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
25 #include "tcg-be-ldst.h"
27 static tcg_insn_unit *tb_ret_addr;
29 #if defined _CALL_DARWIN || defined __APPLE__
30 #define TCG_TARGET_CALL_DARWIN
33 #ifdef TCG_TARGET_CALL_DARWIN
34 #define LINKAGE_AREA_SIZE 24
36 #elif defined _CALL_AIX
37 #define LINKAGE_AREA_SIZE 52
40 #define LINKAGE_AREA_SIZE 8
48 #ifdef CONFIG_USE_GUEST_BASE
49 #define TCG_GUEST_BASE_REG 30
51 #define TCG_GUEST_BASE_REG 0
55 static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
91 static const int tcg_target_reg_alloc_order[] = {
106 #ifdef TCG_TARGET_CALL_DARWIN
117 #ifndef TCG_TARGET_CALL_DARWIN
130 static const int tcg_target_call_iarg_regs[] = {
141 static const int tcg_target_call_oarg_regs[2] = {
146 static const int tcg_target_callee_save_regs[] = {
147 #ifdef TCG_TARGET_CALL_DARWIN
167 TCG_REG_R27, /* currently used for the global env */
174 static inline bool in_range_b(tcg_target_long target)
176 return target == sextract32(target, 0, 26);
179 static uint32_t reloc_pc24_val(tcg_insn_unit *pc, tcg_insn_unit *target)
181 ptrdiff_t disp = tcg_ptr_byte_diff(target, pc);
182 assert(in_range_b(disp));
183 return disp & 0x3fffffc;
186 static void reloc_pc24(tcg_insn_unit *pc, tcg_insn_unit *target)
188 *pc = (*pc & ~0x3fffffc) | reloc_pc24_val(pc, target);
191 static uint16_t reloc_pc14_val(tcg_insn_unit *pc, tcg_insn_unit *target)
193 ptrdiff_t disp = tcg_ptr_byte_diff(target, pc);
194 assert(disp == (int16_t) disp);
195 return disp & 0xfffc;
198 static void reloc_pc14(tcg_insn_unit *pc, tcg_insn_unit *target)
200 *pc = (*pc & ~0xfffc) | reloc_pc14_val(pc, target);
203 static void patch_reloc(tcg_insn_unit *code_ptr, int type,
204 intptr_t value, intptr_t addend)
206 tcg_insn_unit *target = (tcg_insn_unit *)value;
211 reloc_pc14(code_ptr, target);
214 reloc_pc24(code_ptr, target);
221 /* parse target specific constraints */
222 static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
228 case 'A': case 'B': case 'C': case 'D':
229 ct->ct |= TCG_CT_REG;
230 tcg_regset_set_reg(ct->u.regs, 3 + ct_str[0] - 'A');
233 ct->ct |= TCG_CT_REG;
234 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
236 #ifdef CONFIG_SOFTMMU
237 case 'L': /* qemu_ld constraint */
238 ct->ct |= TCG_CT_REG;
239 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
240 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
241 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
242 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5);
243 #if TARGET_LONG_BITS == 64
244 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R6);
245 #ifdef TCG_TARGET_CALL_ALIGN_ARGS
246 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R7);
250 case 'K': /* qemu_st[8..32] constraint */
251 ct->ct |= TCG_CT_REG;
252 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
253 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
254 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
255 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5);
256 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R6);
257 #if TARGET_LONG_BITS == 64
258 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R7);
259 #ifdef TCG_TARGET_CALL_ALIGN_ARGS
260 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R8);
264 case 'M': /* qemu_st64 constraint */
265 ct->ct |= TCG_CT_REG;
266 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
267 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
268 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
269 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5);
270 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R6);
271 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R7);
272 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R8);
273 #ifdef TCG_TARGET_CALL_ALIGN_ARGS
274 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R9);
280 ct->ct |= TCG_CT_REG;
281 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
284 ct->ct |= TCG_CT_REG;
285 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
286 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
297 /* test if a constant matches the constraint */
298 static int tcg_target_const_match(tcg_target_long val, TCGType type,
299 const TCGArgConstraint *arg_ct)
304 if (ct & TCG_CT_CONST)
309 #define OPCD(opc) ((opc)<<26)
310 #define XO31(opc) (OPCD(31)|((opc)<<1))
311 #define XO19(opc) (OPCD(19)|((opc)<<1))
323 #define ADDIC OPCD(12)
324 #define ADDI OPCD(14)
325 #define ADDIS OPCD(15)
327 #define ORIS OPCD(25)
328 #define XORI OPCD(26)
329 #define XORIS OPCD(27)
330 #define ANDI OPCD(28)
331 #define ANDIS OPCD(29)
332 #define MULLI OPCD( 7)
333 #define CMPLI OPCD(10)
334 #define CMPI OPCD(11)
335 #define SUBFIC OPCD( 8)
337 #define LWZU OPCD(33)
338 #define STWU OPCD(37)
340 #define RLWIMI OPCD(20)
341 #define RLWINM OPCD(21)
342 #define RLWNM OPCD(23)
344 #define BCLR XO19( 16)
345 #define BCCTR XO19(528)
346 #define CRAND XO19(257)
347 #define CRANDC XO19(129)
348 #define CRNAND XO19(225)
349 #define CROR XO19(449)
350 #define CRNOR XO19( 33)
352 #define EXTSB XO31(954)
353 #define EXTSH XO31(922)
354 #define ADD XO31(266)
355 #define ADDE XO31(138)
356 #define ADDC XO31( 10)
357 #define AND XO31( 28)
358 #define SUBF XO31( 40)
359 #define SUBFC XO31( 8)
360 #define SUBFE XO31(136)
362 #define XOR XO31(316)
