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* Tiny Code Generator for QEMU
4
* Copyright (c) 2008 Fabrice Bellard
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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const char *tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
43
int tcg_target_reg_alloc_order[TCG_TARGET_NB_REGS] = {
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const int tcg_target_call_iarg_regs[6] = {
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const int tcg_target_call_oarg_regs[2] = {
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static void patch_reloc(uint8_t *code_ptr, int type,
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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);
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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] = {
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[TCG_COND_EQ] = JCC_JE,
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[TCG_COND_NE] = JCC_JNE,
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[TCG_COND_LT] = JCC_JL,
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[TCG_COND_GE] = JCC_JGE,
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[TCG_COND_LE] = JCC_JLE,
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[TCG_COND_GT] = JCC_JG,
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[TCG_COND_LTU] = JCC_JB,
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[TCG_COND_GEU] = JCC_JAE,
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[TCG_COND_LEU] = JCC_JBE,
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[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);
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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
/* XXX: incomplete. index must be different from ESP */
298
static void tcg_out_modrm_offset2(TCGContext *s, int opc, int r, int rm,
299
int index, int shift,
300
tcg_target_long offset)
305
if (offset == 0 && (rm & 7) != TCG_REG_RBP) {
307
} else if (offset == (int8_t)offset) {
309
} else if (offset == (int32_t)offset) {
315
tcg_out_opc(s, opc, r, rm, 0);
316
if ((rm & 7) == TCG_REG_RSP) {
317
tcg_out8(s, mod | ((r & 7) << 3) | 0x04);
318
tcg_out8(s, 0x04 | (rm & 7));
320
tcg_out8(s, mod | ((r & 7) << 3) | (rm & 7));
323
tcg_out_opc(s, opc, r, rm, index);
324
tcg_out8(s, mod | ((r & 7) << 3) | 0x04);
325
tcg_out8(s, (shift << 6) | ((index & 7) << 3) | (rm & 7));
329
} else if (mod == 0x80) {
330
tcg_out32(s, offset);
334
static inline void tcg_out_mov(TCGContext *s, int ret, int arg)
336
tcg_out_modrm(s, 0x8b | P_REXW, ret, arg);
339
static inline void tcg_out_movi(TCGContext *s, TCGType type,
340
int ret, tcg_target_long arg)
343
tcg_out_modrm(s, 0x01 | (ARITH_XOR << 3), ret, ret); /* xor r0,r0 */
344
