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
24 const char *tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
43 int tcg_target_reg_alloc_order[TCG_TARGET_NB_REGS] = {
62 const int tcg_target_call_iarg_regs[6] = {
71 const int tcg_target_call_oarg_regs[2] = {
76 static void patch_reloc(uint8_t *code_ptr, int type,
77 tcg_target_long value)
81 if (value != (uint32_t)value)
83 *(uint32_t *)code_ptr = value;
86 if (value != (int32_t)value)
88 *(uint32_t *)code_ptr = value;
91 value -= (long)code_ptr;
92 if (value != (int32_t)value)
94 *(uint32_t *)code_ptr = value;
101 /* maximum number of register used for input function arguments */
102 static inline int tcg_target_get_call_iarg_regs_count(int flags)
107 /* parse target specific constraints */
108 int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
115 ct->ct |= TCG_CT_REG;
116 tcg_regset_set_reg(ct->u.regs, TCG_REG_RAX);
119 ct->ct |= TCG_CT_REG;
120 tcg_regset_set_reg(ct->u.regs, TCG_REG_RBX);
123 ct->ct |= TCG_CT_REG;
124 tcg_regset_set_reg(ct->u.regs, TCG_REG_RCX);
127 ct->ct |= TCG_CT_REG;
128 tcg_regset_set_reg(ct->u.regs, TCG_REG_RDX);
131 ct->ct |= TCG_CT_REG;
132 tcg_regset_set_reg(ct->u.regs, TCG_REG_RSI);
135 ct->ct |= TCG_CT_REG;
136 tcg_regset_set_reg(ct->u.regs, TCG_REG_RDI);
139 ct->ct |= TCG_CT_REG;
140 tcg_regset_set32(ct->u.regs, 0, 0xf);
143 ct->ct |= TCG_CT_REG;
144 tcg_regset_set32(ct->u.regs, 0, 0xffff);
146 case 'L': /* qemu_ld/st constraint */
147 ct->ct |= TCG_CT_REG;
148 tcg_regset_set32(ct->u.regs, 0, 0xffff);
149 tcg_regset_reset_reg(ct->u.regs, TCG_REG_RSI);
150 tcg_regset_reset_reg(ct->u.regs, TCG_REG_RDI);
153 ct->ct |= TCG_CT_CONST_S32;
156 ct->ct |= TCG_CT_CONST_U32;
166 /* test if a constant matches the constraint */
167 static inline int tcg_target_const_match(tcg_target_long val,
168 const TCGArgConstraint *arg_ct)
172 if (ct & TCG_CT_CONST)
174 else if ((ct & TCG_CT_CONST_S32) && val == (int32_t)val)
176 else if ((ct & TCG_CT_CONST_U32) && val == (uint32_t)val)
213 #define P_EXT 0x100 /* 0x0f opcode prefix */
214 #define P_REXW 0x200 /* set rex.w = 1 */
215 #define P_REX 0x400 /* force rex usage */
217 static const uint8_t tcg_cond_to_jcc[10] = {
218 [TCG_COND_EQ] = JCC_JE,
219 [TCG_COND_NE] = JCC_JNE,
220 [TCG_COND_LT] = JCC_JL,
221 [TCG_COND_GE] = JCC_JGE,
222 [TCG_COND_LE] = JCC_JLE,
223 [TCG_COND_GT] = JCC_JG,
224 [TCG_COND_LTU] = JCC_JB,
225 [TCG_COND_GEU] = JCC_JAE,
226 [TCG_COND_LEU] = JCC_JBE,
227 [TCG_COND_GTU] = JCC_JA,
230 static inline void tcg_out_opc(TCGContext *s, int opc, int r, int rm, int x)
233 rex = ((opc >> 6) & 0x8) | ((r >> 1) & 0x4) |
234 ((x >> 2) & 2) | ((rm >> 3) & 1);
235 if (rex || (opc & P_REX)) {
236 tcg_out8(s, rex | 0x40);
243 static inline void tcg_out_modrm(TCGContext *s, int opc, int r, int rm)
