[GHC] #7996: building GHC HEAD with llvm-3.4(HEAD) fails

[GHC]

#7996: building GHC HEAD with llvm-3.4(HEAD) fails
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Reporter:  carter            |          Owner:                  
    Type:  bug               |         Status:  new             
Priority:  normal            |      Component:  Compiler        
 Version:  7.7               |       Keywords:                  
      Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
 Failure:  None/Unknown      |      Blockedby:                  
Blocking:                    |        Related:                  
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Comment(by thoughtpolice):

 This is happening when the bootstrap compiler is invoked at the beginning
 of the build process. The problem is that GHC 7.6.3 does not have the fix
 from your commit the other week, so it will generate empty metadata
 tripping the assert.

 The long and short of this is that 7.6.3 will support up-to LLVM 3.2
 (except it's kind of broken,) but 7.8 will be fine with 3.3+

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7996#comment:2>
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