binaryen-sys 0.13.0

Bindings to the binaryen library
Documentation 
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
114
115
116
117
118
119
120
121

;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.
;; RUN: wasm-opt %s --optimize-instructions --enable-multivalue -S -o - | filecheck %s

(module
  ;; CHECK:      (func $if-identical-arms-tuple (param $x i32) (result i32)
  ;; CHECK-NEXT:  (local $tuple (tuple i32 i32))
  ;; CHECK-NEXT:  (local $tuple2 (tuple i32 i32))
  ;; CHECK-NEXT:  (tuple.extract 2 0
  ;; CHECK-NEXT:   (if (type $2) (result i32 i32)
  ;; CHECK-NEXT:    (local.get $x)
  ;; CHECK-NEXT:    (then
  ;; CHECK-NEXT:     (local.get $tuple)
  ;; CHECK-NEXT:    )
  ;; CHECK-NEXT:    (else
  ;; CHECK-NEXT:     (local.get $tuple2)
  ;; CHECK-NEXT:    )
  ;; CHECK-NEXT:   )
  ;; CHECK-NEXT:  )
  ;; CHECK-NEXT: )
  (func $if-identical-arms-tuple (param $x i32) (result i32)
    (local $tuple (tuple i32 i32))
    (local $tuple2 (tuple i32 i32))
    (if (result i32)
      (local.get $x)
      ;; The tuple.extract can be hoisted out.
      (then
        (tuple.extract 2 0
          (local.get $tuple)
        )
      )
      (else
        (tuple.extract 2 0
          (local.get $tuple2)
        )
      )
    )
  )
  ;; CHECK:      (func $select-identical-arms-tuple (param $x i32) (result i32)
  ;; CHECK-NEXT:  (local $tuple (tuple i32 i32))
  ;; CHECK-NEXT:  (local $tuple2 (tuple i32 i32))
  ;; CHECK-NEXT:  (select
  ;; CHECK-NEXT:   (tuple.extract 2 0
  ;; CHECK-NEXT:    (local.get $tuple)
  ;; CHECK-NEXT:   )
  ;; CHECK-NEXT:   (tuple.extract 2 0
  ;; CHECK-NEXT:    (local.get $tuple2)
  ;; CHECK-NEXT:   )
  ;; CHECK-NEXT:   (local.get $x)
  ;; CHECK-NEXT:  )
  ;; CHECK-NEXT: )
  (func $select-identical-arms-tuple (param $x i32) (result i32)
    (local $tuple (tuple i32 i32))
    (local $tuple2 (tuple i32 i32))
    (select
      ;; The tuple.extract cannot be hoisted out, as the spec disallows a
      ;; select with multiple values in its arms.
      (tuple.extract 2 0
        (local.get $tuple)
      )
      (tuple.extract 2 0
        (local.get $tuple2)
      )
      (local.get $x)
    )
  )

  ;; CHECK:      (func $extract-make (param $x i32) (param $y i32) (result i32)
  ;; CHECK-NEXT:  (local $2 i32)
  ;; CHECK-NEXT:  (drop
  ;; CHECK-NEXT:   (local.tee $2
  ;; CHECK-NEXT:    (local.get $x)
  ;; CHECK-NEXT:   )
  ;; CHECK-NEXT:  )
  ;; CHECK-NEXT:  (local.get $2)
  ;; CHECK-NEXT: )
  (func $extract-make (param $x i32) (param $y i32) (result i32)
    ;; An extraction from a make can be simplified to just get the right lane.
    (tuple.extract 2 0
      (tuple.make 2
        (local.get $x)
        (local.get $y)
      )
    )
  )

  ;; CHECK:      (func $extract-make-2 (param $x i32) (param $y i32) (result i32)
  ;; CHECK-NEXT:  (local $2 i32)
  ;; CHECK-NEXT:  (drop
  ;; CHECK-NEXT:   (local.tee $2
  ;; CHECK-NEXT:    (local.get $y)
  ;; CHECK-NEXT:   )
  ;; CHECK-NEXT:  )
  ;; CHECK-NEXT:  (local.get $2)
  ;; CHECK-NEXT: )
  (func $extract-make-2 (param $x i32) (param $y i32) (result i32)
    ;; As above, but the second lane.
    (tuple.extract 2 1
      (tuple.make 2
        (local.get $x)
        (local.get $y)
      )
    )
  )

  ;; CHECK:      (func $extract-make-unreachable (param $x i32) (param $y i32) (result i32)
  ;; CHECK-NEXT:  (tuple.extract 1 0
  ;; CHECK-NEXT:   (tuple.make 2
  ;; CHECK-NEXT:    (unreachable)
  ;; CHECK-NEXT:    (local.get $y)
  ;; CHECK-NEXT:   )
  ;; CHECK-NEXT:  )
  ;; CHECK-NEXT: )
  (func $extract-make-unreachable (param $x i32) (param $y i32) (result i32)
    (tuple.extract 2 0
      (tuple.make 2
        (unreachable) ;; because of this we should do nothing
        (local.get $y)
      )
    )
  )
)