]>
Commit | Line | Data |
---|---|---|
956d6950 | 1 | /* Definitions of target machine for GNU compiler. NEC V850 series |
83310f56 | 2 | Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
16c484c7 | 3 | 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 |
8376061d CM |
9 | it under the terms of the GNU General Public License as published by |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
ae180d84 | 12 | |
301ee2f3 | 13 | GCC is distributed in the hope that it will be useful, |
8376061d CM |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
ae180d84 | 17 | |
8376061d | 18 | You should have received a copy of the GNU General Public License |
301ee2f3 | 19 | along with GCC; see the file COPYING. If not, write to |
39d14dda KC |
20 | the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
ae180d84 | 22 | |
8b97c5f8 ZW |
23 | #ifndef GCC_V850_H |
24 | #define GCC_V850_H | |
25 | ||
5f9b0711 | 26 | /* These are defined in svr4.h but we want to override them. */ |
ae180d84 JL |
27 | #undef LIB_SPEC |
28 | #undef ENDFILE_SPEC | |
29 | #undef LINK_SPEC | |
30 | #undef STARTFILE_SPEC | |
7a846a6c | 31 | #undef ASM_SPEC |
ae180d84 | 32 | |
7a846a6c | 33 | #define TARGET_CPU_generic 1 |
b4378319 | 34 | #define TARGET_CPU_v850e 2 |
232830b7 | 35 | #define TARGET_CPU_v850e1 3 |
74aca74b | 36 | |
7a846a6c NC |
37 | #ifndef TARGET_CPU_DEFAULT |
38 | #define TARGET_CPU_DEFAULT TARGET_CPU_generic | |
74aca74b | 39 | #endif |
ae180d84 | 40 | |
7a846a6c NC |
41 | #define MASK_DEFAULT MASK_V850 |
42 | #define SUBTARGET_ASM_SPEC "%{!mv*:-mv850}" | |
43 | #define SUBTARGET_CPP_SPEC "%{!mv*:-D__v850__}" | |
44 | #define TARGET_VERSION fprintf (stderr, " (NEC V850)"); | |
45 | ||
b4378319 NC |
46 | /* Choose which processor will be the default. |
47 | We must pass a -mv850xx option to the assembler if no explicit -mv* option | |
48 | is given, because the assembler's processor default may not be correct. */ | |
49 | #if TARGET_CPU_DEFAULT == TARGET_CPU_v850e | |
50 | #undef MASK_DEFAULT | |
51 | #define MASK_DEFAULT MASK_V850E | |
52 | #undef SUBTARGET_ASM_SPEC | |
53 | #define SUBTARGET_ASM_SPEC "%{!mv*:-mv850e}" | |
54 | #undef SUBTARGET_CPP_SPEC | |
55 | #define SUBTARGET_CPP_SPEC "%{!mv*:-D__v850e__}" | |
56 | #undef TARGET_VERSION | |
57 | #define TARGET_VERSION fprintf (stderr, " (NEC V850E)"); | |
58 | #endif | |
7a846a6c | 59 | |
232830b7 NC |
60 | #if TARGET_CPU_DEFAULT == TARGET_CPU_v850e1 |
61 | #undef MASK_DEFAULT | |
62 | #define MASK_DEFAULT MASK_V850E /* No practical difference. */ | |
63 | #undef SUBTARGET_ASM_SPEC | |
64 | #define SUBTARGET_ASM_SPEC "%{!mv*:-mv850e1}" | |
65 | #undef SUBTARGET_CPP_SPEC | |
66 | #define SUBTARGET_CPP_SPEC "%{!mv*:-D__v850e1__} %{mv850e1:-D__v850e1__}" | |
67 | #undef TARGET_VERSION | |
68 | #define TARGET_VERSION fprintf (stderr, " (NEC V850E1)"); | |
69 | #endif | |
70 | ||
7a846a6c | 71 | #define ASM_SPEC "%{mv*:-mv%*}" |
b4378319 | 72 | #define CPP_SPEC "%{mv850e:-D__v850e__} %{mv850:-D__v850__} %(subtarget_cpp_spec)" |
7a846a6c NC |
73 | |
74 | #define EXTRA_SPECS \ | |
75 | { "subtarget_asm_spec", SUBTARGET_ASM_SPEC }, \ | |
76 | { "subtarget_cpp_spec", SUBTARGET_CPP_SPEC } | |
77 | ||
78 | /* Names to predefine in the preprocessor for this target machine. */ | |
cc956ba2 NB |
79 | #define TARGET_CPU_CPP_BUILTINS() do { \ |
80 | builtin_define( "__v851__" ); \ | |
81 | builtin_define( "__v850" ); \ | |
82 | builtin_assert( "machine=v850" ); \ | |
83 | builtin_assert( "cpu=v850" ); \ | |
2ec6cd51 NC |
84 | if (TARGET_EP) \ |
85 | builtin_define ("__EP__"); \ | |
cc956ba2 | 86 | } while(0) |
ae180d84 | 87 | |
0a0da1bc | 88 | #define MASK_CPU (MASK_V850 | MASK_V850E) |
ae180d84 JL |
89 | |
90 | /* Information about the various small memory areas. */ | |
91 | struct small_memory_info { | |
8b97c5f8 | 92 | const char *name; |
ae180d84 JL |
93 | long max; |
94 | long physical_max; | |
95 | }; | |
96 | ||
97 | enum small_memory_type { | |
98 | /* tiny data area, using EP as base register */ | |
99 | SMALL_MEMORY_TDA = 0, | |
100 | /* small data area using dp as base register */ | |
101 | SMALL_MEMORY_SDA, | |
102 | /* zero data area using r0 as base register */ | |
103 | SMALL_MEMORY_ZDA, | |
104 | SMALL_MEMORY_max | |
105 | }; | |
106 | ||
107 | extern struct small_memory_info small_memory[(int)SMALL_MEMORY_max]; | |
108 | ||
ae180d84 JL |
109 | /* Show we can debug even without a frame pointer. */ |
110 | #define CAN_DEBUG_WITHOUT_FP | |
111 | ||
112 | /* Some machines may desire to change what optimizations are | |
113 | performed for various optimization levels. This macro, if | |
114 | defined, is executed once just after the optimization level is | |
115 | determined and before the remainder of the command options have | |
116 | been parsed. Values set in this macro are used as the default | |
117 | values for the other command line options. | |
118 | ||
119 | LEVEL is the optimization level specified; 2 if `-O2' is | |
120 | specified, 1 if `-O' is specified, and 0 if neither is specified. | |
121 | ||
5e7a8ee0 | 122 | SIZE is nonzero if `-Os' is specified, 0 otherwise. |
c6aded7c | 123 | |
ae180d84 JL |
124 | You should not use this macro to change options that are not |
125 | machine-specific. These should uniformly selected by the same | |
126 | optimization level on all supported machines. Use this macro to | |
127 | enable machine-specific optimizations. | |
128 | ||
129 | *Do not examine `write_symbols' in this macro!* The debugging | |
d4de0221 | 130 | options are not supposed to alter the generated code. */ |
ae180d84 | 131 | |
c6aded7c | 132 | #define OPTIMIZATION_OPTIONS(LEVEL,SIZE) \ |
ae180d84 | 133 | { \ |
8376061d | 134 | target_flags |= MASK_STRICT_ALIGN; \ |
ae180d84 | 135 | if (LEVEL) \ |
2ec6cd51 NC |
136 | /* Note - we no longer enable MASK_EP when optimizing. This is \ |
137 | because of a hardware bug which stops the SLD and SST instructions\ | |
138 | from correctly detecting some hazards. If the user is sure that \ | |
139 | their hardware is fixed or that their program will not encounter \ | |
140 | the conditions that trigger the bug then they can enable -mep by \ | |
141 | hand. */ \ | |
142 | target_flags |= MASK_PROLOG_FUNCTION; \ | |
ae180d84 JL |
143 | } |
144 | ||
145 | \f | |
146 | /* Target machine storage layout */ | |
147 | ||
148 | /* Define this if most significant bit is lowest numbered | |
149 | in instructions that operate on numbered bit-fields. | |
150 | This is not true on the NEC V850. */ | |
151 | #define BITS_BIG_ENDIAN 0 | |
152 | ||
153 | /* Define this if most significant byte of a word is the lowest numbered. */ | |
