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[qemu.git] / tcg / ppc / tcg-target.c
1 /*
2 * Tiny Code Generator for QEMU
3 *
4 * Copyright (c) 2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 static uint8_t *tb_ret_addr;
26
27 #ifdef _CALL_DARWIN
28 #define LINKAGE_AREA_SIZE 24
29 #define LR_OFFSET 8
30 #elif defined _CALL_AIX
31 #define LINKAGE_AREA_SIZE 52
32 #define LR_OFFSET 8
33 #else
34 #define LINKAGE_AREA_SIZE 8
35 #define LR_OFFSET 4
36 #endif
37
38 #define FAST_PATH
39
40 #ifndef GUEST_BASE
41 #define GUEST_BASE 0
42 #endif
43
44 #ifdef CONFIG_USE_GUEST_BASE
45 #define TCG_GUEST_BASE_REG 30
46 #else
47 #define TCG_GUEST_BASE_REG 0
48 #endif
49
50 #ifndef NDEBUG
51 static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
52 "r0",
53 "r1",
54 "r2",
55 "r3",
56 "r4",
57 "r5",
58 "r6",
59 "r7",
60 "r8",
61 "r9",
62 "r10",
63 "r11",
64 "r12",
65 "r13",
66 "r14",
67 "r15",
68 "r16",
69 "r17",
70 "r18",
71 "r19",
72 "r20",
73 "r21",
74 "r22",
75 "r23",
76 "r24",
77 "r25",
78 "r26",
79 "r27",
80 "r28",
81 "r29",
82 "r30",
83 "r31"
84 };
85 #endif
86
87 static const int tcg_target_reg_alloc_order[] = {
88 TCG_REG_R14,
89 TCG_REG_R15,
90 TCG_REG_R16,
91 TCG_REG_R17,
92 TCG_REG_R18,
93 TCG_REG_R19,
94 TCG_REG_R20,
95 TCG_REG_R21,
96 TCG_REG_R22,
97 TCG_REG_R23,
98 TCG_REG_R28,
99 TCG_REG_R29,
100 TCG_REG_R30,
101 TCG_REG_R31,
102 #ifdef _CALL_DARWIN
103 TCG_REG_R2,
104 #endif
105 TCG_REG_R3,
106 TCG_REG_R4,
107 TCG_REG_R5,
108 TCG_REG_R6,
109 TCG_REG_R7,
110 TCG_REG_R8,
111 TCG_REG_R9,
112 TCG_REG_R10,
113 #ifndef _CALL_DARWIN
114 TCG_REG_R11,
115 #endif
116 TCG_REG_R12,
117 #ifndef _CALL_SYSV
118 TCG_REG_R13,
119 #endif
120 TCG_REG_R24,
121 TCG_REG_R25,
122 TCG_REG_R26,
123 TCG_REG_R27
124 };
125
126 static const int tcg_target_call_iarg_regs[] = {
127 TCG_REG_R3,
128 TCG_REG_R4,
129 TCG_REG_R5,
130 TCG_REG_R6,
131 TCG_REG_R7,
132 TCG_REG_R8,
133 TCG_REG_R9,
134 TCG_REG_R10
135 };
136
137 static const int tcg_target_call_oarg_regs[2] = {
138 TCG_REG_R3,
139 TCG_REG_R4
140 };
141
142 static const int tcg_target_callee_save_regs[] = {
143 #ifdef _CALL_DARWIN
144 TCG_REG_R11,
145 TCG_REG_R13,
146 #endif
147 #ifdef _CALL_AIX
148 TCG_REG_R13,
149 #endif
150 TCG_REG_R14,
151 TCG_REG_R15,
152 TCG_REG_R16,
153 TCG_REG_R17,
154 TCG_REG_R18,
155 TCG_REG_R19,
156 TCG_REG_R20,
157 TCG_REG_R21,
158 TCG_REG_R22,
159 TCG_REG_R23,
160 TCG_REG_R24,
161 TCG_REG_R25,
162 TCG_REG_R26,
163 TCG_REG_R27, /* currently used for the global env */
164 TCG_REG_R28,
165 TCG_REG_R29,
166 TCG_REG_R30,
167 TCG_REG_R31
168 };
169
170 static uint32_t reloc_pc24_val (void *pc, tcg_target_long target)
171 {
172 tcg_target_long disp;
173
174 disp = target - (tcg_target_long) pc;
175 if ((disp << 6) >> 6 != disp)
176 tcg_abort ();
177
178 return disp & 0x3fffffc;
179 }
180
181 static void reloc_pc24 (void *pc, tcg_target_long target)
182 {
183 *(uint32_t *) pc = (*(uint32_t *) pc & ~0x3fffffc)
184 | reloc_pc24_val (pc, target);
185 }
186
187 static uint16_t reloc_pc14_val (void *pc, tcg_target_long target)
188 {
189 tcg_target_long disp;
190
191 disp = target - (tcg_target_long) pc;
192 if (disp != (int16_t) disp)
193 tcg_abort ();
194
195 return disp & 0xfffc;
196 }
197
198 static void reloc_pc14 (void *pc, tcg_target_long target)
199 {
200 *(uint32_t *) pc = (*(uint32_t *) pc & ~0xfffc)
201 | reloc_pc14_val (pc, target);
202 }
203
204 static void patch_reloc(uint8_t *code_ptr, int type,
205 tcg_target_long value, tcg_target_long addend)
206 {
207 value += addend;
208 switch (type) {
209 case R_PPC_REL14:
210 reloc_pc14 (code_ptr, value);
211 break;
212 case R_PPC_REL24:
213 reloc_pc24 (code_ptr, value);
214 break;
215 default:
216 tcg_abort();
217 }
218 }
219
220 /* maximum number of register used for input function arguments */
221 static int tcg_target_get_call_iarg_regs_count(int flags)
222 {
223 return ARRAY_SIZE (tcg_target_call_iarg_regs);
224 }
225
226 /* parse target specific constraints */
227 static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
228 {
229 const char *ct_str;
230
231 ct_str = *pct_str;
232 switch (ct_str[0]) {
233 case 'A': case 'B': case 'C': case 'D':
234 ct->ct |= TCG_CT_REG;
235 tcg_regset_set_reg(ct->u.regs, 3 + ct_str[0] - 'A');
236 break;
237 case 'r':
238 ct->ct |= TCG_CT_REG;
239 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
240 break;
241 #ifdef CONFIG_SOFTMMU
242 case 'L': /* qemu_ld constraint */
243 ct->ct |= TCG_CT_REG;
244 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
245 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
246 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
247 break;
248 case 'K': /* qemu_st[8..32] constraint */
249 ct->ct |= TCG_CT_REG;
250 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
251 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
252 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
253 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5);
254 #if TARGET_LONG_BITS == 64
255 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R6);
256 #endif
257 break;
258 case 'M': /* qemu_st64 constraint */
259 ct->ct |= TCG_CT_REG;
260 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
261 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
262 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
263 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5);
264 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R6);
265 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R7);
266 break;
267 #else
268 case 'L':
269 case 'K':
270 ct->ct |= TCG_CT_REG;
271 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
272 break;
273 case 'M':
274 ct->ct |= TCG_CT_REG;
275 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
276 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
277 break;
278 #endif
279 default:
280 return -1;
281 }
282 ct_str++;
283 *pct_str = ct_str;
284 return 0;
285 }
286
287 /* test if a constant matches the constraint */
288 static int tcg_target_const_match(tcg_target_long val,
289 const TCGArgConstraint *arg_ct)
290 {
291 int ct;
292
293 ct = arg_ct->ct;
294 if (ct & TCG_CT_CONST)
