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810260a8 | 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 | ||
fe6f943f | 25 | #define TCG_CT_CONST_U32 0x100 |
26 | ||
810260a8 | 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 | |
e924bbec | 39 | #define CMP_L 0 |
810260a8 | 40 | #else |
41 | #define LD_ADDR LDU | |
e924bbec | 42 | #define CMP_L (1<<21) |
810260a8 | 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", | |
61 | "r15", | |
62 | "r16", | |
63 | "r17", | |
64 | "r18", | |
65 | "r19", | |
66 | "r20", | |
67 | "r21", | |
68 | "r22", | |
69 | "r23", | |
70 | "r24", | |
71 | "r25", | |
72 | "r26", | |
73 | "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, | |
139 | TCG_REG_R22, | |
140 | TCG_REG_R23, | |
141 | 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); | |
735ee40d | 222 | #ifdef CONFIG_SOFTMMU |
810260a8 | 223 | tcg_regset_reset_reg (ct->u.regs, TCG_REG_R4); |
735ee40d | 224 | #endif |
810260a8 | 225 | break; |
c070355d | 226 | case 'S': /* qemu_st constraint */ |
810260a8 | 227 | ct->ct |= TCG_CT_REG; |
228 | tcg_regset_set32 (ct->u.regs, 0, 0xffffffff); | |
229 | tcg_regset_reset_reg (ct->u.regs, TCG_REG_R3); | |
735ee40d | 230 | #ifdef CONFIG_SOFTMMU |
810260a8 | 231 | tcg_regset_reset_reg (ct->u.regs, TCG_REG_R4); |
232 | tcg_regset_reset_reg (ct->u.regs, TCG_REG_R5); | |
735ee40d | 233 | #endif |
810260a8 | 234 | break; |
fe6f943f | 235 | case 'Z': |
236 | ct->ct |= TCG_CT_CONST_U32; | |
237 | break; | |
810260a8 | 238 | default: |
239 | return -1; | |
240 | } | |
241 | ct_str++; | |
242 | *pct_str = ct_str; | |
243 | return 0; | |
244 | } | |
245 | ||
246 | /* test if a constant matches the constraint */ | |
247 | static int tcg_target_const_match (tcg_target_long val, | |
248 | const TCGArgConstraint *arg_ct) | |
249 | { | |
250 | int ct; | |
251 | ||
252 | ct = arg_ct->ct; | |
253 | if (ct & TCG_CT_CONST) | |
254 | return 1; | |
fe6f943f | 255 | else if ((ct & TCG_CT_CONST_U32) && (val == (uint32_t) val)) |
256 | return 1; | |
810260a8 | 257 | return 0; |
258 | } | |
259 | ||
260 | #define OPCD(opc) ((opc)<<26) | |
261 | #define XO19(opc) (OPCD(19)|((opc)<<1)) | |
262 | #define XO30(opc) (OPCD(30)|((opc)<<2)) | |
263 | #define XO31(opc) (OPCD(31)|((opc)<<1)) | |
264 | #define XO58(opc) (OPCD(58)|(opc)) | |
265 | #define XO62(opc) (OPCD(62)|(opc)) | |
266 | ||
267 | #define B OPCD( 18) | |
268 | #define BC OPCD( 16) | |
269 | #define LBZ OPCD( 34) | |
270 | #define LHZ OPCD( 40) | |
271 | #define LHA OPCD( 42) | |
272 | #define LWZ OPCD( 32) | |
273 | #define STB OPCD( 38) | |
274 | #define STH OPCD( 44) | |
275 | #define STW OPCD( 36) | |
276 | ||
277 | #define STD XO62( 0) | |
278 | #define STDU XO62( 1) | |
279 | #define STDX XO31(149) | |
280 | ||
281 | #define LD XO58( 0) | |
282 | #define LDX XO31( 21) | |
283 | #define LDU XO58( 1) | |
301f6d90 | 284 | #define LWA XO58( 2) |
810260a8 | 285 | #define LWAX XO31(341) |
286 | ||
287 | #define ADDI OPCD( 14) | |
288 | #define ADDIS OPCD( 15) | |
289 | #define ORI OPCD( 24) | |
290 | #define ORIS OPCD( 25) | |
291 | #define XORI OPCD( 26) | |
292 | #define XORIS OPCD( 27) | |
293 | #define ANDI OPCD( 28) | |
294 | #define ANDIS OPCD( 29) | |
295 | #define MULLI OPCD( 7) | |
296 | #define CMPLI OPCD( 10) | |
297 | #define CMPI OPCD( 11) | |
298 | ||
299 | #define LWZU OPCD( 33) | |
300 | #define STWU OPCD( 37) | |
301 | ||
302 | #define RLWINM OPCD( 21) | |
303 | ||
304 | #define RLDICL XO30( 0) | |
305 | #define RLDICR XO30( 1) | |
306 | ||
307 | #define BCLR XO19( 16) | |
308 | #define BCCTR XO19(528) | |
309 | #define CRAND XO19(257) | |
310 | #define CRANDC XO19(129) | |
311 | #define CRNAND XO19(225) | |
312 | #define CROR XO19(449) | |
313 | ||
314 | #define EXTSB XO31(954) | |
315 | #define EXTSH XO31(922) | |
316 | #define EXTSW XO31(986) | |
317 | #define ADD XO31(266) | |
318 | #define ADDE XO31(138) | |
319 | #define ADDC XO31( 10) | |
320 | #define AND XO31( 28) | |
321 | #define SUBF XO31( 40) | |
322 | #define SUBFC XO31( 8) | |
323 | #define SUBFE XO31(136) | |
324 | #define OR XO31(444) | |
325 | #define XOR XO31(316) | |
326 | #define MULLW XO31(235) | |
327 | #define MULHWU XO31( 11) | |
328 | #define DIVW XO31(491) | |
329 | #define DIVWU XO31(459) | |
330 | #define CMP XO31( 0) | |
331 | #define CMPL XO31( 32) | |
332 | #define LHBRX XO31(790) | |
333 | #define LWBRX XO31(534) | |
334 | #define STHBRX XO31(918) | |
335 | #define STWBRX XO31(662) | |
336 | #define MFSPR XO31(339) | |
337 | #define MTSPR XO31(467) | |
338 | #define SRAWI XO31(824) | |
339 | #define NEG XO31(104) | |
340 | ||
341 | #define MULLD XO31(233) | |
342 | #define MULHD XO31( 73) | |
343 | #define MULHDU XO31( 9) | |
344 | #define DIVD XO31(489) | |
345 | #define DIVDU XO31(457) | |
346 | ||
347 | #define LBZX XO31( 87) | |
348 | #define LHZX XO31(276) | |
349 | #define LHAX XO31(343) | |
350 | #define LWZX XO31( 23) | |
351 | #define STBX XO31(215) | |
352 | #define STHX XO31(407) | |
353 | #define STWX XO31(151) | |
354 | ||
355 | #define SPR(a,b) ((((a)<<5)|(b))<<11) | |
356 | #define LR SPR(8, 0) | |
357 | #define CTR SPR(9, 0) | |
358 | ||
359 | #define SLW XO31( 24) | |
360 | #define SRW XO31(536) | |
361 | #define SRAW XO31(792) | |
362 | ||
363 | #define SLD XO31( 27) | |
364 | #define SRD XO31(539) | |
365 | #define SRAD XO31(794) | |
fe6f943f | 366 | #define SRADI XO31(413<<1) |
810260a8 | 367 | |
368 | #define LMW OPCD( 46) | |
369 | #define STMW OPCD( 47) | |
370 | ||
371 | #define TW XO31( 4) | |
372 | #define TRAP (TW | TO (31)) | |
373 | ||
374 | #define RT(r) ((r)<<21) | |
375 | #define RS(r) ((r)<<21) | |
