2 * Tiny Code Generator for QEMU
4 * Copyright (c) 2008 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
26 #include "tcg-pool.inc.c"
28 #if defined _CALL_DARWIN || defined __APPLE__
29 #define TCG_TARGET_CALL_DARWIN
32 # define TCG_TARGET_CALL_ALIGN_ARGS 1
35 /* For some memory operations, we need a scratch that isn't R0. For the AIX
36 calling convention, we can re-use the TOC register since we'll be reloading
37 it at every call. Otherwise R12 will do nicely as neither a call-saved
38 register nor a parameter register. */
40 # define TCG_REG_TMP1 TCG_REG_R2
42 # define TCG_REG_TMP1 TCG_REG_R12
45 #define TCG_REG_TB TCG_REG_R31
46 #define USE_REG_TB (TCG_TARGET_REG_BITS == 64)
48 /* Shorthand for size of a pointer. Avoid promotion to unsigned. */
49 #define SZP ((int)sizeof(void *))
51 /* Shorthand for size of a register. */
52 #define SZR (TCG_TARGET_REG_BITS / 8)
54 #define TCG_CT_CONST_S16 0x100
55 #define TCG_CT_CONST_U16 0x200
56 #define TCG_CT_CONST_S32 0x400
57 #define TCG_CT_CONST_U32 0x800
58 #define TCG_CT_CONST_ZERO 0x1000
59 #define TCG_CT_CONST_MONE 0x2000
60 #define TCG_CT_CONST_WSZ 0x4000
62 static tcg_insn_unit *tb_ret_addr;
67 #define HAVE_ISA_2_06 have_isa_2_06
68 #define HAVE_ISEL have_isa_2_06
70 #ifndef CONFIG_SOFTMMU
71 #define TCG_GUEST_BASE_REG 30
74 #ifdef CONFIG_DEBUG_TCG
75 static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
111 static const int tcg_target_reg_alloc_order[] = {
112 TCG_REG_R14, /* call saved registers */
130 TCG_REG_R12, /* call clobbered, non-arguments */
134 TCG_REG_R10, /* call clobbered, arguments */
144 static const int tcg_target_call_iarg_regs[] = {
155 static const int tcg_target_call_oarg_regs[] = {
160 static const int tcg_target_callee_save_regs[] = {
161 #ifdef TCG_TARGET_CALL_DARWIN
177 TCG_REG_R27, /* currently used for the global env */
184 static inline bool in_range_b(tcg_target_long target)
186 return target == sextract64(target, 0, 26);
189 static uint32_t reloc_pc24_val(tcg_insn_unit *pc, tcg_insn_unit *target)
191 ptrdiff_t disp = tcg_ptr_byte_diff(target, pc);
192 tcg_debug_assert(in_range_b(disp));
193 return disp & 0x3fffffc;
196 static void reloc_pc24(tcg_insn_unit *pc, tcg_insn_unit *target)
198 *pc = (*pc & ~0x3fffffc) | reloc_pc24_val(pc, target);
201 static uint16_t reloc_pc14_val(tcg_insn_unit *pc, tcg_insn_unit *target)
203 ptrdiff_t disp = tcg_ptr_byte_diff(target, pc);
204 tcg_debug_assert(disp == (int16_t) disp);
205 return disp & 0xfffc;
208 static void reloc_pc14(tcg_insn_unit *pc, tcg_insn_unit *target)
210 *pc = (*pc & ~0xfffc) | reloc_pc14_val(pc, target);
213 static inline void tcg_out_b_noaddr(TCGContext *s, int insn)
215 unsigned retrans = *s->code_ptr & 0x3fffffc;
216 tcg_out32(s, insn | retrans);
219 static inline void tcg_out_bc_noaddr(TCGContext *s, int insn)
221 unsigned retrans = *s->code_ptr & 0xfffc;
222 tcg_out32(s, insn | retrans);
225 static void patch_reloc(tcg_insn_unit *code_ptr, int type,
226 intptr_t value, intptr_t addend)
228 tcg_insn_unit *target;
232 target = (tcg_insn_unit *)value;
236 reloc_pc14(code_ptr, target);
239 reloc_pc24(code_ptr, target);
242 assert(value == (int16_t)value);
244 old = deposit32(old, 0, 16, value);
252 /* parse target specific constraints */
253 static const char *target_parse_constraint(TCGArgConstraint *ct,
254 const char *ct_str, TCGType type)
257 case 'A': case 'B': case 'C': case 'D':
258 ct->ct |= TCG_CT_REG;
259 tcg_regset_set_reg(ct->u.regs, 3 + ct_str[0] - 'A');
262 ct->ct |= TCG_CT_REG;
263 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
265 case 'L': /* qemu_ld constraint */
266 ct->ct |= TCG_CT_REG;
267 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
268 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
269 #ifdef CONFIG_SOFTMMU
270 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
271 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5);
274 case 'S': /* qemu_st constraint */
275 ct->ct |= TCG_CT_REG;
276 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
277 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
278 #ifdef CONFIG_SOFTMMU
279 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
280 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5);
281 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R6);
285 ct->ct |= TCG_CT_CONST_S16;
288 ct->ct |= TCG_CT_CONST_U16;
291 ct->ct |= TCG_CT_CONST_MONE;
294 ct->ct |= TCG_CT_CONST_S32;
297 ct->ct |= TCG_CT_CONST_U32;
300 ct->ct |= TCG_CT_CONST_WSZ;
303 ct->ct |= TCG_CT_CONST_ZERO;
311 /* test if a constant matches the constraint */
312 static int tcg_target_const_match(tcg_target_long val, TCGType type,
313 const TCGArgConstraint *arg_ct)
316 if (ct & TCG_CT_CONST) {
320 /* The only 32-bit constraint we use aside from
321 TCG_CT_CONST is TCG_CT_CONST_S16. */
322 if (type == TCG_TYPE_I32) {
326 if ((ct & TCG_CT_CONST_S16) && val == (int16_t)val) {
328 } else if ((ct & TCG_CT_CONST_U16) && val == (uint16_t)val) {
330 } else if ((ct & TCG_CT_CONST_S32) && val == (int32_t)val) {
332 } else if ((ct & TCG_CT_CONST_U32) && val == (uint32_t)val) {
334 } else if ((ct & TCG_CT_CONST_ZERO) && val == 0) {
336 } else if ((ct & TCG_CT_CONST_MONE) && val == -1) {
338 } else if ((ct & TCG_CT_CONST_WSZ)
339 && val == (type == TCG_TYPE_I32 ? 32 : 64)) {
345 #define OPCD(opc) ((opc)<<26)
346 #define XO19(opc) (OPCD(19)|((opc)<<1))
347 #define MD30(opc) (OPCD(30)|((opc)<<2))
348 #define MDS30(opc) (OPCD(30)|((opc)<<1))
349 #define XO31(opc) (OPCD(31)|((opc)<<1))
350 #define XO58(opc) (OPCD(58)|(opc))
351 #define XO62(opc) (OPCD(62)|(opc))
355 #define LBZ OPCD( 34)
356 #define LHZ OPCD( 40)
357 #define LHA OPCD( 42)
358 #define LWZ OPCD( 32)
359 #define STB OPCD( 38)
360 #define STH OPCD( 44)
361 #define STW OPCD( 36)
364 #define STDU XO62( 1)
365 #define STDX XO31(149)
368 #define LDX XO31( 21)
371 #define LWAX XO31(341)
373 #define ADDIC OPCD( 12)
374 #define ADDI OPCD( 14)
375 #define ADDIS OPCD( 15)
376 #define ORI OPCD( 24)
377 #define ORIS OPCD( 25)
378 #define XORI OPCD( 26)
379 #define XORIS OPCD( 27)
380 #define ANDI OPCD( 28)
381 #define ANDIS OPCD( 29)
382 #define MULLI OPCD( 7)
383 #define CMPLI OPCD( 10)
384 #define CMPI OPCD( 11)
385 #define SUBFIC OPCD( 8)
387 #define LWZU OPCD( 33)
388 #define STWU OPCD( 37)
390 #define RLWIMI OPCD( 20)
391 #define RLWINM OPCD( 21)
392 #define RLWNM OPCD( 23)
394 #define RLDICL MD30( 0)
395 #define RLDICR MD30( 1)
396 #define RLDIMI MD30( 3)
397 #define RLDCL MDS30( 8)
399 #define BCLR XO19( 16)
400 #define BCCTR XO19(528)
401 #define CRAND XO19(257)
402 #define CRANDC XO19(129)
403 #define CRNAND XO19(225)
404 #define CROR XO19(449)
405 #define CRNOR XO19( 33)
407 #define EXTSB XO31(954)
408 #define EXTSH XO31(922)
409 #define EXTSW XO31(986)
410 #define ADD XO31(266)
411 #define ADDE XO31(138)
412 #define ADDME XO31(234)
413 #define ADDZE XO31(202)
414 #define ADDC XO31( 10)
415 #define AND XO31( 28)
416 #define SUBF XO31( 40)
417 #define SUBFC XO31( 8)
418 #define SUBFE XO31(136)
419 #define SUBFME XO31(232)
420 #define SUBFZE XO31(200)
422 #define XOR XO31(316)
423 #define MULLW XO31(235)
424 #define MULHW XO31( 75)
425 #define MULHWU XO31( 11)
426 #define DIVW XO31(491)
427 #define DIVWU XO31(459)
429 #define CMPL XO31( 32)
430 #define LHBRX XO31(790)
431 #define LWBRX XO31(534)
432 #define LDBRX XO31(532)
433 #define STHBRX XO31(918)
434 #define STWBRX XO31(662)
435 #define STDBRX XO31(660)
436 #define MFSPR XO31(339)
437 #define MTSPR XO31(467)
438 #define SRAWI XO31(824)
439 #define NEG XO31(104)
440 #define MFCR XO31( 19)
441 #define MFOCRF (MFCR | (1u << 20))
442 #define NOR XO31(124)
443 #define CNTLZW XO31( 26)
444 #define CNTLZD XO31( 58)
445 #define CNTTZW XO31(538)
446 #define CNTTZD XO31(570)
447 #define CNTPOPW XO31(378)
448 #define CNTPOPD XO31(506)
449 #define ANDC XO31( 60)
450 #define ORC XO31(412)
451 #define EQV XO31(284)
452 #define NAND XO31(476)
453 #define ISEL XO31( 15)
455 #define MULLD XO31(233)
456 #define MULHD XO31( 73)
457 #define MULHDU XO31( 9)
458 #define DIVD XO31(489)
459 #define DIVDU XO31(457)
461 #define LBZX XO31( 87)
462 #define LHZX XO31(279)
463 #define LHAX XO31(343)
464 #define LWZX XO31( 23)
465 #define STBX XO31(215)
466 #define STHX XO31(407)
467 #define STWX XO31(151)
469 #define EIEIO XO31(854)
470 #define HWSYNC XO31(598)
471 #define LWSYNC (HWSYNC | (1u << 21))
473 #define SPR(a, b) ((((a)<<5)|(b))<<11)
475 #define CTR SPR(9, 0)
477 #define SLW XO31( 24)
478 #define SRW XO31(536)
479 #define SRAW XO31(792)
481 #define SLD XO31( 27)
482 #define SRD XO31(539)
483 #define SRAD XO31(794)
484 #define SRADI XO31(413<<1)
487 #define TRAP (TW | TO(31))
489 #define NOP ORI /* ori 0,0,0 */
491 #define RT(r) ((r)<<21)
492 #define RS(r) ((r)<<21)
493 #define RA(r) ((r)<<16)
494 #define RB(r) ((r)<<11)
495 #define TO(t) ((t)<<21)
496 #define SH(s) ((s)<<11)
497 #define MB(b) ((b)<<6)
498 #define ME(e) ((e)<<1)
499 #define BO(o) ((o)<<21)
500 #define MB64(b) ((b)<<5)
501 #define FXM(b) (1 << (19 - (b)))
505 #define TAB(t, a, b) (RT(t) | RA(a) | RB(b))
506 #define SAB(s, a, b) (RS(s) | RA(a) | RB(b))
507 #define TAI(s, a, i) (RT(s) | RA(a) | ((i) & 0xffff))
508 #define SAI(s, a, i) (RS(s) | RA(a) | ((i) & 0xffff))
510 #define BF(n) ((n)<<23)
511 #define BI(n, c) (((c)+((n)*4))<<16)
512 #define BT(n, c) (((c)+((n)*4))<<21)
513 #define BA(n, c) (((c)+((n)*4))<<16)
514 #define BB(n, c) (((c)+((n)*4))<<11)
515 #define BC_(n, c) (((c)+((n)*4))<<6)
517 #define BO_COND_TRUE BO(12)
518 #define BO_COND_FALSE BO( 4)
519 #define BO_ALWAYS BO(20)
528 static const uint32_t tcg_to_bc[] = {
529 [TCG_COND_EQ] = BC | BI(7, CR_EQ) | BO_COND_TRUE,
530 [TCG_COND_NE] = BC | BI(7, CR_EQ) | BO_COND_FALSE,
531 [TCG_COND_LT] = BC | BI(7, CR_LT) | BO_COND_TRUE,
532 [TCG_COND_GE] = BC | BI(7, CR_LT) | BO_COND_FALSE,
533 [TCG_COND_LE] = BC | BI(7, CR_GT) | BO_COND_FALSE,
534 [TCG_COND_GT] = BC | BI(7, CR_GT) | BO_COND_TRUE,
535 [TCG_COND_LTU] = BC | BI(7, CR_LT) | BO_COND_TRUE,
536 [TCG_COND_GEU] = BC | BI(7, CR_LT) | BO_COND_FALSE,
537 [TCG_COND_LEU] = BC | BI(7, CR_GT) | BO_COND_FALSE,
538 [TCG_COND_GTU] = BC | BI(7, CR_GT) | BO_COND_TRUE,
541 /* The low bit here is set if the RA and RB fields must be inverted. */
542 static const uint32_t tcg_to_isel[] = {
543 [TCG_COND_EQ] = ISEL | BC_(7, CR_EQ),
544 [TCG_COND_NE] = ISEL | BC_(7, CR_EQ) | 1,
545 [TCG_COND_LT] = ISEL | BC_(7, CR_LT),
546 [TCG_COND_GE] = ISEL | BC_(7, CR_LT) | 1,
547 [TCG_COND_LE] = ISEL | BC_(7, CR_GT) | 1,
548 [TCG_COND_GT] = ISEL | BC_(7, CR_GT),
549 [TCG_COND_LTU] = ISEL | BC_(7, CR_LT),
