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;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.
;; RUN: wasm-opt %s --ignore-implicit-traps --optimize-instructions -all -S -o - \
;; RUN: | filecheck %s
(module
;; CHECK: (type $struct.A (struct (field i32)))
(type $struct.A (struct i32))
;; CHECK: (tag $e (param (ref null $struct.A)))
(tag $e (param (ref null $struct.A)))
;; CHECK: (func $ref-cast-statically-removed (type $2)
;; CHECK-NEXT: (try
;; CHECK-NEXT: (do
;; CHECK-NEXT: (nop)
;; CHECK-NEXT: )
;; CHECK-NEXT: (catch $e
;; CHECK-NEXT: (throw $e
;; CHECK-NEXT: (pop (ref null $struct.A))
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $ref-cast-statically-removed
(try
(do)
(catch $e
(throw $e
;; Because --ignore-implicit-traps is given, this ref.cast null is
;; assumed not to throw so this ref.cast null can be statically removed.
;; But that creates a block around this, making 'pop' nested into it,
;; which is invalid. We fix this up at the end up OptimizeInstruction,
;; assigning the 'pop' to a local at the start of this 'catch' body
;; and later using 'local.get' to get it.
(ref.cast (ref null $struct.A)
(pop (ref null $struct.A))
)
)
)
)
)
)
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