(module
 (type $none_=>_none (func))
 ;;@ src.cpp:1:1
 (func $0
  (nop)
  ;;@ src.cpp:2:1
  (block $l0
   ;;@ src.cpp:2:2
   (block $l1
    (br $l1)
   )
  )
  ;;@ src.cpp:3:1
  (return)
  ;;@ src.cpp:3:2
 )
)