376 | #define RA(r) ((r)<<16) | |
377 | #define RB(r) ((r)<<11) | |
378 | #define TO(t) ((t)<<21) | |
379 | #define SH(s) ((s)<<11) | |
380 | #define MB(b) ((b)<<6) | |
381 | #define ME(e) ((e)<<1) | |
382 | #define BO(o) ((o)<<21) | |
383 | #define MB64(b) ((b)<<5) | |
384 | ||
385 | #define LK 1 | |
386 | ||
387 | #define TAB(t,a,b) (RT(t) | RA(a) | RB(b)) | |
388 | #define SAB(s,a,b) (RS(s) | RA(a) | RB(b)) | |
389 | ||
390 | #define BF(n) ((n)<<23) | |
391 | #define BI(n, c) (((c)+((n)*4))<<16) | |
392 | #define BT(n, c) (((c)+((n)*4))<<21) | |
393 | #define BA(n, c) (((c)+((n)*4))<<16) | |
394 | #define BB(n, c) (((c)+((n)*4))<<11) | |
395 | ||
396 | #define BO_COND_TRUE BO (12) | |
397 | #define BO_COND_FALSE BO ( 4) | |
398 | #define BO_ALWAYS BO (20) | |
399 | ||
400 | enum { | |
401 | CR_LT, | |
402 | CR_GT, | |
403 | CR_EQ, | |
404 | CR_SO | |
405 | }; | |
406 | ||
407 | static const uint32_t tcg_to_bc[10] = { | |
408 | [TCG_COND_EQ] = BC | BI (7, CR_EQ) | BO_COND_TRUE, | |
409 | [TCG_COND_NE] = BC | BI (7, CR_EQ) | BO_COND_FALSE, | |
410 | [TCG_COND_LT] = BC | BI (7, CR_LT) | BO_COND_TRUE, | |
411 | [TCG_COND_GE] = BC | BI (7, CR_LT) | BO_COND_FALSE, | |
412 | [TCG_COND_LE] = BC | BI (7, CR_GT) | BO_COND_FALSE, | |
413 | [TCG_COND_GT] = BC | BI (7, CR_GT) | BO_COND_TRUE, | |
414 | [TCG_COND_LTU] = BC | BI (7, CR_LT) | BO_COND_TRUE, | |
415 | [TCG_COND_GEU] = BC | BI (7, CR_LT) | BO_COND_FALSE, | |
416 | [TCG_COND_LEU] = BC | BI (7, CR_GT) | BO_COND_FALSE, | |
417 | [TCG_COND_GTU] = BC | BI (7, CR_GT) | BO_COND_TRUE, | |
418 | }; | |
419 | ||
420 | static void tcg_out_mov (TCGContext *s, int ret, int arg) | |
421 | { | |
422 | tcg_out32 (s, OR | SAB (arg, ret, arg)); | |
423 | } | |
424 | ||
425 | static void tcg_out_rld (TCGContext *s, int op, int ra, int rs, int sh, int mb) | |
426 | { | |
427 | sh = SH (sh & 0x1f) | (((sh >> 5) & 1) << 1); | |
428 | mb = MB64 ((mb >> 5) | ((mb << 1) & 0x3f)); | |
429 | tcg_out32 (s, op | RA (ra) | RS (rs) | sh | mb); | |
430 | } | |
431 | ||
432 | static void tcg_out_movi32 (TCGContext *s, int ret, int32_t arg) | |
433 | { | |
434 | if (arg == (int16_t) arg) | |
435 | tcg_out32 (s, ADDI | RT (ret) | RA (0) | (arg & 0xffff)); | |
436 | else { | |
437 | tcg_out32 (s, ADDIS | RT (ret) | RA (0) | ((arg >> 16) & 0xffff)); | |
438 | if (arg & 0xffff) | |
439 | tcg_out32 (s, ORI | RS (ret) | RA (ret) | (arg & 0xffff)); | |
440 | } | |
441 | } | |
442 | ||
443 | static void tcg_out_movi (TCGContext *s, TCGType type, | |
444 | int ret, tcg_target_long arg) | |
445 | { | |
446 | int32_t arg32 = arg; | |
447 | ||
448 | if (type == TCG_TYPE_I32 || arg == arg32) { | |
449 | tcg_out_movi32 (s, ret, arg32); | |
450 | } | |
451 | else { | |
452 | if ((uint64_t) arg >> 32) { | |
6fc9dbcc | 453 | uint16_t h16 = arg >> 16; |
454 | uint16_t l16 = arg; | |
455 | ||
95153fde | 456 | tcg_out_movi32 (s, ret, arg >> 32); |
810260a8 | 457 | tcg_out_rld (s, RLDICR, ret, ret, 32, 31); |
6fc9dbcc | 458 | if (h16) tcg_out32 (s, ORIS | RS (ret) | RA (ret) | h16); |
459 | if (l16) tcg_out32 (s, ORI | RS (ret) | RA (ret) | l16); | |
810260a8 | 460 | } |
461 | else { | |
462 | tcg_out_movi32 (s, ret, arg32); | |
6fc9dbcc | 463 | if (arg32 < 0) |
464 | tcg_out_rld (s, RLDICL, ret, ret, 0, 32); | |
810260a8 | 465 | } |
466 | } | |
467 | } | |
468 | ||
469 | static void tcg_out_call (TCGContext *s, tcg_target_long arg, int const_arg) | |
470 | { | |
471 | int reg; | |
472 | ||
473 | if (const_arg) { | |
474 | reg = 2; | |
475 | tcg_out_movi (s, TCG_TYPE_I64, reg, arg); | |
476 | } | |
477 | else reg = arg; | |
478 | ||
479 | tcg_out32 (s, LD | RT (0) | RA (reg)); | |
480 | tcg_out32 (s, MTSPR | RA (0) | CTR); | |
481 | tcg_out32 (s, LD | RT (11) | RA (reg) | 16); | |
482 | tcg_out32 (s, LD | RT (2) | RA (reg) | 8); | |
483 | tcg_out32 (s, BCCTR | BO_ALWAYS | LK); | |
484 | } | |
485 | ||
486 | static void tcg_out_ldst (TCGContext *s, int ret, int addr, | |
487 | int offset, int op1, int op2) | |
488 | { | |
489 | if (offset == (int16_t) offset) | |
490 | tcg_out32 (s, op1 | RT (ret) | RA (addr) | (offset & 0xffff)); | |
491 | else { | |
492 | tcg_out_movi (s, TCG_TYPE_I64, 0, offset); | |
493 | tcg_out32 (s, op2 | RT (ret) | RA (addr) | RB (0)); | |
494 | } | |
495 | } | |
496 | ||
497 | static void tcg_out_b (TCGContext *s, int mask, tcg_target_long target) | |
498 | { | |
499 | tcg_target_long disp; | |
500 | ||
501 | disp = target - (tcg_target_long) s->code_ptr; | |
502 | if ((disp << 38) >> 38 == disp) | |
503 | tcg_out32 (s, B | (disp & 0x3fffffc) | mask); | |
504 | else { | |
505 | tcg_out_movi (s, TCG_TYPE_I64, 0, (tcg_target_long) target); | |
506 | tcg_out32 (s, MTSPR | RS (0) | CTR); | |
507 | tcg_out32 (s, BCCTR | BO_ALWAYS | mask); | |
508 | } | |
509 | } | |
510 | ||
511 | #if defined (CONFIG_SOFTMMU) | |
512 | extern void __ldb_mmu(void); | |
513 | extern void __ldw_mmu(void); | |
514 | extern void __ldl_mmu(void); | |
515 | extern void __ldq_mmu(void); | |
516 | ||
517 | extern void __stb_mmu(void); | |
518 | extern void __stw_mmu(void); | |
519 | extern void __stl_mmu(void); | |
520 | extern void __stq_mmu(void); | |
521 | ||
522 | static void *qemu_ld_helpers[4] = { | |
523 | __ldb_mmu, | |
524 | __ldw_mmu, | |
525 | __ldl_mmu, | |
526 | __ldq_mmu, | |
527 | }; | |
528 | ||
529 | static void *qemu_st_helpers[4] = { | |
530 | __stb_mmu, | |
531 | __stw_mmu, | |
532 | __stl_mmu, | |
533 | __stq_mmu, | |
534 | }; | |
810260a8 | 535 | |
536 | static void tcg_out_tlb_read (TCGContext *s, int r0, int r1, int r2, | |
537 | int addr_reg, int s_bits, int offset) | |
538 | { | |
