https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107627
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 54034 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54034&action=edit gcc13-pr107627-imm.patch Untested patch to improve the case where one of the concat operand is constant.
