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;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.
;; RUN: wasm-opt %s --optimize-instructions -all -S -o - \
;; RUN: | filecheck %s
(module
;; CHECK: (type $array (array (mut i8)))
(type $array (array (mut i8)))
;; CHECK: (func $extern.convert_any (type $0) (param $x anyref) (param $y externref)
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (extern.convert_any
;; CHECK-NEXT: (local.get $x)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (ref.as_non_null
;; CHECK-NEXT: (extern.convert_any
;; CHECK-NEXT: (local.get $x)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (any.convert_extern
;; CHECK-NEXT: (local.get $y)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (ref.as_non_null
;; CHECK-NEXT: (any.convert_extern
;; CHECK-NEXT: (local.get $y)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $extern.convert_any (param $x (ref null any)) (param $y (ref null extern))
;; We should not change anything here, and also not hit an internal error.
(drop
(extern.convert_any
(local.get $x)
)
)
;; We can reorder the externalize with the ref.as_non_null, which sometimes
;; helps later optimizations, see below.
(drop
(extern.convert_any
(ref.as_non_null
(local.get $x)
)
)
)
;; As the above two cases, but for internalize.
(drop
(any.convert_extern
(local.get $y)
)
)
(drop
(any.convert_extern
(ref.as_non_null
(local.get $y)
)
)
)
)
;; CHECK: (func $convert.optimize.parent (type $1) (param $ext externref)
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (ref.cast (ref $array)
;; CHECK-NEXT: (any.convert_extern
;; CHECK-NEXT: (local.get $ext)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $convert.optimize.parent (param $ext externref)
;; The ref.cast can fold in the ref.as_non_null, after it is moved
;; outside of the any.convert_extern.
(drop
(ref.cast (ref null $array)
(any.convert_extern
(ref.as_non_null
(local.get $ext)
)
)
)
)
)
;; CHECK: (func $extern.intern (type $3) (param $ext externref) (param $any anyref)
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.get $any)
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.get $ext)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $extern.intern (param $ext externref) (param $any anyref)
;; Internalize/externalize operations cancel out.
(drop
(any.convert_extern
(extern.convert_any
(local.get $any)
)
)
)
(drop
(extern.convert_any
(any.convert_extern
(local.get $ext)
)
)
)
)
)
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