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;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.
;; RUN: wasm-opt %s --optimize-casts --enable-reference-types --enable-gc --enable-tail-call -S -o - | filecheck %s
(module
;; CHECK: (type $A (struct))
(type $A (struct))
;; CHECK: (func $yes-past-call (type $1) (param $x (ref struct))
;; CHECK-NEXT: (local $1 (ref $A))
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.tee $1
;; CHECK-NEXT: (ref.cast (ref $A)
;; CHECK-NEXT: (local.get $x)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (call $none)
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.get $1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $yes-past-call (param $x (ref struct))
(drop
(ref.cast (ref $A)
(local.get $x)
)
)
;; The call in the middle does not stop us from helping the last get, since
;; EH is not enabled. The last get will flip from $x to a new tee of the
;; cast.
(call $none)
(drop
(local.get $x)
)
)
;; CHECK: (func $yes-past-return_call (type $1) (param $x (ref struct))
;; CHECK-NEXT: (local $1 (ref $A))
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.tee $1
;; CHECK-NEXT: (ref.cast (ref $A)
;; CHECK-NEXT: (local.get $x)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (return_call $none)
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.get $1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $yes-past-return_call (param $x (ref struct))
(drop
(ref.cast (ref $A)
(local.get $x)
)
)
;; The call_return in the middle does not stop us from optimizing, since
;; after we branch out it doesn't matter what we have below.
(return_call $none)
(drop
(local.get $x)
)
)
;; CHECK: (func $none (type $2)
;; CHECK-NEXT: (nop)
;; CHECK-NEXT: )
(func $none
;; Helper for the above.
)
)
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