[GHC] #709: "Fixup too large" error with -fasm on PowerPC

[GHC]

#709: "Fixup too large" error with -fasm on PowerPC
-------------------------------+--------------------------------------------
    Reporter:  simonmar        |        Owner:                    
        Type:  bug             |       Status:  new               
    Priority:  low             |    Milestone:                    
   Component:  Compiler (NCG)  |      Version:  6.4.1             
    Severity:  minor           |     Keywords:                    
          Os:  Multiple        |   Difficulty:  Difficult (1 week)
Architecture:  powerpc         |  
-------------------------------+--------------------------------------------
The native code generator on PowerPC can sometimes generate code that
 doesn't pass the assembler.  The error is "Fixup too large" from the
 assembler.

 Workaround is to use {{{-fvia-C}}}.

 Wolfgang Thaller says this:  Conditional branches on the PowerPC only have
 16 bits for the displacement. I have been reluctant to fix this so far
 because it means either slowing down all conditional branches or actually
 checking the size of the generated code before deciding what branch
 instructions to use, which I'm afraid would add an additional pass to the
 NCG.

-- 
Ticket URL: <http://cvs.haskell.org/trac/ghc/ticket/709>
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