ConnectProlog adds new incoming values to exit phi nodes which can
change the SCEV for the phi after 20d798bd47ec51.
Fix is analog to cfc741bc0e029.
Fixes#56286.
ConnectEpilog adds new incoming values to exit phi nodes which can
change the SCEV for the phi after 20d798bd47ec51.
Fix is analog to cfc741bc0e029.
Fixes#56282.