-
Notifications
You must be signed in to change notification settings - Fork 69
/
sljitNativeX86_common.c
5063 lines (4333 loc) · 149 KB
/
sljitNativeX86_common.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* Stack-less Just-In-Time compiler
*
* Copyright Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
SLJIT_API_FUNC_ATTRIBUTE const char* sljit_get_platform_name(void)
{
return "x86" SLJIT_CPUINFO;
}
/*
32b register indexes:
0 - EAX
1 - ECX
2 - EDX
3 - EBX
4 - ESP
5 - EBP
6 - ESI
7 - EDI
*/
/*
64b register indexes:
0 - RAX
1 - RCX
2 - RDX
3 - RBX
4 - RSP
5 - RBP
6 - RSI
7 - RDI
8 - R8 - From now on REX prefix is required
9 - R9
10 - R10
11 - R11
12 - R12
13 - R13
14 - R14
15 - R15
*/
#define TMP_REG1 (SLJIT_NUMBER_OF_REGISTERS + 2)
#define TMP_FREG (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1)
#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 3] = {
0, 0, 2, 1, 0, 0, 0, 0, 0, 0, 5, 7, 6, 4, 3
};
static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2] = {
0, 1, 2, 3, 4, 5, 6, 7, 0
};
#define CHECK_EXTRA_REGS(p, w, do) \
if (p >= SLJIT_R3 && p <= SLJIT_S3) { \
w = (2 * SSIZE_OF(sw)) + ((p) - SLJIT_R3) * SSIZE_OF(sw); \
p = SLJIT_MEM1(SLJIT_SP); \
do; \
}
#else /* SLJIT_CONFIG_X86_32 */
#define TMP_REG2 (SLJIT_NUMBER_OF_REGISTERS + 3)
/* Note: r12 & 0x7 == 0b100, which decoded as SIB byte present
Note: avoid to use r12 and r13 for memory addressing
therefore r12 is better to be a higher saved register. */
#ifndef _WIN64
/* Args: rdi(=7), rsi(=6), rdx(=2), rcx(=1), r8, r9. Scratches: rax(=0), r10, r11 */
static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 4] = {
0, 0, 6, 7, 1, 8, 11, 10, 12, 5, 13, 14, 15, 3, 4, 2, 9
};
/* low-map. reg_map & 0x7. */
static const sljit_u8 reg_lmap[SLJIT_NUMBER_OF_REGISTERS + 4] = {
0, 0, 6, 7, 1, 0, 3, 2, 4, 5, 5, 6, 7, 3, 4, 2, 1
};
#else
/* Args: rcx(=1), rdx(=2), r8, r9. Scratches: rax(=0), r10, r11 */
static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 4] = {
0, 0, 2, 8, 1, 11, 12, 5, 13, 14, 15, 7, 6, 3, 4, 9, 10
};
/* low-map. reg_map & 0x7. */
static const sljit_u8 reg_lmap[SLJIT_NUMBER_OF_REGISTERS + 4] = {
0, 0, 2, 0, 1, 3, 4, 5, 5, 6, 7, 7, 6, 3, 4, 1, 2
};
#endif
/* Args: xmm0-xmm3 */
static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2] = {
0, 0, 1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 4
};
/* low-map. freg_map & 0x7. */
static const sljit_u8 freg_lmap[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2] = {
0, 0, 1, 2, 3, 5, 6, 7, 0, 1, 2, 3, 4, 5, 6, 7, 4
};
#define REX_W 0x48
#define REX_R 0x44
#define REX_X 0x42
#define REX_B 0x41
#define REX 0x40
#ifndef _WIN64
#define HALFWORD_MAX 0x7fffffffl
#define HALFWORD_MIN -0x80000000l
#else
#define HALFWORD_MAX 0x7fffffffll
#define HALFWORD_MIN -0x80000000ll
#endif
#define IS_HALFWORD(x) ((x) <= HALFWORD_MAX && (x) >= HALFWORD_MIN)
#define NOT_HALFWORD(x) ((x) > HALFWORD_MAX || (x) < HALFWORD_MIN)
#define CHECK_EXTRA_REGS(p, w, do)
#endif /* SLJIT_CONFIG_X86_32 */
#define U8(v) ((sljit_u8)(v))
/* Size flags for emit_x86_instruction: */
#define EX86_BIN_INS ((sljit_uw)0x000010)
#define EX86_SHIFT_INS ((sljit_uw)0x000020)
#define EX86_BYTE_ARG ((sljit_uw)0x000040)
#define EX86_HALF_ARG ((sljit_uw)0x000080)
/* Size flags for both emit_x86_instruction and emit_vex_instruction: */
#define EX86_REX ((sljit_uw)0x000100)
#define EX86_NO_REXW ((sljit_uw)0x000200)
#define EX86_PREF_66 ((sljit_uw)0x000400)
#define EX86_PREF_F2 ((sljit_uw)0x000800)
#define EX86_PREF_F3 ((sljit_uw)0x001000)
#define EX86_SSE2_OP1 ((sljit_uw)0x002000)
#define EX86_SSE2_OP2 ((sljit_uw)0x004000)
#define EX86_SSE2 (EX86_SSE2_OP1 | EX86_SSE2_OP2)
#define EX86_VEX_EXT ((sljit_uw)0x008000)
/* Op flags for emit_vex_instruction: */
#define VEX_OP_0F38 ((sljit_uw)0x010000)
#define VEX_OP_0F3A ((sljit_uw)0x020000)
#define VEX_SSE2_OPV ((sljit_uw)0x040000)
#define VEX_AUTO_W ((sljit_uw)0x080000)
#define VEX_W ((sljit_uw)0x100000)
#define VEX_256 ((sljit_uw)0x200000)
#define EX86_SELECT_66(op) (((op) & SLJIT_32) ? 0 : EX86_PREF_66)
#define EX86_SELECT_F2_F3(op) (((op) & SLJIT_32) ? EX86_PREF_F3 : EX86_PREF_F2)
/* --------------------------------------------------------------------- */
/* Instruction forms */
/* --------------------------------------------------------------------- */
#define ADD (/* BINARY */ 0 << 3)
#define ADD_EAX_i32 0x05
#define ADD_r_rm 0x03
#define ADD_rm_r 0x01
#define ADDSD_x_xm 0x58
#define ADC (/* BINARY */ 2 << 3)
#define ADC_EAX_i32 0x15
#define ADC_r_rm 0x13
#define ADC_rm_r 0x11
#define AND (/* BINARY */ 4 << 3)
#define AND_EAX_i32 0x25
#define AND_r_rm 0x23
#define AND_rm_r 0x21
#define ANDPD_x_xm 0x54
#define BSR_r_rm (/* GROUP_0F */ 0xbd)
#define BSF_r_rm (/* GROUP_0F */ 0xbc)
#define BSWAP_r (/* GROUP_0F */ 0xc8)
#define CALL_i32 0xe8
#define CALL_rm (/* GROUP_FF */ 2 << 3)
#define CDQ 0x99
#define CMOVE_r_rm (/* GROUP_0F */ 0x44)
#define CMP (/* BINARY */ 7 << 3)
#define CMP_EAX_i32 0x3d
#define CMP_r_rm 0x3b
#define CMP_rm_r 0x39
#define CMPS_x_xm 0xc2
#define CMPXCHG_rm_r 0xb1
#define CMPXCHG_rm8_r 0xb0
#define CVTPD2PS_x_xm 0x5a
#define CVTPS2PD_x_xm 0x5a
#define CVTSI2SD_x_rm 0x2a
#define CVTTSD2SI_r_xm 0x2c
#define DIV (/* GROUP_F7 */ 6 << 3)
#define DIVSD_x_xm 0x5e
#define EXTRACTPS_x_xm 0x17
#define FLDS 0xd9
#define FLDL 0xdd
#define FSTPS 0xd9
#define FSTPD 0xdd
#define INSERTPS_x_xm 0x21
#define INT3 0xcc
#define IDIV (/* GROUP_F7 */ 7 << 3)
#define IMUL (/* GROUP_F7 */ 5 << 3)
#define IMUL_r_rm (/* GROUP_0F */ 0xaf)
#define IMUL_r_rm_i8 0x6b
#define IMUL_r_rm_i32 0x69
#define JL_i8 0x7c
#define JE_i8 0x74
#define JNC_i8 0x73
#define JNE_i8 0x75
#define JMP_i8 0xeb
#define JMP_i32 0xe9
#define JMP_rm (/* GROUP_FF */ 4 << 3)
#define LEA_r_m 0x8d
#define LOOP_i8 0xe2
#define LZCNT_r_rm (/* GROUP_F3 */ /* GROUP_0F */ 0xbd)
#define MOV_r_rm 0x8b
#define MOV_r_i32 0xb8
#define MOV_rm_r 0x89
#define MOV_rm_i32 0xc7
#define MOV_rm8_i8 0xc6
#define MOV_rm8_r8 0x88
#define MOVAPS_x_xm 0x28
#define MOVAPS_xm_x 0x29
#define MOVD_x_rm 0x6e
#define MOVD_rm_x 0x7e
#define MOVDDUP_x_xm 0x12
#define MOVDQA_x_xm 0x6f
#define MOVDQA_xm_x 0x7f
#define MOVDQU_x_xm 0x6f
#define MOVHLPS_x_x 0x12
#define MOVHPD_m_x 0x17
#define MOVHPD_x_m 0x16
#define MOVLHPS_x_x 0x16
#define MOVLPD_m_x 0x13
#define MOVLPD_x_m 0x12
#define MOVMSKPS_r_x (/* GROUP_0F */ 0x50)
#define MOVQ_x_xm (/* GROUP_0F */ 0x7e)
#define MOVSD_x_xm 0x10
#define MOVSD_xm_x 0x11
#define MOVSHDUP_x_xm 0x16
#define MOVSXD_r_rm 0x63
#define MOVSX_r_rm8 (/* GROUP_0F */ 0xbe)
#define MOVSX_r_rm16 (/* GROUP_0F */ 0xbf)
#define MOVUPS_x_xm 0x10
#define MOVZX_r_rm8 (/* GROUP_0F */ 0xb6)
#define MOVZX_r_rm16 (/* GROUP_0F */ 0xb7)
#define MUL (/* GROUP_F7 */ 4 << 3)
#define MULSD_x_xm 0x59
#define NEG_rm (/* GROUP_F7 */ 3 << 3)
#define NOP 0x90
#define NOT_rm (/* GROUP_F7 */ 2 << 3)
#define OR (/* BINARY */ 1 << 3)
#define OR_r_rm 0x0b
#define OR_EAX_i32 0x0d
#define OR_rm_r 0x09
#define OR_rm8_r8 0x08
#define ORPD_x_xm 0x56
#define PACKSSWB_x_xm (/* GROUP_0F */ 0x63)
#define PAND_x_xm 0xdb
#define PCMPEQD_x_xm 0x76
#define PINSRB_x_rm_i8 0x20
#define PINSRW_x_rm_i8 0xc4
#define PINSRD_x_rm_i8 0x22
#define PEXTRB_rm_x_i8 0x14
#define PEXTRW_rm_x_i8 0x15
#define PEXTRD_rm_x_i8 0x16
#define PMOVMSKB_r_x (/* GROUP_0F */ 0xd7)
#define PMOVSXBD_x_xm 0x21
#define PMOVSXBQ_x_xm 0x22
#define PMOVSXBW_x_xm 0x20
#define PMOVSXDQ_x_xm 0x25
#define PMOVSXWD_x_xm 0x23
#define PMOVSXWQ_x_xm 0x24
#define PMOVZXBD_x_xm 0x31
#define PMOVZXBQ_x_xm 0x32
#define PMOVZXBW_x_xm 0x30
#define PMOVZXDQ_x_xm 0x35
#define PMOVZXWD_x_xm 0x33
#define PMOVZXWQ_x_xm 0x34
#define POP_r 0x58
#define POP_rm 0x8f
#define POPF 0x9d
#define POR_x_xm 0xeb
#define PREFETCH 0x18
#define PSHUFB_x_xm 0x00
#define PSHUFD_x_xm 0x70
#define PSHUFLW_x_xm 0x70
#define PSRLDQ_x 0x73
#define PSLLD_x_i8 0x72
#define PSLLQ_x_i8 0x73
#define PUSH_i32 0x68
#define PUSH_r 0x50
#define PUSH_rm (/* GROUP_FF */ 6 << 3)
#define PUSHF 0x9c
#define PXOR_x_xm 0xef
#define ROL (/* SHIFT */ 0 << 3)
#define ROR (/* SHIFT */ 1 << 3)
#define RET_near 0xc3
#define RET_i16 0xc2
#define SBB (/* BINARY */ 3 << 3)
#define SBB_EAX_i32 0x1d
#define SBB_r_rm 0x1b
#define SBB_rm_r 0x19
#define SAR (/* SHIFT */ 7 << 3)
#define SHL (/* SHIFT */ 4 << 3)
#define SHLD (/* GROUP_0F */ 0xa5)
#define SHRD (/* GROUP_0F */ 0xad)
#define SHR (/* SHIFT */ 5 << 3)
#define SHUFPS_x_xm 0xc6
#define SUB (/* BINARY */ 5 << 3)
#define SUB_EAX_i32 0x2d
#define SUB_r_rm 0x2b
#define SUB_rm_r 0x29
#define SUBSD_x_xm 0x5c
#define TEST_EAX_i32 0xa9
#define TEST_rm_r 0x85
#define TZCNT_r_rm (/* GROUP_F3 */ /* GROUP_0F */ 0xbc)
#define UCOMISD_x_xm 0x2e
#define UNPCKLPD_x_xm 0x14
#define UNPCKLPS_x_xm 0x14
#define VBROADCASTSD_x_xm 0x19
#define VBROADCASTSS_x_xm 0x18
#define VEXTRACTF128_x_ym 0x19
#define VEXTRACTI128_x_ym 0x39
#define VINSERTF128_y_y_xm 0x18
#define VINSERTI128_y_y_xm 0x38
#define VPBROADCASTB_x_xm 0x78
#define VPBROADCASTD_x_xm 0x58
#define VPBROADCASTQ_x_xm 0x59
#define VPBROADCASTW_x_xm 0x79
#define VPERMPD_y_ym 0x01
#define VPERMQ_y_ym 0x00
#define XCHG_EAX_r 0x90
#define XCHG_r_rm 0x87
#define XOR (/* BINARY */ 6 << 3)
#define XOR_EAX_i32 0x35
#define XOR_r_rm 0x33
#define XOR_rm_r 0x31
#define XORPD_x_xm 0x57
#define GROUP_0F 0x0f
#define GROUP_66 0x66
#define GROUP_F3 0xf3
#define GROUP_F7 0xf7
#define GROUP_FF 0xff
#define GROUP_BINARY_81 0x81
#define GROUP_BINARY_83 0x83
#define GROUP_SHIFT_1 0xd1
#define GROUP_SHIFT_N 0xc1
#define GROUP_SHIFT_CL 0xd3
#define GROUP_LOCK 0xf0
#define MOD_REG 0xc0
#define MOD_DISP8 0x40
#define INC_SIZE(s) (*inst++ = U8(s), compiler->size += (s))
#define PUSH_REG(r) (*inst++ = U8(PUSH_r + (r)))
#define POP_REG(r) (*inst++ = U8(POP_r + (r)))
#define RET() (*inst++ = RET_near)
#define RET_I16(n) (*inst++ = RET_i16, *inst++ = U8(n), *inst++ = 0)
#define SLJIT_INST_LABEL 255
#define SLJIT_INST_JUMP 254
#define SLJIT_INST_MOV_ADDR 253
#define SLJIT_INST_CONST 252
/* Multithreading does not affect these static variables, since they store
built-in CPU features. Therefore they can be overwritten by different threads
if they detect the CPU features in the same time. */
#define CPU_FEATURE_DETECTED 0x001
#if (defined SLJIT_DETECT_SSE2 && SLJIT_DETECT_SSE2)
#define CPU_FEATURE_SSE2 0x002
#endif
#define CPU_FEATURE_SSE41 0x004
#define CPU_FEATURE_LZCNT 0x008
#define CPU_FEATURE_TZCNT 0x010
#define CPU_FEATURE_CMOV 0x020
#define CPU_FEATURE_AVX 0x040
#define CPU_FEATURE_AVX2 0x080
#define CPU_FEATURE_OSXSAVE 0x100
static sljit_u32 cpu_feature_list = 0;
#ifdef _WIN32_WCE
#include <cmnintrin.h>
#elif defined(_MSC_VER) && _MSC_VER >= 1400
#include <intrin.h>
#elif defined(__INTEL_COMPILER)
#include <cpuid.h>
#endif
#if (defined(_MSC_VER) && _MSC_VER >= 1400) || defined(__INTEL_COMPILER) \
|| (defined(__INTEL_LLVM_COMPILER) && defined(__XSAVE__))
#include <immintrin.h>
#endif
/******************************************************/
/* Unaligned-store functions */
/******************************************************/
static SLJIT_INLINE void sljit_unaligned_store_s16(void *addr, sljit_s16 value)
{
SLJIT_MEMCPY(addr, &value, sizeof(value));
}
static SLJIT_INLINE void sljit_unaligned_store_s32(void *addr, sljit_s32 value)
{
SLJIT_MEMCPY(addr, &value, sizeof(value));
}
static SLJIT_INLINE void sljit_unaligned_store_sw(void *addr, sljit_sw value)
{
SLJIT_MEMCPY(addr, &value, sizeof(value));
}
/******************************************************/
/* Utility functions */
/******************************************************/
static void execute_cpu_id(sljit_u32 info[4])
{
#if (defined(_MSC_VER) && _MSC_VER >= 1400) \
|| (defined(__INTEL_COMPILER) && __INTEL_COMPILER == 2021 && __INTEL_COMPILER_UPDATE >= 7)
__cpuidex((int*)info, (int)info[0], (int)info[2]);
#elif (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 1900)
__get_cpuid_count(info[0], info[2], info, info + 1, info + 2, info + 3);
#elif (defined(_MSC_VER) || defined(__INTEL_COMPILER)) \
&& (defined(SLJIT_CONFIG_X86_32) && SLJIT_CONFIG_X86_32)
/* Intel syntax. */
__asm {
mov esi, info
mov eax, [esi]
mov ecx, [esi + 8]
cpuid
mov [esi], eax
mov [esi + 4], ebx
mov [esi + 8], ecx
mov [esi + 12], edx
}
#else
__asm__ __volatile__ (
"cpuid\n"
: "=a" (info[0]), "=b" (info[1]), "=c" (info[2]), "=d" (info[3])
: "0" (info[0]), "2" (info[2])
);
#endif
}
static sljit_u32 execute_get_xcr0_low(void)
{
sljit_u32 xcr0;
#if (defined(_MSC_VER) && _MSC_VER >= 1400) || defined(__INTEL_COMPILER) \
|| (defined(__INTEL_LLVM_COMPILER) && defined(__XSAVE__))
xcr0 = (sljit_u32)_xgetbv(0);
#elif defined(__TINYC__)
__asm__ (
"xorl %%ecx, %%ecx\n"
".byte 0x0f\n"
".byte 0x01\n"
".byte 0xd0\n"
: "=a" (xcr0)
:
#if defined(SLJIT_CONFIG_X86_32) && SLJIT_CONFIG_X86_32
: "ecx", "edx"
#else /* !SLJIT_CONFIG_X86_32 */
: "rcx", "rdx"
#endif /* SLJIT_CONFIG_X86_32 */
);
#elif (defined(__INTEL_LLVM_COMPILER) && __INTEL_LLVM_COMPILER < 20220100) \
|| (defined(__clang__) && __clang_major__ < 14) \
|| (defined(__GNUC__) && __GNUC__ < 3) \
|| defined(__SUNPRO_C) || defined(__SUNPRO_CC)
/* AT&T syntax. */
__asm__ (
"xorl %%ecx, %%ecx\n"
"xgetbv\n"
: "=a" (xcr0)
:
#if defined(SLJIT_CONFIG_X86_32) && SLJIT_CONFIG_X86_32
: "ecx", "edx"
#else /* !SLJIT_CONFIG_X86_32 */
: "rcx", "rdx"
#endif /* SLJIT_CONFIG_X86_32 */
);
#elif defined(_MSC_VER)
/* Intel syntax. */
__asm {
xor ecx, ecx
xgetbv
mov xcr0, eax
}
#else
__asm__ (
"xor{l %%ecx, %%ecx | ecx, ecx}\n"
"xgetbv\n"
: "=a" (xcr0)
:
#if defined(SLJIT_CONFIG_X86_32) && SLJIT_CONFIG_X86_32
: "ecx", "edx"
#else /* !SLJIT_CONFIG_X86_32 */
: "rcx", "rdx"
#endif /* SLJIT_CONFIG_X86_32 */
);
#endif
return xcr0;
}
static void get_cpu_features(void)
{
sljit_u32 feature_list = CPU_FEATURE_DETECTED;
sljit_u32 info[4] = {0};
sljit_u32 max_id;
execute_cpu_id(info);
max_id = info[0];
if (max_id >= 7) {
info[0] = 7;
info[2] = 0;
execute_cpu_id(info);
if (info[1] & 0x8)
feature_list |= CPU_FEATURE_TZCNT;
if (info[1] & 0x20)
feature_list |= CPU_FEATURE_AVX2;
}
if (max_id >= 1) {
info[0] = 1;
#if defined(SLJIT_CONFIG_X86_32) && SLJIT_CONFIG_X86_32
/* Winchip 2 and Cyrix MII bugs */
info[1] = info[2] = 0;
#endif
execute_cpu_id(info);
if (info[2] & 0x80000)
feature_list |= CPU_FEATURE_SSE41;
if (info[2] & 0x8000000)
feature_list |= CPU_FEATURE_OSXSAVE;
if (info[2] & 0x10000000)
feature_list |= CPU_FEATURE_AVX;
#if (defined SLJIT_DETECT_SSE2 && SLJIT_DETECT_SSE2)
if (info[3] & 0x4000000)
feature_list |= CPU_FEATURE_SSE2;
#endif
if (info[3] & 0x8000)
feature_list |= CPU_FEATURE_CMOV;
}
info[0] = 0x80000000;
execute_cpu_id(info);
max_id = info[0];
if (max_id >= 0x80000001) {
info[0] = 0x80000001;
execute_cpu_id(info);
if (info[2] & 0x20)
feature_list |= CPU_FEATURE_LZCNT;
}
if ((feature_list & CPU_FEATURE_OSXSAVE) && (execute_get_xcr0_low() & 0x4) == 0)
feature_list &= ~(sljit_u32)(CPU_FEATURE_AVX | CPU_FEATURE_AVX2);
cpu_feature_list = feature_list;
}
static sljit_u8 get_jump_code(sljit_uw type)
{
switch (type) {
case SLJIT_EQUAL:
case SLJIT_ATOMIC_STORED:
case SLJIT_F_EQUAL:
case SLJIT_UNORDERED_OR_EQUAL:
return 0x84 /* je */;
case SLJIT_NOT_EQUAL:
case SLJIT_ATOMIC_NOT_STORED:
case SLJIT_F_NOT_EQUAL:
case SLJIT_ORDERED_NOT_EQUAL:
return 0x85 /* jne */;
case SLJIT_LESS:
case SLJIT_CARRY:
case SLJIT_F_LESS:
case SLJIT_UNORDERED_OR_LESS:
case SLJIT_UNORDERED_OR_GREATER:
return 0x82 /* jc */;
case SLJIT_GREATER_EQUAL:
case SLJIT_NOT_CARRY:
case SLJIT_F_GREATER_EQUAL:
case SLJIT_ORDERED_GREATER_EQUAL:
case SLJIT_ORDERED_LESS_EQUAL:
return 0x83 /* jae */;
case SLJIT_GREATER:
case SLJIT_F_GREATER:
case SLJIT_ORDERED_LESS:
case SLJIT_ORDERED_GREATER:
return 0x87 /* jnbe */;
case SLJIT_LESS_EQUAL:
case SLJIT_F_LESS_EQUAL:
case SLJIT_UNORDERED_OR_GREATER_EQUAL:
case SLJIT_UNORDERED_OR_LESS_EQUAL:
return 0x86 /* jbe */;
case SLJIT_SIG_LESS:
return 0x8c /* jl */;
case SLJIT_SIG_GREATER_EQUAL:
return 0x8d /* jnl */;
case SLJIT_SIG_GREATER:
return 0x8f /* jnle */;
case SLJIT_SIG_LESS_EQUAL:
return 0x8e /* jle */;
case SLJIT_OVERFLOW:
return 0x80 /* jo */;
case SLJIT_NOT_OVERFLOW:
return 0x81 /* jno */;
case SLJIT_UNORDERED:
case SLJIT_ORDERED_EQUAL: /* NaN. */
return 0x8a /* jp */;
case SLJIT_ORDERED:
case SLJIT_UNORDERED_OR_NOT_EQUAL: /* Not NaN. */
return 0x8b /* jpo */;
}
return 0;
}
#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
static sljit_u8* detect_far_jump_type(struct sljit_jump *jump, sljit_u8 *code_ptr, sljit_sw executable_offset);
#else /* !SLJIT_CONFIG_X86_32 */
static sljit_u8* detect_far_jump_type(struct sljit_jump *jump, sljit_u8 *code_ptr);
static sljit_u8* generate_mov_addr_code(struct sljit_jump *jump, sljit_u8 *code_ptr, sljit_u8 *code, sljit_sw executable_offset);
#endif /* SLJIT_CONFIG_X86_32 */
static sljit_u8* detect_near_jump_type(struct sljit_jump *jump, sljit_u8 *code_ptr, sljit_u8 *code, sljit_sw executable_offset)
{
sljit_uw type = jump->flags >> TYPE_SHIFT;
sljit_s32 short_jump;
sljit_uw label_addr;
if (jump->flags & JUMP_ADDR)
label_addr = jump->u.target - (sljit_uw)executable_offset;
else
label_addr = (sljit_uw)(code + jump->u.label->size);
#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
if ((sljit_sw)(label_addr - (sljit_uw)(code_ptr + 6)) > HALFWORD_MAX || (sljit_sw)(label_addr - (sljit_uw)(code_ptr + 5)) < HALFWORD_MIN)
return detect_far_jump_type(jump, code_ptr);
#endif /* SLJIT_CONFIG_X86_64 */
short_jump = (sljit_sw)(label_addr - (sljit_uw)(code_ptr + 2)) >= -0x80 && (sljit_sw)(label_addr - (sljit_uw)(code_ptr + 2)) <= 0x7f;
if (type == SLJIT_JUMP) {
if (short_jump)
*code_ptr++ = JMP_i8;
else
*code_ptr++ = JMP_i32;
} else if (type > SLJIT_JUMP) {
short_jump = 0;
*code_ptr++ = CALL_i32;
} else if (short_jump) {
*code_ptr++ = U8(get_jump_code(type) - 0x10);
} else {
*code_ptr++ = GROUP_0F;
*code_ptr++ = get_jump_code(type);
}
jump->addr = (sljit_uw)code_ptr;
if (short_jump) {
jump->flags |= PATCH_MB;
code_ptr += sizeof(sljit_s8);
} else {
jump->flags |= PATCH_MW;
code_ptr += sizeof(sljit_s32);
}
return code_ptr;
}
static void generate_jump_or_mov_addr(struct sljit_jump *jump, sljit_sw executable_offset)
{
sljit_uw flags = jump->flags;
sljit_uw addr = (flags & JUMP_ADDR) ? jump->u.target : jump->u.label->u.addr;
sljit_uw jump_addr = jump->addr;
SLJIT_UNUSED_ARG(executable_offset);
if (SLJIT_UNLIKELY(flags & JUMP_MOV_ADDR)) {
#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
sljit_unaligned_store_sw((void*)(jump_addr - sizeof(sljit_sw)), (sljit_sw)addr);
#else /* SLJIT_CONFIG_X86_32 */
if (flags & PATCH_MD) {
SLJIT_ASSERT(addr > HALFWORD_MAX);
sljit_unaligned_store_sw((void*)(jump_addr - sizeof(sljit_sw)), (sljit_sw)addr);
return;
}
if (flags & PATCH_MW) {
addr -= (sljit_uw)SLJIT_ADD_EXEC_OFFSET((sljit_u8*)jump_addr, executable_offset);
SLJIT_ASSERT((sljit_sw)addr <= HALFWORD_MAX && (sljit_sw)addr >= HALFWORD_MIN);
} else {
SLJIT_ASSERT(addr <= HALFWORD_MAX);
}
sljit_unaligned_store_s32((void*)(jump_addr - sizeof(sljit_s32)), (sljit_s32)addr);
#endif /* !SLJIT_CONFIG_X86_32 */
return;
}
#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
if (SLJIT_UNLIKELY(flags & PATCH_MD)) {
SLJIT_ASSERT(!(flags & JUMP_ADDR));
sljit_unaligned_store_sw((void*)jump_addr, (sljit_sw)addr);
return;
}
#endif /* SLJIT_CONFIG_X86_64 */
addr -= (sljit_uw)SLJIT_ADD_EXEC_OFFSET((sljit_u8*)jump_addr, executable_offset);
if (flags & PATCH_MB) {
addr -= sizeof(sljit_s8);
SLJIT_ASSERT((sljit_sw)addr <= 0x7f && (sljit_sw)addr >= -0x80);
*(sljit_u8*)jump_addr = U8(addr);
return;
} else if (flags & PATCH_MW) {
addr -= sizeof(sljit_s32);
#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
sljit_unaligned_store_sw((void*)jump_addr, (sljit_sw)addr);
#else /* !SLJIT_CONFIG_X86_32 */
SLJIT_ASSERT((sljit_sw)addr <= HALFWORD_MAX && (sljit_sw)addr >= HALFWORD_MIN);
sljit_unaligned_store_s32((void*)jump_addr, (sljit_s32)addr);
#endif /* SLJIT_CONFIG_X86_32 */
}
}
static void reduce_code_size(struct sljit_compiler *compiler)
{
struct sljit_label *label;
struct sljit_jump *jump;
sljit_uw next_label_size;
sljit_uw next_jump_addr;
sljit_uw next_min_addr;
sljit_uw size_reduce = 0;
sljit_sw diff;
sljit_uw type;
#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
sljit_uw size_reduce_max;
#endif /* SLJIT_DEBUG */
label = compiler->labels;
jump = compiler->jumps;
next_label_size = SLJIT_GET_NEXT_SIZE(label);
next_jump_addr = SLJIT_GET_NEXT_ADDRESS(jump);
while (1) {
next_min_addr = next_label_size;
if (next_jump_addr < next_min_addr)
next_min_addr = next_jump_addr;
if (next_min_addr == SLJIT_MAX_ADDRESS)
break;
if (next_min_addr == next_label_size) {
label->size -= size_reduce;
label = label->next;
next_label_size = SLJIT_GET_NEXT_SIZE(label);
}
if (next_min_addr != next_jump_addr)
continue;
if (!(jump->flags & JUMP_MOV_ADDR)) {
#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
size_reduce_max = size_reduce + (((jump->flags >> TYPE_SHIFT) < SLJIT_JUMP) ? CJUMP_MAX_SIZE : JUMP_MAX_SIZE);
#endif /* SLJIT_DEBUG */
if (!(jump->flags & SLJIT_REWRITABLE_JUMP)) {
if (jump->flags & JUMP_ADDR) {
#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
if (jump->u.target <= 0xffffffffl)
size_reduce += sizeof(sljit_s32);
#endif /* SLJIT_CONFIG_X86_64 */
} else {
/* Unit size: instruction. */
diff = (sljit_sw)jump->u.label->size - (sljit_sw)(jump->addr - size_reduce);
type = jump->flags >> TYPE_SHIFT;
#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
if (type == SLJIT_JUMP) {
if (diff <= 0x7f + 2 && diff >= -0x80 + 2)
size_reduce += JUMP_MAX_SIZE - 2;
else if (diff <= HALFWORD_MAX + 5 && diff >= HALFWORD_MIN + 5)
size_reduce += JUMP_MAX_SIZE - 5;
} else if (type < SLJIT_JUMP) {
if (diff <= 0x7f + 2 && diff >= -0x80 + 2)
size_reduce += CJUMP_MAX_SIZE - 2;
else if (diff <= HALFWORD_MAX + 6 && diff >= HALFWORD_MIN + 6)
size_reduce += CJUMP_MAX_SIZE - 6;
} else {
if (diff <= HALFWORD_MAX + 5 && diff >= HALFWORD_MIN + 5)
size_reduce += JUMP_MAX_SIZE - 5;
}
#else /* !SLJIT_CONFIG_X86_64 */
if (type == SLJIT_JUMP) {
if (diff <= 0x7f + 2 && diff >= -0x80 + 2)
size_reduce += JUMP_MAX_SIZE - 2;
} else if (type < SLJIT_JUMP) {
if (diff <= 0x7f + 2 && diff >= -0x80 + 2)
size_reduce += CJUMP_MAX_SIZE - 2;
}
#endif /* SLJIT_CONFIG_X86_64 */
}
}
#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
jump->flags |= (size_reduce_max - size_reduce) << JUMP_SIZE_SHIFT;
#endif /* SLJIT_DEBUG */
#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
} else {
#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
size_reduce_max = size_reduce + 10;
#endif /* SLJIT_DEBUG */
if (!(jump->flags & JUMP_ADDR)) {
diff = (sljit_sw)jump->u.label->size - (sljit_sw)(jump->addr - size_reduce - 3);
if (diff <= HALFWORD_MAX && diff >= HALFWORD_MIN)
size_reduce += 3;
} else if (jump->u.target <= 0xffffffffl)
size_reduce += (jump->flags & MOV_ADDR_HI) ? 4 : 5;
#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