295 return 1;
296 return 0;
297 }
298
299 #define OPCD(opc) ((opc)<<26)
300 #define XO31(opc) (OPCD(31)|((opc)<<1))
301 #define XO19(opc) (OPCD(19)|((opc)<<1))
302
303 #define B OPCD(18)
304 #define BC OPCD(16)
305 #define LBZ OPCD(34)
306 #define LHZ OPCD(40)
307 #define LHA OPCD(42)
308 #define LWZ OPCD(32)
309 #define STB OPCD(38)
310 #define STH OPCD(44)
311 #define STW OPCD(36)
312
313 #define ADDIC OPCD(12)
314 #define ADDI OPCD(14)
315 #define ADDIS OPCD(15)
316 #define ORI OPCD(24)
317 #define ORIS OPCD(25)
318 #define XORI OPCD(26)
319 #define XORIS OPCD(27)
320 #define ANDI OPCD(28)
321 #define ANDIS OPCD(29)
322 #define MULLI OPCD( 7)
323 #define CMPLI OPCD(10)
324 #define CMPI OPCD(11)
325 #define SUBFIC OPCD( 8)
326
327 #define LWZU OPCD(33)
328 #define STWU OPCD(37)
329
330 #define RLWIMI OPCD(20)
331 #define RLWINM OPCD(21)
332 #define RLWNM OPCD(23)
333
334 #define BCLR XO19( 16)
335 #define BCCTR XO19(528)
336 #define CRAND XO19(257)
337 #define CRANDC XO19(129)
338 #define CRNAND XO19(225)
339 #define CROR XO19(449)
340 #define CRNOR XO19( 33)
341
342 #define EXTSB XO31(954)
343 #define EXTSH XO31(922)
344 #define ADD XO31(266)
345 #define ADDE XO31(138)
346 #define ADDC XO31( 10)
347 #define AND XO31( 28)
348 #define SUBF XO31( 40)
349 #define SUBFC XO31( 8)
350 #define SUBFE XO31(136)
351 #define OR XO31(444)
352 #define XOR XO31(316)
353 #define MULLW XO31(235)
354 #define MULHWU XO31( 11)
355 #define DIVW XO31(491)
356 #define DIVWU XO31(459)
357 #define CMP XO31( 0)
358 #define CMPL XO31( 32)
359 #define LHBRX XO31(790)
360 #define LWBRX XO31(534)
361 #define STHBRX XO31(918)
362 #define STWBRX XO31(662)
363 #define MFSPR XO31(339)
364 #define MTSPR XO31(467)
365 #define SRAWI XO31(824)
366 #define NEG XO31(104)
367 #define MFCR XO31( 19)
368 #define CNTLZW XO31( 26)
369 #define NOR XO31(124)
370 #define ANDC XO31( 60)
371 #define ORC XO31(412)
372 #define EQV XO31(284)
373 #define NAND XO31(476)
374
375 #define LBZX XO31( 87)
376 #define LHZX XO31(279)
377 #define LHAX XO31(343)
378 #define LWZX XO31( 23)
379 #define STBX XO31(215)
380 #define STHX XO31(407)
381 #define STWX XO31(151)
382
383 #define SPR(a,b) ((((a)<<5)|(b))<<11)
384 #define LR SPR(8, 0)
385 #define CTR SPR(9, 0)
386
387 #define SLW XO31( 24)
388 #define SRW XO31(536)
389 #define SRAW XO31(792)
390
391 #define TW XO31(4)
392 #define TRAP (TW | TO (31))
393
394 #define RT(r) ((r)<<21)
395 #define RS(r) ((r)<<21)
396 #define RA(r) ((r)<<16)
397 #define RB(r) ((r)<<11)
398 #define TO(t) ((t)<<21)
399 #define SH(s) ((s)<<11)
400 #define MB(b) ((b)<<6)
401 #define ME(e) ((e)<<1)
402 #define BO(o) ((o)<<21)
403
404 #define LK 1
405
406 #define TAB(t,a,b) (RT(t) | RA(a) | RB(b))
407 #define SAB(s,a,b) (RS(s) | RA(a) | RB(b))
408
409 #define BF(n) ((n)<<23)
410 #define BI(n, c) (((c)+((n)*4))<<16)
411 #define BT(n, c) (((c)+((n)*4))<<21)
412 #define BA(n, c) (((c)+((n)*4))<<16)
413 #define BB(n, c) (((c)+((n)*4))<<11)
414
415 #define BO_COND_TRUE BO (12)
416 #define BO_COND_FALSE BO (4)
417 #define BO_ALWAYS BO (20)
418
419 enum {
420 CR_LT,
421 CR_GT,
422 CR_EQ,
423 CR_SO
424 };
425
426 static const uint32_t tcg_to_bc[10] = {
427 [TCG_COND_EQ] = BC | BI (7, CR_EQ) | BO_COND_TRUE,
428 [TCG_COND_NE] = BC | BI (7, CR_EQ) | BO_COND_FALSE,
429 [TCG_COND_LT] = BC | BI (7, CR_LT) | BO_COND_TRUE,
430 [TCG_COND_GE] = BC | BI (7, CR_LT) | BO_COND_FALSE,
431 [TCG_COND_LE] = BC | BI (7, CR_GT) | BO_COND_FALSE,
432 [TCG_COND_GT] = BC | BI (7, CR_GT) | BO_COND_TRUE,
433 [TCG_COND_LTU] = BC | BI (7, CR_LT) | BO_COND_TRUE,
434 [TCG_COND_GEU] = BC | BI (7, CR_LT) | BO_COND_FALSE,
435 [TCG_COND_LEU] = BC | BI (7, CR_GT) | BO_COND_FALSE,
436 [TCG_COND_GTU] = BC | BI (7, CR_GT) | BO_COND_TRUE,
437 };
438
439 static void tcg_out_mov(TCGContext *s, TCGType type, int ret, int arg)
440 {
441 tcg_out32 (s, OR | SAB (arg, ret, arg));
442 }
443
444 static void tcg_out_movi(TCGContext *s, TCGType type,
445 int ret, tcg_target_long arg)
446 {
447 if (arg == (int16_t) arg)
448 tcg_out32 (s, ADDI | RT (ret) | RA (0) | (arg & 0xffff));
449 else {
450 tcg_out32 (s, ADDIS | RT (ret) | RA (0) | ((arg >> 16) & 0xffff));
451 if (arg & 0xffff)
452 tcg_out32 (s, ORI | RS (ret) | RA (ret) | (arg & 0xffff));
453 }
454 }
455
456 static void tcg_out_ldst (TCGContext *s, int ret, int addr,
457 int offset, int op1, int op2)
458 {
459 if (offset == (int16_t) offset)
460 tcg_out32 (s, op1 | RT (ret) | RA (addr) | (offset & 0xffff));
461 else {
462 tcg_out_movi (s, TCG_TYPE_I32, 0, offset);
463 tcg_out32 (s, op2 | RT (ret) | RA (addr) | RB (0));
464 }
465 }
466
467 static void tcg_out_b (TCGContext *s, int mask, tcg_target_long target)
468 {
469 tcg_target_long disp;
470
471 disp = target - (tcg_target_long) s->code_ptr;
472 if ((disp << 6) >> 6 == disp)
473 tcg_out32 (s, B | (disp & 0x3fffffc) | mask);
474 else {
475 tcg_out_movi (s, TCG_TYPE_I32, 0, (tcg_target_long) target);
476 tcg_out32 (s, MTSPR | RS (0) | CTR);
477 tcg_out32 (s, BCCTR | BO_ALWAYS | mask);
478 }
479 }
480
481 static void tcg_out_call (TCGContext *s, tcg_target_long arg, int const_arg)
482 {
483 #ifdef _CALL_AIX
484 int reg;
485
486 if (const_arg) {
487 reg = 2;
488 tcg_out_movi (s, TCG_TYPE_I32, reg, arg);
489 }
490 else reg = arg;
491
492 tcg_out32 (s, LWZ | RT (0) | RA (reg));
493 tcg_out32 (s, MTSPR | RA (0) | CTR);
494 tcg_out32 (s, LWZ | RT (2) | RA (reg) | 4);
495 tcg_out32 (s, BCCTR | BO_ALWAYS | LK);
496 #else
497 if (const_arg) {
498 tcg_out_b (s, LK, arg);
499 }
500 else {
501 tcg_out32 (s, MTSPR | RS (arg) | LR);
502 tcg_out32 (s, BCLR | BO_ALWAYS | LK);
503 }
504 #endif
505 }
506
507 #if defined(CONFIG_SOFTMMU)
508
509 #include "../../softmmu_defs.h"
510
511 static void *qemu_ld_helpers[4] = {
512 __ldb_mmu,
513 __ldw_mmu,
514 __ldl_mmu,
515 __ldq_mmu,
516 };
517
518 static void *qemu_st_helpers[4] = {
519 __stb_mmu,
520 __stw_mmu,
521 __stl_mmu,
522 __stq_mmu,
523 };
524 #endif
525
526 static void tcg_out_qemu_ld (TCGContext *s, const TCGArg *args, int opc)
527 {
528 int addr_reg, data_reg, data_reg2, r0, r1, rbase, mem_index, s_bits, bswap;