550 [TCG_COND_GEU] = ISEL | BC_(7, CR_LT) | 1,
551 [TCG_COND_LEU] = ISEL | BC_(7, CR_GT) | 1,
552 [TCG_COND_GTU] = ISEL | BC_(7, CR_GT),
555 static void tcg_out_mem_long(TCGContext *s, int opi, int opx, TCGReg rt,
556 TCGReg base, tcg_target_long offset);
558 static void tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg)
560 tcg_debug_assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32);
562 tcg_out32(s, OR | SAB(arg, ret, arg));
566 static inline void tcg_out_rld(TCGContext *s, int op, TCGReg ra, TCGReg rs,
569 tcg_debug_assert(TCG_TARGET_REG_BITS == 64);
570 sh = SH(sh & 0x1f) | (((sh >> 5) & 1) << 1);
571 mb = MB64((mb >> 5) | ((mb << 1) & 0x3f));
572 tcg_out32(s, op | RA(ra) | RS(rs) | sh | mb);
575 static inline void tcg_out_rlw(TCGContext *s, int op, TCGReg ra, TCGReg rs,
576 int sh, int mb, int me)
578 tcg_out32(s, op | RA(ra) | RS(rs) | SH(sh) | MB(mb) | ME(me));
581 static inline void tcg_out_ext32u(TCGContext *s, TCGReg dst, TCGReg src)
583 tcg_out_rld(s, RLDICL, dst, src, 0, 32);
586 static inline void tcg_out_shli32(TCGContext *s, TCGReg dst, TCGReg src, int c)
588 tcg_out_rlw(s, RLWINM, dst, src, c, 0, 31 - c);
591 static inline void tcg_out_shli64(TCGContext *s, TCGReg dst, TCGReg src, int c)
593 tcg_out_rld(s, RLDICR, dst, src, c, 63 - c);
596 static inline void tcg_out_shri32(TCGContext *s, TCGReg dst, TCGReg src, int c)
598 tcg_out_rlw(s, RLWINM, dst, src, 32 - c, c, 31);
601 static inline void tcg_out_shri64(TCGContext *s, TCGReg dst, TCGReg src, int c)
603 tcg_out_rld(s, RLDICL, dst, src, 64 - c, c);
606 /* Emit a move into ret of arg, if it can be done in one insn. */
607 static bool tcg_out_movi_one(TCGContext *s, TCGReg ret, tcg_target_long arg)
609 if (arg == (int16_t)arg) {
610 tcg_out32(s, ADDI | TAI(ret, 0, arg));
613 if (arg == (int32_t)arg && (arg & 0xffff) == 0) {
614 tcg_out32(s, ADDIS | TAI(ret, 0, arg >> 16));
620 static void tcg_out_movi_int(TCGContext *s, TCGType type, TCGReg ret,
621 tcg_target_long arg, bool in_prologue)
627 tcg_debug_assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32);
629 if (TCG_TARGET_REG_BITS == 64 && type == TCG_TYPE_I32) {
633 /* Load 16-bit immediates with one insn. */
634 if (tcg_out_movi_one(s, ret, arg)) {
638 /* Load addresses within the TB with one insn. */
639 tb_diff = arg - (intptr_t)s->code_gen_ptr;
640 if (!in_prologue && USE_REG_TB && tb_diff == (int16_t)tb_diff) {
641 tcg_out32(s, ADDI | TAI(ret, TCG_REG_TB, tb_diff));
645 /* Load 32-bit immediates with two insns. Note that we've already
646 eliminated bare ADDIS, so we know both insns are required. */
647 if (TCG_TARGET_REG_BITS == 32 || arg == (int32_t)arg) {
648 tcg_out32(s, ADDIS | TAI(ret, 0, arg >> 16));
649 tcg_out32(s, ORI | SAI(ret, ret, arg));
652 if (arg == (uint32_t)arg && !(arg & 0x8000)) {
653 tcg_out32(s, ADDI | TAI(ret, 0, arg));
654 tcg_out32(s, ORIS | SAI(ret, ret, arg >> 16));
658 /* Load masked 16-bit value. */
659 if (arg > 0 && (arg & 0x8000)) {
661 if ((tmp & (tmp + 1)) == 0) {
662 int mb = clz64(tmp + 1) + 1;
663 tcg_out32(s, ADDI | TAI(ret, 0, arg));
664 tcg_out_rld(s, RLDICL, ret, ret, 0, mb);
669 /* Load common masks with 2 insns. */
672 if (tmp == (int16_t)tmp) {
673 tcg_out32(s, ADDI | TAI(ret, 0, tmp));
674 tcg_out_shli64(s, ret, ret, shift);
678 if (tcg_out_movi_one(s, ret, arg << shift)) {
679 tcg_out_shri64(s, ret, ret, shift);
683 /* Load addresses within 2GB of TB with 2 (or rarely 3) insns. */
684 if (!in_prologue && USE_REG_TB && tb_diff == (int32_t)tb_diff) {
685 tcg_out_mem_long(s, ADDI, ADD, ret, TCG_REG_TB, tb_diff);
689 /* Use the constant pool, if possible. */
690 if (!in_prologue && USE_REG_TB) {
691 new_pool_label(s, arg, R_PPC_ADDR16, s->code_ptr,
692 -(intptr_t)s->code_gen_ptr);
693 tcg_out32(s, LD | TAI(ret, TCG_REG_TB, 0));
697 tmp = arg >> 31 >> 1;
698 tcg_out_movi(s, TCG_TYPE_I32, ret, tmp);
700 tcg_out_shli64(s, ret, ret, 32);
702 if (arg & 0xffff0000) {
703 tcg_out32(s, ORIS | SAI(ret, ret, arg >> 16));
706 tcg_out32(s, ORI | SAI(ret, ret, arg));
710 static inline void tcg_out_movi(TCGContext *s, TCGType type, TCGReg ret,
713 tcg_out_movi_int(s, type, ret, arg, false);
716 static bool mask_operand(uint32_t c, int *mb, int *me)
720 /* Accept a bit pattern like:
724 Keep track of the transitions. */
725 if (c == 0 || c == -1) {
731 if (test & (test - 1)) {
736 *mb = test ? clz32(test & -test) + 1 : 0;
740 static bool mask64_operand(uint64_t c, int *mb, int *me)
749 /* Accept 1..10..0. */
755 /* Accept 0..01..1. */
756 if (lsb == 1 && (c & (c + 1)) == 0) {
757 *mb = clz64(c + 1) + 1;
764 static void tcg_out_andi32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c)
768 if (mask_operand(c, &mb, &me)) {
769 tcg_out_rlw(s, RLWINM, dst, src, 0, mb, me);
770 } else if ((c & 0xffff) == c) {
771 tcg_out32(s, ANDI | SAI(src, dst, c));
773 } else if ((c & 0xffff0000) == c) {
774 tcg_out32(s, ANDIS | SAI(src, dst, c >> 16));
777 tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R0, c);
778 tcg_out32(s, AND | SAB(src, dst, TCG_REG_R0));
782 static void tcg_out_andi64(TCGContext *s, TCGReg dst, TCGReg src, uint64_t c)
786 tcg_debug_assert(TCG_TARGET_REG_BITS == 64);
787 if (mask64_operand(c, &mb, &me)) {
789 tcg_out_rld(s, RLDICR, dst, src, 0, me);
791 tcg_out_rld(s, RLDICL, dst, src, 0, mb);
793 } else if ((c & 0xffff) == c) {
794 tcg_out32(s, ANDI | SAI(src, dst, c));
796 } else if ((c & 0xffff0000) == c) {
797 tcg_out32(s, ANDIS | SAI(src, dst, c >> 16));
800 tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_R0, c);
801 tcg_out32(s, AND | SAB(src, dst, TCG_REG_R0));
805 static void tcg_out_zori32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c,
806 int op_lo, int op_hi)
809 tcg_out32(s, op_hi | SAI(src, dst, c >> 16));
813 tcg_out32(s, op_lo | SAI(src, dst, c));
818 static void tcg_out_ori32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c)
820 tcg_out_zori32(s, dst, src, c, ORI, ORIS);
823 static void tcg_out_xori32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c)
825 tcg_out_zori32(s, dst, src, c, XORI, XORIS);
828 static void tcg_out_b(TCGContext *s, int mask, tcg_insn_unit *target)
830 ptrdiff_t disp = tcg_pcrel_diff(s, target);
831 if (in_range_b(disp)) {
832 tcg_out32(s, B | (disp & 0x3fffffc) | mask);
834 tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R0, (uintptr_t)target);
835 tcg_out32(s, MTSPR | RS(TCG_REG_R0) | CTR);
836 tcg_out32(s, BCCTR | BO_ALWAYS | mask);
840 static void tcg_out_mem_long(TCGContext *s, int opi, int opx, TCGReg rt,
841 TCGReg base, tcg_target_long offset)
843 tcg_target_long orig = offset, l0, l1, extra = 0, align = 0;
844 bool is_store = false;
845 TCGReg rs = TCG_REG_TMP1;
852 if (rt != TCG_REG_R0) {
860 case STB: case STH: case STW:
865 /* For unaligned, or very large offsets, use the indexed form. */
866 if (offset & align || offset != (int32_t)offset) {
870 tcg_debug_assert(!is_store || rs != rt);
871 tcg_out_movi(s, TCG_TYPE_PTR, rs, orig);
872 tcg_out32(s, opx | TAB(rt, base, rs));
876 l0 = (int16_t)offset;
877 offset = (offset - l0) >> 16;
878 l1 = (int16_t)offset;
880 if (l1 < 0 && orig >= 0) {
882 l1 = (int16_t)(offset - 0x4000);
885 tcg_out32(s, ADDIS | TAI(rs, base, l1));
889 tcg_out32(s, ADDIS | TAI(rs, base, extra));
892 if (opi != ADDI || base != rt || l0 != 0) {
893 tcg_out32(s, opi | TAI(rt, base, l0));
897 static inline void tcg_out_ld(TCGContext *s, TCGType type, TCGReg ret,
898 TCGReg arg1, intptr_t arg2)
902 tcg_debug_assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32);
903 if (type == TCG_TYPE_I32) {
904 opi = LWZ, opx = LWZX;
908 tcg_out_mem_long(s, opi, opx, ret, arg1, arg2);
911 static inline void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg,
912 TCGReg arg1, intptr_t arg2)
916 tcg_debug_assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32);
917 if (type == TCG_TYPE_I32) {
918 opi = STW, opx = STWX;
920 opi = STD, opx = STDX;
922 tcg_out_mem_long(s, opi, opx, arg, arg1, arg2);
925 static inline bool tcg_out_sti(TCGContext *s, TCGType type, TCGArg val,
926 TCGReg base, intptr_t ofs)
931 static void tcg_out_cmp(TCGContext *s, int cond, TCGArg arg1, TCGArg arg2,
932 int const_arg2, int cr, TCGType type)
937 tcg_debug_assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32);
939 /* Simplify the comparisons below wrt CMPI. */
940 if (type == TCG_TYPE_I32) {
941 arg2 = (int32_t)arg2;
948 if ((int16_t) arg2 == arg2) {
952 } else if ((uint16_t) arg2 == arg2) {
967 if ((int16_t) arg2 == arg2) {
982 if ((uint16_t) arg2 == arg2) {
995 op |= BF(cr) | ((type == TCG_TYPE_I64) << 21);
998 tcg_out32(s, op | RA(arg1) | (arg2 & 0xffff));
1001 tcg_out_movi(s, type, TCG_REG_R0, arg2);
1004 tcg_out32(s, op | RA(arg1) | RB(arg2));
1008 static void tcg_out_setcond_eq0(TCGContext *s, TCGType type,
1009 TCGReg dst, TCGReg src)
1011 if (type == TCG_TYPE_I32) {
1012 tcg_out32(s, CNTLZW | RS(src) | RA(dst));
1013 tcg_out_shri32(s, dst, dst, 5);
1015 tcg_out32(s, CNTLZD | RS(src) | RA(dst));
1016 tcg_out_shri64(s, dst, dst, 6);
1020 static void tcg_out_setcond_ne0(TCGContext *s, TCGReg dst, TCGReg src)
1022 /* X != 0 implies X + -1 generates a carry. Extra addition
1023 trickery means: R = X-1 + ~X + C = X-1 + (-X+1) + C = C. */
1025 tcg_out32(s, ADDIC | TAI(dst, src, -1));
1026 tcg_out32(s, SUBFE | TAB(dst, dst, src));
1028 tcg_out32(s, ADDIC | TAI(TCG_REG_R0, src, -1));
1029 tcg_out32(s, SUBFE | TAB(dst, TCG_REG_R0, src));
1033 static TCGReg tcg_gen_setcond_xor(TCGContext *s, TCGReg arg1, TCGArg arg2,
1037 if ((uint32_t)arg2 == arg2) {
1038 tcg_out_xori32(s, TCG_REG_R0, arg1, arg2);
1040 tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_R0, arg2);
1041 tcg_out32(s, XOR | SAB(arg1, TCG_REG_R0, TCG_REG_R0));
1044 tcg_out32(s, XOR | SAB(arg1, TCG_REG_R0, arg2));
1049 static void tcg_out_setcond(TCGContext *s, TCGType type, TCGCond cond,
1050 TCGArg arg0, TCGArg arg1, TCGArg arg2,
1055 tcg_debug_assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32);
1057 /* Ignore high bits of a potential constant arg2. */
1058 if (type == TCG_TYPE_I32) {
1059 arg2 = (uint32_t)arg2;
1062 /* Handle common and trivial cases before handling anything else. */
1066 tcg_out_setcond_eq0(s, type, arg0, arg1);
1069 if (TCG_TARGET_REG_BITS == 64 && type == TCG_TYPE_I32) {
1070 tcg_out_ext32u(s, TCG_REG_R0, arg1);
1073 tcg_out_setcond_ne0(s, arg0, arg1);
1076 tcg_out32(s, NOR | SAB(arg1, arg0, arg1));
1080 /* Extract the sign bit. */
1081 if (type == TCG_TYPE_I32) {
1082 tcg_out_shri32(s, arg0, arg1, 31);
1084 tcg_out_shri64(s, arg0, arg1, 63);
1092 /* If we have ISEL, we can implement everything with 3 or 4 insns.
