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 static uint8_t *tb_ret_addr;
28 #define LINKAGE_AREA_SIZE 24
31 #define LINKAGE_AREA_SIZE 52
34 #define LINKAGE_AREA_SIZE 8
39 #if TARGET_PHYS_ADDR_BITS <= 32
40 #define ADDEND_OFFSET 0
42 #define ADDEND_OFFSET 4
49 #ifdef CONFIG_USE_GUEST_BASE
50 #define TCG_GUEST_BASE_REG 30
52 #define TCG_GUEST_BASE_REG 0
56 static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
92 static const int tcg_target_reg_alloc_order[] = {
131 static const int tcg_target_call_iarg_regs[] = {
142 static const int tcg_target_call_oarg_regs[2] = {
147 static const int tcg_target_callee_save_regs[] = {
168 /* TCG_REG_R27, */ /* currently used for the global env, so no
176 static uint32_t reloc_pc24_val (void *pc, tcg_target_long target)
178 tcg_target_long disp;
180 disp = target - (tcg_target_long) pc;
181 if ((disp << 6) >> 6 != disp)
184 return disp & 0x3fffffc;
187 static void reloc_pc24 (void *pc, tcg_target_long target)
189 *(uint32_t *) pc = (*(uint32_t *) pc & ~0x3fffffc)
190 | reloc_pc24_val (pc, target);
193 static uint16_t reloc_pc14_val (void *pc, tcg_target_long target)
195 tcg_target_long disp;
197 disp = target - (tcg_target_long) pc;
198 if (disp != (int16_t) disp)
201 return disp & 0xfffc;
204 static void reloc_pc14 (void *pc, tcg_target_long target)
206 *(uint32_t *) pc = (*(uint32_t *) pc & ~0xfffc)
207 | reloc_pc14_val (pc, target);
210 static void patch_reloc(uint8_t *code_ptr, int type,
211 tcg_target_long value, tcg_target_long addend)
216 reloc_pc14 (code_ptr, value);
219 reloc_pc24 (code_ptr, value);
226 /* maximum number of register used for input function arguments */
227 static int tcg_target_get_call_iarg_regs_count(int flags)
229 return ARRAY_SIZE (tcg_target_call_iarg_regs);
232 /* parse target specific constraints */
233 static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
239 case 'A': case 'B': case 'C': case 'D':
240 ct->ct |= TCG_CT_REG;
241 tcg_regset_set_reg(ct->u.regs, 3 + ct_str[0] - 'A');
244 ct->ct |= TCG_CT_REG;
245 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
247 #ifdef CONFIG_SOFTMMU
248 case 'L': /* qemu_ld constraint */
249 ct->ct |= TCG_CT_REG;
250 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
251 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
252 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
254 case 'K': /* qemu_st[8..32] constraint */
255 ct->ct |= TCG_CT_REG;
256 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
257 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
258 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
259 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5);
260 #if TARGET_LONG_BITS == 64
261 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R6);
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);
276 ct->ct |= TCG_CT_REG;
277 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
280 ct->ct |= TCG_CT_REG;
281 tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
282 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
293 /* test if a constant matches the constraint */
294 static int tcg_target_const_match(tcg_target_long val,
295 const TCGArgConstraint *arg_ct)
300 if (ct & TCG_CT_CONST)
305 #define OPCD(opc) ((opc)<<26)
306 #define XO31(opc) (OPCD(31)|((opc)<<1))
307 #define XO19(opc) (OPCD(19)|((opc)<<1))
319 #define ADDIC OPCD(12)
320 #define ADDI OPCD(14)
321 #define ADDIS OPCD(15)
323 #define ORIS OPCD(25)
324 #define XORI OPCD(26)
325 #define XORIS OPCD(27)
326 #define ANDI OPCD(28)
327 #define ANDIS OPCD(29)
328 #define MULLI OPCD( 7)
329 #define CMPLI OPCD(10)
330 #define CMPI OPCD(11)
332 #define LWZU OPCD(33)
333 #define STWU OPCD(37)
335 #define RLWINM OPCD(21)
337 #define BCLR XO19( 16)
338 #define BCCTR XO19(528)
339 #define CRAND XO19(257)
340 #define CRANDC XO19(129)
341 #define CRNAND XO19(225)
342 #define CROR XO19(449)
343 #define CRNOR XO19( 33)
345 #define EXTSB XO31(954)
346 #define EXTSH XO31(922)
347 #define ADD XO31(266)
348 #define ADDE XO31(138)
