aboutsummaryrefslogtreecommitdiffstats
path: root/test/Bindings/Ocaml/vmcore.ml
blob: 2597c6fa3a62af32e75862f2b130e64eea127ecc (plain)
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
(* RUN: %ocamlc -warn-error A llvm.cma llvm_analysis.cma llvm_bitwriter.cma %s -o %t
 * RUN: ./%t %t.bc
 * RUN: llvm-dis < %t.bc > %t.ll
 *)

(* Note: It takes several seconds for ocamlc to link an executable with
         libLLVMCore.a, so it's better to write a big test than a bunch of
         little ones. *)

open Llvm
open Llvm_bitwriter


(* Tiny unit test framework - really just to help find which line is busted *)
let exit_status = ref 0
let case_num = ref 0

let group name =
  case_num := 0;
  prerr_endline ("  " ^ name ^ "...")

let insist cond =
  incr case_num;
  if not cond then exit_status := 10;
  prerr_endline ("    " ^ (string_of_int !case_num) ^ if cond then ""
                                                              else " FAIL")

let suite name f =
  prerr_endline (name ^ ":");
  f ()


(*===-- Fixture -----------------------------------------------------------===*)

let filename = Sys.argv.(1)
let m = create_module filename


(*===-- Types -------------------------------------------------------------===*)

let test_types () =
  (* RUN: grep {Ty01.*void} < %t.ll
   *)
  group "void";
  insist (define_type_name "Ty01" void_type m);
  insist (TypeKind.Void == classify_type void_type);

  (* RUN: grep {Ty02.*i1} < %t.ll
   *)
  group "i1";
  insist (define_type_name "Ty02" i1_type m);
  insist (TypeKind.Integer == classify_type i1_type);

  (* RUN: grep {Ty03.*i32} < %t.ll
   *)
  group "i32";
  insist (define_type_name "Ty03" i32_type m);

  (* RUN: grep {Ty04.*i42} < %t.ll
   *)
  group "i42";
  let ty = integer_type 42 in
  insist (define_type_name "Ty04" ty m);

  (* RUN: grep {Ty05.*float} < %t.ll
   *)
  group "float";
  insist (define_type_name "Ty05" float_type m);
  insist (TypeKind.Float == classify_type float_type);

  (* RUN: grep {Ty06.*double} < %t.ll
   *)
  group "double";
  insist (define_type_name "Ty06" double_type m);
  insist (TypeKind.Double == classify_type double_type);

  (* RUN: grep {Ty07.*i32.*i1, double} < %t.ll
   *)
  group "function";
  let ty = function_type i32_type [| i1_type; double_type |] in
  insist (define_type_name "Ty07" ty m);
  insist (TypeKind.Function = classify_type ty);
  insist (not (is_var_arg ty));
  insist (i32_type == return_type ty);
  insist (double_type == (param_types ty).(1));
  
  (* RUN: grep {Ty08.*\.\.\.} < %t.ll
   *)
  group "var arg function";
  let ty = var_arg_function_type void_type [| i32_type |] in
  insist (define_type_name "Ty08" ty m);
  insist (is_var_arg ty);
  
  (* RUN: grep {Ty09.*\\\[7 x i8\\\]} < %t.ll
   *)
  group "array";
  let ty = array_type i8_type 7 in
  insist (define_type_name "Ty09" ty m);
  insist (7 = array_length ty);
  insist (i8_type == element_type ty);
  insist (TypeKind.Array == classify_type ty);
  
  begin group "pointer";
    (* RUN: grep {UnqualPtrTy.*float\*} < %t.ll
     *)
    let ty = pointer_type float_type in
    insist (define_type_name "UnqualPtrTy" ty m);
    insist (float_type == element_type ty);
    insist (0 == address_space ty);
    insist (TypeKind.Pointer == classify_type ty)
  end;
  
  begin group "qualified_pointer";
    (* RUN: grep {QualPtrTy.*i8.*3.*\*} < %t.ll
     *)
    let ty = qualified_pointer_type i8_type 3 in
    insist (define_type_name "QualPtrTy" ty m);
    insist (i8_type == element_type ty);
    insist (3 == address_space ty)
  end;
  
  (* RUN: grep {Ty11.*\<4 x i16\>} < %t.ll
   *)
  group "vector";
  let ty = vector_type i16_type 4 in
  insist (define_type_name "Ty11" ty m);
  insist (i16_type == element_type ty);
  insist (4 = vector_size ty);
  
