1; RUN: opt < %s -functionattrs -S | grep readnone
2
3define i32 @a() {
4	%tmp = call i32 @b( )		; <i32> [#uses=1]
5	ret i32 %tmp
6}
7
8define i32 @b() {
9	%tmp = call i32 @a( )		; <i32> [#uses=1]
10	ret i32 %tmp
11}
12