | } | |
1103 | break; | |
1104 | } | |
1105 | ||
1106 | return FALSE; | |
1107 | } | |
ae180d84 JL |
1108 | \f |
1109 | /* Substitute memory references involving a pointer, to use the ep pointer, | |
1110 | taking care to save and preserve the ep. */ | |
1111 | ||
1112 | static void | |
59f3507d NN |
1113 | substitute_ep_register (rtx first_insn, |
1114 | rtx last_insn, | |
1115 | int uses, | |
1116 | int regno, | |
1117 | rtx * p_r1, | |
1118 | rtx * p_ep) | |
ae180d84 | 1119 | { |
c5c76735 | 1120 | rtx reg = gen_rtx_REG (Pmode, regno); |
ae180d84 | 1121 | rtx insn; |
ae180d84 JL |
1122 | |
1123 | if (!*p_r1) | |
1124 | { | |
90745823 | 1125 | df_set_regs_ever_live (1, true); |
c5c76735 JL |
1126 | *p_r1 = gen_rtx_REG (Pmode, 1); |
1127 | *p_ep = gen_rtx_REG (Pmode, 30); | |
ae180d84 JL |
1128 | } |
1129 | ||
1130 | if (TARGET_DEBUG) | |
3ce15347 NC |
1131 | fprintf (stderr, "\ |
1132 | Saved %d bytes (%d uses of register %s) in function %s, starting as insn %d, ending at %d\n", | |
ae180d84 JL |
1133 | 2 * (uses - 3), uses, reg_names[regno], |
1134 | IDENTIFIER_POINTER (DECL_NAME (current_function_decl)), | |
1135 | INSN_UID (first_insn), INSN_UID (last_insn)); | |
1136 | ||
1137 | if (GET_CODE (first_insn) == NOTE) | |
1138 | first_insn = next_nonnote_insn (first_insn); | |
1139 | ||
1140 | last_insn = next_nonnote_insn (last_insn); | |
1141 | for (insn = first_insn; insn && insn != last_insn; insn = NEXT_INSN (insn)) | |
1142 | { | |
1143 | if (GET_CODE (insn) == INSN) | |
1144 | { | |
1145 | rtx pattern = single_set (insn); | |
1146 | ||
1147 | /* Replace the memory references. */ | |
1148 | if (pattern) | |
1149 | { | |
1150 | rtx *p_mem; | |
1933ec7e JW |
1151 | /* Memory operands are signed by default. */ |
1152 | int unsignedp = FALSE; | |
ae180d84 JL |
1153 | |
1154 | if (GET_CODE (SET_DEST (pattern)) == MEM | |
1155 | && GET_CODE (SET_SRC (pattern)) == MEM) | |
1156 | p_mem = (rtx *)0; | |
1157 | ||
1158 | else if (GET_CODE (SET_DEST (pattern)) == MEM) | |
1159 | p_mem = &SET_DEST (pattern); | |
1160 | ||
1161 | else if (GET_CODE (SET_SRC (pattern)) == MEM) | |
1162 | p_mem = &SET_SRC (pattern); | |
1163 | ||
b4378319 NC |
1164 | else if (GET_CODE (SET_SRC (pattern)) == SIGN_EXTEND |
1165 | && GET_CODE (XEXP (SET_SRC (pattern), 0)) == MEM) | |
1166 | p_mem = &XEXP (SET_SRC (pattern), 0); | |
1167 | ||
1168 | else if (GET_CODE (SET_SRC (pattern)) == ZERO_EXTEND | |
1169 | && GET_CODE (XEXP (SET_SRC (pattern), 0)) == MEM) | |
1170 | { | |
1171 | p_mem = &XEXP (SET_SRC (pattern), 0); | |
1172 | unsignedp = TRUE; | |
1173 | } | |
ae180d84 JL |
1174 | else |
1175 | p_mem = (rtx *)0; | |
1176 | ||
1177 | if (p_mem) | |
1178 | { | |
1179 | rtx addr = XEXP (*p_mem, 0); | |
1180 | ||
c3edd394 | 1181 | if (GET_CODE (addr) == REG && REGNO (addr) == (unsigned) regno) |
ae180d84 JL |
1182 | *p_mem = change_address (*p_mem, VOIDmode, *p_ep); |
1183 | ||
1184 | else if (GET_CODE (addr) == PLUS | |
1185 | && GET_CODE (XEXP (addr, 0)) == REG | |
c3edd394 | 1186 | && REGNO (XEXP (addr, 0)) == (unsigned) regno |
ae180d84 | 1187 | && GET_CODE (XEXP (addr, 1)) == CONST_INT |
3ce15347 | 1188 | && ((INTVAL (XEXP (addr, 1))) |
1933ec7e | 1189 | < ep_memory_offset (GET_MODE (*p_mem), |
2268cc52 JL |
1190 | unsignedp)) |
1191 | && ((INTVAL (XEXP (addr, 1))) >= 0)) | |
ae180d84 | 1192 | *p_mem = change_address (*p_mem, VOIDmode, |
c5c76735 JL |
1193 | gen_rtx_PLUS (Pmode, |
1194 | *p_ep, | |
1195 | XEXP (addr, 1))); | |
ae180d84 JL |
1196 | } |
1197 | } | |
1198 | } | |
1199 | } | |
1200 | ||
1201 | /* Optimize back to back cases of ep <- r1 & r1 <- ep. */ | |
1202 | insn = prev_nonnote_insn (first_insn); | |
1203 | if (insn && GET_CODE (insn) == INSN | |
1204 | && GET_CODE (PATTERN (insn)) == SET | |
1205 | && SET_DEST (PATTERN (insn)) == *p_ep | |
1206 | && SET_SRC (PATTERN (insn)) == *p_r1) | |
1207 | delete_insn (insn); | |
1208 | else | |
c5c76735 | 1209 | emit_insn_before (gen_rtx_SET (Pmode, *p_r1, *p_ep), first_insn); |
ae180d84 | 1210 | |
c5c76735 JL |
1211 | emit_insn_before (gen_rtx_SET (Pmode, *p_ep, reg), first_insn); |
1212 | emit_insn_before (gen_rtx_SET (Pmode, *p_ep, *p_r1), last_insn); | |
ae180d84 JL |
1213 | } |
1214 | ||
1215 | \f | |
18dbd950 RS |
1216 | /* TARGET_MACHINE_DEPENDENT_REORG. On the 850, we use it to implement |
1217 | the -mep mode to copy heavily used pointers to ep to use the implicit | |
1218 | addressing. */ | |
ae180d84 | 1219 | |
18dbd950 | 1220 | static void |
59f3507d | 1221 | v850_reorg (void) |
ae180d84 | 1222 | { |
3ce15347 NC |
1223 | struct |
1224 | { | |
ae180d84 JL |
1225 | int uses; |
1226 | rtx first_insn; | |
1227 | rtx last_insn; | |
3ce15347 NC |
1228 | } |
1229 | regs[FIRST_PSEUDO_REGISTER]; | |
ae180d84 JL |
1230 | |
1231 | int i; | |
1232 | int use_ep = FALSE; | |
1233 | rtx r1 = NULL_RTX; | |
1234 | rtx ep = NULL_RTX; | |
1235 | rtx insn; | |
1236 | rtx pattern; | |
1237 | ||
61db4608 | 1238 | /* If not ep mode, just return now. */ |
ae180d84 JL |
1239 | if (!TARGET_EP) |
1240 | return; | |
1241 | ||
1242 | for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) | |
1243 | { | |
1244 | regs[i].uses = 0; | |
1245 | regs[i].first_insn = NULL_RTX; | |
1246 | regs[i].last_insn = NULL_RTX; | |
1247 | } | |
1248 | ||
18dbd950 | 1249 | for (insn = get_insns (); insn != NULL_RTX; insn = NEXT_INSN (insn)) |
ae180d84 JL |
1250 | { |
1251 | switch (GET_CODE (insn)) | |
1252 | { | |
1253 | /* End of basic block */ | |
1254 | default: | |
1255 | if (!use_ep) | |
1256 | { | |
1257 | int max_uses = -1; | |
1258 | int max_regno = -1; | |
1259 | ||
1260 | for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) | |
1261 | { | |
1262 | if (max_uses < regs[i].uses) | |
1263 | { | |
1264 | max_uses = regs[i].uses; | |
1265 | max_regno = i; | |
1266 | } | |
1267 | } | |
1268 | ||
1269 | if (max_uses > 3) | |
1270 | substitute_ep_register (regs[max_regno].first_insn, | |
1271 | regs[max_regno].last_insn, | |
1272 | max_uses, max_regno, &r1, &ep); | |
1273 | } | |
1274 | ||
1275 | use_ep = FALSE; | |
1276 | for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) | |
1277 | { | |
1278 | regs[i].uses = 0; | |
1279 | regs[i].first_insn = NULL_RTX; | |
1280 | regs[i].last_insn = NULL_RTX; | |
1281 | } | |
1282 | break; | |
1283 | ||
1284 | case NOTE: | |
1285 | break; | |
1286 | ||
1287 | case INSN: | |
1288 | pattern = single_set (insn); | |
1289 | ||
1290 | /* See if there are any memory references we can shorten */ | |
1291 | if (pattern) | |
1292 | { | |
1293 | rtx src = SET_SRC (pattern); | |
1294 | rtx dest = SET_DEST (pattern); | |
1295 | rtx mem; | |
1933ec7e JW |
1296 | /* Memory operands are signed by default. */ |
1297 | int unsignedp = FALSE; | |
ae180d84 | 1298 | |
9324411a | 1299 | /* We might have (SUBREG (MEM)) here, so just get rid of the |
68882f0f JJ |
1300 | subregs to make this code simpler. */ |
1301 | if (GET_CODE (dest) == SUBREG | |
1302 | && (GET_CODE (SUBREG_REG (dest)) == MEM | |
1303 | || GET_CODE (SUBREG_REG (dest)) == REG)) | |
55a2c322 | 1304 | alter_subreg (&dest, true); |
68882f0f JJ |
1305 | if (GET_CODE (src) == SUBREG |
1306 | && (GET_CODE (SUBREG_REG (src)) == MEM | |
1307 | || GET_CODE (SUBREG_REG (src)) == REG)) | |
55a2c322 | 1308 | alter_subreg (&src, true); |
9324411a | 1309 | |
ae180d84 JL |
1310 | if (GET_CODE (dest) == MEM && GET_CODE (src) == MEM) |
1311 | mem = NULL_RTX; | |
1312 | ||
1313 | else if (GET_CODE (dest) == MEM) | |
1314 | mem = dest; | |
1315 | ||
1316 | else if (GET_CODE (src) == MEM) | |
1317 | mem = src; | |
1318 | ||
b4378319 NC |
1319 | else if (GET_CODE (src) == SIGN_EXTEND |
1320 | && GET_CODE (XEXP (src, 0)) == MEM) | |
1321 | mem = XEXP (src, 0); | |
1322 | ||
1323 | else if (GET_CODE (src) == ZERO_EXTEND | |
1324 | && GET_CODE (XEXP (src, 0)) == MEM) | |
1325 | { | |
1326 | mem = XEXP (src, 0); | |
1327 | unsignedp = TRUE; | |
1328 | } | |
ae180d84 JL |
1329 | else |
1330 | mem = NULL_RTX; | |
1331 | ||
1933ec7e | 1332 | if (mem && ep_memory_operand (mem, GET_MODE (mem), unsignedp)) |
ae180d84 JL |
1333 | use_ep = TRUE; |
1334 | ||
1335 | else if (!use_ep && mem | |
1336 | && GET_MODE_SIZE (GET_MODE (mem)) <= UNITS_PER_WORD) | |
1337 | { | |
1338 | rtx addr = XEXP (mem, 0); | |
1339 | int regno = -1; | |
1340 | int short_p; | |
1341 | ||
1342 | if (GET_CODE (addr) == REG) | |
1343 | { | |
1344 | short_p = TRUE; | |
1345 | regno = REGNO (addr); | |
1346 | } | |
1347 | ||
1348 | else if (GET_CODE (addr) == PLUS | |
1349 | && GET_CODE (XEXP (addr, 0)) == REG | |
1350 | && GET_CODE (XEXP (addr, 1)) == CONST_INT | |
3ce15347 | 1351 | && ((INTVAL (XEXP (addr, 1))) |
2268cc52 JL |
1352 | < ep_memory_offset (GET_MODE (mem), unsignedp)) |
1353 | && ((INTVAL (XEXP (addr, 1))) >= 0)) | |
ae180d84 JL |
1354 | { |
1355 | short_p = TRUE; | |
1356 | regno = REGNO (XEXP (addr, 0)); | |
1357 | } | |
1358 | ||
1359 | else | |
1360 | short_p = FALSE; | |
1361 | ||
1362 | if (short_p) | |
1363 | { | |
1364 | regs[regno].uses++; | |
1365 | regs[regno].last_insn = insn; | |
1366 | if (!regs[regno].first_insn) | |
1367 | regs[regno].first_insn = insn; | |
1368 | } | |
1369 | } | |
1370 | ||
1371 | /* Loading up a register in the basic block zaps any savings | |
1372 | for the register */ | |
9324411a | 1373 | if (GET_CODE (dest) == REG) |
ae180d84 JL |
1374 | { |
1375 | enum machine_mode mode = GET_MODE (dest); | |
ae180d84 JL |
1376 | int regno; |
1377 | int endregno; | |
1378 | ||
9324411a | 1379 | regno = REGNO (dest); |
ae180d84 JL |
1380 | endregno = regno + HARD_REGNO_NREGS (regno, mode); |
