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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
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 * of this software and associated documentation files (the "Software"), to deal
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 * in the Software without restriction, including without limitation the rights
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * copies of the Software, and to permit persons to whom the Software is
11
 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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 * 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,
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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 * THE SOFTWARE.
23
 */
24

    
25
#define TCG_CT_CONST_U32 0x100
26

    
27
static uint8_t *tb_ret_addr;
28

    
29
#define FAST_PATH
30

    
31
#if TARGET_PHYS_ADDR_BITS == 32
32
#define LD_ADDEND LWZ
33
#else
34
#define LD_ADDEND LD
35
#endif
36

    
37
#if TARGET_LONG_BITS == 32
38
#define LD_ADDR LWZU
39
#define CMP_L 0
40
#else
41
#define LD_ADDR LDU
42
#define CMP_L (1<<21)
43
#endif
44

    
45
static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
46
    "r0",
47
    "r1",
48
    "rp",
49
    "r3",
50
    "r4",
51
    "r5",
52
    "r6",
53
    "r7",
54
    "r8",
55
    "r9",
56
    "r10",
57
    "r11",
58
    "r12",
59
    "r13",
60
    "r14",
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    "r15",
62
    "r16",
63
    "r17",
64
    "r18",
65
    "r19",
66
    "r20",
67
    "r21",
68
    "r22",
69
    "r23",
70
    "r24",
71
    "r25",
72
    "r26",
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    "r27",
74
    "r28",
75
    "r29",
76
    "r30",
77
    "r31"
78
};
79

    
80
static const int tcg_target_reg_alloc_order[] = {
81
    TCG_REG_R14,
82
    TCG_REG_R15,
83
    TCG_REG_R16,
84
    TCG_REG_R17,
85
    TCG_REG_R18,
86
    TCG_REG_R19,
87
    TCG_REG_R20,
88
    TCG_REG_R21,
89
    TCG_REG_R22,
90
    TCG_REG_R23,
91
    TCG_REG_R28,
92
    TCG_REG_R29,
93
    TCG_REG_R30,
94
    TCG_REG_R31,
95
    TCG_REG_R3,
96
    TCG_REG_R4,
97
    TCG_REG_R5,
98
    TCG_REG_R6,
99
    TCG_REG_R7,
100
    TCG_REG_R8,
101
    TCG_REG_R9,
102
    TCG_REG_R10,
103
    TCG_REG_R11,
104
    TCG_REG_R12,
105
    TCG_REG_R13,
106
    TCG_REG_R0,
107
    TCG_REG_R1,
108
    TCG_REG_R2,
109
    TCG_REG_R24,
110
    TCG_REG_R25,
111
    TCG_REG_R26,
112
    TCG_REG_R27
113
};
114

    
115
static const int tcg_target_call_iarg_regs[] = {
116
    TCG_REG_R3,
117
    TCG_REG_R4,
118
    TCG_REG_R5,
119
    TCG_REG_R6,
120
    TCG_REG_R7,
121
    TCG_REG_R8,
122
    TCG_REG_R9,
123
    TCG_REG_R10
124
};
125

    
126
static const int tcg_target_call_oarg_regs[2] = {
127
    TCG_REG_R3
128
};
129

    
130
static const int tcg_target_callee_save_regs[] = {
131
    TCG_REG_R14,
132
    TCG_REG_R15,
133
    TCG_REG_R16,
134
    TCG_REG_R17,
135
    TCG_REG_R18,
136
    TCG_REG_R19,
137
    TCG_REG_R20,
138
    TCG_REG_R21,
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    TCG_REG_R22,
140
    TCG_REG_R23,
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    TCG_REG_R28,
142
    TCG_REG_R29,
143
    TCG_REG_R30,
144
    TCG_REG_R31
145
};
146

    
147
static uint32_t reloc_pc24_val (void *pc, tcg_target_long target)
148
{
149
    tcg_target_long disp;
150

    
151
    disp = target - (tcg_target_long) pc;
152
    if ((disp << 38) >> 38 != disp)
153
        tcg_abort ();
154

    
155
    return disp & 0x3fffffc;
156
}
157

    
158
static void reloc_pc24 (void *pc, tcg_target_long target)
159
{
160
    *(uint32_t *) pc = (*(uint32_t *) pc & ~0x3fffffc)
161
        | reloc_pc24_val (pc, target);
162
}
163

    
164
static uint16_t reloc_pc14_val (void *pc, tcg_target_long target)
165
{
166
    tcg_target_long disp;
167

    
168
    disp = target - (tcg_target_long) pc;
169
    if (disp != (int16_t) disp)
170
        tcg_abort ();
171

    
172
    return disp & 0xfffc;
173
}
174

    
175
static void reloc_pc14 (void *pc, tcg_target_long target)
176
{
177
    *(uint32_t *) pc = (*(uint32_t *) pc & ~0xfffc)
178
        | reloc_pc14_val (pc, target);
179
}
180

    
181
static void patch_reloc (uint8_t *code_ptr, int type,
182
                         tcg_target_long value, tcg_target_long addend)
183
{
184
    value += addend;
185
    switch (type) {
186
    case R_PPC_REL14:
187
        reloc_pc14 (code_ptr, value);
188
        break;
189
    case R_PPC_REL24:
190
        reloc_pc24 (code_ptr, value);
191
        break;
192
    default:
193
        tcg_abort ();
194
    }
195
}
196

    
197
/* maximum number of register used for input function arguments */
198
static int tcg_target_get_call_iarg_regs_count (int flags)
199
{
200
    return sizeof (tcg_target_call_iarg_regs) / sizeof (tcg_target_call_iarg_regs[0]);
201
}
202

    
203
/* parse target specific constraints */
204
static int target_parse_constraint (TCGArgConstraint *ct, const char **pct_str)
205
{
206
    const char *ct_str;
207

    
208
    ct_str = *pct_str;
209
    switch (ct_str[0]) {
210
    case 'A': case 'B': case 'C': case 'D':
211
        ct->ct |= TCG_CT_REG;
212
        tcg_regset_set_reg (ct->u.regs, 3 + ct_str[0] - 'A');
213
        break;
214
    case 'r':
215
        ct->ct |= TCG_CT_REG;
216
        tcg_regset_set32 (ct->u.regs, 0, 0xffffffff);
217
        break;
218
    case 'L':                   /* qemu_ld constraint */
219
        ct->ct |= TCG_CT_REG;
220
        tcg_regset_set32 (ct->u.regs, 0, 0xffffffff);
221
        tcg_regset_reset_reg (ct->u.regs, TCG_REG_R3);
222
        tcg_regset_reset_reg (ct->u.regs, TCG_REG_R4);
223
        break;
224
    case 'S':                   /* qemu_st constraint */
225
        ct->ct |= TCG_CT_REG;
226
        tcg_regset_set32 (ct->u.regs, 0, 0xffffffff);
227
        tcg_regset_reset_reg (ct->u.regs, TCG_REG_R3);
228
        tcg_regset_reset_reg (ct->u.regs, TCG_REG_R4);
229
        tcg_regset_reset_reg (ct->u.regs, TCG_REG_R5);
230
        break;
231
    case 'Z':
232
        ct->ct |= TCG_CT_CONST_U32;
233
        break;
234
    default:
235
        return -1;
236
    }
237
    ct_str++;
238
    *pct_str = ct_str;
239
    return 0;
240
}
241

    
242
/* test if a constant matches the constraint */
243
static int tcg_target_const_match (tcg_target_long val,
244
                                   const TCGArgConstraint *arg_ct)
245
{
246
    int ct;
247

    
248
    ct = arg_ct->ct;
249
    if (ct & TCG_CT_CONST)
250
        return 1;
251
    else if ((ct & TCG_CT_CONST_U32) && (val == (uint32_t) val))
252
        return 1;
253
    return 0;
254
}
255

