Method add_return

src/module.cpp:574–582

}

instruction_ref module::add_return(std::vector<instruction_ref> args)
{
    shape instr_shape = compute_shape(builtin::returns{}, args);
    impl->push_back({builtin::returns{}, instr_shape, std::move(args)});
    auto result = std::prev(impl->instructions.end());
    instruction::backreference(result);
    assert(result->valid(begin()));
    return result;
}

instruction_ref module::insert_literal(instruction_ref ins, literal l)
{