cr1 Float Comparison Type for RC bit; Ordered or Unordered?

[terorie]

According to IBM docs,

> If the syntax form sets the Record (Rc) bit to 1, the instruction affects the Floating-Point Exception Summary (FX), Floating-Point Enabled Exception Summary (FEX), Floating-Point Invalid Operation Exception Summary (VX), and Floating-Point Overflow Exception (OX) bits in Condition Register Field 1.

I don't think it does any float comparison at all.