Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/iq2000/iq2000.h @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | f6334be47118 |
children | 84e7813d76e9 |
rev | line source |
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0 | 1 /* Definitions of target machine for GNU compiler. |
2 Vitesse IQ2000 processors | |
111 | 3 Copyright (C) 2003-2017 Free Software Foundation, Inc. |
0 | 4 |
5 This file is part of GCC. | |
6 | |
7 GCC is free software; you can redistribute it and/or modify it | |
8 under the terms of the GNU General Public License as published | |
9 by the Free Software Foundation; either version 3, or (at your | |
10 option) any later version. | |
11 | |
12 GCC is distributed in the hope that it will be useful, but WITHOUT | |
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
15 License for more details. | |
16 | |
17 You should have received a copy of the GNU General Public License | |
18 along with GCC; see the file COPYING3. If not see | |
19 <http://www.gnu.org/licenses/>. */ | |
20 | |
21 /* Driver configuration. */ | |
22 | |
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23 /* A generic LIB_SPEC with -leval and --*group tacked on. */ |
0 | 24 #undef LIB_SPEC |
25 #define LIB_SPEC "%{!shared:%{!symbolic:--start-group -lc -leval -lgcc --end-group}}" | |
26 | |
27 #undef STARTFILE_SPEC | |
28 #undef ENDFILE_SPEC | |
29 | |
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30 #undef LINK_SPEC |
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31 #define LINK_SPEC "%{h*} %{v:-V} \ |
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32 %{static:-Bstatic} %{shared:-shared} %{symbolic:-Bsymbolic}" |
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33 |
0 | 34 |
35 /* Run-time target specifications. */ | |
36 | |
37 #define TARGET_CPU_CPP_BUILTINS() \ | |
38 do \ | |
39 { \ | |
40 builtin_define ("__iq2000__"); \ | |
41 builtin_assert ("cpu=iq2000"); \ | |
42 builtin_assert ("machine=iq2000"); \ | |
43 } \ | |
44 while (0) | |
45 | |
46 /* Macros used in the machine description to test the flags. */ | |
47 | |
48 #define TARGET_STATS 0 | |
49 | |
50 #define TARGET_DEBUG_MODE 0 | |
51 #define TARGET_DEBUG_A_MODE 0 | |
52 #define TARGET_DEBUG_B_MODE 0 | |
53 #define TARGET_DEBUG_C_MODE 0 | |
54 #define TARGET_DEBUG_D_MODE 0 | |
55 | |
56 #ifndef IQ2000_ISA_DEFAULT | |
57 #define IQ2000_ISA_DEFAULT 1 | |
58 #endif | |
59 | |
60 /* Storage Layout. */ | |
61 | |
62 #define BITS_BIG_ENDIAN 0 | |
63 #define BYTES_BIG_ENDIAN 1 | |
64 #define WORDS_BIG_ENDIAN 1 | |
65 #define BITS_PER_WORD 32 | |
66 #define MAX_BITS_PER_WORD 64 | |
67 #define UNITS_PER_WORD 4 | |
68 #define MIN_UNITS_PER_WORD 4 | |
69 #define POINTER_SIZE 32 | |
70 | |
71 /* Define this macro if it is advisable to hold scalars in registers | |
72 in a wider mode than that declared by the program. In such cases, | |
73 the value is constrained to be within the bounds of the declared | |
74 type, but kept valid in the wider mode. The signedness of the | |
75 extension may differ from that of the type. | |
76 | |
77 We promote any value smaller than SImode up to SImode. */ | |
78 | |
79 #define PROMOTE_MODE(MODE, UNSIGNEDP, TYPE) \ | |
80 if (GET_MODE_CLASS (MODE) == MODE_INT \ | |
81 && GET_MODE_SIZE (MODE) < 4) \ | |
82 (MODE) = SImode; | |
83 | |
84 #define PARM_BOUNDARY 32 | |
85 | |
86 #define STACK_BOUNDARY 64 | |
87 | |
88 #define FUNCTION_BOUNDARY 32 | |
89 | |
90 #define BIGGEST_ALIGNMENT 64 | |
91 | |
92 #undef DATA_ALIGNMENT | |
93 #define DATA_ALIGNMENT(TYPE, ALIGN) \ | |
94 ((((ALIGN) < BITS_PER_WORD) \ | |
95 && (TREE_CODE (TYPE) == ARRAY_TYPE \ | |
96 || TREE_CODE (TYPE) == UNION_TYPE \ | |
97 || TREE_CODE (TYPE) == RECORD_TYPE)) ? BITS_PER_WORD : (ALIGN)) | |
98 | |
99 #define EMPTY_FIELD_BOUNDARY 32 | |
100 | |