} else if (arg == (uint32_t)arg || type == TCG_TYPE_I32) {
345
tcg_out_opc(s, 0xb8 + (ret & 7), 0, ret, 0);
347
} else if (arg == (int32_t)arg) {
348
tcg_out_modrm(s, 0xc7 | P_REXW, 0, ret);
351
tcg_out_opc(s, (0xb8 + (ret & 7)) | P_REXW, 0, ret, 0);
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tcg_out32(s, arg >> 32);
357
static inline void tcg_out_ld(TCGContext *s, int ret,
358
int arg1, tcg_target_long arg2)
360
tcg_out_modrm_offset(s, 0x8b | P_REXW, ret, arg1, arg2); /* movq */
363
static inline void tcg_out_st(TCGContext *s, int arg,
364
int arg1, tcg_target_long arg2)
366
tcg_out_modrm_offset(s, 0x89 | P_REXW, arg, arg1, arg2); /* movq */
369
static inline void tgen_arithi32(TCGContext *s, int c, int r0, int32_t val)
371
if (val == (int8_t)val) {
372
tcg_out_modrm(s, 0x83, c, r0);
375
tcg_out_modrm(s, 0x81, c, r0);
380
static inline void tgen_arithi64(TCGContext *s, int c, int r0, int64_t val)
382
if (val == (int8_t)val) {
383
tcg_out_modrm(s, 0x83 | P_REXW, c, r0);
385
} else if (val == (int32_t)val) {
386
tcg_out_modrm(s, 0x81 | P_REXW, c, r0);
388
} else if (c == ARITH_AND && val == (uint32_t)val) {
389
tcg_out_modrm(s, 0x81, c, r0);
396
void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val)
399
tgen_arithi64(s, ARITH_ADD, reg, val);
402
static void tcg_out_jxx(TCGContext *s, int opc, int label_index)
405
TCGLabel *l = &s->labels[label_index];
408
val = l->u.value - (tcg_target_long)s->code_ptr;
410
if ((int8_t)val1 == val1) {
414
tcg_out8(s, 0x70 + opc);
419
tcg_out32(s, val - 5);
422
tcg_out8(s, 0x80 + opc);
423
tcg_out32(s, val - 6);
431
tcg_out8(s, 0x80 + opc);
433
tcg_out_reloc(s, s->code_ptr, R_386_PC32, label_index, -4);
438
static void tcg_out_brcond(TCGContext *s, int cond,
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TCGArg arg1, TCGArg arg2, int const_arg2,
440
int label_index, int rexw)
463
tcg_out_modrm(s, 0x85 | rexw, arg1, arg1);
464
tcg_out_jxx(s, c, label_index);
468
tgen_arithi64(s, ARITH_CMP, arg1, arg2);
470
tgen_arithi32(s, ARITH_CMP, arg1, arg2);
471
tcg_out_jxx(s, tcg_cond_to_jcc[cond], label_index);
474
tcg_out_modrm(s, 0x01 | (ARITH_CMP << 3) | rexw, arg2, arg1);
475
tcg_out_jxx(s, tcg_cond_to_jcc[cond], label_index);
479
#if defined(CONFIG_SOFTMMU)
480
extern void __ldb_mmu(void);
481
extern void __ldw_mmu(void);
482
extern void __ldl_mmu(void);
483
extern void __ldq_mmu(void);
485
extern void __stb_mmu(void);
486
extern void __stw_mmu(void);
487
extern void __stl_mmu(void);
488
extern void __stq_mmu(void);
491
static void *qemu_ld_helpers[4] = {
498
static void *qemu_st_helpers[4] = {
506
static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args,
509
int addr_reg, data_reg, r0, r1, mem_index, s_bits, bswap, rexw;
510
#if defined(CONFIG_SOFTMMU)
511
uint8_t *label1_ptr, *label2_ptr;
522
#if TARGET_LONG_BITS == 32
527
#if defined(CONFIG_SOFTMMU)
529
