https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122573
--- Comment #3 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:a645e903e8c3940f521262ff7ccb7a46e72e3604 commit r16-5275-ga645e903e8c3940f521262ff7ccb7a46e72e3604 Author: Richard Biener <[email protected]> Date: Thu Nov 6 11:49:31 2025 +0100 tree-optimization/122573 - enhance SLP of invariant loads Currently SLP of invariant loads is only supported for the case of a single load that is splat, as side-effect of supporting this case even for non-invariant loads. The following extends this to any set of invariant loads. The way we have load permutations for these makes it a bit awkward, thus adjustments in that area. PR tree-optimization/122573 * tree-vect-slp.cc (vect_build_slp_tree_1): Support groups of invariant loads. (vect_build_slp_tree_2): Likewise. (vect_transform_slp_perm_load_1): Likewise. * tree-vect-stmts.cc (vectorizable_load): Handle non-splat SLP for invaraint loads. * gcc.dg/vect/slp-58.c: New testcase.
