https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80487
--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> --- In tree-ssa-alias.c, stmt_kills_ref_p knows about memcpy but not about strncpy (I had no idea until I read the man page just now that strncpy filled the buffer with 0s). Since the 2 arguments of strncpy are not allowed to overlap, the case for memcpy should also be valid for strncpy.