1381 | ||
1382 | if (!use_ep) | |
1383 | { | |
1384 | /* See if we can use the pointer before this | |
1385 | modification. */ | |
1386 | int max_uses = -1; | |
1387 | int max_regno = -1; | |
1388 | ||
1389 | for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) | |
1390 | { | |
1391 | if (max_uses < regs[i].uses) | |
1392 | { | |
1393 | max_uses = regs[i].uses; | |
1394 | max_regno = i; | |
1395 | } | |
1396 | } | |
1397 | ||
1398 | if (max_uses > 3 | |
1399 | && max_regno >= regno | |
1400 | && max_regno < endregno) | |
1401 | { | |
1402 | substitute_ep_register (regs[max_regno].first_insn, | |
1403 | regs[max_regno].last_insn, | |
3ce15347 NC |
1404 | max_uses, max_regno, &r1, |
1405 | &ep); | |
ae180d84 JL |
1406 | |
1407 | /* Since we made a substitution, zap all remembered | |
1408 | registers. */ | |
1409 | for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) | |
1410 | { | |
1411 | regs[i].uses = 0; | |
1412 | regs[i].first_insn = NULL_RTX; | |
1413 | regs[i].last_insn = NULL_RTX; | |
1414 | } | |
1415 | } | |
1416 | } | |
1417 | ||
1418 | for (i = regno; i < endregno; i++) | |
1419 | { | |
1420 | regs[i].uses = 0; | |
1421 | regs[i].first_insn = NULL_RTX; | |
1422 | regs[i].last_insn = NULL_RTX; | |
1423 | } | |
1424 | } | |
1425 | } | |
1426 | } | |
1427 | } | |
1428 | } | |
1429 | ||
ae180d84 | 1430 | /* # of registers saved by the interrupt handler. */ |
223a9d64 | 1431 | #define INTERRUPT_FIXED_NUM 5 |
ae180d84 JL |
1432 | |
1433 | /* # of bytes for registers saved by the interrupt handler. */ | |
1434 | #define INTERRUPT_FIXED_SAVE_SIZE (4 * INTERRUPT_FIXED_NUM) | |
1435 | ||
ae180d84 JL |
1436 | /* # of words saved for other registers. */ |
1437 | #define INTERRUPT_ALL_SAVE_NUM \ | |
223a9d64 | 1438 | (30 - INTERRUPT_FIXED_NUM) |
ae180d84 JL |
1439 | |
1440 | #define INTERRUPT_ALL_SAVE_SIZE (4 * INTERRUPT_ALL_SAVE_NUM) | |
1441 | ||
1442 | int | |
59f3507d | 1443 | compute_register_save_size (long * p_reg_saved) |
ae180d84 JL |
1444 | { |
1445 | int size = 0; | |
1446 | int i; | |
1447 | int interrupt_handler = v850_interrupt_function_p (current_function_decl); | |
6fb5fa3c | 1448 | int call_p = df_regs_ever_live_p (LINK_POINTER_REGNUM); |
ae180d84 JL |
1449 | long reg_saved = 0; |
1450 | ||
b12b5029 NC |
1451 | /* Always save the link pointer - we cannot rely upon df_regs_ever_live_p. */ |
1452 | if (!call_p) | |
6fb5fa3c DB |
1453 | { |
1454 | df_set_regs_ever_live (LINK_POINTER_REGNUM, true); | |
1455 | call_p = 1; | |
1456 | } | |
b12b5029 | 1457 | |
ae180d84 JL |
1458 | /* Count space for the register saves. */ |
1459 | if (interrupt_handler) | |
1460 | { | |
1461 | for (i = 0; i <= 31; i++) | |
1462 | switch (i) | |
1463 | { | |
1464 | default: | |
6fb5fa3c | 1465 | if (df_regs_ever_live_p (i) || call_p) |
ae180d84 JL |
1466 | { |
1467 | size += 4; | |
1468 | reg_saved |= 1L << i; | |
1469 | } | |
1470 | break; | |
1471 | ||
1472 | /* We don't save/restore r0 or the stack pointer */ | |
1473 | case 0: | |
1474 | case STACK_POINTER_REGNUM: | |
1475 | break; | |
1476 | ||
1477 | /* For registers with fixed use, we save them, set them to the | |
1478 | appropriate value, and then restore them. | |
1479 | These registers are handled specially, so don't list them | |
1480 | on the list of registers to save in the prologue. */ | |
1481 | case 1: /* temp used to hold ep */ | |
b24bcfb3 | 1482 | case 4: /* gp */ |
ae180d84 | 1483 | case 10: /* temp used to call interrupt save/restore */ |
223a9d64 | 1484 | case 11: /* temp used to call interrupt save/restore (long call) */ |
ae180d84 JL |
1485 | case EP_REGNUM: /* ep */ |
1486 | size += 4; | |
1487 | break; | |
1488 | } | |
1489 | } | |
ae180d84 | 1490 | else |
29a65e3d NC |
1491 | { |
1492 | /* Find the first register that needs to be saved. */ | |
1493 | for (i = 0; i <= 31; i++) | |
6fb5fa3c | 1494 | if (df_regs_ever_live_p (i) && ((! call_used_regs[i]) |
29a65e3d NC |
1495 | || i == LINK_POINTER_REGNUM)) |
1496 | break; | |
1497 | ||
1498 | /* If it is possible that an out-of-line helper function might be | |
1499 | used to generate the prologue for the current function, then we | |
1500 | need to cover the possibility that such a helper function will | |
1501 | be used, despite the fact that there might be gaps in the list of | |
1502 | registers that need to be saved. To detect this we note that the | |
a17a104c CM |
1503 | helper functions always push at least register r29 (provided |
1504 | that the function is not an interrupt handler). */ | |
29a65e3d NC |
1505 | |
1506 | if (TARGET_PROLOG_FUNCTION | |
a17a104c | 1507 | && (i == 2 || ((i >= 20) && (i < 30)))) |
ae180d84 | 1508 | { |
29a65e3d NC |
1509 | if (i == 2) |
1510 | { | |
1511 | size += 4; | |
1512 | reg_saved |= 1L << i; | |
1513 | ||
1514 | i = 20; | |
1515 | } | |
ae180d84 | 1516 | |
29a65e3d NC |
1517 | /* Helper functions save all registers between the starting |
1518 | register and the last register, regardless of whether they | |
1519 | are actually used by the function or not. */ | |
1520 | for (; i <= 29; i++) | |
1521 | { | |
1522 | size += 4; | |
1523 | reg_saved |= 1L << i; | |
1524 | } | |
1525 | ||
6fb5fa3c | 1526 | if (df_regs_ever_live_p (LINK_POINTER_REGNUM)) |
29a65e3d NC |
1527 | { |
1528 | size += 4; | |
1529 | reg_saved |= 1L << LINK_POINTER_REGNUM; | |
1530 | } | |
1531 | } | |
1532 | else | |
1533 | { | |
1534 | for (; i <= 31; i++) | |
6fb5fa3c | 1535 | if (df_regs_ever_live_p (i) && ((! call_used_regs[i]) |
29a65e3d NC |
1536 | || i == LINK_POINTER_REGNUM)) |
1537 | { | |
1538 | size += 4; | |
1539 | reg_saved |= 1L << i; | |
1540 | } | |
1541 | } | |
1542 | } | |
1543 | ||
ae180d84 JL |
1544 | if (p_reg_saved) |
1545 | *p_reg_saved = reg_saved; | |
1546 | ||
1547 | return size; | |
1548 | } | |
1549 | ||
1550 | int | |
59f3507d | 1551 | compute_frame_size (int size, long * p_reg_saved) |
ae180d84 | 1552 | { |
ae180d84 JL |
1553 | return (size |
1554 | + compute_register_save_size (p_reg_saved) | |
38173d38 | 1555 | + crtl->outgoing_args_size); |
ae180d84 JL |
1556 | } |
1557 | ||
223a9d64 N |
1558 | static int |
1559 | use_prolog_function (int num_save, int frame_size) | |
1560 | { | |
1561 | int alloc_stack = (4 * num_save); | |
1562 | int unalloc_stack = frame_size - alloc_stack; | |
1563 | int save_func_len, restore_func_len; | |
1564 | int save_normal_len, restore_normal_len; | |
1565 | ||
1566 | if (! TARGET_DISABLE_CALLT) | |
1567 | save_func_len = restore_func_len = 2; | |
1568 | else | |
1569 | save_func_len = restore_func_len = TARGET_LONG_CALLS ? (4+4+4+2+2) : 4; | |
1570 | ||
1571 | if (unalloc_stack) | |
1572 | { | |
1573 | save_func_len += CONST_OK_FOR_J (-unalloc_stack) ? 2 : 4; | |
1574 | restore_func_len += CONST_OK_FOR_J (-unalloc_stack) ? 2 : 4; | |
1575 | } | |
1576 | ||
1577 | /* See if we would have used ep to save the stack. */ | |
1578 | if (TARGET_EP && num_save > 3 && (unsigned)frame_size < 255) | |
1579 | save_normal_len = restore_normal_len = (3 * 2) + (2 * num_save); | |
1580 | else | |
1581 | save_normal_len = restore_normal_len = 4 * num_save; | |
1582 | ||
1583 | save_normal_len += CONST_OK_FOR_J (-frame_size) ? 2 : 4; | |
1584 | restore_normal_len += (CONST_OK_FOR_J (frame_size) ? 2 : 4) + 2; | |
1585 | ||
1586 | /* Don't bother checking if we don't actually save any space. | |
1587 | This happens for instance if one register is saved and additional | |
1588 | stack space is allocated. */ | |
1589 | return ((save_func_len + restore_func_len) < (save_normal_len + restore_normal_len)); | |
1590 | } | |
1591 | ||
b12b5029 NC |
1592 | static void |
1593 | increment_stack (unsigned int amount) | |
1594 | { | |
1595 | rtx inc; | |
1596 | ||
1597 | if (amount == 0) | |
1598 | return; | |
1599 | ||
1600 | inc = GEN_INT (amount); | |
1601 | ||
1602 | if (! CONST_OK_FOR_K (amount)) | |
1603 | { | |
1604 | rtx reg = gen_rtx_REG (Pmode, 12); | |
1605 | ||
1606 | emit_move_insn (reg, inc); | |
1607 | inc = reg; | |
1608 | } | |
1609 | ||
1610 | emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx, inc)); | |
1611 | } | |
1612 | ||
ae180d84 | 1613 | void |
59f3507d | 1614 | expand_prologue (void) |
ae180d84 JL |
1615 | { |
1616 | unsigned int i; | |
ae180d84 JL |
1617 | unsigned int size = get_frame_size (); |
1618 | unsigned int actual_fsize; | |
1619 | unsigned int init_stack_alloc = 0; | |
1620 | rtx save_regs[32]; | |
1621 | rtx save_all; | |
3ce15347 | 1622 | unsigned int num_save; |
ae180d84 JL |
1623 | int code; |
1624 | int interrupt_handler = v850_interrupt_function_p (current_function_decl); | |
1625 | long reg_saved = 0; | |
1626 | ||
1627 | actual_fsize = compute_frame_size (size, ®_saved); | |
1628 | ||
b12b5029 NC |
1629 | if (flag_stack_usage_info) |
1630 | current_function_static_stack_size = actual_fsize; | |
1631 | ||
0e668396 | 1632 | /* Save/setup global registers for interrupt functions right now. */ |
ae180d84 JL |
1633 | if (interrupt_handler) |
1634 | { | |
e5db8f2f | 1635 | if (! TARGET_DISABLE_CALLT && (TARGET_V850E || TARGET_V850E2_ALL)) |
b4378319 NC |
1636 | emit_insn (gen_callt_save_interrupt ()); |
1637 | else | |
674fdc14 | 1638 | emit_insn (gen_save_interrupt ()); |
b4378319 | 1639 | |
ae180d84 | 1640 | actual_fsize -= INTERRUPT_FIXED_SAVE_SIZE; |
29a65e3d NC |
1641 | |
1642 | if (((1L << LINK_POINTER_REGNUM) & reg_saved) != 0) | |
ae180d84 JL |
1643 | actual_fsize -= INTERRUPT_ALL_SAVE_SIZE; |
1644 | } | |
1645 | ||
0e668396 | 1646 | /* Identify all of the saved registers. */ |
