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//===--- llvm/Analysis/DIBuilder.h - Debug Information Builder --*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines a DIBuilder that is useful for creating debugging
// information entries in LLVM IR form.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_ANALYSIS_DIBUILDER_H
#define LLVM_ANALYSIS_DIBUILDER_H
#include "llvm/Support/DataTypes.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/StringRef.h"
namespace llvm {
class BasicBlock;
class Instruction;
class Function;
class Module;
class Value;
class LLVMContext;
class MDNode;
class StringRef;
class DIDescriptor;
class DIFile;
class DIEnumerator;
class DIType;
class DIArray;
class DIGlobalVariable;
class DINameSpace;
class DIVariable;
class DISubrange;
class DILexicalBlockFile;
class DILexicalBlock;
class DISubprogram;
class DITemplateTypeParameter;
class DITemplateValueParameter;
class DIObjCProperty;
class DIBuilder {
private:
Module &M;
LLVMContext & VMContext;
MDNode *TheCU;
MDNode *TempEnumTypes;
MDNode *TempRetainTypes;
MDNode *TempSubprograms;
MDNode *TempGVs;
Function *DeclareFn; // llvm.dbg.declare
Function *ValueFn; // llvm.dbg.value
SmallVector<Value *, 4> AllEnumTypes;
SmallVector<Value *, 4> AllRetainTypes;
SmallVector<Value *, 4> AllSubprograms;
SmallVector<Value *, 4> AllGVs;
DIBuilder(const DIBuilder &); // DO NOT IMPLEMENT
void operator=(const DIBuilder &); // DO NOT IMPLEMENT
public:
explicit DIBuilder(Module &M);
const MDNode *getCU() { return TheCU; }
enum ComplexAddrKind { OpPlus=1, OpDeref };
/// finalize - Construct any deferred debug info descriptors.
void finalize();
/// createCompileUnit - A CompileUnit provides an anchor for all debugging
/// information generated during this instance of compilation.
/// @param Lang Source programming language, eg. dwarf::DW_LANG_C99
/// @param File File name
/// @param Dir Directory
/// @param Producer String identify producer of debugging information.
/// Usuall this is a compiler version string.
/// @param isOptimized A boolean flag which indicates whether optimization
/// is ON or not.
/// @param Flags This string lists command line options. This string is
/// directly embedded in debug info output which may be used
/// by a tool analyzing generated debugging information.
/// @param RV This indicates runtime version for languages like
/// Objective-C.
void createCompileUnit(unsigned Lang, StringRef File, StringRef Dir,
StringRef Producer,
bool isOptimized, StringRef Flags, unsigned RV);
/// createFile - Create a file descriptor to hold debugging information
/// for a file.
DIFile createFile(StringRef Filename, StringRef Directory);
/// createEnumerator - Create a single enumerator value.
DIEnumerator createEnumerator(StringRef Name, uint64_t Val);
/// createNullPtrType - Create C++0x nullptr type.
DIType createNullPtrType(StringRef Name);
/// createBasicType - Create debugging information entry for a basic
/// type.
/// @param Name Type name.
/// @param SizeInBits Size of the type.
/// @param AlignInBits Type alignment.
/// @param Encoding DWARF encoding code, e.g. dwarf::DW_ATE_float.
DIType createBasicType(StringRef Name, uint64_t SizeInBits,
uint64_t AlignInBits, unsigned Encoding);
/// createQualifiedType - Create debugging information entry for a qualified
/// type, e.g. 'const int'.
/// @param Tag Tag identifing type, e.g. dwarf::TAG_volatile_type
/// @param FromTy Base Type.
DIType createQualifiedType(unsigned Tag, DIType FromTy);
/// createPointerType - Create debugging information entry for a pointer.
/// @param PointeeTy Type pointed by this pointer.
/// @param SizeInBits Size.
/// @param AlignInBits Alignment. (optional)
/// @param Name Pointer type name. (optional)
DIType createPointerType(DIType PointeeTy, uint64_t SizeInBits,
uint64_t AlignInBits = 0,
StringRef Name = StringRef());
/// createReferenceType - Create debugging information entry for a c++
/// style reference.
DIType createReferenceType(DIType RTy);
/// createTypedef - Create debugging information entry for a typedef.
/// @param Ty Original type.
/// @param Name Typedef name.
/// @param File File where this type is defined.
/// @param LineNo Line number.
