| //===--- CGDebugInfo.cpp - Emit Debug Information for a Module ------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This coordinates the debug information generation while generating code. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "CGDebugInfo.h" |
| #include "CodeGenModule.h" |
| #include "clang/AST/ASTContext.h" |
| #include "clang/AST/Decl.h" |
| #include "clang/AST/Expr.h" |
| #include "clang/AST/RecordLayout.h" |
| #include "clang/Basic/SourceManager.h" |
| #include "clang/Basic/FileManager.h" |
| #include "llvm/Constants.h" |
| #include "llvm/DerivedTypes.h" |
| #include "llvm/Instructions.h" |
| #include "llvm/Intrinsics.h" |
| #include "llvm/Module.h" |
| #include "llvm/ADT/StringExtras.h" |
| #include "llvm/ADT/SmallVector.h" |
| #include "llvm/Support/Dwarf.h" |
| #include "llvm/Target/TargetMachine.h" |
| using namespace clang; |
| using namespace clang::CodeGen; |
| |
| CGDebugInfo::CGDebugInfo(CodeGenModule *m) |
| : M(m), DebugFactory(M->getModule()) { |
| } |
| |
| CGDebugInfo::~CGDebugInfo() { |
| assert(RegionStack.empty() && "Region stack mismatch, stack not empty!"); |
| } |
| |
| void CGDebugInfo::setLocation(SourceLocation Loc) { |
| if (Loc.isValid()) |
| CurLoc = M->getContext().getSourceManager().getInstantiationLoc(Loc); |
| } |
| |
| /// getOrCreateCompileUnit - Get the compile unit from the cache or create a new |
| /// one if necessary. This returns null for invalid source locations. |
| llvm::DICompileUnit CGDebugInfo::getOrCreateCompileUnit(SourceLocation Loc) { |
| if (Loc.isInvalid()) |
| return llvm::DICompileUnit(); |
| |
| SourceManager &SM = M->getContext().getSourceManager(); |
| const FileEntry *FE = SM.getFileEntryForLoc(Loc); |
| if (FE == 0) return llvm::DICompileUnit(); |
| |
| // See if this compile unit has been used before. |
| llvm::DICompileUnit &Unit = CompileUnitCache[FE]; |
| if (!Unit.isNull()) return Unit; |
| |
| // Get source file information. |
| const char *FileName = FE->getName(); |
| const char *DirName = FE->getDir()->getName(); |
| |
| // Create new compile unit. |
| // FIXME: Handle other language IDs as well. |
| // FIXME: Do not know how to get clang version yet. |
| return Unit = DebugFactory.CreateCompileUnit(llvm::dwarf::DW_LANG_C89, |
| FileName, DirName, "clang"); |
| } |
| |
| /// getOrCreateBuiltinType - Get the Basic type from the cache or create a new |
| /// one if necessary. |
| llvm::DIType CGDebugInfo::CreateType(const BuiltinType *BT, |
| llvm::DICompileUnit Unit){ |
| unsigned Encoding = 0; |
| switch (BT->getKind()) { |
| default: |
| case BuiltinType::Void: |
| return llvm::DIType(); |
| case BuiltinType::UChar: |
| case BuiltinType::Char_U: Encoding = llvm::dwarf::DW_ATE_unsigned_char; break; |
| case BuiltinType::Char_S: |
| case BuiltinType::SChar: Encoding = llvm::dwarf::DW_ATE_signed_char; break; |
| case BuiltinType::UShort: |
| case BuiltinType::UInt: |
| case BuiltinType::ULong: |
| case BuiltinType::ULongLong: Encoding = llvm::dwarf::DW_ATE_unsigned; break; |
| case BuiltinType::Short: |
| case BuiltinType::Int: |
| case BuiltinType::Long: |
| case BuiltinType::LongLong: Encoding = llvm::dwarf::DW_ATE_signed; break; |
| case BuiltinType::Bool: Encoding = llvm::dwarf::DW_ATE_boolean; break; |
| case BuiltinType::Float: |
| case BuiltinType::Double: Encoding = llvm::dwarf::DW_ATE_float; break; |
| } |
| // Bit size, align and offset of the type. |
