-
Notifications
You must be signed in to change notification settings - Fork 156
/
igc_flags.h
1019 lines (997 loc) · 127 KB
/
igc_flags.h
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
/*========================== begin_copyright_notice ============================
Copyright (C) 2017-2023 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
// Template:
// DECLARE_IGC_REGKEY(dataType, regkeyName, defaultValue, description, releaseMode)
//
// releaseMode - The value is responsible for the availability of the flag in the Linux release
DECLARE_IGC_GROUP("VISA optimization")
DECLARE_IGC_REGKEY(DWORD, VISALTO, 0x3F, "vISA LTO optimization flags. check LINKER_TYPE for more details", false)
DECLARE_IGC_REGKEY(bool, DisableSendS, false, "Setting this to 1/true adds a compiler switch to not generate sends commands, default is to enable sends ", false)
DECLARE_IGC_REGKEY(bool, ForcePreserveR0, false, "Setting this to true makes VISA preserve r0 in r0", true)
DECLARE_IGC_REGKEY(bool, EnablePreemption, true, "Enable generating preeemptable code (SKL+)", false)
DECLARE_IGC_REGKEY(bool, ForcePreemptionWA, false, "Force generating preemptable code across platforms", true)
DECLARE_IGC_REGKEY(bool, EnableVISANoSchedule, false, "Enable VISA No-Schedule", true)
DECLARE_IGC_REGKEY(bool, EnableVISAPreSched, true, "Enable VISA Pre-RA Scheduler", true)
DECLARE_IGC_REGKEY(DWORD, VISAPreSchedCtrl, 0, "Configure Pre-RA Scheduler, default(0), logging(1), latency(2), pressure(4)", false)
DECLARE_IGC_REGKEY(bool, ForceVISAPreSched, false, "Force enabling of VISA Pre-RA Scheduler", false)
DECLARE_IGC_REGKEY(DWORD, VISAPreSchedRPThreshold, 0, "Threshold to commit a pre-RA Scheduling without spills, 0 for the default", false)
DECLARE_IGC_REGKEY(DWORD, VISAPreSchedExtraGRF, 0, "Bump up GRF number to make pre-RA Scheduling more greedy, 0 for the default", false)
DECLARE_IGC_REGKEY(DWORD, VISAScheduleStartBBID, 0, "The ID of BB which will be first scheduled", false)
DECLARE_IGC_REGKEY(DWORD, VISAScheduleEndBBID, 0, "The ID of BB which will be last scheduled", false)
DECLARE_IGC_REGKEY(DWORD, VISAPostScheduleStartBBID, 0, "The ID of BB which will be first scheduled", false)
DECLARE_IGC_REGKEY(DWORD, VISAPostScheduleEndBBID, 0, "The ID of BB which will be last scheduled", false)
DECLARE_IGC_REGKEY(DWORD, ForceAllowSmallSpill, 0, "Allow small spills regardless of SIMD, API, or platform. The spill amount is set below", false)
DECLARE_IGC_REGKEY(DWORD, SIMD8_SpillThreshold, 2, "Percentage of instructions allowed for spilling on SIMD8", false)
DECLARE_IGC_REGKEY(DWORD, SIMD16_SpillThreshold, 1, "Percentage of instructions allowed for spilling on SIMD16", false)
DECLARE_IGC_REGKEY(DWORD, SIMD32_SpillThreshold, 1, "Percentage of instructions allowed for spilling on SIMD32", false)
DECLARE_IGC_REGKEY(DWORD, CSSIMD16_SpillThreshold, 1, "Percentage of instructions allowed for spilling on CS SIMD16", false)
DECLARE_IGC_REGKEY(DWORD, CSSIMD32_SpillThreshold, 1, "Percentage of instructions allowed for spilling on CS SIMD32", false)
DECLARE_IGC_REGKEY(DWORD, CSSIMD32_HighThresholdInstCount, 1000, "Instructions count limit to allow higher spill threshold on CS SIMD32", false)
DECLARE_IGC_REGKEY(bool, DisableCSEL, false, "disable csel peep-hole", false)
DECLARE_IGC_REGKEY(bool, DisableFlagOpt, false, "Disable optimization cmp with logic op", false)
DECLARE_IGC_REGKEY(bool, DisableIfCvt, false, "Disable ifcvt", false)
DECLARE_IGC_REGKEY(bool, EnableVISANoBXMLEncoder, false, "Enable VISA No-BXML encoder", false)
DECLARE_IGC_REGKEY(bool, EnableIGAEncoder, false, "Enable VISA IGA encoder", false)
DECLARE_IGC_REGKEY(bool, EnableVISADumpCommonISA, false, "Enable VISA Dump Common ISA", true)
DECLARE_IGC_REGKEY(bool, DumpVISAASMToConsole, false, "Dump VISAASM to console and do early exit", true)
DECLARE_IGC_REGKEY(bool, DumpASMToConsole, false, "Dump ASM to console and do early exit", true)
DECLARE_IGC_REGKEY(bool, EnableVISABinary, false, "Enable VISA Binary", true)
DECLARE_IGC_REGKEY(bool, EnableVISAOutput, false, "Enable VISA GenISA output", true)
DECLARE_IGC_REGKEY(bool, EnableVISASlowpath, false, "Enable VISA Slowpath. Needed to dump .visaasm", true)
DECLARE_IGC_REGKEY(bool, EnableVISADotAll, false, "Enable VISA DotAll. Dumps dot files for intermediate stages", false)
DECLARE_IGC_REGKEY(bool, EnableVISADebug, false, "Runs VISA in debug mode, all optimizations disabled", false)
DECLARE_IGC_REGKEY(DWORD, EnableVISAStructurizer, 1, "Enable/Disable VISA structurizer. See value defs in igc_flags.hpp.", false)
DECLARE_IGC_REGKEY(bool, EnableVISAJmpi, true, "Enable/Disable VISA generating jmpi (scalar jump).", false)
DECLARE_IGC_REGKEY(bool, ForceVISAStructurizer, false, "Force VISA structurizer for testing. Used on platforms in which we turns off SCF and use UCF by default", false)
DECLARE_IGC_REGKEY(bool, EnableVISABoundsChecking, true, "Enable VISA bounds checking.", false)
DECLARE_IGC_REGKEY(bool, NoMaskWA, true, "Enable NoMask WA by using software-computed emask flag", false)
DECLARE_IGC_REGKEY(bool, ForceNoMaskWA, false, "[tmp, testing] Force NoMaskWA on any platforms", false)
DECLARE_IGC_REGKEY(bool, EnableCallUniform, true, "[tmp, testing] Ignore indirect call's uniform", true)
DECLARE_IGC_REGKEY(bool, EnableCallWA, true, "Control call WA when EU fusion is on. 0: off; 1: on", true)
DECLARE_IGC_REGKEY(bool, EnableMathDPASWA, false, "PVC math instruction running with DPAS issue", false)
DECLARE_IGC_REGKEY(bool, ForceSubReturn, true, "If a subroutine does not have a return, generate a dummy return if this key is set (to meet visa requirement)", false)
DECLARE_IGC_REGKEY(bool, EnableKeepDpasMacro, false, "If enabled, dpas macro sequence from input will not be broken up by visa scheduler", false)
DECLARE_IGC_REGKEY(DWORD,UnifiedSendCycle, 0, "Using unified send cycle.", false)
DECLARE_IGC_REGKEY(DWORD,DisableMixMode, 0, "Disables mix mode in vISA BE.", false)
DECLARE_IGC_REGKEY(DWORD,DisableHFMath, 0, "Disables HF math instructions.", false)
DECLARE_IGC_REGKEY(debugString, VISAOptions, 0, "Options to vISA. Space-separated options.", true)
DECLARE_IGC_REGKEY(DWORD,disableIGASyntax, false, "Disables GEN isa text output using IGA and new syntax.", false)
DECLARE_IGC_REGKEY(DWORD,disableCompaction, false, "Disables compaction.", true)
DECLARE_IGC_REGKEY(DWORD,TotalGRFNum, 0, "Total GRF setting for both IGC-LLVM and vISA", false)
DECLARE_IGC_REGKEY(DWORD,TotalGRFNum4CS, 0, "Total GRF setting for both IGC-LLVM and vISA, for ComputeShader-only experiment.", false)
DECLARE_IGC_REGKEY(DWORD,ReservedRegisterNum, 0, "Reserve register number for spill cost testing.", false)
DECLARE_IGC_REGKEY(bool, ExpandPlane, false, "Enable pln to mad macro expansion.", false)
DECLARE_IGC_REGKEY(bool, DisableGatherRSFusionSyncWA, false, "Disable WA for gather instruction when read suppression and EU fusion are enabled.", true)
DECLARE_IGC_REGKEY(bool, EnableBCR, false, "Enable bank conflict reduction.", true)
DECLARE_IGC_REGKEY(bool, ForceBCR, false, "Force bank conflict reduction, no matter spill or not.", true)
DECLARE_IGC_REGKEY(bool, EnableForceDebugSWSB, false, "Enable force debugging functionality for software scoreboard generation", true)
DECLARE_IGC_REGKEY(DWORD,EnableSWSBInstStall, 0, "Enable force stall to specific(start) instruction start for software scoreboard generation", true)
DECLARE_IGC_REGKEY(DWORD,EnableSWSBInstStallEnd, 0, "Enable force stall to end instruction for software scoreboard generation", true)
DECLARE_IGC_REGKEY(bool, SWSBMakeLocalWAR, false, "make WAR SBID dependence tracking BB local", true)
DECLARE_IGC_REGKEY(bool, PVCSendWARWA, false, "enable PVC send WAR WA", true)
DECLARE_IGC_REGKEY(DWORD,WARSWSBLocalStart, 0, "WAR localization start BB", true)
DECLARE_IGC_REGKEY(DWORD,WARSWSBLocalEnd, 0, "WAR localization end BB", true)
DECLARE_IGC_REGKEY(bool, SWSBReplaceARWithAW, false, "replace .src with .dst", true)
DECLARE_IGC_REGKEY(DWORD,EnableSWSBTokenBarrier, 0, "Enable force specific instruction as a barrier for software scoreboard generation", true)
DECLARE_IGC_REGKEY(DWORD,SWSBTokenNum, 0, "Total tokens used for SWSB.", true)
DECLARE_IGC_REGKEY(bool, EnableGroupScheduleForBC, false, "Enable bank conflict reduction in scheduling.", true)
DECLARE_IGC_REGKEY(bool, EnableIGASWSB, false, "Use IGA for SWSB", true)
DECLARE_IGC_REGKEY(bool, EnableSWSBStitch, false, "Insert dependence resolve for kernel stitching", true)
DECLARE_IGC_REGKEY(bool, DisableRegDistDep, false, "distable regDist dependence", true)
DECLARE_IGC_REGKEY(bool, EnableQuickTokenAlloc, false, "Insert dependence resolve for kernel stitching", true)
DECLARE_IGC_REGKEY(bool, SetA0toTdrForSendc, false, "Set A0 to tdr0 before each sendc/sendsc", true)
DECLARE_IGC_REGKEY(bool, ReplaceIndirectCallWithJmpi, false, "Replace indirect call with jmpi instruction (HW WA)", true)
DECLARE_IGC_REGKEY(bool, ForceUniformSurfaceSampler, false, "Force surface and sampler operand to be uniform", false)
DECLARE_IGC_REGKEY(bool, ForceUniformBuffer, false, "Force buffer operand to be uniform", false)
DECLARE_IGC_REGKEY(bool, AssumeUniformIndirectCall, false, "Assume indirect call is uniform to avoid looping code", false)
DECLARE_IGC_REGKEY(bool, EnableHWGenerateThreadID, true, "Enable new behavior of HW generating threadID for GPGPU pipe. XeHP and non-OCL only.", true)
DECLARE_IGC_REGKEY(bool, EnableHWGenerateThreadIDForTileY, true, "Enable HW generating threadID for GPGPU pipe for TileY mode. XeHP and non-OCL only.", true)
DECLARE_IGC_REGKEY(bool, EnableNonOCLWalkOrderSel, true, "Enable WalkOrder selection for HW generating threadID for GPGPU pipe. XeHP and non-OCL only.", true)
DECLARE_IGC_REGKEY(DWORD,EnablePassInlineData, 0, "1: Force pass 1st GRF of cross-thread payload as inline data; -1: Force disable passing inline data", true)
DECLARE_IGC_REGKEY(bool, ForceInlineDataForXeHPC, false, "Force InlineData for XeHPC. For testing purposes.", true)
DECLARE_IGC_REGKEY(DWORD,ScratchSpaceSizeReserved, 0, "Reserved size of scratch space. XeHP and above only. Test only. Remove it once stabalized.", true)
DECLARE_IGC_REGKEY(DWORD,ScratchSpaceSizeLimit, 0, "Size limit of scratch space. XeHP and above only. Test only. Remove it once stabalized.", true)
DECLARE_IGC_REGKEY(bool, EnablePromoteI8, true, "Enable promoting i8 (char) to i16 on all ALU insts that does support i8. It's only for XeHPC+ for now.", true)
DECLARE_IGC_REGKEY(bool, ForcePromoteI8, false, "Force promoting i8 (char) to i16 on all ALU insts (for testing).", true)
DECLARE_IGC_REGKEY(bool, DumpPromoteI8, false, "Dump useful info during promoting i8 to i16", true)
DECLARE_IGC_REGKEY(bool, EnablePromoteI8Vec, true, "Control if a certain i8 vector needs to be promoted (detail in code)", true)
DECLARE_IGC_REGKEY(DWORD,ForceTexelMaskClear, 0, "If set to 1 or 2, forces evaluate messages to clear the texel mask to 0 or 1, respectively.", true)
DECLARE_IGC_REGKEY(bool, EnablePvtMemHalfToFloat, true, "Enable conversion from half to float for private memory.", true)
DECLARE_IGC_REGKEY(bool, EnableQWRotateInstructions, true, "Enable QW type support for rotate instructions. PVC only.", true)
DECLARE_IGC_REGKEY(bool, DPASTokenReduction, false, "optimization to reduce the tokens used for DPAS instruction.", true)
DECLARE_IGC_REGKEY(bool, EnableAdd3, true, "Enable Add3. XeHP+ only", true)
DECLARE_IGC_REGKEY(bool, EnableBfn, true, "Enable Bfn. XeHP+ only", true)
DECLARE_IGC_REGKEY(bool, SeparateSpillPvtScratchSpace, false, "Separate scratch spaces for spillfill and privatememory. XeHP and above only. Test only. Remove it once stabalized.", true)
DECLARE_IGC_REGKEY(bool, EnableSeparateScratchWA, false, "Apply the workaround in slot0 and slot1 sizes when separating scratch spacesSeparate scratch space.", true)
DECLARE_IGC_REGKEY(bool, DisableThreeALUPipes, false, "Disable three ALU Pipelines. XeHP only", true)
DECLARE_IGC_REGKEY(bool, Enable16DWURBWrite, false, "Enable 16 Dword URB Write messages", true)
DECLARE_IGC_REGKEY(bool, Enable16OWSLMBlockRW, true, "Enable 16 OWord (8 GRF) SLM block read/write message", true)
DECLARE_IGC_REGKEY(bool, Enable64BMediaBlockRW, false, "Enable 64 byte wide media block read/write message", true)
DECLARE_IGC_REGKEY(bool, EnableUntypedSurfRWofSS, true, "Enable untyped surface RW to scratch space. XeHP A0 only.", true)
DECLARE_IGC_REGKEY(DWORD, ForceHWThreadNumberPerEU, 0, "Total HW thread number per-EU.", false)
DECLARE_IGC_REGKEY(bool, UseMathWithLUT, false, "Use the implementations of cos, cospi, log, sin, sincos, and sinpi with Look-Up Tables (LUT).", false)
DECLARE_IGC_REGKEY(bool, GlobalSendVarSplit, false, "Enable global send variable splitting when we are about to spill", false)
DECLARE_IGC_REGKEY(DWORD,EnableSendFusion, 1, "Enable(!=0)/disable(0)/force(2) send fusion. Valid for simd8 shader/kernel only.", false)
DECLARE_IGC_REGKEY(bool, EnableAtomicFusion, false, "To enable/disable atomic send fusion (simd8 shaders). Valid if EnableSendFusion is on.", false)
DECLARE_IGC_REGKEY(bool, Use16ByteBindlessSampler, false, "True if 16-byte aligned bindless sampler state is used", false)
DECLARE_IGC_REGKEY(bool, AvoidDstSrcGRFOverlap, false, "avoid GRF overlap for destination and source operands of an SIMD16/SIMD32 instruction ", false)
DECLARE_IGC_REGKEY(bool, AvoidSrc1Src2Overlap, false, "avoid src1 and src2 GRF overlap to avoid the conflict without read suppression ", false)
DECLARE_IGC_REGKEY(bool, UseLinearScanRA, false, "use Linear Scan as default register allocation algorithm ", false)
DECLARE_IGC_REGKEY(bool, DisableWriteCombine, false, "Disable write combine. PVC+ only", false)
DECLARE_IGC_REGKEY(bool, Force32bitConstantGEPLowering, false, "Go back to old version of GEP lowering for constant address space. PVC only", false)
DECLARE_IGC_REGKEY(bool, NewSpillCostFunction, false, "Use new spill cost function in VISA RA", false)
DECLARE_IGC_REGKEY(bool, EnableCoalesceScalarMoves, true, "Enable scalar moves to be coalesced into fewer moves", true)
DECLARE_IGC_REGKEY(DWORD, EnableSpillSpaceCompression, 2, "Enable spill space compression. 0 - off, 1 - on, 2 - platform default", false)
DECLARE_IGC_REGKEY(DWORD, SpillCompressionThresholdOverride, 0, "Set a threshold number (1K based) to run with spill compression", false)
DECLARE_IGC_REGKEY(bool, EnableRemoveLoopDependency, false, "Enable removing of fantom loop dependency introduced by SROA", true)
DECLARE_IGC_GROUP("IGC Optimization")
DECLARE_IGC_REGKEY(bool, AllowMem2Reg, false, "Setting this to true makes IGC run mem2reg even when optimizations are disabled", true)
DECLARE_IGC_REGKEY(bool, DisableIGCOptimizations, false, "Setting this to 1/true adds a compiler switch to disables all the above IGC optimizations", false)
DECLARE_IGC_REGKEY(bool, DisableLLVMGenericOptimizations, false, "Disable LLVM generic optimization passes", false)
DECLARE_IGC_REGKEY(bool, DisableCodeSinking, false, "Setting this to 1/true adds a compiler switch to disable code-sinking", false)
DECLARE_IGC_REGKEY(bool, DisableCodeSinkingInputVec, false, "Setting this to 1/true disable sinking inputVec inst (test)", false)
DECLARE_IGC_REGKEY(DWORD, CodeSinkingMinSize, 32, "Don't sink if the number of instructions in the kernel is less", false)
// Code Loop Sinking
DECLARE_IGC_REGKEY(bool, DisableLoopSink, false, "Disable sinking in all loops", false)
DECLARE_IGC_REGKEY(bool, ForceLoopSink, false, "Force sinking in all loops", false)
DECLARE_IGC_REGKEY(bool, EnableLoadsLoopSink, true, "Allow sinking of loads in the loop", false)
DECLARE_IGC_REGKEY(bool, ForceLoadsLoopSink, false, "Force sinking of loads in the loop from the beginning", false)
DECLARE_IGC_REGKEY(bool, PrepopulateLoadChainLoopSink, true, "Check the loop for loop chains before sinking to use the existing chains in a heuristic", false)
DECLARE_IGC_REGKEY(bool, EnableLoadChainLoopSink, true, "Allow sinking of load address calculation when the load was sinked to the loop, even if the needed regpressure is achieved (only single use instructions)", false)
DECLARE_IGC_REGKEY(DWORD, LoopSinkRegpressureMargin, 10, "Sink into the loop until the pressure becomes less than #grf-margin", false)
DECLARE_IGC_REGKEY(DWORD, CodeLoopSinkingMinSize, 100, "Don't sink in the loop if the number of instructions in the kernel is less", false)
DECLARE_IGC_REGKEY(DWORD, CodeSinkingLoadSchedulingInstr, 20, "Instructions number to step to schedule loads in advance before the load use to cover latency. 1 to insert it immediately before use", false)
DECLARE_IGC_REGKEY(DWORD, LoopSinkMinSaveUniform, 6, "If loop sink can have save more scalar (uniform) values than this Minimum, do it; otherwise, skip", false)
DECLARE_IGC_REGKEY(DWORD, LoopSinkMinSave, 1, "If loop sink can have save more 32-bit values than this Minimum, do it; otherwise, skip", false)
DECLARE_IGC_REGKEY(DWORD, LoopSinkThresholdDelta, 30, "Do loop sink If the estimated register pressure is higher than this + #avaialble registers", false)
DECLARE_IGC_REGKEY(DWORD, LoopSinkRollbackThreshold, 15, "Rollback loop sinking if the estimated regpressure after the sinking is still higher than this + #available registers, and the number of registers can be increased", false)
DECLARE_IGC_REGKEY(bool, LoopSinkEnableLoadsRescheduling, true, "Allow sinking the loads that are already in the loop", false)
DECLARE_IGC_REGKEY(bool, LoopSinkCoarserLoadsRescheduling, true, "Try to reschedule multi-instruction load candidates in larger chunks. Disabling is experimental and can produce functionally incorrect code.", false)
DECLARE_IGC_REGKEY(bool, LoopSinkEnable2dBlockReads, true, "Allow sinking of the 2d block reads", false)
DECLARE_IGC_REGKEY(bool, LoopSinkEnableVectorShuffle, true, "Allow sinking of the lowered vector shuffle pattern", false)
DECLARE_IGC_REGKEY(bool, LoopSinkForceRollback, false, "Rollback every loop sinking change (for debug purposes only)", false)
DECLARE_IGC_REGKEY(bool, LoopSinkDisableRollback, false, "Disable loopsink rollback completely (even in case of increased regpressure)", false)
DECLARE_IGC_REGKEY(bool, LoopSinkAvoidSplittingDPAS, true, "Sink before the whole DPAS sequence if the first use of the sinked instruction is not the first DPAS", false)
DECLARE_IGC_REGKEY(bool, EnableLoopHoistConstant, false, "Enables pass to check for specific loop patterns where variables are constant across all but the last iteration, and hoist them out of the loop.", false)
DECLARE_IGC_REGKEY(bool, DisableCodeHoisting, false, "Setting this to 1/true adds a compiler switch to disable code-hoisting", false)
DECLARE_IGC_REGKEY(bool, EnableDeSSA, true, "Setting this to 0/false adds a compiler switch to disable De-SSA", false)
DECLARE_IGC_REGKEY(bool, EnableDeSSAWA, true, "[tmp]Keep some piece of code to avoid perf regression", false)
DECLARE_IGC_REGKEY(bool, DisablePayloadCoalescing, false, "Setting this to 1/true adds a compiler switch to disable payload coalescing optimization for all types", false)
DECLARE_IGC_REGKEY(bool, DisablePayloadCoalescing_RT, false, "Setting this to 1/true adds a compiler switch to disable payload coalescing optimization for RT only", false)
DECLARE_IGC_REGKEY(bool, DisablePayloadCoalescing_Sample, false, "Setting this to 1/true adds a compiler switch to disable payload coalescing optimization for Samplers only", false)
DECLARE_IGC_REGKEY(bool, DisablePayloadCoalescing_URB, false, "Setting this to 1/true adds a compiler switch to disable payload coalescing optimization for URB writes only", false)
DECLARE_IGC_REGKEY(bool, DisablePayloadCoalescing_AtomicTyped, false, "Setting this to 1/true adds a compiler switch to disable payload coalescing optimization for atomic typed only", false)
DECLARE_IGC_REGKEY(bool, DisableUniformAnalysis, false, "Setting this to 1/true adds a compiler switch to disable uniform_analysis", false)
DECLARE_IGC_REGKEY(bool, EnableWorkGroupUniformGoto, false, "Setting to 1 enables generating uniform goto for work group uniform [eu fusion only]", false)
DECLARE_IGC_REGKEY(DWORD, DisablePushConstant, 0, "Bit mask to disable push constant per shader stages. bit0 = All, Bit 1 = VS, Bit 2 = HS, Bit 3 = DS, Bit 4 = GS, Bit 5 = PS", false)
DECLARE_IGC_REGKEY(DWORD, DisableAttributePush, 0, "Bit mask to disable push Attribute per shader stages. bit0 = All, Bit 1 = VS, Bit 2 = HS, Bit 3 = DS, Bit 4 = GS", false)
DECLARE_IGC_REGKEY(bool, EnableRobustBufferAccessPush, false, "Setting to 1/true will allow a single push buffer to be supported when the client requests robust buffer access (DG2+ only)", false)
DECLARE_IGC_REGKEY(bool, DisableSimplePushWithDynamicUniformBuffers, false,"Disable Simple Push Constants Optimization for dynamic uniform buffers.", false)
DECLARE_IGC_REGKEY(bool, DisableStaticCheck, false, "Disable static check to push constants.", false)
DECLARE_IGC_REGKEY(bool, DisableStaticCheckForConstantFolding, true, "Disable static check to fold constants.", false)
DECLARE_IGC_REGKEY(int, forcePushConstantMode, 0, "set the push constant mode, 0 is default behavior, 1 is simple push, 2 is gather constant, 3 is none/pull constants", false)
DECLARE_IGC_REGKEY(bool, EnableSimplePushSizeBasedOpimization, true, "Enable the simplepush optimization to do push based on size", false)
DECLARE_IGC_REGKEY(bool, DisableConstantCoalescing, false, "Setting this to 1/true adds a compiler switch to disable constant coalesing", false)
DECLARE_IGC_REGKEY(bool, DisableConstantCoalescingOutOfBoundsCheck, false, "Setting this to 1/true adds a compiler switch to disable constant coalesing out of bounds check", false)
DECLARE_IGC_REGKEY(bool, DisableConstantCoalescingOfStatefulNonUniformLoads, false, "Disable merging non-uniform loads from stateful buffers. Note: does not affect merging to sampler loads", false)
DECLARE_IGC_REGKEY(bool, EnableTextureLoadCoalescing, false, "Enable merging non-uniform loads from bindless textures", false)
DECLARE_IGC_REGKEY(bool, UseHDCTypedReadForAllTextures, false, "Setting this to use HDC message rather than sampler ld for texture read", false)
DECLARE_IGC_REGKEY(bool, UseHDCTypedReadForAllTypedBuffers, false, "Setting this to use HDC message rather than sampler ld for buffer read", false)
DECLARE_IGC_REGKEY(bool, DisableUniformTypedAccess, false, "Setting this will disable uniform typed access handling", false)
DECLARE_IGC_REGKEY(bool, DisableURBWriteMerge, false, "Setting this to 1/true adds a compiler switch to disable URB write merge", false)
DECLARE_IGC_REGKEY(bool, DisableURBReadMerge, false, "Disable IGC pass that merges URB Read instructions.", false)
DECLARE_IGC_REGKEY(bool, DisableURBPartialWritesPass, false, "Disable IGC pass that converts URB partial writes to full-mask writes.", false)
DECLARE_IGC_REGKEY(DWORD, SetURBFullWriteGranularity, 0, "Overrides the minimum access granularity for URB full writes.\
Valid values are 0, 16 and 32, value 0 means use default for the platform.", true)
DECLARE_IGC_REGKEY(bool, DisableUniformURBWrite, false, "Disables generation of uniform URB write messages", false)
DECLARE_IGC_REGKEY(bool, DisableMatchFloor, false, "Setting this to 1/true adds a compiler switch to disable sub-frc = floor optimization", false)
DECLARE_IGC_REGKEY(bool, DisableEmptyBlockRemoval, false, "Setting this to 1/true adds a compiler switch to disable empty block optimization", false)
DECLARE_IGC_REGKEY(bool, DisableSIMD32Slicing, false, "Setting this to 1/true adds a compiler switch to disable emitting SIMD32 VISA code in slices", false)
DECLARE_IGC_REGKEY(bool, DisableMatchMad, false, "Setting this to 1/true adds a compiler switch to disable mul+add = mad optimization", false)
DECLARE_IGC_REGKEY(bool, WaAllowMatchMadOptimizationforVS, false, "Setting this to 1/true adds a compiler switch to enable mul+add = mad optimization for VS", false)
DECLARE_IGC_REGKEY(bool, WaDisableMatchMadOptimizationForCS, false, "Setting this to 1/true adds a compiler switch to disable mul+add = mad optimization for CS", false)
DECLARE_IGC_REGKEY(bool, DisableLoadSinking, false, "Setting this to 1/true adds a compiler switch to disable load sinking during retry", false)
DECLARE_IGC_REGKEY(bool, EnableIntegerMad, true, "Setting this to 1/true adds a compiler switch to enable integer mul+add = mad optimization", false)
DECLARE_IGC_REGKEY(bool, DisableMatchPredAdd, false, "Setting this to 1/true adds a compiler switch to disable pred+add = predAdd optimization", false)
DECLARE_IGC_REGKEY(bool, DisableMatchSimpleAdd, false, "Setting this to 1/true adds a compiler switch to disable simple cmp+and+add optimization", false)
DECLARE_IGC_REGKEY(bool, DisableMatchPow, false, "Setting this to 1/true adds a compiler switch to disable log2/mul/exp2 = pow optimization", false)
DECLARE_IGC_REGKEY(bool, DisableIRVerification, false, "Setting this to 1/true adds a compiler switch to disable IGC IR verification.", false)
DECLARE_IGC_REGKEY(bool, EnableJumpThreading, true, "Setting this to 1/true adds a compiler switch to enable llvm jumpThreading pass.", true)
DECLARE_IGC_REGKEY(bool, DisableLoopUnroll, false, "Setting this to 1/true adds a compiler switch to disable loop unrolling.", true)
DECLARE_IGC_REGKEY(DWORD, RuntimeLoopUnrolling, 0, "Setting this to switch on/off runtime loop unrolling. 0: default (on), 1: force on, 2: force off", false)
DECLARE_IGC_REGKEY(bool, EnableIndVarSimplification, false, "Enables IndVarSimplification pass.", true)
DECLARE_IGC_REGKEY(bool, DisableBranchSwaping, false, "Setting this to 1/true adds a compiler switch to disable branch swapping.", false)
DECLARE_IGC_REGKEY(bool, DisableSynchronizationObjectCoalescingPass, false, "Disable SynchronizationObjectCoalescing pass", false)
DECLARE_IGC_REGKEY(bool, EnableIndependentSharedMemoryFenceFunctionality, false, "Enable treating global memory fences as shared memory fences in SynchronizationObjectCoalescing pass", false)
DECLARE_IGC_REGKEY(DWORD, SynchronizationObjectCoalescingConfig, 0, "Modify the default behavior of SynchronizationObjectCoalescing value is a bitmask bit0 – remove fences in read barrier write scenario", true)
DECLARE_IGC_REGKEY(DWORD, DisableCoalescingSynchronizationObjectMask, 0, "The mask is casted to IGC::SyncInstMask and informs which synchronization objects should not be coalesced. Note that synchronization objects classified in multiple types are not disabled if any bit describing them is off.", true)
DECLARE_IGC_REGKEY(DWORD,SetLoopUnrollThreshold, 0, "Set the loop unroll threshold. Value 0 will use the default threshold.", false)
DECLARE_IGC_REGKEY(DWORD,SetLoopUnrollThresholdForHighRegPressure, 0, "Set the loop unroll threshold for shaders with high reg pressure. Value 0 will use the default threshold.", false)
DECLARE_IGC_REGKEY(DWORD,SetRegisterPressureThresholdForLoopUnroll, 96, "Set the register pressure threshold for limiting the loop unroll to smaller loops", false)
DECLARE_IGC_REGKEY(DWORD,SetBranchSwapThreshold, 400, "Set the branch swaping threshold.", false)
DECLARE_IGC_REGKEY(debugString, LLVMCommandLine, 0, "applies LLVM command line", false)
DECLARE_IGC_REGKEY(debugString, SelectiveHashOptions, 0, "applies options to hash range via string", false)
DECLARE_IGC_REGKEY(bool, DisableDX9LowPrecision, true, "Disables HF in DX9.", false)
DECLARE_IGC_REGKEY(bool, EnablePingPongTextureOpt, true, "Enables the Ping Pong texture optimization which is used only for Compute Shaders for back to back dispatches", false)
DECLARE_IGC_REGKEY(DWORD,EnableAtomicBranch, 0, "Enable Atomic branch optimization that break atomic into if/else. 1: if Val == 0 ignore iadd/sub/umax 0. 2: checks if memory is lower than Val before doing umax. 3: applies both 1 for iadd/sub and 2 for umax", false)
DECLARE_IGC_REGKEY(bool, EnableThreeWayLoadSpiltOpt, false, "Enable three way load spilt opt.", false)
DECLARE_IGC_REGKEY(bool, EnableSamplerChannelReturn, true, "Setting this to 1/true adds a compiler switch to enable using header to return selective channels from sampler", false)
DECLARE_IGC_REGKEY(bool, EnableThreadCombiningOpt, true, "Enables the thread combining optimization which is used only for Compute Shaders for combining a number of software threads to dispatch smaller number of hardware threads", false)
DECLARE_IGC_REGKEY(bool, DisablePromotePrivMem, false, "Setting this to 1/true adds a compiler switch to disable IGC private array promotion", false)
DECLARE_IGC_REGKEY(bool, EnableSimplifyGEP, true, "Enable IGC to simplify indices expr of GEP.", false)
DECLARE_IGC_REGKEY(bool, DisableCustomUnsafeOpt, false, "Disable IGC to run custom unsafe optimizations", false)
DECLARE_IGC_REGKEY(bool, DisableReducePow, false, "Disable IGC to reduce pow instructions", false)
DECLARE_IGC_REGKEY(bool, EnableFastSampleD, false, "Enable fast sample D opt.", false)
DECLARE_IGC_REGKEY(bool, DisableSqrtOpt, false, "Prevent IGC from doing the optimization y*y = x if y = sqrt(x)", false)
DECLARE_IGC_REGKEY(bool, EnableFastMath, false, "Enable fast math optimizations in IGC", false)
DECLARE_IGC_REGKEY(bool, DisableFlattenSmallSwitch, false, "Disable the flatten small switch pass", false)
DECLARE_IGC_REGKEY(bool, DisableIPConstantPropagation, false, "Disable Inter-procedrual constant propgation", false)
DECLARE_IGC_REGKEY(bool, EnableSplitIndirectEEtoSel, true, "Enable the split indirect extractelement to icmp+sel pass", false)
DECLARE_IGC_REGKEY(DWORD, SplitIndirectEEtoSelThreshold, 8, "Split indirect extractelement cost threshold", false)
DECLARE_IGC_REGKEY(bool, DisableImmConstantOpt, false, "Disable IGC IndirectICBPropagaion optimization", false)
DECLARE_IGC_REGKEY(DWORD,MaxImmConstantSizePushed, 256, "Set the max size of immediate constant buffer pushed", false)
DECLARE_IGC_REGKEY(bool, RemoveUnusedSLM, true, "Remove SLM that are not used", false)
DECLARE_IGC_REGKEY(bool, EnableCustomLoopVersioning, true, "Enable IGC to do custom loop versioning", false)
DECLARE_IGC_REGKEY(bool, DisableMCSOpt, false, "Disable IGC to run MCS optimization", false)
DECLARE_IGC_REGKEY(bool, DisableGatingSimilarSamples, false, "Disable Gating of similar sample instructions", false)
DECLARE_IGC_REGKEY(bool, EnableSoftwareVertexFetch, false, "Enable software vertex fetch for VS.", false)
DECLARE_IGC_REGKEY(bool, EnableSoftwareStencil, false, "Enable software stencil for PS.", false)
DECLARE_IGC_REGKEY(bool, EnableInterpreterPatternMatching, true, "Enable Interpreter pattern matching and force retry if the pattern was found.", false)
DECLARE_IGC_REGKEY(bool, EnableSumFractions, false, "Enable SumFractions optimization in CustomUnsafeOptPass.", false)
DECLARE_IGC_REGKEY(bool, EnableExtractCommonMultiplier, false, "Enable ExtractCommonMultiplier optimization in CustomUnsafeOptPass.", false)
DECLARE_IGC_REGKEY(bool, EnablePowToLogMulExp, false, "Enable pow to exp(log(x)*y) optimization in CustomUnsafeOptPass.", false)
DECLARE_IGC_REGKEY(bool, DisablePullConstantHeuristics, true, "Disable the heuristics to determine the no. push constants based on payload size.", false)
DECLARE_IGC_REGKEY(DWORD,PayloadSizeThreshold, 11, "Set the max payload size threshold for short shades that have PSD bottleneck.", false)
DECLARE_IGC_REGKEY(DWORD, BlockPushConstantGRFThreshold, 0xFFFFFFFF,
"Set the maximum limit for block push constants i.e. UBO data pushed.\
Set to 0xFFFFFFFF to use the default threshold for the platform.\
Note that for small pixel shaders the PayloadSizeThreshold may be the limiting factor.", false)
DECLARE_IGC_REGKEY(bool, PSSIMD32HeuristicFP16, true, "enable PS SIMD32 heuristic based on fp16 characteristic ", false)
DECLARE_IGC_REGKEY(bool, PSSIMD32HeuristicLoopAndDiscard, true, "enable PS SIMD32 heuristic based on loop info and discard", false)
DECLARE_IGC_REGKEY(bool, EnableBlendToDiscard, true, "Enable blend to discard based on blend state.", false)
DECLARE_IGC_REGKEY(bool, EnableBlendToFill, true, "Enable blend to fill based on blend state.", false)
DECLARE_IGC_REGKEY(bool, UseTiledCSThreadOrder, true, "Use 4x4 disaptch for CS order when it seems beneficial", false)
DECLARE_IGC_REGKEY(bool, EnableWaveForce32, false, "Force Wave to use simd32", false)
DECLARE_IGC_REGKEY(bool, ForceLinearWalkOnLinearUAV, false, "Force linear walk on linear UAV buffer", false)
DECLARE_IGC_REGKEY(bool, ForceSupportsStaticRegSharing, false, "ForceSupportsStaticRegSharing", true)
DECLARE_IGC_REGKEY(bool, ForceSupportsAutoGRFSelection, false, "ForceSupportsAutoGRFSelection", true)
DECLARE_IGC_REGKEY(bool, forceFullUrbWriteMask, true, "Set Full URB write mask.", false)
DECLARE_IGC_REGKEY(DWORD, RovOpt, 3, "Bitmask for ROV optimizations. 0 for all off, 1 for force fence flush none, 2 for setting LSC_L1UC_L3C_WB, 3 for both opt on", false)
//DECLARE_IGC_REGKEY(bool, EnablePlatformFenceOpt, true, "Force fence optimization", false)
DECLARE_IGC_REGKEY(bool, EnableLSCFence, true, "Enable LSC Fence in ConvertDXIL for the device has LSC", false)
DECLARE_IGC_REGKEY(bool, EnableSLMConstProp, true, "Enable SLM constant propagation (compute shader only).", false)
DECLARE_IGC_REGKEY(bool, EnableStatelessToStateful, true, "Enable Stateless To Stateful transformation for global and constant address space in OpenCL kernels", false)
DECLARE_IGC_REGKEY(bool, EnableStatefulToken, true, "Enable generating patch token to indicate a ptr argument is fully converted to stateful (temporary)", false)
DECLARE_IGC_REGKEY(bool, DisableConstBaseGlobalBaseArg, false, "Do no generate kernel implicit arguments: constBase and globalBase", false)
DECLARE_IGC_REGKEY(bool, EnableGenUpdateCB, false, "Enable derived constant optimization.", false)
DECLARE_IGC_REGKEY(bool, EnableGenUpdateCBResInfo, false, "Enable derived constant optimization with resinfo.", false)
DECLARE_IGC_REGKEY(bool, EnableHighestSIMDForNoSpill, false, "When there is no spill choose highest SIMD (compute shader only).", false)
DECLARE_IGC_REGKEY(bool, ForceAddressArithSinking, false, "Force sinking address arithmetic closer to the usage", false)
DECLARE_IGC_REGKEY(bool, SetDefaultTileYWalk, true, "Use TileY walk as default for HW generating threadID", true)
DECLARE_IGC_REGKEY(bool, ForceTileY, false, "Force TileY mode on DG2", false)
DECLARE_IGC_REGKEY(DWORD, EnableNewTileYCheck, 2, "Enable new TileY check. 0 - off, 1 - on, 2 - platform default", false)
DECLARE_IGC_REGKEY(DWORD, KeepTileYForFlattened, 2, "Keep TileY for FlattenedThreadIdInGroup. 0 - off, 1 - on, 2 - platform default", false)
DECLARE_IGC_REGKEY(bool, EnableSelectCSWalkOrderPass, false, "Enable SelectCSWalkOrderPass at the earlier stage than PreCompile time", false)
DECLARE_IGC_REGKEY(bool, DisableDynamicTextureFolding, false, "Disable Dynamic Texture Folding", false)
DECLARE_IGC_REGKEY(bool, DisableDynamicResInfoFolding, true, "Disable Dynamic ResInfo Instruction Folding", false)
DECLARE_IGC_REGKEY(bool, DisableRectListOpt, false, "Disable Rect List optimization", false)
DECLARE_IGC_REGKEY(DWORD, EnableCodeAssumption, 1, \
"If set (> 0), generate llvm.assume to help certain optimizations. It is OCL only for now. \
Only 1 and 2 are valid. 2 will be 1 plus additional assumption. It also does other minor changes.", false)
DECLARE_IGC_REGKEY(bool, EnableHoistMulInLoop, true,
"Hoist multiply with loop invirant out of loop, FP unsafe", false)
DECLARE_IGC_REGKEY(bool, EnableGVN, true,
"Enable LLVM global value numbering", false)
DECLARE_IGC_REGKEY(bool, EnableLogicalAndToBranch, true,
"Enable convert logical AND to conditional branch", false)
DECLARE_IGC_REGKEY(bool, DisableMovingInstanceIDIndexOfVS, false, "Disable moving index of InstanceID in VS to last location.", false)
DECLARE_IGC_REGKEY(bool, EnableSplitUnalignedVector, true, "Enable Splitting of unaligned vectors for loads and stores", false)
DECLARE_IGC_REGKEY(bool, DisableFDivReassociation, false, "Disable reassociation for Fdiv operations to avoid precision difference", false)
DECLARE_IGC_REGKEY(bool, EnableTrigFuncRangeReduction, false, "reduce the sin and cosing function domain range", true)
DECLARE_IGC_REGKEY(bool, EnableUnmaskedFunctions, true, "Enable unmaksed functions SYCL feature.", true)
DECLARE_IGC_REGKEY(bool, EnableStatefulAtomic, false, "Enable promoting stateless atomic to stateful atomic.", false)
DECLARE_IGC_REGKEY(bool, EnableHoistDp3, false, "Enable dp3 Hoisting.", false)
DECLARE_IGC_REGKEY(bool, ForceHoistDp3, false, "force dp3 Hoisting.", false)
DECLARE_IGC_REGKEY(bool, EnableBitcastedLoadNarrowing, false, "Enable narrowing of vector loads in bitcasts patterns.", false)
DECLARE_IGC_REGKEY(bool, EnableBitcastedLoadNarrowingToScalar, false, "Enable narrowing of vector loads to scalar ones in bitcasts patterns.", false)
DECLARE_IGC_REGKEY(bool, EnableOptReportLoadNarrowing, false, "Generate opt report for narrowing of vector loads.", false)
DECLARE_IGC_REGKEY(bool, EnableGEPLSR, true, "Enables GEP Loop Strength Reduction pass", true)
DECLARE_IGC_REGKEY(bool, RunGEPLSRAfterLICM, false, "Runs GEP Loop Strength Reduction pass after first LICM", true)
DECLARE_IGC_REGKEY(DWORD, GEPLSRThresholdRatio, 100, "Ratio for register pressure threshold in GEP Loop Strength Reduction pass", true)
DECLARE_IGC_REGKEY(bool, EnableGEPLSRToPreheader, true, "Enables reduction to loop's preheader in GEP Loop Strength Reduction pass", true)
DECLARE_IGC_REGKEY(bool, EnableGEPLSRAnyIntBitWidth, false, "Experimental: Enables reduction of SCEV with illegal integers. Requires legalization pass to clear up expanded code.", true)
DECLARE_IGC_REGKEY(bool, EnableGEPLSRMulExpr, false, "Experimental: Enables reduction of SCEV with mul expression.", true)
DECLARE_IGC_REGKEY(bool, EnableGEPLSRUnknownConstantStep, false, "Experimental: Enables reduction of SCEV with step expressed with constant value unknown at compilation time.", true)
DECLARE_IGC_REGKEY(bool, PrintWaveClusteredInterleave, false, "(Debug) Print if WaveClusteredInterleave pattern was found.", true)
DECLARE_IGC_REGKEY(DWORD, FPRoundingModeCoalescingMaxDistance, 20, "Max distance in instructions for reordering FP instructions with common rounding mode", false)
DECLARE_IGC_REGKEY(bool, DisableDotAddToDp4aMerge, false, "Disable Dot and Add ops to Dp4a merge optimization.", false)
DECLARE_IGC_REGKEY(bool, DisableLoopSplitWidePHIs, false, "Disable splitting of loop PHI values to eliminate subvector extract operations", false)
DECLARE_IGC_REGKEY(bool, EnableBarrierControlFlowOptimizationPass, false, "Enable barrier control flow optimization pass", false)
DECLARE_IGC_GROUP("Shader debugging")
DECLARE_IGC_REGKEY(bool, CopyA0ToDBG0, false, " Copy a0 used for extended msg descriptor to dbg0 to help debug", false)
DECLARE_IGC_REGKEY(bool, EnableDebugging, false, " Enable shader debugging for release internal", false)
DECLARE_IGC_REGKEY_BITMASK(GenerateOptionsFile, 0, "Create Options.txt(usually for SIMD related bugs to narrow down shaders), in the shader dump folder.", SHADER_TYPE_MASKS, false)
DECLARE_IGC_REGKEY(bool, ForceDisableShaderDebugHashCodeInKernel, false, "Disable hash code addition to the binary after EOT", true)
DECLARE_IGC_REGKEY(bool, EnableHashMovsAtPrologue, false, "Rather than after EOT, insert hash code movs at shader entry", true)
DECLARE_IGC_REGKEY(bool, ShaderDebugHashCodeInKernel, false, "Add hash code to the binary", true)
DECLARE_IGC_REGKEY(int, ShaderDebugHashCode, 0, "The driver will set a breakpoint in the first instruction of the shader which has the provided hash code.\
It works only when the value is different then 0 and SystemThreadEnable is set to TRUE.\
Ex: VS_asm2df26246434553ad_nos0000000000000000 , only the LowPart Need \
to be Enterd in Registry Ex : 0x434553ad ,i.e Lower 8 Hex Digits of the 16 Digit Hash Code \
for Compatibilty Reasons", false)
DECLARE_IGC_REGKEY(bool, EnableZeroSomeARF, false, "If set, insert mov inst to zero a0, acc, etc to assist HW debugging.", false)
DECLARE_IGC_REGKEY(DWORD, ShaderDisableOptPassesAfter, 0, "Will only run first N optimization passes, any further passes will be ignored. This flag can be used to bisect optimization passes.", false)
DECLARE_IGC_REGKEY(bool, ShaderOverride, false, "Will override any LLVM shader with matching name in c:\\Intel\\IGC\\ShaderOverride", false)
DECLARE_IGC_REGKEY(bool, CompileOneAtTime, false, "Compile only one kernel (out of many in llvm::module) at a time. Prints compiled kenrels names to stdout. Useful to debug compilation time and crashes - it does not produce valid binary.", false)
DECLARE_IGC_REGKEY(bool, SystemThreadEnable, false, "This key forces software to create a system thread. The system thread may still be created by software even \
if this control is set to false.The system thread is invoked if either the software requires \
exception handling or if kernel debugging is active and a breakpoint is hit.", false)
DECLARE_IGC_REGKEY(bool, EnableSIPOverride, false, "This key forces load of SIP from a a Local File.", false)
DECLARE_IGC_REGKEY(debugString, SIPOverrideFilePath, 0, "This key when enabled with EnableSIPOverride load of SIP from a specified path.", false)
DECLARE_IGC_REGKEY(bool, DumpPayloadToScratch, false, "Setting this to 1/true dumps thread payload to scartch space. Used for workloads which doesnt use scartch space for other purposes", false)
DECLARE_IGC_REGKEY(DWORD, DebugInternalSwitch, 0, "Code pass selection, debug only", false)
DECLARE_IGC_REGKEY(bool, SToSProducesPositivePointer, false, "This key is for StatelessToStateful optimization if the user knows the pointer offset is postive to the kernel argument.", false)
DECLARE_IGC_REGKEY(bool, EnableSupportBufferOffset, false, "[debugging]For StatelessToStateful optimization [OCL], support implicit buffer offset argument (same as -cl-intel-has-buffer-offset-arg).", false)
DECLARE_IGC_REGKEY(bool, EnableOptionalBufferOffset, true, "For StatelessToStateful optimization [OCL], if true, make buffer offset optional. Valid only if buffer offset is supported.", true)
DECLARE_IGC_REGKEY(bool, EnableTestIGCBuiltin, false, "Enable testing igc builtin (precompiled kernels) using OCL.", false)
DECLARE_IGC_REGKEY(bool, TestIGCPreCompiledFunctions, false, "Enable testing for precompiled kernels. [TEST ONLY]", false)
DECLARE_IGC_REGKEY(DWORD, ForceEmuKind, 0, "Force emuKind used by PreCompiledFuncImport pass. This flag takes emulation kind value that is defined in EmuKind enum in PreCompiledFuncImport.hpp [TEST ONLY]", false)
DECLARE_IGC_REGKEY(bool, EnableCSSIMD32, false, "Enable computer shader SIMD32 mode, and fall back to lower SIMD when spill", false)
DECLARE_IGC_REGKEY(bool, ForceCSSIMD32, false, "Force computer shader SIMD32 mode", false)
DECLARE_IGC_REGKEY(bool, ForceCSSIMD16, false, "Force computer shader SIMD16 mode if allowed, otherwise it will use SIMD32", false)
DECLARE_IGC_REGKEY(bool, ForceCSLeastSIMD, false, "Force computer shader to the lowest allowed SIMD mode", false)
DECLARE_IGC_REGKEY(bool, ForceRecompilation, false, "Force RetryManager to make recompilation", false)
DECLARE_IGC_REGKEY(DWORD, RouteByLodHint, 0, "An integer offset addon to route the resource to HDC on DG2", false)
DECLARE_IGC_REGKEY(bool, EnableTrivialEmulateSinCos, false, "Enable Emulation for Sine and Cosine instructions", false)
DECLARE_IGC_REGKEY(DWORD, ld2dmsInstsClubbingThreshold, 3, "Do not club more than these ld2dms insts into the new BB during MCSOpt", false)
DECLARE_IGC_REGKEY(DWORD, ForcePerThreadPrivateMemorySize, 0, "Useful for ensuring a certain amount of private memory when doing a shader override.", true)
DECLARE_IGC_REGKEY(DWORD, RetryManagerFirstStateId, 0, "For debugging purposes, it can be useful to start on a particular id rather than id 0.", false)
DECLARE_IGC_REGKEY(bool, DisableSendSrcDstOverlapWA, false, "Disable Send Source/destination overlap WA which is enabled for GEN10/GEN11 and whenever Wddm2Svm is set in WATable", false)
DECLARE_IGC_REGKEY(debugString, DisablePassToggles, 0, "Disable each IGC pass by setting the bit. HEXADECIMAL ONLY!. Ex: C0 is to disable pass 6 and pass 7.", false)
DECLARE_IGC_REGKEY(bool, ShaderDisplayAllPassesNames, false, "Display to console all passes name with their ID and occurrence number.", false)
DECLARE_IGC_REGKEY(debugString, ShaderPassDisable, 0, "Disable specific passes eg. '9;17-19;239-;Error Check;ResolveOCLAtomics:2;Dead Code Elimination:3-5;BreakConstantExprPass:7-' \
disable pass 9, disable passes from 17 to 19, disable all passes after 238, disable all occurrences of pass Error Check, \
disable second occurrence of ResolveOCLAtomics, disable pass Dead Code Elimination occurrences from 3 to 5, \
disable all BreakConstantExprPass after his 6 occurrence \
To show a list of pass names and their occurrence set ShaderDisplayAllPassesNames.\
Must be used with ShaderDumpEnableAll flag.", false)
DECLARE_IGC_REGKEY(bool, PrintVerboseGenericControlFlowLog, 0, "Forces compiler to print detailed log about additional control flow generated due to a presence of generic memory operations", true)
DECLARE_IGC_REGKEY(bool, ForceStatelessForQueueT, true, "In OCL, force to use stateless memory to hold queue_t*. This is a legacy feature to be removed.", false)
DECLARE_IGC_REGKEY(bool, ForceMemoryFenceBeforeEOT, false, "Forces inserting SLM or gloabal memory fence before EOT if shader writes to SLM or goblam memory respectively.", false)
DECLARE_IGC_REGKEY(bool, EnableRTmaskPso, true, "Enable render target mask optimization in PSO opt", false)
DECLARE_IGC_REGKEY(DWORD, MSAAClearedKernel, 0, "Insert the discard code for MSAA_MSC_Cleared kernels. 2/4/8/16", false)
DECLARE_IGC_REGKEY(bool, EnablerReadSuppressionWA, true, "Enable read suppression WA for the send and indirect access", false)
DECLARE_IGC_REGKEY(bool, EnableLSCFenceUGMBeforeEOT, true, "Enable inserting fence.ugm.06.tile before EOT if a kernel has any write to UGM [XeHPC, PVC].", true)
DECLARE_IGC_REGKEY(bool, EnableRTLSCFenceUGMBeforeEOT, true, "[tmp]Enable inserting fence.ugm.06.tile before EOT for RT shader [XeHPC, PVC].", false)
DECLARE_IGC_REGKEY(bool, manualEnableRSWA, false, "Enable read suppression WA for the send and indirect access", false)
DECLARE_IGC_REGKEY(bool, DPASReadSuppressionWA, true, "Enable read suppression WA for the send and indirect access", false)
DECLARE_IGC_REGKEY(bool, EnableDivergentBarrierCheck, false, "Uses WIAnalysis to find barriers in divergent flow control. May have false positives.", false)
DECLARE_IGC_REGKEY(bool, EnableBitcastExtractInsertPattern, true, "Enable BitcastExtractInsertPattern in CustomSafeOptPass.", true)
DECLARE_IGC_REGKEY(DWORD, ForceLoosenSimd32Occu, 2, "Control loosenSimd32occu return value. 0 - off, 1 - on, 2 - platform default", false)
DECLARE_IGC_REGKEY(bool, ForceFunctionsToNop, false, "Replace functions with immediate return to help narrow down shaders; use with Options.txt.", false)
DECLARE_IGC_GROUP("Shader dumping")
DECLARE_IGC_REGKEY(bool, EnableCosDump, false, "Enable cos dump", true)
DECLARE_IGC_REGKEY(bool, EnableCisDump, false, "Enable cis dump", true)
DECLARE_IGC_REGKEY(bool, DumpLLVMIR, false, "dump LLVM IR", true)
DECLARE_IGC_REGKEY(bool, QualityMetricsEnable, false, "Enable Quality Metrics for IGC", true)
DECLARE_IGC_REGKEY(bool, ShaderDumpEnable, false, "dump LLVM IR, visaasm, and GenISA", true)
DECLARE_IGC_REGKEY(bool, ShaderDumpEnableAll, false, "dump all LLVM IR passes, visaasm, and GenISA", true)
DECLARE_IGC_REGKEY(DWORD, ShaderDumpEnableG4, false, "same as ShaderDumpEnable but adds G4 dumps (0 = off, 1 = some, 2 = all)", 0)
DECLARE_IGC_REGKEY(DWORD, ShaderDumpEnableIGAJSON, false, "adds IGA JSON output to shader dumps (0 = off, 1 = enabled, 2 = include def/use info but causes longer compile times)", 0)
DECLARE_IGC_REGKEY(bool, ShaderDumpEnableRAMetadata, false, "adds RA Metadata file to shader dumps", true)
DECLARE_IGC_REGKEY(bool, ShaderDumpInstNamer, false, "dump all unnamed LLVM IR instruction with variable names 'tmp' which makes easier for shaderoverriding", true)
DECLARE_IGC_REGKEY(debugString, ShaderDumpFilter, 0, "Only dump files matching the given regex", true)
DECLARE_IGC_REGKEY(bool, DumpZEInfoToConsole, false, "Dump zeinfo to console", true)
DECLARE_IGC_REGKEY(debugString, ProgbinDumpFileName, 0, "Specify filename to use for dumping progbin file to current dir", true)
DECLARE_IGC_REGKEY(bool, ElfDumpEnable, false, "dump ELF file", true)
DECLARE_IGC_REGKEY(bool, ElfTempDumpEnable, false, "dump temporary ELF files", true)
DECLARE_IGC_REGKEY(debugString, DebugDumpNamePrefix, 0, "Set a prefix to debug info dump filenames(with path) and drop hash info from them (for testing purposes)", true)
DECLARE_IGC_REGKEY(bool, ShowFullVectorsInShaderDumps, false, "print all elements of vectors in ShaderDumps, can dramatically increase ShaderDumps size", true)
DECLARE_IGC_REGKEY(bool, PrintHexFloatInShaderDumpAsm, true, "print floats in hex in asm dump", true)
DECLARE_IGC_REGKEY(bool, PrintInstOffsetInShaderDumpAsm, false, "print instruction offsets as comments in asm dump", true)
DECLARE_IGC_REGKEY(debugString, PrintAfter, 0, "Take either all or comma/semicolon-separated list of pass names. If set, enable print LLVM IR after the given pass is done (mimic llvm print-after)", true)
DECLARE_IGC_REGKEY(debugString, PrintBefore, 0, "Take either all or comma/semicolon-separated list of pass names. If set, enable print LLVM IR before the given pass is done (mimic llvm print-before)", true)
DECLARE_IGC_REGKEY(bool, PrintMDBeforeModule, false, "Print metadata of the module at the beginning of the dump. Used for LIT tests.", true)
DECLARE_IGC_REGKEY(bool, DumpUseShorterName, true, "If set, use an internal shader name(_entry_id) in dump file name", true)
DECLARE_IGC_REGKEY(bool, EnableKernelNamesBasedHash, false, "If set, use kernels' names to calculate the hash. Doesn't work on .cl dump's hash. Will overwrite dumps if multiple modules have the same kernel names.", false)
DECLARE_IGC_REGKEY(bool, InterleaveSourceShader, true, "Interleave the source shader in asm dump", true)
DECLARE_IGC_REGKEY(bool, ShaderDumpPidDisable, false, "disabled adding PID to the name of shader dump directory", true)
DECLARE_IGC_REGKEY(bool, DumpToCurrentDir, false, "dump shaders to the current directory", true)
DECLARE_IGC_REGKEY(debugString, DumpToCustomDir, 0, "Dump shaders to custom directory. Parent directory must exist.", true)
DECLARE_IGC_REGKEY(bool, EnableShaderNumbering, false, "Number shaders in the order they are dumped based on their hashes", true)
DECLARE_IGC_REGKEY(bool, PrintToConsole, false, "dump to console", true)
DECLARE_IGC_REGKEY(bool, EnableCapsDump, false, "Enable hardware caps dump", true)
DECLARE_IGC_REGKEY(bool, EnableLivenessDump, false, "Enable dumping out liveness info on stderr.", true)
DECLARE_IGC_REGKEY(DWORD, ForceRPE, 0, "Force RPE (RegisterEstimator) computation if > 0. If 2, force RPE per inst.", true)
DECLARE_IGC_REGKEY(DWORD, RPEDumpLevel, 0, "> 0 : dump info of register pressure estimate on stderr. See igc_flags.hpp level defs.", false)
DECLARE_IGC_REGKEY(bool, DumpOCLProgramInfo, false, "dump OpenCL Patch Tokens, Kernel/Program Binary Header", true)
DECLARE_IGC_REGKEY(bool, DumpPatchTokens, false, "Enable dumping of patch tokens.", true)
DECLARE_IGC_REGKEY(bool, DumpVariableAlias, false, "Dump variable alias info, valid if EnableVariableAlias is on", true)
DECLARE_IGC_REGKEY(bool, DumpResourceLoop, false, "dump resource loop detected by ResourceLoopAnalysis", true)
DECLARE_IGC_REGKEY(bool, DumpDeSSA, false, "dump DeSSA info into file.", true)
DECLARE_IGC_REGKEY(bool, DumpWIA, false, "dump WI (uniform) infomation into files in dump directory if set to true", false)
DECLARE_IGC_REGKEY(bool, EnableScalarizerDebugLog, false, "print step by step scalarizer debug info.", true)
DECLARE_IGC_REGKEY(bool, DumpTimeStats, false, "Timing of translation, code generation, finalizer, etc", true)
DECLARE_IGC_REGKEY(bool, DumpTimeStatsCoarse, false, "Only collect/dump coarse level time stats, i.e. skip opt detail timer for now", true)
DECLARE_IGC_REGKEY(bool, DumpTimeStatsPerPass, false, "Collect Timing of IGC/LLVM passes", true)
DECLARE_IGC_REGKEY(bool, DumpHasNonKernelArgLdSt, false, "Print if hasNonKernelArg load/store to stderr", true)
DECLARE_IGC_REGKEY(bool, PrintPsoDdiHash, true, "Print psoDDIHash in TimeStats_Shaders.csv file", true)
DECLARE_IGC_REGKEY(bool, ShaderDataBaseStats, false, "Enable gathering sends' sizes for shader statistics", false)
DECLARE_IGC_REGKEY(bool, DumpLoopSink, false, "Dump debug info in LoopSink", false)
DECLARE_IGC_REGKEY(debugString, ShaderDataBaseStatsFilePath, 0, "Path to a file with dumped shader stats additional data e.g. data available during compilation only", false)
DECLARE_IGC_REGKEY(bool, EnableRemarks, false, "Enable remark for Divergent Barrier", false)
DECLARE_IGC_REGKEY(bool, AddExtraIntfInfo, false, "Will add extra inteference info from .extraintf files from c:\\Intel\\IGC\\ShaderOverride", false)
DECLARE_IGC_GROUP("Debugging features")
DECLARE_IGC_REGKEY(debugString, ForceSpillVariables, 0, "comma-separated string, each provide the declare id of variable which will be spilled", true)
DECLARE_IGC_REGKEY(debugString, ForceAssignRhysicalReg, 0, "Force assigning dclId to phyiscal reg.", true)
DECLARE_IGC_REGKEY(bool, InitializeUndefValueEnable, false, "Setting this to 1/true initializes all undefs in URB payload to 0", false)
DECLARE_IGC_REGKEY(bool, InitializeRegistersEnable, false, "Setting this to 1/true initializes all GRFs, Flag and address registers to 0 at the beginning of the shader", false)
DECLARE_IGC_REGKEY(bool, InitializeAddressRegistersBeforeUse, false, "Setting this to 1 (true) initializes address register to 0 before each use", false)
DECLARE_IGC_REGKEY(bool, AvoidUsingR0R1, false, "Do not use r0 and r1 as generic usage registers", false)
DECLARE_IGC_REGKEY(bool, EnableRelocations, false, "Setting this to 1 (true) makes IGC emit relocatable ELF with debug info", true)
DECLARE_IGC_REGKEY(bool, EnableWriteOldFPToStack, true, "Setting this to 1 (true) writes the caller frame's frame-pointer to the start of callee's frame on stack, to support stack walk", false)
DECLARE_IGC_REGKEY(bool, ZeBinCompatibleDebugging, true, "Setting this to 1 (true) enables embed debug info in zeBinary", true)
DECLARE_IGC_REGKEY(bool, DebugInfoEnforceAmd64EM, false, "Enforces elf file with the debug infomation to have eMachine set to AMD64", false)
DECLARE_IGC_REGKEY(bool, DebugInfoValidation, false, "Enable optional (strict) checks to detect debug information inconsistencies", false)
DECLARE_IGC_REGKEY(bool, deadLoopForFloatException, false, "enable a dead loop if float exception happened", false)
DECLARE_IGC_REGKEY(debugString, ExtraOCLOptions, 0, "Extra options for OpenCL", true)
DECLARE_IGC_REGKEY(debugString, ExtraOCLInternalOptions, 0, "Extra internal options for OpenCL", true)
DECLARE_IGC_REGKEY(bool, UseVISAVarNames, false, "Make VISA generate names for virtual variables so they match with dbg file", true)
DECLARE_IGC_REGKEY(DWORD, MetricsDumpEnable, 0, "Dump IGC Metrics to file *.optrpt in current working directory.\
Setting to 0 - disabled, 1 - makes in binary format, 2 - makes in plain-text format.", true)
DECLARE_IGC_REGKEY(bool, PrintDebugSettings, false, "Prints all non-default debug settings", false)
DECLARE_IGC_REGKEY(bool, UseMTInLLD, false, "Use multi-threading when linking multiple elf files", true)
DECLARE_IGC_REGKEY(bool, NoCatchAllDebugLine, false, "Don't emit special placeholder instruction to map VISA orphan instructions", false)
DECLARE_IGC_REGKEY(bool, EnableTestSplitI64, false, "Test legalization that split i64 store unnecessarily, to be deleted once test is done[temp]", true)
DECLARE_IGC_REGKEY(bool, ShaderDumpTranslationOnly, false, "Dump LLVM IR right after translation from SPIRV to stderr and ignore all passes", false)
DECLARE_IGC_REGKEY(bool, UseVMaskPredicate, false, "Use VMask as predicate for subspan usage", false)
DECLARE_IGC_REGKEY(bool, UseVMaskPredicateForLoads, true, "Use VMask as predicate for subspan usage (loads only)", true)
DECLARE_IGC_REGKEY(bool, UseVMaskPredicateForIndirectMove, true, "Use VMask as predicate for subspan usage (indirect mov only)", true)
DECLARE_IGC_REGKEY(bool, StackOverflowDetection, false, "Inserts checks for stack overflow when stack calls are used.", true)
DECLARE_IGC_REGKEY(bool, BufferBoundsChecking, false, "Setting this to 1 (true) enables buffer bounds checking", false)
DECLARE_IGC_REGKEY(DWORD, MinimumValidAddress, 0, "If it's greater than 0, it enables minimal valid address checking where the threshold is the given value (in hex).", false)
DECLARE_IGC_GROUP("IGC Features")
DECLARE_IGC_REGKEY(bool, EnableOCLSIMD16, true, "Enable OCL SIMD16 mode", true)
DECLARE_IGC_REGKEY(bool, EnableOCLSIMD32, true, "Enable OCL SIMD32 mode", true)
DECLARE_IGC_REGKEY(DWORD, ForceOCLSIMDWidth, 0, "Force using SIMD width specified. 0 : no forcing. This overrides driver forced SIMD value(if any) and runtime behaviour could be different if driver expects something fixed", true)
DECLARE_IGC_REGKEY(bool, SendMultipleSIMDModesCS, true, "Send multiple SIMD modes for CS", false)
DECLARE_IGC_REGKEY(DWORD, OCLSIMD16SelectionMask, 6, "Select SIMD 16 heuristics. Valid values are 0, 1, 2 and 3", false)
DECLARE_IGC_REGKEY(bool, EnableHSSinglePatchDispatch, false, "Setting this to 1/true enables SIMD8 single-patch dispatch in HullShader. Default is either SIMD8 single patch/dual patch dispatch based on control point count", false)
DECLARE_IGC_REGKEY(bool, DisableGPGPUIndirectPayload, false, "Disable OCL indirect GPGPU payload", false)
DECLARE_IGC_REGKEY(bool, DisableDSDualPatch, false, "Setting it to true with enable Single and Dual Patch dispatch mode for Domain Shader", false)
DECLARE_IGC_REGKEY(bool, DisableMemOpt, false, "Disable MemOpt, merging load/store", true)
DECLARE_IGC_REGKEY(DWORD, MemOptGEPCanon, 2, "[test] GEP canonicalization in MemOpt. 0 : enable; 1: disable; 2: disable only for OCL;", true)
DECLARE_IGC_REGKEY(bool, DisableMemOpt2, false, "Disable MemOpt2", false)
DECLARE_IGC_REGKEY(bool, EnableExplicitCopyForByVal, true, "Enable generating an explicit copy (alloca + memcpy) in a caller for aggregate argumentes with byval attribute", true)
DECLARE_IGC_REGKEY(DWORD, EnableLdStCombine, 1, "Enable load/store combine pass if set to 1 (lsc message only) or 2; bit 3 = 1 [tmp for testing] : enabled load combine (intend to replace memopt)", true)
DECLARE_IGC_REGKEY(DWORD, MaxStoreVectorSizeInBytes, 0, "[LdStCombine] the max non-uniform vector size for the coalesced store. 0: compiler choice (default, 16(4DW)); others: 4/8/16/32", true)
DECLARE_IGC_REGKEY(DWORD, MaxLoadVectorSizeInBytes, 0, "[LdStCombine] the max non-uniform vector size for the coalesced load. 0: compiler choice (default, 16(4DW)); others: 4/8/16/32", true)
DECLARE_IGC_REGKEY(bool, DisableMergeStore, false, "[temp]If EnableLdStCombine is on, disable mergestore (memopt) if this is set. Temp key for testing", true)
DECLARE_IGC_REGKEY(DWORD,MaxLiveOutThreshold, 0, "Max LiveOut Threshold in MemOpt2", false)
DECLARE_IGC_REGKEY(bool, DisableScalarAtomics, false, "Disable the Scalar Atomics optimization", false)
DECLARE_IGC_REGKEY(bool, EnableScalarTypedAtomics, true, "Enable the Scalar Typed Atomics optimization", false)
DECLARE_IGC_REGKEY(bool, EnableSelectiveScalarizer, false, "enable selective scalarizer on GPGPU path", true)
DECLARE_IGC_REGKEY(bool, HoistPSConstBufferValues, true, "Hoists up down converts for contant buffer accesses, so they an be vectorized more easily.", false)
DECLARE_IGC_REGKEY(bool, EnableSingleVertexDispatch, false, "Vertex Shader Single Patch Dispatch Regkey", false)
DECLARE_IGC_REGKEY(bool, allowLICM, true, "Enable LICM in IGC.", true)
DECLARE_IGC_REGKEY(bool, allowDecompose2DBlockFuncs, true, "Enable decomposition of 2D block intrinsics in IGC.", true)
DECLARE_IGC_REGKEY(bool, allowImmOff2DBlockFuncs, false, "Allow compiler to decide to use immediate offsets in 2D block intrinsics in IGC.", false)
DECLARE_IGC_REGKEY(DWORD, CSSpillThresholdSLM, 0, "Spill Threshold for CS SIMD16 with SLM", false)
DECLARE_IGC_REGKEY(DWORD, CSSpillThresholdNoSLM, 5, "Spill Threshold for CS SIMD16 without SLM", false)
DECLARE_IGC_REGKEY(DWORD, AllowedSpillRegCount, 0, "Max allowed spill size without recompile", false)
DECLARE_IGC_REGKEY(DWORD, CSSpillThreshold2xGRFRetry, 3500, "Spill Threshold for CS to trigger 2xGRFRetry", false)
DECLARE_IGC_REGKEY(DWORD, LICMStatThreshold, 70, "LICM stat threshold to avoid retry SIMD16 for CS", false)
DECLARE_IGC_REGKEY(bool, EnableTypeDemotion, true, "Enable Type Demotion", false)
DECLARE_IGC_REGKEY(bool, EnablePreRARematFlag, true, "Enable PreRA Rematerialization of Flag", false)
DECLARE_IGC_REGKEY(bool, EnableGASResolver, true, "Enable GAS Resolver", false)
DECLARE_IGC_REGKEY(bool, EnableLowerGPCallArg, true, "Enable pass to lower generic pointers in function arguments", false)
DECLARE_IGC_REGKEY(bool, DisableRecompilation, false, "Disable recompilation, skip retry stage", true)
DECLARE_IGC_REGKEY(bool, SampleMultiversioning, false, "Create branches aroung samplers which can be redundant with some values", false)
DECLARE_IGC_REGKEY(bool, EnableSMRescheduling, false, "Change instruction order to enable extra Sample Multiversioning cases", false)
DECLARE_IGC_REGKEY(bool, DisableEarlyOutPatterns, false, "Disable optimization trying to create an early out after sampleC messages", false)
DECLARE_IGC_REGKEY_BITMASK(EarlyOutPatternSelectPS, 0xff, "Each bit selects a pattern match to enable/disable.", EARLY_OUT_PS_PATTERNS, false)
DECLARE_IGC_REGKEY_BITMASK(EarlyOutPatternSelectCS, 0xff, "Each bit selects a pattern match to enable/disable.", EARLY_OUT_CS_PATTERNS, false)
DECLARE_IGC_REGKEY(bool, OCLEnableReassociate, false, "Enable reassociation", true)
DECLARE_IGC_REGKEY(bool, EnableOCLScratchPrivateMemory, true, "Enable the use of scratch space for private memory [OCL only]", true)
DECLARE_IGC_REGKEY(bool, EnableMaxWGSizeCalculation, true, "Enable max work group size calculation [OCL only]", true)
DECLARE_IGC_REGKEY(bool, Enable64BitEmulation, false, "Enable 64-bit emulation", false)
DECLARE_IGC_REGKEY(bool, Enable64BitEmulationOnSelectedPlatform, true, "Enable 64-bit emulation on selected platforms", false)
DECLARE_IGC_REGKEY(DWORD, EnableConstIntDivReduction, 0x1, "Enables strength reduction on integer division/remainder with constant divisors/moduli", true)
DECLARE_IGC_REGKEY(DWORD, EnableIntDivRemCombine, 0x0, "Given div/rem pairs with same operands merged; replace rem with mul+sub on quotient; 0x3 (set bit[1]) forces this on constant power of two divisors as well", true)
DECLARE_IGC_REGKEY(bool, EnableHFpacking, false, "Enable HF packing", false)
DECLARE_IGC_REGKEY(bool, Force32BitIntDivRemEmu, false, "Force 32-bit Int Div/Rem emulation using fp64, ignored if no native fp64 support", true)
DECLARE_IGC_REGKEY(bool, Force32BitIntDivRemEmuSP, false, "Force 32-bit Int Div/Rem emulation using fp32, ignored if Force32BitIntDivRemEmu is set and actually used", true)
DECLARE_IGC_REGKEY(bool, EnableRecursionOpenCL, true, "Enable recursion with OpenCL user functions", false)
DECLARE_IGC_REGKEY(bool, ForceDPEmulation, false, "Force double emulation for testing purpose", false)
DECLARE_IGC_REGKEY(bool, EnableDPEmulation, false, "Enforce double precision floating point operations emulation on platforms that do not support it natively", true)
DECLARE_IGC_REGKEY(bool, DPEmuNeedI64Emu, true, "Double Emulation needs I64 emulation. Unsetting it to disable I64 Emulation for testing.", false)
DECLARE_IGC_REGKEY(bool, SelectiveLoopUnrollForDPEmu, true, "Setting this to 0/false disable selective loop unrolling for DP emu.", true)
DECLARE_IGC_REGKEY(bool, ForceSPDivEmulation, false, "Force SP Div emulation for testing purpose", false)
DECLARE_IGC_REGKEY(DWORD, ForceI64DivRemEmu, 0, "Forces specific int64 div/rem emulation: 0 = platform default, 1 = int based, 2 = SP based, 3 = DP based", false)
DECLARE_IGC_REGKEY(bool, EnableGen11TwoStackTSG, false, "Enable Two stack TSG gen11 feature", false)
DECLARE_IGC_REGKEY(bool, Enable16BitLDMCS, true, "Enable 16-bit ld_mcs on supported platforms", true)
DECLARE_IGC_REGKEY(bool, EnableDualSIMD8, true, "enable dual SIMD8 on supported platforms", true)
DECLARE_IGC_REGKEY(bool, ForceSampleDEmulation, false, "Enable emulation of sample_d on pre-XeHP platforms.", true)
DECLARE_IGC_REGKEY(bool, RemoveLegacyOCLStatelessPrivateMemoryCases, false, "Remove cases where OCL uses stateless private memory. XeHP and above only! [OCL only]", true)
DECLARE_IGC_REGKEY(DWORD, SkipPsSimdWithDualSimd, 1, "Setting it to values def in igc.h will force SIMD mode to skip if the dual-SIMD8 kernel exists", true)
DECLARE_IGC_REGKEY(bool, EnablePostCullPatchFIFOLP, true, "Enable Post-Cull Patch Decoupling FIFO. GEN12LP.", true)
DECLARE_IGC_REGKEY(bool, EnablePostCullPatchFIFOHP, true, "Enable Post-Cull Patch Decoupling FIFO. XeHP.", true)
DECLARE_IGC_REGKEY(bool, EnableAIParameterCombiningWithLODBias, true, "Enable AI parameter combining With LOD Bias parameter. XeHP", true)
DECLARE_IGC_REGKEY(DWORD, ForceMeshShaderSimdSize, 0, "Force mesh shader simd size,\
valid values are 0 (not set), 8, 16 and 32\
ignored if produces invalid cofiguration, e.g. simd size too small for workgroup size", true)
DECLARE_IGC_REGKEY(DWORD, ForceTaskShaderSimdSize, 0, "Force task shader simd size,\
valid values are 0 (not set), 8, 16 and 32\
ignored if produces invalid cofiguration, e.g. simd size too small for workgroup size", true)
DECLARE_IGC_REGKEY(DWORD, EnableMeshShaderSimdSize, 0, "Set allowed simd sizes for mesh shader compilation,\
bitmask bit0 - simd8, bit1 - simd16, bit2 - simd32,\
e.g. 0x7 enables all simd sizes and 0x2 enables only simd16,\
valid values are from 0 to 7\
ignored if produces invalid cofiguration, e.g. simd size too small for workgroup size,\
ignored if ForceMeshShaderSimdSize is set", true)
DECLARE_IGC_REGKEY(DWORD, EnableTaskShaderSimdSize, 0, "Set allowed simd sizes for task shader compilation,\
bitmask bit0 - simd8, bit1 - simd16, bit2 - simd32,\
e.g. 0x7 enables all simd sizes and 0x2 enables only simd16,\
valid values are from 0 to 7\
ignored if produces invalid cofiguration, e.g. simd size too small for workgroup size,\
ignored if ForceMeshShaderSimdSize is set", true)
DECLARE_IGC_REGKEY(DWORD, EnableMeshSLMCache, 0, "Enables caching Mesh shader outputs in SLM,\
bitmask:\
bit0 - cache AND flush mode, enable caching of Primitive Count and Primitive Indices, \
bit1 - cache AND flush mode, enable caching of per-vertex outputs,\
bit2 - cache AND flush mode, enable caching of per-primitive outputs,\
bit3 - mirror mode, if this bit is set bits 0, 1 and 2 are ignored, \
enable caching of outputs that are read in the shader\
data is only mirrored in SLM", true)
DECLARE_IGC_REGKEY(bool, DisableShrinkArrayAllocaPass, false, "Disables ShrinkArrayAllocaPass", true)
DECLARE_IGC_REGKEY(bool, EnableL3FlushForGlobal, false, "Enable/disable flushing L3 cache for globals", false)
DECLARE_IGC_REGKEY(bool, EnableCPSOmaskWA, true, "Enable workaround for oMask with CPS", false)
DECLARE_IGC_REGKEY(bool, EnableCPSMSAAOMaskWA, false, "Enable WA which forces rt writes to happen at pixel rate when cps, msaa, and omask are present.", true)
DECLARE_IGC_REGKEY(bool, EnableSampleBMLODWA, true, "Enable workaround for sample_b messages that use the mlod parameter", false)
DECLARE_IGC_REGKEY(bool, EnableFallbackToBindless, true, "This key enables fallback to bindless mode on all shaders", false)
DECLARE_IGC_REGKEY(bool, EnableFallbackToStateless, true, "This key enables fallback to stateless mode on all shaders", false)
DECLARE_IGC_REGKEY(bool, DisablePromoteToDirectAS, false, "This key disables the PromoteResourceToDirectAS pass", false)
DECLARE_IGC_REGKEY(bool, EnableAdvCodeMotion, true, "Enable advanced code motion", false)
DECLARE_IGC_REGKEY(bool, AdvCodeMotionControl, true, "Control bits to fine-tune advanced code motion", false)
DECLARE_IGC_REGKEY(bool, EnableAdvRuntimeUnroll, true, "Enable advanced runtime unroll", false)
DECLARE_IGC_REGKEY(DWORD, AdvRuntimeUnrollCount, 0, "Advanced runtime unroll count", false)
DECLARE_IGC_REGKEY(bool, EnableAdvMemOpt, true, "Enable advanced memory optimization", false)
DECLARE_IGC_REGKEY(bool, UniformMemOpt4OW, false, "increase uniform memory optimization from 2 owords to 4 owords", true)
DECLARE_IGC_REGKEY(bool, EnableFunctionPointer, true, "Enables support for function pointers and indirect calls", false)
DECLARE_IGC_REGKEY(bool, EnableIndirectCallOptimization, true, "Enables inlining indirect calls by comparing function addresses", false)
DECLARE_IGC_REGKEY(bool, EnableSIMDVariantCompilation, false, "Enables compiling kernels in variant SIMD sizes", false)
DECLARE_IGC_REGKEY(bool, ForceFFIDOverwrite, false, "Force overwriting ffid in sr0.0", false)
DECLARE_IGC_REGKEY(bool, EnableReadGTPinInput, true, "Enables setting GTPin context flags by reading the input to the compiler adapters", false)
DECLARE_IGC_REGKEY(bool, ForceStaticToDynamic, false, "Force write of vertex count in GS", false)
DECLARE_IGC_REGKEY(bool, DisableWaSampleLZ, false, "Disable The Sample Lz workaround and generate Sample LZ", false)
DECLARE_IGC_REGKEY(DWORD, OverrideRevIdForWA, 0xff, "Enable this to override the stepping/RevId, default is a0 = 0, b0 = 1, c0 = 2, so on...", false)
DECLARE_IGC_REGKEY(DWORD, OverrideDeviceIdForWA, 0, "Enable this to override DeviceId ", false)
DECLARE_IGC_REGKEY(DWORD, OverrideProductFamilyForWA, 0, "Enable this to override the product family, get the correct enum from igfxfmid.h", false)
DECLARE_IGC_REGKEY(bool, EnableImplicitArgAsIntrinsic, true, "Use GenISAIntrinsic instructions for supported implicit args instead of passing them as function arguments", true)
DECLARE_IGC_REGKEY(bool, EnableSamplerSupport, false, "Enables sampler messages generation for PVC.", true)
DECLARE_IGC_REGKEY(bool, EnableLSC, false, "Enables the new dataport encoding for LSC messages.", true)
DECLARE_IGC_REGKEY(bool, ForceNoLSC, false, "Disables the new dataport encoding for LSC messages.", true)
DECLARE_IGC_REGKEY(bool, EnableMadLoopSlice, true, "Enables the slicing of mad loops.", true)
DECLARE_IGC_REGKEY(bool, EnableGEPSimplification, true, "Enable GEP simplification", true)
DECLARE_IGC_REGKEY(bool, TestGEPSimplification, false, "[Test] Testing GEP simplification without actually lowering GEP. Used in lit test", false)
DECLARE_IGC_REGKEY(bool, DisableSystemMemoryCachingInGPUForConstantBuffers, false, "Disables caching system memory in GPU for loads from constant buffers", false)
DECLARE_IGC_REGKEY(bool, EnableInsertingPairedResourcePointer, true, "Enable to insert a bindless paired resource address into sampler headers in context of sampling feedback resources", true)
DECLARE_IGC_REGKEY(bool, EnablePromotionToSampleMlod, true,
"Enables promotion of sample and sample_c to sample_mlod and sample_c_mlod instructions when min lod is present", false)
DECLARE_IGC_REGKEY(bool, DisableCorrectlyRoundedMacros, false, "Tmp flag to disable correcly rounded macros for BMG+. This flag will be removed in the future.", false)
DECLARE_IGC_REGKEY(bool, EnableLscSamplerRouting, true, "Enables conversion of LD to LD_L instructions.", false)
DECLARE_IGC_REGKEY(bool, EnableSIMD16ForXe2, false, "Enable CS SIMD16 for Xe2", false)
DECLARE_IGC_REGKEY(bool, EnableSIMD16ForNonWaveXe2, true, "Enable CS SIMD16 for Xe2 if the shader doesn't have wave", false)
DECLARE_IGC_REGKEY(DWORD, CheckCSSLMLimit, 2, "Check SLM or threads limit on compute shader to turn on Enable2xGRF on DG2+"\
"0 - off, 1 - SLM limit heuristic, 2 - platform based heuristic (XE2 - threads limit, others - SLM limit)", false)
DECLARE_IGC_REGKEY(DWORD, Enable2xGRF, 2, "Enable 2x GRF for high SLM or high threads usage"\
"0 - off, 1 - on, 2 - platform default", false)
DECLARE_IGC_REGKEY(bool, EnableKernelCostInfo, false, "Enable collecting kernel cost info", true)
DECLARE_IGC_REGKEY(bool, EnableKernelCostDebug, false, "Enable kernel cost info debuging", false)
DECLARE_IGC_REGKEY(bool, EnableTileYForExperiments, false, "Enable TileY heuristics for experiments", false)
DECLARE_IGC_REGKEY(bool, EnableDG2LSCSIMD8WA, true, "Enables WA for DG2 LSC simd8 d32-v8/d64-v3/d64-v4. [temp, should be replaced with WA id", false)
DECLARE_IGC_REGKEY(bool, EnableScratchMessageD64WA, false, "Enables WA to legalize D64 scratch messages to D32", false)
DECLARE_IGC_REGKEY(DWORD, LscImmOffsMatch, 1, \
"Match address patterns that have an immediate offset for the vISA LSC API" \
"(0 means off/no matching," \
" 1 means on/match for supported platforms (Xe2+) and APIs," \
" 2 means force on for all platforms (vISA will emulate the addition if HW lacks support) and APIs," \
" 3 is the same as 2 and additionally skip the check if A32 offset is a positive value;" \
" also see LscImmOffsVisaOpts", true)
DECLARE_IGC_REGKEY(DWORD, LscImmOffsVisaOpts, 0x3003E, \
"This maps to vISA_lscEnableImmOffsFor" \
"(enables/disables immediate offsets for various address types; " \
"see that option for semantics)", true)
DECLARE_IGC_REGKEY(bool, DisableLSCForTypedUAV, false, "Forces legacy HDC messages for typed UAV read/write."\
"Temporary knob for XE2 bringup.", true)
DECLARE_IGC_REGKEY(bool, DisableLSCSIMD32TGMMessages, false, "Forces splitting SIMD32 typed messages into 2xSIMD16."\
"Only valid on XE2+.", true)
DECLARE_IGC_REGKEY(bool, Enable_Wa1807084924, false, "Enable Wa_1807084924 regardless of the platfrom stepping", true)
DECLARE_IGC_REGKEY(bool, Enable_Wa1507979211, false, "Enable Wa_1507979211 regardless of the platfrom stepping", true)
DECLARE_IGC_REGKEY(bool, Enable_Wa14010017096, false, "Enable Wa_14010017096 regardless of the platfrom stepping", true)
DECLARE_IGC_REGKEY(bool, Enable_Wa22010487853, false, "Enable Wa_22010487853 regardless of the platfrom stepping", true)
DECLARE_IGC_REGKEY(bool, Enable_Wa22010493955, false, "Enable Wa_22010493955 regardless of the platfrom stepping", true)
DECLARE_IGC_REGKEY(bool, EnablePartialEmuI64, true, "Enable the partial I64 emulation for PVC-B, Xe2", true)
DECLARE_IGC_REGKEY_ENUM(LscLoadCacheControlOverride, 0, "Overrides cache-control options for non-intrinsic LSC loads.", LSC_CACHE_CTRL_OPTIONS, true)
DECLARE_IGC_REGKEY_ENUM(LscStoreCacheControlOverride, 0, "Overrides cache-control options for non-intrinsic LSC stores.", LSC_CACHE_CTRL_OPTIONS, true)
DECLARE_IGC_REGKEY_ENUM(TgmLoadCacheControlOverride, 0, "Overrides cache-control options for non-intrinsic LSC tgm loads.", LSC_CACHE_CTRL_OPTIONS, true)
DECLARE_IGC_REGKEY_ENUM(TgmStoreCacheControlOverride, 0, "Overrides cache-control options for non-intrinsic LSC tgm stores.", LSC_CACHE_CTRL_OPTIONS, true)
