https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98516
--- Comment #7 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:33a63257701c8d94ee375e32ff1837c989d8ded6 commit r11-6478-g33a63257701c8d94ee375e32ff1837c989d8ded6 Author: Richard Biener <rguent...@suse.de> Date: Tue Jan 5 16:17:15 2021 +0100 tree-optimization/98516 - fix SLP permute opt materialization When materializing on a VEC_PERM node we have to permute the incoming vectors, not the outgoing one. 2021-01-05 Richard Biener <rguent...@suse.de> PR tree-optimization/98516 * tree-vect-slp.c (vect_optimize_slp): Permute the incoming lanes when materializing on a VEC_PERM node. (vectorizable_slp_permutation): Dump the permute properly. * gcc.dg/vect/bb-slp-pr98516-1.c: New testcase. * gcc.dg/vect/bb-slp-pr98516-2.c: Likewise.
