return haveIdenticalUnderlyingType(T, V, true)
}

func haveIdenticalType(T, V *abi.Type, cmpTags bool) bool {
	if cmpTags {
		return T == V
	}

	if toRType(T).Name() != toRType(V).Name() || T.Kind() != V.Kind() {
		return false
	}

	return haveIdenticalUnderlyingType(T, V, false)
}

func haveIdenticalUnderlyingType(T, V *abi.Type, cmpTags bool) bool {
	if T == V {

	// x's type T and V must have identical underlying types.
	return haveIdenticalUnderlyingType(T, V, true)
}

func haveIdenticalType(T, V *abi.Type, cmpTags bool) bool {
	if cmpTags {
		return T == V
	}

	if nameFor(T) != nameFor(V) || T.Kind() != V.Kind() || pkgPathFor(T) != pkgPathFor(V) {
		return false
	}

	return haveIdenticalUnderlyingType(T, V, false)
}

		}
	}

	// dst and src have same underlying type.
	if haveIdenticalUnderlyingType(dst, src, false) {
		return cvtDirect
	}

	// dst and src are non-defined pointer types with same underlying base type.
	if dst.Kind() == abi.Pointer && nameFor(dst) == "" &&
		src.Kind() == abi.Pointer && nameFor(src) == "" &&
		haveIdenticalUnderlyingType(elem(dst), elem(src), false) {
		return cvtDirect
	}