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255 lines
11 KiB
C++
255 lines
11 KiB
C++
//===--- llvm/Analysis/DIBuilder.h - Debug Information Builder --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines a DIBuilder that is useful for creating debugging
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// information entries in LLVM IR form.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_DIBUILDER_H
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#define LLVM_ANALYSIS_DIBUILDER_H
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#include "llvm/Support/DataTypes.h"
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#include "llvm/ADT/StringRef.h"
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namespace llvm {
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class BasicBlock;
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class Instruction;
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class Function;
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class Module;
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class Value;
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class LLVMContext;
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class MDNode;
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class StringRef;
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class DIDescriptor;
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class DIFile;
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class DIEnumerator;
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class DIType;
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class DIArray;
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class DIGlobalVariable;
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class DINameSpace;
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class DIVariable;
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class DIBuilder {
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private:
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Module &M;
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LLVMContext & VMContext;
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MDNode *TheCU;
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Function *DeclareFn; // llvm.dbg.declare
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Function *ValueFn; // llvm.dbg.value
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DIBuilder(const DIBuilder &); // DO NOT IMPLEMENT
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void operator=(const DIBuilder &); // DO NOT IMPLEMENT
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public:
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explicit DIBuilder(Module &M);
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const MDNode *getCU() { return TheCU; }
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/// CreateCompileUnit - A CompileUnit provides an anchor for all debugging
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/// information generated during this instance of compilation.
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/// @param Lang Source programming language, eg. dwarf::DW_LANG_C99
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/// @param File File name
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/// @param Dir Directory
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/// @param Producer String identify producer of debugging information.
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/// Usuall this is a compiler version string.
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/// @param isOptimized A boolean flag which indicates whether optimization
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/// is ON or not.
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/// @param Flags This string lists command line options. This string is
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/// directly embedded in debug info output which may be used
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/// by a tool analyzing generated debugging information.
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/// @param RV This indicates runtime version for languages like
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/// Objective-C.
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void CreateCompileUnit(unsigned Lang, StringRef File, StringRef Dir,
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StringRef Producer,
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bool isOptimized, StringRef Flags, unsigned RV);
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/// CreateFile - Create a file descriptor to hold debugging information
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/// for a file.
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DIFile CreateFile(StringRef Filename, StringRef Directory);
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/// CreateEnumerator - Create a single enumerator value.
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DIEnumerator CreateEnumerator(StringRef Name, uint64_t Val);
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/// CreateBasicType - Create debugging information entry for a basic
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/// type.
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/// @param Name Type name.
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/// @param SizeInBits Size of the type.
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/// @param AlignInBits Type alignment.
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/// @param Encoding DWARF encoding code, e.g. dwarf::DW_ATE_float.
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DIType CreateBasicType(StringRef Name, uint64_t SizeInBits,
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uint64_t AlignInBits, unsigned Encoding);
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/// CreateQualifiedType - Create debugging information entry for a qualified
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/// type, e.g. 'const int'.
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/// @param Tag Tag identifing type, e.g. dwarf::TAG_volatile_type
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/// @param FromTy Base Type.
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DIType CreateQualifiedType(unsigned Tag, DIType FromTy);
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/// CreatePointerType - Create debugging information entry for a pointer.
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/// @param PointeeTy Type pointed by this pointer.
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/// @param SizeInBits Size.
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/// @param AlignInBits Alignment. (optional)
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/// @param Name Pointer type name. (optional)
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DIType CreatePointerType(DIType PointeeTy, uint64_t SizeInBits,
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uint64_t AlignInBits = 0,
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StringRef Name = StringRef());
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/// CreateReferenceType - Create debugging information entry for a c++
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/// style reference.
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DIType CreateReferenceType(DIType RTy);
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/// CreateTypedef - Create debugging information entry for a typedef.
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/// @param Ty Original type.
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/// @param Name Typedef name.
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/// @param File File where this type is defined.
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/// @param LineNo Line number.
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DIType CreateTypedef(DIType Ty, StringRef Name, DIFile File,
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unsigned LineNo);
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/// CreateFriend - Create debugging information entry for a 'friend'.
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DIType CreateFriend(DIType Ty, DIType FriendTy);
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/// CreateInheritance - Create debugging information entry to establish
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/// inheritance relationship between two types.
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/// @param Ty Original type.
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/// @param BaseTy Base type. Ty is inherits from base.
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/// @param BaseOffset Base offset.
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/// @param Flags Flags to describe inheritance attribute,
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/// e.g. private
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DIType CreateInheritance(DIType Ty, DIType BaseTy, uint64_t BaseOffset,
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unsigned Flags);
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/// CreateMemberType - Create debugging information entry for a member.
