forked from llvm/clangir
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathcomdat-any.ll
136 lines (105 loc) · 3.08 KB
/
comdat-any.ll
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
; RUN: rm -rf %t && split-file %s %t
; RUN: llvm-link -S %t/1.ll %t/1-aux.ll -o - | FileCheck %s
; RUN: llvm-link -S %t/2.ll %t/2-aux.ll -o - | FileCheck %s --check-prefix=CHECK2
;; A private linkage variable can be copied.
; RUN: llvm-link -S %t/3.ll %t/3-aux.ll -o - | FileCheck %s --check-prefix=CHECK3
;--- 1.ll
; CHECK: @foo = global i8 0, comdat
; CHECK: define void @zed() {
; CHECK: call void @bar()
; CHECK: ret void
; CHECK: }
; CHECK: declare void @bar()
$foo = comdat any
@foo = global i8 0, comdat
;--- 1-aux.ll
$foo = comdat any
@foo = global i8 1, comdat
define void @zed() {
call void @bar()
ret void
}
define void @bar() comdat($foo) {
ret void
}
;--- 2.ll
$c1 = comdat any
@v1 = weak_odr global i32 42, comdat($c1)
define weak_odr i32 @f1(ptr) comdat($c1) {
bb10:
br label %bb11
bb11:
ret i32 42
}
@r11 = global ptr @v1
@r12 = global ptr @f1
@a11 = alias i32, ptr @v1
@a12 = alias i16, ptr @v1
@a13 = alias i32 (ptr), ptr @f1
@a14 = alias i16, ptr @f1
@a15 = alias i16, ptr @a14
; CHECK2: $c1 = comdat any
; CHECK2: $c2 = comdat any
; CHECK2-DAG: @will_be_undefined = external global i32
; CHECK2-DAG: @v1 = weak_odr global i32 42, comdat($c1)
; CHECK2-DAG: @r11 = global ptr @v1{{$}}
; CHECK2-DAG: @r12 = global ptr @f1{{$}}
; CHECK2-DAG: @r21 = global ptr @v1{{$}}
; CHECK2-DAG: @r22 = global ptr @f1{{$}}
; CHECK2-DAG: @v1.1 = internal global i32 41, comdat($c2)
; CHECK2-DAG: @a11 = alias i32, ptr @v1{{$}}
; CHECK2-DAG: @a12 = alias i16, ptr @v1
; CHECK2-DAG: @a13 = alias i32 (ptr), ptr @f1{{$}}
; CHECK2-DAG: @a14 = alias i16, ptr @f1
; CHECK2-DAG: @a21 = alias i32, ptr @v1.1{{$}}
; CHECK2-DAG: @a22 = alias i16, ptr @v1.1
; CHECK2-DAG: @a23 = alias i32 (ptr), ptr @f1.2{{$}}
; CHECK2-DAG: @a24 = alias i16, ptr @f1.2
; CHECK2: define weak_odr protected i32 @f1(ptr %0) comdat($c1) {
; CHECK2-NEXT: bb10:
; CHECK2-NEXT: br label %bb11{{$}}
; CHECK2: bb11:
; CHECK2-NEXT: ret i32 42
; CHECK2-NEXT: }
; CHECK2: define internal i32 @f1.2(ptr %this) comdat($c2) {
; CHECK2-NEXT: bb20:
; CHECK2-NEXT: store ptr %this, ptr null
; CHECK2-NEXT: br label %bb21
; CHECK2: bb21:
; CHECK2-NEXT: ret i32 41
; CHECK2-NEXT: }
;--- 2-aux.ll
$c2 = comdat any
$c1 = comdat any
; This is only present in this file. The linker will keep $c1 from the first
; file and this will be undefined.
@will_be_undefined = global i32 1, comdat($c1)
@use = global ptr @will_be_undefined
@v1 = weak_odr global i32 41, comdat($c2)
define weak_odr protected i32 @f1(ptr %this) comdat($c2) {
bb20:
store ptr %this, ptr null
br label %bb21
bb21:
ret i32 41
}
@r21 = global ptr @v1
@r22 = global ptr @f1
@a21 = alias i32, ptr @v1
@a22 = alias i16, ptr @v1
@a23 = alias i32(ptr), ptr @f1
@a24 = alias i16, ptr @f1
@a25 = alias i16, ptr @a24
;--- 3.ll
; CHECK3: @bar = global i32 0, comdat($a1)
; CHECK3: @baz = private global i32 42, comdat($a1)
; CHECK3: @a1 = internal alias i32, ptr @baz
$a1 = comdat any
@bar = global i32 0, comdat($a1)
;--- 3-aux.ll
$a1 = comdat any
@baz = private global i32 42, comdat($a1)
@a1 = internal alias i32, ptr @baz
define ptr @abc() {
ret ptr @a1
}