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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 --propagate-globals-globally -all -S -o - | filecheck %s
;; RUN: foreach %s %t wasm-opt --simplify-globals -all -S -o - | filecheck %s --check-prefix SIMGB
;; Check that propagate-globals-globally propagates constants globally but not
;; to code. Also run simplify-globals for comparison, which does do that.
(module
;; CHECK: (type $struct (struct (field stringref) (field stringref)))
;; SIMGB: (type $struct (struct (field stringref) (field stringref)))
(type $struct (struct stringref stringref))
;; CHECK: (type $1 (func))
;; CHECK: (global $A i32 (i32.const 42))
;; SIMGB: (type $1 (func))
;; SIMGB: (global $A i32 (i32.const 42))
(global $A i32 (i32.const 42))
;; CHECK: (global $B i32 (i32.const 42))
;; SIMGB: (global $B i32 (i32.const 42))
(global $B i32 (global.get $A))
;; CHECK: (global $C i32 (i32.add
;; CHECK-NEXT: (i32.const 42)
;; CHECK-NEXT: (i32.const 42)
;; CHECK-NEXT: ))
;; SIMGB: (global $C i32 (i32.add
;; SIMGB-NEXT: (i32.const 42)
;; SIMGB-NEXT: (i32.const 42)
;; SIMGB-NEXT: ))
(global $C i32 (i32.add
;; Both of these can be optimized, including $B which reads from $A.
(global.get $B)
(global.get $A)
))
;; CHECK: (global $D (ref string) (string.const "foo"))
;; SIMGB: (global $D (ref string) (string.const "foo"))
(global $D (ref string) (string.const "foo"))
;; CHECK: (global $E (ref string) (string.const "bar"))
;; SIMGB: (global $E (ref string) (string.const "bar"))
(global $E (ref string) (string.const "bar"))
;; CHECK: (global $G (ref $struct) (struct.new $struct
;; CHECK-NEXT: (string.const "foo")
;; CHECK-NEXT: (string.const "bar")
;; CHECK-NEXT: ))
;; SIMGB: (global $G (ref $struct) (struct.new $struct
;; SIMGB-NEXT: (string.const "foo")
;; SIMGB-NEXT: (string.const "bar")
;; SIMGB-NEXT: ))
(global $G (ref $struct) (struct.new $struct
(global.get $D)
(global.get $E)
))
;; CHECK: (func $test (type $1)
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (global.get $A)
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (global.get $B)
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (global.get $C)
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (global.get $D)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; SIMGB: (func $test (type $1)
;; SIMGB-NEXT: (drop
;; SIMGB-NEXT: (i32.const 42)
;; SIMGB-NEXT: )
;; SIMGB-NEXT: (drop
;; SIMGB-NEXT: (i32.const 42)
;; SIMGB-NEXT: )
;; SIMGB-NEXT: (drop
;; SIMGB-NEXT: (global.get $C)
;; SIMGB-NEXT: )
;; SIMGB-NEXT: (drop
;; SIMGB-NEXT: (string.const "foo")
;; SIMGB-NEXT: )
;; SIMGB-NEXT: )
(func $test
;; We should not change anything here: this pass propagates globals
;; *globally*, and not to functions. (but simplify-globals does, except for
;; $C which is not constant)
(drop
(global.get $A)
)
(drop
(global.get $B)
)
(drop
(global.get $C)
)
(drop
(global.get $D)
)
)
)
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