880e52b8 | 539 | #if TARGET_LONG_BITS == 32 |
810260a8 | 540 | tcg_out_rld (s, RLDICL, addr_reg, addr_reg, 0, 32); |
810260a8 | 541 | |
4a40e231 | 542 | tcg_out32 (s, (RLWINM |
543 | | RA (r0) | |
544 | | RS (addr_reg) | |
545 | | SH (32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS)) | |
546 | | MB (32 - (CPU_TLB_BITS + CPU_TLB_ENTRY_BITS)) | |
547 | | ME (31 - CPU_TLB_ENTRY_BITS) | |
548 | ) | |
549 | ); | |
550 | tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (TCG_AREG0)); | |
551 | tcg_out32 (s, (LWZU | RT (r1) | RA (r0) | offset)); | |
552 | tcg_out32 (s, (RLWINM | |
553 | | RA (r2) | |
554 | | RS (addr_reg) | |
555 | | SH (0) | |
556 | | MB ((32 - s_bits) & 31) | |
557 | | ME (31 - TARGET_PAGE_BITS) | |
558 | ) | |
559 | ); | |
560 | #else | |
810260a8 | 561 | tcg_out_rld (s, RLDICL, r0, addr_reg, |
562 | 64 - TARGET_PAGE_BITS, | |
563 | 64 - CPU_TLB_BITS); | |
564 | tcg_out_rld (s, RLDICR, r0, r0, | |
565 | CPU_TLB_ENTRY_BITS, | |
566 | 63 - CPU_TLB_ENTRY_BITS); | |
567 | ||
568 | tcg_out32 (s, ADD | TAB (r0, r0, TCG_AREG0)); | |
569 | tcg_out32 (s, LD_ADDR | RT (r1) | RA (r0) | offset); | |
570 | ||
4a40e231 | 571 | if (!s_bits) { |
572 | tcg_out_rld (s, RLDICR, r2, addr_reg, 0, 63 - TARGET_PAGE_BITS); | |
573 | } | |
574 | else { | |
575 | tcg_out_rld (s, RLDICL, r2, addr_reg, | |
576 | 64 - TARGET_PAGE_BITS, | |
577 | TARGET_PAGE_BITS - s_bits); | |
578 | tcg_out_rld (s, RLDICL, r2, r2, TARGET_PAGE_BITS, 0); | |
579 | } | |
580 | #endif | |
810260a8 | 581 | } |
a2a546b3 | 582 | #endif |
810260a8 | 583 | |
584 | static void tcg_out_qemu_ld (TCGContext *s, const TCGArg *args, int opc) | |
585 | { | |
109719ec | 586 | int addr_reg, data_reg, r0, r1, mem_index, s_bits, bswap; |
810260a8 | 587 | #ifdef CONFIG_SOFTMMU |
109719ec | 588 | int r2; |
810260a8 | 589 | void *label1_ptr, *label2_ptr; |
590 | #endif | |
591 | ||
592 | data_reg = *args++; | |
593 | addr_reg = *args++; | |
594 | mem_index = *args; | |
595 | s_bits = opc & 3; | |
596 | ||
597 | #ifdef CONFIG_SOFTMMU | |
598 | r0 = 3; | |
599 | r1 = 4; | |
600 | r2 = 0; | |
601 | ||
602 | tcg_out_tlb_read (s, r0, r1, r2, addr_reg, s_bits, | |
603 | offsetof (CPUState, tlb_table[mem_index][0].addr_read)); | |
604 | ||
e924bbec | 605 | tcg_out32 (s, CMP | BF (7) | RA (r2) | RB (r1) | CMP_L); |
810260a8 | 606 | |
607 | label1_ptr = s->code_ptr; | |
608 | #ifdef FAST_PATH | |
609 | tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE); | |
610 | #endif | |
611 | ||
612 | /* slow path */ | |
613 | tcg_out_mov (s, 3, addr_reg); | |
614 | tcg_out_movi (s, TCG_TYPE_I64, 4, mem_index); | |
615 | ||
616 | tcg_out_call (s, (tcg_target_long) qemu_ld_helpers[s_bits], 1); | |
617 | ||
618 | switch (opc) { | |
619 | case 0|4: | |
620 | tcg_out32 (s, EXTSB | RA (data_reg) | RS (3)); | |
621 | break; | |
622 | case 1|4: | |
623 | tcg_out32 (s, EXTSH | RA (data_reg) | RS (3)); | |
624 | break; | |
625 | case 2|4: | |
626 | tcg_out32 (s, EXTSW | RA (data_reg) | RS (3)); | |
627 | break; | |
628 | case 0: | |
629 | case 1: | |
630 | case 2: | |
631 | case 3: | |
632 | if (data_reg != 3) | |
633 | tcg_out_mov (s, data_reg, 3); | |
634 | break; | |
635 | } | |
636 | label2_ptr = s->code_ptr; | |
637 | tcg_out32 (s, B); | |
638 | ||
639 | /* label1: fast path */ | |
640 | #ifdef FAST_PATH | |
641 | reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr); | |
642 | #endif | |
643 | ||
644 | /* r0 now contains &env->tlb_table[mem_index][index].addr_read */ | |
645 | tcg_out32 (s, (LD_ADDEND | |
646 | | RT (r0) | |
647 | | RA (r0) | |
648 | | (offsetof (CPUTLBEntry, addend) | |
649 | - offsetof (CPUTLBEntry, addr_read)) | |
650 | )); | |
651 | /* r0 = env->tlb_table[mem_index][index].addend */ | |
652 | tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg)); | |
653 | /* r0 = env->tlb_table[mem_index][index].addend + addr */ | |
654 | ||
655 | #else /* !CONFIG_SOFTMMU */ | |
0b7c1d89 | 656 | #if TARGET_LONG_BITS == 32 |
657 | tcg_out_rld (s, RLDICL, addr_reg, addr_reg, 0, 32); | |
658 | #endif | |
810260a8 | 659 | r0 = addr_reg; |
735ee40d | 660 | r1 = 3; |
810260a8 | 661 | #endif |
662 | ||
663 | #ifdef TARGET_WORDS_BIGENDIAN | |
664 | bswap = 0; | |
665 | #else | |
666 | bswap = 1; | |
667 | #endif | |
668 | switch (opc) { | |
669 | default: | |
670 | case 0: | |
671 | tcg_out32 (s, LBZ | RT (data_reg) | RA (r0)); | |
672 | break; | |
673 | case 0|4: | |
674 | tcg_out32 (s, LBZ | RT (data_reg) | RA (r0)); | |
675 | tcg_out32 (s, EXTSB | RA (data_reg) | RS (data_reg)); | |
676 | break; | |
677 | case 1: | |
678 | if (bswap) tcg_out32 (s, LHBRX | RT (data_reg) | RB (r0)); | |
679 | else tcg_out32 (s, LHZ | RT (data_reg) | RA (r0)); | |
680 | break; | |
681 | case 1|4: | |
682 | if (bswap) { | |
683 | tcg_out32 (s, LHBRX | RT (data_reg) | RB (r0)); | |
684 | tcg_out32 (s, EXTSH | RA (data_reg) | RS (data_reg)); | |
685 | } | |
686 | else tcg_out32 (s, LHA | RT (data_reg) | RA (r0)); | |
687 | break; | |
688 | case 2: | |
689 | if (bswap) tcg_out32 (s, LWBRX | RT (data_reg) | RB (r0)); | |
690 | else tcg_out32 (s, LWZ | RT (data_reg)| RA (r0)); | |
691 | break; | |
692 | case 2|4: | |
693 | if (bswap) { | |
694 | tcg_out32 (s, LWBRX | RT (data_reg) | RB (r0)); | |
450e62e7 | 695 | tcg_out32 (s, EXTSW | RA (data_reg) | RS (data_reg)); |
810260a8 | 696 | } |
697 | else tcg_out32 (s, LWA | RT (data_reg)| RA (r0)); | |
698 | break; | |
699 | case 3: | |
700 | if (bswap) { | |
109719ec | 701 | tcg_out32 (s, LWBRX | RT (0) | RB (r0)); |
702 | tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4); | |
703 | tcg_out32 (s, LWBRX | RT (data_reg) | RB (r1)); | |