    
256
#define OPCD(opc) ((opc)<<26)
257
#define XO19(opc) (OPCD(19)|((opc)<<1))
258
#define XO30(opc) (OPCD(30)|((opc)<<2))
259
#define XO31(opc) (OPCD(31)|((opc)<<1))
260
#define XO58(opc) (OPCD(58)|(opc))
261
#define XO62(opc) (OPCD(62)|(opc))
262

    
263
#define B      OPCD( 18)
264
#define BC     OPCD( 16)
265
#define LBZ    OPCD( 34)
266
#define LHZ    OPCD( 40)
267
#define LHA    OPCD( 42)
268
#define LWZ    OPCD( 32)
269
#define STB    OPCD( 38)
270
#define STH    OPCD( 44)
271
#define STW    OPCD( 36)
272

    
273
#define STD    XO62(  0)
274
#define STDU   XO62(  1)
275
#define STDX   XO31(149)
276

    
277
#define LD     XO58(  0)
278
#define LDX    XO31( 21)
279
#define LDU    XO58(  1)
280
#define LWA    XO58(  2)
281
#define LWAX   XO31(341)
282

    
283
#define ADDI   OPCD( 14)
284
#define ADDIS  OPCD( 15)
285
#define ORI    OPCD( 24)
286
#define ORIS   OPCD( 25)
287
#define XORI   OPCD( 26)
288
#define XORIS  OPCD( 27)
289
#define ANDI   OPCD( 28)
290
#define ANDIS  OPCD( 29)
291
#define MULLI  OPCD(  7)
292
#define CMPLI  OPCD( 10)
293
#define CMPI   OPCD( 11)
294

    
295
#define LWZU   OPCD( 33)
296
#define STWU   OPCD( 37)
297

    
298
#define RLWINM OPCD( 21)
299

    
300
#define RLDICL XO30(  0)
301
#define RLDICR XO30(  1)
302

    
303
#define BCLR   XO19( 16)
304
#define BCCTR  XO19(528)
305
#define CRAND  XO19(257)
306
#define CRANDC XO19(129)
307
#define CRNAND XO19(225)
308
#define CROR   XO19(449)
309

    
310
#define EXTSB  XO31(954)
311
#define EXTSH  XO31(922)
312
#define EXTSW  XO31(986)
313
#define ADD    XO31(266)
314
#define ADDE   XO31(138)
315
#define ADDC   XO31( 10)
316
#define AND    XO31( 28)
317
#define SUBF   XO31( 40)
318
#define SUBFC  XO31(  8)
319
#define SUBFE  XO31(136)
320
#define OR     XO31(444)
321
#define XOR    XO31(316)
322
#define MULLW  XO31(235)
323
#define MULHWU XO31( 11)
324
#define DIVW   XO31(491)
325
#define DIVWU  XO31(459)
326
#define CMP    XO31(  0)
327
#define CMPL   XO31( 32)
328
#define LHBRX  XO31(790)
329
#define LWBRX  XO31(534)
330
#define STHBRX XO31(918)
331
#define STWBRX XO31(662)
332
#define MFSPR  XO31(339)
333
#define MTSPR  XO31(467)
334
#define SRAWI  XO31(824)
335
#define NEG    XO31(104)
336

    
337
#define MULLD  XO31(233)
338
#define MULHD  XO31( 73)
339
#define MULHDU XO31(  9)
340
#define DIVD   XO31(489)
341
#define DIVDU  XO31(457)
342

    
343
#define LBZX   XO31( 87)
344
#define LHZX   XO31(276)
345
#define LHAX   XO31(343)
346
#define LWZX   XO31( 23)
347
#define STBX   XO31(215)
348
#define STHX   XO31(407)
349
#define STWX   XO31(151)
350

    
351
#define SPR(a,b) ((((a)<<5)|(b))<<11)
352
#define LR     SPR(8, 0)
353
#define CTR    SPR(9, 0)
354

    
355
#define SLW    XO31( 24)
356
#define SRW    XO31(536)
357
#define SRAW   XO31(792)
358

    
359
#define SLD    XO31( 27)
360
#define SRD    XO31(539)
361
#define SRAD   XO31(794)
362
#define SRADI  XO31(413<<1)
363

    
364
#define LMW    OPCD( 46)
365
#define STMW   OPCD( 47)
366

    
367
#define TW     XO31( 4)
368
#define TRAP   (TW | TO (31))
369

    
370
#define RT(r) ((r)<<21)
371
#define RS(r) ((r)<<21)
372
#define RA(r) ((r)<<16)
373
#define RB(r) ((r)<<11)
374
#define TO(t) ((t)<<21)
375
#define SH(s) ((s)<<11)
376
#define MB(b) ((b)<<6)
377
#define ME(e) ((e)<<1)
378
#define BO(o) ((o)<<21)
379
#define MB64(b) ((b)<<5)
380

    
381
#define LK    1
382

    
383
#define TAB(t,a,b) (RT(t) | RA(a) | RB(b))
384
#define SAB(s,a,b) (RS(s) | RA(a) | RB(b))
385

    
386
#define BF(n)    ((n)<<23)
387
#define BI(n, c) (((c)+((n)*4))<<16)
388
#define BT(n, c) (((c)+((n)*4))<<21)
389
#define BA(n, c) (((c)+((n)*4))<<16)
390
#define BB(n, c) (((c)+((n)*4))<<11)
391

    
392
#define BO_COND_TRUE  BO (12)
393
#define BO_COND_FALSE BO ( 4)
394
#define BO_ALWAYS     BO (20)
395

    
396
enum {
397
    CR_LT,
398
    CR_GT,
399
    CR_EQ,
400
    CR_SO
401
};
402

    
403
static const uint32_t tcg_to_bc[10] = {
404
    [TCG_COND_EQ]  = BC | BI (7, CR_EQ) | BO_COND_TRUE,
405
    [TCG_COND_NE]  = BC | BI (7, CR_EQ) | BO_COND_FALSE,
406
    [TCG_COND_LT]  = BC | BI (7, CR_LT) | BO_COND_TRUE,
407
    [TCG_COND_GE]  = BC | BI (7, CR_LT) | BO_COND_FALSE,
408
    [TCG_COND_LE]  = BC | BI (7, CR_GT) | BO_COND_FALSE,
409
    [TCG_COND_GT]  = BC | BI (7, CR_GT) | BO_COND_TRUE,
410
    [TCG_COND_LTU] = BC | BI (7, CR_LT) | BO_COND_TRUE,
411
    [TCG_COND_GEU] = BC | BI (7, CR_LT) | BO_COND_FALSE,
412
    [TCG_COND_LEU] = BC | BI (7, CR_GT) | BO_COND_FALSE,
413
    [TCG_COND_GTU] = BC | BI (7, CR_GT) | BO_COND_TRUE,
414
};
415

    
416
static void tcg_out_mov (TCGContext *s, int ret, int arg)
417
{
418
    tcg_out32 (s, OR | SAB (arg, ret, arg));
419
}
420

    
421
static void tcg_out_rld (TCGContext *s, int op, int ra, int rs, int sh, int mb)
422
{
423
    sh = SH (sh & 0x1f) | (((sh >> 5) & 1) << 1);
424
    mb = MB64 ((mb >> 5) | ((mb << 1) & 0x3f));
425
    tcg_out32 (s, op | RA (ra) | RS (rs) | sh | mb);
426
}
427

