1c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath// This file is part of Eigen, a lightweight C++ template library 2c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath// for linear algebra. 3c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath// 4c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath// Copyright (C) 2009 Benoit Jacob <jacob.benoit.1@gmail.com> 5c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath// 6c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath// This Source Code Form is subject to the terms of the Mozilla 7c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath// Public License v. 2.0. If a copy of the MPL was not distributed 8c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath// with this file, You can obtain one at http://mozilla.org/MPL/2.0/. 9c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath 10c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath#include "main.h" 11c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath 12c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamathtemplate<typename Scalar> 13c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamathvoid test_first_aligned_helper(Scalar *array, int size) 14c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath{ 15c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath const int packet_size = sizeof(Scalar) * internal::packet_traits<Scalar>::size; 16c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath VERIFY(((size_t(array) + sizeof(Scalar) * internal::first_aligned(array, size)) % packet_size) == 0); 17c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath} 18c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath 19c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamathtemplate<typename Scalar> 20c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamathvoid test_none_aligned_helper(Scalar *array, int size) 21c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath{ 22c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath EIGEN_UNUSED_VARIABLE(array); 23c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath EIGEN_UNUSED_VARIABLE(size); 24c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath VERIFY(internal::packet_traits<Scalar>::size == 1 || internal::first_aligned(array, size) == size); 25c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath} 26c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath 27c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamathstruct some_non_vectorizable_type { float x; }; 28c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath 29c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamathvoid test_first_aligned() 30c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath{ 31c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath EIGEN_ALIGN16 float array_float[100]; 32c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath test_first_aligned_helper(array_float, 50); 33c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath test_first_aligned_helper(array_float+1, 50); 34c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath test_first_aligned_helper(array_float+2, 50); 35c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath test_first_aligned_helper(array_float+3, 50); 36c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath test_first_aligned_helper(array_float+4, 50); 37c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath test_first_aligned_helper(array_float+5, 50); 38c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath 39c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath EIGEN_ALIGN16 double array_double[100]; 40c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath test_first_aligned_helper(array_double, 50); 41c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath test_first_aligned_helper(array_double+1, 50); 42c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath test_first_aligned_helper(array_double+2, 50); 43c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath 44c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath double *array_double_plus_4_bytes = (double*)(size_t(array_double)+4); 45c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath test_none_aligned_helper(array_double_plus_4_bytes, 50); 46c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath test_none_aligned_helper(array_double_plus_4_bytes+1, 50); 47c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath 48c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath some_non_vectorizable_type array_nonvec[100]; 49c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath test_first_aligned_helper(array_nonvec, 100); 50c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath test_none_aligned_helper(array_nonvec, 100); 51c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath} 52