363 #define MULLW XO31(235)
364 #define MULHWU XO31( 11)
365 #define DIVW XO31(491)
366 #define DIVWU XO31(459)
368 #define CMPL XO31( 32)
369 #define LHBRX XO31(790)
370 #define LWBRX XO31(534)
371 #define STHBRX XO31(918)
372 #define STWBRX XO31(662)
373 #define MFSPR XO31(339)
374 #define MTSPR XO31(467)
375 #define SRAWI XO31(824)
376 #define NEG XO31(104)
377 #define MFCR XO31( 19)
378 #define CNTLZW XO31( 26)
379 #define NOR XO31(124)
380 #define ANDC XO31( 60)
381 #define ORC XO31(412)
382 #define EQV XO31(284)
383 #define NAND XO31(476)
384 #define ISEL XO31( 15)
386 #define LBZX XO31( 87)
387 #define LHZX XO31(279)
388 #define LHAX XO31(343)
389 #define LWZX XO31( 23)
390 #define STBX XO31(215)
391 #define STHX XO31(407)
392 #define STWX XO31(151)
394 #define SPR(a,b) ((((a)<<5)|(b))<<11)
396 #define CTR SPR(9, 0)
398 #define SLW XO31( 24)
399 #define SRW XO31(536)
400 #define SRAW XO31(792)
403 #define TRAP (TW | TO (31))
405 #define RT(r) ((r)<<21)
406 #define RS(r) ((r)<<21)
407 #define RA(r) ((r)<<16)
408 #define RB(r) ((r)<<11)
409 #define TO(t) ((t)<<21)
410 #define SH(s) ((s)<<11)
411 #define MB(b) ((b)<<6)
412 #define ME(e) ((e)<<1)
413 #define BO(o) ((o)<<21)
417 #define TAB(t,a,b) (RT(t) | RA(a) | RB(b))
418 #define SAB(s,a,b) (RS(s) | RA(a) | RB(b))
420 #define BF(n) ((n)<<23)
421 #define BI(n, c) (((c)+((n)*4))<<16)
422 #define BT(n, c) (((c)+((n)*4))<<21)
423 #define BA(n, c) (((c)+((n)*4))<<16)
424 #define BB(n, c) (((c)+((n)*4))<<11)
426 #define BO_COND_TRUE BO (12)
427 #define BO_COND_FALSE BO (4)
428 #define BO_ALWAYS BO (20)
437 static const uint32_t tcg_to_bc[] = {
438 [TCG_COND_EQ] = BC | BI (7, CR_EQ) | BO_COND_TRUE,
439 [TCG_COND_NE] = BC | BI (7, CR_EQ) | BO_COND_FALSE,
440 [TCG_COND_LT] = BC | BI (7, CR_LT) | BO_COND_TRUE,
441 [TCG_COND_GE] = BC | BI (7, CR_LT) | BO_COND_FALSE,
442 [TCG_COND_LE] = BC | BI (7, CR_GT) | BO_COND_FALSE,
443 [TCG_COND_GT] = BC | BI (7, CR_GT) | BO_COND_TRUE,
444 [TCG_COND_LTU] = BC | BI (7, CR_LT) | BO_COND_TRUE,
445 [TCG_COND_GEU] = BC | BI (7, CR_LT) | BO_COND_FALSE,
446 [TCG_COND_LEU] = BC | BI (7, CR_GT) | BO_COND_FALSE,
447 [TCG_COND_GTU] = BC | BI (7, CR_GT) | BO_COND_TRUE,
450 static void tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg)
453 tcg_out32(s, OR | SAB(arg, ret, arg));
457 static void tcg_out_movi(TCGContext *s, TCGType type,
458 TCGReg ret, tcg_target_long arg)
460 if (arg == (int16_t) arg)
461 tcg_out32 (s, ADDI | RT (ret) | RA (0) | (arg & 0xffff));
463 tcg_out32 (s, ADDIS | RT (ret) | RA (0) | ((arg >> 16) & 0xffff));
465 tcg_out32 (s, ORI | RS (ret) | RA (ret) | (arg & 0xffff));
469 static void tcg_out_ldst (TCGContext *s, int ret, int addr,
470 int offset, int op1, int op2)
472 if (offset == (int16_t) offset)
473 tcg_out32 (s, op1 | RT (ret) | RA (addr) | (offset & 0xffff));
475 tcg_out_movi (s, TCG_TYPE_I32, 0, offset);
476 tcg_out32 (s, op2 | RT (ret) | RA (addr) | RB (0));
480 static void tcg_out_b(TCGContext *s, int mask, tcg_insn_unit *target)
482 ptrdiff_t disp = tcg_pcrel_diff(s, target);
483 if (in_range_b(disp)) {
484 tcg_out32(s, B | (disp & 0x3fffffc) | mask);
486 tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R0, (uintptr_t)target);
487 tcg_out32(s, MTSPR | RS(TCG_REG_R0) | CTR);
488 tcg_out32(s, BCCTR | BO_ALWAYS | mask);
492 static void tcg_out_call1(TCGContext *s, tcg_insn_unit *target, int lk)
495 tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R2, (uintptr_t)target);
496 tcg_out32(s, LWZ | RT(TCG_REG_R0) | RA(reg));
497 tcg_out32(s, MTSPR | RA(TCG_REG_R0) | CTR);
498 tcg_out32(s, LWZ | RT(TCG_REG_R2) | RA(reg) | 4);
499 tcg_out32(s, BCCTR | BO_ALWAYS | lk);
501 tcg_out_b(s, lk, target);
505 static void tcg_out_call(TCGContext *s, tcg_insn_unit *target)
507 tcg_out_call1(s, target, LK);
510 #if defined(CONFIG_SOFTMMU)
512 static void add_qemu_ldst_label (TCGContext *s,
520 tcg_insn_unit *raddr,
521 tcg_insn_unit *label_ptr)
523 TCGLabelQemuLdst *label = new_ldst_label(s);
525 label->is_ld = is_ld;
527 label->datalo_reg = data_reg;
528 label->datahi_reg = data_reg2;
529 label->addrlo_reg = addrlo_reg;
530 label->addrhi_reg = addrhi_reg;
531 label->mem_index = mem_index;
532 label->raddr = raddr;
533 label->label_ptr[0] = label_ptr;
536 /* helper signature: helper_ret_ld_mmu(CPUState *env, target_ulong addr,
537 * int mmu_idx, uintptr_t ra)
539 static void * const qemu_ld_helpers[16] = {
540 [MO_UB] = helper_ret_ldub_mmu,
541 [MO_LEUW] = helper_le_lduw_mmu,
542 [MO_LEUL] = helper_le_ldul_mmu,
543 [MO_LEQ] = helper_le_ldq_mmu,
544 [MO_BEUW] = helper_be_lduw_mmu,
545 [MO_BEUL] = helper_be_ldul_mmu,
546 [MO_BEQ] = helper_be_ldq_mmu,
549 /* helper signature: helper_ret_st_mmu(CPUState *env, target_ulong addr,
550 * uintxx_t val, int mmu_idx, uintptr_t ra)
552 static void * const qemu_st_helpers[16] = {
553 [MO_UB] = helper_ret_stb_mmu,
554 [MO_LEUW] = helper_le_stw_mmu,
555 [MO_LEUL] = helper_le_stl_mmu,
556 [MO_LEQ] = helper_le_stq_mmu,
557 [MO_BEUW] = helper_be_stw_mmu,
558 [MO_BEUL] = helper_be_stl_mmu,
559 [MO_BEQ] = helper_be_stq_mmu,
562 static tcg_insn_unit *ld_trampolines[16];
563 static tcg_insn_unit *st_trampolines[16];
565 /* Perform the TLB load and compare. Branches to the slow path, placing the
566 address of the branch in *LABEL_PTR. Loads the addend of the TLB into R0.
