return true
	}

	return false
}

// Used when sorting the optab. Sorting is
// done in a way so that the best choice of
// opcode/operand combination is considered first.
func optabLess(i, j int) bool {
	p1 := &optab[i]
	p2 := &optab[j]
	n := int(p1.as) - int(p2.as)
	// same opcode
	if n != 0 {
		return n < 0
	}
	// Consider those that generate fewer
	// instructions first.