llvm/test/Bindings/OCaml/debuginfo.ml

   1 (* RUN: rm -rf %t && mkdir -p %t && cp %s %t/debuginfo.ml && cp %S/Utils/Testsuite.ml %t/Testsuite.ml
   2  * RUN: %ocamlc -g -w +A -package llvm.all_backends -package llvm.target -package llvm.analysis -package llvm.debuginfo -I %t/ -linkpkg %t/Testsuite.ml %t/debuginfo.ml -o %t/executable
   3  * RUN: %t/executable | FileCheck %s
   4  * RUN: %ocamlopt -g -w +A -package llvm.all_backends -package llvm.target -package llvm.analysis -package llvm.debuginfo -I %t/ -linkpkg %t/Testsuite.ml %t/debuginfo.ml -o %t/executable
   5  * RUN: %t/executable | FileCheck %s
   6  * XFAIL: vg_leak
   7  *)
   8
   9 open Testsuite
  10
  11 let context = Llvm.global_context ()
  12
  13 let filename = "di_test_file"
  14
  15 let directory = "di_test_dir"
  16
  17 let module_name = "di_test_module"
  18
  19 let null_metadata = Llvm_debuginfo.llmetadata_null ()
  20
  21 let string_of_metadata md =
  22   Llvm.string_of_llvalue (Llvm.metadata_as_value context md)
  23
  24 let stdout_metadata md = Printf.printf "%s\n" (string_of_metadata md)
  25
  26 let prepare_target llmod =
  27   Llvm_all_backends.initialize ();
  28   let triple = Llvm_target.Target.default_triple () in
  29   let lltarget = Llvm_target.Target.by_triple triple in
  30   let llmachine = Llvm_target.TargetMachine.create ~triple lltarget in
  31   let lldly =
  32     Llvm_target.DataLayout.as_string
  33       (Llvm_target.TargetMachine.data_layout llmachine)
  34   in
  35   let _ = Llvm.set_target_triple triple llmod in
  36   let _ = Llvm.set_data_layout lldly llmod in
  37   ()
  38
  39 let new_module () =
  40   let m = Llvm.create_module context module_name in
  41   let () = prepare_target m in
  42   m
  43
  44 let test_get_module () =
  45   group "module_level_tests";
  46   let m = new_module () in
  47   let cur_ver = Llvm_debuginfo.debug_metadata_version () in
  48   insist (cur_ver > 0);
  49   let m_ver = Llvm_debuginfo.get_module_debug_metadata_version m in
  50   (* We haven't added any debug info to the module *)
  51   insist (m_ver = 0);
  52   let dibuilder = Llvm_debuginfo.dibuilder m in
  53   let di_version_key = "Debug Info Version" in
  54   let ver =
  55     Llvm.value_as_metadata @@ Llvm.const_int (Llvm.i32_type context) cur_ver
  56   in
  57   let () =
  58     Llvm.add_module_flag m Llvm.ModuleFlagBehavior.Warning di_version_key ver
  59   in
  60   let file_di =
  61     Llvm_debuginfo.dibuild_create_file dibuilder ~filename ~directory
  62   in
  63   stdout_metadata file_di;
  64   (* CHECK: [[FILE_PTR:<0x[0-9a-f]*>]] = !DIFile(filename: "di_test_file", directory: "di_test_dir")
  65   *)
  66   insist
  67     ( Llvm_debuginfo.di_file_get_filename ~file:file_di = filename
  68     && Llvm_debuginfo.di_file_get_directory ~file:file_di = directory );
  69   insist
  70     ( Llvm_debuginfo.get_metadata_kind file_di
  71     = Llvm_debuginfo.MetadataKind.DIFileMetadataKind );
  72   let cu_di =
  73     Llvm_debuginfo.dibuild_create_compile_unit dibuilder
  74       Llvm_debuginfo.DWARFSourceLanguageKind.C89 ~file_ref:file_di
  75       ~producer:"TestGen" ~is_optimized:false ~flags:"" ~runtime_ver:0
  76       ~split_name:"" Llvm_debuginfo.DWARFEmissionKind.LineTablesOnly ~dwoid:0
  77       ~di_inlining:false ~di_profiling:false ~sys_root:"" ~sdk:""
