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;; NOTE: Assertions have been generated by update_lit_checks.py --all-items and should not be edited.
;; RUN: foreach %s %t wasm-opt --simplify-globals -all -S -o - | filecheck %s
(module
;; CHECK: (type $0 (func))
;; CHECK: (global $global (mut i32) (i32.const 0))
(global $global (mut i32) (i32.const 0))
;; CHECK: (func $test (type $0)
;; CHECK-NEXT: (global.set $global
;; CHECK-NEXT: (i32.const 10)
;; CHECK-NEXT: )
;; CHECK-NEXT: (if
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: (then
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (i32.const 10)
;; CHECK-NEXT: )
;; CHECK-NEXT: (call $test)
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (global.get $global)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (else
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (global.get $global)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $test
(global.set $global
(i32.const 10)
)
(if
(i32.const 0)
(then
(block
;; This is dominated by the set, so we can apply 10 here.
(drop
(global.get $global)
)
(call $test)
;; This is after a call, so we do nothing (we are still dominated by the
;; global.set, but the call might set the global to another value).
(drop
(global.get $global)
)
)
)
;; This is dominated by the set, but we do not optimize it yet. TODO
(else
(drop
(global.get $global)
)
)
)
)
)
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