DECLARE_IGC_REGKEY(bool, LscForceSpillNonStackcall, false, "Non-stack call kernels that spill will use LSC on DG2+", true)
DECLARE_IGC_REGKEY(bool, EnableGlobalStateBuffer, true, "This key allows stack calls to read implicit args from side buffer. It also emits a relocatable add in VISA.", true)
DECLARE_IGC_REGKEY(bool, LateInlineUnmaskedFunc, false, "Postpone inlining of Unmasked functions till end of CG to avoid code movement inside/outside of unmasked region", false)
DECLARE_IGC_REGKEY(bool, ForceFormatConversionDG2Plus, false,
"Forces SW image format conversion for R10G10B10A2_UNORM, R11G11B10_FLOAT, R10G10B10A2_UINT image formats on DG2+ platforms", true)
DECLARE_IGC_REGKEY(bool, EnableDivergentBarrierWA, false, "Generate continuation code to handle shaders that places barriers in divergent control flow", false)
DECLARE_IGC_REGKEY(bool, DivergentBarrierUniformLoad, false, "Optimize loads for spill/fill generated by DivergentBarrier with uniform analysis", true)
DECLARE_IGC_REGKEY(bool, ForcePrefetchToL1Cache, false, "Forces standard builtin prefetch to use L1 cache", true)
DECLARE_IGC_REGKEY(bool, DisablePrefetchToL1Cache, false, "Disable prefetch to L1 cache", true)
DECLARE_IGC_REGKEY(bool, ForceXYZworkGroupWalkOrder, true, "Force X/Y/Z WorkGroup walk order", true)
DECLARE_IGC_GROUP("Performance experiments")
DECLARE_IGC_REGKEY(bool, ForceNonCoherentStatelessBTI, false, "Enable gneeration of non cache coherent stateless messages", false)
DECLARE_IGC_REGKEY(bool, ForceSendsSupportOnSKLA0, false, "Allow sends on SKL A0, may be unsafe", false)
DECLARE_IGC_REGKEY(bool, DisableWaSendSEnableIndirectMsgDesc, false, "Disable a C0 WA WaSendSEnableIndirectMsgDesc, may be unsafe", false)
DECLARE_IGC_REGKEY(bool, DisableWaDisableSIMD16On3SrcInstr, false, "Disable C0 WA WaDisableSIMD16On3SrcInstr, may be unsafe", false)
DECLARE_IGC_REGKEY(bool, DiableWaSamplerNoMask, false, "Disable WA DiableWaSamplerNoMask", false)
DECLARE_IGC_REGKEY(bool, DisableDualBlendSource, false, "Force the compiler to never use dual blend source messages", false)
DECLARE_IGC_REGKEY(bool, ForceDisableSrc0Alpha, false, "Force the compiler to skip sending src0 alpha. Only works if we are sure alpha to coverage and alpha test is off", false)
DECLARE_IGC_REGKEY(bool, EnableLTO, true, "Enable link time optimization", false)
DECLARE_IGC_REGKEY(bool, EnableLTODebug, false, "Enable debug information for LTO", true)
DECLARE_IGC_REGKEY(DWORD, FunctionControl, 0, "Control function inlining/subroutine/stackcall. See value defs in igc_flags.hpp.", true)
DECLARE_IGC_REGKEY(DWORD, SelectiveFunctionControl, 0, "Selectively enables FunctionControl for a list of line-separated function names in " \
"file specified by SelectiveFunctionControlFile or 'FunctionDebug.txt' in the IGC output dir, in that order." \
"When set by this flag, the functions in the list will override the default FunctionControl mode." \
"0 - Disable, 1 - Enable and read from SelectiveFunctionControlFile, 2 - Print all callable functions to file" \
"See comments in ProcessFuncAttributes.cpp for how to use this flag.", true)
DECLARE_IGC_REGKEY(debugString, SelectiveFunctionControlFile, 0, "Set file with path that'll be used by SelectiveFunctionControl", true)
DECLARE_IGC_REGKEY(bool, EnableStackCallFuncCall, false, "If enabled, the default function call mode will be set to stack call. Otherwise, subroutine call is used.", false)
DECLARE_IGC_REGKEY(bool, EnableByValStructArgPromotion, true, "If enabled, byval/sret struct arguments are promoted to pass-by-value if possible.", true)
DECLARE_IGC_REGKEY(bool, ForceInlineStackCallWithImplArg, false, "If enabled, stack calls that uses implicit args will be force inlined.", true)
DECLARE_IGC_REGKEY(bool, EnableFunctionCloningControl, true, "If enabled, limits function cloning by converting stackcalls to indirect calls based on the FunctionCloningThreshold value.", true)
DECLARE_IGC_REGKEY(DWORD, FunctionCloningThreshold, 0,
"Limits the number of cloned functions when called from multiple function groups." \
"If number of cloned functions exceeds the threshold, compile the function only once and use address relocation instead." \
"Setting this to '0' allows IGC to choose the default threshold.", true)
DECLARE_IGC_REGKEY(bool, ForceLowestSIMDForStackCalls, true, "If enabled, compile to the lowest allowed SIMD mode when stack calls or indirect calls are present", true)
DECLARE_IGC_REGKEY(DWORD, OCLInlineThreshold, 512, "Setting OCL inline thershold", true)
DECLARE_IGC_REGKEY(bool, DisableAddingAlwaysAttribute, false, "Disable adding always attribute", true)
DECLARE_IGC_REGKEY(bool, EnableForceGroupSize, false, "Enable forcing thread Group Size ForceGroupSizeX and ForceGroupSizeY", false)
DECLARE_IGC_REGKEY(bool, EnableForceThreadCombining, false, "Enable forcing Thread Combining with thread Group Size ForceGroupSizeX and ForceGroupSizeY", false)
DECLARE_IGC_REGKEY(DWORD, ForceGroupSizeShaderHash, 0, "Shader hash for forcing thread group size or thread combining (lower 8 hex digits)", false)
DECLARE_IGC_REGKEY(DWORD, ForceGroupSizeX, 8, "force group size along X", false)
DECLARE_IGC_REGKEY(DWORD, ForceGroupSizeY, 8, "force group size along Y", false)
DECLARE_IGC_REGKEY(bool, EnableThreadCombiningWithNoSLM, false, "Enable thread combining opt for shader without SLM", false)
DECLARE_IGC_REGKEY(DWORD, PrintFunctionSizeAnalysis, 0, "Print analysis data of function sizes", true)
DECLARE_IGC_REGKEY(DWORD, SubroutineThreshold, 110000, "Minimal kernel size to enable subroutines", false)
DECLARE_IGC_REGKEY(DWORD, SubroutineInlinerThreshold, 3000, "Subroutine inliner threshold", false)
DECLARE_IGC_REGKEY(bool, ControlKernelTotalSize, true, "Control kernel total size", true)
DECLARE_IGC_REGKEY(bool, StaticProfileGuidedTrimming, false, "Enable static analysis in the kernel trimming", true)
DECLARE_IGC_REGKEY(debugString, SelectiveTrimming, 0, "Choose a specific function to trim", true)
DECLARE_IGC_REGKEY(bool, EnableGreedyTrimming, false, "Find the optimal set of functions to trim", true)
DECLARE_IGC_REGKEY(bool, EnableLeafCollapsing, false, "Collapse leaf functions in order to avoid trimming small leaf functions", true)
DECLARE_IGC_REGKEY(bool, UseFrequencyInfoForSPGT, true, "Consider frequency information for trimming functions", true)
DECLARE_IGC_REGKEY(bool, EnableSizeContributionOptimization, false, "Put more weight on a function when the potential size contirubion is big", true)
DECLARE_IGC_REGKEY(DWORD, SkipTrimmingOneCopyFunction, 3000, "Don't trim a function whose size contribution is no more than its size", true)
DECLARE_IGC_REGKEY(bool, LoopCountAwareTrimming, false, "Take loop count into account in measuring the function size for trimming", true)
DECLARE_IGC_REGKEY(DWORD, MaxUnrollCountForFunctionSizeAnalysis, 16, "The maximum number of loop unrolling assumed in function size analaysis", true)
DECLARE_IGC_REGKEY(bool, ControlInlineImplicitArgs, true, "Avoid trimming functions with implicit args", true)
DECLARE_IGC_REGKEY(DWORD, ControlInlineTinySize, 200, "Tiny function size for controlling kernel total size", true)
DECLARE_IGC_REGKEY(DWORD, ControlInlineTinySizeForSPGT, 300, "Tiny function size for controlling kernel total size", true)
DECLARE_IGC_REGKEY(DWORD, SizeWeightForSPGT, 3, "Size weight for a trimming threshold", true)
DECLARE_IGC_REGKEY(DWORD, FrequencyWeightForSPGT, 2, "Frequency weight for a trimming threshold", true)
DECLARE_IGC_REGKEY(DWORD, PrintControlKernelTotalSize, 0, "Print Control kernel total size", true)
DECLARE_IGC_REGKEY(bool, AddNoInlineToTrimmedFunctions, false, "Tell late passes not to inline trimmed functions", false)
DECLARE_IGC_REGKEY(bool, ForceInlineExternalFunctions, false, "not to trim functions called from multiple kernels", true)
DECLARE_IGC_REGKEY(DWORD, KernelTotalSizeThreshold, 50000, "Trimming target of kernel total size", true)
DECLARE_IGC_REGKEY(bool, PartitionUnit, false, "Partition compilation unit", true)
DECLARE_IGC_REGKEY(DWORD, PrintPartitionUnit, 0, "Print information about compilation unit partitioning", true)
DECLARE_IGC_REGKEY(bool, PartitionWithFastHybridRA, false, "Enable FastRA and HybridRA when partition is enabled", true)
DECLARE_IGC_REGKEY(DWORD, UnitSizeThreshold, 3000, "Compilation unit size threshold", true)
DECLARE_IGC_REGKEY(bool, StaticProfileGuidedPartitioning, 0, "Enable static analysis in the partitioning algorithm.", true)
DECLARE_IGC_REGKEY(DWORD, PrintStaticProfileGuidedKernelSizeReduction, 0, "Print information about static profile-guided trimming and partitioning", true)
DECLARE_IGC_REGKEY(DWORD, MetricForKernelSizeReduction, 2, "Set 1 to active a normal distribution, 2 a long-tail distribution, and 4 an average%", true)
DECLARE_IGC_REGKEY(bool, BlockFrequencySampling, true, "Use block frequencies to derive a distribution", true)
DECLARE_IGC_REGKEY(DWORD, ParameterForColdFuncThreshold, 80, "C/10-STD for a normal distribution / low K% for a long-tail distribution", true)
DECLARE_IGC_REGKEY(bool, ControlUnitSize, false, "Control compilation unit size by unit trimming", true)
DECLARE_IGC_REGKEY(DWORD, ExpandedUnitSizeThreshold, 50000, "Trimming target of compilation unit size", true)
DECLARE_IGC_REGKEY(DWORD, PrintControlUnitSize, 0, "Print information about unit trimming", true)
DECLARE_IGC_REGKEY(DWORD, StaticProfileGuidedSpillCostAnalysis, 8, "Use static profile information to estimate spill cost, " \
"1 for profile generation, 2 for profile transfer, 4 for profile embedding, " \
"8 for spill computation, and 16 for enabling frequency-based spill selection ", true)
DECLARE_IGC_REGKEY(DWORD, StaticProfileGuidedSpillCostAnalysisScale, 4, "Scale adjustment for static profile guided spill cost analysis", true)
DECLARE_IGC_REGKEY(DWORD, StaticProfileGuidedSpillCostAnalysisFunc, 1, "Spill cost function where 0 is based on a new spill cost and 1 the existing one", true)
DECLARE_IGC_REGKEY(DWORD, PrintStaticProfileGuidedSpillCostAnalysis, 0, "Print debug messages for profile embedding", true)
DECLARE_IGC_REGKEY(bool, EnableConstantPromotion, true, "Enable global constant data to register promotion", false)
DECLARE_IGC_REGKEY(bool, AllowNonLoopConstantPromotion, false, "Allows promotion for constants not in loop (e.g. used once)", false)
DECLARE_IGC_REGKEY(DWORD, ConstantPromotionSize, 2, "Threshold in number of GRFs", false)
DECLARE_IGC_REGKEY(DWORD, ConstantPromotionCmpSelSize, 4, "Array size threshold for cmp-sel transform", false)
DECLARE_IGC_REGKEY(bool, FuseResourceLoop, false, "Enable fusing resource loops", false)
DECLARE_IGC_REGKEY(bool, EnableVariableReuse, true, "Enable local variable reuse", false)
DECLARE_IGC_REGKEY(bool, EnableVariableAlias, true, "Enable variable aliases (part of VariableReuse Pass, but separate functionality)", false)
DECLARE_IGC_REGKEY(DWORD, VectorAlias, 1, "Vector aliasing control under EnableVariableAlias. Some features are still experimental", true)
DECLARE_IGC_REGKEY(DWORD, VectorAliasBBThreshold, 200, "Max number of BBs of a function that VectorAlias will apply. VectorAlias will skip for funtions beyond this threshold", true)
DECLARE_IGC_REGKEY(DWORD, ScalarAliasBBSizeThreshold, 500, "Max size of BB for which scalar aliasing will apply. Scalar aliasing will skip for BBs beyond this threshold", true)
DECLARE_IGC_REGKEY(bool, EnableExtractMask, false, "When enabled, it is mostly for reducing response size of send messages.", false)
DECLARE_IGC_REGKEY(DWORD, VariableReuseByteSize, 64, "The byte size threshold for variable reuse", false)
DECLARE_IGC_REGKEY(bool, EnableGather4cpoWA, true, "Enable WA transforming gather4cpo/gather4po into gather4c/gather4", false)
DECLARE_IGC_REGKEY(bool, EnableIntelFast, false, "Enable intel fast, experimental flag.", false)
DECLARE_IGC_REGKEY(bool, disableUnormTypedReadWA, false, "disable software conversion for UNORM surface in Dx10", false)
DECLARE_IGC_REGKEY(bool, forceGlobalRA, false, "force global register allocator", false)
DECLARE_IGC_REGKEY(bool, disableVarSplit, false, "disable variable splitting", false)
DECLARE_IGC_REGKEY(bool, disableRemat, false, "disable re-materialization", false)
DECLARE_IGC_REGKEY(bool, EnableDisableMidThreadPreemptionOpt, true, "Disable mid thread preemption", false)
DECLARE_IGC_REGKEY(DWORD, MidThreadPreemptionDisableThreshold, 600, "Threshold to disable mid thread preemption", false)
DECLARE_IGC_REGKEY(DWORD, DispatchGPGPUWalkerAlongYFirst, 1, "0 = No SW Y-walk, 1 = Dispatch GPGPU walker along Y first", false)
DECLARE_IGC_REGKEY(DWORD, DispatchAlongY_XY_ratio, 0, "min threshold for thread group size x / y for dispatchAlongY", false)
DECLARE_IGC_REGKEY(DWORD, DispatchAlongY_X_threshold, 0, "min threshold for thread group size x for dispatchAlongY", false)
DECLARE_IGC_REGKEY(bool, LimitConstantBuffersPushed, true, "Limit max number of CBs pushed when SupportIndirectConstantBuffer is true", false)
DECLARE_IGC_REGKEY(bool, forceSamplerHeader, false, "force sampler messages to use header", false)
DECLARE_IGC_REGKEY(bool, samplerHeaderWA, false, "enable sampler header to solve HW WA", false)
DECLARE_IGC_REGKEY(bool, VFPackingDisablePartialElements, false, "disable packing for partial vertex element as it causes performance drops", false)
DECLARE_IGC_REGKEY(bool, cl_khr_srgb_image_writes, false, "Enable cl_khr_srgb_image_writes extension", false)
DECLARE_IGC_REGKEY(bool, MSAA16BitPayloadEnable, true, "Enable support for MSAA 16 bit payload , a hardware DCN supporting this from ICL+ to improve perf on MSAA workloads", false)
DECLARE_IGC_REGKEY(bool, EnableInsertElementScalarCoalescing, false, "Enable coalescing on the scalar operand of insertelement", false)
DECLARE_IGC_REGKEY(bool, EnableMixIntOperands, true, "Enable generating mix-sized operands for int ALU", false)
DECLARE_IGC_REGKEY(bool, PixelShaderDoNotAbortOnSpill, false, "Do not abort on a spill", false)
DECLARE_IGC_REGKEY(DWORD, ForceScratchSpaceSize, 0, "Override Scratch Space Size in bytes for perf testing", false)
DECLARE_IGC_REGKEY(DWORD, SkipPaddingScratchSpaceSize, 4096, "Skip adding padding when estimated scratch space size is smaller than or equal to this value", false)
DECLARE_IGC_REGKEY(DWORD, ForcePixelShaderSIMDMode, 0, "Setting it to values def in igc.h will force SIMD mode compilation for pixel shaders. Note that only SIMD8 is compiled unless other ForcePixelShaderSIMD* are also selected. 1-SIMD8, 2-SIMD16,4-SIMD32", false)
DECLARE_IGC_REGKEY(DWORD, StagedCompilationExperiments, 0, "Experiment with staged compilation when != 0", false)
DECLARE_IGC_REGKEY(bool, RequestStage2, true, "Enable staged compilation via requesting stage 2", false)
DECLARE_IGC_REGKEY(bool, LTOForStage1Compilation, true, "LTO for stage 1 compilation", false)
DECLARE_IGC_REGKEY(bool, PSOForStage1Compilation, true, "PSO for stage 1 compilation", false)
DECLARE_IGC_REGKEY(bool, EnableTrackPtr, false, "Track Staging Context alloc/dealloc", false)
DECLARE_IGC_REGKEY(bool, ExtraRetrySIMD16, false, "Enable extra simd16 with retry for STAGE1_BEST_PREF", false)
DECLARE_IGC_REGKEY(bool, SaveRestoreIR, true, "Save/Restore IR for staged compilation to avoid duplicated compilations", false)
DECLARE_IGC_REGKEY(DWORD, SSOShifter, 9, "Adjust ScratchSurfaceOffset with shl(hwtid, shifter). 0 menas disabling padding", false)
DECLARE_IGC_REGKEY(DWORD, DelayEmuInt64AddLimit, 0, "Delay emulating Int64 Add operations in vISA", false)
DECLARE_IGC_REGKEY(DWORD, CodePatch, 2, "Enable Pixel Shader code patching to directly emit code after stitching", false)
DECLARE_IGC_REGKEY(DWORD, CodePatchLimit, 0, "Debug CodePatch via limiting the number of shader been patched", false)
DECLARE_IGC_REGKEY(DWORD, CodePatchExperiments, 0, "Experiment with code patching when != 0", false)
DECLARE_IGC_REGKEY(DWORD, CodePatchFilter, 0x7, "Filter out unsupported patterns", false)
DECLARE_IGC_REGKEY(DWORD, FirstStagedSIMD, 0, "Force Pixel shader to be 1: FastSIMD (SIMD8), 2: BestSIMD (SIMD16 or SIMD8), 3: FatestSIMD (SIMD8 opt off)", false)
DECLARE_IGC_REGKEY(DWORD, FastestS1Experiments, 0, "Select configs for fastest compilation by bits.", false)
DECLARE_IGC_REGKEY(bool, ForceAddingStackcallKernelPrerequisites, false, "Force adding static overhead for stackcall to the kernel entry such as HWTID instructions for experiments", true)
DECLARE_IGC_REGKEY(bool, DisableFastestLinearScan, false, "Disable LinearScanRA in FastestSIMD.", false)
DECLARE_IGC_REGKEY(bool, DisableFastestGopt, false, "Disable global optimizations for stage 1 shaders.", false)
DECLARE_IGC_REGKEY(bool, ForceFastestSIMD, false, "Force PS, CS, VS to return lowest possible SIMD as fast as possible.", false)
DECLARE_IGC_REGKEY(bool, EnableFastestSingleCSSIMD, true, "Enable selecting single CS SIMD in staged compilation.", false)
DECLARE_IGC_REGKEY(bool, ForceFastestSingleCSSIMD, false, "Force selecting single CS SIMD in staged compilation on unsupported platforms.", false)
DECLARE_IGC_REGKEY(bool, ForceBestSIMD, false, "Force pixel shader to return the best SIMD, either SIMD16 or SIMD8.", false)
DECLARE_IGC_REGKEY(bool, SkipTREarlyExitCheck, false, "Skip SIMD16 early exit check in ShaderCodeGen", false)
DECLARE_IGC_REGKEY(bool, EnableTCSHWBarriers, false, "Enable TCS pass with HW barriers support. Default TCS pass is TCS pass with multiple continuation functions.", false)
DECLARE_IGC_REGKEY(bool, ForceMCFBarriers, false, "Force TCS pass with MCF (SW) barriers support. Default TCS pass is TCS pass with multiple continuation functions.", false)
DECLARE_IGC_REGKEY(bool, EnableAccSub, true, "Enable accumulator substitution", false)
DECLARE_IGC_REGKEY(bool, EnablePreRAAccSchedAndSub, false, "Enable accumulator substitution", false)
DECLARE_IGC_REGKEY(DWORD, NumGeneralAcc, 0, "set the number [1-8] of general acc for accumulator substitution. 0 means using the platform-default value", false)
DECLARE_IGC_REGKEY(bool, HasDoubleAcc, false, "has doubled accumulators", false)
DECLARE_IGC_REGKEY(bool, ForceSWCoalescingOfAtomicCounter, false, "Force software coalescing of atomic counter", false)
DECLARE_IGC_REGKEY(bool, ForceMixMode, false, "force enable mix mode even on platforms that do not support it", false)
DECLARE_IGC_REGKEY(bool, DisableFDIV, false, "Disable fdiv support", false)
DECLARE_IGC_REGKEY(bool, EmulateFDIV, false, "Emulate fdiv instructions", false)
DECLARE_IGC_REGKEY(bool, UpConvertF16Sampler, true, "up-convert fp16 sampler message to return fp32", false)
DECLARE_IGC_REGKEY(bool, DownConvertI32Sampler, false,
"Convert i32 sampler messages to return i16.\
This optimization can only be enabled for resources with 16bit integer format\
or if it is known that the upper 16bits of data is always 0.", false)
DECLARE_IGC_REGKEY(bool, FuseTypedWrite, false, "Enable fusing of simd8 typed write", false)
DECLARE_IGC_REGKEY(bool, DisableUndefAlphaOutputAsRed, false, "Disable output red for undefined alpha output", false)
DECLARE_IGC_REGKEY(bool, EnableHalfPromotion, true, "Enable pass that replaces instructions using halfs with corresponding float counterparts for pre-SKL", false)
DECLARE_IGC_REGKEY(bool, ForceHalfPromotion, false, "Force enable pass that replaces instructions using halfs with corresponding float counterparts", false)
DECLARE_IGC_REGKEY(bool, ForceNoInfiniteLoops, false, "Limit # of loop iterations to UINT_MAX in while/for loops. Can be used to detect infinite loops in shaders", false)
DECLARE_IGC_REGKEY(bool, DisbleLocalFences, false, "On CNL+ we need to emit local fences. Setting this to true removes those. It may be functionaly not correct.", false)
DECLARE_IGC_REGKEY(bool, FastSpill, false, "fast spill code gen. This may produce worse equality code for the spilling shader", false)
DECLARE_IGC_REGKEY(bool, EnableGSURBEntryPadding, true, "Enable padding of GS URB Entry by adding extra portions of Control Data Header.", false)
DECLARE_IGC_REGKEY(bool, EnableGSVtxCountMsgHalfCLSize, true, "Enable the Vertex Count msg of half CL size, instead of 1DW size.", false)
DECLARE_IGC_REGKEY(bool, EnableTEFactorsPadding, true, "Enable padding of the TE factors.", false)
DECLARE_IGC_REGKEY(bool, EnableTEFactorsClear, true, "Enable clearing of tessellation factors.", false)
DECLARE_IGC_REGKEY(DWORD, EmulationFunctionControl, 0, "FunctionControl on some DP emulation functions. It has the same value as FunctionControl.", true)
DECLARE_IGC_REGKEY(DWORD, InlinedEmulationThreshold, 125000, "Inlined instruction threshold for enabling subroutines", false)
DECLARE_IGC_REGKEY(int, ByPassAllocaSizeHeuristic, 0, "Force some Alloca to pass the pressure heuristic until the given size", true)
DECLARE_IGC_REGKEY(DWORD, MemOptWindowSize, 150, "Size of the window in unit of instructions in which load/stores are allowed to be coalesced. Keep it limited in order to avoid creating long liveranges. Default value is 150", false)
DECLARE_IGC_REGKEY(DWORD, RematFlowThreshold, 10, "Proportion of the whole rematerialization targets to cutoff remat chain", false)
DECLARE_IGC_REGKEY(DWORD, RematChainLimit, 12, "If number of instructions we've collected is more than this value, we bail on it", false)
DECLARE_IGC_REGKEY(DWORD, RematRPELimit, 120, "Cutoff value for register estimator, lower than that, kernel won't be rematted", false)
DECLARE_IGC_REGKEY(bool, RematEnable, false, "Enable clone adress arithmetic pass not only on retry", false)
DECLARE_IGC_REGKEY(bool, RematLog, false, "Dump Remat Log, usefull for analyzing spills as well", false)
DECLARE_IGC_REGKEY(bool, RematSameBBScope, false, "Confine rematerialization only to variables within the same BB, we won't pull down values from predeccors", false)
DECLARE_IGC_REGKEY(bool, RematRespectUniformity, false, "Cutoff computation chain on uniform values", false)
DECLARE_IGC_REGKEY(bool, RematAllowExtractElement, false, "Allow Extract Element to computation chain", false)
DECLARE_IGC_REGKEY(bool, RematReassocBefore, false, "Enable short sequence of passes before clone address arithmetic pass to potentially decrese amount of operations that will be rematerialized", false)
DECLARE_IGC_REGKEY(bool, RematInstCombineBefore, false, "Enable short sequence of passes before clone address arithmetic pass to potentially decrese amount of operations that will be rematerialized", false)
DECLARE_IGC_REGKEY(bool, RematAddrSpaceCastToUse, true, "Allow rematerialization of inttoptr that are used inside AddrSpaceCastInst", false)
DECLARE_IGC_REGKEY(bool, RematCallsOperand, false, "Allow rematerialization of inttoptr that are used as call's operand", false)
DECLARE_IGC_REGKEY(bool, RematAllowOneUseLoad, false, "Remat allow to move loads that have one use and it's inside the chain", false)
DECLARE_IGC_REGKEY(bool, RematAllowLoads, false, "Remat allow to move loads, no checks, exclusively for testing purposes", false)
DECLARE_IGC_REGKEY(bool, DumpRegPressureEstimate, false, "Dump RegPressureEstimate to a file", false)
DECLARE_IGC_REGKEY(debugString, DumpRegPressureEstimateFilter, 0, "Only dump RegPressureEstimate for functions matching the given regex", false)
DECLARE_IGC_REGKEY(bool, VectorizerLog, false, "Dump Vectorizer Log, usefull for analyzing vectorization issues", false)
DECLARE_IGC_REGKEY(bool, EnableReusingXYZWStoreConstPayload, true, "Enable reusing XYZW stores const payload", false)
DECLARE_IGC_REGKEY(bool, EnableReusingLSCStoreConstPayload, false, "Enable reusing LSC stores const payload", false)
DECLARE_IGC_REGKEY(DWORD, RegPressureVerbocity, 0, "Different printing types", false)
DECLARE_IGC_REGKEY(DWORD, RetryRevertExcessiveSpillingKernelThreshold, 10000, "Sets the threshold for Retry Manager to know which kernel is considered as Excessive Spilling and applies different set of rules", false)
DECLARE_IGC_REGKEY(DWORD, RetryRevertExcessiveSpillingKernelCoefficient, 102, "Sets the coefficient for Retry Manager to know whether we should revert back to a previously compiled kernel", false)
DECLARE_IGC_REGKEY(DWORD, ForceSIMDRPELimit, 1000, "Cutoff value for register estimator, when higher than that kernel is switched to lower SIMD when possible", false)
DECLARE_IGC_REGKEY(DWORD, EarlyRetryRPEThreshold, 500, "Cutoff value for register estimation, when highter than that kernel skips first compilation stage and goes to retry immediately", false)
DECLARE_IGC_REGKEY(bool, ForceNoFP64bRegioning, false, "force regioning rules for FP and 64b FPU instructions", false)
DECLARE_IGC_REGKEY(bool, EnableA64WA, true, "Guarantee A64 load/store addres-hi is uniform", true)
DECLARE_IGC_REGKEY(bool, EnableSamplerSplit, false, "Split Sampler 3d message to odd and even", false)
DECLARE_IGC_REGKEY(bool, EnableEvaluateSamplerSplit, true, "Split evaluate messages to sampler into either SIMD8 or SIMD1 messages", false)
DECLARE_IGC_REGKEY(DWORD, AllocaRAPressureThreshold, 500, "The threshold for the register pressure potential", false)
DECLARE_IGC_REGKEY(DWORD, HPCInstNumThreshold, 1000000, "The threshold for the register pressure potential", false)
DECLARE_IGC_REGKEY(DWORD, HPCGlobalInstNumThreshold, 500000, "The threshold for the register pressure potential", false)
DECLARE_IGC_REGKEY(bool, HPCFastCompilation, false, "Force to do fast compilation for HPC kernel", false)
DECLARE_IGC_REGKEY(bool, UseOldSubRoutineAugIntf, false, "Use the old subroutine augmentation code which is slower", false)
DECLARE_IGC_REGKEY(bool, DisableFastRAWA, true, "Disable Fast RA for hanging issues on large workloads", false)
DECLARE_IGC_REGKEY(bool, FastCompileRA, false, "Provide the fast compilatoin path for RA, fail safe at first iteration", false)
DECLARE_IGC_REGKEY(bool, HybridRAWithSpill, false, "Did Hybrid RA with Spill", false)
DECLARE_IGC_REGKEY(bool, SelectiveFastRA, false, "Apply fast RA with spills selectively using heuristics", true)
DECLARE_IGC_REGKEY(DWORD, AllowStackCallRetry, 2, "Enable/Disable retry when stack function spill. 0 - Don't allow, 1 - Allow retry on kernel group, 2 - Allow retry per function", false)
DECLARE_IGC_REGKEY(bool, PrintStackCallDebugInfo, false, "Print all debug info to command line related to stack call debugging", true)
DECLARE_IGC_REGKEY(DWORD, StripDebugInfo, 0,
"Strip debug info from llvm IR lowered from input to IGC ."\
"Possible values: 0 - dont strip, 1 - strip all, 2 - strip non-line info",
false)
DECLARE_IGC_REGKEY(bool, EmitPreDefinedForAllFunctions, false, "When enabled, pre-defined variables for gid, grid, lid are emitted for all functions. This causes those functions to be inlined even when stack calls is enabled.", true)
DECLARE_IGC_REGKEY(bool, EnableGPUFenceScopeOnSingleTileGPUs, false, "Allow the use of `GPU` fence scope on single-tile GPUs. By default the `TILE` scope is used instead of `GPU` scope on single-tile GPUs.", true)
DECLARE_IGC_REGKEY(bool, EnableLocalIdCalculationInShader, false,
"Enables calcualtion of local thread IDs in shader. Valid only in compute"\
"shaders on XeHP+. IDs are calculated only if HW generated IDs cannot be"\
"used.", true)
DECLARE_IGC_REGKEY(int, JointMatrixLoadStoreOpt, 3, "Selects subgroup (0), or block read/write (1), or optimized block read/write (2), 2d block read/write (3) implementation of Joint Matrix Load/Store built-ins", true)
DECLARE_IGC_REGKEY(bool, EnableVector8LoadStore, false, "Enable Vectorizer to generate 8x32i and 4x64i loads and stores", true)
DECLARE_IGC_REGKEY(bool, EnableOpaquePointersBackend, false, "[Experimental] Force opaque pointers' usage within IGC/LLVM passes", false)
DECLARE_IGC_REGKEY(bool, ExcludeIRFromZEBinary, false, "Exclude IR sections from ZE binary", true)
DECLARE_IGC_REGKEY(bool, AllocateZeroInitializedVarsInBss, true, "Allocate zero initialized global variables in .bss section in ZEBinary", true)
DECLARE_IGC_REGKEY(DWORD, OverrideOCLMaxParamSize, 0, "Override the value imposed on the kernel by CL_DEVICE_MAX_PARAMETER_SIZE. Value in bytes, if value==0 no override happens.", true)
DECLARE_IGC_REGKEY(bool, EnableOptReportPrivateMemoryToSLM, false, "[POC] Generate opt report file for moving private memory allocations to SLM.", false)
DECLARE_IGC_REGKEY(bool, ForceAllPrivateMemoryToSLM, false, "[POC] Force moving all private memory allocations to SLM.", false)
DECLARE_IGC_REGKEY(debugString, ForcePrivateMemoryToSLMOnBuffers, 0, "[POC] Force moving private memory allocations to SLM, semicolon-separated list of buffers.", false)
DECLARE_IGC_REGKEY(bool, ForcePrivateMemoryToGlobalOnGeneric, true, "Force moving private memory allocations to global buffer when generic pointer is present", true)
DECLARE_IGC_REGKEY(bool, DetectCastToGAS, true, "Check if the module contains local/private to GAS (Gerneric Address Space) cast, it also check internal flags", true)
DECLARE_IGC_REGKEY(bool, EnableProgrammableOffsetsMessageBitInHeader, false, "Use pre-delta feature (legacy) method of passing MSB of PO messages opcode. ", false)
DECLARE_IGC_REGKEY(bool, OverrideCsWalkOrderEnable, false, "Enable overriding compute walker walk order", true)
DECLARE_IGC_REGKEY(int, OverrideCsWalkOrder, 0, "Override compute walker walk order", true)
DECLARE_IGC_REGKEY(bool, OverrideCsTileLayoutEnable, false, "Enable overriding compute walker tile layout", true)
DECLARE_IGC_REGKEY(bool, OverrideCsTileLayout, 0, "Override compute walker tile layout. False is linear. True is TileY", true)
DECLARE_IGC_REGKEY(DWORD, MemCpyLoweringUnrollThreshold, 12, "Min number of mem instructions that require non-unrolled loop when lowering memcpy", false)
DECLARE_IGC_REGKEY(DWORD, EnablePrivMemNewSOATranspose, 1, "0 : disable new algo; 1 and up : enable new algo. " \
"1 : enable new algo just for array of struct; " \
"2 : 1 plus new algo for array of dw[xn]/qw[xn],etc " \
"3 : 2 plus new algo for array of complicated struct.", true)
DECLARE_IGC_REGKEY(bool, NewSOATransposeForOpenCL, true, "If true, EnablePrivMemNewSOATranspose only applies to OpenCL kernels. For testing purpose", true)
DECLARE_IGC_REGKEY(bool, EnableSOAPromotionDisablingHeuristic, false, "Enable heuristic to disable SOA promotion when it may be not beneficial", false)
DECLARE_IGC_REGKEY(bool, DisableCSContentCheck, false, "Disable CS content check that can force SIMD32", true)
DECLARE_IGC_REGKEY(bool, DisableFastMathConstantHandling, false, "Disable Fast Math Constant Handling", true)
DECLARE_IGC_GROUP("Generating precompiled headers")
DECLARE_IGC_REGKEY(bool, ApplyConservativeRastWAHeader, true, "Apply WaConservativeRasterization for the platforms enabled", false)
DECLARE_IGC_GROUP("Raytracing Options")
DECLARE_IGC_REGKEY(bool, DisableEntryFences, false, "Don't emit the evict and invalidate fences for A0 WA", false)
DECLARE_IGC_REGKEY(bool, EnableRayTracingTGMFence, false, "Enable tgm fence in RT workloads for debugging", false)
DECLARE_IGC_REGKEY(bool, RayTracingDumpYaml, false, "Dump yaml input/output files", true)
DECLARE_IGC_REGKEY(bool, EnableCompressedRayIndices, false, "Use an alternate form with bit twiddling to pack stack pointer and indices into two DWORDs", true)
DECLARE_IGC_REGKEY(bool, ForceNullBVH, false, "Swap BVH with null pointer. Infinitely fast ray traversal.", true)
DECLARE_IGC_REGKEY(bool, DisableFuseContinuations, false, "If set, we will look for small duplicated continuations to merge into one.", true)
DECLARE_IGC_REGKEY(bool, DisableMatchRegisterRegion, false, "Disable matching for debug purposes", true)
DECLARE_IGC_REGKEY(bool, DisableCanonizationWA, false, "WA for A0 to inject shifts to canonize global and local pointers", true)
DECLARE_IGC_REGKEY(bool, DisableEarlyRemat, false, "Disable quick remats to avoid some spills", true)
DECLARE_IGC_REGKEY(bool, DisableLateRemat, false, "Disable quick remats to avoid some spills", true)
DECLARE_IGC_REGKEY(DWORD, RematThreshold, 6, "Tunes how aggresively we should remat values into continuations", true)
DECLARE_IGC_REGKEY(bool, DisableCompactifySpills, false, "Just emit spill/fill at the point of def/use", true)
DECLARE_IGC_REGKEY(bool, EnableHoistRemat, false, "Hoist rematerialized instructions to shader entry. Longer live ranges but common values fused.", true)
DECLARE_IGC_REGKEY(bool, DisableRTGlobalsKnownValues, false, "load MaxBVHLevels from RTGlobals rather than assumming = 2", true)
DECLARE_IGC_REGKEY(bool, DisableRaytracingIntrinsicAttributes, false, "Turn off noalias and dereferenceable attributes", true)
DECLARE_IGC_REGKEY(bool, DisablePayloadSinking, false, "sink stores to payload into inlined continuations", true)
DECLARE_IGC_REGKEY(DWORD, ContinuationInlineThreshold, 1, "If number of continuations is greater than threshold, default to indirect", true)
DECLARE_IGC_REGKEY(bool, EnableInlinedContinuations, false, "Forcibly inline all continuations", true)
DECLARE_IGC_REGKEY(bool, EnableIndirectContinuations, false, "Enable BTD for continuation shaders (regardless of inline threshold).", true)
DECLARE_IGC_REGKEY(bool, ForceWholeProgramCompile, false, "Compile as if we know all of the shaders upfront", true)
DECLARE_IGC_REGKEY(bool, DeferCollectionStateObjectCompilation, false, "Wait to compile till the RTPSO stage", true)
DECLARE_IGC_REGKEY(bool, ForceFirstFencesEvict, false, "Force evict fence op on fences prior to the stack ID release", true)
DECLARE_IGC_REGKEY(bool, RayTracingKeepUDivRemWA, false, "Workaround till jitIsa supports cr0 for rtz conversions", true)
DECLARE_IGC_REGKEY(bool, DisablePromoteToScratch, false, "Use scratch space rather than SWStack when possible.", true)
DECLARE_IGC_REGKEY(bool, DisableInvariantLoad, false, "Disabled !invariant_load metadata for raytracing shaders", true)
DECLARE_IGC_REGKEY(bool, DisablePreSplitOpts, false, "Disable last minute optimizations befoer shader splitting", true)
DECLARE_IGC_REGKEY(bool, EnableKnownBTIBase, false, "For testing, assume that we know what baseBTI is in RTGlobals", true)
DECLARE_IGC_REGKEY(DWORD, KnownBTIBaseValue, 0, "If EnableKnownBTIBase is set, use this value for baseBTI", true)
DECLARE_IGC_REGKEY(bool, DisableStatefulRTStackAccess, false, "do stateless rather than stateful accesses to the HW portion of the async stack", true)
DECLARE_IGC_REGKEY(bool, DisableStatefulRTSyncStackAccess, true, "do stateless rather than stateful accesses to the HW portion of the sync stack", true)
DECLARE_IGC_REGKEY(bool, DisableStatefulSWHotZoneAccess, false, "do stateless rather than stateful accesses to the SW HotZone", true)
DECLARE_IGC_REGKEY(bool, DisableStatefulSWStackAccess, false, "do stateless rather than stateful accesses to the SW Stack", true)
DECLARE_IGC_REGKEY(bool, DisableStatefulRTSyncStackAccess4RTShader, true, "do stateless rather than stateful accesses to the HW portion of the sync stack. RT Shader only.", true)
DECLARE_IGC_REGKEY(bool, DisableStatefulRTSyncStackAccess4nonRTShader, true, "do stateless rather than stateful accesses to the HW portion of the sync stack. nonRT Shader only.", true)
DECLARE_IGC_REGKEY(bool, DisableRTBindlessAccess, false, "do bindful rather than bindless accesses to raytracing memory", true)
DECLARE_IGC_REGKEY(bool, DisableRTStackOpts, false, "Disable some optimizations that minimize reads/writes to the RTStack", true)
DECLARE_IGC_REGKEY(bool, DisablePrepareLoadsStores, false, "Disable preparation for MemOpt", true)
DECLARE_IGC_REGKEY(bool, DisableRayTracingConstantCoalescing, false, "Disable coalescing", true)
DECLARE_IGC_REGKEY(DWORD, RayTracingConstantCoalescingMinBlockSize, 4, "Set the minimum load size in # OWords = [1,2,4,8,16].", true)
DECLARE_IGC_REGKEY(bool, DisableRayTracingOptimizations, false, "Disable RayTracing Optimizations for debugging", true)
DECLARE_IGC_REGKEY(DWORD, RayTracingCustomTileXDim1D, 0, "X dimension of tile (default: DG2=256, Xe2+=512)", true)
DECLARE_IGC_REGKEY(DWORD, RayTracingCustomTileYDim1D, 0, "Y dimension of tile (default: 1)", true)
DECLARE_IGC_REGKEY(DWORD, RayTracingCustomTileXDim2D, 0, "X dimension of tile (default: 32)", true)
DECLARE_IGC_REGKEY(DWORD, RayTracingCustomTileYDim2D, 0, "Y dimension of tile (default: 4 for XE, 32 for XE2+)", true)
DECLARE_IGC_REGKEY(bool, DisableLSCControlsForRayTracing, false, "Disable different LSC Controls for HW and SW portions of the RTStack", true)
DECLARE_IGC_REGKEY(bool, ForceRTStackLoadCacheCtrl, false, "Enables RTStackLoadCacheCtrl regkey for custom lsc load cache controls in the RTStack", true)
DECLARE_IGC_REGKEY_ENUM(RTStackLoadCacheCtrl, 0, "Load Cache Controls", LSC_CACHE_CTRL_OPTIONS, true)
DECLARE_IGC_REGKEY(bool, ForceRTStackStoreCacheCtrl, false, "Enables RTStackStoreCacheCtrl regkey for custom lsc store cache controls in the RTStack", true)
DECLARE_IGC_REGKEY_ENUM(RTStackStoreCacheCtrl, 0, "Store Cache Controls", LSC_CACHE_CTRL_OPTIONS, true)
DECLARE_IGC_REGKEY(bool, ForceSWStackLoadCacheCtrl, false, "Enables SWStackLoadCacheCtrl regkey for custom lsc load cache controls in the SWStack", true)
DECLARE_IGC_REGKEY_ENUM(SWStackLoadCacheCtrl, 0, "Load Cache Controls", LSC_CACHE_CTRL_OPTIONS, true)
DECLARE_IGC_REGKEY(bool, ForceSWStackStoreCacheCtrl, false, "Enables SWStackStoreCacheCtrl regkey for custom lsc store cache controls in the SWStack", true)
DECLARE_IGC_REGKEY_ENUM(SWStackStoreCacheCtrl, 0, "Store Cache Controls", LSC_CACHE_CTRL_OPTIONS, true)
DECLARE_IGC_REGKEY(bool, ForceSWHotZoneLoadCacheCtrl, false, "Enables SWHotZoneLoadCacheCtrl regkey for custom lsc load cache controls in the SWHotZone", true)
DECLARE_IGC_REGKEY_ENUM(SWHotZoneLoadCacheCtrl, 0, "Load Cache Controls", LSC_CACHE_CTRL_OPTIONS, true)
DECLARE_IGC_REGKEY(bool, ForceSWHotZoneStoreCacheCtrl, false, "Enables SWHotZoneStoreCacheCtrl regkey for custom lsc store cache controls in the SWHotZone", true)
DECLARE_IGC_REGKEY_ENUM(SWHotZoneStoreCacheCtrl, 0, "Store Cache Controls", LSC_CACHE_CTRL_OPTIONS, true)
DECLARE_IGC_REGKEY(bool, ForceGenMemLoadCacheCtrl, false, "Enables GenMemLoadCacheCtrl regkey for custom lsc load cache controls in other memory", true)
DECLARE_IGC_REGKEY_ENUM(GenMemLoadCacheCtrl, 0, "Load Cache Controls", LSC_CACHE_CTRL_OPTIONS, true)
DECLARE_IGC_REGKEY(bool, ForceGenMemStoreCacheCtrl, false, "Enables GenMemStoreCacheCtrl regkey for custom lsc store cache controls in other memory", true)
DECLARE_IGC_REGKEY_ENUM(GenMemStoreCacheCtrl, 0, "Store Cache Controls", LSC_CACHE_CTRL_OPTIONS, true)
DECLARE_IGC_REGKEY(bool, ForceRTConstantBufferCacheCtrl, false, "Enables RTConstantBufferCacheCtrl regkey for custom lsc load cache controls for constant buffers", true)
DECLARE_IGC_REGKEY_ENUM(RTConstantBufferCacheCtrl, 0, "Constant Buffer Load Cache Controls for raytracing shaders", LSC_CACHE_CTRL_OPTIONS, true)
DECLARE_IGC_REGKEY(bool, ForceGenMemDefaultCacheCtrl, false, "If enabled, no message specific cache ctrls are set on memory outside of RTStack, SWStack, and SWHotZone", true)
DECLARE_IGC_REGKEY(bool, EnableRTPrintf, false, "Enable printf for ray tracing.", true)
DECLARE_IGC_REGKEY(DWORD, PrintfBufferSize, 0, "Set printf buffer size. Unit: KB.", true)
DECLARE_IGC_REGKEY(bool, DisableRayQueryDynamicRayManagementMechanism, false, "Dynamic ray management mechanism for Synchronous Ray Tracing", true)
DECLARE_IGC_REGKEY(bool, DisableRayQueryDynamicRayManagementMechanismForExternalFunctionsCalls, false, "Disable dynamic ray management mechanism for shaders with external functions calls", true)
DECLARE_IGC_REGKEY(bool, DisableRayQueryDynamicRayManagementMechanismForBarriers, false, "Disable dynamic ray management mechanism for shaders with barriers", true)
DECLARE_IGC_REGKEY(bool, EnableOuterLoopHoistingForRayQueryDynamicRayManagementMechanism, false, "Disable dynamic ray management mechanism for shaders with barriers", true)
DECLARE_IGC_REGKEY(bool, DisableProceedBasedApproachForRayQueryDynamicRayManagementMechanism, false, "Disables proceed based approach for dynamic ray management mechanism", true)
DECLARE_IGC_REGKEY(bool, DisableInvalidateRTStackAfterLastRead, true, "Disables L1 cache invalidation after the last read of the RT stack. Affects rayqueries only", true)
DECLARE_IGC_REGKEY(bool, DisableWideTraceRay, false, "Disable SIMD16 style message payloads for send.rta", true)
DECLARE_IGC_REGKEY(bool, ForceRTCheckInstanceLeafPtr, true, "Check MemHit::valid before loading GeometryIndex, PrimitiveIndex, etc.", true)
DECLARE_IGC_REGKEY(DWORD, RTInValidDefaultIndex, 0xFFFFFFFF, "If MemHit::valid is false, the default value to return for some intrinsics like GeometryIndex or PrimitiveIndex etc.", true)
DECLARE_IGC_REGKEY(DWORD, ForceRTCheckInstanceLeafPtrMask, 0xF, "Test only. 1: committedindex; 2: potentialindex", true)
DECLARE_IGC_REGKEY(bool, ForceRTShortCircuitingOR, true, "Only for specific test.... Short curcite OR condition if CommittedGeometryIndex is used", true)
DECLARE_IGC_REGKEY(DWORD, RTFenceToggle, 0, "Toggle fences", true)
DECLARE_IGC_REGKEY(bool, EnableLSCCacheOptimization, false, "Optimize store instructions for utilizing the LSC-L1 cache", false)
DECLARE_IGC_REGKEY(bool, EnableSingleRQMemRayStore, true, "Store RayQuery MemRay[TOP] only once.", false)
DECLARE_IGC_REGKEY(DWORD,TotalGRFNum4RQ, 0, "Total GRF used for register allocation for RayQuery only. Test only. Delete later.", false)
DECLARE_IGC_REGKEY(bool, ForceCSLeastSIMD4RQ, false, "Force computer shader with RayQuery to the lowest allowed SIMD mode", false)
DECLARE_IGC_REGKEY(DWORD, ForceCSSimdSize4RQ, 0, "Force RayQuery compute shader simd size,\
valid values are 0 (not set), 8, 16 and 32\
ignored if produces invalid cofiguration, e.g. simd size too small for workgroup size", true)
DECLARE_IGC_REGKEY(bool, EnableRQHideLatency, false, "Hide RayQuery Proceed latency.", false)
DECLARE_IGC_REGKEY(bool, DisableShaderFusion, false, "Don't check for duplicate, renamed shaders", false)
DECLARE_IGC_REGKEY(DWORD, ShaderFusionThrehold, 1000, "If there are less shaders than this, don't spend time checking duplicates", false)
DECLARE_IGC_REGKEY(bool, DisableRTAliasAnalysis, false, "Disable Raytracing Alias Analysis", false)
DECLARE_IGC_REGKEY(bool, DisableExamineRayFlag, false, "Don't do IPO to see if we can fold control flow given knowledge of possible rayflag values", false)
DECLARE_IGC_REGKEY(bool, DisableSpillReorder, false, "Disables reordering of spills to try to minmize spills in a loop", false)
DECLARE_IGC_REGKEY(bool, DisablePromoteContinuation, false, "BTD-able continuations in the raygen may be moved to the shader identifier", false)
DECLARE_IGC_REGKEY(bool, EnableStackIDReleaseScheduling, false, "Schedule Stack ID Release messages prior to the end of the shader", false)
DECLARE_IGC_REGKEY(bool, DisableRTMemDSE, false, "Analyze stores to SWStack, etc. that aren't read before Stack ID Release", false)
DECLARE_IGC_REGKEY(bool, DisableRTFenceElision, false, "Disable optimization to remove unneeded fences", false)
DECLARE_IGC_REGKEY(bool, DisableDPSE, false, "Disable Dead PayloadStore Elimination.", true)
DECLARE_IGC_REGKEY(bool, EnableRTDispatchAlongY, false, "Dispatch Compute Walker along Y first", true)
DECLARE_IGC_REGKEY(bool, DisablePredicatedStackIDRelease, false, "Emit a single stack ID release at the end of the shader", true)
DECLARE_IGC_REGKEY(bool, DisableCrossFillRemat, false, "Rematerialize values if they use already spilled values", true)
DECLARE_IGC_REGKEY(bool, EnableSyncDispatchRays, false, "Enable sync DispatchRays implementation", false)
DECLARE_IGC_REGKEY(bool, ForceIndirectCallsInSyncDispatchRays, false, "Will skip direct calls in synchronous raytracing and immediately call raytracing shaders via KSP shader ptr", false)
DECLARE_IGC_REGKEY(bool, ForceInliningTraceRayCallsInSyncDispatchRays, false, "Will inline calls to __TraceRay, __Invoke and __TraceRaySyncToAsyncAdapter even when indirect calls are not necessary", false)
DECLARE_IGC_REGKEY(bool, ForceRTRetry, false, "Raytracing is compiled in the second retry state", false)
DECLARE_IGC_REGKEY(bool, DisableRTRetryPickBetter, false, "Disables raytracing retry to pick the best compilation instead of always using the retry compilation.", false)
DECLARE_IGC_REGKEY(DWORD, RetryRTSpillMemThreshold, 200, "Only retry if spill mem used is more than this value", false)
DECLARE_IGC_REGKEY(DWORD, RetryRTSpillCostThreshold, 5, "Only retry if the percentage of spills (over total instructions) is more than this value", false)
DECLARE_IGC_REGKEY(DWORD, RetryRTPickBetterThreshold, 10, "Only pick the retry shader if the spill cost of the 2nd compilation is at least this percentage better than the previous compilation", false)
DECLARE_IGC_REGKEY(bool, EnableFillScheduling, false, "Schedule fills for reduced register pressure", false)
DECLARE_IGC_REGKEY(bool, DisableSWStackOffsetElision, false, "Avoid loading offseting when known at compile-time", false)
DECLARE_IGC_REGKEY(DWORD, OverrideTMax, 0, "Force TMax to the given value. When 0, do nothing.", false)
DECLARE_IGC_REGKEY(bool, DisableLoadAsFenceOpInRaytracing, true, "Disable load as fence op in raytracing (rayquery only)", false)