2 * Copyright (C) 2012-2023 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 # include <sys/mman.h>
30 # define MAP_ANON MAP_ANONYMOUS
31 # ifndef MAP_ANONYMOUS
32 # define MAP_ANONYMOUS 0
36 #define jit_regload_reload 0 /* convert to reload */
37 #define jit_regload_delete 1 /* just remove node */
38 #define jit_regload_isdead 2 /* delete and unset live bit */
43 static jit_word_t hash_data(const void*, jit_word_t);
45 #define new_pool() _new_pool(_jit)
46 static void _new_pool(jit_state_t*);
48 #define new_node(u) _new_node(_jit, u)
49 static jit_node_t *_new_node(jit_state_t*, jit_code_t);
51 #define link_node(u) _link_node(_jit, u)
52 static inline jit_node_t *_link_node(jit_state_t*, jit_node_t*);
54 #define del_node(u, v) _del_node(_jit, u, v)
55 static inline void _del_node(jit_state_t*, jit_node_t*, jit_node_t*);
57 #define free_node(u) _free_node(_jit, u)
58 static inline void _free_node(jit_state_t*, jit_node_t*);
60 #define del_label(u, v) _del_label(_jit, u, v)
61 static void _del_label(jit_state_t*, jit_node_t*, jit_node_t*);
63 #define jit_dataset() _jit_dataset(_jit)
65 _jit_dataset(jit_state_t *_jit);
67 #define block_update_set(block, target) _block_update_set(_jit, block, target)
68 static jit_bool_t _block_update_set(jit_state_t*, jit_block_t*, jit_block_t*);
70 #define propagate_backward(block) _propagate_backward(_jit, block)
71 static void _propagate_backward(jit_state_t*, jit_block_t*);
73 #define check_block_again() _check_block_again(_jit)
74 static jit_bool_t _check_block_again(jit_state_t*);
76 #define do_setup() _do_setup(_jit)
77 static void _do_setup(jit_state_t*);
79 #define jit_setup(block) _jit_setup(_jit, block)
81 _jit_setup(jit_state_t *_jit, jit_block_t *block);
83 #define do_follow(always) _do_follow(_jit, always)
84 static void _do_follow(jit_state_t*, jit_bool_t);
86 #define jit_follow(block) _jit_follow(_jit, block)
88 _jit_follow(jit_state_t *_jit, jit_block_t *block);
90 #define jit_update(node, live, mask) _jit_update(_jit, node, live, mask)
92 _jit_update(jit_state_t *_jit, jit_node_t *node,
93 jit_regset_t *live, jit_regset_t *mask);
95 #define thread_jumps() _thread_jumps(_jit)
97 _thread_jumps(jit_state_t *_jit);
99 #define sequential_labels() _sequential_labels(_jit)
101 _sequential_labels(jit_state_t *_jit);
103 #define split_branches() _split_branches(_jit)
105 _split_branches(jit_state_t *_jit);
107 #define shortcut_jump(prev, node) _shortcut_jump(_jit, prev, node)
109 _shortcut_jump(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node);
111 #define redundant_jump(prev, node) _redundant_jump(_jit, prev, node)
113 _redundant_jump(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node);
116 reverse_jump_code(jit_code_t code);
118 #define reverse_jump(prev, node) _reverse_jump(_jit, prev, node)
120 _reverse_jump(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node);
122 #define redundant_store(node, jump) _redundant_store(_jit, node, jump)
124 _redundant_store(jit_state_t *_jit, jit_node_t *node, jit_bool_t jump);
126 #define simplify_movr(p, n, k, s) _simplify_movr(_jit, p, n, k, s)
128 _simplify_movr(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node,
129 jit_int32_t kind, jit_int32_t size);
131 #define simplify_movi(p, n, k, s) _simplify_movi(_jit, p, n, k, s)
133 _simplify_movi(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node,
134 jit_int32_t kind, jit_int32_t size);
136 #define simplify_ldxi(prev, node) _simplify_ldxi(_jit, prev, node)
138 _simplify_ldxi(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node);
140 #define simplify_stxi(prev, node) _simplify_stxi(_jit, prev, node)
142 _simplify_stxi(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node);
144 #define simplify_spill(node, regno) _simplify_spill(_jit, node, regno)
146 _simplify_spill(jit_state_t *_jit, jit_node_t *node, jit_int32_t regno);
148 #define simplify() _simplify(_jit)
150 _simplify(jit_state_t *_jit);
152 #define jit_reg_undef -1
153 #define jit_reg_static 0
154 #define jit_reg_change 1
155 #define register_change_p(n, l, r) _register_change_p(_jit, n, l, r)
157 _register_change_p(jit_state_t *_jit, jit_node_t *node, jit_node_t *link,
160 #define spill_reglive_p(node, regno) _spill_reglive_p(_jit, node, regno)
162 _spill_reglive_p(jit_state_t *_jit, jit_node_t *node, jit_int32_t regno);
164 #define patch_registers() _patch_registers(_jit)
166 _patch_registers(jit_state_t *_jit);
168 #define patch_register(n,l,r,p) _patch_register(_jit,n,l,r,p)
170 _patch_register(jit_state_t *jit, jit_node_t *node, jit_node_t *link,
171 jit_int32_t regno, jit_int32_t patch);
184 init_jit(const char *progname)
187 jit_init_debug(progname);
199 _jit_get_reg(jit_state_t *_jit, jit_int32_t regspec)
204 spec = regspec & ~(jit_class_chk|jit_class_nospill);
205 if (spec & jit_class_named) {
206 regno = jit_regno(spec);
207 if (jit_regset_tstbit(&_jitc->regsav, regno))
208 /* fail if register is spilled */
210 if (jit_regset_tstbit(&_jitc->regarg, regno))
211 /* fail if register is an argument to current instruction */
213 if (jit_regset_tstbit(&_jitc->reglive, regno)) {
214 if (regspec & jit_class_nospill)
215 /* fail if register is live and should not spill/reload */
219 jit_regset_setbit(&_jitc->regarg, regno);
223 assert(jit_class(spec) != 0);
226 /* search for a free register matching spec */
227 for (regno = 0; regno < _jitc->reglen; regno++) {
228 if ((jit_class(_rvs[regno].spec) & spec) == spec &&
229 !jit_regset_tstbit(&_jitc->regarg, regno) &&
230 !jit_regset_tstbit(&_jitc->reglive, regno)) {
231 if (jit_regset_tstbit(&_jitc->regmask, regno)) {
232 /* search further, attempting to find a truly known
233 * free register, not just one in unknown state. */
236 for (regfree = regno + 1;
237 regfree < _jitc->reglen; regfree++) {
238 if ((jit_class(_rvs[regfree].spec) & spec) == spec &&
239 !jit_regset_tstbit(&_jitc->regarg, regfree) &&
240 !jit_regset_tstbit(&_jitc->reglive, regfree) &&
241 !jit_regset_tstbit(&_jitc->regmask, regfree)) {
251 /* search for a register matching spec that is not an argument
252 * for the current instruction */
253 for (regno = 0; regno < _jitc->reglen; regno++) {
254 if ((jit_class(_rvs[regno].spec) & spec) == spec &&
255 !jit_regset_tstbit(&_jitc->regsav, regno) &&
256 !jit_regset_tstbit(&_jitc->regarg, regno) &&
257 !(regspec & jit_class_nospill)) {
259 assert(_jitc->function != NULL);
260 if (spec & jit_class_gpr) {
261 if (!_jitc->function->regoff[regno]) {
262 _jitc->function->regoff[regno] =
263 jit_allocai(sizeof(jit_word_t));
267 /* emit_stxi must not need temporary registers */
268 assert(!_jitc->getreg);
271 emit_stxi(_jitc->function->regoff[regno], JIT_FP, regno);
277 if (!_jitc->function->regoff[regno]) {
278 _jitc->function->regoff[regno] =
279 jit_allocai(sizeof(jit_float64_t));
283 /* emit_stxi must not need temporary registers */
284 assert(!_jitc->getreg);
287 emit_stxi_d(_jitc->function->regoff[regno], JIT_FP, regno);
292 jit_regset_setbit(&_jitc->regsav, regno);
294 jit_regset_setbit(&_jitc->regarg, regno);
295 if (jit_class(_rvs[regno].spec) & jit_class_sav) {
296 /* if will modify callee save registers without a
297 * function prolog, better patch this assertion */
298 assert(_jitc->function != NULL);
299 if (!jit_regset_tstbit(&_jitc->function->regset, regno)) {
300 jit_regset_setbit(&_jitc->function->regset, regno);
309 /* nospill hint only valid during emit" */
310 assert(!(regspec & jit_class_nospill));
311 for (regno = 0; regno < _jitc->reglen; regno++) {
312 if ((jit_class(_rvs[regno].spec) & spec) == spec &&
313 !jit_regset_tstbit(&_jitc->regsav, regno) &&
314 !jit_regset_tstbit(&_jitc->regarg, regno)) {
315 jit_regset_setbit(&_jitc->regarg, regno);
316 jit_regset_setbit(&_jitc->regsav, regno);
318 return (jit_regno_patch|regno);
323 /* Out of hardware registers */
325 assert(regspec & jit_class_chk);
330 _jit_unget_reg(jit_state_t *_jit, jit_int32_t regno)
332 regno = jit_regno(regno);
333 if (jit_regset_tstbit(&_jitc->regsav, regno)) {
336 /* emit_ldxi must not need a temporary register */
337 assert(!_jitc->getreg);
340 if (jit_class(_rvs[regno].spec) & jit_class_gpr)
341 emit_ldxi(regno, JIT_FP, _jitc->function->regoff[regno]);
343 emit_ldxi_d(regno, JIT_FP, _jitc->function->regoff[regno]);
345 /* emit_ldxi must not need a temporary register */
351 jit_regset_clrbit(&_jitc->regsav, regno);
353 #if defined(jit_carry)
354 assert((regno == jit_carry /*&& _NOREG != jit_carry*/) ||
355 jit_regset_tstbit(&_jitc->regarg, regno) != 0);
357 assert(jit_regset_tstbit(&_jitc->regarg, regno) != 0);
359 jit_regset_clrbit(&_jitc->regarg, regno);
363 _jit_callee_save_p(jit_state_t *_jit, jit_int32_t regno)
365 assert(regno >= 0 && regno < JIT_NOREG);
366 return (!!(_rvs[regno].spec & jit_class_sav));
370 _jit_pointer_p(jit_state_t *_jit, jit_pointer_t address)
372 return ((jit_uint8_t *)address >= _jit->code.ptr &&
373 (jit_word_t)address < _jit->pc.w);
378 jit_regset_com(jit_regset_t *u, jit_regset_t *v)
380 u->rl = ~v->rl; u->rh = ~v->rh;
381 u->fl = ~v->fl; u->fh = ~v->fh;
385 jit_regset_and(jit_regset_t *u, jit_regset_t *v, jit_regset_t *w)
387 u->rl = v->rl & w->rl; u->rh = v->rh & w->rh;
388 u->fl = v->fl & w->fl; u->fh = v->fh & w->fh;
392 jit_regset_ior(jit_regset_t *u, jit_regset_t *v, jit_regset_t *w)
394 u->rl = v->rl | w->rl; u->rh = v->rh | w->rh;
395 u->fl = v->fl | w->fl; u->fh = v->fh | w->fh;
399 jit_regset_xor(jit_regset_t *u, jit_regset_t *v, jit_regset_t *w)
401 u->rl = v->rl ^ w->rl; u->rh = v->rh ^ w->rh;
402 u->fl = v->fl ^ w->fl; u->fh = v->fh ^ w->fh;
406 jit_regset_set(jit_regset_t *u, jit_regset_t *v)
408 u->rl = v->rl; u->rh = v->rh;
409 u->fl = v->fl; u->fh = v->fh;
413 jit_regset_set_mask(jit_regset_t *u, jit_int32_t v)
415 jit_bool_t w = !!(v & (v - 1));
417 assert(v >= 0 && v <= 256);
419 u->rl = u->rh = u->fl = u->fh = -1LL;
421 u->rl = w ? (1LL << v) - 1 : -1LL;
422 u->rh = u->fl = u->fh = 0;
426 u->rh = w ? (1LL << (v - 64)) - 1 : -1LL;
430 u->rl = u->rh = -1LL;
431 u->fl = w ? (1LL << (v - 128)) - 1 : -1LL;
435 u->rl = u->rh = u->fl = -1LL;
436 u->fh = w ? (1LL << (v - 128)) - 1 : -1LL;
441 jit_regset_cmp_ui(jit_regset_t *u, jit_word_t v)
443 return !((u->rl == v && u->rh == 0 && u->fl == 0 && u->fh == 0));
447 jit_regset_set_ui(jit_regset_t *u, jit_word_t v)
450 u->rh = u->fl = u->fh = 0;
454 jit_regset_set_p(jit_regset_t *u)
456 return (u->rl || u->rh || u->fl || u->fh);
460 jit_regset_clrbit(jit_regset_t *set, jit_int32_t bit)
462 assert(bit >= 0 && bit <= 255);
464 set->rl &= ~(1LL << bit);
466 set->rh &= ~(1LL << (bit - 64));
468 set->fl &= ~(1LL << (bit - 128));
470 set->fh &= ~(1LL << (bit - 192));
474 jit_regset_setbit(jit_regset_t *set, jit_int32_t bit)
476 assert(bit >= 0 && bit <= 255);
478 set->rl |= 1LL << bit;
480 set->rh |= 1LL << (bit - 64);
482 set->fl |= 1LL << (bit - 128);
484 set->fh |= 1LL << (bit - 192);
488 jit_regset_tstbit(jit_regset_t *set, jit_int32_t bit)
490 assert(bit >= 0 && bit <= 255);
492 return (!!(set->rl & (1LL << bit)));
494 return (!!(set->rh & (1LL << (bit - 64))));
496 return (!!(set->fl & (1LL << (bit - 128))));
497 return (!!(set->fh & (1LL << (bit - 192))));
501 jit_regset_scan1(jit_regset_t *set, jit_int32_t offset)
503 assert(offset >= 0 && offset <= 255);
504 for (; offset < 64; offset++) {
505 if (set->rl & (1LL << offset))
508 for (; offset < 128; offset++) {
509 if (set->rh & (1LL << (offset - 64)))
512 for (; offset < 192; offset++) {
513 if (set->fl & (1LL << (offset - 128)))
516 for (; offset < 256; offset++) {
517 if (set->fh & (1LL << (offset - 192)))
523 #elif __sparc__ && __WORDSIZE == 64
525 jit_regset_com(jit_regset_t *u, jit_regset_t *v)
527 u->rl = ~v->rl; u->rh = ~v->rh;
531 jit_regset_and(jit_regset_t *u, jit_regset_t *v, jit_regset_t *w)
533 u->rl = v->rl & w->rl; u->rh = v->rh & w->rh;
537 jit_regset_ior(jit_regset_t *u, jit_regset_t *v, jit_regset_t *w)
539 u->rl = v->rl | w->rl; u->rh = v->rh | w->rh;
543 jit_regset_xor(jit_regset_t *u, jit_regset_t *v, jit_regset_t *w)
545 u->rl = v->rl ^ w->rl; u->rh = v->rh ^ w->rh;
549 jit_regset_set(jit_regset_t *u, jit_regset_t *v)
551 u->rl = v->rl; u->rh = v->rh;
555 jit_regset_set_mask(jit_regset_t *u, jit_int32_t v)
557 jit_bool_t w = !!(v & (v - 1));
