define fastcc i64 @tailcaller(i64 %b, %struct.s* byval %a) {
entry:
%tmp2 = getelementptr %struct.s, %struct.s* %a, i32 0, i32 1
define fastcc i64 @tailcaller(i64 %b, %struct.s* byval %a) {
entry:
%tmp2 = getelementptr %struct.s, %struct.s* %a, i32 0, i32 1