sksl/shared/TemporaryIndexLookup.sksl

uniform half4 colorGreen, colorRed;
uniform float3x3 testMatrix3x3;

noinline float3x3 GetTestMatrix() {
    return testMatrix3x3;
}

half4 main(float2 coords) {
    float expected = 0.0;
    for (int i=0; i<3; ++i) {
        for (int j=0; j<3; ++j) {
            expected += 1.0;
            if (GetTestMatrix()[i][j] != expected) {
                return colorRed;
            }
        }
    }

    return colorGreen;
}