559 assert(v >= 0 && v <= 128);
561 u->rl = u->rh = -1LL;
563 u->rl = w ? (1LL << v) - 1 : -1LL;
568 u->rh = w ? (1LL << (v - 64)) - 1 : -1LL;
573 jit_regset_cmp_ui(jit_regset_t *u, jit_word_t v)
575 return !((u->rl == v && u->rh == 0));
579 jit_regset_set_ui(jit_regset_t *u, jit_word_t v)
586 jit_regset_set_p(jit_regset_t *u)
588 return (u->rl || u->rh);
592 jit_regset_clrbit(jit_regset_t *set, jit_int32_t bit)
594 assert(bit >= 0 && bit <= 128);
596 set->rl &= ~(1LL << bit);
598 set->rh &= ~(1LL << (bit - 64));
602 jit_regset_setbit(jit_regset_t *set, jit_int32_t bit)
604 assert(bit >= 0 && bit <= 127);
606 set->rl |= 1LL << bit;
608 set->rh |= 1LL << (bit - 64);
612 jit_regset_tstbit(jit_regset_t *set, jit_int32_t bit)
614 assert(bit >= 0 && bit <= 127);
616 return (!!(set->rl & (1LL << bit)));
618 return (!!(set->rh & (1LL << (bit - 64))));
622 jit_regset_scan1(jit_regset_t *set, jit_int32_t offset)
624 assert(offset >= 0 && offset <= 127);
625 for (; offset < 64; offset++) {
626 if (set->rl & (1LL << offset))
629 for (; offset < 128; offset++) {
630 if (set->rh & (1LL << (offset - 64)))
638 jit_regset_scan1(jit_regset_t *set, jit_int32_t offset)
641 assert(offset >= 0 && offset <= 63);
642 if ((mask = *set >> offset)) {
655 _jit_save(jit_state_t *_jit, jit_int32_t reg)
657 reg = jit_regno(reg);
658 assert(!_jitc->realize);
659 _jitc->spill[reg] = jit_new_node_w(jit_code_save, reg);
663 _jit_load(jit_state_t *_jit, jit_int32_t reg)
667 reg = jit_regno(reg);
668 assert(!_jitc->realize);
669 assert(_jitc->spill[reg] != NULL);
670 node = jit_new_node_w(jit_code_load, reg);
671 /* create a path to flag the save/load is not required */
672 node->link = _jitc->spill[reg];
673 node->link->link = node;
674 _jitc->spill[reg] = NULL;
678 hash_data(const void *data, jit_word_t length)
680 const jit_uint8_t *ptr;
682 for (i = key = 0, ptr = data; i < length; i++)
683 key = (key << (key & 1)) ^ ptr[i];
688 _jit_address(jit_state_t *_jit, jit_node_t *node)
691 assert(node != NULL &&
692 /* If a node type that is documented to be a fixed marker */
693 (node->code == jit_code_note || node->code == jit_code_name ||
694 /* If another special fixed marker, returned by jit_indirect() */
695 (node->code == jit_code_label && (node->flag & jit_flag_use) != 0)));
696 return ((jit_pointer_t)node->u.w);
700 _jit_data(jit_state_t *_jit, const void *data,
701 jit_word_t length, jit_int32_t align)
706 assert(!_jitc->realize);
708 /* Ensure there is space even if asking for a duplicate */
709 if (((_jitc->data.offset + 7) & -8) + length > _jit->data.length) {
712 size = (_jit->data.length + length + 4096) & - 4095;
713 assert(size >= _jit->data.length);
714 if (_jitc->data.ptr == NULL)
715 jit_alloc((jit_pointer_t *)&_jitc->data.ptr, size);
717 jit_realloc((jit_pointer_t *)&_jitc->data.ptr,
718 _jit->data.length, size);
719 _jit->data.length = size;
721 if (_jitc->data.table == NULL)
722 jit_alloc((jit_pointer_t *)&_jitc->data.table,
723 (_jitc->data.size = 16) * sizeof(jit_node_t*));
725 key = hash_data(data, length) & (_jitc->data.size - 1);
726 node = _jitc->data.table[key];
727 for (; node; node = node->next) {
728 if (node->v.w == length &&
729 memcmp(_jitc->data.ptr + node->u.w, data, length) == 0)
734 node = jit_new_node_no_link(jit_code_data);
741 _jitc->data.offset = (_jitc->data.offset + 1) & -2;
744 _jitc->data.offset = (_jitc->data.offset + 3) & -4;
747 _jitc->data.offset = (_jitc->data.offset + 7) & -8;
750 node->u.w = _jitc->data.offset;
752 jit_memcpy(_jitc->data.ptr + _jitc->data.offset, data, length);
753 _jitc->data.offset += length;
755 node->next = _jitc->data.table[key];
756 _jitc->data.table[key] = node;
759 /* Rehash if more than 75% used table */
760 if (_jitc->data.count >
761 (_jitc->data.size >> 1) + (_jitc->data.size >> 2) &&
762 (_jitc->data.size << 1) > _jitc->data.size) {
768 jit_alloc((jit_pointer_t *)&hash,
769 (_jitc->data.size << 1) * sizeof(jit_node_t*));
770 for (i = 0; i < _jitc->data.size; i++) {
771 temp = _jitc->data.table[i];
772 for (; temp; temp = next) {
774 key = hash_data(_jitc->data.ptr + temp->u.w, temp->v.w) &
775 ((_jitc->data.size << 1) - 1);
776 temp->next = hash[key];
780 jit_free((jit_pointer_t *)&_jitc->data.table);
781 _jitc->data.table = hash;
782 _jitc->data.size <<= 1;
790 _new_pool(jit_state_t *_jit)
795 if (_jitc->pool.offset >= _jitc->pool.length) {
798 length = _jitc->pool.length + 16;
799 jit_realloc((jit_pointer_t *)&_jitc->pool.ptr,
800 _jitc->pool.length * sizeof(jit_node_t *),
801 length * sizeof(jit_node_t *));
802 _jitc->pool.length = length;
804 jit_alloc((jit_pointer_t *)(_jitc->pool.ptr + _jitc->pool.offset),
805 sizeof(jit_node_t) * 1024);
806 list = _jitc->pool.ptr[_jitc->pool.offset];
807 for (offset = 1; offset < 1024; offset++, list++)
808 list->next = list + 1;
809 list->next = _jitc->list;
810 _jitc->list = _jitc->pool.ptr[_jitc->pool.offset];
811 ++_jitc->pool.offset;
815 _new_node(jit_state_t *_jit, jit_code_t code)
819 if (_jitc->list == NULL)
822 _jitc->list = node->next;
824 node->flag |= jit_flag_synth;
831 static inline jit_node_t *
832 _link_node(jit_state_t *_jit, jit_node_t *node)
835 _jitc->tail->next = node;
838 return (_jitc->tail = node);
842 _del_node(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node)
845 assert(prev == _jitc->head);
846 _jitc->head = node->next;
849 prev->next = node->next;
850 memset(node, 0, sizeof(jit_node_t));
851 node->next = _jitc->list;
856 _free_node(jit_state_t *_jit, jit_node_t *node)
858 memset(node, 0, sizeof(jit_node_t));
859 node->next = _jitc->list;
864 _del_label(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node)
868 /* only allow call to del_label on linked labels */
869 block = _jitc->blocks.ptr + node->v.w;
870 assert(block->label == node);
872 /* del_label() should only be called when optimizing.
873 * This will leave an empty block index */
874 jit_regset_del(&block->reglive);
875 jit_regset_del(&block->regmask);
878 /* redundant, should be already true */
879 assert(node->link == NULL);
880 del_node(prev, node);
888 jit_alloc((jit_pointer_t *)&_jit, sizeof(jit_state_t));
889 jit_alloc((jit_pointer_t *)&_jitc, sizeof(jit_compiler_t));
890 jit_regset_new(&_jitc->regarg);
891 jit_regset_new(&_jitc->regsav);
892 jit_regset_new(&_jitc->reglive);
893 jit_regset_new(&_jitc->regmask);
894 jit_regset_new(&_jitc->explive);
898 jit_alloc((jit_pointer_t *)&_jitc->spill,
899 _jitc->reglen * sizeof(jit_node_t*));
900 jit_alloc((jit_pointer_t *)&_jitc->gen,
901 _jitc->reglen * sizeof(jit_int32_t));
902 jit_alloc((jit_pointer_t *)&_jitc->values,
903 _jitc->reglen * sizeof(jit_value_t));
905 jit_alloc((jit_pointer_t *)&_jitc->patches.ptr,
906 (_jitc->patches.length = 1024) * sizeof(jit_patch_t));
907 jit_alloc((jit_pointer_t *)&_jitc->functions.ptr,
908 (_jitc->functions.length = 16) * sizeof(jit_function_t));
909 jit_alloc((jit_pointer_t *)&_jitc->pool.ptr,
910 (_jitc->pool.length = 16) * sizeof(jit_node_t*));
911 jit_alloc((jit_pointer_t *)&_jitc->blocks.ptr,
912 (_jitc->blocks.length = 16) * sizeof(jit_block_t));
913 #if __arm__ && DISASSEMBLER
914 jit_alloc((jit_pointer_t *)&_jitc->data_info.ptr,
915 (_jitc->data_info.length = 1024) * sizeof(jit_data_info_t));
918 /* allocate at most one extra note in case jit_name() is
919 * never called, or called after adding at least one note */
920 _jit->note.length = 1;
921 _jitc->note.size = sizeof(jit_note_t);
927 _jit_clear_state(jit_state_t *_jit)
929 #if DEVEL_DISASSEMBLER
930 # define jit_really_clear_state() _jit_really_clear_state(_jit)
933 void _jit_really_clear_state(jit_state_t *_jit)
937 jit_function_t *function;
939 /* release memory not required at jit execution time and set
940 * pointers to NULL to explicitly know they are released */
941 _jitc->head = _jitc->tail = NULL;
943 jit_free((jit_pointer_t *)&_jitc->data.table);
944 _jitc->data.size = _jitc->data.count = 0;
946 jit_free((jit_pointer_t *)&_jitc->spill);
947 jit_free((jit_pointer_t *)&_jitc->gen);
948 jit_free((jit_pointer_t *)&_jitc->values);
950 jit_free((jit_pointer_t *)&_jitc->blocks.ptr);
952 jit_free((jit_pointer_t *)&_jitc->patches.ptr);
953 _jitc->patches.offset = _jitc->patches.length = 0;
955 for (offset = 0; offset < _jitc->functions.offset; offset++) {
956 function = _jitc->functions.ptr + offset;
957 jit_free((jit_pointer_t *)&function->regoff);
959 jit_free((jit_pointer_t *)&_jitc->functions.ptr);
960 _jitc->functions.offset = _jitc->functions.length = 0;
961 _jitc->function = NULL;
963 for (offset = 0; offset < _jitc->pool.offset; offset++)
964 jit_free((jit_pointer_t *)(_jitc->pool.ptr + offset));
965 jit_free((jit_pointer_t *)&_jitc->pool.ptr);
966 _jitc->pool.offset = _jitc->pool.length = 0;
969 _jitc->note.head = _jitc->note.tail =
970 _jitc->note.name = _jitc->note.note = NULL;
971 _jitc->note.base = NULL;
973 #if __arm__ && DISASSEMBLER
974 jit_free((jit_pointer_t *)&_jitc->data_info.ptr);
977 #if (__powerpc__ && _CALL_AIXDESC) || __ia64__
978 jit_free((jit_pointer_t *)&_jitc->prolog.ptr);
982 jit_regset_del(&_jitc->regs);
985 jit_free((jit_pointer_t *)&_jitc);
989 _jit_destroy_state(jit_state_t *_jit)
991 #if DEVEL_DISASSEMBLER
992 jit_really_clear_state();
995 if (!_jit->user_code)
996 munmap(_jit->code.ptr, _jit->code.length);
997 if (!_jit->user_data)
998 munmap(_jit->data.ptr, _jit->data.length);
1000 jit_free((jit_pointer_t *)&_jit);
1004 _jit_synth_inc(jit_state_t *_jit)
1006 assert(_jitc->synth < 8);
1011 _jit_new_node(jit_state_t *_jit, jit_code_t code)
1013 assert(!_jitc->realize);
1014 return (link_node(new_node(code)));
1018 _jit_new_node_no_link(jit_state_t *_jit, jit_code_t code)
1020 assert(!_jitc->realize);
1021 return (new_node(code));
1025 _jit_link_node(jit_state_t *_jit, jit_node_t *node)
1027 assert(!_jitc->realize);
1032 _jit_synth_dec(jit_state_t *_jit)
1034 assert(_jitc->synth > 0);
1039 _jit_new_node_w(jit_state_t *_jit, jit_code_t code,
1042 jit_node_t *node = new_node(code);
1043 assert(!_jitc->realize);
1045 return (link_node(node));
1049 _jit_new_node_f(jit_state_t *_jit, jit_code_t code,
1052 jit_node_t *node = new_node(code);
1053 assert(!_jitc->realize);
1055 return (link_node(node));
1059 _jit_new_node_d(jit_state_t *_jit, jit_code_t code,
1062 jit_node_t *node = new_node(code);
1063 assert(!_jitc->realize);
1065 return (link_node(node));
1069 _jit_new_node_p(jit_state_t *_jit, jit_code_t code,
1072 jit_node_t *node = new_node(code);
1073 assert(!_jitc->realize);
1075 return (link_node(node));
1079 _jit_new_node_ww(jit_state_t *_jit, jit_code_t code,
1080 jit_word_t u, jit_word_t v)
1082 jit_node_t *node = new_node(code);
1083 assert(!_jitc->realize);
1086 return (link_node(node));
1090 _jit_new_node_wp(jit_state_t *_jit, jit_code_t code,
1091 jit_word_t u, jit_pointer_t v)
1093 return (jit_new_node_ww(code, u, (jit_word_t)v));
1097 _jit_new_node_fp(jit_state_t *_jit, jit_code_t code,
1098 jit_float32_t u, jit_pointer_t v)
1100 jit_node_t *node = new_node(code);
1101 assert(!_jitc->realize);
1103 node->v.w = (jit_word_t)v;
1104 return (link_node(node));
1108 _jit_new_node_dp(jit_state_t *_jit, jit_code_t code,
1109 jit_float64_t u, jit_pointer_t v)
1111 jit_node_t *node = new_node(code);
1112 assert(!_jitc->realize);
1114 node->v.w = (jit_word_t)v;
1115 return (link_node(node));
1119 _jit_new_node_pw(jit_state_t *_jit, jit_code_t code,
1120 jit_pointer_t u, jit_word_t v)
1122 return (jit_new_node_ww(code, (jit_word_t)u, v));
1126 _jit_new_node_wf(jit_state_t *_jit, jit_code_t code,
1127 jit_word_t u, jit_float32_t v)
1129 jit_node_t *node = new_node(code);
1130 assert(!_jitc->realize);
1133 return (link_node(node));
1137 _jit_new_node_wd(jit_state_t *_jit, jit_code_t code,
1138 jit_word_t u, jit_float64_t v)
1140 jit_node_t *node = new_node(code);
1141 assert(!_jitc->realize);
1144 return (link_node(node));
1148 _jit_new_node_www(jit_state_t *_jit, jit_code_t code,
1149 jit_word_t u, jit_word_t v, jit_word_t w)
1151 jit_node_t *node = new_node(code);
1152 assert(!_jitc->realize);
1156 return (link_node(node));
1160 _jit_new_node_qww(jit_state_t *_jit, jit_code_t code,
1161 jit_int32_t l, jit_int32_t h,
1162 jit_word_t v, jit_word_t w)
1164 jit_node_t *node = new_node(code);
1165 assert(!_jitc->realize);
