[pixel shader fail(sm<6) todo]
uniform half h;

float4 main() : sv_target
{
    return 0;
}

[require]
options: backcompat

[pixel shader todo(sm<4)]
uniform half h;

float4 main() : sv_target
{
    return h;
}

[test]
uniform 0 float 10.0
todo(sm<4) draw quad
probe all rgba (10.0, 10.0, 10.0, 10.0)