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4a71579b PC |
1 | /* |
2 | * Copyright (C) 2012-2019 Free Software Foundation, Inc. | |
3 | * | |
4 | * This file is part of GNU lightning. | |
5 | * | |
6 | * GNU lightning is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU Lesser General Public License as published | |
8 | * by the Free Software Foundation; either version 3, or (at your option) | |
9 | * any later version. | |
10 | * | |
11 | * GNU lightning is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
13 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public | |
14 | * License for more details. | |
15 | * | |
16 | * Authors: | |
17 | * Paulo Cesar Pereira de Andrade | |
18 | */ | |
19 | ||
20 | #ifndef _jit_private_h | |
21 | #define _jit_private_h | |
22 | ||
23 | #if HAVE_CONFIG_H | |
24 | # include "config.h" | |
25 | #endif | |
26 | ||
27 | #include <assert.h> | |
28 | #include <limits.h> | |
29 | #include <stdio.h> | |
30 | ||
31 | #ifdef STDC_HEADERS | |
32 | # include <stddef.h> | |
33 | #else | |
34 | # if !defined(offsetof) | |
35 | # define offsetof(type, field) ((char *)&((type *)0)->field - (char *)0) | |
36 | # endif | |
37 | #endif | |
38 | ||
39 | #if defined(__GNUC__) | |
40 | # define maybe_unused __attribute__ ((unused)) | |
41 | # define unlikely(exprn) __builtin_expect(!!(exprn), 0) | |
42 | # define likely(exprn) __builtin_expect(!!(exprn), 1) | |
43 | # if (__GNUC__ >= 4) | |
44 | # define PUBLIC __attribute__ ((visibility("default"))) | |
45 | # define HIDDEN __attribute__ ((visibility("hidden"))) | |
46 | # else | |
47 | # define PUBLIC /**/ | |
48 | # define HIDDEN /**/ | |
49 | # endif | |
50 | #else | |
51 | # define maybe_unused /**/ | |
52 | # define unlikely(exprn) exprn | |
53 | # define likely(exprn) exprn | |
54 | # define PUBLIC /**/ | |
55 | # define HIDDEN /**/ | |
56 | #endif | |
57 | ||
58 | #define rc(value) jit_class_##value | |
59 | #define rn(reg) (jit_regno(_rvs[jit_regno(reg)].spec)) | |
60 | ||
61 | #if defined(__i386__) || defined(__x86_64__) | |
62 | # define JIT_SP _RSP | |
63 | # define JIT_RET _RAX | |
64 | # if __X32 | |
65 | # define JIT_FRET _ST0 | |
66 | typedef jit_uint32_t jit_regset_t; | |
67 | # else | |
68 | # if __CYGWIN__ || _WIN32 | |
69 | # define JIT_RA0 _RCX | |
70 | # else | |
71 | # define JIT_RA0 _RDI | |
72 | # endif | |
73 | # define JIT_FA0 _XMM0 | |
74 | # define JIT_FRET _XMM0 | |
75 | typedef jit_uint64_t jit_regset_t; | |
76 | # endif | |
77 | #elif defined(__mips__) | |
78 | # define JIT_RA0 _A0 | |
79 | # define JIT_FA0 _F12 | |
80 | # define JIT_SP _SP | |
81 | # define JIT_RET _V0 | |
82 | # define JIT_FRET _F0 | |
83 | typedef jit_uint64_t jit_regset_t; | |
84 | #elif defined(__arm__) | |
85 | # define JIT_RA0 _R0 | |
86 | # define JIT_FA0 _D0 | |
87 | # define JIT_SP _R13 | |
88 | # define JIT_RET _R0 | |
89 | # if defined(__ARM_PCS_VFP) | |
90 | # define JIT_FRET _D0 | |
91 | # else | |
92 | # define JIT_FRET _R0 | |
93 | # endif | |
94 | typedef jit_uint64_t jit_regset_t; | |
95 | #elif defined(__powerpc__) | |
96 | # define JIT_RA0 _R3 | |
97 | # define JIT_FA0 _F1 | |
98 | # define JIT_SP _R1 | |
99 | # define JIT_RET _R3 | |
100 | # define JIT_FRET _F1 | |
101 | typedef jit_uint64_t jit_regset_t; | |
102 | #elif defined(__sparc__) | |
103 | # define JIT_SP _SP | |
104 | # define JIT_RET _I0 | |
105 | # define JIT_FRET _F0 | |
106 | # if __WORDSIZE == 32 | |
107 | typedef jit_uint64_t jit_regset_t; | |