1093 All other cases below are also at least 3 insns, so speed up the
1094 code generator by not considering them and always using ISEL. */
1098 tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type);
1100 isel = tcg_to_isel[cond];
1102 tcg_out_movi(s, type, arg0, 1);
1104 /* arg0 = (bc ? 0 : 1) */
1105 tab = TAB(arg0, 0, arg0);
1108 /* arg0 = (bc ? 1 : 0) */
1109 tcg_out_movi(s, type, TCG_REG_R0, 0);
1110 tab = TAB(arg0, arg0, TCG_REG_R0);
1112 tcg_out32(s, isel | tab);
1118 arg1 = tcg_gen_setcond_xor(s, arg1, arg2, const_arg2);
1119 tcg_out_setcond_eq0(s, type, arg0, arg1);
1123 arg1 = tcg_gen_setcond_xor(s, arg1, arg2, const_arg2);
1124 /* Discard the high bits only once, rather than both inputs. */
1125 if (TCG_TARGET_REG_BITS == 64 && type == TCG_TYPE_I32) {
1126 tcg_out_ext32u(s, TCG_REG_R0, arg1);
1129 tcg_out_setcond_ne0(s, arg0, arg1);
1147 crop = CRNOR | BT(7, CR_EQ) | BA(7, CR_LT) | BB(7, CR_LT);
1153 crop = CRNOR | BT(7, CR_EQ) | BA(7, CR_GT) | BB(7, CR_GT);
1155 tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type);
1159 tcg_out32(s, MFOCRF | RT(TCG_REG_R0) | FXM(7));
1160 tcg_out_rlw(s, RLWINM, arg0, TCG_REG_R0, sh, 31, 31);
1168 static void tcg_out_bc(TCGContext *s, int bc, TCGLabel *l)
1171 tcg_out32(s, bc | reloc_pc14_val(s->code_ptr, l->u.value_ptr));
1173 tcg_out_reloc(s, s->code_ptr, R_PPC_REL14, l, 0);
1174 tcg_out_bc_noaddr(s, bc);
1178 static void tcg_out_brcond(TCGContext *s, TCGCond cond,
1179 TCGArg arg1, TCGArg arg2, int const_arg2,
1180 TCGLabel *l, TCGType type)
1182 tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type);
1183 tcg_out_bc(s, tcg_to_bc[cond], l);
1186 static void tcg_out_movcond(TCGContext *s, TCGType type, TCGCond cond,
1187 TCGArg dest, TCGArg c1, TCGArg c2, TCGArg v1,
1188 TCGArg v2, bool const_c2)
1190 /* If for some reason both inputs are zero, don't produce bad code. */
1191 if (v1 == 0 && v2 == 0) {
1192 tcg_out_movi(s, type, dest, 0);
1196 tcg_out_cmp(s, cond, c1, c2, const_c2, 7, type);
1199 int isel = tcg_to_isel[cond];
1201 /* Swap the V operands if the operation indicates inversion. */
1208 /* V1 == 0 is handled by isel; V2 == 0 must be handled by hand. */
1210 tcg_out_movi(s, type, TCG_REG_R0, 0);
1212 tcg_out32(s, isel | TAB(dest, v1, v2));
1215 cond = tcg_invert_cond(cond);
1217 } else if (dest != v1) {
1219 tcg_out_movi(s, type, dest, 0);
1221 tcg_out_mov(s, type, dest, v1);
1224 /* Branch forward over one insn */
1225 tcg_out32(s, tcg_to_bc[cond] | 8);
1227 tcg_out_movi(s, type, dest, 0);
1229 tcg_out_mov(s, type, dest, v2);
1234 static void tcg_out_cntxz(TCGContext *s, TCGType type, uint32_t opc,
1235 TCGArg a0, TCGArg a1, TCGArg a2, bool const_a2)
1237 if (const_a2 && a2 == (type == TCG_TYPE_I32 ? 32 : 64)) {
1238 tcg_out32(s, opc | RA(a0) | RS(a1));
1240 tcg_out_cmp(s, TCG_COND_EQ, a1, 0, 1, 7, type);
1241 /* Note that the only other valid constant for a2 is 0. */
1243 tcg_out32(s, opc | RA(TCG_REG_R0) | RS(a1));
1244 tcg_out32(s, tcg_to_isel[TCG_COND_EQ] | TAB(a0, a2, TCG_REG_R0));
1245 } else if (!const_a2 && a0 == a2) {
1246 tcg_out32(s, tcg_to_bc[TCG_COND_EQ] | 8);
1247 tcg_out32(s, opc | RA(a0) | RS(a1));
1249 tcg_out32(s, opc | RA(a0) | RS(a1));
1250 tcg_out32(s, tcg_to_bc[TCG_COND_NE] | 8);
1252 tcg_out_movi(s, type, a0, 0);
1254 tcg_out_mov(s, type, a0, a2);
1260 static void tcg_out_cmp2(TCGContext *s, const TCGArg *args,
1261 const int *const_args)
1263 static const struct { uint8_t bit1, bit2; } bits[] = {
1264 [TCG_COND_LT ] = { CR_LT, CR_LT },
1265 [TCG_COND_LE ] = { CR_LT, CR_GT },
1266 [TCG_COND_GT ] = { CR_GT, CR_GT },
1267 [TCG_COND_GE ] = { CR_GT, CR_LT },
1268 [TCG_COND_LTU] = { CR_LT, CR_LT },
1269 [TCG_COND_LEU] = { CR_LT, CR_GT },
1270 [TCG_COND_GTU] = { CR_GT, CR_GT },
1271 [TCG_COND_GEU] = { CR_GT, CR_LT },
1274 TCGCond cond = args[4], cond2;
1275 TCGArg al, ah, bl, bh;
1276 int blconst, bhconst;
1283 blconst = const_args[2];
1284 bhconst = const_args[3];
1293 tcg_out_cmp(s, cond, al, bl, blconst, 6, TCG_TYPE_I32);
1294 tcg_out_cmp(s, cond, ah, bh, bhconst, 7, TCG_TYPE_I32);
1295 tcg_out32(s, op | BT(7, CR_EQ) | BA(6, CR_EQ) | BB(7, CR_EQ));
1306 bit1 = bits[cond].bit1;
1307 bit2 = bits[cond].bit2;
1308 op = (bit1 != bit2 ? CRANDC : CRAND);
1309 cond2 = tcg_unsigned_cond(cond);
1311 tcg_out_cmp(s, cond, ah, bh, bhconst, 6, TCG_TYPE_I32);
1312 tcg_out_cmp(s, cond2, al, bl, blconst, 7, TCG_TYPE_I32);
1313 tcg_out32(s, op | BT(7, CR_EQ) | BA(6, CR_EQ) | BB(7, bit2));
1314 tcg_out32(s, CROR | BT(7, CR_EQ) | BA(6, bit1) | BB(7, CR_EQ));
1322 static void tcg_out_setcond2(TCGContext *s, const TCGArg *args,
1323 const int *const_args)
1325 tcg_out_cmp2(s, args + 1, const_args + 1);
1326 tcg_out32(s, MFOCRF | RT(TCG_REG_R0) | FXM(7));
1327 tcg_out_rlw(s, RLWINM, args[0], TCG_REG_R0, 31, 31, 31);
1330 static void tcg_out_brcond2 (TCGContext *s, const TCGArg *args,
1331 const int *const_args)
1333 tcg_out_cmp2(s, args, const_args);
1334 tcg_out_bc(s, BC | BI(7, CR_EQ) | BO_COND_TRUE, arg_label(args[5]));
1337 static void tcg_out_mb(TCGContext *s, TCGArg a0)
1339 uint32_t insn = HWSYNC;
1341 if (a0 == TCG_MO_LD_LD) {
1343 } else if (a0 == TCG_MO_ST_ST) {
1349 void tb_target_set_jmp_target(uintptr_t tc_ptr, uintptr_t jmp_addr,
1352 if (TCG_TARGET_REG_BITS == 64) {
1353 tcg_insn_unit i1, i2;
1354 intptr_t tb_diff = addr - tc_ptr;
1355 intptr_t br_diff = addr - (jmp_addr + 4);
1358 /* This does not exercise the range of the branch, but we do
1359 still need to be able to load the new value of TCG_REG_TB.
