/*========================== begin_copyright_notice ============================

Copyright (C) 2017-2021 Intel Corporation

SPDX-License-Identifier: MIT

============================= end_copyright_notice ===========================*/

#pragma once

#include "MetaDataApiUtils.h"

namespace IGC {
    namespace SPIRMD
    {
        //typedefs and forward declarations
        class VectorTypeHintMetaData;
        typedef MetaObjectHandle<VectorTypeHintMetaData> VectorTypeHintMetaDataHandle;

        class VersionMetaData;
        typedef MetaObjectHandle<VersionMetaData> VersionMetaDataHandle;

        class WorkGroupDimensionsMetaData;
        typedef MetaObjectHandle<WorkGroupDimensionsMetaData> WorkGroupDimensionsMetaDataHandle;

        class SubGroupDimensionsMetaData;
        typedef MetaObjectHandle<SubGroupDimensionsMetaData> SubGroupDimensionsMetaDataHandle;

        class WorkgroupWalkOrderMetaData;
        typedef MetaObjectHandle<WorkgroupWalkOrderMetaData> WorkgroupWalkOrderMetaDataHandle;

        class KernelMetaData;
        typedef MetaObjectHandle<KernelMetaData> KernelMetaDataHandle;

        typedef MetaDataList<VersionMetaDataHandle> OpenCLVersionsMetaDataList;
        typedef MetaObjectHandle<OpenCLVersionsMetaDataList> OpenCLVersionsMetaDataListHandle;

        typedef MetaDataList<VersionMetaDataHandle> SpirVersionsMetaDataList;
        typedef MetaObjectHandle<SpirVersionsMetaDataList> SpirVersionsMetaDataListHandle;

        typedef MetaDataList<std::string> InnerUsedKhrExtensionsMetaDataList;
        typedef MetaObjectHandle<InnerUsedKhrExtensionsMetaDataList> InnerUsedKhrExtensionsMetaDataListHandle;

        typedef MetaDataList<InnerUsedKhrExtensionsMetaDataListHandle> UsedKhrExtensionsMetaDataList;
        typedef MetaObjectHandle<UsedKhrExtensionsMetaDataList> UsedKhrExtensionsMetaDataListHandle;

        typedef MetaDataList<std::string> InnerUsedOptionalCoreFeaturesMetaDataList;
        typedef MetaObjectHandle<InnerUsedOptionalCoreFeaturesMetaDataList> InnerUsedOptionalCoreFeaturesMetaDataListHandle;

        typedef MetaDataList<InnerUsedOptionalCoreFeaturesMetaDataListHandle> UsedOptionalCoreFeaturesMetaDataList;
        typedef MetaObjectHandle<UsedOptionalCoreFeaturesMetaDataList> UsedOptionalCoreFeaturesMetaDataListHandle;

        typedef MetaDataList<int32_t> FloatingPointContractionsMetaDataList;
        typedef MetaObjectHandle<FloatingPointContractionsMetaDataList> FloatingPointContractionsMetaDataListHandle;

        typedef MetaDataList<KernelMetaDataHandle> KernelsMetaDataList;
        typedef MetaObjectHandle<KernelsMetaDataList> KernelsMetaDataListHandle;

        typedef MetaDataList<std::string> InnerCompilerOptionsMetaDataList;
        typedef MetaObjectHandle<InnerCompilerOptionsMetaDataList> InnerCompilerOptionsMetaDataListHandle;

        typedef MetaDataList<InnerCompilerOptionsMetaDataListHandle> CompilerOptionsMetaDataList;
        typedef MetaObjectHandle<CompilerOptionsMetaDataList> CompilerOptionsMetaDataListHandle;

        typedef MetaDataList<std::string> InnerCompilerExternalOptionsMetaDataList;
        typedef MetaObjectHandle<InnerCompilerExternalOptionsMetaDataList> InnerCompilerExternalOptionsMetaDataListHandle;

        typedef MetaDataList<InnerCompilerExternalOptionsMetaDataListHandle> CompilerExternalOptionsMetaDataList;
        typedef MetaObjectHandle<CompilerExternalOptionsMetaDataList> CompilerExternalOptionsMetaDataListHandle;

        typedef MetaDataList<int32_t> ArgAddressSpacesMetaDataList;
        typedef MetaObjectHandle<ArgAddressSpacesMetaDataList> ArgAddressSpacesMetaDataListHandle;

        typedef MetaDataList<std::string> ArgAccessQualifiersMetaDataList;
        typedef MetaObjectHandle<ArgAccessQualifiersMetaDataList> ArgAccessQualifiersMetaDataListHandle;

        typedef MetaDataList<std::string> ArgTypesMetaDataList;
        typedef MetaObjectHandle<ArgTypesMetaDataList> ArgTypesMetaDataListHandle;

        typedef MetaDataList<std::string> ArgBaseTypesMetaDataList;
        typedef MetaObjectHandle<ArgBaseTypesMetaDataList> ArgBaseTypesMetaDataListHandle;

        typedef MetaDataList<std::string> ArgTypeQualifiersMetaDataList;
        typedef MetaObjectHandle<ArgTypeQualifiersMetaDataList> ArgTypeQualifiersMetaDataListHandle;

        typedef MetaDataList<std::string> ArgNamesMetaDataList;
        typedef MetaObjectHandle<ArgNamesMetaDataList> ArgNamesMetaDataListHandle;

