write_literals.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
 * in the Software without restriction, including without limitation the rights
 * 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.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
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 * THE SOFTWARE.
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#include <migraphx/gpu/write_literals.hpp>
#include <migraphx/iterator_for.hpp>
#include <migraphx/gpu/hip.hpp>
#include <migraphx/instruction.hpp>
#include <migraphx/program.hpp>
#include <migraphx/env.hpp>

namespace migraphx {
inline namespace MIGRAPHX_INLINE_NS {
namespace gpu {

MIGRAPHX_DECLARE_ENV_VAR(MIGRAPHX_COPY_LITERALS)

void write_literals::apply(module& m) const
{
    assert(ctx != nullptr);
    std::size_t n = 0;
    for(auto ins : iterator_for(m))
    {
        if(ins->name() == "@literal")
        {
            if(enabled(MIGRAPHX_COPY_LITERALS{}))
            {
                literal l  = ins->get_literal();
                auto pre   = m.add_literal(l);
                auto alloc = m.insert_instruction(std::next(pre), hip_allocate{l.get_shape()});
                m.replace_instruction(ins, hip_copy_to_gpu{}, pre, alloc);
            }
            else
            {
                std::string id = m.name() + ":@literal:" + std::to_string(n);
                m.replace_instruction(ins, hip_copy_literal{ins->get_literal(), id});
                n++;
            }
        }
    }
}

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