1360 But this does still happen quite often. */
1361 if (tb_diff == (int16_t)tb_diff) {
1362 i1 = ADDI | TAI(TCG_REG_TB, TCG_REG_TB, tb_diff);
1363 i2 = B | (br_diff & 0x3fffffc);
1365 intptr_t lo = (int16_t)tb_diff;
1366 intptr_t hi = (int32_t)(tb_diff - lo);
1367 assert(tb_diff == hi + lo);
1368 i1 = ADDIS | TAI(TCG_REG_TB, TCG_REG_TB, hi >> 16);
1369 i2 = ADDI | TAI(TCG_REG_TB, TCG_REG_TB, lo);
1371 #ifdef HOST_WORDS_BIGENDIAN
1372 pair = (uint64_t)i1 << 32 | i2;
1374 pair = (uint64_t)i2 << 32 | i1;
1377 /* As per the enclosing if, this is ppc64. Avoid the _Static_assert
1378 within atomic_set that would fail to build a ppc32 host. */
1379 atomic_set__nocheck((uint64_t *)jmp_addr, pair);
1380 flush_icache_range(jmp_addr, jmp_addr + 8);
1382 intptr_t diff = addr - jmp_addr;
1383 tcg_debug_assert(in_range_b(diff));
1384 atomic_set((uint32_t *)jmp_addr, B | (diff & 0x3fffffc));
1385 flush_icache_range(jmp_addr, jmp_addr + 4);
1389 static void tcg_out_call(TCGContext *s, tcg_insn_unit *target)
1392 /* Look through the descriptor. If the branch is in range, and we
1393 don't have to spend too much effort on building the toc. */
1394 void *tgt = ((void **)target)[0];
1395 uintptr_t toc = ((uintptr_t *)target)[1];
1396 intptr_t diff = tcg_pcrel_diff(s, tgt);
1398 if (in_range_b(diff) && toc == (uint32_t)toc) {
1399 tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP1, toc);
1400 tcg_out_b(s, LK, tgt);
1402 /* Fold the low bits of the constant into the addresses below. */
1403 intptr_t arg = (intptr_t)target;
1404 int ofs = (int16_t)arg;
1406 if (ofs + 8 < 0x8000) {
1411 tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP1, arg);
1412 tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_TMP1, ofs);
1413 tcg_out32(s, MTSPR | RA(TCG_REG_R0) | CTR);
1414 tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R2, TCG_REG_TMP1, ofs + SZP);
1415 tcg_out32(s, BCCTR | BO_ALWAYS | LK);
1417 #elif defined(_CALL_ELF) && _CALL_ELF == 2
1420 /* In the ELFv2 ABI, we have to set up r12 to contain the destination
1421 address, which the callee uses to compute its TOC address. */
1422 /* FIXME: when the branch is in range, we could avoid r12 load if we
1423 knew that the destination uses the same TOC, and what its local
1424 entry point offset is. */
1425 tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R12, (intptr_t)target);
1427 diff = tcg_pcrel_diff(s, target);
1428 if (in_range_b(diff)) {
1429 tcg_out_b(s, LK, target);
1431 tcg_out32(s, MTSPR | RS(TCG_REG_R12) | CTR);
1432 tcg_out32(s, BCCTR | BO_ALWAYS | LK);
1435 tcg_out_b(s, LK, target);
1439 static const uint32_t qemu_ldx_opc[16] = {
1446 [MO_BSWAP | MO_UB] = LBZX,
1447 [MO_BSWAP | MO_UW] = LHBRX,
1448 [MO_BSWAP | MO_UL] = LWBRX,
1449 [MO_BSWAP | MO_Q] = LDBRX,
1452 static const uint32_t qemu_stx_opc[16] = {
1457 [MO_BSWAP | MO_UB] = STBX,
1458 [MO_BSWAP | MO_UW] = STHBRX,
1459 [MO_BSWAP | MO_UL] = STWBRX,
1460 [MO_BSWAP | MO_Q] = STDBRX,
1463 static const uint32_t qemu_exts_opc[4] = {
1464 EXTSB, EXTSH, EXTSW, 0
1467 #if defined (CONFIG_SOFTMMU)
1468 #include "tcg-ldst.inc.c"
1470 /* helper signature: helper_ld_mmu(CPUState *env, target_ulong addr,
1471 * int mmu_idx, uintptr_t ra)
1473 static void * const qemu_ld_helpers[16] = {
1474 [MO_UB] = helper_ret_ldub_mmu,
1475 [MO_LEUW] = helper_le_lduw_mmu,
1476 [MO_LEUL] = helper_le_ldul_mmu,
1477 [MO_LEQ] = helper_le_ldq_mmu,
1478 [MO_BEUW] = helper_be_lduw_mmu,
1479 [MO_BEUL] = helper_be_ldul_mmu,
1480 [MO_BEQ] = helper_be_ldq_mmu,
1483 /* helper signature: helper_st_mmu(CPUState *env, target_ulong addr,
1484 * uintxx_t val, int mmu_idx, uintptr_t ra)
1486 static void * const qemu_st_helpers[16] = {
1487 [MO_UB] = helper_ret_stb_mmu,
1488 [MO_LEUW] = helper_le_stw_mmu,
1489 [MO_LEUL] = helper_le_stl_mmu,
1490 [MO_LEQ] = helper_le_stq_mmu,
1491 [MO_BEUW] = helper_be_stw_mmu,
1492 [MO_BEUL] = helper_be_stl_mmu,
1493 [MO_BEQ] = helper_be_stq_mmu,
1496 /* Perform the TLB load and compare. Places the result of the comparison
1497 in CR7, loads the addend of the TLB into R3, and returns the register
1498 containing the guest address (zero-extended into R4). Clobbers R0 and R2. */
1500 static TCGReg tcg_out_tlb_read(TCGContext *s, TCGMemOp opc,
1501 TCGReg addrlo, TCGReg addrhi,
1502 int mem_index, bool is_read)
1506 ? offsetof(CPUArchState, tlb_table[mem_index][0].addr_read)
1507 : offsetof(CPUArchState, tlb_table[mem_index][0].addr_write));
1508 int add_off = offsetof(CPUArchState, tlb_table[mem_index][0].addend);
1509 TCGReg base = TCG_AREG0;
1510 unsigned s_bits = opc & MO_SIZE;
1511 unsigned a_bits = get_alignment_bits(opc);
1513 /* Extract the page index, shifted into place for tlb index. */
1514 if (TCG_TARGET_REG_BITS == 64) {
1515 if (TARGET_LONG_BITS == 32) {
1516 /* Zero-extend the address into a place helpful for further use. */
1517 tcg_out_ext32u(s, TCG_REG_R4, addrlo);
1518 addrlo = TCG_REG_R4;
1520 tcg_out_rld(s, RLDICL, TCG_REG_R3, addrlo,
1521 64 - TARGET_PAGE_BITS, 64 - CPU_TLB_BITS);
1525 /* Compensate for very large offsets. */
1526 if (add_off >= 0x8000) {
1527 /* Most target env are smaller than 32k; none are larger than 64k.
1528 Simplify the logic here merely to offset by 0x7ff0, giving us a
1529 range just shy of 64k. Check this assumption. */
1530 QEMU_BUILD_BUG_ON(offsetof(CPUArchState,
1531 tlb_table[NB_MMU_MODES - 1][1])
1533 tcg_out32(s, ADDI | TAI(TCG_REG_TMP1, base, 0x7ff0));
1534 base = TCG_REG_TMP1;
1539 /* Extraction and shifting, part 2. */
1540 if (TCG_TARGET_REG_BITS == 32 || TARGET_LONG_BITS == 32) {
1541 tcg_out_rlw(s, RLWINM, TCG_REG_R3, addrlo,
1542 32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS),
1543 32 - (CPU_TLB_BITS + CPU_TLB_ENTRY_BITS),
1544 31 - CPU_TLB_ENTRY_BITS);
1546 tcg_out_shli64(s, TCG_REG_R3, TCG_REG_R3, CPU_TLB_ENTRY_BITS);
1549 tcg_out32(s, ADD | TAB(TCG_REG_R3, TCG_REG_R3, base));
1551 /* Load the tlb comparator. */
1552 if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) {
1553 tcg_out_ld(s, TCG_TYPE_I32, TCG_REG_R4, TCG_REG_R3, cmp_off);
1554 tcg_out_ld(s, TCG_TYPE_I32, TCG_REG_TMP1, TCG_REG_R3, cmp_off + 4);
1556 tcg_out_ld(s, TCG_TYPE_TL, TCG_REG_TMP1, TCG_REG_R3, cmp_off);
1559 /* Load the TLB addend for use on the fast path. Do this asap
1560 to minimize any load use delay. */
1561 tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R3, TCG_REG_R3, add_off);
1563 /* Clear the non-page, non-alignment bits from the address */
1564 if (TCG_TARGET_REG_BITS == 32) {
1565 /* We don't support unaligned accesses on 32-bits.
1566 * Preserve the bottom bits and thus trigger a comparison
1567 * failure on unaligned accesses.
1569 if (a_bits < s_bits) {
1572 tcg_out_rlw(s, RLWINM, TCG_REG_R0, addrlo, 0,
1573 (32 - a_bits) & 31, 31 - TARGET_PAGE_BITS);
1577 /* If the access is unaligned, we need to make sure we fail if we
1578 * cross a page boundary. The trick is to add the access size-1
1579 * to the address before masking the low bits. That will make the
1580 * address overflow to the next page if we cross a page boundary,
1581 * which will then force a mismatch of the TLB compare.