  78   in
  79   stdout_metadata cu_di;
  80   (* CHECK: [[CMPUNIT_PTR:<0x[0-9a-f]*>]] = distinct !DICompileUnit(language: DW_LANG_C89, file: [[FILE_PTR]], producer: "TestGen", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, splitDebugInlining: false)
  81   *)
  82   insist
  83     ( Llvm_debuginfo.get_metadata_kind cu_di
  84     = Llvm_debuginfo.MetadataKind.DICompileUnitMetadataKind );
  85   let m_di =
  86     Llvm_debuginfo.dibuild_create_module dibuilder ~parent_ref:cu_di
  87       ~name:module_name ~config_macros:"" ~include_path:"" ~sys_root:""
  88   in
  89   insist
  90     ( Llvm_debuginfo.get_metadata_kind m_di
  91     = Llvm_debuginfo.MetadataKind.DIModuleMetadataKind );
  92   insist (Llvm_debuginfo.get_module_debug_metadata_version m = cur_ver);
  93   stdout_metadata m_di;
  94   (* CHECK: [[MODULE_PTR:<0x[0-9a-f]*>]] = !DIModule(scope: null, name: "di_test_module")
  95   *)
  96   (m, dibuilder, file_di, m_di)
  97
  98 let flags_zero = Llvm_debuginfo.diflags_get Llvm_debuginfo.DIFlag.Zero
  99
 100 let int_ty_di bits dibuilder =
 101   Llvm_debuginfo.dibuild_create_basic_type dibuilder ~name:"int"
 102     ~size_in_bits:bits ~encoding:0x05
 103     (* llvm::dwarf::DW_ATE_signed *) flags_zero
 104
 105 let test_get_function m dibuilder file_di m_di =
 106   group "function_level_tests";
 107
 108   (* Create a function of type "void foo (int)". *)
 109   let int_ty_di = int_ty_di 32 dibuilder in
 110   stdout_metadata int_ty_di;
 111   (* CHECK: [[INT32_PTR:<0x[0-9a-f]*>]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
 112   *)
 113   let param_types = [| null_metadata; int_ty_di |] in
 114   let fty_di =
 115     Llvm_debuginfo.dibuild_create_subroutine_type dibuilder ~file:file_di
 116       ~param_types flags_zero
 117   in
 118   insist
 119     ( Llvm_debuginfo.get_metadata_kind fty_di
 120     = Llvm_debuginfo.MetadataKind.DISubroutineTypeMetadataKind );
 121   (* To be able to print and verify the type array of the subroutine type,
 122    * since we have no way to access it from fty_di, we build it again. *)
 123   let fty_di_args =
 124     Llvm_debuginfo.dibuild_get_or_create_type_array dibuilder ~data:param_types
 125   in
 126   stdout_metadata fty_di_args;
 127   (* CHECK: [[FARGS_PTR:<0x[0-9a-f]*>]] = !{null, [[INT32_PTR]]}
 128   *)
 129   stdout_metadata fty_di;
 130   (* CHECK: [[SBRTNTY_PTR:<0x[0-9a-f]*>]] = !DISubroutineType(types: [[FARGS_PTR]])
 131   *)
 132   (* Let's create the LLVM-IR function now. *)
 133   let name = "tfun" in
 134   let fty =
 135     Llvm.function_type (Llvm.void_type context) [| Llvm.i32_type context |]
 136   in
 137   let f = Llvm.define_function name fty m in
 138   let f_di =
 139     Llvm_debuginfo.dibuild_create_function dibuilder ~scope:m_di ~name
 140       ~linkage_name:name ~file:file_di ~line_no:10 ~ty:fty_di
 141       ~is_local_to_unit:false ~is_definition:true ~scope_line:10
 142       ~flags:flags_zero ~is_optimized:false
 143   in
 144   stdout_metadata f_di;
 145   (* CHECK: [[SBPRG_PTR:<0x[0-9a-f]*>]] = distinct !DISubprogram(name: "tfun", linkageName: "tfun", scope: [[MODULE_PTR]], file: [[FILE_PTR]], line: 10, type: [[SBRTNTY_PTR]], scopeLine: 10, spFlags: DISPFlagDefinition, unit: [[CMPUNIT_PTR]], retainedNodes: {{<0x[0-9a-f]*>}})
