https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101292
--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:1374d4b963a6ac2e0ec1645c09e5162e68b009d6 commit r12-6640-g1374d4b963a6ac2e0ec1645c09e5162e68b009d6 Author: Richard Biener <rguent...@suse.de> Date: Mon Jan 17 15:22:11 2022 +0100 middle-end/101292 - invalid memory access with warning control The warning control falls into the C++ trap of using a reference to old hashtable contents for a put operation which can end up re-allocating that before reading from the old freed referenced to source. Fixed by introducing a temporary. 2022-01-17 Richard Biener <rguent...@suse.de> PR middle-end/101292 * diagnostic-spec.c (copy_warning): Make sure to not reference old hashtable content on possible resize. * warning-control.cc (copy_warning): Likewise.
