microsoft/compiler: NIR's fne should be unordered
Apparently WARP doesn't correctly distinguish between ordered and unordered compares, but NIR's definition of comparisons should be ordered for everything except fne, which should be unordered.
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
Apparently WARP doesn't correctly distinguish between ordered and unordered compares, but NIR's definition of comparisons should be ordered for everything except fne, which should be unordered.