https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106272
--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The trunk branch has been updated by Marek Polacek <mpola...@gcc.gnu.org>: https://gcc.gnu.org/g:86a15b266a7284f3aa1b12494a475f31416b981d commit r13-1689-g86a15b266a7284f3aa1b12494a475f31416b981d Author: Marek Polacek <pola...@redhat.com> Date: Tue Jul 12 20:18:56 2022 -0400 libcpp: Avoid pessimizing std::move [PR106272] std::move in a return statement can prevent the NRVO: <https://developers.redhat.com/blog/2019/04/12/understanding-when-not-to-stdmove-in-c> PR106272 reports that we have two such cases in class label_text's member functions. We have -Wpessimizing-move that's supposed to detect problematic std::move uses, but in this case it didn't trigger. I've filed PR106276 to track that. PR preprocessor/106272 libcpp/ChangeLog: * include/line-map.h (class label_text): Don't std::move in a return statement.