| uint64_t Size = M->getContext().getTypeSize(BT); |
| uint64_t Align = M->getContext().getTypeAlign(BT); |
| uint64_t Offset = 0; |
| |
| return DebugFactory.CreateBasicType(Unit, BT->getName(), Unit, 0, Size, Align, |
| Offset, /*flags*/ 0, Encoding); |
| } |
| |
| /// getOrCreateCVRType - Get the CVR qualified type from the cache or create |
| /// a new one if necessary. |
| llvm::DIType CGDebugInfo::CreateCVRType(QualType Ty, llvm::DICompileUnit Unit) { |
| // We will create one Derived type for one qualifier and recurse to handle any |
| // additional ones. |
| llvm::DIType FromTy; |
| unsigned Tag; |
| if (Ty.isConstQualified()) { |
| Tag = llvm::dwarf::DW_TAG_const_type; |
| Ty.removeConst(); |
| FromTy = getOrCreateType(Ty, Unit); |
| } else if (Ty.isVolatileQualified()) { |
| Tag = llvm::dwarf::DW_TAG_volatile_type; |
| Ty.removeVolatile(); |
| FromTy = getOrCreateType(Ty, Unit); |
| } else { |
| assert(Ty.isRestrictQualified() && "Unknown type qualifier for debug info"); |
| Tag = llvm::dwarf::DW_TAG_restrict_type; |
| Ty.removeRestrict(); |
| FromTy = getOrCreateType(Ty, Unit); |
| } |
| |
| // No need to fill in the Name, Line, Size, Alignment, Offset in case of |
| // CVR derived types. |
| return DebugFactory.CreateDerivedType(Tag, Unit, "", llvm::DICompileUnit(), |
| 0, 0, 0, 0, 0, FromTy); |
| } |
| |
| llvm::DIType CGDebugInfo::CreateType(const PointerType *Ty, |
| llvm::DICompileUnit Unit) { |
| llvm::DIType EltTy = getOrCreateType(Ty->getPointeeType(), Unit); |
| |
| // Bit size, align and offset of the type. |
| uint64_t Size = M->getContext().getTypeSize(Ty); |
| uint64_t Align = M->getContext().getTypeAlign(Ty); |
| |
| return DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_pointer_type, Unit, |
| "", llvm::DICompileUnit(), |
| 0, Size, Align, 0, 0, EltTy); |
| } |
| |
| llvm::DIType CGDebugInfo::CreateType(const TypedefType *Ty, |
| llvm::DICompileUnit Unit) { |
| // Typedefs are derived from some other type. If we have a typedef of a |
| // typedef, make sure to emit the whole chain. |
| llvm::DIType Src = getOrCreateType(Ty->getDecl()->getUnderlyingType(), Unit); |
| |
| // We don't set size information, but do specify where the typedef was |
| // declared. |
| std::string TyName = Ty->getDecl()->getNameAsString(); |
| SourceLocation DefLoc = Ty->getDecl()->getLocation(); |
| llvm::DICompileUnit DefUnit = getOrCreateCompileUnit(DefLoc); |
| |
| SourceManager &SM = M->getContext().getSourceManager(); |
| uint64_t Line = SM.getInstantiationLineNumber(DefLoc); |
| |
| return DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_typedef, Unit, |
| TyName, DefUnit, Line, 0, 0, 0, 0, Src); |
| } |
| |
| llvm::DIType CGDebugInfo::CreateType(const FunctionType *Ty, |
| llvm::DICompileUnit Unit) { |
| llvm::SmallVector<llvm::DIDescriptor, 16> EltTys; |
| |
| // Add the result type at least. |
| EltTys.push_back(getOrCreateType(Ty->getResultType(), Unit)); |
| |
| // Set up remainder of arguments if there is a prototype. |
| // FIXME: IF NOT, HOW IS THIS REPRESENTED? llvm-gcc doesn't represent '...'! |
| if (const FunctionTypeProto *FTP = dyn_cast<FunctionTypeProto>(Ty)) { |
| for (unsigned i = 0, e = FTP->getNumArgs(); i != e; ++i) |
| EltTys.push_back(getOrCreateType(FTP->getArgType(i), Unit)); |
| } else { |
| // FIXME: Handle () case in C. llvm-gcc doesn't do it either. |
| } |
| |
| llvm::DIArray EltTypeArray = |
