[vector] #74: expose the bytearray in primitive vectors

[vector]

#74: expose the bytearray in primitive vectors
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Reporter:  choener      |        Owner:     
    Type:  enhancement  |       Status:  new
Priority:  minor        |    Milestone:     
 Version:               |   Resolution:     
Keywords:               |  
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Comment(by rl):

 Hmm, I'm quite surprised that LLVM doesn't remove the zero offsets. Have
 you tried David's patches in the current GHC head which provide
 information for LLVM's alias analysis? BTW, I found that passing `-O3
 -std-compile-opts` rather than just `-O3` to LLVM sometimes helps
 significantly (for very tedious reasons, `-O3` alone should really be
 sufficient).

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Ticket URL: <http://trac.haskell.org/vector/ticket/74#comment:4>
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