blob: 3053c59f02026cb74aeb36ec32f60b09a4dde893 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
;; NOTE: Assertions have been generated by update_lit_checks.py --all-items and should not be edited.
;; Test that global effects let us optimize more in a pass like simplify-locals.
;; RUN: foreach %s %t wasm-opt --simplify-locals -S -o - | filecheck %s --check-prefix NORMAL_EFFECTS
;; RUN: foreach %s %t wasm-opt --generate-global-effects --simplify-locals -S -o - | filecheck %s --check-prefix GLOBAL_EFFECTS
(module
;; NORMAL_EFFECTS: (type $0 (func))
;; NORMAL_EFFECTS: (global $global (mut i32) (i32.const 0))
;; GLOBAL_EFFECTS: (type $0 (func))
;; GLOBAL_EFFECTS: (global $global (mut i32) (i32.const 0))
(global $global (mut i32) (i32.const 0))
;; NORMAL_EFFECTS: (func $past-get
;; NORMAL_EFFECTS-NEXT: (local $x i32)
;; NORMAL_EFFECTS-NEXT: (local.set $x
;; NORMAL_EFFECTS-NEXT: (global.get $global)
;; NORMAL_EFFECTS-NEXT: )
;; NORMAL_EFFECTS-NEXT: (call $get-global)
;; NORMAL_EFFECTS-NEXT: (drop
;; NORMAL_EFFECTS-NEXT: (local.get $x)
;; NORMAL_EFFECTS-NEXT: )
;; NORMAL_EFFECTS-NEXT: )
;; GLOBAL_EFFECTS: (func $past-get
;; GLOBAL_EFFECTS-NEXT: (local $x i32)
;; GLOBAL_EFFECTS-NEXT: (nop)
;; GLOBAL_EFFECTS-NEXT: (call $get-global)
;; GLOBAL_EFFECTS-NEXT: (drop
;; GLOBAL_EFFECTS-NEXT: (global.get $global)
;; GLOBAL_EFFECTS-NEXT: )
;; GLOBAL_EFFECTS-NEXT: )
(func $past-get
(local $x i32)
;; We can move this set past the call (when we have global effects), since
;; the call only reads the global.
(local.set $x
(global.get $global)
)
(call $get-global)
(drop
(local.get $x)
)
)
;; NORMAL_EFFECTS: (func $past-set
;; NORMAL_EFFECTS-NEXT: (local $x i32)
;; NORMAL_EFFECTS-NEXT: (local.set $x
;; NORMAL_EFFECTS-NEXT: (global.get $global)
;; NORMAL_EFFECTS-NEXT: )
;; NORMAL_EFFECTS-NEXT: (call $set-global)
;; NORMAL_EFFECTS-NEXT: (drop
;; NORMAL_EFFECTS-NEXT: (local.get $x)
;; NORMAL_EFFECTS-NEXT: )
;; NORMAL_EFFECTS-NEXT: )
;; GLOBAL_EFFECTS: (func $past-set
;; GLOBAL_EFFECTS-NEXT: (local $x i32)
;; GLOBAL_EFFECTS-NEXT: (local.set $x
;; GLOBAL_EFFECTS-NEXT: (global.get $global)
;; GLOBAL_EFFECTS-NEXT: )
;; GLOBAL_EFFECTS-NEXT: (call $set-global)
;; GLOBAL_EFFECTS-NEXT: (drop
;; GLOBAL_EFFECTS-NEXT: (local.get $x)
;; GLOBAL_EFFECTS-NEXT: )
;; GLOBAL_EFFECTS-NEXT: )
(func $past-set
(local $x i32)
;; We cannot move this set past the call, since the call writes the global.
(local.set $x
(global.get $global)
)
(call $set-global)
(drop
(local.get $x)
)
)
;; NORMAL_EFFECTS: (func $set-global
;; NORMAL_EFFECTS-NEXT: (global.set $global
;; NORMAL_EFFECTS-NEXT: (i32.const 1)
;; NORMAL_EFFECTS-NEXT: )
;; NORMAL_EFFECTS-NEXT: )
;; GLOBAL_EFFECTS: (func $set-global
;; GLOBAL_EFFECTS-NEXT: (global.set $global
;; GLOBAL_EFFECTS-NEXT: (i32.const 1)
;; GLOBAL_EFFECTS-NEXT: )
;; GLOBAL_EFFECTS-NEXT: )
(func $set-global
;; Helper function.
(global.set $global
(i32.const 1)
)
)
;; NORMAL_EFFECTS: (func $get-global
;; NORMAL_EFFECTS-NEXT: (drop
;; NORMAL_EFFECTS-NEXT: (global.get $global)
;; NORMAL_EFFECTS-NEXT: )
;; NORMAL_EFFECTS-NEXT: )
;; GLOBAL_EFFECTS: (func $get-global
;; GLOBAL_EFFECTS-NEXT: (drop
;; GLOBAL_EFFECTS-NEXT: (global.get $global)
;; GLOBAL_EFFECTS-NEXT: )
;; GLOBAL_EFFECTS-NEXT: )
(func $get-global
;; Helper function.
(drop
(global.get $global)
)
)
)
|
