https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99576
--- Comment #16 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Iain D Sandoe <ia...@gcc.gnu.org>: https://gcc.gnu.org/g:58a7b1e354530d8dfe7d8fb859c8b8b5a9140f1f commit r13-4479-g58a7b1e354530d8dfe7d8fb859c8b8b5a9140f1f Author: Iain Sandoe <i...@sandoe.co.uk> Date: Wed Nov 30 17:05:56 2022 +0000 coroutines: Do not promote temporaries that will be elided. We usually need to 'promote' (i.e. save to the coroutine frame) any temporary variable that is in a target expression that must persist across an await expression. However, if the TE is just used as a direct initializer for another object it will be elided - and we should not promote it since that would lead to a DTOR call for something that is never constructed. Since we now have a mechanism to tell if TEs will be elided, use that. Although the PRs referenced initially appear to be different issues, they all stem from this. Co-Authored-By: Adrian Perl <adrian.p...@web.de> Signed-off-by: Iain Sandoe <i...@sandoe.co.uk> PR c++/100611 PR c++/101367 PR c++/101976 PR c++/99576 gcc/cp/ChangeLog: * coroutines.cc (find_interesting_subtree): Do not promote temporaries that are only used as direct initializers for some other object. gcc/testsuite/ChangeLog: * g++.dg/coroutines/pr100611.C: New test. * g++.dg/coroutines/pr101367.C: New test. * g++.dg/coroutines/pr101976.C: New test. * g++.dg/coroutines/pr99576_1.C: New test. * g++.dg/coroutines/pr99576_2.C: New test.
