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author | Chunseok Lee <chunseok.lee@samsung.com> | 2018-05-04 17:57:16 +0900 |
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committer | Chunseok Lee <chunseok.lee@samsung.com> | 2018-05-04 17:57:16 +0900 |
commit | 07659ccd9fe7b1cf1547cc6cad78bcf489f0a361 (patch) | |
tree | cf3a123812b7f1ad8b50d7d0ace891e0c03c6110 /runtimes/nn/depend/external/eigen/Eigen/src/Core/util/Memory.h | |
parent | da6f7a3e8360a49fd073a6e0031a4da134d9d984 (diff) | |
download | nnfw-07659ccd9fe7b1cf1547cc6cad78bcf489f0a361.tar.gz nnfw-07659ccd9fe7b1cf1547cc6cad78bcf489f0a361.tar.bz2 nnfw-07659ccd9fe7b1cf1547cc6cad78bcf489f0a361.zip |
Imported Upstream version 0.1upstream/0.1submit/tizen/20180504.091146
Diffstat (limited to 'runtimes/nn/depend/external/eigen/Eigen/src/Core/util/Memory.h')
-rw-r--r-- | runtimes/nn/depend/external/eigen/Eigen/src/Core/util/Memory.h | 977 |
1 files changed, 977 insertions, 0 deletions
diff --git a/runtimes/nn/depend/external/eigen/Eigen/src/Core/util/Memory.h b/runtimes/nn/depend/external/eigen/Eigen/src/Core/util/Memory.h new file mode 100644 index 000000000..c634d7ea0 --- /dev/null +++ b/runtimes/nn/depend/external/eigen/Eigen/src/Core/util/Memory.h @@ -0,0 +1,977 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 2008-2015 Gael Guennebaud <gael.guennebaud@inria.fr> +// Copyright (C) 2008-2009 Benoit Jacob <jacob.benoit.1@gmail.com> +// Copyright (C) 2009 Kenneth Riddile <kfriddile@yahoo.com> +// Copyright (C) 2010 Hauke Heibel <hauke.heibel@gmail.com> +// Copyright (C) 2010 Thomas Capricelli <orzel@freehackers.org> +// Copyright (C) 2013 Pavel Holoborodko <pavel@holoborodko.com> +// +// This Source Code Form is subject to the terms of the Mozilla +// Public License v. 2.0. If a copy of the MPL was not distributed +// with this file, You can obtain one at http://mozilla.org/MPL/2.0/. + + +/***************************************************************************** +*** Platform checks for aligned malloc functions *** +*****************************************************************************/ + +#ifndef EIGEN_MEMORY_H +#define EIGEN_MEMORY_H + +#ifndef EIGEN_MALLOC_ALREADY_ALIGNED + +// Try to determine automatically if malloc is already aligned. + +// On 64-bit systems, glibc's malloc returns 16-byte-aligned pointers, see: +// http://www.gnu.org/s/libc/manual/html_node/Aligned-Memory-Blocks.html +// This is true at least since glibc 2.8. +// This leaves the question how to detect 64-bit. According to this document, +// http://gcc.fyxm.net/summit/2003/Porting%20to%2064%20bit.pdf +// page 114, "[The] LP64 model [...] is used by all 64-bit UNIX ports" so it's indeed +// quite safe, at least within the context of glibc, to equate 64-bit with LP64. +#if defined(__GLIBC__) && ((__GLIBC__>=2 && __GLIBC_MINOR__ >= 8) || __GLIBC__>2) \ + && defined(__LP64__) && ! defined( __SANITIZE_ADDRESS__ ) && (EIGEN_DEFAULT_ALIGN_BYTES == 16) + #define EIGEN_GLIBC_MALLOC_ALREADY_ALIGNED 1 +#else + #define EIGEN_GLIBC_MALLOC_ALREADY_ALIGNED 0 +#endif + +// FreeBSD 6 seems to have 16-byte aligned malloc +// See http://svn.freebsd.org/viewvc/base/stable/6/lib/libc/stdlib/malloc.c?view=markup +// FreeBSD 7 seems to have 16-byte aligned malloc except on ARM and MIPS architectures +// See http://svn.freebsd.org/viewvc/base/stable/7/lib/libc/stdlib/malloc.c?view=markup +#if defined(__FreeBSD__) && !(EIGEN_ARCH_ARM || EIGEN_ARCH_MIPS) && (EIGEN_DEFAULT_ALIGN_BYTES == 16) + #define EIGEN_FREEBSD_MALLOC_ALREADY_ALIGNED 1 +#else + #define EIGEN_FREEBSD_MALLOC_ALREADY_ALIGNED 0 +#endif + +#if (EIGEN_OS_MAC && (EIGEN_DEFAULT_ALIGN_BYTES == 16)) \ + || (EIGEN_OS_WIN64 && (EIGEN_DEFAULT_ALIGN_BYTES == 16)) \ + || EIGEN_GLIBC_MALLOC_ALREADY_ALIGNED \ + || EIGEN_FREEBSD_MALLOC_ALREADY_ALIGNED + #define EIGEN_MALLOC_ALREADY_ALIGNED 1 +#else + #define EIGEN_MALLOC_ALREADY_ALIGNED 0 +#endif + +#endif + +namespace Eigen { + +namespace internal { + +EIGEN_DEVICE_FUNC +inline void throw_std_bad_alloc() +{ + #ifdef EIGEN_EXCEPTIONS + throw std::bad_alloc(); + #else + std::size_t huge = static_cast<std::size_t>(-1); + new int[huge]; + #endif +} + +/***************************************************************************** +*** Implementation of handmade aligned functions *** +*****************************************************************************/ + +/* ----- Hand made implementations of aligned malloc/free and realloc ----- */ + +/** \internal Like malloc, but the returned pointer is guaranteed to be 16-byte aligned. + * Fast, but wastes 16 additional bytes of memory. Does not throw any exception. + */ +inline void* handmade_aligned_malloc(std::size_t size) +{ + void *original = std::malloc(size+EIGEN_DEFAULT_ALIGN_BYTES); + if (original == 0) return 0; + void *aligned = reinterpret_cast<void*>((reinterpret_cast<std::size_t>(original) & ~(std::size_t(EIGEN_DEFAULT_ALIGN_BYTES-1))) + EIGEN_DEFAULT_ALIGN_BYTES); + *(reinterpret_cast<void**>(aligned) - 1) = original; + return