Coverage Report

Created: 2017-10-03 07:32

/Users/buildslave/jenkins/sharedspace/clang-stage2-coverage-R@2/llvm/lib/IR/DIBuilder.cpp
Line
Count
Source (jump to first uncovered line)
1
//===--- DIBuilder.cpp - Debug Information Builder ------------------------===//
2
//
3
//                     The LLVM Compiler Infrastructure
4
//
5
// This file is distributed under the University of Illinois Open Source
6
// License. See LICENSE.TXT for details.
7
//
8
//===----------------------------------------------------------------------===//
9
//
10
// This file implements the DIBuilder.
11
//
12
//===----------------------------------------------------------------------===//
13
14
#include "llvm/IR/DIBuilder.h"
15
#include "LLVMContextImpl.h"
16
#include "llvm/ADT/STLExtras.h"
17
#include "llvm/BinaryFormat/Dwarf.h"
18
#include "llvm/IR/Constants.h"
19
#include "llvm/IR/DebugInfo.h"
20
#include "llvm/IR/IntrinsicInst.h"
21
#include "llvm/IR/Module.h"
22
#include "llvm/Support/Debug.h"
23
24
using namespace llvm;
25
using namespace llvm::dwarf;
26
27
cl::opt<bool>
28
    UseDbgAddr("use-dbg-addr",
29
                llvm::cl::desc("Use llvm.dbg.addr for all local variables"),
30
                cl::init(false));
31
32
DIBuilder::DIBuilder(Module &m, bool AllowUnresolvedNodes)
33
  : M(m), VMContext(M.getContext()), CUNode(nullptr),
34
      DeclareFn(nullptr), ValueFn(nullptr),
35
5.28M
      AllowUnresolvedNodes(AllowUnresolvedNodes) {}
36
37
35.2k
void DIBuilder::trackIfUnresolved(MDNode *N) {
38
35.2k
  if (!N)
39
0
    return;
40
35.2k
  
if (35.2k
N->isResolved()35.2k
)
41
33.2k
    return;
42
1.91k
43
35.2k
  assert(AllowUnresolvedNodes && "Cannot handle unresolved nodes");
44
1.91k
  UnresolvedNodes.emplace_back(N);
45
1.91k
}
46
47
45.0k
void DIBuilder::finalizeSubprogram(DISubprogram *SP) {
48
45.0k
  MDTuple *Temp = SP->getVariables().get();
49
45.0k
  if (
!Temp || 45.0k
!Temp->isTemporary()45.0k
)
50
22.4k
    return;
51
22.5k
52
22.5k
  SmallVector<Metadata *, 4> Variables;
53
22.5k
54
22.5k
  auto PV = PreservedVariables.find(SP);
55
22.5k
  if (PV != PreservedVariables.end())
56
27
    Variables.append(PV->second.begin(), PV->second.end());
57
45.0k
58
45.0k
  DINodeArray AV = getOrCreateArray(Variables);
59
45.0k
  TempMDTuple(Temp)->replaceAllUsesWith(AV.get());
60
45.0k
}
61
62
1.36k
void DIBuilder::finalize() {
63
1.36k
  if (
!CUNode1.36k
) {
64
0
    assert(!AllowUnresolvedNodes &&
65
0
           "creating type nodes without a CU is not supported");
66
0
    return;
67
0
  }
68
1.36k
69
1.36k
  CUNode->replaceEnumTypes(MDTuple::get(VMContext, AllEnumTypes));
70
1.36k
71
1.36k
  SmallVector<Metadata *, 16> RetainValues;
72
1.36k
  // Declarations and definitions of the same type may be retained. Some
73
1.36k
  // clients RAUW these pairs, leaving duplicates in the retained types
74
1.36k
  // list. Use a set to remove the duplicates while we transform the
75
1.36k
  // TrackingVHs back into Values.
76
1.36k
  SmallPtrSet<Metadata *, 16> RetainSet;
77
1.72k
  for (unsigned I = 0, E = AllRetainTypes.size(); 
I < E1.72k
;
I++357
)
78
357
    
if (357
RetainSet.insert(AllRetainTypes[I]).second357
)
79
295
      RetainValues.push_back(AllRetainTypes[I]);
80
1.36k
81
1.36k
  if (!RetainValues.empty())
82
104
    CUNode->replaceRetainedTypes(MDTuple::get(VMContext, RetainValues));
83
1.36k
84
1.36k
  DISubprogramArray SPs = MDTuple::get(VMContext, AllSubprograms);
85
1.36k
  for (auto *SP : SPs)
86
22.5k
    finalizeSubprogram(SP);
87
1.36k
  for (auto *N : RetainValues)
88
295
    
if (auto *295
SP295
= dyn_cast<DISubprogram>(N))
89
31
      finalizeSubprogram(SP);
90
1.36k
91
1.36k
  if (!AllGVs.empty())
92
160
    CUNode->replaceGlobalVariables(MDTuple::get(VMContext, AllGVs));
93
1.36k
94
1.36k
  if (!AllImportedModules.empty())
95
13
    CUNode->replaceImportedEntities(MDTuple::get(
96
13
        VMContext, SmallVector<Metadata *, 16>(AllImportedModules.begin(),
97
13
                                               AllImportedModules.end())));
98
1.36k
99
23
  for (const auto &I : AllMacrosPerParent) {
100
23
    // DIMacroNode's with nullptr parent are DICompileUnit direct children.
101
23
    if (
!I.first23
) {
102
5
      CUNode->replaceMacros(MDTuple::get(VMContext, I.second.getArrayRef()));
103
5
      continue;
104
5
    }
105
18
    // Otherwise, it must be a temporary DIMacroFile that need to be resolved.
106
18
    auto *TMF = cast<DIMacroFile>(I.first);
107
18
    auto *MF = DIMacroFile::get(VMContext, dwarf::DW_MACINFO_start_file,
108
18
                                TMF->getLine(), TMF->getFile(),
109
18
                                getOrCreateMacroArray(I.second.getArrayRef()));
110
18
    replaceTemporary(llvm::TempDIMacroNode(TMF), MF);
111
18
  }
112
1.36k
113
1.36k
  // Now that all temp nodes have been replaced or deleted, resolve remaining
114
1.36k
  // cycles.
115
1.36k
  for (const auto &N : UnresolvedNodes)
116
1.91k
    
if (1.91k
N && 1.91k
!N->isResolved()1.88k
)
117
0
      N->resolveCycles();
118
1.36k
  UnresolvedNodes.clear();
119
1.36k
120
1.36k
  // Can't handle unresolved nodes anymore.
121
1.36k
  AllowUnresolvedNodes = false;
122
1.36k
}
123
124
/// If N is compile unit return NULL otherwise return N.