108 | # else | |
109 | typedef struct { | |
110 | jit_uint64_t rl; | |
111 | jit_uint64_t rh; | |
112 | } jit_regset_t; | |
113 | # endif | |
114 | #elif defined(__ia64__) | |
115 | # define JIT_SP _R12 | |
116 | # define JIT_RET _R8 | |
117 | # define JIT_FRET _F8 | |
118 | typedef struct { | |
119 | jit_uint64_t rl; | |
120 | jit_uint64_t rh; | |
121 | jit_uint64_t fl; | |
122 | jit_uint64_t fh; | |
123 | } jit_regset_t; | |
124 | #elif defined(__hppa__) | |
125 | # define JIT_SP _R30 | |
126 | # define JIT_RET _R28 | |
127 | # define JIT_FRET _F4 | |
128 | typedef jit_uint64_t jit_regset_t; | |
129 | #elif defined(__aarch64__) | |
130 | # define JIT_RA0 _R0 | |
131 | # define JIT_FA0 _V0 | |
132 | # define JIT_SP _SP | |
133 | # define JIT_RET _R0 | |
134 | # define JIT_FRET _V0 | |
135 | typedef jit_uint64_t jit_regset_t; | |
136 | #elif defined(__s390__) || defined(__s390x__) | |
137 | # define JIT_SP _R15 | |
138 | # define JIT_RET _R2 | |
139 | # define JIT_FRET _F0 | |
140 | typedef jit_uint32_t jit_regset_t; | |
141 | #elif defined(__alpha__) | |
142 | # define JIT_SP _SP | |
143 | # define JIT_RET _V0 | |
144 | # define JIT_FRET _F0 | |
145 | typedef jit_uint64_t jit_regset_t; | |
146 | #elif defined(__riscv) | |
147 | # define JIT_RA0 _A0 | |
148 | # define JIT_FA0 _FA0 | |
149 | # define JIT_SP _SP | |
150 | # define JIT_RET _A0 | |
151 | # define JIT_FRET _FA0 | |
152 | typedef jit_uint64_t jit_regset_t; | |
153 | #endif | |
154 | ||
155 | #define jit_data(u,v,w) _jit_data(_jit,u,v,w) | |
156 | extern jit_node_t *_jit_data(jit_state_t*, const void*, | |
157 | jit_word_t, jit_int32_t); | |
158 | ||
159 | #define jit_size(vector) (sizeof(vector) / sizeof((vector)[0])) | |
160 | ||
161 | #define jit_reg_free_p(regno) \ | |
162 | (!jit_regset_tstbit(&_jitc->reglive, regno) && \ | |
163 | !jit_regset_tstbit(&_jitc->regarg, regno) && \ | |
164 | !jit_regset_tstbit(&_jitc->regsav, regno)) | |
165 | ||
166 | #define jit_reg_free_if_spill_p(regno) \ | |
167 | (!jit_regset_tstbit(&_jitc->regarg, regno) && \ | |
168 | !jit_regset_tstbit(&_jitc->regsav, regno)) | |
169 | ||
170 | #define jit_inc_synth(code) \ | |
171 | do { \ | |
172 | (void)jit_new_node(jit_code_##code); \ | |
173 | jit_synth_inc(); \ | |
174 | } while (0) | |
175 | #define jit_inc_synth_w(code, u) \ | |
176 | do { \ | |
177 | (void)jit_new_node_w(jit_code_##code, u); \ | |
178 | jit_synth_inc(); \ | |
179 | } while (0) | |
180 | #define jit_inc_synth_f(code, u) \ | |
181 | do { \ | |
182 | (void)jit_new_node_f(jit_code_##code, u); \ | |
183 | jit_synth_inc(); \ | |
184 | } while (0) | |
185 | #define jit_inc_synth_d(code, u) \ | |
186 | do { \ | |
187 | (void)jit_new_node_d(jit_code_##code, u); \ | |
188 | jit_synth_inc(); \ | |
189 | } while (0) | |
190 | #define jit_inc_synth_ww(code, u, v) \ | |
191 | do { \ | |
192 | (void)jit_new_node_ww(jit_code_##code, u, v); \ | |
193 | jit_synth_inc(); \ | |
194 | } while (0) | |
195 | #define jit_inc_synth_wp(code, u, v) \ | |
196 | do { \ | |
197 | (void)jit_new_node_wp(jit_code_##code, u, v); \ | |
198 | jit_synth_inc(); \ | |
199 | } while (0) | |
200 | #define jit_inc_synth_fp(code, u, v) \ | |
201 | do { \ | |
202 | (void)jit_new_node_fp(jit_code_##code, u, v); \ | |
203 | jit_synth_inc(); \ | |
204 | } while (0) | |
205 | #define jit_inc_synth_dp(code, u, v) \ | |
206 | do { \ | |
207 | (void)jit_new_node_dp(jit_code_##code, u, v); \ | |
208 | jit_synth_inc(); \ | |
