https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110491
--- Comment #3 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:819285ef10a87d663f8c181c06aa88d1d9f75aed commit r14-2296-g819285ef10a87d663f8c181c06aa88d1d9f75aed Author: Richard Biener <rguent...@suse.de> Date: Tue Jul 4 12:52:27 2023 +0200 tree-optimization/110491 - PHI-OPT and undefs The following makes sure to not make conditional undefs in PHI arguments unconditional by folding cond ? arg1 : arg2. PR tree-optimization/110491 * tree-ssa-phiopt.cc (match_simplify_replacement): Check whether the PHI args are possibly undefined before folding the COND_EXPR. * gcc.dg/torture/pr110491.c: New testcase.
