[Bug c++/120955] [15/16 Regression] 50 % increase in data segment size on avr-gcc for -Os

[gjl at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120955

--- Comment #7 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
(In reply to fiesh from comment #6)
> Am I doing something wrong?
Maybe it has to do with LTO.  When you are still using -flto, then the object
files only contain LTO byte code except with -ffat-lto-objects.  Notice that
even with -ffat-lto-objects, LTO uses only the LTO byte code from the object
files.