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// neon integer vector helper class
//
// Copyright (C) 2011 Tim Blechmann
//
// This program is free software; 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.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; see the file COPYING. If not, write to
// the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
#ifndef VEC_INT_NEON_HPP
#define VEC_INT_NEON_HPP
#include <arm_neon.h>
namespace nova {
namespace detail {
struct int_vec_neon
{
uint32x4_t data_;
explicit int_vec_neon(int arg):
data_(vdupq_n_u32(arg))
{}
int_vec_neon(float32x4_t arg):
data_(vreinterpretq_u32_f32(arg))
{}
int_vec_neon(uint32x4_t arg):
data_(arg)
{}
int_vec_neon(int_vec_neon const & arg):
data_(arg.data_)
{}
int_vec_neon(void)
{}
operator uint32x4_t (void) const
{
return data_;
}
friend int_vec_neon operator+(int_vec_neon const & lhs, int_vec_neon const & rhs)
{
return vaddq_u32(lhs.data_, rhs.data_);
}
friend int_vec_neon operator-(int_vec_neon const & lhs, int_vec_neon const & rhs)
{
return vsubq_u32(lhs.data_, rhs.data_);
}
#define RELATIONAL_MASK_OPERATOR(op, opcode) \
friend inline int_vec_neon mask_##op(int_vec_neon const & lhs, int_vec_neon const & rhs) \
{ \
return opcode(lhs.data_, rhs.data_); \
}
RELATIONAL_MASK_OPERATOR(lt, vcltq_u32)
RELATIONAL_MASK_OPERATOR(gt, vcgtq_u32)
RELATIONAL_MASK_OPERATOR(eq, vceqq_u32)
#undef RELATIONAL_MASK_OPERATOR
friend int_vec_neon operator&(int_vec_neon const & lhs, int_vec_neon const & rhs)
{
return vandq_u32(lhs.data_, rhs.data_);
}
friend inline int_vec_neon andnot(int_vec_neon const & lhs, int_vec_neon const & rhs)
{
return vandq_u32(lhs.data_, vmvnq_u32(rhs.data_));
}
// shift in zeros
friend inline int_vec_neon slli(int_vec_neon const & arg, int count)
{
return vshlq_u32(arg.data_, vdupq_n_s32(count));
}
// shift in zeros
friend inline int_vec_neon srli(int_vec_neon const & arg, int count)
{
return vshlq_u32(arg.data_, vdupq_n_s32(-count));
}
inline float32x4_t convert_to_float(void) const
{
return vcvtq_f32_s32(vreinterpretq_s32_u32(data_));
}
};
}
}
#endif /* VEC_INT_NEON_HPP */
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