        ///
        // Read/Write the VectorTypeHint structure from/to LLVM metadata
        //
        class VectorTypeHintMetaData :public IMetaDataObject
        {
        public:
            typedef VectorTypeHintMetaData _Myt;
            typedef IMetaDataObject _Mybase;
            // typedefs for data member types
            typedef MetaDataValue<llvm::UndefValue>::value_type VecTypeType;
            typedef MetaDataValue<bool>::value_type SignType;

        public:
            ///
            // Factory method - creates the VectorTypeHintMetaData from the given metadata node
            //
            static _Myt* get(const llvm::MDNode* pNode, bool hasId = false)
            {
                return new _Myt(pNode, hasId);
            }

            ///
            // Factory method - create the default empty VectorTypeHintMetaData object
            static _Myt* get()
            {
                return new _Myt();
            }

            ///
            // Factory method - create the default empty named VectorTypeHintMetaData object
            static _Myt* get(const char* name)
            {
                return new _Myt(name);
            }

            ///
            // Ctor - loads the VectorTypeHintMetaData from the given metadata node
            //
            VectorTypeHintMetaData(const llvm::MDNode* pNode, bool hasId);

            ///
            // Default Ctor - creates the empty, not named VectorTypeHintMetaData object
            //
            VectorTypeHintMetaData();

            ///
            // Ctor - creates the empty, named VectorTypeHintMetaData object
            //
            VectorTypeHintMetaData(const char* name);

            /// VecType related methods
            VecTypeType getVecType() const
            {
                return m_VecType.get();
            }

            bool isVecTypeHasValue() const
            {
                return m_VecType.hasValue();
            }


            /// Sign related methods
            SignType getSign() const
            {
                return m_Sign.get();
            }

            bool isSignHasValue() const
            {
                return m_Sign.hasValue();
            }

            ///
            // Returns true if any of the VectorTypeHintMetaData`s members has changed
            bool dirty() const;

            ///
            // Returns true if the structure was loaded from the metadata or was changed
            bool hasValue() const;

            ///
            // Discards the changes done to the VectorTypeHintMetaData instance
            void discardChanges();

            ///
            // Generates the new MDNode hierarchy for the given structure
            llvm::Metadata* generateNode(llvm::LLVMContext& context) const;

            ///
            // Saves the structure changes to the given MDNode
            void save(llvm::LLVMContext& context, llvm::MDNode* pNode) const;

        private:
            ///
            // Returns true if the given MDNode could be saved to without replacement
            bool compatibleWith(const llvm::MDNode* pNode) const
            {
                return false;
            }

        private:
            typedef MetaDataIterator<llvm::MDNode> NodeIterator;

            llvm::Metadata* getVecTypeNode(const llvm::MDNode* pParentNode) const;
            llvm::Metadata* getSignNode(const llvm::MDNode* pParentNode) const;

        private:
            // data members
            MetaDataValue<llvm::UndefValue> m_VecType;
            MetaDataValue<bool> m_Sign;
            // parent node
            const llvm::MDNode* m_pNode;
        };

        ///
        // Read/Write the Version structure from/to LLVM metadata
        //
        class VersionMetaData :public IMetaDataObject
        {
        public:
            typedef VersionMetaData _Myt;
            typedef IMetaDataObject _Mybase;
            // typedefs for data member types
            typedef MetaDataValue<int32_t>::value_type MajorType;
            typedef MetaDataValue<int32_t>::value_type MinorType;

        public:
            ///
            // Factory method - creates the VersionMetaData from the given metadata node
            //
            static _Myt* get(const llvm::MDNode* pNode, bool hasId = false)
            {
                return new _Myt(pNode, hasId);
            }

            ///
            // Factory method - create the default empty VersionMetaData object
            static _Myt* get()
            {
                return new _Myt();
            }

            ///
            // Factory method - create the default empty named VersionMetaData object
            static _Myt* get(const char* name)
            {
                return new _Myt(name);
            }

            ///
            // Ctor - loads the VersionMetaData from the given metadata node
            //
            VersionMetaData(const llvm::MDNode* pNode, bool hasId);

            ///
            // Default Ctor - creates the empty, not named VersionMetaData object
            //
            VersionMetaData();

            ///
            // Ctor - creates the empty, named VersionMetaData object
            //
            VersionMetaData(const char* name);

            /// Major related methods
            MajorType getMajor() const
            {
                return m_Major.get();
            }

            bool isMajorHasValue() const
            {
                return m_Major.hasValue();
            }


            /// Minor related methods
            MinorType getMinor() const
            {
                return m_Minor.get();
            }

            bool isMinorHasValue() const
            {
                return m_Minor.hasValue();
            }

            ///
            // Returns true if any of the VersionMetaData`s members has changed
            bool dirty() const;

            ///
            // Returns true if the structure was loaded from the metadata or was changed
            bool hasValue() const;

            ///
            // Discards the changes done to the VersionMetaData instance
            void discardChanges();

            ///
            // Generates the new MDNode hierarchy for the given structure
            llvm::Metadata* generateNode(llvm::LLVMContext& context) const;

            ///
            // Saves the structure changes to the given MDNode
            void save(llvm::LLVMContext& context, llvm::MDNode* pNode) const;

        private:
            ///
            // Returns true if the given MDNode could be saved to without replacement
            bool compatibleWith(const llvm::MDNode* pNode) const
            {
                return false;
            }

        private:
            typedef MetaDataIterator<llvm::MDNode> NodeIterator;

            llvm::Metadata* getMajorNode(const llvm::MDNode* pParentNode) const;
            llvm::Metadata* getMinorNode(const llvm::MDNode* pParentNode) const;

        private:
            // data members
            MetaDataValue<int32_t> m_Major;
            MetaDataValue<int32_t> m_Minor;
            // parent node
            const llvm::MDNode* m_pNode;
        };

