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From: "ashimida at linux dot alibaba.com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug other/101459] Mismatch in description of option
 "-falign-functions" between source code and documentation
Date: Fri, 16 Jul 2021 01:28:06 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101459

--- Comment #5 from ashimida <ashimida at linux dot alibaba.com> ---
(In reply to Andrew Pinski from comment #4)
> (In reply to ashimida from comment #3)
> > (In reply to Richard Biener from comment #2)
> > > The flag, -falign-functions is only enabled at -O2+ (but not -Os), bu=
t the
> > > actual alignment is recorded in the 'align_functions' data which is o=
nly
> > > populated when -falign-functions is specified so I think it works as
> > > documented.
> >=20
> > so I think this flag is also worked at -O0
>=20
> I think you are misunderstanding the documentation.  The documentation is
> saying it is enabled by default at -O2 and above (but not -Os); not that =
it
> will only work at -O2 and above.

okey, now I understand, I have misunderstood this option, thank you very mu=
ch!=