* optimizations in tcg8086.g_copyvaluepara_openarray:
  - when elesize=2, avoid the SHR CX,1 instruction
  - use rep movsw even for odd elesizes, unless cs_opt_size is set



git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25829 3ad0048d-3df7-0310-abae-a5850022a9f2