| DebugFactory.GetOrCreateArray(&EltTys[0], EltTys.size()); |
| |
| return DebugFactory.CreateCompositeType(llvm::dwarf::DW_TAG_subroutine_type, |
| Unit, "", llvm::DICompileUnit(), |
| 0, 0, 0, 0, 0, |
| llvm::DIType(), EltTypeArray); |
| } |
| |
| /// getOrCreateRecordType - get structure or union type. |
| llvm::DIType CGDebugInfo::CreateType(const RecordType *Ty, |
| llvm::DICompileUnit Unit) { |
| RecordDecl *Decl = Ty->getDecl(); |
| |
| unsigned Tag; |
| if (Decl->isStruct()) |
| Tag = llvm::dwarf::DW_TAG_structure_type; |
| else if (Decl->isUnion()) |
| Tag = llvm::dwarf::DW_TAG_union_type; |
| else { |
| assert(Decl->isClass() && "Unknown RecordType!"); |
| Tag = llvm::dwarf::DW_TAG_class_type; |
| } |
| |
| SourceManager &SM = M->getContext().getSourceManager(); |
| |
| // Get overall information about the record type for the debug info. |
| std::string Name = Decl->getNameAsString(); |
| |
| llvm::DICompileUnit DefUnit = getOrCreateCompileUnit(Decl->getLocation()); |
| unsigned Line = SM.getInstantiationLineNumber(Decl->getLocation()); |
| |
| |
| // Records and classes and unions can all be recursive. To handle them, we |
| // first generate a debug descriptor for the struct as a forward declaration. |
| // Then (if it is a definition) we go through and get debug info for all of |
| // its members. Finally, we create a descriptor for the complete type (which |
| // may refer to the forward decl if the struct is recursive) and replace all |
| // uses of the forward declaration with the final definition. |
| llvm::DIType FwdDecl = |
| DebugFactory.CreateCompositeType(Tag, Unit, Name, DefUnit, Line, 0, 0, 0, 0, |
| llvm::DIType(), llvm::DIArray()); |
| |
| // If this is just a forward declaration, return it. |
| if (!Decl->getDefinition(M->getContext())) |
| return FwdDecl; |
| |
| // Otherwise, insert it into the TypeCache so that recursive uses will find |
| // it. |
| TypeCache[QualType(Ty, 0).getAsOpaquePtr()] = FwdDecl; |
| |
| // Convert all the elements. |
| llvm::SmallVector<llvm::DIDescriptor, 16> EltTys; |
| |
| const ASTRecordLayout &RL = M->getContext().getASTRecordLayout(Decl); |
| |
| unsigned FieldNo = 0; |
| for (RecordDecl::field_iterator I = Decl->field_begin(), |
| E = Decl->field_end(); |
| I != E; ++I, ++FieldNo) { |
| FieldDecl *Field = *I; |
| llvm::DIType FieldTy = getOrCreateType(Field->getType(), Unit); |
| |
| std::string FieldName = Field->getNameAsString(); |
| |
| // Get the location for the field. |
| SourceLocation FieldDefLoc = Field->getLocation(); |
| llvm::DICompileUnit FieldDefUnit = getOrCreateCompileUnit(FieldDefLoc); |
| unsigned FieldLine = SM.getInstantiationLineNumber(FieldDefLoc); |
| |
| // Bit size, align and offset of the type. |
| uint64_t FieldSize = M->getContext().getTypeSize(Ty); |
| unsigned FieldAlign = M->getContext().getTypeAlign(Ty); |
| uint64_t FieldOffset = RL.getFieldOffset(FieldNo); |
| |
| // Create a DW_TAG_member node to remember the offset of this field in the |
| // struct. FIXME: This is an absolutely insane way to capture this |
| // information. When we gut debug info, this should be fixed. |
| FieldTy = DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_member, Unit, |
| FieldName, FieldDefUnit, |
| FieldLine, FieldSize, FieldAlign, |
| FieldOffset, 0, FieldTy); |
| EltTys.push_back(FieldTy); |
| } |
| |
| llvm::DIArray Elements = |
| DebugFactory.GetOrCreateArray(&EltTys[0], EltTys.size()); |