245 tcg_out_opc(s, opc, r, rm, 0);
246 tcg_out8(s, 0xc0 | ((r & 7) << 3) | (rm & 7));
249 /* rm < 0 means no register index plus (-rm - 1 immediate bytes) */
250 static inline void tcg_out_modrm_offset(TCGContext *s, int opc, int r, int rm,
251 tcg_target_long offset)
255 tcg_out_opc(s, opc, r, 0, 0);
256 val = offset - ((tcg_target_long)s->code_ptr + 5 + (-rm - 1));
257 if (val == (int32_t)val) {
259 tcg_out8(s, 0x05 | ((r & 7) << 3));
261 } else if (offset == (int32_t)offset) {
262 tcg_out8(s, 0x04 | ((r & 7) << 3));
263 tcg_out8(s, 0x25); /* sib */
264 tcg_out32(s, offset);
268 } else if (offset == 0 && (rm & 7) != TCG_REG_RBP) {
269 tcg_out_opc(s, opc, r, rm, 0);
270 if ((rm & 7) == TCG_REG_RSP) {
271 tcg_out8(s, 0x04 | ((r & 7) << 3));
274 tcg_out8(s, 0x00 | ((r & 7) << 3) | (rm & 7));
276 } else if ((int8_t)offset == offset) {
277 tcg_out_opc(s, opc, r, rm, 0);
278 if ((rm & 7) == TCG_REG_RSP) {
279 tcg_out8(s, 0x44 | ((r & 7) << 3));
282 tcg_out8(s, 0x40 | ((r & 7) << 3) | (rm & 7));
286 tcg_out_opc(s, opc, r, rm, 0);
287 if ((rm & 7) == TCG_REG_RSP) {
288 tcg_out8(s, 0x84 | ((r & 7) << 3));
291 tcg_out8(s, 0x80 | ((r & 7) << 3) | (rm & 7));
293 tcg_out32(s, offset);
297 #if defined(CONFIG_SOFTMMU)
298 /* XXX: incomplete. index must be different from ESP */
299 static void tcg_out_modrm_offset2(TCGContext *s, int opc, int r, int rm,
300 int index, int shift,
301 tcg_target_long offset)
306 if (offset == 0 && (rm & 7) != TCG_REG_RBP) {
308 } else if (offset == (int8_t)offset) {
310 } else if (offset == (int32_t)offset) {
316 tcg_out_opc(s, opc, r, rm, 0);
317 if ((rm & 7) == TCG_REG_RSP) {
318 tcg_out8(s, mod | ((r & 7) << 3) | 0x04);
319 tcg_out8(s, 0x04 | (rm & 7));
321 tcg_out8(s, mod | ((r & 7) << 3) | (rm & 7));
324 tcg_out_opc(s, opc, r, rm, index);
325 tcg_out8(s, mod | ((r & 7) << 3) | 0x04);
326 tcg_out8(s, (shift << 6) | ((index & 7) << 3) | (rm & 7));
330 } else if (mod == 0x80) {
331 tcg_out32(s, offset);
336 static inline void tcg_out_mov(TCGContext *s, int ret, int arg)
338 tcg_out_modrm(s, 0x8b | P_REXW, ret, arg);
341 static inline void tcg_out_movi(TCGContext *s, TCGType type,
342 int ret, tcg_target_long arg)
345 tcg_out_modrm(s, 0x01 | (ARITH_XOR << 3), ret, ret); /* xor r0,r0 */
346 } else if (arg == (uint32_t)arg || type == TCG_TYPE_I32) {
347 tcg_out_opc(s, 0xb8 + (ret & 7), 0, ret, 0);
349 } else if (arg == (int32_t)arg) {
350 tcg_out_modrm(s, 0xc7 | P_REXW, 0, ret);
353 tcg_out_opc(s, (0xb8 + (ret & 7)) | P_REXW, 0, ret, 0);
355 tcg_out32(s, arg >> 32);
359 static inline void tcg_out_ld(TCGContext *s, int ret,
360 int arg1, tcg_target_long arg2)
362 tcg_out_modrm_offset(s, 0x8b | P_REXW, ret, arg1, arg2); /* movq */
