Vc
1.4.2
SIMD Vector Classes for C++
alignedbase.h
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/* This file is part of the Vc library. {{{
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Copyright © 2015 Matthias Kretz <kretz@kde.org>
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the names of contributing organizations nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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}}}*/
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#ifndef VC_COMMON_ALIGNEDBASE_H_
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#define VC_COMMON_ALIGNEDBASE_H_
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#include "types.h"
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#include "macros.h"
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namespace
Vc_VERSIONED_NAMESPACE
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{
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namespace
Detail
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{
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template
<
typename
T> constexpr T
max
(T a) {
return
a; }
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template
<
typename
T,
typename
... Ts> constexpr T
max
(T a, T b, Ts... rest)
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{
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return
a > b ?
max
(a, rest...) :
max
(b, rest...);
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}
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}
// namespace Detail
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namespace
Common
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{
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template
<std::
size_t
> Vc_INTRINSIC
void
*aligned_malloc(std::size_t);
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Vc_ALWAYS_INLINE
void
free
(
void
*);
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}
// namespace Common
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template
<std::
size_t
Alignment>
struct
alignas(Alignment)
AlignedBase
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{
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Vc_FREE_STORE_OPERATORS_ALIGNED(Alignment);
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};
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using
VectorAlignedBase
=
AlignedBase
<
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Detail::max
(
alignof
(
Vector<float>
),
alignof
(
Vector<double>
),
alignof
(
Vector<ullong>
),
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alignof
(
Vector<llong>
),
alignof
(
Vector<ulong>
),
alignof
(
Vector<long>
),
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alignof
(
Vector<uint>
),
alignof
(
Vector<int>
),
alignof
(
Vector<ushort>
),
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alignof
(
Vector<short>
),
alignof
(
Vector<uchar>
),
alignof
(
Vector<schar>
))>;
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template
<
typename
V>
using
VectorAlignedBaseT
=
AlignedBase
<
alignof
(V)>;
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using
MemoryAlignedBase
=
AlignedBase
<
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Detail::max
(
Vector<float>::MemoryAlignment
,
Vector<double>::MemoryAlignment
,
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Vector<ullong>::MemoryAlignment
,
Vector<llong>::MemoryAlignment
,
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Vector<ulong>::MemoryAlignment
,
Vector<long>::MemoryAlignment
,
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Vector<uint>::MemoryAlignment
,
Vector<int>::MemoryAlignment
,
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Vector<ushort>::MemoryAlignment
,
Vector<short>::MemoryAlignment
,
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Vector<uchar>::MemoryAlignment
,
Vector<schar>::MemoryAlignment
)>;
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template
<
typename
V>
using
MemoryAlignedBaseT
=
AlignedBase<V::MemoryAlignment>
;
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}
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#endif // VC_COMMON_ALIGNEDBASE_H_
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// vim: foldmethod=marker
Vc::free
void free(T *p)
Frees memory that was allocated with Vc::malloc.
Definition:
malloc.h:163
Vc::Vector
Definition:
fwddecl.h:53
Vc::max
fixed_size_simd< T, N > max(const SimdArray< T, N, V, M > &x, const SimdArray< T, N, V, M > &y)
Applies the std:: max function component-wise and concurrently.
Definition:
simdarray.h:1855
Vc::AlignedBase
Definition:
alignedbase.h:67
Vc
common
alignedbase.h
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