125
29.6k
static DIScope *getNonCompileUnitScope(DIScope *N) {
126
29.6k
  if (
!N || 29.6k
isa<DICompileUnit>(N)29.6k
)
127
1.26k
    return nullptr;
128
28.4k
  return cast<DIScope>(N);
129
28.4k
}
130
131
DICompileUnit *DIBuilder::createCompileUnit(
132
    unsigned Lang, DIFile *File, StringRef Producer, bool isOptimized,
133
    StringRef Flags, unsigned RunTimeVer, StringRef SplitName,
134
    DICompileUnit::DebugEmissionKind Kind, uint64_t DWOId,
135
1.37k
    bool SplitDebugInlining, bool DebugInfoForProfiling, bool GnuPubnames) {
136
1.37k
137
1.37k
  assert(((Lang <= dwarf::DW_LANG_Fortran08 && Lang >= dwarf::DW_LANG_C89) ||
138
1.37k
          (Lang <= dwarf::DW_LANG_hi_user && Lang >= dwarf::DW_LANG_lo_user)) &&
139
1.37k
         "Invalid Language tag");
140
1.37k
141
1.37k
  assert(!CUNode && "Can only make one compile unit per DIBuilder instance");
142
1.37k
  CUNode = DICompileUnit::getDistinct(
143
1.37k
      VMContext, Lang, File, Producer, isOptimized, Flags, RunTimeVer,
144
1.37k
      SplitName, Kind, nullptr, nullptr, nullptr, nullptr, nullptr, DWOId,
145
1.37k
      SplitDebugInlining, DebugInfoForProfiling, GnuPubnames);
146
1.37k
147
1.37k
  // Create a named metadata so that it is easier to find cu in a module.
148
1.37k
  NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.cu");
149
1.37k
  NMD->addOperand(CUNode);
150
1.37k
  trackIfUnresolved(CUNode);
151
1.37k
  return CUNode;
152
1.37k
}
153
154
static DIImportedEntity *
155
createImportedModule(LLVMContext &C, dwarf::Tag Tag, DIScope *Context,
156
                     Metadata *NS, DIFile *File, unsigned Line, StringRef Name,
157
52
                     SmallVectorImpl<TrackingMDNodeRef> &AllImportedModules) {
158
52
  if (Line)
159
52
    assert(File && "Source location has line number but no file");
160
52
  unsigned EntitiesCount = C.pImpl->DIImportedEntitys.size();
161
52
  auto *M =
162
52
      DIImportedEntity::get(C, Tag, Context, DINodeRef(NS), File, Line, Name);
163
52
  if (EntitiesCount < C.pImpl->DIImportedEntitys.size())
164
52
    // A new Imported Entity was just added to the context.
165
52
    // Add it to the Imported Modules list.
166
49
    AllImportedModules.emplace_back(M);
167
52
  return M;
168
52
}
169
170
DIImportedEntity *DIBuilder::createImportedModule(DIScope *Context,
171
                                                  DINamespace *NS, DIFile *File,
172
11
                                                  unsigned Line) {
173
11
  return ::createImportedModule(VMContext, dwarf::DW_TAG_imported_module,
174
11
                                Context, NS, File, Line, StringRef(),
175
11
                                AllImportedModules);
176
11
}
177
178
DIImportedEntity *DIBuilder::createImportedModule(DIScope *Context,
179
                                                  DIImportedEntity *NS,
180
2
                                                  DIFile *File, unsigned Line) {
181
2
  return ::createImportedModule(VMContext, dwarf::DW_TAG_imported_module,
182
2
                                Context, NS, File, Line, StringRef(),
183
2
                                AllImportedModules);
184
2
}
185
186
DIImportedEntity *DIBuilder::createImportedModule(DIScope *Context, DIModule *M,
187
0
                                                  DIFile *File, unsigned Line) {
188
0
  return ::createImportedModule(VMContext, dwarf::DW_TAG_imported_module,
189
0
                                Context, M, File, Line, StringRef(),
190
0
                                AllImportedModules);
191
0
}
192
193
DIImportedEntity *DIBuilder::createImportedDeclaration(DIScope *Context,
194
                                                       DINode *Decl,
195
                                                       DIFile *File,
196
                                                       unsigned Line,
197
39
                                                       StringRef Name) {
198
39
  // Make sure to use the unique identifier based metadata reference for
199
39
  // types that have one.
200
39
  return ::createImportedModule(VMContext, dwarf::DW_TAG_imported_declaration,
201
39
                                Context, Decl, File, Line, Name,
202
39
                                AllImportedModules);
203
39
}
204
205
DIFile *DIBuilder::createFile(StringRef Filename, StringRef Directory,
206
5.26k
                              DIFile::ChecksumKind CSKind, StringRef Checksum) {
207
5.26k
  return DIFile::get(VMContext, Filename, Directory, CSKind, Checksum);
208
5.26k
}
209
210
DIMacro *DIBuilder::createMacro(DIMacroFile *Parent, unsigned LineNumber,
211
                                unsigned MacroType, StringRef Name,
212
1.07k
                                StringRef Value) {
213
1.07k
  assert(!Name.empty() && "Unable to create macro without name");
214
1.07k
  assert((MacroType == dwarf::DW_MACINFO_undef ||
215
1.07k
          MacroType == dwarf::DW_MACINFO_define) &&
216
1.07k
         "Unexpected macro type");
217
1.07k
  auto *M = DIMacro::get(VMContext, MacroType, LineNumber, Name, Value);
218
1.07k
  AllMacrosPerParent[Parent].insert(M);
219
1.07k
  return M;
220
1.07k
}
221
222
DIMacroFile *DIBuilder::createTempMacroFile(DIMacroFile *Parent,
223
18
                                            unsigned LineNumber, DIFile *File) {
224
18
  auto *MF = DIMacroFile::getTemporary(VMContext, dwarf::DW_MACINFO_start_file,
225
18
                                       LineNumber, File, DIMacroNodeArray())
226
18
                 .release();
227
18
  AllMacrosPerParent[Parent].insert(MF);
228
18
  // Add the new temporary DIMacroFile to the macro per parent map as a parent.
229
18
  // This is needed to assure DIMacroFile with no children to have an entry in
230
18
  // the map. Otherwise, it will not be resolved in DIBuilder::finalize().
231
18
  AllMacrosPerParent.insert({MF, {}});
232
18
  return MF;
233
18
}
234
235
66
DIEnumerator *DIBuilder::createEnumerator(StringRef Name, int64_t Val) {
236
66
  assert(!Name.empty() && "Unable to create enumerator without name");
237
66
  return DIEnumerator::get(VMContext, Val, Name);
238
66
}
239
240
15
DIBasicType *DIBuilder::createUnspecifiedType(StringRef Name) {
241
15
  assert(!Name.empty() && "Unable to create type without name");
242
15
  return DIBasicType::get(VMContext, dwarf::DW_TAG_unspecified_type, Name);
243
15
}
244
245
15
DIBasicType *DIBuilder::createNullPtrType() {
246
15
  return createUnspecifiedType("decltype(nullptr)");
247
15
}
248
249
DIBasicType *DIBuilder::createBasicType(StringRef Name, uint64_t SizeInBits,
250
583
                                        unsigned Encoding) {
251
583
  assert(!Name.empty() && "Unable to create type without name");
252
583
  return DIBasicType::get(VMContext, dwarf::DW_TAG_base_type, Name, SizeInBits,
253
583
                          0, Encoding);
254
583
}
255
256
212
DIDerivedType *DIBuilder::createQualifiedType(unsigned Tag, DIType *FromTy) {
257
212
  return DIDerivedType::get(VMContext, Tag, "", nullptr, 0, nullptr, FromTy, 0,
258
212
                            0, 0, None, DINode::FlagZero);
259
212
}
260
261
DIDerivedType *DIBuilder::createPointerType(
262
    DIType *PointeeTy,
263
    uint64_t SizeInBits,
264
    uint32_t AlignInBits,
265
    Optional<unsigned> DWARFAddressSpace,
266
1.56k
    StringRef Name) {
267
1.56k
  // FIXME: Why is there a name here?