1171 return (link_node(node));
1175 _jit_new_node_wwq(jit_state_t *_jit, jit_code_t code,
1176 jit_word_t u, jit_word_t v,
1177 jit_int32_t l, jit_int32_t h)
1179 jit_node_t *node = new_node(code);
1180 assert(!_jitc->realize);
1185 return (link_node(node));
1189 _jit_new_node_wwf(jit_state_t *_jit, jit_code_t code,
1190 jit_word_t u, jit_word_t v, jit_float32_t w)
1192 jit_node_t *node = new_node(code);
1193 assert(!_jitc->realize);
1197 return (link_node(node));
1201 _jit_new_node_wwd(jit_state_t *_jit, jit_code_t code,
1202 jit_word_t u, jit_word_t v, jit_float64_t w)
1204 jit_node_t *node = new_node(code);
1205 assert(!_jitc->realize);
1209 return (link_node(node));
1213 _jit_new_node_pww(jit_state_t *_jit, jit_code_t code,
1214 jit_pointer_t u, jit_word_t v, jit_word_t w)
1216 jit_node_t *node = new_node(code);
1217 assert(!_jitc->realize);
1221 return (link_node(node));
1225 _jit_new_node_pwf(jit_state_t *_jit, jit_code_t code,
1226 jit_pointer_t u, jit_word_t v, jit_float32_t w)
1228 jit_node_t *node = new_node(code);
1229 assert(!_jitc->realize);
1233 return (link_node(node));
1237 _jit_new_node_pwd(jit_state_t *_jit, jit_code_t code,
1238 jit_pointer_t u, jit_word_t v, jit_float64_t w)
1240 jit_node_t *node = new_node(code);
1241 assert(!_jitc->realize);
1245 return (link_node(node));
1249 _jit_label(jit_state_t *_jit)
1253 if (!(node = _jitc->tail) || node->code != jit_code_label) {
1254 node = jit_forward();
1262 _jit_forward(jit_state_t *_jit)
1264 return (jit_new_node_no_link(jit_code_label));
1268 _jit_indirect(jit_state_t *_jit)
1273 node->flag |= jit_flag_use;
1279 _jit_link(jit_state_t *_jit, jit_node_t *node)
1283 assert((node->code == jit_code_label ||
1284 node->code == jit_code_prolog ||
1285 node->code == jit_code_epilog) && !node->next);
1286 jit_link_node(node);
1287 if (_jitc->blocks.offset >= _jitc->blocks.length) {
1290 length = _jitc->blocks.length + 16;
1291 jit_realloc((jit_pointer_t *)&_jitc->blocks.ptr,
1292 _jitc->blocks.length * sizeof(jit_block_t),
1293 length * sizeof(jit_block_t));
1294 _jitc->blocks.length = length;
1296 block = _jitc->blocks.ptr + _jitc->blocks.offset;
1297 block->label = node;
1298 node->v.w = _jitc->blocks.offset;
1299 jit_regset_new(&block->reglive);
1300 jit_regset_new(&block->regmask);
1301 ++_jitc->blocks.offset;
1305 _jit_forward_p(jit_state_t *_jit, jit_node_t *node)
1307 return (node->code == jit_code_label && !node->next && node != _jitc->tail);
1311 _jit_indirect_p(jit_state_t *_jit, jit_node_t *node)
1313 return (node->code == jit_code_label && !!(node->flag & jit_flag_use));
1317 _jit_target_p(jit_state_t *_jit, jit_node_t *node)
1319 return (node->code == jit_code_label && !!node->link);
1323 _jit_prepare(jit_state_t *_jit)
1325 assert(_jitc->function != NULL);
1326 _jitc->function->call.call = jit_call_default;
1327 _jitc->function->call.argi =
1328 _jitc->function->call.argf =
1329 _jitc->function->call.size = 0;
1330 _jitc->prepare = jit_new_node(jit_code_prepare);
1334 _jit_patch(jit_state_t* _jit, jit_node_t *instr)
1338 if (!(label = _jitc->tail) || label->code != jit_code_label)
1339 label = jit_label();
1340 jit_patch_at(instr, label);
1344 _jit_classify(jit_state_t *_jit, jit_code_t code)
1349 case jit_code_data: case jit_code_save: case jit_code_load:
1350 case jit_code_name: case jit_code_label: case jit_code_note:
1351 case jit_code_prolog: case jit_code_ellipsis: case jit_code_va_push:
1352 case jit_code_epilog: case jit_code_ret: case jit_code_prepare:
1355 case jit_code_live: case jit_code_va_end:
1356 case jit_code_retr_c: case jit_code_retr_uc:
1357 case jit_code_retr_s: case jit_code_retr_us:
1358 case jit_code_retr_i: case jit_code_retr_ui:
1359 case jit_code_retr_l:
1360 case jit_code_retr_f: case jit_code_retr_d:
1361 case jit_code_pushargr_c:
1362 case jit_code_pushargr_uc:
1363 case jit_code_pushargr_s:
1364 case jit_code_pushargr_us:
1365 case jit_code_pushargr_i:
1366 case jit_code_pushargr_ui:
1367 case jit_code_pushargr_l:
1368 case jit_code_pushargr_f:
1369 case jit_code_pushargr_d:
1370 case jit_code_finishr: /* synthesized will set jit_cc_a0_jmp */
1371 mask = jit_cc_a0_reg;
1373 case jit_code_align: case jit_code_skip:
1374 case jit_code_reti_c: case jit_code_reti_uc:
1375 case jit_code_reti_s: case jit_code_reti_us:
1376 case jit_code_reti_i: case jit_code_reti_ui:
1377 case jit_code_reti_l:
1378 case jit_code_pushargi_c:
1379 case jit_code_pushargi_uc:
1380 case jit_code_pushargi_s:
1381 case jit_code_pushargi_us:
1382 case jit_code_pushargi_i:
1383 case jit_code_pushargi_ui:
1384 case jit_code_pushargi_l:
1385 case jit_code_finishi: /* synthesized will set jit_cc_a0_jmp */
1386 mask = jit_cc_a0_int;
1388 case jit_code_reti_f: case jit_code_pushargi_f:
1389 mask = jit_cc_a0_flt;
1391 case jit_code_reti_d: case jit_code_pushargi_d:
1392 mask = jit_cc_a0_dbl;
1394 case jit_code_allocai:
1395 mask = jit_cc_a0_int|jit_cc_a1_int;
1397 case jit_code_arg_c: case jit_code_arg_s:
1398 case jit_code_arg_i: case jit_code_arg_l:
1399 case jit_code_arg_f: case jit_code_arg_d:
1400 mask = jit_cc_a0_int|jit_cc_a0_arg;
1402 case jit_code_calli: case jit_code_jmpi:
1403 mask = jit_cc_a0_jmp;
1405 case jit_code_callr: case jit_code_jmpr:
1406 mask = jit_cc_a0_reg|jit_cc_a0_jmp;
1408 case jit_code_retval_c: case jit_code_retval_uc:
1409 case jit_code_retval_s: case jit_code_retval_us:
1410 case jit_code_retval_i: case jit_code_retval_ui:
1411 case jit_code_retval_l:
1412 case jit_code_retval_f: case jit_code_retval_d:
1413 case jit_code_va_start:
1414 mask = jit_cc_a0_reg|jit_cc_a0_chg;
1416 case jit_code_getarg_c: case jit_code_getarg_uc:
1417 case jit_code_getarg_s: case jit_code_getarg_us:
1418 case jit_code_getarg_i: case jit_code_getarg_ui:
1419 case jit_code_getarg_l:
1420 case jit_code_getarg_f: case jit_code_getarg_d:
1421 mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_arg;
1423 case jit_code_putargr_c:case jit_code_putargr_uc:
1424 case jit_code_putargr_s:case jit_code_putargr_us:
1425 case jit_code_putargr_i:case jit_code_putargr_ui:
1426 case jit_code_putargr_l:
1427 case jit_code_putargr_f:case jit_code_putargr_d:
1428 mask = jit_cc_a0_reg|jit_cc_a1_arg;
1430 case jit_code_putargi_c:case jit_code_putargi_uc:
1431 case jit_code_putargi_s:case jit_code_putargi_us:
1432 case jit_code_putargi_i:case jit_code_putargi_ui:
1433 case jit_code_putargi_l:
1434 mask = jit_cc_a0_int|jit_cc_a1_arg;
1436 case jit_code_putargi_f:
1437 mask = jit_cc_a0_flt|jit_cc_a1_arg;
1439 case jit_code_putargi_d:
1440 mask = jit_cc_a0_dbl|jit_cc_a1_arg;
1442 case jit_code_movi: case jit_code_ldi_c: case jit_code_ldi_uc:
1443 case jit_code_ldi_s: case jit_code_ldi_us: case jit_code_ldi_i:
1444 case jit_code_ldi_ui: case jit_code_ldi_l: case jit_code_ldi_f:
1445 case jit_code_ldi_d:
1446 mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_int;
1448 case jit_code_movi_f: case jit_code_movi_f_w:
1449 mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_flt;
1451 case jit_code_movi_d: case jit_code_movi_d_w:
1452 mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_dbl;
1454 case jit_code_movi_d_ww:
1455 mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_reg|jit_cc_a1_chg|
1458 case jit_code_negr: case jit_code_comr: case jit_code_movr:
1459 case jit_code_extr_c: case jit_code_extr_uc: case jit_code_extr_s:
1460 case jit_code_extr_us: case jit_code_extr_i: case jit_code_extr_ui:
1461 case jit_code_truncr_f_i: case jit_code_truncr_f_l:
1462 case jit_code_truncr_d_i: case jit_code_truncr_d_l:
1463 case jit_code_htonr_us: case jit_code_htonr_ui: case jit_code_htonr_ul:
1464 case jit_code_bswapr_us: case jit_code_bswapr_ui: case jit_code_bswapr_ul:
1465 case jit_code_ldr_c: case jit_code_ldr_uc:
1466 case jit_code_ldr_s: case jit_code_ldr_us: case jit_code_ldr_i:
1467 case jit_code_ldr_ui: case jit_code_ldr_l: case jit_code_negr_f:
1468 case jit_code_absr_f: case jit_code_sqrtr_f: case jit_code_movr_f:
1469 case jit_code_extr_f: case jit_code_extr_d_f: case jit_code_ldr_f:
1470 case jit_code_negr_d: case jit_code_absr_d: case jit_code_sqrtr_d:
1471 case jit_code_movr_d: case jit_code_extr_d: case jit_code_extr_f_d:
1472 case jit_code_ldr_d:
1473 case jit_code_clor: case jit_code_clzr:
1474 case jit_code_ctor: case jit_code_ctzr:
1475 case jit_code_movr_w_f: case jit_code_movr_f_w:
1476 case jit_code_movr_w_d: case jit_code_movr_d_w:
1477 case jit_code_va_arg: case jit_code_va_arg_d:
1478 mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_reg;
1480 case jit_code_movr_d_ww:
1481 mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_reg|jit_cc_a1_chg|
1484 case jit_code_addi: case jit_code_addxi: case jit_code_addci:
1485 case jit_code_subi: case jit_code_subxi: case jit_code_subci:
1487 case jit_code_muli: case jit_code_divi: case jit_code_divi_u:
1488 case jit_code_remi: case jit_code_remi_u: case jit_code_andi:
1489 case jit_code_ori: case jit_code_xori: case jit_code_lshi:
1490 case jit_code_rshi: case jit_code_rshi_u: case jit_code_lti:
1491 case jit_code_lti_u: case jit_code_lei: case jit_code_lei_u:
1492 case jit_code_eqi: case jit_code_gei: case jit_code_gei_u:
1493 case jit_code_gti: case jit_code_gti_u: case jit_code_nei:
1494 case jit_code_ldxi_c: case jit_code_ldxi_uc: case jit_code_ldxi_s:
1495 case jit_code_ldxi_us: case jit_code_ldxi_i: case jit_code_ldxi_ui:
1496 case jit_code_ldxi_l: case jit_code_ldxi_f: case jit_code_ldxi_d:
1497 mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_reg|jit_cc_a2_int;
1499 case jit_code_qmuli: case jit_code_qmuli_u:
1500 case jit_code_qdivi: case jit_code_qdivi_u:
1501 mask = jit_cc_a0_reg|jit_cc_a0_rlh|jit_cc_a0_chg|
1502 jit_cc_a1_reg|jit_cc_a2_int;
1504 case jit_code_addi_f: case jit_code_subi_f: case jit_code_rsbi_f:
1505 case jit_code_muli_f: case jit_code_divi_f: case jit_code_lti_f:
1506 case jit_code_lei_f: case jit_code_eqi_f: case jit_code_gei_f:
1507 case jit_code_gti_f: case jit_code_nei_f: case jit_code_unlti_f:
1508 case jit_code_unlei_f: case jit_code_uneqi_f: case jit_code_ungei_f:
1509 case jit_code_ungti_f: case jit_code_ltgti_f: case jit_code_ordi_f:
1510 case jit_code_unordi_f:
1511 mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_reg|jit_cc_a2_flt;
1513 case jit_code_addi_d: case jit_code_subi_d: case jit_code_rsbi_d:
1514 case jit_code_muli_d: case jit_code_divi_d: case jit_code_lti_d:
1515 case jit_code_lei_d: case jit_code_eqi_d: case jit_code_gei_d:
1516 case jit_code_gti_d: case jit_code_nei_d: case jit_code_unlti_d:
1517 case jit_code_unlei_d: case jit_code_uneqi_d: case jit_code_ungei_d:
1518 case jit_code_ungti_d: case jit_code_ltgti_d: case jit_code_ordi_d:
1519 case jit_code_unordi_d:
1520 mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_reg|jit_cc_a2_dbl;
1522 case jit_code_addr: case jit_code_addxr: case jit_code_addcr:
1523 case jit_code_subr: case jit_code_subxr: case jit_code_subcr:
1524 case jit_code_mulr: case jit_code_divr: case jit_code_divr_u:
1525 case jit_code_remr: case jit_code_remr_u: case jit_code_andr:
1526 case jit_code_orr: case jit_code_xorr: case jit_code_lshr:
1527 case jit_code_rshr: case jit_code_rshr_u: case jit_code_ltr:
1528 case jit_code_ltr_u: case jit_code_ler: case jit_code_ler_u:
1529 case jit_code_eqr: case jit_code_ger: case jit_code_ger_u:
1530 case jit_code_gtr: case jit_code_gtr_u: case jit_code_ner:
1531 case jit_code_ldxr_c: case jit_code_ldxr_uc: case jit_code_ldxr_s:
1532 case jit_code_ldxr_us: case jit_code_ldxr_i: case jit_code_ldxr_ui:
1533 case jit_code_ldxr_l: case jit_code_addr_f: case jit_code_subr_f:
1534 case jit_code_mulr_f: case jit_code_divr_f: case jit_code_ltr_f:
1535 case jit_code_ler_f: case jit_code_eqr_f: case jit_code_ger_f:
1536 case jit_code_gtr_f: case jit_code_ner_f: case jit_code_unltr_f:
1537 case jit_code_unler_f: case jit_code_uneqr_f: case jit_code_unger_f:
1538 case jit_code_ungtr_f: case jit_code_ltgtr_f: case jit_code_ordr_f:
1539 case jit_code_unordr_f: case jit_code_ldxr_f: case jit_code_addr_d:
1540 case jit_code_subr_d: case jit_code_mulr_d: case jit_code_divr_d:
1541 case jit_code_ltr_d: case jit_code_ler_d: case jit_code_eqr_d:
1542 case jit_code_ger_d: case jit_code_gtr_d: case jit_code_ner_d:
1543 case jit_code_unltr_d: case jit_code_unler_d: case jit_code_uneqr_d:
