https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119376
--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 60863 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=60863&action=edit gcc15-pr119376-c11.patch Untested patch for the #c11 issue. I agree it is desirable to diagnose this only in the last tail pass (i.e. tail_calls pass, rather than tail_recursion passes). Plus, given that tail_calls pass uses a dbg_cnt and isn't done for -O0 or -Og, having musttail pass depend on just !flag_optimize_sibling_calls isn't correct.