101 #define STRUCTURE_SIZE_BOUNDARY 8 | |
102 | |
103 #define STRICT_ALIGNMENT 1 | |
104 | |
105 #define PCC_BITFIELD_TYPE_MATTERS 1 | |
106 | |
107 | |
108 /* Layout of Source Language Data Types. */ | |
109 | |
110 #define INT_TYPE_SIZE 32 | |
111 #define SHORT_TYPE_SIZE 16 | |
112 #define LONG_TYPE_SIZE 32 | |
113 #define LONG_LONG_TYPE_SIZE 64 | |
114 #define CHAR_TYPE_SIZE BITS_PER_UNIT | |
115 #define FLOAT_TYPE_SIZE 32 | |
116 #define DOUBLE_TYPE_SIZE 64 | |
117 #define LONG_DOUBLE_TYPE_SIZE 64 | |
118 #define DEFAULT_SIGNED_CHAR 1 | |
119 | |
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120 #undef SIZE_TYPE |
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121 #define SIZE_TYPE "unsigned int" |
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122 |
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123 #undef PTRDIFF_TYPE |
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124 #define PTRDIFF_TYPE "int" |
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125 |
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126 #undef WCHAR_TYPE |
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127 #define WCHAR_TYPE "long int" |
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128 |
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129 #undef WCHAR_TYPE_SIZE |
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130 #define WCHAR_TYPE_SIZE BITS_PER_WORD |
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131 |
0 | 132 |
133 /* Register Basics. */ | |
134 | |
135 /* On the IQ2000, we have 32 integer registers. */ | |
136 #define FIRST_PSEUDO_REGISTER 33 | |
137 | |
138 #define FIXED_REGISTERS \ | |
139 { \ | |
140 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ | |
141 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 1, 1 \ | |
142 } | |
143 | |
144 #define CALL_USED_REGISTERS \ | |
145 { \ | |
146 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \ | |
147 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1 \ | |
148 } | |
149 | |
150 | |
151 /* Order of allocation of registers. */ | |
152 | |
153 #define REG_ALLOC_ORDER \ | |
154 { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, \ | |
155 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 \ | |
156 } | |
157 | |
158 | |
159 | |
160 #define AVOID_CCMODE_COPIES | |
161 | |
162 | |
163 /* Register Classes. */ | |
164 | |
165 enum reg_class | |
166 { | |
167 NO_REGS, /* No registers in set. */ | |
168 GR_REGS, /* Integer registers. */ | |
169 ALL_REGS, /* All registers. */ | |
170 LIM_REG_CLASSES /* Max value + 1. */ | |
171 }; | |
172 | |
173 #define GENERAL_REGS GR_REGS | |
174 | |
175 #define N_REG_CLASSES (int) LIM_REG_CLASSES | |
176 | |
177 #define REG_CLASS_NAMES \ | |
178 { \ | |
179 "NO_REGS", \ | |
180 "GR_REGS", \ | |
181 "ALL_REGS" \ | |
182 } | |
183 | |
184 #define REG_CLASS_CONTENTS \ | |
185 { \ | |
186 { 0x00000000, 0x00000000 }, /* No registers, */ \ | |
187 { 0xffffffff, 0x00000000 }, /* Integer registers. */ \ | |
188 { 0xffffffff, 0x00000001 } /* All registers. */ \ | |
189 } | |
190 | |
191 #define REGNO_REG_CLASS(REGNO) \ | |
192 ((REGNO) <= GP_REG_LAST + 1 ? GR_REGS : NO_REGS) | |
193 | |
194 #define BASE_REG_CLASS (GR_REGS) | |
195 | |
196 #define INDEX_REG_CLASS NO_REGS | |
197 | |
198 #define REGNO_OK_FOR_INDEX_P(regno) 0 | |
199 | |
200 #define PREFERRED_RELOAD_CLASS(X,CLASS) \ | |
201 ((CLASS) != ALL_REGS \ | |
202 ? (CLASS) \ | |
203 : ((GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \ | |
204 || GET_MODE_CLASS (GET_MODE (X)) == MODE_COMPLEX_FLOAT) \ | |
205 ? (GR_REGS) \ | |
206 : ((GET_MODE_CLASS (GET_MODE (X)) == MODE_INT \ | |
207 || GET_MODE (X) == VOIDmode) \ | |
208 ? (GR_REGS) \ | |
209 : (CLASS)))) | |
210 | |
211 | |
212 /* Basic Stack Layout. */ | |
213 | |
111 | 214 #define STACK_GROWS_DOWNWARD 1 |