154 | /* This is not true on the NEC V850. */ | |
155 | #define BYTES_BIG_ENDIAN 0 | |
156 | ||
157 | /* Define this if most significant word of a multiword number is lowest | |
158 | numbered. | |
159 | This is not true on the NEC V850. */ | |
160 | #define WORDS_BIG_ENDIAN 0 | |
161 | ||
ae180d84 JL |
162 | /* Width of a word, in units (bytes). */ |
163 | #define UNITS_PER_WORD 4 | |
164 | ||
ae180d84 JL |
165 | /* Define this macro if it is advisable to hold scalars in registers |
166 | in a wider mode than that declared by the program. In such cases, | |
167 | the value is constrained to be within the bounds of the declared | |
168 | type, but kept valid in the wider mode. The signedness of the | |
169 | extension may differ from that of the type. | |
170 | ||
171 | Some simple experiments have shown that leaving UNSIGNEDP alone | |
172 | generates the best overall code. */ | |
173 | ||
174 | #define PROMOTE_MODE(MODE,UNSIGNEDP,TYPE) \ | |
175 | if (GET_MODE_CLASS (MODE) == MODE_INT \ | |
176 | && GET_MODE_SIZE (MODE) < 4) \ | |
177 | { (MODE) = SImode; } | |
178 | ||
179 | /* Allocation boundary (in *bits*) for storing arguments in argument list. */ | |
180 | #define PARM_BOUNDARY 32 | |
181 | ||
182 | /* The stack goes in 32 bit lumps. */ | |
183 | #define STACK_BOUNDARY 32 | |
184 | ||
185 | /* Allocation boundary (in *bits*) for the code of a function. | |
186 | 16 is the minimum boundary; 32 would give better performance. */ | |
187 | #define FUNCTION_BOUNDARY 16 | |
188 | ||
189 | /* No data type wants to be aligned rounder than this. */ | |
190 | #define BIGGEST_ALIGNMENT 32 | |
191 | ||
192 | /* Alignment of field after `int : 0' in a structure. */ | |
193 | #define EMPTY_FIELD_BOUNDARY 32 | |
194 | ||
195 | /* No structure field wants to be aligned rounder than this. */ | |
196 | #define BIGGEST_FIELD_ALIGNMENT 32 | |
197 | ||
198 | /* Define this if move instructions will actually fail to work | |
199 | when given unaligned data. */ | |
8376061d | 200 | #define STRICT_ALIGNMENT TARGET_STRICT_ALIGN |
ae180d84 JL |
201 | |
202 | /* Define this as 1 if `char' should by default be signed; else as 0. | |
203 | ||
d4de0221 | 204 | On the NEC V850, loads do sign extension, so make this default. */ |
ae180d84 | 205 | #define DEFAULT_SIGNED_CHAR 1 |
ae180d84 JL |
206 | \f |
207 | /* Standard register usage. */ | |
208 | ||
209 | /* Number of actual hardware registers. | |
210 | The hardware registers are assigned numbers for the compiler | |
211 | from 0 to just below FIRST_PSEUDO_REGISTER. | |
212 | ||
213 | All registers that the compiler knows about must be given numbers, | |
214 | even those that are not normally considered general registers. */ | |
215 | ||
216 | #define FIRST_PSEUDO_REGISTER 34 | |
217 | ||
218 | /* 1 for registers that have pervasive standard uses | |
219 | and are not available for the register allocator. */ | |
220 | ||
221 | #define FIXED_REGISTERS \ | |
222 | { 1, 1, 0, 1, 1, 0, 0, 0, \ | |
223 | 0, 0, 0, 0, 0, 0, 0, 0, \ | |
224 | 0, 0, 0, 0, 0, 0, 0, 0, \ | |
225 | 0, 0, 0, 0, 0, 0, 1, 0, \ | |
226 | 1, 1} | |
227 | ||
228 | /* 1 for registers not available across function calls. | |
229 | These must include the FIXED_REGISTERS and also any | |
230 | registers that can be used without being saved. | |
231 | The latter must include the registers where values are returned | |
232 | and the register where structure-value addresses are passed. | |
233 | Aside from that, you can include as many other registers as you | |
234 | like. */ | |
235 | ||
236 | #define CALL_USED_REGISTERS \ | |
237 | { 1, 1, 0, 1, 1, 1, 1, 1, \ | |
238 | 1, 1, 1, 1, 1, 1, 1, 1, \ | |
239 | 1, 1, 1, 1, 0, 0, 0, 0, \ | |
240 | 0, 0, 0, 0, 0, 0, 1, 1, \ | |
241 | 1, 1} | |
242 | ||
243 | /* List the order in which to allocate registers. Each register must be | |
244 | listed once, even those in FIXED_REGISTERS. | |
245 | ||
246 | On the 850, we make the return registers first, then all of the volatile | |
247 | registers, then the saved registers in reverse order to better save the | |
956d6950 | 248 | registers with an out of line function, and finally the fixed |
ae180d84 JL |
249 | registers. */ |
250 | ||
251 | #define REG_ALLOC_ORDER \ | |
252 | { \ | |
253 | 10, 11, /* return registers */ \ | |
254 | 12, 13, 14, 15, 16, 17, 18, 19, /* scratch registers */ \ | |
255 | 6, 7, 8, 9, 31, /* argument registers */ \ | |
256 | 29, 28, 27, 26, 25, 24, 23, 22, /* saved registers */ \ | |
257 | 21, 20, 2, \ | |
258 | 0, 1, 3, 4, 5, 30, 32, 33 /* fixed registers */ \ | |
259 | } | |
260 | ||
0a0da1bc | 261 | /* If TARGET_APP_REGS is not defined then add r2 and r5 to |
d4de0221 | 262 | the pool of fixed registers. See PR 14505. */ |
b4378319 NC |
263 | #define CONDITIONAL_REGISTER_USAGE \ |
264 | { \ | |
0a0da1bc | 265 | if (!TARGET_APP_REGS) \ |
b4378319 | 266 | { \ |
0a0da1bc RS |
267 | fixed_regs[2] = 1; call_used_regs[2] = 1; \ |
268 | fixed_regs[5] = 1; call_used_regs[5] = 1; \ | |
b4378319 NC |
269 | } \ |
270 | } | |
271 | ||
ae180d84 JL |
272 | /* Return number of consecutive hard regs needed starting at reg REGNO |
273 | to hold something of mode MODE. | |
274 | ||
275 | This is ordinarily the length in words of a value of mode MODE | |
276 | but can be less for certain modes in special long registers. */ | |
277 | ||
278 | #define HARD_REGNO_NREGS(REGNO, MODE) \ | |
279 | ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) | |
280 | ||
281 | /* Value is 1 if hard register REGNO can hold a value of machine-mode | |
282 | MODE. */ | |
283 | ||
284 | #define HARD_REGNO_MODE_OK(REGNO, MODE) \ | |
285 | ((((REGNO) & 1) == 0) || (GET_MODE_SIZE (MODE) <= 4)) | |
286 | ||
287 | /* Value is 1 if it is a good idea to tie two pseudo registers | |
288 | when one has mode MODE1 and one has mode MODE2. | |
289 | If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2, | |
290 | for any hard reg, then this must be 0 for correct output. */ | |
291 | #define MODES_TIEABLE_P(MODE1, MODE2) \ | |
674fdc14 | 292 | (MODE1 == MODE2 || (GET_MODE_SIZE (MODE1) <= 4 && GET_MODE_SIZE (MODE2) <= 4)) |
ae180d84 JL |
293 | |
294 | \f | |
295 | /* Define the classes of registers for register constraints in the | |
296 | machine description. Also define ranges of constants. | |
297 | ||
298 | One of the classes must always be named ALL_REGS and include all hard regs. | |
299 | If there is more than one class, another class must be named NO_REGS | |
300 | and contain no registers. | |
301 | ||
302 | The name GENERAL_REGS must be the name of a class (or an alias for | |
303 | another name such as ALL_REGS). This is the class of registers | |
