equal.cpp

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2015-2022 Advanced Micro Devices, Inc. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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#include <migraphx/gpu/device/equal.hpp>
#include <migraphx/gpu/device/nary.hpp>
#include <migraphx/type_traits.hpp>

namespace migraphx {
inline namespace MIGRAPHX_INLINE_NS {
namespace gpu {
namespace device {

template <class T>
__device__ bool equal(T x, T y)
{
    auto eps  = std::numeric_limits<T>::epsilon();
    auto diff = x - y;
    return (diff <= eps) and (diff >= -eps);
}

void equal(hipStream_t stream, const argument& result, const argument& arg1, const argument& arg2)
{
    nary(stream, result, arg1, arg2)([](auto x, auto y) __device__ { return equal(x, y); });
}

} // namespace device
} // namespace gpu
} // namespace MIGRAPHX_INLINE_NS
} // namespace migraphx