1544 case jit_code_unger_d: case jit_code_ungtr_d: case jit_code_ltgtr_d:
1545 case jit_code_ordr_d: case jit_code_unordr_d: case jit_code_ldxr_d:
1546 case jit_code_movr_ww_d:
1547 mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_reg|jit_cc_a2_reg;
1549 case jit_code_qmulr: case jit_code_qmulr_u:
1550 case jit_code_qdivr: case jit_code_qdivr_u:
1551 mask = jit_cc_a0_reg|jit_cc_a0_rlh|jit_cc_a0_chg|
1552 jit_cc_a1_reg|jit_cc_a2_reg;
1554 case jit_code_sti_c: case jit_code_sti_s: case jit_code_sti_i:
1555 case jit_code_sti_l: case jit_code_sti_f: case jit_code_sti_d:
1556 mask = jit_cc_a0_int|jit_cc_a1_reg;
1558 case jit_code_blti: case jit_code_blti_u: case jit_code_blei:
1559 case jit_code_blei_u: case jit_code_beqi: case jit_code_bgei:
1560 case jit_code_bgei_u: case jit_code_bgti: case jit_code_bgti_u:
1561 case jit_code_bnei: case jit_code_bmsi: case jit_code_bmci:
1562 mask = jit_cc_a0_jmp|jit_cc_a1_reg|jit_cc_a2_int;
1564 case jit_code_blti_f: case jit_code_blei_f: case jit_code_beqi_f:
1565 case jit_code_bgei_f: case jit_code_bgti_f: case jit_code_bnei_f:
1566 case jit_code_bunlti_f: case jit_code_bunlei_f: case jit_code_buneqi_f:
1567 case jit_code_bungei_f: case jit_code_bungti_f: case jit_code_bltgti_f:
1568 case jit_code_bordi_f: case jit_code_bunordi_f:
1569 mask = jit_cc_a0_jmp|jit_cc_a1_reg|jit_cc_a2_flt;
1571 case jit_code_blti_d: case jit_code_blei_d: case jit_code_beqi_d:
1572 case jit_code_bgei_d: case jit_code_bgti_d: case jit_code_bnei_d:
1573 case jit_code_bunlti_d: case jit_code_bunlei_d: case jit_code_buneqi_d:
1574 case jit_code_bungei_d: case jit_code_bungti_d: case jit_code_bltgti_d:
1575 case jit_code_bordi_d: case jit_code_bunordi_d:
1576 mask = jit_cc_a0_jmp|jit_cc_a1_reg|jit_cc_a2_dbl;
1578 case jit_code_allocar: /* synthesized instructions make it
1579 * equivalent to jit_cc_a0_chg */
1580 case jit_code_str_c: case jit_code_str_s: case jit_code_str_i:
1581 case jit_code_str_l: case jit_code_str_f: case jit_code_str_d:
1582 mask = jit_cc_a0_reg|jit_cc_a1_reg;
1584 case jit_code_stxi_c: case jit_code_stxi_s: case jit_code_stxi_i:
1585 case jit_code_stxi_l: case jit_code_stxi_f: case jit_code_stxi_d:
1586 mask = jit_cc_a0_int|jit_cc_a1_reg|jit_cc_a2_reg;
1588 case jit_code_bltr: case jit_code_bltr_u: case jit_code_bler:
1589 case jit_code_bler_u: case jit_code_beqr: case jit_code_bger:
1590 case jit_code_bger_u: case jit_code_bgtr: case jit_code_bgtr_u:
1591 case jit_code_bner: case jit_code_bmsr: case jit_code_bmcr:
1592 case jit_code_bltr_f: case jit_code_bler_f: case jit_code_beqr_f:
1593 case jit_code_bger_f: case jit_code_bgtr_f: case jit_code_bner_f:
1594 case jit_code_bunltr_f: case jit_code_bunler_f: case jit_code_buneqr_f:
1595 case jit_code_bunger_f: case jit_code_bungtr_f: case jit_code_bltgtr_f:
1596 case jit_code_bordr_f: case jit_code_bunordr_f:case jit_code_bltr_d:
1597 case jit_code_bler_d: case jit_code_beqr_d: case jit_code_bger_d:
1598 case jit_code_bgtr_d: case jit_code_bner_d: case jit_code_bunltr_d:
1599 case jit_code_bunler_d: case jit_code_buneqr_d: case jit_code_bunger_d:
1600 case jit_code_bungtr_d: case jit_code_bltgtr_d: case jit_code_bordr_d:
1601 case jit_code_bunordr_d:
1602 mask = jit_cc_a0_jmp|jit_cc_a1_reg|jit_cc_a2_reg;
1604 case jit_code_boaddi: case jit_code_boaddi_u: case jit_code_bxaddi:
1605 case jit_code_bxaddi_u: case jit_code_bosubi: case jit_code_bosubi_u:
1606 case jit_code_bxsubi: case jit_code_bxsubi_u:
1607 mask = jit_cc_a0_jmp|jit_cc_a1_reg|jit_cc_a1_chg|jit_cc_a2_int;
1609 case jit_code_stxr_c: case jit_code_stxr_s: case jit_code_stxr_i:
1610 case jit_code_stxr_l: case jit_code_stxr_f: case jit_code_stxr_d:
1611 mask = jit_cc_a0_reg|jit_cc_a1_reg|jit_cc_a2_reg;
1613 case jit_code_boaddr: case jit_code_boaddr_u: case jit_code_bxaddr:
1614 case jit_code_bxaddr_u: case jit_code_bosubr: case jit_code_bosubr_u:
1615 case jit_code_bxsubr: case jit_code_bxsubr_u:
1616 mask = jit_cc_a0_jmp|jit_cc_a1_reg|jit_cc_a1_chg|jit_cc_a2_reg;
1618 case jit_code_movnr: case jit_code_movzr:
1619 mask = jit_cc_a0_reg|jit_cc_a0_cnd|jit_cc_a1_reg|jit_cc_a2_reg;
1622 mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_reg|
1623 jit_cc_a2_reg|jit_cc_a2_rlh;
1626 mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_int|
1627 jit_cc_a2_reg|jit_cc_a2_rlh;
1637 _jit_patch_abs(jit_state_t *_jit, jit_node_t *instr, jit_pointer_t address)
1641 switch (instr->code) {
1642 case jit_code_movi: case jit_code_ldi_c: case jit_code_ldi_uc:
1643 case jit_code_ldi_s: case jit_code_ldi_us: case jit_code_ldi_i:
1644 case jit_code_ldi_ui: case jit_code_ldi_l: case jit_code_ldi_f:
1645 case jit_code_ldi_d:
1646 instr->v.p = address;
1648 case jit_code_sti_c: case jit_code_sti_s: case jit_code_sti_i:
1649 case jit_code_sti_l: case jit_code_sti_f: case jit_code_sti_d:
1650 instr->u.p = address;
1653 mask = jit_classify(instr->code);
1654 assert((mask & (jit_cc_a0_reg|jit_cc_a0_jmp)) == jit_cc_a0_jmp);
1655 instr->u.p = address;
1660 _jit_patch_at(jit_state_t *_jit, jit_node_t *instr, jit_node_t *label)
1664 assert(!(instr->flag & jit_flag_node));
1665 instr->flag |= jit_flag_node;
1666 switch (instr->code) {
1668 assert(label->code == jit_code_label ||
1669 label->code == jit_code_data);
1671 if (label->code == jit_code_data)
1672 instr->flag |= jit_flag_data;
1675 assert(label->code == jit_code_label ||
1676 label->code == jit_code_epilog);
1680 mask = jit_classify(instr->code);
1681 assert((mask & (jit_cc_a0_reg|jit_cc_a0_jmp)) == jit_cc_a0_jmp);
1682 assert(label->code == jit_code_label);
1686 /* link field is used as list of nodes associated with a given label */
1687 instr->link = label->link;
1688 label->link = instr;
1692 _do_setup(jit_state_t *_jit)
1697 /* create initial mapping of live register values
1698 * at the start of a basic block */
1699 for (offset = 0; offset < _jitc->blocks.offset; offset++) {
1700 block = _jitc->blocks.ptr + offset;
1703 if (block->label->code == jit_code_epilog) {
1704 jit_regset_setbit(&block->reglive, JIT_RET);
1705 jit_regset_setbit(&block->reglive, JIT_FRET);
1706 jit_regset_com(&block->regmask, &block->reglive);
1714 _block_update_set(jit_state_t *_jit,
1715 jit_block_t *block, jit_block_t *target)
1717 jit_regset_t regmask;
1719 jit_regset_ior(®mask, &block->reglive, &target->reglive);
1720 jit_regset_and(®mask, ®mask, &block->regmask);
1721 if (jit_regset_set_p(®mask)) {
1722 jit_regset_ior(&block->reglive, &block->reglive, ®mask);
1723 jit_regset_and(®mask, &block->reglive, &block->regmask);
1724 jit_regset_com(®mask, ®mask);
1725 jit_regset_and(&block->regmask, &block->regmask, ®mask);
1733 _propagate_backward(jit_state_t *_jit, jit_block_t *block)
1738 for (offset = block->label->v.w - 1;
1739 offset >= 0; --offset) {
1740 prev = _jitc->blocks.ptr + offset;
1741 if (!block_update_set(prev, block) ||
1742 !(prev->label->flag & jit_flag_head))
1748 _check_block_again(jit_state_t *_jit)
1752 jit_node_t *node, *label;
1753 jit_block_t *block, *target;
1756 for (offset = 0; offset < _jitc->blocks.offset; offset++) {
1757 block = _jitc->blocks.ptr + offset;
1763 /* If no block changed state */
1770 for (node = _jitc->head; node; node = node->next) {
1771 /* Special jumps that match jit_cc_a0_jmp */
1772 if (node->code == jit_code_calli || node->code == jit_code_callr)
1775 /* Remember current label */
1776 if (node->code == jit_code_label ||
1777 node->code == jit_code_prolog ||
1778 node->code == jit_code_epilog) {
1780 /* If previous block does not pass through */
1781 if (!(node->flag & jit_flag_head))
1784 target = _jitc->blocks.ptr + node->v.w;
1785 if (block && target->again && block_update_set(block, target)) {
1786 propagate_backward(block);
1791 /* If not the first jmpi */
1793 /* If a jump to dynamic address or if a jump to raw address */
1794 if (!(jit_classify(node->code) & jit_cc_a0_jmp) ||
1795 !(node->flag & jit_flag_node))
1798 /* Mark predecessor needs updating due to target change */
1799 target = _jitc->blocks.ptr + label->v.w;
1800 if (target->again && block_update_set(block, target)) {
1801 propagate_backward(block);
1813 _do_follow(jit_state_t *_jit, jit_bool_t always)
1818 /* set live state of registers not referenced in a block, but
1819 * referenced in a jump target or normal flow */
1820 for (offset = 0; offset < _jitc->blocks.offset; offset++) {
1821 block = _jitc->blocks.ptr + offset;
1822 if (!block->label || block->label->code == jit_code_epilog)
1824 if (always || block->again) {
1832 _jit_optimize(jit_state_t *_jit)
1840 jit_regset_t regmask;
1843 _jitc->function = NULL;
1846 sequential_labels();
1855 jit_regset_set_ui(®mask, 0);
1856 for (offset = 0; offset < _jitc->reglen; offset++) {
1857 if ((jit_class(_rvs[offset].spec) & (jit_class_gpr|jit_class_fpr)) &&
1858 (jit_class(_rvs[offset].spec) & jit_class_sav) == jit_class_sav)
1859 jit_regset_setbit(®mask, offset);
1862 /* Figure out labels that are only reached with a jump */
1864 for (node = _jitc->head; node; node = node->next) {
1865 switch (node->code) {
1866 case jit_code_label:
1868 node->flag |= jit_flag_head;
1870 /* Block is dead code or only reachable with an
1871 * indirect jumps. In such condition, must assume
1872 * all callee save registers are live. */
1873 block = _jitc->blocks.ptr + node->v.w;
1874 jit_regset_ior(&block->reglive,
1875 &block->reglive, ®mask);
1876 /* Cleanup regmask */
1877 block_update_set(block, block);
1881 case jit_code_jmpi: case jit_code_jmpr:
1882 case jit_code_epilog:
1885 case jit_code_data: case jit_code_note:
1893 for (node = _jitc->head; node; node = node->next) {
1894 mask = jit_classify(node->code);
1895 if (mask & jit_cc_a0_reg)
1896 node->u.w &= ~jit_regno_patch;
1897 if (mask & jit_cc_a1_reg)
1898 node->v.w &= ~jit_regno_patch;
1899 if (mask & jit_cc_a2_reg)
1900 node->w.w &= ~jit_regno_patch;
1901 if (node->code == jit_code_beqi) {
1902 if (redundant_store(node, 1)) {
1903 block = _jitc->blocks.ptr + ((jit_node_t *)node->u.n)->v.w;
1908 else if (node->code == jit_code_bnei) {
1909 if (redundant_store(node, 0)) {
1910 block = _jitc->blocks.ptr + ((jit_node_t *)node->u.n)->v.w;
1918 todo = check_block_again();
1920 /* If instructions were removed or first pass did modify the entry
1921 * state of any block */
1927 /* If any block again has the entry state modified. */
1928 todo = check_block_again();
1932 for (node = _jitc->head; node; node = node->next) {
1933 mask = jit_classify(node->code);
1934 if (mask & jit_cc_a0_reg)
1935 node->u.w &= ~jit_regno_patch;
1936 if (mask & jit_cc_a1_reg)
1937 node->v.w &= ~jit_regno_patch;
1938 if (mask & jit_cc_a2_reg)
1939 node->w.w &= ~jit_regno_patch;
1940 if (node->code == jit_code_prolog)
1941 _jitc->function = _jitc->functions.ptr + node->w.w;
1942 else if(node->code == jit_code_epilog)
1943 _jitc->function = NULL;
1946 if (mask & jit_cc_a0_flt) {
1947 node->u.p = jit_data(&node->u.f, sizeof(jit_float32_t), 4);
1948 node->flag |= jit_flag_node | jit_flag_data;
1950 else if (mask & jit_cc_a0_dbl) {
1951 node->u.p = jit_data(&node->u.d, sizeof(jit_float64_t), 8);
1952 node->flag |= jit_flag_node | jit_flag_data;
1954 else if (mask & jit_cc_a1_flt) {
1955 node->v.p = jit_data(&node->v.f, sizeof(jit_float32_t), 4);
1956 node->flag |= jit_flag_node | jit_flag_data;
1958 else if (mask & jit_cc_a1_dbl) {
1959 node->v.p = jit_data(&node->v.d, sizeof(jit_float64_t), 8);
1960 node->flag |= jit_flag_node | jit_flag_data;
1962 else if (mask & jit_cc_a2_flt) {
1963 node->w.p = jit_data(&node->w.f, sizeof(jit_float32_t), 4);
1964 node->flag |= jit_flag_node | jit_flag_data;
1966 else if (mask & jit_cc_a2_dbl) {
1967 node->w.p = jit_data(&node->w.d, sizeof(jit_float64_t), 8);
1968 node->flag |= jit_flag_node | jit_flag_data;
1971 if (_jitc->function) {
1972 if ((mask & (jit_cc_a0_reg|jit_cc_a0_chg)) ==
1973 (jit_cc_a0_reg|jit_cc_a0_chg)) {
1974 if (mask & jit_cc_a0_rlh) {
1975 jit_regset_setbit(&_jitc->function->regset,
1976 jit_regno(node->u.q.l));
1977 jit_regset_setbit(&_jitc->function->regset,
1978 jit_regno(node->u.q.h));
1981 jit_regset_setbit(&_jitc->function->regset,
1982 jit_regno(node->u.w));
1984 if ((mask & (jit_cc_a1_reg|jit_cc_a1_chg)) ==
1985 (jit_cc_a1_reg|jit_cc_a1_chg))
1986 jit_regset_setbit(&_jitc->function->regset,