    
428
static void tcg_out_movi32 (TCGContext *s, int ret, int32_t arg)
429
{
430
    if (arg == (int16_t) arg)
431
        tcg_out32 (s, ADDI | RT (ret) | RA (0) | (arg & 0xffff));
432
    else {
433
        tcg_out32 (s, ADDIS | RT (ret) | RA (0) | ((arg >> 16) & 0xffff));
434
        if (arg & 0xffff)
435
            tcg_out32 (s, ORI | RS (ret) | RA (ret) | (arg & 0xffff));
436
    }
437
}
438

    
439
static void tcg_out_movi (TCGContext *s, TCGType type,
440
                          int ret, tcg_target_long arg)
441
{
442
    int32_t arg32 = arg;
443

    
444
    if (type == TCG_TYPE_I32 || arg == arg32) {
445
        tcg_out_movi32 (s, ret, arg32);
446
    }
447
    else {
448
        if ((uint64_t) arg >> 32) {
449
            uint16_t h16 = arg >> 16;
450
            uint16_t l16 = arg;
451

    
452
            tcg_out_movi32 (s, ret, arg >> 32);
453
            tcg_out_rld (s, RLDICR, ret, ret, 32, 31);
454
            if (h16) tcg_out32 (s, ORIS | RS (ret) | RA (ret) | h16);
455
            if (l16) tcg_out32 (s, ORI | RS (ret) | RA (ret) | l16);
456
        }
457
        else {
458
            tcg_out_movi32 (s, ret, arg32);
459
            if (arg32 < 0)
460
                tcg_out_rld (s, RLDICL, ret, ret, 0, 32);
461
        }
462
    }
463
}
464

    
465
static void tcg_out_call (TCGContext *s, tcg_target_long arg, int const_arg)
466
{
467
    int reg;
468

    
469
    if (const_arg) {
470
        reg = 2;
471
        tcg_out_movi (s, TCG_TYPE_I64, reg, arg);
472
    }
473
    else reg = arg;
474

    
475
    tcg_out32 (s, LD | RT (0) | RA (reg));
476
    tcg_out32 (s, MTSPR | RA (0) | CTR);
477
    tcg_out32 (s, LD | RT (11) | RA (reg) | 16);
478
    tcg_out32 (s, LD | RT (2) | RA (reg) | 8);
479
    tcg_out32 (s, BCCTR | BO_ALWAYS | LK);
480
}
481

    
482
static void tcg_out_ldst (TCGContext *s, int ret, int addr,
483
                          int offset, int op1, int op2)
484
{
485
    if (offset == (int16_t) offset)
486
        tcg_out32 (s, op1 | RT (ret) | RA (addr) | (offset & 0xffff));
487
    else {
488
        tcg_out_movi (s, TCG_TYPE_I64, 0, offset);
489
        tcg_out32 (s, op2 | RT (ret) | RA (addr) | RB (0));
490
    }
491
}
492

    
493
static void tcg_out_b (TCGContext *s, int mask, tcg_target_long target)
494
{
495
    tcg_target_long disp;
496

    
497
    disp = target - (tcg_target_long) s->code_ptr;
498
    if ((disp << 38) >> 38 == disp)
499
        tcg_out32 (s, B | (disp & 0x3fffffc) | mask);
500
    else {
501
        tcg_out_movi (s, TCG_TYPE_I64, 0, (tcg_target_long) target);
502
        tcg_out32 (s, MTSPR | RS (0) | CTR);
503
        tcg_out32 (s, BCCTR | BO_ALWAYS | mask);
504
    }
505
}
506

    
507
#if defined (CONFIG_SOFTMMU)
508
extern void __ldb_mmu(void);
509
extern void __ldw_mmu(void);
510
extern void __ldl_mmu(void);
511
extern void __ldq_mmu(void);
512

    
513
extern void __stb_mmu(void);
514
extern void __stw_mmu(void);
515
extern void __stl_mmu(void);
516
extern void __stq_mmu(void);
517

    
518
static void *qemu_ld_helpers[4] = {
519
    __ldb_mmu,
520
    __ldw_mmu,
521
    __ldl_mmu,
522
    __ldq_mmu,
523
};
524

    
525
static void *qemu_st_helpers[4] = {
526
    __stb_mmu,
527
    __stw_mmu,
528
    __stl_mmu,
529
    __stq_mmu,
530
};
531

    
532
static void tcg_out_tlb_read (TCGContext *s, int r0, int r1, int r2,
533
                              int addr_reg, int s_bits, int offset)
534
{
535
#if TARGET_LONG_BITS == 32
536
    tcg_out_rld (s, RLDICL, addr_reg, addr_reg, 0, 32);
537

    
538
    tcg_out32 (s, (RLWINM
539
                   | RA (r0)
540
                   | RS (addr_reg)
541
                   | SH (32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS))
542
                   | MB (32 - (CPU_TLB_BITS + CPU_TLB_ENTRY_BITS))
543
                   | ME (31 - CPU_TLB_ENTRY_BITS)
544
                   )
545
        );
546
    tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (TCG_AREG0));
547
    tcg_out32 (s, (LWZU | RT (r1) | RA (r0) | offset));
548
    tcg_out32 (s, (RLWINM
549
                   | RA (r2)
550
                   | RS (addr_reg)
551
                   | SH (0)
552
                   | MB ((32 - s_bits) & 31)
553
                   | ME (31 - TARGET_PAGE_BITS)
554
                   )
555
        );
556
#else
557
    tcg_out_rld (s, RLDICL, r0, addr_reg,
558
                 64 - TARGET_PAGE_BITS,
559
                 64 - CPU_TLB_BITS);
560
    tcg_out_rld (s, RLDICR, r0, r0,
561
                 CPU_TLB_ENTRY_BITS,
562
                 63 - CPU_TLB_ENTRY_BITS);
563

    
564
    tcg_out32 (s, ADD | TAB (r0, r0, TCG_AREG0));
565
    tcg_out32 (s, LD_ADDR | RT (r1) | RA (r0) | offset);
566

    
567
    if (!s_bits) {
568
        tcg_out_rld (s, RLDICR, r2, addr_reg, 0, 63 - TARGET_PAGE_BITS);
569
    }
570
    else {
571
        tcg_out_rld (s, RLDICL, r2, addr_reg,
572
                     64 - TARGET_PAGE_BITS,
573
                     TARGET_PAGE_BITS - s_bits);
574
        tcg_out_rld (s, RLDICL, r2, r2, TARGET_PAGE_BITS, 0);
575
    }
576
#endif
577
}
578
#endif
579

    
580
static void tcg_out_qemu_ld (TCGContext *s, const TCGArg *args, int opc)
581
{
582
    int addr_reg, data_reg, r0, mem_index, s_bits, bswap;
583
#ifdef CONFIG_SOFTMMU
584
    int r1, r2;
585
    void *label1_ptr, *label2_ptr;
586
#endif
587

    
588
    data_reg = *args++;
589
    addr_reg = *args++;
590
    mem_index = *args;
591
    s_bits = opc & 3;
592

    
593
#ifdef CONFIG_SOFTMMU
594
    r0 = 3;
595
    r1 = 4;
596
    r2 = 0;
597

    
598
    tcg_out_tlb_read (s, r0, r1, r2, addr_reg, s_bits,
599
                      offsetof (CPUState, tlb_table[mem_index][0].addr_read));
600

    
601
    tcg_out32 (s, CMP | BF (7) | RA (r2) | RB (r1) | CMP_L);
602

    
603
    label1_ptr = s->code_ptr;
604
#ifdef FAST_PATH
605
    tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE);
606
#endif
607

    
608
    /* slow path */
609
    tcg_out_mov (s, 3, addr_reg);
610
    tcg_out_movi (s, TCG_TYPE_I64, 4, mem_index);
611