349 #define ADDC XO31( 10)
350 #define AND XO31( 28)
351 #define SUBF XO31( 40)
352 #define SUBFC XO31( 8)
353 #define SUBFE XO31(136)
355 #define XOR XO31(316)
356 #define MULLW XO31(235)
357 #define MULHWU XO31( 11)
358 #define DIVW XO31(491)
359 #define DIVWU XO31(459)
361 #define CMPL XO31( 32)
362 #define LHBRX XO31(790)
363 #define LWBRX XO31(534)
364 #define STHBRX XO31(918)
365 #define STWBRX XO31(662)
366 #define MFSPR XO31(339)
367 #define MTSPR XO31(467)
368 #define SRAWI XO31(824)
369 #define NEG XO31(104)
370 #define MFCR XO31( 19)
371 #define CNTLZW XO31( 26)
373 #define LBZX XO31( 87)
374 #define LHZX XO31(279)
375 #define LHAX XO31(343)
376 #define LWZX XO31( 23)
377 #define STBX XO31(215)
378 #define STHX XO31(407)
379 #define STWX XO31(151)
381 #define SPR(a,b) ((((a)<<5)|(b))<<11)
383 #define CTR SPR(9, 0)
385 #define SLW XO31( 24)
386 #define SRW XO31(536)
387 #define SRAW XO31(792)
390 #define TRAP (TW | TO (31))
392 #define RT(r) ((r)<<21)
393 #define RS(r) ((r)<<21)
394 #define RA(r) ((r)<<16)
395 #define RB(r) ((r)<<11)
396 #define TO(t) ((t)<<21)
397 #define SH(s) ((s)<<11)
398 #define MB(b) ((b)<<6)
399 #define ME(e) ((e)<<1)
400 #define BO(o) ((o)<<21)
404 #define TAB(t,a,b) (RT(t) | RA(a) | RB(b))
405 #define SAB(s,a,b) (RS(s) | RA(a) | RB(b))
407 #define BF(n) ((n)<<23)
408 #define BI(n, c) (((c)+((n)*4))<<16)
409 #define BT(n, c) (((c)+((n)*4))<<21)
410 #define BA(n, c) (((c)+((n)*4))<<16)
411 #define BB(n, c) (((c)+((n)*4))<<11)
413 #define BO_COND_TRUE BO (12)
414 #define BO_COND_FALSE BO (4)
415 #define BO_ALWAYS BO (20)
424 static const uint32_t tcg_to_bc[10] = {
425 [TCG_COND_EQ] = BC | BI (7, CR_EQ) | BO_COND_TRUE,
426 [TCG_COND_NE] = BC | BI (7, CR_EQ) | BO_COND_FALSE,
427 [TCG_COND_LT] = BC | BI (7, CR_LT) | BO_COND_TRUE,
428 [TCG_COND_GE] = BC | BI (7, CR_LT) | BO_COND_FALSE,
429 [TCG_COND_LE] = BC | BI (7, CR_GT) | BO_COND_FALSE,
430 [TCG_COND_GT] = BC | BI (7, CR_GT) | BO_COND_TRUE,
431 [TCG_COND_LTU] = BC | BI (7, CR_LT) | BO_COND_TRUE,
432 [TCG_COND_GEU] = BC | BI (7, CR_LT) | BO_COND_FALSE,
433 [TCG_COND_LEU] = BC | BI (7, CR_GT) | BO_COND_FALSE,
434 [TCG_COND_GTU] = BC | BI (7, CR_GT) | BO_COND_TRUE,
437 static void tcg_out_mov(TCGContext *s, int ret, int arg)
439 tcg_out32 (s, OR | SAB (arg, ret, arg));
442 static void tcg_out_movi(TCGContext *s, TCGType type,
443 int ret, tcg_target_long arg)
445 if (arg == (int16_t) arg)
446 tcg_out32 (s, ADDI | RT (ret) | RA (0) | (arg & 0xffff));
448 tcg_out32 (s, ADDIS | RT (ret) | RA (0) | ((arg >> 16) & 0xffff));
450 tcg_out32 (s, ORI | RS (ret) | RA (ret) | (arg & 0xffff));
454 static void tcg_out_ldst (TCGContext *s, int ret, int addr,
455 int offset, int op1, int op2)
457 if (offset == (int16_t) offset)
458 tcg_out32 (s, op1 | RT (ret) | RA (addr) | (offset & 0xffff));
460 tcg_out_movi (s, TCG_TYPE_I32, 0, offset);
461 tcg_out32 (s, op2 | RT (ret) | RA (addr) | RB (0));
465 static void tcg_out_b (TCGContext *s, int mask, tcg_target_long target)
467 tcg_target_long disp;
469 disp = target - (tcg_target_long) s->code_ptr;
470 if ((disp << 6) >> 6 == disp)
471 tcg_out32 (s, B | (disp & 0x3fffffc) | mask);
473 tcg_out_movi (s, TCG_TYPE_I32, 0, (tcg_target_long) target);
474 tcg_out32 (s, MTSPR | RS (0) | CTR);
475 tcg_out32 (s, BCCTR | BO_ALWAYS | mask);
479 static void tcg_out_call (TCGContext *s, tcg_target_long arg, int const_arg)
486 tcg_out_movi (s, TCG_TYPE_I32, reg, arg);
490 tcg_out32 (s, LWZ | RT (0) | RA (reg));
491 tcg_out32 (s, MTSPR | RA (0) | CTR);
492 tcg_out32 (s, LWZ | RT (2) | RA (reg) | 4);
493 tcg_out32 (s, BCCTR | BO_ALWAYS | LK);
496 tcg_out_b (s, LK, arg);
499 tcg_out32 (s, MTSPR | RS (arg) | LR);
500 tcg_out32 (s, BCLR | BO_ALWAYS | LK);
505 #if defined(CONFIG_SOFTMMU)
507 #include "../../softmmu_defs.h"
509 static void *qemu_ld_helpers[4] = {
516 static void *qemu_st_helpers[4] = {
524 static void tcg_out_qemu_ld (TCGContext *s, const TCGArg *args, int opc)
526 int addr_reg, data_reg, data_reg2, r0, r1, rbase, mem_index, s_bits, bswap;
