[Bug middle-end/70807] fwprop pass ICE with incoming CDI_DOMINATORS

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70807

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |rguenth at gcc dot gnu.org

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
fwprop already calculates dominance info and frees it as well.  It invalidates
it via calling purge_dead_edges.  It also calls cleanup_cfg twice for no good
reason (in fwprop_done and after it).

As dominance calculation does a verify-dominance info dom info should be
up-to-date there.  freeing it before fwprop can't fix anything.