567 Clobbers R1 and R2. */
569 static void tcg_out_tlb_check(TCGContext *s, TCGReg r0, TCGReg r1, TCGReg r2,
570 TCGReg addrlo, TCGReg addrhi, TCGMemOp s_bits,
571 int mem_index, int is_load,
572 tcg_insn_unit **label_ptr)
576 ? offsetof(CPUArchState, tlb_table[mem_index][0].addr_read)
577 : offsetof(CPUArchState, tlb_table[mem_index][0].addr_write));
578 int add_off = offsetof(CPUArchState, tlb_table[mem_index][0].addend);
579 tcg_insn_unit retranst;
580 TCGReg base = TCG_AREG0;
582 /* Extract the page index, shifted into place for tlb index. */
586 | SH(32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS))
587 | MB(32 - (CPU_TLB_BITS + CPU_TLB_ENTRY_BITS))
588 | ME(31 - CPU_TLB_ENTRY_BITS)));
590 /* Compensate for very large offsets. */
591 if (add_off >= 0x8000) {
592 /* Most target env are smaller than 32k; none are larger than 64k.
593 Simplify the logic here merely to offset by 0x7ff0, giving us a
594 range just shy of 64k. Check this assumption. */
595 QEMU_BUILD_BUG_ON(offsetof(CPUArchState,
596 tlb_table[NB_MMU_MODES - 1][1])
598 tcg_out32(s, ADDI | RT(r1) | RA(base) | 0x7ff0);
604 /* Clear the non-page, non-alignment bits from the address. */
609 | MB((32 - s_bits) & 31)
610 | ME(31 - TARGET_PAGE_BITS)));
612 tcg_out32(s, ADD | RT(r0) | RA(r0) | RB(base));
615 /* Load the tlb comparator. */
616 tcg_out32(s, LWZ | RT(r1) | RA(base) | (cmp_off & 0xffff));
618 tcg_out32(s, CMP | BF(7) | RA(r2) | RB(r1));
620 if (TARGET_LONG_BITS == 64) {
621 tcg_out32(s, LWZ | RT(r1) | RA(base) | ((cmp_off + 4) & 0xffff));
624 /* Load the tlb addend for use on the fast path.
625 Do this asap to minimize load delay. */
626 tcg_out32(s, LWZ | RT(r0) | RA(base) | (add_off & 0xffff));
628 if (TARGET_LONG_BITS == 64) {
629 tcg_out32(s, CMP | BF(6) | RA(addrhi) | RB(r1));
630 tcg_out32(s, CRAND | BT(7, CR_EQ) | BA(6, CR_EQ) | BB(7, CR_EQ));
633 /* Use a conditional branch-and-link so that we load a pointer to
634 somewhere within the current opcode, for passing on to the helper.
635 This address cannot be used for a tail call, but it's shorter
636 than forming an address from scratch. */
637 *label_ptr = s->code_ptr;
638 retranst = *s->code_ptr & 0xfffc;
639 tcg_out32(s, BC | BI(7, CR_EQ) | retranst | BO_COND_FALSE | LK);
643 static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
645 TCGReg addrlo, datalo, datahi, rbase, addrhi __attribute__((unused));
647 #ifdef CONFIG_SOFTMMU
649 tcg_insn_unit *label_ptr;
653 datahi = (is64 ? *args++ : 0);
655 addrhi = (TARGET_LONG_BITS == 64 ? *args++ : 0);
657 bswap = opc & MO_BSWAP;
659 #ifdef CONFIG_SOFTMMU
661 tcg_out_tlb_check(s, TCG_REG_R3, TCG_REG_R4, TCG_REG_R0, addrlo,
662 addrhi, opc & MO_SIZE, mem_index, 0, &label_ptr);
664 #else /* !CONFIG_SOFTMMU */
665 rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
668 switch (opc & MO_SSIZE) {
671 tcg_out32(s, LBZX | TAB(datalo, rbase, addrlo));
674 tcg_out32(s, LBZX | TAB(datalo, rbase, addrlo));
675 tcg_out32(s, EXTSB | RA(datalo) | RS(datalo));
678 tcg_out32(s, (bswap ? LHBRX : LHZX) | TAB(datalo, rbase, addrlo));
682 tcg_out32(s, LHBRX | TAB(datalo, rbase, addrlo));
683 tcg_out32(s, EXTSH | RA(datalo) | RS(datalo));
685 tcg_out32(s, LHAX | TAB(datalo, rbase, addrlo));
689 tcg_out32(s, (bswap ? LWBRX : LWZX) | TAB(datalo, rbase, addrlo));
693 tcg_out32(s, ADDI | RT(TCG_REG_R0) | RA(addrlo) | 4);
694 tcg_out32(s, LWBRX | TAB(datalo, rbase, addrlo));
695 tcg_out32(s, LWBRX | TAB(datahi, rbase, TCG_REG_R0));
696 } else if (rbase != 0) {
697 tcg_out32(s, ADDI | RT(TCG_REG_R0) | RA(addrlo) | 4);
698 tcg_out32(s, LWZX | TAB(datahi, rbase, addrlo));
699 tcg_out32(s, LWZX | TAB(datalo, rbase, TCG_REG_R0));
700 } else if (addrlo == datahi) {
701 tcg_out32(s, LWZ | RT(datalo) | RA(addrlo) | 4);
702 tcg_out32(s, LWZ | RT(datahi) | RA(addrlo));
704 tcg_out32(s, LWZ | RT(datahi) | RA(addrlo));
705 tcg_out32(s, LWZ | RT(datalo) | RA(addrlo) | 4);
709 #ifdef CONFIG_SOFTMMU
710 add_qemu_ldst_label(s, true, opc, datalo, datahi, addrlo,
711 addrhi, mem_index, s->code_ptr, label_ptr);
715 static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64)
717 TCGReg addrlo, datalo, datahi, rbase, addrhi __attribute__((unused));
718 TCGMemOp opc, bswap, s_bits;
719 #ifdef CONFIG_SOFTMMU
721 tcg_insn_unit *label_ptr;
725 datahi = (is64 ? *args++ : 0);
727 addrhi = (TARGET_LONG_BITS == 64 ? *args++ : 0);
729 bswap = opc & MO_BSWAP;
730 s_bits = opc & MO_SIZE;
732 #ifdef CONFIG_SOFTMMU
734 tcg_out_tlb_check(s, TCG_REG_R3, TCG_REG_R4, TCG_REG_R0, addrlo,
735 addrhi, s_bits, mem_index, 0, &label_ptr);
737 #else /* !CONFIG_SOFTMMU */