1583 if (a_bits < s_bits) {
1584 unsigned a_mask = (1 << a_bits) - 1;
1585 unsigned s_mask = (1 << s_bits) - 1;
1586 tcg_out32(s, ADDI | TAI(TCG_REG_R0, t, s_mask - a_mask));
1590 /* Mask the address for the requested alignment. */
1591 if (TARGET_LONG_BITS == 32) {
1592 tcg_out_rlw(s, RLWINM, TCG_REG_R0, t, 0,
1593 (32 - a_bits) & 31, 31 - TARGET_PAGE_BITS);
1594 } else if (a_bits == 0) {
1595 tcg_out_rld(s, RLDICR, TCG_REG_R0, t, 0, 63 - TARGET_PAGE_BITS);
1597 tcg_out_rld(s, RLDICL, TCG_REG_R0, t,
1598 64 - TARGET_PAGE_BITS, TARGET_PAGE_BITS - a_bits);
1599 tcg_out_rld(s, RLDICL, TCG_REG_R0, TCG_REG_R0, TARGET_PAGE_BITS, 0);
1603 if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) {
1604 tcg_out_cmp(s, TCG_COND_EQ, TCG_REG_R0, TCG_REG_TMP1,
1605 0, 7, TCG_TYPE_I32);
1606 tcg_out_cmp(s, TCG_COND_EQ, addrhi, TCG_REG_R4, 0, 6, TCG_TYPE_I32);
1607 tcg_out32(s, CRAND | BT(7, CR_EQ) | BA(6, CR_EQ) | BB(7, CR_EQ));
1609 tcg_out_cmp(s, TCG_COND_EQ, TCG_REG_R0, TCG_REG_TMP1,
1616 /* Record the context of a call to the out of line helper code for the slow
1617 path for a load or store, so that we can later generate the correct
1619 static void add_qemu_ldst_label(TCGContext *s, bool is_ld, TCGMemOpIdx oi,
1620 TCGReg datalo_reg, TCGReg datahi_reg,
1621 TCGReg addrlo_reg, TCGReg addrhi_reg,
1622 tcg_insn_unit *raddr, tcg_insn_unit *lptr)
1624 TCGLabelQemuLdst *label = new_ldst_label(s);
1626 label->is_ld = is_ld;
1628 label->datalo_reg = datalo_reg;
1629 label->datahi_reg = datahi_reg;
1630 label->addrlo_reg = addrlo_reg;
1631 label->addrhi_reg = addrhi_reg;
1632 label->raddr = raddr;
1633 label->label_ptr[0] = lptr;
1636 static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *lb)
1638 TCGMemOpIdx oi = lb->oi;
1639 TCGMemOp opc = get_memop(oi);
1640 TCGReg hi, lo, arg = TCG_REG_R3;
1642 reloc_pc14(lb->label_ptr[0], s->code_ptr);
1644 tcg_out_mov(s, TCG_TYPE_PTR, arg++, TCG_AREG0);
1646 lo = lb->addrlo_reg;
1647 hi = lb->addrhi_reg;
1648 if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) {
1649 #ifdef TCG_TARGET_CALL_ALIGN_ARGS
1652 tcg_out_mov(s, TCG_TYPE_I32, arg++, hi);
1653 tcg_out_mov(s, TCG_TYPE_I32, arg++, lo);
1655 /* If the address needed to be zero-extended, we'll have already
1656 placed it in R4. The only remaining case is 64-bit guest. */
1657 tcg_out_mov(s, TCG_TYPE_TL, arg++, lo);
1660 tcg_out_movi(s, TCG_TYPE_I32, arg++, oi);
1661 tcg_out32(s, MFSPR | RT(arg) | LR);
1663 tcg_out_call(s, qemu_ld_helpers[opc & (MO_BSWAP | MO_SIZE)]);
1665 lo = lb->datalo_reg;
1666 hi = lb->datahi_reg;
1667 if (TCG_TARGET_REG_BITS == 32 && (opc & MO_SIZE) == MO_64) {
1668 tcg_out_mov(s, TCG_TYPE_I32, lo, TCG_REG_R4);
1669 tcg_out_mov(s, TCG_TYPE_I32, hi, TCG_REG_R3);
1670 } else if (opc & MO_SIGN) {
1671 uint32_t insn = qemu_exts_opc[opc & MO_SIZE];
1672 tcg_out32(s, insn | RA(lo) | RS(TCG_REG_R3));
1674 tcg_out_mov(s, TCG_TYPE_REG, lo, TCG_REG_R3);
1677 tcg_out_b(s, 0, lb->raddr);
1680 static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *lb)
1682 TCGMemOpIdx oi = lb->oi;
1683 TCGMemOp opc = get_memop(oi);
1684 TCGMemOp s_bits = opc & MO_SIZE;
1685 TCGReg hi, lo, arg = TCG_REG_R3;
1687 reloc_pc14(lb->label_ptr[0], s->code_ptr);
1689 tcg_out_mov(s, TCG_TYPE_PTR, arg++, TCG_AREG0);
1691 lo = lb->addrlo_reg;
1692 hi = lb->addrhi_reg;
1693 if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) {
1694 #ifdef TCG_TARGET_CALL_ALIGN_ARGS
1697 tcg_out_mov(s, TCG_TYPE_I32, arg++, hi);
1698 tcg_out_mov(s, TCG_TYPE_I32, arg++, lo);
1700 /* If the address needed to be zero-extended, we'll have already
1701 placed it in R4. The only remaining case is 64-bit guest. */
1702 tcg_out_mov(s, TCG_TYPE_TL, arg++, lo);
1705 lo = lb->datalo_reg;
1706 hi = lb->datahi_reg;
1707 if (TCG_TARGET_REG_BITS == 32) {
1710 #ifdef TCG_TARGET_CALL_ALIGN_ARGS
1713 tcg_out_mov(s, TCG_TYPE_I32, arg++, hi);
1716 tcg_out_mov(s, TCG_TYPE_I32, arg++, lo);
1719 tcg_out_rlw(s, RLWINM, arg++, lo, 0, 32 - (8 << s_bits), 31);
1723 if (s_bits == MO_64) {
1724 tcg_out_mov(s, TCG_TYPE_I64, arg++, lo);
1726 tcg_out_rld(s, RLDICL, arg++, lo, 0, 64 - (8 << s_bits));
1730 tcg_out_movi(s, TCG_TYPE_I32, arg++, oi);
1731 tcg_out32(s, MFSPR | RT(arg) | LR);
1733 tcg_out_call(s, qemu_st_helpers[opc & (MO_BSWAP | MO_SIZE)]);
1735 tcg_out_b(s, 0, lb->raddr);
1737 #endif /* SOFTMMU */
1739 static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is_64)
1741 TCGReg datalo, datahi, addrlo, rbase;
1742 TCGReg addrhi __attribute__((unused));
1744 TCGMemOp opc, s_bits;
1745 #ifdef CONFIG_SOFTMMU
1747 tcg_insn_unit *label_ptr;
1751 datahi = (TCG_TARGET_REG_BITS == 32 && is_64 ? *args++ : 0);
1753 addrhi = (TCG_TARGET_REG_BITS < TARGET_LONG_BITS ? *args++ : 0);
1755 opc = get_memop(oi);
1756 s_bits = opc & MO_SIZE;
1758 #ifdef CONFIG_SOFTMMU
1759 mem_index = get_mmuidx(oi);
1760 addrlo = tcg_out_tlb_read(s, opc, addrlo, addrhi, mem_index, true);
1762 /* Load a pointer into the current opcode w/conditional branch-link. */
1763 label_ptr = s->code_ptr;
1764 tcg_out_bc_noaddr(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK);
1767 #else /* !CONFIG_SOFTMMU */
1768 rbase = guest_base ? TCG_GUEST_BASE_REG : 0;
1769 if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
1770 tcg_out_ext32u(s, TCG_REG_TMP1, addrlo);
1771 addrlo = TCG_REG_TMP1;
1775 if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) {
1776 if (opc & MO_BSWAP) {
1777 tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4));
1778 tcg_out32(s, LWBRX | TAB(datalo, rbase, addrlo));
1779 tcg_out32(s, LWBRX | TAB(datahi, rbase, TCG_REG_R0));
1780 } else if (rbase != 0) {
1781 tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4));
1782 tcg_out32(s, LWZX | TAB(datahi, rbase, addrlo));
1783 tcg_out32(s, LWZX | TAB(datalo, rbase, TCG_REG_R0));
1784 } else if (addrlo == datahi) {
1785 tcg_out32(s, LWZ | TAI(datalo, addrlo, 4));
1786 tcg_out32(s, LWZ | TAI(datahi, addrlo, 0));
1788 tcg_out32(s, LWZ | TAI(datahi, addrlo, 0));
1789 tcg_out32(s, LWZ | TAI(datalo, addrlo, 4));
1792 uint32_t insn = qemu_ldx_opc[opc & (MO_BSWAP | MO_SSIZE)];
1793 if (!HAVE_ISA_2_06 && insn == LDBRX) {
1794 tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4));
1795 tcg_out32(s, LWBRX | TAB(datalo, rbase, addrlo));
1796 tcg_out32(s, LWBRX | TAB(TCG_REG_R0, rbase, TCG_REG_R0));
1797 tcg_out_rld(s, RLDIMI, datalo, TCG_REG_R0, 32, 0);
1799 tcg_out32(s, insn | TAB(datalo, rbase, addrlo));
1801 insn = qemu_ldx_opc[opc & (MO_SIZE | MO_BSWAP)];
1802 tcg_out32(s, insn | TAB(datalo, rbase, addrlo));
1803 insn = qemu_exts_opc[s_bits];
1804 tcg_out32(s, insn | RA(datalo) | RS(datalo));
1808 #ifdef CONFIG_SOFTMMU
1809 add_qemu_ldst_label(s, true, oi, datalo, datahi, addrlo, addrhi,
1810 s->code_ptr, label_ptr);
1814 static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is_64)
1816 TCGReg datalo, datahi, addrlo, rbase;
1817 TCGReg addrhi __attribute__((unused));
1819 TCGMemOp opc, s_bits;
1820 #ifdef CONFIG_SOFTMMU
1822 tcg_insn_unit *label_ptr;
1826 datahi = (TCG_TARGET_REG_BITS == 32 && is_64 ? *args++ : 0);
1828 addrhi = (TCG_TARGET_REG_BITS < TARGET_LONG_BITS ? *args++ : 0);
1830 opc = get_memop(oi);
1831 s_bits = opc & MO_SIZE;
1833 #ifdef CONFIG_SOFTMMU
1834 mem_index = get_mmuidx(oi);
1835 addrlo = tcg_out_tlb_read(s, opc, addrlo, addrhi, mem_index, false);
1837 /* Load a pointer into the current opcode w/conditional branch-link. */
1838 label_ptr = s->code_ptr;
1839 tcg_out_bc_noaddr(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK);
1842 #else /* !CONFIG_SOFTMMU */
1843 rbase = guest_base ? TCG_GUEST_BASE_REG : 0;
1844 if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
1845 tcg_out_ext32u(s, TCG_REG_TMP1, addrlo);
1846 addrlo = TCG_REG_TMP1;
1850 if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) {
1851 if (opc & MO_BSWAP) {
1852 tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4));
1853 tcg_out32(s, STWBRX | SAB(datalo, rbase, addrlo));
1854 tcg_out32(s, STWBRX | SAB(datahi, rbase, TCG_REG_R0));
1855 } else if (rbase != 0) {
1856 tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4));
1857 tcg_out32(s, STWX | SAB(datahi, rbase, addrlo));
1858 tcg_out32(s, STWX | SAB(datalo, rbase, TCG_REG_R0));
1860 tcg_out32(s, STW | TAI(datahi, addrlo, 0));
1861 tcg_out32(s, STW | TAI(datalo, addrlo, 4));
1864 uint32_t insn = qemu_stx_opc[opc & (MO_BSWAP | MO_SIZE)];
1865 if (!HAVE_ISA_2_06 && insn == STDBRX) {
1866 tcg_out32(s, STWBRX | SAB(datalo, rbase, addrlo));
1867 tcg_out32(s, ADDI | TAI(TCG_REG_TMP1, addrlo, 4));
1868 tcg_out_shri64(s, TCG_REG_R0, datalo, 32);
