On Tue, Dec 16, 2025 at 11:31:13PM +0100, Florian Weimer wrote:
> * Steve Kargl via Gcc:
>
> > So, my question is "Does -flto simply suppress reporting from
> > -fopt-info-optall or does -flto actually suppress unrolling,
> > tree vectorization, and tree auto parallization.
>
> Do you supply -fopt-info-optall during linking?
>
I assume, yes. I build a libraries/objects with
gfortran [options] -c XXXX.f90
...
ar cr libbar.a ${OBJS}
and link the executable image with
gfortran [options] -o foo foo.f90 -lbar
In the above [options] is a list of options and the
list contains -fopt-info-optall. I added -flto=auto
to the [options] and now I see opt-info output.
--
Steve
