https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78105
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- > -O3 -mtune=cortex-a53 -fomit-frame-pointer -fipa-pta -march=armv8-a+crc > -ftree-vectorize Can you show the exact command line which you used to configure GCC? And the output of env? A normal bootstrap with --with-build-config=bootstrap-lto without those options and it worked.