tcg_out_modrm(s, 0x8b | rexw, r1, addr_reg);
532
tcg_out_modrm(s, 0x8b | rexw, r0, addr_reg);
534
tcg_out_modrm(s, 0xc1 | rexw, 5, r1); /* shr $x, r1 */
535
tcg_out8(s, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS);
537
tcg_out_modrm(s, 0x81 | rexw, 4, r0); /* andl $x, r0 */
538
tcg_out32(s, TARGET_PAGE_MASK | ((1 << s_bits) - 1));
540
tcg_out_modrm(s, 0x81, 4, r1); /* andl $x, r1 */
541
tcg_out32(s, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
543
/* lea offset(r1, env), r1 */
544
tcg_out_modrm_offset2(s, 0x8d | P_REXW, r1, r1, TCG_AREG0, 0,
545
offsetof(CPUState, tlb_table[mem_index][0].addr_read));
548
tcg_out_modrm_offset(s, 0x3b | rexw, r0, r1, 0);
551
tcg_out_modrm(s, 0x8b | rexw, r0, addr_reg);
554
tcg_out8(s, 0x70 + JCC_JE);
555
label1_ptr = s->code_ptr;
558
/* XXX: move that code at the end of the TB */
559
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_RSI, mem_index);
561
tcg_out32(s, (tcg_target_long)qemu_ld_helpers[s_bits] -
562
(tcg_target_long)s->code_ptr - 4);
567
tcg_out_modrm(s, 0xbe | P_EXT | P_REXW, data_reg, TCG_REG_RAX);
571
tcg_out_modrm(s, 0xbf | P_EXT | P_REXW, data_reg, TCG_REG_RAX);
575
tcg_out_modrm(s, 0x63 | P_REXW, data_reg, TCG_REG_RAX);
582
tcg_out_modrm(s, 0x8b, data_reg, TCG_REG_RAX);
585
tcg_out_mov(s, data_reg, TCG_REG_RAX);
591
label2_ptr = s->code_ptr;
595
*label1_ptr = s->code_ptr - label1_ptr - 1;
598
tcg_out_modrm_offset(s, 0x03 | P_REXW, r0, r1, offsetof(CPUTLBEntry, addend) -
599
offsetof(CPUTLBEntry, addr_read));
604
#ifdef TARGET_WORDS_BIGENDIAN
612
tcg_out_modrm_offset(s, 0xb6 | P_EXT, data_reg, r0, 0);
616
tcg_out_modrm_offset(s, 0xbe | P_EXT | rexw, data_reg, r0, 0);
620
tcg_out_modrm_offset(s, 0xb7 | P_EXT, data_reg, r0, 0);
622
/* rolw $8, data_reg */
624
tcg_out_modrm(s, 0xc1, 0, data_reg);
631
tcg_out_modrm_offset(s, 0xb7 | P_EXT, data_reg, r0, 0);
632
/* rolw $8, data_reg */
634
tcg_out_modrm(s, 0xc1, 0, data_reg);
637
/* movswX data_reg, data_reg */
638
tcg_out_modrm(s, 0xbf | P_EXT | rexw, data_reg, data_reg);
641
tcg_out_modrm_offset(s, 0xbf | P_EXT | rexw, data_reg, r0, 0);
645
/* movl (r0), data_reg */
646
tcg_out_modrm_offset(s, 0x8b, data_reg, r0, 0);
649
tcg_out_opc(s, (0xc8 + (data_reg & 7)) | P_EXT, 0, data_reg, 0);
654
/* movl (r0), data_reg */
655
tcg_out_modrm_offset(s, 0x8b, data_reg, r0, 0);
657
tcg_out_opc(s, (0xc8 + (data_reg & 7)) | P_EXT, 0, data_reg, 0);
659
tcg_out_modrm(s, 0x63 | P_REXW, data_reg, data_reg);
662
tcg_out_modrm_offset(s, 0x63 | P_REXW, data_reg, r0, 0);
666
/* movq (r0), data_reg */
667
tcg_out_modrm_offset(s, 0x8b | P_REXW, data_reg, r0, 0);
670
tcg_out_opc(s, (0xc8 + (data_reg & 7)) | P_EXT | P_REXW, 0, data_reg, 0);
677
#if defined(CONFIG_SOFTMMU)
679
*label2_ptr = s->code_ptr - label2_ptr - 1;
683
static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args,
686