| |
| // Bit size, align and offset of the type. |
| uint64_t Size = M->getContext().getTypeSize(Ty); |
| uint64_t Align = M->getContext().getTypeAlign(Ty); |
| |
| llvm::DIType RealDecl = |
| DebugFactory.CreateCompositeType(Tag, Unit, Name, DefUnit, Line, Size, |
| Align, 0, 0, llvm::DIType(), Elements); |
| |
| // Now that we have a real decl for the struct, replace anything using the |
| // old decl with the new one. This will recursively update the debug info. |
| FwdDecl.getGV()->replaceAllUsesWith(RealDecl.getGV()); |
| FwdDecl.getGV()->eraseFromParent(); |
| |
| return RealDecl; |
| } |
| |
| llvm::DIType CGDebugInfo::CreateType(const EnumType *Ty, |
| llvm::DICompileUnit Unit) { |
| EnumDecl *Decl = Ty->getDecl(); |
| |
| llvm::SmallVector<llvm::DIDescriptor, 32> Enumerators; |
| |
| // Create DIEnumerator elements for each enumerator. |
| for (EnumDecl::enumerator_iterator Enum = Decl->enumerator_begin(), |
| EnumEnd = Decl->enumerator_end(); |
| Enum != EnumEnd; ++Enum) { |
| Enumerators.push_back(DebugFactory.CreateEnumerator(Enum->getNameAsString(), |
| Enum->getInitVal().getZExtValue())); |
| } |
| |
| // Return a CompositeType for the enum itself. |
| llvm::DIArray EltArray = |
| DebugFactory.GetOrCreateArray(&Enumerators[0], Enumerators.size()); |
| |
| std::string EnumName = Decl->getNameAsString(); |
| SourceLocation DefLoc = Decl->getLocation(); |
| llvm::DICompileUnit DefUnit = getOrCreateCompileUnit(DefLoc); |
| SourceManager &SM = M->getContext().getSourceManager(); |
| unsigned Line = SM.getInstantiationLineNumber(DefLoc); |
| |
| // Size and align of the type. |
| uint64_t Size = M->getContext().getTypeSize(Ty); |
| unsigned Align = M->getContext().getTypeAlign(Ty); |
| |
| return DebugFactory.CreateCompositeType(llvm::dwarf::DW_TAG_enumeration_type, |
| Unit, EnumName, DefUnit, Line, |
| Size, Align, 0, 0, |
| llvm::DIType(), EltArray); |
| } |
| |
| llvm::DIType CGDebugInfo::CreateType(const TagType *Ty, |
| llvm::DICompileUnit Unit) { |
| if (const RecordType *RT = dyn_cast<RecordType>(Ty)) |
| return CreateType(RT, Unit); |
| else if (const EnumType *ET = dyn_cast<EnumType>(Ty)) |
| return CreateType(ET, Unit); |
| |
| return llvm::DIType(); |
| } |
| |
| llvm::DIType CGDebugInfo::CreateType(const ArrayType *Ty, |
| llvm::DICompileUnit Unit) { |
| uint64_t Size; |
| uint64_t Align; |
| |
| |
| if (const VariableArrayType *VAT = dyn_cast<VariableArrayType>(Ty)) { |
| |
| Size = 0; |
| Align = |
| M->getContext().getTypeSize(M->getContext().getBaseElementType(VAT)); |
| } else { |
| // Size and align of the whole array, not the element type. |
| Size = M->getContext().getTypeSize(Ty); |
| Align = M->getContext().getTypeAlign(Ty); |
| } |
| |
| // Add the dimensions of the array. FIXME: This loses CV qualifiers from |
| // interior arrays, do we care? Why aren't nested arrays represented the |
| // obvious/recursive way? |
| llvm::SmallVector<llvm::DIDescriptor, 8> Subscripts; |
| QualType EltTy(Ty, 0); |
| while ((Ty = dyn_cast<ArrayType>(EltTy))) { |
| uint64_t Upper = 0; |
| if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(Ty)) |
| Upper = CAT->getSize().getZExtValue() - 1; |
| // FIXME: Verify this is right for VLAs. |
| Subscripts.push_back(DebugFactory.GetOrCreateSubrange(0, Upper)); |
| EltTy = Ty->getElementType(); |
| } |
| |
| llvm::DIArray SubscriptArray = |
| DebugFactory.GetOrCreateArray(&Subscripts[0], Subscripts.size()); |
