clang  3.7.0
CGDebugInfo.h
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1 //===--- CGDebugInfo.h - DebugInfo for LLVM CodeGen -------------*- C++ -*-===//
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 is the source-level debug info generator for llvm translation.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_CLANG_LIB_CODEGEN_CGDEBUGINFO_H
15 #define LLVM_CLANG_LIB_CODEGEN_CGDEBUGINFO_H
16 
17 #include "CGBuilder.h"
18 #include "clang/AST/Expr.h"
19 #include "clang/AST/Type.h"
22 #include "llvm/ADT/DenseMap.h"
23 #include "llvm/IR/DIBuilder.h"
24 #include "llvm/IR/DebugInfo.h"
25 #include "llvm/IR/ValueHandle.h"
26 #include "llvm/Support/Allocator.h"
27 
28 namespace llvm {
29 class MDNode;
30 }
31 
32 namespace clang {
33 class CXXMethodDecl;
34 class VarDecl;
35 class ObjCInterfaceDecl;
36 class ObjCIvarDecl;
37 class ClassTemplateSpecializationDecl;
38 class GlobalDecl;
39 class UsingDecl;
40 
41 namespace CodeGen {
42 class CodeGenModule;
43 class CodeGenFunction;
44 class CGBlockInfo;
45 
46 /// This class gathers all debug information during compilation and is
47 /// responsible for emitting to llvm globals or pass directly to the
48 /// backend.
49 class CGDebugInfo {
50  friend class ApplyDebugLocation;
51  friend class SaveAndRestoreLocation;
52  CodeGenModule &CGM;
53  const CodeGenOptions::DebugInfoKind DebugKind;
54  llvm::DIBuilder DBuilder;
55  llvm::DICompileUnit *TheCU = nullptr;
56  SourceLocation CurLoc;
57  llvm::DIType *VTablePtrType = nullptr;
58  llvm::DIType *ClassTy = nullptr;
59  llvm::DICompositeType *ObjTy = nullptr;
60  llvm::DIType *SelTy = nullptr;
61  llvm::DIType *OCLImage1dDITy = nullptr;
62  llvm::DIType *OCLImage1dArrayDITy = nullptr;
63  llvm::DIType *OCLImage1dBufferDITy = nullptr;
64  llvm::DIType *OCLImage2dDITy = nullptr;
65  llvm::DIType *OCLImage2dArrayDITy = nullptr;
66  llvm::DIType *OCLImage3dDITy = nullptr;
67  llvm::DIType *OCLEventDITy = nullptr;
68 
69  /// Cache of previously constructed Types.
70  llvm::DenseMap<const void *, llvm::TrackingMDRef> TypeCache;
71 
72  struct ObjCInterfaceCacheEntry {
73  const ObjCInterfaceType *Type;
74  llvm::DIType *Decl;
75  llvm::DIFile *Unit;
76  ObjCInterfaceCacheEntry(const ObjCInterfaceType *Type, llvm::DIType *Decl,
77  llvm::DIFile *Unit)
78  : Type(Type), Decl(Decl), Unit(Unit) {}
79  };
80 
81  /// Cache of previously constructed interfaces which may change.
83 
84  /// Cache of references to AST files such as PCHs or modules.
85  llvm::DenseMap<uint64_t, llvm::DIModule *> ModuleRefCache;
86 
87  /// List of interfaces we want to keep even if orphaned.
88  std::vector<void *> RetainedTypes;
89 
90  /// Cache of forward declared types to RAUW at the end of
91  /// compilation.
92  std::vector<std::pair<const TagType *, llvm::TrackingMDRef>> ReplaceMap;
93 
94  /// Cache of replaceable forward declarartions (functions and
95  /// variables) to RAUW at the end of compilation.
96  std::vector<std::pair<const DeclaratorDecl *, llvm::TrackingMDRef>>
97  FwdDeclReplaceMap;
98 
99  /// Keep track of our current nested lexical block.
