/home/arjun/llvm-project/mlir/include/mlir/Support/TypeID.h

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//===- TypeID.h - TypeID RTTI class -----------------------------*- 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 contains a definition of the TypeID class. This provides a non
// RTTI mechanism for producing unique type IDs in LLVM.
//
//===----------------------------------------------------------------------===//

#ifndef MLIR_SUPPORT_TYPEID_H
#define MLIR_SUPPORT_TYPEID_H

#include "mlir/Support/LLVM.h"
#include "llvm/ADT/DenseMapInfo.h"
#include "llvm/Support/PointerLikeTypeTraits.h"

namespace mlir {

/// This class provides an efficient unique identifier for a specific C++ type.
/// This allows for a C++ type to be compared, hashed, and stored in an opaque
/// context. This class is similar in some ways to std::type_index, but can be
/// used for any type. For example, this class could be used to implement LLVM
/// style isa/dyn_cast functionality for a type hierarchy:
///
///  struct Base {
///    Base(TypeID typeID) : typeID(typeID) {}
///    TypeID typeID;
///  };
///
///  struct DerivedA : public Base {
///    DerivedA() : Base(TypeID::get<DerivedA>()) {}
///
///    static bool classof(const Base *base) {
///      return base->typeID == TypeID::get<DerivedA>();
///    }
///  };
///
///  void foo(Base *base) {
///    if (DerivedA *a = llvm::dyn_cast<DerivedA>(base))
///       ...
///  }
///
class TypeID {
  /// This class represents the storage of a type info object.
  /// Note: We specify an explicit alignment here to allow use with
  /// PointerIntPair and other utilities/data structures that require a known
  /// pointer alignment.
  struct alignas(8) Storage {};

public:
  TypeID() : TypeID(get<void>()) {}
  TypeID(const TypeID &) = default;

  /// Comparison operations.
  bool operator==(const TypeID &other) const {
    return storage == other.storage;
  }
  bool operator!=(const TypeID &other) const { return !(*this == other); }

  /// Construct a type info object for the given type T.
  /// TODO: This currently won't work when using DLLs as it requires properly
  /// attaching dllimport and dllexport. Fix this when that information is
  /// available within LLVM.
  template <typename T>
  LLVM_EXTERNAL_VISIBILITY static TypeID get() {
    static Storage instance;
    return TypeID(&instance);
  }
  template <template <typename> class Trait>
  LLVM_EXTERNAL_VISIBILITY static TypeID get() {
    static Storage instance;
    return TypeID(&instance);
  }

  /// Methods for supporting PointerLikeTypeTraits.
  const void *getAsOpaquePointer() const {
    return static_cast<const void *>(storage);
  }
  static TypeID getFromOpaquePointer(const void *pointer) {
    return TypeID(reinterpret_cast<const Storage *>(pointer));
  }

  /// Enable hashing TypeID.
  friend ::llvm::hash_code hash_value(TypeID id);

private:
  TypeID(const Storage *storage) : storage(storage) {}

  /// The storage of this type info object.
  const Storage *storage;
};

/// Enable hashing TypeID.
inline ::llvm::hash_code hash_value(TypeID id) {
  return llvm::hash_value(id.storage);
}

} // end namespace mlir

namespace llvm {
template <> struct DenseMapInfo<mlir::TypeID> {
  static mlir::TypeID getEmptyKey() {
    void *pointer = llvm::DenseMapInfo<void *>::getEmptyKey();
    return mlir::TypeID::getFromOpaquePointer(pointer);
  }
  static mlir::TypeID getTombstoneKey() {
    void *pointer = llvm::DenseMapInfo<void *>::getTombstoneKey();
    return mlir::TypeID::getFromOpaquePointer(pointer);
  }
  static unsigned getHashValue(mlir::TypeID val) {
    return mlir::hash_value(val);
  }
  static bool isEqual(mlir::TypeID lhs, mlir::TypeID rhs) { return lhs == rhs; }
};

/// We align TypeID::Storage by 8, so allow LLVM to steal the low bits.
template <> struct PointerLikeTypeTraits<mlir::TypeID> {
  static inline void *getAsVoidPointer(mlir::TypeID info) {
    return const_cast<void *>(info.getAsOpaquePointer());
  }
  static inline mlir::TypeID getFromVoidPointer(void *ptr) {
    return mlir::TypeID::getFromOpaquePointer(ptr);
  }
  static constexpr int NumLowBitsAvailable = 3;
};

