/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2015-2024 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
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#if MIGRAPHX_USE_HIPBLASLT
#include <migraphx/gpu/compile_hipblaslt.hpp>
#include <migraphx/gpu/context.hpp>
#include <migraphx/module.hpp>
#include <migraphx/iterator_for.hpp>
#include <migraphx/instruction.hpp>
#include <migraphx/make_op.hpp>

namespace migraphx {
inline namespace MIGRAPHX_INLINE_NS {
namespace gpu {

static size_t compile(migraphx::context& ctx, operation& op, instruction_ref ins)
{
    auto v = op.compile(ctx, ins->get_shape(), to_shapes(ins->inputs()));
    return v.get<std::size_t>("workspace", 0);
}

void compile_hipblaslt::apply(module& m) const
{
    assert(ctx);
    for(auto ins : iterator_for(m))
    {
        if(ins->name() != "gpu::hipblaslt_op")
            continue;
        auto op     = any_cast<hipblaslt_op>(ins->get_operator()).op;
        auto inputs = ins->inputs();

        std::size_t ws = hipblaslt_workspace_size;

        auto alloc = m.insert_instruction(
            ins, make_op("allocate", {{"shape", to_value(shape{shape::uint8_type, {ws}})}}));
        inputs.insert(std::prev(inputs.end()), alloc);
        m.replace_instruction(ins, op, inputs);

        // Calculate workspace size
        ws               = compile(*ctx, op, ins);
        auto alloc_after = m.insert_instruction(
            ins, make_op("allocate", {{"shape", to_value(shape{shape::uint8_type, {ws}})}}));

        // Replace the workspace size with actual worksapce size needed.
        auto it = std::find(inputs.begin(), inputs.end(), alloc);
        if(it != inputs.end())
        {
            *it = alloc_after; // Replace `alloc` with `alloc_after`
        }
        m.replace_instruction(ins, op, inputs);
    }
}

} // namespace gpu
} // namespace MIGRAPHX_INLINE_NS
} // namespace migraphx
#endif // MIGRAPHX_USE_HIPBLASLT