100  std::vector<llvm::TypedTrackingMDRef<llvm::DIScope>> LexicalBlockStack;
101  llvm::DenseMap<const Decl *, llvm::TrackingMDRef> RegionMap;
102  /// Keep track of LexicalBlockStack counter at the beginning of a
103  /// function. This is used to pop unbalanced regions at the end of a
104  /// function.
105  std::vector<unsigned> FnBeginRegionCount;
106 
107  /// This is a storage for names that are constructed on demand. For
108  /// example, C++ destructors, C++ operators etc..
109  llvm::BumpPtrAllocator DebugInfoNames;
110  StringRef CWDName;
111 
112  llvm::DenseMap<const char *, llvm::TrackingMDRef> DIFileCache;
113  llvm::DenseMap<const FunctionDecl *, llvm::TrackingMDRef> SPCache;
114  /// Cache declarations relevant to DW_TAG_imported_declarations (C++
115  /// using declarations) that aren't covered by other more specific caches.
116  llvm::DenseMap<const Decl *, llvm::TrackingMDRef> DeclCache;
117  llvm::DenseMap<const NamespaceDecl *, llvm::TrackingMDRef> NameSpaceCache;
118  llvm::DenseMap<const NamespaceAliasDecl *, llvm::TrackingMDRef>
119  NamespaceAliasCache;
120  llvm::DenseMap<const Decl *, llvm::TrackingMDRef> StaticDataMemberCache;
121 
122  /// Helper functions for getOrCreateType.
123  /// @{
124  /// Currently the checksum of an interface includes the number of
125  /// ivars and property accessors.
126  unsigned Checksum(const ObjCInterfaceDecl *InterfaceDecl);
127  llvm::DIType *CreateType(const BuiltinType *Ty);
128  llvm::DIType *CreateType(const ComplexType *Ty);
129  llvm::DIType *CreateQualifiedType(QualType Ty, llvm::DIFile *Fg);
130  llvm::DIType *CreateType(const TypedefType *Ty, llvm::DIFile *Fg);
131  llvm::DIType *CreateType(const TemplateSpecializationType *Ty,
132  llvm::DIFile *Fg);
133  llvm::DIType *CreateType(const ObjCObjectPointerType *Ty, llvm::DIFile *F);
134  llvm::DIType *CreateType(const PointerType *Ty, llvm::DIFile *F);
135  llvm::DIType *CreateType(const BlockPointerType *Ty, llvm::DIFile *F);
136  llvm::DIType *CreateType(const FunctionType *Ty, llvm::DIFile *F);
137  /// Get structure or union type.
138  llvm::DIType *CreateType(const RecordType *Tyg);
139  llvm::DIType *CreateTypeDefinition(const RecordType *Ty);
140  llvm::DICompositeType *CreateLimitedType(const RecordType *Ty);
141  void CollectContainingType(const CXXRecordDecl *RD,
142  llvm::DICompositeType *CT);
143  /// Get Objective-C interface type.
144  llvm::DIType *CreateType(const ObjCInterfaceType *Ty, llvm::DIFile *F);
145  llvm::DIType *CreateTypeDefinition(const ObjCInterfaceType *Ty,
146  llvm::DIFile *F);
147  /// Get Objective-C object type.
148  llvm::DIType *CreateType(const ObjCObjectType *Ty, llvm::DIFile *F);
149  llvm::DIType *CreateType(const VectorType *Ty, llvm::DIFile *F);
150  llvm::DIType *CreateType(const ArrayType *Ty, llvm::DIFile *F);
151  llvm::DIType *CreateType(const LValueReferenceType *Ty, llvm::DIFile *F);
152  llvm::DIType *CreateType(const RValueReferenceType *Ty, llvm::DIFile *Unit);
153  llvm::DIType *CreateType(const MemberPointerType *Ty, llvm::DIFile *F);
154  llvm::DIType *CreateType(const AtomicType *Ty, llvm::DIFile *F);
155  /// Get enumeration type.
