[Haskell] Tuples & Lists

"This part of the conditional can be written more succinctly as: all (== test_lcv) [init_lcv, update_lcv, update_lcv']" Wouldn't this be be better as tuple avoiding list overhead or does ghc optimize it out? If it could be done as a tuple. all (== test_lcv) (init_lcv, update_lcv, update_lcv')