        ///
        // Read/Write the WorkGroupDimensions structure from/to LLVM metadata
        //
        class WorkGroupDimensionsMetaData :public IMetaDataObject
        {
        public:
            typedef WorkGroupDimensionsMetaData _Myt;
            typedef IMetaDataObject _Mybase;
            // typedefs for data member types
            typedef MetaDataValue<int32_t>::value_type XDimType;
            typedef MetaDataValue<int32_t>::value_type YDimType;
            typedef MetaDataValue<int32_t>::value_type ZDimType;

        public:
            ///
            // Factory method - creates the WorkGroupDimensionsMetaData from the given metadata node
            //
            static _Myt* get(const llvm::MDNode* pNode, bool hasId = false)
            {
                return new _Myt(pNode, hasId);
            }

            ///
            // Factory method - create the default empty WorkGroupDimensionsMetaData object
            static _Myt* get()
            {
                return new _Myt();
            }

            ///
            // Factory method - create the default empty named WorkGroupDimensionsMetaData object
            static _Myt* get(const char* name)
            {
                return new _Myt(name);
            }

            ///
            // Ctor - loads the WorkGroupDimensionsMetaData from the given metadata node
            //
            WorkGroupDimensionsMetaData(const llvm::MDNode* pNode, bool hasId);

            ///
            // Default Ctor - creates the empty, not named WorkGroupDimensionsMetaData object
            //
            WorkGroupDimensionsMetaData();

            ///
            // Ctor - creates the empty, named WorkGroupDimensionsMetaData object
            //
            WorkGroupDimensionsMetaData(const char* name);

            /// XDim related methods
            XDimType getXDim() const
            {
                return m_XDim.get();
            }

            bool isXDimHasValue() const
            {
                return m_XDim.hasValue();
            }


            /// YDim related methods
            YDimType getYDim() const
            {
                return m_YDim.get();
            }

            bool isYDimHasValue() const
            {
                return m_YDim.hasValue();
            }


            /// ZDim related methods
            ZDimType getZDim() const
            {
                return m_ZDim.get();
            }

            bool isZDimHasValue() const
            {
                return m_ZDim.hasValue();
            }

            ///
            // Returns true if any of the WorkGroupDimensionsMetaData`s members has changed
            bool dirty() const;

            ///
            // Returns true if the structure was loaded from the metadata or was changed
            bool hasValue() const;

            ///
            // Discards the changes done to the WorkGroupDimensionsMetaData instance
            void discardChanges();

            ///
            // Generates the new MDNode hierarchy for the given structure
            llvm::Metadata* generateNode(llvm::LLVMContext& context) const;

            ///
            // Saves the structure changes to the given MDNode
            void save(llvm::LLVMContext& context, llvm::MDNode* pNode) const;

        private:
            ///
            // Returns true if the given MDNode could be saved to without replacement
            bool compatibleWith(const llvm::MDNode* pNode) const
            {
                return false;
            }

        private:
            typedef MetaDataIterator<llvm::MDNode> NodeIterator;

            llvm::Metadata* getXDimNode(const llvm::MDNode* pParentNode) const;
            llvm::Metadata* getYDimNode(const llvm::MDNode* pParentNode) const;
            llvm::Metadata* getZDimNode(const llvm::MDNode* pParentNode) const;

        private:
            // data members
            MetaDataValue<int32_t> m_XDim;
            MetaDataValue<int32_t> m_YDim;
            MetaDataValue<int32_t> m_ZDim;
            // parent node
            const llvm::MDNode* m_pNode;
        };

        ///
        // Read/Write the SubGroupDimensions structure from/to LLVM metadata
        //
        class SubGroupDimensionsMetaData :public IMetaDataObject
        {
        public:
            typedef SubGroupDimensionsMetaData _Myt;
            typedef IMetaDataObject _Mybase;
            // typedefs for data member types
            typedef MetaDataValue<int32_t>::value_type SIMD_SizeType;

        public:
            ///
            // Factory method - creates the SubGroupDimensionsMetaData from the given metadata node
            //
            static _Myt* get(const llvm::MDNode* pNode, bool hasId = false)
            {
                return new _Myt(pNode, hasId);
            }

            ///
            // Factory method - create the default empty SubGroupDimensionsMetaData object
            static _Myt* get()
            {
                return new _Myt();
            }

            ///
            // Factory method - create the default empty named SubGroupDimensionsMetaData object
            static _Myt* get(const char* name)
            {
                return new _Myt(name);
            }

            ///
            // Ctor - loads the SubGroupDimensionsMetaData from the given metadata node
            //
            SubGroupDimensionsMetaData(const llvm::MDNode* pNode, bool hasId);

            ///
            // Default Ctor - creates the empty, not named SubGroupDimensionsMetaData object
            //
            SubGroupDimensionsMetaData();

            ///
            // Ctor - creates the empty, named SubGroupDimensionsMetaData object
            //
            SubGroupDimensionsMetaData(const char* name);

