https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104253
--- Comment #11 from Michael Meissner <meissner at gcc dot gnu.org> --- The patch has been posted, I'm awaiting approval. https://gcc.gnu.org/pipermail/gcc-patches/2022-January/589469.html BTW, the copy_to_mode_reg bug I mentioned earlier goes away with the patch.