#7553: ghc fails to terminate with -O2 or greater
Reporter:  erikd               |          Owner:                  
    Type:  bug                 |         Status:  new             
Priority:  normal              |      Component:  Compiler        
 Version:  7.6.1               |       Keywords:                  
      Os:  Unknown/Multiple    |   Architecture:  Unknown/Multiple
 Failure:  Compile-time crash  |      Blockedby:                  
Blocking:                      |        Related:                  
 GHC 7.6.1 on x86_64-lines from Debian's experimental repo (Debian unstable
 is currently frozen in preparation for the new release and therefore the
 Debian Haskell team is uploading to experimental).

 I have 50 lines of code across two files and then I compile these with -O1
 the compile competes in about 10 seconds. However if I compile it with -O2
 or greater, the compile does not seem to terminate. I've left it for as
 long as 1o minutes and the compile process uses 100% CPU and its memory
 usage seems to grow slowly so that after 10 minutes its using 5% of my
 machine's 8Gig or memory.

Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7553>
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