https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112367
--- Comment #4 from Sam James <sjames at gcc dot gnu.org> --- $ gcc /tmp/foo.c -lm -frounding-math -o /tmp/foo $ /tmp/foo x=0x1.e90028p+4 $ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/aarch64-unknown-linux-gnu/13/lto-wrapper Target: aarch64-unknown-linux-gnu Configured with: /var/tmp/portage/sys-devel/gcc-13.2.1_p20230826/work/gcc-13-20230826/configure --host=aarch64-unknown-linux-gnu --build=aarch64-unknown-linux-gnu --prefix=/usr --bindir=/usr/aarch64-unknown-linux-gnu/gcc-bin/13 --includedir=/usr/lib/gcc/aarch64-unknown-linux-gnu/13/include --datadir=/usr/share/gcc-data/aarch64-unknown-linux-gnu/13 --mandir=/usr/share/gcc-data/aarch64-unknown-linux-gnu/13/man --infodir=/usr/share/gcc-data/aarch64-unknown-linux-gnu/13/info --with-gxx-include-dir=/usr/lib/gcc/aarch64-unknown-linux-gnu/13/include/g++-v13 --disable-silent-rules --disable-dependency-tracking --with-python-dir=/share/gcc-data/aarch64-unknown-linux-gnu/13/python --enable-languages=c,c++,fortran --enable-obsolete --enable-secureplt --disable-werror --with-system-zlib --enable-nls --without-included-gettext --disable-libunwind-exceptions --enable-checking=release --with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo Hardened 13.2.1_p20230826 p7' --with-gcc-major-version-only --enable-libstdcxx-time --enable-lto --disable-libstdcxx-pch --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --disable-multilib --disable-fixed-point --enable-libgomp --disable-libssp --disable-libada --disable-cet --disable-systemtap --disable-valgrind-annotations --disable-vtable-verify --disable-libvtv --without-zstd --without-isl --enable-default-pie --enable-default-ssp --with-build-config=bootstrap-lto Thread model: posix Supported LTO compression algorithms: zlib gcc version 13.2.1 20230826 (Gentoo Hardened 13.2.1_p20230826 p7)