704 | tcg_out_rld (s, RLDICR, data_reg, data_reg, 32, 31); | |
705 | tcg_out32 (s, OR | SAB (0, data_reg, data_reg)); | |
810260a8 | 706 | } |
707 | else tcg_out32 (s, LD | RT (data_reg) | RA (r0)); | |
708 | break; | |
709 | } | |
710 | ||
711 | #ifdef CONFIG_SOFTMMU | |
712 | reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr); | |
713 | #endif | |
714 | } | |
715 | ||
716 | static void tcg_out_qemu_st (TCGContext *s, const TCGArg *args, int opc) | |
717 | { | |
718 | int addr_reg, r0, r1, data_reg, mem_index, bswap; | |
719 | #ifdef CONFIG_SOFTMMU | |
720 | int r2; | |
721 | void *label1_ptr, *label2_ptr; | |
722 | #endif | |
723 | ||
724 | data_reg = *args++; | |
725 | addr_reg = *args++; | |
726 | mem_index = *args; | |
727 | ||
728 | #ifdef CONFIG_SOFTMMU | |
729 | r0 = 3; | |
730 | r1 = 4; | |
731 | r2 = 0; | |
732 | ||
733 | tcg_out_tlb_read (s, r0, r1, r2, addr_reg, opc, | |
734 | offsetof (CPUState, tlb_table[mem_index][0].addr_write)); | |
735 | ||
e924bbec | 736 | tcg_out32 (s, CMP | BF (7) | RA (r2) | RB (r1) | CMP_L); |
810260a8 | 737 | |
738 | label1_ptr = s->code_ptr; | |
739 | #ifdef FAST_PATH | |
740 | tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE); | |
741 | #endif | |
742 | ||
743 | /* slow path */ | |
744 | tcg_out_mov (s, 3, addr_reg); | |
745 | tcg_out_rld (s, RLDICL, 4, data_reg, 0, 64 - (1 << (3 + opc))); | |
746 | tcg_out_movi (s, TCG_TYPE_I64, 5, mem_index); | |
747 | ||
748 | tcg_out_call (s, (tcg_target_long) qemu_st_helpers[opc], 1); | |
749 | ||
750 | label2_ptr = s->code_ptr; | |
751 | tcg_out32 (s, B); | |
752 | ||
753 | /* label1: fast path */ | |
754 | #ifdef FAST_PATH | |
755 | reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr); | |
756 | #endif | |
757 | ||
758 | tcg_out32 (s, (LD_ADDEND | |
759 | | RT (r0) | |
760 | | RA (r0) | |
761 | | (offsetof (CPUTLBEntry, addend) | |
762 | - offsetof (CPUTLBEntry, addr_write)) | |
763 | )); | |
764 | /* r0 = env->tlb_table[mem_index][index].addend */ | |
765 | tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg)); | |
766 | /* r0 = env->tlb_table[mem_index][index].addend + addr */ | |
767 | ||
768 | #else /* !CONFIG_SOFTMMU */ | |
0b7c1d89 | 769 | #if TARGET_LONG_BITS == 32 |
770 | tcg_out_rld (s, RLDICL, addr_reg, addr_reg, 0, 32); | |
771 | #endif | |
735ee40d | 772 | r1 = 3; |
810260a8 | 773 | r0 = addr_reg; |
774 | #endif | |
775 | ||
776 | #ifdef TARGET_WORDS_BIGENDIAN | |
777 | bswap = 0; | |
778 | #else | |
779 | bswap = 1; | |
780 | #endif | |
781 | switch (opc) { | |
782 | case 0: | |
783 | tcg_out32 (s, STB | RS (data_reg) | RA (r0)); | |
784 | break; | |
785 | case 1: | |
786 | if (bswap) tcg_out32 (s, STHBRX | RS (data_reg) | RA (0) | RB (r0)); | |
787 | else tcg_out32 (s, STH | RS (data_reg) | RA (r0)); | |
788 | break; | |
789 | case 2: | |
790 | if (bswap) tcg_out32 (s, STWBRX | RS (data_reg) | RA (0) | RB (r0)); | |
791 | else tcg_out32 (s, STW | RS (data_reg) | RA (r0)); | |
792 | break; | |
793 | case 3: | |
794 | if (bswap) { | |
795 | tcg_out32 (s, STWBRX | RS (data_reg) | RA (0) | RB (r0)); | |
109719ec | 796 | tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4); |
810260a8 | 797 | tcg_out_rld (s, RLDICL, 0, data_reg, 32, 0); |
109719ec | 798 | tcg_out32 (s, STWBRX | RS (0) | RA (0) | RB (r1)); |
810260a8 | 799 | } |
800 | else tcg_out32 (s, STD | RS (data_reg) | RA (r0)); | |
801 | break; | |
802 | } | |
803 | ||
804 | #ifdef CONFIG_SOFTMMU | |
805 | reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr); | |
806 | #endif | |
807 | } | |
808 | ||
809 | void tcg_target_qemu_prologue (TCGContext *s) | |
810 | { | |
811 | int i, frame_size; | |
a69abbe0 | 812 | uint64_t addr; |
810260a8 | 813 | |
814 | frame_size = 0 | |
815 | + 8 /* back chain */ | |
816 | + 8 /* CR */ | |
817 | + 8 /* LR */ | |
818 | + 8 /* compiler doubleword */ | |
819 | + 8 /* link editor doubleword */ | |
820 | + 8 /* TOC save area */ | |
821 | + TCG_STATIC_CALL_ARGS_SIZE | |
822 | + ARRAY_SIZE (tcg_target_callee_save_regs) * 8 | |
823 | ; | |
824 | frame_size = (frame_size + 15) & ~15; | |
825 | ||
a69abbe0 | 826 | /* First emit adhoc function descriptor */ |
827 | addr = (uint64_t) s->code_ptr + 24; | |
828 | tcg_out32 (s, addr >> 32); tcg_out32 (s, addr); /* entry point */ | |
829 | s->code_ptr += 16; /* skip TOC and environment pointer */ | |
830 | ||
831 | /* Prologue */ | |
810260a8 | 832 | tcg_out32 (s, MFSPR | RT (0) | LR); |
833 | tcg_out32 (s, STDU | RS (1) | RA (1) | (-frame_size & 0xffff)); | |
834 | for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i) | |
835 | tcg_out32 (s, (STD | |
836 | | RS (tcg_target_callee_save_regs[i]) | |
837 | | RA (1) | |
838 | | (i * 8 + 48 + TCG_STATIC_CALL_ARGS_SIZE) | |
839 | ) | |
840 | ); | |
e03ae7f9 | 841 | tcg_out32 (s, STD | RS (0) | RA (1) | (frame_size + 16)); |
810260a8 | 842 | |
843 | tcg_out32 (s, MTSPR | RS (3) | CTR); | |
844 | tcg_out32 (s, BCCTR | BO_ALWAYS); | |
a69abbe0 | 845 | |
846 | /* Epilogue */ | |
810260a8 | 847 | tb_ret_addr = s->code_ptr; |
848 | ||
849 | for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i) | |
850 | tcg_out32 (s, (LD | |
851 | | RT (tcg_target_callee_save_regs[i]) | |
852 | | RA (1) | |
853 | | (i * 8 + 48 + TCG_STATIC_CALL_ARGS_SIZE) | |
854 | ) | |
855 | ); | |
e03ae7f9 | 856 | tcg_out32 (s, LD | RT (0) | RA (1) | (frame_size + 16)); |
810260a8 | 857 | tcg_out32 (s, MTSPR | RS (0) | LR); |
858 | tcg_out32 (s, ADDI | RT (1) | RA (1) | frame_size); | |
859 | tcg_out32 (s, BCLR | BO_ALWAYS); | |
860 | } | |
861 | ||
862 | static void tcg_out_ld (TCGContext *s, TCGType type, int ret, int arg1, | |
863 | tcg_target_long arg2) | |