268
1.56k
  return DIDerivedType::get(VMContext, dwarf::DW_TAG_pointer_type, Name,
269
1.56k
                            nullptr, 0, nullptr, PointeeTy, SizeInBits,
270
1.56k
                            AlignInBits, 0, DWARFAddressSpace,
271
1.56k
                            DINode::FlagZero);
272
1.56k
}
273
274
DIDerivedType *DIBuilder::createMemberPointerType(DIType *PointeeTy,
275
                                                  DIType *Base,
276
                                                  uint64_t SizeInBits,
277
                                                  uint32_t AlignInBits,
278
34
                                                  DINode::DIFlags Flags) {
279
34
  return DIDerivedType::get(VMContext, dwarf::DW_TAG_ptr_to_member_type, "",
280
34
                            nullptr, 0, nullptr, PointeeTy, SizeInBits,
281
34
                            AlignInBits, 0, None, Flags, Base);
282
34
}
283
284
DIDerivedType *DIBuilder::createReferenceType(
285
    unsigned Tag, DIType *RTy,
286
    uint64_t SizeInBits,
287
    uint32_t AlignInBits,
288
124
    Optional<unsigned> DWARFAddressSpace) {
289
124
  assert(RTy && "Unable to create reference type");
290
124
  return DIDerivedType::get(VMContext, Tag, "", nullptr, 0, nullptr, RTy,
291
124
                            SizeInBits, AlignInBits, 0, DWARFAddressSpace,
292
124
                            DINode::FlagZero);
293
124
}
294
295
DIDerivedType *DIBuilder::createTypedef(DIType *Ty, StringRef Name,
296
                                        DIFile *File, unsigned LineNo,
297
302
                                        DIScope *Context) {
298
302
  return DIDerivedType::get(VMContext, dwarf::DW_TAG_typedef, Name, File,
299
302
                            LineNo, getNonCompileUnitScope(Context), Ty, 0, 0,
300
302
                            0, None, DINode::FlagZero);
301
302
}
302
303
0
DIDerivedType *DIBuilder::createFriend(DIType *Ty, DIType *FriendTy) {
304
0
  assert(Ty && "Invalid type!");
305
0
  assert(FriendTy && "Invalid friend type!");
306
0
  return DIDerivedType::get(VMContext, dwarf::DW_TAG_friend, "", nullptr, 0, Ty,
307
0
                            FriendTy, 0, 0, 0, None, DINode::FlagZero);
308
0
}
309
310
DIDerivedType *DIBuilder::createInheritance(DIType *Ty, DIType *BaseTy,
311
                                            uint64_t BaseOffset,
312
141
                                            DINode::DIFlags Flags) {
313
141
  assert(Ty && "Unable to create inheritance");
314
141
  return DIDerivedType::get(VMContext, dwarf::DW_TAG_inheritance, "", nullptr,
315
141
                            0, Ty, BaseTy, 0, 0, BaseOffset, None, Flags);
316
141
}
317
318
DIDerivedType *DIBuilder::createMemberType(DIScope *Scope, StringRef Name,
319
                                           DIFile *File, unsigned LineNumber,
320
                                           uint64_t SizeInBits,
321
                                           uint32_t AlignInBits,
322
                                           uint64_t OffsetInBits,
323
1.01k
                                           DINode::DIFlags Flags, DIType *Ty) {
324
1.01k
  return DIDerivedType::get(VMContext, dwarf::DW_TAG_member, Name, File,
325
1.01k
                            LineNumber, getNonCompileUnitScope(Scope), Ty,
326
1.01k
                            SizeInBits, AlignInBits, OffsetInBits, None, Flags);
327
1.01k
}
328
329
460
static ConstantAsMetadata *getConstantOrNull(Constant *C) {
330
460
  if (C)
331
401
    return ConstantAsMetadata::get(C);
332
59
  return nullptr;
333
59
}
334
335
DIDerivedType *DIBuilder::createBitFieldMemberType(
336
    DIScope *Scope, StringRef Name, DIFile *File, unsigned LineNumber,
337
    uint64_t SizeInBits, uint64_t OffsetInBits, uint64_t StorageOffsetInBits,
338
14
    DINode::DIFlags Flags, DIType *Ty) {
339
14
  Flags |= DINode::FlagBitField;
340
14
  return DIDerivedType::get(
341
14
      VMContext, dwarf::DW_TAG_member, Name, File, LineNumber,
342
14
      getNonCompileUnitScope(Scope), Ty, SizeInBits, /* AlignInBits */ 0,
343
14
      OffsetInBits, None, Flags,
344
14
      ConstantAsMetadata::get(ConstantInt::get(IntegerType::get(VMContext, 64),
345
14
                                               StorageOffsetInBits)));
346
14
}
347
348
DIDerivedType *
349
DIBuilder::createStaticMemberType(DIScope *Scope, StringRef Name, DIFile *File,
350
                                  unsigned LineNumber, DIType *Ty,
351
                                  DINode::DIFlags Flags, llvm::Constant *Val,
352
87
                                  uint32_t AlignInBits) {
353
87
  Flags |= DINode::FlagStaticMember;
354
87
  return DIDerivedType::get(VMContext, dwarf::DW_TAG_member, Name, File,
355
87
                            LineNumber, getNonCompileUnitScope(Scope), Ty, 0,
356
87
                            AlignInBits, 0, None, Flags,
357
87
                            getConstantOrNull(Val));
358
87
}
359
360
DIDerivedType *
361
DIBuilder::createObjCIVar(StringRef Name, DIFile *File, unsigned LineNumber,
362
                          uint64_t SizeInBits, uint32_t AlignInBits,
363
                          uint64_t OffsetInBits, DINode::DIFlags Flags,
364
95
                          DIType *Ty, MDNode *PropertyNode) {
365
95
  return DIDerivedType::get(VMContext, dwarf::DW_TAG_member, Name, File,
366
95
                            LineNumber, getNonCompileUnitScope(File), Ty,
367
95
                            SizeInBits, AlignInBits, OffsetInBits, None, Flags,
368
95
                            PropertyNode);
369
95
}
370
371
DIObjCProperty *
372
DIBuilder::createObjCProperty(StringRef Name, DIFile *File, unsigned LineNumber,
373
                              StringRef GetterName, StringRef SetterName,
374
78
                              unsigned PropertyAttributes, DIType *Ty) {
375
78
  return DIObjCProperty::get(VMContext, Name, File, LineNumber, GetterName,
376
78
                             SetterName, PropertyAttributes, Ty);
377
78
}
378
379
DITemplateTypeParameter *
380
DIBuilder::createTemplateTypeParameter(DIScope *Context, StringRef Name,
381
311
                                       DIType *Ty) {
382
311
  assert((!Context || isa<DICompileUnit>(Context)) && "Expected compile unit");
383
311
  return DITemplateTypeParameter::get(VMContext, Name, Ty);
