blob: a91bbecf324815dce1e7f117886f30c9b7c77a31 (
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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
; RUN: llc -filetype=obj %s -o %t.o
; RUN: yaml2obj %S/Inputs/globals.yaml -o %t_globals.o
; RUN: wasm-ld -print-gc-sections -o %t1.wasm %t.o %t_globals.o | \
; RUN: FileCheck %s -check-prefix=PRINT-GC
; PRINT-GC: removing unused section {{.*}}:(unused_function)
; PRINT-GC-NOT: removing unused section {{.*}}:(used_function)
; PRINT-GC: removing unused section {{.*}}:(.data.unused_data)
; PRINT-GC-NOT: removing unused section {{.*}}:(.data.used_data)
; PRINT-GC: removing unused section {{.*}}:(unused_global)
; PRINT-GC-NOT: removing unused section {{.*}}:(used_global)
target triple = "wasm32-unknown-unknown"
@unused_data = hidden global i64 1, align 4
@used_data = hidden global i32 2, align 4
define hidden i64 @unused_function(i64 %arg) {
%1 = load i64, i64* @unused_data, align 4
ret i64 %1
}
define hidden i32 @used_function() {
%1 = load i32, i32* @used_data, align 4
ret i32 %1
}
declare i64 @use_global()
define hidden void @_start() {
entry:
call i32 @used_function()
call i64 @use_global()
ret void
}
; RUN: obj2yaml %t1.wasm | FileCheck %s
; CHECK: - Type: TYPE
; CHECK-NEXT: Signatures:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: ParamTypes: []
; CHECK-NEXT: ReturnTypes:
; CHECK-NEXT: - I32
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: ParamTypes: []
; CHECK-NEXT: ReturnTypes: []
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: ParamTypes: []
; CHECK-NEXT: ReturnTypes:
; CHECK-NEXT: - I64
; CHECK-NEXT: - Type: FUNCTION
; CHECK: - Type: GLOBAL
; CHECK-NEXT: Globals:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: true
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 66576
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Type: I64
; CHECK-NEXT: Mutable: true
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I64_CONST
; CHECK-NEXT: Value: 456
; CHECK: - Type: DATA
; CHECK-NEXT: Segments:
; CHECK-NEXT: - SectionOffset: 7
; CHECK-NEXT: InitFlags: 0
; CHECK-NEXT: Offset:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 1024
; CHECK-NEXT: Content: '02000000'
; CHECK-NEXT: - Type: CUSTOM
; CHECK-NEXT: Name: name
; CHECK-NEXT: FunctionNames:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Name: used_function
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Name: _start
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Name: use_global
; CHECK-NEXT: ...
; RUN: wasm-ld -print-gc-sections --no-gc-sections -o %t1.no-gc.wasm \
; RUN: %t.o %t_globals.o
; RUN: obj2yaml %t1.no-gc.wasm | FileCheck %s -check-prefix=NO-GC
; NO-GC: - Type: TYPE
; NO-GC-NEXT: Signatures:
; NO-GC-NEXT: - Index: 0
; NO-GC-NEXT: ParamTypes: []
; NO-GC-NEXT: ReturnTypes: []
; NO-GC-NEXT: - Index: 1
; NO-GC-NEXT: ParamTypes:
; NO-GC-NEXT: - I64
; NO-GC-NEXT: ReturnTypes:
; NO-GC-NEXT: - I64
; NO-GC-NEXT: - Index: 2
; NO-GC-NEXT: ParamTypes: []
; NO-GC-NEXT: ReturnTypes:
; NO-GC-NEXT: - I32
; NO-GC-NEXT: - Index: 3
; NO-GC-NEXT: ParamTypes: []
; NO-GC-NEXT: ReturnTypes:
; NO-GC-NEXT: - I64
; NO-GC-NEXT: - Type: FUNCTION
; NO-GC: - Type: GLOBAL
; NO-GC-NEXT: Globals:
; NO-GC-NEXT: - Index: 0
; NO-GC-NEXT: Type: I32
; NO-GC-NEXT: Mutable: true
; NO-GC-NEXT: InitExpr:
; NO-GC-NEXT: Opcode: I32_CONST
; NO-GC-NEXT: Value: 66576
; NO-GC-NEXT: - Index: 1
; NO-GC-NEXT: Type: I64
; NO-GC-NEXT: Mutable: true
; NO-GC-NEXT: InitExpr:
; NO-GC-NEXT: Opcode: I64_CONST
; NO-GC-NEXT: Value: 123
; NO-GC-NEXT: - Index: 2
; NO-GC-NEXT: Type: I64
; NO-GC-NEXT: Mutable: true
; NO-GC-NEXT: InitExpr:
; NO-GC-NEXT: Opcode: I64_CONST
; NO-GC-NEXT: Value: 456
; NO-GC: - Type: DATA
; NO-GC-NEXT: Segments:
; NO-GC-NEXT: - SectionOffset: 7
; NO-GC-NEXT: InitFlags: 0
; NO-GC-NEXT: Offset:
; NO-GC-NEXT: Opcode: I32_CONST
; NO-GC-NEXT: Value: 1024
; NO-GC-NEXT: Content: '010000000000000002000000'
; NO-GC-NEXT: - Type: CUSTOM
; NO-GC-NEXT: Name: name
; NO-GC-NEXT: FunctionNames:
; NO-GC-NEXT: - Index: 0
; NO-GC-NEXT: Name: __wasm_call_ctors
; NO-GC-NEXT: - Index: 1
; NO-GC-NEXT: Name: unused_function
; NO-GC-NEXT: - Index: 2
; NO-GC-NEXT: Name: used_function
; NO-GC-NEXT: - Index: 3
; NO-GC-NEXT: Name: _start
; NO-GC-NEXT: - Index: 4
; NO-GC-NEXT: Name: use_global
; NO-GC-NEXT: ...
; RUN: not wasm-ld --gc-sections --relocatable -o %t1.no-gc.wasm %t.o 2>&1 | FileCheck %s -check-prefix=CHECK-ERROR
; CHECK-ERROR: error: -r and --gc-sections may not be used together
|
