2 * Copyright (C) 2013-2023 Free Software Foundation, Inc.
4 * This file is part of GNU lightning.
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)
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.
17 * Paulo Cesar Pereira de Andrade
20 #include <lightning.h>
21 #include <lightning/jit_private.h>
23 #define jit_arg_reg_p(i) ((i) >= 0 && (i) < 8)
24 #if __BYTE_ORDER == __LITTLE_ENDIAN
30 # define C_DISP 8 - sizeof(jit_int8_t)
31 # define S_DISP 8 - sizeof(jit_int16_t)
32 # define I_DISP 8 - sizeof(jit_int32_t)
33 # define F_DISP 8 - sizeof(jit_float32_t)
39 typedef jit_pointer_t jit_va_list_t;
44 #define patch(instr, node) _patch(_jit, instr, node)
45 static void _patch(jit_state_t*,jit_word_t,jit_node_t*);
49 extern void __clear_cache(void *, void *);
53 # include "jit_ia64-cpu.c"
54 # include "jit_ia64-fpu.c"
55 # include "jit_fallback.c"
62 jit_register_t _rvs[] = {
67 /* Used when a register cannot be allocated */
69 /* First scratch register */
71 /* Use r4 as lightning fp register */
73 /* Do not touch callee save registers not automatically spill/reloaded */
74 { rc(sav)|5, "r5" }, { rc(sav)|6, "r6" },
76 /* Do not touch return register for the sake of simplicity, besides
77 * having JIT_R0 being the same as JIT_RET usually an optimization */
79 /* Return registers, use as temporaries */
81 { rc(gpr)|10, "r10" }, { rc(gpr)|11, "r11" },
83 { rc(sav)|12, "r12" },
85 { rc(sav)|13, "r13" },
86 /* (Usually) assembly temporaries */
87 { rc(gpr)|31, "r31" }, { rc(gpr)|30, "r30" },
88 { rc(gpr)|29, "r29" }, { rc(gpr)|28, "r28" },
89 { rc(gpr)|27, "r27" }, { rc(gpr)|26, "r26" },
90 { rc(gpr)|25, "r25" }, { rc(gpr)|24, "r24" },
91 { rc(gpr)|23, "r23" }, { rc(gpr)|22, "r22" },
92 { rc(gpr)|21, "r21" }, { rc(gpr)|20, "r20" },
93 { rc(gpr)|19, "r19" }, { rc(gpr)|18, "r18" },
94 { rc(gpr)|17, "r17" }, { rc(gpr)|16, "r16" },
95 { rc(gpr)|15, "r15" }, { rc(gpr)|14, "r14" },
96 /* Do not allow allocating r32-r41 as temoraries for the sake of
97 * avoiding the need of extra complexity in the non backend code */
98 { rc(arg)|32, "r32" }, { rc(arg)|33, "r33" },
99 { rc(arg)|34, "r34" }, { rc(arg)|35, "r35" },
100 { rc(arg)|36, "r36" }, { rc(arg)|37, "r37" },
101 { rc(arg)|38, "r38" }, { rc(arg)|39, "r39" },
103 { rc(gpr)|rc(sav)|40, "r40" }, { rc(gpr)|rc(sav)|41, "r41" },
104 { rc(gpr)|rc(sav)|42, "r42" }, { rc(gpr)|rc(sav)|43, "r43" },
105 { rc(gpr)|rc(sav)|44, "r44" }, { rc(gpr)|rc(sav)|45, "r45" },
106 { rc(gpr)|rc(sav)|46, "r46" }, { rc(gpr)|rc(sav)|47, "r47" },
107 /* Temporaries/locals */
108 { rc(gpr)|rc(sav)|48, "r48" }, { rc(gpr)|rc(sav)|49, "r49" },
109 { rc(gpr)|rc(sav)|50, "r50" }, { rc(gpr)|rc(sav)|51, "r51" },
110 { rc(gpr)|rc(sav)|52, "r52" }, { rc(gpr)|rc(sav)|53, "r53" },
111 { rc(gpr)|rc(sav)|54, "r54" }, { rc(gpr)|rc(sav)|55, "r55" },
112 { rc(gpr)|rc(sav)|56, "r56" }, { rc(gpr)|rc(sav)|57, "r57" },
113 { rc(gpr)|rc(sav)|58, "r58" }, { rc(gpr)|rc(sav)|59, "r59" },
114 { rc(gpr)|rc(sav)|60, "r60" }, { rc(gpr)|rc(sav)|61, "r61" },
115 { rc(gpr)|rc(sav)|62, "r62" }, { rc(gpr)|rc(sav)|63, "r63" },
116 { rc(gpr)|rc(sav)|64, "r64" }, { rc(gpr)|rc(sav)|65, "r65" },
117 { rc(gpr)|rc(sav)|66, "r66" }, { rc(gpr)|rc(sav)|67, "r67" },
118 { rc(gpr)|rc(sav)|68, "r68" }, { rc(gpr)|rc(sav)|69, "r69" },
119 { rc(gpr)|rc(sav)|70, "r70" }, { rc(gpr)|rc(sav)|71, "r71" },
120 { rc(gpr)|rc(sav)|72, "r72" }, { rc(gpr)|rc(sav)|73, "r73" },
121 { rc(gpr)|rc(sav)|74, "r74" }, { rc(gpr)|rc(sav)|75, "r75" },
122 { rc(gpr)|rc(sav)|76, "r76" }, { rc(gpr)|rc(sav)|77, "r77" },
123 { rc(gpr)|rc(sav)|78, "r78" }, { rc(gpr)|rc(sav)|79, "r79" },
124 { rc(gpr)|rc(sav)|80, "r80" }, { rc(gpr)|rc(sav)|81, "r81" },
125 { rc(gpr)|rc(sav)|82, "r82" }, { rc(gpr)|rc(sav)|83, "r83" },
126 { rc(gpr)|rc(sav)|84, "r84" }, { rc(gpr)|rc(sav)|85, "r85" },
127 { rc(gpr)|rc(sav)|86, "r86" }, { rc(gpr)|rc(sav)|87, "r87" },
128 { rc(gpr)|rc(sav)|88, "r88" }, { rc(gpr)|rc(sav)|89, "r89" },
129 { rc(gpr)|rc(sav)|90, "r90" }, { rc(gpr)|rc(sav)|91, "r91" },
130 { rc(gpr)|rc(sav)|92, "r92" }, { rc(gpr)|rc(sav)|93, "r93" },
131 { rc(gpr)|rc(sav)|94, "r94" }, { rc(gpr)|rc(sav)|95, "r95" },
132 { rc(gpr)|rc(sav)|96, "r96" }, { rc(gpr)|rc(sav)|97, "r97" },
133 { rc(gpr)|rc(sav)|98, "r98" }, { rc(gpr)|rc(sav)|99, "r99" },
134 { rc(gpr)|rc(sav)|100,"r100"}, { rc(gpr)|rc(sav)|101, "r101"},
135 { rc(gpr)|rc(sav)|102,"r102"}, { rc(gpr)|rc(sav)|103, "r103"},
136 { rc(gpr)|rc(sav)|104,"r104"}, { rc(gpr)|rc(sav)|105, "r105"},
137 { rc(gpr)|rc(sav)|106,"r106"}, { rc(gpr)|rc(sav)|107, "r107"},
138 { rc(gpr)|rc(sav)|108,"r108"}, { rc(gpr)|rc(sav)|109, "r109"},
139 { rc(gpr)|rc(sav)|110,"r110"}, { rc(gpr)|rc(sav)|111, "r111"},
140 { rc(gpr)|rc(sav)|112,"r112"}, { rc(gpr)|rc(sav)|113, "r113"},
141 { rc(gpr)|rc(sav)|114,"r114"},
142 /* Do not enable these because no matter what, want 13 free registers,
143 * 5 for prolog and epilog and 8 for outgoing arguments */
145 { 116, "r116"}, { 117, "r117"},
146 { 118, "r118"}, { 119, "r119"},
147 { 120, "r120"}, { 121, "r121"},
148 { 122, "r122"}, { 123, "r123"},
149 { 124, "r124"}, { 125, "r125"},
150 { 126, "r126"}, { 127, "r127"},
155 /* Do not touch callee save registers not automatically spill/reloaded */
