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1 | /* |
2 | * Copyright (C) 2013-2019 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 | #include <lightning.h> | |
21 | #include <lightning/jit_private.h> | |
22 | ||
23 | #if __WORDSIZE == 32 | |
24 | # define NUM_FLOAT_REG_ARGS 2 | |
25 | #else | |
26 | # define NUM_FLOAT_REG_ARGS 4 | |
27 | #endif | |
28 | #define jit_arg_reg_p(i) ((i) >= 0 && (i) < 5) | |
29 | #define jit_arg_f_reg_p(i) ((i) >= 0 && (i) < NUM_FLOAT_REG_ARGS) | |
30 | ||
31 | /* | |
32 | * Types | |
33 | */ | |
34 | typedef struct jit_va_list { | |
35 | /* The offsets are "1" based, as addresses are fixed in the | |
36 | * standard stack frame format. */ | |
37 | jit_word_t gpoff; | |
38 | jit_word_t fpoff; | |
39 | ||
40 | /* Easier when there is an explicitly defined type... | |
41 | (gdb) ptype ap | |
42 | type = struct __va_list_tag { | |
43 | long __gpr; | |
44 | long __fpr; | |
45 | void *__overflow_arg_area; | |
46 | void *__reg_save_area; | |
47 | ||
48 | Note that gopff (__gpr) and fpoff (__fpr) are jit_word_t equivalent | |
49 | and, again, "1" (unit) based, so must be adjusted at va_arg time. | |
50 | */ | |
51 | jit_pointer_t over; | |
52 | jit_pointer_t save; | |
53 | ||
54 | /* For variadic functions, always allocate space to save callee | |
55 | * save fpr registers. | |
56 | * Note that s390 has a standard stack frame format that lightning | |
57 | * does not fully comply with, but for variadic functions it must, | |
58 | * for those (variadic) do not use the "empty" spaces for any | |
59 | * callee save fpr register, but save them after the va_list | |
60 | * space; and use the standard stack frame format, as required | |
61 | * by variadic functions (and have a compatible va_list pointer). */ | |
62 | jit_float64_t f8; | |
63 | jit_float64_t f9; | |
64 | jit_float64_t f10; | |
65 | jit_float64_t f11; | |
66 | jit_float64_t f12; | |
67 | jit_float64_t f13; | |
68 | jit_float64_t f14; | |
69 | jit_float64_t f15; | |
70 | } jit_va_list_t; | |
71 | ||
72 | /* | |
73 | * Prototypes | |
74 | */ | |
75 | #define jit_get_reg_pair() _jit_get_reg_pair(_jit) | |
76 | static jit_int32_t _jit_get_reg_pair(jit_state_t*); | |
77 | #define jit_unget_reg_pair(regno) _jit_unget_reg_pair(_jit,regno) | |
78 | static void _jit_unget_reg_pair(jit_state_t*,jit_int32_t); | |
79 | #define jit_get_reg_but_zero(flags) _jit_get_reg_but_zero(_jit,flags) | |
80 | static jit_int32_t _jit_get_reg_but_zero(jit_state_t*,jit_int32_t); | |
81 | #define jit_unget_reg_but_zero(reg) jit_unget_reg(reg) | |
82 | #define patch(instr, node) _patch(_jit, instr, node) | |
83 | static void _patch(jit_state_t*,jit_word_t,jit_node_t*); | |
84 | ||
85 | /* libgcc */ | |
86 | extern void __clear_cache(void *, void *); | |
87 | ||
88 | #define PROTO 1 | |
89 | # include "jit_s390-cpu.c" | |
90 | # include "jit_s390-fpu.c" | |
91 | #undef PROTO | |
92 | ||
93 | /* | |
94 | * Initialization | |
95 | */ | |
96 | jit_register_t _rvs[] = { | |
97 | { rc(gpr) | 0x0, "%r0" }, | |
98 | { rc(gpr) | 0x1, "%r1" }, | |
99 | { rc(gpr) | rc(sav) | 0xc, "%r12" }, | |
100 | { rc(gpr) | rc(sav) | 0xb, "%r11" }, | |
101 | { rc(gpr) | rc(sav) | 0xa, "%r10" }, | |
102 | { rc(gpr) | rc(sav) | 0x9, "%r9" }, | |
103 | { rc(gpr) | rc(sav) | 0x8, "%r8" }, | |
104 | { rc(gpr) | rc(sav) | 0x7, "%r7" }, | |
105 | { rc(gpr) | rc(arg) | rc(sav) | 0x6,"%r6" }, | |
106 | { rc(gpr) | rc(arg) | 0x5, "%r5" }, | |
107 | { rc(gpr) | rc(arg) | 0x4, "%r4" }, | |
108 | { rc(gpr) | rc(arg) | 0x3, "%r3" }, | |
109 | { rc(gpr) | rc(arg) | 0x2, "%r2" }, | |
110 | { rc(sav) | 0xd, "%r13" }, /* used as JIT_FP */ | |
111 | { 0xe, "%r14" }, | |
112 | { rc(sav) | 0xf, "%r15" }, | |
113 | { rc(fpr) | 0x1, "%f1" }, | |
114 | { rc(fpr) | 0x3, "%f3" }, | |
115 | { rc(fpr) | 0x5, "%f5" }, | |
116 | { rc(fpr) | 0x7, "%f7" }, | |
117 | { rc(fpr) | rc(sav) | 0xe, "%f14" }, | |
118 | /* Do not use as temporary to simplify stack layout */ | |
119 | { 0xf, "%f15" }, | |
120 | { rc(fpr) | rc(sav) | 0x8, "%f8" }, | |
121 | { rc(fpr) | rc(sav) | 0x9, "%f9" }, | |
122 | { rc(fpr) | rc(sav) | 0xa, "%f10" }, | |
123 | { rc(fpr) | rc(sav) | 0xb, "%f11" }, | |
124 | { rc(fpr) | rc(sav) | 0xc, "%f12" }, | |
125 | { rc(fpr) | rc(sav) | 0xd, "%f13" }, | |
126 | { rc(fpr) | rc(arg) | 0x6, "%f6" }, | |
127 | { rc(fpr) | rc(arg) | 0x4, "%f4" }, | |
128 | { rc(fpr) | rc(arg) | 0x2, "%f2" }, | |
129 | { rc(fpr) | rc(arg) | 0x0, "%f0" }, | |
130 | { _NOREG, "<none>" }, | |
131 | }; | |
132 | ||
133 | /* | |
134 | * Implementation | |
135 | */ | |
136 | void | |
137 | jit_get_cpu(void) | |
138 | { | |
139 | } | |
140 | ||
141 | void | |
142 | _jit_init(jit_state_t *_jit) | |
143 | { | |
144 | _jitc->reglen = jit_size(_rvs) - 1; | |
145 | } | |
146 | ||
147 | void | |
148 | _jit_prolog(jit_state_t *_jit) | |
149 | { | |
150 | jit_int32_t offset; | |
151 | ||
152 | if (_jitc->function) | |
153 | jit_epilog(); | |
154 | assert(jit_regset_cmp_ui(&_jitc->regarg, 0) == 0); | |
155 | jit_regset_set_ui(&_jitc->regsav, 0); | |
156 | offset = _jitc->functions.offset; | |
157 | if (offset >= _jitc->functions.length) { | |
158 | jit_realloc((jit_pointer_t *)&_jitc->functions.ptr, | |
159 | _jitc->functions.length * sizeof(jit_function_t), | |
160 | (_jitc->functions.length + 16) * sizeof(jit_function_t)); | |
161 | _jitc->functions.length += 16; | |
162 | } | |
163 | _jitc->function = _jitc->functions.ptr + _jitc->functions.offset++; | |
164 | _jitc->function->self.size = stack_framesize; | |
165 | _jitc->function->self.argi = _jitc->function->self.argf = | |
166 | _jitc->function->self.aoff = _jitc->function->self.alen = 0; | |
167 | /* preallocate 8 bytes if not using a constant data buffer */ | |
168 | if (_jitc->no_data) | |
169 | _jitc->function->self.aoff = -8; | |
170 | _jitc->function->self.call = jit_call_default; | |
171 | jit_alloc((jit_pointer_t *)&_jitc->function->regoff, | |
172 | _jitc->reglen * sizeof(jit_int32_t)); | |
173 | ||
174 | /* _no_link here does not mean the jit_link() call can be removed | |
175 | * by rewriting as: | |
176 | * _jitc->function->prolog = jit_new_node(jit_code_prolog); | |
177 | */ | |
178 | _jitc->function->prolog = jit_new_node_no_link(jit_code_prolog); | |
179 | jit_link(_jitc->function->prolog); | |
180 | _jitc->function->prolog->w.w = offset; | |
181 | _jitc->function->epilog = jit_new_node_no_link(jit_code_epilog); | |
182 | /* u: label value | |
183 | * v: offset in blocks vector | |
184 | * w: offset in functions vector | |
185 | */ | |
186 | _jitc->function->epilog->w.w = offset; | |
187 | ||
188 | jit_regset_new(&_jitc->function->regset); | |
189 | } | |
190 | ||
191 | jit_int32_t | |
192 | _jit_allocai(jit_state_t *_jit, jit_int32_t length) | |
193 | { | |
194 | assert(_jitc->function); | |
195 | switch (length) { | |
196 | case 0: case 1: break; | |