738 rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
743 tcg_out32(s, STBX | SAB(datalo, rbase, addrlo));
746 tcg_out32(s, (bswap ? STHBRX : STHX) | SAB(datalo, rbase, addrlo));
750 tcg_out32(s, (bswap ? STWBRX : STWX) | SAB(datalo, rbase, addrlo));
754 tcg_out32(s, ADDI | RT(TCG_REG_R0) | RA(addrlo) | 4);
755 tcg_out32(s, STWBRX | SAB(datalo, rbase, addrlo));
756 tcg_out32(s, STWBRX | SAB(datahi, rbase, TCG_REG_R0));
757 } else if (rbase != 0) {
758 tcg_out32(s, ADDI | RT(TCG_REG_R0) | RA(addrlo) | 4);
759 tcg_out32(s, STWX | SAB(datahi, rbase, addrlo));
760 tcg_out32(s, STWX | SAB(datalo, rbase, TCG_REG_R0));
762 tcg_out32(s, STW | RS(datahi) | RA(addrlo));
763 tcg_out32(s, STW | RS(datalo) | RA(addrlo) | 4);
768 #ifdef CONFIG_SOFTMMU
769 add_qemu_ldst_label(s, false, opc, datalo, datahi, addrlo, addrhi,
770 mem_index, s->code_ptr, label_ptr);
774 #if defined(CONFIG_SOFTMMU)
775 static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
777 TCGReg ir, datalo, datahi;
778 TCGMemOp opc = l->opc;
780 reloc_pc14(l->label_ptr[0], s->code_ptr);
783 if (TARGET_LONG_BITS == 32) {
784 tcg_out_mov(s, TCG_TYPE_I32, ir++, l->addrlo_reg);
786 #ifdef TCG_TARGET_CALL_ALIGN_ARGS
789 tcg_out_mov(s, TCG_TYPE_I32, ir++, l->addrhi_reg);
790 tcg_out_mov(s, TCG_TYPE_I32, ir++, l->addrlo_reg);
792 tcg_out_movi(s, TCG_TYPE_I32, ir++, l->mem_index);
793 tcg_out32(s, MFSPR | RT(ir++) | LR);
794 tcg_out_b(s, LK, ld_trampolines[opc & ~MO_SIGN]);
796 datalo = l->datalo_reg;
797 switch (opc & MO_SSIZE) {
799 tcg_out32(s, EXTSB | RA(datalo) | RS(TCG_REG_R3));
802 tcg_out32(s, EXTSH | RA(datalo) | RS(TCG_REG_R3));
805 tcg_out_mov(s, TCG_TYPE_I32, datalo, TCG_REG_R3);
808 datahi = l->datahi_reg;
809 if (datalo != TCG_REG_R3) {
810 tcg_out_mov(s, TCG_TYPE_I32, datalo, TCG_REG_R4);
811 tcg_out_mov(s, TCG_TYPE_I32, datahi, TCG_REG_R3);
812 } else if (datahi != TCG_REG_R4) {
813 tcg_out_mov(s, TCG_TYPE_I32, datahi, TCG_REG_R3);
814 tcg_out_mov(s, TCG_TYPE_I32, datalo, TCG_REG_R4);
816 tcg_out_mov(s, TCG_TYPE_I32, TCG_REG_R0, TCG_REG_R4);
817 tcg_out_mov(s, TCG_TYPE_I32, datahi, TCG_REG_R3);
818 tcg_out_mov(s, TCG_TYPE_I32, datalo, TCG_REG_R0);
822 tcg_out_b(s, 0, l->raddr);
825 static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
828 TCGMemOp opc = l->opc;
830 reloc_pc14(l->label_ptr[0], s->code_ptr);
833 if (TARGET_LONG_BITS == 32) {
834 tcg_out_mov (s, TCG_TYPE_I32, ir++, l->addrlo_reg);
836 #ifdef TCG_TARGET_CALL_ALIGN_ARGS
839 tcg_out_mov (s, TCG_TYPE_I32, ir++, l->addrhi_reg);
840 tcg_out_mov (s, TCG_TYPE_I32, ir++, l->addrlo_reg);
843 datalo = l->datalo_reg;
844 switch (opc & MO_SIZE) {
846 tcg_out32(s, (RLWINM | RA (ir) | RS (datalo)
847 | SH (0) | MB (24) | ME (31)));
850 tcg_out32(s, (RLWINM | RA (ir) | RS (datalo)
851 | SH (0) | MB (16) | ME (31)));
854 tcg_out_mov(s, TCG_TYPE_I32, ir, datalo);
857 #ifdef TCG_TARGET_CALL_ALIGN_ARGS
860 tcg_out_mov(s, TCG_TYPE_I32, ir++, l->datahi_reg);
861 tcg_out_mov(s, TCG_TYPE_I32, ir, datalo);
866 tcg_out_movi(s, TCG_TYPE_I32, ir++, l->mem_index);
867 tcg_out32(s, MFSPR | RT(ir++) | LR);
868 tcg_out_b(s, LK, st_trampolines[opc]);
869 tcg_out_b(s, 0, l->raddr);
873 #ifdef CONFIG_SOFTMMU
874 static void emit_ldst_trampoline(TCGContext *s, tcg_insn_unit *ptr)
876 tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_R3, TCG_AREG0);
877 tcg_out_call1(s, ptr, 0);
881 static void tcg_target_qemu_prologue (TCGContext *s)
887 + TCG_STATIC_CALL_ARGS_SIZE
888 + ARRAY_SIZE (tcg_target_callee_save_regs) * 4
889 + CPU_TEMP_BUF_NLONGS * sizeof(long)
891 frame_size = (frame_size + 15) & ~15;
893 tcg_set_frame(s, TCG_REG_CALL_STACK, frame_size
894 - CPU_TEMP_BUF_NLONGS * sizeof(long),
895 CPU_TEMP_BUF_NLONGS * sizeof(long));
901 /* First emit adhoc function descriptor */
902 addr = (uintptr_t)s->code_ptr + 12;
903 tcg_out32(s, addr); /* entry point */
904 tcg_out32(s, 0); /* toc */
905 tcg_out32(s, 0); /* environment pointer */
908 tcg_out32 (s, MFSPR | RT (0) | LR);
909 tcg_out32 (s, STWU | RS (1) | RA (1) | (-frame_size & 0xffff));
910 for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i)
912 | RS (tcg_target_callee_save_regs[i])
914 | (i * 4 + LINKAGE_AREA_SIZE + TCG_STATIC_CALL_ARGS_SIZE)
917 tcg_out32 (s, STW | RS (0) | RA (1) | (frame_size + LR_OFFSET));
919 #ifdef CONFIG_USE_GUEST_BASE
921 tcg_out_movi (s, TCG_TYPE_I32, TCG_GUEST_BASE_REG, GUEST_BASE);
922 tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
926 tcg_out_mov (s, TCG_TYPE_PTR, TCG_AREG0, tcg_target_call_iarg_regs[0]);
927 tcg_out32 (s, MTSPR | RS (tcg_target_call_iarg_regs[1]) | CTR);
928 tcg_out32 (s, BCCTR | BO_ALWAYS);
929 tb_ret_addr = s->code_ptr;
