[GHC] #7295: bad code for Double literals

[GHC]

#7295: bad code for Double literals
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    Reporter:  jwlato            |       Owner:  igloo           
        Type:  bug               |      Status:  patch           
    Priority:  high              |   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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Comment(by jwlato@…):

 commit 771d376bb6d2ab524741c6d0732718ac2613d2a1
 {{{
 Author: John Lato <jwlato at gmail.com>
 Date:   Mon Oct 8 12:54:55 2012 +0800

     add GHC.Float.rationalToFloat, rationalToDouble (fixes #7295)

     Adds better support for constant folding of Float/Double literals.
       - add rationalToFloat, rationalToDouble with associated Name/Id's in
 PrelNames.
       - add a matching rule in PrelRules for rationalTo* functions.

  compiler/prelude/PrelNames.lhs |   13 +++++++++++++
  compiler/prelude/PrelRules.lhs |   29 +++++++++++++++++++++++++++++
  2 files changed, 42 insertions(+), 0 deletions(-)
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7295#comment:7>
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