https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121256
--- Comment #12 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-14 branch has been updated by Richard Biener <[email protected]>: https://gcc.gnu.org/g:97ec33fed5caa8b64ae054b5bb8b122acb390124 commit r14-12083-g97ec33fed5caa8b64ae054b5bb8b122acb390124 Author: Richard Biener <[email protected]> Date: Sun Jul 27 18:42:25 2025 +0200 tree-optimization/121256 - properly support SLP in vectorizable recurrence We failed to build the correct initialization vector. For VLA vectors and a non-uniform initialization vector this rejects vectorization for now. PR tree-optimization/121256 * tree-vect-loop.cc (vectorizable_recurr): Build a correct initialization vector for SLP_TREE_LANES > 1. * gcc.dg/vect/vect-recurr-pr121256.c: New testcase. * gcc.dg/vect/vect-recurr-pr121256-2.c: Likewise. (cherry picked from commit 26dc9aa285b53551c55d3d660bb6da21d59d7023)