864 | { | |
865 | if (type == TCG_TYPE_I32) | |
866 | tcg_out_ldst (s, ret, arg1, arg2, LWZ, LWZX); | |
867 | else | |
868 | tcg_out_ldst (s, ret, arg1, arg2, LD, LDX); | |
869 | } | |
870 | ||
871 | static void tcg_out_st (TCGContext *s, TCGType type, int arg, int arg1, | |
872 | tcg_target_long arg2) | |
873 | { | |
874 | if (type == TCG_TYPE_I32) | |
875 | tcg_out_ldst (s, arg, arg1, arg2, STW, STWX); | |
876 | else | |
877 | tcg_out_ldst (s, arg, arg1, arg2, STD, STDX); | |
878 | } | |
879 | ||
880 | static void ppc_addi32 (TCGContext *s, int rt, int ra, tcg_target_long si) | |
881 | { | |
882 | if (!si && rt == ra) | |
883 | return; | |
884 | ||
885 | if (si == (int16_t) si) | |
886 | tcg_out32 (s, ADDI | RT (rt) | RA (ra) | (si & 0xffff)); | |
887 | else { | |
888 | uint16_t h = ((si >> 16) & 0xffff) + ((uint16_t) si >> 15); | |
889 | tcg_out32 (s, ADDIS | RT (rt) | RA (ra) | h); | |
890 | tcg_out32 (s, ADDI | RT (rt) | RA (rt) | (si & 0xffff)); | |
891 | } | |
892 | } | |
893 | ||
894 | static void ppc_addi64 (TCGContext *s, int rt, int ra, tcg_target_long si) | |
895 | { | |
fe6f943f | 896 | /* XXX: suboptimal */ |
897 | if (si == (int16_t) si | |
898 | || (((uint64_t) si >> 31) == 0) && (si & 0x8000) == 0) | |
899 | ppc_addi32 (s, rt, ra, si); | |
900 | else { | |
901 | tcg_out_movi (s, TCG_TYPE_I64, 0, si); | |
902 | tcg_out32 (s, ADD | RT (rt) | RA (ra)); | |
903 | } | |
810260a8 | 904 | } |
905 | ||
906 | static void tcg_out_addi (TCGContext *s, int reg, tcg_target_long val) | |
907 | { | |
908 | ppc_addi64 (s, reg, reg, val); | |
909 | } | |
910 | ||
911 | static void tcg_out_cmp (TCGContext *s, int cond, TCGArg arg1, TCGArg arg2, | |
e924bbec | 912 | int const_arg2, int cr, int arch64) |
810260a8 | 913 | { |
914 | int imm; | |
915 | uint32_t op; | |
916 | ||
917 | switch (cond) { | |
918 | case TCG_COND_EQ: | |
919 | case TCG_COND_NE: | |
920 | if (const_arg2) { | |
921 | if ((int16_t) arg2 == arg2) { | |
922 | op = CMPI; | |
923 | imm = 1; | |
924 | break; | |
925 | } | |
926 | else if ((uint16_t) arg2 == arg2) { | |
927 | op = CMPLI; | |
928 | imm = 1; | |
929 | break; | |
930 | } | |
931 | } | |
932 | op = CMPL; | |
933 | imm = 0; | |
934 | break; | |
935 | ||
936 | case TCG_COND_LT: | |
937 | case TCG_COND_GE: | |
938 | case TCG_COND_LE: | |
939 | case TCG_COND_GT: | |
940 | if (const_arg2) { | |
941 | if ((int16_t) arg2 == arg2) { | |
942 | op = CMPI; | |
943 | imm = 1; | |
944 | break; | |
945 | } | |
946 | } | |
947 | op = CMP; | |
948 | imm = 0; | |
949 | break; | |
950 | ||
951 | case TCG_COND_LTU: | |
952 | case TCG_COND_GEU: | |
953 | case TCG_COND_LEU: | |
954 | case TCG_COND_GTU: | |
955 | if (const_arg2) { | |
956 | if ((uint16_t) arg2 == arg2) { | |
957 | op = CMPLI; | |
958 | imm = 1; | |
959 | break; | |
960 | } | |
961 | } | |
962 | op = CMPL; | |
963 | imm = 0; | |
964 | break; | |
965 | ||
966 | default: | |
967 | tcg_abort (); | |
968 | } | |
e924bbec | 969 | op |= BF (cr) | (arch64 << 21); |
810260a8 | 970 | |
971 | if (imm) | |
972 | tcg_out32 (s, op | RA (arg1) | (arg2 & 0xffff)); | |
973 | else { | |
974 | if (const_arg2) { | |
975 | tcg_out_movi (s, TCG_TYPE_I64, 0, arg2); | |
976 | tcg_out32 (s, op | RA (arg1) | RB (0)); | |
977 | } | |
978 | else | |
979 | tcg_out32 (s, op | RA (arg1) | RB (arg2)); | |
980 | } | |
981 | ||
982 | } | |
983 | ||
984 | static void tcg_out_bc (TCGContext *s, int bc, int label_index) | |
985 | { | |
986 | TCGLabel *l = &s->labels[label_index]; | |
987 | ||
988 | if (l->has_value) | |
989 | tcg_out32 (s, bc | reloc_pc14_val (s->code_ptr, l->u.value)); | |
990 | else { | |
991 | uint16_t val = *(uint16_t *) &s->code_ptr[2]; | |
992 | ||
993 | /* Thanks to Andrzej Zaborowski */ | |
994 | tcg_out32 (s, bc | (val & 0xfffc)); | |
995 | tcg_out_reloc (s, s->code_ptr - 4, R_PPC_REL14, label_index, 0); | |
996 | } | |
997 | } | |
998 | ||
999 | static void tcg_out_brcond (TCGContext *s, int cond, | |
1000 | TCGArg arg1, TCGArg arg2, int const_arg2, | |
e924bbec | 1001 | int label_index, int arch64) |
810260a8 | 1002 | { |
e924bbec | 1003 | tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7, arch64); |
810260a8 | 1004 | tcg_out_bc (s, tcg_to_bc[cond], label_index); |
1005 | } | |
1006 | ||
1007 | void ppc_tb_set_jmp_target (unsigned long jmp_addr, unsigned long addr) | |
1008 | { | |
1009 | TCGContext s; | |
1010 | unsigned long patch_size; | |
1011 | ||
1012 | s.code_ptr = (uint8_t *) jmp_addr; | |
1013 | tcg_out_b (&s, 0, addr); | |
1014 | patch_size = s.code_ptr - (uint8_t *) jmp_addr; | |
1015 | flush_icache_range (jmp_addr, jmp_addr + patch_size); | |
1016 | } | |
1017 | ||
1018 | static void tcg_out_op (TCGContext *s, int opc, const TCGArg *args, | |
1019 | const int *const_args) | |
1020 | { | |
e46b9681 | 1021 | int c; |
1022 | ||
810260a8 | 1023 | switch (opc) { |
1024 | case INDEX_op_exit_tb: | |
1025 | tcg_out_movi (s, TCG_TYPE_I64, TCG_REG_R3, args[0]); | |
1026 | tcg_out_b (s, 0, (tcg_target_long) tb_ret_addr); | |
1027 | break; | |
1028 | case INDEX_op_goto_tb: | |
1029 | if (s->tb_jmp_offset) { | |
1030 | /* direct jump method */ | |
1031 | ||
1032 | s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf; | |
5424fd10 | 1033 | s->code_ptr += 28; |
810260a8 | 1034 | } |
1035 | else { | |
1036 | tcg_abort (); | |
1037 | } | |
1038 | s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf; | |
1039 | break; | |
1040 | case INDEX_op_br: | |
1041 | { | |
1042 | TCGLabel *l = &s->labels[args[0]]; | |
1043 | ||
1044 | if (l->has_value) { | |
1045 | tcg_out_b (s, 0, l->u.value); | |
1046 | } | |
1047 | else { | |
