Method apply

src/simplify_reshapes.cpp:181–212

    }

    void apply(module& m, const match::matcher_result& mr) const
    {
        auto ins = mr.result;

        std::vector<operation> ops;
        auto x = ins;
        while(contains(shape_transform_ops(), x->get_operator().name()) or
              x->get_operator().name() == "contiguous")
        {
            ops.push_back(x->get_operator());
            x = x->inputs().front();
        }
        if(x->get_shape().scalar())
        {
            m.replace_instruction(
                ins, make_op("multibroadcast", {{"out_lens", ins->get_shape().lens()}}), x);
        }
        else if(x->get_shape().elements() == 1 and ins->get_shape().elements() == 1)
        {
            // TODO: Use squeeze or unsqueeze
            m.replace_instruction(ins, make_op("reshape", {{"dims", ins->get_shape().lens()}}), x);
        }
        else
        {
            std::reverse(ops.begin(), ops.end());
            auto opt_ops = optimize_shape_transforms(x->get_shape().lens(), ops);
            if(ops == opt_ops)
                return;
            auto y = insert_ops(m, ins, opt_ops, x);
            m.replace_instruction(ins, y);
        }
    }
};

struct find_op_shape_transform_op