197 | case 2: _jitc->function->self.aoff &= -2; break; | |
198 | case 3: case 4: _jitc->function->self.aoff &= -4; break; | |
199 | default: _jitc->function->self.aoff &= -8; break; | |
200 | } | |
201 | _jitc->function->self.aoff -= length; | |
202 | if (!_jitc->realize) { | |
203 | jit_inc_synth_ww(allocai, _jitc->function->self.aoff, length); | |
204 | jit_dec_synth(); | |
205 | } | |
206 | return (_jitc->function->self.aoff); | |
207 | } | |
208 | ||
209 | void | |
210 | _jit_allocar(jit_state_t *_jit, jit_int32_t u, jit_int32_t v) | |
211 | { | |
212 | jit_int32_t reg; | |
213 | assert(_jitc->function); | |
214 | jit_inc_synth_ww(allocar, u, v); | |
215 | if (!_jitc->function->allocar) { | |
216 | _jitc->function->aoffoff = jit_allocai(sizeof(jit_int32_t)); | |
217 | _jitc->function->allocar = 1; | |
218 | } | |
219 | reg = jit_get_reg(jit_class_gpr); | |
220 | jit_negr(reg, v); | |
221 | jit_andi(reg, reg, -8); | |
222 | jit_ldxi_i(u, JIT_FP, _jitc->function->aoffoff); | |
223 | jit_addr(u, u, reg); | |
224 | jit_addr(JIT_SP, JIT_SP, reg); | |
225 | jit_stxi_i(_jitc->function->aoffoff, JIT_FP, u); | |
226 | jit_unget_reg(reg); | |
227 | jit_dec_synth(); | |
228 | } | |
229 | ||
230 | void | |
231 | _jit_ret(jit_state_t *_jit) | |
232 | { | |
233 | jit_node_t *instr; | |
234 | assert(_jitc->function); | |
235 | jit_inc_synth(ret); | |
236 | /* jump to epilog */ | |
237 | instr = jit_jmpi(); | |
238 | jit_patch_at(instr, _jitc->function->epilog); | |
239 | jit_dec_synth(); | |
240 | } | |
241 | ||
242 | void | |
243 | _jit_retr(jit_state_t *_jit, jit_int32_t u) | |
244 | { | |
245 | jit_inc_synth_w(retr, u); | |
246 | jit_movr(JIT_RET, u); | |
247 | jit_ret(); | |
248 | jit_dec_synth(); | |
249 | } | |
250 | ||
251 | void | |
252 | _jit_reti(jit_state_t *_jit, jit_word_t u) | |
253 | { | |
254 | jit_inc_synth_w(reti, u); | |
255 | jit_movi(JIT_RET, u); | |
256 | jit_ret(); | |
257 | jit_dec_synth(); | |
258 | } | |
259 | ||
260 | void | |
261 | _jit_retr_f(jit_state_t *_jit, jit_int32_t u) | |
262 | { | |
263 | jit_inc_synth_w(retr_f, u); | |
264 | jit_movr_f(JIT_FRET, u); | |
265 | jit_ret(); | |
266 | jit_dec_synth(); | |
267 | } | |
268 | ||
269 | void | |
270 | _jit_reti_f(jit_state_t *_jit, jit_float32_t u) | |
271 | { | |
272 | jit_inc_synth_f(reti_f, u); | |
273 | jit_movi_f(JIT_FRET, u); | |
274 | jit_ret(); | |
275 | jit_dec_synth(); | |
276 | } | |
277 | ||
278 | void | |
279 | _jit_retr_d(jit_state_t *_jit, jit_int32_t u) | |
280 | { | |
281 | jit_inc_synth_w(retr_d, u); | |
282 | jit_movr_d(JIT_FRET, u); | |
283 | jit_ret(); | |
284 | jit_dec_synth(); | |
285 | } | |
286 | ||
287 | void | |
288 | _jit_reti_d(jit_state_t *_jit, jit_float64_t u) | |
289 | { | |
290 | jit_inc_synth_d(reti_d, u); | |
291 | jit_movi_d(JIT_FRET, u); | |
292 | jit_ret(); | |
293 | jit_dec_synth(); | |
294 | } | |
295 | ||
296 | void | |
297 | _jit_epilog(jit_state_t *_jit) | |
298 | { | |
299 | assert(_jitc->function); | |
300 | assert(_jitc->function->epilog->next == NULL); | |
301 | jit_link(_jitc->function->epilog); | |
302 | _jitc->function = NULL; | |
303 | } | |
304 | ||
305 | jit_bool_t | |
306 | _jit_arg_register_p(jit_state_t *_jit, jit_node_t *u) | |
307 | { | |
308 | if (u->code == jit_code_arg) | |
309 | return (jit_arg_reg_p(u->u.w)); | |
310 | assert(u->code == jit_code_arg_f || u->code == jit_code_arg_d); | |
311 | return (jit_arg_f_reg_p(u->u.w)); | |
312 | } | |
313 | ||
314 | void | |
315 | _jit_ellipsis(jit_state_t *_jit) | |
316 | { | |
317 | jit_inc_synth(ellipsis); | |
318 | if (_jitc->prepare) { | |
319 | jit_link_prepare(); | |
320 | assert(!(_jitc->function->call.call & jit_call_varargs)); | |
321 | _jitc->function->call.call |= jit_call_varargs; | |
322 | } | |
323 | else { | |
324 | jit_link_prolog(); | |
325 | assert(!(_jitc->function->self.call & jit_call_varargs)); | |
326 | _jitc->function->self.call |= jit_call_varargs; | |
327 | ||
328 | /* Allocate va_list like object in the stack. */ | |
329 | _jitc->function->vaoff = jit_allocai(sizeof(jit_va_list_t)); | |
330 | ||
331 | /* Initialize gp offset in save area. */ | |
332 | if (jit_arg_reg_p(_jitc->function->self.argi)) | |
333 | _jitc->function->vagp = _jitc->function->self.argi; | |
334 | else | |
335 | _jitc->function->vagp = 5; | |
336 | ||
337 | /* Initialize fp offset in save area. */ | |
338 | if (jit_arg_f_reg_p(_jitc->function->self.argf)) | |
339 | _jitc->function->vafp = _jitc->function->self.argf; | |
340 | else | |
341 | _jitc->function->vafp = NUM_FLOAT_REG_ARGS; | |
342 | } | |
343 | jit_dec_synth(); | |
344 | } | |
345 | ||
346 | void | |
347 | _jit_va_push(jit_state_t *_jit, jit_int32_t u) | |
348 | { | |
349 | jit_inc_synth_w(va_push, u); | |
350 | jit_pushargr(u); | |
351 | jit_dec_synth(); | |
352 | } | |
353 | ||
354 | jit_node_t * | |
355 | _jit_arg(jit_state_t *_jit) | |
356 | { | |
357 | jit_node_t *node; | |
358 | jit_int32_t offset; | |
359 | assert(_jitc->function); | |
360 | if (jit_arg_reg_p(_jitc->function->self.argi)) | |
361 | offset = _jitc->function->self.argi++; | |
362 | else { | |
363 | offset = _jitc->function->self.size; | |
364 | _jitc->function->self.size += sizeof(jit_word_t); | |
365 | } | |
366 | node = jit_new_node_ww(jit_code_arg, offset, | |
367 | ++_jitc->function->self.argn); | |
368 | jit_link_prolog(); | |
369 | return (node); | |
370 | } | |
371 | ||
372 | jit_node_t * | |
373 | _jit_arg_f(jit_state_t *_jit) | |
374 | { | |
375 | jit_node_t *node; | |
376 | jit_int32_t offset; | |
377 | assert(_jitc->function); | |
378 | if (jit_arg_f_reg_p(_jitc->function->self.argf)) | |
379 | offset = _jitc->function->self.argf++; | |
380 | else { | |
381 | offset = _jitc->function->self.size; | |
382 | _jitc->function->self.size += sizeof(jit_word_t); | |
383 | } | |
384 | node = jit_new_node_ww(jit_code_arg_f, offset, | |
385 | ++_jitc->function->self.argn); | |
386 | jit_link_prolog(); | |
387 | return (node); | |
388 | } | |
389 | ||
390 | jit_node_t * | |
391 | _jit_arg_d(jit_state_t *_jit) | |
392 | { | |
393 | jit_node_t *node; | |
394 | jit_int32_t offset; | |
395 | assert(_jitc->function); | |
396 | if (jit_arg_f_reg_p(_jitc->function->self.argf)) | |
397 | offset = _jitc->function->self.argf++; | |
398 | else { | |
399 | offset = _jitc->function->self.size; | |
400 | _jitc->function->self.size += sizeof(jit_float64_t); | |
401 | } | |
402 | node = jit_new_node_ww(jit_code_arg_d, offset, | |
403 | ++_jitc->function->self.argn); | |
404 | jit_link_prolog(); | |
405 | return (node); | |
406 | } | |
407 | ||
408 | void | |
409 | _jit_getarg_c(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) | |
410 | { | |
411 | assert(v->code == jit_code_arg); | |
412 | jit_inc_synth_wp(getarg_c, u, v); | |
413 | if (jit_arg_reg_p(v->u.w)) | |
414 | jit_extr_c(u, _R2 - v->u.w); | |
415 | else | |