0 | 215 |
216 #define FRAME_GROWS_DOWNWARD 0 | |
217 | |
218 /* Use the default value zero. */ | |
219 /* #define STACK_POINTER_OFFSET 0 */ | |
220 | |
221 #define FIRST_PARM_OFFSET(FNDECL) 0 | |
222 | |
223 /* The return address for the current frame is in r31 if this is a leaf | |
224 function. Otherwise, it is on the stack. It is at a variable offset | |
225 from sp/fp/ap, so we define a fake hard register rap which is a | |
226 pointer to the return address on the stack. This always gets eliminated | |
227 during reload to be either the frame pointer or the stack pointer plus | |
228 an offset. */ | |
229 | |
230 #define RETURN_ADDR_RTX(count, frame) \ | |
231 (((count) == 0) \ | |
232 ? (leaf_function_p () \ | |
233 ? gen_rtx_REG (Pmode, GP_REG_FIRST + 31) \ | |
234 : gen_rtx_MEM (Pmode, gen_rtx_REG (Pmode, \ | |
235 RETURN_ADDRESS_POINTER_REGNUM))) \ | |
236 : (rtx) 0) | |
237 | |
238 /* Before the prologue, RA lives in r31. */ | |
111 | 239 #define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (Pmode, GP_REG_FIRST + 31) |
0 | 240 |
241 | |
242 /* Register That Address the Stack Frame. */ | |
243 | |
244 #define STACK_POINTER_REGNUM (GP_REG_FIRST + 29) | |
245 #define FRAME_POINTER_REGNUM (GP_REG_FIRST + 1) | |
246 #define HARD_FRAME_POINTER_REGNUM (GP_REG_FIRST + 27) | |
247 #define ARG_POINTER_REGNUM GP_REG_FIRST | |
248 #define RETURN_ADDRESS_POINTER_REGNUM RAP_REG_NUM | |
249 #define STATIC_CHAIN_REGNUM (GP_REG_FIRST + 2) | |
250 | |
251 | |
252 /* Eliminating the Frame Pointer and the Arg Pointer. */ | |
253 | |
254 #define ELIMINABLE_REGS \ | |
255 {{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ | |
256 { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}, \ | |
257 { RETURN_ADDRESS_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ | |
258 { RETURN_ADDRESS_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}, \ | |
259 { RETURN_ADDRESS_POINTER_REGNUM, GP_REG_FIRST + 31}, \ | |
260 { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ | |
261 { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}} | |
262 | |
263 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ | |
264 (OFFSET) = iq2000_initial_elimination_offset ((FROM), (TO)) | |
265 | |
266 /* Passing Function Arguments on the Stack. */ | |
267 | |
268 /* #define PUSH_ROUNDING(BYTES) 0 */ | |
269 | |
270 #define ACCUMULATE_OUTGOING_ARGS 1 | |
271 | |
272 #define REG_PARM_STACK_SPACE(FNDECL) 0 | |
273 | |
274 #define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1 | |
275 | |
276 | |
277 /* Function Arguments in Registers. */ | |
278 | |
279 #define MAX_ARGS_IN_REGISTERS 8 | |
280 | |
281 typedef struct iq2000_args | |
282 { | |
283 int gp_reg_found; /* Whether a gp register was found yet. */ | |
284 unsigned int arg_number; /* Argument number. */ | |
285 unsigned int arg_words; /* # total words the arguments take. */ | |
286 unsigned int fp_arg_words; /* # words for FP args (IQ2000_EABI only). */ | |
287 int last_arg_fp; /* Nonzero if last arg was FP (EABI only). */ | |
288 int fp_code; /* Mode of FP arguments. */ | |
289 unsigned int num_adjusts; /* Number of adjustments made. */ | |
290 /* Adjustments made to args pass in regs. */ | |
111 | 291 rtx adjust[MAX_ARGS_IN_REGISTERS * 2]; |
0 | 292 } CUMULATIVE_ARGS; |
293 | |
294 /* Initialize a variable CUM of type CUMULATIVE_ARGS | |
295 for a call to a function whose data type is FNTYPE. | |
296 For a library call, FNTYPE is 0. */ | |
297 #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \ | |
298 init_cumulative_args (& CUM, FNTYPE, LIBNAME) \ | |
299 | |
300 #define FUNCTION_ARG_REGNO_P(N) \ | |
301 (((N) >= GP_ARG_FIRST && (N) <= GP_ARG_LAST)) | |
302 | |
303 | |
304 /* On the IQ2000, R2 and R3 are the only register thus used. */ | |
305 | |
