July 01, 2013
  Branch: refs/heads/dmd-1.x
  Home:   https://github.com/D-Programming-Language/dmd
  Commit: 357b4997ed1d23c8e9fa61f1e0cc4a71567c3bd1
      https://github.com/D-Programming-Language/dmd/commit/357b4997ed1d23c8e9fa61f1e0cc4a71567c3bd1
  Author: Daniel Murphy <yebblies@gmail.com>
  Date:   2013-07-01 (Mon, 01 Jul 2013)

  Changed paths:
    M src/backend/cod4.c

  Log Message:
  -----------
  Merge pull request #2273 from WalterBright/use-movzx

use MOVZX more for 64 bit code