[Piglit] [PATCH] Add a piglit test which reproduces an opt_vectorizer bug.

[Matt Turner]

On Tue, Apr 8, 2014 at 5:00 PM, Kenneth Graunke <kenneth at whitecape.org> wrote:
> This reproduces an ir_validator failure in Serious Sam 3 shaders caused
> by the vectorizer pass, which I uncovered while doing unrelated work.
>
> Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
> Cc: Matt Turner <mattst88 at gmail.com>

Reviewed-by: Matt Turner <mattst88 at gmail.com>