1987 jit_regno(node->v.w));
1988 if ((mask & (jit_cc_a2_reg|jit_cc_a2_chg)) ==
1989 (jit_cc_a2_reg|jit_cc_a2_chg))
1990 jit_regset_setbit(&_jitc->function->regset,
1991 jit_regno(node->w.w));
1998 _jit_reglive(jit_state_t *_jit, jit_node_t *node)
2004 switch (node->code) {
2005 case jit_code_label: case jit_code_prolog: case jit_code_epilog:
2006 block = _jitc->blocks.ptr + node->v.w;
2007 jit_regset_set(&_jitc->reglive, &block->reglive);
2008 jit_regset_set_ui(&_jitc->explive, 0);
2011 jit_regset_setbit(&_jitc->explive, node->u.w);
2013 case jit_code_callr:
2014 value = jit_regno(node->u.w);
2015 if (!(node->u.w & jit_regno_patch)) {
2016 jit_regset_setbit(&_jitc->reglive, value);
2018 case jit_code_calli:
2019 for (value = 0; value < _jitc->reglen; value++) {
2020 spec = jit_class(_rvs[value].spec);
2021 if ((spec & jit_class_arg) && jit_regarg_p(node, value))
2022 jit_regset_setbit(&_jitc->reglive, value);
2023 else if (!(spec & jit_class_sav))
2024 jit_regset_clrbit(&_jitc->reglive, value);
2028 value = jit_classify(node->code);
2029 if (value & jit_cc_a0_reg) {
2030 if (value & jit_cc_a0_rlh) {
2031 if (!(node->u.q.l & jit_regno_patch)) {
2032 if (value & jit_cc_a0_chg) {
2033 jit_regset_clrbit(&_jitc->reglive, node->u.q.l);
2034 jit_regset_setbit(&_jitc->regmask, node->u.q.l);
2037 jit_regset_setbit(&_jitc->reglive, node->u.q.l);
2039 if (!(node->u.q.h & jit_regno_patch)) {
2040 if (value & jit_cc_a0_chg) {
2041 jit_regset_clrbit(&_jitc->reglive, node->u.q.h);
2042 jit_regset_setbit(&_jitc->regmask, node->u.q.h);
2045 jit_regset_setbit(&_jitc->reglive, node->u.q.h);
2049 if (!(node->u.w & jit_regno_patch)) {
2050 if (value & jit_cc_a0_chg) {
2051 jit_regset_clrbit(&_jitc->reglive, node->u.w);
2052 jit_regset_setbit(&_jitc->regmask, node->u.w);
2055 jit_regset_setbit(&_jitc->reglive, node->u.w);
2059 if ((value & jit_cc_a1_reg) && !(node->v.w & jit_regno_patch)) {
2060 if (value & jit_cc_a1_chg) {
2061 jit_regset_clrbit(&_jitc->reglive, node->v.w);
2062 jit_regset_setbit(&_jitc->regmask, node->v.w);
2065 jit_regset_setbit(&_jitc->reglive, node->v.w);
2067 if (value & jit_cc_a2_reg) {
2068 if (value & jit_cc_a2_rlh) {
2069 /* Assume registers are not changed */
2070 if (!(node->w.q.l & jit_regno_patch))
2071 jit_regset_setbit(&_jitc->reglive, node->w.q.l);
2072 if (!(node->w.q.h & jit_regno_patch))
2073 jit_regset_setbit(&_jitc->reglive, node->w.q.h);
2076 if (!(node->w.w & jit_regno_patch)) {
2077 if (value & jit_cc_a2_chg) {
2078 jit_regset_clrbit(&_jitc->reglive, node->w.w);
2079 jit_regset_setbit(&_jitc->regmask, node->w.w);
2082 jit_regset_setbit(&_jitc->reglive, node->w.w);
2086 if (jit_regset_set_p(&_jitc->regmask)) {
2087 jit_update(node->next, &_jitc->reglive, &_jitc->regmask);
2088 if (jit_regset_set_p(&_jitc->regmask)) {
2089 /* any unresolved live state is considered as live */
2090 jit_regset_ior(&_jitc->reglive,
2091 &_jitc->reglive, &_jitc->regmask);
2092 jit_regset_set_ui(&_jitc->regmask, 0);
2100 _jit_regarg_set(jit_state_t *_jit, jit_node_t *node, jit_int32_t value)
2105 if (value & jit_cc_a0_reg) {
2106 if (value & jit_cc_a0_rlh) {
2107 jit_regset_setbit(&_jitc->regarg, jit_regno(node->u.q.l));
2108 jit_regset_setbit(&_jitc->regarg, jit_regno(node->u.q.h));
2111 jit_regset_setbit(&_jitc->regarg, jit_regno(node->u.w));
2113 if (value & jit_cc_a1_reg)
2114 jit_regset_setbit(&_jitc->regarg, jit_regno(node->v.w));
2115 if (value & jit_cc_a2_reg) {
2116 if (value & jit_cc_a2_rlh) {
2117 jit_regset_setbit(&_jitc->regarg, jit_regno(node->w.q.l));
2118 jit_regset_setbit(&_jitc->regarg, jit_regno(node->w.q.h));
2121 jit_regset_setbit(&_jitc->regarg, jit_regno(node->w.w));
2123 /* Prevent incorrect detection of running out of registers
2124 * if will need to patch jump, and all registers have been
2125 * used in the current block. */
2126 if (node->code == jit_code_jmpi && (node->flag & jit_flag_node)) {
2127 jit_node_t *label = node->u.n;
2128 jit_block_t *block = _jitc->blocks.ptr + label->v.w;
2129 jit_regset_set(&_jitc->reglive, &block->reglive);
2130 jit_regset_set(&_jitc->regmask, &block->regmask);
2131 if (jit_regset_set_p(&_jitc->explive)) {
2132 jit_regset_ior(&_jitc->reglive, &block->reglive, &_jitc->explive);
2133 jit_regset_xor(&_jitc->regmask, &_jitc->regmask, &_jitc->explive);
2139 _jit_regarg_clr(jit_state_t *_jit, jit_node_t *node, jit_int32_t value)
2142 jit_size_collect(node);
2144 if (value & jit_cc_a0_reg) {
2145 if (value & jit_cc_a0_rlh) {
2146 jit_regset_clrbit(&_jitc->regarg, jit_regno(node->u.q.l));
2147 jit_regset_clrbit(&_jitc->regarg, jit_regno(node->u.q.h));
2150 jit_regset_clrbit(&_jitc->regarg, jit_regno(node->u.w));
2152 if (value & jit_cc_a1_reg)
2153 jit_regset_clrbit(&_jitc->regarg, jit_regno(node->v.w));
2154 if (value & jit_cc_a2_reg) {
2155 if (value & jit_cc_a2_rlh) {
2156 jit_regset_clrbit(&_jitc->regarg, jit_regno(node->w.q.l));
2157 jit_regset_clrbit(&_jitc->regarg, jit_regno(node->w.q.h));
2160 jit_regset_clrbit(&_jitc->regarg, jit_regno(node->w.w));
2165 _jit_realize(jit_state_t *_jit)
2167 assert(!_jitc->realize);
2168 if (_jitc->function)
2173 /* ensure it is aligned */
2174 _jitc->data.offset = (_jitc->data.offset + 7) & -8;
2177 /* Heuristic to guess code buffer size */
2179 _jit->code.length = _jitc->pool.length * 1024 * _jitc->mult;
2181 _jit->code.length = jit_get_size();
2186 _jit_dataset(jit_state_t *_jit)
2195 assert(!_jitc->dataset);
2197 assert(_jit->user_data);
2199 if (!_jit->user_data) {
2201 /* create read only data buffer */
2202 _jit->data.length = (_jitc->data.offset +
2203 /* reserve space for annotations */
2204 _jitc->note.size + 4095) & -4096;
2206 mmap_fd = open("/dev/zero", O_RDWR);
2208 _jit->data.ptr = mmap(NULL, _jit->data.length,
2209 PROT_READ | PROT_WRITE,
2210 MAP_PRIVATE | MAP_ANON, mmap_fd, 0);
2211 assert(_jit->data.ptr != MAP_FAILED);
2216 #endif /* !HAVE_MMAP */
2218 if (!_jitc->no_data)
2219 jit_memcpy(_jit->data.ptr, _jitc->data.ptr, _jitc->data.offset);
2221 if (_jitc->no_note) {
2222 /* Space for one note is always allocated, so revert it here
2223 * if after jit_new_state was called, it is also requested to
2224 * not generate annotation information */
2225 _jit->note.length = 0;
2226 _jitc->note.size = 0;
2229 _jitc->note.base = _jit->data.ptr;
2230 if (!_jitc->no_data)
2231 _jitc->note.base += _jitc->data.offset;
2232 memset(_jitc->note.base, 0, _jitc->note.size);
2235 if (_jit->user_data)
2236 /* Need the temporary hashed data until jit_emit is finished */
2237 ptr = _jitc->no_data ? _jitc->data.ptr : _jit->data.ptr;
2239 ptr = _jit->data.ptr;
2240 /* Temporary hashed data no longer required */
2241 jit_free((jit_pointer_t *)&_jitc->data.ptr);
2244 for (offset = 0; offset < _jitc->data.size; offset++) {
2245 for (node = _jitc->data.table[offset]; node; node = node->next) {
2246 node->flag |= jit_flag_patch;
2247 node->u.w = (jit_word_t)(ptr + node->u.w);
2255 _jit_get_code(jit_state_t *_jit, jit_word_t *length)
2257 assert(_jitc->realize);
2260 /* If code already generated, return exact size of code */
2261 *length = _jit->pc.uc - _jit->code.ptr;
2263 /* Else return current size of the code buffer */
2264 *length = _jit->code.length;
2267 return (_jit->code.ptr);
2271 _jit_set_code(jit_state_t *_jit, jit_pointer_t ptr, jit_word_t length)
2273 assert(_jitc->realize);
2274 _jit->code.ptr = ptr;
2275 _jit->code.length = length;
2276 _jit->user_code = 1;
2280 _jit_get_data(jit_state_t *_jit, jit_word_t *data_size, jit_word_t *note_size)
2282 assert(_jitc->realize);
2284 *data_size = _jitc->data.offset;
2286 *note_size = _jitc->note.size;
2287 return (_jit->data.ptr);
2291 _jit_set_data(jit_state_t *_jit, jit_pointer_t ptr,
2292 jit_word_t length, jit_word_t flags)
2294 assert(_jitc->realize);
2295 if (flags & JIT_DISABLE_DATA)
2298 assert(length >= _jitc->data.offset);
2299 if (flags & JIT_DISABLE_NOTE)
2302 if (flags & JIT_DISABLE_DATA)
2303 assert(length >= _jitc->note.size);
2305 assert(length >= _jitc->data.offset + _jitc->note.size);
2307 _jit->data.ptr = ptr;
2308 _jit->data.length = length;
2309 _jit->user_data = 1;
2313 _jit_emit(jit_state_t *_jit)
2322 int mmap_prot, mmap_flags;
2324 if (!_jitc->realize)
2327 if (!_jitc->dataset)
2333 assert(_jit->user_code);
2335 if (!_jit->user_code) {
2336 mmap_prot = PROT_READ | PROT_WRITE;
2337 #if !(__OpenBSD__ || __APPLE__)
2338 mmap_prot |= PROT_EXEC;
2341 mmap_prot = PROT_MPROTECT(mmap_prot);
2344 mmap_flags = MAP_PRIVATE;
2346 mmap_flags |= MAP_ANON;
2348 mmap_fd = open("/dev/zero", O_RDWR);
2350 _jit->code.ptr = mmap(NULL, _jit->code.length,
2351 mmap_prot, mmap_flags, mmap_fd, 0);
2352 assert(_jit->code.ptr != MAP_FAILED);
2354 #endif /* !HAVE_MMAP */
2355 _jitc->code.end = _jit->code.ptr + _jit->code.length -
2356 jit_get_max_instr();
2357 _jit->pc.uc = _jit->code.ptr;
2361 result = mprotect(_jit->code.ptr, _jit->code.length,
2362 PROT_READ | PROT_WRITE);
2363 assert(result == 0);
2365 if ((code = emit_code()) == NULL) {
2366 _jitc->patches.offset = 0;
2367 for (node = _jitc->head; node; node = node->next) {
2369 (node->code == jit_code_label ||
2370 node->code == jit_code_epilog))
2371 node->flag &= ~jit_flag_patch;
2374 assert(_jit->user_code);
2376 if (_jit->user_code)
2380 length = _jitc->pool.length * 1024 * _jitc->mult;
2382 /* Should only happen on very special cases */
2383 length = _jit->code.length + 4096;
2387 munmap(_jit->code.ptr, _jit->code.length);
2392 _jit->code.ptr = mremap(_jit->code.ptr, _jit->code.length,
2393 _jit->code.ptr, length, 0);
2395 _jit->code.ptr = mremap(_jit->code.ptr, _jit->code.length,
2396 length, MREMAP_MAYMOVE, NULL);
2399 _jit->code.ptr = mmap(NULL, length,
2400 mmap_prot, mmap_flags, mmap_fd, 0);
2403 assert(_jit->code.ptr != MAP_FAILED);
2404 _jit->code.length = length;
2405 _jitc->code.end = _jit->code.ptr + _jit->code.length -
2406 jit_get_max_instr();
2407 _jit->pc.uc = _jit->code.ptr;
2408 #endif /* !HAVE_MMAP */
2415 if (!_jit->user_code)
2420 if (!_jitc->no_note)
2423 if (_jit->user_data)
2424 jit_free((jit_pointer_t *)&_jitc->data.ptr);
2427 result = mprotect(_jit->data.ptr,
2428 _jit->data.length, PROT_READ);
2429 assert(result == 0);
2431 if (!_jit->user_code) {
2432 _jit->code.protected = _jit->pc.uc - _jit->code.ptr;
2433 # if __riscv && __WORDSIZE == 64
2434 /* FIXME should start adding consts at a page boundary */
2435 _jit->code.protected -= _jitc->consts.hash.count * sizeof(jit_word_t);
2437 result = mprotect(_jit->code.ptr, _jit->code.protected, PROT_READ | PROT_EXEC);
2438 assert(result == 0);
2440 #endif /* HAVE_MMAP */
2442 return (_jit->code.ptr);
2448 _jit_protect(jit_state_t *_jit)
2451 assert (_jit->user_code);
2454 if (_jit->user_code) return;
2455 result = mprotect (_jit->code.ptr, _jit->code.protected, PROT_READ | PROT_EXEC);
2456 assert (result == 0);
2461 _jit_unprotect(jit_state_t *_jit)
2464 assert (_jit->user_code);
2467 if (_jit->user_code) return;
2468 result = mprotect (_jit->code.ptr, _jit->code.protected, PROT_READ | PROT_WRITE);
2469 assert (result == 0);
2474 _jit_frame(jit_state_t *_jit, jit_int32_t frame)
2476 jit_trampoline(frame, 1);
2480 _jit_tramp(jit_state_t *_jit, jit_int32_t frame)
2482 jit_trampoline(frame, 0);
2486 _jit_trampoline(jit_state_t *_jit, jit_int32_t frame, jit_bool_t prolog)
2490 /* Must be called after prolog, actually, just to simplify
2491 * tests and know there is a current function and that
2492 * _jitc->function->self.aoff is at the before any alloca value */
2493 assert(_jitc->tail && _jitc->tail->code == jit_code_prolog);
2495 /* + 24 for 3 possible spilled temporaries (that could be a double) */
2497 #if defined(__hppa__)
2498 frame += _jitc->function->self.aoff;
2500 frame -= _jitc->function->self.aoff;
2502 _jitc->function->frame = frame;
2504 _jitc->function->define_frame = 1;
2506 _jitc->function->assume_frame = 1;
2507 for (regno = 0; regno < _jitc->reglen; regno++)
2508 if (jit_class(_rvs[regno].spec) & jit_class_sav)
2509 jit_regset_setbit(&_jitc->function->regset, regno);
2512 /* Compute initial reglive and regmask set values of a basic block.
2513 * reglive is the set of known live registers
2514 * regmask is the set of registers not referenced in the block
2515 * Registers in regmask might be live.
