#7287: Primops in RULES generate warnings
-----------------------------------------------+----------------------------
Reporter: rl | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.7 | Keywords:
Os: Unknown/Multiple | Architecture:
Unknown/Multiple
Failure: Incorrect warning at compile-time | Testcase:
Blockedby: | Blocking:
Related: |
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{{{
import GHC.Prim
{-# RULES
"int2Word#/word2Int#" forall x. int2Word# (word2Int# x) = x
#-}
}}}
produces the following warning:
{{{
Rule "int2Word#/word2Int#" may never fire
because `int2Word#' might inline first
Probable fix: add an INLINE[n] or NOINLINE[n] pragma on `int2Word#'
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7287>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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