Disabled external gits
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51
cs440-acg/ext/eigen/test/first_aligned.cpp
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51
cs440-acg/ext/eigen/test/first_aligned.cpp
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// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2009 Benoit Jacob <jacob.benoit.1@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#include "main.h"
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template<typename Scalar>
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void test_first_aligned_helper(Scalar *array, int size)
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{
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const int packet_size = sizeof(Scalar) * internal::packet_traits<Scalar>::size;
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VERIFY(((size_t(array) + sizeof(Scalar) * internal::first_default_aligned(array, size)) % packet_size) == 0);
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}
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template<typename Scalar>
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void test_none_aligned_helper(Scalar *array, int size)
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{
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EIGEN_UNUSED_VARIABLE(array);
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EIGEN_UNUSED_VARIABLE(size);
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VERIFY(internal::packet_traits<Scalar>::size == 1 || internal::first_default_aligned(array, size) == size);
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}
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struct some_non_vectorizable_type { float x; };
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void test_first_aligned()
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{
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EIGEN_ALIGN16 float array_float[100];
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test_first_aligned_helper(array_float, 50);
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test_first_aligned_helper(array_float+1, 50);
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test_first_aligned_helper(array_float+2, 50);
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test_first_aligned_helper(array_float+3, 50);
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test_first_aligned_helper(array_float+4, 50);
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test_first_aligned_helper(array_float+5, 50);
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EIGEN_ALIGN16 double array_double[100];
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test_first_aligned_helper(array_double, 50);
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test_first_aligned_helper(array_double+1, 50);
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test_first_aligned_helper(array_double+2, 50);
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double *array_double_plus_4_bytes = (double*)(internal::UIntPtr(array_double)+4);
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test_none_aligned_helper(array_double_plus_4_bytes, 50);
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test_none_aligned_helper(array_double_plus_4_bytes+1, 50);
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some_non_vectorizable_type array_nonvec[100];
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test_first_aligned_helper(array_nonvec, 100);
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test_none_aligned_helper(array_nonvec, 100);
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}
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