1T(RN,             nan,             nan,          0x0p+0, 0)
2T(RN,             inf,             inf,          0x0p+0, 0)
3T(RN,          0x1p+0,          0x0p+0,          0x0p+0, 0)
4T(RN,     0x1.ffffp-1,             nan,          0x0p+0, INVALID)
5T(RN,          0x0p+0,             nan,          0x0p+0, INVALID)
6T(RN,         -0x0p+0,             nan,          0x0p+0, INVALID)
7T(RN,            -inf,             nan,          0x0p+0, INVALID)
8T(RN,        -0x1p+50,             nan,          0x0p+0, INVALID)
9