Bug swiftshader:5

Change-Id: I6aec7237f2db6222702e828a2b9dae1a1a6ac9af
Reviewed-on: https://swiftshader-review.googlesource.com/7191Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>