BUG=18368388

Change-Id: I89038818164e04f9ae4a7e1c4526781654e83c7a
Reviewed-on: https://swiftshader-review.googlesource.com/1390Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>