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306 #define FUNCTION_VALUE_REGNO_P(N) iq2000_function_value_regno_p (N) |
0 | 307 |
308 | |
309 /* How Large Values are Returned. */ | |
310 | |
311 #define DEFAULT_PCC_STRUCT_RETURN 0 | |
312 | |
313 /* Function Entry and Exit. */ | |
314 | |
315 #define EXIT_IGNORE_STACK 1 | |
316 | |
317 | |
318 /* Generating Code for Profiling. */ | |
319 | |
320 #define FUNCTION_PROFILER(FILE, LABELNO) \ | |
321 { \ | |
322 fprintf (FILE, "\t.set\tnoreorder\n"); \ | |
323 fprintf (FILE, "\t.set\tnoat\n"); \ | |
324 fprintf (FILE, "\tmove\t%s,%s\t\t# save current return address\n", \ | |
325 reg_names[GP_REG_FIRST + 1], reg_names[GP_REG_FIRST + 31]); \ | |
326 fprintf (FILE, "\tjal\t_mcount\n"); \ | |
327 fprintf (FILE, \ | |
328 "\t%s\t%s,%s,%d\t\t# _mcount pops 2 words from stack\n", \ | |
329 "subu", \ | |
330 reg_names[STACK_POINTER_REGNUM], \ | |
331 reg_names[STACK_POINTER_REGNUM], \ | |
332 Pmode == DImode ? 16 : 8); \ | |
333 fprintf (FILE, "\t.set\treorder\n"); \ | |
334 fprintf (FILE, "\t.set\tat\n"); \ | |
335 } | |
336 | |
337 | |
338 /* Trampolines for Nested Functions. */ | |
339 | |
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340 #define TRAMPOLINE_CODE_SIZE (8*4) |
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341 #define TRAMPOLINE_SIZE (TRAMPOLINE_CODE_SIZE + 2*GET_MODE_SIZE (Pmode)) |
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342 #define TRAMPOLINE_ALIGNMENT GET_MODE_ALIGNMENT (Pmode) |
0 | 343 |
344 | |
345 /* Addressing Modes. */ | |
346 | |
347 #define CONSTANT_ADDRESS_P(X) \ | |
348 ( (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \ | |
349 || GET_CODE (X) == CONST_INT || GET_CODE (X) == HIGH \ | |
350 || (GET_CODE (X) == CONST))) | |
351 | |
352 #define MAX_REGS_PER_ADDRESS 1 | |
353 | |
354 #define REG_OK_FOR_INDEX_P(X) 0 | |
355 | |
356 | |
357 /* Describing Relative Costs of Operations. */ | |
358 | |
359 #define REGISTER_MOVE_COST(MODE, FROM, TO) 2 | |
360 | |
361 #define MEMORY_MOVE_COST(MODE,CLASS,TO_P) \ | |
362 (TO_P ? 2 : 16) | |
363 | |
364 #define BRANCH_COST(speed_p, predictable_p) 2 | |
365 | |
366 #define SLOW_BYTE_ACCESS 1 | |
367 | |
368 #define NO_FUNCTION_CSE 1 | |
369 | |
370 #define ADJUST_COST(INSN,LINK,DEP_INSN,COST) \ | |
371 if (REG_NOTE_KIND (LINK) != 0) \ | |
372 (COST) = 0; /* Anti or output dependence. */ | |
373 | |
374 | |
375 /* Dividing the output into sections. */ | |
376 | |
377 #define TEXT_SECTION_ASM_OP "\t.text" /* Instructions. */ | |
378 | |
379 #define DATA_SECTION_ASM_OP "\t.data" /* Large data. */ | |
380 | |
381 | |
382 /* The Overall Framework of an Assembler File. */ | |
383 | |
384 #define ASM_COMMENT_START " #" | |
385 | |
386 #define ASM_APP_ON "#APP\n" | |
387 | |
388 #define ASM_APP_OFF "#NO_APP\n" | |
389 | |
390 | |
391 /* Output and Generation of Labels. */ | |
392 | |
393 #undef ASM_GENERATE_INTERNAL_LABEL | |
394 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ | |
395 sprintf ((LABEL), "*%s%s%ld", (LOCAL_LABEL_PREFIX), (PREFIX), (long) (NUM)) | |
396 | |
397 #define GLOBAL_ASM_OP "\t.globl\t" | |
398 | |
399 | |
400 /* Output of Assembler Instructions. */ | |
401 | |
402 #define REGISTER_NAMES \ | |
403 { \ | |
404 "%0", "%1", "%2", "%3", "%4", "%5", "%6", "%7", \ | |
405 "%8", "%9", "%10", "%11", "%12", "%13", "%14", "%15", \ | |
406 "%16", "%17", "%18", "%19", "%20", "%21", "%22", "%23", \ | |
407 "%24", "%25", "%26", "%27", "%28", "%29", "%30", "%31", "%rap" \ | |
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408 } |
0 | 409 |
410 #define ADDITIONAL_REGISTER_NAMES \ | |
411 { \ | |
412 { "%0", 0 + GP_REG_FIRST }, \ | |
413 { "%1", 1 + GP_REG_FIRST }, \ | |
414 { "%2", 2 + GP_REG_FIRST }, \ | |
415 { "%3", 3 + GP_REG_FIRST }, \ | |
416 { "%4", 4 + GP_REG_FIRST }, \ | |
417 { "%5", 5 + GP_REG_FIRST }, \ | |
