https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107950
--- Comment #7 from Jan Hubicka <hubicka at gcc dot gnu.org> --- Thanks for looking into the incremental link of libbackend. I had it in my tree for a while but never got around implementing correct way to enable it only during bootstrap since host compiler may not support it. It would be nice to have it in since it should reduce WPA memory use and also test this code path. I also think it is the case where partial linking makes the symbol to be pulled into LTO binary at the initial link time. It should be optimized away if linker was not complaining.