https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97838
--- Comment #3 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:d0a206abc6cbf0e992bf82bbb3584686eae05d34 commit r11-5050-gd0a206abc6cbf0e992bf82bbb3584686eae05d34 Author: Richard Biener <rguent...@suse.de> Date: Mon Nov 16 09:28:03 2020 +0100 tree-optimization/97838 - fix SLP leaf detection This properly handles reduction PHI nodes with unrepresented initial value as leaf in the SLP graph. 2020-11-16 Richard Biener <rguent...@suse.de> PR tree-optimization/97838 * tree-vect-slp.c (vect_slp_build_vertices): Properly handle not backwards reachable cycles. (vect_optimize_slp): Check a node is leaf before marking it visited. * gcc.dg/vect/pr97838.c: New testcase.