418 { "%6", 6 + GP_REG_FIRST }, \ | |
419 { "%7", 7 + GP_REG_FIRST }, \ | |
420 { "%8", 8 + GP_REG_FIRST }, \ | |
421 { "%9", 9 + GP_REG_FIRST }, \ | |
422 { "%10", 10 + GP_REG_FIRST }, \ | |
423 { "%11", 11 + GP_REG_FIRST }, \ | |
424 { "%12", 12 + GP_REG_FIRST }, \ | |
425 { "%13", 13 + GP_REG_FIRST }, \ | |
426 { "%14", 14 + GP_REG_FIRST }, \ | |
427 { "%15", 15 + GP_REG_FIRST }, \ | |
428 { "%16", 16 + GP_REG_FIRST }, \ | |
429 { "%17", 17 + GP_REG_FIRST }, \ | |
430 { "%18", 18 + GP_REG_FIRST }, \ | |
431 { "%19", 19 + GP_REG_FIRST }, \ | |
432 { "%20", 20 + GP_REG_FIRST }, \ | |
433 { "%21", 21 + GP_REG_FIRST }, \ | |
434 { "%22", 22 + GP_REG_FIRST }, \ | |
435 { "%23", 23 + GP_REG_FIRST }, \ | |
436 { "%24", 24 + GP_REG_FIRST }, \ | |
437 { "%25", 25 + GP_REG_FIRST }, \ | |
438 { "%26", 26 + GP_REG_FIRST }, \ | |
439 { "%27", 27 + GP_REG_FIRST }, \ | |
440 { "%28", 28 + GP_REG_FIRST }, \ | |
441 { "%29", 29 + GP_REG_FIRST }, \ | |
442 { "%30", 27 + GP_REG_FIRST }, \ | |
443 { "%31", 31 + GP_REG_FIRST }, \ | |
444 { "%rap", 32 + GP_REG_FIRST }, \ | |
445 } | |
446 | |
447 /* Check if the current insn needs a nop in front of it | |
448 because of load delays, and also update the delay slot statistics. */ | |
449 | |
450 #define FINAL_PRESCAN_INSN(INSN, OPVEC, NOPERANDS) \ | |
451 final_prescan_insn (INSN, OPVEC, NOPERANDS) | |
452 | |
453 #define DBR_OUTPUT_SEQEND(STREAM) \ | |
454 do \ | |
455 { \ | |
456 fputs ("\n", STREAM); \ | |
457 } \ | |
458 while (0) | |
459 | |
460 #define LOCAL_LABEL_PREFIX "$" | |
461 | |
462 #define USER_LABEL_PREFIX "" | |
463 | |
464 | |
465 /* Output of dispatch tables. */ | |
466 | |
467 #define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM, BODY, VALUE, REL) \ | |
468 do \ | |
469 { \ | |
470 fprintf (STREAM, "\t%s\t%sL%d\n", \ | |
471 Pmode == DImode ? ".dword" : ".word", \ | |
472 LOCAL_LABEL_PREFIX, VALUE); \ | |
473 } \ | |
474 while (0) | |
475 | |
476 #define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \ | |
477 fprintf (STREAM, "\t%s\t%sL%d\n", \ | |
478 Pmode == DImode ? ".dword" : ".word", \ | |
479 LOCAL_LABEL_PREFIX, \ | |
480 VALUE) | |
481 | |
482 | |
483 /* Assembler Commands for Alignment. */ | |
484 | |
485 #undef ASM_OUTPUT_SKIP | |
486 #define ASM_OUTPUT_SKIP(STREAM,SIZE) \ | |
487 fprintf (STREAM, "\t.space\t" HOST_WIDE_INT_PRINT_UNSIGNED "\n", \ | |
488 (unsigned HOST_WIDE_INT)(SIZE)) | |
489 | |
490 #define ASM_OUTPUT_ALIGN(STREAM,LOG) \ | |
491 if ((LOG) != 0) \ | |
492 fprintf (STREAM, "\t.balign %d\n", 1<<(LOG)) | |
493 | |
494 | |
495 /* Macros Affecting all Debug Formats. */ | |
496 | |
497 #define DEBUGGER_AUTO_OFFSET(X) \ | |
498 iq2000_debugger_offset (X, (HOST_WIDE_INT) 0) | |
499 | |
500 #define DEBUGGER_ARG_OFFSET(OFFSET, X) \ | |
501 iq2000_debugger_offset (X, (HOST_WIDE_INT) OFFSET) | |
502 | |
503 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG | |
504 | |
505 #define DWARF2_DEBUGGING_INFO 1 | |
506 | |
507 | |
508 /* Miscellaneous Parameters. */ | |
509 | |
510 #define CASE_VECTOR_MODE SImode | |
511 | |
111 | 512 #define WORD_REGISTER_OPERATIONS 1 |
0 | 513 |
514 #define LOAD_EXTEND_OP(MODE) ZERO_EXTEND | |
515 | |
516 #define MOVE_MAX 4 | |
517 | |
518 #define MAX_MOVE_MAX 8 | |
519 | |
520 #define SHIFT_COUNT_TRUNCATED 1 | |
521 | |
522 #define STORE_FLAG_VALUE 1 | |
523 | |
524 #define Pmode SImode | |
525 | |
526 #define FUNCTION_MODE SImode | |
527 | |
528 /* IQ2000 external variables defined in iq2000.c. */ | |
529 | |
530 /* Comparison type. */ | |
531 enum cmp_type | |
532 { | |
533 CMP_SI, /* Compare four byte integers. */ | |
534 CMP_DI, /* Compare eight byte integers. */ | |
535 CMP_SF, /* Compare single precision floats. */ | |
536 CMP_DF, /* Compare double precision floats. */ | |
537 CMP_MAX /* Max comparison type. */ | |