209 | } while (0) | |
210 | #define jit_dec_synth() jit_synth_dec() | |
211 | ||
212 | #define jit_link_prolog() \ | |
213 | do { \ | |
214 | _jitc->tail->link = _jitc->function->prolog->link; \ | |
215 | _jitc->function->prolog->link = _jitc->tail; \ | |
216 | } while (0) | |
217 | #define jit_link_prepare() \ | |
218 | do { \ | |
219 | _jitc->tail->link = _jitc->prepare->link; \ | |
220 | _jitc->prepare->link = _jitc->tail; \ | |
221 | } while (0) | |
222 | #define jit_link_reverse(where) \ | |
223 | do { \ | |
224 | jit_node_t *tmp, *tail = 0; \ | |
225 | while (where) { \ | |
226 | tmp = (where)->link; \ | |
227 | (where)->link = tail; \ | |
228 | tail = where; \ | |
229 | where = tmp; \ | |
230 | } \ | |
231 | where = tail; \ | |
232 | } while (0); | |
233 | ||
234 | /* | |
235 | * Private jit_class bitmasks | |
236 | */ | |
237 | #define jit_class_named 0x00400000 /* hit must be the named reg */ | |
238 | #define jit_class_nospill 0x00800000 /* hint to fail if need spill */ | |
239 | #define jit_class_sft 0x01000000 /* not a hardware register */ | |
240 | #define jit_class_rg8 0x04000000 /* x86 8 bits */ | |
241 | #define jit_class_xpr 0x80000000 /* float / vector */ | |
242 | /* Used on sparc64 where %f0-%f31 can be encode for single float | |
243 | * but %f32 to %f62 only as double precision */ | |
244 | #define jit_class_sng 0x10000000 /* Single precision float */ | |
245 | #define jit_class_dbl 0x20000000 /* Only double precision float */ | |
246 | #define jit_regno_patch 0x00008000 /* this is a register | |
247 | * returned by a "user" call | |
248 | * to jit_get_reg() */ | |
249 | ||
250 | #define jit_call_default 0 | |
251 | #define jit_call_varargs 1 | |
252 | ||
253 | #define jit_kind_register 1 | |
254 | #define jit_kind_code 2 | |
255 | #define jit_kind_word 3 | |
256 | #define jit_kind_float32 4 | |
257 | #define jit_kind_float64 5 | |
258 | ||
259 | #define jit_cc_a0_reg 0x00000001 /* arg0 is a register */ | |
260 | #define jit_cc_a0_chg 0x00000002 /* arg0 is modified */ | |
261 | #define jit_cc_a0_jmp 0x00000004 /* arg0 is a jump target */ | |
262 | #define jit_cc_a0_rlh 0x00000008 /* arg0 is a register pair */ | |
263 | #define jit_cc_a0_int 0x00000010 /* arg0 is immediate word */ | |
264 | #define jit_cc_a0_flt 0x00000020 /* arg0 is immediate float */ | |
265 | #define jit_cc_a0_dbl 0x00000040 /* arg0 is immediate double */ | |
266 | #define jit_cc_a0_arg 0x00000080 /* arg1 is an argument int id */ | |
40a44dcb PC |
267 | #define jit_cc_a0_cnd 0x00000100 /* arg1 is a conditinally set register */ |
268 | #define jit_cc_a1_reg 0x00000200 /* arg1 is a register */ | |
269 | #define jit_cc_a1_chg 0x00000400 /* arg1 is modified */ | |
4a71579b PC |
270 | #define jit_cc_a1_int 0x00001000 /* arg1 is immediate word */ |
271 | #define jit_cc_a1_flt 0x00002000 /* arg1 is immediate float */ | |
272 | #define jit_cc_a1_dbl 0x00004000 /* arg1 is immediate double */ | |
273 | #define jit_cc_a1_arg 0x00008000 /* arg1 is an argument node */ | |
274 | #define jit_cc_a2_reg 0x00010000 /* arg2 is a register */ | |
275 | #define jit_cc_a2_chg 0x00020000 /* arg2 is modified */ | |
276 | #define jit_cc_a2_int 0x00100000 /* arg2 is immediate word */ | |
277 | #define jit_cc_a2_flt 0x00200000 /* arg2 is immediate float */ | |
278 | #define jit_cc_a2_dbl 0x00400000 /* arg2 is immediate double */ | |
279 | ||
280 | #if __ia64__ || (__sparc__ && __WORDSIZE == 64) | |
281 | extern void | |