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/// @param Name Member name.
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/// @param File File where this member is defined.
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/// @param LineNo Line number.
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/// @param SizeInBits Member size.
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/// @param AlignInBits Member alignment.
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/// @param OffsetInBits Member offset.
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/// @param Flags Flags to encode member attribute, e.g. private
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/// @param Ty Parent type.
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DIType CreateMemberType(StringRef Name, DIFile File,
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unsigned LineNo, uint64_t SizeInBits,
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uint64_t AlignInBits, uint64_t OffsetInBits,
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unsigned Flags, DIType Ty);
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/// CreateStructType - Create debugging information entry for a struct.
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DIType CreateStructType(DIDescriptor Context, StringRef Name, DIFile F,
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unsigned LineNumber, uint64_t SizeInBits,
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uint64_t AlignInBits, unsigned Flags,
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DIArray Elements, unsigned RunTimeLang = 0);
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/// CreateArtificialType - Create a new DIType with "artificial" flag set.
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DIType CreateArtificialType(DIType Ty);
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/// CreateTemporaryType - Create a temporary forward-declared type.
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DIType CreateTemporaryType();
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DIType CreateTemporaryType(DIFile F);
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/// GetOrCreateArray - Get a DIArray, create one if required.
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DIArray GetOrCreateArray(Value *const *Elements, unsigned NumElements);
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/// CreateGlobalVariable - Create a new descriptor for the specified global.
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/// @param Name Name of the variable.
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/// @param LinakgeName Mangled name of the variable.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Variable Type.
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/// @param isLocalToUnit Boolean flag indicate whether this variable is
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/// externally visible or not.
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/// @param Val llvm::Value of the variable.
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DIGlobalVariable
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CreateGlobalVariable(StringRef Name,
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StringRef LinkageName, DIFile File, unsigned LineNo,
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DIType Ty, bool isLocalToUnit, llvm::Value *Val);
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/// CreateStaticVariable - Create a new descriptor for the specified
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/// variable.
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/// @param Conext Variable scope.
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/// @param Name Name of the variable.
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/// @param LinakgeName Mangled name of the variable.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Variable Type.
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/// @param isLocalToUnit Boolean flag indicate whether this variable is
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/// externally visible or not.
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/// @param Val llvm::Value of the variable.
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DIGlobalVariable
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CreateStaticVariable(DIDescriptor Context, StringRef Name,
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StringRef LinkageName, DIFile File, unsigned LineNo,
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DIType Ty, bool isLocalToUnit, llvm::Value *Val);
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/// CreateComplexVariable - Create a new descriptor for the specified
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/// variable which has a complex address expression for its address.
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/// @param Tag Dwarf TAG. Usually DW_TAG_auto_variable or
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/// DW_TAG_arg_variable.
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/// @param Scope Variable scope.
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/// @param Name Variable name.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Variable Type
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/// @param Addr A pointer to a vector of complex address operations.
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/// @param NumAddr Num of address operations in the vector.
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DIVariable CreateComplexVariable(unsigned Tag, DIDescriptor Scope,
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StringRef Name, DIFile F, unsigned LineNo,
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DIType Ty, Value *const *Addr,
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unsigned NumAddr);
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/// CreateNameSpace - This creates new descriptor for a namespace
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/// with the specified parent scope.
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/// @param Scope Namespace scope
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/// @param Name Name of this namespace
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/// @param File Source file
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/// @param LineNo Line number
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DINameSpace CreateNameSpace(DIDescriptor Scope, StringRef Name,
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DIFile File, unsigned LineNo);
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/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
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/// @param Storage llvm::Value of the variable
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertAtEnd Location for the new intrinsic.
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Instruction *InsertDeclare(llvm::Value *Storage, DIVariable VarInfo,
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BasicBlock *InsertAtEnd);
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/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
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/// @param Storage llvm::Value of the variable
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertBefore Location for the new intrinsic.
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Instruction *InsertDeclare(llvm::Value *Storage, DIVariable VarInfo,
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Instruction *InsertBefore);
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/// InsertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
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/// @param Val llvm::Value of the variable
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/// @param Offset Offset
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertAtEnd Location for the new intrinsic.
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Instruction *InsertDbgValueIntrinsic(llvm::Value *Val, uint64_t Offset,
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DIVariable VarInfo,
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BasicBlock *InsertAtEnd);
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/// InsertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
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/// @param Val llvm::Value of the variable
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/// @param Offset Offset
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertBefore Location for the new intrinsic.
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Instruction *InsertDbgValueIntrinsic(llvm::Value *Val, uint64_t Offset,
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DIVariable VarInfo,
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Instruction *InsertBefore);
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};
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} // end namespace llvm
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#endif
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