| |
| return DebugFactory.CreateCompositeType(llvm::dwarf::DW_TAG_array_type, |
| Unit, "", llvm::DICompileUnit(), |
| 0, Size, Align, 0, 0, |
| getOrCreateType(EltTy, Unit), |
| SubscriptArray); |
| } |
| |
| |
| /// getOrCreateType - Get the type from the cache or create a new |
| /// one if necessary. |
| llvm::DIType CGDebugInfo::getOrCreateType(QualType Ty, |
| llvm::DICompileUnit Unit) { |
| if (Ty.isNull()) |
| return llvm::DIType(); |
| |
| // Check to see if the compile unit already has created this type. |
| llvm::DIType &Slot = TypeCache[Ty.getAsOpaquePtr()]; |
| if (!Slot.isNull()) return Slot; |
| |
| // Handle CVR qualifiers, which recursively handles what they refer to. |
| if (Ty.getCVRQualifiers()) |
| return Slot = CreateCVRType(Ty, Unit); |
| |
| // Work out details of type. |
| switch (Ty->getTypeClass()) { |
| case Type::Complex: |
| case Type::Reference: |
| case Type::Vector: |
| case Type::ExtVector: |
| case Type::ASQual: |
| case Type::ObjCInterface: |
| case Type::ObjCQualifiedInterface: |
| case Type::ObjCQualifiedId: |
| default: |
| return llvm::DIType(); |
| |
| case Type::Builtin: Slot = CreateType(cast<BuiltinType>(Ty), Unit); break; |
| case Type::Pointer: Slot = CreateType(cast<PointerType>(Ty), Unit); break; |
| case Type::TypeName: Slot = CreateType(cast<TypedefType>(Ty), Unit); break; |
| case Type::Tagged: Slot = CreateType(cast<TagType>(Ty), Unit); break; |
| case Type::FunctionProto: |
| case Type::FunctionNoProto: |
| return Slot = CreateType(cast<FunctionType>(Ty), Unit); |
| |
| case Type::ConstantArray: |
| case Type::VariableArray: |
| case Type::IncompleteArray: |
| return Slot = CreateType(cast<ArrayType>(Ty), Unit); |
| case Type::TypeOfExp: |
| return Slot = getOrCreateType(cast<TypeOfExpr>(Ty)->getUnderlyingExpr() |
| ->getType(), Unit); |
| case Type::TypeOfTyp: |
| return Slot = getOrCreateType(cast<TypeOfType>(Ty)->getUnderlyingType(), |
| Unit); |
| } |
| |
| return Slot; |
| } |
| |
| /// EmitFunctionStart - Constructs the debug code for entering a function - |
| /// "llvm.dbg.func.start.". |
| void CGDebugInfo::EmitFunctionStart(const char *Name, QualType ReturnType, |
| llvm::Function *Fn, |
| CGBuilderTy &Builder) { |
| // FIXME: Why is this using CurLoc??? |
| llvm::DICompileUnit Unit = getOrCreateCompileUnit(CurLoc); |
| SourceManager &SM = M->getContext().getSourceManager(); |
| unsigned LineNo = SM.getInstantiationLineNumber(CurLoc); |
| |
| llvm::DISubprogram SP = |
| DebugFactory.CreateSubprogram(Unit, Name, Name, "", Unit, LineNo, |
| getOrCreateType(ReturnType, Unit), |
| Fn->hasInternalLinkage(), true/*definition*/); |
| |
| DebugFactory.InsertSubprogramStart(SP, Builder.GetInsertBlock()); |
| |
| // Push function on region stack. |
| RegionStack.push_back(SP); |
| } |
| |
| |
| void CGDebugInfo::EmitStopPoint(llvm::Function *Fn, CGBuilderTy &Builder) { |
| if (CurLoc.isInvalid() || CurLoc.isMacroID()) return; |
| |
| // Don't bother if things are the same as last time. |
| SourceManager &SM = M->getContext().getSourceManager(); |
| if (CurLoc == PrevLoc |
| || (SM.getLineNumber(CurLoc) == SM.getLineNumber(PrevLoc) |
| && SM.isFromSameFile(CurLoc, PrevLoc))) |
| return; |
| |
| // Update last state. |
| PrevLoc = CurLoc; |
| |
| // Get the appropriate compile unit. |
| llvm::DICompileUnit Unit = getOrCreateCompileUnit(CurLoc); |
| DebugFactory.InsertStopPoint(Unit, SM.getInstantiationLineNumber(CurLoc), |
