https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118621
--- Comment #3 from Sam James <sjames at gcc dot gnu.org> --- I tried to reproduce on Gentoo with our dev-perl/PDL package (which is a bit outdated as we need to package the new split bits, I think) but couldn't. I also tried to clone PDL and run the testsuite and that passed too, with: ``` Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/powerpc64le-unknown-linux-gnu/15/lto-wrapper Target: powerpc64le-unknown-linux-gnu Configured with: /var/tmp/portage/sys-devel/gcc-15.0.1_pre20250119/work/gcc-15-20250119/configure --host=powerpc64le-unknown-linux-gnu --build=powerpc64le-unknown-linux-gnu --prefix=/usr --bindir=/usr/powerpc64le-unknown-linux-gnu/gcc-bin/15 --includedir=/usr/lib/gcc/powerpc64le-unknown-linux-gnu/15/include --datadir=/usr/share/gcc-data/powerpc64le-unknown-linux-gnu/15 --mandir=/usr/share/gcc-data/powerpc64le-unknown-linux-gnu/15/man --infodir=/usr/share/gcc-data/powerpc64le-unknown-linux-gnu/15/info --with-gxx-include-dir=/usr/lib/gcc/powerpc64le-unknown-linux-gnu/15/include/g++-v15 --disable-silent-rules --disable-dependency-tracking --with-python-dir=/share/gcc-data/powerpc64le-unknown-linux-gnu/15/python --enable-objc-gc --enable-languages=c,c++,go,objc,obj-c++,fortran,ada,rust --enable-obsolete --enable-secureplt --disable-werror --with-system-zlib --enable-nls --without-included-gettext --disable-libunwind-exceptions --enable-checking=yes,extra,rtl --with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo 15.0.1_pre20250119 p42' --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 --with-long-double-format=ieee --enable-targets=all --enable-libgomp --disable-libssp --enable-libada --disable-systemtap --disable-valgrind-annotations --disable-vtable-verify --disable-libvtv --with-zstd --with-isl --disable-isl-version-check --enable-default-pie --enable-host-pie --enable-host-bind-now --enable-default-ssp --disable-fixincludes --with-build-config=bootstrap-lto Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 15.0.1 20250119 (experimental) (Gentoo 15.0.1_pre20250119 p42) ``` I didn't probe further. I suspect that if you add a main and stub out gsl_linalg_complex_LU_det with a no-op, the same thing won't happen and that gsl is miscompiled instead?