aligned; +} + +/** \internal Frees memory allocated with handmade_aligned_malloc */ +inline void handmade_aligned_free(void *ptr) +{ + if (ptr) std::free(*(reinterpret_cast<void**>(ptr) - 1)); +} + +/** \internal + * \brief Reallocates aligned memory. + * Since we know that our handmade version is based on std::malloc + * we can use std::realloc to implement efficient reallocation. + */ +inline void* handmade_aligned_realloc(void* ptr, std::size_t size, std::size_t = 0) +{ + if (ptr == 0) return handmade_aligned_malloc(size); + void *original = *(reinterpret_cast<void**>(ptr) - 1); + std::ptrdiff_t previous_offset = static_cast<char *>(ptr)-static_cast<char *>(original); + original = std::realloc(original,size+EIGEN_DEFAULT_ALIGN_BYTES); + if (original == 0) return 0; + void *aligned = reinterpret_cast<void*>((reinterpret_cast<std::size_t>(original) & ~(std::size_t(EIGEN_DEFAULT_ALIGN_BYTES-1))) + EIGEN_DEFAULT_ALIGN_BYTES); + void *previous_aligned = static_cast<char *>(original)+previous_offset; + if(aligned!=previous_aligned) + std::memmove(aligned, previous_aligned, size); + + *(reinterpret_cast<void**>(aligned) - 1) = original; + return aligned; +} + +/***************************************************************************** +*** Implementation of portable aligned versions of malloc/free/realloc *** +*****************************************************************************/ + +#ifdef EIGEN_NO_MALLOC +EIGEN_DEVICE_FUNC inline void check_that_malloc_is_allowed() +{ + eigen_assert(false && "heap allocation is forbidden (EIGEN_NO_MALLOC is defined)"); +} +#elif defined EIGEN_RUNTIME_NO_MALLOC +EIGEN_DEVICE_FUNC inline bool is_malloc_allowed_impl(bool update, bool new_value = false) +{ + static bool value = true; + if (update == 1) + value = new_value; + return value; +} +EIGEN_DEVICE_FUNC inline bool is_malloc_allowed() { return is_malloc_allowed_impl(false); } +EIGEN_DEVICE_FUNC inline bool set_is_malloc_allowed(bool new_value) { return is_malloc_allowed_impl(true, new_value); } +EIGEN_DEVICE_FUNC inline void check_that_malloc_is_allowed() +{ + eigen_assert(is_malloc_allowed() && "heap allocation is forbidden (EIGEN_RUNTIME_NO_MALLOC is defined and g_is_malloc_allowed is false)"); +} +#else +EIGEN_DEVICE_FUNC inline void check_that_malloc_is_allowed() +{} +#endif + +/** \internal Allocates \a size bytes. The returned pointer is guaranteed to have 16 or 32 bytes alignment depending on the requirements. + * On allocation error, the returned pointer is null, and std::bad_alloc is thrown. + */ +EIGEN_DEVICE_FUNC inline void* aligned_malloc(std::size_t size) +{ + check_that_malloc_is_allowed(); + + void *result; + #if (EIGEN_DEFAULT_ALIGN_BYTES==0) || EIGEN_MALLOC_ALREADY_ALIGNED + result = std::malloc(size); + #if EIGEN_DEFAULT_ALIGN_BYTES==16 + eigen_assert((size<16 || (std::size_t(result)%16)==0) && "System's malloc returned an unaligned pointer. Compile with EIGEN_MALLOC_ALREADY_ALIGNED=0 to fallback to handmade alignd memory allocator."); + #endif + #else + result = handmade_aligned_malloc(size); + #endif + + if(!result && size) + throw_std_bad_alloc(); + + return result; +} + +/** \internal Frees memory allocated with aligned_malloc. */ +EIGEN_DEVICE_FUNC inline void aligned_free(void *ptr) +{ + #if (EIGEN_DEFAULT_ALIGN_BYTES==0) || EIGEN_MALLOC_ALREADY_ALIGNED + std::free(ptr); + #else + handmade_aligned_free(ptr); + #endif +} + +/** + * \internal + * \brief Reallocates an aligned block of memory. + * \throws std::bad_alloc on allocation failure + */ +inline void* aligned_realloc(void *ptr, std::size_t new_size, std::size_t old_size) +{ + EIGEN_UNUSED_VARIABLE(old_size); + + void *result; +#if (EIGEN_DEFAULT_ALIGN_BYTES==0) || EIGEN_MALLOC_ALREADY_ALIGNED + result = std::realloc(ptr,new_size); +#else + result = handmade_aligned_realloc(ptr,new_size,old_size); +#endif + + if (!result && new_size) + throw_std_bad_alloc(); + + return result; +} + +/***************************************************************************** +*** Implementation of conditionally aligned functions *** +*****************************************************************************/ + +/** \internal Allocates \a size bytes. If Align is true, then the returned ptr is 16-byte-aligned. + * On allocation error, the returned pointer is null, and a std::bad_alloc is thrown. + */ +template<bool Align> EIGEN_DEVICE_FUNC inline void* conditional_aligned_malloc(std::size_t size) +{ + return aligned_malloc(size); +} + +template<> EIGEN_DEVICE_FUNC inline void* conditional_aligned_malloc<false>(std::size_t size) +{ + check_that_malloc_is_allowed(); + + void *result = std::malloc(size); + if(!result && size) + throw_std_bad_alloc(); + return result; +} + +/** \internal Frees memory allocated with conditional_aligned_malloc */ +template<bool Align> EIGEN_DEVICE_FUNC inline void conditional_aligned_free(void *ptr) +{ + aligned_free(ptr); +} + +template<> EIGEN_DEVICE_FUNC inline void conditional_aligned_free<false>(void *ptr) +{ + std::free(ptr); +} + +template<bool Align> inline void* conditional_aligned_realloc(void* ptr, std::size_t new_size, std::size_t old_size) +{ + return aligned_realloc(ptr, new_size, old_size); +} + +template<> inline void* conditional_aligned_realloc<false>(void* ptr, std::size_t new_size, std::size_t) +{ + return std::realloc(ptr, new_size); +} + +/***************************************************************************** +*** Construction/destruction of array elements *** +*****************************************************************************/ + +/** \internal Destructs the elements of an array. + * The \a size parameters tells on how many objects to call the destructor of T. + */ +template<typename T> EIGEN_DEVICE_FUNC inline void destruct_elements_of_array(T *ptr, std::size_t size) +{ + // always destruct an array starting from the end. + if(ptr) + while(size) ptr[--size].~T(); +} + +/** \internal Constructs the elements of an array. + * The \a size parameter tells on how many objects to call the constructor of T. + */ +template<typename T> EIGEN_DEVICE_FUNC inline T* construct_elements_of_array(T *ptr, std::size_t size) +{ + std::size_t i; + EIGEN_TRY + { + for (i = 0; i < size; ++i) ::new (ptr + i) T; + return ptr; + } + EIGEN_CATCH(...) + { + destruct_elements_of_array(ptr, i); + EIGEN_THROW; + } + return NULL; +} + +/***************************************************************************** +*** Implementation of aligned new/delete-like functions *** +*****************************************************************************/ + +template<typename T> +EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE void check_size_for_overflow(std::size_t size) +{ + if(size > std::size_t(-1) / sizeof(T)) + throw_std_bad_alloc(); +} + +/** \internal Allocates \a size objects of type T. The returned pointer is guaranteed to have 16 bytes alignment. + * On allocation error, the returned pointer is undefined, but a std::bad_alloc is thrown. + * The default constructor of T is called. + */ +template<typename T> EIGEN_DEVICE_FUNC inline T* aligned_new(std::size_t size) +{ + check_size_for_overflow<T>(size); + T *result = reinterpret_cast<T*>(aligned_malloc(sizeof(T)*size)); + EIGEN_TRY + { + return construct_elements_of_array(result, size); + } + EIGEN_CATCH(...) + { + aligned_free(result); + EIGEN_THROW; + } + return result; +} + +template<typename T, bool Align> EIGEN_DEVICE_FUNC inline T* conditional_aligned_new(std::size_t size) +{ + check_size_for_overflow<T>(size); + T *result = reinterpret_cast<T*>(conditional_aligned_malloc<Align>(sizeof(T)*size)); + EIGEN_TRY + { + return construct_elements_of_array(result, size); + } + EIGEN_CATCH(...) + { + conditional_aligned_free<Align>(result); + EIGEN_THROW; + } + return result; +} + +/** \internal Deletes objects constructed with aligned_new + * The \a size parameters tells on how many objects to call the destructor of T. + */ +template<typename T> EIGEN_DEVICE_FUNC inline void aligned_delete(T *ptr, std::size_t size) +{ + destruct_elements_of_array<T>(ptr, size); + aligned_free(ptr); +} + +/** \internal Deletes objects constructed with conditional_aligned_new + * The \a size parameters tells on how many objects to call the destructor of T. + */ +template<typename T, bool Align> EIGEN_DEVICE_FUNC inline void conditional_aligned_delete(T *ptr, std::size_t size) +{ + destruct_elements_of_array<T>(ptr, size); + conditional_aligned_free<Align>(ptr); +} + +template<typename T, bool Align> EIGEN_DEVICE_FUNC inline T* conditional_aligned_realloc_new(T* pts, std::size_t new_size, std::size_t old_size) +{ + check_size_for_overflow<T>(new_size); + check_size_for_overflow<T>(old_size); + if(new_size < old_size) + destruct_elements_of_array(pts+new_size, old_size-new_size); + T *result = reinterpret_cast<T*>(conditional_aligned_realloc<Align>(reinterpret_cast<void*>(pts), sizeof(T)*new_size, sizeof(T)*old_size)); + if(new_size > old_size) + { + EIGEN_TRY + { + construct_elements_of_array(result+old_size, new_size-old_size); + } + EIGEN_CATCH(...) + { + conditional_aligned_free<Align>(result); + EIGEN_THROW; + } + } + return result; +} + + +template<typename T, bool Align> EIGEN_DEVICE_FUNC inline T* conditional_aligned_new_auto(std::size_t size) +{ + if(size==0) + return 0; // short-cut. Also fixes Bug 884 + check_size_for_overflow<T>(size); + T *result = reinterpret_cast<T*>(conditional_aligned_malloc<Align>(sizeof(T)*size)); + if(NumTraits<T>::RequireInitialization) + { + EIGEN_TRY + { + construct_elements_of_array(result, size); + } + EIGEN_CATCH(...) + { + conditional_aligned_free<Align>(result); + EIGEN_THROW; + } + } + return result; +} + +template<typename T, bool Align> inline T* conditional_aligned_realloc_new_auto(T* pts, std::size_t new_size, std::size_t old_size) +{ + check_size_for_overflow<T>(new_size); + check_size_for_overflow<T>(old_size); + if(NumTraits<T>::RequireInitialization && (new_size < old_size)) + destruct_elements_of_array(pts+new_size, old_size-new_size); + T *result = reinterpret_cast<T*>(conditional_aligned_realloc<Align>(reinterpret_cast<void*>(pts), sizeof(T)*new_size, sizeof(T)*old_size)); + if(NumTraits<T>::RequireInitialization && (new_size > old_size)) + { + EIGEN_TRY + { + construct_elements_of_array(result+old_size, new_size-old_size); + } + EIGEN_CATCH(...) + { + conditional_aligned_free<Align>(result); + EIGEN_THROW; + } + } + return result; +} + +template<typename T, bool Align> EIGEN_DEVICE_FUNC inline void conditional_aligned_delete_auto(T *ptr, std::size_t size) +{ + if(NumTraits<T>::RequireInitialization) + destruct_elements_of_array<T>(ptr, size); + conditional_aligned_free<Align>(ptr); +} + +/****************************************************************************/ + +/** \internal Returns the index of the first element of the array that is well aligned with respect to the requested \a Alignment. + * + * \tparam Alignment requested alignment in Bytes. + * \param array the address of the start of the array + * \param size the size of the array + * + * \note If no element of the array is well aligned or the requested alignment is not a multiple of a scalar, + * the size of the array is returned. For example with SSE, the requested alignment is typically 16-bytes. If + * packet size for the given scalar type is 1, then everything is considered well-aligned. + * + * \note Otherwise, if the Alignment is larger that the scalar size, we rely on the assumptions that sizeof(Scalar) is a + * power of 2. On the other hand, we do not assume that the array address is a multiple of sizeof(Scalar), as that fails for + * example with Scalar=double on certain 32-bit platforms, see bug #79. + * + * There is also the variant first_aligned(const MatrixBase&) defined in DenseCoeffsBase.h. + * \sa first_default_aligned() + */ +template<int Alignment, typename Scalar, typename Index> +EIGEN_DEVICE_FUNC inline Index first_aligned(const Scalar* array, Index size) +{ + const Index ScalarSize = sizeof(Scalar); + const Index AlignmentSize = Alignment / ScalarSize; + const Index AlignmentMask = AlignmentSize-1; + + if(AlignmentSize<=1) + { + // Either the requested alignment if smaller than a scalar, or it exactly match a 1 scalar + // so that all elements of the array have the same alignment. + return 0; + } + else if( (UIntPtr(array) & (sizeof(Scalar)-1)) || (Alignment%ScalarSize)!=0) + { + // The array is not aligned to the size of a single scalar, or the requested alignment is not a multiple of the scalar size. + // Consequently, no element of the array is well aligned. + return size; + } + else + { + Index first = (AlignmentSize - (Index((UIntPtr(array)/sizeof(Scalar))) & AlignmentMask)) & AlignmentMask; + return (first < size) ? first : size; + } +} + +/** \internal Returns the index of the first element of the array that is well aligned with respect the largest packet requirement. + * \sa first_aligned(Scalar*,Index) and first_default_aligned(DenseBase<Derived>) */ +template<typename Scalar, typename Index> +EIGEN_DEVICE_FUNC inline Index first_default_aligned(const Scalar* array, Index size) +{ + typedef typename packet_traits<Scalar>::type DefaultPacketType; + return first_aligned<unpacket_traits<DefaultPacketType>::alignment>(array, size); +} + +/** \internal Returns the smallest integer multiple of \a base and greater or equal to \a size + */ +template<typename Index> +inline Index first_multiple(Index size, Index base) +{ + return ((size+base-1)/base)*base; +} + +// std::copy is much slower than memcpy, so let's introduce a smart_copy which +// use memcpy on trivial types, i.e., on types that does not require an initialization ctor. +template<typename T, bool UseMemcpy> struct smart_copy_helper; + +template<typename T> EIGEN_DEVICE_FUNC void smart_copy(const T* start, const T* end, T* target) +{ + smart_copy_helper<T,!NumTraits<T>::RequireInitialization>::run(start, end, target); +} + +template<typename T> struct smart_copy_helper<T,true> { + EIGEN_DEVICE_FUNC static inline void run(const T* start, const T* end, T* target) + { + IntPtr size = IntPtr(end)-IntPtr(start); + if(size==0) return; + eigen_internal_assert(start!=0 && end!=0 && target!=0); + memcpy(target, start, size); + } +}; + +template<typename T> struct smart_copy_helper<T,false> { + EIGEN_DEVICE_FUNC static inline void run(const T* start, const T* end, T* target) + { std::copy(start, end, target); } +}; + +// intelligent memmove. falls back to std::memmove for POD types, uses std::copy otherwise. +template<typename T, bool UseMemmove> struct smart_memmove_helper; + +template<typename T> void smart_memmove(const T* start, const T* end, T* target) +{ + smart_memmove_helper<T,!NumTraits<T>::RequireInitialization>::run(start, end, target); +} + +template<typename T> struct smart_memmove_helper<T,true> { + static inline void run(const T* start, const T* end, T* target) + { + IntPtr size = IntPtr(end)-IntPtr(start); + if(size==0) return; + eigen_internal_assert(start!