Bug 19331817

Change-Id: I9ea2f823fafa54e598e79181aa39c3626d9dc4e8
Reviewed-on: https://swiftshader-review.googlesource.com/2291Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>