 146   *)
 147   Llvm_debuginfo.set_subprogram f f_di;
 148   ( match Llvm_debuginfo.get_subprogram f with
 149   | Some f_di' -> insist (f_di = f_di')
 150   | None -> insist false );
 151   insist
 152     ( Llvm_debuginfo.get_metadata_kind f_di
 153     = Llvm_debuginfo.MetadataKind.DISubprogramMetadataKind );
 154   insist (Llvm_debuginfo.di_subprogram_get_line f_di = 10);
 155   (f, f_di)
 156
 157 let test_bbinstr f f_di file_di dibuilder =
 158   group "basic_block and instructions tests";
 159   (* Create this pattern:
 160    *   if (arg0 != 0) {
 161    *      foo(arg0);
 162    *   }
 163    *   return;
 164    *)
 165   let arg0 = (Llvm.params f).(0) in
 166   let builder = Llvm.builder_at_end context (Llvm.entry_block f) in
 167   let zero = Llvm.const_int (Llvm.i32_type context) 0 in
 168   let cmpi = Llvm.build_icmp Llvm.Icmp.Ne zero arg0 "cmpi" builder in
 169   let truebb = Llvm.append_block context "truebb" f in
 170   let falsebb = Llvm.append_block context "falsebb" f in
 171   let _ = Llvm.build_cond_br cmpi truebb falsebb builder in
 172   let foodecl =
 173     Llvm.declare_function "foo"
 174       (Llvm.element_type (Llvm.type_of f))
 175       (Llvm.global_parent f)
 176   in
 177   let _ =
 178     Llvm.position_at_end truebb builder;
 179     let scope =
 180       Llvm_debuginfo.dibuild_create_lexical_block dibuilder ~scope:f_di
 181         ~file:file_di ~line:9 ~column:4
 182     in
 183     let file_of_f_di = Llvm_debuginfo.di_scope_get_file ~scope:f_di in
 184     let file_of_scope = Llvm_debuginfo.di_scope_get_file ~scope in
 185     insist
 186       ( match (file_of_f_di, file_of_scope) with
 187       | Some file_of_f_di', Some file_of_scope' ->
 188           file_of_f_di' = file_di && file_of_scope' = file_di
 189       | _ -> false );
 190     let foocall = Llvm.build_call foodecl [| arg0 |] "" builder in
 191     let foocall_loc =
 192       Llvm_debuginfo.dibuild_create_debug_location context ~line:10 ~column:12
 193         ~scope
 194     in
 195     Llvm_debuginfo.instr_set_debug_loc foocall (Some foocall_loc);
 196     insist
 197       ( match Llvm_debuginfo.instr_get_debug_loc foocall with
 198       | Some foocall_loc' -> foocall_loc' = foocall_loc
 199       | None -> false );
 200     stdout_metadata scope;
 201     (* CHECK: [[BLOCK_PTR:<0x[0-9a-f]*>]] = distinct !DILexicalBlock(scope: [[SBPRG_PTR]], file: [[FILE_PTR]], line: 9, column: 4)
 202      *)
 203     stdout_metadata foocall_loc;
 204     (* CHECK: !DILocation(line: 10, column: 12, scope: [[BLOCK_PTR]])
 205      *)
 206     insist
 207       ( Llvm_debuginfo.di_location_get_scope ~location:foocall_loc = scope
 208       && Llvm_debuginfo.di_location_get_line ~location:foocall_loc = 10
 209       && Llvm_debuginfo.di_location_get_column ~location:foocall_loc = 12 );
 210     insist
 211       ( Llvm_debuginfo.get_metadata_kind foocall_loc
 212         = Llvm_debuginfo.MetadataKind.DILocationMetadataKind
 213       && Llvm_debuginfo.get_metadata_kind scope
 214          = Llvm_debuginfo.MetadataKind.DILexicalBlockMetadataKind );
 215     Llvm.build_br falsebb builder
 216   in
 217   let _ =
 218     Llvm.position_at_end falsebb builder;
 219     Llvm.build_ret_void builder
 220   in
 221   (* Printf.printf "%s\n" (Llvm.string_of_llmodule (Llvm.global_parent f)); *)
