intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 948 insertions, 0 deletions

diff --git a/contrib/libs/llvm12/include/llvm/IR/DIBuilder.h b/contrib/libs/llvm12/include/llvm/IR/DIBuilder.h
new file mode 100644
index 0000000000..3c925b80f4
--- /dev/null
+++ b/contrib/libs/llvm12/include/llvm/IR/DIBuilder.h
@@ -0,0 +1,948 @@
+#pragma once
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+#endif
+
+//===- DIBuilder.h - Debug Information Builder ------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines a DIBuilder that is useful for creating debugging
+// information entries in LLVM IR form.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_IR_DIBUILDER_H
+#define LLVM_IR_DIBUILDER_H
+
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/MapVector.h"
+#include "llvm/ADT/Optional.h"
+#include "llvm/ADT/SetVector.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/IR/DebugInfo.h"
+#include "llvm/IR/DebugInfoMetadata.h"
+#include "llvm/IR/TrackingMDRef.h"
+#include "llvm/Support/Casting.h"
+#include <algorithm>
+#include <cstdint>
+
+namespace llvm {
+
+  class BasicBlock;
+  class Constant;
+  class Function;
+  class Instruction;
+  class LLVMContext;
+  class Module;
+  class Value;
+
+  class DIBuilder {
+    Module &M;
+    LLVMContext &VMContext;
+
+    DICompileUnit *CUNode;   ///< The one compile unit created by this DIBuiler.
+    Function *DeclareFn;     ///< llvm.dbg.declare
+    Function *ValueFn;       ///< llvm.dbg.value
+    Function *LabelFn;       ///< llvm.dbg.label
+
+    SmallVector<Metadata *, 4> AllEnumTypes;
+    /// Track the RetainTypes, since they can be updated later on.
+    SmallVector<TrackingMDNodeRef, 4> AllRetainTypes;
+    SmallVector<Metadata *, 4> AllSubprograms;
+    SmallVector<Metadata *, 4> AllGVs;
+    SmallVector<TrackingMDNodeRef, 4> AllImportedModules;
+    /// Map Macro parent (which can be DIMacroFile or nullptr) to a list of
+    /// Metadata all of type DIMacroNode.
+    /// DIMacroNode's with nullptr parent are DICompileUnit direct children.
+    MapVector<MDNode *, SetVector<Metadata *>> AllMacrosPerParent;
+
+    /// Track nodes that may be unresolved.
+    SmallVector<TrackingMDNodeRef, 4> UnresolvedNodes;
+    bool AllowUnresolvedNodes;
+
+    /// Each subprogram's preserved local variables.
+    ///
+    /// Do not use a std::vector.  Some versions of libc++ apparently copy
+    /// instead of move on grow operations, and TrackingMDRef is expensive to
+    /// copy.
+    DenseMap<MDNode *, SmallVector<TrackingMDNodeRef, 1>> PreservedVariables;
+
+    /// Each subprogram's preserved labels.
+    DenseMap<MDNode *, SmallVector<TrackingMDNodeRef, 1>> PreservedLabels;
+
+    /// Create a temporary.
+    ///
+    /// Create an \a temporary node and track it in \a UnresolvedNodes.
+    void trackIfUnresolved(MDNode *N);
+
+    /// Internal helper for insertDeclare.
+    Instruction *insertDeclare(llvm::Value *Storage, DILocalVariable *VarInfo,
+                               DIExpression *Expr, const DILocation *DL,
+                               BasicBlock *InsertBB, Instruction *InsertBefore);
+
+    /// Internal helper for insertLabel.
+    Instruction *insertLabel(DILabel *LabelInfo, const DILocation *DL,
+                             BasicBlock *InsertBB, Instruction *InsertBefore);
+
+    /// Internal helper for insertDbgValueIntrinsic.
+    Instruction *
+    insertDbgValueIntrinsic(llvm::Value *Val, DILocalVariable *VarInfo,
+                            DIExpression *Expr, const DILocation *DL,
+                            BasicBlock *InsertBB, Instruction *InsertBefore);
+
+  public:
+    /// Construct a builder for a module.
+    ///
+    /// If \c AllowUnresolved, collect unresolved nodes attached to the module
+    /// in order to resolve cycles during \a finalize().
+    ///
+    /// If \p CU is given a value other than nullptr, then set \p CUNode to CU.
+    explicit DIBuilder(Module &M, bool AllowUnresolved = true,
+                       DICompileUnit *CU = nullptr);
+    DIBuilder(const DIBuilder &) = delete;
+    DIBuilder &operator=(const DIBuilder &) = delete;
+
+    /// Construct any deferred debug info descriptors.
+    void finalize();
+
+    /// Finalize a specific subprogram - no new variables may be added to this
+    /// subprogram afterwards.
+    void finalizeSubprogram(DISubprogram *SP);
+
+    /// 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 info.