ae180d84 | 1647 | num_save = 0; |
223a9d64 | 1648 | for (i = 1; i < 32; i++) |
ae180d84 JL |
1649 | { |
1650 | if (((1L << i) & reg_saved) != 0) | |
c5c76735 | 1651 | save_regs[num_save++] = gen_rtx_REG (Pmode, i); |
ae180d84 JL |
1652 | } |
1653 | ||
ae180d84 JL |
1654 | /* See if we have an insn that allocates stack space and saves the particular |
1655 | registers we want to. */ | |
1656 | save_all = NULL_RTX; | |
223a9d64 | 1657 | if (TARGET_PROLOG_FUNCTION && num_save > 0) |
ae180d84 | 1658 | { |
223a9d64 | 1659 | if (use_prolog_function (num_save, actual_fsize)) |
ae180d84 | 1660 | { |
223a9d64 N |
1661 | int alloc_stack = 4 * num_save; |
1662 | int offset = 0; | |
1663 | ||
c5c76735 JL |
1664 | save_all = gen_rtx_PARALLEL |
1665 | (VOIDmode, | |
fdf3bb57 | 1666 | rtvec_alloc (num_save + 1 |
223a9d64 | 1667 | + (TARGET_DISABLE_CALLT ? (TARGET_LONG_CALLS ? 2 : 1) : 0))); |
c5c76735 JL |
1668 | |
1669 | XVECEXP (save_all, 0, 0) | |
1670 | = gen_rtx_SET (VOIDmode, | |
1671 | stack_pointer_rtx, | |
223a9d64 N |
1672 | gen_rtx_PLUS (Pmode, |
1673 | stack_pointer_rtx, | |
1674 | GEN_INT(-alloc_stack))); | |
ae180d84 JL |
1675 | for (i = 0; i < num_save; i++) |
1676 | { | |
223a9d64 | 1677 | offset -= 4; |
c5c76735 JL |
1678 | XVECEXP (save_all, 0, i+1) |
1679 | = gen_rtx_SET (VOIDmode, | |
1680 | gen_rtx_MEM (Pmode, | |
223a9d64 N |
1681 | gen_rtx_PLUS (Pmode, |
1682 | stack_pointer_rtx, | |
1683 | GEN_INT(offset))), | |
c5c76735 | 1684 | save_regs[i]); |
ae180d84 JL |
1685 | } |
1686 | ||
223a9d64 | 1687 | if (TARGET_DISABLE_CALLT) |
fdf3bb57 NC |
1688 | { |
1689 | XVECEXP (save_all, 0, num_save + 1) | |
1690 | = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (Pmode, 10)); | |
1691 | ||
1692 | if (TARGET_LONG_CALLS) | |
1693 | XVECEXP (save_all, 0, num_save + 2) | |
1694 | = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (Pmode, 11)); | |
1695 | } | |
1696 | ||
df4ae160 | 1697 | code = recog (save_all, NULL_RTX, NULL); |
ae180d84 JL |
1698 | if (code >= 0) |
1699 | { | |
1700 | rtx insn = emit_insn (save_all); | |
1701 | INSN_CODE (insn) = code; | |
1702 | actual_fsize -= alloc_stack; | |
29a65e3d | 1703 | |
ae180d84 JL |
1704 | } |
1705 | else | |
1706 | save_all = NULL_RTX; | |
1707 | } | |
1708 | } | |
1709 | ||
3ce15347 | 1710 | /* If no prolog save function is available, store the registers the old |
d4de0221 | 1711 | fashioned way (one by one). */ |
ae180d84 JL |
1712 | if (!save_all) |
1713 | { | |
1714 | /* Special case interrupt functions that save all registers for a call. */ | |
29a65e3d NC |
1715 | if (interrupt_handler && ((1L << LINK_POINTER_REGNUM) & reg_saved) != 0) |
1716 | { | |
e5db8f2f | 1717 | if (! TARGET_DISABLE_CALLT && (TARGET_V850E || TARGET_V850E2_ALL)) |
b4378319 NC |
1718 | emit_insn (gen_callt_save_all_interrupt ()); |
1719 | else | |
1720 | emit_insn (gen_save_all_interrupt ()); | |
29a65e3d | 1721 | } |
ae180d84 JL |
1722 | else |
1723 | { | |
223a9d64 | 1724 | int offset; |
ae180d84 JL |
1725 | /* If the stack is too big, allocate it in chunks so we can do the |
1726 | register saves. We use the register save size so we use the ep | |
1727 | register. */ | |
1728 | if (actual_fsize && !CONST_OK_FOR_K (-actual_fsize)) | |
1729 | init_stack_alloc = compute_register_save_size (NULL); | |
1730 | else | |
1731 | init_stack_alloc = actual_fsize; | |
145870b5 | 1732 | |
d4de0221 | 1733 | /* Save registers at the beginning of the stack frame. */ |
ae180d84 | 1734 | offset = init_stack_alloc - 4; |
145870b5 | 1735 | |
ae180d84 | 1736 | if (init_stack_alloc) |
b12b5029 | 1737 | increment_stack (- (signed) init_stack_alloc); |
145870b5 | 1738 | |
ae180d84 | 1739 | /* Save the return pointer first. */ |
29a65e3d | 1740 | if (num_save > 0 && REGNO (save_regs[num_save-1]) == LINK_POINTER_REGNUM) |
ae180d84 | 1741 | { |
c5c76735 | 1742 | emit_move_insn (gen_rtx_MEM (SImode, |
0a81f074 RS |
1743 | plus_constant (Pmode, |
1744 | stack_pointer_rtx, | |
c5c76735 | 1745 | offset)), |
ae180d84 JL |
1746 | save_regs[--num_save]); |
1747 | offset -= 4; | |
1748 | } | |
145870b5 | 1749 | |
ae180d84 JL |
1750 | for (i = 0; i < num_save; i++) |
1751 | { | |
c5c76735 | 1752 | emit_move_insn (gen_rtx_MEM (SImode, |
0a81f074 RS |
1753 | plus_constant (Pmode, |
1754 | stack_pointer_rtx, | |
c5c76735 | 1755 | offset)), |
ae180d84 JL |
1756 | save_regs[i]); |
1757 | offset -= 4; | |
1758 | } | |
1759 | } | |
1760 | } | |
1761 | ||
1762 | /* Allocate the rest of the stack that was not allocated above (either it is | |
1763 | > 32K or we just called a function to save the registers and needed more | |
1764 | stack. */ | |
1765 | if (actual_fsize > init_stack_alloc) | |
1766 | { | |
1767 | int diff = actual_fsize - init_stack_alloc; | |
b12b5029 NC |
1768 | |
1769 | increment_stack (- diff); | |
ae180d84 JL |
1770 | } |
1771 | ||
1772 | /* If we need a frame pointer, set it up now. */ | |
1773 | if (frame_pointer_needed) | |
1774 | emit_move_insn (hard_frame_pointer_rtx, stack_pointer_rtx); | |
1775 | } | |
1776 | \f | |
1777 | ||
1778 | void | |
59f3507d | 1779 | expand_epilogue (void) |
ae180d84 JL |
1780 | { |
1781 | unsigned int i; | |
ae180d84 JL |
1782 | unsigned int size = get_frame_size (); |
1783 | long reg_saved = 0; | |
fda41d93 | 1784 | int actual_fsize = compute_frame_size (size, ®_saved); |
ae180d84 JL |
1785 | rtx restore_regs[32]; |
1786 | rtx restore_all; | |
3ce15347 | 1787 | unsigned int num_restore; |
ae180d84 JL |
1788 | int code; |
1789 | int interrupt_handler = v850_interrupt_function_p (current_function_decl); | |
1790 | ||
1791 | /* Eliminate the initial stack stored by interrupt functions. */ | |
1792 | if (interrupt_handler) | |
1793 | { | |
1794 | actual_fsize -= INTERRUPT_FIXED_SAVE_SIZE; | |
29a65e3d | 1795 | if (((1L << LINK_POINTER_REGNUM) & reg_saved) != 0) |
ae180d84 JL |
1796 | actual_fsize -= INTERRUPT_ALL_SAVE_SIZE; |
1797 | } | |
1798 | ||
1799 | /* Cut off any dynamic stack created. */ | |
1800 | if (frame_pointer_needed) | |
1801 | emit_move_insn (stack_pointer_rtx, hard_frame_pointer_rtx); | |
1802 | ||
0e668396 | 1803 | /* Identify all of the saved registers. */ |
ae180d84 | 1804 | num_restore = 0; |
223a9d64 | 1805 | for (i = 1; i < 32; i++) |
ae180d84 JL |
1806 | { |
1807 | if (((1L << i) & reg_saved) != 0) | |
c5c76735 | 1808 | restore_regs[num_restore++] = gen_rtx_REG (Pmode, i); |
ae180d84 JL |
1809 | } |
1810 | ||
ae180d84 JL |
1811 | /* See if we have an insn that restores the particular registers we |
1812 | want to. */ | |
1813 | restore_all = NULL_RTX; | |
223a9d64 | 1814 | |
0e668396 NC |
1815 | if (TARGET_PROLOG_FUNCTION |
1816 | && num_restore > 0 | |
ae180d84 JL |
1817 | && !interrupt_handler) |
1818 | { | |
223a9d64 | 1819 | int alloc_stack = (4 * num_restore); |
ae180d84 | 1820 | |
ae180d84 | 1821 | /* Don't bother checking if we don't actually save any space. */ |
223a9d64 | 1822 | if (use_prolog_function (num_restore, actual_fsize)) |
ae180d84 | 1823 | { |
223a9d64 | 1824 | int offset; |
c5c76735 JL |
1825 | restore_all = gen_rtx_PARALLEL (VOIDmode, |
1826 | rtvec_alloc (num_restore + 2)); | |
3810076b | 1827 | XVECEXP (restore_all, 0, 0) = ret_rtx; |
ae180d84 | 1828 | XVECEXP (restore_all, 0, 1) |
c5c76735 JL |
1829 | = gen_rtx_SET (VOIDmode, stack_pointer_rtx, |
1830 | gen_rtx_PLUS (Pmode, | |
1831 | stack_pointer_rtx, | |
1832 | GEN_INT (alloc_stack))); | |
ae180d84 JL |
1833 | |
1834 | offset = alloc_stack - 4; | |
1835 | for (i = 0; i < num_restore; i++) | |
1836 | { | |
1837 | XVECEXP (restore_all, 0, i+2) | |
c5c76735 JL |
1838 | = gen_rtx_SET (VOIDmode, |
1839 | restore_regs[i], | |
1840 | gen_rtx_MEM (Pmode, | |
223a9d64 N |
1841 | gen_rtx_PLUS (Pmode, |
1842 | stack_pointer_rtx, | |
1843 | GEN_INT(offset)))); | |
ae180d84 JL |
1844 | offset -= 4; |
1845 | } | |
1846 | ||
df4ae160 | 1847 | code = recog (restore_all, NULL_RTX, NULL); |
0e668396 | 1848 | |
ae180d84 JL |
1849 | if (code >= 0) |
1850 | { | |
1851 | rtx insn; | |
1852 | ||
1853 | actual_fsize -= alloc_stack; | |
b12b5029 | 1854 | increment_stack (actual_fsize); |
ae180d84 JL |
1855 | |
1856 | insn = emit_jump_insn (restore_all); | |
1857 | INSN_CODE (insn) = code; | |
ae180d84 JL |
1858 | } |
1859 | else | |
1860 | restore_all = NULL_RTX; | |
1861 | } | |
1862 | } | |
1863 | ||
22f23985 | 1864 | /* If no epilogue save function is available, restore the registers the |
0e668396 | 1865 | old fashioned way (one by one). */ |
ae180d84 JL |
1866 | if (!restore_all) |
1867 | { | |
223a9d64 N |
1868 | unsigned int init_stack_free; |
1869 | ||
ae180d84 | 1870 | /* If the stack is large, we need to cut it down in 2 pieces. */ |
223a9d64 N |
1871 | if (interrupt_handler) |
1872 | init_stack_free = 0; | |
1873 | else if (actual_fsize && !CONST_OK_FOR_K (-actual_fsize)) | |
ae180d84 JL |
1874 | init_stack_free = 4 * num_restore; |
1875 | else | |
fda41d93 | 1876 | init_stack_free = (signed) actual_fsize; |
ae180d84 | 1877 | |
0e668396 | 1878 | /* Deallocate the rest of the stack if it is > 32K. */ |
5a82ecd9 | 1879 | if ((unsigned int) actual_fsize > init_stack_free) |
b12b5029 | 1880 | increment_stack (actual_fsize - init_stack_free); |
ae180d84 JL |
1881 | |
1882 | /* Special case interrupt functions that save all registers | |
1883 | for a call. */ | |
29a65e3d NC |
1884 | if (interrupt_handler && ((1L << LINK_POINTER_REGNUM) & reg_saved) != 0) |
1885 | { | |
223a9d64 | 1886 | if (! TARGET_DISABLE_CALLT) |
b4378319 NC |
1887 | emit_insn (gen_callt_restore_all_interrupt ()); |
1888 | else | |
1889 | emit_insn (gen_restore_all_interrupt ()); | |
