https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122885
--- Comment #1 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <[email protected]>: https://gcc.gnu.org/g:b5ffe35f12e15e29b508eb937251d067febe18fe commit r16-5644-gb5ffe35f12e15e29b508eb937251d067febe18fe Author: Richard Biener <[email protected]> Date: Thu Nov 27 10:04:19 2025 +0100 tree-optimization/122885 - avoid re-using accumulator for some bool vectors When boolean vectors do not use vector integer modes we are not set up to produce the partial epilog in a correctly typed way, so avoid this situation. For the integer mode case we are able to pun things correctly, so keep that working. PR tree-optimization/122885 * tree-vect-loop.cc (vect_find_reusable_accumulator): Reject mask vectors which do not use integer vector modes. (vect_create_partial_epilog): Assert the same. * gcc.dg/torture/pr122873.c: New testcase.