1048 | uint32_t val = *(uint32_t *) s->code_ptr; | |
1049 | ||
1050 | /* Thanks to Andrzej Zaborowski */ | |
1051 | tcg_out32 (s, B | (val & 0x3fffffc)); | |
1052 | tcg_out_reloc (s, s->code_ptr - 4, R_PPC_REL24, args[0], 0); | |
1053 | } | |
1054 | } | |
1055 | break; | |
1056 | case INDEX_op_call: | |
1057 | tcg_out_call (s, args[0], const_args[0]); | |
1058 | break; | |
1059 | case INDEX_op_jmp: | |
1060 | if (const_args[0]) { | |
1061 | tcg_out_b (s, 0, args[0]); | |
1062 | } | |
1063 | else { | |
1064 | tcg_out32 (s, MTSPR | RS (args[0]) | CTR); | |
1065 | tcg_out32 (s, BCCTR | BO_ALWAYS); | |
1066 | } | |
1067 | break; | |
1068 | case INDEX_op_movi_i32: | |
1069 | tcg_out_movi (s, TCG_TYPE_I32, args[0], args[1]); | |
1070 | break; | |
1071 | case INDEX_op_movi_i64: | |
1072 | tcg_out_movi (s, TCG_TYPE_I64, args[0], args[1]); | |
1073 | break; | |
1074 | case INDEX_op_ld8u_i32: | |
1075 | case INDEX_op_ld8u_i64: | |
1076 | tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX); | |
1077 | break; | |
1078 | case INDEX_op_ld8s_i32: | |
1079 | case INDEX_op_ld8s_i64: | |
1080 | tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX); | |
1081 | tcg_out32 (s, EXTSB | RS (args[0]) | RA (args[0])); | |
1082 | break; | |
1083 | case INDEX_op_ld16u_i32: | |
1084 | case INDEX_op_ld16u_i64: | |
1085 | tcg_out_ldst (s, args[0], args[1], args[2], LHZ, LHZX); | |
1086 | break; | |
1087 | case INDEX_op_ld16s_i32: | |
1088 | case INDEX_op_ld16s_i64: | |
1089 | tcg_out_ldst (s, args[0], args[1], args[2], LHA, LHAX); | |
1090 | break; | |
1091 | case INDEX_op_ld_i32: | |
1092 | case INDEX_op_ld32u_i64: | |
1093 | tcg_out_ldst (s, args[0], args[1], args[2], LWZ, LWZX); | |
1094 | break; | |
1095 | case INDEX_op_ld32s_i64: | |
1096 | tcg_out_ldst (s, args[0], args[1], args[2], LWA, LWAX); | |
1097 | break; | |
1098 | case INDEX_op_ld_i64: | |
1099 | tcg_out_ldst (s, args[0], args[1], args[2], LD, LDX); | |
1100 | break; | |
1101 | case INDEX_op_st8_i32: | |
1102 | case INDEX_op_st8_i64: | |
1103 | tcg_out_ldst (s, args[0], args[1], args[2], STB, STBX); | |
1104 | break; | |
1105 | case INDEX_op_st16_i32: | |
1106 | case INDEX_op_st16_i64: | |
1107 | tcg_out_ldst (s, args[0], args[1], args[2], STH, STHX); | |
1108 | break; | |
1109 | case INDEX_op_st_i32: | |
1110 | case INDEX_op_st32_i64: | |
1111 | tcg_out_ldst (s, args[0], args[1], args[2], STW, STWX); | |
1112 | break; | |
1113 | case INDEX_op_st_i64: | |
1114 | tcg_out_ldst (s, args[0], args[1], args[2], STD, STDX); | |
1115 | break; | |
1116 | ||
1117 | case INDEX_op_add_i32: | |
1118 | if (const_args[2]) | |
1119 | ppc_addi32 (s, args[0], args[1], args[2]); | |
1120 | else | |
1121 | tcg_out32 (s, ADD | TAB (args[0], args[1], args[2])); | |
1122 | break; | |
1123 | case INDEX_op_sub_i32: | |
1124 | if (const_args[2]) | |
1125 | ppc_addi32 (s, args[0], args[1], -args[2]); | |
1126 | else | |
1127 | tcg_out32 (s, SUBF | TAB (args[0], args[2], args[1])); | |
1128 | break; | |
1129 | ||
fe6f943f | 1130 | case INDEX_op_and_i64: |
810260a8 | 1131 | case INDEX_op_and_i32: |
1132 | if (const_args[2]) { | |
000a2d86 | 1133 | if ((args[2] & 0xffff) == args[2]) |
1134 | tcg_out32 (s, ANDI | RS (args[1]) | RA (args[0]) | args[2]); | |
1135 | else if ((args[2] & 0xffff0000) == args[2]) | |
1136 | tcg_out32 (s, ANDIS | RS (args[1]) | RA (args[0]) | |
1137 | | ((args[2] >> 16) & 0xffff)); | |
810260a8 | 1138 | else { |
fe6f943f | 1139 | tcg_out_movi (s, (opc == INDEX_op_and_i32 |
1140 | ? TCG_TYPE_I32 | |
1141 | : TCG_TYPE_I64), | |
1142 | 0, args[2]); | |
000a2d86 | 1143 | tcg_out32 (s, AND | SAB (args[1], args[0], 0)); |
810260a8 | 1144 | } |
1145 | } | |
1146 | else | |
1147 | tcg_out32 (s, AND | SAB (args[1], args[0], args[2])); | |
1148 | break; | |
fe6f943f | 1149 | case INDEX_op_or_i64: |
810260a8 | 1150 | case INDEX_op_or_i32: |
1151 | if (const_args[2]) { | |
000a2d86 | 1152 | if (args[2] & 0xffff) { |
1153 | tcg_out32 (s, ORI | RS (args[1]) | RA (args[0]) | |
1154 | | (args[2] & 0xffff)); | |
1155 | if (args[2] >> 16) | |
1156 | tcg_out32 (s, ORIS | RS (args[0]) | RA (args[0]) | |
810260a8 | 1157 | | ((args[2] >> 16) & 0xffff)); |
810260a8 | 1158 | } |
1159 | else { | |
000a2d86 | 1160 | tcg_out32 (s, ORIS | RS (args[1]) | RA (args[0]) |
1161 | | ((args[2] >> 16) & 0xffff)); | |
810260a8 | 1162 | } |
1163 | } | |
1164 | else | |
1165 | tcg_out32 (s, OR | SAB (args[1], args[0], args[2])); | |
1166 | break; | |
fe6f943f | 1167 | case INDEX_op_xor_i64: |
810260a8 | 1168 | case INDEX_op_xor_i32: |
1169 | if (const_args[2]) { | |
000a2d86 | 1170 | if ((args[2] & 0xffff) == args[2]) |
1171 | tcg_out32 (s, XORI | RS (args[1]) | RA (args[0]) | |
1172 | | (args[2] & 0xffff)); | |
1173 | else if ((args[2] & 0xffff0000) == args[2]) | |
1174 | tcg_out32 (s, XORIS | RS (args[1]) | RA (args[0]) | |
1175 | | ((args[2] >> 16) & 0xffff)); | |
810260a8 | 1176 | else { |
fe6f943f | 1177 | tcg_out_movi (s, (opc == INDEX_op_and_i32 |
1178 | ? TCG_TYPE_I32 | |
1179 | : TCG_TYPE_I64), | |
1180 | 0, args[2]); | |
000a2d86 | 1181 | tcg_out32 (s, XOR | SAB (args[1], args[0], 0)); |
810260a8 | 1182 | } |
1183 | } | |
1184 | else | |
1185 | tcg_out32 (s, XOR | SAB (args[1], args[0], args[2])); | |
1186 | break; | |
1187 | ||
1188 | case INDEX_op_mul_i32: | |
1189 | if (const_args[2]) { | |
1190 | if (args[2] == (int16_t) args[2]) | |
1191 | tcg_out32 (s, MULLI | RT (args[0]) | RA (args[1]) | |
1192 | | (args[2] & 0xffff)); | |
1193 | else { | |
1194 | tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]); | |
1195 | tcg_out32 (s, MULLW | TAB (args[0], args[1], 0)); | |
1196 | } | |
1197 | } | |
1198 | else | |
