https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102725
--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #1) > You need -fno-tree-loop-distribution -fno-tree-loop-distribute-patterns to > turn it off. There is another older bug about this for memcpy. Well, I would expect this optimization would do the optimization only if __builtin_strlen is allowed (not disallowed by the option).