931 for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i)
933 | RT (tcg_target_callee_save_regs[i])
935 | (i * 4 + LINKAGE_AREA_SIZE + TCG_STATIC_CALL_ARGS_SIZE)
938 tcg_out32 (s, LWZ | RT (0) | RA (1) | (frame_size + LR_OFFSET));
939 tcg_out32 (s, MTSPR | RS (0) | LR);
940 tcg_out32 (s, ADDI | RT (1) | RA (1) | frame_size);
941 tcg_out32 (s, BCLR | BO_ALWAYS);
943 #ifdef CONFIG_SOFTMMU
944 for (i = 0; i < 16; ++i) {
945 if (qemu_ld_helpers[i]) {
946 ld_trampolines[i] = s->code_ptr;
947 emit_ldst_trampoline(s, qemu_ld_helpers[i]);
949 if (qemu_st_helpers[i]) {
950 st_trampolines[i] = s->code_ptr;
951 emit_ldst_trampoline(s, qemu_st_helpers[i]);
957 static void tcg_out_ld(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg1,
960 tcg_out_ldst (s, ret, arg1, arg2, LWZ, LWZX);
963 static void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg, TCGReg arg1,
966 tcg_out_ldst (s, arg, arg1, arg2, STW, STWX);
969 static void ppc_addi (TCGContext *s, int rt, int ra, tcg_target_long si)
974 if (si == (int16_t) si)
975 tcg_out32 (s, ADDI | RT (rt) | RA (ra) | (si & 0xffff));
977 uint16_t h = ((si >> 16) & 0xffff) + ((uint16_t) si >> 15);
978 tcg_out32 (s, ADDIS | RT (rt) | RA (ra) | h);
979 tcg_out32 (s, ADDI | RT (rt) | RA (rt) | (si & 0xffff));
983 static void tcg_out_cmp (TCGContext *s, int cond, TCGArg arg1, TCGArg arg2,
984 int const_arg2, int cr)
993 if ((int16_t) arg2 == arg2) {
998 else if ((uint16_t) arg2 == arg2) {
1013 if ((int16_t) arg2 == arg2) {
1028 if ((uint16_t) arg2 == arg2) {
1044 tcg_out32 (s, op | RA (arg1) | (arg2 & 0xffff));
1047 tcg_out_movi (s, TCG_TYPE_I32, 0, arg2);
1048 tcg_out32 (s, op | RA (arg1) | RB (0));
1051 tcg_out32 (s, op | RA (arg1) | RB (arg2));
1056 static void tcg_out_bc(TCGContext *s, int bc, int label_index)
1058 TCGLabel *l = &s->labels[label_index];
1061 tcg_out32(s, bc | reloc_pc14_val(s->code_ptr, l->u.value_ptr));
1063 /* Thanks to Andrzej Zaborowski */
1064 tcg_insn_unit retrans = *s->code_ptr & 0xfffc;
1065 tcg_out_reloc(s, s->code_ptr, R_PPC_REL14, label_index, 0);
1066 tcg_out32(s, bc | retrans);
1070 static void tcg_out_cr7eq_from_cond (TCGContext *s, const TCGArg *args,
1071 const int *const_args)
1073 TCGCond cond = args[4];
1075 struct { int bit1; int bit2; int cond2; } bits[] = {
1076 [TCG_COND_LT ] = { CR_LT, CR_LT, TCG_COND_LT },
1077 [TCG_COND_LE ] = { CR_LT, CR_GT, TCG_COND_LT },
1078 [TCG_COND_GT ] = { CR_GT, CR_GT, TCG_COND_GT },
1079 [TCG_COND_GE ] = { CR_GT, CR_LT, TCG_COND_GT },
1080 [TCG_COND_LTU] = { CR_LT, CR_LT, TCG_COND_LTU },
1081 [TCG_COND_LEU] = { CR_LT, CR_GT, TCG_COND_LTU },
1082 [TCG_COND_GTU] = { CR_GT, CR_GT, TCG_COND_GTU },
1083 [TCG_COND_GEU] = { CR_GT, CR_LT, TCG_COND_GTU },
1084 }, *b = &bits[cond];
1089 op = (cond == TCG_COND_EQ) ? CRAND : CRNAND;
1090 tcg_out_cmp (s, cond, args[0], args[2], const_args[2], 6);
1091 tcg_out_cmp (s, cond, args[1], args[3], const_args[3], 7);
1092 tcg_out32 (s, op | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, CR_EQ));
1102 op = (b->bit1 != b->bit2) ? CRANDC : CRAND;
1103 tcg_out_cmp (s, b->cond2, args[1], args[3], const_args[3], 5);
1104 tcg_out_cmp (s, tcg_unsigned_cond (cond), args[0], args[2],
1106 tcg_out32 (s, op | BT (7, CR_EQ) | BA (5, CR_EQ) | BB (7, b->bit2));
1107 tcg_out32 (s, CROR | BT (7, CR_EQ) | BA (5, b->bit1) | BB (7, CR_EQ));
1114 static void tcg_out_setcond (TCGContext *s, TCGCond cond, TCGArg arg0,
1115 TCGArg arg1, TCGArg arg2, int const_arg2)
1127 if ((uint16_t) arg2 == arg2) {
1128 tcg_out32 (s, XORI | RS (arg1) | RA (0) | arg2);
1131 tcg_out_movi (s, TCG_TYPE_I32, 0, arg2);
1132 tcg_out32 (s, XOR | SAB (arg1, 0, 0));
1138 tcg_out32 (s, XOR | SAB (arg1, 0, arg2));
1140 tcg_out32 (s, CNTLZW | RS (arg) | RA (0));
1141 tcg_out32 (s, (RLWINM
1158 if ((uint16_t) arg2 == arg2) {
1159 tcg_out32 (s, XORI | RS (arg1) | RA (0) | arg2);
1162 tcg_out_movi (s, TCG_TYPE_I32, 0, arg2);
1163 tcg_out32 (s, XOR | SAB (arg1, 0, 0));
1169 tcg_out32 (s, XOR | SAB (arg1, 0, arg2));
1172 if (arg == arg1 && arg1 == arg0) {
1173 tcg_out32 (s, ADDIC | RT (0) | RA (arg) | 0xffff);
1174 tcg_out32 (s, SUBFE | TAB (arg0, 0, arg));
1177 tcg_out32 (s, ADDIC | RT (arg0) | RA (arg) | 0xffff);
1178 tcg_out32 (s, SUBFE | TAB (arg0, arg0, arg));
1197 crop = CRNOR | BT (7, CR_EQ) | BA (7, CR_LT) | BB (7, CR_LT);
1203 crop = CRNOR | BT (7, CR_EQ) | BA (7, CR_GT) | BB (7, CR_GT);
1205 tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7);
1206 if (crop) tcg_out32 (s, crop);
1207 tcg_out32 (s, MFCR | RT (0));
1208 tcg_out32 (s, (RLWINM
1223 static void tcg_out_setcond2 (TCGContext *s, const TCGArg *args,
