#5779: SPECIALISE pragma generates wrong activations
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  Reporter:  rl                       |          Owner:                  
      Type:  bug                      |         Status:  new             
  Priority:  normal                   |      Milestone:                  
 Component:  Compiler                 |        Version:  7.5             
Resolution:                           |       Keywords:                  
        Os:  Unknown/Multiple         |   Architecture:  Unknown/Multiple
   Failure:  Runtime performance bug  |     Difficulty:  Unknown         
  Testcase:                           |      Blockedby:                  
  Blocking:                           |        Related:                  
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Comment(by simonpj@…):

 commit 6acf6cd7a8156b40979321ff94fe836736b46175
 {{{
 Author: Simon Peyton Jones <[email protected]>
 Date:   Tue Jan 17 16:01:16 2012 +0000

     Warn when a SPECIALISE pragma gives rise to a totally inactive rule
     See Trac #5779

  compiler/deSugar/DsBinds.lhs   |   62
 ++++++++++++++++++++++++---------------
  compiler/typecheck/TcBinds.lhs |    3 +-
  2 files changed, 40 insertions(+), 25 deletions(-)
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5779#comment:9>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler

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