int addr_reg, data_reg, r0, r1, mem_index, s_bits, bswap, rexw;
687
#if defined(CONFIG_SOFTMMU)
688
uint8_t *label1_ptr, *label2_ptr;
700
#if TARGET_LONG_BITS == 32
705
#if defined(CONFIG_SOFTMMU)
707
tcg_out_modrm(s, 0x8b | rexw, r1, addr_reg);
710
tcg_out_modrm(s, 0x8b | rexw, r0, addr_reg);
712
tcg_out_modrm(s, 0xc1 | rexw, 5, r1); /* shr $x, r1 */
713
tcg_out8(s, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS);
715
tcg_out_modrm(s, 0x81 | rexw, 4, r0); /* andl $x, r0 */
716
tcg_out32(s, TARGET_PAGE_MASK | ((1 << s_bits) - 1));
718
tcg_out_modrm(s, 0x81, 4, r1); /* andl $x, r1 */
719
tcg_out32(s, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
721
/* lea offset(r1, env), r1 */
722
tcg_out_modrm_offset2(s, 0x8d | P_REXW, r1, r1, TCG_AREG0, 0,
723
offsetof(CPUState, tlb_table[mem_index][0].addr_write));
726
tcg_out_modrm_offset(s, 0x3b | rexw, r0, r1, 0);
729
tcg_out_modrm(s, 0x8b | rexw, r0, addr_reg);
732
tcg_out8(s, 0x70 + JCC_JE);
733
label1_ptr = s->code_ptr;
736
/* XXX: move that code at the end of the TB */
740
tcg_out_modrm(s, 0xb6 | P_EXT, TCG_REG_RSI, data_reg);
744
tcg_out_modrm(s, 0xb7 | P_EXT, TCG_REG_RSI, data_reg);
748
tcg_out_modrm(s, 0x8b, TCG_REG_RSI, data_reg);
752
tcg_out_mov(s, TCG_REG_RSI, data_reg);
755
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_RDX, mem_index);
757
tcg_out32(s, (tcg_target_long)qemu_st_helpers[s_bits] -
758
(tcg_target_long)s->code_ptr - 4);
762
label2_ptr = s->code_ptr;
766
*label1_ptr = s->code_ptr - label1_ptr - 1;
769
tcg_out_modrm_offset(s, 0x03 | P_REXW, r0, r1, offsetof(CPUTLBEntry, addend) -
770
offsetof(CPUTLBEntry, addr_write));
775
#ifdef TARGET_WORDS_BIGENDIAN
783
tcg_out_modrm_offset(s, 0x88 | P_REX, data_reg, r0, 0);
787
tcg_out_modrm(s, 0x8b, r1, data_reg); /* movl */
788
tcg_out8(s, 0x66); /* rolw $8, %ecx */
789
tcg_out_modrm(s, 0xc1, 0, r1);
795
tcg_out_modrm_offset(s, 0x89, data_reg, r0, 0);
799
tcg_out_modrm(s, 0x8b, r1, data_reg); /* movl */
801
tcg_out_opc(s, (0xc8 + r1) | P_EXT, 0, r1, 0);
805
tcg_out_modrm_offset(s, 0x89, data_reg, r0, 0);
809
tcg_out_mov(s, r1, data_reg);
811
tcg_out_opc(s, (0xc8 + r1) | P_EXT | P_REXW, 0, r1, 0);
815
tcg_out_modrm_offset(s, 0x89 | P_REXW, data_reg, r0, 0);
821
#if defined(CONFIG_SOFTMMU)
823
*label2_ptr = s->code_ptr - label2_ptr - 1;
827
static inline void tcg_out_op(TCGContext *s, int opc, const TCGArg *args,
828
const int *const_args)
833
case INDEX_op_exit_tb:
834
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_RAX, args[0]);
835
tcg_out8(s, 0xc3); /* ret */
837
case INDEX_op_goto_tb:
838
if (s->tb_jmp_offset) {
839
/* direct jump method */
840
tcg_out8(s, 0xe9); /* jmp im */
841
s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
844
/* indirect jump method */
846
tcg_out_modrm_offset(s, 0xff, 4, -1,
847
(tcg_target_long)(s->tb_next +
850