529 #ifdef CONFIG_SOFTMMU
530 int r2;
531 void *label1_ptr, *label2_ptr;
532 #endif
533 #if TARGET_LONG_BITS == 64
534 int addr_reg2;
535 #endif
536
537 data_reg = *args++;
538 if (opc == 3)
539 data_reg2 = *args++;
540 else
541 data_reg2 = 0;
542 addr_reg = *args++;
543 #if TARGET_LONG_BITS == 64
544 addr_reg2 = *args++;
545 #endif
546 mem_index = *args;
547 s_bits = opc & 3;
548
549 #ifdef CONFIG_SOFTMMU
550 r0 = 3;
551 r1 = 4;
552 r2 = 0;
553 rbase = 0;
554
555 tcg_out32 (s, (RLWINM
556 | RA (r0)
557 | RS (addr_reg)
558 | SH (32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS))
559 | MB (32 - (CPU_TLB_BITS + CPU_TLB_ENTRY_BITS))
560 | ME (31 - CPU_TLB_ENTRY_BITS)
561 )
562 );
563 tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (TCG_AREG0));
564 tcg_out32 (s, (LWZU
565 | RT (r1)
566 | RA (r0)
567 | offsetof (CPUState, tlb_table[mem_index][0].addr_read)
568 )
569 );
570 tcg_out32 (s, (RLWINM
571 | RA (r2)
572 | RS (addr_reg)
573 | SH (0)
574 | MB ((32 - s_bits) & 31)
575 | ME (31 - TARGET_PAGE_BITS)
576 )
577 );
578
579 tcg_out32 (s, CMP | BF (7) | RA (r2) | RB (r1));
580 #if TARGET_LONG_BITS == 64
581 tcg_out32 (s, LWZ | RT (r1) | RA (r0) | 4);
582 tcg_out32 (s, CMP | BF (6) | RA (addr_reg2) | RB (r1));
583 tcg_out32 (s, CRAND | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, CR_EQ));
584 #endif
585
586 label1_ptr = s->code_ptr;
587 #ifdef FAST_PATH
588 tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE);
589 #endif
590
591 /* slow path */
592 #if TARGET_LONG_BITS == 32
593 tcg_out_mov (s, TCG_TYPE_I32, 3, addr_reg);
594 tcg_out_movi (s, TCG_TYPE_I32, 4, mem_index);
595 #else
596 tcg_out_mov (s, TCG_TYPE_I32, 3, addr_reg2);
597 tcg_out_mov (s, TCG_TYPE_I32, 4, addr_reg);
598 tcg_out_movi (s, TCG_TYPE_I32, 5, mem_index);
599 #endif
600
601 tcg_out_call (s, (tcg_target_long) qemu_ld_helpers[s_bits], 1);
602 switch (opc) {
603 case 0|4:
604 tcg_out32 (s, EXTSB | RA (data_reg) | RS (3));
605 break;
606 case 1|4:
607 tcg_out32 (s, EXTSH | RA (data_reg) | RS (3));
608 break;
609 case 0:
610 case 1:
611 case 2:
612 if (data_reg != 3)
613 tcg_out_mov (s, TCG_TYPE_I32, data_reg, 3);
614 break;
615 case 3:
616 if (data_reg == 3) {
617 if (data_reg2 == 4) {
618 tcg_out_mov (s, TCG_TYPE_I32, 0, 4);
619 tcg_out_mov (s, TCG_TYPE_I32, 4, 3);
620 tcg_out_mov (s, TCG_TYPE_I32, 3, 0);
621 }
622 else {
623 tcg_out_mov (s, TCG_TYPE_I32, data_reg2, 3);
624 tcg_out_mov (s, TCG_TYPE_I32, 3, 4);
625 }
626 }
627 else {
628 if (data_reg != 4) tcg_out_mov (s, TCG_TYPE_I32, data_reg, 4);
629 if (data_reg2 != 3) tcg_out_mov (s, TCG_TYPE_I32, data_reg2, 3);
630 }
631 break;
632 }
633 label2_ptr = s->code_ptr;
634 tcg_out32 (s, B);
635
636 /* label1: fast path */
637 #ifdef FAST_PATH
638 reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr);
639 #endif
640
641 /* r0 now contains &env->tlb_table[mem_index][index].addr_read */
642 tcg_out32 (s, (LWZ
643 | RT (r0)
644 | RA (r0)
645 | (offsetof (CPUTLBEntry, addend)
646 - offsetof (CPUTLBEntry, addr_read))
647 ));
648 /* r0 = env->tlb_table[mem_index][index].addend */
649 tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg));
650 /* r0 = env->tlb_table[mem_index][index].addend + addr */
651
652 #else /* !CONFIG_SOFTMMU */
653 r0 = addr_reg;
654 r1 = 3;
655 rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
656 #endif
657
658 #ifdef TARGET_WORDS_BIGENDIAN
659 bswap = 0;
660 #else
661 bswap = 1;
662 #endif
663
664 switch (opc) {
665 default:
666 case 0:
667 tcg_out32 (s, LBZX | TAB (data_reg, rbase, r0));
668 break;
669 case 0|4:
670 tcg_out32 (s, LBZX | TAB (data_reg, rbase, r0));
671 tcg_out32 (s, EXTSB | RA (data_reg) | RS (data_reg));
672 break;
673 case 1:
674 if (bswap)
675 tcg_out32 (s, LHBRX | TAB (data_reg, rbase, r0));
676 else
677 tcg_out32 (s, LHZX | TAB (data_reg, rbase, r0));
678 break;
679 case 1|4:
680 if (bswap) {
681 tcg_out32 (s, LHBRX | TAB (data_reg, rbase, r0));
682 tcg_out32 (s, EXTSH | RA (data_reg) | RS (data_reg));
683 }
684 else tcg_out32 (s, LHAX | TAB (data_reg, rbase, r0));
685 break;
686 case 2:
687 if (bswap)
688 tcg_out32 (s, LWBRX | TAB (data_reg, rbase, r0));
689 else
690 tcg_out32 (s, LWZX | TAB (data_reg, rbase, r0));
691 break;
692 case 3:
693 if (bswap) {
694 tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
695 tcg_out32 (s, LWBRX | TAB (data_reg, rbase, r0));
696 tcg_out32 (s, LWBRX | TAB (data_reg2, rbase, r1));
697 }
698 else {
699 #ifdef CONFIG_USE_GUEST_BASE
700 tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
701 tcg_out32 (s, LWZX | TAB (data_reg2, rbase, r0));
702 tcg_out32 (s, LWZX | TAB (data_reg, rbase, r1));
703 #else
704 if (r0 == data_reg2) {
705 tcg_out32 (s, LWZ | RT (0) | RA (r0));
706 tcg_out32 (s, LWZ | RT (data_reg) | RA (r0) | 4);
707 tcg_out_mov (s, TCG_TYPE_I32, data_reg2, 0);
708 }
709 else {
710 tcg_out32 (s, LWZ | RT (data_reg2) | RA (r0));
711 tcg_out32 (s, LWZ | RT (data_reg) | RA (r0) | 4);
712 }
713 #endif
714 }
715 break;
716 }
717
718 #ifdef CONFIG_SOFTMMU
719 reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr);
720 #endif
721 }
722
723 static void tcg_out_qemu_st (TCGContext *s, const TCGArg *args, int opc)
724 {
725 int addr_reg, r0, r1, data_reg, data_reg2, mem_index, bswap, rbase;
726 #ifdef CONFIG_SOFTMMU
727 int r2, ir;
728 void *label1_ptr, *label2_ptr;
729 #endif
730 #if TARGET_LONG_BITS == 64
731 int addr_reg2;
732 #endif
733
734 data_reg = *args++;
735 if (opc == 3)
736 data_reg2 = *args++;
737 else
738 data_reg2 = 0;
739 addr_reg = *args++;
740 #if TARGET_LONG_BITS == 64
741 addr_reg2 = *args++;
742 #endif
743 mem_index = *args;
744
745 #ifdef CONFIG_SOFTMMU
746 r0 = 3;
747 r1 = 4;
748 r2 = 0;
749 rbase = 0;
750
751 tcg_out32 (s, (RLWINM
752 | RA (r0)
753 | RS (addr_reg)
754 | SH (32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS))
755 | MB (32 - (CPU_TLB_ENTRY_BITS + CPU_TLB_BITS))
756 | ME (31 - CPU_TLB_ENTRY_BITS)
757 )
758 );
759 tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (TCG_AREG0));
760 tcg_out32 (s, (LWZU
761 | RT (r1)
762 | RA (r0)
763 | offsetof (CPUState, tlb_table[mem_index][0].addr_write)
764 )
765 );