+    /// \param Producer      Identify the producer of debugging information
+    ///                      and code.  Usually this is a compiler
+    ///                      version string.
+    /// \param isOptimized   A boolean flag which indicates whether optimization
+    ///                      is enabled 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.
+    /// \param SplitName     The name of the file that we'll split debug info
+    ///                      out into.
+    /// \param Kind          The kind of debug information to generate.
+    /// \param DWOId         The DWOId if this is a split skeleton compile unit.
+    /// \param SplitDebugInlining    Whether to emit inline debug info.
+    /// \param DebugInfoForProfiling Whether to emit extra debug info for
+    ///                              profile collection.
+    /// \param NameTableKind  Whether to emit .debug_gnu_pubnames,
+    ///                      .debug_pubnames, or no pubnames at all.
+    /// \param SysRoot       The clang system root (value of -isysroot).
+    /// \param SDK           The SDK name. On Darwin, this is the last component
+    ///                      of the sysroot.
+    DICompileUnit *
+    createCompileUnit(unsigned Lang, DIFile *File, StringRef Producer,
+                      bool isOptimized, StringRef Flags, unsigned RV,
+                      StringRef SplitName = StringRef(),
+                      DICompileUnit::DebugEmissionKind Kind =
+                          DICompileUnit::DebugEmissionKind::FullDebug,
+                      uint64_t DWOId = 0, bool SplitDebugInlining = true,
+                      bool DebugInfoForProfiling = false,
+                      DICompileUnit::DebugNameTableKind NameTableKind =
+                          DICompileUnit::DebugNameTableKind::Default,
+                      bool RangesBaseAddress = false, StringRef SysRoot = {},
+                      StringRef SDK = {});
+
+    /// Create a file descriptor to hold debugging information for a file.
+    /// \param Filename  File name.
+    /// \param Directory Directory.
+    /// \param Checksum  Optional checksum kind (e.g. CSK_MD5, CSK_SHA1, etc.)
+    ///                  and value.
+    /// \param Source    Optional source text.
+    DIFile *
+    createFile(StringRef Filename, StringRef Directory,
+               Optional<DIFile::ChecksumInfo<StringRef>> Checksum = None,
+               Optional<StringRef> Source = None);
+
+    /// Create debugging information entry for a macro.
+    /// \param Parent     Macro parent (could be nullptr).
+    /// \param Line       Source line number where the macro is defined.
+    /// \param MacroType  DW_MACINFO_define or DW_MACINFO_undef.
+    /// \param Name       Macro name.
+    /// \param Value      Macro value.
+    DIMacro *createMacro(DIMacroFile *Parent, unsigned Line, unsigned MacroType,
+                         StringRef Name, StringRef Value = StringRef());
+
+    /// Create debugging information temporary entry for a macro file.
+    /// List of macro node direct children will be calculated by DIBuilder,
+    /// using the \p Parent relationship.
+    /// \param Parent     Macro file parent (could be nullptr).
+    /// \param Line       Source line number where the macro file is included.
+    /// \param File       File descriptor containing the name of the macro file.
+    DIMacroFile *createTempMacroFile(DIMacroFile *Parent, unsigned Line,
+                                     DIFile *File);
+
+    /// Create a single enumerator value.
+    DIEnumerator *createEnumerator(StringRef Name, int64_t Val, bool IsUnsigned = false);
+
+    /// Create a DWARF unspecified type.
+    DIBasicType *createUnspecifiedType(StringRef Name);
+
+    /// Create C++11 nullptr type.
+    DIBasicType *createNullPtrType();
+
+    /// Create debugging information entry for a basic
+    /// type.
+    /// \param Name        Type name.
+    /// \param SizeInBits  Size of the type.
+    /// \param Encoding    DWARF encoding code, e.g., dwarf::DW_ATE_float.
+    /// \param Flags       Optional DWARF attributes, e.g., DW_AT_endianity.
+    DIBasicType *createBasicType(StringRef Name, uint64_t SizeInBits,
+                                 unsigned Encoding,
+                                 DINode::DIFlags Flags = DINode::FlagZero);
+
+    /// Create debugging information entry for a string
+    /// type.
+    /// \param Name        Type name.
+    /// \param SizeInBits  Size of the type.
+    DIStringType *createStringType(StringRef Name, uint64_t SizeInBits);
+
+    /// 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.
+    DIDerivedType *createQualifiedType(unsigned Tag, DIType *FromTy);
+
+    /// Create debugging information entry for a pointer.
+    /// \param PointeeTy         Type pointed by this pointer.
+    /// \param SizeInBits        Size.
+    /// \param AlignInBits       Alignment. (optional)
+    /// \param DWARFAddressSpace DWARF address space. (optional)
+    /// \param Name              Pointer type name. (optional)
+    DIDerivedType *createPointerType(DIType *PointeeTy, uint64_t SizeInBits,
+                                     uint32_t AlignInBits = 0,
+                                     Optional<unsigned> DWARFAddressSpace =
+                                         None,
+                                     StringRef Name = "");
+
+    /// Create debugging information entry for a pointer to member.
