func (fc flagConstant) le() bool {
	return fc.Z() || fc.lt()
}
func (fc flagConstant) gt() bool {
	return !fc.Z() && fc.ge()
}
func (fc flagConstant) ge() bool {
	return fc.N() == fc.V()
}
func (fc flagConstant) ult() bool {
	return !fc.C()
}
func (fc flagConstant) ule() bool {
	return fc.Z() || fc.ult()
}
func (fc flagConstant) ugt() bool {
	return !fc.Z() && fc.uge()
}

		// comparisons, but we don't use such a beast yet.
		// This op is for temporary use by rewrite rules. It
		// cannot appear in the generated assembly.
		{name: "FlagConstant", aux: "FlagConstant"},

		// (InvertFlags (CMP a b)) == (CMP b a)
		// InvertFlags is a pseudo-op which can't appear in assembly output.
		{name: "InvertFlags", argLength: 1}, // reverse direction of arg0