    
612
    tcg_out_call (s, (tcg_target_long) qemu_ld_helpers[s_bits], 1);
613

    
614
    switch (opc) {
615
    case 0|4:
616
        tcg_out32 (s, EXTSB | RA (data_reg) | RS (3));
617
        break;
618
    case 1|4:
619
        tcg_out32 (s, EXTSH | RA (data_reg) | RS (3));
620
        break;
621
    case 2|4:
622
        tcg_out32 (s, EXTSW | RA (data_reg) | RS (3));
623
        break;
624
    case 0:
625
    case 1:
626
    case 2:
627
    case 3:
628
        if (data_reg != 3)
629
            tcg_out_mov (s, data_reg, 3);
630
        break;
631
    }
632
    label2_ptr = s->code_ptr;
633
    tcg_out32 (s, B);
634

    
635
    /* label1: fast path */
636
#ifdef FAST_PATH
637
    reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr);
638
#endif
639

    
640
    /* r0 now contains &env->tlb_table[mem_index][index].addr_read */
641
    tcg_out32 (s, (LD_ADDEND
642
                   | RT (r0)
643
                   | RA (r0)
644
                   | (offsetof (CPUTLBEntry, addend)
645
                      - offsetof (CPUTLBEntry, addr_read))
646
                   ));
647
    /* r0 = env->tlb_table[mem_index][index].addend */
648
    tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg));
649
    /* r0 = env->tlb_table[mem_index][index].addend + addr */
650

    
651
#else  /* !CONFIG_SOFTMMU */
652
    r0 = addr_reg;
653
#endif
654

    
655
#ifdef TARGET_WORDS_BIGENDIAN
656
    bswap = 0;
657
#else
658
    bswap = 1;
659
#endif
660
    switch (opc) {
661
    default:
662
    case 0:
663
        tcg_out32 (s, LBZ | RT (data_reg) | RA (r0));
664
        break;
665
    case 0|4:
666
        tcg_out32 (s, LBZ | RT (data_reg) | RA (r0));
667
        tcg_out32 (s, EXTSB | RA (data_reg) | RS (data_reg));
668
        break;
669
    case 1:
670
        if (bswap) tcg_out32 (s, LHBRX | RT (data_reg) | RB (r0));
671
        else tcg_out32 (s, LHZ | RT (data_reg) | RA (r0));
672
        break;
673
    case 1|4:
674
        if (bswap) {
675
            tcg_out32 (s, LHBRX | RT (data_reg) | RB (r0));
676
            tcg_out32 (s, EXTSH | RA (data_reg) | RS (data_reg));
677
        }
678
        else tcg_out32 (s, LHA | RT (data_reg) | RA (r0));
679
        break;
680
    case 2:
681
        if (bswap) tcg_out32 (s, LWBRX | RT (data_reg) | RB (r0));
682
        else tcg_out32 (s, LWZ | RT (data_reg)| RA (r0));
683
        break;
684
    case 2|4:
685
        if (bswap) {
686
            tcg_out32 (s, LWBRX | RT (data_reg) | RB (r0));
687
            tcg_out32 (s, EXTSW | RA (data_reg) | RS (data_reg));
688
        }
689
        else tcg_out32 (s, LWA | RT (data_reg)| RA (r0));
690
        break;
691
    case 3:
692
        if (bswap) {
693
            tcg_out32 (s, LWBRX | RT (data_reg) | RB (r0));
694
            tcg_out32 (s, ADDI | RT (r0) | RA (r0) | 4);
695
            tcg_out32 (s, LWBRX | RT (r0) | RB (r0));
696
            tcg_out_rld (s, RLDICR, r0, r0, 32, 31);
697
            tcg_out32 (s, OR | SAB (r0, data_reg, data_reg));
698
        }
699
        else tcg_out32 (s, LD | RT (data_reg) | RA (r0));
700
        break;
701
    }
702

    
703
#ifdef CONFIG_SOFTMMU
704
    reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr);
705
#endif
706
}
707

    
708
static void tcg_out_qemu_st (TCGContext *s, const TCGArg *args, int opc)
709
{
710
    int addr_reg, r0, r1, data_reg, mem_index, bswap;
711
#ifdef CONFIG_SOFTMMU
712
    int r2;
713
    void *label1_ptr, *label2_ptr;
714
#endif
715

    
716
    data_reg = *args++;
717
    addr_reg = *args++;
718
    mem_index = *args;
719

    
720
#ifdef CONFIG_SOFTMMU
721
    r0 = 3;
722
    r1 = 4;
723
    r2 = 0;
724

    
725
    tcg_out_tlb_read (s, r0, r1, r2, addr_reg, opc,
726
                      offsetof (CPUState, tlb_table[mem_index][0].addr_write));
727

    
728
    tcg_out32 (s, CMP | BF (7) | RA (r2) | RB (r1) | CMP_L);
729

    
730
    label1_ptr = s->code_ptr;
731
#ifdef FAST_PATH
732
    tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE);
733
#endif
734

    
735
    /* slow path */
736
    tcg_out_mov (s, 3, addr_reg);
737
    tcg_out_rld (s, RLDICL, 4, data_reg, 0, 64 - (1 << (3 + opc)));
738
    tcg_out_movi (s, TCG_TYPE_I64, 5, mem_index);
739

    
740
    tcg_out_call (s, (tcg_target_long) qemu_st_helpers[opc], 1);
741

    
742
    label2_ptr = s->code_ptr;
743
    tcg_out32 (s, B);
744

    
745
    /* label1: fast path */
746
#ifdef FAST_PATH
747
    reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr);
748
#endif
749

    
750
    tcg_out32 (s, (LD_ADDEND
751
                   | RT (r0)
752
                   | RA (r0)
753
                   | (offsetof (CPUTLBEntry, addend)
754
                      - offsetof (CPUTLBEntry, addr_write))
755
                   ));
756
    /* r0 = env->tlb_table[mem_index][index].addend */
757
    tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg));
758
    /* r0 = env->tlb_table[mem_index][index].addend + addr */
759

    
760
#else  /* !CONFIG_SOFTMMU */
761
    r1 = 4;
762
    r0 = addr_reg;
763
#endif
764

    
765
#ifdef TARGET_WORDS_BIGENDIAN
766
    bswap = 0;
767
#else
768
    bswap = 1;
769
#endif
770
    switch (opc) {
771
    case 0:
772
        tcg_out32 (s, STB | RS (data_reg) | RA (r0));
773
        break;
774
    case 1:
775
        if (bswap) tcg_out32 (s, STHBRX | RS (data_reg) | RA (0) | RB (r0));
776
        else tcg_out32 (s, STH | RS (data_reg) | RA (r0));
777
        break;
778
    case 2:
779
        if (bswap) tcg_out32 (s, STWBRX | RS (data_reg) | RA (0) | RB (r0));
780
        else tcg_out32 (s, STW | RS (data_reg) | RA (r0));
781
        break;
782
    case 3:
783
        if (bswap) {
784
            tcg_out32 (s, STWBRX | RS (data_reg) | RA (0) | RB (r0));
785
            tcg_out32 (s, ADDI | RT (r0) | RA (r0) | 4);
786
            tcg_out_rld (s, RLDICL, 0, data_reg, 32, 0);
787
            tcg_out32 (s, STWBRX | RS (0) | RA (0) | RB (r0));
788
        }
789
        else tcg_out32 (s, STD | RS (data_reg) | RA (r0));
790
        break;
791
    }
792

    
793
#ifdef CONFIG_SOFTMMU
794
    reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr);
795
#endif
796
}
797

    
798
void tcg_target_qemu_prologue (TCGContext *s)
799
{
800
    int i, frame_size;
801
    uint64_t addr;
802