538 }; | |
539 | |
540 /* Types of delay slot. */ | |
541 enum delay_type | |
542 { | |
543 DELAY_NONE, /* No delay slot. */ | |
544 DELAY_LOAD, /* Load from memory delay. */ | |
545 DELAY_FCMP /* Delay after doing c.<xx>.{d,s}. */ | |
546 }; | |
547 | |
548 /* Recast the cpu class to be the cpu attribute. */ | |
549 #define iq2000_cpu_attr ((enum attr_cpu) iq2000_tune) | |
550 | |
551 #define BITMASK_UPPER16 ((unsigned long) 0xffff << 16) /* 0xffff0000 */ | |
552 #define BITMASK_LOWER16 ((unsigned long) 0xffff) /* 0x0000ffff */ | |
553 | |
554 | |
555 #define GENERATE_BRANCHLIKELY (ISA_HAS_BRANCHLIKELY) | |
556 | |
557 /* Macros to decide whether certain features are available or not, | |
558 depending on the instruction set architecture level. */ | |
559 | |
560 #define BRANCH_LIKELY_P() GENERATE_BRANCHLIKELY | |
561 | |
562 /* ISA has branch likely instructions. */ | |
563 #define ISA_HAS_BRANCHLIKELY (iq2000_isa == 1) | |
564 | |
565 | |
566 #undef ASM_SPEC | |
567 | |
568 | |
569 /* The mapping from gcc register number to DWARF 2 CFA column number. */ | |
570 #define DWARF_FRAME_REGNUM(REG) (REG) | |
571 | |
572 /* The DWARF 2 CFA column which tracks the return address. */ | |
573 #define DWARF_FRAME_RETURN_COLUMN (GP_REG_FIRST + 31) | |
574 | |
575 /* Describe how we implement __builtin_eh_return. */ | |
576 #define EH_RETURN_DATA_REGNO(N) ((N) < 4 ? (N) + GP_ARG_FIRST : INVALID_REGNUM) | |
577 | |
578 /* The EH_RETURN_STACKADJ_RTX macro returns RTL which describes the | |
579 location used to store the amount to adjust the stack. This is | |
580 usually a register that is available from end of the function's body | |
581 to the end of the epilogue. Thus, this cannot be a register used as a | |
582 temporary by the epilogue. | |
583 | |
584 This must be an integer register. */ | |
585 #define EH_RETURN_STACKADJ_REGNO 3 | |
586 #define EH_RETURN_STACKADJ_RTX gen_rtx_REG (Pmode, EH_RETURN_STACKADJ_REGNO) | |
587 | |
588 /* The EH_RETURN_HANDLER_RTX macro returns RTL which describes the | |
589 location used to store the address the processor should jump to | |
590 catch exception. This is usually a registers that is available from | |
591 end of the function's body to the end of the epilogue. Thus, this | |
592 cannot be a register used as a temporary by the epilogue. | |
593 | |
594 This must be an address register. */ | |
595 #define EH_RETURN_HANDLER_REGNO 26 | |
596 #define EH_RETURN_HANDLER_RTX \ | |
597 gen_rtx_REG (Pmode, EH_RETURN_HANDLER_REGNO) | |
598 | |
599 /* Offsets recorded in opcodes are a multiple of this alignment factor. */ | |
600 #define DWARF_CIE_DATA_ALIGNMENT 4 | |
601 | |
602 /* For IQ2000, width of a floating point register. */ | |
603 #define UNITS_PER_FPREG 4 | |
604 | |
605 /* Force right-alignment for small varargs in 32 bit little_endian mode */ | |
606 | |
607 #define PAD_VARARGS_DOWN !BYTES_BIG_ENDIAN | |
608 | |
609 /* Internal macros to classify a register number as to whether it's a | |
610 general purpose register, a floating point register, a | |
611 multiply/divide register, or a status register. */ | |
612 | |
613 #define GP_REG_FIRST 0 | |
614 #define GP_REG_LAST 31 | |
615 #define GP_REG_NUM (GP_REG_LAST - GP_REG_FIRST + 1) | |
616 | |
617 #define RAP_REG_NUM 32 | |
618 #define AT_REGNUM (GP_REG_FIRST + 1) | |
619 | |
620 #define GP_REG_P(REGNO) \ | |
621 ((unsigned int) ((int) (REGNO) - GP_REG_FIRST) < GP_REG_NUM) | |
622 | |
623 /* IQ2000 registers used in prologue/epilogue code when the stack frame | |
624 is larger than 32K bytes. These registers must come from the | |
625 scratch register set, and not used for passing and returning | |
626 arguments and any other information used in the calling sequence. */ | |
627 | |
628 #define IQ2000_TEMP1_REGNUM (GP_REG_FIRST + 12) | |