365 static inline void tcg_out_st(TCGContext *s, int arg,
366 int arg1, tcg_target_long arg2)
368 tcg_out_modrm_offset(s, 0x89 | P_REXW, arg, arg1, arg2); /* movq */
371 static inline void tgen_arithi32(TCGContext *s, int c, int r0, int32_t val)
373 if (val == (int8_t)val) {
374 tcg_out_modrm(s, 0x83, c, r0);
377 tcg_out_modrm(s, 0x81, c, r0);
382 static inline void tgen_arithi64(TCGContext *s, int c, int r0, int64_t val)
384 if (val == (int8_t)val) {
385 tcg_out_modrm(s, 0x83 | P_REXW, c, r0);
387 } else if (val == (int32_t)val) {
388 tcg_out_modrm(s, 0x81 | P_REXW, c, r0);
390 } else if (c == ARITH_AND && val == (uint32_t)val) {
391 tcg_out_modrm(s, 0x81, c, r0);
398 void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val)
401 tgen_arithi64(s, ARITH_ADD, reg, val);
404 static void tcg_out_jxx(TCGContext *s, int opc, int label_index)
407 TCGLabel *l = &s->labels[label_index];
410 val = l->u.value - (tcg_target_long)s->code_ptr;
412 if ((int8_t)val1 == val1) {
416 tcg_out8(s, 0x70 + opc);
421 tcg_out32(s, val - 5);
424 tcg_out8(s, 0x80 + opc);
425 tcg_out32(s, val - 6);
433 tcg_out8(s, 0x80 + opc);
435 tcg_out_reloc(s, s->code_ptr, R_386_PC32, label_index, -4);
440 static void tcg_out_brcond(TCGContext *s, int cond,
441 TCGArg arg1, TCGArg arg2, int const_arg2,
442 int label_index, int rexw)
465 tcg_out_modrm(s, 0x85 | rexw, arg1, arg1);
466 tcg_out_jxx(s, c, label_index);
470 tgen_arithi64(s, ARITH_CMP, arg1, arg2);
472 tgen_arithi32(s, ARITH_CMP, arg1, arg2);
473 tcg_out_jxx(s, tcg_cond_to_jcc[cond], label_index);
476 tcg_out_modrm(s, 0x01 | (ARITH_CMP << 3) | rexw, arg2, arg1);
477 tcg_out_jxx(s, tcg_cond_to_jcc[cond], label_index);
481 #if defined(CONFIG_SOFTMMU)
482 extern void __ldb_mmu(void);
483 extern void __ldw_mmu(void);
484 extern void __ldl_mmu(void);
485 extern void __ldq_mmu(void);
487 extern void __stb_mmu(void);
488 extern void __stw_mmu(void);
489 extern void __stl_mmu(void);
490 extern void __stq_mmu(void);
493 static void *qemu_ld_helpers[4] = {
500 static void *qemu_st_helpers[4] = {
508 static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args,
511 int addr_reg, data_reg, r0, r1, mem_index, s_bits, bswap, rexw;
512 #if defined(CONFIG_SOFTMMU)
513 uint8_t *label1_ptr, *label2_ptr;
524 #if TARGET_LONG_BITS == 32
529 #if defined(CONFIG_SOFTMMU)
531 tcg_out_modrm(s, 0x8b | rexw, r1, addr_reg);
534 tcg_out_modrm(s, 0x8b | rexw, r0, addr_reg);
536 tcg_out_modrm(s, 0xc1 | rexw, 5, r1); /* shr $x, r1 */
537 tcg_out8(s, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS);
539 tcg_out_modrm(s, 0x81 | rexw, 4, r0); /* andl $x, r0 */
540 tcg_out32(s, TARGET_PAGE_MASK | ((1 << s_bits) - 1));
542 tcg_out_modrm(s, 0x81, 4, r1); /* andl $x, r1 */
543 tcg_out32(s, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
