https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64231
--- Comment #4 from Sandra Loosemore <sandra at codesourcery dot com> --- In case it's also relevant, my GCC was configured with: Configured with: /scratch/sandra/aarch64-fsf/src/gcc-mainline/configure --build=i686-pc-linux-gnu --host=i686-pc-linux-gnu --target=aarch64-linux-gnu --enable-threads --disable-libmudflap --disable-libssp --disable-libstdcxx-pch --with-march=armv8-a --disable-libsanitizer --with-gnu-as --with-gnu-ld --enable-languages=c,c++ --enable-shared --enable-lto --enable-symvers=gnu --enable-__cxa_atexit --with-glibc-version=2.21 --disable-nls --prefix=/scratch/sandra/aarch64-fsf/install --disable-shared --disable-threads --disable-libssp --disable-libgomp --without-headers --with-newlib --disable-decimal-float --disable-libffi --disable-libquadmath --disable-libitm --disable-libatomic --enable-languages=c --with-sysroot=/scratch/sandra/aarch64-fsf/install/aarch64-linux-gnu/libc --with-gmp=/scratch/sandra/aarch64-fsf/obj/pkg-mainline-0-aarch64-linux-gnu/fsf-mainline-0-aarch64-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr --with-mpfr=/scratch/sandra/aarch64-fsf/obj/pkg-mainline-0-aarch64-linux-gnu/fsf-mainline-0-aarch64-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr --with-mpc=/scratch/sandra/aarch64-fsf/obj/pkg-mainline-0-aarch64-linux-gnu/fsf-mainline-0-aarch64-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr --with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm' --with-isl=/scratch/sandra/aarch64-fsf/obj/pkg-mainline-0-aarch64-linux-gnu/fsf-mainline-0-aarch64-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr --with-cloog=/scratch/sandra/aarch64-fsf/obj/pkg-mainline-0-aarch64-linux-gnu/fsf-mainline-0-aarch64-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr --disable-libgomp --disable-libitm --disable-libatomic --disable-libssp --enable-poison-system-directories --with-build-time-tools=/scratch/sandra/aarch64-fsf/install/aarch64-linux-gnu/bin --with-build-time-tools=/scratch/sandra/aarch64-fsf/install/aarch64-linux-gnu/bin SED=sed Thread model: single gcc version 5.0.0 20141120 (experimental) (GCC)
