TheRock/rocm-libraries/shared/rocroller/lib/include/rocRoller/CodeGen/Arithmetic/RandomNumber.hpp

// Copyright Advanced Micro Devices, Inc., or its affiliates.
// SPDX-License-Identifier: MIT

#pragma once

#include <rocRoller/CodeGen/Arithmetic/ArithmeticGenerator.hpp>

namespace rocRoller
{
    // GetGenerator function will return the Generator to use based on the provided arguments.
    template <>
    std::shared_ptr<UnaryArithmeticGenerator<Expression::RandomNumber>>
        GetGenerator<Expression::RandomNumber>(Register::ValuePtr dst,
                                               Register::ValuePtr arg,
                                               Expression::RandomNumber const&);

    // Templated Generator class based on the register type and datatype.
    class RandomNumberGenerator : public UnaryArithmeticGenerator<Expression::RandomNumber>
    {
    public:
        RandomNumberGenerator(ContextPtr c)
            : UnaryArithmeticGenerator<Expression::RandomNumber>(c)
        {
        }

        // Match function required by Component system for selecting the correct
        // generator.
        static bool Match(Argument const& arg)
        {
            ContextPtr     ctx;
            Register::Type registerType;
            DataType       dataType;

            std::tie(ctx, registerType, dataType) = arg;
            return true;
        }

        // Build function required by Component system to return the generator.
        static std::shared_ptr<Base> Build(Argument const& arg)
        {
            if(!Match(arg))
                return nullptr;

            return std::make_shared<RandomNumberGenerator>(std::get<0>(arg));
        }

        // Method to generate instructions
        Generator<Instruction> generate(Register::ValuePtr dst,
                                        Register::ValuePtr arg,
                                        Expression::RandomNumber const&);

        inline static const std::string Name = "RandomNumberGenerator";
    };
}