[Bug fortran/60549] [4.9 Regression] Run time doubled for fatigue.f90 due to SAVE changes

jakub at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Mon Mar 17 09:28:00 GMT 2014


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60549

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Dominique d'Humieres from comment #3)
> >  You might want to try (the imperfect) -fipa-pta, even though that pessimizes 
> > code in some cases.
> 
> It does not change the run time for fatigue.f90.

And what exact change do you get with a mere
http://gcc.gnu.org/ml/gcc-patches/2014-03/msg00754.html
patch, against same version without it (e.g. both without the SAVE for MAIN__
change, or both with that change)?



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