[GHC] #5284: Simplifier performance regression (or infinite loop)

[GHC]

#5284: Simplifier performance regression (or infinite loop)
---------------------------------+------------------------------------------
    Reporter:  simonmar          |        Owner:  igloo                       
        Type:  bug               |       Status:  new                         
    Priority:  high              |    Milestone:  7.4.1                       
   Component:  Compiler          |      Version:  7.0.3                       
    Keywords:                    |     Testcase:                              
   Blockedby:                    |   Difficulty:                              
          Os:  Unknown/Multiple  |     Blocking:                              
Architecture:  Unknown/Multiple  |      Failure:  Compile-time performance bug
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Comment(by igloo):

 In 7.2:
 {{{
 commit 9506f95ac32c91a9fa6ce659a4474d6f85e55268
 Author: Ian Lynagh <igloo at earth.li>
 Date:   Sat Jul 23 17:56:40 2011 +0100

     Don't inline most integer operations

     We get lots of code, and the simplifier generally can't do much with
     it. We'll instead use builtin rules to do constant folding where
     possible.
 }}}

 It's changeset:94df30b07c20c0031c1a8cc57ee3479423b963ac in the HEAD.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5284#comment:5>
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