            /// SIMD_Size related methods
            SIMD_SizeType getSIMD_Size() const
            {
                return m_SIMD_Size.get();
            }

            bool isSIMD_SizeHasValue() const
            {
                return m_SIMD_Size.hasValue();
            }

            ///
            // Returns true if any of the SubGroupDimensionsMetaData`s members has changed
            bool dirty() const;

            ///
            // Returns true if the structure was loaded from the metadata or was changed
            bool hasValue() const;

            ///
            // Discards the changes done to the SubGroupDimensionsMetaData instance
            void discardChanges();

            ///
            // Generates the new MDNode hierarchy for the given structure
            llvm::Metadata* generateNode(llvm::LLVMContext& context) const;

            ///
            // Saves the structure changes to the given MDNode
            void save(llvm::LLVMContext& context, llvm::MDNode* pNode) const;

        private:
            ///
            // Returns true if the given MDNode could be saved to without replacement
            bool compatibleWith(const llvm::MDNode* pNode) const
            {
                return false;
            }

        private:
            typedef MetaDataIterator<llvm::MDNode> NodeIterator;

            llvm::Metadata* getSIMD_SizeNode(const llvm::MDNode* pParentNode) const;

        private:
            // data members
            MetaDataValue<int32_t> m_SIMD_Size;
            // parent node
            const llvm::MDNode* m_pNode;
        };

        ///
        // Read/Write the WorkgroupWalkOrder structure from/to LLVM metadata
        //
        class WorkgroupWalkOrderMetaData :public IMetaDataObject
        {
        public:
            typedef WorkgroupWalkOrderMetaData _Myt;
            typedef IMetaDataObject _Mybase;
            // typedefs for data member types
            typedef MetaDataValue<int32_t>::value_type WalkOrderDimType;

        public:
            ///
            // Factory method - creates the SubGroupSizeMetaData from the given metadata node
            //
            static _Myt* get(const llvm::MDNode* pNode, bool hasId = false)
            {
                return new _Myt(pNode, hasId);
            }

            ///
            // Factory method - create the default empty SubGroupSizeMetaData object
            static _Myt* get()
            {
                return new _Myt();
            }

            ///
            // Factory method - create the default empty named SubGroupSizeMetaData object
            static _Myt* get(const char* name)
            {
                return new _Myt(name);
            }

            ///
            // Ctor - loads the SubGroupSizeMetaData from the given metadata node
            //
            WorkgroupWalkOrderMetaData(const llvm::MDNode* pNode, bool hasId);

            ///
            // Default Ctor - creates the empty, not named SubGroupSizeMetaData object
            //
            WorkgroupWalkOrderMetaData();

            ///
            // Ctor - creates the empty, named SubGroupSizeMetaData object
            //
            WorkgroupWalkOrderMetaData(const char* name);

            /// workgroup walk order related methods
            WalkOrderDimType getDim0() const
            {
                return m_Dim0.get();
            }
            WalkOrderDimType getDim1() const
            {
                return m_Dim1.get();
            }
            WalkOrderDimType getDim2() const
            {
                return m_Dim2.get();
            }

            ///
            // Returns true if any of the SubGroupSizeMetaData`s members has changed
            bool dirty() const;

            ///
            // Returns true if the structure was loaded from the metadata or was changed
            bool hasValue() const;

            ///
            // Discards the changes done to the SubGroupSizeMetaData instance
            void discardChanges();

            ///
            // Generates the new MDNode hierarchy for the given structure
            llvm::Metadata* generateNode(llvm::LLVMContext& context) const;

            ///
            // Saves the structure changes to the given MDNode
            void save(llvm::LLVMContext& context, llvm::MDNode* pNode) const;

        private:
            ///
            // Returns true if the given MDNode could be saved to without replacement
            bool compatibleWith(const llvm::MDNode* pNode) const
            {
                return false;
            }

        private:
            typedef MetaDataIterator<llvm::MDNode> NodeIterator;

            llvm::Metadata* getDim0Node(const llvm::MDNode* pParentNode) const;
            llvm::Metadata* getDim1Node(const llvm::MDNode* pParentNode) const;
            llvm::Metadata* getDim2Node(const llvm::MDNode* pParentNode) const;

        private:
            // data members
            MetaDataValue<int32_t> m_Dim0;
            MetaDataValue<int32_t> m_Dim1;
            MetaDataValue<int32_t> m_Dim2;
            // parent node
            const llvm::MDNode* m_pNode;
        };

        ///
        // Read/Write the Kernel structure from/to LLVM metadata
        //
        class KernelMetaData :public IMetaDataObject
        {
        public:
            typedef KernelMetaData _Myt;
            typedef IMetaDataObject _Mybase;
            // typedefs for data member types
            typedef MetaDataValue<llvm::Function>::value_type FunctionType;




            typedef MetaDataList<int32_t> ArgAddressSpacesList;
            typedef MetaDataList<std::string> ArgAccessQualifiersList;
            typedef MetaDataList<std::string> ArgTypesList;
            typedef MetaDataList<std::string> ArgBaseTypesList;
            typedef MetaDataList<std::string> ArgTypeQualifiersList;
            typedef MetaDataList<std::string> ArgNamesList;

        public:
            ///
            // Factory method - creates the KernelMetaData from the given metadata node
            //
            static _Myt* get(const llvm::MDNode* pNode, bool hasId = false)
            {
                return new _Myt(pNode, hasId);
            }

            ///
            // Factory method - create the default empty KernelMetaData object
            static _Myt* get()
            {
                return new _Myt();
            }

