https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83324
--- Comment #15 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The trunk branch has been updated by Andi Kleen <a...@gcc.gnu.org>: https://gcc.gnu.org/g:a6502accf381358173b19e615fdeb0aa17949c93 commit r15-2122-ga6502accf381358173b19e615fdeb0aa17949c93 Author: Andi Kleen <a...@linux.intel.com> Date: Tue Jan 23 23:42:08 2024 -0800 Improve must tail in RTL backend - Give error messages for all causes of non sibling call generation - When giving error messages clear the musttail flag to avoid ICEs - Error out when tree-tailcall failed to mark a must-tail call sibcall. In this case it doesn't know the true reason and only gives a vague message. gcc/ChangeLog: PR c/83324 * calls.cc (maybe_complain_about_tail_call): Clear must tail flag on error. (expand_call): Give error messages for all musttail failures.
