;; NOTE: Assertions have been generated by update_lit_checks.py --output=fuzz-exec and should not be edited.

;; RUN: wasm-opt %s -all --fuzz-exec -q -o /dev/null 2>&1 | filecheck %s

(module
  ;; CHECK:      [fuzz-exec] calling null-local
  ;; CHECK-NEXT: [fuzz-exec] note result: null-local => 1
  (func $null-local (export "null-local") (result i32)
    (local $ref (ref null i31))
    (ref.is_null
      (local.get $ref)
    )
  )

  ;; CHECK:      [fuzz-exec] calling null-immediate
  ;; CHECK-NEXT: [fuzz-exec] note result: null-immediate => 1
  (func $null-immediate (export "null-immediate") (result i32)
    (ref.is_null
      (ref.null i31)
    )
  )

  ;; CHECK:      [fuzz-exec] calling non-null
  ;; CHECK-NEXT: [fuzz-exec] note result: non-null => 0
  (func $non-null (export "non-null") (result i32)
    (ref.is_null
      (ref.i31
        (i32.const 1234)
      )
    )
  )

  ;; CHECK:      [fuzz-exec] calling nn-u
  ;; CHECK-NEXT: [fuzz-exec] note result: nn-u => 2147483647
  (func $nn-u (export "nn-u") (result i32)
    (i31.get_u
      (ref.i31
        (i32.const 0xffffffff)
      )
    )
  )

  ;; CHECK:      [fuzz-exec] calling nn-s
  ;; CHECK-NEXT: [fuzz-exec] note result: nn-s => -1
  (func $nn-s (export "nn-s") (result i32)
    (i31.get_s
      (ref.i31
        (i32.const 0xffffffff)
      )
    )
  )

  ;; CHECK:      [fuzz-exec] calling zero-is-not-null
  ;; CHECK-NEXT: [fuzz-exec] note result: zero-is-not-null => 0
  (func $zero-is-not-null (export "zero-is-not-null") (result i32)
    (local $ref (ref null i31))
    (local.set $ref
      (ref.i31
        (i32.const 0)
      )
    )
    (i32.add ;; 0 + 0 is 0
      (ref.is_null
        (local.get $ref)
      )
      (i31.get_u ;; this should not trap on null
        (local.get $ref)
      )
    )
  )

  ;; CHECK:      [fuzz-exec] calling trap
  ;; CHECK-NEXT: [trap null ref]
  (func $trap (export "trap") (result i32)
    (i31.get_u
      (ref.null i31)
    )
  )

  ;; CHECK:      [fuzz-exec] calling return-i31
  ;; CHECK-NEXT: [fuzz-exec] note result: return-i31 => i31ref(42)
  (func $return-i31 (export "return-i31") (result i31ref)
    ;; An i31 should be logged out using its integer value, unlike a struct or
    ;; array which ends up as only "object".
    (ref.i31
      (i32.const 42)
    )
  )

  ;; CHECK:      [fuzz-exec] calling return-exted-i31
  ;; CHECK-NEXT: [fuzz-exec] note result: return-exted-i31 => i31ref(42)
  (func $return-exted-i31 (export "return-exted-i31") (result externref)
    ;; Even an externalized i31 is logged out using its integer value.
    (extern.externalize
      (ref.i31
        (i32.const 42)
      )
    )
  )
)
;; CHECK:      [fuzz-exec] calling null-local
;; CHECK-NEXT: [fuzz-exec] note result: null-local => 1

;; CHECK:      [fuzz-exec] calling null-immediate
;; CHECK-NEXT: [fuzz-exec] note result: null-immediate => 1

;; CHECK:      [fuzz-exec] calling non-null
;; CHECK-NEXT: [fuzz-exec] note result: non-null => 0

;; CHECK:      [fuzz-exec] calling nn-u
;; CHECK-NEXT: [fuzz-exec] note result: nn-u => 2147483647

;; CHECK:      [fuzz-exec] calling nn-s
;; CHECK-NEXT: [fuzz-exec] note result: nn-s => -1

;; CHECK:      [fuzz-exec] calling zero-is-not-null
;; CHECK-NEXT: [fuzz-exec] note result: zero-is-not-null => 0

;; CHECK:      [fuzz-exec] calling trap
;; CHECK-NEXT: [trap null ref]

;; CHECK:      [fuzz-exec] calling return-i31
;; CHECK-NEXT: [fuzz-exec] note result: return-i31 => i31ref(42)

;; CHECK:      [fuzz-exec] calling return-exted-i31
;; CHECK-NEXT: [fuzz-exec] note result: return-exted-i31 => i31ref(42)
;; CHECK-NEXT: [fuzz-exec] comparing nn-s
;; CHECK-NEXT: [fuzz-exec] comparing nn-u
;; CHECK-NEXT: [fuzz-exec] comparing non-null
;; CHECK-NEXT: [fuzz-exec] comparing null-immediate
;; CHECK-NEXT: [fuzz-exec] comparing null-local
;; CHECK-NEXT: [fuzz-exec] comparing return-exted-i31
;; CHECK-NEXT: [fuzz-exec] comparing return-i31
;; CHECK-NEXT: [fuzz-exec] comparing trap
;; CHECK-NEXT: [fuzz-exec] comparing zero-is-not-null