[Bug tree-optimization/126161] New: ICE in ipa-cp.cc:6072 with -fprofile-use -flto

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126161

            Bug ID: 126161
           Summary: ICE in ipa-cp.cc:6072 with -fprofile-use -flto
           Product: gcc
           Version: 16.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ktkachov at gcc dot gnu.org
  Target Milestone: ---

Created attachment 64960
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=64960&action=edit
Reproducer main file

I see an ICE when building some SPEC2026 benchmark with PGO on aarch64 at 
ipa-cp.cc:6072

I'm attaching the main reproducer repro.cc that can be used to generate the TUs
needed to trigger this under LTO