    
803
    frame_size = 0
804
        + 8                     /* back chain */
805
        + 8                     /* CR */
806
        + 8                     /* LR */
807
        + 8                     /* compiler doubleword */
808
        + 8                     /* link editor doubleword */
809
        + 8                     /* TOC save area */
810
        + TCG_STATIC_CALL_ARGS_SIZE
811
        + ARRAY_SIZE (tcg_target_callee_save_regs) * 8
812
        ;
813
    frame_size = (frame_size + 15) & ~15;
814

    
815
    /* First emit adhoc function descriptor */
816
    addr = (uint64_t) s->code_ptr + 24;
817
    tcg_out32 (s, addr >> 32); tcg_out32 (s, addr); /* entry point */
818
    s->code_ptr += 16;          /* skip TOC and environment pointer */
819

    
820
    /* Prologue */
821
    tcg_out32 (s, MFSPR | RT (0) | LR);
822
    tcg_out32 (s, STDU | RS (1) | RA (1) | (-frame_size & 0xffff));
823
    for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i)
824
        tcg_out32 (s, (STD
825
                       | RS (tcg_target_callee_save_regs[i])
826
                       | RA (1)
827
                       | (i * 8 + 48 + TCG_STATIC_CALL_ARGS_SIZE)
828
                       )
829
            );
830
    tcg_out32 (s, STD | RS (0) | RA (1) | (frame_size + 16));
831

    
832
    tcg_out32 (s, MTSPR | RS (3) | CTR);
833
    tcg_out32 (s, BCCTR | BO_ALWAYS);
834

    
835
    /* Epilogue */
836
    tb_ret_addr = s->code_ptr;
837

    
838
    for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i)
839
        tcg_out32 (s, (LD
840
                       | RT (tcg_target_callee_save_regs[i])
841
                       | RA (1)
842
                       | (i * 8 + 48 + TCG_STATIC_CALL_ARGS_SIZE)
843
                       )
844
            );
845
    tcg_out32 (s, LD | RT (0) | RA (1) | (frame_size + 16));
846
    tcg_out32 (s, MTSPR | RS (0) | LR);
847
    tcg_out32 (s, ADDI | RT (1) | RA (1) | frame_size);
848
    tcg_out32 (s, BCLR | BO_ALWAYS);
849
}
850

    
851
static void tcg_out_ld (TCGContext *s, TCGType type, int ret, int arg1,
852
                        tcg_target_long arg2)
853
{
854
    if (type == TCG_TYPE_I32)
855
        tcg_out_ldst (s, ret, arg1, arg2, LWZ, LWZX);
856
    else
857
        tcg_out_ldst (s, ret, arg1, arg2, LD, LDX);
858
}
859

    
860
static void tcg_out_st (TCGContext *s, TCGType type, int arg, int arg1,
861
                        tcg_target_long arg2)
862
{
863
    if (type == TCG_TYPE_I32)
864
        tcg_out_ldst (s, arg, arg1, arg2, STW, STWX);
865
    else
866
        tcg_out_ldst (s, arg, arg1, arg2, STD, STDX);
867
}
868

    
869
static void ppc_addi32 (TCGContext *s, int rt, int ra, tcg_target_long si)
870
{
871
    if (!si && rt == ra)
872
        return;
873

    
874
    if (si == (int16_t) si)
875
        tcg_out32 (s, ADDI | RT (rt) | RA (ra) | (si & 0xffff));
876
    else {
877
        uint16_t h = ((si >> 16) & 0xffff) + ((uint16_t) si >> 15);
878
        tcg_out32 (s, ADDIS | RT (rt) | RA (ra) | h);
879
        tcg_out32 (s, ADDI | RT (rt) | RA (rt) | (si & 0xffff));
880
    }
881
}
882

    
883
static void ppc_addi64 (TCGContext *s, int rt, int ra, tcg_target_long si)
884
{
885
    /* XXX: suboptimal */
886
    if (si == (int16_t) si
887
        || (((uint64_t) si >> 31) == 0) && (si & 0x8000) == 0)
888
        ppc_addi32 (s, rt, ra, si);
889
    else {
890
        tcg_out_movi (s, TCG_TYPE_I64, 0, si);
891
        tcg_out32 (s, ADD | RT (rt) | RA (ra));
892
    }
893
}
894

    
895
static void tcg_out_addi (TCGContext *s, int reg, tcg_target_long val)
896
{
897
    ppc_addi64 (s, reg, reg, val);
898
}
899

    
900
static void tcg_out_cmp (TCGContext *s, int cond, TCGArg arg1, TCGArg arg2,
901
                         int const_arg2, int cr, int arch64)
902
{
903
    int imm;
904
    uint32_t op;
905

    
906
    switch (cond) {
907
    case TCG_COND_EQ:
908
    case TCG_COND_NE:
909
        if (const_arg2) {
910
            if ((int16_t) arg2 == arg2) {
911
                op = CMPI;
912
                imm = 1;
913
                break;
914
            }
915
            else if ((uint16_t) arg2 == arg2) {
916
                op = CMPLI;
917
                imm = 1;
918
                break;
919
            }
920
        }
921
        op = CMPL;
922
        imm = 0;
923
        break;
924

    
925
    case TCG_COND_LT:
926
    case TCG_COND_GE:
927
    case TCG_COND_LE:
928
    case TCG_COND_GT:
929
        if (const_arg2) {
930
            if ((int16_t) arg2 == arg2) {
931
                op = CMPI;
932
                imm = 1;
933
                break;
934
            }
935
        }
936
        op = CMP;
937
        imm = 0;
938
        break;
939

    
940
    case TCG_COND_LTU:
941
    case TCG_COND_GEU:
942
    case TCG_COND_LEU:
943
    case TCG_COND_GTU:
944
        if (const_arg2) {
945
            if ((uint16_t) arg2 == arg2) {
946
                op = CMPLI;
947
                imm = 1;
948
                break;
949
            }
950
        }
951
        op = CMPL;
952
        imm = 0;
953
        break;
954

    
955
    default:
956
        tcg_abort ();
957
    }
958
    op |= BF (cr) | (arch64 << 21);
959

    
960
    if (imm)
961
        tcg_out32 (s, op | RA (arg1) | (arg2 & 0xffff));
962
    else {
963
        if (const_arg2) {
964
            tcg_out_movi (s, TCG_TYPE_I64, 0, arg2);
965
            tcg_out32 (s, op | RA (arg1) | RB (0));
966
        }
967
        else
968
            tcg_out32 (s, op | RA (arg1) | RB (arg2));
969
    }
970

    
971
}
972

    
973
static void tcg_out_bc (TCGContext *s, int bc, int label_index)
974
{
975
    TCGLabel *l = &s->labels[label_index];
976

    
977
    if (l->has_value)
978
        tcg_out32 (s, bc | reloc_pc14_val (s->code_ptr, l->u.value));
979
    else {
980
        uint16_t val = *(uint16_t *) &s->code_ptr[2];
981

    
982
        /* Thanks to Andrzej Zaborowski */
983
        tcg_out32 (s, bc | (val & 0xfffc));
984
        tcg_out_reloc (s, s->code_ptr - 4, R_PPC_REL14, label_index, 0);
985
    }
986
}
987

    
988
static void tcg_out_brcond (TCGContext *s, int cond,
989
                            TCGArg arg1, TCGArg arg2, int const_arg2,
990
                            int label_index, int arch64)
991
{
992
    tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7, arch64);
993
    tcg_out_bc (s, tcg_to_bc[cond], label_index);
994
}
995

    
996
void ppc_tb_set_jmp_target (unsigned long jmp_addr, unsigned long addr)
997
{
998
    TCGContext s;
999
    unsigned long patch_size;
1000

    
1001
    s.code_ptr = (uint8_t *) jmp_addr;
1002
    tcg_out_b (&s, 0, addr);
1003
    patch_size = s.code_ptr - (uint8_t *) jmp_addr;
1004
    flush_icache_range (jmp_addr, jmp_addr + patch_size);
1005
}
1006

