2 * Copyright (C) 2013-2019 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>
24 # define NUM_FLOAT_REG_ARGS 2
26 # define NUM_FLOAT_REG_ARGS 4
28 #define jit_arg_reg_p(i) ((i) >= 0 && (i) < 5)
29 #define jit_arg_f_reg_p(i) ((i) >= 0 && (i) < NUM_FLOAT_REG_ARGS)
34 typedef struct jit_va_list {
35 /* The offsets are "1" based, as addresses are fixed in the
36 * standard stack frame format. */
40 /* Easier when there is an explicitly defined type...
42 type = struct __va_list_tag {
45 void *__overflow_arg_area;
46 void *__reg_save_area;
48 Note that gopff (__gpr) and fpoff (__fpr) are jit_word_t equivalent
49 and, again, "1" (unit) based, so must be adjusted at va_arg time.
54 /* For variadic functions, always allocate space to save callee
56 * Note that s390 has a standard stack frame format that lightning
57 * does not fully comply with, but for variadic functions it must,
58 * for those (variadic) do not use the "empty" spaces for any
59 * callee save fpr register, but save them after the va_list
60 * space; and use the standard stack frame format, as required
61 * by variadic functions (and have a compatible va_list pointer). */
75 #define jit_get_reg_pair() _jit_get_reg_pair(_jit)
76 static jit_int32_t _jit_get_reg_pair(jit_state_t*);
77 #define jit_unget_reg_pair(regno) _jit_unget_reg_pair(_jit,regno)
78 static void _jit_unget_reg_pair(jit_state_t*,jit_int32_t);
79 #define jit_get_reg_but_zero(flags) _jit_get_reg_but_zero(_jit,flags)
80 static jit_int32_t _jit_get_reg_but_zero(jit_state_t*,jit_int32_t);
81 #define jit_unget_reg_but_zero(reg) jit_unget_reg(reg)
82 #define patch(instr, node) _patch(_jit, instr, node)
83 static void _patch(jit_state_t*,jit_word_t,jit_node_t*);
86 extern void __clear_cache(void *, void *);
89 # include "jit_s390-cpu.c"
90 # include "jit_s390-fpu.c"
91 # include "jit_fallback.c"
97 jit_register_t _rvs[] = {
98 { rc(gpr) | 0x0, "%r0" },
99 { rc(gpr) | 0x1, "%r1" },
100 { rc(gpr) | rc(sav) | 0xc, "%r12" },
101 { rc(gpr) | rc(sav) | 0xb, "%r11" },
102 { rc(gpr) | rc(sav) | 0xa, "%r10" },
103 { rc(gpr) | rc(sav) | 0x9, "%r9" },
104 { rc(gpr) | rc(sav) | 0x8, "%r8" },
105 { rc(gpr) | rc(sav) | 0x7, "%r7" },
106 { rc(gpr) | rc(arg) | rc(sav) | 0x6,"%r6" },
107 { rc(gpr) | rc(arg) | 0x5, "%r5" },
108 { rc(gpr) | rc(arg) | 0x4, "%r4" },
109 { rc(gpr) | rc(arg) | 0x3, "%r3" },
110 { rc(gpr) | rc(arg) | 0x2, "%r2" },
111 { rc(sav) | 0xd, "%r13" }, /* used as JIT_FP */
113 { rc(sav) | 0xf, "%r15" },
114 { rc(fpr) | 0x1, "%f1" },
115 { rc(fpr) | 0x3, "%f3" },
116 { rc(fpr) | 0x5, "%f5" },
117 { rc(fpr) | 0x7, "%f7" },
118 { rc(fpr) | rc(sav) | 0xe, "%f14" },
119 /* Do not use as temporary to simplify stack layout */
121 { rc(fpr) | rc(sav) | 0x8, "%f8" },
122 { rc(fpr) | rc(sav) | 0x9, "%f9" },
123 { rc(fpr) | rc(sav) | 0xa, "%f10" },
124 { rc(fpr) | rc(sav) | 0xb, "%f11" },
125 { rc(fpr) | rc(sav) | 0xc, "%f12" },
126 { rc(fpr) | rc(sav) | 0xd, "%f13" },
127 { rc(fpr) | rc(arg) | 0x6, "%f6" },
128 { rc(fpr) | rc(arg) | 0x4, "%f4" },
129 { rc(fpr) | rc(arg) | 0x2, "%f2" },
130 { rc(fpr) | rc(arg) | 0x0, "%f0" },
131 { _NOREG, "<none>" },
143 _jit_init(jit_state_t *_jit)
145 _jitc->reglen = jit_size(_rvs) - 1;
149 _jit_prolog(jit_state_t *_jit)
155 assert(jit_regset_cmp_ui(&_jitc->regarg, 0) == 0);
156 jit_regset_set_ui(&_jitc->regsav, 0);
157 offset = _jitc->functions.offset;
158 if (offset >= _jitc->functions.length) {
159 jit_realloc((jit_pointer_t *)&_jitc->functions.ptr,
160 _jitc->functions.length * sizeof(jit_function_t),
161 (_jitc->functions.length + 16) * sizeof(jit_function_t));
162 _jitc->functions.length += 16;
164 _jitc->function = _jitc->functions.ptr + _jitc->functions.offset++;
165 _jitc->function->self.size = stack_framesize;
