https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114859
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- LTO doesn't seem to make a difference. And without LTO bisection points at openmpi-build/amgprec/impl/amg_d_hierarchy_bld.o when this is compiled with r14-9704 even when all other sources are compiled with the newer compiler, the testcase works, while when this is compiled with r14-9924 and all other sources with the older compiler, it crashes.
