https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64731
--- Comment #8 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:cc0e22b3f25d4b2a326322bce711179c02377e6c commit r14-788-gcc0e22b3f25d4b2a326322bce711179c02377e6c Author: Richard Biener <rguent...@suse.de> Date: Fri May 12 13:43:27 2023 +0200 tree-optimization/64731 - extend store-from CTOR lowering to TARGET_MEM_REF The following also covers TARGET_MEM_REF when decomposing stores from CTORs to supported elementwise operations. This avoids spilling and cleans up after vector lowering which doesn't touch loads or stores. It also mimics what we already do for loads. PR tree-optimization/64731 * tree-ssa-forwprop.cc (pass_forwprop::execute): Also handle TARGET_MEM_REF destinations of stores from vector CTORs. * gcc.target/i386/pr64731.c: New testcase.