29a65e3d | 1890 | } |
ae180d84 JL |
1891 | else |
1892 | { | |
0e668396 | 1893 | /* Restore registers from the beginning of the stack frame. */ |
223a9d64 | 1894 | int offset = init_stack_free - 4; |
ae180d84 JL |
1895 | |
1896 | /* Restore the return pointer first. */ | |
29a65e3d NC |
1897 | if (num_restore > 0 |
1898 | && REGNO (restore_regs [num_restore - 1]) == LINK_POINTER_REGNUM) | |
ae180d84 JL |
1899 | { |
1900 | emit_move_insn (restore_regs[--num_restore], | |
c5c76735 | 1901 | gen_rtx_MEM (SImode, |
0a81f074 RS |
1902 | plus_constant (Pmode, |
1903 | stack_pointer_rtx, | |
c5c76735 | 1904 | offset))); |
ae180d84 JL |
1905 | offset -= 4; |
1906 | } | |
1907 | ||
1908 | for (i = 0; i < num_restore; i++) | |
1909 | { | |
1910 | emit_move_insn (restore_regs[i], | |
c5c76735 | 1911 | gen_rtx_MEM (SImode, |
0a81f074 RS |
1912 | plus_constant (Pmode, |
1913 | stack_pointer_rtx, | |
c5c76735 | 1914 | offset))); |
ae180d84 | 1915 | |
c41c1387 | 1916 | emit_use (restore_regs[i]); |
ae180d84 JL |
1917 | offset -= 4; |
1918 | } | |
1919 | ||
1920 | /* Cut back the remainder of the stack. */ | |
b12b5029 | 1921 | increment_stack (init_stack_free); |
ae180d84 JL |
1922 | } |
1923 | ||
1924 | /* And return or use reti for interrupt handlers. */ | |
1925 | if (interrupt_handler) | |
b4378319 | 1926 | { |
e5db8f2f | 1927 | if (! TARGET_DISABLE_CALLT && (TARGET_V850E || TARGET_V850E2_ALL)) |
b4378319 NC |
1928 | emit_insn (gen_callt_return_interrupt ()); |
1929 | else | |
1930 | emit_jump_insn (gen_return_interrupt ()); | |
1931 | } | |
ae180d84 JL |
1932 | else if (actual_fsize) |
1933 | emit_jump_insn (gen_return_internal ()); | |
1934 | else | |
7323a100 | 1935 | emit_jump_insn (gen_return_simple ()); |
ae180d84 JL |
1936 | } |
1937 | ||
ae180d84 JL |
1938 | v850_interrupt_cache_p = FALSE; |
1939 | v850_interrupt_p = FALSE; | |
1940 | } | |
1941 | ||
ae180d84 | 1942 | /* Update the condition code from the insn. */ |
ae180d84 | 1943 | void |
59f3507d | 1944 | notice_update_cc (rtx body, rtx insn) |
ae180d84 JL |
1945 | { |
1946 | switch (get_attr_cc (insn)) | |
1947 | { | |
1948 | case CC_NONE: | |
1949 | /* Insn does not affect CC at all. */ | |
1950 | break; | |
1951 | ||
1952 | case CC_NONE_0HIT: | |
1953 | /* Insn does not change CC, but the 0'th operand has been changed. */ | |
1954 | if (cc_status.value1 != 0 | |
1ccbefce | 1955 | && reg_overlap_mentioned_p (recog_data.operand[0], cc_status.value1)) |
ae180d84 JL |
1956 | cc_status.value1 = 0; |
1957 | break; | |
1958 | ||
1959 | case CC_SET_ZN: | |
1ccbefce | 1960 | /* Insn sets the Z,N flags of CC to recog_data.operand[0]. |
ae180d84 JL |
1961 | V,C is in an unusable state. */ |
1962 | CC_STATUS_INIT; | |
1963 | cc_status.flags |= CC_OVERFLOW_UNUSABLE | CC_NO_CARRY; | |
1ccbefce | 1964 | cc_status.value1 = recog_data.operand[0]; |
ae180d84 JL |
1965 | break; |
1966 | ||
1967 | case CC_SET_ZNV: | |
1ccbefce | 1968 | /* Insn sets the Z,N,V flags of CC to recog_data.operand[0]. |
223a9d64 | 1969 | C is in an unusable state. */ |
ae180d84 JL |
1970 | CC_STATUS_INIT; |
1971 | cc_status.flags |= CC_NO_CARRY; | |
1ccbefce | 1972 | cc_status.value1 = recog_data.operand[0]; |
ae180d84 JL |
1973 | break; |
1974 | ||
1975 | case CC_COMPARE: | |
1976 | /* The insn is a compare instruction. */ | |
1977 | CC_STATUS_INIT; | |
1978 | cc_status.value1 = SET_SRC (body); | |
1979 | break; | |
1980 | ||
1981 | case CC_CLOBBER: | |
1982 | /* Insn doesn't leave CC in a usable state. */ | |
1983 | CC_STATUS_INIT; | |
1984 | break; | |
122603fa N |
1985 | |
1986 | default: | |
1987 | break; | |
ae180d84 JL |
1988 | } |
1989 | } | |
223a9d64 | 1990 | |
3ce15347 | 1991 | /* Retrieve the data area that has been chosen for the given decl. */ |
ae180d84 | 1992 | |
3ce15347 | 1993 | v850_data_area |
59f3507d | 1994 | v850_get_data_area (tree decl) |
3ce15347 | 1995 | { |
91d231cb | 1996 | if (lookup_attribute ("sda", DECL_ATTRIBUTES (decl)) != NULL_TREE) |
3ce15347 NC |
1997 | return DATA_AREA_SDA; |
1998 | ||
91d231cb | 1999 | if (lookup_attribute ("tda", DECL_ATTRIBUTES (decl)) != NULL_TREE) |
3ce15347 NC |
2000 | return DATA_AREA_TDA; |
2001 | ||
91d231cb | 2002 | if (lookup_attribute ("zda", DECL_ATTRIBUTES (decl)) != NULL_TREE) |
3ce15347 NC |
2003 | return DATA_AREA_ZDA; |
2004 | ||
2005 | return DATA_AREA_NORMAL; | |
2006 | } | |
ae180d84 | 2007 | |
3ce15347 NC |
2008 | /* Store the indicated data area in the decl's attributes. */ |
2009 | ||
2010 | static void | |
59f3507d | 2011 | v850_set_data_area (tree decl, v850_data_area data_area) |
3ce15347 NC |
2012 | { |
2013 | tree name; | |
2014 | ||
2015 | switch (data_area) | |
2016 | { | |
2017 | case DATA_AREA_SDA: name = get_identifier ("sda"); break; | |
2018 | case DATA_AREA_TDA: name = get_identifier ("tda"); break; | |
2019 | case DATA_AREA_ZDA: name = get_identifier ("zda"); break; | |
2020 | default: | |
2021 | return; | |
2022 | } | |
2023 | ||
91d231cb JM |
2024 | DECL_ATTRIBUTES (decl) = tree_cons |
2025 | (name, NULL, DECL_ATTRIBUTES (decl)); | |
3ce15347 NC |
2026 | } |
2027 | \f | |
91d231cb JM |
2028 | /* Handle an "interrupt" attribute; arguments as in |
2029 | struct attribute_spec.handler. */ | |
2030 | static tree | |
59f3507d NN |
2031 | v850_handle_interrupt_attribute (tree * node, |
2032 | tree name, | |
2033 | tree args ATTRIBUTE_UNUSED, | |
2034 | int flags ATTRIBUTE_UNUSED, | |
2035 | bool * no_add_attrs) | |
91d231cb JM |
2036 | { |
2037 | if (TREE_CODE (*node) != FUNCTION_DECL) | |
2038 | { | |
29d08eba JM |
2039 | warning (OPT_Wattributes, "%qE attribute only applies to functions", |
2040 | name); | |
91d231cb JM |
2041 | *no_add_attrs = true; |
2042 | } | |
2043 | ||
2044 | return NULL_TREE; | |
2045 | } | |
2046 | ||
2047 | /* Handle a "sda", "tda" or "zda" attribute; arguments as in | |
2048 | struct attribute_spec.handler. */ | |
2049 | static tree | |
59f3507d NN |
2050 | v850_handle_data_area_attribute (tree* node, |
2051 | tree name, | |
2052 | tree args ATTRIBUTE_UNUSED, | |
2053 | int flags ATTRIBUTE_UNUSED, | |
2054 | bool * no_add_attrs) | |
ae180d84 | 2055 | { |
3ce15347 NC |
2056 | v850_data_area data_area; |
2057 | v850_data_area area; | |
91d231cb | 2058 | tree decl = *node; |
ae180d84 | 2059 | |
3ce15347 | 2060 | /* Implement data area attribute. */ |
91d231cb | 2061 | if (is_attribute_p ("sda", name)) |
3ce15347 | 2062 | data_area = DATA_AREA_SDA; |
91d231cb | 2063 | else if (is_attribute_p ("tda", name)) |
3ce15347 | 2064 | data_area = DATA_AREA_TDA; |
91d231cb | 2065 | else if (is_attribute_p ("zda", name)) |
3ce15347 NC |
2066 | data_area = DATA_AREA_ZDA; |
2067 | else | |
f2f84cba | 2068 | gcc_unreachable (); |
3ce15347 NC |
2069 | |
2070 | switch (TREE_CODE (decl)) | |
2071 | { | |
2072 | case VAR_DECL: | |
2073 | if (current_function_decl != NULL_TREE) | |
91d231cb | 2074 | { |
c5d75364 MLI |
2075 | error_at (DECL_SOURCE_LOCATION (decl), |
2076 | "data area attributes cannot be specified for " | |
2077 | "local variables"); | |
91d231cb JM |
2078 | *no_add_attrs = true; |
2079 | } | |
2080 | ||
3ce15347 NC |
2081 | /* Drop through. */ |
2082 | ||
2083 | case FUNCTION_DECL: | |
2084 | area = v850_get_data_area (decl); | |
2085 | if (area != DATA_AREA_NORMAL && data_area != area) | |
91d231cb | 2086 | { |
dee15844 JM |
2087 | error ("data area of %q+D conflicts with previous declaration", |
2088 | decl); | |
91d231cb JM |
2089 | *no_add_attrs = true; |
2090 | } | |
2091 | break; | |
3ce15347 NC |
2092 | |
2093 | default: | |
2094 | break; | |
2095 | } | |
91d231cb JM |
2096 | |
2097 | return NULL_TREE; | |
ae180d84 JL |
2098 | } |
2099 | ||
2100 | \f | |
2101 | /* Return nonzero if FUNC is an interrupt function as specified | |
2102 | by the "interrupt" attribute. */ | |
2103 | ||
2104 | int | |
59f3507d | 2105 | v850_interrupt_function_p (tree func) |
ae180d84 JL |
2106 | { |
2107 | tree a; | |
2108 | int ret = 0; | |
2109 | ||
2110 | if (v850_interrupt_cache_p) | |
2111 | return v850_interrupt_p; | |
2112 | ||
2113 | if (TREE_CODE (func) != FUNCTION_DECL) | |
2114 | return 0; | |
2115 | ||
91d231cb | 2116 | a = lookup_attribute ("interrupt_handler", DECL_ATTRIBUTES (func)); |
ae180d84 JL |
2117 | if (a != NULL_TREE) |
2118 | ret = 1; | |
2119 | ||
2120 | else | |
2121 | { | |
91d231cb | 2122 | a = lookup_attribute ("interrupt", DECL_ATTRIBUTES (func)); |
ae180d84 JL |
2123 | ret = a != NULL_TREE; |
2124 | } | |
2125 | ||
2126 | /* Its not safe to trust global variables until after function inlining has | |
2127 | been done. */ | |
2128 | if (reload_completed | reload_in_progress) | |
2129 | v850_interrupt_p = ret; | |
2130 | ||
2131 | return ret; | |
2132 | } | |
2133 | ||
2134 | \f | |
fb49053f | 2135 | static void |
59f3507d | 2136 | v850_encode_data_area (tree decl, rtx symbol) |
ae180d84 | 2137 | { |
50d1ff6a | 2138 | int flags; |
3ce15347 | 2139 | |
839a4992 | 2140 | /* Map explicit sections into the appropriate attribute */ |
3ce15347 NC |
2141 | if (v850_get_data_area (decl) == DATA_AREA_NORMAL) |
2142 | { | |
2143 | if (DECL_SECTION_NAME (decl)) | |
2144 | { | |
3cce094d | 2145 | const char *name = TREE_STRING_POINTER (DECL_SECTION_NAME (decl)); |
3ce15347 NC |
2146 | |
2147 | if (streq (name, ".zdata") || streq (name, ".zbss")) | |
2148 | v850_set_data_area (decl, DATA_AREA_ZDA); | |
2149 | ||
2150 | else if (streq (name, ".sdata") || streq (name, ".sbss")) | |
2151 | v850_set_data_area (decl, DATA_AREA_SDA); | |
2152 | ||
2153 | else if (streq (name, ".tdata")) | |