156 { rc(sav)|2, "f2" }, { rc(sav)|3, "f3" },
157 { rc(sav)|4, "f4" }, { rc(sav)|5, "f5" },
159 { rc(fpr)|6, "f6" }, { rc(fpr)|7, "f7" },
160 /* Do not allocate for the sake of simplification */
162 /* Scratch - Argument/return registers */
164 { rc(arg)|10, "f10" }, { rc(arg)|11, "f11" },
165 { rc(arg)|12, "f12" }, { rc(arg)|13, "f13" },
166 { rc(arg)|14, "f14" }, { rc(arg)|15, "f15" },
167 /* Do not touch callee save registers not automatically spill/reloaded */
168 { rc(sav)|16, "f16" }, { rc(sav)|17, "f17" },
169 { rc(sav)|18, "f18" }, { rc(sav)|19, "f19" },
170 { rc(sav)|20, "f20" }, { rc(sav)|21, "f21" },
171 { rc(sav)|22, "f22" }, { rc(sav)|23, "f23" },
172 { rc(sav)|24, "f24" }, { rc(sav)|25, "f25" },
173 { rc(sav)|26, "f26" }, { rc(sav)|27, "f27" },
174 { rc(sav)|28, "f28" }, { rc(sav)|29, "f29" },
175 { rc(sav)|30, "f30" }, { rc(sav)|31, "f31" },
177 { rc(fpr)|32, "f32" }, { rc(fpr)|33, "f33" },
178 { rc(fpr)|34, "f34" }, { rc(fpr)|35, "f35" },
179 { rc(fpr)|36, "f36" }, { rc(fpr)|37, "f37" },
180 { rc(fpr)|38, "f38" }, { rc(fpr)|39, "f39" },
181 { rc(fpr)|40, "f40" }, { rc(fpr)|41, "f41" },
182 { rc(fpr)|42, "f42" }, { rc(fpr)|43, "f43" },
183 { rc(fpr)|44, "f44" }, { rc(fpr)|45, "f45" },
184 { rc(fpr)|46, "f46" }, { rc(fpr)|47, "f47" },
185 { rc(fpr)|48, "f48" }, { rc(fpr)|49, "f49" },
186 { rc(fpr)|50, "f50" }, { rc(fpr)|51, "f51" },
187 { rc(fpr)|52, "f52" }, { rc(fpr)|53, "f53" },
188 { rc(fpr)|54, "f54" }, { rc(fpr)|55, "f55" },
189 { rc(fpr)|56, "f56" }, { rc(fpr)|57, "f57" },
190 { rc(fpr)|58, "f58" }, { rc(fpr)|59, "f59" },
191 { rc(fpr)|60, "f60" }, { rc(fpr)|61, "f61" },
192 { rc(fpr)|62, "f62" }, { rc(fpr)|63, "f63" },
193 { rc(fpr)|64, "f64" }, { rc(fpr)|65, "f65" },
194 { rc(fpr)|66, "f66" }, { rc(fpr)|67, "f67" },
195 { rc(fpr)|68, "f68" }, { rc(fpr)|69, "f69" },
196 { rc(fpr)|70, "f70" }, { rc(fpr)|71, "f71" },
197 { rc(fpr)|72, "f72" }, { rc(fpr)|73, "f73" },
198 { rc(fpr)|74, "f74" }, { rc(fpr)|75, "f75" },
199 { rc(fpr)|76, "f76" }, { rc(fpr)|77, "f77" },
200 { rc(fpr)|78, "f78" }, { rc(fpr)|79, "f79" },
201 { rc(fpr)|80, "f80" }, { rc(fpr)|81, "f81" },
202 { rc(fpr)|82, "f82" }, { rc(fpr)|83, "f83" },
203 { rc(fpr)|84, "f84" }, { rc(fpr)|85, "f85" },
204 { rc(fpr)|86, "f86" }, { rc(fpr)|87, "f87" },
205 { rc(fpr)|88, "f88" }, { rc(fpr)|89, "f89" },
206 { rc(fpr)|90, "f90" }, { rc(fpr)|91, "f91" },
207 { rc(fpr)|92, "f92" }, { rc(fpr)|93, "f93" },
208 { rc(fpr)|94, "f94" }, { rc(fpr)|95, "f95" },
209 { rc(fpr)|96, "f96" }, { rc(fpr)|97, "f97" },
210 { rc(fpr)|98, "f98" }, { rc(fpr)|99, "f99" },
211 { rc(fpr)|100, "f100"}, { rc(fpr)|101, "f101"},
212 { rc(fpr)|102, "f102"}, { rc(fpr)|103, "f103"},
213 { rc(fpr)|104, "f104"}, { rc(fpr)|105, "f105"},
214 { rc(fpr)|106, "f106"}, { rc(fpr)|107, "f107"},
215 { rc(fpr)|108, "f108"}, { rc(fpr)|109, "f109"},
216 { rc(fpr)|110, "f110"}, { rc(fpr)|111, "f111"},
217 { rc(fpr)|112, "f112"}, { rc(fpr)|113, "f113"},
218 { rc(fpr)|114, "f114"}, { rc(fpr)|115, "f115"},
219 { rc(fpr)|116, "f116"}, { rc(fpr)|117, "f117"},
220 { rc(fpr)|118, "f118"}, { rc(fpr)|119, "f119"},
222 /* commented to fit a jit_regset_t in 256 bits, so that the fake
223 * O0-O7 registers are easily patched when an argument is pushed */
224 { rc(fpr)|120, "f120"}, { rc(fpr)|121, "f121"},
225 { rc(fpr)|122, "f122"}, { rc(fpr)|123, "f123"},
226 { rc(fpr)|124, "f124"}, { rc(fpr)|125, "f125"},
227 { rc(fpr)|126, "f126"}, { rc(fpr)|127, "f127"},
229 /* Fake registers to patch in movr and movi arguments */
230 { rc(arg)|120, "o0" }, { rc(arg)|121, "o1" },
231 { rc(arg)|122, "o2" }, { rc(arg)|123, "o3" },
232 { rc(arg)|124, "o4" }, { rc(arg)|125, "o5" },
233 { rc(arg)|126, "o6" }, { rc(arg)|127, "o7" },
234 { _NOREG, "<none>" },
244 __asm__ volatile("tf.nz.unc p6,p7=32;(p6)mov %0=1;(p7)mov %0=0"
246 assert(clz == 0 || clz == 1);
251 _jit_init(jit_state_t *_jit)
253 _jitc->reglen = jit_size(_rvs) - 1;
254 jit_regset_new(&_jitc->regs);
259 _jit_prolog(jit_state_t *_jit)
265 assert(jit_regset_cmp_ui(&_jitc->regarg, 0) == 0);
266 jit_regset_set_ui(&_jitc->regsav, 0);
267 offset = _jitc->functions.offset;
268 if (offset >= _jitc->functions.length) {
269 jit_realloc((jit_pointer_t *)&_jitc->functions.ptr,
270 _jitc->functions.length * sizeof(jit_function_t),
271 (_jitc->functions.length + 16) * sizeof(jit_function_t));
272 _jitc->functions.length += 16;
274 _jitc->function = _jitc->functions.ptr + _jitc->functions.offset++;
275 /* params_offset << 1, once for ours arguments, once for arguments
276 * to any called function; required because offsets are computed
277 * as JIT_FP displacement */
278 _jitc->function->self.size = stack_framesize + (params_offset << 1);
279 _jitc->function->self.argi = _jitc->function->self.argf =
280 _jitc->function->self.aoff = _jitc->function->self.alen = 0;
281 _jitc->function->self.call = jit_call_default;
282 jit_alloc((jit_pointer_t *)&_jitc->function->regoff,
283 _jitc->reglen * sizeof(jit_int32_t));
285 /* _no_link here does not mean the jit_link() call can be removed
287 * _jitc->function->prolog = jit_new_node(jit_code_prolog);
289 _jitc->function->prolog = jit_new_node_no_link(jit_code_prolog);
