[Bug ipa/84658] [7/8 Regression] -O3 -fmerge-all-constants causes incorrect for-each loop generation.

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84658

--- Comment #22 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #21)
> (In reply to Jakub Jelinek from comment #20)
> > How would IPA-PTA work then?
> 
> Not having experience how that works, but I would expect a complete rebuild.
> Similar to what the tree PTA does?

Note that the TREE PTA is just a TODO_rebuild_alias flag. Thus I would expect
IPA PTA is also a rebuild of PTA information.