2154 | v850_set_data_area (decl, DATA_AREA_TDA); | |
2155 | } | |
2156 | ||
2157 | /* If no attribute, support -m{zda,sda,tda}=n */ | |
2158 | else | |
2159 | { | |
2160 | int size = int_size_in_bytes (TREE_TYPE (decl)); | |
2161 | if (size <= 0) | |
2162 | ; | |
2163 | ||
4a8d3d91 | 2164 | else if (size <= small_memory_max [(int) SMALL_MEMORY_TDA]) |
3ce15347 NC |
2165 | v850_set_data_area (decl, DATA_AREA_TDA); |
2166 | ||
4a8d3d91 | 2167 | else if (size <= small_memory_max [(int) SMALL_MEMORY_SDA]) |
3ce15347 NC |
2168 | v850_set_data_area (decl, DATA_AREA_SDA); |
2169 | ||
4a8d3d91 | 2170 | else if (size <= small_memory_max [(int) SMALL_MEMORY_ZDA]) |
3ce15347 NC |
2171 | v850_set_data_area (decl, DATA_AREA_ZDA); |
2172 | } | |
2173 | ||
2174 | if (v850_get_data_area (decl) == DATA_AREA_NORMAL) | |
2175 | return; | |
2176 | } | |
2177 | ||
50d1ff6a | 2178 | flags = SYMBOL_REF_FLAGS (symbol); |
3ce15347 NC |
2179 | switch (v850_get_data_area (decl)) |
2180 | { | |
50d1ff6a RH |
2181 | case DATA_AREA_ZDA: flags |= SYMBOL_FLAG_ZDA; break; |
2182 | case DATA_AREA_TDA: flags |= SYMBOL_FLAG_TDA; break; | |
2183 | case DATA_AREA_SDA: flags |= SYMBOL_FLAG_SDA; break; | |
f2f84cba | 2184 | default: gcc_unreachable (); |
3ce15347 | 2185 | } |
50d1ff6a | 2186 | SYMBOL_REF_FLAGS (symbol) = flags; |
ae180d84 | 2187 | } |
145870b5 | 2188 | |
fb49053f | 2189 | static void |
59f3507d | 2190 | v850_encode_section_info (tree decl, rtx rtl, int first) |
fb49053f | 2191 | { |
c6a2438a | 2192 | default_encode_section_info (decl, rtl, first); |
50d1ff6a RH |
2193 | |
2194 | if (TREE_CODE (decl) == VAR_DECL | |
fb49053f | 2195 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
c6a2438a | 2196 | v850_encode_data_area (decl, XEXP (rtl, 0)); |
fb49053f RH |
2197 | } |
2198 | ||
145870b5 NC |
2199 | /* Construct a JR instruction to a routine that will perform the equivalent of |
2200 | the RTL passed in as an argument. This RTL is a function epilogue that | |
2201 | pops registers off the stack and possibly releases some extra stack space | |
2202 | as well. The code has already verified that the RTL matches these | |
2203 | requirements. */ | |
223a9d64 | 2204 | |
145870b5 | 2205 | char * |
59f3507d | 2206 | construct_restore_jr (rtx op) |
145870b5 NC |
2207 | { |
2208 | int count = XVECLEN (op, 0); | |
2209 | int stack_bytes; | |
2210 | unsigned long int mask; | |
2211 | unsigned long int first; | |
2212 | unsigned long int last; | |
2213 | int i; | |
2214 | static char buff [100]; /* XXX */ | |
2215 | ||
2216 | if (count <= 2) | |
2217 | { | |
ab532386 | 2218 | error ("bogus JR construction: %d", count); |
145870b5 NC |
2219 | return NULL; |
2220 | } | |
2221 | ||
2222 | /* Work out how many bytes to pop off the stack before retrieving | |
2223 | registers. */ | |
f2f84cba NS |
2224 | gcc_assert (GET_CODE (XVECEXP (op, 0, 1)) == SET); |
2225 | gcc_assert (GET_CODE (SET_SRC (XVECEXP (op, 0, 1))) == PLUS); | |
2226 | gcc_assert (GET_CODE (XEXP (SET_SRC (XVECEXP (op, 0, 1)), 1)) == CONST_INT); | |
145870b5 NC |
2227 | |
2228 | stack_bytes = INTVAL (XEXP (SET_SRC (XVECEXP (op, 0, 1)), 1)); | |
2229 | ||
d4de0221 | 2230 | /* Each pop will remove 4 bytes from the stack.... */ |
145870b5 NC |
2231 | stack_bytes -= (count - 2) * 4; |
2232 | ||
2233 | /* Make sure that the amount we are popping either 0 or 16 bytes. */ | |
223a9d64 | 2234 | if (stack_bytes != 0) |
145870b5 | 2235 | { |
c725bd79 | 2236 | error ("bad amount of stack space removal: %d", stack_bytes); |
145870b5 NC |
2237 | return NULL; |
2238 | } | |
2239 | ||
2240 | /* Now compute the bit mask of registers to push. */ | |
2241 | mask = 0; | |
2242 | for (i = 2; i < count; i++) | |
2243 | { | |
2244 | rtx vector_element = XVECEXP (op, 0, i); | |
2245 | ||
f2f84cba NS |
2246 | gcc_assert (GET_CODE (vector_element) == SET); |
2247 | gcc_assert (GET_CODE (SET_DEST (vector_element)) == REG); | |
2248 | gcc_assert (register_is_ok_for_epilogue (SET_DEST (vector_element), | |
2249 | SImode)); | |
145870b5 NC |
2250 | |
2251 | mask |= 1 << REGNO (SET_DEST (vector_element)); | |
2252 | } | |
2253 | ||
2254 | /* Scan for the first register to pop. */ | |
2255 | for (first = 0; first < 32; first++) | |
2256 | { | |
2257 | if (mask & (1 << first)) | |
2258 | break; | |
2259 | } | |
2260 | ||
f2f84cba | 2261 | gcc_assert (first < 32); |
145870b5 NC |
2262 | |
2263 | /* Discover the last register to pop. */ | |
29a65e3d | 2264 | if (mask & (1 << LINK_POINTER_REGNUM)) |
145870b5 | 2265 | { |
29a65e3d | 2266 | last = LINK_POINTER_REGNUM; |
145870b5 NC |
2267 | } |
2268 | else | |
2269 | { | |
f2f84cba NS |
2270 | gcc_assert (!stack_bytes); |
2271 | gcc_assert (mask & (1 << 29)); | |
145870b5 NC |
2272 | |
2273 | last = 29; | |
2274 | } | |
2275 | ||
323d8e7b JL |
2276 | /* Note, it is possible to have gaps in the register mask. |
2277 | We ignore this here, and generate a JR anyway. We will | |
3ce15347 | 2278 | be popping more registers than is strictly necessary, but |
323d8e7b JL |
2279 | it does save code space. */ |
2280 | ||
be1d3f93 NC |
2281 | if (TARGET_LONG_CALLS) |
2282 | { | |
2283 | char name[40]; | |
2284 | ||
2285 | if (first == last) | |
2286 | sprintf (name, "__return_%s", reg_names [first]); | |
2287 | else | |
2288 | sprintf (name, "__return_%s_%s", reg_names [first], reg_names [last]); | |
2289 | ||
2290 | sprintf (buff, "movhi hi(%s), r0, r6\n\tmovea lo(%s), r6, r6\n\tjmp r6", | |
2291 | name, name); | |
2292 | } | |
145870b5 | 2293 | else |
be1d3f93 NC |
2294 | { |
2295 | if (first == last) | |
2296 | sprintf (buff, "jr __return_%s", reg_names [first]); | |
2297 | else | |
2298 | sprintf (buff, "jr __return_%s_%s", reg_names [first], reg_names [last]); | |
2299 | } | |
2300 | ||
145870b5 NC |
2301 | return buff; |
2302 | } | |
2303 | ||
2304 | ||
145870b5 NC |
2305 | /* Construct a JARL instruction to a routine that will perform the equivalent |
2306 | of the RTL passed as a parameter. This RTL is a function prologue that | |
2307 | saves some of the registers r20 - r31 onto the stack, and possibly acquires | |
2308 | some stack space as well. The code has already verified that the RTL | |
2309 | matches these requirements. */ | |
2310 | char * | |
59f3507d | 2311 | construct_save_jarl (rtx op) |
145870b5 NC |
2312 | { |
2313 | int count = XVECLEN (op, 0); | |
2314 | int stack_bytes; | |
2315 | unsigned long int mask; | |
2316 | unsigned long int first; | |
2317 | unsigned long int last; | |
2318 | int i; | |
2319 | static char buff [100]; /* XXX */ | |
2320 | ||
223a9d64 | 2321 | if (count <= (TARGET_LONG_CALLS ? 3 : 2)) |
145870b5 | 2322 | { |
d8a07487 | 2323 | error ("bogus JARL construction: %d", count); |
145870b5 NC |
2324 | return NULL; |
2325 | } | |
2326 | ||
2327 | /* Paranoia. */ | |
f2f84cba NS |
2328 | gcc_assert (GET_CODE (XVECEXP (op, 0, 0)) == SET); |
2329 | gcc_assert (GET_CODE (SET_SRC (XVECEXP (op, 0, 0))) == PLUS); | |
2330 | gcc_assert (GET_CODE (XEXP (SET_SRC (XVECEXP (op, 0, 0)), 0)) == REG); | |
2331 | gcc_assert (GET_CODE (XEXP (SET_SRC (XVECEXP (op, 0, 0)), 1)) == CONST_INT); | |
145870b5 NC |
2332 | |
2333 | /* Work out how many bytes to push onto the stack after storing the | |
2334 | registers. */ | |
2335 | stack_bytes = INTVAL (XEXP (SET_SRC (XVECEXP (op, 0, 0)), 1)); | |
2336 | ||
d4de0221 | 2337 | /* Each push will put 4 bytes from the stack.... */ |
fdf3bb57 | 2338 | stack_bytes += (count - (TARGET_LONG_CALLS ? 3 : 2)) * 4; |
145870b5 NC |
2339 | |
2340 | /* Make sure that the amount we are popping either 0 or 16 bytes. */ | |
223a9d64 | 2341 | if (stack_bytes != 0) |
145870b5 | 2342 | { |
c725bd79 | 2343 | error ("bad amount of stack space removal: %d", stack_bytes); |
145870b5 NC |
2344 | return NULL; |
2345 | } | |
2346 | ||
2347 | /* Now compute the bit mask of registers to push. */ | |
2348 | mask = 0; | |
fdf3bb57 | 2349 | for (i = 1; i < count - (TARGET_LONG_CALLS ? 2 : 1); i++) |
145870b5 NC |
2350 | { |
2351 | rtx vector_element = XVECEXP (op, 0, i); | |
2352 | ||
f2f84cba NS |
2353 | gcc_assert (GET_CODE (vector_element) == SET); |
2354 | gcc_assert (GET_CODE (SET_SRC (vector_element)) == REG); | |
2355 | gcc_assert (register_is_ok_for_epilogue (SET_SRC (vector_element), | |
2356 | SImode)); | |
145870b5 NC |
2357 | |
2358 | mask |= 1 << REGNO (SET_SRC (vector_element)); | |
2359 | } | |
2360 | ||
2361 | /* Scan for the first register to push. */ | |
2362 | for (first = 0; first < 32; first++) | |
2363 | { | |
2364 | if (mask & (1 << first)) | |
2365 | break; | |
2366 | } | |
2367 | ||
f2f84cba | 2368 | gcc_assert (first < 32); |
145870b5 NC |
2369 | |
2370 | /* Discover the last register to push. */ | |
29a65e3d | 2371 | if (mask & (1 << LINK_POINTER_REGNUM)) |
145870b5 | 2372 | { |
29a65e3d | 2373 | last = LINK_POINTER_REGNUM; |
145870b5 NC |
2374 | } |
2375 | else | |
2376 | { | |
f2f84cba NS |
2377 | gcc_assert (!stack_bytes); |
2378 | gcc_assert (mask & (1 << 29)); | |
145870b5 NC |
2379 | |
2380 | last = 29; | |
2381 | } | |
2382 | ||
323d8e7b JL |
2383 | /* Note, it is possible to have gaps in the register mask. |
2384 | We ignore this here, and generate a JARL anyway. We will | |
3ce15347 | 2385 | be pushing more registers than is strictly necessary, but |
323d8e7b JL |
2386 | it does save code space. */ |
2387 | ||
be1d3f93 NC |
2388 | if (TARGET_LONG_CALLS) |
2389 | { | |
2390 | char name[40]; | |
2391 | ||
2392 | if (first == last) | |
2393 | sprintf (name, "__save_%s", reg_names [first]); | |
2394 | else | |
2395 | sprintf (name, "__save_%s_%s", reg_names [first], reg_names [last]); | |
