May 22, 2012
  Branch: refs/heads/dmd-1.x
  Home:   https://github.com/D-Programming-Language/dmd
  Commit: 69634f17f19663c100fd47392b25160c404843eb
      https://github.com/D-Programming-Language/dmd/commit/69634f17f19663c100fd47392b25160c404843eb
  Author: Walter Bright <walter@walterbright.com>
  Date:   2012-05-22 (Tue, 22 May 2012)

  Changed paths:
    M src/backend/cgreg.c
    M src/backend/cod3.c

  Log Message:
  -----------
  fix Issue 6189 - [64bit] optimizer: register content destroyed in function prolog