  (* RUN: grep {Ty12.*opaque} < %t.ll
   *)
  group "opaque";
  let ty = opaque_type () in
  insist (define_type_name "Ty12" ty m);
  insist (ty == ty);
  insist (ty <> opaque_type ());
  
  (* RUN: grep -v {Ty13} < %t.ll
   *)
  group "delete";
  let ty = opaque_type () in
  insist (define_type_name "Ty13" ty m);
  delete_type_name "Ty13" m;
  
  (* RUN: grep -v {RecursiveTy.*RecursiveTy} < %t.ll
   *)
  group "recursive";
  let ty = opaque_type () in
  let th = handle_to_type ty in
  refine_type ty (pointer_type ty);
  let ty = type_of_handle th in
  insist (define_type_name "RecursiveTy" ty m);
  insist (ty == element_type ty)


(*===-- Constants ---------------------------------------------------------===*)

let test_constants () =
  (* RUN: grep {Const01.*i32.*-1} < %t.ll
   *)
  group "int";
  let c = const_int i32_type (-1) in
  ignore (define_global "Const01" c m);
  insist (i32_type = type_of c);
  insist (is_constant c);

  (* RUN: grep {Const02.*i64.*-1} < %t.ll
   *)
  group "sext int";
  let c = const_int i64_type (-1) in
  ignore (define_global "Const02" c m);
  insist (i64_type = type_of c);

  (* RUN: grep {Const03.*i64.*4294967295} < %t.ll
   *)
  group "zext int64";
  let c = const_of_int64 i64_type (Int64.of_string "4294967295") false in
  ignore (define_global "Const03" c m);
  insist (i64_type = type_of c);

  (* RUN: grep {Const04.*"cruel\\\\00world"} < %t.ll
   *)
  group "string";
  let c = const_string "cruel\000world" in
  ignore (define_global "Const04" c m);
  insist ((array_type i8_type 11) = type_of c);

  (* RUN: grep {Const05.*"hi\\\\00again\\\\00"} < %t.ll
   *)
  group "stringz";
  let c = const_stringz "hi\000again" in
  ignore (define_global "Const05" c m);
  insist ((array_type i8_type 9) = type_of c);

  (* RUN: grep {Const06.*3.1459} < %t.ll
   *)
  group "real";
  let c = const_float double_type 3.1459 in
  ignore (define_global "Const06" c m);
  insist (double_type = type_of c);
  
  let one = const_int i16_type 1 in
  let two = const_int i16_type 2 in
  let three = const_int i32_type 3 in
  let four = const_int i32_type 4 in
  
  (* RUN: grep {Const07.*\\\[ i32 3, i32 4 \\\]} < %t.ll
   *)
  group "array";
  let c = const_array i32_type [| three; four |] in
  ignore (define_global "Const07" c m);
  insist ((array_type i32_type 2) = (type_of c));
  
  (* RUN: grep {Const08.*< i16 1, i16 2.* >} < %t.ll
   *)
  group "vector";
  let c = const_vector [| one; two; one; two;
                          one; two; one; two |] in
  ignore (define_global "Const08" c m);
  insist ((vector_type i16_type 8) = (type_of c));
  
  (* RUN: grep {Const09.*\{ i16, i16, i32, i32 \} \{} < %t.ll
   *)
  group "structure";
  let c = const_struct [| one; two; three; four |] in
  ignore (define_global "Const09" c m);
  insist ((struct_type [| i16_type; i16_type; i32_type; i32_type |])
        = (type_of c));
  
  (* RUN: grep {Const10.*zeroinit} < %t.ll
   *)
  group "null";
  let c = const_null (packed_struct_type [| i1_type; i8_type;
                                            i64_type; double_type |]) in
  ignore (define_global "Const10" c m);
  
  (* RUN: grep {Const11.*-1} < %t.ll
   *)
  group "all ones";
  let c = const_all_ones i64_type in
  ignore (define_global "Const11" c m);
  
