[Bug rtl-optimization/90706] [9 Regression] Useless code generated for stack / register operations on AVR

[bseifert at gmx dot at]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90706

--- Comment #3 from Berni <bseifert at gmx dot at> ---
There is no improvement with gcc 9.2.0