416 | jit_ldxi_c(u, JIT_FP, | |
417 | v->u.w + (__WORDSIZE >> 3) - sizeof(jit_int8_t)); | |
418 | jit_dec_synth(); | |
419 | } | |
420 | ||
421 | void | |
422 | _jit_getarg_uc(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) | |
423 | { | |
424 | assert(v->code == jit_code_arg); | |
425 | jit_inc_synth_wp(getarg_uc, u, v); | |
426 | if (jit_arg_reg_p(v->u.w)) | |
427 | jit_extr_uc(u, _R2 - v->u.w); | |
428 | else | |
429 | jit_ldxi_uc(u, JIT_FP, | |
430 | v->u.w + (__WORDSIZE >> 3) - sizeof(jit_uint8_t)); | |
431 | jit_dec_synth(); | |
432 | } | |
433 | ||
434 | void | |
435 | _jit_getarg_s(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) | |
436 | { | |
437 | assert(v->code == jit_code_arg); | |
438 | jit_inc_synth_wp(getarg_s, u, v); | |
439 | if (jit_arg_reg_p(v->u.w)) | |
440 | jit_extr_s(u, _R2 - v->u.w); | |
441 | else | |
442 | jit_ldxi_s(u, JIT_FP, | |
443 | v->u.w + (__WORDSIZE >> 3) - sizeof(jit_int16_t)); | |
444 | jit_dec_synth(); | |
445 | } | |
446 | ||
447 | void | |
448 | _jit_getarg_us(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) | |
449 | { | |
450 | assert(v->code == jit_code_arg); | |
451 | jit_inc_synth_wp(getarg_us, u, v); | |
452 | if (jit_arg_reg_p(v->u.w)) | |
453 | jit_extr_us(u, _R2 - v->u.w); | |
454 | else | |
455 | jit_ldxi_us(u, JIT_FP, | |
456 | v->u.w + (__WORDSIZE >> 3) - sizeof(jit_uint16_t)); | |
457 | jit_dec_synth(); | |
458 | } | |
459 | ||
460 | void | |
461 | _jit_getarg_i(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) | |
462 | { | |
463 | assert(v->code == jit_code_arg); | |
464 | jit_inc_synth_wp(getarg_i, u, v); | |
465 | if (jit_arg_reg_p(v->u.w)) { | |
466 | #if __WORDSIZE == 32 | |
467 | jit_movr(u, _R2 - v->u.w); | |
468 | #else | |
469 | jit_extr_i(u, _R2 - v->u.w); | |
470 | #endif | |
471 | } | |
472 | else | |
473 | jit_ldxi_i(u, JIT_FP, | |
474 | v->u.w + (__WORDSIZE >> 3) - sizeof(jit_int32_t)); | |
475 | jit_dec_synth(); | |
476 | } | |
477 | ||
478 | #if __WORDSIZE == 64 | |
479 | void | |
480 | _jit_getarg_ui(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) | |
481 | { | |
482 | assert(v->code == jit_code_arg); | |
483 | jit_inc_synth_wp(getarg_ui, u, v); | |
484 | if (jit_arg_reg_p(v->u.w)) | |
485 | jit_extr_ui(u, _R2 - v->u.w); | |
486 | else | |
487 | jit_ldxi_ui(u, JIT_FP, | |
488 | v->u.w + (__WORDSIZE >> 3) - sizeof(jit_uint32_t)); | |
489 | jit_dec_synth(); | |
490 | } | |
491 | ||
492 | void | |
493 | _jit_getarg_l(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) | |
494 | { | |
495 | assert(v->code == jit_code_arg); | |
496 | jit_inc_synth_wp(getarg_l, u, v); | |
497 | if (jit_arg_reg_p(v->u.w)) | |
498 | jit_movr(u, _R2 - v->u.w); | |
499 | else | |
500 | jit_ldxi_l(u, JIT_FP, v->u.w); | |
501 | jit_dec_synth(); | |
502 | } | |
503 | #endif | |
504 | ||
505 | void | |
506 | _jit_putargr(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) | |
507 | { | |
508 | assert(v->code == jit_code_arg); | |
509 | jit_inc_synth_wp(putargr, u, v); | |
510 | if (jit_arg_reg_p(v->u.w)) | |
511 | jit_movr(_R2 - v->u.w, u); | |
512 | else | |
513 | jit_stxi(v->u.w, JIT_FP, u); | |
514 | jit_dec_synth(); | |
515 | } | |
516 | ||
517 | void | |
518 | _jit_putargi(jit_state_t *_jit, jit_word_t u, jit_node_t *v) | |
519 | { | |
520 | jit_int32_t regno; | |
521 | assert(v->code == jit_code_arg); | |
522 | jit_inc_synth_wp(putargi, u, v); | |
523 | if (jit_arg_reg_p(v->u.w)) | |
524 | jit_movi(_R2 - v->u.w, u); | |
525 | else { | |
526 | regno = jit_get_reg(jit_class_gpr); | |
527 | jit_movi(regno, u); | |
528 | jit_stxi(v->u.w, JIT_FP, regno); | |
529 | jit_unget_reg(regno); | |
530 | } | |
531 | jit_dec_synth(); | |
532 | } | |
533 | ||
534 | void | |
535 | _jit_getarg_f(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) | |
536 | { | |
537 | assert(v->code == jit_code_arg_f); | |
538 | jit_inc_synth_wp(getarg_f, u, v); | |
539 | if (jit_arg_f_reg_p(v->u.w)) | |
540 | jit_movr_f(u, _F0 - v->u.w); | |
541 | else | |
542 | jit_ldxi_f(u, JIT_FP, | |
543 | v->u.w | |
544 | #if __WORDSIZE == 64 | |
545 | + (__WORDSIZE >> 3) - sizeof(jit_float32_t) | |
546 | #endif | |
547 | ); | |
548 | jit_dec_synth(); | |
549 | } | |
550 | ||
551 | void | |
552 | _jit_putargr_f(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) | |
553 | { | |
554 | assert(v->code == jit_code_arg_f); | |
555 | jit_inc_synth_wp(putargr_f, u, v); | |
556 | if (jit_arg_f_reg_p(v->u.w)) | |
557 | jit_movr_f(_F0 - v->u.w, u); | |
558 | else | |
559 | jit_stxi_f(v->u.w | |
560 | #if __WORDSIZE == 64 | |
561 | + (__WORDSIZE >> 3) - sizeof(jit_float32_t) | |
562 | #endif | |
563 | , JIT_FP, u); | |
564 | jit_dec_synth(); | |
565 | } | |
566 | ||
567 | void | |
568 | _jit_putargi_f(jit_state_t *_jit, jit_float32_t u, jit_node_t *v) | |
569 | { | |
570 | jit_int32_t regno; | |
571 | assert(v->code == jit_code_arg_f); | |
572 | jit_inc_synth_fp(putargi_f, u, v); | |
573 | if (jit_arg_f_reg_p(v->u.w)) | |
574 | jit_movi_f(_F0 - v->u.w, u); | |
575 | else { | |
576 | regno = jit_get_reg(jit_class_fpr); | |
577 | jit_movi_f(regno, u); | |
578 | jit_stxi_f(v->u.w | |
579 | #if __WORDSIZE == 64 | |
580 | + (__WORDSIZE >> 3) - sizeof(jit_float32_t) | |
581 | #endif | |
582 | , JIT_FP, regno); | |
583 | jit_unget_reg(regno); | |
584 | } | |
585 | jit_dec_synth(); | |
586 | } | |
587 | ||
588 | void | |
589 | _jit_getarg_d(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) | |
590 | { | |
591 | assert(v->code == jit_code_arg_d); | |
592 | jit_inc_synth_wp(getarg_d, u, v); | |
593 | if (jit_arg_f_reg_p(v->u.w)) | |
594 | jit_movr_d(u, _F0 - v->u.w); | |
595 | else | |
596 | jit_ldxi_d(u, JIT_FP, v->u.w); | |
597 | jit_dec_synth(); | |
598 | } | |
599 | ||
600 | void | |
601 | _jit_putargr_d(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) | |
602 | { | |
603 | assert(v->code == jit_code_arg_d); | |
604 | jit_inc_synth_wp(putargr_d, u, v); | |
605 | if (jit_arg_f_reg_p(v->u.w)) | |
606 | jit_movr_d(_F0 - v->u.w, u); | |
607 | else | |
608 | jit_stxi_d(v->u.w, JIT_FP, u); | |
609 | jit_dec_synth(); | |
610 | } | |
611 | ||
612 | void | |
613 | _jit_putargi_d(jit_state_t *_jit, jit_float64_t u, jit_node_t *v) | |
614 | { | |
615 | jit_int32_t regno; | |
616 | assert(v->code == jit_code_arg_d); | |
617 | jit_inc_synth_dp(putargi_d, u, v); | |
618 | if (jit_arg_f_reg_p(v->u.w)) | |
619 | jit_movi_d(_F0 - v->u.w, u); | |
620 | else { | |
621 | regno = jit_get_reg(jit_class_fpr); | |
622 | jit_movi_d(regno, u); | |
623 | jit_stxi_d(v->u.w, JIT_FP, regno); | |
624 | jit_unget_reg(regno); | |
625 | } | |
626 | jit_dec_synth(); | |
627 | } | |
628 | ||
629 | void | |
630 | _jit_pushargr(jit_state_t *_jit, jit_int32_t u) | |
631 | { | |
632 | assert(_jitc->function); | |
633 | jit_inc_synth_w(pushargr, u); | |
634 | jit_link_prepare(); | |
635 | if (jit_arg_reg_p(_jitc->function->call.argi)) { | |