1869 tcg_out32(s, STWBRX | SAB(TCG_REG_R0, rbase, TCG_REG_TMP1));
1871 tcg_out32(s, insn | SAB(datalo, rbase, addrlo));
1875 #ifdef CONFIG_SOFTMMU
1876 add_qemu_ldst_label(s, false, oi, datalo, datahi, addrlo, addrhi,
1877 s->code_ptr, label_ptr);
1881 static void tcg_out_nop_fill(tcg_insn_unit *p, int count)
1884 for (i = 0; i < count; ++i) {
1889 /* Parameters for function call generation, used in tcg.c. */
1890 #define TCG_TARGET_STACK_ALIGN 16
1891 #define TCG_TARGET_EXTEND_ARGS 1
1894 # define LINK_AREA_SIZE (6 * SZR)
1895 # define LR_OFFSET (1 * SZR)
1896 # define TCG_TARGET_CALL_STACK_OFFSET (LINK_AREA_SIZE + 8 * SZR)
1897 #elif defined(TCG_TARGET_CALL_DARWIN)
1898 # define LINK_AREA_SIZE (6 * SZR)
1899 # define LR_OFFSET (2 * SZR)
1900 #elif TCG_TARGET_REG_BITS == 64
1901 # if defined(_CALL_ELF) && _CALL_ELF == 2
1902 # define LINK_AREA_SIZE (4 * SZR)
1903 # define LR_OFFSET (1 * SZR)
1905 #else /* TCG_TARGET_REG_BITS == 32 */
1906 # if defined(_CALL_SYSV)
1907 # define LINK_AREA_SIZE (2 * SZR)
1908 # define LR_OFFSET (1 * SZR)
1912 # error "Unhandled abi"
1914 #ifndef TCG_TARGET_CALL_STACK_OFFSET
1915 # define TCG_TARGET_CALL_STACK_OFFSET LINK_AREA_SIZE
1918 #define CPU_TEMP_BUF_SIZE (CPU_TEMP_BUF_NLONGS * (int)sizeof(long))
1919 #define REG_SAVE_SIZE ((int)ARRAY_SIZE(tcg_target_callee_save_regs) * SZR)
1921 #define FRAME_SIZE ((TCG_TARGET_CALL_STACK_OFFSET \
1922 + TCG_STATIC_CALL_ARGS_SIZE \
1923 + CPU_TEMP_BUF_SIZE \
1925 + TCG_TARGET_STACK_ALIGN - 1) \
1926 & -TCG_TARGET_STACK_ALIGN)
1928 #define REG_SAVE_BOT (FRAME_SIZE - REG_SAVE_SIZE)
1930 static void tcg_target_qemu_prologue(TCGContext *s)
1935 void **desc = (void **)s->code_ptr;
1936 desc[0] = desc + 2; /* entry point */
1937 desc[1] = 0; /* environment pointer */
1938 s->code_ptr = (void *)(desc + 2); /* skip over descriptor */
1941 tcg_set_frame(s, TCG_REG_CALL_STACK, REG_SAVE_BOT - CPU_TEMP_BUF_SIZE,
1945 tcg_out32(s, MFSPR | RT(TCG_REG_R0) | LR);
1946 tcg_out32(s, (SZR == 8 ? STDU : STWU)
1947 | SAI(TCG_REG_R1, TCG_REG_R1, -FRAME_SIZE));
1949 for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i) {
1950 tcg_out_st(s, TCG_TYPE_REG, tcg_target_callee_save_regs[i],
1951 TCG_REG_R1, REG_SAVE_BOT + i * SZR);
1953 tcg_out_st(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_R1, FRAME_SIZE+LR_OFFSET);
1955 #ifndef CONFIG_SOFTMMU
1957 tcg_out_movi_int(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, guest_base, true);
1958 tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
1962 tcg_out_mov(s, TCG_TYPE_PTR, TCG_AREG0, tcg_target_call_iarg_regs[0]);
1963 tcg_out32(s, MTSPR | RS(tcg_target_call_iarg_regs[1]) | CTR);
1965 tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_TB, tcg_target_call_iarg_regs[1]);
1967 tcg_out32(s, BCCTR | BO_ALWAYS);
1970 s->code_gen_epilogue = tb_ret_addr = s->code_ptr;
1972 tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_R1, FRAME_SIZE+LR_OFFSET);
1973 for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i) {
1974 tcg_out_ld(s, TCG_TYPE_REG, tcg_target_callee_save_regs[i],
1975 TCG_REG_R1, REG_SAVE_BOT + i * SZR);
1977 tcg_out32(s, MTSPR | RS(TCG_REG_R0) | LR);
1978 tcg_out32(s, ADDI | TAI(TCG_REG_R1, TCG_REG_R1, FRAME_SIZE));
1979 tcg_out32(s, BCLR | BO_ALWAYS);
1982 static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,
1983 const int *const_args)
1989 case INDEX_op_exit_tb:
1990 tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R3, args[0]);
1991 tcg_out_b(s, 0, tb_ret_addr);
1993 case INDEX_op_goto_tb:
1994 if (s->tb_jmp_insn_offset) {
1996 if (TCG_TARGET_REG_BITS == 64) {
1997 /* Ensure the next insns are 8-byte aligned. */
1998 if ((uintptr_t)s->code_ptr & 7) {
2001 s->tb_jmp_insn_offset[args[0]] = tcg_current_code_size(s);
2002 tcg_out32(s, ADDIS | TAI(TCG_REG_TB, TCG_REG_TB, 0));
2003 tcg_out32(s, ADDI | TAI(TCG_REG_TB, TCG_REG_TB, 0));
2005 s->tb_jmp_insn_offset[args[0]] = tcg_current_code_size(s);
2007 s->tb_jmp_reset_offset[args[0]] = tcg_current_code_size(s);
2011 /* Indirect jump. */
2012 tcg_debug_assert(s->tb_jmp_insn_offset == NULL);
2013 tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TB, 0,
2014 (intptr_t)(s->tb_jmp_insn_offset + args[0]));
2016 tcg_out32(s, MTSPR | RS(TCG_REG_TB) | CTR);
2017 tcg_out32(s, BCCTR | BO_ALWAYS);
2018 s->tb_jmp_reset_offset[args[0]] = c = tcg_current_code_size(s);
2020 /* For the unlinked case, need to reset TCG_REG_TB. */
2022 assert(c == (int16_t)c);
2023 tcg_out32(s, ADDI | TAI(TCG_REG_TB, TCG_REG_TB, c));
2026 case INDEX_op_goto_ptr:
2027 tcg_out32(s, MTSPR | RS(args[0]) | CTR);
2029 tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_TB, args[0]);
2031 tcg_out32(s, ADDI | TAI(TCG_REG_R3, 0, 0));
2032 tcg_out32(s, BCCTR | BO_ALWAYS);
2036 TCGLabel *l = arg_label(args[0]);
2039 tcg_out_b(s, 0, l->u.value_ptr);
2041 tcg_out_reloc(s, s->code_ptr, R_PPC_REL24, l, 0);
2042 tcg_out_b_noaddr(s, B);
2046 case INDEX_op_ld8u_i32:
2047 case INDEX_op_ld8u_i64:
2048 tcg_out_mem_long(s, LBZ, LBZX, args[0], args[1], args[2]);
2050 case INDEX_op_ld8s_i32:
2051 case INDEX_op_ld8s_i64:
2052 tcg_out_mem_long(s, LBZ, LBZX, args[0], args[1], args[2]);
2053 tcg_out32(s, EXTSB | RS(args[0]) | RA(args[0]));
2055 case INDEX_op_ld16u_i32:
2056 case INDEX_op_ld16u_i64:
2057 tcg_out_mem_long(s, LHZ, LHZX, args[0], args[1], args[2]);
2059 case INDEX_op_ld16s_i32:
2060 case INDEX_op_ld16s_i64:
2061 tcg_out_mem_long(s, LHA, LHAX, args[0], args[1], args[2]);
2063 case INDEX_op_ld_i32:
2064 case INDEX_op_ld32u_i64:
2065 tcg_out_mem_long(s, LWZ, LWZX, args[0], args[1], args[2]);
2067 case INDEX_op_ld32s_i64:
2068 tcg_out_mem_long(s, LWA, LWAX, args[0], args[1], args[2]);
2070 case INDEX_op_ld_i64:
2071 tcg_out_mem_long(s, LD, LDX, args[0], args[1], args[2]);
2073 case INDEX_op_st8_i32:
2074 case INDEX_op_st8_i64:
2075 tcg_out_mem_long(s, STB, STBX, args[0], args[1], args[2]);
2077 case INDEX_op_st16_i32:
2078 case INDEX_op_st16_i64:
2079 tcg_out_mem_long(s, STH, STHX, args[0], args[1], args[2]);
2081 case INDEX_op_st_i32:
2082 case INDEX_op_st32_i64:
2083 tcg_out_mem_long(s, STW, STWX, args[0], args[1], args[2]);
2085 case INDEX_op_st_i64:
2086 tcg_out_mem_long(s, STD, STDX, args[0], args[1], args[2]);
2089 case INDEX_op_add_i32:
2090 a0 = args[0], a1 = args[1], a2 = args[2];
2091 if (const_args[2]) {
2093 tcg_out_mem_long(s, ADDI, ADD, a0, a1, (int32_t)a2);
2095 tcg_out32(s, ADD | TAB(a0, a1, a2));
2098 case INDEX_op_sub_i32:
2099 a0 = args[0], a1 = args[1], a2 = args[2];
2100 if (const_args[1]) {
2101 if (const_args[2]) {
2102 tcg_out_movi(s, TCG_TYPE_I32, a0, a1 - a2);
2104 tcg_out32(s, SUBFIC | TAI(a0, a2, a1));
2106 } else if (const_args[2]) {
2110 tcg_out32(s, SUBF | TAB(a0, a2, a1));
2114 case INDEX_op_and_i32:
2115 a0 = args[0], a1 = args[1], a2 = args[2];
2116 if (const_args[2]) {
2117 tcg_out_andi32(s, a0, a1, a2);
2119 tcg_out32(s, AND | SAB(a1, a0, a2));
2122 case INDEX_op_and_i64:
2123 a0 = args[0], a1 = args[1], a2 = args[2];
2124 if (const_args[2]) {
2125 tcg_out_andi64(s, a0, a1, a2);
2127 tcg_out32(s, AND | SAB(a1, a0, a2));
2130 case INDEX_op_or_i64:
2131 case INDEX_op_or_i32:
2132 a0 = args[0], a1 = args[1], a2 = args[2];
2133 if (const_args[2]) {
2134 tcg_out_ori32(s, a0, a1, a2);
2136 tcg_out32(s, OR | SAB(a1, a0, a2));
2139 case INDEX_op_xor_i64:
2140 case INDEX_op_xor_i32:
2141 a0 = args[0], a1 = args[1], a2 = args[2];
2142 if (const_args[2]) {
2143 tcg_out_xori32(s, a0, a1, a2);
2145 tcg_out32(s, XOR | SAB(a1, a0, a2));
2148 case INDEX_op_andc_i32:
2149 a0 = args[0], a1 = args[1], a2 = args[2];
2150 if (const_args[2]) {
2151 tcg_out_andi32(s, a0, a1, ~a2);
2153 tcg_out32(s, ANDC | SAB(a1, a0, a2));
2156 case INDEX_op_andc_i64:
2157 a0 = args[0], a1 = args[1], a2 = args[2];
2158 if (const_args[2]) {
2159 tcg_out_andi64(s, a0, a1, ~a2);
2161 tcg_out32(s, ANDC | SAB(a1, a0, a2));
2164 case INDEX_op_orc_i32:
2165 if (const_args[2]) {
2166 tcg_out_ori32(s, args[0], args[1], ~args[2]);
2170 case INDEX_op_orc_i64:
2171 tcg_out32(s, ORC | SAB(args[1], args[0], args[2]));
2173 case INDEX_op_eqv_i32:
2174 if (const_args[2]) {
2175 tcg_out_xori32(s, args[0], args[1], ~args[2]);
2179 case INDEX_op_eqv_i64:
2180 tcg_out32(s, EQV | SAB(args[1], args[0], args[2]));
2182 case INDEX_op_nand_i32:
2183 case INDEX_op_nand_i64:
2184 tcg_out32(s, NAND | SAB(args[1], args[0], args[2]));
2186 case INDEX_op_nor_i32:
2187 case INDEX_op_nor_i64:
2188 tcg_out32(s, NOR | SAB(args[1], args[0], args[2]));
2191 case INDEX_op_clz_i32:
2192 tcg_out_cntxz(s, TCG_TYPE_I32, CNTLZW, args[0], args[1],
