https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69719
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
It's a broken runtime alias check. Probably no longer latent since
2015-11-10 James Greenhalgh <james.greenha...@arm.com>
Partial backport from trunk r228751.
PR tree-optimization/68238
2015-10-13 Richard Biener <rguent...@suse.de>
* tree-vect-loop.c (vect_estimate_min_profitable_iters): Use
LOOP_VINFO_COMP_ALIAS_DDRS to estimate alias versioning cost.
on the branch.