290 jit_link(_jitc->function->prolog);
291 _jitc->function->prolog->w.w = offset;
292 _jitc->function->epilog = jit_new_node_no_link(jit_code_epilog);
294 * v: offset in blocks vector
295 * w: offset in functions vector
297 _jitc->function->epilog->w.w = offset;
299 jit_regset_new(&_jitc->function->regset);
303 _jit_allocai(jit_state_t *_jit, jit_int32_t length)
305 assert(_jitc->function);
307 case 0: case 1: break;
308 case 2: _jitc->function->self.aoff &= -2; break;
309 case 3: case 4: _jitc->function->self.aoff &= -4; break;
310 default: _jitc->function->self.aoff &= -8; break;
312 _jitc->function->self.aoff -= length;
313 if (!_jitc->realize) {
314 jit_inc_synth_ww(allocai, _jitc->function->self.aoff, length);
317 return (_jitc->function->self.aoff);
321 _jit_allocar(jit_state_t *_jit, jit_int32_t u, jit_int32_t v)
324 assert(_jitc->function);
325 jit_inc_synth_ww(allocar, u, v);
326 if (!_jitc->function->allocar) {
327 _jitc->function->aoffoff = jit_allocai(sizeof(jit_int32_t));
328 _jitc->function->allocar = 1;
330 reg = jit_get_reg(jit_class_gpr);
332 jit_andi(reg, reg, -16);
333 jit_ldxi_i(u, JIT_FP, _jitc->function->aoffoff);
335 jit_addr(JIT_SP, JIT_SP, reg);
336 jit_stxi_i(_jitc->function->aoffoff, JIT_FP, u);
342 _jit_ret(jit_state_t *_jit)
345 assert(_jitc->function);
349 jit_patch_at(instr, _jitc->function->epilog);
354 _jit_retr(jit_state_t *_jit, jit_int32_t u, jit_code_t code)
356 jit_code_inc_synth_w(code, u);
357 jit_movr(JIT_RET, u);
363 _jit_reti(jit_state_t *_jit, jit_word_t u, jit_code_t code)
365 jit_code_inc_synth_w(code, u);
366 jit_movi(JIT_RET, u);
372 _jit_retr_f(jit_state_t *_jit, jit_int32_t u)
374 jit_inc_synth_w(retr_f, u);
375 jit_movr_f(JIT_FRET, u);
381 _jit_reti_f(jit_state_t *_jit, jit_float32_t u)
383 jit_inc_synth_f(reti_f, u);
384 jit_movi_f(JIT_FRET, u);
390 _jit_retr_d(jit_state_t *_jit, jit_int32_t u)
392 jit_inc_synth_w(retr_d, u);
393 jit_movr_d(JIT_FRET, u);
399 _jit_reti_d(jit_state_t *_jit, jit_float64_t u)
401 jit_inc_synth_d(reti_d, u);
402 jit_movi_d(JIT_FRET, u);
408 _jit_epilog(jit_state_t *_jit)
410 assert(_jitc->function);
411 assert(_jitc->function->epilog->next == NULL);
412 jit_link(_jitc->function->epilog);
413 _jitc->function = NULL;
417 _jit_arg_register_p(jit_state_t *_jit, jit_node_t *u)
419 if (u->code >= jit_code_arg_c && u->code <= jit_code_arg)
420 return (jit_arg_reg_p(u->u.w));
421 assert(u->code == jit_code_arg_f || u->code == jit_code_arg_d);
422 return (jit_arg_reg_p(u->u.w) || jit_arg_reg_p(u->u.w - 8));
426 _jit_ellipsis(jit_state_t *_jit)
428 jit_inc_synth(ellipsis);
429 if (_jitc->prepare) {
430 assert(!(_jitc->function->call.call & jit_call_varargs));
431 _jitc->function->call.call |= jit_call_varargs;
435 assert(!(_jitc->function->self.call & jit_call_varargs));
436 _jitc->function->self.call |= jit_call_varargs;
437 _jitc->function->vagp = _jitc->function->self.argi;
444 _jit_va_push(jit_state_t *_jit, jit_int32_t u)
446 jit_inc_synth_w(va_push, u);
452 _jit_arg(jit_state_t *_jit, jit_code_t code)
456 assert(_jitc->function);
457 assert(!(_jitc->function->self.call & jit_call_varargs));
458 #if STRONG_TYPE_CHECKING
459 assert(code >= jit_code_arg_c && code <= jit_code_arg);
461 if (jit_arg_reg_p(_jitc->function->self.argi))
462 offset = _jitc->function->self.argi++;
464 offset = _jitc->function->self.size;
465 _jitc->function->self.size += sizeof(jit_word_t);
467 node = jit_new_node_ww(code, offset,
468 ++_jitc->function->self.argn);
474 _jit_arg_f(jit_state_t *_jit)
478 assert(_jitc->function);
479 if (jit_arg_reg_p(_jitc->function->self.argi)) {
480 if (!(_jitc->function->self.call & jit_call_varargs))
481 offset = 8 + _jitc->function->self.argf++;
483 offset = _jitc->function->self.argi;
484 ++_jitc->function->self.argi;
487 offset = _jitc->function->self.size;
488 _jitc->function->self.size += sizeof(jit_word_t);
490 node = jit_new_node_ww(jit_code_arg_f, offset,
491 ++_jitc->function->self.argn);
497 _jit_arg_d(jit_state_t *_jit)
501 assert(_jitc->function);
502 if (jit_arg_reg_p(_jitc->function->self.argi)) {
503 if (!(_jitc->function->self.call & jit_call_varargs))
504 offset = 8 + _jitc->function->self.argf++;
506 offset = _jitc->function->self.argi;
507 ++_jitc->function->self.argi;
510 offset = _jitc->function->self.size;
511 _jitc->function->self.size += sizeof(jit_float64_t);
513 node = jit_new_node_ww(jit_code_arg_d, offset,
514 ++_jitc->function->self.argn);
520 _jit_getarg_c(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
522 assert_arg_type(v->code, jit_code_arg_c);
523 jit_inc_synth_wp(getarg_c, u, v);
524 if (jit_arg_reg_p(v->u.w))
525 jit_extr_c(u, _R32 + v->u.w);
527 jit_ldxi_c(u, JIT_FP, v->u.w + C_DISP);
532 _jit_getarg_uc(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
534 assert_arg_type(v->code, jit_code_arg_c);
535 jit_inc_synth_wp(getarg_uc, u, v);
536 if (jit_arg_reg_p(v->u.w))
537 jit_extr_uc(u, _R32 + v->u.w);
539 jit_ldxi_uc(u, JIT_FP, v->u.w + C_DISP);
544 _jit_getarg_s(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
546 assert_arg_type(v->code, jit_code_arg_s);
547 jit_inc_synth_wp(getarg_s, u, v);
548 if (jit_arg_reg_p(v->u.w))