629 #define IQ2000_TEMP2_REGNUM (GP_REG_FIRST + 13) | |
630 | |
631 /* This macro is used later on in the file. */ | |
632 #define GR_REG_CLASS_P(CLASS) \ | |
633 ((CLASS) == GR_REGS) | |
634 | |
635 #define SMALL_INT(X) ((unsigned HOST_WIDE_INT) (INTVAL (X) + 0x8000) < 0x10000) | |
636 #define SMALL_INT_UNSIGNED(X) ((unsigned HOST_WIDE_INT) (INTVAL (X)) < 0x10000) | |
637 | |
638 /* Certain machines have the property that some registers cannot be | |
639 copied to some other registers without using memory. Define this | |
640 macro on those machines to be a C expression that is nonzero if | |
641 objects of mode MODE in registers of CLASS1 can only be copied to | |
642 registers of class CLASS2 by storing a register of CLASS1 into | |
643 memory and loading that memory location into a register of CLASS2. | |
644 | |
645 Do not define this macro if its value would always be zero. */ | |
646 | |
647 /* Return the maximum number of consecutive registers | |
648 needed to represent mode MODE in a register of class CLASS. */ | |
649 | |
650 #define CLASS_UNITS(mode, size) \ | |
651 ((GET_MODE_SIZE (mode) + (size) - 1) / (size)) | |
652 | |
653 /* If defined, gives a class of registers that cannot be used as the | |
654 operand of a SUBREG that changes the mode of the object illegally. */ | |
655 | |
656 #define CLASS_CANNOT_CHANGE_MODE 0 | |
657 | |
658 /* Defines illegal mode changes for CLASS_CANNOT_CHANGE_MODE. */ | |
659 | |
660 #define CLASS_CANNOT_CHANGE_MODE_P(FROM,TO) \ | |
661 (GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO)) | |
662 | |
663 /* Make sure 4 words are always allocated on the stack. */ | |
664 | |
665 #ifndef STACK_ARGS_ADJUST | |
666 #define STACK_ARGS_ADJUST(SIZE) \ | |
667 { \ | |
668 if (SIZE.constant < 4 * UNITS_PER_WORD) \ | |
669 SIZE.constant = 4 * UNITS_PER_WORD; \ | |
670 } | |
671 #endif | |
672 | |
673 | |
674 /* Symbolic macros for the registers used to return integer and floating | |
675 point values. */ | |
676 | |
677 #define GP_RETURN (GP_REG_FIRST + 2) | |
678 | |
679 /* Symbolic macros for the first/last argument registers. */ | |
680 | |
681 #define GP_ARG_FIRST (GP_REG_FIRST + 4) | |
682 #define GP_ARG_LAST (GP_REG_FIRST + 11) | |
683 | |
684 #define MAX_ARGS_IN_REGISTERS 8 | |
685 | |
686 | |
687 /* Tell prologue and epilogue if register REGNO should be saved / restored. */ | |
688 | |
689 #define MUST_SAVE_REGISTER(regno) \ | |
690 ((df_regs_ever_live_p (regno) && !call_used_regs[regno]) \ | |
691 || (regno == HARD_FRAME_POINTER_REGNUM && frame_pointer_needed) \ | |
692 || (regno == (GP_REG_FIRST + 31) && df_regs_ever_live_p (GP_REG_FIRST + 31))) | |
693 | |
694 /* ALIGN FRAMES on double word boundaries */ | |
695 #ifndef IQ2000_STACK_ALIGN | |
696 #define IQ2000_STACK_ALIGN(LOC) (((LOC) + 7) & ~7) | |
697 #endif | |
698 | |
699 | |
700 /* These assume that REGNO is a hard or pseudo reg number. | |
701 They give nonzero only if REGNO is a hard reg of the suitable class | |
702 or a pseudo reg currently allocated to a suitable hard reg. | |
703 These definitions are NOT overridden anywhere. */ | |
704 | |
705 #define BASE_REG_P(regno, mode) \ | |
706 (GP_REG_P (regno)) | |
707 | |
708 #define GP_REG_OR_PSEUDO_STRICT_P(regno, mode) \ | |
709 BASE_REG_P((regno < FIRST_PSEUDO_REGISTER) ? regno : reg_renumber[regno], \ | |
710 (mode)) | |
711 | |
712 #define GP_REG_OR_PSEUDO_NONSTRICT_P(regno, mode) \ | |
713 (((regno) >= FIRST_PSEUDO_REGISTER) || (BASE_REG_P ((regno), (mode)))) | |
714 | |
715 #define REGNO_MODE_OK_FOR_BASE_P(regno, mode) \ | |
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
716 GP_REG_OR_PSEUDO_STRICT_P ((int) (regno), (mode)) |
0 | 717 |
718 /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx | |
719 and check its validity for a certain class. | |
