type FunctionParam struct {
	Index int
}

func (fp *FunctionParam) print(ps *printState) {
	if fp.Index == 0 {
		ps.writeString("this")
	} else if ps.llvmStyle {
		if fp.Index == 1 {
			ps.writeString("fp")
		} else {
			fmt.Fprintf(&ps.buf, "fp%d", fp.Index-2)
		}
	} else {
		fmt.Fprintf(&ps.buf, "{parm#%d}", fp.Index)
	}
}