s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
855
tcg_out32(s, args[0] - (tcg_target_long)s->code_ptr - 4);
857
tcg_out_modrm(s, 0xff, 2, args[0]);
863
tcg_out32(s, args[0] - (tcg_target_long)s->code_ptr - 4);
865
tcg_out_modrm(s, 0xff, 4, args[0]);
869
tcg_out_jxx(s, JCC_JMP, args[0]);
871
case INDEX_op_movi_i32:
872
tcg_out_movi(s, TCG_TYPE_I32, args[0], (uint32_t)args[1]);
874
case INDEX_op_movi_i64:
875
tcg_out_movi(s, TCG_TYPE_I64, args[0], args[1]);
877
case INDEX_op_ld8u_i32:
878
case INDEX_op_ld8u_i64:
880
tcg_out_modrm_offset(s, 0xb6 | P_EXT, args[0], args[1], args[2]);
882
case INDEX_op_ld8s_i32:
884
tcg_out_modrm_offset(s, 0xbe | P_EXT, args[0], args[1], args[2]);
886
case INDEX_op_ld8s_i64:
888
tcg_out_modrm_offset(s, 0xbe | P_EXT | P_REXW, args[0], args[1], args[2]);
890
case INDEX_op_ld16u_i32:
891
case INDEX_op_ld16u_i64:
893
tcg_out_modrm_offset(s, 0xb7 | P_EXT, args[0], args[1], args[2]);
895
case INDEX_op_ld16s_i32:
897
tcg_out_modrm_offset(s, 0xbf | P_EXT, args[0], args[1], args[2]);
899
case INDEX_op_ld16s_i64:
901
tcg_out_modrm_offset(s, 0xbf | P_EXT | P_REXW, args[0], args[1], args[2]);
903
case INDEX_op_ld_i32:
904
case INDEX_op_ld32u_i64:
906
tcg_out_modrm_offset(s, 0x8b, args[0], args[1], args[2]);
908
case INDEX_op_ld32s_i64:
910
tcg_out_modrm_offset(s, 0x63 | P_REXW, args[0], args[1], args[2]);
912
case INDEX_op_ld_i64:
914
tcg_out_modrm_offset(s, 0x8b | P_REXW, args[0], args[1], args[2]);
917
case INDEX_op_st8_i32:
918
case INDEX_op_st8_i64:
920
tcg_out_modrm_offset(s, 0x88 | P_REX, args[0], args[1], args[2]);
922
case INDEX_op_st16_i32:
923
case INDEX_op_st16_i64:
926
tcg_out_modrm_offset(s, 0x89, args[0], args[1], args[2]);
928
case INDEX_op_st_i32:
929
case INDEX_op_st32_i64:
931
tcg_out_modrm_offset(s, 0x89, args[0], args[1], args[2]);
933
case INDEX_op_st_i64:
935
tcg_out_modrm_offset(s, 0x89 | P_REXW, args[0], args[1], args[2]);
938
case INDEX_op_sub_i32:
941
case INDEX_op_and_i32:
944
case INDEX_op_or_i32:
947
case INDEX_op_xor_i32:
950
case INDEX_op_add_i32:
954
tgen_arithi32(s, c, args[0], args[2]);
956
tcg_out_modrm(s, 0x01 | (c << 3), args[2], args[0]);
960
case INDEX_op_sub_i64:
963
case INDEX_op_and_i64:
966
case INDEX_op_or_i64:
969
case INDEX_op_xor_i64:
972
case INDEX_op_add_i64:
976
tgen_arithi64(s, c, args[0], args[2]);
978
tcg_out_modrm(s, 0x01 | (c << 3) | P_REXW, args[2], args[0]);
982
case INDEX_op_mul_i32:
986
if (val == (int8_t)val) {
987
tcg_out_modrm(s, 0x6b, args[0], args[0]);
990
tcg_out_modrm(s, 0x69, args[0], args[0]);
994
tcg_out_modrm(s, 0xaf | P_EXT, args[0], args[2]);
997
case INDEX_op_mul_i64:
1001
if (val == (int8_t)val) {
1002
tcg_out_modrm(s, 0x6b | P_REXW, args[0], args[0]);
1005
tcg_out_modrm(s, 0x69 | P_REXW, args[0], args[0]);
1009
tcg_out_modrm(s, 0xaf | P_EXT | P_REXW, args[0], args[2]);
1012
case INDEX_op_div2_i32:
1013
tcg_out_modrm(s, 0xf7, 7, args[4]);
1015
case INDEX_op_divu2_i32:
1016
tcg_out_modrm(s, 0xf7, 6, args[4]);
1018
case INDEX_op_div2_i64:
1019
tcg_out_modrm(s, 0xf7 | P_REXW, 7, args[4]);
1021
case INDEX_op_divu2_i64:
1022
tcg_out_modrm(s, 0xf7 | P_REXW, 6, args[4]);
1025
case INDEX_op_shl_i32:
1028
if (const_args[2]) {
1030
tcg_out_modrm(s, 0xd1, c, args[0]);
1032
tcg_out_modrm(s, 0xc1, c, args[0]);
1033
tcg_out8(s, args[2]);
1036
tcg_out_modrm(s, 0xd3, c, args[0]);
1039
case INDEX_op_shr_i32:
1042
case INDEX_op_sar_i32:
1046
case INDEX_op_shl_i64:
1049
if (const_args[2]) {
1051
tcg_out_modrm(s, 0xd1 | P_REXW, c, args[0]);
1053
tcg_out_modrm(s, 0xc1 | P_REXW, c, args[0]);
1054
tcg_out8(s, args[2]);
1057
tcg_out_modrm(s, 0xd3 | P_REXW, c, args[0]);
1060
case INDEX_op_shr_i64:
1063
case INDEX_op_sar_i64:
1067
case INDEX_op_brcond_i32:
1068
tcg_out_brcond(s, args[2], args[0], args[1], const_args[1],
1071
case INDEX_op_brcond_i64:
1072
tcg_out_brcond(s, args[2], args[0], args[1], const_args[1],
1076
case INDEX_op_bswap_i32:
1077
tcg_out_opc(s, (0xc8 + (args[0] & 7)) | P_EXT, 0, args[0], 0);
1079
case INDEX_op_bswap_i64:
1080
tcg_out_opc(s, (0xc8 + (args[0] & 7)) | P_EXT | P_REXW, 0, args[0], 0);
1083
case INDEX_op_qemu_ld8u:
1084
tcg_out_qemu_ld(s, args, 0);
1086
case INDEX_op_qemu_ld8s:
1087
tcg_out_qemu_ld(s, args, 0 | 4);
1089
case INDEX_op_qemu_ld16u:
1090
tcg_out_qemu_ld(s, args, 1);
1092
case INDEX_op_qemu_ld16s:
1093
tcg_out_qemu_ld(s, args, 1 | 4);
1095
case INDEX_op_qemu_ld32u:
1096
tcg_out_qemu_ld(s, args, 2);
1098
case INDEX_op_qemu_ld32s:
1099
tcg_out_qemu_ld(s, args, 2 | 4);
1101
case INDEX_op_qemu_ld64:
1102
tcg_out_qemu_ld(s, args, 3);
1105
case INDEX_op_qemu_st8:
1106
tcg_out_qemu_st(s, args, 0);
1108
case INDEX_op_qemu_st16:
1109
tcg_out_qemu_st(s, args, 1);
1111
case INDEX_op_qemu_st32:
1112
tcg_out_qemu_st(s, args, 2);
1114
case INDEX_op_qemu_st64:
1115
tcg_out_qemu_st(s, args, 3);
1123
static const TCGTargetOpDef x86_64_op_defs[] = {
1124
{ INDEX_op_exit_tb, { } },
1125
{ INDEX_op_goto_tb, { } },
1126
{ INDEX_op_call, { "ri" } }, /* XXX: might need a specific constant constraint */
1127
{ INDEX_op_jmp, { "ri" } }, /* XXX: might need a specific constant constraint */
1128
{ INDEX_op_br, { } },
1130
{ INDEX_op_mov_i32, { "r", "r" } },
1131
{ INDEX_op_movi_i32, { "r" } },
1132
{ INDEX_op_ld8u_i32, { "r", "r" } },
1133
{ INDEX_op_ld8s_i32, { "r", "r" } },
1134
{ INDEX_op_ld16u_i32, { "r", "r" } },
1135
{ INDEX_op_ld16s_i32, { "r", "r" } },
1136
{ INDEX_op_ld_i32, { "r", "r" } },
1137
{ INDEX_op_st8_i32, { "r", "r" } },
1138
{ INDEX_op_st16_i32, { "r", "r" } },
1139
{ INDEX_op_st_i32, { "r", "r" } },
1141
{ INDEX_op_add_i32, { "r", "0", "ri" } },
1142
{ INDEX_op_mul_i32, { "r", "0", "ri" } },
1143
{ INDEX_op_div2_i32, { "a", "d", "0", "1", "r" } },
1144