 222   ()
 223
 224 let test_global_variable_expression dibuilder f_di m_di =
 225   group "global variable expression tests";
 226   let cexpr_di =
 227     Llvm_debuginfo.dibuild_create_constant_value_expression dibuilder 0
 228   in
 229   stdout_metadata cexpr_di;
 230   (* CHECK: [[DICEXPR:!DIExpression\(DW_OP_constu, 0, DW_OP_stack_value\)]]
 231    *)
 232   insist
 233     ( Llvm_debuginfo.get_metadata_kind cexpr_di
 234     = Llvm_debuginfo.MetadataKind.DIExpressionMetadataKind );
 235   let ty = int_ty_di 64 dibuilder in
 236   stdout_metadata ty;
 237   (* CHECK: [[INT64TY_PTR:<0x[0-9a-f]*>]] = !DIBasicType(name: "int", size: 64, encoding: DW_ATE_signed)
 238    *)
 239   let gvexpr_di =
 240     Llvm_debuginfo.dibuild_create_global_variable_expression dibuilder
 241       ~scope:m_di ~name:"my_global" ~linkage:"" ~file:f_di ~line:5 ~ty
 242       ~is_local_to_unit:true ~expr:cexpr_di ~decl:null_metadata ~align_in_bits:0
 243   in
 244   insist
 245     ( Llvm_debuginfo.get_metadata_kind gvexpr_di
 246     = Llvm_debuginfo.MetadataKind.DIGlobalVariableExpressionMetadataKind );
 247   ( match
 248       Llvm_debuginfo.di_global_variable_expression_get_variable gvexpr_di
 249     with
 250   | Some gvexpr_var_di ->
 251       insist
 252         ( Llvm_debuginfo.get_metadata_kind gvexpr_var_di
 253         = Llvm_debuginfo.MetadataKind.DIGlobalVariableMetadataKind );
 254       stdout_metadata gvexpr_var_di
 255       (* CHECK: [[GV_PTR:<0x[0-9a-f]*>]] = distinct !DIGlobalVariable(name: "my_global", scope: [[MODULE_PTR]], file: [[FILE_PTR]], line: 5, type: [[INT64TY_PTR]], isLocal: true, isDefinition: true)
 256        *)
 257   | None -> insist false );
 258   stdout_metadata gvexpr_di;
 259   (* CHECK: [[GVEXP_PTR:<0x[0-9a-f]*>]] = !DIGlobalVariableExpression(var: [[GV_PTR]], expr: [[DICEXPR]])
 260    *)
 261   ()
 262
 263 let test_types dibuilder file_di m_di =
 264   group "type tests";
 265   let namespace_di =
 266     Llvm_debuginfo.dibuild_create_namespace dibuilder ~parent_ref:m_di
 267       ~name:"NameSpace1" ~export_symbols:false
 268   in
 269   stdout_metadata namespace_di;
 270   (* CHECK: [[NAMESPACE_PTR:<0x[0-9a-f]*>]] = !DINamespace(name: "NameSpace1", scope: [[MODULE_PTR]])
 271    *)
 272   let int64_ty_di = int_ty_di 64 dibuilder in
 273   let structty_args = [| int64_ty_di; int64_ty_di; int64_ty_di |] in
 274   let struct_ty_di =
 275     Llvm_debuginfo.dibuild_create_struct_type dibuilder ~scope:namespace_di
 276       ~name:"StructType1" ~file:file_di ~line_number:20 ~size_in_bits:192
 277       ~align_in_bits:0 flags_zero ~derived_from:null_metadata
 278       ~elements:structty_args Llvm_debuginfo.DWARFSourceLanguageKind.C89
 279       ~vtable_holder:null_metadata ~unique_id:"StructType1"
 280   in
 281   (* Since there's no way to fetch the element types which is now
 282    * a type array, we build that again for checking. *)
 283   let structty_di_eltypes =
 284     Llvm_debuginfo.dibuild_get_or_create_type_array dibuilder
 285       ~data:structty_args
 286   in
 287   stdout_metadata structty_di_eltypes;
 288   (* CHECK: [[STRUCTELT_PTR:<0x[0-9a-f]*>]] = !{[[INT64TY_PTR]], [[INT64TY_PTR]], [[INT64TY_PTR]]}
 289    *)
 290   stdout_metadata struct_ty_di;
