[Rcpp-commits] r3496 - pkg/RcppEigen/inst/include/unsupported/Eigen/src/MoreVectorization

[noreply at r-forge.r-project.org]

Author: dmbates
Date: 2012-03-08 20:17:46 +0100 (Thu, 08 Mar 2012)
New Revision: 3496

Removed:
   pkg/RcppEigen/inst/include/unsupported/Eigen/src/MoreVectorization/MathFunctions.h
Log:
Delete the unsupported/Eigen/src/MoreVectorization module which we don't need


Deleted: pkg/RcppEigen/inst/include/unsupported/Eigen/src/MoreVectorization/MathFunctions.h
===================================================================
--- pkg/RcppEigen/inst/include/unsupported/Eigen/src/MoreVectorization/MathFunctions.h	2012-03-08 18:51:10 UTC (rev 3495)
+++ pkg/RcppEigen/inst/include/unsupported/Eigen/src/MoreVectorization/MathFunctions.h	2012-03-08 19:17:46 UTC (rev 3496)
@@ -1,106 +0,0 @@
-// This file is part of Eigen, a lightweight C++ template library
-// for linear algebra.
-//
-// Copyright (C) 2009 Rohit Garg <rpg.314 at gmail.com>
-// Copyright (C) 2009 Benoit Jacob <jacob.benoit.1 at gmail.com>
-//
-// 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/>.
-
-#ifndef EIGEN_MOREVECTORIZATION_MATHFUNCTIONS_H
-#define EIGEN_MOREVECTORIZATION_MATHFUNCTIONS_H
-
-namespace internal {
-
-/** \internal \returns the arcsin of \a a (coeff-wise) */
-template<typename Packet> inline static Packet pasin(Packet a) { return std::asin(a); }
-
-#ifdef EIGEN_VECTORIZE_SSE
-
-template<> EIGEN_DONT_INLINE Packet4f pasin(Packet4f x)
-{
-  _EIGEN_DECLARE_CONST_Packet4f(half, 0.5);
-  _EIGEN_DECLARE_CONST_Packet4f(minus_half, -0.5);
-  _EIGEN_DECLARE_CONST_Packet4f(3half, 1.5);
-
-  _EIGEN_DECLARE_CONST_Packet4f_FROM_INT(sign_mask, 0x80000000);
-
-  _EIGEN_DECLARE_CONST_Packet4f(pi, 3.141592654);
-  _EIGEN_DECLARE_CONST_Packet4f(pi_over_2, 3.141592654*0.5);
-
-  _EIGEN_DECLARE_CONST_Packet4f(asin1, 4.2163199048E-2);
-  _EIGEN_DECLARE_CONST_Packet4f(asin2, 2.4181311049E-2);
-  _EIGEN_DECLARE_CONST_Packet4f(asin3, 4.5470025998E-2);
-  _EIGEN_DECLARE_CONST_Packet4f(asin4, 7.4953002686E-2);
-  _EIGEN_DECLARE_CONST_Packet4f(asin5, 1.6666752422E-1);
-
-  Packet4f a = pabs(x);//got the absolute value
-
-  Packet4f sign_bit= _mm_and_ps(x, p4f_sign_mask);//extracted the sign bit
-
-  Packet4f z1,z2;//will need them during computation    
-
-
-//will compute the two branches for asin
-//so first compare with half
-
-  Packet4f branch_mask= _mm_cmpgt_ps(a, p4f_half);//this is to select which branch to take
-//both will be taken, and finally results will be merged
-//the branch for values >0.5
-
-    {
-//the core series expansion 
-    z1=pmadd(p4f_minus_half,a,p4f_half);
-    Packet4f x1=psqrt(z1);
-    Packet4f s1=pmadd(p4f_asin1, z1, p4f_asin2);
-    Packet4f s2=pmadd(s1, z1, p4f_asin3);
-    Packet4f s3=pmadd(s2,z1, p4f_asin4);
-    Packet4f s4=pmadd(s3,z1, p4f_asin5);
-    Packet4f temp=pmul(s4,z1);//not really a madd but a mul by z so that the next term can be a madd
-    z1=pmadd(temp,x1,x1);
-    z1=padd(z1,z1);
-    z1=psub(p4f_pi_over_2,z1);
-    }
-
-    {
-//the core series expansion 
-    Packet4f x2=a;
-    z2=pmul(x2,x2);
-    Packet4f s1=pmadd(p4f_asin1, z2, p4f_asin2);
-    Packet4f s2=pmadd(s1, z2, p4f_asin3);
-    Packet4f s3=pmadd(s2,z2, p4f_asin4);
-    Packet4f s4=pmadd(s3,z2, p4f_asin5);
-    Packet4f temp=pmul(s4,z2);//not really a madd but a mul by z so that the next term can be a madd
-    z2=pmadd(temp,x2,x2);
-    }
-
-/* select the correct result from the two branch evaluations */
-  z1  = _mm_and_ps(branch_mask, z1);
-  z2  = _mm_andnot_ps(branch_mask, z2);
-  Packet4f z  = _mm_or_ps(z1,z2);
-
-/* update the sign */
-  return _mm_xor_ps(z, sign_bit);
-}
-
-} // end namespace internal
-
-#endif
-
-#endif // EIGEN_MOREVECTORIZATION_MATHFUNCTIONS_H