527 #ifdef CONFIG_SOFTMMU
529 void *label1_ptr, *label2_ptr;
531 #if TARGET_LONG_BITS == 64
541 #if TARGET_LONG_BITS == 64
547 #ifdef CONFIG_SOFTMMU
553 tcg_out32 (s, (RLWINM
556 | SH (32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS))
557 | MB (32 - (CPU_TLB_BITS + CPU_TLB_ENTRY_BITS))
558 | ME (31 - CPU_TLB_ENTRY_BITS)
561 tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (TCG_AREG0));
565 | offsetof (CPUState, tlb_table[mem_index][0].addr_read)
568 tcg_out32 (s, (RLWINM
572 | MB ((32 - s_bits) & 31)
573 | ME (31 - TARGET_PAGE_BITS)
577 tcg_out32 (s, CMP | BF (7) | RA (r2) | RB (r1));
578 #if TARGET_LONG_BITS == 64
579 tcg_out32 (s, LWZ | RT (r1) | RA (r0) | 4);
580 tcg_out32 (s, CMP | BF (6) | RA (addr_reg2) | RB (r1));
581 tcg_out32 (s, CRAND | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, CR_EQ));
584 label1_ptr = s->code_ptr;
586 tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE);
590 #if TARGET_LONG_BITS == 32
591 tcg_out_mov (s, 3, addr_reg);
592 tcg_out_movi (s, TCG_TYPE_I32, 4, mem_index);
594 tcg_out_mov (s, 3, addr_reg2);
595 tcg_out_mov (s, 4, addr_reg);
596 tcg_out_movi (s, TCG_TYPE_I32, 5, mem_index);
599 tcg_out_call (s, (tcg_target_long) qemu_ld_helpers[s_bits], 1);
602 tcg_out32 (s, EXTSB | RA (data_reg) | RS (3));
605 tcg_out32 (s, EXTSH | RA (data_reg) | RS (3));
611 tcg_out_mov (s, data_reg, 3);
615 if (data_reg2 == 4) {
616 tcg_out_mov (s, 0, 4);
617 tcg_out_mov (s, 4, 3);
618 tcg_out_mov (s, 3, 0);
621 tcg_out_mov (s, data_reg2, 3);
622 tcg_out_mov (s, 3, 4);
626 if (data_reg != 4) tcg_out_mov (s, data_reg, 4);
627 if (data_reg2 != 3) tcg_out_mov (s, data_reg2, 3);
631 label2_ptr = s->code_ptr;
634 /* label1: fast path */
636 reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr);
639 /* r0 now contains &env->tlb_table[mem_index][index].addr_read */
643 | (ADDEND_OFFSET + offsetof (CPUTLBEntry, addend)
644 - offsetof (CPUTLBEntry, addr_read))
646 /* r0 = env->tlb_table[mem_index][index].addend */
647 tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg));
648 /* r0 = env->tlb_table[mem_index][index].addend + addr */
650 #else /* !CONFIG_SOFTMMU */
653 rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
656 #ifdef TARGET_WORDS_BIGENDIAN
665 tcg_out32 (s, LBZX | TAB (data_reg, rbase, r0));
668 tcg_out32 (s, LBZX | TAB (data_reg, rbase, r0));
669 tcg_out32 (s, EXTSB | RA (data_reg) | RS (data_reg));
673 tcg_out32 (s, LHBRX | TAB (data_reg, rbase, r0));
675 tcg_out32 (s, LHZX | TAB (data_reg, rbase, r0));
679 tcg_out32 (s, LHBRX | TAB (data_reg, rbase, r0));
680 tcg_out32 (s, EXTSH | RA (data_reg) | RS (data_reg));
682 else tcg_out32 (s, LHAX | TAB (data_reg, rbase, r0));
686 tcg_out32 (s, LWBRX | TAB (data_reg, rbase, r0));
688 tcg_out32 (s, LWZX | TAB (data_reg, rbase, r0));
692 tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
693 tcg_out32 (s, LWBRX | TAB (data_reg, rbase, r0));
694 tcg_out32 (s, LWBRX | TAB (data_reg2, rbase, r1));
697 #ifdef CONFIG_USE_GUEST_BASE
698 tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
699 tcg_out32 (s, LWZX | TAB (data_reg2, rbase, r0));
700 tcg_out32 (s, LWZX | TAB (data_reg, rbase, r1));
702 if (r0 == data_reg2) {
703 tcg_out32 (s, LWZ | RT (0) | RA (r0));
704 tcg_out32 (s, LWZ | RT (data_reg) | RA (r0) | 4);
705 tcg_out_mov (s, data_reg2, 0);
708 tcg_out32 (s, LWZ | RT (data_reg2) | RA (r0));
709 tcg_out32 (s, LWZ | RT (data_reg) | RA (r0) | 4);
716 #ifdef CONFIG_SOFTMMU
717 reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr);
721 static void tcg_out_qemu_st (TCGContext *s, const TCGArg *args, int opc)
723 int addr_reg, r0, r1, data_reg, data_reg2, mem_index, bswap, rbase;
724 #ifdef CONFIG_SOFTMMU
726 void *label1_ptr, *label2_ptr;
728 #if TARGET_LONG_BITS == 64
738 #if TARGET_LONG_BITS == 64
743 #ifdef CONFIG_SOFTMMU
749 tcg_out32 (s, (RLWINM
752 | SH (32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS))
753 | MB (32 - (CPU_TLB_ENTRY_BITS + CPU_TLB_BITS))
754 | ME (31 - CPU_TLB_ENTRY_BITS)