/// @param Context The surrounding context for the typedef.
DIType createTypedef(DIType Ty, StringRef Name, DIFile File,
unsigned LineNo, DIDescriptor Context);
/// createFriend - Create debugging information entry for a 'friend'.
DIType createFriend(DIType Ty, DIType FriendTy);
/// createInheritance - Create debugging information entry to establish
/// inheritance relationship between two types.
/// @param Ty Original type.
/// @param BaseTy Base type. Ty is inherits from base.
/// @param BaseOffset Base offset.
/// @param Flags Flags to describe inheritance attribute,
/// e.g. private
DIType createInheritance(DIType Ty, DIType BaseTy, uint64_t BaseOffset,
unsigned Flags);
/// createMemberType - Create debugging information entry for a member.
/// @param Scope Member scope.
/// @param Name Member name.
/// @param File File where this member is defined.
/// @param LineNo Line number.
/// @param SizeInBits Member size.
/// @param AlignInBits Member alignment.
/// @param OffsetInBits Member offset.
/// @param Flags Flags to encode member attribute, e.g. private
/// @param Ty Parent type.
DIType createMemberType(DIDescriptor Scope, StringRef Name, DIFile File,
unsigned LineNo, uint64_t SizeInBits,
uint64_t AlignInBits, uint64_t OffsetInBits,
unsigned Flags, DIType Ty);
/// createObjCIVar - Create debugging information entry for Objective-C
/// instance variable.
/// @param Name Member name.
/// @param File File where this member is defined.
/// @param LineNo Line number.
/// @param SizeInBits Member size.
/// @param AlignInBits Member alignment.
/// @param OffsetInBits Member offset.
/// @param Flags Flags to encode member attribute, e.g. private
/// @param Ty Parent type.
/// @param PropertyName Name of the Objective C property assoicated with
/// this ivar.
/// @param GetterName Name of the Objective C property getter selector.
/// @param SetterName Name of the Objective C property setter selector.
/// @param PropertyAttributes Objective C property attributes.
DIType createObjCIVar(StringRef Name, DIFile File,
unsigned LineNo, uint64_t SizeInBits,
uint64_t AlignInBits, uint64_t OffsetInBits,
unsigned Flags, DIType Ty,
StringRef PropertyName = StringRef(),
StringRef PropertyGetterName = StringRef(),
StringRef PropertySetterName = StringRef(),
unsigned PropertyAttributes = 0);
/// createObjCIVar - Create debugging information entry for Objective-C
/// instance variable.
/// @param Name Member name.
/// @param File File where this member is defined.
/// @param LineNo Line number.
/// @param SizeInBits Member size.
/// @param AlignInBits Member alignment.
/// @param OffsetInBits Member offset.
/// @param Flags Flags to encode member attribute, e.g. private
/// @param Ty Parent type.
/// @param Property Property associated with this ivar.
DIType createObjCIVar(StringRef Name, DIFile File,
unsigned LineNo, uint64_t SizeInBits,
uint64_t AlignInBits, uint64_t OffsetInBits,
unsigned Flags, DIType Ty,
MDNode *PropertyNode);
/// createObjCProperty - Create debugging information entry for Objective-C
/// property.
/// @param Name Property name.
/// @param File File where this property is defined.
/// @param LineNumber Line number.
/// @param GetterName Name of the Objective C property getter selector.
/// @param SetterName Name of the Objective C property setter selector.
/// @param PropertyAttributes Objective C property attributes.
/// @param Ty Type.
DIObjCProperty createObjCProperty(StringRef Name,
DIFile File, unsigned LineNumber,
StringRef GetterName,
StringRef SetterName,
unsigned PropertyAttributes,
DIType Ty);
/// createClassType - Create debugging information entry for a class.
/// @param Scope Scope in which this class is defined.
/// @param Name class name.
/// @param File File where this member is defined.
/// @param LineNo Line number.
/// @param SizeInBits Member size.
/// @param AlignInBits Member alignment.
/// @param OffsetInBits Member offset.
/// @param Flags Flags to encode member attribute, e.g. private
/// @param Elements class members.
/// @param VTableHolder Debug info of the base class that contains vtable
/// for this type. This is used in
/// DW_AT_containing_type. See DWARF documentation
/// for more info.
/// @param TemplateParms Template type parameters.
