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{-# LANGUAGE MagicHash #-}
module T7287 where
import GHC.Prim
{-# RULES
"int2Word#/word2Int#" forall x. int2Word# (word2Int# x) = x
#-}
{- We get a legitimate
T7287.hs:7:3: warning:
Rule int2Word#/word2Int# may never fire because
rule "word2Int#" for ‘word2Int#’ might fire first
Probable fix: add phase [n] or [~n] to the competing rule
because rule "word2Int#" is the constant folding rule that converts
a sufficiently-narrow Word# literal to an Int#. There is a similar
one for int2Word#, so the whole lot is confluent. -}
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