304 | that is allowed by "g" or "r" in a register constraint. | |
305 | Also, registers outside this class are allocated only when | |
306 | instructions express preferences for them. | |
307 | ||
308 | The classes must be numbered in nondecreasing order; that is, | |
309 | a larger-numbered class must never be contained completely | |
310 | in a smaller-numbered class. | |
311 | ||
312 | For any two classes, it is very desirable that there be another | |
313 | class that represents their union. */ | |
314 | ||
3ce15347 NC |
315 | enum reg_class |
316 | { | |
ae180d84 JL |
317 | NO_REGS, GENERAL_REGS, ALL_REGS, LIM_REG_CLASSES |
318 | }; | |
319 | ||
320 | #define N_REG_CLASSES (int) LIM_REG_CLASSES | |
321 | ||
d4de0221 | 322 | /* Give names of register classes as strings for dump file. */ |
ae180d84 JL |
323 | |
324 | #define REG_CLASS_NAMES \ | |
325 | { "NO_REGS", "GENERAL_REGS", "ALL_REGS", "LIM_REGS" } | |
326 | ||
327 | /* Define which registers fit in which classes. | |
328 | This is an initializer for a vector of HARD_REG_SET | |
329 | of length N_REG_CLASSES. */ | |
330 | ||
674fdc14 NC |
331 | #define REG_CLASS_CONTENTS \ |
332 | { \ | |
333 | { 0x00000000 }, /* NO_REGS */ \ | |
334 | { 0xffffffff }, /* GENERAL_REGS */ \ | |
335 | { 0xffffffff }, /* ALL_REGS */ \ | |
ae180d84 JL |
336 | } |
337 | ||
338 | /* The same information, inverted: | |
339 | Return the class number of the smallest class containing | |
340 | reg number REGNO. This could be a conditional expression | |
341 | or could index an array. */ | |
342 | ||
343 | #define REGNO_REG_CLASS(REGNO) GENERAL_REGS | |
344 | ||
345 | /* The class value for index registers, and the one for base regs. */ | |
346 | ||
347 | #define INDEX_REG_CLASS NO_REGS | |
348 | #define BASE_REG_CLASS GENERAL_REGS | |
349 | ||
350 | /* Get reg_class from a letter such as appears in the machine description. */ | |
351 | ||
352 | #define REG_CLASS_FROM_LETTER(C) (NO_REGS) | |
353 | ||
354 | /* Macros to check register numbers against specific register classes. */ | |
355 | ||
356 | /* These assume that REGNO is a hard or pseudo reg number. | |
357 | They give nonzero only if REGNO is a hard reg of the suitable class | |
358 | or a pseudo reg currently allocated to a suitable hard reg. | |
359 | Since they use reg_renumber, they are safe only once reg_renumber | |
360 | has been allocated, which happens in local-alloc.c. */ | |
361 | ||
362 | #define REGNO_OK_FOR_BASE_P(regno) \ | |
363 | ((regno) < FIRST_PSEUDO_REGISTER || reg_renumber[regno] >= 0) | |
364 | ||
365 | #define REGNO_OK_FOR_INDEX_P(regno) 0 | |
366 | ||
367 | /* Given an rtx X being reloaded into a reg required to be | |
368 | in class CLASS, return the class of reg to actually use. | |
369 | In general this is just CLASS; but on some machines | |
370 | in some cases it is preferable to use a more restrictive class. */ | |
371 | ||
372 | #define PREFERRED_RELOAD_CLASS(X,CLASS) (CLASS) | |
373 | ||
374 | /* Return the maximum number of consecutive registers | |
375 | needed to represent mode MODE in a register of class CLASS. */ | |
376 | ||
377 | #define CLASS_MAX_NREGS(CLASS, MODE) \ | |
378 | ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) | |
379 | ||
380 | /* The letters I, J, K, L, M, N, O, P in a register constraint string | |
381 | can be used to stand for particular ranges of immediate operands. | |
382 | This macro defines what the ranges are. | |
383 | C is the letter, and VALUE is a constant value. | |
384 | Return 1 if VALUE is in the range specified by C. */ | |
385 | ||
386 | #define INT_7_BITS(VALUE) ((unsigned) (VALUE) + 0x40 < 0x80) | |
387 | #define INT_8_BITS(VALUE) ((unsigned) (VALUE) + 0x80 < 0x100) | |
1933ec7e | 388 | /* zero */ |
ae180d84 | 389 | #define CONST_OK_FOR_I(VALUE) ((VALUE) == 0) |
1933ec7e | 390 | /* 5 bit signed immediate */ |
ae180d84 | 391 | #define CONST_OK_FOR_J(VALUE) ((unsigned) (VALUE) + 0x10 < 0x20) |
1933ec7e | 392 | /* 16 bit signed immediate */ |
ae180d84 | 393 | #define CONST_OK_FOR_K(VALUE) ((unsigned) (VALUE) + 0x8000 < 0x10000) |
1933ec7e | 394 | /* valid constant for movhi instruction. */ |
ae180d84 JL |
395 | #define CONST_OK_FOR_L(VALUE) \ |
396 | (((unsigned) ((int) (VALUE) >> 16) + 0x8000 < 0x10000) \ | |
397 | && CONST_OK_FOR_I ((VALUE & 0xffff))) | |
1933ec7e JW |
398 | /* 16 bit unsigned immediate */ |
399 | #define CONST_OK_FOR_M(VALUE) ((unsigned)(VALUE) < 0x10000) | |
400 | /* 5 bit unsigned immediate in shift instructions */ | |
401 | #define CONST_OK_FOR_N(VALUE) ((unsigned) (VALUE) <= 31) | |
b4378319 NC |
402 | /* 9 bit signed immediate for word multiply instruction. */ |
403 | #define CONST_OK_FOR_O(VALUE) ((unsigned) (VALUE) + 0x100 < 0x200) | |
ae180d84 | 404 | |
ae180d84 JL |
405 | #define CONST_OK_FOR_P(VALUE) 0 |
406 | ||
407 | #define CONST_OK_FOR_LETTER_P(VALUE, C) \ | |
408 | ((C) == 'I' ? CONST_OK_FOR_I (VALUE) : \ | |
409 | (C) == 'J' ? CONST_OK_FOR_J (VALUE) : \ | |
410 | (C) == 'K' ? CONST_OK_FOR_K (VALUE) : \ | |
411 | (C) == 'L' ? CONST_OK_FOR_L (VALUE) : \ | |
412 | (C) == 'M' ? CONST_OK_FOR_M (VALUE) : \ | |
413 | (C) == 'N' ? CONST_OK_FOR_N (VALUE) : \ | |
414 | (C) == 'O' ? CONST_OK_FOR_O (VALUE) : \ | |
415 | (C) == 'P' ? CONST_OK_FOR_P (VALUE) : \ | |
416 | 0) | |
417 | ||
418 | /* Similar, but for floating constants, and defining letters G and H. | |
419 | Here VALUE is the CONST_DOUBLE rtx itself. | |
420 | ||
421 | `G' is a zero of some form. */ | |
422 | ||
423 | #define CONST_DOUBLE_OK_FOR_G(VALUE) \ | |
424 | ((GET_MODE_CLASS (GET_MODE (VALUE)) == MODE_FLOAT \ | |
425 | && (VALUE) == CONST0_RTX (GET_MODE (VALUE))) \ | |
426 | || (GET_MODE_CLASS (GET_MODE (VALUE)) == MODE_INT \ | |
427 | && CONST_DOUBLE_LOW (VALUE) == 0 \ | |
428 | && CONST_DOUBLE_HIGH (VALUE) == 0)) | |
429 | ||
430 | #define CONST_DOUBLE_OK_FOR_H(VALUE) 0 | |
431 | ||
432 | #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \ | |
433 | ((C) == 'G' ? CONST_DOUBLE_OK_FOR_G (VALUE) \ | |
434 | : (C) == 'H' ? CONST_DOUBLE_OK_FOR_H (VALUE) \ | |
435 | : 0) | |
436 | ||
437 | \f | |
438 | /* Stack layout; function entry, exit and calling. */ | |
439 | ||
440 | /* Define this if pushing a word on the stack | |
441 | makes the stack pointer a smaller address. */ | |
442 | ||
443 | #define STACK_GROWS_DOWNWARD | |
444 | ||
a4d05547 | 445 | /* Define this to nonzero if the nominal address of the stack frame |
ae180d84 JL |
446 | is at the high-address end of the local variables; |
447 | that is, each additional local variable allocated | |
448 | goes at a more negative offset in the frame. */ | |
449 | ||
f62c8a5c | 450 | #define FRAME_GROWS_DOWNWARD 1 |
ae180d84 JL |
451 | |
