[Bug tree-optimization/72772] Missed SCEV after pass reordering@236440

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72772

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

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

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Most of the fallout is doing more jump-threading.  It looks like threading was
also confused by the extra degenerate PHIs.

The two ICEs are selective scheduling messing up the loop structure somehow.