156  llvm::DIType *CreateEnumType(const EnumType *Ty);
157  llvm::DIType *CreateTypeDefinition(const EnumType *Ty);
158  /// Look up the completed type for a self pointer in the TypeCache and
159  /// create a copy of it with the ObjectPointer and Artificial flags
160  /// set. If the type is not cached, a new one is created. This should
161  /// never happen though, since creating a type for the implicit self
162  /// argument implies that we already parsed the interface definition
163  /// and the ivar declarations in the implementation.
164  llvm::DIType *CreateSelfType(const QualType &QualTy, llvm::DIType *Ty);
165  /// @}
166 
167  /// Get the type from the cache or return null type if it doesn't
168  /// exist.
169  llvm::DIType *getTypeOrNull(const QualType);
170  /// Return the debug type for a C++ method.
171  /// \arg CXXMethodDecl is of FunctionType. This function type is
172  /// not updated to include implicit \c this pointer. Use this routine
173  /// to get a method type which includes \c this pointer.
174  llvm::DISubroutineType *getOrCreateMethodType(const CXXMethodDecl *Method,
175  llvm::DIFile *F);
176  llvm::DISubroutineType *
177  getOrCreateInstanceMethodType(QualType ThisPtr, const FunctionProtoType *Func,
178  llvm::DIFile *Unit);
179  llvm::DISubroutineType *
180  getOrCreateFunctionType(const Decl *D, QualType FnType, llvm::DIFile *F);
181  /// \return debug info descriptor for vtable.
182  llvm::DIType *getOrCreateVTablePtrType(llvm::DIFile *F);
183  /// \return namespace descriptor for the given namespace decl.
184  llvm::DINamespace *getOrCreateNameSpace(const NamespaceDecl *N);
185  llvm::DIType *getOrCreateTypeDeclaration(QualType PointeeTy, llvm::DIFile *F);
186  llvm::DIType *CreatePointerLikeType(llvm::dwarf::Tag Tag, const Type *Ty,
187  QualType PointeeTy, llvm::DIFile *F);
188 
189  llvm::Value *getCachedInterfaceTypeOrNull(const QualType Ty);
190  llvm::DIType *getOrCreateStructPtrType(StringRef Name, llvm::DIType *&Cache);
191 
192  /// A helper function to create a subprogram for a single member
193  /// function GlobalDecl.
194  llvm::DISubprogram *CreateCXXMemberFunction(const CXXMethodDecl *Method,
195  llvm::DIFile *F,
196  llvm::DIType *RecordTy);
197 
198  /// A helper function to collect debug info for C++ member
199  /// functions. This is used while creating debug info entry for a
200  /// Record.
201  void CollectCXXMemberFunctions(const CXXRecordDecl *Decl, llvm::DIFile *F,
203  llvm::DIType *T);
204 
205  /// A helper function to collect debug info for C++ base
206  /// classes. This is used while creating debug info entry for a
207  /// Record.
208  void CollectCXXBases(const CXXRecordDecl *Decl, llvm::DIFile *F,
210  llvm::DIType *RecordTy);
211 
212  /// A helper function to collect template parameters.
213  llvm::DINodeArray CollectTemplateParams(const TemplateParameterList *TPList,
215  llvm::DIFile *Unit);
216  /// A helper function to collect debug info for function template
217  /// parameters.
218  llvm::DINodeArray CollectFunctionTemplateParams(const FunctionDecl *FD,
219  llvm::DIFile *Unit);
220 
221  /// A helper function to collect debug info for template
222  /// parameters.