  (* RUN: grep {Const12.*undef} < %t.ll
   *)
  group "undef";
  let c = undef i1_type in
  ignore (define_global "Const12" c m);
  insist (i1_type = type_of c);
  insist (is_undef c);
  
  group "constant arithmetic";
  (* RUN: grep {ConstNeg.*sub} < %t.ll
   * RUN: grep {ConstNot.*xor} < %t.ll
   * RUN: grep {ConstAdd.*add} < %t.ll
   * RUN: grep {ConstSub.*sub} < %t.ll
   * RUN: grep {ConstMul.*mul} < %t.ll
   * RUN: grep {ConstUDiv.*udiv} < %t.ll
   * RUN: grep {ConstSDiv.*sdiv} < %t.ll
   * RUN: grep {ConstFDiv.*fdiv} < %t.ll
   * RUN: grep {ConstURem.*urem} < %t.ll
   * RUN: grep {ConstSRem.*srem} < %t.ll
   * RUN: grep {ConstFRem.*frem} < %t.ll
   * RUN: grep {ConstAnd.*and} < %t.ll
   * RUN: grep {ConstOr.*or} < %t.ll
   * RUN: grep {ConstXor.*xor} < %t.ll
   * RUN: grep {ConstICmp.*icmp} < %t.ll
   * RUN: grep {ConstFCmp.*fcmp} < %t.ll
   *)
  let void_ptr = pointer_type i8_type in
  let five = const_int i64_type 5 in
  let ffive = const_uitofp five double_type in
  let foldbomb_gv = define_global "FoldBomb" (const_null i8_type) m in
  let foldbomb = const_ptrtoint foldbomb_gv i64_type in
  let ffoldbomb = const_uitofp foldbomb double_type in
  ignore (define_global "ConstNeg" (const_neg foldbomb) m);
  ignore (define_global "ConstNot" (const_not foldbomb) m);
  ignore (define_global "ConstAdd" (const_add foldbomb five) m);
  ignore (define_global "ConstSub" (const_sub foldbomb five) m);
  ignore (define_global "ConstMul" (const_mul foldbomb five) m);
  ignore (define_global "ConstUDiv" (const_udiv foldbomb five) m);
  ignore (define_global "ConstSDiv" (const_sdiv foldbomb five) m);
  ignore (define_global "ConstFDiv" (const_fdiv ffoldbomb ffive) m);
  ignore (define_global "ConstURem" (const_urem foldbomb five) m);
  ignore (define_global "ConstSRem" (const_srem foldbomb five) m);
  ignore (define_global "ConstFRem" (const_frem ffoldbomb ffive) m);
  ignore (define_global "ConstAnd" (const_and foldbomb five) m);
  ignore (define_global "ConstOr" (const_or foldbomb five) m);
  ignore (define_global "ConstXor" (const_xor foldbomb five) m);
  ignore (define_global "ConstICmp" (const_icmp Icmp.Sle foldbomb five) m);
  ignore (define_global "ConstFCmp" (const_fcmp Fcmp.Ole ffoldbomb ffive) m);
  
  group "constant casts";
  (* RUN: grep {ConstTrunc.*trunc} < %t.ll
   * RUN: grep {ConstSExt.*sext} < %t.ll
   * RUN: grep {ConstZExt.*zext} < %t.ll
   * RUN: grep {ConstFPTrunc.*fptrunc} < %t.ll
   * RUN: grep {ConstFPExt.*fpext} < %t.ll
   * RUN: grep {ConstUIToFP.*uitofp} < %t.ll
   * RUN: grep {ConstSIToFP.*sitofp} < %t.ll
   * RUN: grep {ConstFPToUI.*fptoui} < %t.ll
   * RUN: grep {ConstFPToSI.*fptosi} < %t.ll
   * RUN: grep {ConstPtrToInt.*ptrtoint} < %t.ll
   * RUN: grep {ConstIntToPtr.*inttoptr} < %t.ll
   * RUN: grep {ConstBitCast.*bitcast} < %t.ll
   *)
  let i128_type = integer_type 128 in
  ignore (define_global "ConstTrunc" (const_trunc (const_add foldbomb five)
                                               i8_type) m);
  ignore (define_global "ConstSExt" (const_sext foldbomb i128_type) m);
  ignore (define_global "ConstZExt" (const_zext foldbomb i128_type) m);
  ignore (define_global "ConstFPTrunc" (const_fptrunc ffoldbomb float_type) m);
  ignore (define_global "ConstFPExt" (const_fpext ffoldbomb fp128_type) m);
  ignore (define_global "ConstUIToFP" (const_uitofp foldbomb double_type) m);
  ignore (define_global "ConstSIToFP" (const_sitofp foldbomb double_type) m);
  ignore (define_global "ConstFPToUI" (const_fptoui ffoldbomb i32_type) m);
  ignore (define_global "ConstFPToSI" (const_fptosi ffoldbomb i32_type) m);
  ignore (define_global "ConstPtrToInt" (const_ptrtoint 
    (const_gep (const_null (pointer_type i8_type))
               [| const_int i32_type 1 |])
    i32_type) m);
  ignore (define_global "ConstIntToPtr" (const_inttoptr (const_add foldbomb five)
                                                  void_ptr) m);
  ignore (define_global "ConstBitCast" (const_bitcast ffoldbomb i64_type) m);
  
