test_loop.cpp

#include "verify_program.hpp"
#include <migraphx/literal.hpp>
#include <migraphx/program.hpp>
#include <migraphx/generate.hpp>
#include <migraphx/make_op.hpp>

struct test_loop : verify_program<test_loop>
{
    migraphx::program create_program() const
    {
        migraphx::program p;
        auto* mm = p.get_main_module();
        migraphx::shape si{migraphx::shape::int64_type};
        migraphx::shape s{migraphx::shape::int64_type, {1}};
        migraphx::shape sc{migraphx::shape::bool_type};
        int64_t iter_num = 10;
        auto in_iter     = mm->add_literal(migraphx::literal(si, {iter_num}));
        auto in_cond     = mm->add_parameter("ccond", sc);
        int64_t value    = 5;
        auto in_val      = mm->add_literal(migraphx::literal(s, {value}));

        auto* body = p.create_module("loop_module");
        auto iter  = body->add_parameter("iter_num", si);
        body->add_parameter("cond", sc);
        auto in_v               = body->add_parameter("input", s);
        std::vector<int64_t> vd = {3};
        auto l                  = body->add_literal(migraphx::literal(si, vd));
        auto ad                 = body->add_instruction(migraphx::make_op("add"), iter, l);
        auto val                = body->add_instruction(migraphx::make_op("add"), in_v, ad);
        auto eq                 = body->add_instruction(migraphx::make_op("equal"), iter, l);
        auto beq                = body->add_instruction(
            migraphx::make_op("convert", {{"target_type", migraphx::shape::bool_type}}), eq);
        auto neq = body->add_instruction(migraphx::make_op("not"), beq);
        body->add_return({neq, val, val});

        auto rl = mm->add_instruction(
            migraphx::make_op("loop", {{"max_iterations", 8}}), {in_iter, in_cond, in_val}, {body});
        auto r0 = mm->add_instruction(migraphx::make_op("get_tuple_elem", {{"index", 0}}), rl);
        auto r1 = mm->add_instruction(migraphx::make_op("get_tuple_elem", {{"index", 1}}), rl);
        mm->add_return({r0, r1});

        return p;
    }
};