https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117484
--- Comment #6 from GCC 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:61cd1c43b82dc9d4c3edf122d22887fdce340223 commit r15-5118-g61cd1c43b82dc9d4c3edf122d22887fdce340223 Author: Richard Biener <rguent...@suse.de> Date: Fri Nov 8 09:43:26 2024 +0100 tree-optimization/117484 - issue with SLP discovery of permuted .MASK_LOAD When we do SLP discovery of a .MASK_LOAD for a dataref group with gaps the discovery for the mask will have gaps as well and this was unexpected in a few places. The following re-organizes things slightly to accomodate for this. PR tree-optimization/117484 * tree-vect-slp.cc (vect_build_slp_tree_2): Handle gaps in mask discovery. Fix condition to release the load permutation. (vect_lower_load_permutations): Assert we get no load permutation for the unpermuted node. * tree-vect-slp-patterns.cc (linear_loads_p): Properly identify loads (without permutation). (compatible_complex_nodes_p): Likewise. * gcc.dg/vect/pr117484-1.c: New testcase. * gcc.dg/vect/pr117484-2.c: Likewise.
