jit.cpp

#include <migraphx/compile_src.hpp>
#include <migraphx/dynamic_loader.hpp>
#include <migraphx/cpp_generator.hpp>
#include <migraphx/module.hpp>
#include <migraphx/make_op.hpp>
#include <test.hpp>

// NOLINTNEXTLINE
const std::string add_42_src = R"migraphx(
extern "C" int add(int x)
{
    return x+42;
}
)migraphx";

// NOLINTNEXTLINE
const std::string preamble = R"migraphx(
#include <cmath>
)migraphx";

template <class F>
std::function<F>
compile_function(const std::string& src, const std::string& flags, const std::string& fname)
{
    migraphx::src_compiler compiler;
    compiler.flags  = flags + "-std=c++14 -fPIC -shared";
    compiler.output = "libsimple.so";
    migraphx::src_file f;
    f.path     = "main.cpp";
    f.content  = std::make_pair(src.data(), src.data() + src.size());
    auto image = compiler.compile({f});
    return migraphx::dynamic_loader{image}.get_function<F>(fname);
}

template <class F>
std::function<F> compile_module(const migraphx::module& m, const std::string& flags = "")
{
    migraphx::cpp_generator g;
    g.fmap([](auto&& name) { return "std::" + name; });
    g.create_function(g.generate_module(m).set_attributes({"extern \"C\""}));

    return compile_function<F>(preamble + g.str(), flags, m.name());
}

TEST_CASE(simple_run)
{
    auto f = compile_function<int(int)>(add_42_src, "", "add");
    EXPECT(f(8) == 50);
    EXPECT(f(10) == 52);
}

TEST_CASE(generate_module)
{
    migraphx::module m("foo");
    auto x   = m.add_parameter("x", migraphx::shape::float_type);
    auto y   = m.add_parameter("y", migraphx::shape::float_type);
    auto sum = m.add_instruction(migraphx::make_op("add"), x, y);
    m.add_instruction(migraphx::make_op("sqrt"), sum);

    auto f = compile_module<float(float, float)>(m);

    EXPECT(test::near(f(2, 2), 2));
    EXPECT(test::near(f(10, 6), 4));
    EXPECT(test::near(f(1, 2), std::sqrt(3)));
}

TEST_CASE(generate_module_with_literals)
{
    migraphx::module m("foo");
    auto x    = m.add_parameter("x", migraphx::shape::float_type);
    auto y    = m.add_parameter("y", migraphx::shape::float_type);
    auto z    = m.add_literal(1.f);
    auto sum1 = m.add_instruction(migraphx::make_op("add"), x, z);
    auto sum2 = m.add_instruction(migraphx::make_op("add"), sum1, y);
    m.add_instruction(migraphx::make_op("sqrt"), sum2);

    auto f = compile_module<float(float, float)>(m);

    EXPECT(test::near(f(1, 2), 2));
    EXPECT(test::near(f(9, 6), 4));
    EXPECT(test::near(f(0, 2), std::sqrt(3)));
}

int main(int argc, const char* argv[]) { test::run(argc, argv); }