  group "misc constants";
  (* RUN: grep {ConstSizeOf.*getelementptr.*null} < %t.ll
   * RUN: grep {ConstGEP.*getelementptr} < %t.ll
   * RUN: grep {ConstSelect.*select} < %t.ll
   * RUN: grep {ConstExtractElement.*extractelement} < %t.ll
   * RUN: grep {ConstInsertElement.*insertelement} < %t.ll
   * RUN: grep {ConstShuffleVector.*shufflevector} < %t.ll
   *)
  ignore (define_global "ConstSizeOf" (size_of (pointer_type i8_type)) m);
  ignore (define_global "ConstGEP" (const_gep foldbomb_gv [| five |]) m);
  ignore (define_global "ConstSelect" (const_select
    (const_icmp Icmp.Sle foldbomb five)
    (const_int i8_type (-1))
    (const_int i8_type 0)) m);
  let zero = const_int i32_type 0 in
  let one  = const_int i32_type 1 in
  ignore (define_global "ConstExtractElement" (const_extractelement
    (const_vector [| zero; one; zero; one |])
    (const_trunc foldbomb i32_type)) m);
  ignore (define_global "ConstInsertElement" (const_insertelement
    (const_vector [| zero; one; zero; one |])
    zero (const_trunc foldbomb i32_type)) m);
  ignore (define_global "ConstShuffleVector" (const_shufflevector
    (const_vector [| zero; one |])
    (const_vector [| one; zero |])
    (const_bitcast foldbomb (vector_type i32_type 2))) m)


(*===-- Global Values -----------------------------------------------------===*)

let test_global_values () =
  let (++) x f = f x; x in
  let zero32 = const_null i32_type in

  (* RUN: grep {GVal01} < %t.ll
   *)
  group "naming";
  let g = define_global "TEMPORARY" zero32 m in
  insist ("TEMPORARY" = value_name g);
  set_value_name "GVal01" g;
  insist ("GVal01" = value_name g);

  (* RUN: grep {GVal02.*linkonce} < %t.ll
   *)
  group "linkage";
  let g = define_global "GVal02" zero32 m ++
          set_linkage Linkage.Link_once in
  insist (Linkage.Link_once = linkage g);

  (* RUN: grep {GVal03.*Hanalei} < %t.ll
   *)
  group "section";
  let g = define_global "GVal03" zero32 m ++
          set_section "Hanalei" in
  insist ("Hanalei" = section g);
  
  (* RUN: grep {GVal04.*hidden} < %t.ll
   *)
  group "visibility";
  let g = define_global "GVal04" zero32 m ++
          set_visibility Visibility.Hidden in
  insist (Visibility.Hidden = visibility g);
  
  (* RUN: grep {GVal05.*align 128} < %t.ll
   *)
  group "alignment";
  let g = define_global "GVal05" zero32 m ++
          set_alignment 128 in
  insist (128 = alignment g)


(*===-- Global Variables --------------------------------------------------===*)

let test_global_variables () =
  let (++) x f = f x; x in
  let fourty_two32 = const_int i32_type 42 in

  (* RUN: grep {GVar01.*external} < %t.ll
   *)
  group "declarations";
  insist (None == lookup_global "GVar01" m);
  let g = declare_global i32_type "GVar01" m in
  insist (is_declaration g);
  insist (pointer_type float_type ==
            type_of (declare_global float_type "GVar01" m));
  insist (g == declare_global i32_type "GVar01" m);
  insist (match lookup_global "GVar01" m with Some x -> x = g
                                            | None -> false);
  
  (* RUN: grep {GVar02.*42} < %t.ll
   * RUN: grep {GVar03.*42} < %t.ll
   *)
  group "definitions";
  let g = define_global "GVar02" fourty_two32 m in
  let g2 = declare_global i32_type "GVar03" m ++
           set_initializer fourty_two32 in
  insist (not (is_declaration g));
  insist (not (is_declaration g2));
  insist ((global_initializer g) == (global_initializer g2));

  (* RUN: grep {GVar04.*thread_local} < %t.ll
   *)
  group "threadlocal";
  let g = define_global "GVar04" fourty_two32 m ++
          set_thread_local true in
  insist (is_thread_local g);