452 | /* Offset within stack frame to start allocating local variables at. | |
453 | If FRAME_GROWS_DOWNWARD, this is the offset to the END of the | |
454 | first local allocated. Otherwise, it is the offset to the BEGINNING | |
455 | of the first local allocated. */ | |
456 | ||
457 | #define STARTING_FRAME_OFFSET 0 | |
458 | ||
459 | /* Offset of first parameter from the argument pointer register value. */ | |
460 | /* Is equal to the size of the saved fp + pc, even if an fp isn't | |
461 | saved since the value is used before we know. */ | |
462 | ||
463 | #define FIRST_PARM_OFFSET(FNDECL) 0 | |
464 | ||
465 | /* Specify the registers used for certain standard purposes. | |
466 | The values of these macros are register numbers. */ | |
467 | ||
468 | /* Register to use for pushing function arguments. */ | |
469 | #define STACK_POINTER_REGNUM 3 | |
470 | ||
471 | /* Base register for access to local variables of the function. */ | |
472 | #define FRAME_POINTER_REGNUM 32 | |
473 | ||
29a65e3d NC |
474 | /* Register containing return address from latest function call. */ |
475 | #define LINK_POINTER_REGNUM 31 | |
476 | ||
ae180d84 JL |
477 | /* On some machines the offset between the frame pointer and starting |
478 | offset of the automatic variables is not known until after register | |
479 | allocation has been done (for example, because the saved registers | |
480 | are between these two locations). On those machines, define | |
481 | `FRAME_POINTER_REGNUM' the number of a special, fixed register to | |
482 | be used internally until the offset is known, and define | |
483 | `HARD_FRAME_POINTER_REGNUM' to be actual the hard register number | |
484 | used for the frame pointer. | |
485 | ||
486 | You should define this macro only in the very rare circumstances | |
487 | when it is not possible to calculate the offset between the frame | |
488 | pointer and the automatic variables until after register | |
489 | allocation has been completed. When this macro is defined, you | |
490 | must also indicate in your definition of `ELIMINABLE_REGS' how to | |
491 | eliminate `FRAME_POINTER_REGNUM' into either | |
492 | `HARD_FRAME_POINTER_REGNUM' or `STACK_POINTER_REGNUM'. | |
493 | ||
494 | Do not define this macro if it would be the same as | |
d4de0221 | 495 | `FRAME_POINTER_REGNUM'. */ |
3ce15347 | 496 | #undef HARD_FRAME_POINTER_REGNUM |
ae180d84 JL |
497 | #define HARD_FRAME_POINTER_REGNUM 29 |
498 | ||
499 | /* Base register for access to arguments of the function. */ | |
500 | #define ARG_POINTER_REGNUM 33 | |
501 | ||
502 | /* Register in which static-chain is passed to a function. */ | |
3ce15347 | 503 | #define STATIC_CHAIN_REGNUM 20 |
ae180d84 JL |
504 | |
505 | /* Value should be nonzero if functions must have frame pointers. | |
506 | Zero means the frame pointer need not be set up (and parms | |
507 | may be accessed via the stack pointer) in functions that seem suitable. | |
508 | This is computed in `reload', in reload1.c. */ | |
509 | #define FRAME_POINTER_REQUIRED 0 | |
510 | ||
511 | /* If defined, this macro specifies a table of register pairs used to | |
512 | eliminate unneeded registers that point into the stack frame. If | |
513 | it is not defined, the only elimination attempted by the compiler | |
514 | is to replace references to the frame pointer with references to | |
515 | the stack pointer. | |
516 | ||
517 | The definition of this macro is a list of structure | |
518 | initializations, each of which specifies an original and | |
519 | replacement register. | |
520 | ||
521 | On some machines, the position of the argument pointer is not | |
522 | known until the compilation is completed. In such a case, a | |
523 | separate hard register must be used for the argument pointer. | |
524 | This register can be eliminated by replacing it with either the | |
525 | frame pointer or the argument pointer, depending on whether or not | |
526 | the frame pointer has been eliminated. | |
527 | ||
528 | In this case, you might specify: | |
529 | #define ELIMINABLE_REGS \ | |
530 | {{ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ | |
531 | {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \ | |
532 | {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}} | |
533 | ||
534 | Note that the elimination of the argument pointer with the stack | |
d4de0221 | 535 | pointer is specified first since that is the preferred elimination. */ |
ae180d84 JL |
536 | |
537 | #define ELIMINABLE_REGS \ | |
538 | {{ FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM }, \ | |
539 | { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }, \ | |
540 | { ARG_POINTER_REGNUM, STACK_POINTER_REGNUM }, \ | |
541 | { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }} \ | |
542 | ||
5e7a8ee0 | 543 | /* A C expression that returns nonzero if the compiler is allowed to |
ae180d84 JL |
544 | try to replace register number FROM-REG with register number |
545 | TO-REG. This macro need only be defined if `ELIMINABLE_REGS' is | |
546 | defined, and will usually be the constant 1, since most of the | |
547 | cases preventing register elimination are things that the compiler | |
d4de0221 | 548 | already knows about. */ |
ae180d84 JL |
549 | |
550 | #define CAN_ELIMINATE(FROM, TO) \ | |
551 | ((TO) == STACK_POINTER_REGNUM ? ! frame_pointer_needed : 1) | |
552 | ||
553 | /* This macro is similar to `INITIAL_FRAME_POINTER_OFFSET'. It | |
554 | specifies the initial difference between the specified pair of | |
555 | registers. This macro must be defined if `ELIMINABLE_REGS' is | |
d4de0221 | 556 | defined. */ |
ae180d84 JL |
557 | |
558 | #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ | |
559 | { \ | |
560 | if ((FROM) == FRAME_POINTER_REGNUM) \ | |
561 | (OFFSET) = get_frame_size () + current_function_outgoing_args_size; \ | |
562 | else if ((FROM) == ARG_POINTER_REGNUM) \ | |
563 | (OFFSET) = compute_frame_size (get_frame_size (), (long *)0); \ | |
564 | else \ | |
f2f84cba | 565 | gcc_unreachable (); \ |
ae180d84 JL |
566 | } |
567 | ||
ae180d84 | 568 | /* Keep the stack pointer constant throughout the function. */ |
f73ad30e | 569 | #define ACCUMULATE_OUTGOING_ARGS 1 |
ae180d84 JL |
570 | |
571 | /* Value is the number of bytes of arguments automatically | |
572 | popped when returning from a subroutine call. | |
573 | FUNDECL is the declaration node of the function (as a tree), | |
574 | FUNTYPE is the data type of the function (as a tree), | |
575 | or for a library call it is an identifier node for the subroutine name. | |
576 | SIZE is the number of bytes of arguments passed on the stack. */ | |
577 | ||