    
1007
static void tcg_out_op (TCGContext *s, int opc, const TCGArg *args,
1008
                        const int *const_args)
1009
{
1010
    int c;
1011

    
1012
    switch (opc) {
1013
    case INDEX_op_exit_tb:
1014
        tcg_out_movi (s, TCG_TYPE_I64, TCG_REG_R3, args[0]);
1015
        tcg_out_b (s, 0, (tcg_target_long) tb_ret_addr);
1016
        break;
1017
    case INDEX_op_goto_tb:
1018
        if (s->tb_jmp_offset) {
1019
            /* direct jump method */
1020

    
1021
            s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
1022
            s->code_ptr += 28;
1023
        }
1024
        else {
1025
            tcg_abort ();
1026
        }
1027
        s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
1028
        break;
1029
    case INDEX_op_br:
1030
        {
1031
            TCGLabel *l = &s->labels[args[0]];
1032

    
1033
            if (l->has_value) {
1034
                tcg_out_b (s, 0, l->u.value);
1035
            }
1036
            else {
1037
                uint32_t val = *(uint32_t *) s->code_ptr;
1038

    
1039
                /* Thanks to Andrzej Zaborowski */
1040
                tcg_out32 (s, B | (val & 0x3fffffc));
1041
                tcg_out_reloc (s, s->code_ptr - 4, R_PPC_REL24, args[0], 0);
1042
            }
1043
        }
1044
        break;
1045
    case INDEX_op_call:
1046
        tcg_out_call (s, args[0], const_args[0]);
1047
        break;
1048
    case INDEX_op_jmp:
1049
        if (const_args[0]) {
1050
            tcg_out_b (s, 0, args[0]);
1051
        }
1052
        else {
1053
            tcg_out32 (s, MTSPR | RS (args[0]) | CTR);
1054
            tcg_out32 (s, BCCTR | BO_ALWAYS);
1055
        }
1056
        break;
1057
    case INDEX_op_movi_i32:
1058
        tcg_out_movi (s, TCG_TYPE_I32, args[0], args[1]);
1059
        break;
1060
    case INDEX_op_movi_i64:
1061
        tcg_out_movi (s, TCG_TYPE_I64, args[0], args[1]);
1062
        break;
1063
    case INDEX_op_ld8u_i32:
1064
    case INDEX_op_ld8u_i64:
1065
        tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX);
1066
        break;
1067
    case INDEX_op_ld8s_i32:
1068
    case INDEX_op_ld8s_i64:
1069
        tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX);
1070
        tcg_out32 (s, EXTSB | RS (args[0]) | RA (args[0]));
1071
        break;
1072
    case INDEX_op_ld16u_i32:
1073
    case INDEX_op_ld16u_i64:
1074
        tcg_out_ldst (s, args[0], args[1], args[2], LHZ, LHZX);
1075
        break;
1076
    case INDEX_op_ld16s_i32:
1077
    case INDEX_op_ld16s_i64:
1078
        tcg_out_ldst (s, args[0], args[1], args[2], LHA, LHAX);
1079
        break;
1080
    case INDEX_op_ld_i32:
1081
    case INDEX_op_ld32u_i64:
1082
        tcg_out_ldst (s, args[0], args[1], args[2], LWZ, LWZX);
1083
        break;
1084
    case INDEX_op_ld32s_i64:
1085
        tcg_out_ldst (s, args[0], args[1], args[2], LWA, LWAX);
1086
        break;
1087
    case INDEX_op_ld_i64:
1088
        tcg_out_ldst (s, args[0], args[1], args[2], LD, LDX);
1089
        break;
1090
    case INDEX_op_st8_i32:
1091
    case INDEX_op_st8_i64:
1092
        tcg_out_ldst (s, args[0], args[1], args[2], STB, STBX);
1093
        break;
1094
    case INDEX_op_st16_i32:
1095
    case INDEX_op_st16_i64:
1096
        tcg_out_ldst (s, args[0], args[1], args[2], STH, STHX);
1097
        break;
1098
    case INDEX_op_st_i32:
1099
    case INDEX_op_st32_i64:
1100
        tcg_out_ldst (s, args[0], args[1], args[2], STW, STWX);
1101
        break;
1102
    case INDEX_op_st_i64:
1103
        tcg_out_ldst (s, args[0], args[1], args[2], STD, STDX);
1104
        break;
1105

    
1106
    case INDEX_op_add_i32:
1107
        if (const_args[2])
1108
            ppc_addi32 (s, args[0], args[1], args[2]);
1109
        else
1110
            tcg_out32 (s, ADD | TAB (args[0], args[1], args[2]));
1111
        break;
1112
    case INDEX_op_sub_i32:
1113
        if (const_args[2])
1114
            ppc_addi32 (s, args[0], args[1], -args[2]);
1115
        else
1116
            tcg_out32 (s, SUBF | TAB (args[0], args[2], args[1]));
1117
        break;
1118

    
1119
    case INDEX_op_and_i64:
1120
    case INDEX_op_and_i32:
1121
        if (const_args[2]) {
1122
            if ((args[2] & 0xffff) == args[2])
1123
                tcg_out32 (s, ANDI | RS (args[1]) | RA (args[0]) | args[2]);
1124
            else if ((args[2] & 0xffff0000) == args[2])
1125
                tcg_out32 (s, ANDIS | RS (args[1]) | RA (args[0])
1126
                           | ((args[2] >> 16) & 0xffff));
1127
            else {
1128
                tcg_out_movi (s, (opc == INDEX_op_and_i32
1129
                                  ? TCG_TYPE_I32
1130
                                  : TCG_TYPE_I64),
1131
                              0, args[2]);
1132
                tcg_out32 (s, AND | SAB (args[1], args[0], 0));
1133
            }
1134
        }
1135
        else
1136
            tcg_out32 (s, AND | SAB (args[1], args[0], args[2]));
1137
        break;
1138
    case INDEX_op_or_i64:
1139
    case INDEX_op_or_i32:
1140
        if (const_args[2]) {
1141
            if (args[2] & 0xffff) {
1142
                tcg_out32 (s, ORI | RS (args[1]) | RA (args[0])
1143
                           | (args[2] & 0xffff));
1144
                if (args[2] >> 16)
1145
                    tcg_out32 (s, ORIS | RS (args[0])  | RA (args[0])
1146
                               | ((args[2] >> 16) & 0xffff));
1147
            }
1148
            else {
1149
                tcg_out32 (s, ORIS | RS (args[1])  | RA (args[0])
1150
                           | ((args[2] >> 16) & 0xffff));
1151
            }
1152
        }
1153
        else
1154
            tcg_out32 (s, OR | SAB (args[1], args[0], args[2]));
1155
        break;
1156
    case INDEX_op_xor_i64:
1157
    case INDEX_op_xor_i32:
1158
        if (const_args[2]) {
1159
            if ((args[2] & 0xffff) == args[2])
1160
                tcg_out32 (s, XORI | RS (args[1])  | RA (args[0])
1161
                           | (args[2] & 0xffff));
1162
            else if ((args[2] & 0xffff0000) == args[2])
1163
                tcg_out32 (s, XORIS | RS (args[1])  | RA (args[0])
1164
                           | ((args[2] >> 16) & 0xffff));
1165
            else {
1166
                tcg_out_movi (s, (opc == INDEX_op_and_i32
1167
                                  ? TCG_TYPE_I32
1168
                                  : TCG_TYPE_I64),
1169
                              0, args[2]);
1170
                tcg_out32 (s, XOR | SAB (args[1], args[0], 0));
1171
            }
1172
        }
1173
        else
1174
            tcg_out32 (s, XOR | SAB (args[1], args[0], args[2]));
1175
        break;
1176