549 jit_extr_s(u, _R32 + v->u.w);
551 jit_ldxi_s(u, JIT_FP, v->u.w + S_DISP);
556 _jit_getarg_us(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
558 assert_arg_type(v->code, jit_code_arg_s);
559 jit_inc_synth_wp(getarg_us, u, v);
560 if (jit_arg_reg_p(v->u.w))
561 jit_extr_us(u, _R32 + v->u.w);
563 jit_ldxi_us(u, JIT_FP, v->u.w + S_DISP);
568 _jit_getarg_i(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
570 assert_arg_type(v->code, jit_code_arg_i);
571 jit_inc_synth_wp(getarg_i, u, v);
572 if (jit_arg_reg_p(v->u.w))
573 jit_extr_i(u, _R32 + v->u.w);
575 jit_ldxi_i(u, JIT_FP, v->u.w + I_DISP);
580 _jit_getarg_ui(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
582 assert_arg_type(v->code, jit_code_arg_i);
583 jit_inc_synth_wp(getarg_ui, u, v);
584 if (jit_arg_reg_p(v->u.w))
585 jit_extr_ui(u, _R32 + v->u.w);
587 jit_ldxi_ui(u, JIT_FP, v->u.w + I_DISP);
592 _jit_getarg_l(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
594 assert_arg_type(v->code, jit_code_arg_l);
595 jit_inc_synth_wp(getarg_l, u, v);
596 if (jit_arg_reg_p(v->u.w))
597 jit_movr(u, _R32 + v->u.w);
599 jit_ldxi(u, JIT_FP, v->u.w);
604 _jit_putargr(jit_state_t *_jit, jit_int32_t u, jit_node_t *v, jit_code_t code)
606 assert_putarg_type(code, v->code);
607 jit_code_inc_synth_wp(code, u, v);
608 if (jit_arg_reg_p(v->u.w))
609 jit_movr(_R32 + v->u.w, u);
611 jit_stxi(v->u.w, JIT_FP, u);
616 _jit_putargi(jit_state_t *_jit, jit_word_t u, jit_node_t *v, jit_code_t code)
619 assert_putarg_type(code, v->code);
620 jit_code_inc_synth_wp(code, u, v);
621 if (jit_arg_reg_p(v->u.w))
622 jit_movi(_R32 + v->u.w, u);
624 regno = jit_get_reg(jit_class_gpr);
626 jit_stxi(v->u.w, JIT_FP, regno);
627 jit_unget_reg(regno);
633 _jit_getarg_f(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
635 assert(v->code == jit_code_arg_f);
636 jit_inc_synth_wp(getarg_f, u, v);
637 if (jit_arg_reg_p(v->u.w))
638 jit_movr_w_f(u, _OUT0 + v->u.w);
639 else if (jit_arg_reg_p(v->u.w - 8))
640 jit_movr_f(u, _F8 + (v->u.w - 8));
642 jit_ldxi_f(u, JIT_FP, v->u.w + F_DISP);
647 _jit_putargr_f(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
649 assert(v->code == jit_code_arg_f);
650 jit_inc_synth_wp(putargr_f, u, v);
651 if (jit_arg_reg_p(v->u.w))
652 jit_movr_f_w(_OUT0 + v->u.w, u);
653 else if (jit_arg_reg_p(v->u.w - 8))
654 jit_movr_f(_F8 + (v->u.w - 8), u);
656 jit_stxi_f(v->u.w, JIT_FP, u + F_DISP);
661 _jit_putargi_f(jit_state_t *_jit, jit_float32_t u, jit_node_t *v)
664 assert(v->code == jit_code_arg_f);
665 jit_inc_synth_fp(putargi_f, u, v);
666 if (jit_arg_reg_p(v->u.w))
667 jit_movi_f_w(_OUT0 + v->u.w, u);
668 else if (jit_arg_reg_p(v->u.w - 8))
669 jit_movi_f(_F8 + (v->u.w - 8), u);
671 regno = jit_get_reg(jit_class_fpr);
672 jit_movi_f(regno, u);
673 jit_stxi_f(v->u.w, JIT_FP, regno + F_DISP);
674 jit_unget_reg(regno);
680 _jit_getarg_d(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
682 assert(v->code == jit_code_arg_d);
683 jit_inc_synth_wp(getarg_d, u, v);
684 if (jit_arg_reg_p(v->u.w))
685 jit_movr_w_d(u, _OUT0 + v->u.w);
686 else if (jit_arg_reg_p(v->u.w - 8))
687 jit_movr_d(u, _F8 + (v->u.w - 8));
689 jit_ldxi_d(u, JIT_FP, v->u.w);
694 _jit_putargr_d(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
696 assert(v->code == jit_code_arg_d);
697 jit_inc_synth_wp(putargr_d, u, v);
698 if (jit_arg_reg_p(v->u.w))
699 jit_movr_d_w(_OUT0 + v->u.w, u);
700 else if (jit_arg_reg_p(v->u.w - 8))
701 jit_movr_d(_F8 + (v->u.w - 8), u);
703 jit_stxi_d(v->u.w, JIT_FP, u);
708 _jit_putargi_d(jit_state_t *_jit, jit_float64_t u, jit_node_t *v)
711 assert(v->code == jit_code_arg_d);
712 jit_inc_synth_dp(putargi_d, u, v);
713 if (jit_arg_reg_p(v->u.w))
714 jit_movi_d_w(_OUT0 + v->u.w, u);
715 else if (jit_arg_reg_p(v->u.w - 8))
716 jit_movi_d(_F8 + (v->u.w - 8), u);
718 regno = jit_get_reg(jit_class_fpr);
719 jit_movi_d(regno, u);
720 jit_stxi_d(v->u.w, JIT_FP, regno);
721 jit_unget_reg(regno);
727 _jit_pushargr(jit_state_t *_jit, jit_int32_t u, jit_code_t code)
729 assert(_jitc->function);
730 jit_code_inc_synth_w(code, u);
732 if (jit_arg_reg_p(_jitc->function->call.argi)) {
733 jit_movr(_OUT0 + _jitc->function->call.argi, u);
734 ++_jitc->function->call.argi;
737 jit_stxi(_jitc->function->call.size + params_offset, JIT_SP, u);
738 _jitc->function->call.size += sizeof(jit_word_t);
744 _jit_pushargi(jit_state_t *_jit, jit_word_t u, jit_code_t code)
747 assert(_jitc->function);
748 jit_code_inc_synth_w(code, u);
750 if (jit_arg_reg_p(_jitc->function->call.argi)) {
751 jit_movi(_OUT0 + _jitc->function->call.argi, u);
752 ++_jitc->function->call.argi;
755 regno = jit_get_reg(jit_class_gpr);
757 jit_stxi(_jitc->function->call.size + params_offset, JIT_SP, regno);
758 _jitc->function->call.size += sizeof(jit_word_t);
759 jit_unget_reg(regno);
765 _jit_pushargr_f(jit_state_t *_jit, jit_int32_t u)
767 assert(_jitc->function);
768 jit_inc_synth_w(pushargr_f, u);
770 if (jit_arg_reg_p(_jitc->function->call.argi)) {
771 if (!(_jitc->function->call.call & jit_call_varargs)) {
772 jit_movr_f(_F8 + _jitc->function->call.argf, u);
773 ++_jitc->function->call.argf;
776 jit_movr_f_w(_OUT0 + _jitc->function->call.argi, u);