            ///
            // Factory method - create the default empty named KernelMetaData object
            static _Myt* get(const char* name)
            {
                return new _Myt(name);
            }

            ///
            // Ctor - loads the KernelMetaData from the given metadata node
            //
            KernelMetaData(const llvm::MDNode* pNode, bool hasId);

            ///
            // Default Ctor - creates the empty, not named KernelMetaData object
            //
            KernelMetaData();

            ///
            // Ctor - creates the empty, named KernelMetaData object
            //
            KernelMetaData(const char* name);

            /// Function related methods
            FunctionType getFunction() const
            {
                return m_Function.get();
            }

            bool isFunctionHasValue() const
            {
                return m_Function.hasValue();
            }


            /// WorkGroupSizeHint related methods

            const WorkGroupDimensionsMetaDataHandle getWorkGroupSizeHint()
            {
                return m_WorkGroupSizeHint;
            }


            /// RequiredWorkGroupSize related methods

            const WorkGroupDimensionsMetaDataHandle getRequiredWorkGroupSize()
            {
                return m_RequiredWorkGroupSize;
            }


            /// RequiredSubGroupSize related methods

            const SubGroupDimensionsMetaDataHandle getRequiredSubGroupSize()
            {
                return m_RequiredSubGroupSize;
            }

            /// WorkgroupWalkOrder related methods

            const WorkgroupWalkOrderMetaDataHandle getWorkgroupWalkOrder()
            {
                return m_WorkgroupWalkOrder;
            }


            /// VectorTypeHint related methods

            const VectorTypeHintMetaDataHandle getVectorTypeHint()
            {
                return m_VectorTypeHint;
            }


            /// ArgAddressSpaces related methods

            ArgAddressSpacesList::const_iterator begin_ArgAddressSpaces() const
            {
                return m_ArgAddressSpaces.begin();
            }

            ArgAddressSpacesList::const_iterator end_ArgAddressSpaces() const
            {
                return m_ArgAddressSpaces.end();
            }

            size_t size_ArgAddressSpaces()  const
            {
                return m_ArgAddressSpaces.size();
            }

            bool empty_ArgAddressSpaces()  const
            {
                return m_ArgAddressSpaces.empty();
            }

            bool isArgAddressSpacesHasValue() const
            {
                return m_ArgAddressSpaces.hasValue();
            }

            const ArgAddressSpacesList::item_type getArgAddressSpacesItem(size_t index) const
            {
                return m_ArgAddressSpaces.getItem(index);
            }



            /// ArgAccessQualifiers related methods

            ArgAccessQualifiersList::const_iterator begin_ArgAccessQualifiers() const
            {
                return m_ArgAccessQualifiers.begin();
            }

            ArgAccessQualifiersList::const_iterator end_ArgAccessQualifiers() const
            {
                return m_ArgAccessQualifiers.end();
            }

            size_t size_ArgAccessQualifiers()  const
            {
                return m_ArgAccessQualifiers.size();
            }

            bool empty_ArgAccessQualifiers()  const
            {
                return m_ArgAccessQualifiers.empty();
            }

            bool isArgAccessQualifiersHasValue() const
            {
                return m_ArgAccessQualifiers.hasValue();
            }

            const ArgAccessQualifiersList::item_type getArgAccessQualifiersItem(size_t index) const
            {
                return m_ArgAccessQualifiers.getItem(index);
            }



            /// ArgTypes related methods

            ArgTypesList::const_iterator begin_ArgTypes() const
            {
                return m_ArgTypes.begin();
            }

            ArgTypesList::const_iterator end_ArgTypes() const
            {
                return m_ArgTypes.end();
            }

            size_t size_ArgTypes()  const
            {
                return m_ArgTypes.size();
            }

            bool empty_ArgTypes()  const
            {
                return m_ArgTypes.empty();
            }

            bool isArgTypesHasValue() const
            {
                return m_ArgTypes.hasValue();
            }

            const ArgTypesList::item_type getArgTypesItem(size_t index) const
            {
                return m_ArgTypes.getItem(index);
            }



            /// ArgBaseTypes related methods

            ArgBaseTypesList::const_iterator begin_ArgBaseTypes() const
            {
                return m_ArgBaseTypes.begin();
            }

            ArgBaseTypesList::const_iterator end_ArgBaseTypes() const
            {
                return m_ArgBaseTypes.end();
            }

            size_t size_ArgBaseTypes()  const
            {
                return m_ArgBaseTypes.size();
            }

            bool empty_ArgBaseTypes()  const
            {
                return m_ArgBaseTypes.empty();
            }

            bool isArgBaseTypesHasValue() const
            {
                return m_ArgBaseTypes.hasValue();
            }

            const ArgBaseTypesList::item_type getArgBaseTypesItem(size_t index) const
            {
                return m_ArgBaseTypes.getItem(index);
            }



            /// ArgTypeQualifiers related methods

            ArgTypeQualifiersList::const_iterator begin_ArgTypeQualifiers() const
            {
                return m_ArgTypeQualifiers.begin();
            }

            ArgTypeQualifiersList::const_iterator end_ArgTypeQualifiers() const
            {
                return m_ArgTypeQualifiers.end();
            }

            size_t size_ArgTypeQualifiers()  const
            {
                return m_ArgTypeQualifiers.size();
            }

            bool empty_ArgTypeQualifiers()  const
            {
                return m_ArgTypeQualifiers.empty();
            }

            bool isArgTypeQualifiersHasValue() const
            {
                return m_ArgTypeQualifiers.hasValue();
            }

            const ArgTypeQualifiersList::item_type getArgTypeQualifiersItem(size_t index) const
            {
                return m_ArgTypeQualifiers.getItem(index);
            }