    
1177
    case INDEX_op_mul_i32:
1178
        if (const_args[2]) {
1179
            if (args[2] == (int16_t) args[2])
1180
                tcg_out32 (s, MULLI | RT (args[0]) | RA (args[1])
1181
                           | (args[2] & 0xffff));
1182
            else {
1183
                tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]);
1184
                tcg_out32 (s, MULLW | TAB (args[0], args[1], 0));
1185
            }
1186
        }
1187
        else
1188
            tcg_out32 (s, MULLW | TAB (args[0], args[1], args[2]));
1189
        break;
1190

    
1191
    case INDEX_op_div_i32:
1192
        tcg_out32 (s, DIVW | TAB (args[0], args[1], args[2]));
1193
        break;
1194

    
1195
    case INDEX_op_divu_i32:
1196
        tcg_out32 (s, DIVWU | TAB (args[0], args[1], args[2]));
1197
        break;
1198

    
1199
    case INDEX_op_rem_i32:
1200
        tcg_out32 (s, DIVW | TAB (0, args[1], args[2]));
1201
        tcg_out32 (s, MULLW | TAB (0, 0, args[2]));
1202
        tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
1203
        break;
1204

    
1205
    case INDEX_op_remu_i32:
1206
        tcg_out32 (s, DIVWU | TAB (0, args[1], args[2]));
1207
        tcg_out32 (s, MULLW | TAB (0, 0, args[2]));
1208
        tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
1209
        break;
1210

    
1211
    case INDEX_op_shl_i32:
1212
        if (const_args[2]) {
1213
            tcg_out32 (s, (RLWINM
1214
                           | RA (args[0])
1215
                           | RS (args[1])
1216
                           | SH (args[2])
1217
                           | MB (0)
1218
                           | ME (31 - args[2])
1219
                           )
1220
                );
1221
        }
1222
        else
1223
            tcg_out32 (s, SLW | SAB (args[1], args[0], args[2]));
1224
        break;
1225
    case INDEX_op_shr_i32:
1226
        if (const_args[2]) {
1227
            tcg_out32 (s, (RLWINM
1228
                           | RA (args[0])
1229
                           | RS (args[1])
1230
                           | SH (32 - args[2])
1231
                           | MB (args[2])
1232
                           | ME (31)
1233
                           )
1234
                );
1235
        }
1236
        else
1237
            tcg_out32 (s, SRW | SAB (args[1], args[0], args[2]));
1238
        break;
1239
    case INDEX_op_sar_i32:
1240
        if (const_args[2])
1241
            tcg_out32 (s, SRAWI | RS (args[1]) | RA (args[0]) | SH (args[2]));
1242
        else
1243
            tcg_out32 (s, SRAW | SAB (args[1], args[0], args[2]));
1244
        break;
1245

    
1246
    case INDEX_op_brcond_i32:
1247
        tcg_out_brcond (s, args[2], args[0], args[1], const_args[1], args[3], 0);
1248
        break;
1249

    
1250
    case INDEX_op_brcond_i64:
1251
        tcg_out_brcond (s, args[2], args[0], args[1], const_args[1], args[3], 1);
1252
        break;
1253

    
1254
    case INDEX_op_neg_i32:
1255
    case INDEX_op_neg_i64:
1256
        tcg_out32 (s, NEG | RT (args[0]) | RA (args[1]));
1257
        break;
1258

    
1259
    case INDEX_op_add_i64:
1260
        if (const_args[2])
1261
            ppc_addi64 (s, args[0], args[1], args[2]);
1262
        else
1263
            tcg_out32 (s, ADD | TAB (args[0], args[1], args[2]));
1264
        break;
1265
    case INDEX_op_sub_i64:
1266
        if (const_args[2])
1267
            ppc_addi64 (s, args[0], args[1], -args[2]);
1268
        else
1269
            tcg_out32 (s, SUBF | TAB (args[0], args[2], args[1]));
1270
        break;
1271

    
1272
    case INDEX_op_shl_i64:
1273
        if (const_args[2])
1274
            tcg_out_rld (s, RLDICR, args[0], args[1], args[2], 63 - args[2]);
1275
        else
1276
            tcg_out32 (s, SLD | SAB (args[1], args[0], args[2]));
1277
        break;
1278
    case INDEX_op_shr_i64:
1279
        if (const_args[2])
1280
            tcg_out_rld (s, RLDICL, args[0], args[1], 64 - args[2], args[2]);
1281
        else
1282
            tcg_out32 (s, SRD | SAB (args[1], args[0], args[2]));
1283
        break;
1284
    case INDEX_op_sar_i64:
1285
        if (const_args[2]) {
1286
            int sh = SH (args[2] & 0x1f) | (((args[2] >> 5) & 1) << 1);
1287
            tcg_out32 (s, SRADI | RA (args[0]) | RS (args[1]) | sh);
1288
        }
1289
        else
1290
            tcg_out32 (s, SRAD | SAB (args[1], args[0], args[2]));
1291
        break;
1292

    
1293
    case INDEX_op_mul_i64:
1294
        tcg_out32 (s, MULLD | TAB (args[0], args[1], args[2]));
1295
        break;
1296
    case INDEX_op_div_i64:
1297
        tcg_out32 (s, DIVD | TAB (args[0], args[1], args[2]));
1298
        break;
1299
    case INDEX_op_divu_i64:
1300
        tcg_out32 (s, DIVDU | TAB (args[0], args[1], args[2]));
1301
        break;
1302
    case INDEX_op_rem_i64:
1303
        tcg_out32 (s, DIVD | TAB (0, args[1], args[2]));
1304
        tcg_out32 (s, MULLD | TAB (0, 0, args[2]));
1305
        tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
1306
        break;
1307
    case INDEX_op_remu_i64:
1308
        tcg_out32 (s, DIVDU | TAB (0, args[1], args[2]));
1309
        tcg_out32 (s, MULLD | TAB (0, 0, args[2]));
1310
        tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
1311
        break;
1312

    
1313
    case INDEX_op_qemu_ld8u:
1314
        tcg_out_qemu_ld (s, args, 0);
1315
        break;
1316
    case INDEX_op_qemu_ld8s:
1317
        tcg_out_qemu_ld (s, args, 0 | 4);
1318
        break;
1319
    case INDEX_op_qemu_ld16u:
1320
        tcg_out_qemu_ld (s, args, 1);
1321
        break;
1322
    case INDEX_op_qemu_ld16s:
1323
        tcg_out_qemu_ld (s, args, 1 | 4);
1324
        break;
1325
    case INDEX_op_qemu_ld32u:
1326
        tcg_out_qemu_ld (s, args, 2);
1327
        break;
1328
    case INDEX_op_qemu_ld32s:
1329
        tcg_out_qemu_ld (s, args, 2 | 4);
1330
        break;
1331
    case INDEX_op_qemu_ld64:
1332
        tcg_out_qemu_ld (s, args, 3);
1333
        break;
1334
    case INDEX_op_qemu_st8:
1335
        tcg_out_qemu_st (s, args, 0);
1336
        break;
1337
    case INDEX_op_qemu_st16:
1338
        tcg_out_qemu_st (s, args, 1);
1339
        break;
1340
    case INDEX_op_qemu_st32:
1341
        tcg_out_qemu_st (s, args, 2);
1342
        break;
1343
    case INDEX_op_qemu_st64:
1344
        tcg_out_qemu_st (s, args, 3);
1345
        break;
1346