757 tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (TCG_AREG0));
761 | offsetof (CPUState, tlb_table[mem_index][0].addr_write)
764 tcg_out32 (s, (RLWINM
768 | MB ((32 - opc) & 31)
769 | ME (31 - TARGET_PAGE_BITS)
773 tcg_out32 (s, CMP | (7 << 23) | RA (r2) | RB (r1));
774 #if TARGET_LONG_BITS == 64
775 tcg_out32 (s, LWZ | RT (r1) | RA (r0) | 4);
776 tcg_out32 (s, CMP | BF (6) | RA (addr_reg2) | RB (r1));
777 tcg_out32 (s, CRAND | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, CR_EQ));
780 label1_ptr = s->code_ptr;
782 tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE);
786 #if TARGET_LONG_BITS == 32
787 tcg_out_mov (s, 3, addr_reg);
790 tcg_out_mov (s, 3, addr_reg2);
791 tcg_out_mov (s, 4, addr_reg);
792 #ifdef TCG_TARGET_CALL_ALIGN_ARGS
801 tcg_out32 (s, (RLWINM
809 tcg_out32 (s, (RLWINM
817 tcg_out_mov (s, ir, data_reg);
820 #ifdef TCG_TARGET_CALL_ALIGN_ARGS
823 tcg_out_mov (s, ir++, data_reg2);
824 tcg_out_mov (s, ir, data_reg);
829 tcg_out_movi (s, TCG_TYPE_I32, ir, mem_index);
830 tcg_out_call (s, (tcg_target_long) qemu_st_helpers[opc], 1);
831 label2_ptr = s->code_ptr;
834 /* label1: fast path */
836 reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr);
842 | (ADDEND_OFFSET + offsetof (CPUTLBEntry, addend)
843 - offsetof (CPUTLBEntry, addr_write))
845 /* r0 = env->tlb_table[mem_index][index].addend */
846 tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg));
847 /* r0 = env->tlb_table[mem_index][index].addend + addr */
849 #else /* !CONFIG_SOFTMMU */
852 rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
855 #ifdef TARGET_WORDS_BIGENDIAN
862 tcg_out32 (s, STBX | SAB (data_reg, rbase, r0));
866 tcg_out32 (s, STHBRX | SAB (data_reg, rbase, r0));
868 tcg_out32 (s, STHX | SAB (data_reg, rbase, r0));
872 tcg_out32 (s, STWBRX | SAB (data_reg, rbase, r0));
874 tcg_out32 (s, STWX | SAB (data_reg, rbase, r0));
878 tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
879 tcg_out32 (s, STWBRX | SAB (data_reg, rbase, r0));
880 tcg_out32 (s, STWBRX | SAB (data_reg2, rbase, r1));
883 #ifdef CONFIG_USE_GUEST_BASE
884 tcg_out32 (s, STWX | SAB (data_reg2, rbase, r0));
885 tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
886 tcg_out32 (s, STWX | SAB (data_reg, rbase, r1));
888 tcg_out32 (s, STW | RS (data_reg2) | RA (r0));
889 tcg_out32 (s, STW | RS (data_reg) | RA (r0) | 4);
895 #ifdef CONFIG_SOFTMMU
896 reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr);
900 void tcg_target_qemu_prologue (TCGContext *s)
906 + TCG_STATIC_CALL_ARGS_SIZE
907 + ARRAY_SIZE (tcg_target_callee_save_regs) * 4
909 frame_size = (frame_size + 15) & ~15;
915 /* First emit adhoc function descriptor */
916 addr = (uint32_t) s->code_ptr + 12;
917 tcg_out32 (s, addr); /* entry point */
918 s->code_ptr += 8; /* skip TOC and environment pointer */
921 tcg_out32 (s, MFSPR | RT (0) | LR);
922 tcg_out32 (s, STWU | RS (1) | RA (1) | (-frame_size & 0xffff));
923 for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i)
925 | RS (tcg_target_callee_save_regs[i])
927 | (i * 4 + LINKAGE_AREA_SIZE + TCG_STATIC_CALL_ARGS_SIZE)
930 tcg_out32 (s, STW | RS (0) | RA (1) | (frame_size + LR_OFFSET));
932 #ifdef CONFIG_USE_GUEST_BASE
933 tcg_out_movi (s, TCG_TYPE_I32, TCG_GUEST_BASE_REG, GUEST_BASE);
936 tcg_out32 (s, MTSPR | RS (3) | CTR);
937 tcg_out32 (s, BCCTR | BO_ALWAYS);
938 tb_ret_addr = s->code_ptr;
940 for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i)
942 | RT (tcg_target_callee_save_regs[i])
944 | (i * 4 + LINKAGE_AREA_SIZE + TCG_STATIC_CALL_ARGS_SIZE)
947 tcg_out32 (s, LWZ | RT (0) | RA (1) | (frame_size + LR_OFFSET));
948 tcg_out32 (s, MTSPR | RS (0) | LR);
949 tcg_out32 (s, ADDI | RT (1) | RA (1) | frame_size);
950 tcg_out32 (s, BCLR | BO_ALWAYS);
953 static void tcg_out_ld (TCGContext *s, TCGType type, int ret, int arg1,
954 tcg_target_long arg2)
956 tcg_out_ldst (s, ret, arg1, arg2, LWZ, LWZX);
959 static void tcg_out_st (TCGContext *s, TCGType type, int arg, int arg1,
960 tcg_target_long arg2)
962 tcg_out_ldst (s, arg, arg1, arg2, STW, STWX);
