The test rely on NaN payload propagating feature, which is optional on RISC-V. There is no easy way to accommodate this. See: https://bugs.r-project.org/show_bug.cgi?id=18416 (cherry picked from commit ff6bde17d46e7a115cf3802697bcf2bc9e292b6f)
Signed-off-by: He Rengui <herengui@uniontech.com>