{ INDEX_op_divu2_i32, { "a", "d", "0", "1", "r" } },
1145
{ INDEX_op_sub_i32, { "r", "0", "ri" } },
1146
{ INDEX_op_and_i32, { "r", "0", "ri" } },
1147
{ INDEX_op_or_i32, { "r", "0", "ri" } },
1148
{ INDEX_op_xor_i32, { "r", "0", "ri" } },
1150
{ INDEX_op_shl_i32, { "r", "0", "ci" } },
1151
{ INDEX_op_shr_i32, { "r", "0", "ci" } },
1152
{ INDEX_op_sar_i32, { "r", "0", "ci" } },
1154
{ INDEX_op_brcond_i32, { "r", "ri" } },
1156
{ INDEX_op_mov_i64, { "r", "r" } },
1157
{ INDEX_op_movi_i64, { "r" } },
1158
{ INDEX_op_ld8u_i64, { "r", "r" } },
1159
{ INDEX_op_ld8s_i64, { "r", "r" } },
1160
{ INDEX_op_ld16u_i64, { "r", "r" } },
1161
{ INDEX_op_ld16s_i64, { "r", "r" } },
1162
{ INDEX_op_ld32u_i64, { "r", "r" } },
1163
{ INDEX_op_ld32s_i64, { "r", "r" } },
1164
{ INDEX_op_ld_i64, { "r", "r" } },
1165
{ INDEX_op_st8_i64, { "r", "r" } },
1166
{ INDEX_op_st16_i64, { "r", "r" } },
1167
{ INDEX_op_st32_i64, { "r", "r" } },
1168
{ INDEX_op_st_i64, { "r", "r" } },
1170
{ INDEX_op_add_i64, { "r", "0", "re" } },
1171
{ INDEX_op_mul_i64, { "r", "0", "re" } },
1172
{ INDEX_op_div2_i64, { "a", "d", "0", "1", "r" } },
1173
{ INDEX_op_divu2_i64, { "a", "d", "0", "1", "r" } },
1174
{ INDEX_op_sub_i64, { "r", "0", "re" } },
1175
{ INDEX_op_and_i64, { "r", "0", "reZ" } },
1176
{ INDEX_op_or_i64, { "r", "0", "re" } },
1177
{ INDEX_op_xor_i64, { "r", "0", "re" } },
1179
{ INDEX_op_shl_i64, { "r", "0", "ci" } },
1180
{ INDEX_op_shr_i64, { "r", "0", "ci" } },
1181
{ INDEX_op_sar_i64, { "r", "0", "ci" } },
1183
{ INDEX_op_brcond_i64, { "r", "re" } },
1185
{ INDEX_op_bswap_i32, { "r", "0" } },
1186
{ INDEX_op_bswap_i64, { "r", "0" } },
1188
{ INDEX_op_qemu_ld8u, { "r", "L" } },
1189
{ INDEX_op_qemu_ld8s, { "r", "L" } },
1190
{ INDEX_op_qemu_ld16u, { "r", "L" } },
1191
{ INDEX_op_qemu_ld16s, { "r", "L" } },
1192
{ INDEX_op_qemu_ld32u, { "r", "L" } },
1193
{ INDEX_op_qemu_ld32s, { "r", "L" } },
1194
{ INDEX_op_qemu_ld64, { "r", "L" } },
1196
{ INDEX_op_qemu_st8, { "L", "L" } },
1197
{ INDEX_op_qemu_st16, { "L", "L" } },
1198
{ INDEX_op_qemu_st32, { "L", "L" } },
1199
{ INDEX_op_qemu_st64, { "L", "L", "L" } },
1204
void tcg_target_init(TCGContext *s)
1206
tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffff);
1207
tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffff);
1208
tcg_regset_set32(tcg_target_call_clobber_regs, 0,
1209
(1 << TCG_REG_RDI) |
1210
(1 << TCG_REG_RSI) |
1211
(1 << TCG_REG_RDX) |
1212
(1 << TCG_REG_RCX) |
1215
(1 << TCG_REG_RAX) |
1216
(1 << TCG_REG_R10) |
1217
(1 << TCG_REG_R11));
1219
tcg_regset_clear(s->reserved_regs);
1220
tcg_regset_set_reg(s->reserved_regs, TCG_REG_RSP);
1221
/* XXX: will be suppresed when proper global TB entry code will be
1223
tcg_regset_set_reg(s->reserved_regs, TCG_REG_RBX);
1224
tcg_regset_set_reg(s->reserved_regs, TCG_REG_RBP);
1226
tcg_add_target_add_op_defs(x86_64_op_defs);