https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115640
--- Comment #1 from Thomas Schwinge <tschwinge at gcc dot gnu.org> --- For GCN target (tested '-march=gfx908'), we've got identical code ('pr115528.exe') before vs. after the commit r15-1582-g2f83ea87ee328d337f87d4430861221be9babe1e "tree-optimization/115528 - fix vect alignment analysis for outer loop vect" code changes, so it's likely an unrelated issue?