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
|
; RUN: llc -mtriple thumbv7-windows -filetype asm -o - %s | FileCheck %s
; ModuleID = 'dllimport.c'
@var = external dllimport global i32
@ext = external global i32
declare dllimport arm_aapcs_vfpcc i32 @external()
declare arm_aapcs_vfpcc i32 @internal()
define arm_aapcs_vfpcc i32 @get_var() {
%1 = load i32* @var, align 4
ret i32 %1
}
; CHECK-LABEL: get_var
; CHECK: movw r0, :lower16:__imp_var
; CHECK: movt r0, :upper16:__imp_var
; CHECK: ldr r0, [r0]
; CHECK: ldr r0, [r0]
; CHECK: bx lr
define arm_aapcs_vfpcc i32 @get_ext() {
%1 = load i32* @ext, align 4
ret i32 %1
}
; CHECK-LABEL: get_ext
; CHECK: movw r0, :lower16:ext
; CHECK: movt r0, :upper16:ext
; CHECK: ldr r0, [r0]
; CHECK: bx lr
define arm_aapcs_vfpcc i32* @get_var_pointer() {
ret i32* @var
}
; CHECK-LABEL: get_var_pointer
; CHECK: movw r0, :lower16:__imp_var
; CHECK: movt r0, :upper16:__imp_var
; CHECK: ldr r0, [r0]
; CHECK: bx lr
define arm_aapcs_vfpcc i32 @call_external() {
%call = tail call arm_aapcs_vfpcc i32 @external()
ret i32 %call
}
; CHECK-LABEL: call_external
; CHECK: movw r0, :lower16:__imp_external
; CHECK: movt r0, :upper16:__imp_external
; CHECK: ldr r0, [r0]
; CHECK: bx r0
define arm_aapcs_vfpcc i32 @call_internal() {
%call = tail call arm_aapcs_vfpcc i32 @internal()
ret i32 %call
}
; CHECK-LABEL: call_internal
; CHECK: b internal
|