766 tcg_out32 (s, (RLWINM
767 | RA (r2)
768 | RS (addr_reg)
769 | SH (0)
770 | MB ((32 - opc) & 31)
771 | ME (31 - TARGET_PAGE_BITS)
772 )
773 );
774
775 tcg_out32 (s, CMP | (7 << 23) | RA (r2) | RB (r1));
776 #if TARGET_LONG_BITS == 64
777 tcg_out32 (s, LWZ | RT (r1) | RA (r0) | 4);
778 tcg_out32 (s, CMP | BF (6) | RA (addr_reg2) | RB (r1));
779 tcg_out32 (s, CRAND | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, CR_EQ));
780 #endif
781
782 label1_ptr = s->code_ptr;
783 #ifdef FAST_PATH
784 tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE);
785 #endif
786
787 /* slow path */
788 #if TARGET_LONG_BITS == 32
789 tcg_out_mov (s, TCG_TYPE_I32, 3, addr_reg);
790 ir = 4;
791 #else
792 tcg_out_mov (s, TCG_TYPE_I32, 3, addr_reg2);
793 tcg_out_mov (s, TCG_TYPE_I32, 4, addr_reg);
794 #ifdef TCG_TARGET_CALL_ALIGN_ARGS
795 ir = 5;
796 #else
797 ir = 4;
798 #endif
799 #endif
800
801 switch (opc) {
802 case 0:
803 tcg_out32 (s, (RLWINM
804 | RA (ir)
805 | RS (data_reg)
806 | SH (0)
807 | MB (24)
808 | ME (31)));
809 break;
810 case 1:
811 tcg_out32 (s, (RLWINM
812 | RA (ir)
813 | RS (data_reg)
814 | SH (0)
815 | MB (16)
816 | ME (31)));
817 break;
818 case 2:
819 tcg_out_mov (s, TCG_TYPE_I32, ir, data_reg);
820 break;
821 case 3:
822 #ifdef TCG_TARGET_CALL_ALIGN_ARGS
823 ir = 5;
824 #endif
825 tcg_out_mov (s, TCG_TYPE_I32, ir++, data_reg2);
826 tcg_out_mov (s, TCG_TYPE_I32, ir, data_reg);
827 break;
828 }
829 ir++;
830
831 tcg_out_movi (s, TCG_TYPE_I32, ir, mem_index);
832 tcg_out_call (s, (tcg_target_long) qemu_st_helpers[opc], 1);
833 label2_ptr = s->code_ptr;
834 tcg_out32 (s, B);
835
836 /* label1: fast path */
837 #ifdef FAST_PATH
838 reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr);
839 #endif
840
841 tcg_out32 (s, (LWZ
842 | RT (r0)
843 | RA (r0)
844 | (offsetof (CPUTLBEntry, addend)
845 - offsetof (CPUTLBEntry, addr_write))
846 ));
847 /* r0 = env->tlb_table[mem_index][index].addend */
848 tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg));
849 /* r0 = env->tlb_table[mem_index][index].addend + addr */
850
851 #else /* !CONFIG_SOFTMMU */
852 r0 = addr_reg;
853 r1 = 3;
854 rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
855 #endif
856
857 #ifdef TARGET_WORDS_BIGENDIAN
858 bswap = 0;
859 #else
860 bswap = 1;
861 #endif
862 switch (opc) {
863 case 0:
864 tcg_out32 (s, STBX | SAB (data_reg, rbase, r0));
865 break;
866 case 1:
867 if (bswap)
868 tcg_out32 (s, STHBRX | SAB (data_reg, rbase, r0));
869 else
870 tcg_out32 (s, STHX | SAB (data_reg, rbase, r0));
871 break;
872 case 2:
873 if (bswap)
874 tcg_out32 (s, STWBRX | SAB (data_reg, rbase, r0));
875 else
876 tcg_out32 (s, STWX | SAB (data_reg, rbase, r0));
877 break;
878 case 3:
879 if (bswap) {
880 tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
881 tcg_out32 (s, STWBRX | SAB (data_reg, rbase, r0));
882 tcg_out32 (s, STWBRX | SAB (data_reg2, rbase, r1));
883 }
884 else {
885 #ifdef CONFIG_USE_GUEST_BASE
886 tcg_out32 (s, STWX | SAB (data_reg2, rbase, r0));
887 tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
888 tcg_out32 (s, STWX | SAB (data_reg, rbase, r1));
889 #else
890 tcg_out32 (s, STW | RS (data_reg2) | RA (r0));
891 tcg_out32 (s, STW | RS (data_reg) | RA (r0) | 4);
892 #endif
893 }
894 break;
895 }
896
897 #ifdef CONFIG_SOFTMMU
898 reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr);
899 #endif
900 }
901
902 static void tcg_target_qemu_prologue (TCGContext *s)
903 {
904 int i, frame_size;
905
906 frame_size = 0
907 + LINKAGE_AREA_SIZE
908 + TCG_STATIC_CALL_ARGS_SIZE
909 + ARRAY_SIZE (tcg_target_callee_save_regs) * 4
910 ;
911 frame_size = (frame_size + 15) & ~15;
912
913 #ifdef _CALL_AIX
914 {
915 uint32_t addr;
916
917 /* First emit adhoc function descriptor */
918 addr = (uint32_t) s->code_ptr + 12;
919 tcg_out32 (s, addr); /* entry point */
920 s->code_ptr += 8; /* skip TOC and environment pointer */
921 }
922 #endif
923 tcg_out32 (s, MFSPR | RT (0) | LR);
924 tcg_out32 (s, STWU | RS (1) | RA (1) | (-frame_size & 0xffff));
925 for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i)
926 tcg_out32 (s, (STW
927 | RS (tcg_target_callee_save_regs[i])
928 | RA (1)
929 | (i * 4 + LINKAGE_AREA_SIZE + TCG_STATIC_CALL_ARGS_SIZE)
930 )
931 );
932 tcg_out32 (s, STW | RS (0) | RA (1) | (frame_size + LR_OFFSET));
933
934 #ifdef CONFIG_USE_GUEST_BASE
935 if (GUEST_BASE) {
936 tcg_out_movi (s, TCG_TYPE_I32, TCG_GUEST_BASE_REG, GUEST_BASE);
937 tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
938 }
939 #endif
940
941 tcg_out_mov (s, TCG_TYPE_PTR, TCG_AREG0, tcg_target_call_iarg_regs[0]);
942 tcg_out32 (s, MTSPR | RS (tcg_target_call_iarg_regs[1]) | CTR);
943 tcg_out32 (s, BCCTR | BO_ALWAYS);
944 tb_ret_addr = s->code_ptr;
945
946 for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i)
947 tcg_out32 (s, (LWZ
948 | RT (tcg_target_callee_save_regs[i])
949 | RA (1)
950 | (i * 4 + LINKAGE_AREA_SIZE + TCG_STATIC_CALL_ARGS_SIZE)
951 )
952 );
953 tcg_out32 (s, LWZ | RT (0) | RA (1) | (frame_size + LR_OFFSET));
954 tcg_out32 (s, MTSPR | RS (0) | LR);
955 tcg_out32 (s, ADDI | RT (1) | RA (1) | frame_size);
956 tcg_out32 (s, BCLR | BO_ALWAYS);
957 }
958
959 static void tcg_out_ld (TCGContext *s, TCGType type, int ret, int arg1,
960 tcg_target_long arg2)
961 {
962 tcg_out_ldst (s, ret, arg1, arg2, LWZ, LWZX);
963 }
964
965 static void tcg_out_st (TCGContext *s, TCGType type, int arg, int arg1,
966 tcg_target_long arg2)
967 {
968 tcg_out_ldst (s, arg, arg1, arg2, STW, STWX);
969 }
970
971 static void ppc_addi (TCGContext *s, int rt, int ra, tcg_target_long si)
972 {
973 if (!si && rt == ra)
974 return;
975
976 if (si == (int16_t) si)
977 tcg_out32 (s, ADDI | RT (rt) | RA (ra) | (si & 0xffff));
978 else {
979 uint16_t h = ((si >> 16) & 0xffff) + ((uint16_t) si >> 15);
980 tcg_out32 (s, ADDIS | RT (rt) | RA (ra) | h);
981 tcg_out32 (s, ADDI | RT (rt) | RA (rt) | (si & 0xffff));
982 }
983 }
984
985 static void tcg_out_cmp (TCGContext *s, int cond, TCGArg arg1, TCGArg arg2,
986 int const_arg2, int cr)
987 {
988 int imm;
989 uint32_t op;
990
991 switch (cond) {
992 case TCG_COND_EQ:
993 case TCG_COND_NE:
994 if (const_arg2) {
995 if ((int16_t) arg2 == arg2) {
996 op = CMPI;
997 imm = 1;
998 break;
999 }
1000 else if ((uint16_t) arg2 == arg2) {
1001 op = CMPLI;
1002 imm = 1;
1003 break;
1004 }
1005 }
1006 op = CMPL;
1007 imm = 0;
1008 break;
1009
1010 case TCG_COND_LT:
1011 case TCG_COND_GE:
1012 case TCG_COND_LE:
1013 case TCG_COND_GT:
1014 if (const_arg2) {
1015 if ((int16_t) arg2 == arg2) {
1016 op = CMPI;
1017 imm = 1;
1018 break;
1019 }
1020 }
1021 op = CMP;
1022 imm = 0;
1023 break;
1024
1025 case TCG_COND_LTU:
1026 case TCG_COND_GEU:
1027 case TCG_COND_LEU:
1028 case TCG_COND_GTU:
1029 if (const_arg2) {
1030 if ((uint16_t) arg2 == arg2) {
1031 op = CMPLI;
1032 imm = 1;
1033 break;
1034 }
1035 }
1036 op = CMPL;
1037 imm = 0;
1038 break;
1039
1040 default:
1041 tcg_abort ();
1042 }
1043 op |= BF (cr);
1044
1045 if (imm)
1046 tcg_out32 (s, op | RA (arg1) | (arg2 & 0xffff));
1047 else {
1048 if (const_arg2) {
1049 tcg_out_movi (s, TCG_TYPE_I32, 0, arg2);
1050 tcg_out32 (s, op | RA (arg1) | RB (0));
1051 }
1052 else
1053 tcg_out32 (s, op | RA (arg1) | RB (arg2));
1054 }
1055
1056 }
1057
1058 static void tcg_out_bc (TCGContext *s, int bc, int label_index)
1059 {
1060 TCGLabel *l = &s->labels[label_index];
1061
1062 if (l->has_value)
1063 tcg_out32 (s, bc | reloc_pc14_val (s->code_ptr, l->u.value));
1064 else {
1065 uint16_t val = *(uint16_t *) &s->code_ptr[2];
1066
1067 /* Thanks to Andrzej Zaborowski */
1068 tcg_out32 (s, bc | (val & 0xfffc));
1069 tcg_out_reloc (s, s->code_ptr - 4, R_PPC_REL14, label_index, 0);
1070 }
1071 }
1072
1073 static void tcg_out_cr7eq_from_cond (TCGContext *s, const TCGArg *args,
1074 const int *const_args)
1075 {
1076 TCGCond cond = args[4];
1077 int op;
1078 struct { int bit1; int bit2; int cond2; } bits[] = {
1079 [TCG_COND_LT ] = { CR_LT, CR_LT, TCG_COND_LT },
1080 [TCG_COND_LE ] = { CR_LT, CR_GT, TCG_COND_LT },
1081 [TCG_COND_GT ] = { CR_GT, CR_GT, TCG_COND_GT },
1082 [TCG_COND_GE ] = { CR_GT, CR_LT, TCG_COND_GT },
1083 [TCG_COND_LTU] = { CR_LT, CR_LT, TCG_COND_LTU },
1084 [TCG_COND_LEU] = { CR_LT, CR_GT, TCG_COND_LTU },
1085 [TCG_COND_GTU] = { CR_GT, CR_GT, TCG_COND_GTU },
1086 [TCG_COND_GEU] = { CR_GT, CR_LT, TCG_COND_GTU },
1087 }, *b = &bits[cond];
1088
1089 switch (cond) {
1090 case TCG_COND_EQ:
1091 case TCG_COND_NE:
1092 op = (cond == TCG_COND_EQ) ? CRAND : CRNAND;
1093 tcg_out_cmp (s, cond, args[0], args[2], const_args[2], 6);
1094 tcg_out_cmp (s, cond, args[1], args[3], const_args[3], 7);
1095 tcg_out32 (s, op | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, CR_EQ));
1096 break;
1097 case TCG_COND_LT:
1098 case TCG_COND_LE:
1099 case TCG_COND_GT:
1100 case TCG_COND_GE:
1101 case TCG_COND_LTU:
1102 case TCG_COND_LEU:
1103 case TCG_COND_GTU:
1104 case TCG_COND_GEU:
1105 op = (b->bit1 != b->bit2) ? CRANDC : CRAND;
1106 tcg_out_cmp (s, b->cond2, args[1], args[3], const_args[3], 5);
1107 tcg_out_cmp (s, tcg_unsigned_cond (cond), args[0], args[2],
1108 const_args[2], 7);
1109 tcg_out32 (s, op | BT (7, CR_EQ) | BA (5, CR_EQ) | BB (7, b->bit2));
1110 tcg_out32 (s, CROR | BT (7, CR_EQ) | BA (5, b->bit1) | BB (7, CR_EQ));
1111 break;
1112 default:
1113 tcg_abort();
1114 }
1115 }
1116
1117 static void tcg_out_setcond (TCGContext *s, TCGCond cond, TCGArg arg0,
1118 TCGArg arg1, TCGArg arg2, int const_arg2)
1119 {
1120 int crop, sh, arg;
1121
1122 switch (cond) {
1123 case TCG_COND_EQ:
1124 if (const_arg2) {
1125 if (!arg2) {
1126 arg = arg1;
1127 }
1128 else {
1129 arg = 0;
1130 if ((uint16_t) arg2 == arg2) {
1131 tcg_out32 (s, XORI | RS (arg1) | RA (0) | arg2);
1132 }
1133 else {
1134 tcg_out_movi (s, TCG_TYPE_I32, 0, arg2);
1135 tcg_out32 (s, XOR | SAB (arg1, 0, 0));
1136 }
1137 }
1138 }
1139 else {
1140 arg = 0;
1141 tcg_out32 (s, XOR | SAB (arg1, 0, arg2));
1142 }
1143 tcg_out32 (s, CNTLZW | RS (arg) | RA (0));
1144 tcg_out32 (s, (RLWINM
1145 | RA (arg0)
1146 | RS (0)
1147 | SH (27)
1148 | MB (5)
1149 | ME (31)
1150 )
1151 );
1152 break;
1153
1154 case TCG_COND_NE:
1155 if (const_arg2) {
1156 if (!arg2) {
1157 arg = arg1;
1158 }
1159 else {
1160 arg = 0;
1161 if ((uint16_t) arg2 == arg2) {
1162 tcg_out32 (s, XORI | RS (arg1) | RA (0) | arg2);
1163 }
1164 else {
1165 tcg_out_movi (s, TCG_TYPE_I32, 0, arg2);
1166 tcg_out32 (s, XOR | SAB (arg1, 0, 0));
1167 }
1168 }
1169 }
1170 else {
1171 arg = 0;
1172 tcg_out32 (s, XOR | SAB (arg1, 0, arg2));
1173 }
1174
1175 if (arg == arg1 && arg1 == arg0) {
1176 tcg_out32 (s, ADDIC | RT (0) | RA (arg) | 0xffff);
1177 tcg_out32 (s, SUBFE | TAB (arg0, 0, arg));
1178 }
1179 else {
1180 tcg_out32 (s, ADDIC | RT (arg0) | RA (arg) | 0xffff);
1181 tcg_out32 (s, SUBFE | TAB (arg0, arg0, arg));
1182 }
1183 break;
1184
1185 case TCG_COND_GT:
1186 case TCG_COND_GTU:
1187 sh = 30;
1188 crop = 0;
1189 goto crtest;
1190
1191 case TCG_COND_LT:
1192 case TCG_COND_LTU:
1193 sh = 29;
1194 crop = 0;
1195 goto crtest;
1196
1197 case TCG_COND_GE:
1198 case TCG_COND_GEU:
1199 sh = 31;
1200 crop = CRNOR | BT (7, CR_EQ) | BA (7, CR_LT) | BB (7, CR_LT);
1201 goto crtest;
1202
1203 case TCG_COND_LE:
1204 case TCG_COND_LEU:
1205 sh = 31;
1206 crop = CRNOR | BT (7, CR_EQ) | BA (7, CR_GT) | BB (7, CR_GT);
1207 crtest:
1208 tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7);
1209 if (crop) tcg_out32 (s, crop);
1210 tcg_out32 (s, MFCR | RT (0));
1211 tcg_out32 (s, (RLWINM
1212 | RA (arg0)
1213 | RS (0)
1214 | SH (sh)
1215 | MB (31)
1216 | ME (31)
1217 )
1218 );
1219 break;
1220
1221 default:
1222 tcg_abort ();
1223 }
1224 }
1225
1226 static void tcg_out_setcond2 (TCGContext *s, const TCGArg *args,
1227 const int *const_args)
1228 {
1229 tcg_out_cr7eq_from_cond (s, args + 1, const_args + 1);
1230 tcg_out32 (s, MFCR | RT (0));
1231 tcg_out32 (s, (RLWINM
1232 | RA (args[0])
1233 | RS (0)
1234 | SH (31)
1235 | MB (31)
1236 | ME (31)
1237 )
1238 );
1239 }
1240
1241 static void tcg_out_brcond (TCGContext *s, TCGCond cond,
1242 TCGArg arg1, TCGArg arg2, int const_arg2,
1243 int label_index)
1244 {
1245 tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7);
1246 tcg_out_bc (s, tcg_to_bc[cond], label_index);
1247 }
1248