+    /// \param PointeeTy Type pointed to by this pointer.
+    /// \param SizeInBits  Size.
+    /// \param AlignInBits Alignment. (optional)
+    /// \param Class Type for which this pointer points to members of.
+    DIDerivedType *
+    createMemberPointerType(DIType *PointeeTy, DIType *Class,
+                            uint64_t SizeInBits, uint32_t AlignInBits = 0,
+                            DINode::DIFlags Flags = DINode::FlagZero);
+
+    /// Create debugging information entry for a c++
+    /// style reference or rvalue reference type.
+    DIDerivedType *createReferenceType(unsigned Tag, DIType *RTy,
+                                       uint64_t SizeInBits = 0,
+                                       uint32_t AlignInBits = 0,
+                                       Optional<unsigned> DWARFAddressSpace =
+                                           None);
+
+    /// 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.
+    /// \param AlignInBits Alignment. (optional)
+    DIDerivedType *createTypedef(DIType *Ty, StringRef Name, DIFile *File,
+                                 unsigned LineNo, DIScope *Context,
+                                 uint32_t AlignInBits = 0);
+
+    /// Create debugging information entry for a 'friend'.
+    DIDerivedType *createFriend(DIType *Ty, DIType *FriendTy);
+
+    /// 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 VBPtrOffset  Virtual base pointer offset.
+    /// \param Flags        Flags to describe inheritance attribute,
+    ///                     e.g. private
+    DIDerivedType *createInheritance(DIType *Ty, DIType *BaseTy,
+                                     uint64_t BaseOffset, uint32_t VBPtrOffset,
+                                     DINode::DIFlags Flags);
+
+    /// 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.
+    DIDerivedType *createMemberType(DIScope *Scope, StringRef Name,
+                                    DIFile *File, unsigned LineNo,
+                                    uint64_t SizeInBits,
+                                    uint32_t AlignInBits,
+                                    uint64_t OffsetInBits,
+                                    DINode::DIFlags Flags, DIType *Ty);
+
+    /// Create debugging information entry for a variant.  A variant
+    /// normally should be a member of a variant part.
+    /// \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 Discriminant The discriminant for this branch; null for
+    ///                     the default branch
+    /// \param Ty           Parent type.
+    DIDerivedType *createVariantMemberType(DIScope *Scope, StringRef Name,
+					   DIFile *File, unsigned LineNo,
+					   uint64_t SizeInBits,
+					   uint32_t AlignInBits,
+					   uint64_t OffsetInBits,
+					   Constant *Discriminant,
+					   DINode::DIFlags Flags, DIType *Ty);
+
+    /// Create debugging information entry for a bit field 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 OffsetInBits        Member offset.
+    /// \param StorageOffsetInBits Member storage offset.
+    /// \param Flags               Flags to encode member attribute.
+    /// \param Ty                  Parent type.
+    DIDerivedType *createBitFieldMemberType(
+        DIScope *Scope, StringRef Name, DIFile *File, unsigned LineNo,
+        uint64_t SizeInBits, uint64_t OffsetInBits,
+        uint64_t StorageOffsetInBits, DINode::DIFlags Flags, DIType *Ty);
+
+    /// Create debugging information entry for a
+    /// C++ static data member.
+    /// \param Scope      Member scope.
+    /// \param Name       Member name.
+    /// \param File       File where this member is declared.
+    /// \param LineNo     Line number.
+    /// \param Ty         Type of the static member.
+    /// \param Flags      Flags to encode member attribute, e.g. private.
+    /// \param Val        Const initializer of the member.
+    /// \param AlignInBits  Member alignment.
+    DIDerivedType *createStaticMemberType(DIScope *Scope, StringRef Name,
+                                          DIFile *File, unsigned LineNo,
+                                          DIType *Ty, DINode::DIFlags Flags,
+                                          Constant *Val,
+                                          uint32_t AlignInBits = 0);
+
+    /// 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 PropertyNode Property associated with this ivar.
+    DIDerivedType *createObjCIVar(StringRef Name, DIFile *File, unsigned LineNo,
+                                  uint64_t SizeInBits, uint32_t AlignInBits,
+                                  uint64_t OffsetInBits, DINode::DIFlags Flags,
+                                  DIType *Ty, MDNode *PropertyNode);
+
+    /// 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);
+
+    /// 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 LineNumber   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.
+    /// \param UniqueIdentifier A unique identifier for the class.
+    DICompositeType *createClassType(
+        DIScope *Scope, StringRef Name, DIFile *File, unsigned LineNumber,
+        uint64_t SizeInBits, uint32_t AlignInBits, uint64_t OffsetInBits,
+        DINode::DIFlags Flags, DIType *DerivedFrom, DINodeArray Elements,
+        DIType *VTableHolder = nullptr, MDNode *TemplateParms = nullptr,
+        StringRef UniqueIdentifier = "");
+
+    /// 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 LineNumber   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.