282 | jit_regset_com(jit_regset_t*, jit_regset_t*); | |
283 | ||
284 | extern void | |
285 | jit_regset_and(jit_regset_t*, jit_regset_t*, jit_regset_t*); | |
286 | ||
287 | extern void | |
288 | jit_regset_ior(jit_regset_t*, jit_regset_t*, jit_regset_t*); | |
289 | ||
290 | extern void | |
291 | jit_regset_xor(jit_regset_t*, jit_regset_t*, jit_regset_t*); | |
292 | ||
293 | extern void | |
294 | jit_regset_set(jit_regset_t*, jit_regset_t*); | |
295 | ||
296 | extern void | |
297 | jit_regset_set_mask(jit_regset_t*, jit_int32_t); | |
298 | ||
299 | extern jit_bool_t | |
300 | jit_regset_cmp_ui(jit_regset_t*, jit_word_t); | |
301 | ||
302 | extern void | |
303 | jit_regset_set_ui(jit_regset_t*, jit_word_t); | |
304 | ||
305 | extern jit_bool_t | |
306 | jit_regset_set_p(jit_regset_t*); | |
307 | ||
308 | extern void | |
309 | jit_regset_clrbit(jit_regset_t*, jit_int32_t); | |
310 | ||
311 | extern void | |
312 | jit_regset_setbit(jit_regset_t*, jit_int32_t); | |
313 | ||
314 | extern jit_bool_t | |
315 | jit_regset_tstbit(jit_regset_t*, jit_int32_t); | |
316 | # if __sparc__ && __WORDSIZE == 64 | |
317 | # define jit_regset_new(set) \ | |
318 | do { (set)->rl = (set)->rh = 0; } while (0) | |
319 | # define jit_regset_del(set) \ | |
320 | do { (set)->rl = (set)->rh = 0; } while (0) | |
321 | # else | |
322 | # define jit_regset_new(set) \ | |
323 | do { (set)->rl = (set)->rh = (set)->fl = (set)->fh = 0; } while (0) | |
324 | # define jit_regset_del(set) \ | |
325 | do { (set)->rl = (set)->rh = (set)->fl = (set)->fh = 0; } while (0) | |
326 | # endif | |
327 | #else | |
328 | # define jit_regset_com(u, v) (*(u) = ~*(v)) | |
329 | # define jit_regset_and(u, v, w) (*(u) = *(v) & *(w)) | |
330 | # define jit_regset_ior(u, v, w) (*(u) = *(v) | *(w)) | |
331 | # define jit_regset_xor(u, v, w) (*(u) = *(v) ^ *(w)) | |
332 | # define jit_regset_set(u, v) (*(u) = *(v)) | |
333 | # define jit_regset_set_mask(u, v) (*(u) = (1LL << (v)) - 1) | |
334 | # define jit_regset_cmp_ui(u, v) (*(u) != (v)) | |
335 | # define jit_regset_set_ui(u, v) (*(u) = (v)) | |
336 | # define jit_regset_set_p(set) (*set) | |
337 | # define jit_regset_clrbit(set, bit) (*(set) &= ~(1LL << (bit))) | |
338 | # define jit_regset_setbit(set, bit) (*(set) |= 1LL << (bit)) | |
339 | # define jit_regset_tstbit(set, bit) (*(set) & (1LL << (bit))) | |
340 | # define jit_regset_new(set) (*(set) = 0) | |
341 | # define jit_regset_del(set) (*(set) = 0) | |
342 | #endif | |
343 | extern unsigned long | |
344 | jit_regset_scan1(jit_regset_t*, jit_int32_t); | |
345 | ||
346 | #define jit_reglive_setup() \ | |
347 | do { \ | |
348 | jit_regset_set_ui(&_jitc->reglive, 0); \ | |
349 | jit_regset_set_ui(&_jitc->regmask, 0); \ | |
350 | } while (0) | |
351 | ||
352 | /* | |
353 | * Types | |
354 | */ | |
355 | typedef union jit_data jit_data_t; | |
356 | typedef struct jit_note jit_note_t; | |
357 | typedef struct jit_line jit_line_t; | |
358 | typedef struct jit_block jit_block_t; | |
359 | typedef struct jit_value jit_value_t; | |
360 | typedef struct jit_compiler jit_compiler_t; | |
361 | typedef struct jit_function jit_function_t; | |
362 | typedef struct jit_register jit_register_t; | |
363 | #if __arm__ | |
364 | # if DISASSEMBLER | |
365 | typedef struct jit_data_info jit_data_info_t; | |
366 | # endif | |
367 | #endif | |
368 | ||
369 | union jit_data { | |
370 | struct { | |
371 | #if __BYTE_ORDER == __LITTLE_ENDIAN | |
372 | jit_int32_t l; | |