384
311
}
385
386
static DITemplateValueParameter *
387
createTemplateValueParameterHelper(LLVMContext &VMContext, unsigned Tag,
388
                                   DIScope *Context, StringRef Name, DIType *Ty,
389
410
                                   Metadata *MD) {
390
410
  assert((!Context || isa<DICompileUnit>(Context)) && "Expected compile unit");
391
410
  return DITemplateValueParameter::get(VMContext, Tag, Name, Ty, MD);
392
410
}
393
394
DITemplateValueParameter *
395
DIBuilder::createTemplateValueParameter(DIScope *Context, StringRef Name,
396
373
                                        DIType *Ty, Constant *Val) {
397
373
  return createTemplateValueParameterHelper(
398
373
      VMContext, dwarf::DW_TAG_template_value_parameter, Context, Name, Ty,
399
373
      getConstantOrNull(Val));
400
373
}
401
402
DITemplateValueParameter *
403
DIBuilder::createTemplateTemplateParameter(DIScope *Context, StringRef Name,
404
31
                                           DIType *Ty, StringRef Val) {
405
31
  return createTemplateValueParameterHelper(
406
31
      VMContext, dwarf::DW_TAG_GNU_template_template_param, Context, Name, Ty,
407
31
      MDString::get(VMContext, Val));
408
31
}
409
410
DITemplateValueParameter *
411
DIBuilder::createTemplateParameterPack(DIScope *Context, StringRef Name,
412
6
                                       DIType *Ty, DINodeArray Val) {
413
6
  return createTemplateValueParameterHelper(
414
6
      VMContext, dwarf::DW_TAG_GNU_template_parameter_pack, Context, Name, Ty,
415
6
      Val.get());
416
6
}
417
418
DICompositeType *DIBuilder::createClassType(
419
    DIScope *Context, StringRef Name, DIFile *File, unsigned LineNumber,
420
    uint64_t SizeInBits, uint32_t AlignInBits, uint64_t OffsetInBits,
421
    DINode::DIFlags Flags, DIType *DerivedFrom, DINodeArray Elements,
422
0
    DIType *VTableHolder, MDNode *TemplateParams, StringRef UniqueIdentifier) {
423
0
  assert((!Context || isa<DIScope>(Context)) &&
424
0
         "createClassType should be called with a valid Context");
425
0
426
0
  auto *R = DICompositeType::get(
427
0
      VMContext, dwarf::DW_TAG_structure_type, Name, File, LineNumber,
428
0
      getNonCompileUnitScope(Context), DerivedFrom, SizeInBits, AlignInBits,
429
0
      OffsetInBits, Flags, Elements, 0, VTableHolder,
430
0
      cast_or_null<MDTuple>(TemplateParams), UniqueIdentifier);
431
0
  trackIfUnresolved(R);
432
0
  return R;
433
0
}
434
435
DICompositeType *DIBuilder::createStructType(
436
    DIScope *Context, StringRef Name, DIFile *File, unsigned LineNumber,
437
    uint64_t SizeInBits, uint32_t AlignInBits, DINode::DIFlags Flags,
438
    DIType *DerivedFrom, DINodeArray Elements, unsigned RunTimeLang,
439
241
    DIType *VTableHolder, StringRef UniqueIdentifier) {
440
241
  auto *R = DICompositeType::get(
441
241
      VMContext, dwarf::DW_TAG_structure_type, Name, File, LineNumber,
442
241
      getNonCompileUnitScope(Context), DerivedFrom, SizeInBits, AlignInBits, 0,
443
241
      Flags, Elements, RunTimeLang, VTableHolder, nullptr, UniqueIdentifier);
444
241
  trackIfUnresolved(R);
445
241
  return R;
446
241
}
447
448
DICompositeType *DIBuilder::createUnionType(
449
    DIScope *Scope, StringRef Name, DIFile *File, unsigned LineNumber,
450
    uint64_t SizeInBits, uint32_t AlignInBits, DINode::DIFlags Flags,
451
0
    DINodeArray Elements, unsigned RunTimeLang, StringRef UniqueIdentifier) {
452
0
  auto *R = DICompositeType::get(
453
0
      VMContext, dwarf::DW_TAG_union_type, Name, File, LineNumber,
454
0
      getNonCompileUnitScope(Scope), nullptr, SizeInBits, AlignInBits, 0, Flags,
455
0
      Elements, RunTimeLang, nullptr, nullptr, UniqueIdentifier);
456
0
  trackIfUnresolved(R);
457
0
  return R;
458
0
}
459
460
DISubroutineType *DIBuilder::createSubroutineType(DITypeRefArray ParameterTypes,
461
                                                  DINode::DIFlags Flags,
462
23.5k
                                                  unsigned CC) {
463
23.5k
  return DISubroutineType::get(VMContext, Flags, CC, ParameterTypes);
464
23.5k
}
465
466
DICompositeType *DIBuilder::createEnumerationType(
467
    DIScope *Scope, StringRef Name, DIFile *File, unsigned LineNumber,
468
    uint64_t SizeInBits, uint32_t AlignInBits, DINodeArray Elements,
469
57
    DIType *UnderlyingType, StringRef UniqueIdentifier) {
470
57
  auto *CTy = DICompositeType::get(
471
57
      VMContext, dwarf::DW_TAG_enumeration_type, Name, File, LineNumber,
472
57
      getNonCompileUnitScope(Scope), UnderlyingType, SizeInBits, AlignInBits, 0,
473
57
      DINode::FlagZero, Elements, 0, nullptr, nullptr, UniqueIdentifier);
474
57
  AllEnumTypes.push_back(CTy);
475
57
  trackIfUnresolved(CTy);
476
57
  return CTy;
477
57
}
478
479
DICompositeType *DIBuilder::createArrayType(uint64_t Size,
480
                                            uint32_t AlignInBits, DIType *Ty,
481
196
                                            DINodeArray Subscripts) {
482
196
  auto *R = DICompositeType::get(VMContext, dwarf::DW_TAG_array_type, "",
483
196
                                 nullptr, 0, nullptr, Ty, Size, AlignInBits, 0,
484
196
                                 DINode::FlagZero, Subscripts, 0, nullptr);
485
196
  trackIfUnresolved(R);
486
196
  return R;
487
196
}
488
489
DICompositeType *DIBuilder::createVectorType(uint64_t Size,
490
                                             uint32_t AlignInBits, DIType *Ty,
491
15
                                             DINodeArray Subscripts) {
492
15
  auto *R = DICompositeType::get(VMContext, dwarf::DW_TAG_array_type, "",
493
15
                                 nullptr, 0, nullptr, Ty, Size, AlignInBits, 0,
494
15
                                 DINode::FlagVector, Subscripts, 0, nullptr);
495
15
  trackIfUnresolved(R);
496
15
  return R;
497
15
}
498
499
static DIType *createTypeWithFlags(LLVMContext &Context, DIType *Ty,
500
1.75k
                                   DINode::DIFlags FlagsToSet) {
501
1.75k
  auto NewTy = Ty->clone();
502
1.75k
  NewTy->setFlags(NewTy->getFlags() | FlagsToSet);
503
1.75k
  return MDNode::replaceWithUniqued(std::move(NewTy));
504
1.75k
}
505
506
128
DIType *DIBuilder::createArtificialType(DIType *Ty) {
507
128
  // FIXME: Restrict this to the nodes where it's valid.