+    /// \param UniqueIdentifier A unique identifier for the struct.
+    DICompositeType *createStructType(
+        DIScope *Scope, StringRef Name, DIFile *File, unsigned LineNumber,
+        uint64_t SizeInBits, uint32_t AlignInBits, DINode::DIFlags Flags,
+        DIType *DerivedFrom, DINodeArray Elements, unsigned RunTimeLang = 0,
+        DIType *VTableHolder = nullptr, StringRef UniqueIdentifier = "");
+
+    /// 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 LineNumber   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.
+    /// \param UniqueIdentifier A unique identifier for the union.
+    DICompositeType *createUnionType(DIScope *Scope, StringRef Name,
+                                     DIFile *File, unsigned LineNumber,
+                                     uint64_t SizeInBits, uint32_t AlignInBits,
+                                     DINode::DIFlags Flags,
+                                     DINodeArray Elements,
+                                     unsigned RunTimeLang = 0,
+                                     StringRef UniqueIdentifier = "");
+
+    /// Create debugging information entry for a variant part.  A
+    /// variant part normally has a discriminator (though this is not
+    /// required) and a number of variant children.
+    /// \param Scope        Scope in which this union is defined.
+    /// \param Name         Union name.
+    /// \param File         File where this member is defined.
+    /// \param LineNumber   Line number.
+    /// \param SizeInBits   Member size.
+    /// \param AlignInBits  Member alignment.
+    /// \param Flags        Flags to encode member attribute, e.g. private
+    /// \param Discriminator Discriminant member
+    /// \param Elements     Variant elements.
+    /// \param UniqueIdentifier A unique identifier for the union.
+    DICompositeType *createVariantPart(DIScope *Scope, StringRef Name,
+				       DIFile *File, unsigned LineNumber,
+				       uint64_t SizeInBits, uint32_t AlignInBits,
+				       DINode::DIFlags Flags,
+				       DIDerivedType *Discriminator,
+				       DINodeArray Elements,
+				       StringRef UniqueIdentifier = "");
+
+    /// 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 IsDefault    Parameter is default or not
+    DITemplateTypeParameter *createTemplateTypeParameter(DIScope *Scope,
+                                                         StringRef Name,
+                                                         DIType *Ty,
+                                                         bool IsDefault);
+
+    /// 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 IsDefault    Parameter is default or not
+    /// \param Val          Constant parameter value.
+    DITemplateValueParameter *
+    createTemplateValueParameter(DIScope *Scope, StringRef Name, DIType *Ty,
+                                 bool IsDefault, Constant *Val);
+
+    /// Create debugging information for a template template parameter.
+    /// \param Scope        Scope in which this type is defined.
+    /// \param Name         Value parameter name.
+    /// \param Ty           Parameter type.
+    /// \param Val          The fully qualified name of the template.
+    DITemplateValueParameter *createTemplateTemplateParameter(DIScope *Scope,
+                                                              StringRef Name,
+                                                              DIType *Ty,
+                                                              StringRef Val);
+
+    /// Create debugging information for a template parameter pack.
+    /// \param Scope        Scope in which this type is defined.
+    /// \param Name         Value parameter name.
+    /// \param Ty           Parameter type.
+    /// \param Val          An array of types in the pack.
+    DITemplateValueParameter *createTemplateParameterPack(DIScope *Scope,
+                                                          StringRef Name,
+                                                          DIType *Ty,
+                                                          DINodeArray Val);
+
+    /// Create debugging information entry for an array.
+    /// \param Size         Array size.
+    /// \param AlignInBits  Alignment.
+    /// \param Ty           Element type.
+    /// \param Subscripts   Subscripts.
+    /// \param DataLocation The location of the raw data of a descriptor-based
+    ///                     Fortran array, either a DIExpression* or
+    ///                     a DIVariable*.
+    /// \param Associated   The associated attribute of a descriptor-based
+    ///                     Fortran array, either a DIExpression* or
+    ///                     a DIVariable*.
+    /// \param Allocated    The allocated attribute of a descriptor-based
+    ///                     Fortran array, either a DIExpression* or
+    ///                     a DIVariable*.
+    /// \param Rank         The rank attribute of a descriptor-based
+    ///                     Fortran array, either a DIExpression* or
+    ///                     a DIVariable*.
+    DICompositeType *createArrayType(
+        uint64_t Size, uint32_t AlignInBits, DIType *Ty, DINodeArray Subscripts,
+        PointerUnion<DIExpression *, DIVariable *> DataLocation = nullptr,
+        PointerUnion<DIExpression *, DIVariable *> Associated = nullptr,
+        PointerUnion<DIExpression *, DIVariable *> Allocated = nullptr,
+        PointerUnion<DIExpression *, DIVariable *> Rank = nullptr);
+
+    /// Create debugging information entry for a vector type.
