[require]
GLSL >= 1.20

[vertex shader]
void main()
{
	gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
}

[fragment shader]
void main()
{
    const mat2 m = mat2(1.0, 2.0, 4.0,  8.0);
    const mat2 mt = transpose(m);
    const mat2 mtt = transpose(mt);
    if (m == mat2(1.0, 4.0, 2.0, 8.0) && mt == mtt)
        gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);
    else
        gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);
}

[test]
draw rect -1 -1 2 2
probe all rgb 0 1 0