[Bug target/92729] New: [avr] Convert the backend to MODE_CC so it can be kept in future releases

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92729

            Bug ID: 92729
           Summary: [avr] Convert the backend to MODE_CC so it can be kept
                    in future releases
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: glaubitz at physik dot fu-berlin.de
  Target Milestone: ---
            Target: avr-*-*

This is a tracker bug for the convert the avr backend from CC0 to MODE_CC so it
can be kept in future releases.

See: https://gcc.gnu.org/wiki/CC0Transition

I will be using this bug report to create a bounty on BountySource.com.

We have already successfully funded such a conversion for the m68k backend, see
#91851.