2396 | ||
2397 | sprintf (buff, "movhi hi(%s), r0, r11\n\tmovea lo(%s), r11, r11\n\tjarl .+4, r10\n\tadd 4, r10\n\tjmp r11", | |
2398 | name, name); | |
2399 | } | |
145870b5 | 2400 | else |
be1d3f93 NC |
2401 | { |
2402 | if (first == last) | |
2403 | sprintf (buff, "jarl __save_%s, r10", reg_names [first]); | |
2404 | else | |
2405 | sprintf (buff, "jarl __save_%s_%s, r10", reg_names [first], | |
2406 | reg_names [last]); | |
2407 | } | |
145870b5 NC |
2408 | |
2409 | return buff; | |
2410 | } | |
2411 | ||
3ce15347 | 2412 | /* A version of asm_output_aligned_bss() that copes with the special |
d4de0221 | 2413 | data areas of the v850. */ |
3ce15347 | 2414 | void |
59f3507d NN |
2415 | v850_output_aligned_bss (FILE * file, |
2416 | tree decl, | |
2417 | const char * name, | |
ea40ba9c | 2418 | unsigned HOST_WIDE_INT size, |
59f3507d | 2419 | int align) |
3ce15347 | 2420 | { |
3ce15347 NC |
2421 | switch (v850_get_data_area (decl)) |
2422 | { | |
2423 | case DATA_AREA_ZDA: | |
d6b5193b | 2424 | switch_to_section (zbss_section); |
3ce15347 NC |
2425 | break; |
2426 | ||
2427 | case DATA_AREA_SDA: | |
d6b5193b | 2428 | switch_to_section (sbss_section); |
3ce15347 NC |
2429 | break; |
2430 | ||
2431 | case DATA_AREA_TDA: | |
d6b5193b | 2432 | switch_to_section (tdata_section); |
3ce15347 NC |
2433 | |
2434 | default: | |
d6b5193b | 2435 | switch_to_section (bss_section); |
3ce15347 NC |
2436 | break; |
2437 | } | |
2438 | ||
2439 | ASM_OUTPUT_ALIGN (file, floor_log2 (align / BITS_PER_UNIT)); | |
2440 | #ifdef ASM_DECLARE_OBJECT_NAME | |
2441 | last_assemble_variable_decl = decl; | |
2442 | ASM_DECLARE_OBJECT_NAME (file, name, decl); | |
2443 | #else | |
2444 | /* Standard thing is just output label for the object. */ | |
2445 | ASM_OUTPUT_LABEL (file, name); | |
2446 | #endif /* ASM_DECLARE_OBJECT_NAME */ | |
2447 | ASM_OUTPUT_SKIP (file, size ? size : 1); | |
2448 | } | |
2449 | ||
2450 | /* Called via the macro ASM_OUTPUT_DECL_COMMON */ | |
2451 | void | |
59f3507d NN |
2452 | v850_output_common (FILE * file, |
2453 | tree decl, | |
2454 | const char * name, | |
2455 | int size, | |
2456 | int align) | |
3ce15347 NC |
2457 | { |
2458 | if (decl == NULL_TREE) | |
2459 | { | |
b9f7d63e | 2460 | fprintf (file, "%s", COMMON_ASM_OP); |
3ce15347 NC |
2461 | } |
2462 | else | |
2463 | { | |
2464 | switch (v850_get_data_area (decl)) | |
2465 | { | |
2466 | case DATA_AREA_ZDA: | |
b9f7d63e | 2467 | fprintf (file, "%s", ZCOMMON_ASM_OP); |
3ce15347 NC |
2468 | break; |
2469 | ||
2470 | case DATA_AREA_SDA: | |
b9f7d63e | 2471 | fprintf (file, "%s", SCOMMON_ASM_OP); |
3ce15347 NC |
2472 | break; |
2473 | ||
2474 | case DATA_AREA_TDA: | |
b9f7d63e | 2475 | fprintf (file, "%s", TCOMMON_ASM_OP); |
3ce15347 NC |
2476 | break; |
2477 | ||
2478 | default: | |
b9f7d63e | 2479 | fprintf (file, "%s", COMMON_ASM_OP); |
3ce15347 NC |
2480 | break; |
2481 | } | |
2482 | } | |
2483 | ||
2484 | assemble_name (file, name); | |
2485 | fprintf (file, ",%u,%u\n", size, align / BITS_PER_UNIT); | |
2486 | } | |
2487 | ||
2488 | /* Called via the macro ASM_OUTPUT_DECL_LOCAL */ | |
2489 | void | |
59f3507d NN |
2490 | v850_output_local (FILE * file, |
2491 | tree decl, | |
2492 | const char * name, | |
2493 | int size, | |
2494 | int align) | |
3ce15347 | 2495 | { |
b9f7d63e | 2496 | fprintf (file, "%s", LOCAL_ASM_OP); |
3ce15347 NC |
2497 | assemble_name (file, name); |
2498 | fprintf (file, "\n"); | |
2499 | ||
2500 | ASM_OUTPUT_ALIGNED_DECL_COMMON (file, decl, name, size, align); | |
2501 | } | |
3ce15347 NC |
2502 | |
2503 | /* Add data area to the given declaration if a ghs data area pragma is | |
2504 | currently in effect (#pragma ghs startXXX/endXXX). */ | |
12a68f1f | 2505 | static void |
59f3507d | 2506 | v850_insert_attributes (tree decl, tree * attr_ptr ATTRIBUTE_UNUSED ) |
3ce15347 NC |
2507 | { |
2508 | if (data_area_stack | |
2509 | && data_area_stack->data_area | |
2510 | && current_function_decl == NULL_TREE | |
2511 | && (TREE_CODE (decl) == VAR_DECL || TREE_CODE (decl) == CONST_DECL) | |
2512 | && v850_get_data_area (decl) == DATA_AREA_NORMAL) | |
2513 | v850_set_data_area (decl, data_area_stack->data_area); | |
2514 | ||
4912a07c | 2515 | /* Initialize the default names of the v850 specific sections, |
3ce15347 NC |
2516 | if this has not been done before. */ |
2517 | ||
2518 | if (GHS_default_section_names [(int) GHS_SECTION_KIND_SDATA] == NULL) | |
2519 | { | |
2520 | GHS_default_section_names [(int) GHS_SECTION_KIND_SDATA] | |
2521 | = build_string (sizeof (".sdata")-1, ".sdata"); | |
2522 | ||
2523 | GHS_default_section_names [(int) GHS_SECTION_KIND_ROSDATA] | |
2524 | = build_string (sizeof (".rosdata")-1, ".rosdata"); | |
2525 | ||
2526 | GHS_default_section_names [(int) GHS_SECTION_KIND_TDATA] | |
2527 | = build_string (sizeof (".tdata")-1, ".tdata"); | |
2528 | ||
2529 | GHS_default_section_names [(int) GHS_SECTION_KIND_ZDATA] | |
2530 | = build_string (sizeof (".zdata")-1, ".zdata"); | |
2531 | ||
2532 | GHS_default_section_names [(int) GHS_SECTION_KIND_ROZDATA] | |
2533 | = build_string (sizeof (".rozdata")-1, ".rozdata"); | |
2534 | } | |
2535 | ||
2536 | if (current_function_decl == NULL_TREE | |
2537 | && (TREE_CODE (decl) == VAR_DECL | |
2538 | || TREE_CODE (decl) == CONST_DECL | |
2539 | || TREE_CODE (decl) == FUNCTION_DECL) | |
2540 | && (!DECL_EXTERNAL (decl) || DECL_INITIAL (decl)) | |
2541 | && !DECL_SECTION_NAME (decl)) | |
2542 | { | |
2543 | enum GHS_section_kind kind = GHS_SECTION_KIND_DEFAULT; | |
2544 | tree chosen_section; | |
2545 | ||
2546 | if (TREE_CODE (decl) == FUNCTION_DECL) | |
2547 | kind = GHS_SECTION_KIND_TEXT; | |
2548 | else | |
2549 | { | |
d4de0221 | 2550 | /* First choose a section kind based on the data area of the decl. */ |
3ce15347 NC |
2551 | switch (v850_get_data_area (decl)) |
2552 | { | |
2553 | default: | |
f2f84cba | 2554 | gcc_unreachable (); |
3ce15347 NC |
2555 | |
2556 | case DATA_AREA_SDA: | |
2557 | kind = ((TREE_READONLY (decl)) | |
2558 | ? GHS_SECTION_KIND_ROSDATA | |
2559 | : GHS_SECTION_KIND_SDATA); | |
2560 | break; | |
2561 | ||
2562 | case DATA_AREA_TDA: | |
2563 | kind = GHS_SECTION_KIND_TDATA; | |
2564 | break; | |
2565 | ||
2566 | case DATA_AREA_ZDA: | |
2567 | kind = ((TREE_READONLY (decl)) | |
2568 | ? GHS_SECTION_KIND_ROZDATA | |
2569 | : GHS_SECTION_KIND_ZDATA); | |
2570 | break; | |
2571 | ||
2572 | case DATA_AREA_NORMAL: /* default data area */ | |
2573 | if (TREE_READONLY (decl)) | |
2574 | kind = GHS_SECTION_KIND_RODATA; | |
2575 | else if (DECL_INITIAL (decl)) | |
2576 | kind = GHS_SECTION_KIND_DATA; | |
2577 | else | |
2578 | kind = GHS_SECTION_KIND_BSS; | |
2579 | } | |
2580 | } | |
2581 | ||
2582 | /* Now, if the section kind has been explicitly renamed, | |
d4de0221 | 2583 | then attach a section attribute. */ |
3ce15347 NC |
2584 | chosen_section = GHS_current_section_names [(int) kind]; |
2585 | ||
2586 | /* Otherwise, if this kind of section needs an explicit section | |
d4de0221 | 2587 | attribute, then also attach one. */ |
3ce15347 NC |
2588 | if (chosen_section == NULL) |
2589 | chosen_section = GHS_default_section_names [(int) kind]; | |
2590 | ||
2591 | if (chosen_section) | |
2592 | { | |
2593 | /* Only set the section name if specified by a pragma, because | |
2594 | otherwise it will force those variables to get allocated storage | |
2595 | in this module, rather than by the linker. */ | |
2596 | DECL_SECTION_NAME (decl) = chosen_section; | |
2597 | } | |
2598 | } | |
2599 | } | |
b4378319 | 2600 | |
b4378319 NC |
2601 | /* Construct a DISPOSE instruction that is the equivalent of |
2602 | the given RTX. We have already verified that this should | |
2603 | be possible. */ | |
2604 | ||
2605 | char * | |
59f3507d | 2606 | construct_dispose_instruction (rtx op) |
b4378319 NC |
2607 | { |
2608 | int count = XVECLEN (op, 0); | |
2609 | int stack_bytes; | |
2610 | unsigned long int mask; | |
2611 | int i; | |
2612 | static char buff[ 100 ]; /* XXX */ | |
2613 | int use_callt = 0; | |
2614 | ||
2615 | if (count <= 2) | |
2616 | { | |
ab532386 | 2617 | error ("bogus DISPOSE construction: %d", count); |
b4378319 NC |
2618 | return NULL; |
2619 | } | |
2620 | ||
2621 | /* Work out how many bytes to pop off the | |
2622 | stack before retrieving registers. */ | |
f2f84cba NS |
2623 | gcc_assert (GET_CODE (XVECEXP (op, 0, 1)) == SET); |
2624 | gcc_assert (GET_CODE (SET_SRC (XVECEXP (op, 0, 1))) == PLUS); | |
2625 | gcc_assert (GET_CODE (XEXP (SET_SRC (XVECEXP (op, 0, 1)), 1)) == CONST_INT); | |
b4378319 NC |
2626 | |
2627 | stack_bytes = INTVAL (XEXP (SET_SRC (XVECEXP (op, 0, 1)), 1)); | |
2628 | ||
d4de0221 | 2629 | /* Each pop will remove 4 bytes from the stack.... */ |
b4378319 NC |
2630 | stack_bytes -= (count - 2) * 4; |
2631 | ||
2632 | /* Make sure that the amount we are popping | |
2633 | will fit into the DISPOSE instruction. */ | |
2634 | if (stack_bytes > 128) | |
2635 | { | |
ab532386 | 2636 | error ("too much stack space to dispose of: %d", stack_bytes); |
b4378319 NC |
2637 | return NULL; |
2638 | } | |
2639 | ||
2640 | /* Now compute the bit mask of registers to push. */ | |
2641 | mask = 0; | |
2642 | ||
2643 | for (i = 2; i < count; i++) | |
2644 | { | |
2645 | rtx vector_element = XVECEXP (op, 0, i); | |
2646 | ||
f2f84cba NS |
2647 | gcc_assert (GET_CODE (vector_element) == SET); |
2648 | gcc_assert (GET_CODE (SET_DEST (vector_element)) == REG); | |
2649 | gcc_assert (register_is_ok_for_epilogue (SET_DEST (vector_element), | |