373 | jit_int32_t h; | |
374 | #else | |
375 | jit_int32_t h; | |
376 | jit_int32_t l; | |
377 | #endif | |
378 | } q; | |
379 | jit_word_t w; | |
380 | jit_float32_t f; | |
381 | jit_float64_t d; | |
382 | jit_pointer_t p; | |
383 | jit_node_t *n; | |
384 | }; | |
385 | ||
386 | struct jit_note { | |
387 | jit_uint8_t *code; | |
388 | char *name; | |
389 | jit_line_t *lines; | |
390 | jit_word_t length; | |
391 | jit_word_t size; /* of code */ | |
392 | }; | |
393 | ||
394 | struct jit_line { | |
395 | char *file; | |
396 | jit_int32_t *linenos; | |
397 | jit_int32_t *offsets; | |
398 | jit_word_t length; | |
399 | }; | |
400 | ||
401 | struct jit_node { | |
402 | jit_node_t *next; | |
403 | jit_code_t code; | |
404 | jit_uint16_t flag; | |
405 | jit_uint16_t offset; /* Used if DEVEL_DISASSEMBLER */ | |
406 | jit_data_t u; | |
407 | jit_data_t v; | |
408 | jit_data_t w; | |
409 | jit_node_t *link; | |
410 | }; | |
411 | ||
412 | struct jit_block { | |
413 | jit_node_t *label; | |
414 | jit_regset_t reglive; | |
415 | jit_regset_t regmask; | |
416 | }; | |
417 | ||
418 | struct jit_value { | |
419 | jit_int32_t kind; | |
420 | jit_code_t code; | |
421 | jit_data_t base; | |
422 | jit_data_t disp; | |
423 | }; | |
424 | ||
425 | typedef struct { | |
426 | #if __arm__ | |
427 | jit_word_t kind; | |
428 | #endif | |
429 | jit_word_t inst; | |
430 | jit_node_t *node; | |
431 | } jit_patch_t; | |
432 | ||
433 | #if __arm__ && DISASSEMBLER | |
434 | struct jit_data_info { | |
435 | jit_uword_t code; /* pointer in code buffer */ | |
436 | jit_word_t length; /* length of constant vector */ | |
437 | }; | |
438 | #endif | |
439 | ||
440 | struct jit_function { | |
441 | struct { | |
442 | jit_int32_t argi; | |
443 | jit_int32_t argf; | |
444 | jit_int32_t size; | |
445 | jit_int32_t aoff; | |
446 | jit_int32_t alen; | |
447 | jit_int32_t call; | |
448 | jit_int32_t argn; /* for debug output */ | |
449 | } self; | |
450 | struct { | |
451 | jit_int32_t argi; | |
452 | jit_int32_t argf; | |
453 | jit_int32_t size; | |
454 | jit_int32_t call; | |
455 | } call; | |
456 | jit_node_t *prolog; | |
457 | jit_node_t *epilog; | |
458 | jit_int32_t *regoff; | |
459 | jit_regset_t regset; | |
460 | jit_int32_t stack; | |
461 | ||
462 | /* Helper for common jit generation pattern, used in GNU Smalltalk | |
463 | * and possibly others, where a static frame layout is required or | |
464 | * assumed. */ | |
465 | jit_int32_t frame; | |
466 | jit_uint32_t define_frame : 1; | |
467 | jit_uint32_t assume_frame : 1; | |
468 | ||
469 | /* alloca offset offset */ | |
470 | jit_int32_t aoffoff; | |
471 | /* uses allocar flag */ | |
472 | jit_uint32_t allocar : 1; | |
473 | ||
474 | /* varargs state offsets */ | |
475 | jit_int32_t vaoff; /* offset of jit_va_list */ | |
476 | jit_int32_t vagp; /* first gp va argument */ | |
477 | jit_int32_t vafp; /* first fp va argument */ | |
478 | }; | |
479 | ||
480 | /* data used only during jit generation */ | |
481 | struct jit_compiler { | |
482 | #if __ia64__ | |
483 | struct { | |
484 | jit_uint64_t i : 41; | |
485 | jit_uint64_t t : 4; | |
486 | } inst[3]; | |
487 | jit_regset_t regs; /* changed regs since last stop */ | |
488 | jit_int32_t pred; /* changed preds last stop */ | |
489 | jit_int32_t ioff; /* offset in inst vector */ | |
490 | jit_int32_t rout; /* first output register */ | |
491 | jit_int32_t breg; /* base register for prolog/epilog */ | |
492 | #endif | |
