Re: [RFC] Extend ipa-bitwise-cp with pointer alignment propagation

[Jan Hubicka <hubicka@ucw.cz>]

> On 6 October 2016 at 18:51, Jan Hubicka <hubicka@ucw.cz> wrote:
> >> >
> >> > What do you mean by "for instance?"  What are the other cases when it
> >> > happens?
> >> Well ipa_get_type() returned NULL for 481.wrf, and I assumed it was a
> >> fortran-only
> >> code-base but apparently it's a mix of C and fortran.
> >
> > Yep, I also have expreinece that the K&R style declarations are more common
> > than one would expect 30 years after the language was obsoletted.
> >> ipa_get_type() returned NULL for param 'n' in
> >> get_initial_data_value_() which is defined
> >> as K&R style function in wrf_num_bytes_between.c, so it seems K&R is the
> >> only case where ipa_get_type() returns NULL.
> >>
> >> I have a question though on how to reduce fortran test-cases or a mix
> >> of fortran/C
> >> like 481.wrf ? For C/C++ only tests-cases, I use creduce.
> >
> > I use delta/multidelta
> > https://gcc.gnu.org/wiki/A_guide_to_testcase_reduction
> >
> > It works pretty well and one can reduce first list of files and then file at a
> > time.
> Thanks! I will try to reduce 481.wrf assert ICE for practice -;)
> Is the alignment propagation patch OK to commit ?
OK,
Honza
> 
> Thanks,
> Prathamesh
> >
> > Honza