https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91724
--- Comment #4 from Christophe Lyon <clyon at gcc dot gnu.org> --- It worked for me with gcc-8-branch at g:9eba9635f653291804ecb832eebe1ed96e3346ba Using: ../gcc/configure --with-arch=armv7-a --with-fpu=vfpv3-d16 --with-float=hard --with-mode=thumb --with-build-config=bootstrap-lto make profiledbootstrap -j50 but that's on a armv8 processor.