This is driver bug. With -flto-partition=none it for whatever reason forgets
about -fresolution:
../lto1 -quiet -dumpdir ./ -dumpbase prog -mtune=generic -march=x86-64
-auxbase-strip /tmp/cctgIO6R.lto.o -version -flto-partition=none
-fuse-linker-plugin -fwhole-program -fdump-ipa-all-details
The problem is that collect2 should be in LTO_MODE_NONE when plugin is used but
it confuses itself and sets itself into LTO_MODE_LTO. Consequently compilation
is done twice, once correctly with plugin and then once again with collect2
path.
I am testing the attached patch. It will also make
