[Bug tree-optimization/41339] Variables can occur multiple times in cfun->local_decls

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41339

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Note duplicate entries in that list should be harmless (well, fingers
crossing...)