[Bug tree-optimization/71802] [7 Regression] gcc ICE at -O3 on valid code on x86_64-linux-gnu in expand_LOOP_VECTORIZED

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71802

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Note it is CFG cleanup triggering the loop removal through merging two BBs and
propagating out the PHIs in the second.

I have a patch fixing the missed block merging in that round of CFG cleanup.