[Bug c/88662] Document trap representations of _Bool

[vincent-gcc at vinc17 dot net via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88662

--- Comment #17 from Vincent Lefèvre <vincent-gcc at vinc17 dot net> ---
(In reply to Joseph S. Myers from comment #16)
> It's for the psABI to document the valid representations of bool on a given
> platform.

But GCC does not honor the psABI for the AMD64 (x86-64) architecture. Or should
this be regarded as a bug?