223  llvm::DINodeArray
224  CollectCXXTemplateParams(const ClassTemplateSpecializationDecl *TS,
225  llvm::DIFile *F);
226 
227  llvm::DIType *createFieldType(StringRef name, QualType type,
228  uint64_t sizeInBitsOverride, SourceLocation loc,
229  AccessSpecifier AS, uint64_t offsetInBits,
230  llvm::DIFile *tunit, llvm::DIScope *scope,
231  const RecordDecl *RD = nullptr);
232 
233  /// Helpers for collecting fields of a record.
234  /// @{
235  void CollectRecordLambdaFields(const CXXRecordDecl *CXXDecl,
237  llvm::DIType *RecordTy);
238  llvm::DIDerivedType *CreateRecordStaticField(const VarDecl *Var,
239  llvm::DIType *RecordTy,
240  const RecordDecl *RD);
241  void CollectRecordNormalField(const FieldDecl *Field, uint64_t OffsetInBits,
242  llvm::DIFile *F,
244  llvm::DIType *RecordTy, const RecordDecl *RD);
245  void CollectRecordFields(const RecordDecl *Decl, llvm::DIFile *F,
247  llvm::DICompositeType *RecordTy);
248 
249  /// If the C++ class has vtable info then insert appropriate debug
250  /// info entry in EltTys vector.
251  void CollectVTableInfo(const CXXRecordDecl *Decl, llvm::DIFile *F,
253  /// @}
254 
255  /// Create a new lexical block node and push it on the stack.
256  void CreateLexicalBlock(SourceLocation Loc);
257 
258 public:
259  CGDebugInfo(CodeGenModule &CGM);
260  ~CGDebugInfo();
261 
262  void finalize();
263 
264  /// Update the current source location. If \arg loc is invalid it is
265  /// ignored.
266  void setLocation(SourceLocation Loc);
267 
268  /// Emit metadata to indicate a change in line/column information in
269  /// the source file. If the location is invalid, the previous
270  /// location will be reused.
272 
273  /// Emit a call to llvm.dbg.function.start to indicate
274  /// start of a new function.
275  /// \param Loc The location of the function header.
276  /// \param ScopeLoc The location of the function body.
278  SourceLocation ScopeLoc, QualType FnType,
279  llvm::Function *Fn, CGBuilderTy &Builder);
280 
281  /// Constructs the debug code for exiting a function.
283 
284  /// Emit metadata to indicate the beginning of a new lexical block
285  /// and push the block onto the stack.
287 
288  /// Emit metadata to indicate the end of a new lexical block and pop
289  /// the current block.
291 
292  /// Emit call to \c llvm.dbg.declare for an automatic variable
293  /// declaration.
296 
297  /// Emit call to \c llvm.dbg.declare for an imported variable
298  /// declaration in a block.
299  void EmitDeclareOfBlockDeclRefVariable(const VarDecl *variable,
300  llvm::Value *storage,
302  const CGBlockInfo &blockInfo,
303  llvm::Instruction *InsertPoint = 0);
304 
305  /// Emit call to \c llvm.dbg.declare for an argument variable
306  /// declaration.
308  unsigned ArgNo, CGBuilderTy &Builder);
309 
310  /// Emit call to \c llvm.dbg.declare for the block-literal argument
311  /// to a block invocation function.
312  void EmitDeclareOfBlockLiteralArgVariable(const CGBlockInfo &block,
313  llvm::Value *Arg, unsigned ArgNo,
314  llvm::Value *LocalAddr,
316 
317  /// Emit information about a global variable.
318  void EmitGlobalVariable(llvm::GlobalVariable *GV, const VarDecl *Decl);
319 
320  /// Emit global variable's debug info.
321  void EmitGlobalVariable(const ValueDecl *VD, llvm::Constant *Init);
322 
323  /// Emit C++ using directive.
324  void EmitUsingDirective(const UsingDirectiveDecl &UD);
325 
326  /// Emit the type explicitly casted to.
328 
329  /// Emit C++ using declaration.
330  void EmitUsingDecl(const UsingDecl &UD);
331 
332  /// Emit an @import declaration.
