test/lit/passes/remove-unused-brs-exact-only.wast

;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.

;; RUN: wasm-opt %s -all  --remove-unused-brs -S -o - | filecheck %s

;; Like "remove-unused-brs-exact.wast", but with exact types in the input so we
;; cannot have a NO_CD mode.

(module
  ;; CHECK:      (type $foo (struct))
  (type $foo (struct))

  ;; CHECK:      (func $br_on_cast_to_non_null (type $1) (param $foo (ref null $foo)) (result (ref (exact $foo)))
  ;; CHECK-NEXT:  (block $block (result (ref (exact $foo)))
  ;; CHECK-NEXT:   (drop
  ;; CHECK-NEXT:    (block (result nullref)
  ;; CHECK-NEXT:     (br_on_non_null $block
  ;; CHECK-NEXT:      (ref.cast (ref null (exact $foo))
  ;; CHECK-NEXT:       (local.get $foo)
  ;; CHECK-NEXT:      )
  ;; CHECK-NEXT:     )
  ;; CHECK-NEXT:     (ref.null none)
  ;; CHECK-NEXT:    )
  ;; CHECK-NEXT:   )
  ;; CHECK-NEXT:   (unreachable)
  ;; CHECK-NEXT:  )
  ;; CHECK-NEXT: )
  (func $br_on_cast_to_non_null (param $foo (ref null $foo)) (result (ref (exact $foo)))
    ;; We can simplify the br_on_cast to a br_on_non_null plus a cast.
    (block $block (result (ref (exact $foo)))
     (drop
        (br_on_cast $block (ref null $foo) (ref (exact $foo))
          (local.get $foo)
        )
      )
      (unreachable)
    )
  )
)