965 static void ppc_addi (TCGContext *s, int rt, int ra, tcg_target_long si)
970 if (si == (int16_t) si)
971 tcg_out32 (s, ADDI | RT (rt) | RA (ra) | (si & 0xffff));
973 uint16_t h = ((si >> 16) & 0xffff) + ((uint16_t) si >> 15);
974 tcg_out32 (s, ADDIS | RT (rt) | RA (ra) | h);
975 tcg_out32 (s, ADDI | RT (rt) | RA (rt) | (si & 0xffff));
979 static void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val)
981 ppc_addi (s, reg, reg, val);
984 static void tcg_out_cmp (TCGContext *s, int cond, TCGArg arg1, TCGArg arg2,
985 int const_arg2, int cr)
994 if ((int16_t) arg2 == arg2) {
999 else if ((uint16_t) arg2 == arg2) {
1014 if ((int16_t) arg2 == arg2) {
1029 if ((uint16_t) arg2 == arg2) {
1045 tcg_out32 (s, op | RA (arg1) | (arg2 & 0xffff));
1048 tcg_out_movi (s, TCG_TYPE_I32, 0, arg2);
1049 tcg_out32 (s, op | RA (arg1) | RB (0));
1052 tcg_out32 (s, op | RA (arg1) | RB (arg2));
1057 static void tcg_out_bc (TCGContext *s, int bc, int label_index)
1059 TCGLabel *l = &s->labels[label_index];
1062 tcg_out32 (s, bc | reloc_pc14_val (s->code_ptr, l->u.value));
1064 uint16_t val = *(uint16_t *) &s->code_ptr[2];
1066 /* Thanks to Andrzej Zaborowski */
1067 tcg_out32 (s, bc | (val & 0xfffc));
1068 tcg_out_reloc (s, s->code_ptr - 4, R_PPC_REL14, label_index, 0);
1072 static void tcg_out_cr7eq_from_cond (TCGContext *s, const TCGArg *args,
1073 const int *const_args)
1075 int cond = args[4], op;
1076 struct { int bit1; int bit2; int cond2; } bits[] = {
1077 [TCG_COND_LT ] = { CR_LT, CR_LT, TCG_COND_LT },
1078 [TCG_COND_LE ] = { CR_LT, CR_GT, TCG_COND_LT },
1079 [TCG_COND_GT ] = { CR_GT, CR_GT, TCG_COND_GT },
1080 [TCG_COND_GE ] = { CR_GT, CR_LT, TCG_COND_GT },
1081 [TCG_COND_LTU] = { CR_LT, CR_LT, TCG_COND_LTU },
1082 [TCG_COND_LEU] = { CR_LT, CR_GT, TCG_COND_LTU },
1083 [TCG_COND_GTU] = { CR_GT, CR_GT, TCG_COND_GTU },
1084 [TCG_COND_GEU] = { CR_GT, CR_LT, TCG_COND_GTU },
1085 }, *b = &bits[cond];
1090 op = (cond == TCG_COND_EQ) ? CRAND : CRNAND;
1091 tcg_out_cmp (s, cond, args[0], args[2], const_args[2], 6);
1092 tcg_out_cmp (s, cond, args[1], args[3], const_args[3], 7);
1093 tcg_out32 (s, op | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, CR_EQ));
1103 op = (b->bit1 != b->bit2) ? CRANDC : CRAND;
1104 tcg_out_cmp (s, b->cond2, args[1], args[3], const_args[3], 5);
1105 tcg_out_cmp (s, TCG_COND_EQ, args[1], args[3], const_args[3], 6);
1106 tcg_out_cmp (s, cond, args[0], args[2], const_args[2], 7);
1107 tcg_out32 (s, op | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, b->bit2));
1108 tcg_out32 (s, CROR | BT (7, CR_EQ) | BA (5, b->bit1) | BB (7, CR_EQ));
1115 static void tcg_out_setcond (TCGContext *s, int cond, TCGArg arg0,
1116 TCGArg arg1, TCGArg arg2, int const_arg2)
1128 if ((uint16_t) arg2 == arg2) {
1129 tcg_out32 (s, XORI | RS (arg1) | RA (0) | arg2);
1132 tcg_out_movi (s, TCG_TYPE_I32, 0, arg2);
1133 tcg_out32 (s, XOR | SAB (arg1, 0, 0));
1139 tcg_out32 (s, XOR | SAB (arg1, 0, arg2));
1141 tcg_out32 (s, CNTLZW | RS (arg) | RA (0));
1142 tcg_out32 (s, (RLWINM
1159 if ((uint16_t) arg2 == arg2) {
1160 tcg_out32 (s, XORI | RS (arg1) | RA (0) | arg2);
1163 tcg_out_movi (s, TCG_TYPE_I32, 0, arg2);
1164 tcg_out32 (s, XOR | SAB (arg1, 0, 0));
1170 tcg_out32 (s, XOR | SAB (arg1, 0, arg2));
1173 if (arg == arg1 && arg1 == arg0) {
1174 tcg_out32 (s, ADDIC | RT (0) | RA (arg) | 0xffff);
1175 tcg_out32 (s, SUBFE | TAB (arg0, 0, arg));
1178 tcg_out32 (s, ADDIC | RT (arg0) | RA (arg) | 0xffff);
1179 tcg_out32 (s, SUBFE | TAB (arg0, arg0, arg));
1198 crop = CRNOR | BT (7, CR_EQ) | BA (7, CR_LT) | BB (7, CR_LT);
1204 crop = CRNOR | BT (7, CR_EQ) | BA (7, CR_GT) | BB (7, CR_GT);
1206 tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7);
1207 if (crop) tcg_out32 (s, crop);
1208 tcg_out32 (s, MFCR | RT (0));
1209 tcg_out32 (s, (RLWINM
1224 static void tcg_out_setcond2 (TCGContext *s, const TCGArg *args,
1225 const int *const_args)
1227 tcg_out_cr7eq_from_cond (s, args + 1, const_args + 1);
1228 tcg_out32 (s, MFCR | RT (0));