508
128
  if (Ty->isArtificial())
509
0
    return Ty;
510
128
  return createTypeWithFlags(VMContext, Ty, DINode::FlagArtificial);
511
128
}
512
513
1.62k
DIType *DIBuilder::createObjectPointerType(DIType *Ty) {
514
1.62k
  // FIXME: Restrict this to the nodes where it's valid.
515
1.62k
  if (Ty->isObjectPointer())
516
0
    return Ty;
517
1.62k
  DINode::DIFlags Flags = DINode::FlagObjectPointer | DINode::FlagArtificial;
518
1.62k
  return createTypeWithFlags(VMContext, Ty, Flags);
519
1.62k
}
520
521
357
void DIBuilder::retainType(DIScope *T) {
522
357
  assert(T && "Expected non-null type");
523
357
  assert((isa<DIType>(T) || (isa<DISubprogram>(T) &&
524
357
                             cast<DISubprogram>(T)->isDefinition() == false)) &&
525
357
         "Expected type or subprogram declaration");
526
357
  AllRetainTypes.emplace_back(T);
527
357
}
528
529
12
DIBasicType *DIBuilder::createUnspecifiedParameter() { return nullptr; }
530
531
DICompositeType *
532
DIBuilder::createForwardDecl(unsigned Tag, StringRef Name, DIScope *Scope,
533
                             DIFile *F, unsigned Line, unsigned RuntimeLang,
534
                             uint64_t SizeInBits, uint32_t AlignInBits,
535
74
                             StringRef UniqueIdentifier) {
536
74
  // FIXME: Define in terms of createReplaceableForwardDecl() by calling
537
74
  // replaceWithUniqued().
538
74
  auto *RetTy = DICompositeType::get(
539
74
      VMContext, Tag, Name, F, Line, getNonCompileUnitScope(Scope), nullptr,
540
74
      SizeInBits, AlignInBits, 0, DINode::FlagFwdDecl, nullptr, RuntimeLang,
541
74
      nullptr, nullptr, UniqueIdentifier);
542
74
  trackIfUnresolved(RetTy);
543
74
  return RetTy;
544
74
}
545
546
DICompositeType *DIBuilder::createReplaceableCompositeType(
547
    unsigned Tag, StringRef Name, DIScope *Scope, DIFile *F, unsigned Line,
548
    unsigned RuntimeLang, uint64_t SizeInBits, uint32_t AlignInBits,
549
1.22k
    DINode::DIFlags Flags, StringRef UniqueIdentifier) {
550
1.22k
  auto *RetTy =
551
1.22k
      DICompositeType::getTemporary(
552
1.22k
          VMContext, Tag, Name, F, Line, getNonCompileUnitScope(Scope), nullptr,
553
1.22k
          SizeInBits, AlignInBits, 0, Flags, nullptr, RuntimeLang, nullptr,
554
1.22k
          nullptr, UniqueIdentifier)
555
1.22k
          .release();
556
1.22k
  trackIfUnresolved(RetTy);
557
1.22k
  return RetTy;
558
1.22k
}
559
560
24.4k
DINodeArray DIBuilder::getOrCreateArray(ArrayRef<Metadata *> Elements) {
561
24.4k
  return MDTuple::get(VMContext, Elements);
562
24.4k
}
563
564
DIMacroNodeArray
565
20
DIBuilder::getOrCreateMacroArray(ArrayRef<Metadata *> Elements) {
566
20
  return MDTuple::get(VMContext, Elements);
567
20
}
568
569
23.5k
DITypeRefArray DIBuilder::getOrCreateTypeArray(ArrayRef<Metadata *> Elements) {
570
23.5k
  SmallVector<llvm::Metadata *, 16> Elts;
571
29.2k
  for (unsigned i = 0, e = Elements.size(); 
i != e29.2k
;
++i5.69k
) {
572
5.69k
    if (
Elements[i] && 5.69k
isa<MDNode>(Elements[i])3.97k
)
573
3.97k
      Elts.push_back(cast<DIType>(Elements[i]));
574
5.69k
    else
575
1.72k
      Elts.push_back(Elements[i]);
576
5.69k
  }
577
23.5k
  return DITypeRefArray(MDNode::get(VMContext, Elts));
578
23.5k
}
579
580
219
DISubrange *DIBuilder::getOrCreateSubrange(int64_t Lo, int64_t Count) {
581
219
  return DISubrange::get(VMContext, Count, Lo);
582
219
}
583
584
507
static void checkGlobalVariableScope(DIScope *Context) {
585
#ifndef NDEBUG
586
  if (auto *CT =
587
          dyn_cast_or_null<DICompositeType>(getNonCompileUnitScope(Context)))
588
    assert(CT->getIdentifier().empty() &&
589
           "Context of a global variable should not be a type with identifier");
590
#endif
591
}
592
593
DIGlobalVariableExpression *DIBuilder::createGlobalVariableExpression(
594
    DIScope *Context, StringRef Name, StringRef LinkageName, DIFile *F,
595
    unsigned LineNumber, DIType *Ty, bool isLocalToUnit, DIExpression *Expr,
596
503
    MDNode *Decl, uint32_t AlignInBits) {
597
503
  checkGlobalVariableScope(Context);
598
503
599
503
  auto *GV = DIGlobalVariable::getDistinct(
600
503
      VMContext, cast_or_null<DIScope>(Context), Name, LinkageName, F,
601
503
      LineNumber, Ty, isLocalToUnit, true, cast_or_null<DIDerivedType>(Decl),
602
503
      AlignInBits);
603
503
  if (!Expr)
604
462
    Expr = createExpression();
605
503
  auto *N = DIGlobalVariableExpression::get(VMContext, GV, Expr);
606
503
  AllGVs.push_back(N);
607
503
  return N;
608
503
}
609
610
DIGlobalVariable *DIBuilder::createTempGlobalVariableFwdDecl(
611
    DIScope *Context, StringRef Name, StringRef LinkageName, DIFile *F,
612
    unsigned LineNumber, DIType *Ty, bool isLocalToUnit, MDNode *Decl,
613
4
    uint32_t AlignInBits) {
614
4
  checkGlobalVariableScope(Context);
615
4
616
4
  return DIGlobalVariable::getTemporary(
617
4
             VMContext, cast_or_null<DIScope>(Context), Name, LinkageName, F,
618
4
             LineNumber, Ty, isLocalToUnit, false,
619
4
             cast_or_null<DIDerivedType>(Decl), AlignInBits)
620
4
      .release();
621
4
}
622
623
static DILocalVariable *createLocalVariable(
624
    LLVMContext &VMContext,
625
    DenseMap<MDNode *, SmallVector<TrackingMDNodeRef, 1>> &PreservedVariables,
626
    DIScope *Scope, StringRef Name, unsigned ArgNo, DIFile *File,
627
    unsigned LineNo, DIType *Ty, bool AlwaysPreserve, DINode::DIFlags Flags,
628
3.29k
    uint32_t AlignInBits) {
629
3.29k
  // FIXME: Why getNonCompileUnitScope()?