            /// ArgNames related methods

            ArgNamesList::const_iterator begin_ArgNames() const
            {
                return m_ArgNames.begin();
            }

            ArgNamesList::const_iterator end_ArgNames() const
            {
                return m_ArgNames.end();
            }

            size_t size_ArgNames()  const
            {
                return m_ArgNames.size();
            }

            bool empty_ArgNames()  const
            {
                return m_ArgNames.empty();
            }

            bool isArgNamesHasValue() const
            {
                return m_ArgNames.hasValue();
            }

            const ArgNamesList::item_type getArgNamesItem(size_t index) const
            {
                return m_ArgNames.getItem(index);
            }

            ///
            // Returns true if any of the KernelMetaData`s members has changed
            bool dirty() const;

            ///
            // Returns true if the structure was loaded from the metadata or was changed
            bool hasValue() const;

            ///
            // Discards the changes done to the KernelMetaData instance
            void discardChanges();

            ///
            // Generates the new MDNode hierarchy for the given structure
            llvm::Metadata* generateNode(llvm::LLVMContext& context) const;

            ///
            // Saves the structure changes to the given MDNode
            void save(llvm::LLVMContext& context, llvm::MDNode* pNode) const;

        private:
            ///
            // Returns true if the given MDNode could be saved to without replacement
            bool compatibleWith(const llvm::MDNode* pNode) const
            {
                return false;
            }

        private:
            typedef MetaDataIterator<llvm::MDNode> NodeIterator;

            llvm::Metadata* getFunctionNode(const llvm::MDNode* pParentNode) const;
            llvm::MDNode* getWorkGroupSizeHintNode(const llvm::MDNode* pParentNode) const;
            llvm::MDNode* getRequiredWorkGroupSizeNode(const llvm::MDNode* pParentNode) const;
            llvm::MDNode* getRequiredSubGroupSizeNode(const llvm::MDNode* pParentNode) const;
            llvm::MDNode* getWorkgroupWalkOrderNode(const llvm::MDNode* pParentNode) const;
            llvm::MDNode* getVectorTypeHintNode(const llvm::MDNode* pParentNode) const;
            llvm::MDNode* getArgAddressSpacesNode(const llvm::MDNode* pParentNode) const;
            llvm::MDNode* getArgAccessQualifiersNode(const llvm::MDNode* pParentNode) const;
            llvm::MDNode* getArgTypesNode(const llvm::MDNode* pParentNode) const;
            llvm::MDNode* getArgBaseTypesNode(const llvm::MDNode* pParentNode) const;
            llvm::MDNode* getArgTypeQualifiersNode(const llvm::MDNode* pParentNode) const;
            llvm::MDNode* getArgNamesNode(const llvm::MDNode* pParentNode) const;

        private:
            // data members
            MetaDataValue<llvm::Function> m_Function;
            WorkGroupDimensionsMetaDataHandle m_WorkGroupSizeHint;
            WorkGroupDimensionsMetaDataHandle m_RequiredWorkGroupSize;
            SubGroupDimensionsMetaDataHandle m_RequiredSubGroupSize;
            WorkgroupWalkOrderMetaDataHandle m_WorkgroupWalkOrder;
            VectorTypeHintMetaDataHandle m_VectorTypeHint;
            MetaDataList<int32_t> m_ArgAddressSpaces;
            MetaDataList<std::string> m_ArgAccessQualifiers;
            MetaDataList<std::string> m_ArgTypes;
            MetaDataList<std::string> m_ArgBaseTypes;
            MetaDataList<std::string> m_ArgTypeQualifiers;
            MetaDataList<std::string> m_ArgNames;
            // parent node
            const llvm::MDNode* m_pNode;
        };


        class SpirMetaDataUtils
        {
        public:
            // typedefs for the data members types
            typedef NamedMDNodeList<KernelMetaDataHandle> KernelsList;
            typedef NamedMDNodeList<InnerCompilerOptionsMetaDataListHandle> CompilerOptionsList;
            typedef NamedMDNodeList<InnerCompilerExternalOptionsMetaDataListHandle> CompilerExternalOptionsList;
            typedef NamedMDNodeList<int32_t> FloatingPointContractionsList;
            typedef NamedMDNodeList<InnerUsedOptionalCoreFeaturesMetaDataListHandle> UsedOptionalCoreFeaturesList;
            typedef NamedMDNodeList<InnerUsedKhrExtensionsMetaDataListHandle> UsedKhrExtensionsList;
            typedef NamedMDNodeList<VersionMetaDataHandle> SpirVersionsList;
            typedef NamedMDNodeList<VersionMetaDataHandle> OpenCLVersionsList;

        public:
            // If using this constructor, setting the llvm module by the setModule
            // function is needed for correct operation.
            SpirMetaDataUtils() {}