2650 | SImode)); | |
b4378319 NC |
2651 | |
2652 | if (REGNO (SET_DEST (vector_element)) == 2) | |
2653 | use_callt = 1; | |
2654 | else | |
2655 | mask |= 1 << REGNO (SET_DEST (vector_element)); | |
2656 | } | |
2657 | ||
2658 | if (! TARGET_DISABLE_CALLT | |
223a9d64 | 2659 | && (use_callt || stack_bytes == 0)) |
b4378319 NC |
2660 | { |
2661 | if (use_callt) | |
2662 | { | |
2663 | sprintf (buff, "callt ctoff(__callt_return_r2_r%d)", (mask & (1 << 31)) ? 31 : 29); | |
2664 | return buff; | |
2665 | } | |
2666 | else | |
2667 | { | |
2668 | for (i = 20; i < 32; i++) | |
2669 | if (mask & (1 << i)) | |
2670 | break; | |
2671 | ||
2672 | if (i == 31) | |
2673 | sprintf (buff, "callt ctoff(__callt_return_r31c)"); | |
2674 | else | |
223a9d64 N |
2675 | sprintf (buff, "callt ctoff(__callt_return_r%d_r%s)", |
2676 | i, (mask & (1 << 31)) ? "31c" : "29"); | |
b4378319 NC |
2677 | } |
2678 | } | |
2679 | else | |
2680 | { | |
2681 | static char regs [100]; /* XXX */ | |
2682 | int done_one; | |
2683 | ||
2684 | /* Generate the DISPOSE instruction. Note we could just issue the | |
2685 | bit mask as a number as the assembler can cope with this, but for | |
2686 | the sake of our readers we turn it into a textual description. */ | |
2687 | regs[0] = 0; | |
2688 | done_one = 0; | |
2689 | ||
2690 | for (i = 20; i < 32; i++) | |
2691 | { | |
2692 | if (mask & (1 << i)) | |
2693 | { | |
2694 | int first; | |
2695 | ||
2696 | if (done_one) | |
2697 | strcat (regs, ", "); | |
2698 | else | |
2699 | done_one = 1; | |
2700 | ||
2701 | first = i; | |
2702 | strcat (regs, reg_names[ first ]); | |
2703 | ||
2704 | for (i++; i < 32; i++) | |
2705 | if ((mask & (1 << i)) == 0) | |
2706 | break; | |
2707 | ||
2708 | if (i > first + 1) | |
2709 | { | |
2710 | strcat (regs, " - "); | |
2711 | strcat (regs, reg_names[ i - 1 ] ); | |
2712 | } | |
2713 | } | |
2714 | } | |
2715 | ||
2716 | sprintf (buff, "dispose %d {%s}, r31", stack_bytes / 4, regs); | |
2717 | } | |
2718 | ||
2719 | return buff; | |
2720 | } | |
2721 | ||
b4378319 NC |
2722 | /* Construct a PREPARE instruction that is the equivalent of |
2723 | the given RTL. We have already verified that this should | |
2724 | be possible. */ | |
2725 | ||
2726 | char * | |
59f3507d | 2727 | construct_prepare_instruction (rtx op) |
b4378319 | 2728 | { |
223a9d64 | 2729 | int count; |
b4378319 NC |
2730 | int stack_bytes; |
2731 | unsigned long int mask; | |
2732 | int i; | |
2733 | static char buff[ 100 ]; /* XXX */ | |
2734 | int use_callt = 0; | |
2735 | ||
223a9d64 | 2736 | if (XVECLEN (op, 0) <= 1) |
b4378319 | 2737 | { |
223a9d64 | 2738 | error ("bogus PREPEARE construction: %d", XVECLEN (op, 0)); |
b4378319 NC |
2739 | return NULL; |
2740 | } | |
2741 | ||
2742 | /* Work out how many bytes to push onto | |
2743 | the stack after storing the registers. */ | |
f2f84cba NS |
2744 | gcc_assert (GET_CODE (XVECEXP (op, 0, 0)) == SET); |
2745 | gcc_assert (GET_CODE (SET_SRC (XVECEXP (op, 0, 0))) == PLUS); | |
2746 | gcc_assert (GET_CODE (XEXP (SET_SRC (XVECEXP (op, 0, 0)), 1)) == CONST_INT); | |
b4378319 NC |
2747 | |
2748 | stack_bytes = INTVAL (XEXP (SET_SRC (XVECEXP (op, 0, 0)), 1)); | |
2749 | ||
b4378319 NC |
2750 | |
2751 | /* Make sure that the amount we are popping | |
2752 | will fit into the DISPOSE instruction. */ | |
2753 | if (stack_bytes < -128) | |
2754 | { | |
ab532386 | 2755 | error ("too much stack space to prepare: %d", stack_bytes); |
b4378319 NC |
2756 | return NULL; |
2757 | } | |
2758 | ||
2759 | /* Now compute the bit mask of registers to push. */ | |
223a9d64 | 2760 | count = 0; |
b4378319 | 2761 | mask = 0; |
223a9d64 | 2762 | for (i = 1; i < XVECLEN (op, 0); i++) |
b4378319 NC |
2763 | { |
2764 | rtx vector_element = XVECEXP (op, 0, i); | |
2765 | ||
223a9d64 N |
2766 | if (GET_CODE (vector_element) == CLOBBER) |
2767 | continue; | |
2768 | ||
f2f84cba NS |
2769 | gcc_assert (GET_CODE (vector_element) == SET); |
2770 | gcc_assert (GET_CODE (SET_SRC (vector_element)) == REG); | |
2771 | gcc_assert (register_is_ok_for_epilogue (SET_SRC (vector_element), | |
2772 | SImode)); | |
b4378319 NC |
2773 | |
2774 | if (REGNO (SET_SRC (vector_element)) == 2) | |
2775 | use_callt = 1; | |
2776 | else | |
2777 | mask |= 1 << REGNO (SET_SRC (vector_element)); | |
223a9d64 | 2778 | count++; |
b4378319 NC |
2779 | } |
2780 | ||
223a9d64 N |
2781 | stack_bytes += count * 4; |
2782 | ||
b4378319 | 2783 | if ((! TARGET_DISABLE_CALLT) |
223a9d64 | 2784 | && (use_callt || stack_bytes == 0)) |
b4378319 NC |
2785 | { |
2786 | if (use_callt) | |
2787 | { | |
2788 | sprintf (buff, "callt ctoff(__callt_save_r2_r%d)", (mask & (1 << 31)) ? 31 : 29 ); | |
2789 | return buff; | |
2790 | } | |
2791 | ||
2792 | for (i = 20; i < 32; i++) | |
2793 | if (mask & (1 << i)) | |
2794 | break; | |
2795 | ||
2796 | if (i == 31) | |
2797 | sprintf (buff, "callt ctoff(__callt_save_r31c)"); | |
2798 | else | |
223a9d64 N |
2799 | sprintf (buff, "callt ctoff(__callt_save_r%d_r%s)", |
2800 | i, (mask & (1 << 31)) ? "31c" : "29"); | |
b4378319 NC |
2801 | } |
2802 | else | |
2803 | { | |
2804 | static char regs [100]; /* XXX */ | |
2805 | int done_one; | |
2806 | ||
2807 | ||
2808 | /* Generate the PREPARE instruction. Note we could just issue the | |
2809 | bit mask as a number as the assembler can cope with this, but for | |
2810 | the sake of our readers we turn it into a textual description. */ | |
2811 | regs[0] = 0; | |
2812 | done_one = 0; | |
2813 | ||
2814 | for (i = 20; i < 32; i++) | |
2815 | { | |
2816 | if (mask & (1 << i)) | |
2817 | { | |
2818 | int first; | |
2819 | ||
2820 | if (done_one) | |
2821 | strcat (regs, ", "); | |
2822 | else | |
2823 | done_one = 1; | |
2824 | ||
2825 | first = i; | |
2826 | strcat (regs, reg_names[ first ]); | |
2827 | ||
2828 | for (i++; i < 32; i++) | |
2829 | if ((mask & (1 << i)) == 0) | |
2830 | break; | |
2831 | ||
2832 | if (i > first + 1) | |
2833 | { | |
2834 | strcat (regs, " - "); | |
2835 | strcat (regs, reg_names[ i - 1 ] ); | |
2836 | } | |
2837 | } | |
2838 | } | |
2839 | ||
2840 | sprintf (buff, "prepare {%s}, %d", regs, (- stack_bytes) / 4); | |
2841 | } | |
2842 | ||
2843 | return buff; | |
2844 | } | |
223a9d64 | 2845 | |
a64761a3 DD |
2846 | /* Return an RTX indicating where the return address to the |
2847 | calling function can be found. */ | |
2848 | ||
2849 | rtx | |
59f3507d | 2850 | v850_return_addr (int count) |
a64761a3 DD |
2851 | { |
2852 | if (count != 0) | |
2853 | return const0_rtx; | |
2854 | ||
9e2f7ec7 | 2855 | return get_hard_reg_initial_val (Pmode, LINK_POINTER_REGNUM); |
a64761a3 | 2856 | } |
ae46c4e0 | 2857 | \f |
d6b5193b RS |
2858 | /* Implement TARGET_ASM_INIT_SECTIONS. */ |
2859 | ||
ae46c4e0 | 2860 | static void |
d6b5193b RS |
2861 | v850_asm_init_sections (void) |
2862 | { | |
2863 | rosdata_section | |
2864 | = get_unnamed_section (0, output_section_asm_op, | |
2865 | "\t.section .rosdata,\"a\""); | |
2866 | ||
2867 | rozdata_section | |
2868 | = get_unnamed_section (0, output_section_asm_op, | |
2869 | "\t.section .rozdata,\"a\""); | |
2870 | ||
2871 | tdata_section | |
2872 | = get_unnamed_section (SECTION_WRITE, output_section_asm_op, | |
2873 | "\t.section .tdata,\"aw\""); | |
2874 | ||
2875 | zdata_section | |
2876 | = get_unnamed_section (SECTION_WRITE, output_section_asm_op, | |
2877 | "\t.section .zdata,\"aw\""); | |
2878 | ||
2879 | zbss_section | |
2880 | = get_unnamed_section (SECTION_WRITE | SECTION_BSS, | |
2881 | output_section_asm_op, | |
2882 | "\t.section .zbss,\"aw\""); | |
2883 | } | |
2884 | ||
2885 | static section * | |
59f3507d NN |
2886 | v850_select_section (tree exp, |
2887 | int reloc ATTRIBUTE_UNUSED, | |
2888 | unsigned HOST_WIDE_INT align ATTRIBUTE_UNUSED) | |
ae46c4e0 RH |
2889 | { |
2890 | if (TREE_CODE (exp) == VAR_DECL) | |
2891 | { | |
2892 | int is_const; | |
2893 | if (!TREE_READONLY (exp) | |
2894 | || TREE_SIDE_EFFECTS (exp) | |
2895 | || !DECL_INITIAL (exp) | |
2896 | || (DECL_INITIAL (exp) != error_mark_node | |
2897 | && !TREE_CONSTANT (DECL_INITIAL (exp)))) | |
2898 | is_const = FALSE; | |
2899 | else | |
2900 | is_const = TRUE; | |
2901 | ||
2902 | switch (v850_get_data_area (exp)) | |
2903 | { | |
2904 | case DATA_AREA_ZDA: | |
d6b5193b | 2905 | return is_const ? rozdata_section : zdata_section; |
ae46c4e0 RH |
2906 | |
2907 | case DATA_AREA_TDA: | |
d6b5193b | 2908 | return tdata_section; |
ae46c4e0 RH |
2909 | |
2910 | case DATA_AREA_SDA: | |
d6b5193b | 2911 | return is_const ? rosdata_section : sdata_section; |
ae46c4e0 RH |
2912 | |
2913 | default: | |
d6b5193b | 2914 | return is_const ? readonly_data_section : data_section; |
ae46c4e0 RH |
2915 | } |
2916 | } | |
d6b5193b | 2917 | return readonly_data_section; |
ae46c4e0 | 2918 | } |
fb7bc7fb | 2919 | \f |
122603fa N |
2920 | /* Worker function for TARGET_FUNCTION_VALUE_REGNO_P. */ |
2921 | ||
2922 | static bool | |
2923 | v850_function_value_regno_p (const unsigned int regno) | |
2924 | { | |
2925 | return (regno == 10); | |
2926 | } | |
2927 | ||
fb7bc7fb KH |
2928 | /* Worker function for TARGET_RETURN_IN_MEMORY. */ |
2929 | ||
2930 | static bool | |
586de218 | 2931 | v850_return_in_memory (const_tree type, const_tree fntype ATTRIBUTE_UNUSED) |
fb7bc7fb KH |
2932 | { |
2933 | /* Return values > 8 bytes in length in memory. */ | |
2934 | return int_size_in_bytes (type) > 8 || TYPE_MODE (type) == BLKmode; | |
2935 | } | |
14a878f3 AS |
2936 | |
2937 | /* Worker function for TARGET_FUNCTION_VALUE. */ | |
2938 | ||
122603fa | 2939 | static rtx |