} // end namespace llvm

#endif // MLIR_SUPPORT_TYPEID_H

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1		//===- TypeID.h - TypeID RTTI class ------------------------------ C++ --===//
2		//
3		// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4		// See https://llvm.org/LICENSE.txt for license information.
5		// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6		//
7		//===----------------------------------------------------------------------===//
8		//
9		// This file contains a definition of the TypeID class. This provides a non
10		// RTTI mechanism for producing unique type IDs in LLVM.
11		//
12		//===----------------------------------------------------------------------===//
13
14		#ifndef MLIR_SUPPORT_TYPEID_H
15		#define MLIR_SUPPORT_TYPEID_H
16
17		#include "mlir/Support/LLVM.h"
18		#include "llvm/ADT/DenseMapInfo.h"
19		#include "llvm/Support/PointerLikeTypeTraits.h"
20
21		namespace mlir {
22
23		/// This class provides an efficient unique identifier for a specific C++ type.
24		/// This allows for a C++ type to be compared, hashed, and stored in an opaque
25		/// context. This class is similar in some ways to std::type_index, but can be
26		/// used for any type. For example, this class could be used to implement LLVM
27		/// style isa/dyn_cast functionality for a type hierarchy:
28		///
29		/// struct Base {
30		/// Base(TypeID typeID) : typeID(typeID) {}
31		/// TypeID typeID;
32		/// };
33		///
34		/// struct DerivedA : public Base {
35		/// DerivedA() : Base(TypeID::get<DerivedA>()) {}
36		///
37		/// static bool classof(const Base *base) {
38		/// return base->typeID == TypeID::get<DerivedA>();
39		/// }
40		/// };
41		///
42		/// void foo(Base *base) {
43		/// if (DerivedA *a = llvm::dyn_cast<DerivedA>(base))
44		/// ...
45		/// }
46		///
47		class TypeID {
48		/// This class represents the storage of a type info object.
49		/// Note: We specify an explicit alignment here to allow use with
50		/// PointerIntPair and other utilities/data structures that require a known
51		/// pointer alignment.
52		struct alignas(8) Storage {};
53
54		public:
55	0	TypeID() : TypeID(get<void>()) {}
56		TypeID(const TypeID &) = default;
57
58		/// Comparison operations.
59	0	bool operator==(const TypeID &other) const {
60	0	return storage == other.storage;
61	0	}
62	0	bool operator!=(const TypeID &other) const { return !(*this == other); }
63
64		/// Construct a type info object for the given type T.
65		/// TODO: This currently won't work when using DLLs as it requires properly
66		/// attaching dllimport and dllexport. Fix this when that information is
67		/// available within LLVM.
68		template <typename T>
69	0	LLVM_EXTERNAL_VISIBILITY static TypeID get() {
70	0	static Storage instance;
71	0	return TypeID(&instance);
72	0	} Unexecuted instantiation: _ZN4mlir6TypeID3getIvEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_23MemoryEffectOpInterfaceEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_12AffineLoadOpEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_13AffineStoreOpEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_18AffineVectorLoadOpEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_19AffineVectorStoreOpEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_21OpAsmDialectInterfaceEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_17SymbolOpInterfaceEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_6ViewOpEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_9SubViewOpEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7AllocOpEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_13AffineApplyOpEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_12MemRefCastOpEEES0_v Unexecuted instantiation: 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73		template <template <typename> class Trait>
74	0	LLVM_EXTERNAL_VISIBILITY static TypeID get() {
75	0	static Storage instance;
76	0	return TypeID(&instance);
77	0	} Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait23HasRecursiveSideEffectsEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait12ConstantLikeEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait16VariadicOperandsEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait10ZeroResultEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait10ZeroRegionEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait9OneResultEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait13ZeroSuccessorEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_23MemoryEffectOpInterface5TraitEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait9OneRegionEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait29SingleBlockImplicitTerminatorINS_18AffineTerminatorOpEE4ImplEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_19LoopLikeOpInterface5TraitEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait8NRegionsILj2EE4ImplEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait16AtLeastNOperandsILj1EE4ImplEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_21AffineReadOpInterface5TraitEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait16AtLeastNOperandsILj2EE4ImplEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_22AffineWriteOpInterface5TraitEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait12ZeroOperandsEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait12IsTerminatorEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait11AffineScopeEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait10OneOperandEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait25SameOperandsAndResultTypeEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait9NOperandsILj2EE4ImplEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait13IsCommutativeEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait9HasParentINS_18GenericAtomicRMWOpEE4ImplEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait12OneSuccessorEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_17BranchOpInterface5TraitEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait15VariadicResultsEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_15CallOpInterface5TraitEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait16SameTypeOperandsEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait26SameOperandsAndResultShapeEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait11NSuccessorsILj2EE4ImplEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait24AttrSizedOperandSegmentsEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_16OpAsmOpInterface5TraitEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait29SingleBlockImplicitTerminatorINS_13AtomicYieldOpEE4ImplEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait9HasParentINS_6FuncOpEE4ImplEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait10ReturnLikeEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait9NOperandsILj3EE4ImplEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_19ViewLikeOpInterface5TraitEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait32SameOperandsAndResultElementTypeEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait17SameOperandsShapeEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait23SameOperandsElementTypeEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait24AutomaticAllocationScopeEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait19IsIsolatedFromAboveEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait12FunctionLikeEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_19CallableOpInterface5TraitEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_17SymbolOpInterface5TraitEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait11SymbolTableEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait29SingleBlockImplicitTerminatorINS_18ModuleTerminatorOpEE4ImplEEES0_v Unexecuted instantiation: _ZN4mlir6TypeID3getINS_7OpTrait9HasParentINS_8ModuleOpEE4ImplEEES0_v
78
79		/// Methods for supporting PointerLikeTypeTraits.
80	0	const void *getAsOpaquePointer() const {
81	0	return static_cast<const void *>(storage);
82	0	}
83	0	static TypeID getFromOpaquePointer(const void *pointer) {
84	0	return TypeID(reinterpret_cast<const Storage *>(pointer));
85	0	}
86
87		/// Enable hashing TypeID.
88		friend ::llvm::hash_code hash_value(TypeID id);
89
90		private:
91	0	TypeID(const Storage *storage) : storage(storage) {}
92
93		/// The storage of this type info object.
94		const Storage *storage;
95		};
96
97		/// Enable hashing TypeID.
98	0	inline ::llvm::hash_code hash_value(TypeID id) {
99	0	return llvm::hash_value(id.storage);
100	0	}
101
102		} // end namespace mlir
103
104		namespace llvm {
105		template <> struct DenseMapInfo<mlir::TypeID> {
106	0	static mlir::TypeID getEmptyKey() {
107	0	void pointer = llvm::DenseMapInfo<void >::getEmptyKey();
108	0	return mlir::TypeID::getFromOpaquePointer(pointer);
109	0	}
110	0	static mlir::TypeID getTombstoneKey() {
111	0	void pointer = llvm::DenseMapInfo<void >::getTombstoneKey();
112	0	return mlir::TypeID::getFromOpaquePointer(pointer);
113	0	}
114	0	static unsigned getHashValue(mlir::TypeID val) {
115	0	return mlir::hash_value(val);
116	0	}
117	0	static bool isEqual(mlir::TypeID lhs, mlir::TypeID rhs) { return lhs == rhs; }
118		};
119
120		/// We align TypeID::Storage by 8, so allow LLVM to steal the low bits.
121		template <> struct PointerLikeTypeTraits<mlir::TypeID> {
122	0	static inline void *getAsVoidPointer(mlir::TypeID info) {
123	0	return const_cast<void *>(info.getAsOpaquePointer());
124	0	}
125	0	static inline mlir::TypeID getFromVoidPointer(void *ptr) {
126	0	return mlir::TypeID::getFromOpaquePointer(ptr);
127	0	}
128		static constexpr int NumLowBitsAvailable = 3;
129		};
130
131		} // end namespace llvm
132
133		#endif // MLIR_SUPPORT_TYPEID_H

Coverage Report

Created: 2020-06-26 05:44