630
3.29k
  // FIXME: Why is "!Context" okay here?
631
3.29k
  // FIXME: Why doesn't this check for a subprogram or lexical block (AFAICT
632
3.29k
  // the only valid scopes)?
633
3.29k
  DIScope *Context = getNonCompileUnitScope(Scope);
634
3.29k
635
3.29k
  auto *Node =
636
3.29k
      DILocalVariable::get(VMContext, cast_or_null<DILocalScope>(Context), Name,
637
3.29k
                           File, LineNo, Ty, ArgNo, Flags, AlignInBits);
638
3.29k
  if (
AlwaysPreserve3.29k
) {
639
42
    // The optimizer may remove local variables. If there is an interest
640
42
    // to preserve variable info in such situation then stash it in a
641
42
    // named mdnode.
642
42
    DISubprogram *Fn = getDISubprogram(Scope);
643
42
    assert(Fn && "Missing subprogram for local variable");
644
42
    PreservedVariables[Fn].emplace_back(Node);
645
42
  }
646
3.29k
  return Node;
647
3.29k
}
648
649
DILocalVariable *DIBuilder::createAutoVariable(DIScope *Scope, StringRef Name,
650
                                               DIFile *File, unsigned LineNo,
651
                                               DIType *Ty, bool AlwaysPreserve,
652
                                               DINode::DIFlags Flags,
653
1.15k
                                               uint32_t AlignInBits) {
654
1.15k
  return createLocalVariable(VMContext, PreservedVariables, Scope, Name,
655
1.15k
                             /* ArgNo */ 0, File, LineNo, Ty, AlwaysPreserve,
656
1.15k
                             Flags, AlignInBits);
657
1.15k
}
658
659
DILocalVariable *DIBuilder::createParameterVariable(
660
    DIScope *Scope, StringRef Name, unsigned ArgNo, DIFile *File,
661
2.13k
    unsigned LineNo, DIType *Ty, bool AlwaysPreserve, DINode::DIFlags Flags) {
662
2.13k
  assert(ArgNo && "Expected non-zero argument number for parameter");
663
2.13k
  return createLocalVariable(VMContext, PreservedVariables, Scope, Name, ArgNo,
664
2.13k
                             File, LineNo, Ty, AlwaysPreserve, Flags,
665
2.13k
                             /* AlignInBits */0);
666
2.13k
}
667
668
3.80k
DIExpression *DIBuilder::createExpression(ArrayRef<uint64_t> Addr) {
669
3.80k
  return DIExpression::get(VMContext, Addr);
670
3.80k
}
671
672
3.27k
DIExpression *DIBuilder::createExpression(ArrayRef<int64_t> Signed) {
673
3.27k
  // TODO: Remove the callers of this signed version and delete.
674
3.27k
  SmallVector<uint64_t, 8> Addr(Signed.begin(), Signed.end());
675
3.27k
  return createExpression(Addr);
676
3.27k
}
677
678
template <class... Ts>
679
23.4k
static DISubprogram *getSubprogram(bool IsDistinct, Ts &&... Args) {
680
23.4k
  if (IsDistinct)
681
22.5k
    return DISubprogram::getDistinct(std::forward<Ts>(Args)...);
682
939
  return DISubprogram::get(std::forward<Ts>(Args)...);
683
939
}
DIBuilder.cpp:llvm::DISubprogram* getSubprogram<llvm::LLVMContext&, llvm::DIScope*, llvm::StringRef&, llvm::StringRef&, llvm::DIFile*&, unsigned int&, llvm::DISubroutineType*&, bool&, bool&, unsigned int&, std::nullptr_t, int, int, int, llvm::DINode::DIFlags&, bool&, llvm::DICompileUnit*, llvm::MDTupleTypedArrayWrapper<llvm::DITemplateParameter>&, llvm::DISubprogram*&, llvm::MDTuple*, llvm::MDTupleTypedArrayWrapper<llvm::DIType>&>(bool, llvm::LLVMContext&&&, llvm::DIScope*&&, llvm::StringRef&&&, llvm::StringRef&&&, llvm::DIFile*&&&, unsigned int&&&, llvm::DISubroutineType*&&&, bool&&&, bool&&&, unsigned int&&&, std::nullptr_t&&, int&&, int&&, int&&, llvm::DINode::DIFlags&&&, bool&&&, llvm::DICompileUnit*&&, llvm::MDTupleTypedArrayWrapper<llvm::DITemplateParameter>&&&, llvm::DISubprogram*&&&, llvm::MDTuple*&&, llvm::MDTupleTypedArrayWrapper<llvm::DIType>&&&)
Line
Count
Source
679
22.5k
static DISubprogram *getSubprogram(bool IsDistinct, Ts &&... Args) {
680
22.5k
  if (IsDistinct)
681
22.5k
    return DISubprogram::getDistinct(std::forward<Ts>(Args)...);
682
31
  return DISubprogram::get(std::forward<Ts>(Args)...);
683
31
}
DIBuilder.cpp:llvm::DISubprogram* getSubprogram<llvm::LLVMContext&, llvm::DIScope*, llvm::StringRef&, llvm::StringRef&, llvm::DIFile*&, unsigned int&, llvm::DISubroutineType*&, bool&, bool&, unsigned int&, llvm::DIType*&, unsigned int&, unsigned int&, int&, llvm::DINode::DIFlags&, bool&, llvm::DICompileUnit*, llvm::MDTupleTypedArrayWrapper<llvm::DITemplateParameter>&, std::nullptr_t, std::nullptr_t, llvm::MDTupleTypedArrayWrapper<llvm::DIType>&>(bool, llvm::LLVMContext&&&, llvm::DIScope*&&, llvm::StringRef&&&, llvm::StringRef&&&, llvm::DIFile*&&&, unsigned int&&&, llvm::DISubroutineType*&&&, bool&&&, bool&&&, unsigned int&&&, llvm::DIType*&&&, unsigned int&&&, unsigned int&&&, int&&&, llvm::DINode::DIFlags&&&, bool&&&, llvm::DICompileUnit*&&, llvm::MDTupleTypedArrayWrapper<llvm::DITemplateParameter>&&&, std::nullptr_t&&, std::nullptr_t&&, llvm::MDTupleTypedArrayWrapper<llvm::DIType>&&&)
Line
Count
Source
679
908
static DISubprogram *getSubprogram(bool IsDistinct, Ts &&... Args) {
680
908
  if (IsDistinct)
681
0
    return DISubprogram::getDistinct(std::forward<Ts>(Args)...);
682
908
  return DISubprogram::get(std::forward<Ts>(Args)...);
683
908
}
684
685
DISubprogram *DIBuilder::createFunction(
686
    DIScope *Context, StringRef Name, StringRef LinkageName, DIFile *File,
687
    unsigned LineNo, DISubroutineType *Ty, bool isLocalToUnit,
688
    bool isDefinition, unsigned ScopeLine, DINode::DIFlags Flags,
689
    bool isOptimized, DITemplateParameterArray TParams, DISubprogram *Decl,
690
22.5k
    DITypeArray ThrownTypes) {
691
22.5k
  auto *Node = getSubprogram(
692
22.5k
      /* IsDistinct = */ isDefinition, VMContext,
693
22.5k
      getNonCompileUnitScope(Context), Name, LinkageName, File, LineNo, Ty,
694
22.5k
      isLocalToUnit, isDefinition, ScopeLine, nullptr, 0, 0, 0, Flags,
695
22.5k
      isOptimized, isDefinition ? 
