mirror of
https://gitlab.com/libeigen/eigen.git
synced 2024-12-15 07:10:37 +08:00
52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
// This file is part of Eigen, a lightweight C++ template library
|
|
// for linear algebra.
|
|
//
|
|
// Copyright (C) 2009 Benoit Jacob <jacob.benoit.1@gmail.com>
|
|
//
|
|
// 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/.
|
|
|
|
#include "main.h"
|
|
|
|
template<typename Scalar>
|
|
void test_first_aligned_helper(Scalar *array, int size)
|
|
{
|
|
const int packet_size = sizeof(Scalar) * internal::packet_traits<Scalar>::size;
|
|
VERIFY(((size_t(array) + sizeof(Scalar) * internal::first_aligned(array, size)) % packet_size) == 0);
|
|
}
|
|
|
|
template<typename Scalar>
|
|
void test_none_aligned_helper(Scalar *array, int size)
|
|
{
|
|
EIGEN_UNUSED_VARIABLE(array);
|
|
EIGEN_UNUSED_VARIABLE(size);
|
|
VERIFY(internal::packet_traits<Scalar>::size == 1 || internal::first_aligned(array, size) == size);
|
|
}
|
|
|
|
struct some_non_vectorizable_type { float x; };
|
|
|
|
void test_first_aligned()
|
|
{
|
|
EIGEN_ALIGN16 float array_float[100];
|
|
test_first_aligned_helper(array_float, 50);
|
|
test_first_aligned_helper(array_float+1, 50);
|
|
test_first_aligned_helper(array_float+2, 50);
|
|
test_first_aligned_helper(array_float+3, 50);
|
|
test_first_aligned_helper(array_float+4, 50);
|
|
test_first_aligned_helper(array_float+5, 50);
|
|
|
|
EIGEN_ALIGN16 double array_double[100];
|
|
test_first_aligned_helper(array_double, 50);
|
|
test_first_aligned_helper(array_double+1, 50);
|
|
test_first_aligned_helper(array_double+2, 50);
|
|
|
|
double *array_double_plus_4_bytes = (double*)(size_t(array_double)+4);
|
|
test_none_aligned_helper(array_double_plus_4_bytes, 50);
|
|
test_none_aligned_helper(array_double_plus_4_bytes+1, 50);
|
|
|
|
some_non_vectorizable_type array_nonvec[100];
|
|
test_first_aligned_helper(array_nonvec, 100);
|
|
test_none_aligned_helper(array_nonvec, 100);
|
|
}
|