https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91635
--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Then gen_rtx_REG (mode, REGNO (SUBREG_REG (x))) case I meant only in case some splitter would be required for proper operation rather than just being an optimization. If they are all an optimization, the !paradoxical_subreg_p guards are probably ok.
