spv.viewportArray2.perVertex.noext.tesc
ERROR: 0:8: 'gl_ViewportIndex' : required extension not requested: GL_NV_viewport_array2
ERROR: 0:9: 'gl_Layer' : required extension not requested: GL_NV_viewport_array2
ERROR: 2 compilation errors.  No code generated.


SPIR-V is not generated for failed compile or link