+    /// \param Size         Array size.
+    /// \param AlignInBits  Alignment.
+    /// \param Ty           Element type.
+    /// \param Subscripts   Subscripts.
+    DICompositeType *createVectorType(uint64_t Size, uint32_t AlignInBits,
+                                      DIType *Ty, DINodeArray Subscripts);
+
+    /// 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 LineNumber     Line number.
+    /// \param SizeInBits     Member size.
+    /// \param AlignInBits    Member alignment.
+    /// \param Elements       Enumeration elements.
+    /// \param UnderlyingType Underlying type of a C++11/ObjC fixed enum.
+    /// \param UniqueIdentifier A unique identifier for the enum.
+    /// \param IsScoped Boolean flag indicate if this is C++11/ObjC 'enum class'.
+    DICompositeType *createEnumerationType(
+        DIScope *Scope, StringRef Name, DIFile *File, unsigned LineNumber,
+        uint64_t SizeInBits, uint32_t AlignInBits, DINodeArray Elements,
+        DIType *UnderlyingType, StringRef UniqueIdentifier = "", bool IsScoped = false);
+
+    /// Create subroutine type.
+    /// \param ParameterTypes  An array of subroutine parameter types. This
+    ///                        includes return type at 0th index.
+    /// \param Flags           E.g.: LValueReference.
+    ///                        These flags are used to emit dwarf attributes.
+    /// \param CC              Calling convention, e.g. dwarf::DW_CC_normal
+    DISubroutineType *
+    createSubroutineType(DITypeRefArray ParameterTypes,
+                         DINode::DIFlags Flags = DINode::FlagZero,
+                         unsigned CC = 0);
+
+    /// Create a distinct clone of \p SP with FlagArtificial set.
+    static DISubprogram *createArtificialSubprogram(DISubprogram *SP);
+
+    /// Create a uniqued clone of \p Ty with FlagArtificial set.
+    static DIType *createArtificialType(DIType *Ty);
+
+    /// Create a uniqued clone of \p Ty with FlagObjectPointer and
+    /// FlagArtificial set.
+    static DIType *createObjectPointerType(DIType *Ty);
+
+    /// Create a permanent forward-declared type.
+    DICompositeType *createForwardDecl(unsigned Tag, StringRef Name,
+                                       DIScope *Scope, DIFile *F, unsigned Line,
+                                       unsigned RuntimeLang = 0,
+                                       uint64_t SizeInBits = 0,
+                                       uint32_t AlignInBits = 0,
+                                       StringRef UniqueIdentifier = "");
+
+    /// Create a temporary forward-declared type.
+    DICompositeType *createReplaceableCompositeType(
+        unsigned Tag, StringRef Name, DIScope *Scope, DIFile *F, unsigned Line,
+        unsigned RuntimeLang = 0, uint64_t SizeInBits = 0,
+        uint32_t AlignInBits = 0, DINode::DIFlags Flags = DINode::FlagFwdDecl,
+        StringRef UniqueIdentifier = "");
+
+    /// Retain DIScope* in a module even if it is not referenced
+    /// through debug info anchors.
+    void retainType(DIScope *T);
+
+    /// Create unspecified parameter type
+    /// for a subroutine type.
+    DIBasicType *createUnspecifiedParameter();
+
+    /// Get a DINodeArray, create one if required.
+    DINodeArray getOrCreateArray(ArrayRef<Metadata *> Elements);
+
+    /// Get a DIMacroNodeArray, create one if required.
+    DIMacroNodeArray getOrCreateMacroArray(ArrayRef<Metadata *> Elements);
+
+    /// Get a DITypeRefArray, create one if required.
+    DITypeRefArray getOrCreateTypeArray(ArrayRef<Metadata *> Elements);
+
+    /// Create a descriptor for a value range.  This
+    /// implicitly uniques the values returned.
+    DISubrange *getOrCreateSubrange(int64_t Lo, int64_t Count);
+    DISubrange *getOrCreateSubrange(int64_t Lo, Metadata *CountNode);
+    DISubrange *getOrCreateSubrange(Metadata *Count, Metadata *LowerBound,
+                                    Metadata *UpperBound, Metadata *Stride);
+
+    DIGenericSubrange *
+    getOrCreateGenericSubrange(DIGenericSubrange::BoundType Count,
+                               DIGenericSubrange::BoundType LowerBound,
+                               DIGenericSubrange::BoundType UpperBound,
+                               DIGenericSubrange::BoundType Stride);
+
+    /// Create a new descriptor for the specified variable.
+    /// \param Context     Variable scope.
+    /// \param Name        Name of the variable.
+    /// \param LinkageName 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 Expr        The location of the global relative to the attached
+    ///                    GlobalVariable.
+    /// \param Decl        Reference to the corresponding declaration.