  (* RUN: grep -v {GVar05} < %t.ll
   *)
  group "delete";
  let g = define_global "GVar05" fourty_two32 m in
  delete_global g;

  (* RUN: grep -v {ConstGlobalVar.*constant} < %t.ll
   *)
  group "constant";
  let g = define_global "ConstGlobalVar" fourty_two32 m in
  insist (not (is_global_constant g));
  set_global_constant true g;
  insist (is_global_constant g)


(*===-- Functions ---------------------------------------------------------===*)

let test_functions () =
  let ty = function_type i32_type [| i32_type; i64_type |] in
  let ty2 = function_type i8_type [| i8_type; i64_type |] in
  
  (* RUN: grep {declare i32 @Fn1\(i32, i64\)} < %t.ll
   *)
  group "declare";
  insist (None = lookup_function "Fn1" m);
  let fn = declare_function "Fn1" ty m in
  insist (pointer_type ty = type_of fn);
  insist (is_declaration fn);
  insist (0 = Array.length (basic_blocks fn));
  insist (pointer_type ty2 == type_of (declare_function "Fn1" ty2 m));
  insist (fn == declare_function "Fn1" ty m);
  insist (None <> lookup_function "Fn1" m);
  insist (match lookup_function "Fn1" m with Some x -> x = fn
                                           | None -> false);
  
  (* RUN: grep -v {Fn2} < %t.ll
   *)
  group "delete";
  let fn = declare_function "Fn2" ty m in
  delete_function fn;
  
  (* RUN: grep {define.*Fn3} < %t.ll
   *)
  group "define";
  let fn = define_function "Fn3" ty m in
  insist (not (is_declaration fn));
  insist (1 = Array.length (basic_blocks fn));
  ignore (build_unreachable (builder_at_end (entry_block fn)));
  
  (* RUN: grep {define.*Fn4.*Param1.*Param2} < %t.ll
   *)
  group "params";
  let fn = define_function "Fn4" ty m in
  let params = params fn in
  insist (2 = Array.length params);
  insist (params.(0) = param fn 0);
  insist (params.(1) = param fn 1);
  insist (i32_type = type_of params.(0));
  insist (i64_type = type_of params.(1));
  set_value_name "Param1" params.(0);
  set_value_name "Param2" params.(1);
  ignore (build_unreachable (builder_at_end (entry_block fn)));
  
  (* RUN: grep {fastcc.*Fn5} < %t.ll
   *)
  group "callconv";
  let fn = define_function "Fn5" ty m in
  insist (CallConv.c = function_call_conv fn);
  set_function_call_conv CallConv.fast fn;
  insist (CallConv.fast = function_call_conv fn);
  ignore (build_unreachable (builder_at_end (entry_block fn)));
  
  begin group "collector";
    (* RUN: grep {Fn6.*gc.*shadowstack} < %t.ll
     *)
    let fn = define_function "Fn6" ty m in
    insist (None = collector fn);
    set_collector (Some "ocaml") fn;
    insist (Some "ocaml" = collector fn);
    set_collector None fn;
    insist (None = collector fn);
    set_collector (Some "shadowstack") fn;
    ignore (build_unreachable (builder_at_end (entry_block fn)));
  end


(*===-- Basic Blocks ------------------------------------------------------===*)

let test_basic_blocks () =
  let ty = function_type void_type [| |] in
  
  (* RUN: grep {Bb1} < %t.ll
   *)
  group "entry";
  let fn = declare_function "X" ty m in
  let bb = append_block "Bb1" fn in
  insist (bb = entry_block fn);
  ignore (build_unreachable (builder_at_end bb));
  
  (* RUN: grep -v Bb2 < %t.ll
   *)
  group "delete";
  let fn = declare_function "X2" ty m in
  let bb = append_block "Bb2" fn in
  delete_block bb;
  
  group "insert";
  let fn = declare_function "X3" ty m in
  let bbb = append_block "b" fn in
  let bba = insert_block "a" bbb in
  insist ([| bba; bbb |] = basic_blocks fn);
  ignore (build_unreachable (builder_at_end bba));
  ignore (build_unreachable (builder_at_end bbb));
  
  (* RUN: grep Bb3 < %t.ll
   *)
  group "name/value";
  let fn = define_function "X4" ty m in
  let bb = entry_block fn in
  ignore (build_unreachable (builder_at_end bb));
  let bbv = value_of_block bb in
  set_value_name "Bb3" bbv;
  insist ("Bb3" = value_name bbv);
  
  group "casts";
  let fn = define_function "X5" ty m in
  let bb = entry_block fn in
  ignore (build_unreachable (builder_at_end bb));
  insist (bb = block_of_value (value_of_block bb));
  insist (value_is_block (value_of_block bb));
  insist (not (value_is_block (const_null i32_type)))