2193 args[2], const_args[2]);
2195 case INDEX_op_ctz_i32:
2196 tcg_out_cntxz(s, TCG_TYPE_I32, CNTTZW, args[0], args[1],
2197 args[2], const_args[2]);
2199 case INDEX_op_ctpop_i32:
2200 tcg_out32(s, CNTPOPW | SAB(args[1], args[0], 0));
2203 case INDEX_op_clz_i64:
2204 tcg_out_cntxz(s, TCG_TYPE_I64, CNTLZD, args[0], args[1],
2205 args[2], const_args[2]);
2207 case INDEX_op_ctz_i64:
2208 tcg_out_cntxz(s, TCG_TYPE_I64, CNTTZD, args[0], args[1],
2209 args[2], const_args[2]);
2211 case INDEX_op_ctpop_i64:
2212 tcg_out32(s, CNTPOPD | SAB(args[1], args[0], 0));
2215 case INDEX_op_mul_i32:
2216 a0 = args[0], a1 = args[1], a2 = args[2];
2217 if (const_args[2]) {
2218 tcg_out32(s, MULLI | TAI(a0, a1, a2));
2220 tcg_out32(s, MULLW | TAB(a0, a1, a2));
2224 case INDEX_op_div_i32:
2225 tcg_out32(s, DIVW | TAB(args[0], args[1], args[2]));
2228 case INDEX_op_divu_i32:
2229 tcg_out32(s, DIVWU | TAB(args[0], args[1], args[2]));
2232 case INDEX_op_shl_i32:
2233 if (const_args[2]) {
2234 tcg_out_shli32(s, args[0], args[1], args[2]);
2236 tcg_out32(s, SLW | SAB(args[1], args[0], args[2]));
2239 case INDEX_op_shr_i32:
2240 if (const_args[2]) {
2241 tcg_out_shri32(s, args[0], args[1], args[2]);
2243 tcg_out32(s, SRW | SAB(args[1], args[0], args[2]));
2246 case INDEX_op_sar_i32:
2247 if (const_args[2]) {
2248 tcg_out32(s, SRAWI | RS(args[1]) | RA(args[0]) | SH(args[2]));
2250 tcg_out32(s, SRAW | SAB(args[1], args[0], args[2]));
2253 case INDEX_op_rotl_i32:
2254 if (const_args[2]) {
2255 tcg_out_rlw(s, RLWINM, args[0], args[1], args[2], 0, 31);
2257 tcg_out32(s, RLWNM | SAB(args[1], args[0], args[2])
2261 case INDEX_op_rotr_i32:
2262 if (const_args[2]) {
2263 tcg_out_rlw(s, RLWINM, args[0], args[1], 32 - args[2], 0, 31);
2265 tcg_out32(s, SUBFIC | TAI(TCG_REG_R0, args[2], 32));
2266 tcg_out32(s, RLWNM | SAB(args[1], args[0], TCG_REG_R0)
2271 case INDEX_op_brcond_i32:
2272 tcg_out_brcond(s, args[2], args[0], args[1], const_args[1],
2273 arg_label(args[3]), TCG_TYPE_I32);
2275 case INDEX_op_brcond_i64:
2276 tcg_out_brcond(s, args[2], args[0], args[1], const_args[1],
2277 arg_label(args[3]), TCG_TYPE_I64);
2279 case INDEX_op_brcond2_i32:
2280 tcg_out_brcond2(s, args, const_args);
2283 case INDEX_op_neg_i32:
2284 case INDEX_op_neg_i64:
2285 tcg_out32(s, NEG | RT(args[0]) | RA(args[1]));
2288 case INDEX_op_not_i32:
2289 case INDEX_op_not_i64:
2290 tcg_out32(s, NOR | SAB(args[1], args[0], args[1]));
2293 case INDEX_op_add_i64:
2294 a0 = args[0], a1 = args[1], a2 = args[2];
2295 if (const_args[2]) {
2297 tcg_out_mem_long(s, ADDI, ADD, a0, a1, a2);
2299 tcg_out32(s, ADD | TAB(a0, a1, a2));
2302 case INDEX_op_sub_i64:
2303 a0 = args[0], a1 = args[1], a2 = args[2];
2304 if (const_args[1]) {
2305 if (const_args[2]) {
2306 tcg_out_movi(s, TCG_TYPE_I64, a0, a1 - a2);
2308 tcg_out32(s, SUBFIC | TAI(a0, a2, a1));
2310 } else if (const_args[2]) {
2314 tcg_out32(s, SUBF | TAB(a0, a2, a1));
2318 case INDEX_op_shl_i64:
2319 if (const_args[2]) {
2320 tcg_out_shli64(s, args[0], args[1], args[2]);
2322 tcg_out32(s, SLD | SAB(args[1], args[0], args[2]));
2325 case INDEX_op_shr_i64:
2326 if (const_args[2]) {
2327 tcg_out_shri64(s, args[0], args[1], args[2]);
2329 tcg_out32(s, SRD | SAB(args[1], args[0], args[2]));
2332 case INDEX_op_sar_i64:
2333 if (const_args[2]) {
2334 int sh = SH(args[2] & 0x1f) | (((args[2] >> 5) & 1) << 1);
2335 tcg_out32(s, SRADI | RA(args[0]) | RS(args[1]) | sh);
2337 tcg_out32(s, SRAD | SAB(args[1], args[0], args[2]));
2340 case INDEX_op_rotl_i64:
2341 if (const_args[2]) {
2342 tcg_out_rld(s, RLDICL, args[0], args[1], args[2], 0);
2344 tcg_out32(s, RLDCL | SAB(args[1], args[0], args[2]) | MB64(0));
2347 case INDEX_op_rotr_i64:
2348 if (const_args[2]) {
2349 tcg_out_rld(s, RLDICL, args[0], args[1], 64 - args[2], 0);
2351 tcg_out32(s, SUBFIC | TAI(TCG_REG_R0, args[2], 64));
2352 tcg_out32(s, RLDCL | SAB(args[1], args[0], TCG_REG_R0) | MB64(0));
2356 case INDEX_op_mul_i64:
2357 a0 = args[0], a1 = args[1], a2 = args[2];
2358 if (const_args[2]) {
2359 tcg_out32(s, MULLI | TAI(a0, a1, a2));
2361 tcg_out32(s, MULLD | TAB(a0, a1, a2));
2364 case INDEX_op_div_i64:
2365 tcg_out32(s, DIVD | TAB(args[0], args[1], args[2]));
2367 case INDEX_op_divu_i64:
2368 tcg_out32(s, DIVDU | TAB(args[0], args[1], args[2]));
2371 case INDEX_op_qemu_ld_i32:
2372 tcg_out_qemu_ld(s, args, false);
2374 case INDEX_op_qemu_ld_i64:
2375 tcg_out_qemu_ld(s, args, true);
2377 case INDEX_op_qemu_st_i32:
2378 tcg_out_qemu_st(s, args, false);
2380 case INDEX_op_qemu_st_i64:
2381 tcg_out_qemu_st(s, args, true);
2384 case INDEX_op_ext8s_i32:
2385 case INDEX_op_ext8s_i64:
2388 case INDEX_op_ext16s_i32:
2389 case INDEX_op_ext16s_i64:
2392 case INDEX_op_ext_i32_i64:
2393 case INDEX_op_ext32s_i64:
2397 tcg_out32(s, c | RS(args[1]) | RA(args[0]));
2399 case INDEX_op_extu_i32_i64:
2400 tcg_out_ext32u(s, args[0], args[1]);
2403 case INDEX_op_setcond_i32:
2404 tcg_out_setcond(s, TCG_TYPE_I32, args[3], args[0], args[1], args[2],
2407 case INDEX_op_setcond_i64:
2408 tcg_out_setcond(s, TCG_TYPE_I64, args[3], args[0], args[1], args[2],
2411 case INDEX_op_setcond2_i32:
2412 tcg_out_setcond2(s, args, const_args);
2415 case INDEX_op_bswap16_i32:
2416 case INDEX_op_bswap16_i64:
2417 a0 = args[0], a1 = args[1];
2420 /* a0 = (a1 r<< 24) & 0xff # 000c */
2421 tcg_out_rlw(s, RLWINM, a0, a1, 24, 24, 31);
2422 /* a0 = (a0 & ~0xff00) | (a1 r<< 8) & 0xff00 # 00dc */
2423 tcg_out_rlw(s, RLWIMI, a0, a1, 8, 16, 23);
2425 /* r0 = (a1 r<< 8) & 0xff00 # 00d0 */
2426 tcg_out_rlw(s, RLWINM, TCG_REG_R0, a1, 8, 16, 23);
2427 /* a0 = (a1 r<< 24) & 0xff # 000c */
2428 tcg_out_rlw(s, RLWINM, a0, a1, 24, 24, 31);
2429 /* a0 = a0 | r0 # 00dc */
2430 tcg_out32(s, OR | SAB(TCG_REG_R0, a0, a0));
2434 case INDEX_op_bswap32_i32:
2435 case INDEX_op_bswap32_i64:
2436 /* Stolen from gcc's builtin_bswap32 */
2438 a0 = args[0] == a1 ? TCG_REG_R0 : args[0];
2440 /* a1 = args[1] # abcd */
2441 /* a0 = rotate_left (a1, 8) # bcda */
2442 tcg_out_rlw(s, RLWINM, a0, a1, 8, 0, 31);
2443 /* a0 = (a0 & ~0xff000000) | ((a1 r<< 24) & 0xff000000) # dcda */
2444 tcg_out_rlw(s, RLWIMI, a0, a1, 24, 0, 7);
2445 /* a0 = (a0 & ~0x0000ff00) | ((a1 r<< 24) & 0x0000ff00) # dcba */
2446 tcg_out_rlw(s, RLWIMI, a0, a1, 24, 16, 23);
2448 if (a0 == TCG_REG_R0) {
2449 tcg_out_mov(s, TCG_TYPE_REG, args[0], a0);
2453 case INDEX_op_bswap64_i64:
2454 a0 = args[0], a1 = args[1], a2 = TCG_REG_R0;
2460 /* a1 = # abcd efgh */
2461 /* a0 = rl32(a1, 8) # 0000 fghe */
2462 tcg_out_rlw(s, RLWINM, a0, a1, 8, 0, 31);
2463 /* a0 = dep(a0, rl32(a1, 24), 0xff000000) # 0000 hghe */
2464 tcg_out_rlw(s, RLWIMI, a0, a1, 24, 0, 7);
2465 /* a0 = dep(a0, rl32(a1, 24), 0x0000ff00) # 0000 hgfe */
2466 tcg_out_rlw(s, RLWIMI, a0, a1, 24, 16, 23);
2468 /* a0 = rl64(a0, 32) # hgfe 0000 */
2469 /* a2 = rl64(a1, 32) # efgh abcd */
2470 tcg_out_rld(s, RLDICL, a0, a0, 32, 0);
2471 tcg_out_rld(s, RLDICL, a2, a1, 32, 0);
2473 /* a0 = dep(a0, rl32(a2, 8), 0xffffffff) # hgfe bcda */
2474 tcg_out_rlw(s, RLWIMI, a0, a2, 8, 0, 31);
2475 /* a0 = dep(a0, rl32(a2, 24), 0xff000000) # hgfe dcda */
2476 tcg_out_rlw(s, RLWIMI, a0, a2, 24, 0, 7);
2477 /* a0 = dep(a0, rl32(a2, 24), 0x0000ff00) # hgfe dcba */
2478 tcg_out_rlw(s, RLWIMI, a0, a2, 24, 16, 23);
2481 tcg_out_mov(s, TCG_TYPE_REG, args[0], a0);
2485 case INDEX_op_deposit_i32:
2486 if (const_args[2]) {
2487 uint32_t mask = ((2u << (args[4] - 1)) - 1) << args[3];
2488 tcg_out_andi32(s, args[0], args[0], ~mask);
2490 tcg_out_rlw(s, RLWIMI, args[0], args[2], args[3],
2491 32 - args[3] - args[4], 31 - args[3]);
2494 case INDEX_op_deposit_i64:
2495 if (const_args[2]) {
2496 uint64_t mask = ((2ull << (args[4] - 1)) - 1) << args[3];
2497 tcg_out_andi64(s, args[0], args[0], ~mask);
2499 tcg_out_rld(s, RLDIMI, args[0], args[2], args[3],
2500 64 - args[3] - args[4]);
2504 case INDEX_op_extract_i32:
2505 tcg_out_rlw(s, RLWINM, args[0], args[1],
2506 32 - args[2], 32 - args[3], 31);
2508 case INDEX_op_extract_i64:
2509 tcg_out_rld(s, RLDICL, args[0], args[1], 64 - args[2], 64 - args[3]);
2512 case INDEX_op_movcond_i32:
2513 tcg_out_movcond(s, TCG_TYPE_I32, args[5], args[0], args[1], args[2],
2514 args[3], args[4], const_args[2]);
2516 case INDEX_op_movcond_i64:
2517 tcg_out_movcond(s, TCG_TYPE_I64, args[5], args[0], args[1], args[2],
2518 args[3], args[4], const_args[2]);
2521 #if TCG_TARGET_REG_BITS == 64
2522 case INDEX_op_add2_i64:
2524 case INDEX_op_add2_i32:
2526 /* Note that the CA bit is defined based on the word size of the
2527 environment. So in 64-bit mode it's always carry-out of bit 63.
