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
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=armv7-linux-gnueabi -relocation-model=static < %s \
; RUN: | FileCheck %s --check-prefix=STATIC
; RUN: llc -mtriple=armv7-linux-gnueabi -relocation-model=pic < %s \
; RUN: | FileCheck %s --check-prefix=PIC
@preemptable_var = dso_preemptable global i32 42
define ptr @get_preemptable_var() nounwind {
; STATIC-LABEL: get_preemptable_var:
; STATIC: @ %bb.0:
; STATIC-NEXT: movw r0, :lower16:preemptable_var
; STATIC-NEXT: movt r0, :upper16:preemptable_var
; STATIC-NEXT: bx lr
;
; PIC-LABEL: get_preemptable_var:
; PIC: @ %bb.0:
; PIC-NEXT: ldr r0, .LCPI0_0
; PIC-NEXT: .LPC0_0:
; PIC-NEXT: ldr r0, [pc, r0]
; PIC-NEXT: bx lr
; PIC-NEXT: .p2align 2
; PIC-NEXT: @ %bb.1:
; PIC-NEXT: .LCPI0_0:
; PIC-NEXT: .Ltmp0:
; PIC-NEXT: .long preemptable_var(GOT_PREL)-(.LPC0_0+8-.Ltmp0)
ret ptr @preemptable_var
}
@dsolocal_var = dso_local global i32 42
define ptr @get_dsolocal_var() nounwind {
; STATIC-LABEL: get_dsolocal_var:
; STATIC: @ %bb.0:
; STATIC-NEXT: movw r0, :lower16:dsolocal_var
; STATIC-NEXT: movt r0, :upper16:dsolocal_var
; STATIC-NEXT: bx lr
;
; PIC-LABEL: get_dsolocal_var:
; PIC: @ %bb.0:
; PIC-NEXT: ldr r0, .LCPI1_0
; PIC-NEXT: .LPC1_0:
; PIC-NEXT: add r0, pc, r0
; PIC-NEXT: bx lr
; PIC-NEXT: .p2align 2
; PIC-NEXT: @ %bb.1:
; PIC-NEXT: .LCPI1_0:
; PIC-NEXT: .long .Ldsolocal_var$local-(.LPC1_0+8)
ret ptr @dsolocal_var
}
@weak_dsolocal_var = weak dso_local global i32 42
define ptr @get_weak_dsolocal_var() nounwind {
; STATIC-LABEL: get_weak_dsolocal_var:
; STATIC: @ %bb.0:
; STATIC-NEXT: movw r0, :lower16:weak_dsolocal_var
; STATIC-NEXT: movt r0, :upper16:weak_dsolocal_var
; STATIC-NEXT: bx lr
;
; PIC-LABEL: get_weak_dsolocal_var:
; PIC: @ %bb.0:
; PIC-NEXT: ldr r0, .LCPI2_0
; PIC-NEXT: .LPC2_0:
; PIC-NEXT: add r0, pc, r0
; PIC-NEXT: bx lr
; PIC-NEXT: .p2align 2
; PIC-NEXT: @ %bb.1:
; PIC-NEXT: .LCPI2_0:
; PIC-NEXT: .long weak_dsolocal_var-(.LPC2_0+8)
ret ptr @weak_dsolocal_var
}
@hidden_var = hidden global i32 42
define ptr @get_hidden_var() nounwind {
; STATIC-LABEL: get_hidden_var:
; STATIC: @ %bb.0:
; STATIC-NEXT: movw r0, :lower16:hidden_var
; STATIC-NEXT: movt r0, :upper16:hidden_var
; STATIC-NEXT: bx lr
;
; PIC-LABEL: get_hidden_var:
; PIC: @ %bb.0:
; PIC-NEXT: ldr r0, .LCPI3_0
; PIC-NEXT: .LPC3_0:
; PIC-NEXT: add r0, pc, r0
; PIC-NEXT: bx lr
; PIC-NEXT: .p2align 2
; PIC-NEXT: @ %bb.1:
; PIC-NEXT: .LCPI3_0:
; PIC-NEXT: .long hidden_var-(.LPC3_0+8)
ret ptr @hidden_var
}
@protected_var = protected global i32 42
define ptr @get_protected_var() nounwind {
