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/**
* @file v3dmath_test.cpp
* @author Vir
* @date 2011-12
* @brief v3dmath test cases.
*
* $LicenseInfo:firstyear=2011&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2011, Linden Research, Inc.
*
* This library 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;
* version 2.1 of the License only.
*
* This library 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
// Tests related to allocating objects with alignment constraints, particularly for SSE support.
#include "linden_common.h"
#include "../test/lltut.h"
#include "../llmath.h"
#include "../llsimdmath.h"
#include "../llvector4a.h"
namespace tut
{
#define is_aligned(ptr,alignment) ((reinterpret_cast<uintptr_t>(ptr))%(alignment)==0)
struct alignment_test {};
typedef test_group<alignment_test> alignment_test_t;
typedef alignment_test_t::object alignment_test_object_t;
tut::alignment_test_t tut_alignment_test("LLAlignment");
LL_ALIGN_PREFIX(16)
class MyVector4a
{
LLQuad mQ;
} LL_ALIGN_POSTFIX(16);
LL_ALIGN_PREFIX(64)
class MyBigBlob
{
public:
~MyBigBlob() {}
private:
LLQuad mQ[4];
} LL_ALIGN_POSTFIX(64);
// In-place allocation of objects and arrays.
template<> template<>
void alignment_test_object_t::test<1>()
{
ensure("LLAlignment reality is broken: ", (1==1));
MyVector4a vec1;
ensure("LLAlignment vec1 unaligned", is_aligned(&vec1,16));
MyBigBlob bb1;
ensure("LLAlignment bb1 unaligned", is_aligned(&bb1,64));
MyVector4a veca[12];
ensure("LLAlignment veca unaligned", is_aligned(veca,16));
MyBigBlob bba[12];
ensure("LLAlignment bba unaligned", is_aligned(bba,64));
}
// Heap allocation of objects and arrays.
template<> template<>
void alignment_test_object_t::test<2>()
{
const int ARR_SIZE = 7;
for(int i=0; i<ARR_SIZE; i++)
{
MyVector4a *vecp = new MyVector4a;
ensure("LLAlignment vecp unaligned", is_aligned(vecp,16));
delete vecp;
}
MyVector4a *veca = new MyVector4a[ARR_SIZE];
for(int i=0; i<ARR_SIZE; i++)
{
ensure("LLAlignment veca unaligned", is_aligned(&veca[i],16));
}
for(int i=0; i<ARR_SIZE; i++)
{
void *aligned_addr = _aligned_malloc(sizeof(MyBigBlob),64);
MyBigBlob *bbp = new(aligned_addr) MyBigBlob;
ensure("LLAlignment bbp unaligned", is_aligned(bbp,64));
bbp->~MyBigBlob();
_aligned_free(aligned_addr);
}
ensure("LLAlignment big blob size",sizeof(MyBigBlob)==64);
void *aligned_addr = _aligned_malloc(ARR_SIZE*sizeof(MyBigBlob),64);
MyBigBlob *bba = new(aligned_addr) MyBigBlob[ARR_SIZE];
std::cout << "aligned_addr " << aligned_addr << std::endl;
std::cout << "bba " << bba << std::endl;
for(int i=0; i<ARR_SIZE; i++)
{
std::cout << "bba test " << i << std::endl;
ensure("LLAlignment bba unaligned", is_aligned(&bba[i],64));
}
for(int i=0; i<ARR_SIZE; i++)
{
bba[i].~MyBigBlob();
}
_aligned_free(aligned_addr);
}
}
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