636 | jit_movr(_R2 - _jitc->function->call.argi, u); | |
637 | ++_jitc->function->call.argi; | |
638 | } | |
639 | else { | |
640 | jit_stxi(_jitc->function->call.size + stack_framesize, JIT_SP, u); | |
641 | _jitc->function->call.size += sizeof(jit_word_t); | |
642 | } | |
643 | jit_dec_synth(); | |
644 | } | |
645 | ||
646 | void | |
647 | _jit_pushargi(jit_state_t *_jit, jit_word_t u) | |
648 | { | |
649 | jit_int32_t regno; | |
650 | assert(_jitc->function); | |
651 | jit_inc_synth_w(pushargi, u); | |
652 | jit_link_prepare(); | |
653 | if (jit_arg_reg_p(_jitc->function->call.argi)) { | |
654 | jit_movi(_R2 - _jitc->function->call.argi, u); | |
655 | ++_jitc->function->call.argi; | |
656 | } | |
657 | else { | |
658 | regno = jit_get_reg(jit_class_gpr); | |
659 | jit_movi(regno, u); | |
660 | jit_stxi(_jitc->function->call.size + stack_framesize, JIT_SP, regno); | |
661 | jit_unget_reg(regno); | |
662 | _jitc->function->call.size += sizeof(jit_word_t); | |
663 | } | |
664 | jit_dec_synth(); | |
665 | } | |
666 | ||
667 | void | |
668 | _jit_pushargr_f(jit_state_t *_jit, jit_int32_t u) | |
669 | { | |
670 | assert(_jitc->function); | |
671 | jit_inc_synth_w(pushargr_f, u); | |
672 | jit_link_prepare(); | |
673 | if (jit_arg_f_reg_p(_jitc->function->call.argf)) { | |
674 | jit_movr_f(_F0 - _jitc->function->call.argf, u); | |
675 | ++_jitc->function->call.argf; | |
676 | } | |
677 | else { | |
678 | jit_stxi_f(_jitc->function->call.size + stack_framesize | |
679 | #if __WORDSIZE == 64 | |
680 | + (__WORDSIZE >> 3) - sizeof(jit_float32_t) | |
681 | #endif | |
682 | , JIT_SP, u); | |
683 | _jitc->function->call.size += sizeof(jit_word_t); | |
684 | } | |
685 | jit_dec_synth(); | |
686 | } | |
687 | ||
688 | void | |
689 | _jit_pushargi_f(jit_state_t *_jit, jit_float32_t u) | |
690 | { | |
691 | jit_int32_t regno; | |
692 | assert(_jitc->function); | |
693 | jit_inc_synth_f(pushargi_f, u); | |
694 | jit_link_prepare(); | |
695 | if (jit_arg_f_reg_p(_jitc->function->call.argf)) { | |
696 | jit_movi_f(_F0 - _jitc->function->call.argf, u); | |
697 | ++_jitc->function->call.argf; | |
698 | } | |
699 | else { | |
700 | regno = jit_get_reg(jit_class_fpr); | |
701 | jit_movi_f(regno, u); | |
702 | jit_stxi_f(_jitc->function->call.size + stack_framesize | |
703 | #if __WORDSIZE == 64 | |
704 | + (__WORDSIZE >> 3) - sizeof(jit_float32_t) | |
705 | #endif | |
706 | , JIT_SP, regno); | |
707 | jit_unget_reg(regno); | |
708 | _jitc->function->call.size += sizeof(jit_word_t); | |
709 | } | |
710 | jit_dec_synth(); | |
711 | } | |
712 | ||
713 | void | |
714 | _jit_pushargr_d(jit_state_t *_jit, jit_int32_t u) | |
715 | { | |
716 | assert(_jitc->function); | |
717 | jit_inc_synth_w(pushargr_d, u); | |
718 | jit_link_prepare(); | |
719 | if (jit_arg_f_reg_p(_jitc->function->call.argf)) { | |
720 | jit_movr_d(_F0 - _jitc->function->call.argf, u); | |
721 | ++_jitc->function->call.argf; | |
722 | } | |
723 | else { | |
724 | jit_stxi_d(_jitc->function->call.size + stack_framesize, JIT_SP, u); | |
725 | _jitc->function->call.size += sizeof(jit_float64_t); | |
726 | } | |
727 | jit_dec_synth(); | |
728 | } | |
729 | ||
730 | void | |
731 | _jit_pushargi_d(jit_state_t *_jit, jit_float64_t u) | |
732 | { | |
733 | jit_int32_t regno; | |
734 | assert(_jitc->function); | |
735 | jit_inc_synth_d(pushargi_d, u); | |
736 | jit_link_prepare(); | |
737 | if (jit_arg_f_reg_p(_jitc->function->call.argf)) { | |
738 | jit_movi_d(_F0 - _jitc->function->call.argf, u); | |
739 | ++_jitc->function->call.argf; | |
740 | } | |
741 | else { | |
742 | regno = jit_get_reg(jit_class_fpr); | |
743 | jit_movi_d(regno, u); | |
744 | jit_stxi_d(_jitc->function->call.size + stack_framesize, JIT_SP, regno); | |
745 | jit_unget_reg(regno); | |
746 | _jitc->function->call.size += sizeof(jit_float64_t); | |
747 | } | |
748 | jit_dec_synth(); | |
749 | } | |
750 | ||
751 | jit_bool_t | |
752 | _jit_regarg_p(jit_state_t *_jit, jit_node_t *node, jit_int32_t regno) | |
753 | { | |
754 | jit_int32_t spec; | |
755 | spec = jit_class(_rvs[regno].spec); | |
756 | if (spec & jit_class_arg) { | |
757 | regno = _R2 - regno; | |
758 | if (regno >= 0 && regno < node->v.w) | |
759 | return (1); | |
760 | if (spec & jit_class_fpr) { | |
761 | regno = _F0 - regno; | |
762 | if (regno >= 0 && regno < node->w.w) | |
763 | return (1); | |
764 | } | |
765 | } | |
766 | return (0); | |
767 | } | |
768 | ||
769 | void | |
770 | _jit_finishr(jit_state_t *_jit, jit_int32_t r0) | |
771 | { | |
772 | jit_node_t *call; | |
773 | assert(_jitc->function); | |
774 | jit_inc_synth_w(finishr, r0); | |
775 | if (_jitc->function->self.alen < _jitc->function->call.size) | |
776 | _jitc->function->self.alen = _jitc->function->call.size; | |
777 | call = jit_callr(r0); | |
778 | call->v.w = _jitc->function->call.argi; | |
779 | call->w.w = _jitc->function->call.argf; | |
780 | _jitc->function->call.argi = _jitc->function->call.argf = | |
781 | _jitc->function->call.size = 0; | |
782 | _jitc->prepare = 0; | |
783 | jit_dec_synth(); | |
784 | } | |
785 | ||
786 | jit_node_t * | |
787 | _jit_finishi(jit_state_t *_jit, jit_pointer_t i0) | |
788 | { | |
789 | jit_node_t *node; | |
790 | assert(_jitc->function); | |
791 | jit_inc_synth_w(finishi, (jit_word_t)i0); | |
792 | if (_jitc->function->self.alen < _jitc->function->call.size) | |
793 | _jitc->function->self.alen = _jitc->function->call.size; | |
794 | node = jit_calli(i0); | |
795 | node->v.w = _jitc->function->call.argi; | |
796 | node->w.w = _jitc->function->call.argf; | |
797 | _jitc->function->call.argi = _jitc->function->call.argf = | |
798 | _jitc->function->call.size = 0; | |
799 | _jitc->prepare = 0; | |
800 | jit_dec_synth(); | |
801 | return (node); | |
802 | } | |
803 | ||
804 | void | |
805 | _jit_retval_c(jit_state_t *_jit, jit_int32_t r0) | |
806 | { | |
807 | jit_inc_synth_w(retval_c, r0); | |
808 | jit_extr_c(r0, JIT_RET); | |
809 | jit_dec_synth(); | |
810 | } | |
811 | ||
812 | void | |
813 | _jit_retval_uc(jit_state_t *_jit, jit_int32_t r0) | |
814 | { | |
815 | jit_inc_synth_w(retval_uc, r0); | |
816 | jit_extr_uc(r0, JIT_RET); | |
817 | jit_dec_synth(); | |
818 | } | |
819 | ||
820 | void | |
821 | _jit_retval_s(jit_state_t *_jit, jit_int32_t r0) | |
822 | { | |
823 | jit_inc_synth_w(retval_s, r0); | |
824 | jit_extr_s(r0, JIT_RET); | |
825 | jit_dec_synth(); | |
826 | } | |
827 | ||
828 | void | |
829 | _jit_retval_us(jit_state_t *_jit, jit_int32_t r0) | |
830 | { | |
831 | jit_inc_synth_w(retval_us, r0); | |
832 | jit_extr_us(r0, JIT_RET); | |
833 | jit_dec_synth(); | |
834 | } | |
835 | ||
836 | void | |
837 | _jit_retval_i(jit_state_t *_jit, jit_int32_t r0) | |
838 | { | |
839 | jit_inc_synth_w(retval_i, r0); | |
840 | #if __WORDSIZE == 64 | |
841 | jit_extr_i(r0, JIT_RET); | |
842 | #else | |
