[Bug target/70677] Suboptimal cond on AVR: unneeded stack frame

[night_ghost at ykoctpa dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70677

--- Comment #6 from night_ghost at ykoctpa dot ru ---
Thank you again for such good key - it saves me 150 bytes. Moreover this key is
not listed in GCC's possible optimisations for AVR. 


PS. Why it not included by default to -Os? What can be affected by it?