DIType createClassType(DIDescriptor Scope, StringRef Name, DIFile File,
unsigned LineNumber, uint64_t SizeInBits,
uint64_t AlignInBits, uint64_t OffsetInBits,
unsigned Flags, DIType DerivedFrom,
DIArray Elements, MDNode *VTableHolder = 0,
MDNode *TemplateParms = 0);
/// createStructType - Create debugging information entry for a struct.
/// @param Scope Scope in which this struct is defined.
/// @param Name Struct name.
/// @param File File where this member is defined.
/// @param LineNo Line number.
/// @param SizeInBits Member size.
/// @param AlignInBits Member alignment.
/// @param Flags Flags to encode member attribute, e.g. private
/// @param Elements Struct elements.
/// @param RunTimeLang Optional parameter, Objective-C runtime version.
DIType createStructType(DIDescriptor Scope, StringRef Name, DIFile File,
unsigned LineNumber, uint64_t SizeInBits,
uint64_t AlignInBits, unsigned Flags,
DIArray Elements, unsigned RunTimeLang = 0);
/// createUnionType - Create debugging information entry for an union.
/// @param Scope Scope in which this union is defined.
/// @param Name Union name.
/// @param File File where this member is defined.
/// @param LineNo Line number.
/// @param SizeInBits Member size.
/// @param AlignInBits Member alignment.
/// @param Flags Flags to encode member attribute, e.g. private
/// @param Elements Union elements.
/// @param RunTimeLang Optional parameter, Objective-C runtime version.
DIType createUnionType(DIDescriptor Scope, StringRef Name, DIFile File,
unsigned LineNumber, uint64_t SizeInBits,
uint64_t AlignInBits, unsigned Flags,
DIArray Elements, unsigned RunTimeLang = 0);
/// createTemplateTypeParameter - Create debugging information for template
/// type parameter.
/// @param Scope Scope in which this type is defined.
/// @param Name Type parameter name.
/// @param Ty Parameter type.
/// @param File File where this type parameter is defined.
/// @param LineNo Line number.
/// @param ColumnNo Column Number.
DITemplateTypeParameter
createTemplateTypeParameter(DIDescriptor Scope, StringRef Name, DIType Ty,
MDNode *File = 0, unsigned LineNo = 0,
unsigned ColumnNo = 0);
/// createTemplateValueParameter - Create debugging information for template
/// value parameter.
/// @param Scope Scope in which this type is defined.
/// @param Name Value parameter name.
/// @param Ty Parameter type.
/// @param Value Constant parameter value.
/// @param File File where this type parameter is defined.
/// @param LineNo Line number.
/// @param ColumnNo Column Number.
DITemplateValueParameter
createTemplateValueParameter(DIDescriptor Scope, StringRef Name, DIType Ty,
uint64_t Value,
MDNode *File = 0, unsigned LineNo = 0,
unsigned ColumnNo = 0);
/// createArrayType - Create debugging information entry for an array.
/// @param Size Array size.
/// @param AlignInBits Alignment.
/// @param Ty Element type.
/// @param Subscripts Subscripts.
DIType createArrayType(uint64_t Size, uint64_t AlignInBits,
DIType Ty, DIArray Subscripts);
/// createVectorType - Create debugging information entry for a vector type.
/// @param Size Array size.
/// @param AlignInBits Alignment.
/// @param Ty Element type.
/// @param Subscripts Subscripts.
DIType createVectorType(uint64_t Size, uint64_t AlignInBits,
DIType Ty, DIArray Subscripts);
/// createEnumerationType - Create debugging information entry for an
/// enumeration.
/// @param Scope Scope in which this enumeration is defined.
/// @param Name Union name.
/// @param File File where this member is defined.
/// @param LineNo Line number.
/// @param SizeInBits Member size.
/// @param AlignInBits Member alignment.
/// @param Elements Enumeration elements.
DIType createEnumerationType(DIDescriptor Scope, StringRef Name,
DIFile File, unsigned LineNumber,
uint64_t SizeInBits,
uint64_t AlignInBits, DIArray Elements);
/// createSubroutineType - Create subroutine type.
/// @param File File in which this subroutine is defined.
/// @param ParamterTypes An array of subroutine parameter types. This
/// includes return type at 0th index.
DIType createSubroutineType(DIFile File, DIArray ParameterTypes);
/// createArtificialType - Create a new DIType with "artificial" flag set.
