Imported Upstream version 1.61.0

Change-Id: I96a1f878d1e6164f01e9aadd5147f38fca448d90
Signed-off-by: DongHun Kwak <dh0128.kwak@samsung.com>

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