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Diffstat (limited to 'include/gudhi_patches/CGAL/NewKernel_d/Vector/sse2.h')
| -rw-r--r-- | include/gudhi_patches/CGAL/NewKernel_d/Vector/sse2.h | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/include/gudhi_patches/CGAL/NewKernel_d/Vector/sse2.h b/include/gudhi_patches/CGAL/NewKernel_d/Vector/sse2.h deleted file mode 100644 index 2a75385c..00000000 --- a/include/gudhi_patches/CGAL/NewKernel_d/Vector/sse2.h +++ /dev/null @@ -1,145 +0,0 @@ -// Copyright (c) 2014 -// INRIA Saclay-Ile de France (France) -// -// This file is part of CGAL (www.cgal.org); 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. -// -// Licensees holding a valid commercial license may use this file in -// accordance with the commercial license agreement provided with the software. -// -// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE -// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. -// -// $URL$ -// $Id$ -// -// Author(s) : Marc Glisse - -#ifndef CGAL_VECTOR_SSE2_H -#define CGAL_VECTOR_SSE2_H - -// Check what needs adapting for clang, intel and microsoft -#if !defined __SSE2__ || (__GNUC__ * 100 + __GNUC_MINOR__ < 408) -#error Requires SSE2 and gcc 4.8+ -#endif -#include <x86intrin.h> // FIXME: other platforms call it differently - -#include <CGAL/NewKernel_d/functor_tags.h> -#include <CGAL/Dimension.h> -#include <CGAL/enum.h> // CGAL::Sign -#include <CGAL/number_utils.h> // CGAL::sign - - - -namespace CGAL { - - struct Sse_vector_2 { - typedef double NT; - typedef Dimension_tag<2> Dimension; - typedef Dimension_tag<2> Max_dimension; - // No Rebind_dimension, this is a building block - template<class,bool=true> struct Property : boost::false_type {}; - template<bool b> struct Property<Has_vector_plus_minus_tag,b> - : boost::true_type {}; - /* MAYBE? - template<bool b> struct Property<Has_vector_scalar_ops_tag,b> - : boost::true_type {}; - */ - template<bool b> struct Property<Has_determinant_of_vectors_tag,b> - : boost::true_type {}; - template<bool b> struct Property<Has_dot_product_tag,b> - : boost::true_type {}; - - typedef __m128d Vector; - struct Construct_vector { - struct Dimension { - // Initialize with NaN? - Vector operator()(unsigned d) const { - CGAL_assertion(d==2); - return Vector(); - } - }; - - struct Iterator { - template<typename Iter> - Vector operator()(unsigned d,Iter const& f,Iter const& e) const { - CGAL_assertion(d==2); - double x0 = *f; - double x1 = *++f; - CGAL_assertion(++f==e); - Vector a = { x0, x1 }; - return a; - } - }; - - struct Iterator_and_last { - template<typename Iter,typename T> - Vector operator()(unsigned d,Iter const& f,Iter const& e,double t) const { - CGAL_assertion(d==2); - Vector a = { *f, t }; - CGAL_assertion(++f==e); - return a; - } - }; - - struct Values { - Vector operator()(double a,double b) const { - Vector r = { a, b }; - return r; - } - }; - - struct Values_divide { - Vector operator()(double h,double a,double b) const { - // {a,b}/{h,h} is probably slower - Vector r = { a/h, b/h }; - return r; - } - }; - }; - - typedef double const* Vector_const_iterator; - static inline Vector_const_iterator vector_begin(Vector const&a){ - return (Vector_const_iterator)(&a); - } - static inline Vector_const_iterator vector_end(Vector const&a){ - return (Vector_const_iterator)(&a)+2; - } - static inline unsigned size_of_vector(Vector){ - return 2; - } - public: - - static double determinant_of_vectors(Vector a, Vector b) { - __m128d c = _mm_shuffle_pd (b, b, 1); // b1, b0 - __m128d d = a * c; // a0*b1, a1*b0 -#ifdef __SSE3__ - __m128d e = _mm_hsub_pd (d, d); - return e[0]; -#else - return d[0]-d[1]; -#endif - } - static CGAL::Sign sign_of_determinant_of_vectors(Vector a, Vector b) { - return CGAL::sign(determinant_of_vectors(a,b)); - } - - static double dot_product(Vector a,Vector b){ -#ifdef __SSE4_1__ - return _mm_dp_pd (a, b, 1+16+32)[0]; -#else - __m128d p = a * b; -#if defined __SSE3__ - __m128d s = _mm_hadd_pd (p, p); - return s[0]; -#else - return p[0]+p[1]; -#endif -#endif - }; - }; - -} -#endif |