CUNode22.5k
:
nullptr31
, TParams, Decl,
696
22.5k
      MDTuple::getTemporary(VMContext, None).release(), ThrownTypes);
697
22.5k
698
22.5k
  if (isDefinition)
699
22.5k
    AllSubprograms.push_back(Node);
700
22.5k
  trackIfUnresolved(Node);
701
22.5k
  return Node;
702
22.5k
}
703
704
DISubprogram *DIBuilder::createTempFunctionFwdDecl(
705
    DIScope *Context, StringRef Name, StringRef LinkageName, DIFile *File,
706
    unsigned LineNo, DISubroutineType *Ty, bool isLocalToUnit,
707
    bool isDefinition, unsigned ScopeLine, DINode::DIFlags Flags,
708
    bool isOptimized, DITemplateParameterArray TParams, DISubprogram *Decl,
709
4
    DITypeArray ThrownTypes) {
710
4
  return DISubprogram::getTemporary(
711
4
             VMContext, getNonCompileUnitScope(Context), Name, LinkageName,
712
4
             File, LineNo, Ty, isLocalToUnit, isDefinition, ScopeLine, nullptr,
713
4
             0, 0, 0, Flags, isOptimized, isDefinition ? 
CUNode0
:
nullptr4
,
714
4
             TParams, Decl, nullptr, ThrownTypes)
715
4
      .release();
716
4
}
717
718
DISubprogram *DIBuilder::createMethod(
719
    DIScope *Context, StringRef Name, StringRef LinkageName, DIFile *F,
720
    unsigned LineNo, DISubroutineType *Ty, bool isLocalToUnit,
721
    bool isDefinition, unsigned VK, unsigned VIndex, int ThisAdjustment,
722
    DIType *VTableHolder, DINode::DIFlags Flags, bool isOptimized,
723
908
    DITemplateParameterArray TParams, DITypeArray ThrownTypes) {
724
908
  assert(getNonCompileUnitScope(Context) &&
725
908
         "Methods should have both a Context and a context that isn't "
726
908
         "the compile unit.");
727
908
  // FIXME: Do we want to use different scope/lines?
728
908
  auto *SP = getSubprogram(
729
908
      /* IsDistinct = */ isDefinition, VMContext, cast<DIScope>(Context), Name,
730
908
      LinkageName, F, LineNo, Ty, isLocalToUnit, isDefinition, LineNo,
731
908
      VTableHolder, VK, VIndex, ThisAdjustment, Flags, isOptimized,
732
908
      isDefinition ? 
CUNode0
:
nullptr908
, TParams, nullptr, nullptr, ThrownTypes);
733
908
734
908
  if (isDefinition)
735
0
    AllSubprograms.push_back(SP);
736
908
  trackIfUnresolved(SP);
737
908
  return SP;
738
908
}
739
740
DINamespace *DIBuilder::createNameSpace(DIScope *Scope, StringRef Name,
741
120
                                        bool ExportSymbols) {
742
120
743
120
  // It is okay to *not* make anonymous top-level namespaces distinct, because
744
120
  // all nodes that have an anonymous namespace as their parent scope are
745
120
  // guaranteed to be unique and/or are linked to their containing
746
120
  // DICompileUnit. This decision is an explicit tradeoff of link time versus
747
120
  // memory usage versus code simplicity and may get revisited in the future.
748
120
  return DINamespace::get(VMContext, getNonCompileUnitScope(Scope), Name,
749
120
                          ExportSymbols);
750
120
}
751
752
DIModule *DIBuilder::createModule(DIScope *Scope, StringRef Name,
753
                                  StringRef ConfigurationMacros,
754
                                  StringRef IncludePath,
755
53
                                  StringRef ISysRoot) {
756
53
 return DIModule::get(VMContext, getNonCompileUnitScope(Scope), Name,
757
53
                      ConfigurationMacros, IncludePath, ISysRoot);
758
53
}
759
760
DILexicalBlockFile *DIBuilder::createLexicalBlockFile(DIScope *Scope,
761
                                                      DIFile *File,
762
366
                                                      unsigned Discriminator) {
763
366
  return DILexicalBlockFile::get(VMContext, Scope, File, Discriminator);
764
366
}
765
766
DILexicalBlock *DIBuilder::createLexicalBlock(DIScope *Scope, DIFile *File,
767
582
                                              unsigned Line, unsigned Col) {
768
582
  // Make these distinct, to avoid merging two lexical blocks on the same
769
582
  // file/line/column.