(*===-- Builder -----------------------------------------------------------===*)

let test_builder () =
  let (++) x f = f x; x in
  
  group "ret void";
  begin
    (* RUN: grep {ret void} < %t.ll
     *)
    let fty = function_type void_type [| |] in
    let fn = declare_function "X6" fty m in
    let b = builder_at_end (append_block "Bb01" fn) in
    ignore (build_ret_void b)
  end;
  
  (* The rest of the tests will use one big function. *)
  let fty = function_type i32_type [| i32_type; i32_type |] in
  let fn = define_function "X7" fty m in
  let atentry = builder_at_end (entry_block fn) in
  let p1 = param fn 0 ++ set_value_name "P1" in
  let p2 = param fn 1 ++ set_value_name "P2" in
  let f1 = build_uitofp p1 float_type "F1" atentry in
  let f2 = build_uitofp p2 float_type "F2" atentry in
  
  let bb00 = append_block "Bb00" fn in
  ignore (build_unreachable (builder_at_end bb00));
  
  group "ret"; begin
    (* RUN: grep {ret.*P1} < %t.ll
     *)
    let ret = build_ret p1 atentry in
    position_before ret atentry
  end;
  
  group "br"; begin
    (* RUN: grep {br.*Bb02} < %t.ll
     *)
    let bb02 = append_block "Bb02" fn in
    let b = builder_at_end bb02 in
    ignore (build_br bb02 b)
  end;
  
  group "cond_br"; begin
    (* RUN: grep {br.*Inst01.*Bb03.*Bb00} < %t.ll
     *)
    let bb03 = append_block "Bb03" fn in
    let b = builder_at_end bb03 in
    let cond = build_trunc p1 i1_type "Inst01" b in
    ignore (build_cond_br cond bb03 bb00 b)
  end;
  
  (* TODO: Switch *)
  
  group "invoke"; begin
    (* RUN: grep {Inst02.*invoke.*P1.*P2} < %t.ll
     * RUN: grep {to.*Bb04.*unwind.*Bb00} < %t.ll
     *)
    let bb04 = append_block "Bb04" fn in
    let b = builder_at_end bb04 in
    ignore (build_invoke fn [| p1; p2 |] bb04 bb00 "Inst02" b)
  end;
  
  group "unwind"; begin
    (* RUN: grep {unwind} < %t.ll
     *)
    let bb05 = append_block "Bb05" fn in
    let b = builder_at_end bb05 in
    ignore (build_unwind b)
  end;
  
  group "unreachable"; begin
    (* RUN: grep {unreachable} < %t.ll
     *)
    let bb06 = append_block "Bb06" fn in
    let b = builder_at_end bb06 in
    ignore (build_unreachable b)
  end;
  
  group "arithmetic"; begin
    let bb07 = append_block "Bb07" fn in
    let b = builder_at_end bb07 in
    
    (* RUN: grep {Inst03.*add.*P1.*P2} < %t.ll
     * RUN: grep {Inst04.*sub.*P1.*Inst03} < %t.ll
     * RUN: grep {Inst05.*mul.*P1.*Inst04} < %t.ll
     * RUN: grep {Inst06.*udiv.*P1.*Inst05} < %t.ll
     * RUN: grep {Inst07.*sdiv.*P1.*Inst06} < %t.ll
     * RUN: grep {Inst08.*fdiv.*F1.*F2} < %t.ll
     * RUN: grep {Inst09.*urem.*P1.*Inst07} < %t.ll
     * RUN: grep {Inst10.*srem.*P1.*Inst09} < %t.ll
     * RUN: grep {Inst11.*frem.*F1.*Inst08} < %t.ll
     * RUN: grep {Inst12.*shl.*P1.*Inst10} < %t.ll
     * RUN: grep {Inst13.*lshr.*P1.*Inst12} < %t.ll
     * RUN: grep {Inst14.*ashr.*P1.*Inst13} < %t.ll
     * RUN: grep {Inst15.*and.*P1.*Inst14} < %t.ll
     * RUN: grep {Inst16.*or.*P1.*Inst15} < %t.ll
     * RUN: grep {Inst17.*xor.*P1.*Inst16} < %t.ll
     * RUN: grep {Inst18.*sub.*0.*Inst17} < %t.ll
     * RUN: grep {Inst19.*xor.*Inst18.*-1} < %t.ll
     *)
    let inst03 = build_add  p1 p2     "Inst03" b in
    let inst04 = build_sub  p1 inst03 "Inst04" b in
    let inst05 = build_mul  p1 inst04 "Inst05" b in
    let inst06 = build_udiv p1 inst05 "Inst06" b in
    let inst07 = build_sdiv p1 inst06 "Inst07" b in
    let inst08 = build_fdiv f1 f2     "Inst08" b in
    let inst09 = build_urem p1 inst07 "Inst09" b in
    let inst10 = build_srem p1 inst09 "Inst10" b in
          ignore(build_frem f1 inst08 "Inst11" b);
    let inst12 = build_shl  p1 inst10 "Inst12" b in
    let inst13 = build_lshr p1 inst12 "Inst13" b in
    let inst14 = build_ashr p1 inst13 "Inst14" b in
    let inst15 = build_and  p1 inst14 "Inst15" b in
    let inst16 = build_or   p1 inst15 "Inst16" b in
    let inst17 = build_xor  p1 inst16 "Inst17" b in
    let inst18 = build_neg  inst17    "Inst18" b in
         ignore (build_not  inst18    "Inst19" b);
         ignore (build_unreachable b)
  end;
  
