January 09, 2012
  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/dmd
  Commit: 2553e0c3ea1ce938850ca64ae7cf29a937f96f30
      https://github.com/D-Programming-Language/dmd/commit/2553e0c3ea1ce938850ca64ae7cf29a937f96f30
  Author: Walter Bright <walter at walterbright.com>
  Date:   2012-01-09 (Mon, 09 Jan 2012)

  Changed paths:
    M src/backend/cgreg.c
  M src/backend/cgxmm.c
  M src/backend/cod2.c
  M src/backend/cod4.c
  M src/glue.c
  M src/mtype.c
  M src/mtype.h

  Log Message:
  -----------
  more vector support



January 09, 2012
Am 09.01.2012, 11:42 Uhr, schrieb GitHub <noreply at github.com>:

>   Branch: refs/heads/master
>   Home:   https://github.com/D-Programming-Language/dmd
>   Commit: 2553e0c3ea1ce938850ca64ae7cf29a937f96f30
>       https://github.com/D-Programming-Language/dmd/commit/2553e0c3ea1ce938850ca64ae7cf29a937f96f30
>   Author: Walter Bright <walter at walterbright.com>
>   Date:   2012-01-09 (Mon, 09 Jan 2012)
>
>   Changed paths:
>     M src/backend/cgreg.c
>   M src/backend/cgxmm.c
>   M src/backend/cod2.c
>   M src/backend/cod4.c
>   M src/glue.c
>   M src/mtype.c
>   M src/mtype.h
>
>   Log Message:
>   -----------
>   more vector support
>
>
>

Looking at the commits adding vector types is clearly the right to do. Though it will be very tempting to create platform specific code.