1199 | tcg_out32 (s, MULLW | TAB (args[0], args[1], args[2])); | |
1200 | break; | |
1201 | ||
1202 | case INDEX_op_div_i32: | |
1203 | tcg_out32 (s, DIVW | TAB (args[0], args[1], args[2])); | |
1204 | break; | |
1205 | ||
1206 | case INDEX_op_divu_i32: | |
1207 | tcg_out32 (s, DIVWU | TAB (args[0], args[1], args[2])); | |
1208 | break; | |
1209 | ||
1210 | case INDEX_op_rem_i32: | |
1211 | tcg_out32 (s, DIVW | TAB (0, args[1], args[2])); | |
1212 | tcg_out32 (s, MULLW | TAB (0, 0, args[2])); | |
1213 | tcg_out32 (s, SUBF | TAB (args[0], 0, args[1])); | |
1214 | break; | |
1215 | ||
1216 | case INDEX_op_remu_i32: | |
1217 | tcg_out32 (s, DIVWU | TAB (0, args[1], args[2])); | |
1218 | tcg_out32 (s, MULLW | TAB (0, 0, args[2])); | |
1219 | tcg_out32 (s, SUBF | TAB (args[0], 0, args[1])); | |
1220 | break; | |
1221 | ||
1222 | case INDEX_op_shl_i32: | |
1223 | if (const_args[2]) { | |
000a2d86 | 1224 | tcg_out32 (s, (RLWINM |
1225 | | RA (args[0]) | |
1226 | | RS (args[1]) | |
1227 | | SH (args[2]) | |
1228 | | MB (0) | |
1229 | | ME (31 - args[2]) | |
1230 | ) | |
1231 | ); | |
810260a8 | 1232 | } |
1233 | else | |
1234 | tcg_out32 (s, SLW | SAB (args[1], args[0], args[2])); | |
1235 | break; | |
1236 | case INDEX_op_shr_i32: | |
1237 | if (const_args[2]) { | |
000a2d86 | 1238 | tcg_out32 (s, (RLWINM |
1239 | | RA (args[0]) | |
1240 | | RS (args[1]) | |
1241 | | SH (32 - args[2]) | |
1242 | | MB (args[2]) | |
1243 | | ME (31) | |
1244 | ) | |
1245 | ); | |
810260a8 | 1246 | } |
1247 | else | |
1248 | tcg_out32 (s, SRW | SAB (args[1], args[0], args[2])); | |
1249 | break; | |
1250 | case INDEX_op_sar_i32: | |
1251 | if (const_args[2]) | |
1252 | tcg_out32 (s, SRAWI | RS (args[1]) | RA (args[0]) | SH (args[2])); | |
1253 | else | |
1254 | tcg_out32 (s, SRAW | SAB (args[1], args[0], args[2])); | |
1255 | break; | |
1256 | ||
1257 | case INDEX_op_brcond_i32: | |
e924bbec | 1258 | tcg_out_brcond (s, args[2], args[0], args[1], const_args[1], args[3], 0); |
1259 | break; | |
1260 | ||
810260a8 | 1261 | case INDEX_op_brcond_i64: |
e924bbec | 1262 | tcg_out_brcond (s, args[2], args[0], args[1], const_args[1], args[3], 1); |
810260a8 | 1263 | break; |
1264 | ||
1265 | case INDEX_op_neg_i32: | |
810260a8 | 1266 | case INDEX_op_neg_i64: |
1267 | tcg_out32 (s, NEG | RT (args[0]) | RA (args[1])); | |
1268 | break; | |
1269 | ||
1270 | case INDEX_op_add_i64: | |
fe6f943f | 1271 | if (const_args[2]) |
1272 | ppc_addi64 (s, args[0], args[1], args[2]); | |
1273 | else | |
1274 | tcg_out32 (s, ADD | TAB (args[0], args[1], args[2])); | |
810260a8 | 1275 | break; |
1276 | case INDEX_op_sub_i64: | |
fe6f943f | 1277 | if (const_args[2]) |
1278 | ppc_addi64 (s, args[0], args[1], -args[2]); | |
1279 | else | |
1280 | tcg_out32 (s, SUBF | TAB (args[0], args[2], args[1])); | |
810260a8 | 1281 | break; |
1282 | ||
1283 | case INDEX_op_shl_i64: | |
fe6f943f | 1284 | if (const_args[2]) |
1285 | tcg_out_rld (s, RLDICR, args[0], args[1], args[2], 63 - args[2]); | |
1286 | else | |
1287 | tcg_out32 (s, SLD | SAB (args[1], args[0], args[2])); | |
810260a8 | 1288 | break; |
1289 | case INDEX_op_shr_i64: | |
fe6f943f | 1290 | if (const_args[2]) |
1291 | tcg_out_rld (s, RLDICL, args[0], args[1], 64 - args[2], args[2]); | |
1292 | else | |
1293 | tcg_out32 (s, SRD | SAB (args[1], args[0], args[2])); | |
810260a8 | 1294 | break; |
1295 | case INDEX_op_sar_i64: | |
fe6f943f | 1296 | if (const_args[2]) { |
1297 | int sh = SH (args[2] & 0x1f) | (((args[2] >> 5) & 1) << 1); | |
1298 | tcg_out32 (s, SRADI | RA (args[0]) | RS (args[1]) | sh); | |
1299 | } | |
1300 | else | |
1301 | tcg_out32 (s, SRAD | SAB (args[1], args[0], args[2])); | |
810260a8 | 1302 | break; |
1303 | ||
1304 | case INDEX_op_mul_i64: | |
1305 | tcg_out32 (s, MULLD | TAB (args[0], args[1], args[2])); | |
1306 | break; | |
1307 | case INDEX_op_div_i64: | |
1308 | tcg_out32 (s, DIVD | TAB (args[0], args[1], args[2])); | |
1309 | break; | |
1310 | case INDEX_op_divu_i64: | |
1311 | tcg_out32 (s, DIVDU | TAB (args[0], args[1], args[2])); | |
1312 | break; | |
1313 | case INDEX_op_rem_i64: | |
1314 | tcg_out32 (s, DIVD | TAB (0, args[1], args[2])); | |
1315 | tcg_out32 (s, MULLD | TAB (0, 0, args[2])); | |
1316 | tcg_out32 (s, SUBF | TAB (args[0], 0, args[1])); | |
1317 | break; | |
1318 | case INDEX_op_remu_i64: | |
1319 | tcg_out32 (s, DIVDU | TAB (0, args[1], args[2])); | |
1320 | tcg_out32 (s, MULLD | TAB (0, 0, args[2])); | |
1321 | tcg_out32 (s, SUBF | TAB (args[0], 0, args[1])); | |
1322 | break; | |
1323 | ||
1324 | case INDEX_op_qemu_ld8u: | |
1325 | tcg_out_qemu_ld (s, args, 0); | |
1326 | break; | |
1327 | case INDEX_op_qemu_ld8s: | |
1328 | tcg_out_qemu_ld (s, args, 0 | 4); | |
1329 | break; | |
1330 | case INDEX_op_qemu_ld16u: | |
1331 | tcg_out_qemu_ld (s, args, 1); | |
1332 | break; | |
1333 | case INDEX_op_qemu_ld16s: | |
1334 | tcg_out_qemu_ld (s, args, 1 | 4); | |
1335 | break; | |
1336 | case INDEX_op_qemu_ld32u: | |
1337 | tcg_out_qemu_ld (s, args, 2); | |
1338 | break; | |
1339 | case INDEX_op_qemu_ld32s: | |
1340 | tcg_out_qemu_ld (s, args, 2 | 4); | |
1341 | break; | |
1342 | case INDEX_op_qemu_ld64: | |
1343 | tcg_out_qemu_ld (s, args, 3); | |
1344 | break; | |
1345 | case INDEX_op_qemu_st8: | |
1346 | tcg_out_qemu_st (s, args, 0); | |
1347 | break; | |
1348 | case INDEX_op_qemu_st16: | |
1349 | tcg_out_qemu_st (s, args, 1); | |
1350 | break; | |
1351 | case INDEX_op_qemu_st32: | |
1352 | tcg_out_qemu_st (s, args, 2); | |
1353 | break; | |
1354 | case INDEX_op_qemu_st64: | |
1355 | tcg_out_qemu_st (s, args, 3); | |
1356 | break; | |
1357 | ||
e46b9681 | 1358 | case INDEX_op_ext8s_i32: |
