Bug 19331817

Change-Id: I00abb7635e7a232891dd158b472c375d931db584
Reviewed-on: https://swiftshader-review.googlesource.com/2362Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>