1; RUN: not llc -mtriple thumbv6m-arm-none-eabi -frame-pointer=all %s -o - 2>&1 | FileCheck %s --check-prefix=CHECK-ERROR
2
3; CHECK-ERROR: error: write to reserved register 'R7'
4define void @test_framepointer_output(i32 %input) {
5entry:
6  %0 = call i32 asm sideeffect "mov $0, $1", "={r7},r"(i32 %input)
7  ret void
8}
9
10; CHECK-ERROR: error: write to reserved register 'R7'
11define void @test_framepointer_input(i32 %input) {
12entry:
13  %0 = call i32 asm sideeffect "mov $0, $1", "=r,{r7}"(i32 %input)
14  ret void
15}
16
17; CHECK-ERROR: error: write to reserved register 'PC'
18define void @test_pc_output(i32 %input) {
19entry:
20  %0 = call i32 asm sideeffect "mov $0, $1", "={pc},r"(i32 %input)
21  ret void
22}
23
24; CHECK-ERROR: error: write to reserved register 'PC'
25define void @test_pc_input(i32 %input) {
26entry:
27  %0 = call i32 asm sideeffect "mov $0, $1", "=r,{pc}"(i32 %input)
28  ret void
29}
30
31; CHECK-ERROR: error: write to reserved register 'R6'
32define void @test_basepointer_output(i32 %size, i32 %input) alignstack(8) {
33entry:
34  %vla = alloca i32, i32 %size, align 4
35  %0 = call i32 asm sideeffect "mov $0, $1", "={r6},r"(i32 %input)
36  ret void
37}
38
39; CHECK-ERROR: error: write to reserved register 'R6'
40define void @test_basepointer_input(i32 %size, i32 %input) alignstack(8) {
41entry:
42  %vla = alloca i32, i32 %size, align 4
43  %0 = call i32 asm sideeffect "mov $0, $1", "=r,{r6}"(i32 %input)
44  ret void
45}
46