1359 | case INDEX_op_ext8s_i64: | |
1360 | c = EXTSB; | |
1361 | goto gen_ext; | |
1362 | case INDEX_op_ext16s_i32: | |
1363 | case INDEX_op_ext16s_i64: | |
1364 | c = EXTSH; | |
1365 | goto gen_ext; | |
1366 | case INDEX_op_ext32s_i64: | |
1367 | c = EXTSW; | |
1368 | goto gen_ext; | |
1369 | gen_ext: | |
1370 | tcg_out32 (s, c | RS (args[1]) | RA (args[0])); | |
1371 | break; | |
1372 | ||
810260a8 | 1373 | default: |
1374 | tcg_dump_ops (s, stderr); | |
1375 | tcg_abort (); | |
1376 | } | |
1377 | } | |
1378 | ||
1379 | static const TCGTargetOpDef ppc_op_defs[] = { | |
1380 | { INDEX_op_exit_tb, { } }, | |
1381 | { INDEX_op_goto_tb, { } }, | |
1382 | { INDEX_op_call, { "ri" } }, | |
1383 | { INDEX_op_jmp, { "ri" } }, | |
1384 | { INDEX_op_br, { } }, | |
1385 | ||
1386 | { INDEX_op_mov_i32, { "r", "r" } }, | |
1387 | { INDEX_op_mov_i64, { "r", "r" } }, | |
1388 | { INDEX_op_movi_i32, { "r" } }, | |
1389 | { INDEX_op_movi_i64, { "r" } }, | |
1390 | ||
1391 | { INDEX_op_ld8u_i32, { "r", "r" } }, | |
1392 | { INDEX_op_ld8s_i32, { "r", "r" } }, | |
1393 | { INDEX_op_ld16u_i32, { "r", "r" } }, | |
1394 | { INDEX_op_ld16s_i32, { "r", "r" } }, | |
1395 | { INDEX_op_ld_i32, { "r", "r" } }, | |
1396 | { INDEX_op_ld_i64, { "r", "r" } }, | |
1397 | { INDEX_op_st8_i32, { "r", "r" } }, | |
1398 | { INDEX_op_st8_i64, { "r", "r" } }, | |
1399 | { INDEX_op_st16_i32, { "r", "r" } }, | |
1400 | { INDEX_op_st16_i64, { "r", "r" } }, | |
1401 | { INDEX_op_st_i32, { "r", "r" } }, | |
1402 | { INDEX_op_st_i64, { "r", "r" } }, | |
1403 | { INDEX_op_st32_i64, { "r", "r" } }, | |
1404 | ||
1405 | { INDEX_op_ld8u_i64, { "r", "r" } }, | |
1406 | { INDEX_op_ld8s_i64, { "r", "r" } }, | |
1407 | { INDEX_op_ld16u_i64, { "r", "r" } }, | |
1408 | { INDEX_op_ld16s_i64, { "r", "r" } }, | |
1409 | { INDEX_op_ld32u_i64, { "r", "r" } }, | |
1410 | { INDEX_op_ld32s_i64, { "r", "r" } }, | |
1411 | { INDEX_op_ld_i64, { "r", "r" } }, | |
1412 | ||
1413 | { INDEX_op_add_i32, { "r", "r", "ri" } }, | |
1414 | { INDEX_op_mul_i32, { "r", "r", "ri" } }, | |
1415 | { INDEX_op_div_i32, { "r", "r", "r" } }, | |
1416 | { INDEX_op_divu_i32, { "r", "r", "r" } }, | |
1417 | { INDEX_op_rem_i32, { "r", "r", "r" } }, | |
1418 | { INDEX_op_remu_i32, { "r", "r", "r" } }, | |
1419 | { INDEX_op_sub_i32, { "r", "r", "ri" } }, | |
1420 | { INDEX_op_and_i32, { "r", "r", "ri" } }, | |
1421 | { INDEX_op_or_i32, { "r", "r", "ri" } }, | |
1422 | { INDEX_op_xor_i32, { "r", "r", "ri" } }, | |
1423 | ||
1424 | { INDEX_op_shl_i32, { "r", "r", "ri" } }, | |
1425 | { INDEX_op_shr_i32, { "r", "r", "ri" } }, | |
1426 | { INDEX_op_sar_i32, { "r", "r", "ri" } }, | |
1427 | ||
1428 | { INDEX_op_brcond_i32, { "r", "ri" } }, | |
1429 | { INDEX_op_brcond_i64, { "r", "ri" } }, | |
1430 | ||
1431 | { INDEX_op_neg_i32, { "r", "r" } }, | |
1432 | ||
fe6f943f | 1433 | { INDEX_op_add_i64, { "r", "r", "ri" } }, |
1434 | { INDEX_op_sub_i64, { "r", "r", "ri" } }, | |
1435 | { INDEX_op_and_i64, { "r", "r", "rZ" } }, | |
1436 | { INDEX_op_or_i64, { "r", "r", "rZ" } }, | |
1437 | { INDEX_op_xor_i64, { "r", "r", "rZ" } }, | |
810260a8 | 1438 | |
fe6f943f | 1439 | { INDEX_op_shl_i64, { "r", "r", "ri" } }, |
1440 | { INDEX_op_shr_i64, { "r", "r", "ri" } }, | |
1441 | { INDEX_op_sar_i64, { "r", "r", "ri" } }, | |
810260a8 | 1442 | |
1d58ee9f | 1443 | { INDEX_op_mul_i64, { "r", "r", "r" } }, |
810260a8 | 1444 | { INDEX_op_div_i64, { "r", "r", "r" } }, |
1445 | { INDEX_op_divu_i64, { "r", "r", "r" } }, | |
1446 | { INDEX_op_rem_i64, { "r", "r", "r" } }, | |
1447 | { INDEX_op_remu_i64, { "r", "r", "r" } }, | |
1448 | ||
1449 | { INDEX_op_neg_i64, { "r", "r" } }, | |
1450 | ||
1451 | { INDEX_op_qemu_ld8u, { "r", "L" } }, | |
1452 | { INDEX_op_qemu_ld8s, { "r", "L" } }, | |
1453 | { INDEX_op_qemu_ld16u, { "r", "L" } }, | |
1454 | { INDEX_op_qemu_ld16s, { "r", "L" } }, | |
1455 | { INDEX_op_qemu_ld32u, { "r", "L" } }, | |
1456 | { INDEX_op_qemu_ld32s, { "r", "L" } }, | |
b01d9fea | 1457 | { INDEX_op_qemu_ld64, { "r", "L" } }, |
810260a8 | 1458 | |
c070355d | 1459 | { INDEX_op_qemu_st8, { "S", "S" } }, |
1460 | { INDEX_op_qemu_st16, { "S", "S" } }, | |
1461 | { INDEX_op_qemu_st32, { "S", "S" } }, | |
1462 | { INDEX_op_qemu_st64, { "S", "S", "S" } }, | |
810260a8 | 1463 | |
e46b9681 | 1464 | { INDEX_op_ext8s_i32, { "r", "r" } }, |
1465 | { INDEX_op_ext16s_i32, { "r", "r" } }, | |
1466 | { INDEX_op_ext8s_i64, { "r", "r" } }, | |
1467 | { INDEX_op_ext16s_i64, { "r", "r" } }, | |
1468 | { INDEX_op_ext32s_i64, { "r", "r" } }, | |
1469 | ||
810260a8 | 1470 | { -1 }, |
1471 | }; | |
1472 | ||
1473 | void tcg_target_init (TCGContext *s) | |
1474 | { | |
1475 | tcg_regset_set32 (tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff); | |
1476 | tcg_regset_set32 (tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffffffff); | |
1477 | tcg_regset_set32 (tcg_target_call_clobber_regs, 0, | |
1478 | (1 << TCG_REG_R0) | | |
1479 | (1 << TCG_REG_R3) | | |
1480 | (1 << TCG_REG_R4) | | |
1481 | (1 << TCG_REG_R5) | | |
1482 | (1 << TCG_REG_R6) | | |
1483 | (1 << TCG_REG_R7) | | |
1484 | (1 << TCG_REG_R8) | | |
1485 | (1 << TCG_REG_R9) | | |
1486 | (1 << TCG_REG_R10) | | |
1487 | (1 << TCG_REG_R11) | | |
1488 | (1 << TCG_REG_R12) | |
1489 | ); | |
1490 | ||
1491 | tcg_regset_clear (s->reserved_regs); | |
1492 | tcg_regset_set_reg (s->reserved_regs, TCG_REG_R0); | |
1493 | tcg_regset_set_reg (s->reserved_regs, TCG_REG_R1); | |
1494 | tcg_regset_set_reg (s->reserved_regs, TCG_REG_R2); | |
1495 | tcg_regset_set_reg (s->reserved_regs, TCG_REG_R13); | |
1496 | ||
1497 | tcg_add_target_add_op_defs (ppc_op_defs); | |
1498 | } |