diff options
Diffstat (limited to 'clang/lib/CodeGen/CGDebugInfo.h')
| -rw-r--r-- | clang/lib/CodeGen/CGDebugInfo.h | 44 |
1 files changed, 29 insertions, 15 deletions
diff --git a/clang/lib/CodeGen/CGDebugInfo.h b/clang/lib/CodeGen/CGDebugInfo.h index a76426e585c8..38e3fa5b2fa9 100644 --- a/clang/lib/CodeGen/CGDebugInfo.h +++ b/clang/lib/CodeGen/CGDebugInfo.h @@ -152,8 +152,10 @@ class CGDebugInfo { llvm::DenseMap<const char *, llvm::TrackingMDRef> DIFileCache; llvm::DenseMap<const FunctionDecl *, llvm::TrackingMDRef> SPCache; /// Cache declarations relevant to DW_TAG_imported_declarations (C++ - /// using declarations) that aren't covered by other more specific caches. + /// using declarations and global alias variables) that aren't covered + /// by other more specific caches. llvm::DenseMap<const Decl *, llvm::TrackingMDRef> DeclCache; + llvm::DenseMap<const Decl *, llvm::TrackingMDRef> ImportedDeclCache; llvm::DenseMap<const NamespaceDecl *, llvm::TrackingMDRef> NamespaceCache; llvm::DenseMap<const NamespaceAliasDecl *, llvm::TrackingMDRef> NamespaceAliasCache; @@ -177,19 +179,16 @@ class CGDebugInfo { llvm::DIType *CreateType(const ComplexType *Ty); llvm::DIType *CreateType(const AutoType *Ty); llvm::DIType *CreateType(const BitIntType *Ty); - llvm::DIType *CreateQualifiedType(QualType Ty, llvm::DIFile *Fg, - TypeLoc TL = TypeLoc()); + llvm::DIType *CreateQualifiedType(QualType Ty, llvm::DIFile *Fg); llvm::DIType *CreateQualifiedType(const FunctionProtoType *Ty, llvm::DIFile *Fg); llvm::DIType *CreateType(const TypedefType *Ty, llvm::DIFile *Fg); llvm::DIType *CreateType(const TemplateSpecializationType *Ty, llvm::DIFile *Fg); llvm::DIType *CreateType(const ObjCObjectPointerType *Ty, llvm::DIFile *F); - llvm::DIType *CreateType(const PointerType *Ty, llvm::DIFile *F, - TypeLoc TL = TypeLoc()); + llvm::DIType *CreateType(const PointerType *Ty, llvm::DIFile *F); llvm::DIType *CreateType(const BlockPointerType *Ty, llvm::DIFile *F); - llvm::DIType *CreateType(const FunctionType *Ty, llvm::DIFile *F, - TypeLoc TL = TypeLoc()); + llvm::DIType *CreateType(const FunctionType *Ty, llvm::DIFile *F); /// Get structure or union type. llvm::DIType *CreateType(const RecordType *Tyg); llvm::DIType *CreateTypeDefinition(const RecordType *Ty); @@ -244,8 +243,7 @@ class CGDebugInfo { /// \return namespace descriptor for the given namespace decl. llvm::DINamespace *getOrCreateNamespace(const NamespaceDecl *N); llvm::DIType *CreatePointerLikeType(llvm::dwarf::Tag Tag, const Type *Ty, - QualType PointeeTy, llvm::DIFile *F, - TypeLoc TL = TypeLoc()); + QualType PointeeTy, llvm::DIFile *F); llvm::DIType *getOrCreateStructPtrType(StringRef Name, llvm::DIType *&Cache); /// A helper function to create a subprogram for a single member @@ -311,8 +309,7 @@ class CGDebugInfo { uint64_t offsetInBits, uint32_t AlignInBits, llvm::DIFile *tunit, llvm::DIScope *scope, const RecordDecl *RD = nullptr, - llvm::DINodeArray Annotations = nullptr, - TypeLoc TL = TypeLoc()); + llvm::DINodeArray Annotations = nullptr); llvm::DIType *createFieldType(StringRef name, QualType type, SourceLocation loc, AccessSpecifier AS, @@ -512,6 +509,9 @@ public: /// Emit information about an external variable. void EmitExternalVariable(llvm::GlobalVariable *GV, const VarDecl *Decl); + /// Emit information about global variable alias. + void EmitGlobalAlias(const llvm::GlobalValue *GV, const GlobalDecl Decl); + /// Emit C++ using directive. void EmitUsingDirective(const UsingDirectiveDecl &UD); @@ -533,6 +533,14 @@ public: /// Emit an @import declaration. void EmitImportDecl(const ImportDecl &ID); + /// DebugInfo isn't attached to string literals by default. While certain + /// aspects of debuginfo aren't useful for string literals (like a name), it's + /// nice to be able to symbolize the line and column information. This is + /// especially useful for sanitizers, as it allows symbolization of + /// heap-buffer-overflows on constant strings. + void AddStringLiteralDebugInfo(llvm::GlobalVariable *GV, + const StringLiteral *S); + /// Emit C++ namespace alias. llvm::DIImportedEntity *EmitNamespaceAlias(const NamespaceAliasDecl &NA); @@ -583,6 +591,14 @@ private: CGBuilderTy &Builder, const bool UsePointerValue = false); + /// Emit call to llvm.dbg.declare for a binding declaration. + /// Returns a pointer to the DILocalVariable associated with the + /// llvm.dbg.declare, or nullptr otherwise. + llvm::DILocalVariable *EmitDeclare(const BindingDecl *decl, llvm::Value *AI, + llvm::Optional<unsigned> ArgNo, + CGBuilderTy &Builder, + const bool UsePointerValue = false); + struct BlockByRefType { /// The wrapper struct used inside the __block_literal struct. llvm::DIType *BlockByRefWrapper; @@ -632,8 +648,7 @@ private: Optional<StringRef> Source); /// Get the type from the cache or create a new type if necessary. - llvm::DIType *getOrCreateType(QualType Ty, llvm::DIFile *Fg, - TypeLoc TL = TypeLoc()); + llvm::DIType *getOrCreateType(QualType Ty, llvm::DIFile *Fg); /// Get a reference to a clang module. If \p CreateSkeletonCU is true, /// this also creates a split dwarf skeleton compile unit. @@ -648,8 +663,7 @@ private: llvm::DICompositeType *getOrCreateLimitedType(const RecordType *Ty); /// Create type metadata for a source language type. - llvm::DIType *CreateTypeNode(QualType Ty, llvm::DIFile *Fg, - TypeLoc TL = TypeLoc()); + llvm::DIType *CreateTypeNode(QualType Ty, llvm::DIFile *Fg); /// Create new member and increase Offset by FType's size. llvm::DIType *CreateMemberType(llvm::DIFile *Unit, QualType FType, |