https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94261
--- Comment #11 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:4dcc4502f316a7320fe72b62c60af12c77e1c96c commit r10-7335-g4dcc4502f316a7320fe72b62c60af12c77e1c96c Author: Richard Biener <rguent...@suse.de> Date: Mon Mar 23 13:08:41 2020 +0100 tree-optimization/94261 - avoid IL adjustments in SLP analysis The remaining IL adjustment done by SLP analysis turns out harmful since we share them in the now multiple analyses states. It turns out we do not actually need those apart from the case where we reorg scalar stmts during re-arrangement when optimizing load permutations in SLP reductions. But that isn't needed either now since we only need to permute non-isomorphic parts which now reside in separate SLP nodes who are all leafs. 2020-03-23 Richard Biener <rguent...@suse.de> PR tree-optimization/94261 * tree-vect-slp.c (vect_get_and_check_slp_defs): Remove IL operand swapping code. (vect_slp_rearrange_stmts): Do not arrange isomorphic nodes that would need operation code adjustments.