493 | #if __mips__ || __ia64__ || __alpha__ || \ | |
494 | (__sparc__ && __WORDSIZE == 64) || __riscv | |
495 | jit_int32_t carry; | |
496 | #define jit_carry _jitc->carry | |
497 | #endif | |
498 | jit_node_t *head; | |
499 | jit_node_t *tail; | |
500 | jit_node_t *prepare; /* inside prepare/finish* block */ | |
501 | jit_uint32_t realize : 1; /* jit_realize() called? */ | |
502 | jit_uint32_t dataset : 1; /* jit_dataset() called? */ | |
503 | jit_uint32_t done : 1; /* emit state finished */ | |
504 | jit_uint32_t emit : 1; /* emit state entered */ | |
505 | jit_uint32_t again : 1; /* start over emiting function */ | |
506 | jit_uint32_t synth : 8; /* emiting synthesized instructions */ | |
507 | #if DEBUG | |
508 | jit_uint32_t getreg : 1; | |
509 | #endif | |
510 | jit_uint32_t no_data : 1; | |
511 | jit_uint32_t no_note : 1; | |
512 | jit_int32_t reglen; /* number of registers */ | |
513 | jit_regset_t regarg; /* cannot allocate */ | |
514 | jit_regset_t regsav; /* automatic spill only once */ | |
515 | jit_regset_t reglive; /* known live registers at some point */ | |
516 | jit_regset_t regmask; /* register mask to update reglive */ | |
517 | struct { | |
518 | jit_uint8_t *end; | |
519 | } code; | |
520 | struct { | |
521 | jit_uint8_t *ptr; | |
522 | jit_node_t **table; /* very simple hash table */ | |
523 | jit_word_t size; /* number of vectors in table */ | |
524 | jit_word_t count; /* number of hash table entries */ | |
525 | jit_word_t offset; /* offset in bytes in ptr */ | |
526 | } data; | |
527 | jit_node_t **spill; | |
528 | jit_int32_t *gen; /* ssa like "register version" */ | |
529 | jit_value_t *values; /* temporary jit_value_t vector */ | |
530 | struct { | |
531 | jit_block_t *ptr; | |
532 | jit_word_t offset; | |
533 | jit_word_t length; | |
534 | } blocks; /* basic blocks */ | |
535 | struct { | |
536 | jit_patch_t *ptr; | |
537 | jit_word_t offset; | |
538 | jit_word_t length; | |
539 | } patches; /* forward patch information */ | |
540 | jit_function_t *function; /* current function */ | |
541 | struct { | |
542 | jit_function_t *ptr; | |
543 | jit_word_t offset; | |
544 | jit_word_t length; | |
545 | } functions; /* prolog/epilogue offsets in code */ | |
546 | struct { | |
547 | jit_node_t **ptr; | |
548 | jit_word_t offset; | |
549 | jit_word_t length; | |
550 | } pool; | |
551 | jit_node_t *list; | |
552 | struct { | |
553 | jit_node_t *head; /* first note node */ | |
554 | jit_node_t *tail; /* linked list insertion */ | |
555 | /* fields to store temporary state information */ | |
556 | jit_word_t size; | |
557 | jit_node_t *name; | |
558 | jit_node_t *note; | |
559 | jit_uint8_t *base; | |
560 | } note; | |
561 | #if __arm__ | |
562 | /* prevent using thumb instructions that set flags? */ | |
563 | jit_uint32_t no_set_flags : 1; | |
564 | # if DISASSEMBLER | |
565 | struct { | |
566 | jit_data_info_t *ptr; | |
567 | jit_word_t offset; | |
568 | jit_word_t length; | |
569 | } data_info; /* constant pools information */ | |
570 | # endif | |
571 | /* Note that this field is somewhat hackish, but required by most | |
572 | * ways to implement jit, unless implementing a pure one function | |
573 | * per jit, as most times it needs to start the jit buffer with a | |
574 | * jump where the "main" prolog starts, and because the initial | |
575 | * code is in "arm mode", need to make an "arm mode" patch on that | |
576 | * jump. A good example is the test suite assembler, where most | |