777 ++_jitc->function->call.argi;
780 jit_stxi_f(_jitc->function->call.size + params_offset + F_DISP,
782 _jitc->function->call.size += sizeof(jit_word_t);
788 _jit_pushargi_f(jit_state_t *_jit, jit_float32_t u)
791 assert(_jitc->function);
792 jit_inc_synth_f(pushargi_f, u);
794 if (jit_arg_reg_p(_jitc->function->call.argi)) {
795 if (!(_jitc->function->call.call & jit_call_varargs)) {
796 jit_movi_f(_F8 + _jitc->function->call.argf, u);
797 ++_jitc->function->call.argf;
800 jit_movi_f_w(_OUT0 + _jitc->function->call.argi, u);
801 ++_jitc->function->call.argi;
804 regno = jit_get_reg(jit_class_fpr);
805 jit_movi_f(regno, u);
806 jit_stxi_f(_jitc->function->call.size + params_offset + F_DISP,
808 _jitc->function->call.size += sizeof(jit_word_t);
809 jit_unget_reg(regno);
815 _jit_pushargr_d(jit_state_t *_jit, jit_int32_t u)
817 assert(_jitc->function);
818 jit_inc_synth_w(pushargr_d, u);
820 if (jit_arg_reg_p(_jitc->function->call.argi)) {
821 if (!(_jitc->function->call.call & jit_call_varargs)) {
822 jit_movr_d(_F8 + _jitc->function->call.argf, u);
823 ++_jitc->function->call.argf;
826 jit_movr_d_w(_OUT0 + _jitc->function->call.argi, u);
827 ++_jitc->function->call.argi;
830 jit_stxi_d(_jitc->function->call.size + params_offset, JIT_SP, u);
831 _jitc->function->call.size += sizeof(jit_float64_t);
837 _jit_pushargi_d(jit_state_t *_jit, jit_float64_t u)
840 assert(_jitc->function);
841 jit_inc_synth_d(pushargi_d, u);
843 if (jit_arg_reg_p(_jitc->function->call.argi)) {
844 if (!(_jitc->function->call.call & jit_call_varargs)) {
845 jit_movi_d(_F8 + _jitc->function->call.argf, u);
846 ++_jitc->function->call.argf;
849 jit_movi_d_w(_OUT0 + _jitc->function->call.argi, u);
850 ++_jitc->function->call.argi;
853 regno = jit_get_reg(jit_class_fpr);
854 jit_movi_d(regno, u);
855 jit_stxi_d(_jitc->function->call.size + params_offset, JIT_SP, regno);
856 _jitc->function->call.size += sizeof(jit_float64_t);
857 jit_unget_reg(regno);
863 _jit_regarg_p(jit_state_t *_jit, jit_node_t *node, jit_int32_t regno)
865 /* Argument registers are allocated from the pool of unused registers */
870 _jit_finishr(jit_state_t *_jit, jit_int32_t r0)
873 assert(_jitc->function);
874 jit_inc_synth_w(finishr, r0);
875 if (_jitc->function->self.alen < _jitc->function->call.size)
876 _jitc->function->self.alen = _jitc->function->call.size;
877 call = jit_callr(r0);
878 call->v.w = _jitc->function->call.argi;
879 call->w.w = _jitc->function->call.argf;
880 _jitc->function->call.argi = _jitc->function->call.argf =
881 _jitc->function->call.size = 0;
887 _jit_finishi(jit_state_t *_jit, jit_pointer_t i0)
890 assert(_jitc->function);
891 jit_inc_synth_w(finishi, (jit_word_t)i0);
892 if (_jitc->function->self.alen < _jitc->function->call.size)
893 _jitc->function->self.alen = _jitc->function->call.size;
894 node = jit_calli(i0);
895 node->v.w = _jitc->function->call.argi;
896 node->w.w = _jitc->function->call.argf;
897 _jitc->function->call.argi = _jitc->function->call.argf =
898 _jitc->function->call.size = 0;
905 _jit_retval_c(jit_state_t *_jit, jit_int32_t r0)
907 jit_inc_synth_w(retval_c, r0);
908 jit_extr_c(r0, JIT_RET);
913 _jit_retval_uc(jit_state_t *_jit, jit_int32_t r0)
915 jit_inc_synth_w(retval_uc, r0);
916 jit_extr_uc(r0, JIT_RET);
921 _jit_retval_s(jit_state_t *_jit, jit_int32_t r0)
923 jit_inc_synth_w(retval_s, r0);
924 jit_extr_s(r0, JIT_RET);
929 _jit_retval_us(jit_state_t *_jit, jit_int32_t r0)
931 jit_inc_synth_w(retval_us, r0);
932 jit_extr_us(r0, JIT_RET);
937 _jit_retval_i(jit_state_t *_jit, jit_int32_t r0)
939 jit_inc_synth_w(retval_i, r0);
940 jit_extr_i(r0, JIT_RET);
945 _jit_retval_ui(jit_state_t *_jit, jit_int32_t r0)
947 jit_inc_synth_w(retval_ui, r0);
948 jit_extr_ui(r0, JIT_RET);
953 _jit_retval_l(jit_state_t *_jit, jit_int32_t r0)
955 jit_inc_synth_w(retval_l, r0);
956 jit_movr(r0, JIT_RET);
961 _jit_retval_f(jit_state_t *_jit, jit_int32_t r0)
963 jit_inc_synth_w(retval_l, r0);
964 jit_movr_f(r0, JIT_FRET);
969 _jit_retval_d(jit_state_t *_jit, jit_int32_t r0)
971 jit_inc_synth_w(retval_d, r0);
972 jit_movr_d(r0, JIT_FRET);
977 _emit_code(jit_state_t *_jit)
988 #if DEVEL_DISASSEMBLER
991 jit_int32_t patch_offset;
992 jit_word_t prolog_offset;
994 #if DEVEL_DISASSEMBLER
998 _jitc->function = NULL;
1000 /* If did resize the code buffer, these were not reset */
1002 jit_regset_set_ui(&_jitc->regs, 0);
1005 jit_reglive_setup();
1009 undo.patch_offset = 0;
1011 #if DEVEL_DISASSEMBLER
1014 undo.prolog_offset = 0;
1015 for (node = _jitc->head; node; node = node->next)
1016 if (node->code != jit_code_label &&
1017 node->code != jit_code_note &&
1018 node->code != jit_code_name)
1020 if (node && (node->code != jit_code_prolog ||
1021 !(_jitc->functions.ptr + node->w.w)->assume_frame)) {
1022 /* code may start with a jump so add an initial function descriptor */
1023 word = _jit->pc.w + 16;
1024 il(word); /* addr */
1027 #define case_rr(name, type) \
1028 case jit_code_##name##r##type: \
1029 name##r##type(rn(node->u.w), rn(node->v.w)); \
1031 #define case_rw(name, type) \
1032 case jit_code_##name##i##type: \
1033 name##i##type(rn(node->u.w), node->v.w); \
1035 #define case_wr(name, type) \
1036 case jit_code_##name##i##type: \
1037 name##i##type(node->u.w, rn(node->v.w)); \
1039 #define case_rrr(name, type) \
1040 case jit_code_##name##r##type: \
1041 name##r##type(rn(node->u.w), \
1042 rn(node->v.w), rn(node->w.w)); \
1044 #define case_rrrr(name, type) \
1045 case jit_code_##name##r##type: \
1046 name##r##type(rn(node->u.q.l), rn(node->u.q.h), \
1047 rn(node->v.w), rn(node->w.w)); \
1049 #define case_rrw(name, type) \
1050 case jit_code_##name##i##type: \
1051 name##i##type(rn(node->u.w), rn(node->v.w), node->w.w); \
1053 #define case_rrrw(name, type) \
1054 case jit_code_##name##i##type: \
1055 name##i##type(rn(node->u.q.l), rn(node->u.q.h), \
1056 rn(node->v.w), node->w.w); \
1058 #define case_rrf(name, type, size) \
1059 case jit_code_##name##i##type: \
1060 assert(node->flag & jit_flag_data); \
1061 name##i##type(rn(node->u.w), rn(node->v.w), \
1062 (jit_float##size##_t *)node->w.n->u.w); \
1064 #define case_wrr(name, type) \
1065 case jit_code_##name##i##type: \
1066 name##i##type(node->u.w, rn(node->v.w), rn(node->w.w)); \
1068 #define case_brr(name, type) \
1069 case jit_code_##name##r##type: \
1071 assert(temp->code == jit_code_label || \
1072 temp->code == jit_code_epilog); \
1073 if (temp->flag & jit_flag_patch) \
1074 name##r##type(temp->u.w, rn(node->v.w), \
1077 word = name##r##type(_jit->pc.w, \
1078 rn(node->v.w), rn(node->w.w)); \
1079 patch(word, node); \
1082 #define case_brw(name, type) \
1083 case jit_code_##name##i##type: \
1085 assert(temp->code == jit_code_label || \
1086 temp->code == jit_code_epilog); \
1087 if (temp->flag & jit_flag_patch) \
1088 name##i##type(temp->u.w, \
1089 rn(node->v.w), node->w.w); \
1091 word = name##i##type(_jit->pc.w, \
1092 rn(node->v.w), node->w.w); \
1093 patch(word, node); \
1096 #define case_brf(name, type, size) \
1097 case jit_code_##name##i##type: \
1099 assert(temp->code == jit_code_label || \
1100 temp->code == jit_code_epilog); \
1101 if (temp->flag & jit_flag_patch) \
1102 name##i##type(temp->u.w, rn(node->v.w), \
1103 (jit_float##size##_t *)node->w.n->u.w); \
1105 word = name##i##type(_jit->pc.w, rn(node->v.w), \
1106 (jit_float##size##_t *)node->w.n->u.w); \
1107 patch(word, node); \
1110 for (node = _jitc->head; node; node = node->next) {
1111 if (_jit->pc.uc >= _jitc->code.end)
1114 value = jit_classify(node->code);
1118 #if DEVEL_DISASSEMBLER
1119 /* FIXME DEVEL_DISASSEMBLER should become DISASSEMBLER,
1120 * but a "real" DEVEL_DISASSEMBLER should be required
1121 * to turn the below "#if 0" into "#if 1" */
1122 # if 0 /* Since disassembly outputs 3 instructions at a time,
1123 * make it "#if 1" for more clear debug output. */
1126 node->offset = (jit_uword_t)_jit->pc.w - (jit_uword_t)prevw;
1129 jit_regarg_set(node, value);
1130 switch (node->code) {
1131 case jit_code_align:
1132 assert(!(node->u.w & (node->u.w - 1)));
1139 nop((node->u.w + 7) & ~7);
1141 case jit_code_note: case jit_code_name:
1143 node->u.w = _jit->pc.w;
1145 case jit_code_label:
1147 /* remember label is defined */
1148 node->flag |= jit_flag_patch;
1149 node->u.w = _jit->pc.w;
1168 case_rrrr(qmul, _u);
1169 case_rrrw(qmul, _u);
1180 case_rrrr(qdiv, _u);
1181 case_rrrw(qdiv, _u);
1201 casr(rn(node->u.w), rn(node->v.w),
1202 rn(node->w.q.l), rn(node->w.q.h));
1205 casi(rn(node->u.w), node->v.w,
1206 rn(node->w.q.l), rn(node->w.q.h));
1212 if (node->flag & jit_flag_node) {
1214 if (temp->code == jit_code_data ||
1215 (temp->code == jit_code_label &&
1216 (temp->flag & jit_flag_patch)))
1217 movi(rn(node->u.w), temp->u.w);
1219 assert(temp->code == jit_code_label ||
1220 temp->code == jit_code_epilog);
1221 word = movi_p(rn(node->u.w), node->v.w);
1226 movi(rn(node->u.w), node->v.w);
1231 case_rr(bswap, _us);
1232 case_rr(bswap, _ui);
1233 case_rr(bswap, _ul);
1240 case_rr(trunc, _f_i);
1241 case_rr(trunc, _d_i);
1242 case_rr(trunc, _f_l);
1243 case_rr(trunc, _d_l);
1334 case_brr(boadd, _u);
1335 case_brw(boadd, _u);
1338 case_brr(bxadd, _u);
1339 case_brw(bxadd, _u);
1342 case_brr(bosub, _u);
1343 case_brw(bosub, _u);
1346 case_brr(bxsub, _u);
1347 case_brw(bxsub, _u);
1349 case_rrf(add, _f, 32);
1351 case_rrf(sub, _f, 32);
1352 case_rrf(rsb, _f, 32);
1354 case_rrf(mul, _f, 32);
1356 case_rrf(div, _f, 32);
1370 case jit_code_movi_f:
1371 assert(node->flag & jit_flag_data);
1372 movi_f(rn(node->u.w), (jit_float32_t *)node->v.n->u.w);
1376 case_rrf(lt, _f, 32);
1378 case_rrf(le, _f, 32);
1380 case_rrf(eq, _f, 32);
1382 case_rrf(ge, _f, 32);
1384 case_rrf(gt, _f, 32);
1386 case_rrf(ne, _f, 32);
1388 case_rrf(unlt, _f, 32);
1390 case_rrf(unle, _f, 32);
1392 case_rrf(uneq, _f, 32);
1394 case_rrf(unge, _f, 32);
1396 case_rrf(ungt, _f, 32);
1398 case_rrf(ltgt, _f, 32);
1400 case_rrf(ord, _f, 32);
1401 case_rrr(unord, _f);
1402 case_rrf(unord, _f, 32);
1404 case_brf(blt, _f, 32);
1406 case_brf(ble, _f, 32);
1408 case_brf(beq, _f, 32);
1410 case_brf(bge, _f, 32);
1412 case_brf(bgt, _f, 32);
1414 case_brf(bne, _f, 32);
1415 case_brr(bunlt, _f);
1416 case_brf(bunlt, _f, 32);
1417 case_brr(bunle, _f);
1418 case_brf(bunle, _f, 32);
1419 case_brr(buneq, _f);
1420 case_brf(buneq, _f, 32);
1421 case_brr(bunge, _f);
1422 case_brf(bunge, _f, 32);
1423 case_brr(bungt, _f);
1424 case_brf(bungt, _f, 32);
1425 case_brr(bltgt, _f);
1426 case_brf(bltgt, _f, 32);
1428 case_brf(bord, _f, 32);
1429 case_brr(bunord, _f);
1430 case_brf(bunord, _f, 32);
1432 case_rrf(add, _d, 64);
1434 case_rrf(sub, _d, 64);
1435 case_rrf(rsb, _d, 64);
1437 case_rrf(mul, _d, 64);
1439 case_rrf(div, _d, 64);
1453 case jit_code_movi_d:
1454 assert(node->flag & jit_flag_data);
1455 movi_d(rn(node->u.w), (jit_float64_t *)node->v.n->u.w);
1459 case_rrf(lt, _d, 64);
1461 case_rrf(le, _d, 64);
1463 case_rrf(eq, _d, 64);
1465 case_rrf(ge, _d, 64);
1467 case_rrf(gt, _d, 64);
1469 case_rrf(ne, _d, 64);
1471 case_rrf(unlt, _d, 64);
1473 case_rrf(unle, _d, 64);
1475 case_rrf(uneq, _d, 64);
1477 case_rrf(unge, _d, 64);
1479 case_rrf(ungt, _d, 64);
1481 case_rrf(ltgt, _d, 64);
1483 case_rrf(ord, _d, 64);
1484 case_rrr(unord, _d);
1485 case_rrf(unord, _d, 64);
1487 case_brf(blt, _d, 64);
1489 case_brf(ble, _d, 64);
1491 case_brf(beq, _d, 64);
1493 case_brf(bge, _d, 64);
1495 case_brf(bgt, _d, 64);
1497 case_brf(bne, _d, 64);
1498 case_brr(bunlt, _d);
1499 case_brf(bunlt, _d, 64);
1500 case_brr(bunle, _d);
1501 case_brf(bunle, _d, 64);
1502 case_brr(buneq, _d);
1503 case_brf(buneq, _d, 64);
1504 case_brr(bunge, _d);
1505 case_brf(bunge, _d, 64);
1506 case_brr(bungt, _d);
1507 case_brf(bungt, _d, 64);
1508 case_brr(bltgt, _d);
1509 case_brf(bltgt, _d, 64);
1511 case_brf(bord, _d, 64);
1512 case_brr(bunord, _d);
1513 case_brf(bunord, _d, 64);
1515 jmpr(rn(node->u.w));
1518 if (node->flag & jit_flag_node) {
1519 if (_jit->pc.uc == _jit->code.ptr + 16)
1522 assert(temp->code == jit_code_label ||
1523 temp->code == jit_code_epilog);
1524 if (temp->flag & jit_flag_patch)
1527 word = _jit->code.length -
1528 (_jit->pc.uc - _jit->code.ptr);
1529 if (word >= -16777216 && word <= 16777215)
1530 word = jmpi(_jit->pc.w);
1532 word = jmpi_p(_jit->pc.w);
1539 case jit_code_callr:
1540 callr(rn(node->u.w));
1542 case jit_code_calli:
1543 if (node->flag & jit_flag_node) {
1545 assert(temp->code == jit_code_label ||
1546 temp->code == jit_code_epilog);
1547 word = calli_p(temp->u.w);
1548 if (!(temp->flag & jit_flag_patch))
1554 case jit_code_prolog:
1555 jit_regset_set_ui(&_jitc->regs, 0);
1558 _jitc->function = _jitc->functions.ptr + node->w.w;
1560 undo.word = _jit->pc.w;
1561 memcpy(&undo.func, _jitc->function, sizeof(undo.func));
1562 #if DEVEL_DISASSEMBLER
1565 undo.patch_offset = _jitc->patches.offset;
1566 undo.prolog_offset = _jitc->prolog.offset;
1569 if (_jitc->jump && !_jitc->function->assume_frame) {
1570 /* remember prolog to hide offset adjustment for a jump
1571 * to the start of a function, what is expected to be
1572 * a common practice as first jit instruction */
1573 if (_jitc->prolog.offset >= _jitc->prolog.length) {
1574 _jitc->prolog.length += 16;
1575 jit_realloc((jit_pointer_t *)&_jitc->prolog.ptr,
1576 (_jitc->prolog.length - 16) *
1578 _jitc->prolog.length * sizeof(jit_word_t));
1580 _jitc->prolog.ptr[_jitc->prolog.offset++] = _jit->pc.w;
1581 /* function descriptor */
1582 word = _jit->pc.w + 16;
1583 il(word); /* addr */
1588 case jit_code_epilog:
1589 assert(_jitc->function == _jitc->functions.ptr + node->w.w);
1591 for (temp = undo.node->next;
1592 temp != node; temp = temp->next) {
1593 if (temp->code == jit_code_label ||
1594 temp->code == jit_code_epilog)
1595 temp->flag &= ~jit_flag_patch;
1597 temp->flag &= ~jit_flag_patch;
1599 _jit->pc.w = undo.word;
1600 /* undo.func.self.aoff and undo.func.regset should not
1601 * be undone, as they will be further updated, and are
1602 * the reason of the undo. */
1603 undo.func.self.aoff = _jitc->function->frame +
1604 _jitc->function->self.aoff;
1605 jit_regset_set(&undo.func.regset, &_jitc->function->regset);
1606 /* allocar information also does not need to be undone */
1607 undo.func.aoffoff = _jitc->function->aoffoff;
1608 undo.func.allocar = _jitc->function->allocar;
1609 memcpy(_jitc->function, &undo.func, sizeof(undo.func));
1610 #if DEVEL_DISASSEMBLER
1613 _jitc->patches.offset = undo.patch_offset;
1614 _jitc->prolog.offset = undo.prolog_offset;
1616 jit_regset_set_ui(&_jitc->regs, 0);
1618 goto restart_function;
1620 /* remember label is defined */
1622 node->flag |= jit_flag_patch;
1623 node->u.w = _jit->pc.w;
1625 jit_regset_set_ui(&_jitc->regs, 0);
1627 _jitc->function = NULL;
1629 case jit_code_va_start:
1630 vastart(rn(node->u.w));
1632 case jit_code_va_arg:
1633 vaarg(rn(node->u.w), rn(node->v.w));
1635 case jit_code_va_arg_d:
1636 vaarg_d(rn(node->u.w), rn(node->v.w));
1638 case jit_code_live: case jit_code_ellipsis:
1639 case jit_code_va_push:
1640 case jit_code_allocai: case jit_code_allocar:
1641 case jit_code_arg_c: case jit_code_arg_s:
1642 case jit_code_arg_i: case jit_code_arg_l:
1643 case jit_code_arg_f: case jit_code_arg_d:
1644 case jit_code_va_end:
1646 case jit_code_retr_c: case jit_code_reti_c:
1647 case jit_code_retr_uc: case jit_code_reti_uc:
1648 case jit_code_retr_s: case jit_code_reti_s:
1649 case jit_code_retr_us: case jit_code_reti_us:
1650 case jit_code_retr_i: case jit_code_reti_i:
1651 case jit_code_retr_ui: case jit_code_reti_ui:
1652 case jit_code_retr_l: case jit_code_reti_l:
1653 case jit_code_retr_f: case jit_code_reti_f:
1654 case jit_code_retr_d: case jit_code_reti_d:
1655 case jit_code_getarg_c: case jit_code_getarg_uc:
1656 case jit_code_getarg_s: case jit_code_getarg_us:
1657 case jit_code_getarg_i: case jit_code_getarg_ui:
1658 case jit_code_getarg_l:
1659 case jit_code_getarg_f: case jit_code_getarg_d:
1660 case jit_code_putargr_c: case jit_code_putargi_c:
1661 case jit_code_putargr_uc: case jit_code_putargi_uc:
1662 case jit_code_putargr_s: case jit_code_putargi_s:
1663 case jit_code_putargr_us: case jit_code_putargi_us:
1664 case jit_code_putargr_i: case jit_code_putargi_i:
1665 case jit_code_putargr_ui: case jit_code_putargi_ui:
1666 case jit_code_putargr_l: case jit_code_putargi_l:
1667 case jit_code_putargr_f: case jit_code_putargi_f:
1668 case jit_code_putargr_d: case jit_code_putargi_d:
1669 case jit_code_pushargr_c: case jit_code_pushargi_c:
1670 case jit_code_pushargr_uc: case jit_code_pushargi_uc:
1671 case jit_code_pushargr_s: case jit_code_pushargi_s:
1672 case jit_code_pushargr_us: case jit_code_pushargi_us:
1673 case jit_code_pushargr_i: case jit_code_pushargi_i:
1674 case jit_code_pushargr_ui: case jit_code_pushargi_ui:
1675 case jit_code_pushargr_l: case jit_code_pushargi_l:
1676 case jit_code_pushargr_f: case jit_code_pushargi_f:
1677 case jit_code_pushargr_d: case jit_code_pushargi_d:
1678 case jit_code_retval_c: case jit_code_retval_uc:
1679 case jit_code_retval_s: case jit_code_retval_us:
1680 case jit_code_retval_i:
1681 case jit_code_retval_ui: case jit_code_retval_l:
1682 case jit_code_retval_f: case jit_code_retval_d:
1683 case jit_code_prepare:
1684 case jit_code_finishr: case jit_code_finishi:
1686 case jit_code_movr_w_f:
1687 movr_w_f(rn(node->u.w), rn(node->v.w));
1689 case jit_code_movr_f_w:
1690 movr_f_w(rn(node->u.w), rn(node->v.w));
1692 case jit_code_movr_w_d:
1693 movr_w_d(rn(node->u.w), rn(node->v.w));
1695 case jit_code_movr_d_w:
1696 movr_d_w(rn(node->u.w), rn(node->v.w));
1698 case jit_code_movi_f_w:
1699 movi_f_w(rn(node->u.w), node->v.n->u.p);
1701 case jit_code_movi_d_w:
1702 movi_d_w(rn(node->u.w), node->v.n->u.p);
1707 if (jit_carry != _NOREG) {
1708 switch (node->code) {
1710 case jit_code_addcr: case jit_code_addci:
1711 case jit_code_addxr: case jit_code_addxi:
1712 case jit_code_subcr: case jit_code_subci:
1713 case jit_code_subxr: case jit_code_subxi:
1716 jit_unget_reg(jit_carry);
1724 jit_regarg_clr(node, value);
1725 if (jit_regset_cmp_ui(&_jitc->regarg, 0) != 0) {
1726 assert(jit_regset_scan1(&_jitc->regarg, 0) == jit_carry);
1727 assert(jit_regset_scan1(&_jitc->regarg, jit_carry + 1) == ULONG_MAX);
1729 assert(_jitc->synth == 0);
1730 /* update register live state */
1747 for (offset = 0; offset < _jitc->patches.offset; offset++) {
1748 node = _jitc->patches.ptr[offset].node;
1749 word = node->code == jit_code_movi ? node->v.n->u.w : node->u.n->u.w;
1750 patch_at(node->code, _jitc->patches.ptr[offset].inst, word);
1753 jit_flush(_jit->code.ptr, _jit->pc.uc);
1755 return (_jit->code.ptr);
1759 # include "jit_ia64-cpu.c"
1760 # include "jit_ia64-fpu.c"
1761 # include "jit_fallback.c"
1765 jit_flush(void *fptr, void *tptr)
1767 #if defined(__GNUC__)
1770 s = sysconf(_SC_PAGE_SIZE);
1771 f = (jit_word_t)fptr & -s;
1772 t = (((jit_word_t)tptr) + s - 1) & -s;
1774 __clear_cache((void *)f, (void *)t);
1776 /* __clear_cache is a noop in (old?) gcc, but cache flush is
1777 * required on a multi processor Linux system. */
1778 for (s = f; s < t; s += 32)
1779 asm volatile("fc %0" :: "r"(s) : "memory");
1784 /* Use r2 that is reserved to not require a jit_get_reg call, also note
1785 * that addil needs a register that first in 2 bits, so, if using a
1786 * register other than r2 must be less than r8 (or check for a smaller
1787 * immediate, i.e. i0 >= -8192 && i0 <= 8191) */
1789 _emit_ldxi(jit_state_t *_jit, jit_gpr_t r0, jit_gpr_t r1, jit_word_t i0)
1791 assert(i0 >= -2097152 && i0 < 2097151);
1792 addi(GR_2, rn(r1), i0);
1797 _emit_stxi(jit_state_t *_jit, jit_word_t i0, jit_gpr_t r0, jit_gpr_t r1)
1799 assert(i0 >= -2097152 && i0 < 2097151);
1800 addi(GR_2, rn(r0), i0);
1805 _emit_ldxi_d(jit_state_t *_jit, jit_fpr_t r0, jit_gpr_t r1, jit_word_t i0)
1807 assert(i0 >= -2097152 && i0 < 2097151);
1808 addi(GR_2, rn(r1), i0);
1809 ldr_d(rn(r0), GR_2);
1813 _emit_stxi_d(jit_state_t *_jit, jit_word_t i0, jit_gpr_t r0, jit_fpr_t r1)
1815 assert(i0 >= -2097152 && i0 < 2097151);
1816 addi(GR_2, rn(r0), i0);
1817 str_d(GR_2, rn(r1));
1821 _patch(jit_state_t *_jit, jit_word_t instr, jit_node_t *node)
1825 assert(node->flag & jit_flag_node);
1826 if (node->code == jit_code_movi)
1827 flag = node->v.n->flag;
1829 flag = node->u.n->flag;
1830 assert(!(flag & jit_flag_patch));
1831 if (_jitc->patches.offset >= _jitc->patches.length) {
1832 jit_realloc((jit_pointer_t *)&_jitc->patches.ptr,
1833 _jitc->patches.length * sizeof(jit_patch_t),
1834 (_jitc->patches.length + 1024) * sizeof(jit_patch_t));
1835 _jitc->patches.length += 1024;
1837 _jitc->patches.ptr[_jitc->patches.offset].inst = instr;
1838 _jitc->patches.ptr[_jitc->patches.offset].node = node;
1839 ++_jitc->patches.offset;