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    • Duncan Sands's avatar
      When passing a parameter using the 'byval' mechanism, inline code needs to be used · 6c25ca4f
      Duncan Sands authored
      to perform the copy, which may be of lots of memory [*].  It would be good if the
      fall-back code generated something reasonable, i.e. did the copy in a loop, rather
      than vast numbers of loads and stores.  Add a note about this.  Currently target
      specific code seems to always kick in so this is more of a theoretical issue rather
      than a practical one now that X86 has been fixed.
      [*] It's amazing how often people pass mega-byte long arrays by copy...
      
      llvm-svn: 118275
      6c25ca4f
  12. Nov 04, 2010
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