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4a71579b | 1 | /* |
79bfeef6 | 2 | * Copyright (C) 2012-2023 Free Software Foundation, Inc. |
4a71579b PC |
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 | ||
79bfeef6 PC |
58 | #if PACKED_STACK || STRONG_TYPE_CHECKING |
59 | # define assert_arg_type(code, expect) \ | |
60 | do assert((code) == (expect)); while (0) | |
61 | # define assert_putarg_type(code, expect) \ | |
62 | do \ | |
63 | assert((((code) - jit_code_putargr_c) >> 2) == \ | |
64 | ((expect) - jit_code_arg_c)); \ | |
65 | while (0) | |
66 | #else | |
67 | # define assert_arg_type(code, expect) \ | |
68 | do assert((int)(code) == (int)(expect) || \ | |
69 | (code) == jit_code_arg); while (0) | |
70 | # define assert_putarg_type(code, expect) \ | |
71 | do \ | |
72 | assert(((((code) - jit_code_putargr_c) >> 2) == \ | |
73 | ((expect) - jit_code_arg_c)) || \ | |
74 | ((code) == jit_code_arg)); \ | |
75 | while (0) | |
76 | #endif | |
77 | ||
4a71579b PC |
78 | #define rc(value) jit_class_##value |
79 | #define rn(reg) (jit_regno(_rvs[jit_regno(reg)].spec)) | |
80 | ||
81 | #if defined(__i386__) || defined(__x86_64__) | |
82 | # define JIT_SP _RSP | |
83 | # define JIT_RET _RAX | |
84 | # if __X32 | |
85 | # define JIT_FRET _ST0 | |
86 | typedef jit_uint32_t jit_regset_t; | |
87 | # else | |
88 | # if __CYGWIN__ || _WIN32 | |
89 | # define JIT_RA0 _RCX | |
90 | # else | |
91 | # define JIT_RA0 _RDI | |
92 | # endif | |
93 | # define JIT_FA0 _XMM0 | |
94 | # define JIT_FRET _XMM0 | |
95 | typedef jit_uint64_t jit_regset_t; | |
96 | # endif | |
97 | #elif defined(__mips__) | |
98 | # define JIT_RA0 _A0 | |
99 | # define JIT_FA0 _F12 | |
100 | # define JIT_SP _SP | |
101 | # define JIT_RET _V0 | |
102 | # define JIT_FRET _F0 | |
103 | typedef jit_uint64_t jit_regset_t; | |
104 | #elif defined(__arm__) | |
105 | # define JIT_RA0 _R0 | |
106 | # define JIT_FA0 _D0 | |
107 | # define JIT_SP _R13 | |
108 | # define JIT_RET _R0 | |
109 | # if defined(__ARM_PCS_VFP) | |
110 | # define JIT_FRET _D0 | |
111 | # else | |
112 | # define JIT_FRET _R0 | |
113 | # endif | |
114 | typedef jit_uint64_t jit_regset_t; | |
115 | #elif defined(__powerpc__) | |
116 | # define JIT_RA0 _R3 | |
117 | # define JIT_FA0 _F1 | |
118 | # define JIT_SP _R1 | |
119 | # define JIT_RET _R3 | |
120 | # define JIT_FRET _F1 | |
121 | typedef jit_uint64_t jit_regset_t; | |
122 | #elif defined(__sparc__) | |
123 | # define JIT_SP _SP | |
124 | # define JIT_RET _I0 | |
125 | # define JIT_FRET _F0 | |
126 | # if __WORDSIZE == 32 | |
127 | typedef jit_uint64_t jit_regset_t; | |
128 | # else | |
129 | typedef struct { | |
130 | jit_uint64_t rl; | |
131 | jit_uint64_t rh; | |
132 | } jit_regset_t; | |
133 | # endif | |
134 | #elif defined(__ia64__) | |
135 | # define JIT_SP _R12 | |
136 | # define JIT_RET _R8 | |
137 | # define JIT_FRET _F8 | |
138 | typedef struct { | |
139 | jit_uint64_t rl; | |
140 | jit_uint64_t rh; | |
141 | jit_uint64_t fl; | |
142 | jit_uint64_t fh; | |
143 | } jit_regset_t; | |
144 | #elif defined(__hppa__) | |
145 | # define JIT_SP _R30 | |
146 | # define JIT_RET _R28 | |
147 | # define JIT_FRET _F4 | |
148 | typedef jit_uint64_t jit_regset_t; | |
149 | #elif defined(__aarch64__) | |
150 | # define JIT_RA0 _R0 | |
151 | # define JIT_FA0 _V0 | |
152 | # define JIT_SP _SP | |
153 | # define JIT_RET _R0 | |
154 | # define JIT_FRET _V0 | |
155 | typedef jit_uint64_t jit_regset_t; | |
156 | #elif defined(__s390__) || defined(__s390x__) | |
157 | # define JIT_SP _R15 | |
158 | # define JIT_RET _R2 | |
159 | # define JIT_FRET _F0 | |
160 | typedef jit_uint32_t jit_regset_t; | |
161 | #elif defined(__alpha__) | |
162 | # define JIT_SP _SP | |
163 | # define JIT_RET _V0 | |
164 | # define JIT_FRET _F0 | |
165 | typedef jit_uint64_t jit_regset_t; | |
166 | #elif defined(__riscv) | |
167 | # define JIT_RA0 _A0 | |
168 | # define JIT_FA0 _FA0 | |
169 | # define JIT_SP _SP | |
170 | # define JIT_RET _A0 | |
171 | # define JIT_FRET _FA0 | |
172 | typedef jit_uint64_t jit_regset_t; | |
24d91c0d PC |
173 | #elif defined(__loongarch__) |
174 | # define JIT_RA0 _A0 | |
175 | # define JIT_FA0 _FA0 | |
176 | # define JIT_SP _SP | |