2518 _jit_setup(jit_state_t *_jit, jit_block_t *block)
2522 unsigned long value;
2524 jit_regset_set_mask(&block->regmask, _jitc->reglen);
2525 for (value = 0; value < _jitc->reglen; ++value)
2526 if (!(jit_class(_rvs[value].spec) & (jit_class_gpr|jit_class_fpr)))
2527 jit_regset_clrbit(&block->regmask, value);
2529 for (node = block->label->next; node; node = node->next) {
2530 switch (node->code) {
2531 case jit_code_label: case jit_code_prolog:
2532 case jit_code_epilog:
2535 /* Check argument registers in reverse order to properly
2536 * handle registers that are both, argument and result */
2537 value = jit_classify(node->code);
2538 if ((value & jit_cc_a2_reg) &&
2539 !(node->w.w & jit_regno_patch) &&
2540 jit_regset_tstbit(&block->regmask, node->w.w)) {
2541 live = !(value & jit_cc_a2_chg);
2542 jit_regset_clrbit(&block->regmask, node->w.w);
2544 jit_regset_setbit(&block->reglive, node->w.w);
2546 if ((value & jit_cc_a1_reg) &&
2547 !(node->v.w & jit_regno_patch) &&
2548 jit_regset_tstbit(&block->regmask, node->v.w)) {
2549 live = !(value & jit_cc_a1_chg);
2550 jit_regset_clrbit(&block->regmask, node->v.w);
2552 jit_regset_setbit(&block->reglive, node->v.w);
2554 if (value & jit_cc_a0_reg) {
2555 live = !(value & jit_cc_a0_chg);
2556 if (value & jit_cc_a0_rlh) {
2557 if (!(node->u.q.l & jit_regno_patch) &&
2558 jit_regset_tstbit(&block->regmask, node->u.q.l)) {
2559 jit_regset_clrbit(&block->regmask, node->u.q.l);
2561 jit_regset_setbit(&block->reglive, node->u.q.l);
2563 if (!(node->u.q.h & jit_regno_patch) &&
2564 jit_regset_tstbit(&block->regmask, node->u.q.h)) {
2565 jit_regset_clrbit(&block->regmask, node->u.q.h);
2567 jit_regset_setbit(&block->reglive, node->u.q.h);
2571 if (!(node->u.w & jit_regno_patch) &&
2572 jit_regset_tstbit(&block->regmask, node->u.w)) {
2573 jit_regset_clrbit(&block->regmask, node->u.w);
2575 jit_regset_setbit(&block->reglive, node->u.w);
2584 /* Update regmask and reglive of blocks at entry point of branch targets
2585 * or normal flow that have a live register not used in this block.
2588 _jit_follow(jit_state_t *_jit, jit_block_t *block)
2594 unsigned long value;
2596 jit_regset_t reglive;
2597 jit_regset_t regmask;
2598 jit_regset_t regtemp;
2600 jit_regset_set(®live, &block->reglive);
2601 jit_regset_set(®mask, &block->regmask);
2602 for (node = block->label->next; node; node = node->next) {
2603 switch (node->code) {
2604 case jit_code_label:
2605 /* Do not consider jmpi and jmpr cannot jump to the
2606 * next instruction. */
2607 next = _jitc->blocks.ptr + node->v.w;
2608 /* Set of live registers in next block that are at unknown
2609 * state in this block. */
2610 jit_regset_and(®temp, ®mask, &next->reglive);
2611 if (jit_regset_set_p(®temp)) {
2612 /* Add live state of next block to current block. */
2613 jit_regset_ior(&block->reglive, &block->reglive, ®temp);
2614 /* Remove from unknown state bitmask. */
2615 jit_regset_com(®temp, ®temp);
2616 jit_regset_and(&block->regmask, &block->regmask, ®temp);
2619 case jit_code_prolog:
2620 case jit_code_epilog:
2622 case jit_code_callr:
2623 value = jit_regno(node->u.w);
2624 if (!(node->u.w & jit_regno_patch)) {
2625 if (jit_regset_tstbit(®mask, value)) {
2626 jit_regset_clrbit(®mask, value);
2627 jit_regset_setbit(®live, value);
2630 case jit_code_calli:
2631 for (value = 0; value < _jitc->reglen; ++value) {
2632 value = jit_regset_scan1(®mask, value);
2633 if (value >= _jitc->reglen)
2635 spec = jit_class(_rvs[value].spec);
2636 if (!(spec & jit_class_sav))
2637 jit_regset_clrbit(®mask, value);
2638 if ((spec & jit_class_arg) && jit_regarg_p(node, value))
2639 jit_regset_setbit(®live, value);
2643 value = jit_classify(node->code);
2644 if (value & jit_cc_a2_reg) {
2645 if (value & jit_cc_a2_rlh) {
2646 if (!(node->w.q.l & jit_regno_patch)) {
2647 /* Assume register is not changed */
2648 if (jit_regset_tstbit(®mask, node->w.q.l))
2649 jit_regset_clrbit(®mask, node->w.q.l);
2651 if (!(node->w.q.h & jit_regno_patch)) {
2652 if (jit_regset_tstbit(®mask, node->w.q.h))
2653 jit_regset_clrbit(®mask, node->w.q.h);
2657 if (value & jit_cc_a2_reg) {
2658 if (!(node->w.w & jit_regno_patch)) {
2659 if (jit_regset_tstbit(®mask, node->w.w)) {
2660 jit_regset_clrbit(®mask, node->w.w);
2661 if (!(value & jit_cc_a2_chg))
2662 jit_regset_setbit(®live, node->w.w);
2668 if (value & jit_cc_a1_reg) {
2669 if (!(node->v.w & jit_regno_patch)) {
2670 if (jit_regset_tstbit(®mask, node->v.w)) {
2671 jit_regset_clrbit(®mask, node->v.w);
2672 if (!(value & jit_cc_a1_chg))
2673 jit_regset_setbit(®live, node->v.w);
2677 if (value & jit_cc_a0_reg) {
2678 if (value & jit_cc_a0_rlh) {
2679 if (!(node->u.q.l & jit_regno_patch)) {
2680 if (jit_regset_tstbit(®mask, node->u.q.l)) {
2681 jit_regset_clrbit(®mask, node->u.q.l);
2682 if (!(value & jit_cc_a0_chg))
2683 jit_regset_setbit(®live, node->u.q.l);
2686 if (!(node->u.q.h & jit_regno_patch)) {
2687 if (jit_regset_tstbit(®mask, node->u.q.h)) {
2688 jit_regset_clrbit(®mask, node->u.q.h);
2689 if (!(value & jit_cc_a0_chg))
2690 jit_regset_setbit(®live, node->u.q.h);
2695 if (!(node->u.w & jit_regno_patch)) {
2696 if (jit_regset_tstbit(®mask, node->u.w)) {
2697 jit_regset_clrbit(®mask, node->u.w);
2698 if (!(value & jit_cc_a0_chg))
2699 jit_regset_setbit(®live, node->u.w);
2704 if (value & jit_cc_a0_jmp) {
2705 if (node->flag & jit_flag_node) {
2707 /* Do not consider jmpi and jmpr cannot jump to the
2708 * next instruction. */
2709 next = _jitc->blocks.ptr + label->v.w;
2710 jit_regset_and(®temp, ®mask, &next->reglive);
2711 if (jit_regset_set_p(®temp)) {
2712 /* Add live state. */
2713 jit_regset_ior(&block->reglive,
2714 &block->reglive, ®temp);
2715 /* Remove from unknown state bitmask. */
2716 jit_regset_com(®temp, ®temp);
2717 jit_regset_and(&block->regmask,
2718 &block->regmask, ®temp);
2723 /* Jump to unknown location.
2724 * This is a pitfall of the implementation.
2725 * Only jmpi to not a jit code should reach here,
2726 * or a jmpr of a computed address.
2727 * Because the implementation needs jit_class_nospill
2728 * registers, must treat jmpr as a function call. This
2729 * means that only JIT_Vn registers can be trusted on
2732 jit_regset_set_ui(®mask, 0);
2733 for (regno = 0; regno < _jitc->reglen; regno++) {
2734 spec = jit_class(_rvs[regno].spec);
2735 if ((spec & (jit_class_gpr|jit_class_fpr)) &&
2736 (spec & jit_class_sav))
2737 jit_regset_setbit(®mask, regno);
2739 /* Assume non callee save registers are live due
2740 * to jump to unknown location. */
2741 /* Treat all callee save as live. */
2742 jit_regset_ior(&block->reglive, ®live, ®mask);
2743 /* Treat anything else as dead. */
2752 /* Follow code generation up to finding a label or end of code.
2753 * When finding a label, update the set of live registers.
2754 * On branches, update based on taken branch or normal flow.
2757 _jit_update(jit_state_t *_jit, jit_node_t *node,
2758 jit_regset_t *live, jit_regset_t *mask)
2762 unsigned long value;
2765 jit_regset_t regtemp;
2767 for (; node; node = node->next) {
2768 if (jit_regset_set_p(mask) == 0)
2770 switch (node->code) {
2771 case jit_code_label:
2772 block = _jitc->blocks.ptr + node->v.w;
2773 jit_regset_and(®temp, mask, &block->reglive);
2774 if (jit_regset_set_p(®temp)) {
2775 /* Add live state. */
2776 jit_regset_ior(live, live, ®temp);
2777 /* Remove from unknown state bitmask. */
2778 jit_regset_com(®temp, ®temp);
2779 jit_regset_and(mask, mask, ®temp);
2782 case jit_code_prolog:
2783 jit_regset_set_ui(mask, 0);
2785 case jit_code_epilog:
2786 jit_regset_set_ui(mask, 0);
2788 case jit_code_callr:
2789 value = jit_regno(node->u.w);
2790 if (!(node->u.w & jit_regno_patch)) {
2791 if (jit_regset_tstbit(mask, value)) {
2792 jit_regset_clrbit(mask, value);
2793 jit_regset_setbit(live, value);
2796 case jit_code_calli:
2797 for (value = 0; value < _jitc->reglen; ++value) {
2798 value = jit_regset_scan1(mask, value);
2799 if (value >= _jitc->reglen)
2801 spec = jit_class(_rvs[value].spec);
2802 if (!(spec & jit_class_sav))
2803 jit_regset_clrbit(mask, value);
2804 if ((spec & jit_class_arg) && jit_regarg_p(node, value))
2805 jit_regset_setbit(live, value);
2809 value = jit_classify(node->code);
2810 if (value & jit_cc_a2_reg) {
2811 if (value & jit_cc_a2_rlh) {
2812 if (!(node->w.q.l & jit_regno_patch)) {
2813 /* Assume register is not changed */
2814 if (jit_regset_tstbit(mask, node->w.q.l))
2815 jit_regset_clrbit(mask, node->w.q.l);
2817 if (!(node->w.q.h & jit_regno_patch)) {
2818 if (jit_regset_tstbit(mask, node->w.q.h))
2819 jit_regset_clrbit(mask, node->w.q.h);
2823 if (!(node->w.w & jit_regno_patch)) {
2824 if (jit_regset_tstbit(mask, node->w.w)) {
2825 jit_regset_clrbit(mask, node->w.w);
2826 if (!(value & jit_cc_a2_chg))
2827 jit_regset_setbit(live, node->w.w);
2832 if (value & jit_cc_a1_reg) {
2833 if (!(node->v.w & jit_regno_patch)) {
2834 if (jit_regset_tstbit(mask, node->v.w)) {
2835 jit_regset_clrbit(mask, node->v.w);
2836 if (!(value & jit_cc_a1_chg))
2837 jit_regset_setbit(live, node->v.w);
2841 if (value & jit_cc_a0_reg) {
2842 if (value & jit_cc_a0_rlh) {
2843 if (!(node->u.q.l & jit_regno_patch)) {
2844 if (jit_regset_tstbit(mask, node->u.q.l)) {
2845 jit_regset_clrbit(mask, node->u.q.l);
2846 if (!(value & jit_cc_a0_chg))
2847 jit_regset_setbit(live, node->u.q.l);
2850 if (!(node->u.q.h & jit_regno_patch)) {
2851 if (jit_regset_tstbit(mask, node->u.q.h)) {
2852 jit_regset_clrbit(mask, node->u.q.h);
2853 if (!(value & jit_cc_a0_chg))
2854 jit_regset_setbit(live, node->u.q.h);
2859 if (!(node->u.w & jit_regno_patch)) {
2860 if (jit_regset_tstbit(mask, node->u.w)) {
2861 jit_regset_clrbit(mask, node->u.w);
2862 if (!(value & jit_cc_a0_chg))
2863 jit_regset_setbit(live, node->u.w);
2868 if (value & jit_cc_a0_jmp) {
2869 if (node->flag & jit_flag_node) {
2871 /* Do not consider jmpi and jmpr cannot jump to the
2872 * next instruction. */
2873 block = _jitc->blocks.ptr + label->v.w;
2874 jit_regset_and(®temp, mask, &block->reglive);
2875 if (jit_regset_set_p(®temp)) {
2876 /* Add live state. */
2877 jit_regset_ior(live, live, ®temp);
2878 /* Remove from unknown state bitmask. */
2879 jit_regset_com(®temp, ®temp);
2880 jit_regset_and(mask, mask, ®temp);
2884 /* Jump to unknown location.
2885 * This is a pitfall of the implementation.
2886 * Only jmpi to not a jit code should reach here,
2887 * or a jmpr of a computed address.
