add a thp-based huge page alloc fallback
[pcsx_rearmed.git] / deps / lightning / lib / jit_loongarch.c
1 /*
2  * Copyright (C) 2022-2023  Free Software Foundation, Inc.
3  *
4  * This file is part of GNU lightning.
5  *
6  * GNU lightning is free software; you can redistribute it and/or modify it
7  * under the terms of the GNU Lesser General Public License as published
8  * by the Free Software Foundation; either version 3, or (at your option)
9  * any later version.
10  *
11  * GNU lightning is distributed in the hope that it will be useful, but
12  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
14  * License for more details.
15  *
16  * Authors:
17  *      Paulo Cesar Pereira de Andrade
18  */
19
20 /* callee save                          + variadic arguments
21  * align16(ra+fp+s[0-8]+fs[0-7])        +       align16(a[0-7]) */
22 #define stack_framesize                 (144 + 64)
23
24 #define jit_arg_reg_p(i)                ((i) >= 0 && (i) < 8)
25 #define jit_arg_f_reg_p(i)              ((i) >= 0 && (i) < 8)
26
27 /*
28  * Types
29  */
30 typedef struct jit_pointer_t jit_va_list_t;
31
32 /*
33  * Prototypes
34  */
35 #define compute_framesize()             _compute_framesize(_jit)
36 static void _compute_framesize(jit_state_t*);
37 #define patch(instr, node)              _patch(_jit, instr, node)
38 static void _patch(jit_state_t*,jit_word_t,jit_node_t*);
39
40 #define PROTO                           1
41 # include "jit_loongarch-cpu.c"
42 # include "jit_loongarch-fpu.c"
43 # include "jit_fallback.c"
44 #undef PROTO
45
46 /*
47  * Initialization
48  */
49 jit_cpu_t               jit_cpu;
50 jit_register_t          _rvs[] = {
51     { rc(gpr) | 0x14,                   "$t8" },
52     { rc(gpr) | 0x13,                   "$t7" },
53     { rc(gpr) | 0x12,                   "$t6" },
54     { rc(gpr) | 0x11,                   "$t5" },
55     { rc(gpr) | 0x10,                   "$t4" },
56     { rc(gpr) | 0x0f,                   "$t3" },
57     { rc(gpr) | 0x0e,                   "$t2" },
58     { rc(gpr) | 0x0d,                   "$t1" },
59     { rc(gpr) | 0x0c,                   "$t0" },
60     { rc(sav) | rc(gpr) | 0x1f,         "$s8" },
61     { rc(sav) | rc(gpr) | 0x1e,         "$s7" },
62     { rc(sav) | rc(gpr) | 0x1d,         "$s6" },
63     { rc(sav) | rc(gpr) | 0x1c,         "$s5" },
64     { rc(sav) | rc(gpr) | 0x1b,         "$s4" },
65     { rc(sav) | rc(gpr) | 0x1a,         "$s3" },
66     { rc(sav) | rc(gpr) | 0x19,         "$s2" },
67     { rc(sav) | rc(gpr) | 0x18,         "$s1" },
68     { rc(sav) | rc(gpr) | 0x17,         "$s0" },
69     { rc(arg) | rc(gpr) | 0x0b,         "$a7" },
70     { rc(arg) | rc(gpr) | 0x0a,         "$a6" },
71     { rc(arg) | rc(gpr) | 0x09,         "$a5" },
72     { rc(arg) | rc(gpr) | 0x08,         "$a4" },
73     { rc(arg) | rc(gpr) | 0x07,         "$a3" },
74     { rc(arg) | rc(gpr) | 0x06,         "$a2" },
75     { rc(arg) | rc(gpr) | 0x05,         "$a1" },
76     { rc(arg) | rc(gpr) | 0x04,         "$a0" },
77     { 0x16,                             "$fp" },
78     { 0x15,                             "<reserved>" },
79     { 0x00,                             "$zero" },
80     { 0x01,                             "$ra" },
81     { 0x02,                             "$tp" },
82     { 0x03,                             "$sp" },
83     { rc(fpr) | 0x08,                   "$ft0" },
84     { rc(fpr) | 0x09,                   "$ft1" },
85     { rc(fpr) | 0x0a,                   "$ft2" },
86     { rc(fpr) | 0x0b,                   "$ft3" },
87     { rc(fpr) | 0x0c,                   "$ft4" },
88     { rc(fpr) | 0x0d,                   "$ft5" },
89     { rc(fpr) | 0x0e,                   "$ft6" },
90     { rc(fpr) | 0x0f,                   "$ft7" },
91     { rc(fpr) | 0x10,                   "$ft8" },
92     { rc(fpr) | 0x11,                   "$ft9" },
93     { rc(fpr) | 0x12,                   "$ft10" },
94     { rc(fpr) | 0x13,                   "$ft11" },
95     { rc(fpr) | 0x14,                   "$ft12" },
96     { rc(fpr) | 0x15,                   "$ft13" },
97     { rc(fpr) | 0x16,                   "$ft14" },
98     { rc(fpr) | 0x17,                   "$ft15" },
99     { rc(arg) | rc(fpr) | 0x07,         "$fa7" },
100     { rc(arg) | rc(fpr) | 0x06,         "$fa6" },
101     { rc(arg) | rc(fpr) | 0x05,         "$fa5" },
102     { rc(arg) | rc(fpr) | 0x04,         "$fa4" },
103     { rc(arg) | rc(fpr) | 0x03,         "$fa3" },
104     { rc(arg) | rc(fpr) | 0x02,         "$fa2" },
105     { rc(arg) | rc(fpr) | 0x01,         "$fa1" },
106     { rc(arg) | rc(fpr) | 0x00,         "$fa0" },
107     { rc(sav) | rc(fpr) | 0x1f,         "$fs7" },
108     { rc(sav) | rc(fpr) | 0x1e,         "$fs6" },
109     { rc(sav) | rc(fpr) | 0x1d,         "$fs5" },
110     { rc(sav) | rc(fpr) | 0x1c,         "$fs4" },
111     { rc(sav) | rc(fpr) | 0x1b,         "$fs3" },
112     { rc(sav) | rc(fpr) | 0x1a,         "$fs2" },
113     { rc(sav) | rc(fpr) | 0x19,         "$fs1" },
114     { rc(sav) | rc(fpr) | 0x18,         "$fs0" },
115     { _NOREG,                           "<none>" },
116 };
117
118 static jit_int32_t iregs[] = {
119     _S0, _S1, _S2, _S3, _S4, _S5, _S6, _S7, _S8
120 };
121
122 static jit_int32_t fregs[] = {
123     _FS0, _FS1, _FS2, _FS3, _FS4, _FS5, _FS6, _FS7
124 };
125
126 /*
127  * Implementation
128  */
129 void
130 jit_get_cpu(void)
131 {
132 }
133
134 void
135 _jit_init(jit_state_t *_jit)
136 {
137     _jitc->reglen = jit_size(_rvs) - 1;
138     jit_carry = _NOREG;
139     /* By default assume kernel or cpu will handle unaligned load/store */
140     jit_cpu.unaligned = 0;
141 }
142
143 void
144 _jit_prolog(jit_state_t *_jit)
145 {
146     jit_int32_t          offset;
147
148     if (_jitc->function)
149         jit_epilog();
150     assert(jit_regset_cmp_ui(&_jitc->regarg, 0) == 0);
151     jit_regset_set_ui(&_jitc->regsav, 0);
152     offset = _jitc->functions.offset;
153     if (offset >= _jitc->functions.length) {
154         jit_realloc((jit_pointer_t *)&_jitc->functions.ptr,
155                     _jitc->functions.length * sizeof(jit_function_t),
156                     (_jitc->functions.length + 16) * sizeof(jit_function_t));
157         _jitc->functions.length += 16;
158     }
159     _jitc->function = _jitc->functions.ptr + _jitc->functions.offset++;
160     _jitc->function->self.size = stack_framesize;
161     _jitc->function->self.argi = _jitc->function->self.argf =
162         _jitc->function->self.aoff = _jitc->function->self.alen = 0;
163     _jitc->function->self.call = jit_call_default;
164     jit_alloc((jit_pointer_t *)&_jitc->function->regoff,
165               _jitc->reglen * sizeof(jit_int32_t));
166
167     /* _no_link here does not mean the jit_link() call can be removed
168      * by rewriting as:
169      * _jitc->function->prolog = jit_new_node(jit_code_prolog);
170      */
171     _jitc->function->prolog = jit_new_node_no_link(jit_code_prolog);
172     jit_link(_jitc->function->prolog);
173     _jitc->function->prolog->w.w = offset;
174     _jitc->function->epilog = jit_new_node_no_link(jit_code_epilog);
175     /*  u:      label value
176      *  v:      offset in blocks vector
177      *  w:      offset in functions vector
178      */
179     _jitc->function->epilog->w.w = offset;
180
181     jit_regset_new(&_jitc->function->regset);
182 }
183
184 jit_int32_t
185 _jit_allocai(jit_state_t *_jit, jit_int32_t length)
186 {
187     assert(_jitc->function);
188     jit_check_frame();
189     switch (length) {
190         case 0: case 1:                                         break;
191         case 2:         _jitc->function->self.aoff &= -2;       break;
192         case 3: case 4: _jitc->function->self.aoff &= -4;       break;
193         default:        _jitc->function->self.aoff &= -8;       break;
194     }
195     _jitc->function->self.aoff -= length;
196     if (!_jitc->realize) {
197         jit_inc_synth_ww(allocai, _jitc->function->self.aoff, length);
198         jit_dec_synth();
199     }
200     return (_jitc->function->self.aoff);
201 }
202
203 void
204 _jit_allocar(jit_state_t *_jit, jit_int32_t u, jit_int32_t v)
205 {
206     jit_int32_t          reg;
207     assert(_jitc->function);
208     jit_inc_synth_ww(allocar, u, v);
209     if (!_jitc->function->allocar) {
210         _jitc->function->aoffoff = jit_allocai(sizeof(jit_int32_t));
211         _jitc->function->allocar = 1;
212     }
213     reg = jit_get_reg(jit_class_gpr);
214     jit_negr(reg, v);
215     jit_andi(reg, reg, -16);
216     jit_ldxi_i(u, JIT_FP, _jitc->function->aoffoff);
217     jit_addr(u, u, reg);
218     jit_addr(JIT_SP, JIT_SP, reg);
219     jit_stxi_i(_jitc->function->aoffoff, JIT_FP, u);
220     jit_unget_reg(reg);
221     jit_dec_synth();
222 }
223
224 void
225 _jit_ret(jit_state_t *_jit)
226 {
227     jit_node_t          *instr;
228     assert(_jitc->function);
229     jit_inc_synth(ret);
230     /* jump to epilog */
231     instr = jit_jmpi();
232     jit_patch_at(instr, _jitc->function->epilog);
233     jit_dec_synth();
234 }
235
236 void
237 _jit_retr(jit_state_t *_jit, jit_int32_t u, jit_code_t code)
238 {
239     jit_code_inc_synth_w(code, u);
240     jit_movr(JIT_RET, u);
241     jit_ret();
242     jit_dec_synth();
243 }
244
245 void
246 _jit_reti(jit_state_t *_jit, jit_word_t u, jit_code_t code)