2528 The fallback code using deposit works just as well for 32-bit. */
2529 a0 = args[0], a1 = args[1];
2530 if (a0 == args[3] || (!const_args[5] && a0 == args[5])) {
2533 if (const_args[4]) {
2534 tcg_out32(s, ADDIC | TAI(a0, args[2], args[4]));
2536 tcg_out32(s, ADDC | TAB(a0, args[2], args[4]));
2538 if (const_args[5]) {
2539 tcg_out32(s, (args[5] ? ADDME : ADDZE) | RT(a1) | RA(args[3]));
2541 tcg_out32(s, ADDE | TAB(a1, args[3], args[5]));
2543 if (a0 != args[0]) {
2544 tcg_out_mov(s, TCG_TYPE_REG, args[0], a0);
2548 #if TCG_TARGET_REG_BITS == 64
2549 case INDEX_op_sub2_i64:
2551 case INDEX_op_sub2_i32:
2553 a0 = args[0], a1 = args[1];
2554 if (a0 == args[5] || (!const_args[3] && a0 == args[3])) {
2557 if (const_args[2]) {
2558 tcg_out32(s, SUBFIC | TAI(a0, args[4], args[2]));
2560 tcg_out32(s, SUBFC | TAB(a0, args[4], args[2]));
2562 if (const_args[3]) {
2563 tcg_out32(s, (args[3] ? SUBFME : SUBFZE) | RT(a1) | RA(args[5]));
2565 tcg_out32(s, SUBFE | TAB(a1, args[5], args[3]));
2567 if (a0 != args[0]) {
2568 tcg_out_mov(s, TCG_TYPE_REG, args[0], a0);
2572 case INDEX_op_muluh_i32:
2573 tcg_out32(s, MULHWU | TAB(args[0], args[1], args[2]));
2575 case INDEX_op_mulsh_i32:
2576 tcg_out32(s, MULHW | TAB(args[0], args[1], args[2]));
2578 case INDEX_op_muluh_i64:
2579 tcg_out32(s, MULHDU | TAB(args[0], args[1], args[2]));
2581 case INDEX_op_mulsh_i64:
2582 tcg_out32(s, MULHD | TAB(args[0], args[1], args[2]));
2586 tcg_out_mb(s, args[0]);
2589 case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
2590 case INDEX_op_mov_i64:
2591 case INDEX_op_movi_i32: /* Always emitted via tcg_out_movi. */
2592 case INDEX_op_movi_i64:
2593 case INDEX_op_call: /* Always emitted via tcg_out_call. */
2599 static const TCGTargetOpDef ppc_op_defs[] = {
2600 { INDEX_op_exit_tb, { } },
2601 { INDEX_op_goto_tb, { } },
2602 { INDEX_op_br, { } },
2603 { INDEX_op_goto_ptr, { "r" } },
2605 { INDEX_op_ld8u_i32, { "r", "r" } },
2606 { INDEX_op_ld8s_i32, { "r", "r" } },
2607 { INDEX_op_ld16u_i32, { "r", "r" } },
2608 { INDEX_op_ld16s_i32, { "r", "r" } },
2609 { INDEX_op_ld_i32, { "r", "r" } },
2611 { INDEX_op_st8_i32, { "r", "r" } },
2612 { INDEX_op_st16_i32, { "r", "r" } },
2613 { INDEX_op_st_i32, { "r", "r" } },
2615 { INDEX_op_add_i32, { "r", "r", "ri" } },
2616 { INDEX_op_mul_i32, { "r", "r", "rI" } },
2617 { INDEX_op_div_i32, { "r", "r", "r" } },
2618 { INDEX_op_divu_i32, { "r", "r", "r" } },
2619 { INDEX_op_sub_i32, { "r", "rI", "ri" } },
2620 { INDEX_op_and_i32, { "r", "r", "ri" } },
2621 { INDEX_op_or_i32, { "r", "r", "ri" } },
2622 { INDEX_op_xor_i32, { "r", "r", "ri" } },
2623 { INDEX_op_andc_i32, { "r", "r", "ri" } },
2624 { INDEX_op_orc_i32, { "r", "r", "ri" } },
2625 { INDEX_op_eqv_i32, { "r", "r", "ri" } },
2626 { INDEX_op_nand_i32, { "r", "r", "r" } },
2627 { INDEX_op_nor_i32, { "r", "r", "r" } },
2628 { INDEX_op_clz_i32, { "r", "r", "rZW" } },
2629 { INDEX_op_ctz_i32, { "r", "r", "rZW" } },
2630 { INDEX_op_ctpop_i32, { "r", "r" } },
2632 { INDEX_op_shl_i32, { "r", "r", "ri" } },
2633 { INDEX_op_shr_i32, { "r", "r", "ri" } },
2634 { INDEX_op_sar_i32, { "r", "r", "ri" } },
2635 { INDEX_op_rotl_i32, { "r", "r", "ri" } },
2636 { INDEX_op_rotr_i32, { "r", "r", "ri" } },
2638 { INDEX_op_neg_i32, { "r", "r" } },
2639 { INDEX_op_not_i32, { "r", "r" } },
2640 { INDEX_op_ext8s_i32, { "r", "r" } },
2641 { INDEX_op_ext16s_i32, { "r", "r" } },
2642 { INDEX_op_bswap16_i32, { "r", "r" } },
2643 { INDEX_op_bswap32_i32, { "r", "r" } },
2645 { INDEX_op_brcond_i32, { "r", "ri" } },
2646 { INDEX_op_setcond_i32, { "r", "r", "ri" } },
2647 { INDEX_op_movcond_i32, { "r", "r", "ri", "rZ", "rZ" } },
2649 { INDEX_op_deposit_i32, { "r", "0", "rZ" } },
2650 { INDEX_op_extract_i32, { "r", "r" } },
2652 { INDEX_op_muluh_i32, { "r", "r", "r" } },
2653 { INDEX_op_mulsh_i32, { "r", "r", "r" } },
2655 #if TCG_TARGET_REG_BITS == 64
2656 { INDEX_op_ld8u_i64, { "r", "r" } },
2657 { INDEX_op_ld8s_i64, { "r", "r" } },
2658 { INDEX_op_ld16u_i64, { "r", "r" } },
2659 { INDEX_op_ld16s_i64, { "r", "r" } },
2660 { INDEX_op_ld32u_i64, { "r", "r" } },
2661 { INDEX_op_ld32s_i64, { "r", "r" } },
2662 { INDEX_op_ld_i64, { "r", "r" } },
2664 { INDEX_op_st8_i64, { "r", "r" } },
2665 { INDEX_op_st16_i64, { "r", "r" } },
2666 { INDEX_op_st32_i64, { "r", "r" } },
2667 { INDEX_op_st_i64, { "r", "r" } },
2669 { INDEX_op_add_i64, { "r", "r", "rT" } },
2670 { INDEX_op_sub_i64, { "r", "rI", "rT" } },
2671 { INDEX_op_and_i64, { "r", "r", "ri" } },
2672 { INDEX_op_or_i64, { "r", "r", "rU" } },
2673 { INDEX_op_xor_i64, { "r", "r", "rU" } },
2674 { INDEX_op_andc_i64, { "r", "r", "ri" } },
2675 { INDEX_op_orc_i64, { "r", "r", "r" } },
2676 { INDEX_op_eqv_i64, { "r", "r", "r" } },
2677 { INDEX_op_nand_i64, { "r", "r", "r" } },
2678 { INDEX_op_nor_i64, { "r", "r", "r" } },
2679 { INDEX_op_clz_i64, { "r", "r", "rZW" } },
2680 { INDEX_op_ctz_i64, { "r", "r", "rZW" } },
2681 { INDEX_op_ctpop_i64, { "r", "r" } },
2683 { INDEX_op_shl_i64, { "r", "r", "ri" } },
2684 { INDEX_op_shr_i64, { "r", "r", "ri" } },
2685 { INDEX_op_sar_i64, { "r", "r", "ri" } },
2686 { INDEX_op_rotl_i64, { "r", "r", "ri" } },
2687 { INDEX_op_rotr_i64, { "r", "r", "ri" } },
2689 { INDEX_op_mul_i64, { "r", "r", "rI" } },
2690 { INDEX_op_div_i64, { "r", "r", "r" } },
2691 { INDEX_op_divu_i64, { "r", "r", "r" } },
2693 { INDEX_op_neg_i64, { "r", "r" } },
2694 { INDEX_op_not_i64, { "r", "r" } },
2695 { INDEX_op_ext8s_i64, { "r", "r" } },
2696 { INDEX_op_ext16s_i64, { "r", "r" } },
2697 { INDEX_op_ext32s_i64, { "r", "r" } },
2698 { INDEX_op_ext_i32_i64, { "r", "r" } },
2699 { INDEX_op_extu_i32_i64, { "r", "r" } },
2700 { INDEX_op_bswap16_i64, { "r", "r" } },
2701 { INDEX_op_bswap32_i64, { "r", "r" } },
2702 { INDEX_op_bswap64_i64, { "r", "r" } },
2704 { INDEX_op_brcond_i64, { "r", "ri" } },
2705 { INDEX_op_setcond_i64, { "r", "r", "ri" } },
2706 { INDEX_op_movcond_i64, { "r", "r", "ri", "rZ", "rZ" } },
2708 { INDEX_op_deposit_i64, { "r", "0", "rZ" } },
2709 { INDEX_op_extract_i64, { "r", "r" } },
2711 { INDEX_op_mulsh_i64, { "r", "r", "r" } },
2712 { INDEX_op_muluh_i64, { "r", "r", "r" } },
2715 #if TCG_TARGET_REG_BITS == 32
2716 { INDEX_op_brcond2_i32, { "r", "r", "ri", "ri" } },
2717 { INDEX_op_setcond2_i32, { "r", "r", "r", "ri", "ri" } },
2720 #if TCG_TARGET_REG_BITS == 64
2721 { INDEX_op_add2_i64, { "r", "r", "r", "r", "rI", "rZM" } },
2722 { INDEX_op_sub2_i64, { "r", "r", "rI", "rZM", "r", "r" } },
2724 { INDEX_op_add2_i32, { "r", "r", "r", "r", "rI", "rZM" } },
2725 { INDEX_op_sub2_i32, { "r", "r", "rI", "rZM", "r", "r" } },
2728 #if TCG_TARGET_REG_BITS == 64
2729 { INDEX_op_qemu_ld_i32, { "r", "L" } },
2730 { INDEX_op_qemu_st_i32, { "S", "S" } },
2731 { INDEX_op_qemu_ld_i64, { "r", "L" } },
2732 { INDEX_op_qemu_st_i64, { "S", "S" } },
2733 #elif TARGET_LONG_BITS == 32
2734 { INDEX_op_qemu_ld_i32, { "r", "L" } },
2735 { INDEX_op_qemu_st_i32, { "S", "S" } },
2736 { INDEX_op_qemu_ld_i64, { "L", "L", "L" } },
2737 { INDEX_op_qemu_st_i64, { "S", "S", "S" } },
2739 { INDEX_op_qemu_ld_i32, { "r", "L", "L" } },
2740 { INDEX_op_qemu_st_i32, { "S", "S", "S" } },
2741 { INDEX_op_qemu_ld_i64, { "L", "L", "L", "L" } },
2742 { INDEX_op_qemu_st_i64, { "S", "S", "S", "S" } },
2745 { INDEX_op_mb, { } },
2749 static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op)
2751 int i, n = ARRAY_SIZE(ppc_op_defs);
2753 for (i = 0; i < n; ++i) {
2754 if (ppc_op_defs[i].op == op) {
2755 return &ppc_op_defs[i];
2761 static void tcg_target_init(TCGContext *s)
2763 unsigned long hwcap = qemu_getauxval(AT_HWCAP);
2764 unsigned long hwcap2 = qemu_getauxval(AT_HWCAP2);
2766 if (hwcap & PPC_FEATURE_ARCH_2_06) {
2767 have_isa_2_06 = true;
2769 #ifdef PPC_FEATURE2_ARCH_3_00
2770 if (hwcap2 & PPC_FEATURE2_ARCH_3_00) {
2771 have_isa_3_00 = true;
2775 tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff);
2776 tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffffffff);
2777 tcg_regset_set32(tcg_target_call_clobber_regs, 0,
2787 (1 << TCG_REG_R10) |
2788 (1 << TCG_REG_R11) |
2789 (1 << TCG_REG_R12));
2791 tcg_regset_clear(s->reserved_regs);
2792 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0); /* tcg temp */
2793 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1); /* stack pointer */
2794 #if defined(_CALL_SYSV)
2795 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R2); /* toc pointer */
2797 #if defined(_CALL_SYSV) || TCG_TARGET_REG_BITS == 64
2798 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R13); /* thread pointer */
2800 tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP1); /* mem temp */
2802 tcg_regset_set_reg(s->reserved_regs, TCG_REG_TB); /* tb->tc_ptr */
2809 DebugFrameFDEHeader fde;
2810 uint8_t fde_def_cfa[4];
2811 uint8_t fde_reg_ofs[ARRAY_SIZE(tcg_target_callee_save_regs) * 2 + 3];
2814 /* We're expecting a 2 byte uleb128 encoded value. */
2815 QEMU_BUILD_BUG_ON(FRAME_SIZE >= (1 << 14));
2817 #if TCG_TARGET_REG_BITS == 64
2818 # define ELF_HOST_MACHINE EM_PPC64
2820 # define ELF_HOST_MACHINE EM_PPC
2823 static DebugFrame debug_frame = {
2824 .cie.len = sizeof(DebugFrameCIE)-4, /* length after .len member */
2827 .cie.code_align = 1,
2828 .cie.data_align = (-SZR & 0x7f), /* sleb128 -SZR */
2829 .cie.return_column = 65,
2831 /* Total FDE size does not include the "len" member. */
2832 .fde.len = sizeof(DebugFrame) - offsetof(DebugFrame, fde.cie_offset),
2835 12, TCG_REG_R1, /* DW_CFA_def_cfa r1, ... */
2836 (FRAME_SIZE & 0x7f) | 0x80, /* ... uleb128 FRAME_SIZE */
2840 /* DW_CFA_offset_extended_sf, lr, LR_OFFSET */
2841 0x11, 65, (LR_OFFSET / -SZR) & 0x7f,
2845 void tcg_register_jit(void *buf, size_t buf_size)
2847 uint8_t *p = &debug_frame.fde_reg_ofs[3];
2850 for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i, p += 2) {
2851 p[0] = 0x80 + tcg_target_callee_save_regs[i];
2852 p[1] = (FRAME_SIZE - (REG_SAVE_BOT + i * SZR)) / SZR;
2855 debug_frame.fde.func_start = (uintptr_t)buf;
2856 debug_frame.fde.func_len = buf_size;
2858 tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame));
2860 #endif /* __ELF__ */
2862 void flush_icache_range(uintptr_t start, uintptr_t stop)
2864 uintptr_t p, start1, stop1;
2865 size_t dsize = qemu_dcache_linesize;
2866 size_t isize = qemu_icache_linesize;
2868 start1 = start & ~(dsize - 1);
2869 stop1 = (stop + dsize - 1) & ~(dsize - 1);
2870 for (p = start1; p < stop1; p += dsize) {
2871 asm volatile ("dcbst 0,%0" : : "r"(p) : "memory");
2873 asm volatile ("sync" : : : "memory");
2875 start &= start & ~(isize - 1);
2876 stop1 = (stop + isize - 1) & ~(isize - 1);
2877 for (p = start1; p < stop1; p += isize) {
2878 asm volatile ("icbi 0,%0" : : "r"(p) : "memory");
2880 asm volatile ("sync" : : : "memory");
2881 asm volatile ("isync" : : : "memory");