545 /* lea offset(r1, env), r1 */
546 tcg_out_modrm_offset2(s, 0x8d | P_REXW, r1, r1, TCG_AREG0, 0,
547 offsetof(CPUState, tlb_table[mem_index][0].addr_read));
550 tcg_out_modrm_offset(s, 0x3b | rexw, r0, r1, 0);
553 tcg_out_modrm(s, 0x8b | rexw, r0, addr_reg);
556 tcg_out8(s, 0x70 + JCC_JE);
557 label1_ptr = s->code_ptr;
560 /* XXX: move that code at the end of the TB */
561 tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_RSI, mem_index);
563 tcg_out32(s, (tcg_target_long)qemu_ld_helpers[s_bits] -
564 (tcg_target_long)s->code_ptr - 4);
569 tcg_out_modrm(s, 0xbe | P_EXT | P_REXW, data_reg, TCG_REG_RAX);
573 tcg_out_modrm(s, 0xbf | P_EXT | P_REXW, data_reg, TCG_REG_RAX);
577 tcg_out_modrm(s, 0x63 | P_REXW, data_reg, TCG_REG_RAX);
584 tcg_out_modrm(s, 0x8b, data_reg, TCG_REG_RAX);
587 tcg_out_mov(s, data_reg, TCG_REG_RAX);
593 label2_ptr = s->code_ptr;
597 *label1_ptr = s->code_ptr - label1_ptr - 1;
600 tcg_out_modrm_offset(s, 0x03 | P_REXW, r0, r1, offsetof(CPUTLBEntry, addend) -
601 offsetof(CPUTLBEntry, addr_read));
606 #ifdef TARGET_WORDS_BIGENDIAN
614 tcg_out_modrm_offset(s, 0xb6 | P_EXT, data_reg, r0, 0);
618 tcg_out_modrm_offset(s, 0xbe | P_EXT | rexw, data_reg, r0, 0);
622 tcg_out_modrm_offset(s, 0xb7 | P_EXT, data_reg, r0, 0);
624 /* rolw $8, data_reg */
626 tcg_out_modrm(s, 0xc1, 0, data_reg);
633 tcg_out_modrm_offset(s, 0xb7 | P_EXT, data_reg, r0, 0);
634 /* rolw $8, data_reg */
636 tcg_out_modrm(s, 0xc1, 0, data_reg);
639 /* movswX data_reg, data_reg */
640 tcg_out_modrm(s, 0xbf | P_EXT | rexw, data_reg, data_reg);
643 tcg_out_modrm_offset(s, 0xbf | P_EXT | rexw, data_reg, r0, 0);
647 /* movl (r0), data_reg */
648 tcg_out_modrm_offset(s, 0x8b, data_reg, r0, 0);
651 tcg_out_opc(s, (0xc8 + (data_reg & 7)) | P_EXT, 0, data_reg, 0);
656 /* movl (r0), data_reg */
657 tcg_out_modrm_offset(s, 0x8b, data_reg, r0, 0);
659 tcg_out_opc(s, (0xc8 + (data_reg & 7)) | P_EXT, 0, data_reg, 0);
661 tcg_out_modrm(s, 0x63 | P_REXW, data_reg, data_reg);
664 tcg_out_modrm_offset(s, 0x63 | P_REXW, data_reg, r0, 0);
668 /* movq (r0), data_reg */
669 tcg_out_modrm_offset(s, 0x8b | P_REXW, data_reg, r0, 0);
672 tcg_out_opc(s, (0xc8 + (data_reg & 7)) | P_EXT | P_REXW, 0, data_reg, 0);
679 #if defined(CONFIG_SOFTMMU)
681 *label2_ptr = s->code_ptr - label2_ptr - 1;
685 static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args,
688 int addr_reg, data_reg, r0, r1, mem_index, s_bits, bswap, rexw;
689 #if defined(CONFIG_SOFTMMU)
690 uint8_t *label1_ptr, *label2_ptr;
702 #if TARGET_LONG_BITS == 32
707 #if defined(CONFIG_SOFTMMU)
709 tcg_out_modrm(s, 0x8b | rexw, r1, addr_reg);
712 tcg_out_modrm(s, 0x8b | rexw, r0, addr_reg);
714 tcg_out_modrm(s, 0xc1 | rexw, 5, r1); /* shr $x, r1 */