843 | jit_movr(r0, JIT_RET); | |
844 | #endif | |
845 | jit_dec_synth(); | |
846 | } | |
847 | ||
848 | #if __WORDSIZE == 64 | |
849 | void | |
850 | _jit_retval_ui(jit_state_t *_jit, jit_int32_t r0) | |
851 | { | |
852 | jit_inc_synth_w(retval_ui, r0); | |
853 | jit_extr_ui(r0, JIT_RET); | |
854 | jit_dec_synth(); | |
855 | } | |
856 | ||
857 | void | |
858 | _jit_retval_l(jit_state_t *_jit, jit_int32_t r0) | |
859 | { | |
860 | jit_inc_synth_w(retval_l, r0); | |
861 | jit_movr(r0, JIT_RET); | |
862 | jit_dec_synth(); | |
863 | } | |
864 | #endif | |
865 | ||
866 | void | |
867 | _jit_retval_f(jit_state_t *_jit, jit_int32_t r0) | |
868 | { | |
869 | jit_inc_synth_w(retval_f, r0); | |
870 | jit_movr_f(r0, JIT_FRET); | |
871 | jit_dec_synth(); | |
872 | } | |
873 | ||
874 | void | |
875 | _jit_retval_d(jit_state_t *_jit, jit_int32_t r0) | |
876 | { | |
877 | jit_inc_synth_w(retval_d, r0); | |
878 | jit_movr_d(r0, JIT_FRET); | |
879 | jit_dec_synth(); | |
880 | } | |
881 | ||
882 | jit_pointer_t | |
883 | _emit_code(jit_state_t *_jit) | |
884 | { | |
885 | jit_node_t *node; | |
886 | jit_node_t *temp; | |
887 | jit_word_t word; | |
888 | jit_int32_t value; | |
889 | jit_int32_t offset; | |
890 | struct { | |
891 | jit_node_t *node; | |
892 | jit_word_t word; | |
893 | #if DEVEL_DISASSEMBLER | |
894 | jit_word_t prevw; | |
895 | #endif | |
896 | jit_int32_t patch_offset; | |
897 | } undo; | |
898 | #if DEVEL_DISASSEMBLER | |
899 | jit_word_t prevw; | |
900 | #endif | |
901 | ||
902 | _jitc->function = NULL; | |
903 | ||
904 | jit_reglive_setup(); | |
905 | ||
906 | undo.word = 0; | |
907 | undo.node = NULL; | |
908 | undo.patch_offset = 0; | |
909 | ||
910 | #define assert_data(node) /**/ | |
911 | #define case_rr(name, type) \ | |
912 | case jit_code_##name##r##type: \ | |
913 | name##r##type(rn(node->u.w), rn(node->v.w)); \ | |
914 | break | |
915 | #define case_rw(name, type) \ | |
916 | case jit_code_##name##i##type: \ | |
917 | name##i##type(rn(node->u.w), node->v.w); \ | |
918 | break | |
919 | #define case_wr(name, type) \ | |
920 | case jit_code_##name##i##type: \ | |
921 | name##i##type(node->u.w, rn(node->v.w)); \ | |
922 | break | |
923 | #define case_rrr(name, type) \ | |
924 | case jit_code_##name##r##type: \ | |
925 | name##r##type(rn(node->u.w), \ | |
926 | rn(node->v.w), rn(node->w.w)); \ | |
927 | break | |
928 | #define case_rrrr(name, type) \ | |
929 | case jit_code_##name##r##type: \ | |
930 | name##r##type(rn(node->u.q.l), rn(node->u.q.h), \ | |
931 | rn(node->v.w), rn(node->w.w)); \ | |
932 | break | |
933 | #define case_rrw(name, type) \ | |
934 | case jit_code_##name##i##type: \ | |
935 | name##i##type(rn(node->u.w), rn(node->v.w), node->w.w); \ | |
936 | break | |
937 | #define case_rrrw(name, type) \ | |
938 | case jit_code_##name##i##type: \ | |
939 | name##i##type(rn(node->u.q.l), rn(node->u.q.h), \ | |
940 | rn(node->v.w), node->w.w); \ | |
941 | break | |
942 | #define case_rrf(name) \ | |
943 | case jit_code_##name##i_f: \ | |
944 | assert_data(node); \ | |
945 | name##i_f(rn(node->u.w), rn(node->v.w), \ | |
946 | (jit_float32_t *)node->w.n->u.w); \ | |
947 | break | |
948 | #define case_rrd(name) \ | |
949 | case jit_code_##name##i_d: \ | |
950 | assert_data(node); \ | |
951 | name##i_d(rn(node->u.w), rn(node->v.w), \ | |
952 | (jit_float64_t *)node->w.n->u.w); \ | |
953 | break | |
954 | #define case_wrr(name, type) \ | |
955 | case jit_code_##name##i##type: \ | |
956 | name##i##type(node->u.w, rn(node->v.w), rn(node->w.w)); \ | |
957 | break | |
958 | #define case_brr(name, type) \ | |
959 | case jit_code_##name##r##type: \ | |
960 | temp = node->u.n; \ | |
961 | assert(temp->code == jit_code_label || \ | |
962 | temp->code == jit_code_epilog); \ | |
963 | if (temp->flag & jit_flag_patch) \ | |
964 | name##r##type(temp->u.w, rn(node->v.w), \ | |
965 | rn(node->w.w)); \ | |
966 | else { \ | |
967 | word = name##r##type##_p(_jit->pc.w, \ | |
968 | rn(node->v.w), \ | |
969 | rn(node->w.w)); \ | |
970 | patch(word, node); \ | |
971 | } \ | |
972 | break | |
973 | #define case_brw(name, type) \ | |
974 | case jit_code_##name##i##type: \ | |
975 | temp = node->u.n; \ | |
976 | assert(temp->code == jit_code_label || \ | |
977 | temp->code == jit_code_epilog); \ | |
978 | if (temp->flag & jit_flag_patch) \ | |
979 | name##i##type(temp->u.w, \ | |
980 | rn(node->v.w), node->w.w); \ | |
981 | else { \ | |
982 | word = name##i##type##_p(_jit->pc.w, \ | |
983 | rn(node->v.w), node->w.w); \ | |
984 | patch(word, node); \ | |
985 | } \ | |
986 | break; | |
987 | #define case_brf(name) \ | |
988 | case jit_code_##name##i_f: \ | |
989 | temp = node->u.n; \ | |
990 | assert(temp->code == jit_code_label || \ | |
991 | temp->code == jit_code_epilog); \ | |
992 | if (temp->flag & jit_flag_patch) \ | |
993 | name##i_f(temp->u.w, rn(node->v.w), \ | |
994 | (jit_float32_t *)node->w.n->u.w); \ | |
995 | else { \ | |
996 | word = name##i_f_p(_jit->pc.w, rn(node->v.w), \ | |
997 | (jit_float32_t *)node->w.n->u.w);\ | |
998 | patch(word, node); \ | |
999 | } \ | |
1000 | break | |
1001 | #define case_brd(name) \ | |
1002 | case jit_code_##name##i_d: \ | |
1003 | temp = node->u.n; \ | |
1004 | assert(temp->code == jit_code_label || \ | |
1005 | temp->code == jit_code_epilog); \ | |
1006 | if (temp->flag & jit_flag_patch) \ | |
1007 | name##i_d(temp->u.w, rn(node->v.w), \ | |
1008 | (jit_float64_t *)node->w.n->u.w); \ | |
1009 | else { \ | |
1010 | word = name##i_d_p(_jit->pc.w, rn(node->v.w), \ | |
1011 | (jit_float64_t *)node->w.n->u.w);\ | |
1012 | patch(word, node); \ | |
1013 | } \ | |
1014 | break | |
1015 | #if DEVEL_DISASSEMBLER | |
1016 | prevw = _jit->pc.w; | |
1017 | #endif | |
1018 | for (node = _jitc->head; node; node = node->next) { | |
1019 | if (_jit->pc.uc >= _jitc->code.end) | |
1020 | return (NULL); | |
1021 | ||
1022 | #if DEVEL_DISASSEMBLER | |
1023 | node->offset = (jit_uword_t)_jit->pc.w - (jit_uword_t)prevw; | |
1024 | prevw = _jit->pc.w; | |
1025 | #endif | |
1026 | value = jit_classify(node->code); | |
1027 | jit_regarg_set(node, value); | |
1028 | switch (node->code) { | |
1029 | case jit_code_align: | |
1030 | assert(!(node->u.w & (node->u.w - 1)) && | |
1031 | node->u.w <= sizeof(jit_word_t)); | |
1032 | if (node->u.w == sizeof(jit_word_t) && | |
1033 | (word = _jit->pc.w & (sizeof(jit_word_t) - 1))) | |
1034 | nop(sizeof(jit_word_t) - word); | |
1035 | break; | |
1036 | case jit_code_note: case jit_code_name: | |
1037 | node->u.w = _jit->pc.w; | |
1038 | break; | |
1039 | case jit_code_label: | |
1040 | if ((node->link || (node->flag & jit_flag_use)) && | |
1041 | (word = _jit->pc.w & 3)) | |
1042 | nop(4 - word); | |
1043 | /* remember label is defined */ | |
1044 | node->flag |= jit_flag_patch; | |
1045 | node->u.w = _jit->pc.w; | |
1046 | break; | |
1047 | case_rrr(add,); | |
