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;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.
;; RUN: wasm-opt %s --remove-unused-names --merge-blocks -all -S -o - \
;; RUN: | filecheck %s
;;
;; --remove-unused-names lets --merge-blocks assume blocks without names have no
;; branch targets.
(module
(type $anyref_=>_none (func (param anyref)))
;; CHECK: (type $struct (struct (field (mut i32))))
(type $struct (struct (field (mut i32))))
;; CHECK: (func $br_on_to_drop
;; CHECK-NEXT: (nop)
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (block $label$1 (result (ref null i31))
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (br_on_i31 $label$1
;; CHECK-NEXT: (ref.null any)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (ref.null i31)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $br_on_to_drop
(nop) ;; ensure a block at the function level
(drop
(block $label$1 (result (ref null i31)) ;; this block type must stay, we
;; cannot remove it due to the br_on
(drop
(br_on_i31 $label$1
(ref.null any)
)
)
(ref.null i31) ;; this must not end up dropped
)
)
)
;; CHECK: (func $struct.set
;; CHECK-NEXT: (nop)
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (i32.const 1234)
;; CHECK-NEXT: )
;; CHECK-NEXT: (struct.set $struct 0
;; CHECK-NEXT: (ref.null $struct)
;; CHECK-NEXT: (i32.const 5)
;; CHECK-NEXT: )
;; CHECK-NEXT: (nop)
;; CHECK-NEXT: )
(func $struct.set
(block
(nop)
(struct.set $struct 0
(block (result (ref null $struct))
(drop (i32.const 1234))
(ref.null $struct)
)
(i32.const 5)
)
(nop)
)
)
;; CHECK: (func $struct.get
;; CHECK-NEXT: (nop)
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (i32.const 1234)
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (struct.get $struct 0
;; CHECK-NEXT: (ref.null $struct)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (nop)
;; CHECK-NEXT: )
(func $struct.get
(block
(nop)
(drop
(struct.get $struct 0
(block (result (ref null $struct))
(drop (i32.const 1234))
(ref.null $struct)
)
)
)
(nop)
)
)
)
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