diff options
Diffstat (limited to 'extern/Eigen3/Eigen/src/Core/util/Memory.h')
| -rw-r--r-- | extern/Eigen3/Eigen/src/Core/util/Memory.h | 105 |
1 files changed, 61 insertions, 44 deletions
diff --git a/extern/Eigen3/Eigen/src/Core/util/Memory.h b/extern/Eigen3/Eigen/src/Core/util/Memory.h index 023716dc9e0..6e06ace44a0 100644 --- a/extern/Eigen3/Eigen/src/Core/util/Memory.h +++ b/extern/Eigen3/Eigen/src/Core/util/Memory.h @@ -7,24 +7,9 @@ // Copyright (C) 2010 Hauke Heibel <hauke.heibel@gmail.com> // Copyright (C) 2010 Thomas Capricelli <orzel@freehackers.org> // -// Eigen is free software; you can redistribute it and/or -// modify it under the terms of the GNU Lesser General Public -// License as published by the Free Software Foundation; either -// version 3 of the License, or (at your option) any later version. -// -// Alternatively, you can redistribute it and/or -// modify it under the terms of the GNU General Public License as -// published by the Free Software Foundation; either version 2 of -// the License, or (at your option) any later version. -// -// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY -// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS -// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public -// License and a copy of the GNU General Public License along with -// Eigen. If not, see <http://www.gnu.org/licenses/>. +// 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/. /***************************************************************************** @@ -80,6 +65,8 @@ #define EIGEN_HAS_MM_MALLOC 0 #endif +namespace Eigen { + namespace internal { inline void throw_std_bad_alloc() @@ -457,7 +444,7 @@ template<typename T, bool Align> inline void conditional_aligned_delete_auto(T * * There is also the variant first_aligned(const MatrixBase&) defined in DenseCoeffsBase.h. */ template<typename Scalar, typename Index> -inline static Index first_aligned(const Scalar* array, Index size) +static inline Index first_aligned(const Scalar* array, Index size) { typedef typename packet_traits<Scalar>::type Packet; enum { PacketSize = packet_traits<Scalar>::size, @@ -483,7 +470,26 @@ inline static Index first_aligned(const Scalar* array, Index size) } } -} // end namespace internal + +// 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> 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> { + static inline void run(const T* start, const T* end, T* target) + { memcpy(target, start, std::ptrdiff_t(end)-std::ptrdiff_t(start)); } +}; + +template<typename T> struct smart_copy_helper<T,false> { + static inline void run(const T* start, const T* end, T* target) + { std::copy(start, end, target); } +}; + /***************************************************************************** *** Implementation of runtime stack allocation (falling back to malloc) *** @@ -499,8 +505,6 @@ inline static Index first_aligned(const Scalar* array, Index size) #endif #endif -namespace internal { - // 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 @@ -531,14 +535,14 @@ template<typename T> class aligned_stack_memory_handler bool m_deallocate; }; -} +} // 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 nul, then the declared variable is simply an alias for BUFFER, and no allocation/deletion occurs. + * 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 * { @@ -619,7 +623,7 @@ template<typename T> class aligned_stack_memory_handler #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(((Size)!=Eigen::Dynamic) && ((sizeof(Scalar)*(Size))%16==0)) + EIGEN_MAKE_ALIGNED_OPERATOR_NEW_IF(bool(((Size)!=Eigen::Dynamic) && ((sizeof(Scalar)*(Size))%16==0))) /****************************************************************************/ @@ -667,24 +671,24 @@ public: return &value; } - aligned_allocator() throw() + aligned_allocator() { } - aligned_allocator( const aligned_allocator& ) throw() + aligned_allocator( const aligned_allocator& ) { } template<class U> - aligned_allocator( const aligned_allocator<U>& ) throw() + aligned_allocator( const aligned_allocator<U>& ) { } - ~aligned_allocator() throw() + ~aligned_allocator() { } - size_type max_size() const throw() + size_type max_size() const { return (std::numeric_limits<size_type>::max)(); } @@ -701,6 +705,15 @@ public: ::new( p ) T( value ); } + // Support for c++11 +#if (__cplusplus >= 201103L) + template<typename... Args> + void construct(pointer p, Args&&... args) + { + ::new(p) T(std::forward<Args>(args)...); + } +#endif + void destroy( pointer p ) { p->~T(); @@ -720,19 +733,21 @@ public: //---------- Cache sizes ---------- -#if defined(__GNUC__) && ( defined(__i386__) || defined(__x86_64__) ) -# if defined(__PIC__) && defined(__i386__) - // Case for x86 with PIC -# define EIGEN_CPUID(abcd,func,id) \ - __asm__ __volatile__ ("xchgl %%ebx, %%esi;cpuid; xchgl %%ebx,%%esi": "=a" (abcd[0]), "=S" (abcd[1]), "=c" (abcd[2]), "=d" (abcd[3]) : "a" (func), "c" (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]) : "a" (func), "c" (id) ); -# endif -#elif defined(_MSC_VER) -# if (_MSC_VER > 1500) -# define EIGEN_CPUID(abcd,func,id) __cpuidex((int*)abcd,func,id) +#if !defined(EIGEN_NO_CPUID) +# if defined(__GNUC__) && ( defined(__i386__) || defined(__x86_64__) ) +# if defined(__PIC__) && defined(__i386__) + // Case for x86 with PIC +# define EIGEN_CPUID(abcd,func,id) \ + __asm__ __volatile__ ("xchgl %%ebx, %%esi;cpuid; xchgl %%ebx,%%esi": "=a" (abcd[0]), "=S" (abcd[1]), "=c" (abcd[2]), "=d" (abcd[3]) : "a" (func), "c" (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]) : "a" (func), "c" (id) ); +# endif +# elif defined(_MSC_VER) +# if (_MSC_VER > 1500) +# define EIGEN_CPUID(abcd,func,id) __cpuidex((int*)abcd,func,id) +# endif # endif #endif @@ -742,7 +757,7 @@ namespace internal { inline bool cpuid_is_vendor(int abcd[4], const char* vendor) { - return abcd[1]==((int*)(vendor))[0] && abcd[3]==((int*)(vendor))[1] && abcd[2]==((int*)(vendor))[2]; + return abcd[1]==(reinterpret_cast<const int*>(vendor))[0] && abcd[3]==(reinterpret_cast<const int*>(vendor))[1] && abcd[2]==(reinterpret_cast<const int*>(vendor))[2]; } inline void queryCacheSizes_intel_direct(int& l1, int& l2, int& l3) @@ -932,4 +947,6 @@ inline int queryTopLevelCacheSize() } // end namespace internal +} // end namespace Eigen + #endif // EIGEN_MEMORY_H |