1048 | case_rrw(add,); | |
1049 | case_rrr(addc,); | |
1050 | case_rrw(addc,); | |
1051 | case_rrr(addx,); | |
1052 | case_rrw(addx,); | |
1053 | case_rrr(sub,); | |
1054 | case_rrw(sub,); | |
1055 | case_rrr(subc,); | |
1056 | case_rrw(subc,); | |
1057 | case_rrr(subx,); | |
1058 | case_rrw(subx,); | |
1059 | case_rrw(rsb,); | |
1060 | case_rrr(mul,); | |
1061 | case_rrw(mul,); | |
1062 | case_rrrr(qmul,); | |
1063 | case_rrrw(qmul,); | |
1064 | case_rrrr(qmul, _u); | |
1065 | case_rrrw(qmul, _u); | |
1066 | case_rrr(div,); | |
1067 | case_rrw(div,); | |
1068 | case_rrr(div, _u); | |
1069 | case_rrw(div, _u); | |
1070 | case_rrr(rem,); | |
1071 | case_rrw(rem,); | |
1072 | case_rrr(rem, _u); | |
1073 | case_rrw(rem, _u); | |
1074 | case_rrrr(qdiv,); | |
1075 | case_rrrw(qdiv,); | |
1076 | case_rrrr(qdiv, _u); | |
1077 | case_rrrw(qdiv, _u); | |
1078 | case_rrr(lsh,); | |
1079 | case_rrw(lsh,); | |
1080 | case_rrr(rsh,); | |
1081 | case_rrw(rsh,); | |
1082 | case_rrr(rsh, _u); | |
1083 | case_rrw(rsh, _u); | |
1084 | case_rr(neg,); | |
1085 | case_rr(com,); | |
1086 | case_rrr(and,); | |
1087 | case_rrw(and,); | |
1088 | case_rrr(or,); | |
1089 | case_rrw(or,); | |
1090 | case_rrr(xor,); | |
1091 | case_rrw(xor,); | |
1092 | case_rr(trunc, _f_i); | |
1093 | case_rr(trunc, _d_i); | |
1094 | #if __WORDSIZE == 64 | |
1095 | case_rr(trunc, _f_l); | |
1096 | case_rr(trunc, _d_l); | |
1097 | #endif | |
1098 | case_rr(ld, _c); | |
1099 | case_rw(ld, _c); | |
1100 | case_rr(ld, _uc); | |
1101 | case_rw(ld, _uc); | |
1102 | case_rr(ld, _s); | |
1103 | case_rw(ld, _s); | |
1104 | case_rr(ld, _us); | |
1105 | case_rw(ld, _us); | |
1106 | case_rr(ld, _i); | |
1107 | case_rw(ld, _i); | |
1108 | #if __WORDSIZE == 64 | |
1109 | case_rr(ld, _ui); | |
1110 | case_rw(ld, _ui); | |
1111 | case_rr(ld, _l); | |
1112 | case_rw(ld, _l); | |
1113 | #endif | |
1114 | case_rrr(ldx, _c); | |
1115 | case_rrw(ldx, _c); | |
1116 | case_rrr(ldx, _uc); | |
1117 | case_rrw(ldx, _uc); | |
1118 | case_rrr(ldx, _s); | |
1119 | case_rrw(ldx, _s); | |
1120 | case_rrr(ldx, _us); | |
1121 | case_rrw(ldx, _us); | |
1122 | case_rrr(ldx, _i); | |
1123 | case_rrw(ldx, _i); | |
1124 | #if __WORDSIZE == 64 | |
1125 | case_rrr(ldx, _ui); | |
1126 | case_rrw(ldx, _ui); | |
1127 | case_rrr(ldx, _l); | |
1128 | case_rrw(ldx, _l); | |
1129 | #endif | |
1130 | case_rr(st, _c); | |
1131 | case_wr(st, _c); | |
1132 | case_rr(st, _s); | |
1133 | case_wr(st, _s); | |
1134 | case_rr(st, _i); | |
1135 | case_wr(st, _i); | |
1136 | #if __WORDSIZE == 64 | |
1137 | case_rr(st, _l); | |
1138 | case_wr(st, _l); | |
1139 | #endif | |
1140 | case_rrr(stx, _c); | |
1141 | case_wrr(stx, _c); | |
1142 | case_rrr(stx, _s); | |
1143 | case_wrr(stx, _s); | |
1144 | case_rrr(stx, _i); | |
1145 | case_wrr(stx, _i); | |
1146 | #if __WORDSIZE == 64 | |
1147 | case_rrr(stx, _l); | |
1148 | case_wrr(stx, _l); | |
1149 | #endif | |
1150 | case_rr(hton, _us); | |
1151 | case_rr(hton, _ui); | |
1152 | #if __WORDSIZE == 64 | |
1153 | case_rr(hton, _ul); | |
1154 | #endif | |
1155 | case_rr(ext, _c); | |
1156 | case_rr(ext, _uc); | |
1157 | case_rr(ext, _s); | |
1158 | case_rr(ext, _us); | |
1159 | #if __WORDSIZE == 64 | |
1160 | case_rr(ext, _i); | |
1161 | case_rr(ext, _ui); | |
1162 | #endif | |
1163 | case_rr(mov,); | |
1164 | case jit_code_movi: | |
1165 | if (node->flag & jit_flag_node) { | |
1166 | temp = node->v.n; | |
1167 | if (temp->code == jit_code_data || | |
1168 | (temp->code == jit_code_label && | |
1169 | (temp->flag & jit_flag_patch))) | |
1170 | movi(rn(node->u.w), temp->u.w); | |
1171 | else { | |
1172 | assert(temp->code == jit_code_label || | |
1173 | temp->code == jit_code_epilog); | |
1174 | word = movi_p(rn(node->u.w), temp->u.w); | |
1175 | patch(word, node); | |
1176 | } | |
1177 | } | |
1178 | else | |
1179 | movi(rn(node->u.w), node->v.w); | |
1180 | break; | |
1181 | case_rrr(lt,); | |
1182 | case_rrw(lt,); | |
1183 | case_rrr(lt, _u); | |
1184 | case_rrw(lt, _u); | |
1185 | case_rrr(le,); | |
1186 | case_rrw(le,); | |
1187 | case_rrr(le, _u); | |
1188 | case_rrw(le, _u); | |
1189 | case_rrr(eq,); | |
1190 | case_rrw(eq,); | |
1191 | case_rrr(ge,); | |
1192 | case_rrw(ge,); | |
1193 | case_rrr(ge, _u); | |
1194 | case_rrw(ge, _u); | |
1195 | case_rrr(gt,); | |
1196 | case_rrw(gt,); | |
1197 | case_rrr(gt, _u); | |
1198 | case_rrw(gt, _u); | |
1199 | case_rrr(ne,); | |
1200 | case_rrw(ne,); | |
1201 | case_brr(blt,); | |
1202 | case_brw(blt,); | |
1203 | case_brr(blt, _u); | |
1204 | case_brw(blt, _u); | |
1205 | case_brr(ble,); | |
1206 | case_brw(ble,); | |
1207 | case_brr(ble, _u); | |
1208 | case_brw(ble, _u); | |
1209 | case_brr(beq,); | |
1210 | case_brw(beq,); | |
1211 | case_brr(bge,); | |
1212 | case_brw(bge,); | |
1213 | case_brr(bge, _u); | |
1214 | case_brw(bge, _u); | |
1215 | case_brr(bgt,); | |
1216 | case_brw(bgt,); | |
1217 | case_brr(bgt, _u); | |
1218 | case_brw(bgt, _u); | |
1219 | case_brr(bne,); | |
1220 | case_brw(bne,); | |
1221 | case_brr(boadd,); | |
1222 | case_brw(boadd,); | |
1223 | case_brr(boadd, _u); | |
1224 | case_brw(boadd, _u); | |
1225 | case_brr(bxadd,); | |
1226 | case_brw(bxadd,); | |
1227 | case_brr(bxadd, _u); | |
1228 | case_brw(bxadd, _u); | |
1229 | case_brr(bosub,); | |
1230 | case_brw(bosub,); | |
1231 | case_brr(bosub, _u); | |
1232 | case_brw(bosub, _u); | |
1233 | case_brr(bxsub,); | |
1234 | case_brw(bxsub,); | |
1235 | case_brr(bxsub, _u); | |
1236 | case_brw(bxsub, _u); | |
1237 | case_brr(bms,); | |
1238 | case_brw(bms,); | |
1239 | case_brr(bmc,); | |
1240 | case_brw(bmc,); | |
1241 | case_rrr(add, _f); | |
1242 | case_rrf(add); | |
1243 | case_rrr(sub, _f); | |
1244 | case_rrf(sub); | |
1245 | case_rrf(rsb); | |
1246 | case_rrr(mul, _f); | |
1247 | case_rrf(mul); | |
1248 | case_rrr(div, _f); | |
1249 | case_rrf(div); | |
1250 | case_rr(abs, _f); | |
1251 | case_rr(neg, _f); | |
1252 | case_rr(sqrt, _f); | |
1253 | case_rr(ext, _f); | |
1254 | case_rr(ld, _f); | |
1255 | case_rw(ld, _f); | |
1256 | case_rrr(ldx, _f); | |
1257 | case_rrw(ldx, _f); | |
1258 | case_rr(st, _f); | |
1259 | case_wr(st, _f); | |
1260 | case_rrr(stx, _f); | |
1261 | case_wrr(stx, _f); | |
1262 | case_rr(mov, _f); | |
1263 | case jit_code_movi_f: | |
1264 | assert_data(node); | |
1265 | movi_f(rn(node->u.w), (jit_float32_t *)node->v.n->u.w); | |
1266 | break; | |
1267 | case_rr(ext, _d_f); | |
1268 | case_rrr(lt, _f); | |
1269 | case_rrf(lt); | |
1270 | case_rrr(le, _f); | |
1271 | case_rrf(le); | |
1272 | case_rrr(eq, _f); | |
1273 | case_rrf(eq); | |
1274 | case_rrr(ge, _f); | |
1275 | case_rrf(ge); | |
1276 | case_rrr(gt, _f); | |
1277 | case_rrf(gt); | |
1278 | case_rrr(ne, _f); | |
1279 | case_rrf(ne); | |
1280 | case_rrr(unlt, _f); | |
1281 | case_rrf(unlt); | |
1282 | case_rrr(unle, _f); | |
1283 | case_rrf(unle); | |