715 tcg_out8(s, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS);
717 tcg_out_modrm(s, 0x81 | rexw, 4, r0); /* andl $x, r0 */
718 tcg_out32(s, TARGET_PAGE_MASK | ((1 << s_bits) - 1));
720 tcg_out_modrm(s, 0x81, 4, r1); /* andl $x, r1 */
721 tcg_out32(s, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
723 /* lea offset(r1, env), r1 */
724 tcg_out_modrm_offset2(s, 0x8d | P_REXW, r1, r1, TCG_AREG0, 0,
725 offsetof(CPUState, tlb_table[mem_index][0].addr_write));
728 tcg_out_modrm_offset(s, 0x3b | rexw, r0, r1, 0);
731 tcg_out_modrm(s, 0x8b | rexw, r0, addr_reg);
734 tcg_out8(s, 0x70 + JCC_JE);
735 label1_ptr = s->code_ptr;
738 /* XXX: move that code at the end of the TB */
742 tcg_out_modrm(s, 0xb6 | P_EXT, TCG_REG_RSI, data_reg);
746 tcg_out_modrm(s, 0xb7 | P_EXT, TCG_REG_RSI, data_reg);
750 tcg_out_modrm(s, 0x8b, TCG_REG_RSI, data_reg);
754 tcg_out_mov(s, TCG_REG_RSI, data_reg);
757 tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_RDX, mem_index);
759 tcg_out32(s, (tcg_target_long)qemu_st_helpers[s_bits] -
760 (tcg_target_long)s->code_ptr - 4);
764 label2_ptr = s->code_ptr;
768 *label1_ptr = s->code_ptr - label1_ptr - 1;
771 tcg_out_modrm_offset(s, 0x03 | P_REXW, r0, r1, offsetof(CPUTLBEntry, addend) -
772 offsetof(CPUTLBEntry, addr_write));
777 #ifdef TARGET_WORDS_BIGENDIAN
785 tcg_out_modrm_offset(s, 0x88 | P_REX, data_reg, r0, 0);
789 tcg_out_modrm(s, 0x8b, r1, data_reg); /* movl */
790 tcg_out8(s, 0x66); /* rolw $8, %ecx */
791 tcg_out_modrm(s, 0xc1, 0, r1);
797 tcg_out_modrm_offset(s, 0x89, data_reg, r0, 0);
801 tcg_out_modrm(s, 0x8b, r1, data_reg); /* movl */
803 tcg_out_opc(s, (0xc8 + r1) | P_EXT, 0, r1, 0);
807 tcg_out_modrm_offset(s, 0x89, data_reg, r0, 0);
811 tcg_out_mov(s, r1, data_reg);
813 tcg_out_opc(s, (0xc8 + r1) | P_EXT | P_REXW, 0, r1, 0);
817 tcg_out_modrm_offset(s, 0x89 | P_REXW, data_reg, r0, 0);
823 #if defined(CONFIG_SOFTMMU)
825 *label2_ptr = s->code_ptr - label2_ptr - 1;
829 static inline void tcg_out_op(TCGContext *s, int opc, const TCGArg *args,
830 const int *const_args)
835 case INDEX_op_exit_tb:
836 tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_RAX, args[0]);
837 tcg_out8(s, 0xc3); /* ret */
839 case INDEX_op_goto_tb:
840 if (s->tb_jmp_offset) {
841 /* direct jump method */
842 tcg_out8(s, 0xe9); /* jmp im */
843 s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
846 /* indirect jump method */
848 tcg_out_modrm_offset(s, 0xff, 4, -1,
849 (tcg_target_long)(s->tb_next +
852 s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
857 tcg_out32(s, args[0] - (tcg_target_long)s->code_ptr - 4);
859 tcg_out_modrm(s, 0xff, 2, args[0]);
865 tcg_out32(s, args[0] - (tcg_target_long)s->code_ptr - 4);
867 tcg_out_modrm(s, 0xff, 4, args[0]);
871 tcg_out_jxx(s, JCC_JMP, args[0]);
