BUG=swiftshader:3

Change-Id: I114384fc0e25ee1f7874f726b85ef5bcaf01ed36
Reviewed-on: https://swiftshader-review.googlesource.com/6951Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>