770
582
  return DILexicalBlock::getDistinct(VMContext, getNonCompileUnitScope(Scope),
771
582
                                     File, Line, Col);
772
582
}
773
774
3.61k
static Value *getDbgIntrinsicValueImpl(LLVMContext &VMContext, Value *V) {
775
3.61k
  assert(V && "no value passed to dbg intrinsic");
776
3.61k
  return MetadataAsValue::get(VMContext, ValueAsMetadata::get(V));
777
3.61k
}
778
779
3.61k
static Instruction *withDebugLoc(Instruction *I, const DILocation *DL) {
780
3.61k
  I->setDebugLoc(const_cast<DILocation *>(DL));
781
3.61k
  return I;
782
3.61k
}
783
784
329
static Function *getDeclareIntrin(Module &M) {
785
1
  return Intrinsic::getDeclaration(&M, UseDbgAddr ? Intrinsic::dbg_addr
786
328
                                                  : Intrinsic::dbg_declare);
787
329
}
788
789
Instruction *DIBuilder::insertDeclare(Value *Storage, DILocalVariable *VarInfo,
790
                                      DIExpression *Expr, const DILocation *DL,
791
141
                                      Instruction *InsertBefore) {
792
141
  assert(VarInfo && "empty or invalid DILocalVariable* passed to dbg.declare");
793
141
  assert(DL && "Expected debug loc");
794
141
  assert(DL->getScope()->getSubprogram() ==
795
141
             VarInfo->getScope()->getSubprogram() &&
796
141
         "Expected matching subprograms");
797
141
  if (!DeclareFn)
798
52
    DeclareFn = getDeclareIntrin(M);
799
141
800
141
  trackIfUnresolved(VarInfo);
801
141
  trackIfUnresolved(Expr);
802
141
  Value *Args[] = {getDbgIntrinsicValueImpl(VMContext, Storage),
803
141
                   MetadataAsValue::get(VMContext, VarInfo),
804
141
                   MetadataAsValue::get(VMContext, Expr)};
805
141
  return withDebugLoc(CallInst::Create(DeclareFn, Args, "", InsertBefore), DL);
806
141
}
807
808
Instruction *DIBuilder::insertDeclare(Value *Storage, DILocalVariable *VarInfo,
809
                                      DIExpression *Expr, const DILocation *DL,
810
3.25k
                                      BasicBlock *InsertAtEnd) {
811
3.25k
  assert(VarInfo && "empty or invalid DILocalVariable* passed to dbg.declare");
812
3.25k
  assert(DL && "Expected debug loc");
813
3.25k
  assert(DL->getScope()->getSubprogram() ==
814
3.25k
             VarInfo->getScope()->getSubprogram() &&
815
3.25k
         "Expected matching subprograms");
816
3.25k
  if (!DeclareFn)
817
277
    DeclareFn = getDeclareIntrin(M);
818
3.25k
819
3.25k
  trackIfUnresolved(VarInfo);
820
3.25k
  trackIfUnresolved(Expr);
821
3.25k
  Value *Args[] = {getDbgIntrinsicValueImpl(VMContext, Storage),
822
3.25k
                   MetadataAsValue::get(VMContext, VarInfo),
823
3.25k
                   MetadataAsValue::get(VMContext, Expr)};
824
3.25k
825
3.25k
  // If this block already has a terminator then insert this intrinsic
826
3.25k
  // before the terminator.
827
3.25k
  if (TerminatorInst *T = InsertAtEnd->getTerminator())
828
0
    return withDebugLoc(CallInst::Create(DeclareFn, Args, "", T), DL);
829
3.25k
  return withDebugLoc(CallInst::Create(DeclareFn, Args, "", InsertAtEnd), DL);
830
3.25k
}
831
832
Instruction *DIBuilder::insertDbgValueIntrinsic(Value *V,
833
                                                DILocalVariable *VarInfo,
834
                                                DIExpression *Expr,
835
                                                const DILocation *DL,
836
186
                                                Instruction *InsertBefore) {
837
186
  assert(V && "no value passed to dbg.value");
838
186
  assert(VarInfo && "empty or invalid DILocalVariable* passed to dbg.value");
839
186
  assert(DL && "Expected debug loc");
840
186
  assert(DL->getScope()->getSubprogram() ==
841
186
             VarInfo->getScope()->getSubprogram() &&
842
186
         "Expected matching subprograms");
843
186
  if (!ValueFn)
844
100
    ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
845
186
846
186
  trackIfUnresolved(VarInfo);
847
186
  trackIfUnresolved(Expr);
848
186
  Value *Args[] = {getDbgIntrinsicValueImpl(VMContext, V),
849
186
                   MetadataAsValue::get(VMContext, VarInfo),
850
186
                   MetadataAsValue::get(VMContext, Expr)};
851
186
  return withDebugLoc(CallInst::Create(ValueFn, Args, "", InsertBefore), DL);
852
186
}
853
854
Instruction *DIBuilder::insertDbgValueIntrinsic(Value *V,
855
                                                DILocalVariable *VarInfo,
856
                                                DIExpression *Expr,
857
                                                const DILocation *DL,
858
32
                                                BasicBlock *InsertAtEnd) {
859
32
  assert(V && "no value passed to dbg.value");
860
32
  assert(VarInfo && "empty or invalid DILocalVariable* passed to dbg.value");
861
32
  assert(DL && "Expected debug loc");
862
32
  assert(DL->getScope()->getSubprogram() ==
863
32
             VarInfo->getScope()->getSubprogram() &&
864
32
         "Expected matching subprograms");
865
32
  if (!ValueFn)
866
23
    ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
867
32
868
32
  trackIfUnresolved(VarInfo);
869
32
  trackIfUnresolved(Expr);
870
32
  Value *Args[] = {getDbgIntrinsicValueImpl(VMContext, V),
871
32
                   MetadataAsValue::get(VMContext, VarInfo),
872
32
                   MetadataAsValue::get(VMContext, Expr)};
873
32
874
32
  return withDebugLoc(CallInst::Create(ValueFn, Args, "", InsertAtEnd), DL);
875
32
}
876
877
void DIBuilder::replaceVTableHolder(DICompositeType *&T,
878
678
                                    DICompositeType *VTableHolder) {
879
678
  {
880
678
    TypedTrackingMDRef<DICompositeType> N(T);
881
678
    N->replaceVTableHolder(VTableHolder);
882
678
    T = N.get();
883
678
  }
884
678
885
678
  // If this didn't create a self-reference, just return.
886
678
  if (T != VTableHolder)
887
626
    return;
888
52
889
52
  // Look for unresolved operands.  T will drop RAUW support, orphaning any
890
52
  // cycles underneath it.
891
52
  
if (52
T->isResolved()52
)
892
52
    for (const MDOperand &O : T->operands())
893
416
      
if (auto *416
N416
= dyn_cast_or_null<MDNode>(O))
894
116
        trackIfUnresolved(N);
895
678
}
896
897
void DIBuilder::replaceArrays(DICompositeType *&T, DINodeArray Elements,
898
2.08k
                              DINodeArray TParams) {
899
2.08k
  {
900
2.08k
    TypedTrackingMDRef<DICompositeType> N(T);
901
2.08k
    if (Elements)
902
951
      N->replaceElements(Elements);
903
2.08k
    if (TParams)
904
284
      N->replaceTemplateParams(DITemplateParameterArray(TParams));
905
2.08k
    T = N.get();
906
2.08k
  }
907
2.08k
908
2.08k
  // If T isn't resolved, there's no problem.
909
2.08k
  if (!T->isResolved())
910
44
    return;
911
2.03k
912
2.03k
  // If T is resolved, it may be due to a self-reference cycle.  Track the
913
2.03k
  // arrays explicitly if they're unresolved, or else the cycles will be
914
2.03k
  // orphaned.
915
2.03k
  
if (2.03k
Elements2.03k
)
916
951
    trackIfUnresolved(Elements.get());
917
2.03k
  if (TParams)
918
283
    trackIfUnresolved(TParams.get());
919
2.08k
}