166 _jitc->function->self.argi = _jitc->function->self.argf =
167 _jitc->function->self.aoff = _jitc->function->self.alen = 0;
168 /* preallocate 8 bytes if not using a constant data buffer */
170 _jitc->function->self.aoff = -8;
171 _jitc->function->self.call = jit_call_default;
172 jit_alloc((jit_pointer_t *)&_jitc->function->regoff,
173 _jitc->reglen * sizeof(jit_int32_t));
175 /* _no_link here does not mean the jit_link() call can be removed
177 * _jitc->function->prolog = jit_new_node(jit_code_prolog);
179 _jitc->function->prolog = jit_new_node_no_link(jit_code_prolog);
180 jit_link(_jitc->function->prolog);
181 _jitc->function->prolog->w.w = offset;
182 _jitc->function->epilog = jit_new_node_no_link(jit_code_epilog);
184 * v: offset in blocks vector
185 * w: offset in functions vector
187 _jitc->function->epilog->w.w = offset;
189 jit_regset_new(&_jitc->function->regset);
193 _jit_allocai(jit_state_t *_jit, jit_int32_t length)
195 assert(_jitc->function);
197 case 0: case 1: break;
198 case 2: _jitc->function->self.aoff &= -2; break;
199 case 3: case 4: _jitc->function->self.aoff &= -4; break;
200 default: _jitc->function->self.aoff &= -8; break;
202 _jitc->function->self.aoff -= length;
203 if (!_jitc->realize) {
204 jit_inc_synth_ww(allocai, _jitc->function->self.aoff, length);
207 return (_jitc->function->self.aoff);
211 _jit_allocar(jit_state_t *_jit, jit_int32_t u, jit_int32_t v)
214 assert(_jitc->function);
215 jit_inc_synth_ww(allocar, u, v);
216 if (!_jitc->function->allocar) {
217 _jitc->function->aoffoff = jit_allocai(sizeof(jit_int32_t));
218 _jitc->function->allocar = 1;
220 reg = jit_get_reg(jit_class_gpr);
222 jit_andi(reg, reg, -8);
223 jit_ldxi_i(u, JIT_FP, _jitc->function->aoffoff);
225 jit_addr(JIT_SP, JIT_SP, reg);
226 jit_stxi_i(_jitc->function->aoffoff, JIT_FP, u);
232 _jit_ret(jit_state_t *_jit)
235 assert(_jitc->function);
239 jit_patch_at(instr, _jitc->function->epilog);
244 _jit_retr(jit_state_t *_jit, jit_int32_t u)
246 jit_inc_synth_w(retr, u);
247 jit_movr(JIT_RET, u);
253 _jit_reti(jit_state_t *_jit, jit_word_t u)
255 jit_inc_synth_w(reti, u);
256 jit_movi(JIT_RET, u);
262 _jit_retr_f(jit_state_t *_jit, jit_int32_t u)
264 jit_inc_synth_w(retr_f, u);
265 jit_movr_f(JIT_FRET, u);
271 _jit_reti_f(jit_state_t *_jit, jit_float32_t u)
273 jit_inc_synth_f(reti_f, u);
274 jit_movi_f(JIT_FRET, u);
280 _jit_retr_d(jit_state_t *_jit, jit_int32_t u)
282 jit_inc_synth_w(retr_d, u);
283 jit_movr_d(JIT_FRET, u);
289 _jit_reti_d(jit_state_t *_jit, jit_float64_t u)
291 jit_inc_synth_d(reti_d, u);
292 jit_movi_d(JIT_FRET, u);
298 _jit_epilog(jit_state_t *_jit)
300 assert(_jitc->function);
301 assert(_jitc->function->epilog->next == NULL);
302 jit_link(_jitc->function->epilog);
303 _jitc->function = NULL;
307 _jit_arg_register_p(jit_state_t *_jit, jit_node_t *u)
309 if (u->code == jit_code_arg)
310 return (jit_arg_reg_p(u->u.w));
311 assert(u->code == jit_code_arg_f || u->code == jit_code_arg_d);
312 return (jit_arg_f_reg_p(u->u.w));
316 _jit_ellipsis(jit_state_t *_jit)
318 jit_inc_synth(ellipsis);
319 if (_jitc->prepare) {
321 assert(!(_jitc->function->call.call & jit_call_varargs));
322 _jitc->function->call.call |= jit_call_varargs;
326 assert(!(_jitc->function->self.call & jit_call_varargs));
327 _jitc->function->self.call |= jit_call_varargs;
329 /* Allocate va_list like object in the stack. */
330 _jitc->function->vaoff = jit_allocai(sizeof(jit_va_list_t));
332 /* Initialize gp offset in save area. */
333 if (jit_arg_reg_p(_jitc->function->self.argi))
334 _jitc->function->vagp = _jitc->function->self.argi;
336 _jitc->function->vagp = 5;
338 /* Initialize fp offset in save area. */
339 if (jit_arg_f_reg_p(_jitc->function->self.argf))
340 _jitc->function->vafp = _jitc->function->self.argf;