177 | # define JIT_RET _A0 | |
178 | # define JIT_FRET _FA0 | |
179 | typedef jit_uint64_t jit_regset_t; | |
4a71579b PC |
180 | #endif |
181 | ||
182 | #define jit_data(u,v,w) _jit_data(_jit,u,v,w) | |
183 | extern jit_node_t *_jit_data(jit_state_t*, const void*, | |
184 | jit_word_t, jit_int32_t); | |
185 | ||
186 | #define jit_size(vector) (sizeof(vector) / sizeof((vector)[0])) | |
187 | ||
188 | #define jit_reg_free_p(regno) \ | |
189 | (!jit_regset_tstbit(&_jitc->reglive, regno) && \ | |
190 | !jit_regset_tstbit(&_jitc->regarg, regno) && \ | |
191 | !jit_regset_tstbit(&_jitc->regsav, regno)) | |
192 | ||
193 | #define jit_reg_free_if_spill_p(regno) \ | |
194 | (!jit_regset_tstbit(&_jitc->regarg, regno) && \ | |
195 | !jit_regset_tstbit(&_jitc->regsav, regno)) | |
196 | ||
79bfeef6 | 197 | #define jit_code_inc_synth(code) \ |
4a71579b | 198 | do { \ |
79bfeef6 | 199 | (void)jit_new_node(code); \ |
4a71579b PC |
200 | jit_synth_inc(); \ |
201 | } while (0) | |
79bfeef6 PC |
202 | #define jit_inc_synth(name) \ |
203 | jit_code_inc_synth(jit_code_##name) | |
204 | #define jit_code_inc_synth_w(code, u) \ | |
4a71579b | 205 | do { \ |
79bfeef6 | 206 | (void)jit_new_node_w(code, u); \ |
4a71579b PC |
207 | jit_synth_inc(); \ |
208 | } while (0) | |
79bfeef6 PC |
209 | #define jit_inc_synth_w(name, u) \ |
210 | jit_code_inc_synth_w(jit_code_##name, u) | |
211 | #define jit_code_inc_synth_f(code, u) \ | |
4a71579b | 212 | do { \ |
79bfeef6 | 213 | (void)jit_new_node_f(code, u); \ |
4a71579b PC |
214 | jit_synth_inc(); \ |
215 | } while (0) | |
79bfeef6 PC |
216 | #define jit_inc_synth_f(name, u) \ |
217 | jit_code_inc_synth_f(jit_code_##name, u) | |
218 | #define jit_code_inc_synth_d(code, u) \ | |
4a71579b | 219 | do { \ |
79bfeef6 | 220 | (void)jit_new_node_d(code, u); \ |
4a71579b PC |
221 | jit_synth_inc(); \ |
222 | } while (0) | |
79bfeef6 PC |
223 | #define jit_inc_synth_d(name, u) \ |
224 | jit_code_inc_synth_d(jit_code_##name, u) | |
225 | #define jit_code_inc_synth_ww(code, u, v) \ | |
4a71579b | 226 | do { \ |
79bfeef6 | 227 | (void)jit_new_node_ww(code, u, v); \ |
4a71579b PC |
228 | jit_synth_inc(); \ |
229 | } while (0) | |
79bfeef6 PC |
230 | #define jit_inc_synth_ww(name, u, v) \ |
231 | jit_code_inc_synth_ww(jit_code_##name, u, v) | |
232 | #define jit_code_inc_synth_wp(code, u, v) \ | |
4a71579b | 233 | do { \ |
79bfeef6 | 234 | (void)jit_new_node_wp(code, u, v); \ |
4a71579b PC |
235 | jit_synth_inc(); \ |
236 | } while (0) | |
79bfeef6 PC |
237 | #define jit_inc_synth_wp(name, u, v) \ |
238 | jit_code_inc_synth_wp(jit_code_##name, u, v) | |
239 | #define jit_code_inc_synth_fp(code, u, v) \ | |
4a71579b | 240 | do { \ |
79bfeef6 | 241 | (void)jit_new_node_fp(code, u, v); \ |
4a71579b PC |
242 | jit_synth_inc(); \ |
243 | } while (0) | |
79bfeef6 PC |
244 | #define jit_inc_synth_fp(name, u, v) \ |
245 | jit_code_inc_synth_fp(jit_code_##name, u, v) | |
246 | #define jit_code_inc_synth_dp(code, u, v) \ | |
4a71579b | 247 | do { \ |
79bfeef6 | 248 | (void)jit_new_node_dp(code, u, v); \ |
4a71579b PC |
249 | jit_synth_inc(); \ |
250 | } while (0) | |
79bfeef6 PC |
251 | #define jit_inc_synth_dp(name, u, v) \ |
252 | jit_code_inc_synth_dp(jit_code_##name, u, v) | |
ba86ff93 PC |
253 | #define jit_inc_synth_wf(name, u, v) \ |
254 | jit_code_inc_synth_wf(jit_code_##name, u, v) | |
255 | #define jit_code_inc_synth_wf(code, u, v) \ | |
256 | do { \ | |
257 | (void)jit_new_node_wf(code, u, v); \ | |
258 | jit_synth_inc(); \ | |
259 | } while (0) | |
260 | #define jit_inc_synth_wqf(name, u, v, w, x) \ | |
261 | do { \ | |
262 | (void)jit_new_node_wqf(jit_code_##name, u, v, w, x); \ | |
263 | jit_synth_inc(); \ | |
264 | } while (0) | |
265 | #define jit_inc_synth_wd(name, u, v) \ | |
266 | jit_code_inc_synth_wd(jit_code_##name, u, v) | |
267 | #define jit_inc_synth_wqd(name, u, v, w, x) \ | |
268 | do { \ | |
269 | (void)jit_new_node_wqd(jit_code_##name, u, v, w, x); \ | |
270 | jit_synth_inc(); \ | |
271 | } while (0) | |
272 | #define jit_code_inc_synth_wd(code, u, v) \ | |
273 | do { \ | |
274 | (void)jit_new_node_wd(code, u, v); \ | |
275 | jit_synth_inc(); \ | |
276 | } while (0) | |
4a71579b PC |