578 | #define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) 0 | |
579 | ||
a64761a3 | 580 | #define RETURN_ADDR_RTX(COUNT, FP) v850_return_addr (COUNT) |
ae180d84 JL |
581 | \f |
582 | /* Define a data type for recording info about an argument list | |
583 | during the scan of that argument list. This data type should | |
584 | hold all necessary information about the function itself | |
585 | and about the args processed so far, enough to enable macros | |
586 | such as FUNCTION_ARG to determine where the next arg should go. */ | |
587 | ||
588 | #define CUMULATIVE_ARGS struct cum_arg | |
66a0dfeb | 589 | struct cum_arg { int nbytes; int anonymous_args; }; |
ae180d84 JL |
590 | |
591 | /* Define where to put the arguments to a function. | |
592 | Value is zero to push the argument on the stack, | |
593 | or a hard register in which to store the argument. | |
594 | ||
595 | MODE is the argument's machine mode. | |
596 | TYPE is the data type of the argument (as a tree). | |
597 | This is null for libcalls where that information may | |
598 | not be available. | |
599 | CUM is a variable of type CUMULATIVE_ARGS which gives info about | |
600 | the preceding args and about the function being called. | |
601 | NAMED is nonzero if this argument is a named parameter | |
602 | (otherwise it is an extra parameter matching an ellipsis). */ | |
603 | ||
ae180d84 JL |
604 | #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \ |
605 | function_arg (&CUM, MODE, TYPE, NAMED) | |
606 | ||
ae180d84 JL |
607 | /* Initialize a variable CUM of type CUMULATIVE_ARGS |
608 | for a call to a function whose data type is FNTYPE. | |
609 | For a library call, FNTYPE is 0. */ | |
610 | ||
0f6937fe | 611 | #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \ |
66a0dfeb | 612 | ((CUM).nbytes = 0, (CUM).anonymous_args = 0) |
ae180d84 JL |
613 | |
614 | /* Update the data in CUM to advance over an argument | |
615 | of mode MODE and data type TYPE. | |
616 | (TYPE is null for libcalls where that information may not be available.) */ | |
617 | ||
618 | #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \ | |
619 | ((CUM).nbytes += ((MODE) != BLKmode \ | |
620 | ? (GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) & -UNITS_PER_WORD \ | |
621 | : (int_size_in_bytes (TYPE) + UNITS_PER_WORD - 1) & -UNITS_PER_WORD)) | |
622 | ||
623 | /* When a parameter is passed in a register, stack space is still | |
624 | allocated for it. */ | |
625 | #define REG_PARM_STACK_SPACE(DECL) (!TARGET_GHS ? 16 : 0) | |
626 | ||
627 | /* Define this if the above stack space is to be considered part of the | |
628 | space allocated by the caller. */ | |
629 | #define OUTGOING_REG_PARM_STACK_SPACE | |
630 | ||
ae180d84 JL |
631 | /* 1 if N is a possible register number for function argument passing. */ |
632 | ||
633 | #define FUNCTION_ARG_REGNO_P(N) (N >= 6 && N <= 9) | |
634 | ||
635 | /* Define how to find the value returned by a function. | |
636 | VALTYPE is the data type of the value (as a tree). | |
637 | If the precise function being called is known, FUNC is its FUNCTION_DECL; | |
d4de0221 | 638 | otherwise, FUNC is 0. */ |
ae180d84 JL |
639 | |
640 | #define FUNCTION_VALUE(VALTYPE, FUNC) \ | |
c5c76735 | 641 | gen_rtx_REG (TYPE_MODE (VALTYPE), 10) |
ae180d84 JL |
642 | |
643 | /* Define how to find the value returned by a library function | |
644 | assuming the value has mode MODE. */ | |
645 | ||
646 | #define LIBCALL_VALUE(MODE) \ | |
c5c76735 | 647 | gen_rtx_REG (MODE, 10) |
ae180d84 JL |
648 | |
649 | /* 1 if N is a possible register number for a function value. */ | |
650 | ||
651 | #define FUNCTION_VALUE_REGNO_P(N) ((N) == 10) | |
652 | ||
ae180d84 | 653 | #define DEFAULT_PCC_STRUCT_RETURN 0 |
ae180d84 JL |
654 | |
655 | /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, | |
656 | the stack pointer does not matter. The value is tested only in | |
657 | functions that have frame pointers. | |
658 | No definition is equivalent to always zero. */ | |
659 | ||
660 | #define EXIT_IGNORE_STACK 1 | |
661 | ||
bc9ec51b JW |
662 | /* Define this macro as a C expression that is nonzero for registers |
663 | used by the epilogue or the `return' pattern. */ | |
664 | ||
665 | #define EPILOGUE_USES(REGNO) \ | |
666 | (reload_completed && (REGNO) == LINK_POINTER_REGNUM) | |
667 | ||
ae180d84 JL |
668 | /* Output assembler code to FILE to increment profiler label # LABELNO |
669 | for profiling a function entry. */ | |
670 | ||
671 | #define FUNCTION_PROFILER(FILE, LABELNO) ; | |
672 | ||
673 | #define TRAMPOLINE_TEMPLATE(FILE) \ | |
674 | do { \ | |
675 | fprintf (FILE, "\tjarl .+4,r12\n"); \ | |
6ed7412a | 676 | fprintf (FILE, "\tld.w 12[r12],r20\n"); \ |
ae180d84 JL |
677 | fprintf (FILE, "\tld.w 16[r12],r12\n"); \ |
678 | fprintf (FILE, "\tjmp [r12]\n"); \ | |
679 | fprintf (FILE, "\tnop\n"); \ | |
680 | fprintf (FILE, "\t.long 0\n"); \ | |
681 | fprintf (FILE, "\t.long 0\n"); \ | |
682 | } while (0) | |
683 | ||
684 | /* Length in units of the trampoline for entering a nested function. */ | |
685 | ||
686 | #define TRAMPOLINE_SIZE 24 | |
687 | ||
688 | /* Emit RTL insns to initialize the variable parts of a trampoline. | |
689 | FNADDR is an RTX for the address of the function's pure code. | |
690 | CXT is an RTX for the static chain value for the function. */ | |
691 | ||
692 | #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \ | |
693 | { \ | |
c5c76735 | 694 | emit_move_insn (gen_rtx_MEM (SImode, plus_constant ((TRAMP), 16)), \ |
ae180d84 | 695 | (CXT)); \ |
c5c76735 | 696 | emit_move_insn (gen_rtx_MEM (SImode, plus_constant ((TRAMP), 20)), \ |
ae180d84 JL |
697 | (FNADDR)); \ |
698 | } | |
699 | ||
700 | /* Addressing modes, and classification of registers for them. */ | |
701 | ||
702 | \f | |
703 | /* 1 if X is an rtx for a constant that is a valid address. */ | |
704 | ||
1933ec7e JW |
705 | /* ??? This seems too exclusive. May get better code by accepting more |
706 | possibilities here, in particular, should accept ZDA_NAME SYMBOL_REFs. */ | |
707 | ||
ae180d84 JL |
708 | #define CONSTANT_ADDRESS_P(X) \ |
709 | (GET_CODE (X) == CONST_INT \ | |
710 | && CONST_OK_FOR_K (INTVAL (X))) | |
711 | ||
712 | /* Maximum number of registers that can appear in a valid memory address. */ | |
713 | ||
714 | #define MAX_REGS_PER_ADDRESS 1 | |
715 | ||
716 | /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx | |
717 | and check its validity for a certain class. | |
718 | We have two alternate definitions for each of them. | |
719 | The usual definition accepts all pseudo regs; the other rejects | |
720 | them unless they have been allocated suitable hard regs. | |