1284 | case_rrr(uneq, _f); | |
1285 | case_rrf(uneq); | |
1286 | case_rrr(unge, _f); | |
1287 | case_rrf(unge); | |
1288 | case_rrr(ungt, _f); | |
1289 | case_rrf(ungt); | |
1290 | case_rrr(ltgt, _f); | |
1291 | case_rrf(ltgt); | |
1292 | case_rrr(ord, _f); | |
1293 | case_rrf(ord); | |
1294 | case_rrr(unord, _f); | |
1295 | case_rrf(unord); | |
1296 | case_brr(blt, _f); | |
1297 | case_brf(blt); | |
1298 | case_brr(ble, _f); | |
1299 | case_brf(ble); | |
1300 | case_brr(beq, _f); | |
1301 | case_brf(beq); | |
1302 | case_brr(bge, _f); | |
1303 | case_brf(bge); | |
1304 | case_brr(bgt, _f); | |
1305 | case_brf(bgt); | |
1306 | case_brr(bne, _f); | |
1307 | case_brf(bne); | |
1308 | case_brr(bunlt, _f); | |
1309 | case_brf(bunlt); | |
1310 | case_brr(bunle, _f); | |
1311 | case_brf(bunle); | |
1312 | case_brr(buneq, _f); | |
1313 | case_brf(buneq); | |
1314 | case_brr(bunge, _f); | |
1315 | case_brf(bunge); | |
1316 | case_brr(bungt, _f); | |
1317 | case_brf(bungt); | |
1318 | case_brr(bltgt, _f); | |
1319 | case_brf(bltgt); | |
1320 | case_brr(bord, _f); | |
1321 | case_brf(bord); | |
1322 | case_brr(bunord, _f); | |
1323 | case_brf(bunord); | |
1324 | case_rrr(add, _d); | |
1325 | case_rrd(add); | |
1326 | case_rrr(sub, _d); | |
1327 | case_rrd(sub); | |
1328 | case_rrd(rsb); | |
1329 | case_rrr(mul, _d); | |
1330 | case_rrd(mul); | |
1331 | case_rrr(div, _d); | |
1332 | case_rrd(div); | |
1333 | case_rr(abs, _d); | |
1334 | case_rr(neg, _d); | |
1335 | case_rr(sqrt, _d); | |
1336 | case_rr(ext, _d); | |
1337 | case_rr(ld, _d); | |
1338 | case_rw(ld, _d); | |
1339 | case_rrr(ldx, _d); | |
1340 | case_rrw(ldx, _d); | |
1341 | case_rr(st, _d); | |
1342 | case_wr(st, _d); | |
1343 | case_rrr(stx, _d); | |
1344 | case_wrr(stx, _d); | |
1345 | case_rr(mov, _d); | |
1346 | case jit_code_movi_d: | |
1347 | assert_data(node); | |
1348 | movi_d(rn(node->u.w), (jit_float64_t *)node->v.n->u.w); | |
1349 | break; | |
1350 | case_rr(ext, _f_d); | |
1351 | case_rrr(lt, _d); | |
1352 | case_rrd(lt); | |
1353 | case_rrr(le, _d); | |
1354 | case_rrd(le); | |
1355 | case_rrr(eq, _d); | |
1356 | case_rrd(eq); | |
1357 | case_rrr(ge, _d); | |
1358 | case_rrd(ge); | |
1359 | case_rrr(gt, _d); | |
1360 | case_rrd(gt); | |
1361 | case_rrr(ne, _d); | |
1362 | case_rrd(ne); | |
1363 | case_rrr(unlt, _d); | |
1364 | case_rrd(unlt); | |
1365 | case_rrr(unle, _d); | |
1366 | case_rrd(unle); | |
1367 | case_rrr(uneq, _d); | |
1368 | case_rrd(uneq); | |
1369 | case_rrr(unge, _d); | |
1370 | case_rrd(unge); | |
1371 | case_rrr(ungt, _d); | |
1372 | case_rrd(ungt); | |
1373 | case_rrr(ltgt, _d); | |
1374 | case_rrd(ltgt); | |
1375 | case_rrr(ord, _d); | |
1376 | case_rrd(ord); | |
1377 | case_rrr(unord, _d); | |
1378 | case_rrd(unord); | |
1379 | case_brr(blt, _d); | |
1380 | case_brd(blt); | |
1381 | case_brr(ble, _d); | |
1382 | case_brd(ble); | |
1383 | case_brr(beq, _d); | |
1384 | case_brd(beq); | |
1385 | case_brr(bge, _d); | |
1386 | case_brd(bge); | |
1387 | case_brr(bgt, _d); | |
1388 | case_brd(bgt); | |
1389 | case_brr(bne, _d); | |
1390 | case_brd(bne); | |
1391 | case_brr(bunlt, _d); | |
1392 | case_brd(bunlt); | |
1393 | case_brr(bunle, _d); | |
1394 | case_brd(bunle); | |
1395 | case_brr(buneq, _d); | |
1396 | case_brd(buneq); | |
1397 | case_brr(bunge, _d); | |
1398 | case_brd(bunge); | |
1399 | case_brr(bungt, _d); | |
1400 | case_brd(bungt); | |
1401 | case_brr(bltgt, _d); | |
1402 | case_brd(bltgt); | |
1403 | case_brr(bord, _d); | |
1404 | case_brd(bord); | |
1405 | case_brr(bunord, _d); | |
1406 | case_brd(bunord); | |
1407 | case jit_code_jmpr: | |
1408 | jmpr(rn(node->u.w)); | |
1409 | break; | |
1410 | case jit_code_jmpi: | |
1411 | if (node->flag & jit_flag_node) { | |
1412 | temp = node->u.n; | |
1413 | assert(temp->code == jit_code_label || | |
1414 | temp->code == jit_code_epilog); | |
1415 | if (temp->flag & jit_flag_patch) | |
1416 | jmpi(temp->u.w); | |
1417 | else { | |
1418 | word = jmpi_p(_jit->pc.w); | |
1419 | patch(word, node); | |
1420 | } | |
1421 | } | |
1422 | else | |
1423 | jmpi(node->u.w); | |
1424 | break; | |
1425 | case jit_code_callr: | |
1426 | callr(rn(node->u.w)); | |
1427 | break; | |
1428 | case jit_code_calli: | |
1429 | if (node->flag & jit_flag_node) { | |
1430 | temp = node->u.n; | |
1431 | assert(temp->code == jit_code_label || | |
1432 | temp->code == jit_code_epilog); | |
1433 | if (temp->flag & jit_flag_patch) | |
1434 | calli(temp->u.w); | |
1435 | else { | |
1436 | word = calli_p(_jit->pc.w); | |
1437 | patch(word, node); | |
1438 | } | |
1439 | } | |
1440 | else | |
1441 | calli(node->u.w); | |
1442 | break; | |
1443 | case jit_code_prolog: | |
1444 | _jitc->function = _jitc->functions.ptr + node->w.w; | |
1445 | undo.node = node; | |
1446 | undo.word = _jit->pc.w; | |
1447 | #if DEVEL_DISASSEMBLER | |
1448 | undo.prevw = prevw; | |
1449 | #endif | |
1450 | undo.patch_offset = _jitc->patches.offset; | |
1451 | restart_function: | |
1452 | _jitc->again = 0; | |
1453 | prolog(node); | |
1454 | break; | |
1455 | case jit_code_epilog: | |
1456 | assert(_jitc->function == _jitc->functions.ptr + node->w.w); | |
1457 | if (_jitc->again) { | |
1458 | for (temp = undo.node->next; | |
1459 | temp != node; temp = temp->next) { | |
1460 | if (temp->code == jit_code_label || | |
1461 | temp->code == jit_code_epilog) | |
1462 | temp->flag &= ~jit_flag_patch; | |
1463 | } | |
1464 | temp->flag &= ~jit_flag_patch; | |
1465 | node = undo.node; | |
1466 | _jit->pc.w = undo.word; | |
1467 | #if DEVEL_DISASSEMBLER | |
1468 | prevw = undo.prevw; | |
1469 | #endif | |
1470 | _jitc->patches.offset = undo.patch_offset; | |
1471 | goto restart_function; | |
1472 | } | |
1473 | if (node->link && (word = _jit->pc.w & 3)) | |
1474 | nop(4 - word); | |
1475 | /* remember label is defined */ | |
1476 | node->flag |= jit_flag_patch; | |
1477 | node->u.w = _jit->pc.w; | |
1478 | epilog(node); | |
1479 | _jitc->function = NULL; | |
1480 | break; | |
1481 | case jit_code_va_start: | |
1482 | vastart(rn(node->u.w)); | |
1483 | break; | |
1484 | case jit_code_va_arg: | |
1485 | vaarg(rn(node->u.w), rn(node->v.w)); | |
1486 | break; | |
1487 | case jit_code_va_arg_d: | |
1488 | vaarg_d(rn(node->u.w), rn(node->v.w)); | |
1489 | break; | |
1490 | case jit_code_live: case jit_code_ellipsis: | |
1491 | case jit_code_va_push: | |
1492 | case jit_code_allocai: case jit_code_allocar: | |
1493 | case jit_code_arg: | |
1494 | case jit_code_arg_f: case jit_code_arg_d: | |
1495 | case jit_code_va_end: | |
1496 | case jit_code_ret: | |
1497 | case jit_code_retr: case jit_code_reti: | |
1498 | case jit_code_retr_f: case jit_code_reti_f: | |
1499 | case jit_code_retr_d: case jit_code_reti_d: | |
1500 | case jit_code_getarg_c: case jit_code_getarg_uc: | |
1501 | case jit_code_getarg_s: case jit_code_getarg_us: | |
1502 | case jit_code_getarg_i: | |
