https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94138
--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to Laurent Stacul from comment #5) > I forgot to remove some arguments in the command: > > /opt/1A/toolchain/x86_64-v20/bin/g++ \ > -O3 -Wl,-flto -ffat-lto-objects -fuse-linker-plugin \ > CacheLocalityTest.cpp.o -o cache_locality_test -L. libfolly.so -pthread Ok, so please provide pre-processed source file for CacheLocalityTest.cpp.o. Just add -E option to command line.