 291   (* CHECK: [[STRUCT_PTR:<0x[0-9a-f]*>]] = !DICompositeType(tag: DW_TAG_structure_type, name: "StructType1", scope: [[NAMESPACE_PTR]], file: [[FILE_PTR]], line: 20, size: 192, elements: [[STRUCTELT_PTR]], identifier: "StructType1")
 292    *)
 293   insist
 294     ( Llvm_debuginfo.get_metadata_kind struct_ty_di
 295     = Llvm_debuginfo.MetadataKind.DICompositeTypeMetadataKind );
 296   let structptr_di =
 297     Llvm_debuginfo.dibuild_create_pointer_type dibuilder
 298       ~pointee_ty:struct_ty_di ~size_in_bits:192 ~align_in_bits:0
 299       ~address_space:0 ~name:""
 300   in
 301   stdout_metadata structptr_di;
 302   (* CHECK: [[STRUCTPTR_PTR:<0x[0-9a-f]*>]] = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: [[STRUCT_PTR]], size: 192, dwarfAddressSpace: 0)
 303    *)
 304   insist
 305     ( Llvm_debuginfo.get_metadata_kind structptr_di
 306     = Llvm_debuginfo.MetadataKind.DIDerivedTypeMetadataKind );
 307   let enumerator1 =
 308     Llvm_debuginfo.dibuild_create_enumerator dibuilder ~name:"Test_A" ~value:0
 309       ~is_unsigned:true
 310   in
 311   stdout_metadata enumerator1;
 312   (* CHECK: [[ENUMERATOR1_PTR:<0x[0-9a-f]*>]] = !DIEnumerator(name: "Test_A", value: 0, isUnsigned: true)
 313    *)
 314   let enumerator2 =
 315     Llvm_debuginfo.dibuild_create_enumerator dibuilder ~name:"Test_B" ~value:1
 316       ~is_unsigned:true
 317   in
 318   stdout_metadata enumerator2;
 319   (* CHECK: [[ENUMERATOR2_PTR:<0x[0-9a-f]*>]] = !DIEnumerator(name: "Test_B", value: 1, isUnsigned: true)
 320    *)
 321   let enumerator3 =
 322     Llvm_debuginfo.dibuild_create_enumerator dibuilder ~name:"Test_C" ~value:2
 323       ~is_unsigned:true
 324   in
 325   insist
 326     ( Llvm_debuginfo.get_metadata_kind enumerator1
 327       = Llvm_debuginfo.MetadataKind.DIEnumeratorMetadataKind
 328     && Llvm_debuginfo.get_metadata_kind enumerator2
 329        = Llvm_debuginfo.MetadataKind.DIEnumeratorMetadataKind
 330     && Llvm_debuginfo.get_metadata_kind enumerator3
 331        = Llvm_debuginfo.MetadataKind.DIEnumeratorMetadataKind );
 332   stdout_metadata enumerator3;
 333   (* CHECK: [[ENUMERATOR3_PTR:<0x[0-9a-f]*>]] = !DIEnumerator(name: "Test_C", value: 2, isUnsigned: true)
 334    *)
 335   let elements = [| enumerator1; enumerator2; enumerator3 |] in
 336   let enumeration_ty_di =
 337     Llvm_debuginfo.dibuild_create_enumeration_type dibuilder ~scope:namespace_di
 338       ~name:"EnumTest" ~file:file_di ~line_number:1 ~size_in_bits:64
 339       ~align_in_bits:0 ~elements ~class_ty:int64_ty_di
 340   in
 341   let elements_arr =
 342     Llvm_debuginfo.dibuild_get_or_create_array dibuilder ~data:elements
 343   in
 344   stdout_metadata elements_arr;
 345   (* CHECK: [[ELEMENTS_PTR:<0x[0-9a-f]*>]] = !{[[ENUMERATOR1_PTR]], [[ENUMERATOR2_PTR]], [[ENUMERATOR3_PTR]]}
 346    *)
 347   stdout_metadata enumeration_ty_di;
 348   (* CHECK: [[ENUMERATION_PTR:<0x[0-9a-f]*>]] = !DICompositeType(tag: DW_TAG_enumeration_type, name: "EnumTest", scope: [[NAMESPACE_PTR]], file: [[FILE_PTR]], line: 1, baseType: [[INT64TY_PTR]], size: 64, elements: [[ELEMENTS_PTR]])
 349    *)
 350   insist
 351     ( Llvm_debuginfo.get_metadata_kind enumeration_ty_di
 352     = Llvm_debuginfo.MetadataKind.DICompositeTypeMetadataKind );
 353   let int32_ty_di = int_ty_di 32 dibuilder in
 354   let class_mem1 =