+    /// \param AlignInBits Variable alignment(or 0 if no alignment attr was
+    ///                    specified)
+    DIGlobalVariableExpression *createGlobalVariableExpression(
+        DIScope *Context, StringRef Name, StringRef LinkageName, DIFile *File,
+        unsigned LineNo, DIType *Ty, bool IsLocalToUnit, bool isDefined = true,
+        DIExpression *Expr = nullptr, MDNode *Decl = nullptr,
+        MDTuple *TemplateParams = nullptr, uint32_t AlignInBits = 0);
+
+    /// Identical to createGlobalVariable
+    /// except that the resulting DbgNode is temporary and meant to be RAUWed.
+    DIGlobalVariable *createTempGlobalVariableFwdDecl(
+        DIScope *Context, StringRef Name, StringRef LinkageName, DIFile *File,
+        unsigned LineNo, DIType *Ty, bool IsLocalToUnit, MDNode *Decl = nullptr,
+        MDTuple *TemplateParams= nullptr, uint32_t AlignInBits = 0);
+
+    /// Create a new descriptor for an auto variable.  This is a local variable
+    /// that is not a subprogram parameter.
+    ///
+    /// \c Scope must be a \a DILocalScope, and thus its scope chain eventually
+    /// leads to a \a DISubprogram.
+    ///
+    /// If \c AlwaysPreserve, this variable will be referenced from its
+    /// containing subprogram, and will survive some optimizations.
+    DILocalVariable *
+    createAutoVariable(DIScope *Scope, StringRef Name, DIFile *File,
+                       unsigned LineNo, DIType *Ty, bool AlwaysPreserve = false,
+                       DINode::DIFlags Flags = DINode::FlagZero,
+                       uint32_t AlignInBits = 0);
+
+    /// Create a new descriptor for an label.
+    ///
+    /// \c Scope must be a \a DILocalScope, and thus its scope chain eventually
+    /// leads to a \a DISubprogram.
+    DILabel *
+    createLabel(DIScope *Scope, StringRef Name, DIFile *File, unsigned LineNo,
+                bool AlwaysPreserve = false);
+
+    /// Create a new descriptor for a parameter variable.
+    ///
+    /// \c Scope must be a \a DILocalScope, and thus its scope chain eventually
+    /// leads to a \a DISubprogram.
+    ///
+    /// \c ArgNo is the index (starting from \c 1) of this variable in the
+    /// subprogram parameters.  \c ArgNo should not conflict with other
+    /// parameters of the same subprogram.
+    ///
+    /// If \c AlwaysPreserve, this variable will be referenced from its
+    /// containing subprogram, and will survive some optimizations.
+    DILocalVariable *
+    createParameterVariable(DIScope *Scope, StringRef Name, unsigned ArgNo,
+                            DIFile *File, unsigned LineNo, DIType *Ty,
+                            bool AlwaysPreserve = false,
+                            DINode::DIFlags Flags = DINode::FlagZero);
+
+    /// Create a new descriptor for the specified
+    /// variable which has a complex address expression for its address.
+    /// \param Addr        An array of complex address operations.
+    DIExpression *createExpression(ArrayRef<uint64_t> Addr = None);
+    DIExpression *createExpression(ArrayRef<int64_t> Addr);
+
+    /// Create an expression for a variable that does not have an address, but
+    /// does have a constant value.
+    DIExpression *createConstantValueExpression(uint64_t Val) {
+      return DIExpression::get(
+          VMContext, {dwarf::DW_OP_constu, Val, dwarf::DW_OP_stack_value});
+    }
+
+    /// 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 ScopeLine     Set to the beginning of the scope this starts
+    /// \param Flags         e.g. is this function prototyped or not.
+    ///                      These flags are used to emit dwarf attributes.
+    /// \param SPFlags       Additional flags specific to subprograms.
+    /// \param TParams       Function template parameters.
+    /// \param ThrownTypes   Exception types this function may throw.
+    DISubprogram *
+    createFunction(DIScope *Scope, StringRef Name, StringRef LinkageName,
+                   DIFile *File, unsigned LineNo, DISubroutineType *Ty,
+                   unsigned ScopeLine, DINode::DIFlags Flags = DINode::FlagZero,
+                   DISubprogram::DISPFlags SPFlags = DISubprogram::SPFlagZero,
+                   DITemplateParameterArray TParams = nullptr,
+                   DISubprogram *Decl = nullptr,
+                   DITypeArray ThrownTypes = nullptr);
+
+    /// Identical to createFunction,
+    /// except that the resulting DbgNode is meant to be RAUWed.
+    DISubprogram *createTempFunctionFwdDecl(
+        DIScope *Scope, StringRef Name, StringRef LinkageName, DIFile *File,
+        unsigned LineNo, DISubroutineType *Ty, unsigned ScopeLine,
+        DINode::DIFlags Flags = DINode::FlagZero,
+        DISubprogram::DISPFlags SPFlags = DISubprogram::SPFlagZero,
+        DITemplateParameterArray TParams = nullptr,
+        DISubprogram *Decl = nullptr, DITypeArray ThrownTypes = nullptr);
+
+    /// Create a new descriptor for the specified C++ method.