jump->flags |= (size_reduce_max - size_reduce) << JUMP_SIZE_SHIFT;
#endif /* SLJIT_DEBUG */
#endif /* SLJIT_CONFIG_X86_64 */
}
jump = jump->next;
next_jump_addr = SLJIT_GET_NEXT_ADDRESS(jump);
}
compiler->size -= size_reduce;
}
SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler, sljit_s32 options, void *exec_allocator_data)
{
struct sljit_memory_fragment *buf;
sljit_u8 *code;
sljit_u8 *code_ptr;
sljit_u8 *buf_ptr;
sljit_u8 *buf_end;
sljit_u8 len;
sljit_sw executable_offset;
#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
sljit_uw addr;
#endif /* SLJIT_DEBUG */
struct sljit_label *label;
struct sljit_jump *jump;
struct sljit_const *const_;
CHECK_ERROR_PTR();
CHECK_PTR(check_sljit_generate_code(compiler));
reduce_code_size(compiler);
/* Second code generation pass. */
code = (sljit_u8*)allocate_executable_memory(compiler->size, options, exec_allocator_data, &executable_offset);
PTR_FAIL_WITH_EXEC_IF(code);
reverse_buf(compiler);
buf = compiler->buf;
code_ptr = code;
label = compiler->labels;
jump = compiler->jumps;
const_ = compiler->consts;
do {
buf_ptr = buf->memory;
buf_end = buf_ptr + buf->used_size;
do {
len = *buf_ptr++;
SLJIT_ASSERT(len > 0);
if (len < SLJIT_INST_CONST) {
/* The code is already generated. */
SLJIT_MEMCPY(code_ptr, buf_ptr, len);
code_ptr += len;
buf_ptr += len;
} else {
switch (len) {
case SLJIT_INST_LABEL:
label->u.addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
label->size = (sljit_uw)(code_ptr - code);
label = label->next;
break;
case SLJIT_INST_JUMP:
#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
addr = (sljit_uw)code_ptr;
#endif /* SLJIT_DEBUG */
if (!(jump->flags & SLJIT_REWRITABLE_JUMP))
code_ptr = detect_near_jump_type(jump, code_ptr, code, executable_offset);
else {
#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
code_ptr = detect_far_jump_type(jump, code_ptr, executable_offset);
#else /* !SLJIT_CONFIG_X86_32 */
code_ptr = detect_far_jump_type(jump, code_ptr);
#endif /* SLJIT_CONFIG_X86_32 */
}
SLJIT_ASSERT((sljit_uw)code_ptr - addr <= ((jump->flags >> JUMP_SIZE_SHIFT) & 0x1f));
jump = jump->next;
break;
case SLJIT_INST_MOV_ADDR:
#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
code_ptr = generate_mov_addr_code(jump, code_ptr, code, executable_offset);
#endif /* SLJIT_CONFIG_X86_64 */
jump->addr = (sljit_uw)code_ptr;
jump = jump->next;
break;
default:
SLJIT_ASSERT(len == SLJIT_INST_CONST);
const_->addr = ((sljit_uw)code_ptr) - sizeof(sljit_sw);
const_ = const_->next;
break;
}
}
} while (buf_ptr < buf_end);
SLJIT_ASSERT(buf_ptr == buf_end);
buf = buf->next;
} while (buf);
SLJIT_ASSERT(!label);
SLJIT_ASSERT(!jump);
SLJIT_ASSERT(!const_);
SLJIT_ASSERT(code_ptr <= code + compiler->size);
jump = compiler->jumps;
while (jump) {
generate_jump_or_mov_addr(jump, executable_offset);
jump = jump->next;
}
compiler->error = SLJIT_ERR_COMPILED;
compiler->executable_offset = executable_offset;
compiler->executable_size = (sljit_uw)(code_ptr - code);
code = (sljit_u8*)SLJIT_ADD_EXEC_OFFSET(code, executable_offset);
SLJIT_UPDATE_WX_FLAGS(code, (sljit_u8*)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset), 1);
return (void*)code;
}
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_has_cpu_feature(sljit_s32 feature_type)
{