https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92407
--- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-13 branch has been updated by Jason Merrill <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:a645347c19b07cc7abd7bf276c6769fc41afc932 commit r13-7770-ga645347c19b07cc7abd7bf276c6769fc41afc932 Author: Jason Merrill <ja...@redhat.com> Date: Sun Jun 4 12:00:55 2023 -0400 c++: NRV and goto [PR92407] Here our named return value optimization was breaking the required destructor when the goto takes 'a' out of scope. A simple fix for the release branches is to disable the optimization in the presence of backward goto. We could do better by disabling the optimization only if there is a backward goto across the variable declaration, but we don't track that, and in GCC 14 we instead make the goto work with NRV. PR c++/92407 gcc/cp/ChangeLog: * cp-tree.h (struct language_function): Add backward_goto. * decl.cc (check_goto): Set it. * typeck.cc (check_return_expr): Prevent NRV if set. gcc/testsuite/ChangeLog: * g++.dg/opt/nrv22.C: New test.
