[Bug target/107403] uint64_t bitfield operation is mishandled

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107403

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
See https://gcc.gnu.org/legacy-ml/gcc/2017-10/msg00192.html