2888 * Because the implementation needs jit_class_nospill
2889 * registers, must treat jmpr as a function call. This
2890 * means that only JIT_Vn registers can be trusted on
2893 jit_regset_set_ui(mask, 0);
2894 for (regno = 0; regno < _jitc->reglen; regno++) {
2895 spec = jit_class(_rvs[regno].spec);
2896 if ((spec & (jit_class_gpr|jit_class_fpr)) &&
2897 (spec & jit_class_sav))
2898 jit_regset_setbit(mask, regno);
2900 /* Assume non callee save registers are live due
2901 * to jump to unknown location. */
2902 /* Treat all callee save as live. */
2903 jit_regset_ior(live, live, mask);
2904 /* Prevent explicitly set as live registers to
2905 * be used as a temporary for the jmpi. */
2906 jit_regset_ior(live, live, &_jitc->explive);
2907 /* Treat anything else as dead. */
2917 _thread_jumps(jit_state_t *_jit)
2924 for (prev = node = _jitc->head; node;) {
2926 switch (node->code) {
2928 if (redundant_jump(prev, node)) {
2932 if (shortcut_jump(prev, node))
2936 case jit_code_callr: case jit_code_calli:
2937 /* non optimizable jump like code */
2940 mask = jit_classify(node->code);
2941 if (mask & jit_cc_a0_jmp) {
2942 if (reverse_jump(prev, node) ||
2943 shortcut_jump(prev, node))
2954 _sequential_labels(jit_state_t *_jit)
2962 for (prev = node = _jitc->head; node; node = next) {
2964 if (node->code == jit_code_label) {
2967 del_label(prev, node);
2970 if (prev != node && prev->code == jit_code_label) {
2971 if ((jump = node->link)) {
2972 for (; jump; jump = link) {
2974 if (jump->code == jit_code_movi)
2978 jump->link = prev->link;
2983 del_label(prev, node);
2987 if (next && next->code == jit_code_label && !next->flag) {
2988 if ((jump = next->link)) {
2989 for (; jump; jump = link) {
2991 if (jump->code == jit_code_movi)
2995 jump->link = node->link;
3000 del_label(node, next);
3010 _split_branches(jit_state_t *_jit)
3016 jit_block_t *blocks;
3020 length = _jitc->blocks.length;
3021 jit_alloc((jit_pointer_t *)&blocks, length * sizeof(jit_block_t));
3022 if ((node = _jitc->head) &&
3023 (node->code == jit_code_label || node->code == jit_code_prolog)) {
3024 block = _jitc->blocks.ptr + node->v.w;
3025 memcpy(blocks, block, sizeof(jit_block_t));
3031 for (node = _jitc->head; node; node = next) {
3032 if ((next = node->next)) {
3033 if (next->code == jit_code_label ||
3034 next->code == jit_code_prolog ||
3035 next->code == jit_code_epilog) {
3036 if (offset >= length) {
3037 jit_realloc((jit_pointer_t *)&blocks,
3038 length * sizeof(jit_block_t),
3039 (length + 16) * sizeof(jit_block_t));
3042 block = _jitc->blocks.ptr + next->v.w;
3043 memcpy(blocks + offset, block, sizeof(jit_block_t));
3044 next->v.w = offset++;
3046 /* split block on branches */
3047 else if (jit_classify(node->code) & jit_cc_a0_jmp) {
3048 label = new_node(jit_code_label);
3051 if (offset >= length) {
3052 jit_realloc((jit_pointer_t *)&blocks,
3053 length * sizeof(jit_block_t),
3054 (length + 16) * sizeof(jit_block_t));
3057 block = blocks + offset;
3058 block->label = label;
3059 label->v.w = offset++;
3060 jit_regset_new(&block->reglive);
3061 jit_regset_new(&block->regmask);
3065 jit_free((jit_pointer_t *)&_jitc->blocks.ptr);
3066 _jitc->blocks.ptr = blocks;
3067 _jitc->blocks.offset = offset;
3068 _jitc->blocks.length = length;
3072 _shortcut_jump(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node)
3079 if (!(node->flag & jit_flag_node))
3081 assert(node->code != jit_code_jmpr);
3082 cond = node->code != jit_code_jmpi;
3084 for (next = jump->next; next; next = next->next) {
3085 switch (next->code) {
3087 if (!(next->flag & jit_flag_node))
3089 if (jump->link == node)
3090 jump->link = node->link;
3092 for (temp = jump->link;
3095 assert(temp != NULL);
3096 temp->link = node->link;
3100 node->link = jump->link;
3106 node->code = jit_code_jmpr;
3107 node->u.w = next->u.w;
3109 node->flag &= ~jit_flag_node;
3111 case jit_code_note: case jit_code_label:
3121 _redundant_jump(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node)
3123 jit_node_t *local_prev;
3124 jit_node_t *local_next;
3126 if (!(node->flag & jit_flag_node))
3128 for (local_prev = node, local_next = node->next;
3130 local_prev = local_next, local_next = local_next->next) {
3132 switch (local_next->code) {
3133 case jit_code_label: case jit_code_epilog:
3134 if (node->u.n == local_next) {
3135 if (local_next->link == node)
3136 local_next->link = node->link;
3138 for (local_prev = local_next->link;
3139 local_prev->link != node;
3140 local_prev = local_prev->link)
3141 assert(local_prev != NULL);
3142 local_prev->link = node->link;
3144 del_node(prev, node);
3148 case jit_code_name: case jit_code_note:
3158 reverse_jump_code(jit_code_t code)
3161 case jit_code_bltr: return (jit_code_bger);
3162 case jit_code_blti: return (jit_code_bgei);
3163 case jit_code_bltr_u: return (jit_code_bger_u);
3164 case jit_code_blti_u: return (jit_code_bgei_u);
3165 case jit_code_bler: return (jit_code_bgtr);
3166 case jit_code_blei: return (jit_code_bgti);
3167 case jit_code_bler_u: return (jit_code_bgtr_u);
3168 case jit_code_blei_u: return (jit_code_bgti_u);
3169 case jit_code_beqr: return (jit_code_bner);
3170 case jit_code_beqi: return (jit_code_bnei);
3171 case jit_code_bger: return (jit_code_bltr);
3172 case jit_code_bgei: return (jit_code_blti);
3173 case jit_code_bger_u: return (jit_code_bltr_u);
3174 case jit_code_bgei_u: return (jit_code_blti_u);
3175 case jit_code_bgtr: return (jit_code_bler);
3176 case jit_code_bgti: return (jit_code_blei);
3177 case jit_code_bgtr_u: return (jit_code_bler_u);
3178 case jit_code_bgti_u: return (jit_code_blei_u);
3179 case jit_code_bner: return (jit_code_beqr);
3180 case jit_code_bnei: return (jit_code_beqi);
3181 case jit_code_bmsr: return (jit_code_bmcr);
3182 case jit_code_bmsi: return (jit_code_bmci);
3183 case jit_code_bmcr: return (jit_code_bmsr);
3184 case jit_code_bmci: return (jit_code_bmsi);
3185 case jit_code_bltr_f: return (jit_code_bunger_f);
3186 case jit_code_blti_f: return (jit_code_bungei_f);
3187 case jit_code_bler_f: return (jit_code_bungtr_f);
3188 case jit_code_blei_f: return (jit_code_bungti_f);
3190 case jit_code_beqr_f: return (jit_code_bner_f);
3191 case jit_code_beqi_f: return (jit_code_bnei_f);
3193 case jit_code_bger_f: return (jit_code_bunltr_f);
3194 case jit_code_bgei_f: return (jit_code_bunlti_f);
3195 case jit_code_bgtr_f: return (jit_code_bunler_f);
3196 case jit_code_bgti_f: return (jit_code_bunlei_f);
3198 case jit_code_bner_f: return (jit_code_beqr_f);
3199 case jit_code_bnei_f: return (jit_code_beqi_f);
3201 case jit_code_bunltr_f: return (jit_code_bger_f);
3202 case jit_code_bunlti_f: return (jit_code_bgei_f);
3203 case jit_code_bunler_f: return (jit_code_bgtr_f);
3204 case jit_code_bunlei_f: return (jit_code_bgti_f);
3206 case jit_code_buneqr_f: return (jit_code_bltgtr_f);
3207 case jit_code_buneqi_f: return (jit_code_bltgti_f);
3209 case jit_code_bunger_f: return (jit_code_bltr_f);
3210 case jit_code_bungei_f: return (jit_code_blti_f);
3211 case jit_code_bungtr_f: return (jit_code_bler_f);
3212 case jit_code_bungti_f: return (jit_code_blei_f);
3214 case jit_code_bltgtr_f: return (jit_code_buneqr_f);
3215 case jit_code_bltgti_f: return (jit_code_buneqi_f);
3217 case jit_code_bordr_f: return (jit_code_bunordr_f);
3218 case jit_code_bordi_f: return (jit_code_bunordi_f);
3219 case jit_code_bunordr_f:return (jit_code_bordr_f);
3220 case jit_code_bunordi_f:return (jit_code_bordi_f);
3221 case jit_code_bltr_d: return (jit_code_bunger_d);
3222 case jit_code_blti_d: return (jit_code_bungei_d);
3223 case jit_code_bler_d: return (jit_code_bungtr_d);
3224 case jit_code_blei_d: return (jit_code_bungti_d);
3226 case jit_code_beqr_d: return (jit_code_bner_d);
3227 case jit_code_beqi_d: return (jit_code_bnei_d);
3229 case jit_code_bger_d: return (jit_code_bunltr_d);
3230 case jit_code_bgei_d: return (jit_code_bunlti_d);
3231 case jit_code_bgtr_d: return (jit_code_bunler_d);
3232 case jit_code_bgti_d: return (jit_code_bunlei_d);
3234 case jit_code_bner_d: return (jit_code_beqr_d);
3235 case jit_code_bnei_d: return (jit_code_beqi_d);
3237 case jit_code_bunltr_d: return (jit_code_bger_d);
3238 case jit_code_bunlti_d: return (jit_code_bgei_d);
3239 case jit_code_bunler_d: return (jit_code_bgtr_d);
3240 case jit_code_bunlei_d: return (jit_code_bgti_d);
3242 case jit_code_buneqr_d: return (jit_code_bltgtr_d);
3243 case jit_code_buneqi_d: return (jit_code_bltgti_d);
3245 case jit_code_bunger_d: return (jit_code_bltr_d);
3246 case jit_code_bungei_d: return (jit_code_blti_d);
3247 case jit_code_bungtr_d: return (jit_code_bler_d);
3248 case jit_code_bungti_d: return (jit_code_blei_d);
3250 case jit_code_bltgtr_d: return (jit_code_buneqr_d);
3251 case jit_code_bltgti_d: return (jit_code_buneqi_d);
3253 case jit_code_bordr_d: return (jit_code_bunordr_d);
3254 case jit_code_bordi_d: return (jit_code_bunordi_d);
3255 case jit_code_bunordr_d:return (jit_code_bordr_d);
3256 case jit_code_bunordi_d:return (jit_code_bordi_d);
3257 case jit_code_boaddr: return (jit_code_bxaddr);
3258 case jit_code_boaddi: return (jit_code_bxaddi);
3259 case jit_code_boaddr_u: return (jit_code_bxaddr_u);
3260 case jit_code_boaddi_u: return (jit_code_bxaddi_u);
3261 case jit_code_bxaddr: return (jit_code_boaddr);
3262 case jit_code_bxaddi: return (jit_code_boaddi);
3263 case jit_code_bxaddr_u: return (jit_code_boaddr_u);
3264 case jit_code_bxaddi_u: return (jit_code_boaddi_u);
3265 case jit_code_bosubr: return (jit_code_bxsubr);
3266 case jit_code_bosubi: return (jit_code_bxsubi);
3267 case jit_code_bosubr_u: return (jit_code_bxsubr_u);
3268 case jit_code_bosubi_u: return (jit_code_bxsubi_u);
3269 case jit_code_bxsubr: return (jit_code_bosubr);
3270 case jit_code_bxsubi: return (jit_code_bosubi);
3271 case jit_code_bxsubr_u: return (jit_code_bosubr_u);
3272 case jit_code_bxsubi_u: return (jit_code_bosubi_u);
3273 default: abort(); /* invalid jump code */
3278 * change common pattern:
3279 * <cond_jump L0> <jump L1> <label L0>
3281 * <reverse_cond_jump L1>
3284 _reverse_jump(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node)
3286 jit_node_t *local_prev;
3287 jit_node_t *local_next;
3288 jit_node_t *local_jump;
3290 if (!(node->flag & jit_flag_node))
3292 /* =><cond_jump L0> <jump L1> <label L0> */
3293 local_next = node->next;
3294 if (local_next->code != jit_code_jmpi ||
3295 !(local_next->flag & jit_flag_node))
3297 /* <cond_jump L0> =><jump L1> <label L0> */
3299 local_jump = local_next->u.n;
3300 for (local_prev = local_next, local_next = local_next->next;
3302 local_prev = local_next, local_next = local_next->next) {
3303 switch (local_next->code) {
3304 case jit_code_label: case jit_code_epilog:
3305 if (node->u.n == local_next) {
3306 if (local_next->link == node)
3307 local_next->link = node->link;
3309 for (local_prev = local_next->link;
3310 local_prev->link != node;
3311 local_prev = local_prev->link)
3312 assert(local_prev != NULL);
3313 local_prev->link = node->link;
3315 del_node(node, node->next);
3316 node->code = reverse_jump_code(node->code);
3317 node->u.n = local_jump;
3318 node->link = local_jump->link;
3319 local_jump->link = node;
3333 _redundant_store(jit_state_t *_jit, jit_node_t *node, jit_bool_t jump)
3344 if (prev->code == jit_code_epilog)
3346 assert(prev->code == jit_code_label);
3347 if ((prev->flag & jit_flag_head) || node->link || prev->link != node)
3348 /* multiple sources */
3350 /* if there are sequential labels it will return below */
3356 regno = jit_regno(node->v.w);
3357 for (iter = prev->next; iter; prev = iter, iter = iter->next) {
3358 switch (iter->code) {
3359 case jit_code_label: case jit_code_prolog:
3360 case jit_code_epilog:
3363 if (regno == jit_regno(iter->u.w)) {
3364 if (iter->flag || iter->v.w != word)
3367 del_node(prev, iter);
3372 spec = jit_classify(iter->code);
3373 if (spec & jit_cc_a0_jmp)
3375 if ((spec & (jit_cc_a0_reg|jit_cc_a0_chg)) ==
3376 (jit_cc_a0_reg|jit_cc_a0_chg)) {
3377 if (spec & jit_cc_a0_rlh) {
3378 if (regno == jit_regno(iter->u.q.l) ||
3379 regno == jit_regno(iter->u.q.h))
3383 if (regno == jit_regno(iter->u.w))
3387 if ((spec & (jit_cc_a1_reg|jit_cc_a1_chg)) ==
3388 (jit_cc_a1_reg|jit_cc_a1_chg)) {
3389 if (regno == jit_regno(iter->v.w))
3392 if ((spec & (jit_cc_a2_reg|jit_cc_a2_chg)) ==
3393 (jit_cc_a2_reg|jit_cc_a2_chg)) {
3394 if (regno == jit_regno(iter->w.w))
3405 _simplify_movr(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node,
3406 jit_int32_t kind, jit_int32_t size)
3412 regno = jit_regno(node->u.w);
3413 right = jit_regno(node->v.w);
3414 value = _jitc->values + regno;
3415 if ((value->kind == jit_kind_register &&
3416 jit_regno(value->base.q.l) == right &&
3417 value->base.q.h == _jitc->gen[right]) ||
3418 (value->kind == kind && _jitc->values[right].kind == kind &&
3419 memcmp(&value->base.w, &_jitc->values[right].base.w, size) == 0)) {
3420 del_node(prev, node);
3423 if (_jitc->values[right].kind == jit_kind_word)
3424 jit_memcpy(value, _jitc->values + right, sizeof(jit_value_t));
3426 value->kind = jit_kind_register;
3427 value->base.q.l = right;
3428 value->base.q.h = _jitc->gen[right];
3430 ++_jitc->gen[regno];
3436 _simplify_movi(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node,
3437 jit_int32_t kind, jit_int32_t size)
3444 regno = jit_regno(node->u.w);
3445 value = _jitc->values + regno;
3446 if (node->flag & jit_flag_node) {
3447 /* set to undefined if value will be patched */
3449 ++_jitc->gen[regno];
3452 if (value->kind == kind) {
3453 if (memcmp(&node->v.w, &value->base.w, size) == 0) {
3454 del_node(prev, node);
3457 spec = jit_class(_rvs[regno].spec);
3458 if (kind == jit_kind_word)
3459 spec &= jit_class_gpr;
3461 spec &= (jit_class_xpr | jit_class_fpr);
3462 for (offset = 0; offset < _jitc->reglen; offset++) {
3463 if (_jitc->values[offset].kind == kind &&
3464 memcmp(&node->v.w, &_jitc->values[offset].base.w, size) == 0 &&
3465 (jit_class(_rvs[offset].spec) & spec) == spec) {
3466 if (kind == jit_kind_word)
3467 node->code = jit_code_movr;
3468 else if (kind == jit_kind_float32)
3469 node->code = jit_code_movr_f;
3471 node->code = jit_code_movr_d;
3473 jit_memcpy(value, _jitc->values + offset, sizeof(jit_value_t));
3474 ++_jitc->gen[regno];
3480 jit_memcpy(&value->base.w, &node->v.w, size);
3481 ++_jitc->gen[regno];
