Method incr_sub_input_replacer

src/opr/impl/loop/grad.cpp:169–181

}

DeviceTensorND OutputRecorderSumIntoDest::incr_sub_input_replacer(
        const TensorShape& shape) {
    ++m_dbg_nr_input_replacer_call;
    auto&& dest = m_dest->dev_tensor();
    if (*m_dest_first_summed) {
        *m_dest_first_summed = false;
        mgb_assert(
                dest.shape().eq_shape(shape), "output shape changed: %s vs %s",
                dest.shape().to_string().c_str(), shape.to_string().c_str());
        fill_zero_dev_tensor(dest);
    }
    return dest;
}

/* ==================== AssignorGradOpr ==================== */
MGB_DYN_TYPE_OBJ_FINAL_IMPL(LoopGrad::AssignorGradOpr);