[Bug middle-end/77568] [7 regression] CSE/PRE/Hoisting blocks common instruction contractions

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77568

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Note that all "bad" transforms can be done by users on the source level
already.  So the _only_ proper solution is to handle the situation in the
passes that now refuse to do an important optimization (like combine).