Support for NOINLINE attribute

[Rimvydas Jasinskas]

On Fri, Feb 10, 2023 at 10:24 AM Steve Kargl via Fortran
<fortran@gcc.gnu.org> wrote:
> > would it be possible to extend gfortran attribute support to handle
> > NOINLINE too? Like: "!GCC$ ATTRIBUTES noinline :: ...".
>
> It looks to me like you are conflating three independent topics.
> What does NOINLINE have to do with WEAK?  What does WEAK have
> to do with NORETURN?

As I wrote these are optional (different issues, quite useful to have
but still easy to work around with different means), the main issue is
still missing NOINLINE for -flto.

> More importantly what is the effect of NOINLINE if a user
> does not specify the -flto option?  Does this block inlining
> regardless of LTO?
>
> --
> steve
Yes, there is no way to differentiate between LTO and non-LTO
compilations (at least from what I have seen in the code).
As long as subroutines/functions are in separate compilation units,
this has no effect for non-LTO builds anyway.  Main issue is to deal
with unintentional over inlining between different compilation units
with lto1 backend.

Best regards,
Rimvydas