720 We have two alternate definitions for each of them. | |
721 The usual definition accepts all pseudo regs; the other rejects them all. | |
722 The symbol REG_OK_STRICT causes the latter definition to be used. | |
723 | |
724 Most source files want to accept pseudo regs in the hope that | |
725 they will get allocated to the class that the insn wants them to be in. | |
726 Some source files that are used after register allocation | |
727 need to be strict. */ | |
728 | |
729 #ifndef REG_OK_STRICT | |
730 #define REG_MODE_OK_FOR_BASE_P(X, MODE) \ | |
731 iq2000_reg_mode_ok_for_base_p (X, MODE, 0) | |
732 #else | |
733 #define REG_MODE_OK_FOR_BASE_P(X, MODE) \ | |
734 iq2000_reg_mode_ok_for_base_p (X, MODE, 1) | |
735 #endif | |
736 | |
737 #if 1 | |
738 #define GO_PRINTF(x) fprintf (stderr, (x)) | |
739 #define GO_PRINTF2(x,y) fprintf (stderr, (x), (y)) | |
740 #define GO_DEBUG_RTX(x) debug_rtx (x) | |
741 | |
742 #else | |
743 #define GO_PRINTF(x) | |
744 #define GO_PRINTF2(x,y) | |
745 #define GO_DEBUG_RTX(x) | |
746 #endif | |
747 | |
748 /* If defined, modifies the length assigned to instruction INSN as a | |
749 function of the context in which it is used. LENGTH is an lvalue | |
750 that contains the initially computed length of the insn and should | |
751 be updated with the correct length of the insn. */ | |
752 #define ADJUST_INSN_LENGTH(INSN, LENGTH) \ | |
753 ((LENGTH) = iq2000_adjust_insn_length ((INSN), (LENGTH))) | |
754 | |
755 | |
756 | |
757 | |
758 /* How to tell the debugger about changes of source files. */ | |
759 | |
760 #ifndef SET_FILE_NUMBER | |
761 #define SET_FILE_NUMBER() ++ num_source_filenames | |
762 #endif | |
763 | |
764 /* This is how to output a note the debugger telling it the line number | |
765 to which the following sequence of instructions corresponds. */ | |
766 | |
767 #ifndef LABEL_AFTER_LOC | |
768 #define LABEL_AFTER_LOC(STREAM) | |
769 #endif | |
770 | |
771 | |
772 /* Default to -G 8 */ | |
773 #ifndef IQ2000_DEFAULT_GVALUE | |
774 #define IQ2000_DEFAULT_GVALUE 8 | |
775 #endif | |
776 | |
777 #define SDATA_SECTION_ASM_OP "\t.sdata" /* Small data. */ | |
778 | |
779 | |
780 /* Which instruction set architecture to use. */ | |
781 extern int iq2000_isa; | |
782 | |
783 enum iq2000_builtins | |
784 { | |
785 IQ2000_BUILTIN_ADO16, | |
786 IQ2000_BUILTIN_CFC0, | |
787 IQ2000_BUILTIN_CFC1, | |
788 IQ2000_BUILTIN_CFC2, | |
789 IQ2000_BUILTIN_CFC3, | |
790 IQ2000_BUILTIN_CHKHDR, | |
791 IQ2000_BUILTIN_CTC0, | |
792 IQ2000_BUILTIN_CTC1, | |
793 IQ2000_BUILTIN_CTC2, | |
794 IQ2000_BUILTIN_CTC3, | |
795 IQ2000_BUILTIN_LU, | |
796 IQ2000_BUILTIN_LUC32L, | |
797 IQ2000_BUILTIN_LUC64, | |
798 IQ2000_BUILTIN_LUC64L, | |
799 IQ2000_BUILTIN_LUK, | |
800 IQ2000_BUILTIN_LULCK, | |
801 IQ2000_BUILTIN_LUM32, | |
802 IQ2000_BUILTIN_LUM32L, | |
803 IQ2000_BUILTIN_LUM64, | |
804 IQ2000_BUILTIN_LUM64L, | |
805 IQ2000_BUILTIN_LUR, | |
806 IQ2000_BUILTIN_LURL, | |
807 IQ2000_BUILTIN_MFC0, | |
808 IQ2000_BUILTIN_MFC1, | |
809 IQ2000_BUILTIN_MFC2, | |
810 IQ2000_BUILTIN_MFC3, | |
811 IQ2000_BUILTIN_MRGB, | |
812 IQ2000_BUILTIN_MTC0, | |
813 IQ2000_BUILTIN_MTC1, | |
814 IQ2000_BUILTIN_MTC2, | |
815 IQ2000_BUILTIN_MTC3, | |
816 IQ2000_BUILTIN_PKRL, | |
817 IQ2000_BUILTIN_RAM, | |
818 IQ2000_BUILTIN_RB, | |
819 IQ2000_BUILTIN_RX, | |
820 IQ2000_BUILTIN_SRRD, | |
821 IQ2000_BUILTIN_SRRDL, | |
822 IQ2000_BUILTIN_SRULC, | |
823 IQ2000_BUILTIN_SRULCK, | |
824 IQ2000_BUILTIN_SRWR, | |
825 IQ2000_BUILTIN_SRWRU, | |
826 IQ2000_BUILTIN_TRAPQF, | |
827 IQ2000_BUILTIN_TRAPQFL, | |
828 IQ2000_BUILTIN_TRAPQN, | |
829 IQ2000_BUILTIN_TRAPQNE, | |
830 IQ2000_BUILTIN_TRAPRE, | |
831 IQ2000_BUILTIN_TRAPREL, | |
832 IQ2000_BUILTIN_WB, | |
833 IQ2000_BUILTIN_WBR, | |
834 IQ2000_BUILTIN_WBU, | |
835 IQ2000_BUILTIN_WX, | |
836 IQ2000_BUILTIN_SYSCALL | |
837 }; |