https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111133
--- Comment #2 from CVS 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:fd8e5f3c430f37c99ddcc00fcafc1a12b3475a3a commit r14-5280-gfd8e5f3c430f37c99ddcc00fcafc1a12b3475a3a Author: Richard Biener <rguent...@suse.de> Date: Wed Nov 8 13:14:59 2023 +0100 Refactor x86 decl based scatter vectorization, prepare SLP The following refactors the x86 decl based scatter vectorization similar to what I did to the gather path. This prepares scatters for SLP as well, mainly single-lane since there are multiple missing bits to support multi-lane scatters. Tested extensively on the SLP-only branch which has the ability to force SLP even for single lanes. PR tree-optimization/111133 * tree-vect-stmts.cc (vect_build_scatter_store_calls): Remove and refactor to ... (vect_build_one_scatter_store_call): ... this new function. (vectorizable_store): Use vect_check_scalar_mask to record the SLP node for the mask operand. Code generate scatters with builtin decls from the main scatter vectorization path and prepare that for SLP. * tree-vect-slp.cc (vect_get_operand_map): Do not look at the VDEF to decide between scatter or gather since that doesn't work for patterns. Use the LHS being an SSA_NAME or not instead.