873 case INDEX_op_movi_i32:
874 tcg_out_movi(s, TCG_TYPE_I32, args[0], (uint32_t)args[1]);
876 case INDEX_op_movi_i64:
877 tcg_out_movi(s, TCG_TYPE_I64, args[0], args[1]);
879 case INDEX_op_ld8u_i32:
880 case INDEX_op_ld8u_i64:
882 tcg_out_modrm_offset(s, 0xb6 | P_EXT, args[0], args[1], args[2]);
884 case INDEX_op_ld8s_i32:
886 tcg_out_modrm_offset(s, 0xbe | P_EXT, args[0], args[1], args[2]);
888 case INDEX_op_ld8s_i64:
890 tcg_out_modrm_offset(s, 0xbe | P_EXT | P_REXW, args[0], args[1], args[2]);
892 case INDEX_op_ld16u_i32:
893 case INDEX_op_ld16u_i64:
895 tcg_out_modrm_offset(s, 0xb7 | P_EXT, args[0], args[1], args[2]);
897 case INDEX_op_ld16s_i32:
899 tcg_out_modrm_offset(s, 0xbf | P_EXT, args[0], args[1], args[2]);
901 case INDEX_op_ld16s_i64:
903 tcg_out_modrm_offset(s, 0xbf | P_EXT | P_REXW, args[0], args[1], args[2]);
905 case INDEX_op_ld_i32:
906 case INDEX_op_ld32u_i64:
908 tcg_out_modrm_offset(s, 0x8b, args[0], args[1], args[2]);
910 case INDEX_op_ld32s_i64:
912 tcg_out_modrm_offset(s, 0x63 | P_REXW, args[0], args[1], args[2]);
914 case INDEX_op_ld_i64:
916 tcg_out_modrm_offset(s, 0x8b | P_REXW, args[0], args[1], args[2]);
919 case INDEX_op_st8_i32:
920 case INDEX_op_st8_i64:
922 tcg_out_modrm_offset(s, 0x88 | P_REX, args[0], args[1], args[2]);
924 case INDEX_op_st16_i32:
925 case INDEX_op_st16_i64:
928 tcg_out_modrm_offset(s, 0x89, args[0], args[1], args[2]);
930 case INDEX_op_st_i32:
931 case INDEX_op_st32_i64:
933 tcg_out_modrm_offset(s, 0x89, args[0], args[1], args[2]);
935 case INDEX_op_st_i64:
937 tcg_out_modrm_offset(s, 0x89 | P_REXW, args[0], args[1], args[2]);
940 case INDEX_op_sub_i32:
943 case INDEX_op_and_i32:
946 case INDEX_op_or_i32:
949 case INDEX_op_xor_i32:
952 case INDEX_op_add_i32:
956 tgen_arithi32(s, c, args[0], args[2]);
958 tcg_out_modrm(s, 0x01 | (c << 3), args[2], args[0]);
962 case INDEX_op_sub_i64:
965 case INDEX_op_and_i64:
968 case INDEX_op_or_i64:
971 case INDEX_op_xor_i64:
974 case INDEX_op_add_i64:
978 tgen_arithi64(s, c, args[0], args[2]);
980 tcg_out_modrm(s, 0x01 | (c << 3) | P_REXW, args[2], args[0]);
984 case INDEX_op_mul_i32:
988 if (val == (int8_t)val) {
989 tcg_out_modrm(s, 0x6b, args[0], args[0]);
992 tcg_out_modrm(s, 0x69, args[0], args[0]);
996 tcg_out_modrm(s, 0xaf | P_EXT, args[0], args[2]);
999 case INDEX_op_mul_i64:
1000 if (const_args[2]) {
1003 if (val == (int8_t)val) {
1004 tcg_out_modrm(s, 0x6b | P_REXW, args[0], args[0]);
1007 tcg_out_modrm(s, 0x69 | P_REXW, args[0], args[0]);
1011 tcg_out_modrm(s, 0xaf | P_EXT | P_REXW, args[0], args[2]);
1014 case INDEX_op_div2_i32:
1015 tcg_out_modrm(s, 0xf7, 7, args[4]);
1017 case INDEX_op_divu2_i32:
1018 tcg_out_modrm(s, 0xf7, 6, args[4]);
1020 case INDEX_op_div2_i64:
1021 tcg_out_modrm(s, 0xf7 | P_REXW, 7, args[4]);
