// call reflect.(*rtype).Method.
		usemethod(n)
	}
	if n.Op() == ir.OCALLINTER {
		reflectdata.MarkUsedIfaceMethod(n)
	}

	if n.Op() == ir.OCALLFUNC && n.Fun.Op() == ir.OCLOSURE {
		directClosureCall(n)
	}

	if ir.IsFuncPCIntrinsic(n) {
		// For internal/abi.FuncPCABIxxx(fn), if fn is a defined function, rewrite
		// it to the address of the function of the ABI fn is defined.