; STATIC-LABEL: get_protected_var:
; STATIC: @ %bb.0:
; STATIC-NEXT: movw r0, :lower16:protected_var
; STATIC-NEXT: movt r0, :upper16:protected_var
; STATIC-NEXT: bx lr
;
; PIC-LABEL: get_protected_var:
; PIC: @ %bb.0:
; PIC-NEXT: ldr r0, .LCPI4_0
; PIC-NEXT: .LPC4_0:
; PIC-NEXT: add r0, pc, r0
; PIC-NEXT: bx lr
; PIC-NEXT: .p2align 2
; PIC-NEXT: @ %bb.1:
; PIC-NEXT: .LCPI4_0:
; PIC-NEXT: .long protected_var-(.LPC4_0+8)
ret ptr @protected_var
}
define dso_preemptable ptr @preemptable_func() nounwind {
; STATIC-LABEL: preemptable_func:
; STATIC: @ %bb.0:
; STATIC-NEXT: movw r0, :lower16:preemptable_func
; STATIC-NEXT: movt r0, :upper16:preemptable_func
; STATIC-NEXT: bx lr
;
; PIC-LABEL: preemptable_func:
; PIC: @ %bb.0:
; PIC-NEXT: ldr r0, .LCPI5_0
; PIC-NEXT: .LPC5_0:
; PIC-NEXT: ldr r0, [pc, r0]
; PIC-NEXT: bx lr
; PIC-NEXT: .p2align 2
; PIC-NEXT: @ %bb.1:
; PIC-NEXT: .LCPI5_0:
; PIC-NEXT: .Ltmp1:
; PIC-NEXT: .long preemptable_func(GOT_PREL)-(.LPC5_0+8-.Ltmp1)
ret ptr @preemptable_func
}
define dso_local ptr @dsolocal_func() nounwind {
; STATIC-LABEL: dsolocal_func:
; STATIC: @ %bb.0:
; STATIC-NEXT: movw r0, :lower16:dsolocal_func
; STATIC-NEXT: movt r0, :upper16:dsolocal_func
; STATIC-NEXT: bx lr
;
; PIC-LABEL: dsolocal_func:
; PIC: @ %bb.0:
; PIC-NEXT: ldr r0, .LCPI6_0
; PIC-NEXT: .LPC6_0:
; PIC-NEXT: add r0, pc, r0
; PIC-NEXT: bx lr
; PIC-NEXT: .p2align 2
; PIC-NEXT: @ %bb.1:
; PIC-NEXT: .LCPI6_0:
; PIC-NEXT: .long .Ldsolocal_func$local-(.LPC6_0+8)
ret ptr @dsolocal_func
}
define weak dso_local ptr @weak_dsolocal_func() nounwind {
; STATIC-LABEL: weak_dsolocal_func:
; STATIC: @ %bb.0:
; STATIC-NEXT: movw r0, :lower16:weak_dsolocal_func
; STATIC-NEXT: movt r0, :upper16:weak_dsolocal_func
; STATIC-NEXT: bx lr
;
; PIC-LABEL: weak_dsolocal_func:
; PIC: @ %bb.0:
; PIC-NEXT: ldr r0, .LCPI7_0
; PIC-NEXT: .LPC7_0:
; PIC-NEXT: add r0, pc, r0
; PIC-NEXT: bx lr
; PIC-NEXT: .p2align 2
; PIC-NEXT: @ %bb.1:
; PIC-NEXT: .LCPI7_0:
; PIC-NEXT: .long weak_dsolocal_func-(.LPC7_0+8)
ret ptr @weak_dsolocal_func
}
;; call .Ldsolocal_func$local either resolves to a constant at assembly time
;; or produces a relocation referencing a non-preemptible local symbol.
define dso_local void @call_dsolocal_func() nounwind {
; STATIC-LABEL: call_dsolocal_func:
; STATIC: @ %bb.0:
; STATIC-NEXT: .save {r11, lr}
; STATIC-NEXT: push {r11, lr}
; STATIC-NEXT: bl dsolocal_func
; STATIC-NEXT: pop {r11, pc}
;
; PIC-LABEL: call_dsolocal_func:
; PIC: @ %bb.0:
; PIC-NEXT: .save {r11, lr}
; PIC-NEXT: push {r11, lr}
; PIC-NEXT: bl .Ldsolocal_func$local
; PIC-NEXT: pop {r11, pc}
call ptr @dsolocal_func()
ret void
}
|
