https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93868
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Guenther <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:81c833b311b16cfd87a947374d5ffbbd48facd03 commit r10-6838-g81c833b311b16cfd87a947374d5ffbbd48facd03 Author: Richard Biener <rguent...@suse.de> Date: Tue Feb 25 10:31:16 2020 +0100 tree-optimization/93868 copy SLP tree before re-arranging stmts This avoids altering possibly shared SLP subtrees when attempting to get rid of permutations in SLP reductions by copying the SLP subtree before re-arranging stmts in it. 2020-02-25 Richard Biener <rguent...@suse.de> PR tree-optimization/93868 * tree-vect-slp.c (slp_copy_subtree): New function. (vect_attempt_slp_rearrange_stmts): Copy the SLP tree before re-arranging stmts in it. * gcc.dg/torture/pr93868.c: New testcase.
