https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114231
--- Comment #17 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-12 branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:a7b1d814da0aa2e7331c56180264a8b786012971 commit r12-10448-ga7b1d814da0aa2e7331c56180264a8b786012971 Author: Richard Biener <rguent...@suse.de> Date: Tue Mar 5 10:55:56 2024 +0100 tree-optimization/114231 - use patterns for BB SLP discovery root stmts The following makes sure to use recognized patterns when vectorizing roots during BB SLP discovery. We need to apply those late since during root discovery we've not yet done pattern recognition. All parts of the vectorizer assume patterns get used, for the testcase we mix this up when doing live lane computation. PR tree-optimization/114231 * tree-vect-slp.cc (vect_analyze_slp): Lookup patterns when processing a BB SLP root. * gcc.dg/vect/pr114231.c: New testcase. (cherry picked from commit 04fffbaa87997ac893a9aa68b674c938ba3ecddb)