1503 | #if __WORDSIZE == 64 | |
1504 | case jit_code_getarg_ui: case jit_code_getarg_l: | |
1505 | #endif | |
1506 | case jit_code_getarg_f: case jit_code_getarg_d: | |
1507 | case jit_code_putargr: case jit_code_putargi: | |
1508 | case jit_code_putargr_f: case jit_code_putargi_f: | |
1509 | case jit_code_putargr_d: case jit_code_putargi_d: | |
1510 | case jit_code_pushargr: case jit_code_pushargi: | |
1511 | case jit_code_pushargr_f: case jit_code_pushargi_f: | |
1512 | case jit_code_pushargr_d: case jit_code_pushargi_d: | |
1513 | case jit_code_retval_c: case jit_code_retval_uc: | |
1514 | case jit_code_retval_s: case jit_code_retval_us: | |
1515 | case jit_code_retval_i: | |
1516 | #if __WORDSIZE == 64 | |
1517 | case jit_code_retval_ui: case jit_code_retval_l: | |
1518 | #endif | |
1519 | case jit_code_retval_f: case jit_code_retval_d: | |
1520 | case jit_code_prepare: | |
1521 | case jit_code_finishr: case jit_code_finishi: | |
1522 | break; | |
1523 | default: | |
1524 | abort(); | |
1525 | } | |
1526 | jit_regarg_clr(node, value); | |
1527 | assert(_jitc->regarg == 0 && _jitc->synth == 0); | |
1528 | /* update register live state */ | |
1529 | jit_reglive(node); | |
1530 | } | |
1531 | #undef case_brw | |
1532 | #undef case_brr | |
1533 | #undef case_wrr | |
1534 | #undef case_rrw | |
1535 | #undef case_rrr | |
1536 | #undef case_wr | |
1537 | #undef case_rw | |
1538 | #undef case_rr | |
1539 | ||
1540 | for (offset = 0; offset < _jitc->patches.offset; offset++) { | |
1541 | node = _jitc->patches.ptr[offset].node; | |
1542 | word = node->code == jit_code_movi ? node->v.n->u.w : node->u.n->u.w; | |
1543 | patch_at(_jitc->patches.ptr[offset].inst, word); | |
1544 | } | |
1545 | ||
1546 | jit_flush(_jit->code.ptr, _jit->pc.uc); | |
1547 | ||
1548 | return (_jit->code.ptr); | |
1549 | } | |
1550 | ||
1551 | #define CODE 1 | |
1552 | # include "jit_s390-cpu.c" | |
1553 | # include "jit_s390-fpu.c" | |
1554 | #undef CODE | |
1555 | ||
1556 | void | |
1557 | jit_flush(void *fptr, void *tptr) | |
1558 | { | |
1559 | #if defined(__GNUC__) | |
1560 | jit_word_t f, t, s; | |
1561 | ||
1562 | s = sysconf(_SC_PAGE_SIZE); | |
1563 | f = (jit_word_t)fptr & -s; | |
1564 | t = (((jit_word_t)tptr) + s - 1) & -s; | |
1565 | __clear_cache((void *)f, (void *)t); | |
1566 | #endif | |
1567 | } | |
1568 | ||
1569 | void | |
1570 | _emit_ldxi(jit_state_t *_jit, jit_gpr_t r0, jit_gpr_t r1, jit_word_t i0) | |
1571 | { | |
1572 | ldxi(rn(r0), rn(r1), i0); | |
1573 | } | |
1574 | ||
1575 | void | |
1576 | _emit_stxi(jit_state_t *_jit, jit_word_t i0, jit_gpr_t r0, jit_gpr_t r1) | |
1577 | { | |
1578 | stxi(i0, rn(r0), rn(r1)); | |
1579 | } | |
1580 | ||
1581 | void | |
1582 | _emit_ldxi_d(jit_state_t *_jit, jit_fpr_t r0, jit_gpr_t r1, jit_word_t i0) | |
1583 | { | |
1584 | ldxi_d(rn(r0), rn(r1), i0); | |
1585 | } | |
1586 | ||
1587 | void | |
1588 | _emit_stxi_d(jit_state_t *_jit, jit_word_t i0, jit_gpr_t r0, jit_fpr_t r1) | |
1589 | { | |
1590 | stxi_d(i0, rn(r0), rn(r1)); | |
1591 | } | |
1592 | ||
1593 | static jit_int32_t | |
1594 | _jit_get_reg_pair(jit_state_t *_jit) | |
1595 | { | |
1596 | jit_int32_t r1, r2; | |
1597 | /* Try to find a register pair for use with operations that | |
1598 | * require a odd based register pair. Search for the best | |
1599 | * match to avoid spills or at least a valid operation. | |
1600 | */ | |
1601 | ||
1602 | /* Try non callee save first */ | |
1603 | if (jit_reg_free_p(_R0) && jit_reg_free_p(_R1)) | |
1604 | r1 = _R0, r2 = _R1; | |
1605 | else if (jit_reg_free_p(_R2) && jit_reg_free_p(_R3)) | |
1606 | r1 = _R2, r2 = _R3; | |
1607 | else if (jit_reg_free_p(_R4) && jit_reg_free_p(_R5)) | |
1608 | r1 = _R4, r2 = _R5; | |
1609 | /* Try callee save registers */ | |
1610 | else if (jit_reg_free_p(_R10) && jit_reg_free_p(_R11)) | |
1611 | r1 = _R10, r2 = _R11; | |
1612 | else if (jit_reg_free_p(_R8) && jit_reg_free_p(_R9)) | |
1613 | r1 = _R8, r2 = _R9; | |
1614 | else if (jit_reg_free_p(_R6) && jit_reg_free_p(_R7)) | |
1615 | r1 = _R6, r2 = _R7; | |
1616 | ||
1617 | /* We *must* find a register pair */ | |
1618 | else if (jit_reg_free_if_spill_p(_R0) && jit_reg_free_if_spill_p(_R1)) | |
1619 | r1 = _R0, r2 = _R1; | |
1620 | else if (jit_reg_free_if_spill_p(_R2) && jit_reg_free_if_spill_p(_R3)) | |
1621 | r1 = _R2, r2 = _R3; | |
1622 | else if (jit_reg_free_if_spill_p(_R4) && jit_reg_free_if_spill_p(_R5)) | |
1623 | r1 = _R4, r2 = _R5; | |
1624 | else if (jit_reg_free_if_spill_p(_R10) && jit_reg_free_if_spill_p(_R11)) | |
1625 | r1 = _R10, r2 = _R11; | |
1626 | else if (jit_reg_free_if_spill_p(_R8) && jit_reg_free_if_spill_p(_R9)) | |
1627 | r1 = _R8, r2 = _R9; | |
1628 | else if (jit_reg_free_if_spill_p(_R6) && jit_reg_free_if_spill_p(_R7)) | |
1629 | r1 = _R6, r2 = _R7; | |
1630 | else | |
1631 | /* Do not jit_get_reg() all registers to avoid it */ | |
1632 | abort(); | |
1633 | ||
1634 | (void)jit_get_reg(jit_class_gpr|jit_class_named|r1); | |
1635 | (void)jit_get_reg(jit_class_gpr|jit_class_named|r2); | |
1636 | ||
1637 | return (r1); | |
1638 | } | |
1639 | ||
1640 | static void | |
1641 | _jit_unget_reg_pair(jit_state_t *_jit, jit_int32_t reg) | |
1642 | { | |
1643 | jit_int32_t r1, r2; | |
1644 | r1 = reg; | |
1645 | switch (r1) { | |
1646 | case _R0: r2 = _R1; break; | |
1647 | case _R2: r2 = _R3; break; | |
1648 | case _R4: r2 = _R5; break; | |
1649 | case _R6: r2 = _R7; break; | |
1650 | case _R8: r2 = _R9; break; | |
1651 | case _R10: r2 = _R11; break; | |
1652 | default: abort(); | |
1653 | } | |
1654 | jit_unget_reg(r1); | |
1655 | jit_unget_reg(r2); | |
1656 | } | |
1657 | ||
1658 | static jit_int32_t | |
1659 | _jit_get_reg_but_zero(jit_state_t *_jit, jit_int32_t flags) | |
1660 | { | |
1661 | jit_int32_t reg; | |
1662 | reg = jit_get_reg(jit_class_gpr); | |
1663 | if (reg == _R0) { | |
1664 | reg = jit_get_reg(jit_class_gpr|flags); | |
1665 | jit_unget_reg(_R0); | |
1666 | } | |
1667 | return (reg); | |
1668 | } | |
1669 | ||
1670 | static void | |
1671 | _patch(jit_state_t *_jit, jit_word_t instr, jit_node_t *node) | |
1672 | { | |
1673 | jit_int32_t flag; | |
1674 | ||
1675 | assert(node->flag & jit_flag_node); | |
1676 | if (node->code == jit_code_movi) | |
1677 | flag = node->v.n->flag; | |
1678 | else | |
1679 | flag = node->u.n->flag; | |
1680 | assert(!(flag & jit_flag_patch)); | |
1681 | if (_jitc->patches.offset >= _jitc->patches.length) { | |
1682 | jit_realloc((jit_pointer_t *)&_jitc->patches.ptr, | |
1683 | _jitc->patches.length * sizeof(jit_patch_t), | |
1684 | (_jitc->patches.length + 1024) * sizeof(jit_patch_t)); | |
1685 | _jitc->patches.length += 1024; | |
1686 | } | |
1687 | _jitc->patches.ptr[_jitc->patches.offset].inst = instr; | |
1688 | _jitc->patches.ptr[_jitc->patches.offset].node = node; | |
1689 | ++_jitc->patches.offset; | |
1690 | } |