577 | * test cases start with a "jmpi main" call. */ | |
578 | jit_uword_t thumb; | |
579 | struct { | |
580 | jit_uint8_t *data; /* pointer to code */ | |
581 | jit_word_t size; /* size data */ | |
582 | jit_word_t offset; /* pending patches */ | |
583 | jit_word_t length; /* number of pending constants */ | |
584 | jit_int32_t values[1024]; /* pending constants */ | |
585 | jit_word_t patches[2048]; | |
586 | } consts; | |
587 | #elif (__powerpc__ && _CALL_AIXDESC) || __ia64__ | |
588 | /* Keep track of prolog addresses, just for the sake of making | |
589 | * jit that starts with a jump to a "main" label work like other | |
590 | * backends. */ | |
591 | struct { | |
592 | jit_word_t *ptr; | |
593 | jit_word_t offset; | |
594 | jit_word_t length; | |
595 | } prolog; | |
596 | jit_bool_t jump; | |
597 | #endif | |
598 | #if GET_JIT_SIZE | |
599 | /* Temporary storage to calculate instructions length */ | |
600 | jit_word_t size; | |
601 | /* Global flag for code buffer heuristic size computation */ | |
602 | jit_word_t mult; | |
603 | /* Pointer to code to prevent miscalculation if reallocating buffer */ | |
604 | jit_uint8_t *cptr; | |
605 | #endif | |
606 | }; | |
607 | ||
608 | #define _jitc _jit->comp | |
609 | struct jit_state { | |
610 | union { | |
611 | jit_uint8_t *uc; | |
612 | jit_uint16_t *us; | |
613 | jit_uint32_t *ui; | |
614 | jit_uint64_t *ul; | |
615 | jit_word_t w; | |
616 | } pc; | |
617 | struct { | |
618 | jit_uint8_t *ptr; | |
619 | jit_word_t length; | |
620 | } code; | |
621 | struct { | |
622 | jit_uint8_t *ptr; | |
623 | jit_word_t length; | |
624 | } data; | |
625 | struct { | |
626 | jit_note_t *ptr; | |
627 | jit_word_t length; | |
628 | } note; | |
629 | jit_compiler_t *comp; | |
630 | /* Flags to know if user did set the code and data buffers */ | |
631 | jit_uint32_t user_code : 1; | |
632 | jit_uint32_t user_data : 1; | |
633 | }; | |
634 | ||
635 | struct jit_register { | |
636 | jit_reg_t spec; | |
637 | char *name; | |
638 | }; | |
639 | ||
640 | /* | |
641 | * Prototypes | |
642 | */ | |
643 | extern void jit_get_cpu(void); | |
644 | ||
645 | #define jit_init() _jit_init(_jit) | |
646 | extern void _jit_init(jit_state_t*); | |
647 | ||
648 | #define jit_synth_inc() _jit_synth_inc(_jit) | |
649 | extern void _jit_synth_inc(jit_state_t*); | |
650 | ||
651 | #define jit_new_node_no_link(u) _jit_new_node_no_link(_jit, u) | |
652 | extern jit_node_t *_jit_new_node_no_link(jit_state_t*, jit_code_t); | |
653 | ||
654 | #define jit_link_node(u) _jit_link_node(_jit, u) | |
655 | extern void _jit_link_node(jit_state_t*, jit_node_t*); | |
656 | ||
657 | #define jit_link_label(l) _jit_link_label(_jit,l) | |
658 | extern void | |
659 | _jit_link_label(jit_state_t*,jit_node_t*); | |
660 | ||
661 | #define jit_synth_dec() _jit_synth_dec(_jit) | |
662 | extern void _jit_synth_dec(jit_state_t*); | |
663 | ||
664 | #define jit_reglive(node) _jit_reglive(_jit, node) | |
665 | extern void | |
666 | _jit_reglive(jit_state_t*, jit_node_t*); | |
667 | ||
668 | #define jit_regarg_set(n,v) _jit_regarg_set(_jit,n,v) | |
669 | extern void | |
670 | _jit_regarg_set(jit_state_t*, jit_node_t*, jit_int32_t); | |
671 | ||
672 | #define jit_regarg_clr(n,v) _jit_regarg_clr(_jit,n,v) | |
673 | extern void | |
674 | _jit_regarg_clr(jit_state_t*, jit_node_t*, jit_int32_t); | |
675 | ||
4a71579b PC |
676 | #define jit_save(reg) _jit_save(_jit, reg) |
677 | extern void | |