721 | The symbol REG_OK_STRICT causes the latter definition to be used. | |
722 | ||
723 | Most source files want to accept pseudo regs in the hope that | |
724 | they will get allocated to the class that the insn wants them to be in. | |
725 | Source files for reload pass need to be strict. | |
726 | After reload, it makes no difference, since pseudo regs have | |
727 | been eliminated by then. */ | |
728 | ||
729 | #ifndef REG_OK_STRICT | |
730 | ||
731 | /* Nonzero if X is a hard reg that can be used as an index | |
732 | or if it is a pseudo reg. */ | |
733 | #define REG_OK_FOR_INDEX_P(X) 0 | |
734 | /* Nonzero if X is a hard reg that can be used as a base reg | |
735 | or if it is a pseudo reg. */ | |
736 | #define REG_OK_FOR_BASE_P(X) 1 | |
737 | #define REG_OK_FOR_INDEX_P_STRICT(X) 0 | |
738 | #define REG_OK_FOR_BASE_P_STRICT(X) REGNO_OK_FOR_BASE_P (REGNO (X)) | |
739 | #define STRICT 0 | |
740 | ||
741 | #else | |
742 | ||
743 | /* Nonzero if X is a hard reg that can be used as an index. */ | |
744 | #define REG_OK_FOR_INDEX_P(X) 0 | |
745 | /* Nonzero if X is a hard reg that can be used as a base reg. */ | |
746 | #define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X)) | |
747 | #define STRICT 1 | |
748 | ||
749 | #endif | |
750 | ||
751 | /* A C expression that defines the optional machine-dependent | |
752 | constraint letters that can be used to segregate specific types of | |
753 | operands, usually memory references, for the target machine. | |
754 | Normally this macro will not be defined. If it is required for a | |
755 | particular target machine, it should return 1 if VALUE corresponds | |
756 | to the operand type represented by the constraint letter C. If C | |
757 | is not defined as an extra constraint, the value returned should | |
758 | be 0 regardless of VALUE. | |
759 | ||
760 | For example, on the ROMP, load instructions cannot have their | |
761 | output in r0 if the memory reference contains a symbolic address. | |
762 | Constraint letter `Q' is defined as representing a memory address | |
763 | that does *not* contain a symbolic address. An alternative is | |
764 | specified with a `Q' constraint on the input and `r' on the | |
765 | output. The next alternative specifies `m' on the input and a | |
766 | register class that does not include r0 on the output. */ | |
767 | ||
768 | #define EXTRA_CONSTRAINT(OP, C) \ | |
2ec6cd51 | 769 | ((C) == 'Q' ? ep_memory_operand (OP, GET_MODE (OP), FALSE) \ |
ae180d84 | 770 | : (C) == 'R' ? special_symbolref_operand (OP, VOIDmode) \ |
50d1ff6a RH |
771 | : (C) == 'S' ? (GET_CODE (OP) == SYMBOL_REF \ |
772 | && !SYMBOL_REF_ZDA_P (OP)) \ | |
2ec6cd51 | 773 | : (C) == 'T' ? ep_memory_operand (OP, GET_MODE (OP), TRUE) \ |
50d1ff6a RH |
774 | : (C) == 'U' ? ((GET_CODE (OP) == SYMBOL_REF \ |
775 | && SYMBOL_REF_ZDA_P (OP)) \ | |
1933ec7e JW |
776 | || (GET_CODE (OP) == CONST \ |
777 | && GET_CODE (XEXP (OP, 0)) == PLUS \ | |
778 | && GET_CODE (XEXP (XEXP (OP, 0), 0)) == SYMBOL_REF \ | |
50d1ff6a | 779 | && SYMBOL_REF_ZDA_P (XEXP (XEXP (OP, 0), 0)))) \ |
ae180d84 JL |
780 | : 0) |
781 | \f | |
782 | /* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression | |
783 | that is a valid memory address for an instruction. | |
784 | The MODE argument is the machine mode for the MEM expression | |
785 | that wants to use this address. | |
786 | ||
787 | The other macros defined here are used only in GO_IF_LEGITIMATE_ADDRESS, | |
788 | except for CONSTANT_ADDRESS_P which is actually | |
789 | machine-independent. */ | |
790 | ||
791 | /* Accept either REG or SUBREG where a register is valid. */ | |
792 | ||
793 | #define RTX_OK_FOR_BASE_P(X) \ | |
794 | ((REG_P (X) && REG_OK_FOR_BASE_P (X)) \ | |
795 | || (GET_CODE (X) == SUBREG && REG_P (SUBREG_REG (X)) \ | |
796 | && REG_OK_FOR_BASE_P (SUBREG_REG (X)))) | |
797 | ||
798 | #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \ | |
799 | do { \ | |
7d866c52 NC |
800 | if (RTX_OK_FOR_BASE_P (X)) \ |
801 | goto ADDR; \ | |
ae180d84 | 802 | if (CONSTANT_ADDRESS_P (X) \ |
7a846a6c NC |
803 | && (MODE == QImode || INTVAL (X) % 2 == 0) \ |
804 | && (GET_MODE_SIZE (MODE) <= 4 || INTVAL (X) % 4 == 0)) \ | |
ae180d84 JL |
805 | goto ADDR; \ |
806 | if (GET_CODE (X) == LO_SUM \ | |
7d866c52 | 807 | && REG_P (XEXP (X, 0)) \ |
ae180d84 JL |
808 | && REG_OK_FOR_BASE_P (XEXP (X, 0)) \ |
809 | && CONSTANT_P (XEXP (X, 1)) \ | |
810 | && (GET_CODE (XEXP (X, 1)) != CONST_INT \ | |
811 | || ((MODE == QImode || INTVAL (XEXP (X, 1)) % 2 == 0) \ | |
812 | && CONST_OK_FOR_K (INTVAL (XEXP (X, 1))))) \ | |
813 | && GET_MODE_SIZE (MODE) <= GET_MODE_SIZE (word_mode)) \ | |
814 | goto ADDR; \ | |
815 | if (special_symbolref_operand (X, MODE) \ | |
816 | && (GET_MODE_SIZE (MODE) <= GET_MODE_SIZE (word_mode))) \ | |
817 | goto ADDR; \ | |
818 | if (GET_CODE (X) == PLUS \ | |
7d866c52 | 819 | && RTX_OK_FOR_BASE_P (XEXP (X, 0)) \ |
ae180d84 | 820 | && CONSTANT_ADDRESS_P (XEXP (X, 1)) \ |
7d866c52 NC |
821 | && ((MODE == QImode || INTVAL (XEXP (X, 1)) % 2 == 0) \ |
822 | && CONST_OK_FOR_K (INTVAL (XEXP (X, 1)) \ | |
823 | + (GET_MODE_NUNITS (MODE) * UNITS_PER_WORD)))) \ | |
824 | goto ADDR; \ | |
ae180d84 JL |
825 | } while (0) |
826 | ||
827 | \f | |
ae180d84 JL |
828 | /* Go to LABEL if ADDR (a legitimate address expression) |
829 | has an effect that depends on the machine mode it is used for. */ | |
830 | ||
831 | #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL) {} | |
832 | ||
833 | /* Nonzero if the constant value X is a legitimate general operand. | |
834 | It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE. */ | |
835 | ||
836 | #define LEGITIMATE_CONSTANT_P(X) \ | |
837 | (GET_CODE (X) == CONST_DOUBLE \ | |
838 | || !(GET_CODE (X) == CONST \ | |
839 | && GET_CODE (XEXP (X, 0)) == PLUS \ | |
840 | && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF \ | |
841 | && GET_CODE (XEXP (XEXP (X, 0), 1)) == CONST_INT \ | |
842 | && ! CONST_OK_FOR_K (INTVAL (XEXP (XEXP (X, 0), 1))))) | |
ae180d84 JL |
843 | \f |
844 | /* Tell final.c how to eliminate redundant test instructions. */ | |
845 | ||
846 | /* Here we define machine-dependent flags and fields in cc_status | |
8aeea6e6 | 847 | (see `conditions.h'). No extra ones are needed for the VAX. */ |
ae180d84 JL |
848 | |
849 | /* Store in cc_status the expressions | |
850 | that the condition codes will describe | |
851 | after execution of an instruction whose pattern is EXP. | |
852 | Do not alter them if the instruction would not alter the cc's. */ | |
853 | ||
854 | #define CC_OVERFLOW_UNUSABLE 0x200 | |
855 | #define CC_NO_CARRY CC_NO_OVERFLOW | |
856 | #define NOTICE_UPDATE_CC(EXP, INSN) notice_update_cc(EXP, INSN) | |