342 _jitc->function->vafp = NUM_FLOAT_REG_ARGS;
348 _jit_va_push(jit_state_t *_jit, jit_int32_t u)
350 jit_inc_synth_w(va_push, u);
356 _jit_arg(jit_state_t *_jit)
360 assert(_jitc->function);
361 if (jit_arg_reg_p(_jitc->function->self.argi))
362 offset = _jitc->function->self.argi++;
364 offset = _jitc->function->self.size;
365 _jitc->function->self.size += sizeof(jit_word_t);
367 node = jit_new_node_ww(jit_code_arg, offset,
368 ++_jitc->function->self.argn);
374 _jit_arg_f(jit_state_t *_jit)
378 assert(_jitc->function);
379 if (jit_arg_f_reg_p(_jitc->function->self.argf))
380 offset = _jitc->function->self.argf++;
382 offset = _jitc->function->self.size;
383 _jitc->function->self.size += sizeof(jit_word_t);
385 node = jit_new_node_ww(jit_code_arg_f, offset,
386 ++_jitc->function->self.argn);
392 _jit_arg_d(jit_state_t *_jit)
396 assert(_jitc->function);
397 if (jit_arg_f_reg_p(_jitc->function->self.argf))
398 offset = _jitc->function->self.argf++;
400 offset = _jitc->function->self.size;
401 _jitc->function->self.size += sizeof(jit_float64_t);
403 node = jit_new_node_ww(jit_code_arg_d, offset,
404 ++_jitc->function->self.argn);
410 _jit_getarg_c(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
412 assert(v->code == jit_code_arg);
413 jit_inc_synth_wp(getarg_c, u, v);
414 if (jit_arg_reg_p(v->u.w))
415 jit_extr_c(u, _R2 - v->u.w);
417 jit_ldxi_c(u, JIT_FP,
418 v->u.w + (__WORDSIZE >> 3) - sizeof(jit_int8_t));
423 _jit_getarg_uc(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
425 assert(v->code == jit_code_arg);
426 jit_inc_synth_wp(getarg_uc, u, v);
427 if (jit_arg_reg_p(v->u.w))
428 jit_extr_uc(u, _R2 - v->u.w);
430 jit_ldxi_uc(u, JIT_FP,
431 v->u.w + (__WORDSIZE >> 3) - sizeof(jit_uint8_t));
436 _jit_getarg_s(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
438 assert(v->code == jit_code_arg);
439 jit_inc_synth_wp(getarg_s, u, v);
440 if (jit_arg_reg_p(v->u.w))
441 jit_extr_s(u, _R2 - v->u.w);
443 jit_ldxi_s(u, JIT_FP,
444 v->u.w + (__WORDSIZE >> 3) - sizeof(jit_int16_t));
449 _jit_getarg_us(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
451 assert(v->code == jit_code_arg);
452 jit_inc_synth_wp(getarg_us, u, v);
453 if (jit_arg_reg_p(v->u.w))
454 jit_extr_us(u, _R2 - v->u.w);
456 jit_ldxi_us(u, JIT_FP,
457 v->u.w + (__WORDSIZE >> 3) - sizeof(jit_uint16_t));
462 _jit_getarg_i(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
464 assert(v->code == jit_code_arg);
465 jit_inc_synth_wp(getarg_i, u, v);
466 if (jit_arg_reg_p(v->u.w)) {
468 jit_movr(u, _R2 - v->u.w);
470 jit_extr_i(u, _R2 - v->u.w);
474 jit_ldxi_i(u, JIT_FP,
475 v->u.w + (__WORDSIZE >> 3) - sizeof(jit_int32_t));
481 _jit_getarg_ui(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
483 assert(v->code == jit_code_arg);
484 jit_inc_synth_wp(getarg_ui, u, v);
485 if (jit_arg_reg_p(v->u.w))
486 jit_extr_ui(u, _R2 - v->u.w);
488 jit_ldxi_ui(u, JIT_FP,
489 v->u.w + (__WORDSIZE >> 3) - sizeof(jit_uint32_t));
494 _jit_getarg_l(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
496 assert(v->code == jit_code_arg);
497 jit_inc_synth_wp(getarg_l, u, v);
498 if (jit_arg_reg_p(v->u.w))
499 jit_movr(u, _R2 - v->u.w);
501 jit_ldxi_l(u, JIT_FP, v->u.w);
507 _jit_putargr(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
509 assert(v->code == jit_code_arg);
510 jit_inc_synth_wp(putargr, u, v);
511 if (jit_arg_reg_p(v->u.w))
512 jit_movr(_R2 - v->u.w, u);
514 jit_stxi(v->u.w, JIT_FP, u);
519 _jit_putargi(jit_state_t *_jit, jit_word_t u, jit_node_t *v)
522 assert(v->code == jit_code_arg);
523 jit_inc_synth_wp(putargi, u, v);
524 if (jit_arg_reg_p(v->u.w))
525 jit_movi(_R2 - v->u.w, u);
527 regno = jit_get_reg(jit_class_gpr);
529 jit_stxi(v->u.w, JIT_FP, regno);
530 jit_unget_reg(regno);
