https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114872
--- Comment #17 from Sergei Trofimovich <slyfox at gcc dot gnu.org> --- > 1) attach your *.s file and state which exact compiler you used (revision) Generate code first: https://slyfox.uni.cx/b/gcc/PR114872/d.tar.gz (4MB, does not fit on bugzilla's 1MB limit) is the archive of source files from sage-10.3: - element.c: original unpreprocessed file - element.c.c: preprocessed file - element.S: assembly file (-S) - element-verbose.S: assembly file (-S -fverbose-asm, has compiler options) Compiler: # gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/13/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /dev/shm/portage/sys-devel/gcc-13.2.1_p20240503/work/gcc-13-20240503/configure --host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr --bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/13 --includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/13/include --datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/13 --mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/13/man --infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/13/info --with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/13/include/g++-v13 --disable-silent-rules --disable-dependency-tracking --with-python-dir=/share/gcc-data/x86_64-pc-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 13.2.1_p20240503 p15' --with-gcc-major-version-only --enable-libstdcxx-time --enable-lto --disable-libstdcxx-pch --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --enable-multilib --with-multilib-list=m32,m64 --disable-fixed-point --enable-targets=all --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 --disable-fixincludes Thread model: posix Supported LTO compression algorithms: zlib gcc version 13.2.1 20240503 (Gentoo 13.2.1_p20240503 p15) Note: it's a weekly snapshot of 20240503 with --enable-default-ssp. I think it's a r13-8684-g704b15e277a879. The compiler also has a few distro-specific patches on top: https://gitweb.gentoo.org/proj/gcc-patches.git/tree/13.2.0/gentoo. Most of them should not affect code generation too much, but some like 22_all_default_ssp-buffer-size.patch and 84_all_x86_PR110792-Early-clobber-issues-with-rot32di2.patch might.