857 | ||
ae180d84 JL |
858 | /* Nonzero if access to memory by bytes or half words is no faster |
859 | than accessing full words. */ | |
860 | #define SLOW_BYTE_ACCESS 1 | |
861 | ||
ae180d84 JL |
862 | /* According expr.c, a value of around 6 should minimize code size, and |
863 | for the V850 series, that's our primary concern. */ | |
864 | #define MOVE_RATIO 6 | |
865 | ||
866 | /* Indirect calls are expensive, never turn a direct call | |
867 | into an indirect call. */ | |
868 | #define NO_FUNCTION_CSE | |
869 | ||
3ce15347 NC |
870 | /* The four different data regions on the v850. */ |
871 | typedef enum | |
872 | { | |
873 | DATA_AREA_NORMAL, | |
874 | DATA_AREA_SDA, | |
875 | DATA_AREA_TDA, | |
876 | DATA_AREA_ZDA | |
877 | } v850_data_area; | |
878 | ||
3ce15347 NC |
879 | #define TEXT_SECTION_ASM_OP "\t.section .text" |
880 | #define DATA_SECTION_ASM_OP "\t.section .data" | |
881 | #define BSS_SECTION_ASM_OP "\t.section .bss" | |
ae180d84 | 882 | #define SDATA_SECTION_ASM_OP "\t.section .sdata,\"aw\"" |
3ce15347 | 883 | #define SBSS_SECTION_ASM_OP "\t.section .sbss,\"aw\"" |
3ce15347 | 884 | |
471b6f1b HPN |
885 | #define SCOMMON_ASM_OP "\t.scomm\t" |
886 | #define ZCOMMON_ASM_OP "\t.zcomm\t" | |
887 | #define TCOMMON_ASM_OP "\t.tcomm\t" | |
ae180d84 | 888 | |
ae180d84 JL |
889 | #define ASM_COMMENT_START "#" |
890 | ||
891 | /* Output to assembler file text saying following lines | |
892 | may contain character constants, extra white space, comments, etc. */ | |
893 | ||
894 | #define ASM_APP_ON "#APP\n" | |
895 | ||
896 | /* Output to assembler file text saying following lines | |
897 | no longer contain unusual constructs. */ | |
898 | ||
899 | #define ASM_APP_OFF "#NO_APP\n" | |
900 | ||
61db4608 NC |
901 | #undef USER_LABEL_PREFIX |
902 | #define USER_LABEL_PREFIX "_" | |
903 | ||
b4378319 NC |
904 | #define OUTPUT_ADDR_CONST_EXTRA(FILE, X, FAIL) \ |
905 | if (! v850_output_addr_const_extra (FILE, X)) \ | |
906 | goto FAIL | |
73a697d9 | 907 | |
ae180d84 | 908 | /* This says how to output the assembler to define a global |
6db34dd4 | 909 | uninitialized but not common symbol. */ |
ae180d84 | 910 | |
f7620587 | 911 | #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ |
6db34dd4 | 912 | asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN)) |
ae180d84 | 913 | |
3ce15347 NC |
914 | #undef ASM_OUTPUT_ALIGNED_BSS |
915 | #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ | |
916 | v850_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN) | |
917 | ||
918 | /* This says how to output the assembler to define a global | |
d4de0221 | 919 | uninitialized, common symbol. */ |
3ce15347 NC |
920 | #undef ASM_OUTPUT_ALIGNED_COMMON |
921 | #undef ASM_OUTPUT_COMMON | |
922 | #define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN) \ | |
923 | v850_output_common (FILE, DECL, NAME, SIZE, ALIGN) | |
924 | ||
925 | /* This says how to output the assembler to define a local | |
d4de0221 | 926 | uninitialized symbol. */ |
3ce15347 NC |
927 | #undef ASM_OUTPUT_ALIGNED_LOCAL |
928 | #undef ASM_OUTPUT_LOCAL | |
929 | #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \ | |
930 | v850_output_local (FILE, DECL, NAME, SIZE, ALIGN) | |
931 | ||
506a61b1 KG |
932 | /* Globalizing directive for a label. */ |
933 | #define GLOBAL_ASM_OP "\t.global " | |
ae180d84 | 934 | |
4977bab6 | 935 | #define ASM_PN_FORMAT "%s___%lu" |
ae180d84 JL |
936 | |
937 | /* This is how we tell the assembler that two symbols have the same value. */ | |
938 | ||
939 | #define ASM_OUTPUT_DEF(FILE,NAME1,NAME2) \ | |
940 | do { assemble_name(FILE, NAME1); \ | |
941 | fputs(" = ", FILE); \ | |
942 | assemble_name(FILE, NAME2); \ | |
943 | fputc('\n', FILE); } while (0) | |
944 | ||
945 | ||
946 | /* How to refer to registers in assembler output. | |
947 | This sequence is indexed by compiler's hard-register-number (see above). */ | |
948 | ||
949 | #define REGISTER_NAMES \ | |
950 | { "r0", "r1", "r2", "sp", "gp", "r5", "r6" , "r7", \ | |
951 | "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ | |
952 | "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \ | |
953 | "r24", "r25", "r26", "r27", "r28", "r29", "ep", "r31", \ | |
954 | ".fp", ".ap"} | |
955 | ||
956 | #define ADDITIONAL_REGISTER_NAMES \ | |
957 | { { "zero", 0 }, \ | |
958 | { "hp", 2 }, \ | |
959 | { "r3", 3 }, \ | |
960 | { "r4", 4 }, \ | |
961 | { "tp", 5 }, \ | |
962 | { "fp", 29 }, \ | |
963 | { "r30", 30 }, \ | |
964 | { "lp", 31} } | |
965 | ||
966 | /* Print an instruction operand X on file FILE. | |
967 | look in v850.c for details */ | |
968 | ||
3ce15347 | 969 | #define PRINT_OPERAND(FILE, X, CODE) print_operand (FILE, X, CODE) |
ae180d84 JL |
970 | |
971 | #define PRINT_OPERAND_PUNCT_VALID_P(CODE) \ | |
972 | ((CODE) == '.') | |
973 | ||
974 | /* Print a memory operand whose address is X, on file FILE. | |
975 | This uses a function in output-vax.c. */ | |
976 | ||
977 | #define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address (FILE, ADDR) | |
978 | ||
979 | #define ASM_OUTPUT_REG_PUSH(FILE,REGNO) | |
980 | #define ASM_OUTPUT_REG_POP(FILE,REGNO) | |
981 | ||
982 | /* This is how to output an element of a case-vector that is absolute. */ | |
983 | ||
984 | #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ | |
761c70aa KG |
985 | fprintf (FILE, "\t%s .L%d\n", \ |
986 | (TARGET_BIG_SWITCH ? ".long" : ".short"), VALUE) | |
ae180d84 JL |
987 | |
988 | /* This is how to output an element of a case-vector that is relative. */ | |
989 | ||
b4378319 NC |
990 | #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \ |
991 | fprintf (FILE, "\t%s %s.L%d-.L%d%s\n", \ | |
1933ec7e | 992 | (TARGET_BIG_SWITCH ? ".long" : ".short"), \ |
b4378319 NC |
993 | (! TARGET_BIG_SWITCH && TARGET_V850E ? "(" : ""), \ |
994 | VALUE, REL, \ | |
995 | (! TARGET_BIG_SWITCH && TARGET_V850E ? ")>>1" : "")) | |
ae180d84 | 996 | |
674fdc14 | 997 | #define ASM_OUTPUT_ALIGN(FILE, LOG) \ |
ae180d84 JL |
998 | if ((LOG) != 0) \ |
999 | fprintf (FILE, "\t.align %d\n", (LOG)) | |
1000 | ||
956d6950 | 1001 | /* We don't have to worry about dbx compatibility for the v850. */ |
ae180d84 JL |
1002 | #define DEFAULT_GDB_EXTENSIONS 1 |
1003 | ||
1004 | /* Use stabs debugging info by default. */ | |
1005 | #undef PREFERRED_DEBUGGING_TYPE | |
1006 | #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG | |
1007 | ||
ae180d84 JL |
1008 | /* Specify the machine mode that this machine uses |
1009 | for the index in the tablejump instruction. */ | |
1933ec7e | 1010 | #define CASE_VECTOR_MODE (TARGET_BIG_SWITCH ? SImode : HImode) |
ae180d84 | 1011 | |
18543a22 ILT |