            SpirMetaDataUtils(llvm::Module* pModule) :
                m_Kernels(pModule->getNamedMetadata("opencl.kernels")),
                m_CompilerOptions(pModule->getNamedMetadata("opencl.compiler.options")),
                m_CompilerExternalOptions(pModule->getNamedMetadata("opencl.compiler.ext.options")),
                m_FloatingPointContractions(pModule->getNamedMetadata("opencl.enable.FP_CONTRACT")),
                m_UsedOptionalCoreFeatures(pModule->getNamedMetadata("opencl.used.optional.core.features")),
                m_UsedKhrExtensions(pModule->getNamedMetadata("opencl.used.extensions")),
                m_SpirVersions(pModule->getNamedMetadata("opencl.spir.version")),
                m_OpenCLVersions(pModule->getNamedMetadata("opencl.ocl.version")),
                m_pModule(pModule)
            {
            }

            void setModule(llvm::Module* pModule) {
                m_Kernels = pModule->getNamedMetadata("opencl.kernels");
                m_CompilerOptions = pModule->getNamedMetadata("opencl.compiler.options");
                m_CompilerExternalOptions = pModule->getNamedMetadata("opencl.compiler.ext.options");
                m_FloatingPointContractions = pModule->getNamedMetadata("opencl.enable.FP_CONTRACT");
                m_UsedOptionalCoreFeatures = pModule->getNamedMetadata("opencl.used.optional.core.features");
                m_UsedKhrExtensions = pModule->getNamedMetadata("opencl.used.extensions");
                m_SpirVersions = pModule->getNamedMetadata("opencl.spir.version");
                m_OpenCLVersions = pModule->getNamedMetadata("opencl.ocl.version");
                m_pModule = pModule;
            }

            ~SpirMetaDataUtils() {}

            /// Kernels related methods


            KernelsList::const_iterator begin_Kernels() const
            {
                return m_Kernels.begin();
            }

            KernelsList::const_iterator end_Kernels() const
            {
                return m_Kernels.end();
            }

            size_t size_Kernels()  const
            {
                return m_Kernels.size();
            }

            bool empty_Kernels()  const
            {
                return m_Kernels.empty();
            }

            bool isKernelsHasValue() const
            {
                return m_Kernels.hasValue();
            }

            const KernelsList::item_type getKernelsItem(size_t index) const
            {
                return m_Kernels.getItem(index);
            }



            /// CompilerOptions related methods


            CompilerOptionsList::const_iterator begin_CompilerOptions() const
            {
                return m_CompilerOptions.begin();
            }

            CompilerOptionsList::const_iterator end_CompilerOptions() const
            {
                return m_CompilerOptions.end();
            }

            size_t size_CompilerOptions()  const
            {
                return m_CompilerOptions.size();
            }

            bool empty_CompilerOptions()  const
            {
                return m_CompilerOptions.empty();
            }

            bool isCompilerOptionsHasValue() const
            {
                return m_CompilerOptions.hasValue();
            }

            const CompilerOptionsList::item_type getCompilerOptionsItem(size_t index) const
            {
                return m_CompilerOptions.getItem(index);
            }



            /// CompilerExternalOptions related methods


            CompilerExternalOptionsList::const_iterator begin_CompilerExternalOptions() const
            {
                return m_CompilerExternalOptions.begin();
            }

            CompilerExternalOptionsList::const_iterator end_CompilerExternalOptions() const
            {
                return m_CompilerExternalOptions.end();
            }

            size_t size_CompilerExternalOptions()  const
            {
                return m_CompilerExternalOptions.size();
            }

            bool empty_CompilerExternalOptions()  const
            {
                return m_CompilerExternalOptions.empty();
            }

            bool isCompilerExternalOptionsHasValue() const
            {
                return m_CompilerExternalOptions.hasValue();
            }

            const CompilerExternalOptionsList::item_type getCompilerExternalOptionsItem(size_t index) const
            {
                return m_CompilerExternalOptions.getItem(index);
            }



            /// FloatingPointContractions related methods


            FloatingPointContractionsList::const_iterator begin_FloatingPointContractions() const
            {
                return m_FloatingPointContractions.begin();
            }

            FloatingPointContractionsList::const_iterator end_FloatingPointContractions() const
            {
                return m_FloatingPointContractions.end();
            }

            size_t size_FloatingPointContractions()  const
            {
                return m_FloatingPointContractions.size();
            }

            bool empty_FloatingPointContractions()  const
            {
                return m_FloatingPointContractions.empty();
            }

            bool isFloatingPointContractionsHasValue() const
            {
                return m_FloatingPointContractions.hasValue();
            }

            const FloatingPointContractionsList::item_type getFloatingPointContractionsItem(size_t index) const
            {
                return m_FloatingPointContractions.getItem(index);
            }



            /// UsedOptionalCoreFeatures related methods


            UsedOptionalCoreFeaturesList::const_iterator begin_UsedOptionalCoreFeatures() const
            {
                return m_UsedOptionalCoreFeatures.begin();
            }

            UsedOptionalCoreFeaturesList::const_iterator end_UsedOptionalCoreFeatures() const
            {
                return m_UsedOptionalCoreFeatures.end();
            }

            size_t size_UsedOptionalCoreFeatures()  const
            {
                return m_UsedOptionalCoreFeatures.size();
            }

            bool empty_UsedOptionalCoreFeatures()  const
            {
                return m_UsedOptionalCoreFeatures.empty();
            }

            bool isUsedOptionalCoreFeaturesHasValue() const
            {
                return m_UsedOptionalCoreFeatures.hasValue();
            }

            const UsedOptionalCoreFeaturesList::item_type getUsedOptionalCoreFeaturesItem(size_t index) const
            {
                return m_UsedOptionalCoreFeatures.getItem(index);
            }



