1 ; RUN: not --crash llc < %s -mtriple=thumb-none-eabi -mcpu=cortex-m4 2>&1 | FileCheck %s --check-prefix=V7M
2 ; RUN: llc < %s -mtriple=thumbv8m.base-none-eabi 2>&1 | FileCheck %s
4 ; V7M: LLVM ERROR: Invalid register name "sp_ns".
6 define i32 @read_mclass_registers() nounwind {
8 ; CHECK-LABEL: read_mclass_registers:
10 ; CHECK: mrs r1, iapsr
11 ; CHECK: mrs r1, eapsr
15 ; CHECK: mrs r1, iepsr
18 ; CHECK: mrs r1, primask
19 ; CHECK: mrs r1, control
20 ; CHECK: mrs r1, msplim
21 ; CHECK: mrs r1, psplim
22 ; CHECK: mrs r1, msp_ns
23 ; CHECK: mrs r1, psp_ns
24 ; CHECK: mrs r1, primask_ns
25 ; CHECK: mrs r1, control_ns
26 ; CHECK: mrs r1, sp_ns
28 %0 = call i32 @llvm.read_register.i32(metadata !0)
29 %1 = call i32 @llvm.read_register.i32(metadata !4)
30 %add1 = add i32 %1, %0
31 %2 = call i32 @llvm.read_register.i32(metadata !8)
32 %add2 = add i32 %add1, %2
33 %3 = call i32 @llvm.read_register.i32(metadata !12)
34 %add3 = add i32 %add2, %3
35 %4 = call i32 @llvm.read_register.i32(metadata !16)
36 %add4 = add i32 %add3, %4
37 %5 = call i32 @llvm.read_register.i32(metadata !17)
38 %add5 = add i32 %add4, %5
39 %6 = call i32 @llvm.read_register.i32(metadata !18)
40 %add6 = add i32 %add5, %6
41 %7 = call i32 @llvm.read_register.i32(metadata !19)
42 %add7 = add i32 %add6, %7
43 %8 = call i32 @llvm.read_register.i32(metadata !20)
44 %add8 = add i32 %add7, %8
45 %9 = call i32 @llvm.read_register.i32(metadata !21)
46 %add9 = add i32 %add8, %9
47 %10 = call i32 @llvm.read_register.i32(metadata !25)
48 %add10 = add i32 %add9, %10
49 %11 = call i32 @llvm.read_register.i32(metadata !26)
50 %add11 = add i32 %add10, %11
51 %12 = call i32 @llvm.read_register.i32(metadata !27)
52 %add12 = add i32 %add11, %12
53 %13 = call i32 @llvm.read_register.i32(metadata !28)
54 %add13 = add i32 %add12, %13
55 %14 = call i32 @llvm.read_register.i32(metadata !29)
56 %add14 = add i32 %add13, %14
57 %15 = call i32 @llvm.read_register.i32(metadata !32)
58 %add15 = add i32 %add14, %15
59 %16 = call i32 @llvm.read_register.i32(metadata !35)
60 %add16 = add i32 %add15, %16
61 %17 = call i32 @llvm.read_register.i32(metadata !36)
62 %add17 = add i32 %add16, %17
66 define void @write_mclass_registers(i32 %x) nounwind {
68 ; CHECK-LABEL: write_mclass_registers:
71 ; CHECK: msr iapsr, r0
72 ; CHECK: msr iapsr, r0
73 ; CHECK: msr eapsr, r0
74 ; CHECK: msr eapsr, r0
79 ; CHECK: msr iepsr, r0
82 ; CHECK: msr primask, r0
83 ; CHECK: msr control, r0
84 ; CHECK: msr msplim, r0
85 ; CHECK: msr psplim, r0
86 ; CHECK: msr msp_ns, r0
87 ; CHECK: msr psp_ns, r0
88 ; CHECK: msr primask_ns, r0
89 ; CHECK: msr control_ns, r0
90 ; CHECK: msr sp_ns, r0
92 call void @llvm.write_register.i32(metadata !0, i32 %x)
93 call void @llvm.write_register.i32(metadata !1, i32 %x)
94 call void @llvm.write_register.i32(metadata !4, i32 %x)
95 call void @llvm.write_register.i32(metadata !5, i32 %x)
96 call void @llvm.write_register.i32(metadata !8, i32 %x)
97 call void @llvm.write_register.i32(metadata !9, i32 %x)
98 call void @llvm.write_register.i32(metadata !12, i32 %x)
99 call void @llvm.write_register.i32(metadata !13, i32 %x)
100 call void @llvm.write_register.i32(metadata !16, i32 %x)
101 call void @llvm.write_register.i32(metadata !17, i32 %x)
102 call void @llvm.write_register.i32(metadata !18, i32 %x)
103 call void @llvm.write_register.i32(metadata !19, i32 %x)
104 call void @llvm.write_register.i32(metadata !20, i32 %x)
105 call void @llvm.write_register.i32(metadata !21, i32 %x)
106 call void @llvm.write_register.i32(metadata !25, i32 %x)
107 call void @llvm.write_register.i32(metadata !26, i32 %x)
108 call void @llvm.write_register.i32(metadata !27, i32 %x)
109 call void @llvm.write_register.i32(metadata !28, i32 %x)
110 call void @llvm.write_register.i32(metadata !29, i32 %x)
111 call void @llvm.write_register.i32(metadata !32, i32 %x)
112 call void @llvm.write_register.i32(metadata !35, i32 %x)
113 call void @llvm.write_register.i32(metadata !36, i32 %x)
117 declare i32 @llvm.read_register.i32(metadata) nounwind
118 declare void @llvm.write_register.i32(metadata, i32) nounwind
121 !1 = !{!"apsr_nzcvq"}
123 !5 = !{!"iapsr_nzcvq"}
125 !9 = !{!"eapsr_nzcvq"}
127 !13 = !{!"xpsr_nzcvq"}
139 !32 = !{!"primask_ns"}
140 !35 = !{!"control_ns"}