  group "memory"; begin
    let bb08 = append_block "Bb08" fn in
    let b = builder_at_end bb08 in
    
    (* RUN: grep {Inst20.*malloc.*i8	} < %t.ll
     * RUN: grep {Inst21.*malloc.*i8.*P1} < %t.ll
     * RUN: grep {Inst22.*alloca.*i32	} < %t.ll
     * RUN: grep {Inst23.*alloca.*i32.*P2} < %t.ll
     * RUN: grep {free.*Inst20} < %t.ll
     * RUN: grep {Inst25.*load.*Inst21} < %t.ll
     * RUN: grep {store.*P2.*Inst22} < %t.ll
     * RUN: grep {Inst27.*getelementptr.*Inst23.*P2} < %t.ll
     *)
    let inst20 = build_malloc i8_type "Inst20" b in
    let inst21 = build_array_malloc i8_type p1 "Inst21" b in
    let inst22 = build_alloca i32_type "Inst22" b in
    let inst23 = build_array_alloca i32_type p2 "Inst23" b in
          ignore(build_free inst20 b);
          ignore(build_load inst21 "Inst25" b);
          ignore(build_store p2 inst22 b);
          ignore(build_gep inst23 [| p2 |] "Inst27" b);
          ignore(build_unreachable b)
  end;
  
  group "casts"; begin
    let void_ptr = pointer_type i8_type in
    
    (* RUN: grep {Inst28.*trunc.*P1.*i8} < %t.ll
     * RUN: grep {Inst29.*zext.*Inst28.*i32} < %t.ll
     * RUN: grep {Inst30.*sext.*Inst29.*i64} < %t.ll
     * RUN: grep {Inst31.*uitofp.*Inst30.*float} < %t.ll
     * RUN: grep {Inst32.*sitofp.*Inst29.*double} < %t.ll
     * RUN: grep {Inst33.*fptoui.*Inst31.*i32} < %t.ll
     * RUN: grep {Inst34.*fptosi.*Inst32.*i64} < %t.ll
     * RUN: grep {Inst35.*fptrunc.*Inst32.*float} < %t.ll
     * RUN: grep {Inst36.*fpext.*Inst35.*double} < %t.ll
     * RUN: grep {Inst37.*inttoptr.*P1.*i8\*} < %t.ll
     * RUN: grep {Inst38.*ptrtoint.*Inst37.*i64} < %t.ll
     * RUN: grep {Inst39.*bitcast.*Inst38.*double} < %t.ll
     *)
    let inst28 = build_trunc p1 i8_type "Inst28" atentry in
    let inst29 = build_zext inst28 i32_type "Inst29" atentry in
    let inst30 = build_sext inst29 i64_type "Inst30" atentry in
    let inst31 = build_uitofp inst30 float_type "Inst31" atentry in
    let inst32 = build_sitofp inst29 double_type "Inst32" atentry in
          ignore(build_fptoui inst31 i32_type "Inst33" atentry);
          ignore(build_fptosi inst32 i64_type "Inst34" atentry);
    let inst35 = build_fptrunc inst32 float_type "Inst35" atentry in
          ignore(build_fpext inst35 double_type "Inst36" atentry);
    let inst37 = build_inttoptr p1 void_ptr "Inst37" atentry in
    let inst38 = build_ptrtoint inst37 i64_type "Inst38" atentry in
          ignore(build_bitcast inst38 double_type "Inst39" atentry)
  end;
  