+    /// See comments in \a 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 VTableIndex   Index no of this method in virtual table, or -1u if
+    ///                      unrepresentable.
+    /// \param ThisAdjustment
+    ///                      MS ABI-specific adjustment of 'this' that occurs
+    ///                      in the prologue.
+    /// \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 SPFlags       Additional flags specific to subprograms.
+    /// \param TParams       Function template parameters.
+    /// \param ThrownTypes   Exception types this function may throw.
+    DISubprogram *
+    createMethod(DIScope *Scope, StringRef Name, StringRef LinkageName,
+                 DIFile *File, unsigned LineNo, DISubroutineType *Ty,
+                 unsigned VTableIndex = 0, int ThisAdjustment = 0,
+                 DIType *VTableHolder = nullptr,
+                 DINode::DIFlags Flags = DINode::FlagZero,
+                 DISubprogram::DISPFlags SPFlags = DISubprogram::SPFlagZero,
+                 DITemplateParameterArray TParams = nullptr,
+                 DITypeArray ThrownTypes = nullptr);
+
+    /// Create common block entry for a Fortran common block.
+    /// \param Scope       Scope of this common block.
+    /// \param decl        Global variable declaration.
+    /// \param Name        The name of this common block.
+    /// \param File        The file this common block is defined.
+    /// \param LineNo      Line number.
+    DICommonBlock *createCommonBlock(DIScope *Scope, DIGlobalVariable *decl,
+                                     StringRef Name, DIFile *File,
+                                     unsigned LineNo);
+
+    /// This creates new descriptor for a namespace with the specified
+    /// parent scope.
+    /// \param Scope       Namespace scope
+    /// \param Name        Name of this namespace
+    /// \param ExportSymbols True for C++ inline namespaces.
+    DINamespace *createNameSpace(DIScope *Scope, StringRef Name,
+                                 bool ExportSymbols);
+
+    /// This creates new descriptor for a module with the specified
+    /// parent scope.
+    /// \param Scope       Parent scope
+    /// \param Name        Name of this module
+    /// \param ConfigurationMacros
+    ///                    A space-separated shell-quoted list of -D macro
+    ///                    definitions as they would appear on a command line.
+    /// \param IncludePath The path to the module map file.
+    /// \param APINotesFile The path to an API notes file for this module.
+    /// \param File        Source file of the module.
+    ///                    Used for Fortran modules.
+    /// \param LineNo      Source line number of the module.
+    ///                    Used for Fortran modules.
+    /// \param IsDecl      This is a module declaration; default to false;
+    ///                    when set to true, only Scope and Name are required
+    ///                    as this entry is just a hint for the debugger to find
+    ///                    the corresponding definition in the global scope.
+    DIModule *createModule(DIScope *Scope, StringRef Name,
+                           StringRef ConfigurationMacros, StringRef IncludePath,
+                           StringRef APINotesFile = {}, DIFile *File = nullptr,
+                           unsigned LineNo = 0, bool IsDecl = false);
+
+    /// 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.
+    /// \param Discriminator DWARF path discriminator value.
+    DILexicalBlockFile *createLexicalBlockFile(DIScope *Scope, DIFile *File,
+                                               unsigned Discriminator = 0);
+
+    /// 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(DIScope *Scope, DIFile *File,
+                                       unsigned Line, unsigned Col);
+
+    /// Create a descriptor for an imported module.
+    /// \param Context The scope this module is imported into
+    /// \param NS      The namespace being imported here.
+    /// \param File    File where the declaration is located.
+    /// \param Line    Line number of the declaration.
+    DIImportedEntity *createImportedModule(DIScope *Context, DINamespace *NS,
+                                           DIFile *File, unsigned Line);
+
+    /// Create a descriptor for an imported module.
+    /// \param Context The scope this module is imported into.
+    /// \param NS      An aliased namespace.
+    /// \param File    File where the declaration is located.
+    /// \param Line    Line number of the declaration.
+    DIImportedEntity *createImportedModule(DIScope *Context,
+                                           DIImportedEntity *NS, DIFile *File,
+                                           unsigned Line);
+
+    /// Create a descriptor for an imported module.
+    /// \param Context The scope this module is imported into.
+    /// \param M       The module being imported here
+    /// \param File    File where the declaration is located.
+    /// \param Line    Line number of the declaration.
+    DIImportedEntity *createImportedModule(DIScope *Context, DIModule *M,
+                                           DIFile *File, unsigned Line);
+
+    /// Create a descriptor for an imported function.
+    /// \param Context The scope this module is imported into.
+    /// \param Decl    The declaration (or definition) of a function, type, or
+    ///                variable.
+    /// \param File    File where the declaration is located.
