https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109237
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> --- Created attachment 54727 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54727&action=edit patch for delete_trivially_dead_insns The attached improves that to trivially dead code : 2.16 ( 3%) I've verified the set of debug insns kept is the same as before.