            /// UsedKhrExtensions related methods


            UsedKhrExtensionsList::const_iterator begin_UsedKhrExtensions() const
            {
                return m_UsedKhrExtensions.begin();
            }

            UsedKhrExtensionsList::const_iterator end_UsedKhrExtensions() const
            {
                return m_UsedKhrExtensions.end();
            }

            size_t size_UsedKhrExtensions()  const
            {
                return m_UsedKhrExtensions.size();
            }

            bool empty_UsedKhrExtensions()  const
            {
                return m_UsedKhrExtensions.empty();
            }

            bool isUsedKhrExtensionsHasValue() const
            {
                return m_UsedKhrExtensions.hasValue();
            }

            const UsedKhrExtensionsList::item_type getUsedKhrExtensionsItem(size_t index) const
            {
                return m_UsedKhrExtensions.getItem(index);
            }



            /// SpirVersions related methods


            SpirVersionsList::const_iterator begin_SpirVersions() const
            {
                return m_SpirVersions.begin();
            }

            SpirVersionsList::const_iterator end_SpirVersions() const
            {
                return m_SpirVersions.end();
            }

            size_t size_SpirVersions()  const
            {
                return m_SpirVersions.size();
            }

            bool empty_SpirVersions()  const
            {
                return m_SpirVersions.empty();
            }

            bool isSpirVersionsHasValue() const
            {
                return m_SpirVersions.hasValue();
            }

            const SpirVersionsList::item_type getSpirVersionsItem(size_t index) const
            {
                return m_SpirVersions.getItem(index);
            }



            /// OpenCLVersions related methods


            OpenCLVersionsList::const_iterator begin_OpenCLVersions() const
            {
                return m_OpenCLVersions.begin();
            }

            OpenCLVersionsList::const_iterator end_OpenCLVersions() const
            {
                return m_OpenCLVersions.end();
            }

            size_t size_OpenCLVersions()  const
            {
                return m_OpenCLVersions.size();
            }

            bool empty_OpenCLVersions()  const
            {
                return m_OpenCLVersions.empty();
            }

            bool isOpenCLVersionsHasValue() const
            {
                return m_OpenCLVersions.hasValue();
            }

            const OpenCLVersionsList::item_type getOpenCLVersionsItem(size_t index) const
            {
                return m_OpenCLVersions.getItem(index);
            }



            void deleteMetadata()
            {
                llvm::NamedMDNode* KernelsNode = m_pModule->getNamedMetadata("opencl.kernels");
                if (KernelsNode)
                {
                    m_pModule->eraseNamedMetadata(KernelsNode);
                }

                llvm::NamedMDNode* CompilerOptionsNode = m_pModule->getNamedMetadata("opencl.compiler.options");
                if (CompilerOptionsNode)
                {
                    m_pModule->eraseNamedMetadata(CompilerOptionsNode);
                }

                llvm::NamedMDNode* CompilerExternalOptionsNode = m_pModule->getNamedMetadata("opencl.compiler.ext.options");
                if (CompilerExternalOptionsNode)
                {
                    m_pModule->eraseNamedMetadata(CompilerExternalOptionsNode);
                }

                llvm::NamedMDNode* FloatingPointContractionsNode = m_pModule->getNamedMetadata("opencl.enable.FP_CONTRACT");
                if (FloatingPointContractionsNode)
                {
                    m_pModule->eraseNamedMetadata(FloatingPointContractionsNode);
                }

                llvm::NamedMDNode* UsedOptionalCoreFeaturesNode = m_pModule->getNamedMetadata("opencl.used.optional.core.features");
                if (UsedOptionalCoreFeaturesNode)
                {
                    m_pModule->eraseNamedMetadata(UsedOptionalCoreFeaturesNode);
                }

                llvm::NamedMDNode* UsedKhrExtensionsNode = m_pModule->getNamedMetadata("opencl.used.extensions");
                if (UsedKhrExtensionsNode)
                {
                    m_pModule->eraseNamedMetadata(UsedKhrExtensionsNode);
                }

                llvm::NamedMDNode* SpirVersionsNode = m_pModule->getNamedMetadata("opencl.spir.version");
                if (SpirVersionsNode)
                {
                    m_pModule->eraseNamedMetadata(SpirVersionsNode);
                }

                llvm::NamedMDNode* OpenCLVersionsNode = m_pModule->getNamedMetadata("opencl.ocl.version");
                if (OpenCLVersionsNode)
                {
                    m_pModule->eraseNamedMetadata(OpenCLVersionsNode);
                }
            }

        private:
            // data members
            NamedMDNodeList<KernelMetaDataHandle> m_Kernels;
            NamedMDNodeList<InnerCompilerOptionsMetaDataListHandle> m_CompilerOptions;
            NamedMDNodeList<InnerCompilerExternalOptionsMetaDataListHandle> m_CompilerExternalOptions;
            NamedMDNodeList<int32_t> m_FloatingPointContractions;
            NamedMDNodeList<InnerUsedOptionalCoreFeaturesMetaDataListHandle> m_UsedOptionalCoreFeatures;
            NamedMDNodeList<InnerUsedKhrExtensionsMetaDataListHandle> m_UsedKhrExtensions;
            NamedMDNodeList<VersionMetaDataHandle> m_SpirVersions;
            NamedMDNodeList<VersionMetaDataHandle> m_OpenCLVersions;
            llvm::Module* m_pModule;
        };


    }
} //namespace