https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123983
--- Comment #13 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:856ba1d7f786b0b5e53042e292296391ae1b0da4 commit r16-7324-g856ba1d7f786b0b5e53042e292296391ae1b0da4 Author: Richard Biener <[email protected]> Date: Thu Feb 5 11:09:59 2026 +0100 tree-optimization/123983 - only update IV on the requested edge The following reverts back to only updating the IV after the vectorized loop on the requested edge which avoids disrupting live value vectorization. PR tree-optimization/123983 * tree-vect-loop-manip.cc (vect_update_ivs_after_vectorizer): Only update the PHI argument on the requested edge. * gcc.dg/vect/vect-pr123983.c: New testcase.
