Namely, this otherwise empty module contains RULES that rewrite
0, which is incorrect (according to IEEE-754) when
At the time of writing,
base-220.127.116.11:GHC/Base.lhs erroneously includes
these rules for
Floats, but not for
Doubles. This has been reported
as GHC bug #5178: http://hackage.haskell.org/trac/ghc/ticket/5178.