1229 tcg_out32 (s, (RLWINM
1239 static void tcg_out_brcond (TCGContext *s, int cond,
1240 TCGArg arg1, TCGArg arg2, int const_arg2,
1243 tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7);
1244 tcg_out_bc (s, tcg_to_bc[cond], label_index);
1247 /* XXX: we implement it at the target level to avoid having to
1248 handle cross basic blocks temporaries */
1249 static void tcg_out_brcond2 (TCGContext *s, const TCGArg *args,
1250 const int *const_args)
1252 tcg_out_cr7eq_from_cond (s, args, const_args);
1253 tcg_out_bc (s, (BC | BI (7, CR_EQ) | BO_COND_TRUE), args[5]);
1256 void ppc_tb_set_jmp_target (unsigned long jmp_addr, unsigned long addr)
1259 long disp = addr - jmp_addr;
1260 unsigned long patch_size;
1262 ptr = (uint32_t *)jmp_addr;
1264 if ((disp << 6) >> 6 != disp) {
1265 ptr[0] = 0x3c000000 | (addr >> 16); /* lis 0,addr@ha */
1266 ptr[1] = 0x60000000 | (addr & 0xffff); /* la 0,addr@l(0) */
1267 ptr[2] = 0x7c0903a6; /* mtctr 0 */
1268 ptr[3] = 0x4e800420; /* brctr */
1271 /* patch the branch destination */
1273 *ptr = 0x48000000 | (disp & 0x03fffffc); /* b disp */
1276 ptr[0] = 0x60000000; /* nop */
1277 ptr[1] = 0x60000000;
1278 ptr[2] = 0x60000000;
1279 ptr[3] = 0x60000000;
1284 flush_icache_range(jmp_addr, jmp_addr + patch_size);
1287 static void tcg_out_op(TCGContext *s, int opc, const TCGArg *args,
1288 const int *const_args)
1291 case INDEX_op_exit_tb:
1292 tcg_out_movi (s, TCG_TYPE_I32, TCG_REG_R3, args[0]);
1293 tcg_out_b (s, 0, (tcg_target_long) tb_ret_addr);
1295 case INDEX_op_goto_tb:
1296 if (s->tb_jmp_offset) {
1297 /* direct jump method */
1299 s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
1305 s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
1309 TCGLabel *l = &s->labels[args[0]];
1312 tcg_out_b (s, 0, l->u.value);
1315 uint32_t val = *(uint32_t *) s->code_ptr;
1317 /* Thanks to Andrzej Zaborowski */
1318 tcg_out32 (s, B | (val & 0x3fffffc));
1319 tcg_out_reloc (s, s->code_ptr - 4, R_PPC_REL24, args[0], 0);
1324 tcg_out_call (s, args[0], const_args[0]);
1327 if (const_args[0]) {
1328 tcg_out_b (s, 0, args[0]);
1331 tcg_out32 (s, MTSPR | RS (args[0]) | CTR);
1332 tcg_out32 (s, BCCTR | BO_ALWAYS);
1335 case INDEX_op_movi_i32:
1336 tcg_out_movi(s, TCG_TYPE_I32, args[0], args[1]);
1338 case INDEX_op_ld8u_i32:
1339 tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX);
1341 case INDEX_op_ld8s_i32:
1342 tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX);
1343 tcg_out32 (s, EXTSB | RS (args[0]) | RA (args[0]));
1345 case INDEX_op_ld16u_i32:
1346 tcg_out_ldst (s, args[0], args[1], args[2], LHZ, LHZX);
1348 case INDEX_op_ld16s_i32:
1349 tcg_out_ldst (s, args[0], args[1], args[2], LHA, LHAX);
1351 case INDEX_op_ld_i32:
1352 tcg_out_ldst (s, args[0], args[1], args[2], LWZ, LWZX);
1354 case INDEX_op_st8_i32:
1355 tcg_out_ldst (s, args[0], args[1], args[2], STB, STBX);
1357 case INDEX_op_st16_i32:
1358 tcg_out_ldst (s, args[0], args[1], args[2], STH, STHX);
1360 case INDEX_op_st_i32:
1361 tcg_out_ldst (s, args[0], args[1], args[2], STW, STWX);
1364 case INDEX_op_add_i32:
1366 ppc_addi (s, args[0], args[1], args[2]);
1368 tcg_out32 (s, ADD | TAB (args[0], args[1], args[2]));
1370 case INDEX_op_sub_i32:
1372 ppc_addi (s, args[0], args[1], -args[2]);
1374 tcg_out32 (s, SUBF | TAB (args[0], args[2], args[1]));
1377 case INDEX_op_and_i32:
1378 if (const_args[2]) {
1384 tcg_out_movi (s, TCG_TYPE_I32, args[0], 0);
1394 if ((t & (t - 1)) == 0) {
1397 if ((c & 0x80000001) == 0x80000001) {
1412 tcg_out32 (s, (RLWINM
1422 #endif /* !__PPU__ */
1424 if ((c & 0xffff) == c)
1425 tcg_out32 (s, ANDI | RS (args[1]) | RA (args[0]) | c);
1426 else if ((c & 0xffff0000) == c)
1427 tcg_out32 (s, ANDIS | RS (args[1]) | RA (args[0])
1428 | ((c >> 16) & 0xffff));
1430 tcg_out_movi (s, TCG_TYPE_I32, 0, c);
1431 tcg_out32 (s, AND | SAB (args[1], args[0], 0));
1436 tcg_out32 (s, AND | SAB (args[1], args[0], args[2]));
1438 case INDEX_op_or_i32:
1439 if (const_args[2]) {
1440 if (args[2] & 0xffff) {
1441 tcg_out32 (s, ORI | RS (args[1]) | RA (args[0])
