/home/arjun/llvm-project/llvm/include/llvm/Support/AllocatorBase.h

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//===- AllocatorBase.h - Simple memory allocation abstraction ---*- 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
//
//===----------------------------------------------------------------------===//
/// \file
///
/// This file defines MallocAllocator. MallocAllocator conforms to the LLVM
/// "Allocator" concept which consists of an Allocate method accepting a size
/// and alignment, and a Deallocate accepting a pointer and size. Further, the
/// LLVM "Allocator" concept has overloads of Allocate and Deallocate for
/// setting size and alignment based on the final type. These overloads are
/// typically provided by a base class template \c AllocatorBase.
///
//===----------------------------------------------------------------------===//

#ifndef LLVM_SUPPORT_ALLOCATORBASE_H
#define LLVM_SUPPORT_ALLOCATORBASE_H

#include "llvm/Support/Compiler.h"
#include "llvm/Support/MemAlloc.h"

namespace llvm {

/// CRTP base class providing obvious overloads for the core \c
/// Allocate() methods of LLVM-style allocators.
///
/// This base class both documents the full public interface exposed by all
/// LLVM-style allocators, and redirects all of the overloads to a single core
/// set of methods which the derived class must define.
template <typename DerivedT> class AllocatorBase {
public:
  /// Allocate \a Size bytes of \a Alignment aligned memory. This method
  /// must be implemented by \c DerivedT.
  void *Allocate(size_t Size, size_t Alignment) {
#ifdef __clang__
    static_assert(static_cast<void *(AllocatorBase::*)(size_t, size_t)>(
                      &AllocatorBase::Allocate) !=
                      static_cast<void *(DerivedT::*)(size_t, size_t)>(
                          &DerivedT::Allocate),
                  "Class derives from AllocatorBase without implementing the "
                  "core Allocate(size_t, size_t) overload!");
#endif
    return static_cast<DerivedT *>(this)->Allocate(Size, Alignment);
  }

  /// Deallocate \a Ptr to \a Size bytes of memory allocated by this
  /// allocator.
  void Deallocate(const void *Ptr, size_t Size, size_t Alignment) {
#ifdef __clang__
    static_assert(
        static_cast<void (AllocatorBase::*)(const void *, size_t, size_t)>(
            &AllocatorBase::Deallocate) !=
            static_cast<void (DerivedT::*)(const void *, size_t, size_t)>(
                &DerivedT::Deallocate),
        "Class derives from AllocatorBase without implementing the "
        "core Deallocate(void *) overload!");
#endif
    return static_cast<DerivedT *>(this)->Deallocate(Ptr, Size, Alignment);
  }

  // The rest of these methods are helpers that redirect to one of the above
  // core methods.

  /// Allocate space for a sequence of objects without constructing them.
  template <typename T> T *Allocate(size_t Num = 1) {
    return static_cast<T *>(Allocate(Num * sizeof(T), alignof(T)));
  }

  /// Deallocate space for a sequence of objects without constructing them.
  template <typename T>
  std::enable_if_t<!std::is_same<std::remove_cv_t<T>, void>::value, void>
  Deallocate(T *Ptr, size_t Num = 1) {
    Deallocate(static_cast<const void *>(Ptr), Num * sizeof(T), alignof(T));
  }
};

class MallocAllocator : public AllocatorBase<MallocAllocator> {
public:
  void Reset() {}

  LLVM_ATTRIBUTE_RETURNS_NONNULL void *Allocate(size_t Size, size_t Alignment) {
    return allocate_buffer(Size, Alignment);
  }

  // Pull in base class overloads.
  using AllocatorBase<MallocAllocator>::Allocate;

  void Deallocate(const void *Ptr, size_t Size, size_t Alignment) {
    deallocate_buffer(const_cast<void *>(Ptr), Size, Alignment);
  }

  // Pull in base class overloads.
  using AllocatorBase<MallocAllocator>::Deallocate;

  void PrintStats() const {}
};

