uniform float2x2 testMatrix2x2;
uniform half4 colorGreen, colorRed;

half4 main(float2 coords) {
    const float4 constVal = float4(-1, 0, 1, 2);
    const int4 expectedA = int4(-0x40800000, 0x00000000, 0x3F800000, 0x40000000);

    float4 inputVal = float4(testMatrix2x2) * float4(1, 1, -1, -1);
    const int4 expectedB = int4(0x3F800000, 0x40000000, -0x3FC00000, -0x3F800000);

    return (floatBitsToInt(constVal.x)    == expectedA.x    &&
            floatBitsToInt(constVal.xy)   == expectedA.xy   &&
            floatBitsToInt(constVal.xyz)  == expectedA.xyz  &&
            floatBitsToInt(constVal.xyzw) == expectedA.xyzw &&
            floatBitsToInt(inputVal.x)    == expectedB.x    &&
            floatBitsToInt(inputVal.xy)   == expectedB.xy   &&
            floatBitsToInt(inputVal.xyz)  == expectedB.xyz  &&
            floatBitsToInt(inputVal.xyzw) == expectedB.xyzw) ? colorGreen : colorRed;
}