    
1347
    case INDEX_op_ext8s_i32:
1348
    case INDEX_op_ext8s_i64:
1349
        c = EXTSB;
1350
        goto gen_ext;
1351
    case INDEX_op_ext16s_i32:
1352
    case INDEX_op_ext16s_i64:
1353
        c = EXTSH;
1354
        goto gen_ext;
1355
    case INDEX_op_ext32s_i64:
1356
        c = EXTSW;
1357
        goto gen_ext;
1358
    gen_ext:
1359
        tcg_out32 (s, c | RS (args[1]) | RA (args[0]));
1360
        break;
1361

    
1362
    default:
1363
        tcg_dump_ops (s, stderr);
1364
        tcg_abort ();
1365
    }
1366
}
1367

    
1368
static const TCGTargetOpDef ppc_op_defs[] = {
1369
    { INDEX_op_exit_tb, { } },
1370
    { INDEX_op_goto_tb, { } },
1371
    { INDEX_op_call, { "ri" } },
1372
    { INDEX_op_jmp, { "ri" } },
1373
    { INDEX_op_br, { } },
1374

    
1375
    { INDEX_op_mov_i32, { "r", "r" } },
1376
    { INDEX_op_mov_i64, { "r", "r" } },
1377
    { INDEX_op_movi_i32, { "r" } },
1378
    { INDEX_op_movi_i64, { "r" } },
1379

    
1380
    { INDEX_op_ld8u_i32, { "r", "r" } },
1381
    { INDEX_op_ld8s_i32, { "r", "r" } },
1382
    { INDEX_op_ld16u_i32, { "r", "r" } },
1383
    { INDEX_op_ld16s_i32, { "r", "r" } },
1384
    { INDEX_op_ld_i32, { "r", "r" } },
1385
    { INDEX_op_ld_i64, { "r", "r" } },
1386
    { INDEX_op_st8_i32, { "r", "r" } },
1387
    { INDEX_op_st8_i64, { "r", "r" } },
1388
    { INDEX_op_st16_i32, { "r", "r" } },
1389
    { INDEX_op_st16_i64, { "r", "r" } },
1390
    { INDEX_op_st_i32, { "r", "r" } },
1391
    { INDEX_op_st_i64, { "r", "r" } },
1392
    { INDEX_op_st32_i64, { "r", "r" } },
1393

    
1394
    { INDEX_op_ld8u_i64, { "r", "r" } },
1395
    { INDEX_op_ld8s_i64, { "r", "r" } },
1396
    { INDEX_op_ld16u_i64, { "r", "r" } },
1397
    { INDEX_op_ld16s_i64, { "r", "r" } },
1398
    { INDEX_op_ld32u_i64, { "r", "r" } },
1399
    { INDEX_op_ld32s_i64, { "r", "r" } },
1400
    { INDEX_op_ld_i64, { "r", "r" } },
1401

    
1402
    { INDEX_op_add_i32, { "r", "r", "ri" } },
1403
    { INDEX_op_mul_i32, { "r", "r", "ri" } },
1404
    { INDEX_op_div_i32, { "r", "r", "r" } },
1405
    { INDEX_op_divu_i32, { "r", "r", "r" } },
1406
    { INDEX_op_rem_i32, { "r", "r", "r" } },
1407
    { INDEX_op_remu_i32, { "r", "r", "r" } },
1408
    { INDEX_op_sub_i32, { "r", "r", "ri" } },
1409
    { INDEX_op_and_i32, { "r", "r", "ri" } },
1410
    { INDEX_op_or_i32, { "r", "r", "ri" } },
1411
    { INDEX_op_xor_i32, { "r", "r", "ri" } },
1412

    
1413
    { INDEX_op_shl_i32, { "r", "r", "ri" } },
1414
    { INDEX_op_shr_i32, { "r", "r", "ri" } },
1415
    { INDEX_op_sar_i32, { "r", "r", "ri" } },
1416

    
1417
    { INDEX_op_brcond_i32, { "r", "ri" } },
1418
    { INDEX_op_brcond_i64, { "r", "ri" } },
1419

    
1420
    { INDEX_op_neg_i32, { "r", "r" } },
1421

    
1422
    { INDEX_op_add_i64, { "r", "r", "ri" } },
1423
    { INDEX_op_sub_i64, { "r", "r", "ri" } },
1424
    { INDEX_op_and_i64, { "r", "r", "rZ" } },
1425
    { INDEX_op_or_i64, { "r", "r", "rZ" } },
1426
    { INDEX_op_xor_i64, { "r", "r", "rZ" } },
1427

    
1428
    { INDEX_op_shl_i64, { "r", "r", "ri" } },
1429
    { INDEX_op_shr_i64, { "r", "r", "ri" } },
1430
    { INDEX_op_sar_i64, { "r", "r", "ri" } },
1431

    
1432
    { INDEX_op_mul_i64, { "r", "r", "r" } },
1433
    { INDEX_op_div_i64, { "r", "r", "r" } },
1434
    { INDEX_op_divu_i64, { "r", "r", "r" } },
1435
    { INDEX_op_rem_i64, { "r", "r", "r" } },
1436
    { INDEX_op_remu_i64, { "r", "r", "r" } },
1437

    
1438
    { INDEX_op_neg_i64, { "r", "r" } },
1439

    
1440
    { INDEX_op_qemu_ld8u, { "r", "L" } },
1441
    { INDEX_op_qemu_ld8s, { "r", "L" } },
1442
    { INDEX_op_qemu_ld16u, { "r", "L" } },
1443
    { INDEX_op_qemu_ld16s, { "r", "L" } },
1444
    { INDEX_op_qemu_ld32u, { "r", "L" } },
1445
    { INDEX_op_qemu_ld32s, { "r", "L" } },
1446
    { INDEX_op_qemu_ld64, { "r", "L" } },
1447

    
1448
    { INDEX_op_qemu_st8, { "S", "S" } },
1449
    { INDEX_op_qemu_st16, { "S", "S" } },
1450
    { INDEX_op_qemu_st32, { "S", "S" } },
1451
    { INDEX_op_qemu_st64, { "S", "S", "S" } },
1452

    
1453
    { INDEX_op_ext8s_i32, { "r", "r" } },
1454
    { INDEX_op_ext16s_i32, { "r", "r" } },
1455
    { INDEX_op_ext8s_i64, { "r", "r" } },
1456
    { INDEX_op_ext16s_i64, { "r", "r" } },
1457
    { INDEX_op_ext32s_i64, { "r", "r" } },
1458

    
1459
    { -1 },
1460
};
1461

    
1462
void tcg_target_init (TCGContext *s)
1463
{
1464
    tcg_regset_set32 (tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff);
1465
    tcg_regset_set32 (tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffffffff);
1466
    tcg_regset_set32 (tcg_target_call_clobber_regs, 0,
1467
                     (1 << TCG_REG_R0) |
1468
                     (1 << TCG_REG_R3) |
1469
                     (1 << TCG_REG_R4) |
1470
                     (1 << TCG_REG_R5) |
1471
                     (1 << TCG_REG_R6) |
1472
                     (1 << TCG_REG_R7) |
1473
                     (1 << TCG_REG_R8) |
1474
                     (1 << TCG_REG_R9) |
1475
                     (1 << TCG_REG_R10) |
1476
                     (1 << TCG_REG_R11) |
1477
                     (1 << TCG_REG_R12)
1478
        );
1479

    
1480
    tcg_regset_clear (s->reserved_regs);
1481
    tcg_regset_set_reg (s->reserved_regs, TCG_REG_R0);
1482
    tcg_regset_set_reg (s->reserved_regs, TCG_REG_R1);
1483
    tcg_regset_set_reg (s->reserved_regs, TCG_REG_R2);
1484
    tcg_regset_set_reg (s->reserved_regs, TCG_REG_R13);
1485

    
1486
    tcg_add_target_add_op_defs (ppc_op_defs);
1487
}