https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67492
ktkachov at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
CC| |ktkachov at gcc dot gnu.org
Resolution|--- |WONTFIX
--- Comment #5 from ktkachov at gcc dot gnu.org ---
(In reply to Michael Weiser from comment #4)
> Okay, I can see this is headed for a WONTFIX. Can you please answer my
> questions before we chuck it?
>
> 1. How hard would it be or is there even some effort/patch to make gcc only
> compile in support for a selected number of CPUs of a given target,
> indirectly reducing size of insn-attrtab/insn-automata?
There's no effort to do that that I know of. There are ways to reduce the
automaton size, but that involves modifying the pipeline descriptions
(<core-name>.md files) and as such would require a lot of
benchmarking/validation to make sure it doesn't regress code quality.
>
> 2. Incidentally: Is my patch likely to produce a seriously broken compiler?
Well, it's definitely not appropriate for submission upstream. Just removing
cores is not the way to go.
If that's a patch you want to use privately for your arm board and you only
ever expect to compile for a single -mcpu then I suppose it may work, but don't
expect any support for it ;)
>
> Thanks!
