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//---------------------------------------------------------------------------//
// Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
//
// Distributed under the Boost Software License, Version 1.0
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
//
// See http://boostorg.github.com/compute for more information.
//---------------------------------------------------------------------------//
#ifndef BOOST_COMPUTE_FUNCTIONAL_DETAIL_NVIDIA_BALLOT_HPP
#define BOOST_COMPUTE_FUNCTIONAL_DETAIL_NVIDIA_BALLOT_HPP
#include <boost/compute/function.hpp>
#include <boost/compute/types/fundamental.hpp>
namespace boost {
namespace compute {
namespace detail {
template<class T>
class nvidia_ballot : public function<uint_(T)>
{
public:
nvidia_ballot()
: function<uint_(T)>("nvidia_ballot")
{
this->set_source(
"inline uint nvidia_ballot(const uint x)\n"
"{\n"
" uint result;\n"
" asm volatile(\n"
" \"setp.ne.u32 %%p1, %1, 0;\"\n"
" \"vote.ballot.b32 %0, %%p1;\"\n"
" : \"=r\"(result)\n"
" : \"r\"(x)\n"
" );\n"
" return result;\n"
"}\n"
);
}
};
} // end detail namespace
} // end compute namespace
} // end boost namespace
#endif // BOOST_COMPUTE_FUNCTIONAL_DETAIL_NVIDIA_BALLOT_HPP
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