[GHC] #10852: ghc 7.8.4 on arm - panic: Simplifier ticks exhausted

[GHC]

#10852: ghc 7.8.4 on arm - panic: Simplifier ticks exhausted
---------------------------------------+------------------------------
        Reporter:  andrewufrank        |                Owner:
            Type:  bug                 |               Status:  new
        Priority:  normal              |            Milestone:
       Component:  Compiler            |              Version:  7.10.2
      Resolution:                      |             Keywords:  arm
Operating System:  Linux               |         Architecture:  arm
 Type of failure:  Compile-time crash  |            Test Case:
      Blocked By:                      |             Blocking:
 Related Tickets:  #5642, #9675        |  Differential Rev(s):
       Wiki Page:                      |
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Comment (by andrewufrank):

 the problem in pureMD5 seems to be in the part

 {{{
 #ifdef FastWordExtract
 getNthWord n b = inlinePerformIO (unsafeUseAsCString b (flip peekElemOff n
 . castPtr))
 #else
 getNthWord :: Int -> B.ByteString -> Word32
 getNthWord n = right . G.runGet G.getWord32le . B.drop (n * sizeOf
 (undefined :: Word32))
   where
   right x = case x of Right y -> y
 #endif
 -- {-# INLINE getNthWord #-}

 }}}
 i have removed the inline pragma and it compiles.

 the armhf is not FastWordExtract (at least not set in the cabal) and thus
 uses code which is typically for the intel processor not used.

 i hope this helps to fix the problem.
 thank you!

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10852#comment:7>
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