1023 case INDEX_op_divu2_i64:
1024 tcg_out_modrm(s, 0xf7 | P_REXW, 6, args[4]);
1027 case INDEX_op_shl_i32:
1030 if (const_args[2]) {
1032 tcg_out_modrm(s, 0xd1, c, args[0]);
1034 tcg_out_modrm(s, 0xc1, c, args[0]);
1035 tcg_out8(s, args[2]);
1038 tcg_out_modrm(s, 0xd3, c, args[0]);
1041 case INDEX_op_shr_i32:
1044 case INDEX_op_sar_i32:
1048 case INDEX_op_shl_i64:
1051 if (const_args[2]) {
1053 tcg_out_modrm(s, 0xd1 | P_REXW, c, args[0]);
1055 tcg_out_modrm(s, 0xc1 | P_REXW, c, args[0]);
1056 tcg_out8(s, args[2]);
1059 tcg_out_modrm(s, 0xd3 | P_REXW, c, args[0]);
1062 case INDEX_op_shr_i64:
1065 case INDEX_op_sar_i64:
1069 case INDEX_op_brcond_i32:
1070 tcg_out_brcond(s, args[2], args[0], args[1], const_args[1],
1073 case INDEX_op_brcond_i64:
1074 tcg_out_brcond(s, args[2], args[0], args[1], const_args[1],
1078 case INDEX_op_bswap_i32:
1079 tcg_out_opc(s, (0xc8 + (args[0] & 7)) | P_EXT, 0, args[0], 0);
1081 case INDEX_op_bswap_i64:
1082 tcg_out_opc(s, (0xc8 + (args[0] & 7)) | P_EXT | P_REXW, 0, args[0], 0);
1085 case INDEX_op_qemu_ld8u:
1086 tcg_out_qemu_ld(s, args, 0);
1088 case INDEX_op_qemu_ld8s:
1089 tcg_out_qemu_ld(s, args, 0 | 4);
1091 case INDEX_op_qemu_ld16u:
1092 tcg_out_qemu_ld(s, args, 1);
1094 case INDEX_op_qemu_ld16s:
1095 tcg_out_qemu_ld(s, args, 1 | 4);
1097 case INDEX_op_qemu_ld32u:
1098 tcg_out_qemu_ld(s, args, 2);
1100 case INDEX_op_qemu_ld32s:
1101 tcg_out_qemu_ld(s, args, 2 | 4);
1103 case INDEX_op_qemu_ld64:
1104 tcg_out_qemu_ld(s, args, 3);
1107 case INDEX_op_qemu_st8:
1108 tcg_out_qemu_st(s, args, 0);
1110 case INDEX_op_qemu_st16:
1111 tcg_out_qemu_st(s, args, 1);
1113 case INDEX_op_qemu_st32:
1114 tcg_out_qemu_st(s, args, 2);
1116 case INDEX_op_qemu_st64:
1117 tcg_out_qemu_st(s, args, 3);
1125 static const TCGTargetOpDef x86_64_op_defs[] = {
1126 { INDEX_op_exit_tb, { } },
1127 { INDEX_op_goto_tb, { } },
1128 { INDEX_op_call, { "ri" } }, /* XXX: might need a specific constant constraint */
1129 { INDEX_op_jmp, { "ri" } }, /* XXX: might need a specific constant constraint */
1130 { INDEX_op_br, { } },
1132 { INDEX_op_mov_i32, { "r", "r" } },
1133 { INDEX_op_movi_i32, { "r" } },
1134 { INDEX_op_ld8u_i32, { "r", "r" } },
1135 { INDEX_op_ld8s_i32, { "r", "r" } },
1136 { INDEX_op_ld16u_i32, { "r", "r" } },
1137 { INDEX_op_ld16s_i32, { "r", "r" } },
1138 { INDEX_op_ld_i32, { "r", "r" } },
1139 { INDEX_op_st8_i32, { "r", "r" } },
1140 { INDEX_op_st16_i32, { "r", "r" } },
1141 { INDEX_op_st_i32, { "r", "r" } },
1143 { INDEX_op_add_i32, { "r", "0", "ri" } },
1144 { INDEX_op_mul_i32, { "r", "0", "ri" } },
1145 { INDEX_op_div2_i32, { "a", "d", "0", "1", "r" } },
1146 { INDEX_op_divu2_i32, { "a", "d", "0", "1", "r" } },
1147 { INDEX_op_sub_i32, { "r", "0", "ri" } },