+    /// \param Line    Line number of the declaration.
+    DIImportedEntity *createImportedDeclaration(DIScope *Context, DINode *Decl,
+                                                DIFile *File, unsigned Line,
+                                                StringRef Name = "");
+
+    /// Insert a new llvm.dbg.declare intrinsic call.
+    /// \param Storage     llvm::Value of the variable
+    /// \param VarInfo     Variable's debug info descriptor.
+    /// \param Expr        A complex location expression.
+    /// \param DL          Debug info location.
+    /// \param InsertAtEnd Location for the new intrinsic.
+    Instruction *insertDeclare(llvm::Value *Storage, DILocalVariable *VarInfo,
+                               DIExpression *Expr, const DILocation *DL,
+                               BasicBlock *InsertAtEnd);
+
+    /// Insert a new llvm.dbg.declare intrinsic call.
+    /// \param Storage      llvm::Value of the variable
+    /// \param VarInfo      Variable's debug info descriptor.
+    /// \param Expr         A complex location expression.
+    /// \param DL           Debug info location.
+    /// \param InsertBefore Location for the new intrinsic.
+    Instruction *insertDeclare(llvm::Value *Storage, DILocalVariable *VarInfo,
+                               DIExpression *Expr, const DILocation *DL,
+                               Instruction *InsertBefore);
+
+    /// Insert a new llvm.dbg.label intrinsic call.
+    /// \param LabelInfo    Label's debug info descriptor.
+    /// \param DL           Debug info location.
+    /// \param InsertBefore Location for the new intrinsic.
+    Instruction *insertLabel(DILabel *LabelInfo, const DILocation *DL,
+                             Instruction *InsertBefore);
+
+    /// Insert a new llvm.dbg.label intrinsic call.
+    /// \param LabelInfo    Label's debug info descriptor.
+    /// \param DL           Debug info location.
+    /// \param InsertAtEnd Location for the new intrinsic.
+    Instruction *insertLabel(DILabel *LabelInfo, const DILocation *DL,
+                             BasicBlock *InsertAtEnd);
+
+    /// Insert a new llvm.dbg.value intrinsic call.
+    /// \param Val          llvm::Value of the variable
+    /// \param VarInfo      Variable's debug info descriptor.
+    /// \param Expr         A complex location expression.
+    /// \param DL           Debug info location.
+    /// \param InsertAtEnd Location for the new intrinsic.
+    Instruction *insertDbgValueIntrinsic(llvm::Value *Val,
+                                         DILocalVariable *VarInfo,
+                                         DIExpression *Expr,
+                                         const DILocation *DL,
+                                         BasicBlock *InsertAtEnd);
+
+    /// Insert a new llvm.dbg.value intrinsic call.
+    /// \param Val          llvm::Value of the variable
+    /// \param VarInfo      Variable's debug info descriptor.
+    /// \param Expr         A complex location expression.
+    /// \param DL           Debug info location.
+    /// \param InsertBefore Location for the new intrinsic.
+    Instruction *insertDbgValueIntrinsic(llvm::Value *Val,
+                                         DILocalVariable *VarInfo,
+                                         DIExpression *Expr,
+                                         const DILocation *DL,
+                                         Instruction *InsertBefore);
+
+    /// Replace the vtable holder in the given type.
+    ///
+    /// If this creates a self reference, it may orphan some unresolved cycles
+    /// in the operands of \c T, so \a DIBuilder needs to track that.
+    void replaceVTableHolder(DICompositeType *&T,
+                             DIType *VTableHolder);
+
+    /// Replace arrays on a composite type.
+    ///
+    /// If \c T is resolved, but the arrays aren't -- which can happen if \c T
+    /// has a self-reference -- \a DIBuilder needs to track the array to
+    /// resolve cycles.
+    void replaceArrays(DICompositeType *&T, DINodeArray Elements,
+                       DINodeArray TParams = DINodeArray());
+
+    /// Replace a temporary node.
+    ///
+    /// Call \a MDNode::replaceAllUsesWith() on \c N, replacing it with \c
+    /// Replacement.
+    ///
+    /// If \c Replacement is the same as \c N.get(), instead call \a
+    /// MDNode::replaceWithUniqued().  In this case, the uniqued node could
+    /// have a different address, so we return the final address.
+    template <class NodeTy>
+    NodeTy *replaceTemporary(TempMDNode &&N, NodeTy *Replacement) {
+      if (N.get() == Replacement)
+        return cast<NodeTy>(MDNode::replaceWithUniqued(std::move(N)));
+
+      N->replaceAllUsesWith(Replacement);
+      return Replacement;
+    }
+  };
+
+  // Create wrappers for C Binding types (see CBindingWrapping.h).
+  DEFINE_ISA_CONVERSION_FUNCTIONS(DIBuilder, LLVMDIBuilderRef)
+
+} // end namespace llvm
+
+#endif // LLVM_IR_DIBUILDER_H
+
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif