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
|
; RUN: not --crash llc < %s -mtriple=thumb-none-eabi -mcpu=cortex-m4 2>&1 | FileCheck %s --check-prefix=V7M
; RUN: llc < %s -mtriple=thumbv8m.base-none-eabi 2>&1 | FileCheck %s
; V7M: LLVM ERROR: Invalid register name "sp_ns".
define i32 @read_mclass_registers() nounwind {
entry:
; CHECK-LABEL: read_mclass_registers:
; CHECK: mrs r0, apsr
; CHECK: mrs r1, iapsr
; CHECK: mrs r1, eapsr
; CHECK: mrs r1, xpsr
; CHECK: mrs r1, ipsr
; CHECK: mrs r1, epsr
; CHECK: mrs r1, iepsr
; CHECK: mrs r1, msp
; CHECK: mrs r1, psp
; CHECK: mrs r1, primask
; CHECK: mrs r1, control
; CHECK: mrs r1, msplim
; CHECK: mrs r1, psplim
; CHECK: mrs r1, msp_ns
; CHECK: mrs r1, psp_ns
; CHECK: mrs r1, primask_ns
; CHECK: mrs r1, control_ns
; CHECK: mrs r1, sp_ns
%0 = call i32 @llvm.read_register.i32(metadata !0)
%1 = call i32 @llvm.read_register.i32(metadata !4)
%add1 = add i32 %1, %0
%2 = call i32 @llvm.read_register.i32(metadata !8)
%add2 = add i32 %add1, %2
%3 = call i32 @llvm.read_register.i32(metadata !12)
%add3 = add i32 %add2, %3
%4 = call i32 @llvm.read_register.i32(metadata !16)
%add4 = add i32 %add3, %4
%5 = call i32 @llvm.read_register.i32(metadata !17)
%add5 = add i32 %add4, %5
%6 = call i32 @llvm.read_register.i32(metadata !18)
%add6 = add i32 %add5, %6
%7 = call i32 @llvm.read_register.i32(metadata !19)
%add7 = add i32 %add6, %7
%8 = call i32 @llvm.read_register.i32(metadata !20)
%add8 = add i32 %add7, %8
%9 = call i32 @llvm.read_register.i32(metadata !21)
%add9 = add i32 %add8, %9
%10 = call i32 @llvm.read_register.i32(metadata !25)
%add10 = add i32 %add9, %10
%11 = call i32 @llvm.read_register.i32(metadata !26)
%add11 = add i32 %add10, %11
%12 = call i32 @llvm.read_register.i32(metadata !27)
%add12 = add i32 %add11, %12
%13 = call i32 @llvm.read_register.i32(metadata !28)
%add13 = add i32 %add12, %13
%14 = call i32 @llvm.read_register.i32(metadata !29)
%add14 = add i32 %add13, %14
%15 = call i32 @llvm.read_register.i32(metadata !32)
%add15 = add i32 %add14, %15
%16 = call i32 @llvm.read_register.i32(metadata !35)
%add16 = add i32 %add15, %16
%17 = call i32 @llvm.read_register.i32(metadata !36)
%add17 = add i32 %add16, %17
ret i32 %add10
}
define void @write_mclass_registers(i32 %x) nounwind {
entry:
; CHECK-LABEL: write_mclass_registers:
; CHECK: msr apsr, r0
; CHECK: msr apsr, r0
; CHECK: msr iapsr, r0
; CHECK: msr iapsr, r0
; CHECK: msr eapsr, r0
; CHECK: msr eapsr, r0
; CHECK: msr xpsr, r0
; CHECK: msr xpsr, r0
; CHECK: msr ipsr, r0
; CHECK: msr epsr, r0
; CHECK: msr iepsr, r0
; CHECK: msr msp, r0
; CHECK: msr psp, r0
; CHECK: msr primask, r0
; CHECK: msr control, r0
; CHECK: msr msplim, r0
; CHECK: msr psplim, r0
; CHECK: msr msp_ns, r0
; CHECK: msr psp_ns, r0
; CHECK: msr primask_ns, r0
; CHECK: msr control_ns, r0
; CHECK: msr sp_ns, r0
call void @llvm.write_register.i32(metadata !0, i32 %x)
call void @llvm.write_register.i32(metadata !1, i32 %x)
call void @llvm.write_register.i32(metadata !4, i32 %x)
call void @llvm.write_register.i32(metadata !5, i32 %x)
call void @llvm.write_register.i32(metadata !8, i32 %x)
call void @llvm.write_register.i32(metadata !9, i32 %x)
call void @llvm.write_register.i32(metadata !12, i32 %x)
call void @llvm.write_register.i32(metadata !13, i32 %x)
call void @llvm.write_register.i32(metadata !16, i32 %x)
call void @llvm.write_register.i32(metadata !17, i32 %x)
call void @llvm.write_register.i32(metadata !18, i32 %x)
call void @llvm.write_register.i32(metadata !19, i32 %x)
call void @llvm.write_register.i32(metadata !20, i32 %x)
call void @llvm.write_register.i32(metadata !21, i32 %x)
call void @llvm.write_register.i32(metadata !25, i32 %x)
call void @llvm.write_register.i32(metadata !26, i32 %x)
call void @llvm.write_register.i32(metadata !27, i32 %x)
call void @llvm.write_register.i32(metadata !28, i32 %x)
call void @llvm.write_register.i32(metadata !29, i32 %x)
call void @llvm.write_register.i32(metadata !32, i32 %x)
call void @llvm.write_register.i32(metadata !35, i32 %x)
call void @llvm.write_register.i32(metadata !36, i32 %x)
ret void
}
declare i32 @llvm.read_register.i32(metadata) nounwind
declare void @llvm.write_register.i32(metadata, i32) nounwind
!0 = !{!"apsr"}
!1 = !{!"apsr_nzcvq"}
!4 = !{!"iapsr"}
!5 = !{!"iapsr_nzcvq"}
!8 = !{!"eapsr"}
!9 = !{!"eapsr_nzcvq"}
!12 = !{!"xpsr"}
!13 = !{!"xpsr_nzcvq"}
!16 = !{!"ipsr"}
!17 = !{!"epsr"}
!18 = !{!"iepsr"}
!19 = !{!"msp"}
!20 = !{!"psp"}
!21 = !{!"primask"}
!25 = !{!"control"}
!26 = !{!"msplim"}
!27 = !{!"psplim"}
!28 = !{!"msp_ns"}
!29 = !{!"psp_ns"}
!32 = !{!"primask_ns"}
!35 = !{!"control_ns"}
!36 = !{!"sp_ns"}
|