} // namespace llvm

#endif // LLVM_SUPPORT_ALLOCATORBASE_H

Line	Count	Source (jump to first uncovered line)
1		//===- AllocatorBase.h - Simple memory allocation abstraction ---- 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		/// \file
9		///
10		/// This file defines MallocAllocator. MallocAllocator conforms to the LLVM
11		/// "Allocator" concept which consists of an Allocate method accepting a size
12		/// and alignment, and a Deallocate accepting a pointer and size. Further, the
13		/// LLVM "Allocator" concept has overloads of Allocate and Deallocate for
14		/// setting size and alignment based on the final type. These overloads are
15		/// typically provided by a base class template \c AllocatorBase.
16		///
17		//===----------------------------------------------------------------------===//
18
19		#ifndef LLVM_SUPPORT_ALLOCATORBASE_H
20		#define LLVM_SUPPORT_ALLOCATORBASE_H
21
22		#include "llvm/Support/Compiler.h"
23		#include "llvm/Support/MemAlloc.h"
24
25		namespace llvm {
26
27		/// CRTP base class providing obvious overloads for the core \c
28		/// Allocate() methods of LLVM-style allocators.
29		///
30		/// This base class both documents the full public interface exposed by all
31		/// LLVM-style allocators, and redirects all of the overloads to a single core
32		/// set of methods which the derived class must define.
33		template <typename DerivedT> class AllocatorBase {
34		public:
35		/// Allocate \a Size bytes of \a Alignment aligned memory. This method
36		/// must be implemented by \c DerivedT.
37	0	void *Allocate(size_t Size, size_t Alignment) {
38	0	#ifdef __clang__
39	0	static_assert(static_cast<void (AllocatorBase::)(size_t, size_t)>(
40	0	&AllocatorBase::Allocate) !=
41	0	static_cast<void (DerivedT::)(size_t, size_t)>(
42	0	&DerivedT::Allocate),
43	0	"Class derives from AllocatorBase without implementing the "
44	0	"core Allocate(size_t, size_t) overload!");
45	0	#endif
46	0	return static_cast<DerivedT *>(this)->Allocate(Size, Alignment);
47	0	} Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateEmm Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_15MallocAllocatorEE8AllocateEmm
48
49		/// Deallocate \a Ptr to \a Size bytes of memory allocated by this
50		/// allocator.
51	0	void Deallocate(const void *Ptr, size_t Size, size_t Alignment) {
52	0	#ifdef __clang__
53	0	static_assert(
54	0	static_cast<void (AllocatorBase::)(const void , size_t, size_t)>(
55	0	&AllocatorBase::Deallocate) !=
56	0	static_cast<void (DerivedT::)(const void , size_t, size_t)>(
57	0	&DerivedT::Deallocate),
58	0	"Class derives from AllocatorBase without implementing the "
59	0	"core Deallocate(void *) overload!");
60	0	#endif
61	0	return static_cast<DerivedT *>(this)->Deallocate(Ptr, Size, Alignment);
62	0	} Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE10DeallocateEPKvmm Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_15MallocAllocatorEE10DeallocateEPKvmm
63
64		// The rest of these methods are helpers that redirect to one of the above
65		// core methods.
66
67		/// Allocate space for a sequence of objects without constructing them.
68	0	template <typename T> T *Allocate(size_t Num = 1) {
69	0	return static_cast<T >(Allocate(Num sizeof(T), alignof(T)));
70	0	} Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIcEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIjEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail20AffineDimExprStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail25AffineConstantExprStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail25AffineBinaryOpExprStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_15MallocAllocatorEE8AllocateINS_18ScopedHashTableValINS_9StringRefEcEEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail25AffineMapAttributeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail21ArrayAttributeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir9AttributeEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail26IntegerSetAttributeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail22OpaqueAttributeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail22StringAttributeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail20TypeAttributeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail35DenseStringElementsAttributeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail36DenseIntOrFPElementsAttributeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail30OpaqueElementsAttributeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail30SparseElementsAttributeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail20BoolAttributeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail23CallSiteLocationStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail26FileLineColLocationStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail19NameLocationStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail21OpaqueLocationStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail17IntegerSetStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir10AffineExprEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIbEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir11TypeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail18IntegerTypeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir16AttributeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail16AffineMapStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail17OpaqueTypeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir4TypeEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail19FunctionTypeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIlEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail17VectorTypeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail23RankedTensorTypeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail25UnrankedTensorTypeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir9AffineMapEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail17MemRefTypeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail25UnrankedMemRefTypeStorageEEEPT_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE8AllocateIN4mlir6detail18ComplexTypeStorageEEEPT_m
71
72		/// Deallocate space for a sequence of objects without constructing them.
73		template <typename T>
74		std::enable_if_t<!std::is_same<std::remove_cv_t<T>, void>::value, void>
75	0	Deallocate(T *Ptr, size_t Num = 1) {
76	0	Deallocate(static_cast<const void >(Ptr), Num sizeof(T), alignof(T));
77	0	} Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_20BumpPtrAllocatorImplINS_15MallocAllocatorELm4096ELm4096ELm128EEEE10DeallocateINS_13AllocatorListINS_4yaml5TokenES3_E4NodeEEENSt9enable_ifIXntsr3std7is_sameINSt9remove_cvIT_E4typeEvEE5valueEvE4typeEPSD_m Unexecuted instantiation: _ZN4llvm13AllocatorBaseINS_15MallocAllocatorEE10DeallocateINS_18ScopedHashTableValINS_9StringRefEcEEEENSt9enable_ifIXntsr3std7is_sameINSt9remove_cvIT_E4typeEvEE5valueEvE4typeEPS9_m
78		};
79
80		class MallocAllocator : public AllocatorBase<MallocAllocator> {
81		public:
82	0	void Reset() {}
83
84	40	LLVM_ATTRIBUTE_RETURNS_NONNULL void *Allocate(size_t Size, size_t Alignment) {
85	40	return allocate_buffer(Size, Alignment);
86	40	}
87
88		// Pull in base class overloads.
89		using AllocatorBase<MallocAllocator>::Allocate;
90
91	0	void Deallocate(const void *Ptr, size_t Size, size_t Alignment) {
92	0	deallocate_buffer(const_cast<void *>(Ptr), Size, Alignment);
93	0	}
94
95		// Pull in base class overloads.
96		using AllocatorBase<MallocAllocator>::Deallocate;
97
98	0	void PrintStats() const {}
99		};
100
101		} // namespace llvm
102
103		#endif // LLVM_SUPPORT_ALLOCATORBASE_H

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Created: 2020-06-26 05:44