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;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.
;; RUN: wasm-opt %s -all --roundtrip -S -o - | filecheck %s
(module
;; CHECK: (type $none (func))
(type $none (func))
;; CHECK: (func $foo (type $none)
;; CHECK-NEXT: (local $0 (tuple funcref (ref $none)))
;; CHECK-NEXT: (local $1 funcref)
;; CHECK-NEXT: (local.set $0
;; CHECK-NEXT: (block $label$1 (type $1) (result funcref (ref $none))
;; CHECK-NEXT: (tuple.make 2
;; CHECK-NEXT: (ref.null nofunc)
;; CHECK-NEXT: (ref.func $foo)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (block (result funcref)
;; CHECK-NEXT: (local.set $1
;; CHECK-NEXT: (tuple.extract 2 0
;; CHECK-NEXT: (local.get $0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (tuple.extract 2 1
;; CHECK-NEXT: (local.get $0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.get $1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $foo
(tuple.drop 2
;; a tuple type with a non-nullable element, that must be carefully handled
(block $block (result funcref (ref $none))
(tuple.make 2
(ref.null func)
(ref.func $foo)
)
)
)
)
;; CHECK: (func $string_view_casts (type $2) (param $x stringview_wtf8) (param $y stringview_wtf16) (param $z stringview_iter)
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (ref.as_non_null
;; CHECK-NEXT: (local.get $x)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (ref.as_non_null
;; CHECK-NEXT: (local.get $y)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (ref.as_non_null
;; CHECK-NEXT: (local.get $z)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.get $x)
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.get $y)
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.get $z)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $string_view_casts
;; ref.cast of string views is not allowed in binaries: replace with
;; ref.as_non_null, or remove if it is a no-op.
(param $x (ref null stringview_wtf8))
(param $y (ref null stringview_wtf16))
(param $z (ref null stringview_iter))
;; Here we still need a cast to non-null.
(drop
(ref.cast (ref stringview_wtf8)
(local.get $x)
)
)
(drop
(ref.cast (ref stringview_wtf16)
(local.get $y)
)
)
(drop
(ref.cast (ref stringview_iter)
(local.get $z)
)
)
;; Here we do not need the cast.
(drop
(ref.cast (ref null stringview_wtf8)
(local.get $x)
)
)
(drop
(ref.cast (ref null stringview_wtf16)
(local.get $y)
)
)
(drop
(ref.cast (ref null stringview_iter)
(local.get $z)
)
)
)
)
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