1148 { INDEX_op_and_i32, { "r", "0", "ri" } },
1149 { INDEX_op_or_i32, { "r", "0", "ri" } },
1150 { INDEX_op_xor_i32, { "r", "0", "ri" } },
1152 { INDEX_op_shl_i32, { "r", "0", "ci" } },
1153 { INDEX_op_shr_i32, { "r", "0", "ci" } },
1154 { INDEX_op_sar_i32, { "r", "0", "ci" } },
1156 { INDEX_op_brcond_i32, { "r", "ri" } },
1158 { INDEX_op_mov_i64, { "r", "r" } },
1159 { INDEX_op_movi_i64, { "r" } },
1160 { INDEX_op_ld8u_i64, { "r", "r" } },
1161 { INDEX_op_ld8s_i64, { "r", "r" } },
1162 { INDEX_op_ld16u_i64, { "r", "r" } },
1163 { INDEX_op_ld16s_i64, { "r", "r" } },
1164 { INDEX_op_ld32u_i64, { "r", "r" } },
1165 { INDEX_op_ld32s_i64, { "r", "r" } },
1166 { INDEX_op_ld_i64, { "r", "r" } },
1167 { INDEX_op_st8_i64, { "r", "r" } },
1168 { INDEX_op_st16_i64, { "r", "r" } },
1169 { INDEX_op_st32_i64, { "r", "r" } },
1170 { INDEX_op_st_i64, { "r", "r" } },
1172 { INDEX_op_add_i64, { "r", "0", "re" } },
1173 { INDEX_op_mul_i64, { "r", "0", "re" } },
1174 { INDEX_op_div2_i64, { "a", "d", "0", "1", "r" } },
1175 { INDEX_op_divu2_i64, { "a", "d", "0", "1", "r" } },
1176 { INDEX_op_sub_i64, { "r", "0", "re" } },
1177 { INDEX_op_and_i64, { "r", "0", "reZ" } },
1178 { INDEX_op_or_i64, { "r", "0", "re" } },
1179 { INDEX_op_xor_i64, { "r", "0", "re" } },
1181 { INDEX_op_shl_i64, { "r", "0", "ci" } },
1182 { INDEX_op_shr_i64, { "r", "0", "ci" } },
1183 { INDEX_op_sar_i64, { "r", "0", "ci" } },
1185 { INDEX_op_brcond_i64, { "r", "re" } },
1187 { INDEX_op_bswap_i32, { "r", "0" } },
1188 { INDEX_op_bswap_i64, { "r", "0" } },
1190 { INDEX_op_qemu_ld8u, { "r", "L" } },
1191 { INDEX_op_qemu_ld8s, { "r", "L" } },
1192 { INDEX_op_qemu_ld16u, { "r", "L" } },
1193 { INDEX_op_qemu_ld16s, { "r", "L" } },
1194 { INDEX_op_qemu_ld32u, { "r", "L" } },
1195 { INDEX_op_qemu_ld32s, { "r", "L" } },
1196 { INDEX_op_qemu_ld64, { "r", "L" } },
1198 { INDEX_op_qemu_st8, { "L", "L" } },
1199 { INDEX_op_qemu_st16, { "L", "L" } },
1200 { INDEX_op_qemu_st32, { "L", "L" } },
1201 { INDEX_op_qemu_st64, { "L", "L", "L" } },
1206 void tcg_target_init(TCGContext *s)
1208 tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffff);
1209 tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffff);
1210 tcg_regset_set32(tcg_target_call_clobber_regs, 0,
1211 (1 << TCG_REG_RDI) |
1212 (1 << TCG_REG_RSI) |
1213 (1 << TCG_REG_RDX) |
1214 (1 << TCG_REG_RCX) |
1217 (1 << TCG_REG_RAX) |
1218 (1 << TCG_REG_R10) |
1219 (1 << TCG_REG_R11));
1221 tcg_regset_clear(s->reserved_regs);
1222 tcg_regset_set_reg(s->reserved_regs, TCG_REG_RSP);
1223 /* XXX: will be suppresed when proper global TB entry code will be
1225 tcg_regset_set_reg(s->reserved_regs, TCG_REG_RBX);
1226 tcg_regset_set_reg(s->reserved_regs, TCG_REG_RBP);
1228 tcg_add_target_add_op_defs(x86_64_op_defs);