1224 const int *const_args)
1226 tcg_out_cr7eq_from_cond (s, args + 1, const_args + 1);
1227 tcg_out32 (s, MFCR | RT (0));
1228 tcg_out32 (s, (RLWINM
1238 static void tcg_out_movcond (TCGContext *s, TCGCond cond,
1240 TCGArg c1, TCGArg c2,
1241 TCGArg v1, TCGArg v2,
1244 tcg_out_cmp (s, cond, c1, c2, const_c2, 7);
1247 /* At least here on 7747A bit twiddling hacks are outperformed
1248 by jumpy code (the testing was not scientific) */
1250 cond = tcg_invert_cond (cond);
1255 tcg_out_mov (s, TCG_TYPE_I32, dest, v1);
1258 /* Branch forward over one insn */
1259 tcg_out32 (s, tcg_to_bc[cond] | 8);
1260 tcg_out_mov (s, TCG_TYPE_I32, dest, v2);
1263 /* isel version, "if (1)" above should be replaced once a way
1264 to figure out availability of isel on the underlying
1265 hardware is found */
1270 tab = TAB (dest, v1, v2);
1274 tab = TAB (dest, v2, v1);
1279 tab = TAB (dest, v1, v2);
1284 tab = TAB (dest, v2, v1);
1289 tab = TAB (dest, v2, v1);
1294 tab = TAB (dest, v1, v2);
1300 tcg_out32 (s, ISEL | tab | ((bc + 28) << 6));
1304 static void tcg_out_brcond (TCGContext *s, TCGCond cond,
1305 TCGArg arg1, TCGArg arg2, int const_arg2,
1308 tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7);
1309 tcg_out_bc (s, tcg_to_bc[cond], label_index);
1312 /* XXX: we implement it at the target level to avoid having to
1313 handle cross basic blocks temporaries */
1314 static void tcg_out_brcond2 (TCGContext *s, const TCGArg *args,
1315 const int *const_args)
1317 tcg_out_cr7eq_from_cond (s, args, const_args);
1318 tcg_out_bc (s, (BC | BI (7, CR_EQ) | BO_COND_TRUE), args[5]);
1321 void ppc_tb_set_jmp_target (uintptr_t jmp_addr, uintptr_t addr)
1324 long disp = addr - jmp_addr;
1325 unsigned long patch_size;
1327 ptr = (uint32_t *)jmp_addr;
1329 if ((disp << 6) >> 6 != disp) {
1330 ptr[0] = 0x3c000000 | (addr >> 16); /* lis 0,addr@ha */
1331 ptr[1] = 0x60000000 | (addr & 0xffff); /* la 0,addr@l(0) */
1332 ptr[2] = 0x7c0903a6; /* mtctr 0 */
1333 ptr[3] = 0x4e800420; /* brctr */
1336 /* patch the branch destination */
1338 *ptr = 0x48000000 | (disp & 0x03fffffc); /* b disp */
1341 ptr[0] = 0x60000000; /* nop */
1342 ptr[1] = 0x60000000;
1343 ptr[2] = 0x60000000;
1344 ptr[3] = 0x60000000;
1349 flush_icache_range(jmp_addr, jmp_addr + patch_size);
1352 static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,
1353 const int *const_args)
1356 case INDEX_op_exit_tb:
1357 tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R3, args[0]);
1358 tcg_out_b(s, 0, tb_ret_addr);
1360 case INDEX_op_goto_tb:
1361 if (s->tb_jmp_offset) {
1362 /* direct jump method */
1363 s->tb_jmp_offset[args[0]] = tcg_current_code_size(s);
1368 s->tb_next_offset[args[0]] = tcg_current_code_size(s);
1372 TCGLabel *l = &s->labels[args[0]];
1375 tcg_out_b(s, 0, l->u.value_ptr);
1377 /* Thanks to Andrzej Zaborowski */
1378 tcg_insn_unit retrans = *s->code_ptr & 0x3fffffc;
1379 tcg_out_reloc(s, s->code_ptr, R_PPC_REL24, args[0], 0);
1380 tcg_out32(s, B | retrans);
1384 case INDEX_op_ld8u_i32:
1385 tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX);
1387 case INDEX_op_ld8s_i32:
1388 tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX);
1389 tcg_out32 (s, EXTSB | RS (args[0]) | RA (args[0]));
1391 case INDEX_op_ld16u_i32:
1392 tcg_out_ldst (s, args[0], args[1], args[2], LHZ, LHZX);
1394 case INDEX_op_ld16s_i32:
1395 tcg_out_ldst (s, args[0], args[1], args[2], LHA, LHAX);
1397 case INDEX_op_ld_i32:
1398 tcg_out_ldst (s, args[0], args[1], args[2], LWZ, LWZX);
1400 case INDEX_op_st8_i32:
1401 tcg_out_ldst (s, args[0], args[1], args[2], STB, STBX);
1403 case INDEX_op_st16_i32:
1404 tcg_out_ldst (s, args[0], args[1], args[2], STH, STHX);
1406 case INDEX_op_st_i32:
1407 tcg_out_ldst (s, args[0], args[1], args[2], STW, STWX);
1410 case INDEX_op_add_i32:
1412 ppc_addi (s, args[0], args[1], args[2]);
1414 tcg_out32 (s, ADD | TAB (args[0], args[1], args[2]));
1416 case INDEX_op_sub_i32:
1418 ppc_addi (s, args[0], args[1], -args[2]);
1420 tcg_out32 (s, SUBF | TAB (args[0], args[2], args[1]));
1423 case INDEX_op_and_i32:
1424 if (const_args[2]) {
1430 tcg_out_movi (s, TCG_TYPE_I32, args[0], 0);
1440 if ((t & (t - 1)) == 0) {
1443 if ((c & 0x80000001) == 0x80000001) {
1458 tcg_out32 (s, (RLWINM
1468 #endif /* !__PPU__ */
1470 if ((c & 0xffff) == c)
1471 tcg_out32 (s, ANDI | RS (args[1]) | RA (args[0]) | c);
1472 else if ((c & 0xffff0000) == c)
1473 tcg_out32 (s, ANDIS | RS (args[1]) | RA (args[0])
1474 | ((c >> 16) & 0xffff));
1476 tcg_out_movi (s, TCG_TYPE_I32, 0, c);
1477 tcg_out32 (s, AND | SAB (args[1], args[0], 0));
1482 tcg_out32 (s, AND | SAB (args[1], args[0], args[2]));