14a878f3 AS |
2940 | v850_function_value (const_tree valtype, |
2941 | const_tree fn_decl_or_type ATTRIBUTE_UNUSED, | |
2942 | bool outgoing ATTRIBUTE_UNUSED) | |
2943 | { | |
2944 | return gen_rtx_REG (TYPE_MODE (valtype), 10); | |
2945 | } | |
2946 | ||
fb7bc7fb KH |
2947 | \f |
2948 | /* Worker function for TARGET_SETUP_INCOMING_VARARGS. */ | |
2949 | ||
2950 | static void | |
d5cc9181 | 2951 | v850_setup_incoming_varargs (cumulative_args_t ca, |
fb7bc7fb KH |
2952 | enum machine_mode mode ATTRIBUTE_UNUSED, |
2953 | tree type ATTRIBUTE_UNUSED, | |
2954 | int *pretend_arg_size ATTRIBUTE_UNUSED, | |
2955 | int second_time ATTRIBUTE_UNUSED) | |
2956 | { | |
d5cc9181 | 2957 | get_cumulative_args (ca)->anonymous_args = (!TARGET_GHS ? 1 : 0); |
fb7bc7fb | 2958 | } |
d6b5193b | 2959 | |
7b5cbb57 AS |
2960 | /* Worker function for TARGET_CAN_ELIMINATE. */ |
2961 | ||
e0c6c273 | 2962 | static bool |
7b5cbb57 AS |
2963 | v850_can_eliminate (const int from ATTRIBUTE_UNUSED, const int to) |
2964 | { | |
2965 | return (to == STACK_POINTER_REGNUM ? ! frame_pointer_needed : true); | |
2966 | } | |
2967 | ||
5efd84c5 NF |
2968 | /* Worker function for TARGET_CONDITIONAL_REGISTER_USAGE. |
2969 | ||
2970 | If TARGET_APP_REGS is not defined then add r2 and r5 to | |
2971 | the pool of fixed registers. See PR 14505. */ | |
2972 | ||
2973 | static void | |
2974 | v850_conditional_register_usage (void) | |
2975 | { | |
2976 | if (TARGET_APP_REGS) | |
2977 | { | |
2978 | fixed_regs[2] = 0; call_used_regs[2] = 0; | |
2979 | fixed_regs[5] = 0; call_used_regs[5] = 1; | |
2980 | } | |
2981 | } | |
e0c6c273 RH |
2982 | \f |
2983 | /* Worker function for TARGET_ASM_TRAMPOLINE_TEMPLATE. */ | |
2984 | ||
2985 | static void | |
2986 | v850_asm_trampoline_template (FILE *f) | |
2987 | { | |
2988 | fprintf (f, "\tjarl .+4,r12\n"); | |
2989 | fprintf (f, "\tld.w 12[r12],r20\n"); | |
2990 | fprintf (f, "\tld.w 16[r12],r12\n"); | |
2991 | fprintf (f, "\tjmp [r12]\n"); | |
2992 | fprintf (f, "\tnop\n"); | |
2993 | fprintf (f, "\t.long 0\n"); | |
2994 | fprintf (f, "\t.long 0\n"); | |
2995 | } | |
2996 | ||
2997 | /* Worker function for TARGET_TRAMPOLINE_INIT. */ | |
2998 | ||
2999 | static void | |
3000 | v850_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value) | |
3001 | { | |
3002 | rtx mem, fnaddr = XEXP (DECL_RTL (fndecl), 0); | |
3003 | ||
3004 | emit_block_move (m_tramp, assemble_trampoline_template (), | |
3005 | GEN_INT (TRAMPOLINE_SIZE), BLOCK_OP_NORMAL); | |
3006 | ||
3007 | mem = adjust_address (m_tramp, SImode, 16); | |
3008 | emit_move_insn (mem, chain_value); | |
3009 | mem = adjust_address (m_tramp, SImode, 20); | |
3010 | emit_move_insn (mem, fnaddr); | |
3011 | } | |
223a9d64 N |
3012 | |
3013 | static int | |
3014 | v850_issue_rate (void) | |
3015 | { | |
3016 | return (TARGET_V850E2_ALL? 2 : 1); | |
3017 | } | |
1a627b35 RS |
3018 | |
3019 | /* Implement TARGET_LEGITIMATE_CONSTANT_P. */ | |
3020 | ||
3021 | static bool | |
3022 | v850_legitimate_constant_p (enum machine_mode mode ATTRIBUTE_UNUSED, rtx x) | |
3023 | { | |
3024 | return (GET_CODE (x) == CONST_DOUBLE | |
3025 | || !(GET_CODE (x) == CONST | |
3026 | && GET_CODE (XEXP (x, 0)) == PLUS | |
3027 | && GET_CODE (XEXP (XEXP (x, 0), 0)) == SYMBOL_REF | |
3028 | && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT | |
3029 | && !CONST_OK_FOR_K (INTVAL (XEXP (XEXP (x, 0), 1))))); | |
3030 | } | |
1dcad079 NC |
3031 | |
3032 | static int | |
0ccef3d2 NC |
3033 | v850_memory_move_cost (enum machine_mode mode, |
3034 | reg_class_t reg_class ATTRIBUTE_UNUSED, | |
3035 | bool in) | |
1dcad079 NC |
3036 | { |
3037 | switch (GET_MODE_SIZE (mode)) | |
3038 | { | |
3039 | case 0: | |
3040 | return in ? 24 : 8; | |
3041 | case 1: | |
3042 | case 2: | |
3043 | case 3: | |
3044 | case 4: | |
3045 | return in ? 6 : 2; | |
3046 | default: | |
3047 | return (GET_MODE_SIZE (mode) / 2) * (in ? 3 : 1); | |
3048 | } | |
3049 | } | |
122603fa N |
3050 | \f |
3051 | /* V850 specific attributes. */ | |
3052 | ||
3053 | static const struct attribute_spec v850_attribute_table[] = | |
3054 | { | |
62d784f7 KT |
3055 | /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler, |
3056 | affects_type_identity } */ | |
3057 | { "interrupt_handler", 0, 0, true, false, false, | |
3058 | v850_handle_interrupt_attribute, false }, | |
3059 | { "interrupt", 0, 0, true, false, false, | |
3060 | v850_handle_interrupt_attribute, false }, | |
3061 | { "sda", 0, 0, true, false, false, | |
3062 | v850_handle_data_area_attribute, false }, | |
3063 | { "tda", 0, 0, true, false, false, | |
3064 | v850_handle_data_area_attribute, false }, | |
3065 | { "zda", 0, 0, true, false, false, | |
3066 | v850_handle_data_area_attribute, false }, | |
3067 | { NULL, 0, 0, false, false, false, NULL, false } | |
122603fa N |
3068 | }; |
3069 | \f | |
b12b5029 NC |
3070 | static enum unwind_info_type |
3071 | v850_debug_unwind_info (void) | |
3072 | { | |
3073 | return UI_NONE; | |
3074 | } | |
3075 | ||
3076 | #undef TARGET_DEBUG_UNWIND_INFO | |
3077 | #define TARGET_DEBUG_UNWIND_INFO v850_debug_unwind_info | |
3078 | \f | |
122603fa | 3079 | /* Initialize the GCC target structure. */ |
1dcad079 NC |
3080 | |
3081 | #undef TARGET_MEMORY_MOVE_COST | |
3082 | #define TARGET_MEMORY_MOVE_COST v850_memory_move_cost | |
3083 | ||
122603fa N |
3084 | #undef TARGET_ASM_ALIGNED_HI_OP |
3085 | #define TARGET_ASM_ALIGNED_HI_OP "\t.hword\t" | |
3086 | ||
3087 | #undef TARGET_PRINT_OPERAND | |
3088 | #define TARGET_PRINT_OPERAND v850_print_operand | |
3089 | #undef TARGET_PRINT_OPERAND_ADDRESS | |
3090 | #define TARGET_PRINT_OPERAND_ADDRESS v850_print_operand_address | |
3091 | #undef TARGET_PRINT_OPERAND_PUNCT_VALID_P | |
3092 | #define TARGET_PRINT_OPERAND_PUNCT_VALID_P v850_print_operand_punct_valid_p | |
3093 | ||
24da2019 AS |
3094 | #undef TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA |
3095 | #define TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA v850_output_addr_const_extra | |
3096 | ||
122603fa N |
3097 | #undef TARGET_ATTRIBUTE_TABLE |
3098 | #define TARGET_ATTRIBUTE_TABLE v850_attribute_table | |
3099 | ||
3100 | #undef TARGET_INSERT_ATTRIBUTES | |
3101 | #define TARGET_INSERT_ATTRIBUTES v850_insert_attributes | |
3102 | ||
3103 | #undef TARGET_ASM_SELECT_SECTION | |
3104 | #define TARGET_ASM_SELECT_SECTION v850_select_section | |
3105 | ||
3106 | /* The assembler supports switchable .bss sections, but | |
3107 | v850_select_section doesn't yet make use of them. */ | |
3108 | #undef TARGET_HAVE_SWITCHABLE_BSS_SECTIONS | |
3109 | #define TARGET_HAVE_SWITCHABLE_BSS_SECTIONS false | |
3110 | ||
3111 | #undef TARGET_ENCODE_SECTION_INFO | |
3112 | #define TARGET_ENCODE_SECTION_INFO v850_encode_section_info | |
3113 | ||
3114 | #undef TARGET_ASM_FILE_START_FILE_DIRECTIVE | |
3115 | #define TARGET_ASM_FILE_START_FILE_DIRECTIVE true | |
3116 | ||
122603fa N |
3117 | #undef TARGET_RTX_COSTS |
3118 | #define TARGET_RTX_COSTS v850_rtx_costs | |
3119 | ||
3120 | #undef TARGET_ADDRESS_COST | |
b413068c | 3121 | #define TARGET_ADDRESS_COST hook_int_rtx_mode_as_bool_0 |
122603fa N |
3122 | |
3123 | #undef TARGET_MACHINE_DEPENDENT_REORG | |
3124 | #define TARGET_MACHINE_DEPENDENT_REORG v850_reorg | |
3125 | ||
3126 | #undef TARGET_SCHED_ISSUE_RATE | |
3127 | #define TARGET_SCHED_ISSUE_RATE v850_issue_rate | |
3128 | ||
3129 | #undef TARGET_FUNCTION_VALUE_REGNO_P | |
3130 | #define TARGET_FUNCTION_VALUE_REGNO_P v850_function_value_regno_p | |
3131 | #undef TARGET_FUNCTION_VALUE | |
3132 | #define TARGET_FUNCTION_VALUE v850_function_value | |
3133 | ||
3134 | #undef TARGET_PROMOTE_PROTOTYPES | |
3135 | #define TARGET_PROMOTE_PROTOTYPES hook_bool_const_tree_true | |
3136 | ||
3137 | #undef TARGET_RETURN_IN_MEMORY | |
3138 | #define TARGET_RETURN_IN_MEMORY v850_return_in_memory | |
3139 | ||
3140 | #undef TARGET_PASS_BY_REFERENCE | |
3141 | #define TARGET_PASS_BY_REFERENCE v850_pass_by_reference | |
3142 | ||
3143 | #undef TARGET_CALLEE_COPIES | |
3144 | #define TARGET_CALLEE_COPIES hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true | |
3145 | ||
3146 | #undef TARGET_SETUP_INCOMING_VARARGS | |
3147 | #define TARGET_SETUP_INCOMING_VARARGS v850_setup_incoming_varargs | |
3148 | ||
3149 | #undef TARGET_ARG_PARTIAL_BYTES | |
3150 | #define TARGET_ARG_PARTIAL_BYTES v850_arg_partial_bytes | |
3151 | ||
3152 | #undef TARGET_FUNCTION_ARG | |
3153 | #define TARGET_FUNCTION_ARG v850_function_arg | |
3154 | ||
3155 | #undef TARGET_FUNCTION_ARG_ADVANCE | |
3156 | #define TARGET_FUNCTION_ARG_ADVANCE v850_function_arg_advance | |
3157 | ||
3158 | #undef TARGET_CAN_ELIMINATE | |
3159 | #define TARGET_CAN_ELIMINATE v850_can_eliminate | |
3160 | ||
5efd84c5 NF |
3161 | #undef TARGET_CONDITIONAL_REGISTER_USAGE |
3162 | #define TARGET_CONDITIONAL_REGISTER_USAGE v850_conditional_register_usage | |
3163 | ||
122603fa N |
3164 | #undef TARGET_ASM_TRAMPOLINE_TEMPLATE |
3165 | #define TARGET_ASM_TRAMPOLINE_TEMPLATE v850_asm_trampoline_template | |
3166 | #undef TARGET_TRAMPOLINE_INIT | |
3167 | #define TARGET_TRAMPOLINE_INIT v850_trampoline_init | |
3168 | ||
3169 | #undef TARGET_STRICT_ARGUMENT_NAMING | |
3170 | #define TARGET_STRICT_ARGUMENT_NAMING v850_strict_argument_naming | |
3171 | ||
1a627b35 RS |
3172 | #undef TARGET_LEGITIMATE_CONSTANT_P |
3173 | #define TARGET_LEGITIMATE_CONSTANT_P v850_legitimate_constant_p | |
3174 | ||
122603fa N |
3175 | struct gcc_target targetm = TARGET_INITIALIZER; |
3176 | ||
d6b5193b | 3177 | #include "gt-v850.h" |