Function get_inputs_format

imperative/src/impl/transformations/format.cpp:426–436

}

inline FT get_inputs_format(Span<ValueRef>& inputs, const FormatTransformation& t) {
    FT format(FT::DEFAULT);
    for (auto& inp : inputs) {
        auto&& inp_format = inp.cast(t.value_type()).format();
        if (inp_format != FT::DEFAULT) {
            mgb_assert(format == FT::DEFAULT || inp_format == format);
            format = inp_format.type();
        }
    }
    return format;
}

inline bool if_convert_format(const Format src_fmt, const FT& dst_fmt) {
    if ((src_fmt == FT::NCHW && dst_fmt == FT::DEFAULT) ||