1012 | /* Define as C expression which evaluates to nonzero if the tablejump |
1013 | instruction expects the table to contain offsets from the address of the | |
1014 | table. | |
d4de0221 | 1015 | Do not define this if the table should contain absolute addresses. */ |
18543a22 | 1016 | #define CASE_VECTOR_PC_RELATIVE 1 |
1933ec7e JW |
1017 | |
1018 | /* The switch instruction requires that the jump table immediately follow | |
d4de0221 | 1019 | it. */ |
75197b37 | 1020 | #define JUMP_TABLES_IN_TEXT_SECTION 1 |
1933ec7e JW |
1021 | |
1022 | /* svr4.h defines this assuming that 4 byte alignment is required. */ | |
1023 | #undef ASM_OUTPUT_BEFORE_CASE_LABEL | |
1024 | #define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE,PREFIX,NUM,TABLE) \ | |
1025 | ASM_OUTPUT_ALIGN ((FILE), (TARGET_BIG_SWITCH ? 2 : 1)); | |
ae180d84 JL |
1026 | |
1027 | #define WORD_REGISTER_OPERATIONS | |
1028 | ||
1029 | /* Byte and short loads sign extend the value to a word. */ | |
1030 | #define LOAD_EXTEND_OP(MODE) SIGN_EXTEND | |
1031 | ||
ae180d84 JL |
1032 | /* This flag, if defined, says the same insns that convert to a signed fixnum |
1033 | also convert validly to an unsigned one. */ | |
1034 | #define FIXUNS_TRUNC_LIKE_FIX_TRUNC | |
1035 | ||
ae180d84 JL |
1036 | /* Max number of bytes we can move from memory to memory |
1037 | in one reasonably fast instruction. */ | |
1038 | #define MOVE_MAX 4 | |
1039 | ||
1040 | /* Define if shifts truncate the shift count | |
1041 | which implies one can omit a sign-extension or zero-extension | |
1042 | of a shift count. */ | |
1043 | #define SHIFT_COUNT_TRUNCATED 1 | |
1044 | ||
1045 | /* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits | |
1046 | is done just by pretending it is already truncated. */ | |
1047 | #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1 | |
1048 | ||
ae180d84 JL |
1049 | /* Specify the machine mode that pointers have. |
1050 | After generation of rtl, the compiler makes no further distinction | |
1051 | between pointers and any other objects of this machine mode. */ | |
1052 | #define Pmode SImode | |
1053 | ||
1054 | /* A function address in a call instruction | |
1055 | is a byte address (for indexing purposes) | |
1056 | so give the MEM rtx a byte's mode. */ | |
1057 | #define FUNCTION_MODE QImode | |
1058 | ||
ae180d84 | 1059 | /* Tell compiler we want to support GHS pragmas */ |
c58b209a NB |
1060 | #define REGISTER_TARGET_PRAGMAS() do { \ |
1061 | c_register_pragma ("ghs", "interrupt", ghs_pragma_interrupt); \ | |
1062 | c_register_pragma ("ghs", "section", ghs_pragma_section); \ | |
1063 | c_register_pragma ("ghs", "starttda", ghs_pragma_starttda); \ | |
1064 | c_register_pragma ("ghs", "startsda", ghs_pragma_startsda); \ | |
1065 | c_register_pragma ("ghs", "startzda", ghs_pragma_startzda); \ | |
1066 | c_register_pragma ("ghs", "endtda", ghs_pragma_endtda); \ | |
1067 | c_register_pragma ("ghs", "endsda", ghs_pragma_endsda); \ | |
1068 | c_register_pragma ("ghs", "endzda", ghs_pragma_endzda); \ | |
8b97c5f8 | 1069 | } while (0) |
3ce15347 NC |
1070 | |
1071 | /* enum GHS_SECTION_KIND is an enumeration of the kinds of sections that | |
1072 | can appear in the "ghs section" pragma. These names are used to index | |
1073 | into the GHS_default_section_names[] and GHS_current_section_names[] | |
1074 | that are defined in v850.c, and so the ordering of each must remain | |
839a4992 | 1075 | consistent. |
3ce15347 NC |
1076 | |
1077 | These arrays give the default and current names for each kind of | |
1078 | section defined by the GHS pragmas. The current names can be changed | |
1079 | by the "ghs section" pragma. If the current names are null, use | |
1080 | the default names. Note that the two arrays have different types. | |
1081 | ||
1082 | For the *normal* section kinds (like .data, .text, etc.) we do not | |
1083 | want to explicitly force the name of these sections, but would rather | |
1084 | let the linker (or at least the back end) choose the name of the | |
1085 | section, UNLESS the user has force a specific name for these section | |
1086 | kinds. To accomplish this set the name in ghs_default_section_names | |
1087 | to null. */ | |
1088 | ||
1089 | enum GHS_section_kind | |
1090 | { | |
1091 | GHS_SECTION_KIND_DEFAULT, | |
1092 | ||
1093 | GHS_SECTION_KIND_TEXT, | |
1094 | GHS_SECTION_KIND_DATA, | |
1095 | GHS_SECTION_KIND_RODATA, | |
1096 | GHS_SECTION_KIND_BSS, | |
1097 | GHS_SECTION_KIND_SDATA, | |
1098 | GHS_SECTION_KIND_ROSDATA, | |
1099 | GHS_SECTION_KIND_TDATA, | |
1100 | GHS_SECTION_KIND_ZDATA, | |
1101 | GHS_SECTION_KIND_ROZDATA, | |
1102 | ||
1103 | COUNT_OF_GHS_SECTION_KINDS /* must be last */ | |
1104 | }; | |
ae180d84 | 1105 | |
c3edd394 NC |
1106 | /* The following code is for handling pragmas supported by the |
1107 | v850 compiler produced by Green Hills Software. This is at | |
1108 | the specific request of a customer. */ | |
1109 | ||
1110 | typedef struct data_area_stack_element | |
1111 | { | |
1112 | struct data_area_stack_element * prev; | |
1113 | v850_data_area data_area; /* Current default data area. */ | |
1114 | } data_area_stack_element; | |
1115 | ||
1116 | /* Track the current data area set by the | |
1117 | data area pragma (which can be nested). */ | |
1118 | extern data_area_stack_element * data_area_stack; | |
1119 | ||
1120 | /* Names of the various data areas used on the v850. */ | |
1121 | extern union tree_node * GHS_default_section_names [(int) COUNT_OF_GHS_SECTION_KINDS]; | |
1122 | extern union tree_node * GHS_current_section_names [(int) COUNT_OF_GHS_SECTION_KINDS]; | |
1123 | ||
38e01259 | 1124 | /* The assembler op to start the file. */ |
ae180d84 JL |
1125 | |
1126 | #define FILE_ASM_OP "\t.file\n" | |
1127 | ||
1128 | /* Enable the register move pass to improve code. */ | |
1129 | #define ENABLE_REGMOVE_PASS | |
1130 | ||
1131 | ||
1132 | /* Implement ZDA, TDA, and SDA */ | |
1133 | ||
1134 | #define EP_REGNUM 30 /* ep register number */ | |
1135 | ||
50d1ff6a RH |
1136 | #define SYMBOL_FLAG_ZDA (SYMBOL_FLAG_MACH_DEP << 0) |
1137 | #define SYMBOL_FLAG_TDA (SYMBOL_FLAG_MACH_DEP << 1) | |
1138 | #define SYMBOL_FLAG_SDA (SYMBOL_FLAG_MACH_DEP << 2) | |
1139 | #define SYMBOL_REF_ZDA_P(X) ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_ZDA) != 0) | |
1140 | #define SYMBOL_REF_TDA_P(X) ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_TDA) != 0) | |
1141 | #define SYMBOL_REF_SDA_P(X) ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_SDA) != 0) | |
ae180d84 | 1142 | |
d6b5193b RS |
1143 | #define TARGET_ASM_INIT_SECTIONS v850_asm_init_sections |
1144 | ||
88657302 | 1145 | #endif /* ! GCC_V850_H */ |