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Diffstat (limited to 'boost/compute/functional/detail/nvidia_ballot.hpp')
-rw-r--r-- | boost/compute/functional/detail/nvidia_ballot.hpp | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/boost/compute/functional/detail/nvidia_ballot.hpp b/boost/compute/functional/detail/nvidia_ballot.hpp new file mode 100644 index 0000000000..cf66828f1c --- /dev/null +++ b/boost/compute/functional/detail/nvidia_ballot.hpp @@ -0,0 +1,48 @@ +//---------------------------------------------------------------------------// +// 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 |