3486 /* simple/safe redundandy test not checking if another register
3487 * holds the same value
3490 _simplify_ldxi(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node)
3496 regno = jit_regno(node->u.w);
3497 right = jit_regno(node->v.w);
3498 value = _jitc->values + regno;
3499 if (regno != right &&
3500 value->kind == jit_kind_code && value->code == node->code &&
3501 value->base.q.l == right && value->base.q.h == _jitc->gen[right] &&
3502 node->w.w == value->disp.w) {
3503 del_node(prev, node);
3506 value->kind = jit_kind_code;
3507 value->code = node->code;
3508 value->base.q.l = right;
3509 value->base.q.h = _jitc->gen[right];
3510 value->disp.w = node->w.w;
3511 ++_jitc->gen[regno];
3517 _simplify_stxi(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node)
3524 regno = jit_regno(node->w.w);
3525 right = jit_regno(node->v.w);
3526 value = _jitc->values + regno;
3528 /* check for redundant store after load */
3529 if (regno != right &&
3530 value->kind == jit_kind_code && value->code == node->code &&
3531 value->base.q.l == right && value->base.q.h == _jitc->gen[right] &&
3532 node->u.w == value->disp.w) {
3533 del_node(prev, node);
3537 /* assume anything can alias, and invalidate tracked values */
3538 for (offset = 0; offset < _jitc->reglen; offset++) {
3539 if (_jitc->values[offset].kind == jit_kind_code) {
3540 _jitc->values[offset].kind = 0;
3541 ++_jitc->gen[offset];
3545 /* no multiple information, so, if set to a constant,
3546 * prefer to keep that information */
3547 if (value->kind == 0) {
3548 switch (node->code) {
3549 /* no information about signed/unsigned either */
3550 case jit_code_stxi_c: value->code = jit_code_ldxi_c; break;
3551 case jit_code_stxi_s: value->code = jit_code_ldxi_s; break;
3552 case jit_code_stxi_i: value->code = jit_code_ldxi_i; break;
3553 case jit_code_stxi_l: value->code = jit_code_ldxi_l; break;
3554 case jit_code_stxi_f: value->code = jit_code_ldxi_f; break;
3555 case jit_code_stxi_d: value->code = jit_code_ldxi_d; break;
3558 value->kind = jit_kind_code;
3559 value->base.q.l = right;
3560 value->base.q.h = _jitc->gen[right];
3561 value->disp.w = node->u.w;
3567 /* usually there should be only one store in the
3568 * jit_get_reg/jit_unget_reg, but properly handle
3569 * multiple ones by moving the save node */
3571 _simplify_spill(jit_state_t *_jit, jit_node_t *node, jit_int32_t regno)
3576 if ((temp = _jitc->spill[regno]) && (save = temp->next) != node) {
3577 temp->next = save->next;
3578 save->next = node->next;
3580 _jitc->spill[regno] = node;
3584 /* checks for simple cases where a register is set more than
3585 * once to the same value, and is a common pattern of calls
3586 * to jit_pushargi and jit_pushargr
3589 _simplify(jit_state_t *_jit)
3599 for (prev = NULL, node = _jitc->head; node; prev = node, node = next) {
3601 switch (node->code) {
3602 case jit_code_label: case jit_code_prolog:
3603 case jit_code_callr: case jit_code_calli:
3605 memset(_jitc->gen, 0, sizeof(jit_int32_t) * _jitc->reglen);
3606 memset(_jitc->values, 0, sizeof(jit_value_t) * _jitc->reglen);
3609 _jitc->spill[jit_regno(node->u.w)] = prev;
3612 regno = jit_regno(node->u.w);
3613 if (register_change_p(node->link->next, node, regno) !=
3615 /* spill not required due to optimizing common
3616 * redundancy case of calling jit_get_reg/jit_unget_reg
3617 * and then setting the register to the value it is
3618 * already holding */
3619 patch_register(node->link->next, node,
3620 jit_regno_patch|regno, regno);
3622 del_node(_jitc->spill[regno], node->link);
3623 del_node(prev, node);
3626 _jitc->spill[regno] = NULL;
3629 regno = jit_regno(node->u.w);
3630 if (simplify_movr(prev, node,
3631 jit_kind_word, sizeof(jit_word_t))) {
3633 simplify_spill(node = prev, regno);
3637 regno = jit_regno(node->u.w);
3638 if (simplify_movi(prev, node,
3639 jit_kind_word, sizeof(jit_word_t))) {
3641 simplify_spill(node = prev, regno);
3644 case jit_code_movr_f:
3645 regno = jit_regno(node->u.w);
3646 if (simplify_movr(prev, node,
3647 jit_kind_float32, sizeof(jit_float32_t))) {
3649 simplify_spill(node = prev, regno);
3652 case jit_code_movi_f:
3653 regno = jit_regno(node->u.w);
3654 if (simplify_movi(prev, node,
3655 jit_kind_float32, sizeof(jit_float32_t))) {
3657 simplify_spill(node = prev, regno);
3660 case jit_code_movr_d:
3661 regno = jit_regno(node->u.w);
3662 if (simplify_movr(prev, node,
3663 jit_kind_float64, sizeof(jit_float64_t))) {
3665 simplify_spill(node = prev, regno);
3668 case jit_code_movi_d:
3669 regno = jit_regno(node->u.w);
3670 if (simplify_movi(prev, node,
3671 jit_kind_float64, sizeof(jit_float64_t))) {
3673 simplify_spill(node = prev, regno);
3676 case jit_code_ldxi_c: case jit_code_ldxi_uc:
3677 case jit_code_ldxi_s: case jit_code_ldxi_us:
3678 case jit_code_ldxi_i: case jit_code_ldxi_ui:
3679 case jit_code_ldxi_l:
3680 case jit_code_ldxi_f: case jit_code_ldxi_d:
3681 regno = jit_regno(node->u.w);
3682 if (simplify_ldxi(prev, node)) {
3684 simplify_spill(node = prev, regno);
3687 case jit_code_stxi_c: case jit_code_stxi_s:
3688 case jit_code_stxi_i: case jit_code_stxi_l:
3689 case jit_code_stxi_f: case jit_code_stxi_d:
3690 regno = jit_regno(node->u.w);
3691 if (simplify_stxi(prev, node)) {
3693 simplify_spill(node = prev, regno);
3697 info = jit_classify(node->code);
3698 if (info & jit_cc_a0_jmp)
3699 /* labels are not implicitly added when not taking
3700 * a conditional branch */
3702 if (info & jit_cc_a0_chg) {
3703 if (info & jit_cc_a0_rlh) {
3704 regno = jit_regno(node->u.q.l);
3705 _jitc->values[regno].kind = 0;
3706 ++_jitc->gen[regno];
3707 regno = jit_regno(node->u.q.h);
3708 _jitc->values[regno].kind = 0;
3709 ++_jitc->gen[regno];
3712 regno = jit_regno(node->u.w);
3713 _jitc->values[regno].kind = 0;
3714 ++_jitc->gen[regno];
3717 if (info & jit_cc_a1_chg) {
3718 regno = jit_regno(node->v.w);
3719 _jitc->values[regno].kind = 0;
3720 ++_jitc->gen[regno];
3722 if (info & jit_cc_a2_chg) {
3724 /* Assume registers are not changed */
3725 if (info & jit_cc_a2_rlh) {
3726 regno = jit_regno(node->w.q.l);
3727 _jitc->values[regno].kind = 0;
3728 ++_jitc->gen[regno];
3729 regno = jit_regno(node->w.q.h);
3730 _jitc->values[regno].kind = 0;
3731 ++_jitc->gen[regno];
3735 regno = jit_regno(node->w.w);
3736 _jitc->values[regno].kind = 0;
3737 ++_jitc->gen[regno];
3749 _register_change_p(jit_state_t *_jit, jit_node_t *node, jit_node_t *link,
3754 for (; node != link; node = node->next) {
3755 switch (node->code) {
3756 case jit_code_label: case jit_code_prolog:
3757 /* lack of extra information so cannot say it is undefined */
3758 return (jit_reg_change);
3759 case jit_code_callr: case jit_code_calli:
3760 if (!(jit_class(_rvs[regno].spec) & jit_class_sav))
3761 return (jit_reg_undef);
3764 value = jit_classify(node->code);
3765 /* lack of extra information */
3766 if (value & (jit_cc_a0_jmp|jit_cc_a0_cnd))
3767 return (jit_reg_change);
3768 else if ((value & (jit_cc_a0_reg|jit_cc_a0_chg)) ==
3769 (jit_cc_a0_reg|jit_cc_a0_chg) &&
3770 (((value & jit_cc_a0_rlh) &&
3771 (node->u.q.l == regno || node->u.q.h == regno)) ||
3772 (!(value & jit_cc_a0_rlh) &&
3773 node->u.w == regno)))
3774 return (jit_reg_change);
3775 else if ((value & jit_cc_a1_reg) && node->v.w == regno &&
3776 (value & jit_cc_a1_chg))
3777 return (jit_reg_change);
3778 else if ((value & jit_cc_a2_reg) && node->w.w == regno &&
3779 (value & jit_cc_a2_chg))
3780 return (jit_reg_change);
3784 return (jit_reg_static);
3787 /* most of this could be done at the same time as generating jit, but
3788 * avoid complications on different cpu backends and patch spill/loads
3789 * here, by simulating jit generation */
3791 _spill_reglive_p(jit_state_t *_jit, jit_node_t *node, jit_int32_t regno)
3793 if (!jit_regset_tstbit(&_jitc->reglive, regno)) {
3794 jit_regset_setbit(&_jitc->regmask, regno);
3795 jit_update(node->next, &_jitc->reglive, &_jitc->regmask);
3796 if (!jit_regset_tstbit(&_jitc->reglive, regno) &&
3797 register_change_p(node->next, node->link, regno) != jit_reg_change)
3805 _patch_registers(jit_state_t *_jit)
3815 _jitc->function = NULL;
3817 jit_reglive_setup();
3818 for (prev = NULL, node = _jitc->head; node; node = next) {
3821 info = jit_classify(node->code);
3822 jit_regarg_set(node, info);
3824 switch (node->code) {
3826 regno = jit_regno(node->u.w);
3827 if (!spill_reglive_p(node, regno)) {
3828 /* register is not live, just remove spill/reload */
3829 jit_regarg_clr(node, info);
3830 node->link->v.w = jit_regload_delete;
3831 del_node(prev, node);
3835 /* try to find a free register of the same class */
3836 spec = jit_class(_rvs[regno].spec) & ~jit_class_arg;
3837 for (value = 0; value < _jitc->reglen; value++) {
3838 if (value != regno &&
3839 ((jit_class(_rvs[value].spec) & spec) &
3840 ~jit_class_arg) == spec &&
3841 !jit_regset_tstbit(&_jitc->regarg, value) &&
3842 !spill_reglive_p(node, value))
3845 if (value < _jitc->reglen) {
3846 jit_regarg_clr(node, info);
3847 patch_register(node->next, node->link,
3848 jit_regno_patch|node->u.w,
3849 jit_regno_patch|value);
3850 /* mark as live just in case there are nested
3851 * register patches, so that next patch will
3852 * not want to use the same register */
3853 jit_regset_setbit(&_jitc->reglive, value);
3854 /* register is not live, just remove spill/reload */
3855 node->link->v.w = jit_regload_isdead;
3856 del_node(prev, node);
3860 /* failed to find a free register */
3861 if (spec & jit_class_gpr) {
3862 if (!_jitc->function->regoff[regno])
3863 _jitc->function->regoff[regno] =
3864 jit_allocai(sizeof(jit_word_t));
3865 #if __WORDSIZE == 32
3866 node->code = jit_code_stxi_i;
3868 node->code = jit_code_stxi_l;
3872 node->code = jit_code_stxi_d;
3873 if (!_jitc->function->regoff[regno])
3874 _jitc->function->regoff[regno] =
3875 jit_allocai(sizeof(jit_float64_t));
3877 node->u.w = _jitc->function->regoff[regno];
3885 regno = jit_regno(node->u.w);
3887 if (node->v.w == jit_regload_isdead)
3888 jit_regset_clrbit(&_jitc->reglive, regno);
3889 del_node(prev, node);
3892 spec = jit_class(_rvs[regno].spec);
3893 if (spec & jit_class_gpr) {
3894 #if __WORDSIZE == 32
3895 node->code = jit_code_ldxi_i;
3897 node->code = jit_code_ldxi_l;
3901 node->code = jit_code_ldxi_d;
3904 node->w.w = _jitc->function->regoff[regno];
3907 case jit_code_prolog:
3908 _jitc->function = _jitc->functions.ptr + node->w.w;
3910 case jit_code_epilog:
3911 _jitc->function = NULL;
3917 jit_regarg_clr(node, info);
3918 /* update register live state */
3925 _patch_register(jit_state_t *_jit, jit_node_t *node, jit_node_t *link,
3926 jit_int32_t regno, jit_int32_t patch)
3930 for (; node != link; node = node->next) {
3931 value = jit_classify(node->code);
3932 if (value & jit_cc_a0_reg) {
3933 if (value & jit_cc_a0_rlh) {
3934 if (node->u.q.l == regno)
3935 node->u.q.l = patch;
3936 if (node->u.q.h == regno)
3937 node->u.q.h = patch;
3940 if (node->u.w == regno)
3944 if ((value & jit_cc_a1_reg) && node->v.w == regno)
3946 if (value & jit_cc_a2_reg) {
3947 if (value & jit_cc_a2_rlh) {
3948 if (node->w.q.l == regno)
3949 node->w.q.l = patch;
3950 if (node->w.q.h == regno)
3951 node->w.q.h = patch;
3954 if (node->w.w == regno)
3961 #if __BYTE_ORDER == __LITTLE_ENDIAN
3962 # define htonr_us(r0,r1) bswapr_us(r0,r1)
3963 # define htonr_ui(r0,r1) bswapr_ui(r0,r1)
3964 # if __WORDSIZE == 64
3965 # define htonr_ul(r0,r1) bswapr_ul(r0,r1)
3968 # define htonr_us(r0,r1) extr_us(r0,r1)
3969 # if __WORDSIZE == 32
3970 # define htonr_ui(r0,r1) movr(r0,r1)
3972 # define htonr_ui(r0,r1) extr_ui(r0,r1)
3973 # define htonr_ul(r0,r1) movr(r0,r1)
3977 static maybe_unused void
3978 generic_bswapr_us(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1);
3979 static maybe_unused void
3980 generic_bswapr_ui(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1);
3981 #if __WORDSIZE == 64
3982 static maybe_unused void
3983 generic_bswapr_ul(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1);
3986 #define patch_alist(revert) _patch_alist(_jit, revert)
3987 static maybe_unused void _patch_alist(jit_state_t *_jit, jit_bool_t revert);
3989 #if defined(__i386__) || defined(__x86_64__)
3990 # include "jit_x86.c"
3991 #elif defined(__mips__)
3992 # include "jit_mips.c"
3993 #elif defined(__arm__)
3994 # include "jit_arm.c"
3995 #elif defined(__powerpc__)
3996 # include "jit_ppc.c"
3997 #elif defined(__sparc__)
3998 # include "jit_sparc.c"
3999 #elif defined(__ia64__)
4000 # include "jit_ia64.c"
4001 #elif defined(__hppa__)
4002 # include "jit_hppa.c"
4003 #elif defined(__aarch64__)
4004 # include "jit_aarch64.c"
4005 #elif defined(__s390__) || defined(__s390x__)
4006 # include "jit_s390.c"
4007 #elif defined(__alpha__)
4008 # include "jit_alpha.c"
4009 #elif defined(__riscv)
4010 # include "jit_riscv.c"
4011 #elif defined(__loongarch__)
4012 # include "jit_loongarch.c"
4015 static maybe_unused void
4016 generic_bswapr_us(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1)
4018 jit_int32_t reg = jit_get_reg(jit_class_gpr);
4020 rshi(rn(reg), r1, 8);
4022 andi(rn(reg), rn(reg), 0xff);
4024 orr(r0, r0, rn(reg));
4029 static maybe_unused void
4030 generic_bswapr_ui(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1)
4032 jit_int32_t reg = jit_get_reg(jit_class_gpr);
4034 rshi(rn(reg), r1, 16);
4036 bswapr_us(rn(reg), rn(reg));
4038 orr(r0, r0, rn(reg));
4043 #if __WORDSIZE == 64
4044 static maybe_unused void
4045 generic_bswapr_ul(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1)
4047 jit_int32_t reg = jit_get_reg(jit_class_gpr);
4049 rshi_u(rn(reg), r1, 32);
4051 bswapr_ui(rn(reg), rn(reg));
4053 orr(r0, r0, rn(reg));
4059 #if defined(stack_framesize)
4060 static maybe_unused void
4061 _patch_alist(jit_state_t *_jit, jit_bool_t revert)
4065 diff = jit_diffsize();
4069 for (node = _jitc->function->alist; node; node = node->link) {
4070 switch (node->code) {
4071 case jit_code_ldxi_c: case jit_code_ldxi_uc:
4072 case jit_code_ldxi_s: case jit_code_ldxi_us:
4073 case jit_code_ldxi_i:
4074 #if __WORDSIZE == 64
4075 case jit_code_ldxi_ui: case jit_code_ldxi_l:
4077 case jit_code_ldxi_f: case jit_code_ldxi_d:
4080 case jit_code_stxi_c: case jit_code_stxi_s:
4081 case jit_code_stxi_i:
4082 #if __WORDSIZE == 64
4083 case jit_code_stxi_l:
4085 case jit_code_stxi_f: case jit_code_stxi_d: