-
-
Notifications
You must be signed in to change notification settings - Fork 5.4k
/
inference.jl
5608 lines (5051 loc) · 211 KB
/
inference.jl
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
# This file is a part of Julia. License is MIT: https://julialang.org/license
# tests for Core.Compiler correctness and precision
import Core.Compiler: Const, Conditional, ⊑, ReturnNode, GotoIfNot
isdispatchelem(@nospecialize x) = !isa(x, Type) || Core.Compiler.isdispatchelem(x)
using Random, Core.IR
using InteractiveUtils
include("irutils.jl")
f39082(x::Vararg{T}) where {T <: Number} = x[1]
let ast = only(code_typed(f39082, Tuple{Vararg{Rational}}))[1]
@test ast.slottypes == Any[Const(f39082), Tuple{Vararg{Rational}}]
end
let ast = only(code_typed(f39082, Tuple{Rational, Vararg{Rational}}))[1]
@test ast.slottypes == Any[Const(f39082), Tuple{Rational, Vararg{Rational}}]
end
# demonstrate some of the type-size limits
@test Core.Compiler.limit_type_size(Ref{Complex{T} where T}, Ref, Ref, 100, 0) == Ref
@test Core.Compiler.limit_type_size(Ref{Complex{T} where T}, Ref{Complex{T} where T}, Ref, 100, 0) == Ref{Complex{T} where T}
let comparison = Tuple{X, X} where X<:Tuple
sig = Tuple{X, X} where X<:comparison
ref = Tuple{X, X} where X
@test Core.Compiler.limit_type_size(sig, comparison, comparison, 100, 100) == Tuple{Tuple, Tuple}
@test Core.Compiler.limit_type_size(sig, ref, comparison, 100, 100) == Tuple{Any, Any}
@test Core.Compiler.limit_type_size(Tuple{sig}, Tuple{ref}, comparison, 100, 100) == Tuple{Tuple{Any, Any}}
@test Core.Compiler.limit_type_size(ref, sig, Union{}, 100, 100) == ref
end
let ref = Tuple{T, Val{T}} where T<:Val
sig = Tuple{T, Val{T}} where T<:(Val{T} where T<:Val)
@test Core.Compiler.limit_type_size(sig, ref, Union{}, 100, 100) == Tuple{Val, Val}
@test Core.Compiler.limit_type_size(ref, sig, Union{}, 100, 100) == ref
end
let ref = Tuple{T, Val{T}} where T<:(Val{T} where T<:(Val{T} where T<:(Val{T} where T<:Val)))
sig = Tuple{T, Val{T}} where T<:(Val{T} where T<:(Val{T} where T<:(Val{T} where T<:(Val{T} where T<:Val))))
@test Core.Compiler.limit_type_size(sig, ref, Union{}, 100, 100) == Tuple{Val, Val}
@test Core.Compiler.limit_type_size(ref, sig, Union{}, 100, 100) == ref
end
let t = Tuple{Ref{T},T,T} where T, c = Tuple{Ref, T, T} where T # #36407
@test t <: Core.Compiler.limit_type_size(t, c, Union{}, 1, 100)
end
# obtain Vararg with 2 undefined fields
let va = ccall(:jl_type_intersection_with_env, Any, (Any, Any), Tuple{Tuple}, Tuple{Tuple{Vararg{Any, N}}} where N)[2][1]
@test Core.Compiler.__limit_type_size(Tuple, va, Core.svec(va, Union{}), 2, 2) === Tuple
end
mutable struct TS14009{T}; end
let A = TS14009{TS14009{TS14009{TS14009{TS14009{T}}}}} where {T},
B = Base.rewrap_unionall(TS14009{Base.unwrap_unionall(A)}, A)
@test Core.Compiler.Compiler.limit_type_size(B, A, A, 2, 2) == TS14009
end
# issue #42835
@test !Core.Compiler.type_more_complex(Int, Any, Core.svec(), 1, 1, 1)
@test !Core.Compiler.type_more_complex(Int, Type{Int}, Core.svec(), 1, 1, 1)
@test !Core.Compiler.type_more_complex(Type{Int}, Any, Core.svec(), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{Type{Int}}, Any, Core.svec(), 1, 1, 1)
@test Core.Compiler.limit_type_size(Type{Int}, Any, Union{}, 0, 0) == Type{Int}
@test Core.Compiler.type_more_complex(Type{Type{Int}}, Type{Int}, Core.svec(Type{Int}), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{Type{Int}}, Int, Core.svec(Type{Int}), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{Type{Int}}, Any, Core.svec(), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{Type{Type{Int}}}, Type{Type{Int}}, Core.svec(Type{Type{Int}}), 1, 1, 1)
@test Core.Compiler.type_more_complex(ComplexF32, Any, Core.svec(), 1, 1, 1)
@test !Core.Compiler.type_more_complex(ComplexF32, Any, Core.svec(Type{ComplexF32}), 1, 1, 1)
@test Core.Compiler.type_more_complex(ComplexF32, Type{ComplexF32}, Core.svec(), 1, 1, 1)
@test !Core.Compiler.type_more_complex(Type{ComplexF32}, Any, Core.svec(Type{Type{ComplexF32}}), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{ComplexF32}, Type{Type{ComplexF32}}, Core.svec(), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{ComplexF32}, ComplexF32, Core.svec(), 1, 1, 1)
@test Core.Compiler.limit_type_size(Type{ComplexF32}, ComplexF32, Union{}, 1, 1) == Type{<:Complex}
@test Core.Compiler.type_more_complex(Type{ComplexF32}, Any, Core.svec(), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{Type{ComplexF32}}, Type{ComplexF32}, Core.svec(Type{ComplexF32}), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{Type{ComplexF32}}, ComplexF32, Core.svec(ComplexF32), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{Type{Type{ComplexF32}}}, Type{Type{ComplexF32}}, Core.svec(Type{ComplexF32}), 1, 1, 1)
# n.b. Type{Type{Union{}} === Type{Core.TypeofBottom}
@test !Core.Compiler.type_more_complex(Type{Union{}}, Any, Core.svec(), 1, 1, 1)
@test !Core.Compiler.type_more_complex(Type{Type{Union{}}}, Any, Core.svec(), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{Type{Type{Union{}}}}, Any, Core.svec(), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{Type{Type{Union{}}}}, Type{Type{Union{}}}, Core.svec(Type{Type{Union{}}}), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{Type{Type{Type{Union{}}}}}, Type{Type{Type{Union{}}}}, Core.svec(Type{Type{Type{Union{}}}}), 1, 1, 1)
@test !Core.Compiler.type_more_complex(Type{1}, Type{2}, Core.svec(), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{Union{Float32,Float64}}, Union{Float32,Float64}, Core.svec(Union{Float32,Float64}), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{Type{Union{Float32,Float64}}}, Union{Float32,Float64}, Core.svec(Union{Float32,Float64}), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{Type{Union{Float32,Float64}}}, Type{Union{Float32,Float64}}, Core.svec(Type{Union{Float32,Float64}}), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{<:Union{Float32,Float64}}, Type{Union{Float32,Float64}}, Core.svec(Union{Float32,Float64}), 1, 1, 1)
@test Core.Compiler.type_more_complex(Type{<:Union{Float32,Float64}}, Any, Core.svec(Union{Float32,Float64}), 1, 1, 1)
# issue #49287
@test !Core.Compiler.type_more_complex(Tuple{Vararg{Tuple{}}}, Tuple{Vararg{Tuple}}, Core.svec(), 0, 0, 0)
@test Core.Compiler.type_more_complex(Tuple{Vararg{Tuple}}, Tuple{Vararg{Tuple{}}}, Core.svec(), 0, 0, 0)
# issue #51694
@test Core.Compiler.type_more_complex(
Base.Generator{Base.Iterators.Flatten{Array{Bool, 1}}, typeof(identity)},
Base.Generator{Array{Bool, 1}, typeof(identity)},
Core.svec(), 0, 0, 0)
@test Core.Compiler.type_more_complex(
Base.Generator{Base.Iterators.Flatten{Base.Generator{Array{Bool, 1}, typeof(identity)}}, typeof(identity)},
Base.Generator{Array{Bool, 1}, typeof(identity)},
Core.svec(), 0, 0, 0)
let # 40336
t = Type{Type{Type{Int}}}
c = Type{Type{Int}}
r = Core.Compiler.limit_type_size(t, c, c, 100, 100)
@test t !== r && t <: r
end
@test Core.Compiler.limit_type_size(Type{Type{Type{Int}}}, Type, Union{}, 0, 0) == Type{<:Type}
@test Core.Compiler.limit_type_size(Type{Type{Int}}, Type, Union{}, 0, 0) == Type{<:Type}
@test Core.Compiler.limit_type_size(Type{Int}, Type, Union{}, 0, 0) == Type{Int}
@test Core.Compiler.limit_type_size(Type{<:Int}, Type, Union{}, 0, 0) == Type{<:Int}
@test Core.Compiler.limit_type_size(Type{ComplexF32}, ComplexF32, Union{}, 0, 0) == Type{<:Complex} # added nesting
@test Core.Compiler.limit_type_size(Type{ComplexF32}, Type{ComplexF64}, Union{}, 0, 0) == Type{ComplexF32} # base matches
@test Core.Compiler.limit_type_size(Type{ComplexF32}, Type, Union{}, 0, 0) == Type{<:Complex}
@test_broken Core.Compiler.limit_type_size(Type{<:ComplexF64}, Type, Union{}, 0, 0) == Type{<:Complex}
@test Core.Compiler.limit_type_size(Type{<:ComplexF64}, Type, Union{}, 0, 0) == Type #50692
@test Core.Compiler.limit_type_size(Type{Union{ComplexF32,ComplexF64}}, Type, Union{}, 0, 0) == Type
@test_broken Core.Compiler.limit_type_size(Type{Union{ComplexF32,ComplexF64}}, Type, Union{}, 0, 0) == Type{<:Complex} #50692
@test Core.Compiler.limit_type_size(Type{Union{Float32,Float64}}, Type, Union{}, 0, 0) == Type
@test Core.Compiler.limit_type_size(Type{Union{Int,Type{Int}}}, Type{Type{Int}}, Union{}, 0, 0) == Type
@test Core.Compiler.limit_type_size(Type{Union{Int,Type{Int}}}, Union{Type{Int},Type{Type{Int}}}, Union{}, 0, 0) == Type
@test Core.Compiler.limit_type_size(Type{Union{Int,Type{Int}}}, Type{Union{Type{Int},Type{Type{Int}}}}, Union{}, 0, 0) == Type{Union{Int, Type{Int}}}
@test Core.Compiler.limit_type_size(Type{Union{Int,Type{Int}}}, Type{Type{Int}}, Union{}, 0, 0) == Type
@test Core.Compiler.limit_type_size(Type{Any}, Union{}, Union{}, 0, 0) ==
Core.Compiler.limit_type_size(Type{Any}, Any, Union{}, 0, 0) ==
Core.Compiler.limit_type_size(Type{Any}, Type, Union{}, 0, 0) ==
Type{Any}
# issue #43296
struct C43296{t,I} end
r43296(b) = r43296(typeof(b))
r43296(::Type) = nothing
r43296(::Nothing) = nonexistent
r43296(::Type{C43296{c,d}}) where {c,d} = f43296(r43296(c), e)
f43296(::Nothing, :) = nothing
f43296(g, :) = h
k43296(b, j, :) = l
k43296(b, j, ::Nothing) = b
i43296(b, j) = k43296(b, j, r43296(j))
@test only(Base.return_types(i43296, (Int, C43296{C43296{C43296{Val, Tuple}}}))) <: Int
@test only(Base.return_types(i43296, (Int, C43296{C43296{C43296{Val, <:Tuple}}}))) <: Int
abstract type e43296{a, j} <: AbstractArray{a, j} end
abstract type b43296{a, j, c, d} <: e43296{a, j} end
struct h43296{a, j, f, d, i} <: b43296{a, j, f, d} end
Base.ndims(::Type{f}) where {f<:e43296} = ndims(supertype(f))
Base.ndims(g::e43296) = ndims(typeof(g))
@test only(Base.return_types(ndims, (h43296{Any, 0, Any, Int, Any},))) == Int
@test Core.Compiler.unionlen(Union{}) == 1
@test Core.Compiler.unionlen(Int8) == 1
@test Core.Compiler.unionlen(Union{Int8, Int16}) == 2
@test Core.Compiler.unionlen(Union{Int8, Int16, Int32, Int64}) == 4
@test Core.Compiler.unionlen(Tuple{Union{Int8, Int16, Int32, Int64}}) == 1
@test Core.Compiler.unionlen(Union{Int8, Int16, Int32, T} where T) == 1
@test Core.Compiler.unioncomplexity(Union{}) == 0
@test Core.Compiler.unioncomplexity(Int8) == 0
@test Core.Compiler.unioncomplexity(Val{Union{Int8, Int16, Int32, Int64}}) == 0
@test Core.Compiler.unioncomplexity(Union{Int8, Int16}) == 1
@test Core.Compiler.unioncomplexity(Union{Int8, Int16, Int32, Int64}) == 3
@test Core.Compiler.unioncomplexity(Tuple{Union{Int8, Int16, Int32, Int64}}) == 3
@test Core.Compiler.unioncomplexity(Union{Int8, Int16, Int32, T} where T) == 3
@test Core.Compiler.unioncomplexity(Tuple{Val{T}, Union{Int8, Int16}, Int8} where T<:Union{Int8, Int16, Int32, Int64}) == 3
@test Core.Compiler.unioncomplexity(Tuple{Vararg{Tuple{Union{Int8, Int16}}}}) == 2
@test Core.Compiler.unioncomplexity(Tuple{Vararg{Symbol}}) == 1
@test Core.Compiler.unioncomplexity(Tuple{Vararg{Union{Symbol, Tuple{Vararg{Symbol}}}}}) == 3
@test Core.Compiler.unioncomplexity(Tuple{Vararg{Union{Symbol, Tuple{Vararg{Union{Symbol, Tuple{Vararg{Symbol}}}}}}}}) == 5
@test Core.Compiler.unioncomplexity(Tuple{Vararg{Union{Symbol, Tuple{Vararg{Union{Symbol, Tuple{Vararg{Union{Symbol, Tuple{Vararg{Symbol}}}}}}}}}}}) == 7
# PR 22120
function tuplemerge_test(a, b, r, commutative=true)
@test r == Core.Compiler.tuplemerge(a, b)
if commutative
@test r == Core.Compiler.tuplemerge(b, a)
else
@test_broken r == Core.Compiler.tuplemerge(b, a)
end
end
tuplemerge_test(Tuple{Int}, Tuple{String}, Tuple{Union{Int, String}})
tuplemerge_test(Tuple{Int}, Tuple{String, String}, Tuple)
tuplemerge_test(Tuple{Vararg{Int}}, Tuple{String}, Tuple)
tuplemerge_test(Tuple{Int}, Tuple{Int, Int},
Tuple{Vararg{Int}})
tuplemerge_test(Tuple{Integer}, Tuple{Int, Int},
Tuple{Vararg{Integer}})
tuplemerge_test(Tuple{}, Tuple{Int, Int},
Tuple{Vararg{Int}})
tuplemerge_test(Tuple{}, Tuple{Complex},
Tuple{Vararg{Complex}})
tuplemerge_test(Tuple{ComplexF32}, Tuple{ComplexF32, ComplexF64},
Tuple{Vararg{Complex}})
tuplemerge_test(Tuple{Vararg{ComplexF32}}, Tuple{Vararg{ComplexF64}},
Tuple{Vararg{Complex}})
tuplemerge_test(Tuple{}, Tuple{ComplexF32, Vararg{Union{ComplexF32, ComplexF64}}},
Tuple{Vararg{Union{ComplexF32, ComplexF64}}})
tuplemerge_test(Tuple{ComplexF32}, Tuple{ComplexF32, Vararg{Union{ComplexF32, ComplexF64}}},
Tuple{Vararg{Union{ComplexF32, ComplexF64}}})
tuplemerge_test(Tuple{ComplexF32, ComplexF32, ComplexF32}, Tuple{ComplexF32, Vararg{Union{ComplexF32, ComplexF64}}},
Tuple{Vararg{Union{ComplexF32, ComplexF64}}})
tuplemerge_test(Tuple{}, Tuple{Union{ComplexF64, ComplexF32}, Vararg{Union{ComplexF32, ComplexF64}}},
Tuple{Vararg{Union{ComplexF32, ComplexF64}}})
tuplemerge_test(Tuple{ComplexF64, ComplexF64, ComplexF32}, Tuple{Vararg{Union{ComplexF32, ComplexF64}}},
Tuple{Vararg{Complex}}, false)
tuplemerge_test(Tuple{}, Tuple{Complex, Vararg{Union{ComplexF32, ComplexF64}}},
Tuple{Vararg{Complex}})
@test Core.Compiler.tmerge(Tuple{}, Union{Nothing, Tuple{ComplexF32, ComplexF32}}) ==
Union{Nothing, Tuple{}, Tuple{ComplexF32, ComplexF32}}
@test Core.Compiler.tmerge(Tuple{}, Union{Nothing, Tuple{ComplexF32}, Tuple{ComplexF32, ComplexF32}}) ==
Union{Nothing, Tuple{Vararg{ComplexF32}}}
@test Core.Compiler.tmerge(Union{Nothing, Tuple{ComplexF32}}, Union{Nothing, Tuple{ComplexF32, ComplexF32}}) ==
Union{Nothing, Tuple{ComplexF32}, Tuple{ComplexF32, ComplexF32}}
@test Core.Compiler.tmerge(Union{Nothing, Tuple{}, Tuple{ComplexF32}}, Union{Nothing, Tuple{ComplexF32, ComplexF32}}) ==
Union{Nothing, Tuple{Vararg{ComplexF32}}}
@test Core.Compiler.tmerge(Vector{Int}, Core.Compiler.tmerge(Vector{String}, Vector{Bool})) ==
Union{Vector{Bool}, Vector{Int}, Vector{String}}
@test Core.Compiler.tmerge(Vector{Int}, Core.Compiler.tmerge(Vector{String}, Union{Vector{Bool}, Vector{Symbol}})) == Vector
@test Core.Compiler.tmerge(Base.BitIntegerType, Union{}) === Base.BitIntegerType
@test Core.Compiler.tmerge(Union{}, Base.BitIntegerType) === Base.BitIntegerType
@test Core.Compiler.tmerge(Core.Compiler.fallback_ipo_lattice, Core.Compiler.InterConditional(1, Int, Union{}), Core.Compiler.InterConditional(2, String, Union{})) === Core.Compiler.Const(true)
# test issue behind https://github.com/JuliaLang/julia/issues/50458
@test Core.Compiler.tmerge(Nothing, Tuple{Base.BitInteger, Int}) == Union{Nothing, Tuple{Base.BitInteger, Int}}
@test Core.Compiler.tmerge(Union{Nothing, Tuple{Int, Int}}, Tuple{Base.BitInteger, Int}) == Union{Nothing, Tuple{Any, Int}}
@test Core.Compiler.tmerge(Nothing, Tuple{Union{Char, String, SubString{String}, Symbol}, Int}) == Union{Nothing, Tuple{Union{Char, String, SubString{String}, Symbol}, Int}}
@test Core.Compiler.tmerge(Union{Nothing, Tuple{Char, Int}}, Tuple{Union{Char, String, SubString{String}, Symbol}, Int}) == Union{Nothing, Tuple{Union{Char, String, SubString{String}, Symbol}, Int}}
@test Core.Compiler.tmerge(Nothing, Tuple{Integer, Int}) == Union{Nothing, Tuple{Integer, Int}}
@test Core.Compiler.tmerge(Union{Nothing, Tuple{Int, Int}}, Tuple{Integer, Int}) == Union{Nothing, Tuple{Integer, Int}}
@test Core.Compiler.tmerge(Union{Nothing, AbstractVector{Int}}, Vector) == Union{Nothing, AbstractVector}
@test Core.Compiler.tmerge(Union{Nothing, AbstractVector{Int}}, Matrix) == Union{Nothing, AbstractArray}
@test Core.Compiler.tmerge(Union{Nothing, AbstractVector{Int}}, Matrix{Int}) == Union{Nothing, AbstractArray{Int}}
@test Core.Compiler.tmerge(Union{Nothing, AbstractVector{Int}}, Array) == Union{Nothing, AbstractArray}
@test Core.Compiler.tmerge(Union{Nothing, AbstractArray{Int}}, Vector) == Union{Nothing, AbstractArray}
@test Core.Compiler.tmerge(Union{Nothing, AbstractVector}, Matrix{Int}) == Union{Nothing, AbstractArray}
@test Core.Compiler.tmerge(Union{Nothing, AbstractFloat}, Integer) == Union{Nothing, AbstractFloat, Integer}
# test that recursively more complicated types don't widen all the way to Any when there is a useful valid type upper bound
# Specifically test with base types of a trivial type, a simple union, a complicated union, and a tuple.
for T in (Nothing, Base.BitInteger, Union{Int, Int32, Int16, Int8}, Tuple{Int, Int})
Ta, Tb = T, T
for i in 1:10
Ta = Union{Tuple{Ta}, Nothing}
Tb = Core.Compiler.tmerge(Tuple{Tb}, Nothing)
@test Ta <: Tb <: Union{Nothing, Tuple}
end
end
struct SomethingBits
x::Base.BitIntegerType
end
@test Base.return_types(getproperty, (SomethingBits, Symbol)) == Any[Base.BitIntegerType]
# issue 9770
@noinline x9770() = false
function f9770(x)
return if x9770()
g9770(:a, :foo)
else
x
end
end
function g9770(x,y)
return if isa(y, Symbol)
f9770(x)
else
g9770(:a, :foo)
end
end
@test g9770(:a, "c") === :a
@test g9770(:b, :c) === :b
# issue #1628
mutable struct I1628{X}
x::X
end
let
# here the potential problem is that the run-time value of static
# parameter X in the I1628 constructor is (DataType,DataType),
# but type inference will track it more accurately as
# (Type{Integer}, Type{Int}).
f1628() = I1628((Integer,Int))
@test isa(f1628(), I1628{Tuple{DataType,DataType}})
end
let
fT(x::T) where {T} = T
@test fT(Any) === DataType
@test fT(Int) === DataType
@test fT(Type{Any}) === DataType
@test fT(Type{Int}) === DataType
ff(x::Type{T}) where {T} = T
@test ff(Type{Any}) === Type{Any}
@test ff(Type{Int}) === Type{Int}
@test ff(Any) === Any
@test ff(Int) === Int
end
# issue #3182
f3182(::Type{T}) where {T} = 0
f3182(x) = 1
function g3182(t::DataType)
# tricky thing here is that DataType is a concrete type, and a
# subtype of Type, but we cannot infer the T in Type{T} just
# by knowing (at compile time) that the argument is a DataType.
# however the ::Type{T} method should still match at run time.
return f3182(t)
end
@test g3182(Complex.body) == 0
# issue #5906
abstract type Outer5906{T} end
struct Inner5906{T}
a:: T
end
struct Empty5906{T} <: Outer5906{T}
end
struct Hanoi5906{T} <: Outer5906{T}
a::T
succ :: Outer5906{Inner5906{T}}
Hanoi5906{T}(a) where T = new(a, Empty5906{Inner5906{T}}())
end
function f5906(h::Hanoi5906{T}) where T
if isa(h.succ, Empty5906) return end
f5906(h.succ)
end
# can cause infinite recursion in type inference via instantiation of
# the type of the `succ` field
@test f5906(Hanoi5906{Int}(1)) === nothing
# issue on the flight from DFW
# (type inference deducing Type{:x} rather than Symbol)
mutable struct FooBarDFW{s}; end
fooDFW(p::Type{FooBarDFW}) = string(p.parameters[1])
fooDFW(p) = string(p.parameters[1])
@test fooDFW(FooBarDFW{:x}) == "x" # not ":x"
# Type inference for tuple parameters
struct fooTuple{s}; end
barTuple1() = fooTuple{(:y,)}()
barTuple2() = fooTuple{tuple(:y)}()
@test Base.return_types(barTuple1,Tuple{})[1] == Base.return_types(barTuple2,Tuple{})[1] == fooTuple{(:y,)}
# issue #6050
@test Core.Compiler.getfield_tfunc(Core.Compiler.fallback_lattice,
Dict{Int64,Tuple{UnitRange{Int64},UnitRange{Int64}}},
Core.Compiler.Const(:vals)) == Memory{Tuple{UnitRange{Int64},UnitRange{Int64}}}
# assert robustness of `getfield_tfunc`
struct GetfieldRobustness
field::String
end
@test Base.return_types((GetfieldRobustness,String,)) do obj, s
t = (10, s) # to form `PartialStruct`
getfield(obj, t)
end |> only === Union{}
# issue #12476
function f12476(a)
(k, v) = a
return v
end
@inferred f12476(1.0 => 1)
# issue #12551 (make sure these don't throw in inference)
Base.return_types(unsafe_load, (Ptr{nothing},))
Base.return_types(getindex, (Vector{nothing},))
# issue #12636
module MyColors
abstract type Paint{T} end
struct RGB{T<:AbstractFloat} <: Paint{T}
r::T
g::T
b::T
end
myeltype(::Type{Paint{T}}) where {T} = T
myeltype(::Type{P}) where {P<:Paint} = myeltype(supertype(P))
myeltype(::Type{Any}) = Any
end
@test @inferred(MyColors.myeltype(MyColors.RGB{Float32})) == Float32
@test @inferred(MyColors.myeltype(MyColors.RGB)) == Any
# issue #12826
f12826(v::Vector{I}) where {I<:Integer} = v[1]
@test Base.return_types(f12826,Tuple{Array{I,1} where I<:Integer})[1] == Integer
# non-terminating inference, issue #14009
# non-terminating codegen, issue #16201
mutable struct A14009{T}; end
A14009(a::T) where {T} = A14009{T}()
f14009(a) = rand(Bool) ? f14009(A14009(a)) : a
code_typed(f14009, (Int,))
code_llvm(devnull, f14009, (Int,))
@test Base.infer_exception_type(f14009, (Int,)) != Union{}
mutable struct B14009{T}; end
g14009(a) = g14009(B14009{a})
code_typed(g14009, (Type{Int},))
code_llvm(devnull, g14009, (Type{Int},))
@test Base.infer_exception_type(g14009, (Type{Int},)) == StackOverflowError
# issue #9232
arithtype9232(::Type{T},::Type{T}) where {T<:Real} = arithtype9232(T)
result_type9232(::Type{T1}, ::Type{T2}) where {T1<:Number,T2<:Number} = arithtype9232(T1, T2)
# this gave a "type too large", but not reliably
@test length(code_typed(result_type9232, Tuple{(Type{x} where x<:Union{Float32,Float64}), Type{T2} where T2<:Number})) == 1
# issue #10878
function g10878(x; kw...); end
invoke_g10878() = invoke(g10878, Tuple{Any}, 1)
code_typed(invoke_g10878, ())
code_llvm(devnull, invoke_g10878, ())
# issue #10930
@test isa(Base.return_types(promote, (Any,Any,Vararg{Any})), Vector)
find_tvar10930(sig::Type{T}) where {T<:Tuple} = 1
function find_tvar10930(arg)
if isa(arg, Type) && arg<:Tuple
find_tvar10930(arg[random_var_name])
end
return 1
end
@test find_tvar10930(Vararg{Int}) === 1
# issue #12474
@generated function f12474(::Any)
return :(for i in 1
end)
end
let ast12474 = code_typed(f12474, Tuple{Float64})
@test isdispatchelem(ast12474[1][2])
end
# pr #15259
struct A15259
x
y
end
# check that allocation was elided
@eval f15259(x,y) = (a = $(Expr(:new, :A15259, :x, :y)); (a.x, a.y, getfield(a,1), getfield(a, 2)))
@test isempty(filter(x -> isa(x,Expr) && x.head === :(=) &&
isa(x.args[2], Expr) && x.args[2].head === :new,
code_typed(f15259, (Any,Int))[1][1].code))
@test f15259(1,2) == (1,2,1,2)
# check that error cases are still correct
@eval g15259(x,y) = (a = $(Expr(:new, :A15259, :x, :y)); a.z)
@test_throws ErrorException g15259(1,1)
@eval h15259(x,y) = (a = $(Expr(:new, :A15259, :x, :y)); getfield(a, 3))
@test_throws BoundsError h15259(1,1)
# issue #7810
mutable struct Foo7810{T<:AbstractVector}
v::T
end
bar7810() = [Foo7810([(a,b) for a in 1:2]) for b in 3:4]
@test Base.return_types(bar7810,Tuple{})[1] == Array{Foo7810{Array{Tuple{Int,Int},1}},1}
# issue #11366
f11366(x::Type{Ref{T}}) where {T} = Ref{x}
@test !isconcretetype(Base.return_types(f11366, (Any,))[1])
let f(T) = Type{T}
@test Base.return_types(f, Tuple{Type{Int}}) == Any[Type{Type{Int}}]
end
# issue #9222
function SimpleTest9222(pdedata, mu_actual::Vector{T1},
nu_actual::Vector{T1}, v0::Vector{T1}, epsilon::T1, beta::Vector{T1},
delta::T1, l::T1, R::T1, s0::T1, show_trace::Bool = true) where T1<:Real
return 0.0
end
function SimpleTest9222(pdedata, mu_actual::Vector{T1},
nu_actual::Vector{T1}, v0::Vector{T1}, epsilon::T1, beta::Vector{T1},
delta::T1, l::T1, R::T1) where T1<:Real
return SimpleTest9222(pdedata, mu_actual, nu_actual, v0, epsilon,
beta, delta, l, R, v0[1])
end
function foo9222()
v0 = rand(10)
mu_actual = rand(10)
nu_actual = rand(10)
SimpleTest9222(0.0, mu_actual, nu_actual, v0, 0.0, [1.0,1.0], 0.5, 5.0, 20.0)
end
@test 0.0 == foo9222()
# branching based on inferable conditions
let f(x) = isa(x,Int) ? 1 : ""
@test Base.return_types(f, Tuple{Int}) == [Int]
end
let g() = Int <: Real ? 1 : ""
@test Base.return_types(g, Tuple{}) == [Int]
end
const NInt{N} = Tuple{Vararg{Int, N}}
const NInt1{N} = Tuple{Int, Vararg{Int, N}}
@test Base.eltype(NInt) === Int
@test Base.eltype(NInt1) === Int
@test Base.eltype(NInt{0}) === Union{}
@test Base.eltype(NInt{1}) === Int
@test Base.eltype(NInt1{0}) === Int
@test Base.eltype(NInt1{1}) === Int
fNInt(x::NInt) = (x...,)
gNInt() = fNInt(x)
@test Base.return_types(gNInt, ()) == Any[NInt]
@test Base.return_types(eltype, (NInt,)) == Any[Union{Type{Int}, Type{Union{}}}] # issue 21763
# issue #17572
function f17572(::Type{Val{A}}) where A
return Tuple{Int}(Tuple{A}((1,)))
end
# test that inference doesn't error
@test isa(code_typed(f17572, (Type{Val{0}},)), Array)
# === with singleton constants
let f(x) = (x===nothing) ? 1 : 1.0
@test Base.return_types(f, (Nothing,)) == Any[Int]
end
# issue #16530
mutable struct Foo16530a{dim}
c::Vector{NTuple{dim, Float64}}
d::Vector
end
mutable struct Foo16530b{dim}
c::Vector{NTuple{dim, Float64}}
end
f16530a() = fieldtype(Foo16530a, :c)
f16530a(c) = fieldtype(Foo16530a, c)
f16530b() = fieldtype(Foo16530b, :c)
f16530b(c) = fieldtype(Foo16530b, c)
let T = Vector{Tuple{Vararg{Float64,dim}}} where dim
@test f16530a() == T
@test f16530a(:c) == T
@test Base.return_types(f16530a, ()) == Any[Type{T}]
@test Base.return_types(f16530b, ()) == Any[Type{T}]
@test Base.return_types(f16530b, (Symbol,)) == Any[Type{T}]
end
@test f16530a(:d) == Vector
let T1 = Tuple{Int, Float64},
T2 = Tuple{Int, Float32},
T = Tuple{T1, T2}
global f18037
f18037() = fieldtype(T, 1)
f18037(i) = fieldtype(T, i)
@test f18037() === T1
@test f18037(1) === T1
@test f18037(2) === T2
@test Base.return_types(f18037, ()) == Any[Type{T1}]
@test Base.return_types(f18037, (Int,)) == Any[Union{Type{T1},Type{T2}}]
end
# issue #18015
mutable struct Triple18015
a::Int
b::Int
c::Int
end
a18015(tri) = tri.a
b18015(tri) = tri.b
c18015(tri) = tri.c
setabc18015!(tri, a, b, c) = (tri.a = a; tri.b = b; tri.c = c)
let tri = Triple18015(1, 2, 3)
setabc18015!(tri, b18015(tri), c18015(tri), a18015(tri))
@test tri.a === 2 && tri.b === 3 && tri.c === 1
end
# issue #18222
f18222(::Union{T, Int}) where {T<:AbstractFloat} = false
f18222(x) = true
g18222(x) = f18222(x)
@test f18222(1) == g18222(1) == false
@test f18222(1.0) == g18222(1.0) == false
# issue #18399
# TODO: this test is rather brittle
mutable struct TSlow18399{T}
x::T
end
function hvcat18399(as)
cb = ri->as[ri]
g = Base.Generator(cb, 1)
return g.f(1)
end
function cat_t18399(X...)
for i = 2:1
X[i]
d->i
end
end
C18399 = TSlow18399{Int}(1)
GB18399 = TSlow18399{Int}(1)
function test18399(C)
B = GB18399::Union{TSlow18399{Int},TSlow18399{Any}}
cat_t18399()
cat_t18399(B, B, B)
hvcat18399((C,))
return hvcat18399(((2, 3),))
end
@test test18399(C18399) == (2, 3)
# issue #18450
f18450() = ifelse(true, Tuple{Vararg{Int}}, Tuple{Vararg})
@test f18450() == Tuple{Vararg{Int}}
# issue #18569
@test !Core.Compiler.isconstType(Type{Tuple})
# issue #10880
function cat10880(a, b)
Tuple{a.parameters..., b.parameters...}
end
@inferred cat10880(Tuple{Int8,Int16}, Tuple{Int32})
# issue #19348
function is_typed_expr(e::Expr)
if e.head === :call ||
e.head === :invoke ||
e.head === :new ||
e.head === :copyast ||
e.head === :inert
return true
end
return false
end
is_typed_expr(@nospecialize other) = false
test_inferred_static(@nospecialize(other)) = true
function test_inferred_static(expr::Expr)
for a in expr.args
test_inferred_static(a)
end
end
function test_inferred_static(arrow::Pair, all_ssa)
code, rt = arrow
@test isdispatchelem(rt)
@test code.inferred
for i = 1:length(code.code)
e = code.code[i]
test_inferred_static(e)
if all_ssa && is_typed_expr(e)
@test isdispatchelem(code.ssavaluetypes[i])
end
end
end
function f18679()
local a
for i = 1:2
if i == 1
a = ((),)
else
return a[1]
end
end
error()
end
g18679(x::Tuple) = ()
g18679() = g18679(any_undef_global::Union{Int, Tuple{}})
function h18679()
for i = 1:2
local a
if i == 1
a = ((),)
else
@isdefined(a) && return "BAD"
end
end
end
function g19348(x)
a, b = x
g = 1
g = 2
c = Base.indexed_iterate(x, g, g)
return a + b + c[1]
end
for (codetype, all_ssa) in Any[
(code_typed(f18679, ())[1], true),
(code_typed(g18679, ())[1], false),
(code_typed(h18679, ())[1], true),
(code_typed(g19348, (typeof((1, 2.0)),))[1], true)]
code = codetype[1]
local i
for i = 1:length(code.ssavaluetypes)
typ = code.ssavaluetypes[i]
@test isa(typ, Type) || isa(typ, Const) || isa(typ, Conditional) || typ
end
test_inferred_static(codetype, all_ssa)
end
@test f18679() === ()
@test_throws UndefVarError(:any_undef_global, @__MODULE__) g18679()
@test h18679() === nothing
# issue #5575: inference with abstract types on a reasonably complex method tree
zeros5575(::Type{T}, dims::Tuple{Vararg{Any,N}}) where {T,N} = Array{T,N}(undef, dims)
zeros5575(dims::Tuple) = zeros5575(Float64, dims)
zeros5575(::Type{T}, dims...) where {T} = zeros5575(T, dims)
zeros5575(a::AbstractArray) = zeros5575(a, Float64)
zeros5575(a::AbstractArray, ::Type{T}) where {T} = zeros5575(a, T, size(a))
zeros5575(a::AbstractArray, ::Type{T}, dims::Tuple) where {T} = zeros5575(T, dims)
zeros5575(a::AbstractArray, ::Type{T}, dims...) where {T} = zeros5575(T, dims)
zeros5575(dims...) = zeros5575(dims)
f5575() = zeros5575(Type[Float64][1], 1)
@test Base.return_types(f5575, ())[1] == Vector
g5575() = zeros(Type[Float64][1], 1)
@test Base.return_types(g5575, ())[1] == Vector
# make sure Tuple{unknown} handles the possibility that `unknown` is a Vararg
function maybe_vararg_tuple_1()
x = Any[Vararg{Int}][1]
Tuple{x}
end
@test Type{Tuple{Vararg{Int}}} <: Base.return_types(maybe_vararg_tuple_1, ())[1]
function maybe_vararg_tuple_2()
x = [Vararg{Int}][1]
Tuple{x}
end
@test Type{Tuple{Vararg{Int}}} <: Base.return_types(maybe_vararg_tuple_2, ())[1]
# inference of `fieldtype`
mutable struct UndefField__
x::Union{}
UndefField__() = new()
end
f_infer_undef_field() = fieldtype(UndefField__, :x)
@test Base.return_types(f_infer_undef_field, ()) == Any[Type{Union{}}]
@test f_infer_undef_field() === Union{}
mutable struct HasAbstractlyTypedField
x::Union{Int,String}
end
f_infer_abstract_fieldtype() = fieldtype(HasAbstractlyTypedField, :x)
@test Base.return_types(f_infer_abstract_fieldtype, ()) == Any[Type{Union{Int,String}}]
let fieldtype_tfunc(@nospecialize args...) =
Core.Compiler.fieldtype_tfunc(Core.Compiler.fallback_lattice, args...),
fieldtype_nothrow(@nospecialize(s0), @nospecialize(name)) = Core.Compiler.fieldtype_nothrow(
Core.Compiler.SimpleInferenceLattice.instance, s0, name)
@test fieldtype_tfunc(Union{}, :x) == Union{}
@test fieldtype_tfunc(Union{Type{Int32}, Int32}, Const(:x)) == Union{}
@test fieldtype_tfunc(Union{Type{Base.RefValue{T}}, Type{Int32}} where {T<:Array}, Const(:x)) == Type{<:Array}
@test fieldtype_tfunc(Union{Type{Base.RefValue{T}}, Type{Int32}} where {T<:Real}, Const(:x)) == Type{<:Real}
@test fieldtype_tfunc(Union{Type{Base.RefValue{<:Array}}, Type{Int32}}, Const(:x)) == Type{Array}
@test fieldtype_tfunc(Union{Type{Base.RefValue{<:Real}}, Type{Int32}}, Const(:x)) == Const(Real)
@test fieldtype_tfunc(Const(Union{Base.RefValue{<:Real}, Type{Int32}}), Const(:x)) == Const(Real)
@test fieldtype_tfunc(Type{Union{Base.RefValue{T}, Type{Int32}}} where {T<:Real}, Const(:x)) == Type{<:Real}
@test fieldtype_tfunc(Type{<:Tuple}, Const(1)) == Any
@test fieldtype_tfunc(Type{<:Tuple}, Any) == Any
@test fieldtype_nothrow(Type{Base.RefValue{<:Real}}, Const(:x))
@test !fieldtype_nothrow(Type{Union{}}, Const(:x))
@test !fieldtype_nothrow(Union{Type{Base.RefValue{T}}, Int32} where {T<:Real}, Const(:x))
@test !fieldtype_nothrow(Union{Type{Base.RefValue{<:Real}}, Int32}, Const(:x))
@test fieldtype_nothrow(Const(Union{Base.RefValue{<:Real}, Int32}), Const(:x))
@test !fieldtype_nothrow(Type{Union{Base.RefValue{T}, Int32}} where {T<:Real}, Const(:x)) # improvable?
@test fieldtype_nothrow(Union{Type{Base.RefValue{T}}, Type{Base.RefValue{Any}}} where {T<:Real}, Const(:x))
@test fieldtype_nothrow(Union{Type{Base.RefValue{<:Real}}, Type{Base.RefValue{Any}}}, Const(:x))
@test fieldtype_nothrow(Const(Union{Base.RefValue{<:Real}, Base.RefValue{Any}}), Const(:x))
@test fieldtype_nothrow(Type{Union{Base.RefValue{T}, Base.RefValue{Any}}} where {T<:Real}, Const(:x))
@test !fieldtype_nothrow(Type{Tuple{}}, Const(1))
@test fieldtype_nothrow(Type{Tuple{Int}}, Const(1))
@test fieldtype_nothrow(Type{Tuple{Vararg{Int}}}, Const(1))
@test fieldtype_nothrow(Type{Tuple{Vararg{Int}}}, Const(2))
@test fieldtype_nothrow(Type{Tuple{Vararg{Int}}}, Const(42))
@test !fieldtype_nothrow(Type{<:Tuple{Vararg{Int}}}, Const(1))
@test TypeVar <: fieldtype_tfunc(Any, Any)
end
# issue #11480
@noinline f11480(x,y) = x
let A = Ref
function h11480(x::A{A{A{A{A{A{A{A{A{Int}}}}}}}}}) # enough for type_too_complex
y :: Tuple{Vararg{typeof(x)}} = (x,) # apply_type(Vararg, too_complex) => TypeVar(_,Vararg)
f(y[1], # fool getfield logic : Tuple{_<:Vararg}[1] => Vararg
1) # make it crash by construction of the signature Tuple{Vararg,Int}
end
@test !Base.isvarargtype(Base.return_types(h11480, (Any,))[1])
end
# Issue 19641
foo19641() = let a = 1.0
Core.Compiler.return_type(x -> x + a, Tuple{Float64})
end
@inferred foo19641()
test_fast_eq(a, b) = @fastmath a == b
test_fast_ne(a, b) = @fastmath a != b
test_fast_lt(a, b) = @fastmath a < b
test_fast_le(a, b) = @fastmath a <= b
@inferred test_fast_eq(1f0, 1f0)
@inferred test_fast_ne(1f0, 1f0)
@inferred test_fast_lt(1f0, 1f0)
@inferred test_fast_le(1f0, 1f0)
@inferred test_fast_eq(1.0, 1.0)
@inferred test_fast_ne(1.0, 1.0)
@inferred test_fast_lt(1.0, 1.0)
@inferred test_fast_le(1.0, 1.0)
abstract type AbstractMyType18457{T,F,G} end
struct MyType18457{T,F,G}<:AbstractMyType18457{T,F,G} end
tpara18457(::Type{AbstractMyType18457{I}}) where {I} = I
tpara18457(::Type{A}) where {A<:AbstractMyType18457} = tpara18457(supertype(A))
@test tpara18457(MyType18457{true}) === true
@testset "type inference error #19322" begin
Y_19322 = reshape(round.(Int, abs.(randn(5*1000))) .+ 1, 1000, 5)
function FOO_19322(Y::AbstractMatrix; frac::Float64=0.3, nbins::Int=100, n_sims::Int=100)
num_iters, num_chains = size(Y)
start_iters = unique([1; map(s->round(Int64, exp10(s)), range(log(10,100),
stop=log(10,num_iters/2),
length=nbins-1))])
result = zeros(Float64, 10, length(start_iters) * num_chains)
j=1
for c in 1:num_chains
for st in 1:length(start_iters)