1442 | (args[2] & 0xffff));
1444 tcg_out32 (s, ORIS | RS (args[0]) | RA (args[0])
1445 | ((args[2] >> 16) & 0xffff));
1448 tcg_out32 (s, ORIS | RS (args[1]) | RA (args[0])
1449 | ((args[2] >> 16) & 0xffff));
1453 tcg_out32 (s, OR | SAB (args[1], args[0], args[2]));
1455 case INDEX_op_xor_i32:
1456 if (const_args[2]) {
1457 if ((args[2] & 0xffff) == args[2])
1458 tcg_out32 (s, XORI | RS (args[1]) | RA (args[0])
1459 | (args[2] & 0xffff));
1460 else if ((args[2] & 0xffff0000) == args[2])
1461 tcg_out32 (s, XORIS | RS (args[1]) | RA (args[0])
1462 | ((args[2] >> 16) & 0xffff));
1464 tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]);
1465 tcg_out32 (s, XOR | SAB (args[1], args[0], 0));
1469 tcg_out32 (s, XOR | SAB (args[1], args[0], args[2]));
1472 case INDEX_op_mul_i32:
1473 if (const_args[2]) {
1474 if (args[2] == (int16_t) args[2])
1475 tcg_out32 (s, MULLI | RT (args[0]) | RA (args[1])
1476 | (args[2] & 0xffff));
1478 tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]);
1479 tcg_out32 (s, MULLW | TAB (args[0], args[1], 0));
1483 tcg_out32 (s, MULLW | TAB (args[0], args[1], args[2]));
1486 case INDEX_op_div_i32:
1487 tcg_out32 (s, DIVW | TAB (args[0], args[1], args[2]));
1490 case INDEX_op_divu_i32:
1491 tcg_out32 (s, DIVWU | TAB (args[0], args[1], args[2]));
1494 case INDEX_op_rem_i32:
1495 tcg_out32 (s, DIVW | TAB (0, args[1], args[2]));
1496 tcg_out32 (s, MULLW | TAB (0, 0, args[2]));
1497 tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
1500 case INDEX_op_remu_i32:
1501 tcg_out32 (s, DIVWU | TAB (0, args[1], args[2]));
1502 tcg_out32 (s, MULLW | TAB (0, 0, args[2]));
1503 tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
1506 case INDEX_op_mulu2_i32:
1507 if (args[0] == args[2] || args[0] == args[3]) {
1508 tcg_out32 (s, MULLW | TAB (0, args[2], args[3]));
1509 tcg_out32 (s, MULHWU | TAB (args[1], args[2], args[3]));
1510 tcg_out_mov (s, args[0], 0);
1513 tcg_out32 (s, MULLW | TAB (args[0], args[2], args[3]));
1514 tcg_out32 (s, MULHWU | TAB (args[1], args[2], args[3]));
1518 case INDEX_op_shl_i32:
1519 if (const_args[2]) {
1520 tcg_out32 (s, (RLWINM
1530 tcg_out32 (s, SLW | SAB (args[1], args[0], args[2]));
1532 case INDEX_op_shr_i32:
1533 if (const_args[2]) {
1534 tcg_out32 (s, (RLWINM
1544 tcg_out32 (s, SRW | SAB (args[1], args[0], args[2]));
1546 case INDEX_op_sar_i32:
1548 tcg_out32 (s, SRAWI | RS (args[1]) | RA (args[0]) | SH (args[2]));
1550 tcg_out32 (s, SRAW | SAB (args[1], args[0], args[2]));
1553 case INDEX_op_add2_i32:
1554 if (args[0] == args[3] || args[0] == args[5]) {
1555 tcg_out32 (s, ADDC | TAB (0, args[2], args[4]));
1556 tcg_out32 (s, ADDE | TAB (args[1], args[3], args[5]));
1557 tcg_out_mov (s, args[0], 0);
1560 tcg_out32 (s, ADDC | TAB (args[0], args[2], args[4]));
1561 tcg_out32 (s, ADDE | TAB (args[1], args[3], args[5]));
1564 case INDEX_op_sub2_i32:
1565 if (args[0] == args[3] || args[0] == args[5]) {
1566 tcg_out32 (s, SUBFC | TAB (0, args[4], args[2]));
1567 tcg_out32 (s, SUBFE | TAB (args[1], args[5], args[3]));
1568 tcg_out_mov (s, args[0], 0);
1571 tcg_out32 (s, SUBFC | TAB (args[0], args[4], args[2]));
1572 tcg_out32 (s, SUBFE | TAB (args[1], args[5], args[3]));
1576 case INDEX_op_brcond_i32:
1581 args[3] = r1 is const
1582 args[4] = label_index
1584 tcg_out_brcond (s, args[2], args[0], args[1], const_args[1], args[3]);
1586 case INDEX_op_brcond2_i32:
1587 tcg_out_brcond2(s, args, const_args);
1590 case INDEX_op_neg_i32:
1591 tcg_out32 (s, NEG | RT (args[0]) | RA (args[1]));
1594 case INDEX_op_qemu_ld8u:
1595 tcg_out_qemu_ld(s, args, 0);
1597 case INDEX_op_qemu_ld8s:
1598 tcg_out_qemu_ld(s, args, 0 | 4);
1600 case INDEX_op_qemu_ld16u:
1601 tcg_out_qemu_ld(s, args, 1);
1603 case INDEX_op_qemu_ld16s:
1604 tcg_out_qemu_ld(s, args, 1 | 4);
1606 case INDEX_op_qemu_ld32u:
1607 tcg_out_qemu_ld(s, args, 2);
1609 case INDEX_op_qemu_ld64:
1610 tcg_out_qemu_ld(s, args, 3);
1612 case INDEX_op_qemu_st8:
1613 tcg_out_qemu_st(s, args, 0);
1615 case INDEX_op_qemu_st16:
1616 tcg_out_qemu_st(s, args, 1);
1618 case INDEX_op_qemu_st32:
1619 tcg_out_qemu_st(s, args, 2);
1621 case INDEX_op_qemu_st64:
1622 tcg_out_qemu_st(s, args, 3);
1625 case INDEX_op_ext8s_i32:
1626 tcg_out32 (s, EXTSB | RS (args[1]) | RA (args[0]));
1628 case INDEX_op_ext16s_i32:
1629 tcg_out32 (s, EXTSH | RS (args[1]) | RA (args[0]));
1632 case INDEX_op_setcond_i32:
1633 tcg_out_setcond (s, args[3], args[0], args[1], args[2], const_args[2]);
1635 case INDEX_op_setcond2_i32:
1636 tcg_out_setcond2 (s, args, const_args);
1640 tcg_dump_ops (s, stderr);
1645 static const TCGTargetOpDef ppc_op_defs[] = {
1646 { INDEX_op_exit_tb, { } },
1647 { INDEX_op_goto_tb, { } },
1648 { INDEX_op_call, { "ri" } },
1649 { INDEX_op_jmp, { "ri" } },
1650 { INDEX_op_br, { } },
1652 { INDEX_op_mov_i32, { "r", "r" } },
1653 { INDEX_op_movi_i32, { "r" } },
1654 { INDEX_op_ld8u_i32, { "r", "r" } },
1655 { INDEX_op_ld8s_i32, { "r", "r" } },
1656 { INDEX_op_ld16u_i32, { "r", "r" } },
1657 { INDEX_op_ld16s_i32, { "r", "r" } },
1658 { INDEX_op_ld_i32, { "r", "r" } },
1659 { INDEX_op_st8_i32, { "r", "r" } },
1660 { INDEX_op_st16_i32, { "r", "r" } },
1661 { INDEX_op_st_i32, { "r", "r" } },
1663 { INDEX_op_add_i32, { "r", "r", "ri" } },
1664 { INDEX_op_mul_i32, { "r", "r", "ri" } },
1665 { INDEX_op_div_i32, { "r", "r", "r" } },
1666 { INDEX_op_divu_i32, { "r", "r", "r" } },
1667 { INDEX_op_rem_i32, { "r", "r", "r" } },
1668 { INDEX_op_remu_i32, { "r", "r", "r" } },
1669 { INDEX_op_mulu2_i32, { "r", "r", "r", "r" } },
1670 { INDEX_op_sub_i32, { "r", "r", "ri" } },
1671 { INDEX_op_and_i32, { "r", "r", "ri" } },
1672 { INDEX_op_or_i32, { "r", "r", "ri" } },
1673 { INDEX_op_xor_i32, { "r", "r", "ri" } },
1675 { INDEX_op_shl_i32, { "r", "r", "ri" } },
1676 { INDEX_op_shr_i32, { "r", "r", "ri" } },
1677 { INDEX_op_sar_i32, { "r", "r", "ri" } },
1679 { INDEX_op_brcond_i32, { "r", "ri" } },
1681 { INDEX_op_add2_i32, { "r", "r", "r", "r", "r", "r" } },
1682 { INDEX_op_sub2_i32, { "r", "r", "r", "r", "r", "r" } },
1683 { INDEX_op_brcond2_i32, { "r", "r", "r", "r" } },
1685 { INDEX_op_neg_i32, { "r", "r" } },
1687 { INDEX_op_setcond_i32, { "r", "r", "ri" } },
1688 { INDEX_op_setcond2_i32, { "r", "r", "r", "ri", "ri" } },
1690 #if TARGET_LONG_BITS == 32
1691 { INDEX_op_qemu_ld8u, { "r", "L" } },
1692 { INDEX_op_qemu_ld8s, { "r", "L" } },
1693 { INDEX_op_qemu_ld16u, { "r", "L" } },
1694 { INDEX_op_qemu_ld16s, { "r", "L" } },
1695 { INDEX_op_qemu_ld32u, { "r", "L" } },
1696 { INDEX_op_qemu_ld32s, { "r", "L" } },
1697 { INDEX_op_qemu_ld64, { "r", "r", "L" } },
1699 { INDEX_op_qemu_st8, { "K", "K" } },
1700 { INDEX_op_qemu_st16, { "K", "K" } },
1701 { INDEX_op_qemu_st32, { "K", "K" } },
1702 { INDEX_op_qemu_st64, { "M", "M", "M" } },
1704 { INDEX_op_qemu_ld8u, { "r", "L", "L" } },
1705 { INDEX_op_qemu_ld8s, { "r", "L", "L" } },
1706 { INDEX_op_qemu_ld16u, { "r", "L", "L" } },
1707 { INDEX_op_qemu_ld16s, { "r", "L", "L" } },
1708 { INDEX_op_qemu_ld32u, { "r", "L", "L" } },
1709 { INDEX_op_qemu_ld32s, { "r", "L", "L" } },
1710 { INDEX_op_qemu_ld64, { "r", "L", "L", "L" } },
1712 { INDEX_op_qemu_st8, { "K", "K", "K" } },
1713 { INDEX_op_qemu_st16, { "K", "K", "K" } },
1714 { INDEX_op_qemu_st32, { "K", "K", "K" } },
1715 { INDEX_op_qemu_st64, { "M", "M", "M", "M" } },
1718 { INDEX_op_ext8s_i32, { "r", "r" } },
1719 { INDEX_op_ext16s_i32, { "r", "r" } },
1724 void tcg_target_init(TCGContext *s)
1726 tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff);
1727 tcg_regset_set32(tcg_target_call_clobber_regs, 0,
1739 (1 << TCG_REG_R10) |
1740 (1 << TCG_REG_R11) |
1744 tcg_regset_clear(s->reserved_regs);
1745 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0);
1746 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1);
1748 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R2);
1751 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R13);
1753 #ifdef CONFIG_USE_GUEST_BASE
1754 tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
1757 tcg_add_target_add_op_defs(ppc_op_defs);