[Bug ipa/117668] New: fold_marked_statements in tree-inline.cc does not purge the abnormal edges after folding

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117668

            Bug ID: 117668
           Summary: fold_marked_statements in tree-inline.cc does not
                    purge the abnormal edges after folding
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Keywords: internal-improvement, missed-optimization
          Severity: enhancement
          Priority: P3
         Component: ipa
          Assignee: pinskia at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---

While deciding on how to fix PR 117665, I saw that fold_marked_statements does
not purge the abnormal edges after the folding.

See https://gcc.gnu.org/PR117665#c8 for a patch which I didn't think was the
best though.

I will handle this later on.