1484 case INDEX_op_or_i32:
1485 if (const_args[2]) {
1486 if (args[2] & 0xffff) {
1487 tcg_out32 (s, ORI | RS (args[1]) | RA (args[0])
1488 | (args[2] & 0xffff));
1490 tcg_out32 (s, ORIS | RS (args[0]) | RA (args[0])
1491 | ((args[2] >> 16) & 0xffff));
1494 tcg_out32 (s, ORIS | RS (args[1]) | RA (args[0])
1495 | ((args[2] >> 16) & 0xffff));
1499 tcg_out32 (s, OR | SAB (args[1], args[0], args[2]));
1501 case INDEX_op_xor_i32:
1502 if (const_args[2]) {
1503 if ((args[2] & 0xffff) == args[2])
1504 tcg_out32 (s, XORI | RS (args[1]) | RA (args[0])
1505 | (args[2] & 0xffff));
1506 else if ((args[2] & 0xffff0000) == args[2])
1507 tcg_out32 (s, XORIS | RS (args[1]) | RA (args[0])
1508 | ((args[2] >> 16) & 0xffff));
1510 tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]);
1511 tcg_out32 (s, XOR | SAB (args[1], args[0], 0));
1515 tcg_out32 (s, XOR | SAB (args[1], args[0], args[2]));
1517 case INDEX_op_andc_i32:
1518 tcg_out32 (s, ANDC | SAB (args[1], args[0], args[2]));
1520 case INDEX_op_orc_i32:
1521 tcg_out32 (s, ORC | SAB (args[1], args[0], args[2]));
1523 case INDEX_op_eqv_i32:
1524 tcg_out32 (s, EQV | SAB (args[1], args[0], args[2]));
1526 case INDEX_op_nand_i32:
1527 tcg_out32 (s, NAND | SAB (args[1], args[0], args[2]));
1529 case INDEX_op_nor_i32:
1530 tcg_out32 (s, NOR | SAB (args[1], args[0], args[2]));
1533 case INDEX_op_mul_i32:
1534 if (const_args[2]) {
1535 if (args[2] == (int16_t) args[2])
1536 tcg_out32 (s, MULLI | RT (args[0]) | RA (args[1])
1537 | (args[2] & 0xffff));
1539 tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]);
1540 tcg_out32 (s, MULLW | TAB (args[0], args[1], 0));
1544 tcg_out32 (s, MULLW | TAB (args[0], args[1], args[2]));
1547 case INDEX_op_div_i32:
1548 tcg_out32 (s, DIVW | TAB (args[0], args[1], args[2]));
1551 case INDEX_op_divu_i32:
1552 tcg_out32 (s, DIVWU | TAB (args[0], args[1], args[2]));
1555 case INDEX_op_mulu2_i32:
1556 if (args[0] == args[2] || args[0] == args[3]) {
1557 tcg_out32 (s, MULLW | TAB (0, args[2], args[3]));
1558 tcg_out32 (s, MULHWU | TAB (args[1], args[2], args[3]));
1559 tcg_out_mov (s, TCG_TYPE_I32, args[0], 0);
1562 tcg_out32 (s, MULLW | TAB (args[0], args[2], args[3]));
1563 tcg_out32 (s, MULHWU | TAB (args[1], args[2], args[3]));
1567 case INDEX_op_shl_i32:
1568 if (const_args[2]) {
1569 tcg_out32 (s, (RLWINM
1579 tcg_out32 (s, SLW | SAB (args[1], args[0], args[2]));
1581 case INDEX_op_shr_i32:
1582 if (const_args[2]) {
1583 tcg_out32 (s, (RLWINM
1593 tcg_out32 (s, SRW | SAB (args[1], args[0], args[2]));
1595 case INDEX_op_sar_i32:
1597 tcg_out32 (s, SRAWI | RS (args[1]) | RA (args[0]) | SH (args[2]));
1599 tcg_out32 (s, SRAW | SAB (args[1], args[0], args[2]));
1601 case INDEX_op_rotl_i32:
1608 | (const_args[2] ? RLWINM | SH (args[2])
1609 : RLWNM | RB (args[2]))
1614 case INDEX_op_rotr_i32:
1615 if (const_args[2]) {
1617 tcg_out_mov (s, TCG_TYPE_I32, args[0], args[1]);
1620 tcg_out32 (s, RLWINM
1630 tcg_out32 (s, SUBFIC | RT (0) | RA (args[2]) | 32);
1641 case INDEX_op_add2_i32:
1642 if (args[0] == args[3] || args[0] == args[5]) {
1643 tcg_out32 (s, ADDC | TAB (0, args[2], args[4]));
1644 tcg_out32 (s, ADDE | TAB (args[1], args[3], args[5]));
1645 tcg_out_mov (s, TCG_TYPE_I32, args[0], 0);
1648 tcg_out32 (s, ADDC | TAB (args[0], args[2], args[4]));
1649 tcg_out32 (s, ADDE | TAB (args[1], args[3], args[5]));
1652 case INDEX_op_sub2_i32:
1653 if (args[0] == args[3] || args[0] == args[5]) {
1654 tcg_out32 (s, SUBFC | TAB (0, args[4], args[2]));
1655 tcg_out32 (s, SUBFE | TAB (args[1], args[5], args[3]));
1656 tcg_out_mov (s, TCG_TYPE_I32, args[0], 0);
1659 tcg_out32 (s, SUBFC | TAB (args[0], args[4], args[2]));
1660 tcg_out32 (s, SUBFE | TAB (args[1], args[5], args[3]));
1664 case INDEX_op_brcond_i32:
1669 args[3] = r1 is const
1670 args[4] = label_index
1672 tcg_out_brcond (s, args[2], args[0], args[1], const_args[1], args[3]);
1674 case INDEX_op_brcond2_i32:
1675 tcg_out_brcond2(s, args, const_args);
1678 case INDEX_op_neg_i32:
1679 tcg_out32 (s, NEG | RT (args[0]) | RA (args[1]));
1682 case INDEX_op_not_i32:
1683 tcg_out32 (s, NOR | SAB (args[1], args[0], args[1]));
1686 case INDEX_op_qemu_ld_i32:
1687 tcg_out_qemu_ld(s, args, 0);
1689 case INDEX_op_qemu_ld_i64:
1690 tcg_out_qemu_ld(s, args, 1);
1692 case INDEX_op_qemu_st_i32:
1693 tcg_out_qemu_st(s, args, 0);
1695 case INDEX_op_qemu_st_i64:
1696 tcg_out_qemu_st(s, args, 1);
1699 case INDEX_op_ext8s_i32:
1700 tcg_out32 (s, EXTSB | RS (args[1]) | RA (args[0]));
1702 case INDEX_op_ext8u_i32:
1703 tcg_out32 (s, RLWINM
1711 case INDEX_op_ext16s_i32:
1712 tcg_out32 (s, EXTSH | RS (args[1]) | RA (args[0]));
