Bug swiftshader:94

Change-Id: I4214270b4ee0dad3f13a8e1556ce0c6366bb045b
Reviewed-on: https://swiftshader-review.googlesource.com/16029Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>