| SM.getInstantiationColumnNumber(CurLoc), |
| Builder.GetInsertBlock()); |
| } |
| |
| /// EmitRegionStart- Constructs the debug code for entering a declarative |
| /// region - "llvm.dbg.region.start.". |
| void CGDebugInfo::EmitRegionStart(llvm::Function *Fn, CGBuilderTy &Builder) { |
| llvm::DIDescriptor D; |
| if (!RegionStack.empty()) |
| D = RegionStack.back(); |
| D = DebugFactory.CreateBlock(D); |
| RegionStack.push_back(D); |
| DebugFactory.InsertRegionStart(D, Builder.GetInsertBlock()); |
| } |
| |
| /// EmitRegionEnd - Constructs the debug code for exiting a declarative |
| /// region - "llvm.dbg.region.end." |
| void CGDebugInfo::EmitRegionEnd(llvm::Function *Fn, CGBuilderTy &Builder) { |
| assert(!RegionStack.empty() && "Region stack mismatch, stack empty!"); |
| |
| // Provide an region stop point. |
| EmitStopPoint(Fn, Builder); |
| |
| DebugFactory.InsertRegionEnd(RegionStack.back(), Builder.GetInsertBlock()); |
| RegionStack.pop_back(); |
| } |
| |
| /// EmitDeclare - Emit local variable declaration debug info. |
| void CGDebugInfo::EmitDeclare(const VarDecl *Decl, unsigned Tag, |
| llvm::Value *Storage, CGBuilderTy &Builder) { |
| assert(!RegionStack.empty() && "Region stack mismatch, stack empty!"); |
| |
| // Get location information. |
| SourceManager &SM = M->getContext().getSourceManager(); |
| unsigned Line = SM.getInstantiationLineNumber(Decl->getLocation()); |
| llvm::DICompileUnit Unit = getOrCreateCompileUnit(Decl->getLocation()); |
| |
| // Create the descriptor for the variable. |
| llvm::DIVariable D = |
| DebugFactory.CreateVariable(Tag, RegionStack.back(),Decl->getNameAsString(), |
| Unit, Line, |
| getOrCreateType(Decl->getType(), Unit)); |
| // Insert an llvm.dbg.declare into the current block. |
| DebugFactory.InsertDeclare(Storage, D, Builder.GetInsertBlock()); |
| } |
| |
| void CGDebugInfo::EmitDeclareOfAutoVariable(const VarDecl *Decl, |
| llvm::Value *Storage, |
| CGBuilderTy &Builder) { |
| EmitDeclare(Decl, llvm::dwarf::DW_TAG_auto_variable, Storage, Builder); |
| } |
| |
| /// EmitDeclareOfArgVariable - Emit call to llvm.dbg.declare for an argument |
| /// variable declaration. |
| void CGDebugInfo::EmitDeclareOfArgVariable(const VarDecl *Decl, llvm::Value *AI, |
| CGBuilderTy &Builder) { |
| EmitDeclare(Decl, llvm::dwarf::DW_TAG_arg_variable, AI, Builder); |
| } |
| |
| |
| |
| /// EmitGlobalVariable - Emit information about a global variable. |
| void CGDebugInfo::EmitGlobalVariable(llvm::GlobalVariable *Var, |
| const VarDecl *Decl) { |
| // Create global variable debug descriptor. |
| llvm::DICompileUnit Unit = getOrCreateCompileUnit(Decl->getLocation()); |
| SourceManager &SM = M->getContext().getSourceManager(); |
| unsigned LineNo = SM.getInstantiationLineNumber(Decl->getLocation()); |
| |
| std::string Name = Decl->getNameAsString(); |
| |
| QualType T = Decl->getType(); |
| if (T->isIncompleteArrayType()) { |
| |
| // CodeGen turns int[] into int[1] so we'll do the same here. |
| llvm::APSInt ConstVal(32); |
| |
| ConstVal = 1; |
| QualType ET = M->getContext().getAsArrayType(T)->getElementType(); |
| |
| T = M->getContext().getConstantArrayType(ET, ConstVal, |
| ArrayType::Normal, 0); |
| } |
| |
| DebugFactory.CreateGlobalVariable(Unit, Name, Name, "", Unit, LineNo, |
| getOrCreateType(T, Unit), |
| Var->hasInternalLinkage(), |
| true/*definition*/, Var); |
| } |
| |