1714 case INDEX_op_ext16u_i32:
1715 tcg_out32 (s, RLWINM
1724 case INDEX_op_setcond_i32:
1725 tcg_out_setcond (s, args[3], args[0], args[1], args[2], const_args[2]);
1727 case INDEX_op_setcond2_i32:
1728 tcg_out_setcond2 (s, args, const_args);
1731 case INDEX_op_bswap16_i32:
1732 /* Stolen from gcc's builtin_bswap16 */
1736 /* r0 = (a1 << 8) & 0xff00 # 00d0 */
1737 tcg_out32 (s, RLWINM
1745 /* a0 = rotate_left (a1, 24) & 0xff # 000c */
1746 tcg_out32 (s, RLWINM
1754 /* a0 = a0 | r0 # 00dc */
1755 tcg_out32 (s, OR | SAB (0, args[0], args[0]));
1758 case INDEX_op_bswap32_i32:
1759 /* Stolen from gcc's builtin_bswap32 */
1763 /* a1 = args[1] # abcd */
1765 if (a0 == args[1]) {
1769 /* a0 = rotate_left (a1, 8) # bcda */
1770 tcg_out32 (s, RLWINM
1778 /* a0 = (a0 & ~0xff000000) | ((a1 << 24) & 0xff000000) # dcda */
1779 tcg_out32 (s, RLWIMI
1787 /* a0 = (a0 & ~0x0000ff00) | ((a1 << 24) & 0x0000ff00) # dcba */
1788 tcg_out32 (s, RLWIMI
1797 tcg_out_mov (s, TCG_TYPE_I32, args[0], a0);
1802 case INDEX_op_deposit_i32:
1803 tcg_out32 (s, RLWIMI
1807 | MB (32 - args[3] - args[4])
1812 case INDEX_op_movcond_i32:
1813 tcg_out_movcond (s, args[5], args[0],
1819 case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
1820 case INDEX_op_movi_i32: /* Always emitted via tcg_out_movi. */
1821 case INDEX_op_call: /* Always emitted via tcg_out_call. */
1827 static const TCGTargetOpDef ppc_op_defs[] = {
1828 { INDEX_op_exit_tb, { } },
1829 { INDEX_op_goto_tb, { } },
1830 { INDEX_op_br, { } },
1832 { INDEX_op_ld8u_i32, { "r", "r" } },
1833 { INDEX_op_ld8s_i32, { "r", "r" } },
1834 { INDEX_op_ld16u_i32, { "r", "r" } },
1835 { INDEX_op_ld16s_i32, { "r", "r" } },
1836 { INDEX_op_ld_i32, { "r", "r" } },
1837 { INDEX_op_st8_i32, { "r", "r" } },
1838 { INDEX_op_st16_i32, { "r", "r" } },
1839 { INDEX_op_st_i32, { "r", "r" } },
1841 { INDEX_op_add_i32, { "r", "r", "ri" } },
1842 { INDEX_op_mul_i32, { "r", "r", "ri" } },
1843 { INDEX_op_div_i32, { "r", "r", "r" } },
1844 { INDEX_op_divu_i32, { "r", "r", "r" } },
1845 { INDEX_op_mulu2_i32, { "r", "r", "r", "r" } },
1846 { INDEX_op_sub_i32, { "r", "r", "ri" } },
1847 { INDEX_op_and_i32, { "r", "r", "ri" } },
1848 { INDEX_op_or_i32, { "r", "r", "ri" } },
1849 { INDEX_op_xor_i32, { "r", "r", "ri" } },
1851 { INDEX_op_shl_i32, { "r", "r", "ri" } },
1852 { INDEX_op_shr_i32, { "r", "r", "ri" } },
1853 { INDEX_op_sar_i32, { "r", "r", "ri" } },
1855 { INDEX_op_rotl_i32, { "r", "r", "ri" } },
1856 { INDEX_op_rotr_i32, { "r", "r", "ri" } },
1858 { INDEX_op_brcond_i32, { "r", "ri" } },
1860 { INDEX_op_add2_i32, { "r", "r", "r", "r", "r", "r" } },
1861 { INDEX_op_sub2_i32, { "r", "r", "r", "r", "r", "r" } },
1862 { INDEX_op_brcond2_i32, { "r", "r", "r", "r" } },
1864 { INDEX_op_neg_i32, { "r", "r" } },
1865 { INDEX_op_not_i32, { "r", "r" } },
1867 { INDEX_op_andc_i32, { "r", "r", "r" } },
1868 { INDEX_op_orc_i32, { "r", "r", "r" } },
1869 { INDEX_op_eqv_i32, { "r", "r", "r" } },
1870 { INDEX_op_nand_i32, { "r", "r", "r" } },
1871 { INDEX_op_nor_i32, { "r", "r", "r" } },
1873 { INDEX_op_setcond_i32, { "r", "r", "ri" } },
1874 { INDEX_op_setcond2_i32, { "r", "r", "r", "ri", "ri" } },
1876 { INDEX_op_bswap16_i32, { "r", "r" } },
1877 { INDEX_op_bswap32_i32, { "r", "r" } },
1879 #if TARGET_LONG_BITS == 32
1880 { INDEX_op_qemu_ld_i32, { "r", "L" } },
1881 { INDEX_op_qemu_ld_i64, { "L", "L", "L" } },
1882 { INDEX_op_qemu_st_i32, { "K", "K" } },
1883 { INDEX_op_qemu_st_i64, { "M", "M", "M" } },
1885 { INDEX_op_qemu_ld_i32, { "r", "L", "L" } },
1886 { INDEX_op_qemu_ld_i64, { "L", "L", "L", "L" } },
1887 { INDEX_op_qemu_st_i32, { "K", "K", "K" } },
1888 { INDEX_op_qemu_st_i64, { "M", "M", "M", "M" } },
1891 { INDEX_op_ext8s_i32, { "r", "r" } },
1892 { INDEX_op_ext8u_i32, { "r", "r" } },
1893 { INDEX_op_ext16s_i32, { "r", "r" } },
1894 { INDEX_op_ext16u_i32, { "r", "r" } },
1896 { INDEX_op_deposit_i32, { "r", "0", "r" } },
1897 { INDEX_op_movcond_i32, { "r", "r", "ri", "r", "r" } },
1902 static void tcg_target_init(TCGContext *s)
1904 tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff);
1905 tcg_regset_set32(tcg_target_call_clobber_regs, 0,
1907 #ifdef TCG_TARGET_CALL_DARWIN
1917 (1 << TCG_REG_R10) |
1918 (1 << TCG_REG_R11) |
1922 tcg_regset_clear(s->reserved_regs);
1923 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0);
1924 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1);
1925 #ifndef TCG_TARGET_CALL_DARWIN
1926 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R2);
1929 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R13);
1932 tcg_add_target_add_op_defs(ppc_op_defs);