[pixel shader]
const float4 f1;
const uniform float4 f2;

float4 main() : sv_target
{
    return f1 + f2;
}

[test]
uniform 0 float4 1.0 2.0 3.0 4.0
uniform 4 float4 0.1 0.2 0.3 0.4
todo(glsl) draw quad
probe all rgba (1.1, 2.2, 3.3, 4.4)

[pixel shader fail(sm<6)]
float4 main() : sv_target
{
    const float f;
    return 0;
}