 355     Llvm_debuginfo.dibuild_create_member_type dibuilder ~scope:namespace_di
 356       ~name:"Field1" ~file:file_di ~line_number:3 ~size_in_bits:32
 357       ~align_in_bits:0 ~offset_in_bits:0 flags_zero ~ty:int32_ty_di
 358   in
 359   stdout_metadata class_mem1;
 360   (* CHECK: [[MEMB1_PTR:<0x[0-9a-f]*>]] = !DIDerivedType(tag: DW_TAG_member, name: "Field1", scope: [[NAMESPACE_PTR]], file: [[FILE_PTR]], line: 3, baseType: [[INT32_PTR]], size: 32)
 361    *)
 362   insist (Llvm_debuginfo.di_type_get_name class_mem1 = "Field1");
 363   insist (Llvm_debuginfo.di_type_get_line class_mem1 = 3);
 364   let class_mem2 =
 365     Llvm_debuginfo.dibuild_create_member_type dibuilder ~scope:namespace_di
 366       ~name:"Field2" ~file:file_di ~line_number:4 ~size_in_bits:64
 367       ~align_in_bits:8 ~offset_in_bits:32 flags_zero ~ty:int64_ty_di
 368   in
 369   stdout_metadata class_mem2;
 370   (* CHECK: [[MEMB2_PTR:<0x[0-9a-f]*>]] = !DIDerivedType(tag: DW_TAG_member, name: "Field2", scope: [[NAMESPACE_PTR]], file: [[FILE_PTR]], line: 4, baseType: [[INT64TY_PTR]], size: 64, align: 8, offset: 32)
 371    *)
 372   insist (Llvm_debuginfo.di_type_get_offset_in_bits class_mem2 = 32);
 373   insist (Llvm_debuginfo.di_type_get_size_in_bits class_mem2 = 64);
 374   insist (Llvm_debuginfo.di_type_get_align_in_bits class_mem2 = 8);
 375   let class_elements = [| class_mem1; class_mem2 |] in
 376   insist
 377     ( Llvm_debuginfo.get_metadata_kind class_mem1
 378       = Llvm_debuginfo.MetadataKind.DIDerivedTypeMetadataKind
 379     && Llvm_debuginfo.get_metadata_kind class_mem2
 380        = Llvm_debuginfo.MetadataKind.DIDerivedTypeMetadataKind );
 381   stdout_metadata
 382     (Llvm_debuginfo.dibuild_get_or_create_type_array dibuilder
 383        ~data:class_elements);
 384   (* CHECK: [[CLASSMEM_PTRS:<0x[0-9a-f]*>]] = !{[[MEMB1_PTR]], [[MEMB2_PTR]]}
 385    *)
 386   let classty_di =
 387     Llvm_debuginfo.dibuild_create_class_type dibuilder ~scope:namespace_di
 388       ~name:"MyClass" ~file:file_di ~line_number:1 ~size_in_bits:96
 389       ~align_in_bits:0 ~offset_in_bits:0 flags_zero ~derived_from:null_metadata
 390       ~elements:class_elements ~vtable_holder:null_metadata
 391       ~template_params_node:null_metadata ~unique_identifier:"MyClass"
 392   in
 393   stdout_metadata classty_di;
 394   (* [[CLASS_PTR:<0x[0-9a-f]*>]] = !DICompositeType(tag: DW_TAG_structure_type, name: "MyClass", scope: [[NAMESPACE_PTR]], file: [[FILE_PTR]], line: 1, size: 96, elements: [[CLASSMEM_PTRS]], identifier: "MyClass")
 395    *)
 396   insist
 397     ( Llvm_debuginfo.get_metadata_kind classty_di
 398     = Llvm_debuginfo.MetadataKind.DICompositeTypeMetadataKind );
 399   ()
 400
 401 let () =
 402   let m, dibuilder, file_di, m_di = test_get_module () in
 403   let f, fun_di = test_get_function m dibuilder file_di m_di in
 404   let () = test_bbinstr f fun_di file_di dibuilder in
 405   let () = test_global_variable_expression dibuilder file_di m_di in
 406   let () = test_types dibuilder file_di m_di in
 407   Llvm_debuginfo.dibuild_finalize dibuilder;
 408   ( match Llvm_analysis.verify_module m with
 409   | Some err ->
 410       prerr_endline ("Verification of module failed: " ^ err);
 411       exit_status := 1
 412   | None -> () );
 413   exit !exit_status