[GHC] #5448: GHC stuck in infinite loop compiling with optimizations

[GHC]

#5448: GHC stuck in infinite loop compiling with optimizations
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        Reporter:  ronwalf           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  ⊥
       Component:  Compiler          |              Version:  7.0.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash                              |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by flip101):

 Seems that the solution is to prevent ghc from getting stuck in a loop.
 Since this is a longstanding bug, i guess it's difficult to fix.
 Alternatively .. could there perhaps be some detection that it's stuck in
 a loop and a message what part of the code is causing it?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5448#comment:9>
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