https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78604
--- Comment #7 from amker at gcc dot gnu.org --- (In reply to Michael Meissner from comment #6) > Unless -ffast-math or -fno-honor-nans is used, you cannot invert < to >=, > because you will get a different result if either operand is a NaN. > However, the basic code for vector compares hasn't changed much since the > early power7 days. I don't know details in power. Though it's vectorized instruction, it has integer inner type. That's why the "<" is converted to ">=" in tree-ifcvt just before vectorizer. Is it safe to transform in this case? Thanks.
