[GHC] #9577: String literals are wasting space

[GHC]

#9577: String literals are wasting space
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              Reporter:  xnyhps      |            Owner:  xnyhps
                  Type:  bug         |           Status:  new
              Priority:  low         |        Milestone:
             Component:  Compiler    |          Version:  7.8.2
  (NCG)                              |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:  Runtime     |  Related Tickets:
  performance bug                    |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Comment (by tibbe):

 Replying to [comment:8 simonmar]:
 > Any `memcpy` of a string will not be a statically known size.
 Furthermore, for small strings I think the space we save by not aligning
 them outweighs any benefit from aligned memcpy.

 Why not? With OverloadedLists we now desugar list literals (which are
 really no different than string literals, conceptually) to `fromListN`, so
 code that creates e.g. a `ByteString` from a list literal can be
 implemented with a memcpy that has its argument statically known.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9577#comment:9>
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