https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67064
--- Comment #17 from Jason Merrill <jason at gcc dot gnu.org> ---
(In reply to Daniel Gutson from comment #15)
> (In reply to Jason Merrill from comment #14)
> > '-Wpedantic' does not cause warning messages for use of the
> > alternate keywords whose names begin and end with '__'.
>
> Do you refer to the __asm__?
Yes. I don't think we should warn about __asm__ either by default or with
-pedantic, though perhaps there should be an even-more-pedantic mode that
complains about __keywords__ outside system headers.
For the original bug, I think force_paren_expr needs to ignore
DECL_HARD_REGISTER variables.
(In reply to Jens Maurer from comment #16)
> Agreed, but this:
>
> struct s {
> int i;
> };
> register struct s *reg asm( "si" );
>
> (note: no double underscores) should issue a diagnostic for violating
> 7.1.1p2 when invoking
>
> > g++ -std=c++14 -Wall -Wextra -Wpedantic -c reg-asm.cc
>
> right? It doesn't. Total silence.
Yes, that should give a pedwarn.
