[GHC] #7374: rule not firing

[GHC]

#7374: rule not firing
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    Reporter:  igloo             |       Owner:                  
        Type:  bug               |      Status:  new             
    Priority:  normal            |   Milestone:  7.8.1           
   Component:  Compiler          |     Version:  7.6.1           
    Keywords:                    |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
  Difficulty:  Unknown           |    Testcase:                  
   Blockedby:                    |    Blocking:                  
     Related:                    |  
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Changes (by igloo):

 * cc: duncan@… (added)


Comment:

 The ByteString rules are:
 {{{
 {-# RULES
 "ByteString specialise break (x==)" forall x.
     break ((==) x) = breakByte x
 "ByteString specialise break (==x)" forall x.
     break (==x) = breakByte x
   #-}
 }}}
 I don't think your workaround would really help for the sort of use cases
 that I imagine the rule is intended to help with.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7374#comment:4>
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