DIType createArtificialType(DIType Ty);
/// createTemporaryType - Create a temporary forward-declared type.
DIType createTemporaryType();
DIType createTemporaryType(DIFile F);
/// createForwardDecl - Create a temporary forward-declared type.
DIType createForwardDecl(unsigned Tag, StringRef Name, DIFile F,
unsigned Line, unsigned RuntimeLang = 0);
/// retainType - Retain DIType in a module even if it is not referenced
/// through debug info anchors.
void retainType(DIType T);
/// createUnspecifiedParameter - Create unspeicified type descriptor
/// for a subroutine type.
DIDescriptor createUnspecifiedParameter();
/// getOrCreateArray - Get a DIArray, create one if required.
DIArray getOrCreateArray(ArrayRef<Value *> Elements);
/// getOrCreateSubrange - Create a descriptor for a value range. This
/// implicitly uniques the values returned.
DISubrange getOrCreateSubrange(int64_t Lo, int64_t Hi);
/// createGlobalVariable - Create a new descriptor for the specified global.
/// @param Name Name of the variable.
/// @param File File where this variable is defined.
/// @param LineNo Line number.
/// @param Ty Variable Type.
/// @param isLocalToUnit Boolean flag indicate whether this variable is
/// externally visible or not.
/// @param Val llvm::Value of the variable.
DIGlobalVariable
createGlobalVariable(StringRef Name, DIFile File, unsigned LineNo,
DIType Ty, bool isLocalToUnit, llvm::Value *Val);
/// createStaticVariable - Create a new descriptor for the specified
/// variable.
/// @param Conext Variable scope.
/// @param Name Name of the variable.
/// @param LinakgeName Mangled name of the variable.
/// @param File File where this variable is defined.
/// @param LineNo Line number.
/// @param Ty Variable Type.
/// @param isLocalToUnit Boolean flag indicate whether this variable is
/// externally visible or not.
/// @param Val llvm::Value of the variable.
DIGlobalVariable
createStaticVariable(DIDescriptor Context, StringRef Name,
StringRef LinkageName, DIFile File, unsigned LineNo,
DIType Ty, bool isLocalToUnit, llvm::Value *Val);
/// createLocalVariable - Create a new descriptor for the specified
/// local variable.
/// @param Tag Dwarf TAG. Usually DW_TAG_auto_variable or
/// DW_TAG_arg_variable.
/// @param Scope Variable scope.
/// @param Name Variable name.
/// @param File File where this variable is defined.
/// @param LineNo Line number.
/// @param Ty Variable Type
/// @param AlwaysPreserve Boolean. Set to true if debug info for this
/// variable should be preserved in optimized build.
/// @param Flags Flags, e.g. artificial variable.
/// @param ArgNo If this variable is an arugment then this argument's
/// number. 1 indicates 1st argument.
DIVariable createLocalVariable(unsigned Tag, DIDescriptor Scope,
StringRef Name,
DIFile File, unsigned LineNo,
DIType Ty, bool AlwaysPreserve = false,
unsigned Flags = 0,
unsigned ArgNo = 0);
/// createComplexVariable - Create a new descriptor for the specified
/// variable which has a complex address expression for its address.
/// @param Tag Dwarf TAG. Usually DW_TAG_auto_variable or
/// DW_TAG_arg_variable.
/// @param Scope Variable scope.
/// @param Name Variable name.
/// @param File File where this variable is defined.
/// @param LineNo Line number.
/// @param Ty Variable Type
/// @param Addr An array of complex address operations.
/// @param ArgNo If this variable is an arugment then this argument's
/// number. 1 indicates 1st argument.
DIVariable createComplexVariable(unsigned Tag, DIDescriptor Scope,
StringRef Name, DIFile F, unsigned LineNo,
DIType Ty, ArrayRef<Value *> Addr,
unsigned ArgNo = 0);
/// createFunction - Create a new descriptor for the specified subprogram.
/// See comments in DISubprogram for descriptions of these fields.
/// @param Scope Function scope.
/// @param Name Function name.
/// @param LinkageName Mangled function name.
/// @param File File where this variable is defined.
/// @param LineNo Line number.
/// @param Ty Function type.
/// @param isLocalToUnit True if this function is not externally visible..
/// @param isDefinition True if this is a function definition.
/// @param ScopeLine Set to the beginning of the scope this starts
/// @param Flags e.g. is this function prototyped or not.
