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// This file is part of Eigen, a lightweight C++ template library
// for linear algebra. Eigen itself is part of the KDE project.
//
// Copyright (C) 2008 Gael Guennebaud <g.gael@free.fr>
//
// 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/>.
#include "main.h"
#if EIGEN_ARCH_WANTS_ALIGNMENT
#define ALIGNMENT 16
#else
#define ALIGNMENT 1
#endif
void check_handmade_aligned_malloc()
{
for(int i = 1; i < 1000; i++)
{
char *p = (char*)ei_handmade_aligned_malloc(i);
VERIFY(size_t(p)%ALIGNMENT==0);
// if the buffer is wrongly allocated this will give a bad write --> check with valgrind
for(int j = 0; j < i; j++) p[j]=0;
ei_handmade_aligned_free(p);
}
}
void check_aligned_malloc()
{
for(int i = 1; i < 1000; i++)
{
char *p = (char*)ei_aligned_malloc(i);
VERIFY(size_t(p)%ALIGNMENT==0);
// if the buffer is wrongly allocated this will give a bad write --> check with valgrind
for(int j = 0; j < i; j++) p[j]=0;
ei_aligned_free(p);
}
}
void check_aligned_new()
{
for(int i = 1; i < 1000; i++)
{
float *p = ei_aligned_new<float>(i);
VERIFY(size_t(p)%ALIGNMENT==0);
// if the buffer is wrongly allocated this will give a bad write --> check with valgrind
for(int j = 0; j < i; j++) p[j]=0;
ei_aligned_delete(p,i);
}
}
void check_aligned_stack_alloc()
{
for(int i = 1; i < 1000; i++)
{
float *p = ei_aligned_stack_new(float,i);
VERIFY(size_t(p)%ALIGNMENT==0);
// if the buffer is wrongly allocated this will give a bad write --> check with valgrind
for(int j = 0; j < i; j++) p[j]=0;
ei_aligned_stack_delete(float,p,i);
}
}
// test compilation with both a struct and a class...
struct MyStruct
{
EIGEN_MAKE_ALIGNED_OPERATOR_NEW
char dummychar;
Vector4f avec;
};
class MyClassA
{
public:
EIGEN_MAKE_ALIGNED_OPERATOR_NEW
char dummychar;
Vector4f avec;
};
template<typename T> void check_dynaligned()
{
T* obj = new T;
VERIFY(size_t(obj)%ALIGNMENT==0);
delete obj;
}
void test_dynalloc()
{
// low level dynamic memory allocation
CALL_SUBTEST(check_handmade_aligned_malloc());
CALL_SUBTEST(check_aligned_malloc());
CALL_SUBTEST(check_aligned_new());
CALL_SUBTEST(check_aligned_stack_alloc());
for (int i=0; i<g_repeat*100; ++i)
{
CALL_SUBTEST( check_dynaligned<Vector4f>() );
CALL_SUBTEST( check_dynaligned<Vector2d>() );
CALL_SUBTEST( check_dynaligned<Matrix4f>() );
CALL_SUBTEST( check_dynaligned<Vector4d>() );
CALL_SUBTEST( check_dynaligned<Vector4i>() );
}
// check static allocation, who knows ?
{
MyStruct foo0; VERIFY(size_t(foo0.avec.data())%ALIGNMENT==0);
MyClassA fooA; VERIFY(size_t(fooA.avec.data())%ALIGNMENT==0);
}
// dynamic allocation, single object
for (int i=0; i<g_repeat*100; ++i)
{
MyStruct *foo0 = new MyStruct(); VERIFY(size_t(foo0->avec.data())%ALIGNMENT==0);
MyClassA *fooA = new MyClassA(); VERIFY(size_t(fooA->avec.data())%ALIGNMENT==0);
delete foo0;
delete fooA;
}
// dynamic allocation, array
const int N = 10;
for (int i=0; i<g_repeat*100; ++i)
{
MyStruct *foo0 = new MyStruct[N]; VERIFY(size_t(foo0->avec.data())%ALIGNMENT==0);
MyClassA *fooA = new MyClassA[N]; VERIFY(size_t(fooA->avec.data())%ALIGNMENT==0);
delete[] foo0;
delete[] fooA;
}
}
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