277 | #define jit_dec_synth() jit_synth_dec() |
278 | ||
79bfeef6 PC |
279 | #define jit_link_alist(node) \ |
280 | do { \ | |
281 | node->link = _jitc->function->alist; \ | |
282 | _jitc->function->alist = node; \ | |
283 | } while (0) | |
284 | #define jit_check_frame() \ | |
285 | do { \ | |
286 | if (!_jitc->function->need_frame) { \ | |
287 | _jitc->again = 1; \ | |
288 | _jitc->function->need_frame = 1; \ | |
289 | } \ | |
290 | } while (0) | |
291 | #define jit_diffsize() (stack_framesize - _jitc->framesize) | |
292 | #define jit_framesize() (stack_framesize - jit_diffsize()) | |
293 | #define jit_selfsize() (_jitc->function->self.size - jit_diffsize()) | |
294 | ||
4a71579b PC |
295 | #define jit_link_prolog() \ |
296 | do { \ | |
297 | _jitc->tail->link = _jitc->function->prolog->link; \ | |
298 | _jitc->function->prolog->link = _jitc->tail; \ | |
299 | } while (0) | |
300 | #define jit_link_prepare() \ | |
301 | do { \ | |
302 | _jitc->tail->link = _jitc->prepare->link; \ | |
303 | _jitc->prepare->link = _jitc->tail; \ | |
304 | } while (0) | |
305 | #define jit_link_reverse(where) \ | |
306 | do { \ | |
307 | jit_node_t *tmp, *tail = 0; \ | |
308 | while (where) { \ | |
309 | tmp = (where)->link; \ | |
310 | (where)->link = tail; \ | |
311 | tail = where; \ | |
312 | where = tmp; \ | |
313 | } \ | |
314 | where = tail; \ | |
315 | } while (0); | |
316 | ||
317 | /* | |
318 | * Private jit_class bitmasks | |
319 | */ | |
320 | #define jit_class_named 0x00400000 /* hit must be the named reg */ | |
321 | #define jit_class_nospill 0x00800000 /* hint to fail if need spill */ | |
322 | #define jit_class_sft 0x01000000 /* not a hardware register */ | |
323 | #define jit_class_rg8 0x04000000 /* x86 8 bits */ | |
324 | #define jit_class_xpr 0x80000000 /* float / vector */ | |
325 | /* Used on sparc64 where %f0-%f31 can be encode for single float | |
326 | * but %f32 to %f62 only as double precision */ | |
79bfeef6 PC |
327 | #define jit_class_sng 0x00010000 /* Single precision float */ |
328 | #define jit_class_dbl 0x00020000 /* Only double precision float */ | |
4a71579b PC |
329 | #define jit_regno_patch 0x00008000 /* this is a register |
330 | * returned by a "user" call | |
331 | * to jit_get_reg() */ | |
332 | ||
333 | #define jit_call_default 0 | |
334 | #define jit_call_varargs 1 | |
335 | ||
336 | #define jit_kind_register 1 | |
337 | #define jit_kind_code 2 | |
338 | #define jit_kind_word 3 | |
339 | #define jit_kind_float32 4 | |
340 | #define jit_kind_float64 5 | |
341 | ||
342 | #define jit_cc_a0_reg 0x00000001 /* arg0 is a register */ | |
343 | #define jit_cc_a0_chg 0x00000002 /* arg0 is modified */ | |
344 | #define jit_cc_a0_jmp 0x00000004 /* arg0 is a jump target */ | |
345 | #define jit_cc_a0_rlh 0x00000008 /* arg0 is a register pair */ | |
346 | #define jit_cc_a0_int 0x00000010 /* arg0 is immediate word */ | |
347 | #define jit_cc_a0_flt 0x00000020 /* arg0 is immediate float */ | |
348 | #define jit_cc_a0_dbl 0x00000040 /* arg0 is immediate double */ | |
349 | #define jit_cc_a0_arg 0x00000080 /* arg1 is an argument int id */ | |
40a44dcb PC |
350 | #define jit_cc_a0_cnd 0x00000100 /* arg1 is a conditinally set register */ |
351 | #define jit_cc_a1_reg 0x00000200 /* arg1 is a register */ | |
352 | #define jit_cc_a1_chg 0x00000400 /* arg1 is modified */ | |
ba86ff93 PC |
353 | #define jit_cc_a1_int 0x00000800 /* arg1 is immediate word */ |
354 | #define jit_cc_a1_flt 0x00001000 /* arg1 is immediate float */ | |
355 | #define jit_cc_a1_dbl 0x00002000 /* arg1 is immediate double */ | |
356 | #define jit_cc_a1_arg 0x00004000 /* arg1 is an argument node */ | |
357 | #define jit_cc_a1_rlh 0x00008000 /* arg1 is a register pair */ | |
4a71579b PC |
358 | #define jit_cc_a2_reg 0x00010000 /* arg2 is a register */ |
359 | #define jit_cc_a2_chg 0x00020000 /* arg2 is modified */ | |
360 | #define jit_cc_a2_int 0x00100000 /* arg2 is immediate word */ | |
361 | #define jit_cc_a2_flt 0x00200000 /* arg2 is immediate float */ | |
362 | #define jit_cc_a2_dbl 0x00400000 /* arg2 is immediate double */ | |
ba3814c1 | 363 | #define jit_cc_a2_rlh 0x00800000 /* arg2 is a register pair */ |
4a71579b PC |
364 | |
365 | #if __ia64__ || (__sparc__ && __WORDSIZE == 64) | |
366 | extern void | |
367 | jit_regset_com(jit_regset_t*, jit_regset_t*); | |
368 | ||
369 | extern void | |
370 | jit_regset_and(jit_regset_t*, jit_regset_t*, jit_regset_t*); | |
371 | ||
372 | extern void | |
373 | jit_regset_ior(jit_regset_t*, jit_regset_t*, jit_regset_t*); | |
374 | ||
375 | extern void | |
376 | jit_regset_xor(jit_regset_t*, jit_regset_t*, jit_regset_t*); | |
377 | ||
378 | extern void | |
379 | jit_regset_set(jit_regset_t*, jit_regset_t*); | |
380 | ||
381 | extern void | |
382 | jit_regset_set_mask(jit_regset_t*, jit_int32_t); | |
383 | ||
384 | extern jit_bool_t | |
385 | jit_regset_cmp_ui(jit_regset_t*, jit_word_t); | |
386 | ||
387 | extern void | |
388 | jit_regset_set_ui(jit_regset_t*, jit_word_t); | |
389 | ||
390 | extern jit_bool_t | |
391 | jit_regset_set_p(jit_regset_t*); | |
392 | ||
393 | extern void | |
394 | jit_regset_clrbit(jit_regset_t*, jit_int32_t); | |
395 | ||
396 | extern void | |
397 | jit_regset_setbit(jit_regset_t*, jit_int32_t); | |
398 | ||
399 | extern jit_bool_t | |
400 | jit_regset_tstbit(jit_regset_t*, jit_int32_t); | |
401 | # if __sparc__ && __WORDSIZE == 64 | |
402 | # define jit_regset_new(set) \ | |
403 | do { (set)->rl = (set)->rh = 0; } while (0) | |
404 | # define jit_regset_del(set) \ | |
405 | do { (set)->rl = (set)->rh = 0; } while (0) | |
406 | # else | |
407 | # define jit_regset_new(set) \ | |
408 | do { (set)->rl = (set)->rh = (set)->fl = (set)->fh = 0; } while (0) | |
409 | # define jit_regset_del(set) \ | |
410 | do { (set)->rl = (set)->rh = (set)->fl = (set)->fh = 0; } while (0) | |
411 | # endif | |
412 | #else | |
413 | # define jit_regset_com(u, v) (*(u) = ~*(v)) | |
414 | # define jit_regset_and(u, v, w) (*(u) = *(v) & *(w)) | |
415 | # define jit_regset_ior(u, v, w) (*(u) = *(v) | *(w)) | |
416 | # define jit_regset_xor(u, v, w) (*(u) = *(v) ^ *(w)) | |
417 | # define jit_regset_set(u, v) (*(u) = *(v)) | |
418 | # define jit_regset_set_mask(u, v) (*(u) = (1LL << (v)) - 1) | |
419 | # define jit_regset_cmp_ui(u, v) (*(u) != (v)) | |
420 | # define jit_regset_set_ui(u, v) (*(u) = (v)) | |
421 | # define jit_regset_set_p(set) (*set) | |
422 | # define jit_regset_clrbit(set, bit) (*(set) &= ~(1LL << (bit))) | |
423 | # define jit_regset_setbit(set, bit) (*(set) |= 1LL << (bit)) | |
424 | # define jit_regset_tstbit(set, bit) (*(set) & (1LL << (bit))) | |
425 | # define jit_regset_new(set) (*(set) = 0) | |
426 | # define jit_regset_del(set) (*(set) = 0) | |
427 | #endif | |
428 | extern unsigned long | |
429 | jit_regset_scan1(jit_regset_t*, jit_int32_t); | |
430 | ||
431 | #define jit_reglive_setup() \ | |
432 | do { \ | |
433 | jit_regset_set_ui(&_jitc->reglive, 0); \ | |
434 | jit_regset_set_ui(&_jitc->regmask, 0); \ | |
435 | } while (0) | |
436 | ||
437 | /* | |
438 | * Types | |
439 | */ | |
440 | typedef union jit_data jit_data_t; | |
441 | typedef struct jit_note jit_note_t; | |
442 | typedef struct jit_line jit_line_t; | |
443 | typedef struct jit_block jit_block_t; | |
444 | typedef struct jit_value jit_value_t; | |
445 | typedef struct jit_compiler jit_compiler_t; | |
446 | typedef struct jit_function jit_function_t; | |
447 | typedef struct jit_register jit_register_t; | |
448 | #if __arm__ | |
449 | # if DISASSEMBLER | |
450 | typedef struct jit_data_info jit_data_info_t; | |
451 | # endif | |
c0c16242 PC |
452 | #elif __riscv |
453 | typedef struct jit_const jit_const_t; | |
4a71579b PC |
454 | #endif |
455 | ||
456 | union jit_data { | |
457 | struct { | |
458 | #if __BYTE_ORDER == __LITTLE_ENDIAN | |
459 | jit_int32_t l; | |
460 | jit_int32_t h; | |
461 | #else | |
462 | jit_int32_t h; | |
463 | jit_int32_t l; | |
464 | #endif | |
465 | } q; | |
466 | jit_word_t w; | |
467 | jit_float32_t f; | |
468 | jit_float64_t d; | |
469 | jit_pointer_t p; | |
470 | jit_node_t *n; | |
471 | }; | |
472 | ||
473 | struct jit_note { | |
474 | jit_uint8_t *code; | |
475 | char *name; | |
476 | jit_line_t *lines; | |
477 | jit_word_t length; | |
478 | jit_word_t size; /* of code */ | |
479 | }; | |
480 | ||
481 | struct jit_line { | |
482 | char *file; | |
483 | jit_int32_t *linenos; | |
484 | jit_int32_t *offsets; | |
485 | jit_word_t length; | |
486 | }; | |
487 | ||
488 | struct jit_node { | |
489 | jit_node_t *next; | |
490 | jit_code_t code; | |
491 | jit_uint16_t flag; | |
492 | jit_uint16_t offset; /* Used if DEVEL_DISASSEMBLER */ | |
493 | jit_data_t u; | |
494 | jit_data_t v; | |
495 | jit_data_t w; | |
496 | jit_node_t *link; | |
497 | }; | |
498 | ||
499 | struct jit_block { | |
500 | jit_node_t *label; | |
501 | jit_regset_t reglive; | |
502 | jit_regset_t regmask; | |
c0c16242 PC |
503 | jit_bool_t again; /* Flag need to rebuild regset masks |
504 | * due to changes in live and unknown | |
505 | * state. */ | |
4a71579b PC |
506 | }; |
507 | ||
508 | struct jit_value { | |
509 | jit_int32_t kind; | |
510 | jit_code_t code; | |
511 | jit_data_t base; | |
512 | jit_data_t disp; | |
513 | }; | |
514 | ||
515 | typedef struct { | |
516 | #if __arm__ | |
517 | jit_word_t kind; | |
518 | #endif | |
519 | jit_word_t inst; | |
520 | jit_node_t *node; | |
521 | } jit_patch_t; | |
522 | ||
523 | #if __arm__ && DISASSEMBLER | |
524 | struct jit_data_info { | |
525 | jit_uword_t code; /* pointer in code buffer */ | |
526 | jit_word_t length; /* length of constant vector */ | |
527 | }; | |
c0c16242 PC |
528 | #elif __riscv && __WORDSIZE == 64 |
529 | struct jit_const { | |
530 | jit_word_t value; | |
531 | jit_word_t address; | |
532 | jit_const_t *next; | |
533 | }; | |
4a71579b PC |
534 | #endif |
535 | ||
536 | struct jit_function { | |
537 | struct { | |
538 | jit_int32_t argi; | |
539 | jit_int32_t argf; | |
540 | jit_int32_t size; | |
541 | jit_int32_t aoff; | |
542 | jit_int32_t alen; | |
543 | jit_int32_t call; | |
544 | jit_int32_t argn; /* for debug output */ | |
545 | } self; | |
546 | struct { | |
547 | jit_int32_t argi; | |
548 | jit_int32_t argf; | |
549 | jit_int32_t size; | |
550 | jit_int32_t call; | |
551 | } call; | |
552 | jit_node_t *prolog; | |
553 | jit_node_t *epilog; | |
79bfeef6 | 554 | jit_node_t *alist; |
4a71579b PC |
555 | jit_int32_t *regoff; |
556 | jit_regset_t regset; | |
557 | jit_int32_t stack; | |
ba86ff93 PC |
558 | #if defined(__i386__) || defined(__x86_64__) || \ |
559 | defined(__powerpc__) || defined(__sparc__) || \ | |
560 | defined(__s390__) || defined(__s390x__) || \ | |
561 | defined(__hppa__) || defined(__alpha__) | |
79bfeef6 PC |
562 | jit_int32_t cvt_offset; /* allocai'd offset for x87<->xmm or |
563 | * fpr<->gpr transfer using the stack */ | |
564 | #endif | |
4a71579b PC |
565 | |
566 | /* Helper for common jit generation pattern, used in GNU Smalltalk | |
567 | * and possibly others, where a static frame layout is required or | |
568 | * assumed. */ | |
569 | jit_int32_t frame; | |
570 | jit_uint32_t define_frame : 1; | |
571 | jit_uint32_t assume_frame : 1; | |
572 | ||
79bfeef6 PC |
573 | jit_uint32_t need_frame : 1; /* need frame pointer? */ |
574 | jit_uint32_t need_stack : 1; /* need stack pointer? */ | |
575 | jit_uint32_t need_return : 1; /* not a leaf function */ | |
576 | ||
4a71579b PC |
577 | /* alloca offset offset */ |
578 | jit_int32_t aoffoff; | |
579 | /* uses allocar flag */ | |
580 | jit_uint32_t allocar : 1; | |
581 | ||
79bfeef6 PC |
582 | #if __arm__ |
583 | /* If will, or might use float registers and vfp is not available. | |
584 | * Use the first 64 bytes always, as the access to the virtual float | |
585 | * registers use hardcoded instructions that can only reach 64 byte | |
586 | * displacements, and to keep code simpler, do not use temporaries. */ | |
587 | jit_uint32_t swf_offset : 1; | |
588 | /* If need to call C functions for some operation, or variadic function */ | |
589 | jit_uint32_t save_reg_args : 1; | |
590 | #endif | |
591 | ||
4a71579b PC |
592 | /* varargs state offsets */ |
593 | jit_int32_t vaoff; /* offset of jit_va_list */ | |
594 | jit_int32_t vagp; /* first gp va argument */ | |
595 | jit_int32_t vafp; /* first fp va argument */ | |
596 | }; | |
597 | ||
598 | /* data used only during jit generation */ | |
599 | struct jit_compiler { | |
600 | #if __ia64__ | |
601 | struct { | |
602 | jit_uint64_t i : 41; | |
603 | jit_uint64_t t : 4; | |
604 | } inst[3]; | |
605 | jit_regset_t regs; /* changed regs since last stop */ | |
606 | jit_int32_t pred; /* changed preds last stop */ | |
607 | jit_int32_t ioff; /* offset in inst vector */ | |
608 | jit_int32_t rout; /* first output register */ | |
609 | jit_int32_t breg; /* base register for prolog/epilog */ | |
610 | #endif | |
79bfeef6 PC |
611 | #if __mips__ |
612 | struct { | |
613 | jit_int32_t op; /* pending instruction, candidate | |
614 | * to be inserted in a delay slot */ | |
615 | jit_bool_t pend; /* non zero if need to emit op */ | |
616 | } inst; | |
617 | #endif | |
4a71579b | 618 | #if __mips__ || __ia64__ || __alpha__ || \ |
24d91c0d | 619 | (__sparc__ && __WORDSIZE == 64) || __riscv || __loongarch__ |
4a71579b PC |
620 | jit_int32_t carry; |
621 | #define jit_carry _jitc->carry | |
622 | #endif | |
623 | jit_node_t *head; | |
624 | jit_node_t *tail; | |
625 | jit_node_t *prepare; /* inside prepare/finish* block */ | |
626 | jit_uint32_t realize : 1; /* jit_realize() called? */ | |
627 | jit_uint32_t dataset : 1; /* jit_dataset() called? */ | |
628 | jit_uint32_t done : 1; /* emit state finished */ | |
629 | jit_uint32_t emit : 1; /* emit state entered */ | |
630 | jit_uint32_t again : 1; /* start over emiting function */ | |
631 | jit_uint32_t synth : 8; /* emiting synthesized instructions */ | |
632 | #if DEBUG | |
633 | jit_uint32_t getreg : 1; | |
634 | #endif | |
635 | jit_uint32_t no_data : 1; | |
636 | jit_uint32_t no_note : 1; | |
ba86ff93 PC |
637 | /* FIXME undocumented, might be moved to a jit_cpu field or a better |
638 | * configuration api. | |
639 | * These are switches to a different unld* or unst*. | |
640 | * Defaults are the algorithms that generate shorter code*/ | |
641 | jit_uint32_t unld_algorithm : 1; | |
642 | jit_uint32_t unst_algorithm : 1; | |
79bfeef6 PC |
643 | jit_int32_t framesize; /* space for callee save registers, |
644 | * frame pointer and return address */ | |
4a71579b PC |
645 | jit_int32_t reglen; /* number of registers */ |
646 | jit_regset_t regarg; /* cannot allocate */ | |
647 | jit_regset_t regsav; /* automatic spill only once */ | |
648 | jit_regset_t reglive; /* known live registers at some point */ | |
649 | jit_regset_t regmask; /* register mask to update reglive */ | |
79bfeef6 | 650 | jit_regset_t explive; /* explicitly marked as live */ |
4a71579b PC |
651 | struct { |
652 | jit_uint8_t *end; | |
653 | } code; | |
654 | struct { | |
655 | jit_uint8_t *ptr; | |
656 | jit_node_t **table; /* very simple hash table */ | |
657 | jit_word_t size; /* number of vectors in table */ | |
658 | jit_word_t count; /* number of hash table entries */ | |
659 | jit_word_t offset; /* offset in bytes in ptr */ | |
660 | } data; | |
661 | jit_node_t **spill; | |
662 | jit_int32_t *gen; /* ssa like "register version" */ | |
663 | jit_value_t *values; /* temporary jit_value_t vector */ | |
664 | struct { | |
665 | jit_block_t *ptr; | |
666 | jit_word_t offset; | |
667 | jit_word_t length; | |
668 | } blocks; /* basic blocks */ | |
669 | struct { | |
670 | jit_patch_t *ptr; | |
671 | jit_word_t offset; | |
672 | jit_word_t length; | |
673 | } patches; /* forward patch information */ | |
674 | jit_function_t *function; /* current function */ | |
675 | struct { | |
676 | jit_function_t *ptr; | |
677 | jit_word_t offset; | |
678 | jit_word_t length; | |
679 | } functions; /* prolog/epilogue offsets in code */ | |
680 | struct { | |
681 | jit_node_t **ptr; | |
682 | jit_word_t offset; | |
683 | jit_word_t length; | |
684 | } pool; | |
685 | jit_node_t *list; | |
686 | struct { | |
687 | jit_node_t *head; /* first note node */ | |
688 | jit_node_t *tail; /* linked list insertion */ | |
689 | /* fields to store temporary state information */ | |
690 | jit_word_t size; | |
691 | jit_node_t *name; | |
692 | jit_node_t *note; | |
693 | jit_uint8_t *base; | |
694 | } note; | |
695 | #if __arm__ | |
696 | /* prevent using thumb instructions that set flags? */ | |
697 | jit_uint32_t no_set_flags : 1; | |
698 | # if DISASSEMBLER | |
699 | struct { | |
700 | jit_data_info_t *ptr; | |
701 | jit_word_t offset; | |
702 | jit_word_t length; | |
703 | } data_info; /* constant pools information */ | |
704 | # endif | |
705 | /* Note that this field is somewhat hackish, but required by most | |
706 | * ways to implement jit, unless implementing a pure one function | |
707 | * per jit, as most times it needs to start the jit buffer with a | |
708 | * jump where the "main" prolog starts, and because the initial | |
709 | * code is in "arm mode", need to make an "arm mode" patch on that | |
710 | * jump. A good example is the test suite assembler, where most | |
711 | * test cases start with a "jmpi main" call. */ | |
712 | jit_uword_t thumb; | |
713 | struct { | |
714 | jit_uint8_t *data; /* pointer to code */ | |
715 | jit_word_t size; /* size data */ | |
716 | jit_word_t offset; /* pending patches */ | |
717 | jit_word_t length; /* number of pending constants */ | |
718 | jit_int32_t values[1024]; /* pending constants */ | |
719 | jit_word_t patches[2048]; | |
720 | } consts; | |
721 | #elif (__powerpc__ && _CALL_AIXDESC) || __ia64__ | |
722 | /* Keep track of prolog addresses, just for the sake of making | |
723 | * jit that starts with a jump to a "main" label work like other | |
724 | * backends. */ | |
725 | struct { | |
726 | jit_word_t *ptr; | |
727 | jit_word_t offset; | |
728 | jit_word_t length; | |
729 | } prolog; | |
730 | jit_bool_t jump; | |
c0c16242 PC |
731 | #elif __riscv && __WORDSIZE == 64 |
732 | struct { | |
733 | /* Hash table for constants to be resolved and patched */ | |
734 | struct { | |
735 | jit_const_t **table; /* very simple hash table */ | |
736 | jit_word_t size; /* number of vectors in table */ | |
737 | jit_word_t count; /* number of distinct entries */ | |
738 | } hash; | |
739 | struct { | |
740 | jit_const_t **ptr; /* keep a single pointer */ | |
741 | jit_const_t *list; /* free list */ | |
742 | jit_word_t length; /* length of pool */ | |
743 | } pool; | |
744 | /* Linear list for constants that cannot be encoded easily */ | |
745 | struct { | |
746 | jit_word_t *instrs; /* list of direct movi instructions */ | |
747 | jit_word_t *values; /* list of direct movi constants */ | |
748 | jit_word_t offset; /* offset in instrs/values vector */ | |
749 | jit_word_t length; /* length of instrs/values vector */ | |
750 | } vector; | |
751 | } consts; | |
4a71579b PC |
752 | #endif |
753 | #if GET_JIT_SIZE | |
754 | /* Temporary storage to calculate instructions length */ | |
755 | jit_word_t size; | |
756 | /* Global flag for code buffer heuristic size computation */ | |
757 | jit_word_t mult; | |
758 | /* Pointer to code to prevent miscalculation if reallocating buffer */ | |
759 | jit_uint8_t *cptr; | |
760 | #endif | |
761 | }; | |
762 | ||
763 | #define _jitc _jit->comp | |
764 | struct jit_state { | |
765 | union { | |
766 | jit_uint8_t *uc; | |
767 | jit_uint16_t *us; | |
768 | jit_uint32_t *ui; | |
769 | jit_uint64_t *ul; | |
770 | jit_word_t w; | |
771 | } pc; | |
772 | struct { | |
773 | jit_uint8_t *ptr; | |
774 | jit_word_t length; | |
79bfeef6 | 775 | /* PROTECTED bytes starting at PTR are mprotect'd. */ |
ba86ff93 | 776 | jit_word_t protect; |
4a71579b PC |
777 | } code; |
778 | struct { | |
779 | jit_uint8_t *ptr; | |
780 | jit_word_t length; | |
781 | } data; | |
782 | struct { | |
783 | jit_note_t *ptr; | |
784 | jit_word_t length; | |
785 | } note; | |
786 | jit_compiler_t *comp; | |
787 | /* Flags to know if user did set the code and data buffers */ | |
788 | jit_uint32_t user_code : 1; | |
789 | jit_uint32_t user_data : 1; | |
790 | }; | |
791 | ||
792 | struct jit_register { | |
793 | jit_reg_t spec; | |
794 | char *name; | |
795 | }; | |
796 | ||
797 | /* | |
798 | * Prototypes | |
799 | */ | |
800 | extern void jit_get_cpu(void); | |
801 | ||
802 | #define jit_init() _jit_init(_jit) | |
803 | extern void _jit_init(jit_state_t*); | |
804 | ||
805 | #define jit_synth_inc() _jit_synth_inc(_jit) | |
806 | extern void _jit_synth_inc(jit_state_t*); | |
807 | ||
808 | #define jit_new_node_no_link(u) _jit_new_node_no_link(_jit, u) | |
809 | extern jit_node_t *_jit_new_node_no_link(jit_state_t*, jit_code_t); | |
810 | ||
811 | #define jit_link_node(u) _jit_link_node(_jit, u) | |
812 | extern void _jit_link_node(jit_state_t*, jit_node_t*); | |
813 | ||
814 | #define jit_link_label(l) _jit_link_label(_jit,l) | |
815 | extern void | |
816 | _jit_link_label(jit_state_t*,jit_node_t*); | |
817 | ||
818 | #define jit_synth_dec() _jit_synth_dec(_jit) | |
819 | extern void _jit_synth_dec(jit_state_t*); | |
820 | ||
821 | #define jit_reglive(node) _jit_reglive(_jit, node) | |
822 | extern void | |
823 | _jit_reglive(jit_state_t*, jit_node_t*); | |
824 | ||
825 | #define jit_regarg_set(n,v) _jit_regarg_set(_jit,n,v) | |
826 | extern void | |
827 | _jit_regarg_set(jit_state_t*, jit_node_t*, jit_int32_t); | |
828 | ||
829 | #define jit_regarg_clr(n,v) _jit_regarg_clr(_jit,n,v) | |
830 | extern void | |
831 | _jit_regarg_clr(jit_state_t*, jit_node_t*, jit_int32_t); | |
832 | ||
4a71579b PC |
833 | #define jit_save(reg) _jit_save(_jit, reg) |
834 | extern void | |
835 | _jit_save(jit_state_t*, jit_int32_t); | |
836 | ||
837 | #define jit_load(reg) _jit_load(_jit, reg) | |
838 | extern void | |
839 | _jit_load(jit_state_t*, jit_int32_t); | |
840 | ||
841 | #define jit_trampoline(u,v) _jit_trampoline(_jit, u, v) | |
842 | extern void _jit_trampoline(jit_state_t*, jit_int32_t, jit_bool_t); | |
843 | ||
844 | #define jit_optimize() _jit_optimize(_jit) | |
845 | extern void | |
846 | _jit_optimize(jit_state_t*); | |
847 | ||
848 | #define jit_classify(code) _jit_classify(_jit, code) | |
849 | extern jit_int32_t | |
850 | _jit_classify(jit_state_t*, jit_code_t); | |
851 | ||
852 | #define jit_regarg_p(n, r) _jit_regarg_p(_jit, n, r) | |
853 | extern jit_bool_t | |
854 | _jit_regarg_p(jit_state_t*, jit_node_t*, jit_int32_t); | |
855 | ||
856 | #define emit_code() _emit_code(_jit) | |
857 | extern jit_pointer_t | |
858 | _emit_code(jit_state_t*); | |
859 | ||
860 | extern void | |
861 | jit_flush(void *fptr, void *tptr); | |
862 | ||
863 | #define emit_ldxi(r0, r1, i0) _emit_ldxi(_jit, r0, r1, i0) | |
864 | extern void | |
865 | _emit_ldxi(jit_state_t*, jit_int32_t, jit_int32_t, jit_word_t); | |
866 | ||
867 | #define emit_stxi(i0, r0, r1) _emit_stxi(_jit, i0, r0, r1) | |
868 | extern void | |
869 | _emit_stxi(jit_state_t*, jit_word_t, jit_int32_t, jit_int32_t); | |
870 | ||
871 | #define emit_ldxi_d(r0, r1, i0) _emit_ldxi_d(_jit, r0, r1, i0) | |
872 | extern void | |
873 | _emit_ldxi_d(jit_state_t*, jit_int32_t, jit_int32_t, jit_word_t); | |
874 | ||
875 | #define emit_stxi_d(i0, r0, r1) _emit_stxi_d(_jit, i0, r0, r1) | |
876 | extern void | |
877 | _emit_stxi_d(jit_state_t*, jit_word_t, jit_int32_t, jit_int32_t); | |
878 | ||
40a44dcb | 879 | extern void jit_init_print(void); |
4a71579b PC |
880 | extern void jit_init_debug(const char*); |
881 | extern void jit_finish_debug(void); | |
882 | ||
883 | extern void jit_init_note(void); | |
884 | extern void jit_finish_note(void); | |
885 | #define jit_set_note(n,u,v,w) _jit_set_note(_jit, n, u, v, w) | |
886 | extern void _jit_set_note(jit_state_t*, jit_note_t*, char*, int, jit_int32_t); | |
887 | #define jit_annotate() _jit_annotate(_jit) | |
888 | extern void _jit_annotate(jit_state_t*); | |
889 | ||
890 | #define jit_print_node(u) _jit_print_node(_jit,u) | |
891 | extern void _jit_print_node(jit_state_t*,jit_node_t*); | |
892 | ||
893 | extern jit_pointer_t jit_memcpy(jit_pointer_t,const void*,jit_word_t); | |
894 | extern jit_pointer_t jit_memmove(jit_pointer_t,const void*,jit_word_t); | |
895 | extern void jit_alloc(jit_pointer_t*, jit_word_t); | |
896 | extern void jit_realloc(jit_pointer_t*, jit_word_t, jit_word_t); | |
897 | void jit_free(jit_pointer_t*); | |
898 | ||
899 | extern void jit_init_size(void); | |
900 | extern void jit_finish_size(void); | |
901 | ||
902 | #if GET_JIT_SIZE | |
903 | # define jit_size_prepare() _jit_size_prepare(_jit) | |
904 | extern void | |
905 | _jit_size_prepare(jit_state_t*); | |
906 | ||
907 | # define jit_size_collect(node) _jit_size_collect(_jit, node) | |
908 | extern void | |
909 | _jit_size_collect(jit_state_t*, jit_node_t*); | |
910 | #else | |
911 | # define jit_get_size() _jit_get_size(_jit) | |
912 | extern jit_word_t | |
913 | _jit_get_size(jit_state_t*); | |
914 | #endif | |
915 | ||
916 | extern jit_word_t | |
917 | jit_get_max_instr(void); | |
918 | ||
919 | /* | |
920 | * Externs | |
921 | */ | |
922 | extern jit_register_t _rvs[]; | |
923 | ||
924 | #endif /* _jit_private_h */ |