https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93474
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |WONTFIX
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
GCC documents this:
https://gcc.gnu.org/onlinedocs/gcc-9.2.0/gcc/Structures-unions-enumerations-and-bit-fields-implementation.html#Structures-unions-enumerations-and-bit-fields-implementation
Allowable bit-field types other than _Bool, signed int, and unsigned int (C99
and C11 6.7.2.1).
Other integer types, such as long int, and enumerated types are permitted even
in strictly conforming mode.
--- CUT ----
It is up to each other compiler to document the implementation defined
behavior. GCC does document what happens.