678 | _jit_save(jit_state_t*, jit_int32_t); | |
679 | ||
680 | #define jit_load(reg) _jit_load(_jit, reg) | |
681 | extern void | |
682 | _jit_load(jit_state_t*, jit_int32_t); | |
683 | ||
684 | #define jit_trampoline(u,v) _jit_trampoline(_jit, u, v) | |
685 | extern void _jit_trampoline(jit_state_t*, jit_int32_t, jit_bool_t); | |
686 | ||
687 | #define jit_optimize() _jit_optimize(_jit) | |
688 | extern void | |
689 | _jit_optimize(jit_state_t*); | |
690 | ||
691 | #define jit_classify(code) _jit_classify(_jit, code) | |
692 | extern jit_int32_t | |
693 | _jit_classify(jit_state_t*, jit_code_t); | |
694 | ||
695 | #define jit_regarg_p(n, r) _jit_regarg_p(_jit, n, r) | |
696 | extern jit_bool_t | |
697 | _jit_regarg_p(jit_state_t*, jit_node_t*, jit_int32_t); | |
698 | ||
699 | #define emit_code() _emit_code(_jit) | |
700 | extern jit_pointer_t | |
701 | _emit_code(jit_state_t*); | |
702 | ||
703 | extern void | |
704 | jit_flush(void *fptr, void *tptr); | |
705 | ||
706 | #define emit_ldxi(r0, r1, i0) _emit_ldxi(_jit, r0, r1, i0) | |
707 | extern void | |
708 | _emit_ldxi(jit_state_t*, jit_int32_t, jit_int32_t, jit_word_t); | |
709 | ||
710 | #define emit_stxi(i0, r0, r1) _emit_stxi(_jit, i0, r0, r1) | |
711 | extern void | |
712 | _emit_stxi(jit_state_t*, jit_word_t, jit_int32_t, jit_int32_t); | |
713 | ||
714 | #define emit_ldxi_d(r0, r1, i0) _emit_ldxi_d(_jit, r0, r1, i0) | |
715 | extern void | |
716 | _emit_ldxi_d(jit_state_t*, jit_int32_t, jit_int32_t, jit_word_t); | |
717 | ||
718 | #define emit_stxi_d(i0, r0, r1) _emit_stxi_d(_jit, i0, r0, r1) | |
719 | extern void | |
720 | _emit_stxi_d(jit_state_t*, jit_word_t, jit_int32_t, jit_int32_t); | |
721 | ||
40a44dcb | 722 | extern void jit_init_print(void); |
4a71579b PC |
723 | extern void jit_init_debug(const char*); |
724 | extern void jit_finish_debug(void); | |
725 | ||
726 | extern void jit_init_note(void); | |
727 | extern void jit_finish_note(void); | |
728 | #define jit_set_note(n,u,v,w) _jit_set_note(_jit, n, u, v, w) | |
729 | extern void _jit_set_note(jit_state_t*, jit_note_t*, char*, int, jit_int32_t); | |
730 | #define jit_annotate() _jit_annotate(_jit) | |
731 | extern void _jit_annotate(jit_state_t*); | |
732 | ||
733 | #define jit_print_node(u) _jit_print_node(_jit,u) | |
734 | extern void _jit_print_node(jit_state_t*,jit_node_t*); | |
735 | ||
736 | extern jit_pointer_t jit_memcpy(jit_pointer_t,const void*,jit_word_t); | |
737 | extern jit_pointer_t jit_memmove(jit_pointer_t,const void*,jit_word_t); | |
738 | extern void jit_alloc(jit_pointer_t*, jit_word_t); | |
739 | extern void jit_realloc(jit_pointer_t*, jit_word_t, jit_word_t); | |
740 | void jit_free(jit_pointer_t*); | |
741 | ||
742 | extern void jit_init_size(void); | |
743 | extern void jit_finish_size(void); | |
744 | ||
745 | #if GET_JIT_SIZE | |
746 | # define jit_size_prepare() _jit_size_prepare(_jit) | |
747 | extern void | |
748 | _jit_size_prepare(jit_state_t*); | |
749 | ||
750 | # define jit_size_collect(node) _jit_size_collect(_jit, node) | |
751 | extern void | |
752 | _jit_size_collect(jit_state_t*, jit_node_t*); | |
753 | #else | |
754 | # define jit_get_size() _jit_get_size(_jit) | |
755 | extern jit_word_t | |
756 | _jit_get_size(jit_state_t*); | |
757 | #endif | |
758 | ||
759 | extern jit_word_t | |
760 | jit_get_max_instr(void); | |
761 | ||
762 | /* | |
763 | * Externs | |
764 | */ | |
765 | extern jit_register_t _rvs[]; | |
766 | ||
767 | #endif /* _jit_private_h */ |