https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59371
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |hubicka at gcc dot gnu.org
--- Comment #19 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Steve Ellcey from comment #15)
> I am not sure yet where and how to improve this automatically but I have
> found an interesting hand optimization that could point to a way to fix
> this. If I change the original function:
Perhaps tree-ssa-loop-niter.c could figure out that the IV has this kind of
behavior and some loop optimization could then version the loop - one predicted
likely with finite number of iterations and another one infinite.
Honza?