247 {
248     jit_code_inc_synth_w(code, u);
249     jit_movi(JIT_RET, u);
250     jit_ret();
251     jit_dec_synth();
252 }
253
254 void
255 _jit_retr_f(jit_state_t *_jit, jit_int32_t u)
256 {
257     jit_inc_synth_w(retr_f, u);
258     if (JIT_FRET != u)
259         jit_movr_f(JIT_FRET, u);
260     else
261         jit_live(JIT_FRET);
262     jit_ret();
263     jit_dec_synth();
264 }
265
266 void
267 _jit_reti_f(jit_state_t *_jit, jit_float32_t u)
268 {
269     jit_inc_synth_f(reti_f, u);
270     jit_movi_f(JIT_FRET, u);
271     jit_ret();
272     jit_dec_synth();
273 }
274
275 void
276 _jit_retr_d(jit_state_t *_jit, jit_int32_t u)
277 {
278     jit_inc_synth_w(retr_d, u);
279     if (JIT_FRET != u)
280         jit_movr_d(JIT_FRET, u);
281     else
282         jit_live(JIT_FRET);
283     jit_ret();
284     jit_dec_synth();
285 }
286
287 void
288 _jit_reti_d(jit_state_t *_jit, jit_float64_t u)
289 {
290     jit_inc_synth_d(reti_d, u);
291     jit_movi_d(JIT_FRET, u);
292     jit_ret();
293     jit_dec_synth();
294 }
295
296 void
297 _jit_epilog(jit_state_t *_jit)
298 {
299     assert(_jitc->function);
300     assert(_jitc->function->epilog->next == NULL);
301     jit_link(_jitc->function->epilog);
302     _jitc->function = NULL;
303 }
304
305 jit_bool_t
306 _jit_arg_register_p(jit_state_t *_jit, jit_node_t *u)
307 {
308     if (u->code >= jit_code_arg_c && u->code <= jit_code_arg)
309         return (jit_arg_reg_p(u->u.w));
310     assert(u->code == jit_code_arg_f || u->code == jit_code_arg_d);
311     return (jit_arg_f_reg_p(u->u.w) || jit_arg_reg_p(u->u.w - 8));
312 }
313
314 void
315 _jit_ellipsis(jit_state_t *_jit)
316 {
317     jit_inc_synth(ellipsis);
318     jit_check_frame();
319     if (_jitc->prepare) {
320         jit_link_prepare();
321         assert(!(_jitc->function->call.call & jit_call_varargs));
322         _jitc->function->call.call |= jit_call_varargs;
323     }
324     else {
325         jit_link_prolog();
326         assert(!(_jitc->function->self.call & jit_call_varargs));
327         _jitc->function->self.call |= jit_call_varargs;
328         _jitc->function->vagp = _jitc->function->self.argi;
329     }
330     jit_dec_synth();
331 }
332
333 void
334 _jit_va_push(jit_state_t *_jit, jit_int32_t u)
335 {
336     jit_inc_synth_w(va_push, u);
337     jit_pushargr(u);
338     jit_dec_synth();
339 }
340
341 jit_node_t *
342 _jit_arg(jit_state_t *_jit, jit_code_t code)
343 {
344     jit_node_t          *node;
345     jit_int32_t          offset;
346     assert(_jitc->function);
347     assert(!(_jitc->function->self.call & jit_call_varargs));
348 #if STRONG_TYPE_CHECKING
349     assert(code >= jit_code_arg_c && code <= jit_code_arg);
350 #endif
351     if (jit_arg_reg_p(_jitc->function->self.argi))
352         offset = _jitc->function->self.argi++;
353     else {
354         offset = _jitc->function->self.size;
355         _jitc->function->self.size += sizeof(jit_word_t);
356         jit_check_frame();
357     }
358     node = jit_new_node_ww(code, offset,
359                            ++_jitc->function->self.argn);
360     jit_link_prolog();
361     return (node);
362 }
363
364 jit_node_t *
365 _jit_arg_f(jit_state_t *_jit)
366 {
367     jit_node_t          *node;
368     jit_int32_t          offset;
369     assert(_jitc->function);
370     assert(!(_jitc->function->self.call & jit_call_varargs));
371     if (jit_arg_f_reg_p(_jitc->function->self.argf))
372         offset = _jitc->function->self.argf++;
373     else if (jit_arg_reg_p(_jitc->function->self.argi)) {
374         offset = _jitc->function->self.argi++;
375         offset += 8;
376     }
377     else {
378         offset = _jitc->function->self.size;
379         _jitc->function->self.size += sizeof(jit_word_t);
380         jit_check_frame();
381     }
382     node = jit_new_node_ww(jit_code_arg_f, offset,
383                            ++_jitc->function->self.argn);
384     jit_link_prolog();
385     return (node);
386 }
387
388 jit_node_t *
389 _jit_arg_d(jit_state_t *_jit)
390 {
391     jit_node_t          *node;
392     jit_int32_t          offset;
393     assert(_jitc->function);
394     assert(!(_jitc->function->self.call & jit_call_varargs));
395     if (jit_arg_f_reg_p(_jitc->function->self.argf))
396         offset = _jitc->function->self.argf++;
397     else if (jit_arg_reg_p(_jitc->function->self.argi)) {
398         offset = _jitc->function->self.argi++;
399         offset += 8;
400     }
401     else {
402         offset = _jitc->function->self.size;
403         _jitc->function->self.size += sizeof(jit_word_t);
404         jit_check_frame();
405     }
406     node = jit_new_node_ww(jit_code_arg_d, offset,
407                            ++_jitc->function->self.argn);
408     jit_link_prolog();
409     return (node);
410 }
411
412 void
413 _jit_getarg_c(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
414 {
415     assert_arg_type(v->code, jit_code_arg_c);
416     jit_inc_synth_wp(getarg_c, u, v);
417     if (jit_arg_reg_p(v->u.w))
418         jit_extr_c(u, _A0 - v->u.w);
419     else {
420         jit_node_t      *node = jit_ldxi_c(u, JIT_FP, v->u.w);
421         jit_link_alist(node);
422     }
423     jit_dec_synth();
424 }
425
426 void
427 _jit_getarg_uc(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
428 {
429     assert_arg_type(v->code, jit_code_arg_c);
430     jit_inc_synth_wp(getarg_uc, u, v);
431     if (jit_arg_reg_p(v->u.w))
432         jit_extr_uc(u, _A0 - v->u.w);
433     else {
434         jit_node_t      *node = jit_ldxi_uc(u, JIT_FP, v->u.w);
435         jit_link_alist(node);
436     }
437     jit_dec_synth();
438 }
439
440 void
441 _jit_getarg_s(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
442 {
443     assert_arg_type(v->code, jit_code_arg_s);
444     jit_inc_synth_wp(getarg_s, u, v);
445     if (jit_arg_reg_p(v->u.w))
446         jit_extr_s(u, _A0 - v->u.w);
447     else {
448         jit_node_t      *node = jit_ldxi_s(u, JIT_FP, v->u.w);
449         jit_link_alist(node);
450     }
451     jit_dec_synth();
452 }
453
454 void
455 _jit_getarg_us(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
456 {
457     assert_arg_type(v->code, jit_code_arg_s);
458     jit_inc_synth_wp(getarg_us, u, v);
459     if (jit_arg_reg_p(v->u.w))
460         jit_extr_us(u, _A0 - v->u.w);
461     else {
462         jit_node_t      *node = jit_ldxi_us(u, JIT_FP, v->u.w);
463         jit_link_alist(node);
464     }
465     jit_dec_synth();
466 }
467
468 void
469 _jit_getarg_i(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
470 {
471     assert_arg_type(v->code, jit_code_arg_i);
472     jit_inc_synth_wp(getarg_i, u, v);
473     if (jit_arg_reg_p(v->u.w))
474         jit_extr_i(u, _A0 - v->u.w);
475     else {
476         jit_node_t      *node = jit_ldxi_i(u, JIT_FP, v->u.w);
477         jit_link_alist(node);
478     }
479     jit_dec_synth();
480 }
481
482 void
483 _jit_getarg_ui(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
484 {
485     assert_arg_type(v->code, jit_code_arg_i);
486     jit_inc_synth_wp(getarg_ui, u, v);
487     if (jit_arg_reg_p(v->u.w))
488         jit_extr_ui(u, _A0 - v->u.w);
489     else {
490         jit_node_t      *node = jit_ldxi_ui(u, JIT_FP, v->u.w);
491         jit_link_alist(node);
492     }
493     jit_dec_synth();
494 }
495
496 void
497 _jit_getarg_l(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
498 {
499     assert_arg_type(v->code, jit_code_arg_l);
500     jit_inc_synth_wp(getarg_l, u, v);
501     if (jit_arg_reg_p(v->u.w))
502         jit_movr(u, _A0 - v->u.w);
503     else {
504         jit_node_t      *node = jit_ldxi_l(u, JIT_FP, v->u.w);
505         jit_link_alist(node);
506     }
507     jit_dec_synth();
508 }
509
510 void
511 _jit_putargr(jit_state_t *_jit, jit_int32_t u, jit_node_t *v, jit_code_t code)
512 {
513     assert_putarg_type(code, v->code);
514     jit_code_inc_synth_wp(code, u, v);
515     if (jit_arg_reg_p(v->u.w))
516         jit_movr(_A0 - v->u.w, u);
517     else {
518         jit_node_t      *node = jit_stxi(v->u.w, JIT_FP, u);
519         jit_link_alist(node);
520     }
521     jit_dec_synth();
522 }
523
524 void
525 _jit_putargi(jit_state_t *_jit, jit_word_t u, jit_node_t *v, jit_code_t code)
526 {
527     jit_int32_t         regno;
528     assert_putarg_type(code, v->code);
529     jit_code_inc_synth_wp(code, u, v);
530     if (jit_arg_reg_p(v->u.w))
531         jit_movi(_A0 - v->u.w, u);
532     else {
533         jit_node_t      *node;
534         regno = jit_get_reg(jit_class_gpr);
535         jit_movi(regno, u);
536         node = jit_stxi(v->u.w, JIT_FP, regno);
537         jit_link_alist(node);
538         jit_unget_reg(regno);
539     }
540     jit_dec_synth();
541 }
542
543 void
544 _jit_getarg_f(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
545 {
546     assert(v->code == jit_code_arg_f);
547     jit_inc_synth_wp(getarg_f, u, v);
548     if (jit_arg_f_reg_p(v->u.w))
549         jit_movr_f(u, _FA0 - v->u.w);
550     else if (jit_arg_reg_p(v->u.w - 8))
551         jit_movr_w_f(u, JIT_RA0 - (v->u.w - 8));
552     else {
553         jit_node_t      *node = jit_ldxi_f(u, JIT_FP, v->u.w);
554         jit_link_alist(node);
555     }
556     jit_dec_synth();
557 }
558
559 void
560 _jit_putargr_f(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
561 {
562     assert(v->code == jit_code_arg_f);
563     jit_inc_synth_wp(putargr_f, u, v);
564     if (jit_arg_f_reg_p(v->u.w))
565         jit_movr_f(_FA0 - v->u.w, u);
566     else if (jit_arg_reg_p(v->u.w - 8))
567         jit_movr_f_w(JIT_RA0 - (v->u.w - 8), u);
568     else {
569         jit_node_t      *node = jit_stxi_f(v->u.w, JIT_FP, u);
570         jit_link_alist(node);
571     }
572     jit_dec_synth();
573 }
574
575 void
576 _jit_putargi_f(jit_state_t *_jit, jit_float32_t u, jit_node_t *v)
577 {
578     jit_int32_t         regno;
579     assert(v->code == jit_code_arg_f);
580     jit_inc_synth_fp(putargi_f, u, v);
581     if (jit_arg_f_reg_p(v->u.w))
582         jit_movi_f(_FA0 - v->u.w, u);
583     else if (jit_arg_reg_p(v->u.w - 8))
584         jit_movi_f_w(JIT_RA0 - (v->u.w - 8), u);
585     else {
586         jit_node_t      *node;
587         regno = jit_get_reg(jit_class_fpr);
588         jit_movi_f(regno, u);
589         node = jit_stxi_f(v->u.w, JIT_FP, regno);
590         jit_link_alist(node);
591         jit_unget_reg(regno);
592     }
593     jit_dec_synth();
594 }
595
596 void
597 _jit_getarg_d(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
598 {
599     assert(v->code == jit_code_arg_d);
600     jit_inc_synth_wp(getarg_d, u, v);
601     if (jit_arg_f_reg_p(v->u.w))
602         jit_movr_d(u, _FA0 - v->u.w);
603     else if (jit_arg_reg_p(v->u.w - 8))
604         jit_movr_w_d(u, JIT_RA0 - (v->u.w - 8));
605     else {
606         jit_node_t      *node = jit_ldxi_d(u, JIT_FP, v->u.w);
607         jit_link_alist(node);
608     }
609     jit_dec_synth();
610 }
611
612 void
613 _jit_putargr_d(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
614 {
615     assert(v->code == jit_code_arg_d);
616     jit_inc_synth_wp(putargr_d, u, v);
617     if (jit_arg_f_reg_p(v->u.w))
618         jit_movr_d(_FA0 - v->u.w, u);
619     else if (jit_arg_reg_p(v->u.w - 8))
620         jit_movr_d_w(JIT_RA0 - (v->u.w - 8), u);
621     else {
622         jit_node_t      *node = jit_stxi_d(v->u.w, JIT_FP, u);
623         jit_link_alist(node);
624     }
625     jit_dec_synth();
626 }
627
628 void
629 _jit_putargi_d(jit_state_t *_jit, jit_float64_t u, jit_node_t *v)
630 {
631     jit_int32_t         regno;
632     assert(v->code == jit_code_arg_d);
633     jit_inc_synth_dp(putargi_d, u, v);
634     if (jit_arg_f_reg_p(v->u.w))
635         jit_movi_d(_FA0 - v->u.w, u);
636     else if (jit_arg_reg_p(v->u.w - 8))
637         jit_movi_d_w(JIT_RA0 - (v->u.w - 8), u);
638     else {
639         jit_node_t      *node;
640         regno = jit_get_reg(jit_class_fpr);
641         jit_movi_d(regno, u);
642         node = jit_stxi_d(v->u.w, JIT_FP, regno);
643         jit_link_alist(node);
644         jit_unget_reg(regno);
645     }
646     jit_dec_synth();
647 }
648
649 void
650 _jit_pushargr(jit_state_t *_jit, jit_int32_t u, jit_code_t code)
651 {
652     assert(_jitc->function);
653     jit_code_inc_synth_w(code, u);
654     jit_link_prepare();
655     if (jit_arg_reg_p(_jitc->function->call.argi)) {
656         jit_movr(_A0 - _jitc->function->call.argi, u);
657         ++_jitc->function->call.argi;
658     }
659     else {
660         jit_stxi(_jitc->function->call.size, JIT_SP, u);
661         _jitc->function->call.size += sizeof(jit_word_t);
662         jit_check_frame();
663     }
664     jit_dec_synth();
665 }
666
667 void
668 _jit_pushargi(jit_state_t *_jit, jit_word_t u, jit_code_t code)
669 {
670     jit_int32_t          regno;
671     assert(_jitc->function);
672     jit_code_inc_synth_w(code, u);
673     jit_link_prepare();
674     if (jit_arg_reg_p(_jitc->function->call.argi)) {
675         jit_movi(_A0 - _jitc->function->call.argi, u);
676         ++_jitc->function->call.argi;
677     }
678     else {
679         regno = jit_get_reg(jit_class_gpr);
680         jit_movi(regno, u);
681         jit_stxi(_jitc->function->call.size, JIT_SP, regno);
682         jit_unget_reg(regno);
683         _jitc->function->call.size += sizeof(jit_word_t);
684         jit_check_frame();
685     }
686     jit_dec_synth();
687 }
688
689 void
690 _jit_pushargr_f(jit_state_t *_jit, jit_int32_t u)
691 {
692     assert(_jitc->function);
693     jit_inc_synth_w(pushargr_f, u);
694     jit_link_prepare();
695     if (jit_arg_f_reg_p(_jitc->function->call.argf) &&
696         !(_jitc->function->call.call & jit_call_varargs)) {
697         jit_movr_f(_FA0 - _jitc->function->call.argf, u);
698         ++_jitc->function->call.argf;
699     }
700     else if (jit_arg_reg_p(_jitc->function->call.argi)) {
701         jit_movr_f_w(_A0 - _jitc->function->call.argi, u);
702         ++_jitc->function->call.argi;
703     }
704     else {
705         jit_stxi_f(_jitc->function->call.size, JIT_SP, u);
706         _jitc->function->call.size += sizeof(jit_word_t);
707         jit_check_frame();
708     }
709     jit_dec_synth();
710 }
711
712 void
713 _jit_pushargi_f(jit_state_t *_jit, jit_float32_t u)
714 {
715     jit_int32_t         regno;
716     assert(_jitc->function);
717     jit_inc_synth_f(pushargi_f, u);
718     jit_link_prepare();
719     if (jit_arg_f_reg_p(_jitc->function->call.argf) &&
720         !(_jitc->function->call.call & jit_call_varargs)) {
721         jit_movi_f(_FA0 - _jitc->function->call.argf, u);
722         ++_jitc->function->call.argf;
723     }
724     else if (jit_arg_reg_p(_jitc->function->call.argi)) {
725         jit_movi_f_w(_A0 - _jitc->function->call.argi, u);
726         ++_jitc->function->call.argi;
727     }
728     else {
729         regno = jit_get_reg(jit_class_fpr);
730         jit_movi_f(regno, u);
731         jit_stxi_f(_jitc->function->call.size, JIT_SP, regno);
732         jit_unget_reg(regno);
733         _jitc->function->call.size += sizeof(jit_word_t);
734         jit_check_frame();
735     }
736     jit_dec_synth();
737 }
738
739 void
740 _jit_pushargr_d(jit_state_t *_jit, jit_int32_t u)
741 {
742     assert(_jitc->function);
743     jit_inc_synth_w(pushargr_d, u);
744     jit_link_prepare();
745     if (jit_arg_f_reg_p(_jitc->function->call.argf) &&
746         !(_jitc->function->call.call & jit_call_varargs)) {
747         jit_movr_d(_FA0 - _jitc->function->call.argf, u);
748         ++_jitc->function->call.argf;
749     }
750     else if (jit_arg_reg_p(_jitc->function->call.argi)) {
751         jit_movr_d_w(_A0 - _jitc->function->call.argi, u);
752         ++_jitc->function->call.argi;
753     }
754     else {
755         jit_stxi_d(_jitc->function->call.size, JIT_SP, u);
756         _jitc->function->call.size += sizeof(jit_word_t);
757         jit_check_frame();
758     }
759     jit_dec_synth();
760 }
761
762 void
763 _jit_pushargi_d(jit_state_t *_jit, jit_float64_t u)
764 {
765     jit_int32_t         regno;
766     assert(_jitc->function);
767     jit_inc_synth_d(pushargi_d, u);
768     jit_link_prepare();
769     if (jit_arg_f_reg_p(_jitc->function->call.argf) &&
770         !(_jitc->function->call.call & jit_call_varargs)) {
771         jit_movi_d(_FA0 - _jitc->function->call.argf, u);
772         ++_jitc->function->call.argf;
773     }
774     else if (jit_arg_reg_p(_jitc->function->call.argi)) {
775         jit_movi_d_w(_A0 - _jitc->function->call.argi, u);
776         ++_jitc->function->call.argi;
777     }
778     else {
779         regno = jit_get_reg(jit_class_fpr);
780         jit_movi_d(regno, u);
781         jit_stxi_d(_jitc->function->call.size, JIT_SP, regno);
782         jit_unget_reg(regno);
783         _jitc->function->call.size += sizeof(jit_word_t);
784         jit_check_frame();
785     }
786     jit_dec_synth();
787 }
788
789 jit_bool_t
790 _jit_regarg_p(jit_state_t *_jit, jit_node_t *node, jit_int32_t regno)
791 {
792     jit_int32_t         spec;
793     spec = jit_class(_rvs[regno].spec);
794     if (spec & jit_class_arg) {
795         regno = _A0 - regno;
796         if (regno >= 0 && regno < node->v.w)
797             return (1);
798         if (spec & jit_class_fpr) {
799             regno = _FA0 - regno;
800             if (regno >= 0 && regno < node->w.w)
801                 return (1);
802         }
803     }
804     return (0);
805 }
806
807 void
808 _jit_finishr(jit_state_t *_jit, jit_int32_t r0)
809 {
810     jit_node_t          *node;
811     assert(_jitc->function);
812     jit_check_frame();
813     jit_inc_synth_w(finishr, r0);
814     if (_jitc->function->self.alen < _jitc->function->call.size)
815         _jitc->function->self.alen = _jitc->function->call.size;
816     node = jit_callr(r0);
817     node->v.w = _jitc->function->call.argi;
818     node->w.w = _jitc->function->call.argf;
819     _jitc->function->call.argi = _jitc->function->call.argf =
820         _jitc->function->call.size = 0;
821     _jitc->prepare = 0;
822     jit_dec_synth();
823 }
824
825 jit_node_t *
826 _jit_finishi(jit_state_t *_jit, jit_pointer_t i0)
827 {
828     jit_node_t          *node;
829     assert(_jitc->function);
830     jit_check_frame();
831     jit_inc_synth_w(finishi, (jit_word_t)i0);
832     if (_jitc->function->self.alen < _jitc->function->call.size)
833         _jitc->function->self.alen = _jitc->function->call.size;
834     node = jit_calli(i0);
835     node->v.w = _jitc->function->call.argi;
836     node->w.w = _jitc->function->call.argf;
837     _jitc->function->call.argi = _jitc->function->call.argf =
838         _jitc->function->call.size = 0;
839     _jitc->prepare = 0;
840     jit_dec_synth();
841     return (node);
842 }
843
844 void
845 _jit_retval_c(jit_state_t *_jit, jit_int32_t r0)
846 {
847     jit_inc_synth_w(retval_c, r0);
848     jit_extr_c(r0, JIT_RET);
849     jit_dec_synth();
850 }
851
852 void
853 _jit_retval_uc(jit_state_t *_jit, jit_int32_t r0)
854 {
855     jit_inc_synth_w(retval_uc, r0);
856     jit_extr_uc(r0, JIT_RET);
857     jit_dec_synth();
858 }
859
860 void
861 _jit_retval_s(jit_state_t *_jit, jit_int32_t r0)
862 {
863     jit_inc_synth_w(retval_s, r0);
864     jit_extr_s(r0, JIT_RET);
865     jit_dec_synth();
866 }
867
868 void
869 _jit_retval_us(jit_state_t *_jit, jit_int32_t r0)
870 {
871     jit_inc_synth_w(retval_us, r0);
872     jit_extr_us(r0, JIT_RET);
873     jit_dec_synth();
874 }
875
876 void
877 _jit_retval_i(jit_state_t *_jit, jit_int32_t r0)
878 {
879     jit_inc_synth_w(retval_i, r0);
880     jit_extr_i(r0, JIT_RET);
881     jit_dec_synth();
882 }
883
884 void
885 _jit_retval_ui(jit_state_t *_jit, jit_int32_t r0)
886 {
887     jit_inc_synth_w(retval_ui, r0);
888     jit_extr_ui(r0, JIT_RET);
889     jit_dec_synth();
890 }
891
892 void
893 _jit_retval_l(jit_state_t *_jit, jit_int32_t r0)
894 {
895     jit_inc_synth_w(retval_l, r0);
896     if (r0 != JIT_RET)
897     jit_movr(r0, JIT_RET);
898     jit_dec_synth();
899 }
900
901 void
902 _jit_retval_f(jit_state_t *_jit, jit_int32_t r0)
903 {
904     jit_inc_synth_w(retval_f, r0);
905     if (r0 != JIT_FRET)
906         jit_movr_f(r0, JIT_FRET);
907     jit_dec_synth();
908 }
909
910 void
911 _jit_retval_d(jit_state_t *_jit, jit_int32_t r0)
912 {
913     jit_inc_synth_w(retval_d, r0);
914     if (r0 != JIT_FRET)
915         jit_movr_d(r0, JIT_FRET);
916     jit_dec_synth();
917 }
918
919 jit_pointer_t
920 _emit_code(jit_state_t *_jit)
921 {
922     jit_node_t          *node;
923     jit_node_t          *temp;
924     jit_word_t           word;
925     jit_int32_t          value;
926     jit_int32_t          offset;
927     struct {
928         jit_node_t      *node;
929         jit_word_t       word;
930         jit_function_t   func;
931 #if DEVEL_DISASSEMBLER
932         jit_word_t       prevw;
933 #endif
934         jit_int32_t      patch_offset;
935     } undo;
936 #if DEVEL_DISASSEMBLER
937     jit_word_t           prevw;
938 #endif
939
940     _jitc->function = NULL;
941
942     jit_reglive_setup();
943
944     undo.word = 0;
945     undo.node = NULL;
946     undo.patch_offset = 0;
947
948 #define assert_data(node)               /**/
949 #define case_rr(name, type)                                             \
950             case jit_code_##name##r##type:                              \
951                 name##r##type(rn(node->u.w), rn(node->v.w));            \
952                 break
953 #define case_rw(name, type)                                             \
954             case jit_code_##name##i##type:                              \
955                 name##i##type(rn(node->u.w), node->v.w);                \
956                 break
957 #define case_wr(name, type)                                             \
958             case jit_code_##name##i##type:                              \
959                 name##i##type(node->u.w, rn(node->v.w));                \
960                 break
961 #define case_rrr(name, type)                                            \
962             case jit_code_##name##r##type:                              \
963                 name##r##type(rn(node->u.w),                            \
964                               rn(node->v.w), rn(node->w.w));            \
965                 break
966 #define case_rrrr(name, type)                                           \
967             case jit_code_##name##r##type:                              \
968                 name##r##type(rn(node->u.q.l), rn(node->u.q.h),         \
969                               rn(node->v.w), rn(node->w.w));            \
970                 break
971 #define case_rqr(name, type)                                            \
972             case jit_code_##name##r##type:                              \
973                 name##r##type(rn(node->u.w), rn(node->v.q.l),           \
974                               rn(node->v.q.h), rn(node->w.w));          \
975             case jit_code_##name##i##type:                              \
976                 break;
977 #define case_rrw(name, type)                                            \
978             case jit_code_##name##i##type:                              \
979                 name##i##type(rn(node->u.w), rn(node->v.w), node->w.w); \
980                 break
981 #define case_rrrw(name, type)                                           \
982             case jit_code_##name##i##type:                              \
983                 name##i##type(rn(node->u.q.l), rn(node->u.q.h),         \
984                               rn(node->v.w), node->w.w);                \
985                 break
986 #define case_rrf(name)                                                  \
987             case jit_code_##name##i_f:                                  \
988                 assert_data(node);                                      \
989                 name##i_f(rn(node->u.w), rn(node->v.w), node->w.f);     \
990                 break
991 #define case_rrd(name)                                                  \
992             case jit_code_##name##i_d:                                  \
993                 assert_data(node);                                      \
994                 name##i_d(rn(node->u.w), rn(node->v.w),node->w.d);      \
995                 break
996 #define case_wrr(name, type)                                            \
997             case jit_code_##name##i##type:                              \
998                 name##i##type(node->u.w, rn(node->v.w), rn(node->w.w)); \
999                 break
1000 #define case_brr(name, type)                                            \
1001             case jit_code_##name##r##type:                              \
1002                 temp = node->u.n;                                       \
1003                 assert(temp->code == jit_code_label ||                  \
1004                        temp->code == jit_code_epilog);                  \
1005                 if (temp->flag & jit_flag_patch)                        \
1006                     name##r##type(temp->u.w, rn(node->v.w),             \
1007                                   rn(node->w.w));                       \
1008                 else {                                                  \
1009                     word = name##r##type(_jit->pc.w,                    \
1010                                          rn(node->v.w),                 \
1011                                          rn(node->w.w));                \
1012                     patch(word, node);                                  \
1013                 }                                                       \
1014                 break
1015 #define case_brw(name, type)                                            \
1016             case jit_code_##name##i##type:                              \
1017                 temp = node->u.n;                                       \
1018                 assert(temp->code == jit_code_label ||                  \
1019                        temp->code == jit_code_epilog);                  \
1020                 if (temp->flag & jit_flag_patch)                        \
1021                     name##i##type(temp->u.w,                            \
1022                                   rn(node->v.w), node->w.w);            \
1023                 else {                                                  \
1024                     word = name##i##type(_jit->pc.w,                    \
1025                                          rn(node->v.w), node->w.w);     \
1026                     patch(word, node);                                  \
1027                 }                                                       \
1028                 break;
1029 #define case_brf(name)                                                  \
1030             case jit_code_##name##i_f:                                  \
1031                 temp = node->u.n;                                       \
1032                 assert(temp->code == jit_code_label ||                  \
1033                        temp->code == jit_code_epilog);                  \
1034                 if (temp->flag & jit_flag_patch)                        \
1035                     name##i_f(temp->u.w, rn(node->v.w), node->w.f);     \
1036                 else {                                                  \
1037                     word = name##i_f(_jit->pc.w, rn(node->v.w),         \
1038                                      node->w.f);                        \
1039                     patch(word, node);                                  \
1040                 }                                                       \
1041                 break
1042 #define case_brd(name)                                                  \
1043             case jit_code_##name##i_d:                                  \
1044                 temp = node->u.n;                                       \
1045                 assert(temp->code == jit_code_label ||                  \
1046                        temp->code == jit_code_epilog);                  \
1047                 if (temp->flag & jit_flag_patch)                        \
1048                     name##i_d(temp->u.w, rn(node->v.w), node->w.d);     \
1049                 else {                                                  \
1050                     word = name##i_d(_jit->pc.w, rn(node->v.w),         \
1051                                      node->w.d);                        \
1052                     patch(word, node);                                  \
1053                 }                                                       \
1054                 break
1055 #if DEVEL_DISASSEMBLER
1056     prevw = _jit->pc.w;
1057 #endif
1058     for (node = _jitc->head; node; node = node->next) {
1059         if (_jit->pc.uc >= _jitc->code.end)
1060             return (NULL);
1061
1062 #if DEVEL_DISASSEMBLER
1063         node->offset = (jit_uword_t)_jit->pc.w - (jit_uword_t)prevw;
1064         prevw = _jit->pc.w;
1065 #endif
1066         value = jit_classify(node->code);
1067         jit_regarg_set(node, value);
1068         switch (node->code) {
1069             case jit_code_align:
1070                 /* Must align to a power of two */
1071                 assert(!(node->u.w & (node->u.w - 1)));
1072                 if ((word = _jit->pc.w & (node->u.w - 1)))
1073                     nop(node->u.w - word);
1074                 break;
1075             case jit_code_skip:
1076                 nop((node->u.w + 3) & ~3);
1077                 break;
1078             case jit_code_note:         case jit_code_name:
1079                 node->u.w = _jit->pc.w;
1080                 break;
1081             case jit_code_label:
1082                 /* remember label is defined */
1083                 node->flag |= jit_flag_patch;
1084                 node->u.w = _jit->pc.w;
1085                 break;
1086                 case_rrr(add,);
1087                 case_rrw(add,);
1088                 case_rrr(addc,);
1089                 case_rrw(addc,);
1090                 case_rrr(addx,);
1091                 case_rrw(addx,);
1092                 case_rrr(sub,);
1093                 case_rrw(sub,);
1094                 case_rrr(subc,);
1095                 case_rrw(subc,);
1096                 case_rrr(subx,);
1097                 case_rrw(subx,);
1098                 case_rrw(rsb,);
1099                 case_rrr(mul,);
1100                 case_rrw(mul,);
1101                 case_rrr(hmul,);
1102                 case_rrw(hmul,);
1103                 case_rrr(hmul, _u);
1104                 case_rrw(hmul, _u);
1105                 case_rrrr(qmul,);
1106                 case_rrrw(qmul,);
1107                 case_rrrr(qmul, _u);
1108                 case_rrrw(qmul, _u);
1109                 case_rrr(div,);
1110                 case_rrw(div,);
1111                 case_rrr(div, _u);
1112                 case_rrw(div, _u);
1113                 case_rrr(rem,);
1114                 case_rrw(rem,);
1115                 case_rrr(rem, _u);
1116                 case_rrw(rem, _u);
1117                 case_rrrr(qdiv,);
1118                 case_rrrw(qdiv,);
1119                 case_rrrr(qdiv, _u);
1120                 case_rrrw(qdiv, _u);
1121                 case_rrr(lsh,);
1122                 case_rrw(lsh,);
1123 #define qlshr(r0, r1, r2, r3)   fallback_qlshr(r0, r1, r2, r3)
1124 #define qlshi(r0, r1, r2, i0)   fallback_qlshi(r0, r1, r2, i0)
1125 #define qlshr_u(r0, r1, r2, r3) fallback_qlshr_u(r0, r1, r2, r3)
1126 #define qlshi_u(r0, r1, r2, i0) fallback_qlshi_u(r0, r1, r2, i0)
1127                 case_rrrr(qlsh,);
1128                 case_rrrw(qlsh,);
1129                 case_rrrr(qlsh, _u);
1130                 case_rrrw(qlsh, _u);
1131                 case_rrr(rsh,);
1132                 case_rrw(rsh,);
1133                 case_rrr(rsh, _u);
1134                 case_rrw(rsh, _u);
1135 #define qrshr(r0, r1, r2, r3)   fallback_qrshr(r0, r1, r2, r3)
1136 #define qrshi(r0, r1, r2, i0)   fallback_qrshi(r0, r1, r2, i0)
1137 #define qrshr_u(r0, r1, r2, r3) fallback_qrshr_u(r0, r1, r2, r3)
1138 #define qrshi_u(r0, r1, r2, i0) fallback_qrshi_u(r0, r1, r2, i0)
1139                 case_rrrr(qrsh,);
1140                 case_rrrw(qrsh,);
1141                 case_rrrr(qrsh, _u);
1142                 case_rrrw(qrsh, _u);
1143                 case_rrr(lrot,);
1144                 case_rrw(lrot,);
1145                 case_rrr(rrot,);
1146                 case_rrw(rrot,);
1147                 case_rr(neg,);
1148                 case_rr(com,);
1149                 case_rr(clo,);
1150                 case_rr(clz,);
1151                 case_rr(cto,);
1152                 case_rr(ctz,);
1153                 case_rr(rbit,);
1154 #define popcntr(r0, r1) fallback_popcnt(r0, r1)
1155                 case_rr(popcnt,);
1156                 case_rrr(and,);
1157                 case_rrw(and,);
1158                 case_rrr(or,);
1159                 case_rrw(or,);
1160                 case_rrr(xor,);
1161                 case_rrw(xor,);
1162                 case_rr(trunc, _f_i);
1163                 case_rr(trunc, _d_i);
1164                 case_rr(trunc, _f_l);
1165                 case_rr(trunc, _d_l);
1166                 case_rr(ld, _c);
1167                 case_rw(ld, _c);
1168                 case_rr(ld, _uc);
1169                 case_rw(ld, _uc);
1170                 case_rr(ld, _s);
1171                 case_rw(ld, _s);
1172                 case_rr(ld, _us);
1173                 case_rw(ld, _us);
1174                 case_rr(ld, _i);
1175                 case_rw(ld, _i);
1176                 case_rr(ld, _ui);
1177                 case_rw(ld, _ui);
1178                 case_rr(ld, _l);
1179                 case_rw(ld, _l);
1180                 case_rrr(ldx, _c);
1181                 case_rrw(ldx, _c);
1182                 case_rrr(ldx, _uc);
1183                 case_rrw(ldx, _uc);
1184                 case_rrr(ldx, _s);
1185                 case_rrw(ldx, _s);
1186                 case_rrr(ldx, _us);
1187                 case_rrw(ldx, _us);
1188                 case_rrr(ldx, _i);
1189                 case_rrw(ldx, _i);
1190                 case_rrr(ldx, _ui);
1191                 case_rrw(ldx, _ui);
1192                 case_rrr(ldx, _l);
1193                 case_rrw(ldx, _l);
1194             case jit_code_unldr:
1195                 unldr(rn(node->u.w), rn(node->v.w), node->w.w);
1196                 break;
1197             case jit_code_unldi:
1198                 unldi(rn(node->u.w), node->v.w, node->w.w);
1199                 break;
1200             case jit_code_unldr_u:
1201                 unldr_u(rn(node->u.w), rn(node->v.w), node->w.w);
1202                 break;
1203             case jit_code_unldi_u:
1204                 unldi_u(rn(node->u.w), node->v.w, node->w.w);
1205                 break;
1206                 case_rr(st, _c);
1207                 case_wr(st, _c);
1208                 case_rr(st, _s);
1209                 case_wr(st, _s);
1210                 case_rr(st, _i);
1211                 case_wr(st, _i);
1212                 case_rr(st, _l);
1213                 case_wr(st, _l);
1214                 case_rrr(stx, _c);
1215                 case_wrr(stx, _c);
1216                 case_rrr(stx, _s);
1217                 case_wrr(stx, _s);
1218                 case_rrr(stx, _i);
1219                 case_wrr(stx, _i);
1220                 case_rrr(stx, _l);
1221                 case_wrr(stx, _l);
1222             case jit_code_unstr:
1223                 unstr(rn(node->u.w), rn(node->v.w), node->w.w);
1224                 break;
1225             case jit_code_unsti:
1226                 unsti(node->u.w, rn(node->v.w), node->w.w);
1227                 break;
1228                 case_rr(hton, _us);
1229                 case_rr(hton, _ui);
1230                 case_rr(hton, _ul);
1231                 case_rr(bswap, _us);
1232                 case_rr(bswap, _ui);
1233                 case_rr(bswap, _ul);
1234             case jit_code_extr:
1235                 extr(rn(node->u.w), rn(node->v.w), node->w.q.l, node->w.q.h);
1236                 break;
1237             case jit_code_extr_u:
1238                 extr_u(rn(node->u.w), rn(node->v.w), node->w.q.l, node->w.q.h);
1239                 break;
1240             case jit_code_depr:
1241                 depr(rn(node->u.w), rn(node->v.w), node->w.q.l, node->w.q.h);
1242                 break;
1243             case jit_code_depi:
1244                 depi(rn(node->u.w), node->v.w, node->w.q.l, node->w.q.h);
1245                 break;
1246                 case_rr(ext, _c);
1247                 case_rr(ext, _uc);
1248                 case_rr(ext, _s);
1249                 case_rr(ext, _us);
1250                 case_rr(ext, _i);
1251                 case_rr(ext, _ui);
1252             case jit_code_casr:
1253                 casr(rn(node->u.w), rn(node->v.w),
1254                      rn(node->w.q.l), rn(node->w.q.h));
1255                 break;
1256             case jit_code_casi:
1257                 casi(rn(node->u.w), node->v.w,
1258                      rn(node->w.q.l), rn(node->w.q.h));
1259                 break;
1260                 case_rrr(movn,);
1261                 case_rrr(movz,);
1262                 case_rr(mov,);
1263             case jit_code_movi:
1264                 if (node->flag & jit_flag_node) {
1265                     temp = node->v.n;
1266                     if (temp->code == jit_code_data ||
1267                         (temp->code == jit_code_label &&
1268                          (temp->flag & jit_flag_patch)))
1269                         movi(rn(node->u.w), temp->u.w);
1270                     else {
1271                         assert(temp->code == jit_code_label ||
1272                                temp->code == jit_code_epilog);
1273                         word = movi_p(rn(node->u.w), temp->u.w);
1274                         patch(word, node);
1275                     }
1276                 }
1277                 else
1278                     movi(rn(node->u.w), node->v.w);
1279                 break;
1280                 case_rrr(lt,);
1281                 case_rrw(lt,);
1282                 case_rrr(lt, _u);
1283                 case_rrw(lt, _u);
1284                 case_rrr(le,);
1285                 case_rrw(le,);
1286                 case_rrr(le, _u);
1287                 case_rrw(le, _u);
1288                 case_rrr(eq,);
1289                 case_rrw(eq,);
1290                 case_rrr(ge,);
1291                 case_rrw(ge,);
1292                 case_rrr(ge, _u);
1293                 case_rrw(ge, _u);
1294                 case_rrr(gt,);
1295                 case_rrw(gt,);
1296                 case_rrr(gt, _u);
1297                 case_rrw(gt, _u);
1298                 case_rrr(ne,);
1299                 case_rrw(ne,);
1300                 case_brr(blt,);
1301                 case_brw(blt,);
1302                 case_brr(blt, _u);
1303                 case_brw(blt, _u);
1304                 case_brr(ble,);
1305                 case_brw(ble,);
1306                 case_brr(ble, _u);
1307                 case_brw(ble, _u);
1308                 case_brr(beq,);
1309                 case_brw(beq,);
1310                 case_brr(bge,);
1311                 case_brw(bge,);
1312                 case_brr(bge, _u);
1313                 case_brw(bge, _u);
1314                 case_brr(bgt,);
1315                 case_brw(bgt,);
1316                 case_brr(bgt, _u);
1317                 case_brw(bgt, _u);
1318                 case_brr(bne,);
1319                 case_brw(bne,);
1320                 case_brr(boadd,);
1321                 case_brw(boadd,);
1322                 case_brr(boadd, _u);
1323                 case_brw(boadd, _u);
1324                 case_brr(bxadd,);
1325                 case_brw(bxadd,);
1326                 case_brr(bxadd, _u);
1327                 case_brw(bxadd, _u);
1328                 case_brr(bosub,);
1329                 case_brw(bosub,);
1330                 case_brr(bosub, _u);
1331                 case_brw(bosub, _u);
1332                 case_brr(bxsub,);
1333                 case_brw(bxsub,);
1334                 case_brr(bxsub, _u);
1335                 case_brw(bxsub, _u);
1336                 case_brr(bms,);
1337                 case_brw(bms,);
1338                 case_brr(bmc,);
1339                 case_brw(bmc,);
1340                 case_rrr(add, _f);
1341                 case_rrf(add);
1342                 case_rrr(sub, _f);
1343                 case_rrf(sub);
1344                 case_rrf(rsb);
1345                 case_rrr(mul, _f);
1346                 case_rrf(mul);
1347                 case_rrr(div, _f);
1348                 case_rrf(div);
1349                 case_rr(abs, _f);
1350                 case_rr(neg, _f);
1351                 case_rr(sqrt, _f);
1352                 case_rqr(fma, _f);
1353                 case_rqr(fms, _f);
1354                 case_rqr(fnma, _f);
1355                 case_rqr(fnms, _f);
1356                 case_rr(ext, _f);
1357                 case_rr(ld, _f);
1358                 case_rw(ld, _f);
1359                 case_rrr(ldx, _f);
1360                 case_rrw(ldx, _f);
1361             case jit_code_unldr_x:
1362                 unldr_x(rn(node->u.w), rn(node->v.w), node->w.w);
1363                 break;
1364             case jit_code_unldi_x:
1365                 unldi_x(rn(node->u.w), node->v.w, node->w.w);
1366                 break;
1367                 case_rr(st, _f);
1368                 case_wr(st, _f);
1369                 case_rrr(stx, _f);
1370                 case_wrr(stx, _f);
1371             case jit_code_unstr_x:
1372                 unstr_x(rn(node->u.w), rn(node->v.w), node->w.w);
1373                 break;
1374             case jit_code_unsti_x:
1375                 unsti_x(node->u.w, rn(node->v.w), node->w.w);
1376                 break;
1377                 case_rr(mov, _f);
1378             case jit_code_movi_f:
1379                 assert_data(node);
1380                 movi_f(rn(node->u.w), node->v.f);
1381                 break;
1382                 case_rr(ext, _d_f);
1383                 case_rrr(lt, _f);
1384                 case_rrf(lt);
1385                 case_rrr(le, _f);
1386                 case_rrf(le);
1387                 case_rrr(eq, _f);
1388                 case_rrf(eq);
1389                 case_rrr(ge, _f);
1390                 case_rrf(ge);
1391                 case_rrr(gt, _f);
1392                 case_rrf(gt);
1393                 case_rrr(ne, _f);
1394                 case_rrf(ne);
1395                 case_rrr(unlt, _f);
1396                 case_rrf(unlt);
1397                 case_rrr(unle, _f);
1398                 case_rrf(unle);
1399                 case_rrr(uneq, _f);
1400                 case_rrf(uneq);
1401                 case_rrr(unge, _f);
1402                 case_rrf(unge);
1403                 case_rrr(ungt, _f);
1404                 case_rrf(ungt);
1405                 case_rrr(ltgt, _f);
1406                 case_rrf(ltgt);
1407                 case_rrr(ord, _f);
1408                 case_rrf(ord);
1409                 case_rrr(unord, _f);
1410                 case_rrf(unord);
1411                 case_brr(blt, _f);
1412                 case_brf(blt);
1413                 case_brr(ble, _f);
1414                 case_brf(ble);
1415                 case_brr(beq, _f);
1416                 case_brf(beq);
1417                 case_brr(bge, _f);
1418                 case_brf(bge);
1419                 case_brr(bgt, _f);
1420                 case_brf(bgt);
1421                 case_brr(bne, _f);
1422                 case_brf(bne);
1423                 case_brr(bunlt, _f);
1424                 case_brf(bunlt);
1425                 case_brr(bunle, _f);
1426                 case_brf(bunle);
1427                 case_brr(buneq, _f);
1428                 case_brf(buneq);
1429                 case_brr(bunge, _f);
1430                 case_brf(bunge);
1431                 case_brr(bungt, _f);
1432                 case_brf(bungt);
1433                 case_brr(bltgt, _f);
1434                 case_brf(bltgt);
1435                 case_brr(bord, _f);
1436                 case_brf(bord);
1437                 case_brr(bunord, _f);
1438                 case_brf(bunord);
1439                 case_rrr(add, _d);
1440                 case_rrd(add);
1441                 case_rrr(sub, _d);
1442                 case_rrd(sub);
1443                 case_rrd(rsb);
1444                 case_rrr(mul, _d);
1445                 case_rrd(mul);
1446                 case_rrr(div, _d);
1447                 case_rrd(div);
1448                 case_rr(abs, _d);
1449                 case_rr(neg, _d);
1450                 case_rr(sqrt, _d);
1451                 case_rqr(fma, _d);
1452                 case_rqr(fms, _d);
1453                 case_rqr(fnma, _d);
1454                 case_rqr(fnms, _d);
1455                 case_rr(ext, _d);
1456                 case_rr(ld, _d);
1457                 case_rw(ld, _d);
1458                 case_rrr(ldx, _d);
1459                 case_rrw(ldx, _d);
1460                 case_rr(st, _d);
1461                 case_wr(st, _d);
1462                 case_rrr(stx, _d);
1463                 case_wrr(stx, _d);
1464                 case_rr(mov, _d);
1465             case jit_code_movi_d:
1466                 assert_data(node);
1467                 movi_d(rn(node->u.w), node->v.d);
1468                 break;
1469                 case_rr(ext, _f_d);
1470                 case_rrr(lt, _d);
1471                 case_rrd(lt);
1472                 case_rrr(le, _d);
1473                 case_rrd(le);
1474                 case_rrr(eq, _d);
1475                 case_rrd(eq);
1476                 case_rrr(ge, _d);
1477                 case_rrd(ge);
1478                 case_rrr(gt, _d);
1479                 case_rrd(gt);
1480                 case_rrr(ne, _d);
1481                 case_rrd(ne);
1482                 case_rrr(unlt, _d);
1483                 case_rrd(unlt);
1484                 case_rrr(unle, _d);
1485                 case_rrd(unle);
1486                 case_rrr(uneq, _d);
1487                 case_rrd(uneq);
1488                 case_rrr(unge, _d);
1489                 case_rrd(unge);
1490                 case_rrr(ungt, _d);
1491                 case_rrd(ungt);
1492                 case_rrr(ltgt, _d);
1493                 case_rrd(ltgt);
1494                 case_rrr(ord, _d);
1495                 case_rrd(ord);
1496                 case_rrr(unord, _d);
1497                 case_rrd(unord);
1498                 case_brr(blt, _d);
1499                 case_brd(blt);
1500                 case_brr(ble, _d);
1501                 case_brd(ble);
1502                 case_brr(beq, _d);
1503                 case_brd(beq);
1504                 case_brr(bge, _d);
1505                 case_brd(bge);
1506                 case_brr(bgt, _d);
1507                 case_brd(bgt);
1508                 case_brr(bne, _d);
1509                 case_brd(bne);
1510                 case_brr(bunlt, _d);
1511                 case_brd(bunlt);
1512                 case_brr(bunle, _d);
1513                 case_brd(bunle);
1514                 case_brr(buneq, _d);
1515                 case_brd(buneq);
1516                 case_brr(bunge, _d);
1517                 case_brd(bunge);
1518                 case_brr(bungt, _d);
1519                 case_brd(bungt);
1520                 case_brr(bltgt, _d);
1521                 case_brd(bltgt);
1522                 case_brr(bord, _d);
1523                 case_brd(bord);
1524                 case_brr(bunord, _d);
1525                 case_brd(bunord);
1526             case jit_code_jmpr:
1527                 jit_check_frame();
1528                 jmpr(rn(node->u.w));
1529                 break;
1530             case jit_code_jmpi:
1531                 if (node->flag & jit_flag_node) {
1532                     temp = node->u.n;
1533                     assert(temp->code == jit_code_label ||
1534                            temp->code == jit_code_epilog);
1535                     if (temp->flag & jit_flag_patch)
1536                         jmpi(temp->u.w);
1537                     else {
1538                         word = _jit->code.length -
1539                             (_jit->pc.uc - _jit->code.ptr);
1540                         if (can_sign_extend_si26_p(word))
1541                             word = jmpi(_jit->pc.w);
1542                         else
1543                             word = jmpi_p(_jit->pc.w);
1544                         patch(word, node);
1545                     }
1546                 }
1547                 else {
1548                     jit_check_frame();
1549                     jmpi(node->u.w);
1550                 }
1551                 break;
1552             case jit_code_callr:
1553                 jit_check_frame();
1554                 callr(rn(node->u.w));
1555                 break;
1556             case jit_code_calli:
1557                 if (node->flag & jit_flag_node) {
1558                     temp = node->u.n;
1559                     assert(temp->code == jit_code_label ||
1560                            temp->code == jit_code_epilog);
1561                     if (temp->flag & jit_flag_patch)
1562                         calli(temp->u.w);
1563                     else {
1564                         word = _jit->code.length -
1565                             (_jit->pc.uc - _jit->code.ptr);
1566                         if (can_sign_extend_si26_p(word))
1567                             word = calli(_jit->pc.w);
1568                         else
1569                             word = calli_p(_jit->pc.w);
1570                         patch(word, node);
1571                     }
1572                 }
1573                 else {
1574                     jit_check_frame();
1575                     calli(node->u.w);
1576                 }
1577                 break;
1578             case jit_code_prolog:
1579                 _jitc->function = _jitc->functions.ptr + node->w.w;
1580                 undo.node = node;
1581                 undo.word = _jit->pc.w;
1582                 memcpy(&undo.func, _jitc->function, sizeof(undo.func));
1583 #if DEVEL_DISASSEMBLER
1584                 undo.prevw = prevw;
1585 #endif
1586                 undo.patch_offset = _jitc->patches.offset;
1587             restart_function:
1588                 compute_framesize();
1589                 patch_alist(0);
1590                 _jitc->again = 0;
1591                 prolog(node);
1592                 break;
1593             case jit_code_epilog:
1594                 assert(_jitc->function == _jitc->functions.ptr + node->w.w);
1595                 if (_jitc->again) {
1596                     for (temp = undo.node->next;
1597                          temp != node; temp = temp->next) {
1598                         if (temp->code == jit_code_label ||
1599                             temp->code == jit_code_epilog)
1600                             temp->flag &= ~jit_flag_patch;
1601                     }
1602                     temp->flag &= ~jit_flag_patch;
1603                     node = undo.node;
1604                     _jit->pc.w = undo.word;
1605                     /* undo.func.self.aoff and undo.func.regset should not
1606                      * be undone, as they will be further updated, and are
1607                      * the reason of the undo. */
1608                     undo.func.self.aoff = _jitc->function->frame +
1609                         _jitc->function->self.aoff;
1610                     undo.func.need_frame = _jitc->function->need_frame;
1611                     jit_regset_set(&undo.func.regset, &_jitc->function->regset);
1612                     /* allocar information also does not need to be undone */
1613                     undo.func.aoffoff = _jitc->function->aoffoff;
1614                     undo.func.allocar = _jitc->function->allocar;
1615                     /* this will be recomputed but undo anyway to have it
1616                      * better self documented.*/
1617                     undo.func.need_stack = _jitc->function->need_stack;
1618                     memcpy(_jitc->function, &undo.func, sizeof(undo.func));
1619 #if DEVEL_DISASSEMBLER
1620                     prevw = undo.prevw;
1621 #endif
1622                     _jitc->patches.offset = undo.patch_offset;
1623                     patch_alist(1);
1624                     goto restart_function;
1625                 }
1626                 if (node->link && (word = _jit->pc.w & 3))
1627                     nop(4 - word);
1628                 /* remember label is defined */
1629                 node->flag |= jit_flag_patch;
1630                 node->u.w = _jit->pc.w;
1631                 epilog(node);
1632                 _jitc->function = NULL;
1633                 break;
1634             case jit_code_movr_w_f:
1635                 movr_w_f(rn(node->u.w), rn(node->v.w));
1636                 break;
1637             case jit_code_movr_f_w:
1638                 movr_f_w(rn(node->u.w), rn(node->v.w));
1639                 break;
1640             case jit_code_movi_f_w:
1641                 assert_data(node);
1642                 movi_f_w(rn(node->u.w), node->v.f);
1643                 break;
1644             case jit_code_movi_w_f:
1645                 movi_w_f(rn(node->u.w), node->v.w);
1646                 break;
1647             case jit_code_movr_w_d:
1648                 movr_w_d(rn(node->u.w), rn(node->v.w));
1649                 break;
1650             case jit_code_movr_d_w:
1651                 movr_d_w(rn(node->u.w), rn(node->v.w));
1652                 break;
1653             case jit_code_movi_d_w:
1654                 assert_data(node);
1655                 movi_d_w(rn(node->u.w), node->v.d);
1656                 break;
1657             case jit_code_movi_w_d:
1658                 movi_w_d(rn(node->u.w), node->v.w);
1659                 break;
1660             case jit_code_va_start:
1661                 vastart(rn(node->u.w));
1662                 break;
1663             case jit_code_va_arg:
1664                 vaarg(rn(node->u.w), rn(node->v.w));
1665                 break;
1666             case jit_code_va_arg_d:
1667                 vaarg_d(rn(node->u.w), rn(node->v.w));
1668                 break;
1669             case jit_code_live:                 case jit_code_ellipsis:
1670             case jit_code_va_push:
1671             case jit_code_allocai:              case jit_code_allocar:
1672             case jit_code_arg_c:                case jit_code_arg_s:
1673             case jit_code_arg_i:                case jit_code_arg_l:
1674             case jit_code_arg_f:                case jit_code_arg_d:
1675             case jit_code_va_end:
1676             case jit_code_ret:
1677             case jit_code_retr_c:               case jit_code_reti_c:
1678             case jit_code_retr_uc:              case jit_code_reti_uc:
1679             case jit_code_retr_s:               case jit_code_reti_s:
1680             case jit_code_retr_us:              case jit_code_reti_us:
1681             case jit_code_retr_i:               case jit_code_reti_i:
1682             case jit_code_retr_ui:              case jit_code_reti_ui:
1683             case jit_code_retr_l:               case jit_code_reti_l:
1684             case jit_code_retr_f:               case jit_code_reti_f:
1685             case jit_code_retr_d:               case jit_code_reti_d:
1686             case jit_code_getarg_c:             case jit_code_getarg_uc:
1687             case jit_code_getarg_s:             case jit_code_getarg_us:
1688             case jit_code_getarg_i:
1689             case jit_code_getarg_ui:            case jit_code_getarg_l:
1690             case jit_code_getarg_f:             case jit_code_getarg_d:
1691             case jit_code_putargr_c:            case jit_code_putargi_c:
1692             case jit_code_putargr_uc:           case jit_code_putargi_uc:
1693             case jit_code_putargr_s:            case jit_code_putargi_s:
1694             case jit_code_putargr_us:           case jit_code_putargi_us:
1695             case jit_code_putargr_i:            case jit_code_putargi_i:
1696             case jit_code_putargr_ui:           case jit_code_putargi_ui:
1697             case jit_code_putargr_l:            case jit_code_putargi_l:
1698             case jit_code_putargr_f:            case jit_code_putargi_f:
1699             case jit_code_putargr_d:            case jit_code_putargi_d:
1700             case jit_code_pushargr_c:           case jit_code_pushargi_c:
1701             case jit_code_pushargr_uc:          case jit_code_pushargi_uc:
1702             case jit_code_pushargr_s:           case jit_code_pushargi_s:
1703             case jit_code_pushargr_us:          case jit_code_pushargi_us:
1704             case jit_code_pushargr_i:           case jit_code_pushargi_i:
1705             case jit_code_pushargr_ui:          case jit_code_pushargi_ui:
1706             case jit_code_pushargr_l:           case jit_code_pushargi_l:
1707             case jit_code_pushargr_f:           case jit_code_pushargi_f:
1708             case jit_code_pushargr_d:           case jit_code_pushargi_d:
1709             case jit_code_retval_c:             case jit_code_retval_uc:
1710             case jit_code_retval_s:             case jit_code_retval_us:
1711             case jit_code_retval_i:
1712             case jit_code_retval_ui:            case jit_code_retval_l:
1713             case jit_code_retval_f:             case jit_code_retval_d:
1714             case jit_code_prepare:
1715             case jit_code_finishr:              case jit_code_finishi:
1716             case jit_code_negi_f:               case jit_code_absi_f:
1717             case jit_code_sqrti_f:              case jit_code_negi_d:
1718             case jit_code_absi_d:               case jit_code_sqrti_d:
1719                 break;
1720             case jit_code_negi:
1721                 negi(rn(node->u.w), node->v.w);
1722                 break;
1723             case jit_code_comi:
1724                 comi(rn(node->u.w), node->v.w);
1725                 break;
1726             case jit_code_exti_c:
1727                 exti_c(rn(node->u.w), node->v.w);
1728                 break;
1729             case jit_code_exti_uc:
1730                 exti_uc(rn(node->u.w), node->v.w);
1731                 break;
1732             case jit_code_exti_s:
1733                 exti_s(rn(node->u.w), node->v.w);
1734                 break;
1735             case jit_code_exti_us:
1736                 exti_us(rn(node->u.w), node->v.w);
1737                 break;
1738             case jit_code_bswapi_us:
1739                 bswapi_us(rn(node->u.w), node->v.w);
1740                 break;
1741             case jit_code_bswapi_ui:
1742                 bswapi_ui(rn(node->u.w), node->v.w);
1743                 break;
1744             case jit_code_htoni_us:
1745                 htoni_us(rn(node->u.w), node->v.w);
1746                 break;
1747             case jit_code_htoni_ui:
1748                 htoni_ui(rn(node->u.w), node->v.w);
1749                 break;
1750 #if __WORDSIZE == 64
1751             case jit_code_exti_i:
1752                 exti_i(rn(node->u.w), node->v.w);
1753                 break;
1754             case jit_code_exti_ui:
1755                 exti_ui(rn(node->u.w), node->v.w);
1756                 break;
1757             case jit_code_bswapi_ul:
1758                 bswapi_ul(rn(node->u.w), node->v.w);
1759                 break;
1760             case jit_code_htoni_ul:
1761                 htoni_ul(rn(node->u.w), node->v.w);
1762                 break;
1763 #endif
1764             case jit_code_cloi:
1765                 cloi(rn(node->u.w), node->v.w);
1766                 break;
1767             case jit_code_clzi:
1768                 clzi(rn(node->u.w), node->v.w);
1769                 break;
1770             case jit_code_ctoi:
1771                 ctoi(rn(node->u.w), node->v.w);
1772                 break;
1773             case jit_code_ctzi:
1774                 ctzi(rn(node->u.w), node->v.w);
1775                 break;
1776             case jit_code_rbiti:
1777                 rbiti(rn(node->u.w), node->v.w);
1778                 break;
1779             case jit_code_popcnti:
1780                 popcnti(rn(node->u.w), node->v.w);
1781                 break;
1782             case jit_code_exti:
1783                 exti(rn(node->u.w), node->v.w, node->w.q.l, node->w.q.h);
1784                 break;
1785             case jit_code_exti_u:
1786                 exti_u(rn(node->u.w), node->v.w, node->w.q.l, node->w.q.h);
1787                 break;
1788             default:
1789                 abort();
1790         }
1791         if (jit_carry != _NOREG) {
1792             switch (node->code) {
1793                 case jit_code_note:
1794                 case jit_code_addcr:            case jit_code_addci:
1795                 case jit_code_addxr:            case jit_code_addxi:
1796                 case jit_code_subcr:            case jit_code_subci:
1797                 case jit_code_subxr:            case jit_code_subxi:
1798                     break;
1799                 default:
1800                     jit_unget_reg(jit_carry);
1801                     jit_carry = _NOREG;
1802                     break;
1803             }
1804         }
1805         jit_regarg_clr(node, value);
1806         assert(_jitc->regarg == 0 ||
1807                (jit_carry != _NOREG && _jitc->regarg == (1 << jit_carry)));
1808         assert(_jitc->synth == 0);
1809         /* update register live state */
1810         jit_reglive(node);
1811     }
1812 #undef case_brw
1813 #undef case_brr
1814 #undef case_wrr
1815 #undef case_rrw
1816 #undef case_rrr
1817 #undef case_wr
1818 #undef case_rw
1819 #undef case_rr
1820
1821     for (offset = 0; offset < _jitc->patches.offset; offset++) {
1822         node = _jitc->patches.ptr[offset].node;
1823         word = node->code == jit_code_movi ? node->v.n->u.w : node->u.n->u.w;
1824         patch_at(_jitc->patches.ptr[offset].inst, word);
1825     }
1826
1827     jit_flush(_jit->code.ptr, _jit->pc.uc);
1828
1829     return (_jit->code.ptr);
1830 }
1831
1832 #define CODE                            1
1833 #  include "jit_loongarch-cpu.c"
1834 #  include "jit_loongarch-fpu.c"
1835 #  include "jit_fallback.c"
1836 #undef CODE
1837
1838 void
1839 jit_flush(void *fptr, void *tptr)
1840 {
1841 #if defined(__GNUC__)
1842     jit_word_t          f, t, s;
1843
1844     s = sysconf(_SC_PAGE_SIZE);
1845     f = (jit_word_t)fptr & -s;
1846     t = (((jit_word_t)tptr) + s - 1) & -s;
1847     __clear_cache((void *)f, (void *)t);
1848 #endif
1849 }
1850
1851 void
1852 _emit_ldxi(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1, jit_word_t i0)
1853 {
1854     ldxi(rn(r0), rn(r1), i0);
1855 }
1856
1857 void
1858 _emit_stxi(jit_state_t *_jit, jit_word_t i0, jit_int32_t r0, jit_int32_t r1)
1859 {
1860     stxi(i0, rn(r0), rn(r1));
1861 }
1862
1863 void
1864 _emit_ldxi_d(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1, jit_word_t i0)
1865 {
1866     ldxi_d(rn(r0), rn(r1), i0);
1867 }
1868
1869 void
1870 _emit_stxi_d(jit_state_t *_jit, jit_word_t i0, jit_int32_t r0, jit_int32_t r1)
1871 {
1872     stxi_d(i0, rn(r0), rn(r1));
1873 }
1874
1875 static void
1876 _compute_framesize(jit_state_t *_jit)
1877 {
1878     jit_int32_t         reg;
1879     _jitc->framesize = 16;      /* ra+fp */
1880     for (reg = 0; reg < jit_size(iregs); reg++)
1881         if (jit_regset_tstbit(&_jitc->function->regset, iregs[reg]))
1882             _jitc->framesize += sizeof(jit_word_t);
1883
1884     for (reg = 0; reg < jit_size(fregs); reg++)
1885         if (jit_regset_tstbit(&_jitc->function->regset, fregs[reg]))
1886             _jitc->framesize += sizeof(jit_float64_t);
1887
1888     /* Space to store variadic arguments */
1889     if (_jitc->function->self.call & jit_call_varargs)
1890         _jitc->framesize += (8 - _jitc->function->vagp) * 8;
1891
1892     /* Make sure functions called have a 16 byte aligned stack */
1893     _jitc->framesize = (_jitc->framesize + 15) & -16;
1894 }
1895
1896 static void
1897 _patch(jit_state_t *_jit, jit_word_t instr, jit_node_t *node)
1898 {
1899     jit_int32_t          flag;
1900
1901     assert(node->flag & jit_flag_node);
1902     if (node->code == jit_code_movi)
1903         flag = node->v.n->flag;
1904     else
1905         flag = node->u.n->flag;
1906     assert(!(flag & jit_flag_patch));
1907     if (_jitc->patches.offset >= _jitc->patches.length) {
1908         jit_realloc((jit_pointer_t *)&_jitc->patches.ptr,
1909                     _jitc->patches.length * sizeof(jit_patch_t),
1910                     (_jitc->patches.length + 1024) * sizeof(jit_patch_t));
1911         _jitc->patches.length += 1024;
1912     }
1913     _jitc->patches.ptr[_jitc->patches.offset].inst = instr;
1914     _jitc->patches.ptr[_jitc->patches.offset].node = node;
1915     ++_jitc->patches.offset;
1916 }