[Bug target/78804] [RX] -m64bit-doubles does not work

[ian at airs dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78804

--- Comment #25 from Ian Lance Taylor <ian at airs dot com> ---
I have no particular concerns with dropping the bitfield code, but clearly it
has to be tested on a couple of little-endian platforms.