=0 && end!=0 && target!=0); + std::memmove(target, start, size); + } +}; + +template<typename T> struct smart_memmove_helper<T,false> { + static inline void run(const T* start, const T* end, T* target) + { + if (UIntPtr(target) < UIntPtr(start)) + { + std::copy(start, end, target); + } + else + { + std::ptrdiff_t count = (std::ptrdiff_t(end)-std::ptrdiff_t(start)) / sizeof(T); + std::copy_backward(start, end, target + count); + } + } +}; + + +/***************************************************************************** +*** Implementation of runtime stack allocation (falling back to malloc) *** +*****************************************************************************/ + +// you can overwrite Eigen's default behavior regarding alloca by defining EIGEN_ALLOCA +// to the appropriate stack allocation function +#ifndef EIGEN_ALLOCA + #if EIGEN_OS_LINUX || EIGEN_OS_MAC || (defined alloca) + #define EIGEN_ALLOCA alloca + #elif EIGEN_COMP_MSVC + #define EIGEN_ALLOCA _alloca + #endif +#endif + +// This helper class construct the allocated memory, and takes care of destructing and freeing the handled data +// at destruction time. In practice this helper class is mainly useful to avoid memory leak in case of exceptions. +template<typename T> class aligned_stack_memory_handler : noncopyable +{ + public: + /* Creates a stack_memory_handler responsible for the buffer \a ptr of size \a size. + * Note that \a ptr can be 0 regardless of the other parameters. + * This constructor takes care of constructing/initializing the elements of the buffer if required by the scalar type T (see NumTraits<T>::RequireInitialization). + * In this case, the buffer elements will also be destructed when this handler will be destructed. + * Finally, if \a dealloc is true, then the pointer \a ptr is freed. + **/ + aligned_stack_memory_handler(T* ptr, std::size_t size, bool dealloc) + : m_ptr(ptr), m_size(size), m_deallocate(dealloc) + { + if(NumTraits<T>::RequireInitialization && m_ptr) + Eigen::internal::construct_elements_of_array(m_ptr, size); + } + ~aligned_stack_memory_handler() + { + if(NumTraits<T>::RequireInitialization && m_ptr) + Eigen::internal::destruct_elements_of_array<T>(m_ptr, m_size); + if(m_deallocate) + Eigen::internal::aligned_free(m_ptr); + } + protected: + T* m_ptr; + std::size_t m_size; + bool m_deallocate; +}; + +template<typename T> class scoped_array : noncopyable +{ + T* m_ptr; +public: + explicit scoped_array(std::ptrdiff_t size) + { + m_ptr = new T[size]; + } + ~scoped_array() + { + delete[] m_ptr; + } + T& operator[](std::ptrdiff_t i) { return m_ptr[i]; } + const T& operator[](std::ptrdiff_t i) const { return m_ptr[i]; } + T* &ptr() { return m_ptr; } + const T* ptr() const { return m_ptr; } + operator const T*() const { return m_ptr; } +}; + +template<typename T> void swap(scoped_array<T> &a,scoped_array<T> &b) +{ + std::swap(a.ptr(),b.ptr()); +} + +} // end namespace internal + +/** \internal + * Declares, allocates and construct an aligned buffer named NAME of SIZE elements of type TYPE on the stack + * if SIZE is smaller than EIGEN_STACK_ALLOCATION_LIMIT, and if stack allocation is supported by the platform + * (currently, this is Linux and Visual Studio only). Otherwise the memory is allocated on the heap. + * The allocated buffer is automatically deleted when exiting the scope of this declaration. + * If BUFFER is non null, then the declared variable is simply an alias for BUFFER, and no allocation/deletion occurs. + * Here is an example: + * \code + * { + * ei_declare_aligned_stack_constructed_variable(float,data,size,0); + * // use data[0] to data[size-1] + * } + * \endcode + * The underlying stack allocation function can controlled with the EIGEN_ALLOCA preprocessor token. + */ +#ifdef EIGEN_ALLOCA + + #if EIGEN_DEFAULT_ALIGN_BYTES>0 + // We always manually re-align the result of EIGEN_ALLOCA. + // If alloca is already aligned, the compiler should be smart enough to optimize away the re-alignment. + #define EIGEN_ALIGNED_ALLOCA(SIZE) reinterpret_cast<void*>((internal::UIntPtr(EIGEN_ALLOCA(SIZE+EIGEN_DEFAULT_ALIGN_BYTES-1)) + EIGEN_DEFAULT_ALIGN_BYTES-1) & ~(std::size_t(EIGEN_DEFAULT_ALIGN_BYTES-1))) + #else + #define EIGEN_ALIGNED_ALLOCA(SIZE) EIGEN_ALLOCA(SIZE) + #endif + + #define ei_declare_aligned_stack_constructed_variable(TYPE,NAME,SIZE,BUFFER) \ + Eigen::internal::check_size_for_overflow<TYPE>(SIZE); \ + TYPE* NAME = (BUFFER)!=0 ? (BUFFER) \ + : reinterpret_cast<TYPE*>( \ + (sizeof(TYPE)*SIZE<=EIGEN_STACK_ALLOCATION_LIMIT) ? EIGEN_ALIGNED_ALLOCA(sizeof(TYPE)*SIZE) \ + : Eigen::internal::aligned_malloc(sizeof(TYPE)*SIZE) ); \ + Eigen::internal::aligned_stack_memory_handler<TYPE> EIGEN_CAT(NAME,_stack_memory_destructor)((BUFFER)==0 ? NAME : 0,SIZE,sizeof(TYPE)*SIZE>EIGEN_STACK_ALLOCATION_LIMIT) + +#else + + #define ei_declare_aligned_stack_constructed_variable(TYPE,NAME,SIZE,BUFFER) \ + Eigen::internal::check_size_for_overflow<TYPE>(SIZE); \ + TYPE* NAME = (BUFFER)!=0 ? BUFFER : reinterpret_cast<TYPE*>(Eigen::internal::aligned_malloc(sizeof(TYPE)*SIZE)); \ + Eigen::internal::aligned_stack_memory_handler<TYPE> EIGEN_CAT(NAME,_stack_memory_destructor)((BUFFER)==0 ? NAME : 0,SIZE,true) + +#endif + + +/***************************************************************************** +*** Implementation of EIGEN_MAKE_ALIGNED_OPERATOR_NEW [_IF] *** +*****************************************************************************/ + +#if EIGEN_MAX_ALIGN_BYTES!=0 + #define EIGEN_MAKE_ALIGNED_OPERATOR_NEW_NOTHROW(NeedsToAlign) \ + void* operator new(std::size_t size, const std::nothrow_t&) EIGEN_NO_THROW { \ + EIGEN_TRY { return Eigen::internal::conditional_aligned_malloc<NeedsToAlign>(size); } \ + EIGEN_CATCH (...) { return 0; } \ + } + #define EIGEN_MAKE_ALIGNED_OPERATOR_NEW_IF(NeedsToAlign) \ + void *operator new(std::size_t size) { \ + return Eigen::internal::conditional_aligned_malloc<NeedsToAlign>(size); \ + } \ + void *operator new[](std::size_t size) { \ + return Eigen::internal::conditional_aligned_malloc<NeedsToAlign>(size); \ + } \ + void operator delete(void * ptr) EIGEN_NO_THROW { Eigen::internal::conditional_aligned_free<NeedsToAlign>(ptr); } \ + void operator delete[](void * ptr) EIGEN_NO_THROW { Eigen::internal::conditional_aligned_free<NeedsToAlign>(ptr); } \ + void operator delete(void * ptr, std::size_t /* sz */) EIGEN_NO_THROW { Eigen::internal::conditional_aligned_free<NeedsToAlign>(ptr); } \ + void operator delete[](void * ptr, std::size_t /* sz */) EIGEN_NO_THROW { Eigen::internal::conditional_aligned_free<NeedsToAlign>(ptr); } \ + /* in-place new and delete. since (at least afaik) there is no actual */ \ + /* memory allocated we can safely let the default implementation handle */ \ + /* this particular case. */ \ + static void *operator new(std::size_t size, void *ptr) { return ::operator new(size,ptr); } \ + static void *operator new[](std::size_t size, void* ptr) { return ::operator new[](size,ptr); } \ + void operator delete(void * memory, void *ptr) EIGEN_NO_THROW { return ::operator delete(memory,ptr); } \ + void operator delete[](void * memory, void *ptr) EIGEN_NO_THROW { return ::operator delete[](memory,ptr); } \ + /* nothrow-new (returns zero instead of std::bad_alloc) */ \ + EIGEN_MAKE_ALIGNED_OPERATOR_NEW_NOTHROW(NeedsToAlign) \ + void operator delete(void *ptr, const std::nothrow_t&) EIGEN_NO_THROW { \ + Eigen::internal::conditional_aligned_free<NeedsToAlign>(ptr); \ + } \ + typedef void eigen_aligned_operator_new_marker_type; +#else + #define EIGEN_MAKE_ALIGNED_OPERATOR_NEW_IF(NeedsToAlign) +#endif + +#define EIGEN_MAKE_ALIGNED_OPERATOR_NEW EIGEN_MAKE_ALIGNED_OPERATOR_NEW_IF(true) +#define EIGEN_MAKE_ALIGNED_OPERATOR_NEW_IF_VECTORIZABLE_FIXED_SIZE(Scalar,Size) \ + EIGEN_MAKE_ALIGNED_OPERATOR_NEW_IF(bool(((Size)!=Eigen::Dynamic) && ((sizeof(Scalar)*(Size))%EIGEN_MAX_ALIGN_BYTES==0))) + +/****************************************************************************/ + +/** \class aligned_allocator +* \ingroup Core_Module +* +* \brief STL compatible allocator to use with with 16 byte aligned types +* +* Example: +* \code +* // Matrix4f requires 16 bytes alignment: +* std::map< int, Matrix4f, std::less<int>, +* aligned_allocator<std::pair<const int, Matrix4f> > > my_map_mat4; +* // Vector3f does not require 16 bytes alignment, no need to use Eigen's allocator: +* std::map< int, Vector3f > my_map_vec3; +* \endcode +* +* \sa \blank \ref TopicStlContainers. +*/ +template<class T> +class aligned_allocator : public std::allocator<T> +{ +public: + typedef std::size_t size_type; + typedef std::ptrdiff_t difference_type; + typedef T* pointer; + typedef const T* const_pointer; + typedef T& reference; + typedef const T& const_reference; + typedef T value_type; + + template<class U> + struct rebind + { + typedef aligned_allocator<U> other; + }; + + aligned_allocator() : std::allocator<T>() {} + + aligned_allocator(const aligned_allocator& other) : std::allocator<T>(other) {} + + template<class U> + aligned_allocator(const aligned_allocator<U>& other) : std::allocator<T>(other) {} + + ~aligned_allocator() {} + + pointer allocate(size_type num, const void* /*hint*/ = 0) + { + internal::check_size_for_overflow<T>(num); + return static_cast<pointer>( internal::aligned_malloc(num * sizeof(T)) ); + } + + void deallocate(pointer p, size_type /*num*/) + { + internal::aligned_free(p); + } +}; + +//---------- Cache sizes ---------- + +#if !defined(EIGEN_NO_CPUID) +# if EIGEN_COMP_GNUC && EIGEN_ARCH_i386_OR_x86_64 +# if defined(__PIC__) && EIGEN_ARCH_i386 + // Case for x86 with PIC +# define EIGEN_CPUID(abcd,func,id) \ + __asm__ __volatile__ ("xchgl %%ebx, %k1;cpuid; xchgl %%ebx,%k1": "=a" (abcd[0]), "=&r" (abcd[1]), "=c" (abcd[2]), "=d" (abcd[3]) : "a" (func), "c" (id)); +# elif defined(__PIC__) && EIGEN_ARCH_x86_64 + // Case for x64 with PIC. In theory this is only a problem with recent gcc and with medium or large code model, not with the default small code model. + // However, we cannot detect which code model is used, and the xchg overhead is negligible anyway. +# define EIGEN_CPUID(abcd,func,id) \ + __asm__ __volatile__ ("xchg{q}\t{%%}rbx, %q1; cpuid; xchg{q}\t{%%}rbx, %q1": "=a" (abcd[0]), "=&r" (abcd[1]), "=c" (abcd[2]), "=d" (abcd[3]) : "0" (func), "2" (id)); +# else + // Case for x86_64 or x86 w/o PIC +# define EIGEN_CPUID(abcd,func,id) \ + __asm__ __volatile__ ("cpuid": "=a" (abcd[0]), "=b" (abcd[1]), "=c" (abcd[2]), "=d" (abcd[3]) : "0" (func), "2" (id) ); +# endif +# elif EIGEN_COMP_MSVC +# if (EIGEN_COMP_MSVC > 1500) && EIGEN_ARCH_i386_OR_x86_64 +# define EIGEN_CPUID(abcd,func,id) __cpuidex((int*)abcd,func,id) +# endif +# endif +#endif + +namespace internal { + +#ifdef EIGEN_CPUID + +inline bool cpuid_is_vendor(int abcd[4], const int vendor[3]) +{ + return abcd[1]==vendor[0] && abcd[3]==vendor[1] && abcd[2]==vendor[2]; +} + +inline void queryCacheSizes_intel_direct(int& l1, int& l2, int& l3) +{ + int abcd[4]; + l1 = l2 = l3 = 0; + int cache_id = 0; + int cache_type = 0; + do { + abcd[0] = abcd[1] = abcd[2] = abcd[3] = 0; + EIGEN_CPUID(abcd,0x4,cache_id); + cache_type = (abcd[0] & 0x0F) >> 0; + if(cache_type==1||cache_type==3) // data or unified cache + { + int cache_level = (abcd[0] & 0xE0) >> 5; // A[7:5] + int ways = (abcd[1] & 0xFFC00000) >> 22; // B[31:22] + int partitions = (abcd[1] & 0x003FF000) >> 12; // B[21:12] + int line_size = (abcd[1] & 0x00000FFF) >> 0; // B[11:0] + int sets = (abcd[2]); // C[31:0] + + int cache_size = (ways+1) * (partitions+1) * (line_size+1) * (sets+1); + + switch(cache_level) + { + case 1: l1 = cache_size; break; + case 2: l2 = cache_size; break; + case 3: l3 = cache_size; break; + default: break; + } + } + cache_id++; + } while(cache_type>0 && cache_id<16); +} + +inline void queryCacheSizes_intel_codes(int& l1, int& l2, int& l3) +{ + int abcd[4]; + abcd[0] = abcd[1] = abcd[2] = abcd[3] = 0; + l1 = l2 = l3 = 0; + EIGEN_CPUID(abcd,0x00000002,0); + unsigned char * bytes = reinterpret_cast<unsigned char *>(abcd)+2; + bool check_for_p2_core2 = false; + for(int i=0; i<14; ++i) + { + switch(bytes[i]) + { + case 0x0A: l1 = 8; break; // 0Ah data L1 cache, 8 KB, 2 ways, 32 byte lines + case 0x0C: l1 = 16; break; // 0Ch data L1 cache, 16 KB, 4 ways, 32 byte lines + case 0x0E: l1 = 24; break; // 0Eh data L1 cache, 24 KB, 6 ways, 64 byte lines + case 0x10: l1 = 16; break; // 10h data L1 cache, 16 KB, 4 ways, 32 byte lines (IA-64) + case 0x15: l1 = 16; break; // 15h code L1 cache, 16 KB, 4 ways, 32 byte lines (IA-64) + case 0x2C: l1 = 32; break; // 2Ch data L1 cache, 32 KB, 8 ways, 64 byte lines + case 0x30: l1 = 32; break; // 30h code L1 cache, 32 KB, 8 ways, 64 byte lines + case 0x60: l1 = 16; break; // 60h data L1 cache, 16 KB, 8 ways, 64 byte lines, sectored + case 0x66: l1 = 8; break; // 66h data L1 cache, 8 KB, 4 ways, 64 byte lines, sectored + case 0x67: l1 = 16; break; // 67h data L1 cache, 16 KB, 4 ways, 64 byte lines, sectored + case 0x68: l1 = 32; break; // 68h data L1 cache, 32 KB, 4 ways, 64 byte lines, sectored + case 0x1A: l2 = 96; break; // code and data L2 cache, 96 KB, 6 ways, 64 byte lines (IA-64) + case 0x22: l3 = 512; break; // code and data L3 cache, 512 KB, 4 ways (!), 64 byte lines, dual-sectored + case 0x23: l3 = 1024; break; // code and data L3 cache, 1024 KB, 8 ways, 64 byte lines, dual-sectored + case 0x25: l3 = 2048; break; // code and data L3 cache, 2048 KB, 8 ways, 64 byte lines, dual-sectored + case 0x29: l3 = 4096; break; // code and data L3 cache, 4096 KB, 8 ways, 64 byte lines, dual-sectored + case 0x39: l2 = 128; break; // code and data L2 cache, 128 KB, 4 ways, 64 byte lines, sectored + case 0x3A: l2 = 192; break; // code and data L2 cache, 192 KB, 6 ways, 64 byte lines, sectored + case 0x3B: l2 = 128; break; // code and data L2 cache, 128 KB, 2 ways, 64 byte lines, sectored + case 0x3C: l2 = 256; break; // code and data L2 cache, 256 KB, 4 ways, 64 byte lines, sectored + case 0x3D: l2 = 384; break; // code and data L2 cache, 384 KB, 6 ways, 64 byte lines, sectored + case 0x3E: l2 = 512; break; // code and data L2 cache, 512 KB, 4 ways, 64 byte lines, sectored + case 0x40: l2 = 0; break; // no integrated L2 cache (P6 core) or L3 cache (P4 core) + case 0x41: l2 = 128; break; // code and data L2 cache, 128 KB, 4 ways, 32 byte lines + case 0x42: l2 = 256; break; // code and data L2 cache, 256 KB, 4 ways, 32 byte lines + case 0x43: l2 = 512; break; // code and data L2 cache, 512 KB, 4 ways, 32 byte lines + case 0x44: l2 = 1024; break; // code and data L2 cache, 1024 KB, 4 ways, 32 byte lines + case 0x45: l2 = 2048; break; // code and data L2 cache, 2048 KB, 4 ways, 32 byte lines + case 0x46: l3 = 4096; break; // code and data L3 cache, 4096 KB, 4 ways, 64 byte lines + case 0x47: l3 = 8192; break; // code and data L3 cache, 8192 KB, 8 ways, 64 byte lines + case 0x48: l2 = 3072; break; // code and data L2 cache, 3072 KB, 12 ways, 64 byte lines + case 0x49: if(l2!=0) l3 = 4096; else {check_for_p2_core2=true; l3 = l2 = 4096;} break;// code and data L3 cache, 4096 KB, 16 ways, 64 byte lines (P4) or L2 for core2 + case 0x4A: l3 = 6144; break; // code and data L3 cache, 6144 KB, 12 ways, 64 byte lines + case 0x4B: l3 = 8192; break; // code and data L3 cache, 8192 KB, 16 ways, 64 byte lines + case 0x4C: l3 = 12288; break; // code and data L3 cache, 12288 KB, 12 ways, 64 byte lines + case 0x4D: l3 = 16384; break; // code and data L3 cache, 16384 KB, 16 ways, 64 byte lines + case 0x4E: l2 = 6144; break; // code and data L2 cache, 6144 KB, 24 ways, 64 byte lines + case 0x78: l2 = 1024; break; // code and data L2 cache, 1024 KB, 4 ways, 64 byte lines + case 0x79: l2 = 128; break; // code and data L2 cache, 128 KB, 8 ways, 64 byte lines, dual-sectored + case 0x7A: l2 = 256; break; // code and data L2 cache, 256 KB, 8 ways, 64 byte lines, dual-sectored + case 0x7B: l2 = 512; break; // code and data L2 cache, 512 KB, 8 ways, 64 byte lines, dual-sectored + case 0x7C: l2 = 1024; break; // code and data L2 cache, 1024 KB, 8 ways, 64 byte lines, dual-sectored + case 0x7D: l2 = 2048; break; // code and data L2 cache, 2048 KB, 8 ways, 64 byte lines + case 0x7E: l2 = 256; break; // code and data L2 cache, 256 KB, 8 ways, 128 byte lines, sect. (IA-64) + case 0x7F: l2 = 512; break; // code and data L2 cache, 512 KB, 2 ways, 64 byte lines + case 0x80: l2 = 512; break; // code and data L2 cache, 512 KB, 8 ways, 64 byte lines + case 0x81: l2 = 128; break; // code and data L2 cache, 128 KB, 8 ways, 32 byte lines + case 0x82: l2 = 256; break; // code and data L2 cache, 256 KB, 8 ways, 32 byte lines + case 0x83: l2 = 512; break; // code and data L2 cache, 512 KB, 8 ways, 32 byte lines + case 0x84: l2 = 1024; break; // code and data L2 cache, 1024 KB, 8 ways, 32 byte lines + case 0x85: l2 = 2048; break; // code and data L2 cache, 2048 KB, 8 ways, 32 byte lines + case 0x86: l2 = 512; break; // code and data L2 cache, 512 KB, 4 ways, 64 byte lines + case 0x87: l2 = 1024; break; // code and data L2 cache, 1024 KB, 8 ways, 64 byte lines + case 0x88: l3 = 2048; break; // code and data L3 cache, 2048 KB, 4 ways, 64 byte lines (IA-64) + case 0x89: l3 = 4096; break; // code and data L3 cache, 4096 KB, 4 ways, 64 byte lines (IA-64) + case 0x8A: l3 = 8192; break; // code and data L3 cache, 8192 KB, 4 ways, 64 byte lines (IA-64) + case 0x8D: l3 = 3072; break; // code and data L3 cache, 3072 KB, 12 ways, 128 byte lines (IA-64) + + default: break; + } + } + if(check_for_p2_core2 && l2 == l3) + l3 = 0; + l1 *= 1024; + l2 *= 1024; + l3 *= 1024; +} + +inline void queryCacheSizes_intel(int& l1, int& l2, int& l3, int max_std_funcs) +{ + if(max_std_funcs>=4) + queryCacheSizes_intel_direct(l1,l2,l3); + else + queryCacheSizes_intel_codes(l1,l2,l3); +} + +inline void queryCacheSizes_amd(int& l1, int& l2, int& l3) +{ + int abcd[4]; + abcd[0] = abcd[1] = abcd[2] = abcd[3] = 0; + EIGEN_CPUID(abcd,0x80000005,0); + l1 = (abcd[2] >> 24) * 1024; // C[31:24] = L1 size in KB + abcd[0] = abcd[1] = abcd[2] = abcd[3] = 0; + EIGEN_CPUID(abcd,0x80000006,0); + l2 = (abcd[2] >> 16) * 1024; // C[31;16] = l2 cache size in KB + l3 = ((abcd[3] & 0xFFFC000) >> 18) * 512 * 1024; // D[31;18] = l3 cache size in 512KB +} +#endif + +/** \internal + * Queries and returns the cache sizes in Bytes of the L1, L2, and L3 data caches respectively */ +inline void queryCacheSizes(int& l1, int& l2, int& l3) +{ + #ifdef EIGEN_CPUID + int abcd[4]; + const int GenuineIntel[] = {0x756e6547, 0x49656e69, 0x6c65746e}; + const int AuthenticAMD[] = {0x68747541, 0x69746e65, 0x444d4163}; + const int AMDisbetter_[] = {0x69444d41, 0x74656273, 0x21726574}; // "AMDisbetter!" + + // identify the CPU vendor + EIGEN_CPUID(abcd,0x0,0); + int max_std_funcs = abcd[1]; + if(cpuid_is_vendor(abcd,GenuineIntel)) + queryCacheSizes_intel(l1,l2,l3,max_std_funcs); + else if(cpuid_is_vendor(abcd,AuthenticAMD) || cpuid_is_vendor(abcd,AMDisbetter_)) + queryCacheSizes_amd(l1,l2,l3); + else + // by default let's use Intel's API + queryCacheSizes_intel(l1,l2,l3,max_std_funcs); + + // here is the list of other vendors: +// ||cpuid_is_vendor(abcd,"VIA VIA VIA ") +// ||cpuid_is_vendor(abcd,"CyrixInstead") +// ||cpuid_is_vendor(abcd,"CentaurHauls") +// ||cpuid_is_vendor(abcd,"GenuineTMx86") +// ||cpuid_is_vendor(abcd,"TransmetaCPU") +// ||cpuid_is_vendor(abcd,"RiseRiseRise") +// ||cpuid_is_vendor(abcd,"Geode by NSC") +// ||cpuid_is_vendor(abcd,"SiS SiS SiS ") +// ||cpuid_is_vendor(abcd,"UMC UMC UMC ") +// ||cpuid_is_vendor(abcd,"NexGenDriven") + #else + l1 = l2 = l3 = -1; + #endif +} + +/** \internal + * \returns the size in Bytes of the L1 data cache */ +inline int queryL1CacheSize() +{ + int l1(-1), l2, l3; + queryCacheSizes(l1,l2,l3); + return l1; +} + +/** \internal + * \returns the size in Bytes of the L2 or L3 cache if this later is present */ +inline int queryTopLevelCacheSize() +{ + int l1, l2(-1), l3(-1); + queryCacheSizes(l1,l2,l3); + return (std::max)(l2,l3); +} + +} // end namespace internal + +} // end namespace Eigen + +#endif // EIGEN_MEMORY_H |