  group "comparisons"; begin
    (* RUN: grep {Inst40.*icmp.*ne.*P1.*P2} < %t.ll
     * RUN: grep {Inst41.*icmp.*sle.*P2.*P1} < %t.ll
     * RUN: grep {Inst42.*fcmp.*false.*F1.*F2} < %t.ll
     * RUN: grep {Inst43.*fcmp.*true.*F2.*F1} < %t.ll
     *)
    ignore (build_icmp Icmp.Ne    p1 p2 "Inst40" atentry);
    ignore (build_icmp Icmp.Sle   p2 p1 "Inst41" atentry);
    ignore (build_fcmp Fcmp.False f1 f2 "Inst42" atentry);
    ignore (build_fcmp Fcmp.True  f2 f1 "Inst43" atentry)
  end;
  
  group "miscellaneous"; begin
    (* RUN: grep {Inst45.*call.*P2.*P1} < %t.ll
     * RUN: grep {Inst47.*select.*Inst46.*P1.*P2} < %t.ll
     * RUN: grep {Inst48.*va_arg.*null.*i32} < %t.ll
     * RUN: grep {Inst49.*extractelement.*Vec1.*P2} < %t.ll
     * RUN: grep {Inst50.*insertelement.*Vec1.*P1.*P2} < %t.ll
     * RUN: grep {Inst51.*shufflevector.*Vec1.*Vec2.*1.*1.*0.*0} < %t.ll
     *)
         ignore (build_call fn [| p2; p1 |] "Inst45" atentry);
    let inst46 = build_icmp Icmp.Eq p1 p2 "Inst46" atentry in
         ignore (build_select inst46 p1 p2 "Inst47" atentry);
         ignore (build_va_arg
                  (const_null (pointer_type (pointer_type i8_type)))
                  i32_type "Inst48" atentry);
    
    (* Set up some vector vregs. *)
    let one  = const_int i32_type 1 in
    let zero = const_int i32_type 0 in
    let t1 = const_vector [| one; zero; one; zero |] in
    let t2 = const_vector [| zero; one; zero; one |] in
    let t3 = const_vector [| one; one; zero; zero |] in
    let vec1 = build_insertelement t1 p1 p2 "Vec1" atentry in
    let vec2 = build_insertelement t2 p1 p2 "Vec2" atentry in
    
    ignore (build_extractelement vec1 p2 "Inst49" atentry);
    ignore (build_insertelement vec1 p1 p2 "Inst50" atentry);
    ignore (build_shufflevector vec1 vec2 t3 "Inst51" atentry);
  end;
  
  group "phi"; begin
    (* RUN: grep {PhiNode.*P1.*PhiBlock1.*P2.*PhiBlock2} < %t.ll
     *)
    let b1 = append_block "PhiBlock1" fn in
    let b2 = append_block "PhiBlock2" fn in
    
    let jb = append_block "PhiJoinBlock" fn in
    ignore (build_br jb (builder_at_end b1));
    ignore (build_br jb (builder_at_end b2));
    let at_jb = builder_at_end jb in
    
    let phi = build_phi [(p1, b1)] "PhiNode" at_jb in
    insist ([(p1, b1)] = incoming phi);
    
    add_incoming (p2, b2) phi;
    insist ([(p1, b1); (p2, b2)] = incoming phi);
    
    ignore (build_unreachable at_jb);
  end


(*===-- Module Provider ---------------------------------------------------===*)

let test_module_provider () =
  let m = create_module "test" in
  let mp = ModuleProvider.create m in
  ModuleProvider.dispose mp


(*===-- Writer ------------------------------------------------------------===*)

let test_writer () =
  group "valid";
  insist (match Llvm_analysis.verify_module m with
          | None -> true
          | Some msg -> prerr_string msg; false);

  group "writer";
  insist (write_bitcode_file m filename);
  
  dispose_module m


(*===-- Driver ------------------------------------------------------------===*)

let _ =
  suite "types"            test_types;
  suite "constants"        test_constants;
  suite "global values"    test_global_values;
  suite "global variables" test_global_variables;
  suite "functions"        test_functions;
  suite "basic blocks"     test_basic_blocks;
  suite "builder"          test_builder;
  suite "module provider"  test_module_provider;
  suite "writer"           test_writer;
  exit !exit_status