[Bug target/87376] [avr] Miscompilation with __memx and long long addition

[gjl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87376

--- Comment #2 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
Note: As TER performs the propagation, a work-around is to compile with
-fno-tree-ter.