333  void EmitImportDecl(const ImportDecl &ID);
334 
335  /// Emit C++ namespace alias.
336  llvm::DIImportedEntity *EmitNamespaceAlias(const NamespaceAliasDecl &NA);
337 
338  /// Emit record type's standalone debug info.
339  llvm::DIType *getOrCreateRecordType(QualType Ty, SourceLocation L);
340 
341  /// Emit an Objective-C interface type standalone debug info.
342  llvm::DIType *getOrCreateInterfaceType(QualType Ty, SourceLocation Loc);
343 
344  void completeType(const EnumDecl *ED);
345  void completeType(const RecordDecl *RD);
346  void completeRequiredType(const RecordDecl *RD);
347  void completeClassData(const RecordDecl *RD);
348 
350 
351 private:
352  /// Emit call to llvm.dbg.declare for a variable declaration.
353  /// Tag accepts custom types DW_TAG_arg_variable and DW_TAG_auto_variable,
354  /// otherwise would be of type llvm::dwarf::Tag.
355  void EmitDeclare(const VarDecl *decl, llvm::dwarf::Tag Tag, llvm::Value *AI,
356  unsigned ArgNo, CGBuilderTy &Builder);
357 
358  /// Build up structure info for the byref. See \a BuildByRefType.
359  llvm::DIType *EmitTypeForVarWithBlocksAttr(const VarDecl *VD,
360  uint64_t *OffSet);
361 
362  /// Get context info for the decl.
363  llvm::DIScope *getContextDescriptor(const Decl *Decl);
364 
365  llvm::DIScope *getCurrentContextDescriptor(const Decl *Decl);
366 
367  /// Create a forward decl for a RecordType in a given context.
368  llvm::DICompositeType *getOrCreateRecordFwdDecl(const RecordType *,
369  llvm::DIScope *);
370 
371  /// Return current directory name.
372  StringRef getCurrentDirname();
373 
374  /// Create new compile unit.
375  void CreateCompileUnit();
376 
377  /// Get the file debug info descriptor for the input location.
378  llvm::DIFile *getOrCreateFile(SourceLocation Loc);
379 
380  /// Get the file info for main compile unit.
381  llvm::DIFile *getOrCreateMainFile();
382 
383  /// Get the type from the cache or create a new type if necessary.
384  llvm::DIType *getOrCreateType(QualType Ty, llvm::DIFile *Fg);
385 
386  /// Get a reference to a clang module.
387  llvm::DIModule *
388  getOrCreateModuleRef(ExternalASTSource::ASTSourceDescriptor Mod);
389 
390  /// Get the type from the cache or create a new partial type if
391  /// necessary.
392  llvm::DIType *getOrCreateLimitedType(const RecordType *Ty, llvm::DIFile *F);
393 
394  /// Create type metadata for a source language type.
395  llvm::DIType *CreateTypeNode(QualType Ty, llvm::DIFile *Fg);
396 
397  /// Return the underlying ObjCInterfaceDecl if \arg Ty is an
398  /// ObjCInterface or a pointer to one.
399  ObjCInterfaceDecl *getObjCInterfaceDecl(QualType Ty);
400 
401  /// Create new member and increase Offset by FType's size.
402  llvm::DIType *CreateMemberType(llvm::DIFile *Unit, QualType FType,
403  StringRef Name, uint64_t *Offset);
404 
405  /// Retrieve the DIDescriptor, if any, for the canonical form of this
406  /// declaration.
407  llvm::DINode *getDeclarationOrDefinition(const Decl *D);
408 
409  /// \return debug info descriptor to describe method
410  /// declaration for the given method definition.
411  llvm::DISubprogram *getFunctionDeclaration(const Decl *D);
412 
413  /// \return debug info descriptor to describe in-class static data
414  /// member declaration for the given out-of-class definition. If D
415  /// is an out-of-class definition of a static data member of a
416  /// class, find its corresponding in-class declaration.
417  llvm::DIDerivedType *
418  getOrCreateStaticDataMemberDeclarationOrNull(const VarDecl *D);
419 
420  /// Create a subprogram describing the forward declaration
421  /// represented in the given FunctionDecl.
422  llvm::DISubprogram *getFunctionForwardDeclaration(const FunctionDecl *FD);
423 
424  /// Create a global variable describing the forward decalration
425  /// represented in the given VarDecl.
426  llvm::DIGlobalVariable *
427  getGlobalVariableForwardDeclaration(const VarDecl *VD);
428 
429  /// \brief Return a global variable that represents one of the
430  /// collection of global variables created for an anonmyous union.
431  ///
432  /// Recursively collect all of the member fields of a global
433  /// anonymous decl and create static variables for them. The first
434  /// time this is called it needs to be on a union and then from
435  /// there we can have additional unnamed fields.
436  llvm::DIGlobalVariable *
437  CollectAnonRecordDecls(const RecordDecl *RD, llvm::DIFile *Unit,
438  unsigned LineNo, StringRef LinkageName,
439  llvm::GlobalVariable *Var, llvm::DIScope *DContext);
440 
441  /// Get function name for the given FunctionDecl. If the name is
442  /// constructed on demand (e.g., C++ destructor) then the name is
443  /// stored on the side.
444  StringRef getFunctionName(const FunctionDecl *FD);
445 
446  /// Returns the unmangled name of an Objective-C method.
447  /// This is the display name for the debugging info.
448  StringRef getObjCMethodName(const ObjCMethodDecl *FD);
449 
450  /// Return selector name. This is used for debugging
451  /// info.
452  StringRef getSelectorName(Selector S);
453 
454  /// Get class name including template argument list.
455  StringRef getClassName(const RecordDecl *RD);
456 
457  /// Get the vtable name for the given class.
458  StringRef getVTableName(const CXXRecordDecl *Decl);
459 
460  /// Get line number for the location. If location is invalid
461  /// then use current location.
462  unsigned getLineNumber(SourceLocation Loc);
463 
464  /// Get column number for the location. If location is
465  /// invalid then use current location.
466  /// \param Force Assume DebugColumnInfo option is true.
467  unsigned getColumnNumber(SourceLocation Loc, bool Force = false);
468 
469  /// Collect various properties of a FunctionDecl.
470  /// \param GD A GlobalDecl whose getDecl() must return a FunctionDecl.
471  void collectFunctionDeclProps(GlobalDecl GD, llvm::DIFile *Unit,
472  StringRef &Name, StringRef &LinkageName,
473  llvm::DIScope *&FDContext,
474  llvm::DINodeArray &TParamsArray,
475  unsigned &Flags);
476 
477  /// Collect various properties of a VarDecl.
478  void collectVarDeclProps(const VarDecl *VD, llvm::DIFile *&Unit,
479  unsigned &LineNo, QualType &T, StringRef &Name,
480  StringRef &LinkageName, llvm::DIScope *&VDContext);
481 
482  /// Allocate a copy of \p A using the DebugInfoNames allocator
483  /// and return a reference to it. If multiple arguments are given the strings
484  /// are concatenated.
485  StringRef internString(StringRef A, StringRef B = StringRef()) {
486  char *Data = DebugInfoNames.Allocate<char>(A.size() + B.size());
487  if (!A.empty())
488  std::memcpy(Data, A.data(), A.size());
489  if (!B.empty())
490  std::memcpy(Data + A.size(), B.data(), B.size());
491  return StringRef(Data, A.size() + B.size());
492  }
493 };
494 
495 /// A scoped helper to set the current debug location to the specified
496 /// location or preferred location of the specified Expr.
498 private:
499  void init(SourceLocation TemporaryLocation, bool DefaultToEmpty = false);
500  ApplyDebugLocation(CodeGenFunction &CGF, bool DefaultToEmpty,
501  SourceLocation TemporaryLocation);
502 
503  llvm::DebugLoc OriginalLocation;
504  CodeGenFunction &CGF;
505 
506 public:
507  /// Set the location to the (valid) TemporaryLocation.
508  ApplyDebugLocation(CodeGenFunction &CGF, SourceLocation TemporaryLocation);
509  ApplyDebugLocation(CodeGenFunction &CGF, const Expr *E);
510  ApplyDebugLocation(CodeGenFunction &CGF, llvm::DebugLoc Loc);
511 
513 
514  /// \brief Apply TemporaryLocation if it is valid. Otherwise switch
515  /// to an artificial debug location that has a valid scope, but no
516  /// line information.
517  ///
518  /// Artificial locations are useful when emitting compiler-generated
519  /// helper functions that have no source location associated with
520  /// them. The DWARF specification allows the compiler to use the
521  /// special line number 0 to indicate code that can not be
522  /// attributed to any source location. Note that passing an empty
523  /// SourceLocation to CGDebugInfo::setLocation() will result in the
524  /// last valid location being reused.
526  return ApplyDebugLocation(CGF, false, SourceLocation());
527  }
528  /// \brief Apply TemporaryLocation if it is valid. Otherwise switch
529  /// to an artificial debug location that has a valid scope, but no
530  /// line information.
531  static ApplyDebugLocation
533  SourceLocation TemporaryLocation) {
534  return ApplyDebugLocation(CGF, false, TemporaryLocation);
535  }
536 
537  /// Set the IRBuilder to not attach debug locations. Note that
538  /// passing an empty SourceLocation to \a CGDebugInfo::setLocation()
539  /// will result in the last valid location being reused. Note that
540  /// all instructions that do not have a location at the beginning of
541  /// a function are counted towards to funciton prologue.
543  return ApplyDebugLocation(CGF, true, SourceLocation());
544  }
545 
546  /// \brief Apply TemporaryLocation if it is valid. Otherwise set the IRBuilder
547  /// to not attach debug locations.
548  static ApplyDebugLocation
550  return ApplyDebugLocation(CGF, true, TemporaryLocation);
551  }
552 };
553 
554 } // namespace CodeGen
555 } // namespace clang
556 
557 #endif
void EmitDeclareOfBlockLiteralArgVariable(const CGBlockInfo &block, llvm::Value *Arg, unsigned ArgNo, llvm::Value *LocalAddr, CGBuilderTy &Builder)
Smart pointer class that efficiently represents Objective-C method names.
void EmitExplicitCastType(QualType Ty)
Emit the type explicitly casted to.
llvm::DIType * getOrCreateRecordType(QualType Ty, SourceLocation L)
Emit record type's standalone debug info.
void EmitLexicalBlockEnd(CGBuilderTy &Builder, SourceLocation Loc)
NamespaceDecl - Represent a C++ namespace.
Definition: Decl.h:400
AccessSpecifier
A C++ access specifier (public, private, protected), plus the special value "none" which means differ...
Definition: Specifiers.h:83
void EmitDeclareOfAutoVariable(const VarDecl *Decl, llvm::Value *AI, CGBuilderTy &Builder)
Stores a list of template parameters for a TemplateDecl and its derived classes.
Definition: DeclTemplate.h:46
void completeTemplateDefinition(const ClassTemplateSpecializationDecl &SD)
Represents a class template specialization, which refers to a class template with a given set of temp...
void EmitImportDecl(const ImportDecl &ID)
Emit an declaration.
const internal::VariadicAllOfMatcher< Decl > decl
Matches declarations.
Definition: ASTMatchers.h:258
void completeClassData(const RecordDecl *RD)
static ApplyDebugLocation CreateArtificial(CodeGenFunction &CGF)
Apply TemporaryLocation if it is valid. Otherwise switch to an artificial debug location that has a v...
Definition: CGDebugInfo.h:525
void EmitDeclareOfBlockDeclRefVariable(const VarDecl *variable, llvm::Value *storage, CGBuilderTy &Builder, const CGBlockInfo &blockInfo, llvm::Instruction *InsertPoint=0)
Represents a C++ using-declaration.
Definition: DeclCXX.h:2871
friend class SaveAndRestoreLocation
Definition: CGDebugInfo.h:51
uint32_t Offset
Definition: CacheTokens.cpp:43
void EmitGlobalVariable(llvm::GlobalVariable *GV, const VarDecl *Decl)
Emit information about a global variable.
llvm::DIType * getOrCreateInterfaceType(QualType Ty, SourceLocation Loc)
Emit an Objective-C interface type standalone debug info.
llvm::DIImportedEntity * EmitNamespaceAlias(const NamespaceAliasDecl &NA)
Emit C++ namespace alias.
Represents an ObjC class declaration.
Definition: DeclObjC.h:851
ID
Defines the set of possible language-specific address spaces.
Definition: AddressSpaces.h:27
void EmitLocation(CGBuilderTy &Builder, SourceLocation Loc)
llvm::IRBuilder< PreserveNames, llvm::ConstantFolder, CGBuilderInserterTy > CGBuilderTy
Definition: CGBuilder.h:49
void EmitDeclareOfArgVariable(const VarDecl *Decl, llvm::Value *AI, unsigned ArgNo, CGBuilderTy &Builder)
Encodes a location in the source. The SourceManager can decode this to get at the full include stack...
void completeRequiredType(const RecordDecl *RD)
Represents a static or instance method of a struct/union/class.
Definition: DeclCXX.h:1717
Describes a module import declaration, which makes the contents of the named module visible in the cu...
Definition: Decl.h:3704
static ApplyDebugLocation CreateDefaultArtificial(CodeGenFunction &CGF, SourceLocation TemporaryLocation)
Apply TemporaryLocation if it is valid. Otherwise switch to an artificial debug location that has a v...
Definition: CGDebugInfo.h:532
const internal::VariadicAllOfMatcher< Type > type
Matches Types in the clang AST.
Definition: ASTMatchers.h:1639
CGDebugInfo(CodeGenModule &CGM)
Definition: CGDebugInfo.cpp:46
static ApplyDebugLocation CreateDefaultEmpty(CodeGenFunction &CGF, SourceLocation TemporaryLocation)
Apply TemporaryLocation if it is valid. Otherwise set the IRBuilder to not attach debug locations...
Definition: CGDebugInfo.h:549
void completeType(const EnumDecl *ED)
void EmitUsingDecl(const UsingDecl &UD)
Emit C++ using declaration.
void EmitUsingDirective(const UsingDirectiveDecl &UD)
Emit C++ using directive.
void EmitLexicalBlockStart(CGBuilderTy &Builder, SourceLocation Loc)
Defines the clang::SourceLocation class and associated facilities.
Represents a C++ struct/union/class.
Definition: DeclCXX.h:285
BoundNodesTreeBuilder *const Builder
void EmitFunctionStart(GlobalDecl GD, SourceLocation Loc, SourceLocation ScopeLoc, QualType FnType, llvm::Function *Fn, CGBuilderTy &Builder)
void setLocation(SourceLocation Loc)
Represents a type template specialization; the template must be a class template, a type alias templa...
Definition: Type.h:3941
static ApplyDebugLocation CreateEmpty(CodeGenFunction &CGF)
Definition: CGDebugInfo.h:542
Represents a C++ namespace alias.
Definition: DeclCXX.h:2662
Represents C++ using-directive.
Definition: DeclCXX.h:2559
void EmitFunctionEnd(CGBuilderTy &Builder)
Constructs the debug code for exiting a function.
Holds everything needed to generate debug info for an imported module or precompiled header file...