1249 /* XXX: we implement it at the target level to avoid having to
1250 handle cross basic blocks temporaries */
1251 static void tcg_out_brcond2 (TCGContext *s, const TCGArg *args,
1252 const int *const_args)
1253 {
1254 tcg_out_cr7eq_from_cond (s, args, const_args);
1255 tcg_out_bc (s, (BC | BI (7, CR_EQ) | BO_COND_TRUE), args[5]);
1256 }
1257
1258 void ppc_tb_set_jmp_target (unsigned long jmp_addr, unsigned long addr)
1259 {
1260 uint32_t *ptr;
1261 long disp = addr - jmp_addr;
1262 unsigned long patch_size;
1263
1264 ptr = (uint32_t *)jmp_addr;
1265
1266 if ((disp << 6) >> 6 != disp) {
1267 ptr[0] = 0x3c000000 | (addr >> 16); /* lis 0,addr@ha */
1268 ptr[1] = 0x60000000 | (addr & 0xffff); /* la 0,addr@l(0) */
1269 ptr[2] = 0x7c0903a6; /* mtctr 0 */
1270 ptr[3] = 0x4e800420; /* brctr */
1271 patch_size = 16;
1272 } else {
1273 /* patch the branch destination */
1274 if (disp != 16) {
1275 *ptr = 0x48000000 | (disp & 0x03fffffc); /* b disp */
1276 patch_size = 4;
1277 } else {
1278 ptr[0] = 0x60000000; /* nop */
1279 ptr[1] = 0x60000000;
1280 ptr[2] = 0x60000000;
1281 ptr[3] = 0x60000000;
1282 patch_size = 16;
1283 }
1284 }
1285 /* flush icache */
1286 flush_icache_range(jmp_addr, jmp_addr + patch_size);
1287 }
1288
1289 static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,
1290 const int *const_args)
1291 {
1292 switch (opc) {
1293 case INDEX_op_exit_tb:
1294 tcg_out_movi (s, TCG_TYPE_I32, TCG_REG_R3, args[0]);
1295 tcg_out_b (s, 0, (tcg_target_long) tb_ret_addr);
1296 break;
1297 case INDEX_op_goto_tb:
1298 if (s->tb_jmp_offset) {
1299 /* direct jump method */
1300
1301 s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
1302 s->code_ptr += 16;
1303 }
1304 else {
1305 tcg_abort ();
1306 }
1307 s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
1308 break;
1309 case INDEX_op_br:
1310 {
1311 TCGLabel *l = &s->labels[args[0]];
1312
1313 if (l->has_value) {
1314 tcg_out_b (s, 0, l->u.value);
1315 }
1316 else {
1317 uint32_t val = *(uint32_t *) s->code_ptr;
1318
1319 /* Thanks to Andrzej Zaborowski */
1320 tcg_out32 (s, B | (val & 0x3fffffc));
1321 tcg_out_reloc (s, s->code_ptr - 4, R_PPC_REL24, args[0], 0);
1322 }
1323 }
1324 break;
1325 case INDEX_op_call:
1326 tcg_out_call (s, args[0], const_args[0]);
1327 break;
1328 case INDEX_op_jmp:
1329 if (const_args[0]) {
1330 tcg_out_b (s, 0, args[0]);
1331 }
1332 else {
1333 tcg_out32 (s, MTSPR | RS (args[0]) | CTR);
1334 tcg_out32 (s, BCCTR | BO_ALWAYS);
1335 }
1336 break;
1337 case INDEX_op_movi_i32:
1338 tcg_out_movi(s, TCG_TYPE_I32, args[0], args[1]);
1339 break;
1340 case INDEX_op_ld8u_i32:
1341 tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX);
1342 break;
1343 case INDEX_op_ld8s_i32:
1344 tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX);
1345 tcg_out32 (s, EXTSB | RS (args[0]) | RA (args[0]));
1346 break;
1347 case INDEX_op_ld16u_i32:
1348 tcg_out_ldst (s, args[0], args[1], args[2], LHZ, LHZX);
1349 break;
1350 case INDEX_op_ld16s_i32:
1351 tcg_out_ldst (s, args[0], args[1], args[2], LHA, LHAX);
1352 break;
1353 case INDEX_op_ld_i32:
1354 tcg_out_ldst (s, args[0], args[1], args[2], LWZ, LWZX);
1355 break;
1356 case INDEX_op_st8_i32:
1357 tcg_out_ldst (s, args[0], args[1], args[2], STB, STBX);
1358 break;
1359 case INDEX_op_st16_i32:
1360 tcg_out_ldst (s, args[0], args[1], args[2], STH, STHX);
1361 break;
1362 case INDEX_op_st_i32:
1363 tcg_out_ldst (s, args[0], args[1], args[2], STW, STWX);
1364 break;
1365
1366 case INDEX_op_add_i32:
1367 if (const_args[2])
1368 ppc_addi (s, args[0], args[1], args[2]);
1369 else
1370 tcg_out32 (s, ADD | TAB (args[0], args[1], args[2]));
1371 break;
1372 case INDEX_op_sub_i32:
1373 if (const_args[2])
1374 ppc_addi (s, args[0], args[1], -args[2]);
1375 else
1376 tcg_out32 (s, SUBF | TAB (args[0], args[2], args[1]));
1377 break;
1378
1379 case INDEX_op_and_i32:
1380 if (const_args[2]) {
1381 uint32_t c;
1382
1383 c = args[2];
1384
1385 if (!c) {
1386 tcg_out_movi (s, TCG_TYPE_I32, args[0], 0);
1387 break;
1388 }
1389 #ifdef __PPU__
1390 uint32_t t, n;
1391 int mb, me;
1392
1393 n = c ^ -(c & 1);
1394 t = n + (n & -n);
1395
1396 if ((t & (t - 1)) == 0) {
1397 int lzc, tzc;
1398
1399 if ((c & 0x80000001) == 0x80000001) {
1400 lzc = clz32 (n);
1401 tzc = ctz32 (n);
1402
1403 mb = 32 - tzc;
1404 me = lzc - 1;
1405 }
1406 else {
1407 lzc = clz32 (c);
1408 tzc = ctz32 (c);
1409
1410 mb = lzc;
1411 me = 31 - tzc;
1412 }
1413
1414 tcg_out32 (s, (RLWINM
1415 | RA (args[0])
1416 | RS (args[1])
1417 | SH (0)
1418 | MB (mb)
1419 | ME (me)
1420 )
1421 );
1422 }
1423 else
1424 #endif /* !__PPU__ */
1425 {
1426 if ((c & 0xffff) == c)
1427 tcg_out32 (s, ANDI | RS (args[1]) | RA (args[0]) | c);
1428 else if ((c & 0xffff0000) == c)
1429 tcg_out32 (s, ANDIS | RS (args[1]) | RA (args[0])
1430 | ((c >> 16) & 0xffff));
1431 else {
1432 tcg_out_movi (s, TCG_TYPE_I32, 0, c);
1433 tcg_out32 (s, AND | SAB (args[1], args[0], 0));
1434 }
1435 }
1436 }
1437 else
1438 tcg_out32 (s, AND | SAB (args[1], args[0], args[2]));
1439 break;
1440 case INDEX_op_or_i32:
1441 if (const_args[2]) {
1442 if (args[2] & 0xffff) {
1443 tcg_out32 (s, ORI | RS (args[1]) | RA (args[0])
1444 | (args[2] & 0xffff));
1445 if (args[2] >> 16)
1446 tcg_out32 (s, ORIS | RS (args[0]) | RA (args[0])
1447 | ((args[2] >> 16) & 0xffff));
1448 }
1449 else {
1450 tcg_out32 (s, ORIS | RS (args[1]) | RA (args[0])
1451 | ((args[2] >> 16) & 0xffff));
1452 }
1453 }
1454 else
1455 tcg_out32 (s, OR | SAB (args[1], args[0], args[2]));
1456 break;
1457 case INDEX_op_xor_i32:
1458 if (const_args[2]) {
1459 if ((args[2] & 0xffff) == args[2])
1460 tcg_out32 (s, XORI | RS (args[1]) | RA (args[0])
1461 | (args[2] & 0xffff));
1462 else if ((args[2] & 0xffff0000) == args[2])
1463 tcg_out32 (s, XORIS | RS (args[1]) | RA (args[0])
1464 | ((args[2] >> 16) & 0xffff));
1465 else {
1466 tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]);
1467 tcg_out32 (s, XOR | SAB (args[1], args[0], 0));
1468 }
1469 }
1470 else
1471 tcg_out32 (s, XOR | SAB (args[1], args[0], args[2]));
1472 break;
1473 case INDEX_op_andc_i32:
1474 tcg_out32 (s, ANDC | SAB (args[1], args[0], args[2]));
