[GHC] #4914: FPU initialization required again

GHC cvs-ghc at haskell.org
Fri Mar 25 16:00:51 CET 2011


#4914: FPU initialization required again
---------------------------------+------------------------------------------
    Reporter:  aruiz             |        Owner:  simonmar                   
        Type:  bug               |       Status:  new                        
    Priority:  high              |    Milestone:  7.2.1                      
   Component:  Compiler (NCG)    |      Version:  7.0.1                      
    Keywords:                    |     Testcase:                             
   Blockedby:                    |   Difficulty:                             
          Os:  Unknown/Multiple  |     Blocking:                             
Architecture:  x86               |      Failure:  Incorrect result at runtime
---------------------------------+------------------------------------------

Comment(by simonmar):

 I wasn't able to reproduce it with `bug.hs` either.  '''However''', I have
 instrumented the RTS with calls to check the FPU stack all over the place,
 and one of them randomly triggers in my stage2 compiler while compiling
 hmatrix.  So there is definitely something wrong, but whether I can catch
 it happening is another matter.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4914#comment:16>
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