n = length(start_iters[st]:num_iters)
idx1 = start_iters[st]:round(Int64, start_iters[st] + frac * n - 1)
idx2 = round(Int64, num_iters - frac * n + 1):num_iters
y1 = Y[idx1,c]
y2 = Y[idx2,c]
n_min = min(length(y1), length(y2))
X = [y1[1:n_min] y2[(end - n_min + 1):end]]
end
end
end
@test_nowarn FOO_19322(Y_19322)
end
randT_inferred_union() = rand(Bool) ? rand(Bool) ? 1 : 2.0 : nothing
function f_inferred_union()
b = randT_inferred_union()
if !(nothing !== b) === true
return f_inferred_union_nothing(b)
elseif (isa(b, Float64) === true) !== false
return f_inferred_union_float(b)
else
return f_inferred_union_int(b)
end
end
f_inferred_union_nothing(::Nothing) = 1
f_inferred_union_nothing(::Any) = "broken"
f_inferred_union_float(::Float64) = 2
f_inferred_union_float(::Any) = "broken"
f_inferred_union_int(::Int) = 3
f_inferred_union_int(::Any) = "broken"
@test @inferred(f_inferred_union()) in (1, 2, 3)
# issue #11015
mutable struct AT11015
f::Union{Bool,Function}
end
g11015(::Type{S}, ::S) where {S} = 1
f11015(a::AT11015) = g11015(Base.fieldtype(typeof(a), :f), true)
g11015(::Type{Bool}, ::Bool) = 2.0
@test Base.return_types(f11015, (AT11015,)) == Any[Int]
@test f11015(AT11015(true)) === 1
# better inference of apply (#20343)
f20343(::String, ::Int) = 1
f20343(::Int, ::String, ::Int, ::Int) = 2
f20343(::Int, ::Int, ::String, ::Int, ::Int, ::Int) = 3
f20343(::Int, ::Int, ::Int, ::String, ::Int, ::Int, ::Int, ::Int, ::Int, ::Int, ::Int, ::Int) = 4
f20343(::Union{Int,String}...) = Int8(5)
f20343(::Any...) = "no"
function g20343()
n = rand(1:3)
T = Union{Tuple{String, Int}, Tuple{Int, String, Int, Int}, Tuple{Int, Int, String, Int, Int, Int}}
i = ntuple(i -> n == i ? "" : 0, 2n)::T
f20343(i...)
end
@test Base.return_types(g20343, ()) == [Int]
function h20343()
n = rand(1:3)
T = Union{Tuple{String, Int, Int}, Tuple{Int, String, Int}, Tuple{Int, Int, String}}
i = ntuple(i -> n == i ? "" : 0, 3)::T
f20343(i..., i..., i..., i...)
end
@test Base.return_types(h20343, ()) == [Union{Int8, Int}]
function i20343()
f20343([1,2,3]..., 4)
end
@test Base.return_types(i20343, ()) == [Int8]
struct Foo20518 <: AbstractVector{Int}; end # issue #20518; inference assumed AbstractArrays
Base.getindex(::Foo20518, ::Int) = "oops" # not to lie about their element type
Base.axes(::Foo20518) = (Base.OneTo(4),)
foo20518(xs::Any...) = -1
foo20518(xs::Int...) = [0]
bar20518(xs) = sum(foo20518(xs...))
@test bar20518(Foo20518()) == -1
f19957(::Int) = Int8(1) # issue #19957, inference failure when splatting a number
f19957(::Int...) = Int16(1)
f19957(::Any...) = "no"
g19957(x) = f19957(x...)
@test Base.return_types(g19957, (Int,)) == Any[Int8]
# Inference for some type-level computation
fUnionAll(::Type{T}) where {T} = Type{S} where S <: T
@inferred fUnionAll(Real) == Type{T} where T <: Real
@inferred fUnionAll(Rational{T} where T <: AbstractFloat) == Type{T} where T<:(Rational{S} where S <: AbstractFloat)
# issue #20733
# run this test in a separate process to avoid interfering with `getindex`
let def = "Base.getindex(t::NTuple{3,NTuple{2,Int}}, i::Int, j::Int, k::Int) = (t[1][i], t[2][j], t[3][k])"
@test read(`$(Base.julia_cmd()) --startup-file=no -E "$def;test(t) = t[2,1,2];test(((3,4), (5,6), (7,8)))"`, String) ==
"(4, 5, 8)\n"
end
# issue #20267
mutable struct T20267{T}
inds::Vector{T}
end
# infinite type growth via lower bounds (formed by intersection)
f20267(x::T20267{T}, y::T) where (T) = f20267(Any[1][1], x.inds)
@test Base.return_types(f20267, (Any, Any)) == Any[Union{}]
#issue #21065, elision of _apply_iterate when splatted expression is not effect_free
function f21065(x,y)
println("x=$x, y=$y")
return x, y
end
g21065(x,y) = +(f21065(x,y)...)
function test_no_apply(expr::Expr)
return all(test_no_apply, expr.args)
end
function test_no_apply(ref::GlobalRef)
return ref.mod != Core || ref.name !== :_apply_iterate
end
test_no_apply(::Any) = true
@test all(test_no_apply, code_typed(g21065, Tuple{Int,Int})[1].first.code)
# issue #20033
# check return_type_tfunc for calls where no method matches
bcast_eltype_20033(f, A) = Core.Compiler.return_type(f, Tuple{eltype(A)})
err20033(x::Float64...) = prod(x)
@test bcast_eltype_20033(err20033, [1]) === Union{}
@test Base.return_types(bcast_eltype_20033, (typeof(err20033), Vector{Int},)) == Any[Type{Union{}}]
# return_type on builtins
@test Core.Compiler.return_type(tuple, Tuple{Int,Int8,Int}) === Tuple{Int,Int8,Int}
# issue #21088
@test Core.Compiler.return_type(typeof, Tuple{Int}) == Type{Int}
# Inference of constant svecs
@eval fsvecinf() = $(QuoteNode(Core.svec(Tuple{Int,Int}, Int)))[1]
@test only(Base.return_types(fsvecinf, Tuple{})) == Type{Tuple{Int,Int}}
# nfields tfunc on `DataType`
let f = ()->Val{nfields(DataType[Int][1])}
@test f() == Val{length(DataType.types)}
end