536 _jit_getarg_f(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
538 assert(v->code == jit_code_arg_f);
539 jit_inc_synth_wp(getarg_f, u, v);
540 if (jit_arg_f_reg_p(v->u.w))
541 jit_movr_f(u, _F0 - v->u.w);
543 jit_ldxi_f(u, JIT_FP,
546 + (__WORDSIZE >> 3) - sizeof(jit_float32_t)
553 _jit_putargr_f(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
555 assert(v->code == jit_code_arg_f);
556 jit_inc_synth_wp(putargr_f, u, v);
557 if (jit_arg_f_reg_p(v->u.w))
558 jit_movr_f(_F0 - v->u.w, u);
562 + (__WORDSIZE >> 3) - sizeof(jit_float32_t)
569 _jit_putargi_f(jit_state_t *_jit, jit_float32_t u, jit_node_t *v)
572 assert(v->code == jit_code_arg_f);
573 jit_inc_synth_fp(putargi_f, u, v);
574 if (jit_arg_f_reg_p(v->u.w))
575 jit_movi_f(_F0 - v->u.w, u);
577 regno = jit_get_reg(jit_class_fpr);
578 jit_movi_f(regno, u);
581 + (__WORDSIZE >> 3) - sizeof(jit_float32_t)
584 jit_unget_reg(regno);
590 _jit_getarg_d(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
592 assert(v->code == jit_code_arg_d);
593 jit_inc_synth_wp(getarg_d, u, v);
594 if (jit_arg_f_reg_p(v->u.w))
595 jit_movr_d(u, _F0 - v->u.w);
597 jit_ldxi_d(u, JIT_FP, v->u.w);
602 _jit_putargr_d(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
604 assert(v->code == jit_code_arg_d);
605 jit_inc_synth_wp(putargr_d, u, v);
606 if (jit_arg_f_reg_p(v->u.w))
607 jit_movr_d(_F0 - v->u.w, u);
609 jit_stxi_d(v->u.w, JIT_FP, u);
614 _jit_putargi_d(jit_state_t *_jit, jit_float64_t u, jit_node_t *v)
617 assert(v->code == jit_code_arg_d);
618 jit_inc_synth_dp(putargi_d, u, v);
619 if (jit_arg_f_reg_p(v->u.w))
620 jit_movi_d(_F0 - v->u.w, u);
622 regno = jit_get_reg(jit_class_fpr);
623 jit_movi_d(regno, u);
624 jit_stxi_d(v->u.w, JIT_FP, regno);
625 jit_unget_reg(regno);
631 _jit_pushargr(jit_state_t *_jit, jit_int32_t u)
633 assert(_jitc->function);
634 jit_inc_synth_w(pushargr, u);
636 if (jit_arg_reg_p(_jitc->function->call.argi)) {
637 jit_movr(_R2 - _jitc->function->call.argi, u);
638 ++_jitc->function->call.argi;
641 jit_stxi(_jitc->function->call.size + stack_framesize, JIT_SP, u);
642 _jitc->function->call.size += sizeof(jit_word_t);
648 _jit_pushargi(jit_state_t *_jit, jit_word_t u)
651 assert(_jitc->function);
652 jit_inc_synth_w(pushargi, u);
654 if (jit_arg_reg_p(_jitc->function->call.argi)) {
655 jit_movi(_R2 - _jitc->function->call.argi, u);
656 ++_jitc->function->call.argi;
659 regno = jit_get_reg(jit_class_gpr);
661 jit_stxi(_jitc->function->call.size + stack_framesize, JIT_SP, regno);
662 jit_unget_reg(regno);
663 _jitc->function->call.size += sizeof(jit_word_t);
669 _jit_pushargr_f(jit_state_t *_jit, jit_int32_t u)
671 assert(_jitc->function);
672 jit_inc_synth_w(pushargr_f, u);
674 if (jit_arg_f_reg_p(_jitc->function->call.argf)) {
675 jit_movr_f(_F0 - _jitc->function->call.argf, u);
676 ++_jitc->function->call.argf;
679 jit_stxi_f(_jitc->function->call.size + stack_framesize
681 + (__WORDSIZE >> 3) - sizeof(jit_float32_t)
684 _jitc->function->call.size += sizeof(jit_word_t);
690 _jit_pushargi_f(jit_state_t *_jit, jit_float32_t u)
693 assert(_jitc->function);
694 jit_inc_synth_f(pushargi_f, u);
696 if (jit_arg_f_reg_p(_jitc->function->call.argf)) {
697 jit_movi_f(_F0 - _jitc->function->call.argf, u);
698 ++_jitc->function->call.argf;
701 regno = jit_get_reg(jit_class_fpr);
702 jit_movi_f(regno, u);
703 jit_stxi_f(_jitc->function->call.size + stack_framesize
705 + (__WORDSIZE >> 3) - sizeof(jit_float32_t)
708 jit_unget_reg(regno);
709 _jitc->function->call.size += sizeof(jit_word_t);
715 _jit_pushargr_d(jit_state_t *_jit, jit_int32_t u)
717 assert(_jitc->function);
718 jit_inc_synth_w(pushargr_d, u);
720 if (jit_arg_f_reg_p(_jitc->function->call.argf)) {
721 jit_movr_d(_F0 - _jitc->function->call.argf, u);
722 ++_jitc->function->call.argf;
725 jit_stxi_d(_jitc->function->call.size + stack_framesize, JIT_SP, u);
726 _jitc->function->call.size += sizeof(jit_float64_t);
732 _jit_pushargi_d(jit_state_t *_jit, jit_float64_t u)
735 assert(_jitc->function);
736 jit_inc_synth_d(pushargi_d, u);
738 if (jit_arg_f_reg_p(_jitc->function->call.argf)) {
739 jit_movi_d(_F0 - _jitc->function->call.argf, u);
740 ++_jitc->function->call.argf;
743 regno = jit_get_reg(jit_class_fpr);
744 jit_movi_d(regno, u);
745 jit_stxi_d(_jitc->function->call.size + stack_framesize, JIT_SP, regno);
746 jit_unget_reg(regno);
747 _jitc->function->call.size += sizeof(jit_float64_t);
753 _jit_regarg_p(jit_state_t *_jit, jit_node_t *node, jit_int32_t regno)
756 spec = jit_class(_rvs[regno].spec);
757 if (spec & jit_class_arg) {
759 if (regno >= 0 && regno < node->v.w)
761 if (spec & jit_class_fpr) {
763 if (regno >= 0 && regno < node->w.w)
771 _jit_finishr(jit_state_t *_jit, jit_int32_t r0)
774 assert(_jitc->function);
775 jit_inc_synth_w(finishr, r0);
776 if (_jitc->function->self.alen < _jitc->function->call.size)
777 _jitc->function->self.alen = _jitc->function->call.size;
778 call = jit_callr(r0);
779 call->v.w = _jitc->function->call.argi;
780 call->w.w = _jitc->function->call.argf;
781 _jitc->function->call.argi = _jitc->function->call.argf =
782 _jitc->function->call.size = 0;
788 _jit_finishi(jit_state_t *_jit, jit_pointer_t i0)
791 assert(_jitc->function);
792 jit_inc_synth_w(finishi, (jit_word_t)i0);
793 if (_jitc->function->self.alen < _jitc->function->call.size)
794 _jitc->function->self.alen = _jitc->function->call.size;
795 node = jit_calli(i0);
796 node->v.w = _jitc->function->call.argi;
797 node->w.w = _jitc->function->call.argf;
798 _jitc->function->call.argi = _jitc->function->call.argf =
799 _jitc->function->call.size = 0;
806 _jit_retval_c(jit_state_t *_jit, jit_int32_t r0)
808 jit_inc_synth_w(retval_c, r0);
809 jit_extr_c(r0, JIT_RET);
814 _jit_retval_uc(jit_state_t *_jit, jit_int32_t r0)
816 jit_inc_synth_w(retval_uc, r0);
817 jit_extr_uc(r0, JIT_RET);
822 _jit_retval_s(jit_state_t *_jit, jit_int32_t r0)
824 jit_inc_synth_w(retval_s, r0);
825 jit_extr_s(r0, JIT_RET);
830 _jit_retval_us(jit_state_t *_jit, jit_int32_t r0)
832 jit_inc_synth_w(retval_us, r0);
833 jit_extr_us(r0, JIT_RET);
838 _jit_retval_i(jit_state_t *_jit, jit_int32_t r0)
840 jit_inc_synth_w(retval_i, r0);
842 jit_extr_i(r0, JIT_RET);
844 jit_movr(r0, JIT_RET);
851 _jit_retval_ui(jit_state_t *_jit, jit_int32_t r0)
853 jit_inc_synth_w(retval_ui, r0);
854 jit_extr_ui(r0, JIT_RET);
859 _jit_retval_l(jit_state_t *_jit, jit_int32_t r0)
861 jit_inc_synth_w(retval_l, r0);
862 jit_movr(r0, JIT_RET);
868 _jit_retval_f(jit_state_t *_jit, jit_int32_t r0)
870 jit_inc_synth_w(retval_f, r0);
871 jit_movr_f(r0, JIT_FRET);
876 _jit_retval_d(jit_state_t *_jit, jit_int32_t r0)
878 jit_inc_synth_w(retval_d, r0);
879 jit_movr_d(r0, JIT_FRET);
884 _emit_code(jit_state_t *_jit)
894 #if DEVEL_DISASSEMBLER
897 jit_int32_t patch_offset;
899 #if DEVEL_DISASSEMBLER
903 _jitc->function = NULL;
909 undo.patch_offset = 0;
911 #define assert_data(node) /**/
912 #define case_rr(name, type) \
913 case jit_code_##name##r##type: \
914 name##r##type(rn(node->u.w), rn(node->v.w)); \
916 #define case_rw(name, type) \
917 case jit_code_##name##i##type: \
918 name##i##type(rn(node->u.w), node->v.w); \
920 #define case_wr(name, type) \
921 case jit_code_##name##i##type: \
922 name##i##type(node->u.w, rn(node->v.w)); \
924 #define case_rrr(name, type) \
925 case jit_code_##name##r##type: \
926 name##r##type(rn(node->u.w), \
927 rn(node->v.w), rn(node->w.w)); \
929 #define case_rrrr(name, type) \
930 case jit_code_##name##r##type: \
931 name##r##type(rn(node->u.q.l), rn(node->u.q.h), \
932 rn(node->v.w), rn(node->w.w)); \
934 #define case_rrw(name, type) \
935 case jit_code_##name##i##type: \
936 name##i##type(rn(node->u.w), rn(node->v.w), node->w.w); \
938 #define case_rrrw(name, type) \
939 case jit_code_##name##i##type: \
940 name##i##type(rn(node->u.q.l), rn(node->u.q.h), \
941 rn(node->v.w), node->w.w); \
943 #define case_rrf(name) \
944 case jit_code_##name##i_f: \
946 name##i_f(rn(node->u.w), rn(node->v.w), \
947 (jit_float32_t *)node->w.n->u.w); \
949 #define case_rrd(name) \
950 case jit_code_##name##i_d: \
952 name##i_d(rn(node->u.w), rn(node->v.w), \
953 (jit_float64_t *)node->w.n->u.w); \
955 #define case_wrr(name, type) \
956 case jit_code_##name##i##type: \
957 name##i##type(node->u.w, rn(node->v.w), rn(node->w.w)); \
959 #define case_brr(name, type) \
960 case jit_code_##name##r##type: \
962 assert(temp->code == jit_code_label || \
963 temp->code == jit_code_epilog); \
964 if (temp->flag & jit_flag_patch) \
965 name##r##type(temp->u.w, rn(node->v.w), \
968 word = name##r##type##_p(_jit->pc.w, \
974 #define case_brw(name, type) \
975 case jit_code_##name##i##type: \
977 assert(temp->code == jit_code_label || \
978 temp->code == jit_code_epilog); \
979 if (temp->flag & jit_flag_patch) \
980 name##i##type(temp->u.w, \
981 rn(node->v.w), node->w.w); \
983 word = name##i##type##_p(_jit->pc.w, \
984 rn(node->v.w), node->w.w); \
988 #define case_brf(name) \
989 case jit_code_##name##i_f: \
991 assert(temp->code == jit_code_label || \
992 temp->code == jit_code_epilog); \
993 if (temp->flag & jit_flag_patch) \
994 name##i_f(temp->u.w, rn(node->v.w), \
995 (jit_float32_t *)node->w.n->u.w); \
997 word = name##i_f_p(_jit->pc.w, rn(node->v.w), \
998 (jit_float32_t *)node->w.n->u.w);\
1002 #define case_brd(name) \
1003 case jit_code_##name##i_d: \
1005 assert(temp->code == jit_code_label || \
1006 temp->code == jit_code_epilog); \
1007 if (temp->flag & jit_flag_patch) \
1008 name##i_d(temp->u.w, rn(node->v.w), \
1009 (jit_float64_t *)node->w.n->u.w); \
1011 word = name##i_d_p(_jit->pc.w, rn(node->v.w), \
1012 (jit_float64_t *)node->w.n->u.w);\
1013 patch(word, node); \
1016 #if DEVEL_DISASSEMBLER
1019 for (node = _jitc->head; node; node = node->next) {
1020 if (_jit->pc.uc >= _jitc->code.end)
1023 #if DEVEL_DISASSEMBLER
1024 node->offset = (jit_uword_t)_jit->pc.w - (jit_uword_t)prevw;
1027 value = jit_classify(node->code);
1028 jit_regarg_set(node, value);
1029 switch (node->code) {
1030 case jit_code_align:
1031 assert(!(node->u.w & (node->u.w - 1)) &&
1032 node->u.w <= sizeof(jit_word_t));
1033 if (node->u.w == sizeof(jit_word_t) &&
1034 (word = _jit->pc.w & (sizeof(jit_word_t) - 1)))
1035 nop(sizeof(jit_word_t) - word);
1037 case jit_code_note: case jit_code_name:
1038 node->u.w = _jit->pc.w;
1040 case jit_code_label:
1041 if ((node->link || (node->flag & jit_flag_use)) &&
1042 (word = _jit->pc.w & 3))
1044 /* remember label is defined */
1045 node->flag |= jit_flag_patch;
1046 node->u.w = _jit->pc.w;
1065 case_rrrr(qmul, _u);
1066 case_rrrw(qmul, _u);
1077 case_rrrr(qdiv, _u);
1078 case_rrrw(qdiv, _u);
1093 case_rr(trunc, _f_i);
1094 case_rr(trunc, _d_i);
1095 #if __WORDSIZE == 64
1096 case_rr(trunc, _f_l);
1097 case_rr(trunc, _d_l);
1109 #if __WORDSIZE == 64
1125 #if __WORDSIZE == 64
1137 #if __WORDSIZE == 64
1147 #if __WORDSIZE == 64
1153 #if __WORDSIZE == 64
1156 case_rr(bswap, _us);
1157 case_rr(bswap, _ui);
1158 #if __WORDSIZE == 64
1159 case_rr(bswap, _ul);
1165 #if __WORDSIZE == 64
1170 casr(rn(node->u.w), rn(node->v.w),
1171 rn(node->w.q.l), rn(node->w.q.h));
1174 casi(rn(node->u.w), node->v.w,
1175 rn(node->w.q.l), rn(node->w.q.h));
1181 if (node->flag & jit_flag_node) {
1183 if (temp->code == jit_code_data ||
1184 (temp->code == jit_code_label &&
1185 (temp->flag & jit_flag_patch)))
1186 movi(rn(node->u.w), temp->u.w);
1188 assert(temp->code == jit_code_label ||
1189 temp->code == jit_code_epilog);
1190 word = movi_p(rn(node->u.w), temp->u.w);
1195 movi(rn(node->u.w), node->v.w);
1239 case_brr(boadd, _u);
1240 case_brw(boadd, _u);
1243 case_brr(bxadd, _u);
1244 case_brw(bxadd, _u);
1247 case_brr(bosub, _u);
1248 case_brw(bosub, _u);
1251 case_brr(bxsub, _u);
1252 case_brw(bxsub, _u);
1279 case jit_code_movi_f:
1281 movi_f(rn(node->u.w), (jit_float32_t *)node->v.n->u.w);
1310 case_rrr(unord, _f);
1324 case_brr(bunlt, _f);
1326 case_brr(bunle, _f);
1328 case_brr(buneq, _f);
1330 case_brr(bunge, _f);
1332 case_brr(bungt, _f);
1334 case_brr(bltgt, _f);
1338 case_brr(bunord, _f);
1362 case jit_code_movi_d:
1364 movi_d(rn(node->u.w), (jit_float64_t *)node->v.n->u.w);
1393 case_rrr(unord, _d);
1407 case_brr(bunlt, _d);
1409 case_brr(bunle, _d);
1411 case_brr(buneq, _d);
1413 case_brr(bunge, _d);
1415 case_brr(bungt, _d);
1417 case_brr(bltgt, _d);
1421 case_brr(bunord, _d);
1424 jmpr(rn(node->u.w));
1427 if (node->flag & jit_flag_node) {
1429 assert(temp->code == jit_code_label ||
1430 temp->code == jit_code_epilog);
1431 if (temp->flag & jit_flag_patch)
1434 word = jmpi_p(_jit->pc.w);
1441 case jit_code_callr:
1442 callr(rn(node->u.w));
1444 case jit_code_calli:
1445 if (node->flag & jit_flag_node) {
1447 assert(temp->code == jit_code_label ||
1448 temp->code == jit_code_epilog);
1449 if (temp->flag & jit_flag_patch)
1452 word = calli_p(_jit->pc.w);
1459 case jit_code_prolog:
1460 _jitc->function = _jitc->functions.ptr + node->w.w;
1462 undo.word = _jit->pc.w;
1463 #if DEVEL_DISASSEMBLER
1466 undo.patch_offset = _jitc->patches.offset;
1471 case jit_code_epilog:
1472 assert(_jitc->function == _jitc->functions.ptr + node->w.w);
1474 for (temp = undo.node->next;
1475 temp != node; temp = temp->next) {
1476 if (temp->code == jit_code_label ||
1477 temp->code == jit_code_epilog)
1478 temp->flag &= ~jit_flag_patch;
1480 temp->flag &= ~jit_flag_patch;
1482 _jit->pc.w = undo.word;
1483 #if DEVEL_DISASSEMBLER
1486 _jitc->patches.offset = undo.patch_offset;
1487 goto restart_function;
1489 if (node->link && (word = _jit->pc.w & 3))
1491 /* remember label is defined */
1492 node->flag |= jit_flag_patch;
1493 node->u.w = _jit->pc.w;
1495 _jitc->function = NULL;
1497 case jit_code_va_start:
1498 vastart(rn(node->u.w));
1500 case jit_code_va_arg:
1501 vaarg(rn(node->u.w), rn(node->v.w));
1503 case jit_code_va_arg_d:
1504 vaarg_d(rn(node->u.w), rn(node->v.w));
1506 case jit_code_live: case jit_code_ellipsis:
1507 case jit_code_va_push:
1508 case jit_code_allocai: case jit_code_allocar:
1510 case jit_code_arg_f: case jit_code_arg_d:
1511 case jit_code_va_end:
1513 case jit_code_retr: case jit_code_reti:
1514 case jit_code_retr_f: case jit_code_reti_f:
1515 case jit_code_retr_d: case jit_code_reti_d:
1516 case jit_code_getarg_c: case jit_code_getarg_uc:
1517 case jit_code_getarg_s: case jit_code_getarg_us:
1518 case jit_code_getarg_i:
1519 #if __WORDSIZE == 64
1520 case jit_code_getarg_ui: case jit_code_getarg_l:
1522 case jit_code_getarg_f: case jit_code_getarg_d:
1523 case jit_code_putargr: case jit_code_putargi:
1524 case jit_code_putargr_f: case jit_code_putargi_f:
1525 case jit_code_putargr_d: case jit_code_putargi_d:
1526 case jit_code_pushargr: case jit_code_pushargi:
1527 case jit_code_pushargr_f: case jit_code_pushargi_f:
1528 case jit_code_pushargr_d: case jit_code_pushargi_d:
1529 case jit_code_retval_c: case jit_code_retval_uc:
1530 case jit_code_retval_s: case jit_code_retval_us:
1531 case jit_code_retval_i:
1532 #if __WORDSIZE == 64
1533 case jit_code_retval_ui: case jit_code_retval_l:
1535 case jit_code_retval_f: case jit_code_retval_d:
1536 case jit_code_prepare:
1537 case jit_code_finishr: case jit_code_finishi:
1542 jit_regarg_clr(node, value);
1543 assert(_jitc->regarg == 0 && _jitc->synth == 0);
1544 /* update register live state */
1556 for (offset = 0; offset < _jitc->patches.offset; offset++) {
1557 node = _jitc->patches.ptr[offset].node;
1558 word = node->code == jit_code_movi ? node->v.n->u.w : node->u.n->u.w;
1559 patch_at(_jitc->patches.ptr[offset].inst, word);
1562 jit_flush(_jit->code.ptr, _jit->pc.uc);
1564 return (_jit->code.ptr);
1568 # include "jit_s390-cpu.c"
1569 # include "jit_s390-fpu.c"
1570 # include "jit_fallback.c"
1574 jit_flush(void *fptr, void *tptr)
1576 #if defined(__GNUC__)
1579 s = sysconf(_SC_PAGE_SIZE);
1580 f = (jit_word_t)fptr & -s;
1581 t = (((jit_word_t)tptr) + s - 1) & -s;
1582 __clear_cache((void *)f, (void *)t);
1587 _emit_ldxi(jit_state_t *_jit, jit_gpr_t r0, jit_gpr_t r1, jit_word_t i0)
1589 ldxi(rn(r0), rn(r1), i0);
1593 _emit_stxi(jit_state_t *_jit, jit_word_t i0, jit_gpr_t r0, jit_gpr_t r1)
1595 stxi(i0, rn(r0), rn(r1));
1599 _emit_ldxi_d(jit_state_t *_jit, jit_fpr_t r0, jit_gpr_t r1, jit_word_t i0)
1601 ldxi_d(rn(r0), rn(r1), i0);
1605 _emit_stxi_d(jit_state_t *_jit, jit_word_t i0, jit_gpr_t r0, jit_fpr_t r1)
1607 stxi_d(i0, rn(r0), rn(r1));
1611 _jit_get_reg_pair(jit_state_t *_jit)
1614 /* Try to find a register pair for use with operations that
1615 * require a odd based register pair. Search for the best
1616 * match to avoid spills or at least a valid operation.
1619 /* Try non callee save first */
1620 if (jit_reg_free_p(_R0) && jit_reg_free_p(_R1))
1622 else if (jit_reg_free_p(_R2) && jit_reg_free_p(_R3))
1624 else if (jit_reg_free_p(_R4) && jit_reg_free_p(_R5))
1626 /* Try callee save registers */
1627 else if (jit_reg_free_p(_R10) && jit_reg_free_p(_R11))
1628 r1 = _R10, r2 = _R11;
1629 else if (jit_reg_free_p(_R8) && jit_reg_free_p(_R9))
1631 else if (jit_reg_free_p(_R6) && jit_reg_free_p(_R7))
1634 /* We *must* find a register pair */
1635 else if (jit_reg_free_if_spill_p(_R0) && jit_reg_free_if_spill_p(_R1))
1637 else if (jit_reg_free_if_spill_p(_R2) && jit_reg_free_if_spill_p(_R3))
1639 else if (jit_reg_free_if_spill_p(_R4) && jit_reg_free_if_spill_p(_R5))
1641 else if (jit_reg_free_if_spill_p(_R10) && jit_reg_free_if_spill_p(_R11))
1642 r1 = _R10, r2 = _R11;
1643 else if (jit_reg_free_if_spill_p(_R8) && jit_reg_free_if_spill_p(_R9))
1645 else if (jit_reg_free_if_spill_p(_R6) && jit_reg_free_if_spill_p(_R7))
1648 /* Do not jit_get_reg() all registers to avoid it */
1651 (void)jit_get_reg(jit_class_gpr|jit_class_named|r1);
1652 (void)jit_get_reg(jit_class_gpr|jit_class_named|r2);
1658 _jit_unget_reg_pair(jit_state_t *_jit, jit_int32_t reg)
1663 case _R0: r2 = _R1; break;
1664 case _R2: r2 = _R3; break;
1665 case _R4: r2 = _R5; break;
1666 case _R6: r2 = _R7; break;
1667 case _R8: r2 = _R9; break;
1668 case _R10: r2 = _R11; break;
1676 _jit_get_reg_but_zero(jit_state_t *_jit, jit_int32_t flags)
1679 reg = jit_get_reg(jit_class_gpr);
1681 reg = jit_get_reg(jit_class_gpr|flags);
1688 _patch(jit_state_t *_jit, jit_word_t instr, jit_node_t *node)
1692 assert(node->flag & jit_flag_node);
1693 if (node->code == jit_code_movi)
1694 flag = node->v.n->flag;
1696 flag = node->u.n->flag;
1697 assert(!(flag & jit_flag_patch));
1698 if (_jitc->patches.offset >= _jitc->patches.length) {
1699 jit_realloc((jit_pointer_t *)&_jitc->patches.ptr,
1700 _jitc->patches.length * sizeof(jit_patch_t),
1701 (_jitc->patches.length + 1024) * sizeof(jit_patch_t));
1702 _jitc->patches.length += 1024;
1704 _jitc->patches.ptr[_jitc->patches.offset].inst = instr;
1705 _jitc->patches.ptr[_jitc->patches.offset].node = node;
1706 ++_jitc->patches.offset;