1475 break;
1476 case INDEX_op_orc_i32:
1477 tcg_out32 (s, ORC | SAB (args[1], args[0], args[2]));
1478 break;
1479 case INDEX_op_eqv_i32:
1480 tcg_out32 (s, EQV | SAB (args[1], args[0], args[2]));
1481 break;
1482 case INDEX_op_nand_i32:
1483 tcg_out32 (s, NAND | SAB (args[1], args[0], args[2]));
1484 break;
1485 case INDEX_op_nor_i32:
1486 tcg_out32 (s, NOR | SAB (args[1], args[0], args[2]));
1487 break;
1488
1489 case INDEX_op_mul_i32:
1490 if (const_args[2]) {
1491 if (args[2] == (int16_t) args[2])
1492 tcg_out32 (s, MULLI | RT (args[0]) | RA (args[1])
1493 | (args[2] & 0xffff));
1494 else {
1495 tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]);
1496 tcg_out32 (s, MULLW | TAB (args[0], args[1], 0));
1497 }
1498 }
1499 else
1500 tcg_out32 (s, MULLW | TAB (args[0], args[1], args[2]));
1501 break;
1502
1503 case INDEX_op_div_i32:
1504 tcg_out32 (s, DIVW | TAB (args[0], args[1], args[2]));
1505 break;
1506
1507 case INDEX_op_divu_i32:
1508 tcg_out32 (s, DIVWU | TAB (args[0], args[1], args[2]));
1509 break;
1510
1511 case INDEX_op_rem_i32:
1512 tcg_out32 (s, DIVW | TAB (0, args[1], args[2]));
1513 tcg_out32 (s, MULLW | TAB (0, 0, args[2]));
1514 tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
1515 break;
1516
1517 case INDEX_op_remu_i32:
1518 tcg_out32 (s, DIVWU | TAB (0, args[1], args[2]));
1519 tcg_out32 (s, MULLW | TAB (0, 0, args[2]));
1520 tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
1521 break;
1522
1523 case INDEX_op_mulu2_i32:
1524 if (args[0] == args[2] || args[0] == args[3]) {
1525 tcg_out32 (s, MULLW | TAB (0, args[2], args[3]));
1526 tcg_out32 (s, MULHWU | TAB (args[1], args[2], args[3]));
1527 tcg_out_mov (s, TCG_TYPE_I32, args[0], 0);
1528 }
1529 else {
1530 tcg_out32 (s, MULLW | TAB (args[0], args[2], args[3]));
1531 tcg_out32 (s, MULHWU | TAB (args[1], args[2], args[3]));
1532 }
1533 break;
1534
1535 case INDEX_op_shl_i32:
1536 if (const_args[2]) {
1537 tcg_out32 (s, (RLWINM
1538 | RA (args[0])
1539 | RS (args[1])
1540 | SH (args[2])
1541 | MB (0)
1542 | ME (31 - args[2])
1543 )
1544 );
1545 }
1546 else
1547 tcg_out32 (s, SLW | SAB (args[1], args[0], args[2]));
1548 break;
1549 case INDEX_op_shr_i32:
1550 if (const_args[2]) {
1551 tcg_out32 (s, (RLWINM
1552 | RA (args[0])
1553 | RS (args[1])
1554 | SH (32 - args[2])
1555 | MB (args[2])
1556 | ME (31)
1557 )
1558 );
1559 }
1560 else
1561 tcg_out32 (s, SRW | SAB (args[1], args[0], args[2]));
1562 break;
1563 case INDEX_op_sar_i32:
1564 if (const_args[2])
1565 tcg_out32 (s, SRAWI | RS (args[1]) | RA (args[0]) | SH (args[2]));
1566 else
1567 tcg_out32 (s, SRAW | SAB (args[1], args[0], args[2]));
1568 break;
1569 case INDEX_op_rotl_i32:
1570 {
1571 int op = 0
1572 | RA (args[0])
1573 | RS (args[1])
1574 | MB (0)
1575 | ME (31)
1576 | (const_args[2] ? RLWINM | SH (args[2])
1577 : RLWNM | RB (args[2]))
1578 ;
1579 tcg_out32 (s, op);
1580 }
1581 break;
1582 case INDEX_op_rotr_i32:
1583 if (const_args[2]) {
1584 if (!args[2]) {
1585 tcg_out_mov (s, TCG_TYPE_I32, args[0], args[1]);
1586 }
1587 else {
1588 tcg_out32 (s, RLWINM
1589 | RA (args[0])
1590 | RS (args[1])
1591 | SH (32 - args[2])
1592 | MB (0)
1593 | ME (31)
1594 );
1595 }
1596 }
1597 else {
1598 tcg_out32 (s, SUBFIC | RT (0) | RA (args[2]) | 32);
1599 tcg_out32 (s, RLWNM
1600 | RA (args[0])
1601 | RS (args[1])
1602 | RB (0)
1603 | MB (0)
1604 | ME (31)
1605 );
1606 }
1607 break;
1608
1609 case INDEX_op_add2_i32:
1610 if (args[0] == args[3] || args[0] == args[5]) {
1611 tcg_out32 (s, ADDC | TAB (0, args[2], args[4]));
1612 tcg_out32 (s, ADDE | TAB (args[1], args[3], args[5]));
1613 tcg_out_mov (s, TCG_TYPE_I32, args[0], 0);
1614 }
1615 else {
1616 tcg_out32 (s, ADDC | TAB (args[0], args[2], args[4]));
1617 tcg_out32 (s, ADDE | TAB (args[1], args[3], args[5]));
1618 }
1619 break;
1620 case INDEX_op_sub2_i32:
1621 if (args[0] == args[3] || args[0] == args[5]) {
1622 tcg_out32 (s, SUBFC | TAB (0, args[4], args[2]));
1623 tcg_out32 (s, SUBFE | TAB (args[1], args[5], args[3]));
1624 tcg_out_mov (s, TCG_TYPE_I32, args[0], 0);
1625 }
1626 else {
1627 tcg_out32 (s, SUBFC | TAB (args[0], args[4], args[2]));
1628 tcg_out32 (s, SUBFE | TAB (args[1], args[5], args[3]));
1629 }
1630 break;
1631
1632 case INDEX_op_brcond_i32:
1633 /*
1634 args[0] = r0
1635 args[1] = r1
1636 args[2] = cond
1637 args[3] = r1 is const
1638 args[4] = label_index
1639 */
1640 tcg_out_brcond (s, args[2], args[0], args[1], const_args[1], args[3]);
1641 break;
1642 case INDEX_op_brcond2_i32:
1643 tcg_out_brcond2(s, args, const_args);
1644 break;
1645
1646 case INDEX_op_neg_i32:
1647 tcg_out32 (s, NEG | RT (args[0]) | RA (args[1]));
1648 break;
1649
1650 case INDEX_op_not_i32:
1651 tcg_out32 (s, NOR | SAB (args[1], args[0], args[1]));
1652 break;
1653
1654 case INDEX_op_qemu_ld8u:
1655 tcg_out_qemu_ld(s, args, 0);
1656 break;
1657 case INDEX_op_qemu_ld8s:
1658 tcg_out_qemu_ld(s, args, 0 | 4);
1659 break;
1660 case INDEX_op_qemu_ld16u:
1661 tcg_out_qemu_ld(s, args, 1);
1662 break;
1663 case INDEX_op_qemu_ld16s:
1664 tcg_out_qemu_ld(s, args, 1 | 4);
1665 break;
1666 case INDEX_op_qemu_ld32:
1667 tcg_out_qemu_ld(s, args, 2);
1668 break;
1669 case INDEX_op_qemu_ld64:
1670 tcg_out_qemu_ld(s, args, 3);
1671 break;
1672 case INDEX_op_qemu_st8:
1673 tcg_out_qemu_st(s, args, 0);
1674 break;
1675 case INDEX_op_qemu_st16:
1676 tcg_out_qemu_st(s, args, 1);
1677 break;
1678 case INDEX_op_qemu_st32:
1679 tcg_out_qemu_st(s, args, 2);
1680 break;
1681 case INDEX_op_qemu_st64:
1682 tcg_out_qemu_st(s, args, 3);
1683 break;
1684
1685 case INDEX_op_ext8s_i32:
1686 tcg_out32 (s, EXTSB | RS (args[1]) | RA (args[0]));
1687 break;
1688 case INDEX_op_ext8u_i32:
1689 tcg_out32 (s, RLWINM
1690 | RA (args[0])
1691 | RS (args[1])
1692 | SH (0)
1693 | MB (24)
1694 | ME (31)
1695 );
1696 break;
1697 case INDEX_op_ext16s_i32:
1698 tcg_out32 (s, EXTSH | RS (args[1]) | RA (args[0]));
1699 break;
1700 case INDEX_op_ext16u_i32:
1701 tcg_out32 (s, RLWINM
1702 | RA (args[0])
1703 | RS (args[1])
1704 | SH (0)
1705 | MB (16)
1706 | ME (31)
1707 );
1708 break;
1709
1710 case INDEX_op_setcond_i32:
1711 tcg_out_setcond (s, args[3], args[0], args[1], args[2], const_args[2]);
1712 break;
1713 case INDEX_op_setcond2_i32:
1714 tcg_out_setcond2 (s, args, const_args);
1715 break;
1716
1717 case INDEX_op_bswap16_i32:
1718 /* Stolen from gcc's builtin_bswap16 */
1719
1720 /* a1 = abcd */
1721
1722 /* r0 = (a1 << 8) & 0xff00 # 00d0 */
1723 tcg_out32 (s, RLWINM
1724 | RA (0)
1725 | RS (args[1])
1726 | SH (8)
1727 | MB (16)
1728 | ME (23)
1729 );
1730
1731 /* a0 = rotate_left (a1, 24) & 0xff # 000c */
1732 tcg_out32 (s, RLWINM
1733 | RA (args[0])
1734 | RS (args[1])
1735 | SH (24)
1736 | MB (24)
1737 | ME (31)
1738 );
1739
1740 /* a0 = a0 | r0 # 00dc */
1741 tcg_out32 (s, OR | SAB (0, args[0], args[0]));
1742 break;
1743
1744 case INDEX_op_bswap32_i32:
1745 /* Stolen from gcc's builtin_bswap32 */
1746 {
1747 int a0 = args[0];
1748
1749 /* a1 = args[1] # abcd */
1750
1751 if (a0 == args[1]) {
1752 a0 = 0;
1753 }
1754
1755 /* a0 = rotate_left (a1, 8) # bcda */
1756 tcg_out32 (s, RLWINM
1757 | RA (a0)
1758 | RS (args[1])
1759 | SH (8)
1760 | MB (0)
1761 | ME (31)
1762 );
1763
1764 /* a0 = (a0 & ~0xff000000) | ((a1 << 24) & 0xff000000) # dcda */
1765 tcg_out32 (s, RLWIMI
1766 | RA (a0)
1767 | RS (args[1])
1768 | SH (24)
1769 | MB (0)
1770 | ME (7)
1771 );
1772
1773 /* a0 = (a0 & ~0x0000ff00) | ((a1 << 24) & 0x0000ff00) # dcba */
1774 tcg_out32 (s, RLWIMI
1775 | RA (a0)
1776 | RS (args[1])
1777 | SH (24)
1778 | MB (16)
1779 | ME (23)
1780 );
1781
1782 if (!a0) {
1783 tcg_out_mov (s, TCG_TYPE_I32, args[0], a0);
1784 }
1785 }
1786 break;
1787
1788 default:
1789 tcg_dump_ops (s, stderr);
1790 tcg_abort ();
1791 }
1792 }
1793
1794 static const TCGTargetOpDef ppc_op_defs[] = {
1795 { INDEX_op_exit_tb, { } },
1796 { INDEX_op_goto_tb, { } },
1797 { INDEX_op_call, { "ri" } },
1798 { INDEX_op_jmp, { "ri" } },
1799 { INDEX_op_br, { } },
1800
1801 { INDEX_op_mov_i32, { "r", "r" } },
1802 { INDEX_op_movi_i32, { "r" } },
1803 { INDEX_op_ld8u_i32, { "r", "r" } },
1804 { INDEX_op_ld8s_i32, { "r", "r" } },
1805 { INDEX_op_ld16u_i32, { "r", "r" } },
1806 { INDEX_op_ld16s_i32, { "r", "r" } },
1807 { INDEX_op_ld_i32, { "r", "r" } },
1808 { INDEX_op_st8_i32, { "r", "r" } },
1809 { INDEX_op_st16_i32, { "r", "r" } },
1810 { INDEX_op_st_i32, { "r", "r" } },
1811
1812 { INDEX_op_add_i32, { "r", "r", "ri" } },
1813 { INDEX_op_mul_i32, { "r", "r", "ri" } },
1814 { INDEX_op_div_i32, { "r", "r", "r" } },
1815 { INDEX_op_divu_i32, { "r", "r", "r" } },
1816 { INDEX_op_rem_i32, { "r", "r", "r" } },
1817 { INDEX_op_remu_i32, { "r", "r", "r" } },
1818 { INDEX_op_mulu2_i32, { "r", "r", "r", "r" } },
1819 { INDEX_op_sub_i32, { "r", "r", "ri" } },
1820 { INDEX_op_and_i32, { "r", "r", "ri" } },
1821 { INDEX_op_or_i32, { "r", "r", "ri" } },
1822 { INDEX_op_xor_i32, { "r", "r", "ri" } },
1823
1824 { INDEX_op_shl_i32, { "r", "r", "ri" } },
1825 { INDEX_op_shr_i32, { "r", "r", "ri" } },
1826 { INDEX_op_sar_i32, { "r", "r", "ri" } },
1827
1828 { INDEX_op_rotl_i32, { "r", "r", "ri" } },
1829 { INDEX_op_rotr_i32, { "r", "r", "ri" } },
1830
1831 { INDEX_op_brcond_i32, { "r", "ri" } },
1832
1833 { INDEX_op_add2_i32, { "r", "r", "r", "r", "r", "r" } },
1834 { INDEX_op_sub2_i32, { "r", "r", "r", "r", "r", "r" } },
1835 { INDEX_op_brcond2_i32, { "r", "r", "r", "r" } },
1836
1837 { INDEX_op_neg_i32, { "r", "r" } },
1838 { INDEX_op_not_i32, { "r", "r" } },
1839
1840 { INDEX_op_andc_i32, { "r", "r", "r" } },
1841 { INDEX_op_orc_i32, { "r", "r", "r" } },
1842 { INDEX_op_eqv_i32, { "r", "r", "r" } },
1843 { INDEX_op_nand_i32, { "r", "r", "r" } },
1844 { INDEX_op_nor_i32, { "r", "r", "r" } },
1845
1846 { INDEX_op_setcond_i32, { "r", "r", "ri" } },
1847 { INDEX_op_setcond2_i32, { "r", "r", "r", "ri", "ri" } },
1848
1849 { INDEX_op_bswap16_i32, { "r", "r" } },
1850 { INDEX_op_bswap32_i32, { "r", "r" } },
1851
1852 #if TARGET_LONG_BITS == 32
1853 { INDEX_op_qemu_ld8u, { "r", "L" } },
1854 { INDEX_op_qemu_ld8s, { "r", "L" } },
1855 { INDEX_op_qemu_ld16u, { "r", "L" } },
1856 { INDEX_op_qemu_ld16s, { "r", "L" } },
1857 { INDEX_op_qemu_ld32, { "r", "L" } },
1858 { INDEX_op_qemu_ld64, { "r", "r", "L" } },
1859
1860 { INDEX_op_qemu_st8, { "K", "K" } },
1861 { INDEX_op_qemu_st16, { "K", "K" } },
1862 { INDEX_op_qemu_st32, { "K", "K" } },
1863 { INDEX_op_qemu_st64, { "M", "M", "M" } },
1864 #else
1865 { INDEX_op_qemu_ld8u, { "r", "L", "L" } },
1866 { INDEX_op_qemu_ld8s, { "r", "L", "L" } },
1867 { INDEX_op_qemu_ld16u, { "r", "L", "L" } },
1868 { INDEX_op_qemu_ld16s, { "r", "L", "L" } },
1869 { INDEX_op_qemu_ld32, { "r", "L", "L" } },
1870 { INDEX_op_qemu_ld64, { "r", "L", "L", "L" } },
1871
1872 { INDEX_op_qemu_st8, { "K", "K", "K" } },
1873 { INDEX_op_qemu_st16, { "K", "K", "K" } },
1874 { INDEX_op_qemu_st32, { "K", "K", "K" } },
1875 { INDEX_op_qemu_st64, { "M", "M", "M", "M" } },
1876 #endif
1877
1878 { INDEX_op_ext8s_i32, { "r", "r" } },
1879 { INDEX_op_ext8u_i32, { "r", "r" } },
1880 { INDEX_op_ext16s_i32, { "r", "r" } },
1881 { INDEX_op_ext16u_i32, { "r", "r" } },
1882
1883 { -1 },
1884 };
1885
1886 static void tcg_target_init(TCGContext *s)
1887 {
1888 tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff);
1889 tcg_regset_set32(tcg_target_call_clobber_regs, 0,
1890 (1 << TCG_REG_R0) |
1891 #ifdef _CALL_DARWIN
1892 (1 << TCG_REG_R2) |
1893 #endif
1894 (1 << TCG_REG_R3) |
1895 (1 << TCG_REG_R4) |
1896 (1 << TCG_REG_R5) |
1897 (1 << TCG_REG_R6) |
1898 (1 << TCG_REG_R7) |
1899 (1 << TCG_REG_R8) |
1900 (1 << TCG_REG_R9) |
1901 (1 << TCG_REG_R10) |
1902 (1 << TCG_REG_R11) |
1903 (1 << TCG_REG_R12)
1904 );
1905
1906 tcg_regset_clear(s->reserved_regs);
1907 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0);
1908 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1);
1909 #ifndef _CALL_DARWIN
1910 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R2);
1911 #endif
1912 #ifdef _CALL_SYSV
1913 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R13);
1914 #endif
1915
1916 tcg_add_target_add_op_defs(ppc_op_defs);
1917 tcg_set_frame(s, TCG_AREG0, offsetof(CPUState, temp_buf),
1918 CPU_TEMP_BUF_NLONGS * sizeof(long));
1919 }
Qemu copy for testing