/// This flags are used to emit dwarf attributes.
/// @param isOptimized True if optimization is ON.
/// @param Fn llvm::Function pointer.
/// @param TParam Function template parameters.
DISubprogram createFunction(DIDescriptor Scope, StringRef Name,
StringRef LinkageName,
DIFile File, unsigned LineNo,
DIType Ty, bool isLocalToUnit,
bool isDefinition,
unsigned ScopeLine,
unsigned Flags = 0,
bool isOptimized = false,
Function *Fn = 0,
MDNode *TParam = 0,
MDNode *Decl = 0);
/// createMethod - Create a new descriptor for the specified C++ method.
/// See comments in DISubprogram for descriptions of these fields.
/// @param Scope Function scope.
/// @param Name Function name.
/// @param LinkageName Mangled function name.
/// @param File File where this variable is defined.
/// @param LineNo Line number.
/// @param Ty Function type.
/// @param isLocalToUnit True if this function is not externally visible..
/// @param isDefinition True if this is a function definition.
/// @param Virtuality Attributes describing virtualness. e.g. pure
/// virtual function.
/// @param VTableIndex Index no of this method in virtual table.
/// @param VTableHolder Type that holds vtable.
/// @param Flags e.g. is this function prototyped or not.
/// This flags are used to emit dwarf attributes.
/// @param isOptimized True if optimization is ON.
/// @param Fn llvm::Function pointer.
/// @param TParam Function template parameters.
DISubprogram createMethod(DIDescriptor Scope, StringRef Name,
StringRef LinkageName,
DIFile File, unsigned LineNo,
DIType Ty, bool isLocalToUnit,
bool isDefinition,
unsigned Virtuality = 0, unsigned VTableIndex = 0,
MDNode *VTableHolder = 0,
unsigned Flags = 0,
bool isOptimized = false,
Function *Fn = 0,
MDNode *TParam = 0);
/// createNameSpace - This creates new descriptor for a namespace
/// with the specified parent scope.
/// @param Scope Namespace scope
/// @param Name Name of this namespace
/// @param File Source file
/// @param LineNo Line number
DINameSpace createNameSpace(DIDescriptor Scope, StringRef Name,
DIFile File, unsigned LineNo);
/// createLexicalBlockFile - This creates a descriptor for a lexical
/// block with a new file attached. This merely extends the existing
/// lexical block as it crosses a file.
/// @param Scope Lexical block.
/// @param File Source file.
DILexicalBlockFile createLexicalBlockFile(DIDescriptor Scope,
DIFile File);
/// createLexicalBlock - This creates a descriptor for a lexical block
/// with the specified parent context.
/// @param Scope Parent lexical scope.
/// @param File Source file
/// @param Line Line number
/// @param Col Column number
DILexicalBlock createLexicalBlock(DIDescriptor Scope, DIFile File,
unsigned Line, unsigned Col);
/// insertDeclare - Insert a new llvm.dbg.declare intrinsic call.
/// @param Storage llvm::Value of the variable
/// @param VarInfo Variable's debug info descriptor.
/// @param InsertAtEnd Location for the new intrinsic.
Instruction *insertDeclare(llvm::Value *Storage, DIVariable VarInfo,
BasicBlock *InsertAtEnd);
/// insertDeclare - Insert a new llvm.dbg.declare intrinsic call.
/// @param Storage llvm::Value of the variable
/// @param VarInfo Variable's debug info descriptor.
/// @param InsertBefore Location for the new intrinsic.
Instruction *insertDeclare(llvm::Value *Storage, DIVariable VarInfo,
Instruction *InsertBefore);
/// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
/// @param Val llvm::Value of the variable
/// @param Offset Offset
/// @param VarInfo Variable's debug info descriptor.
/// @param InsertAtEnd Location for the new intrinsic.
Instruction *insertDbgValueIntrinsic(llvm::Value *Val, uint64_t Offset,
DIVariable VarInfo,
BasicBlock *InsertAtEnd);
/// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
/// @param Val llvm::Value of the variable
/// @param Offset Offset
/// @param VarInfo Variable's debug info descriptor.
/// @param InsertBefore Location for the new intrinsic.
Instruction *insertDbgValueIntrinsic(llvm::Value *Val, uint64_t Offset,
DIVariable VarInfo,
Instruction *InsertBefore);
};
} // end namespace llvm
#endif