xref: /llvm-project/llvm/test/CodeGen/ARM/sponentry.ll (revision bed1c7f061aa12417aa081e334afdba45767b938)
1; RUN: llc -mtriple=thumbv7-windows-msvc -frame-pointer=all %s -o - | FileCheck %s
2; RUN: llc -mtriple=thumbv7-windows-msvc -fast-isel -frame-pointer=all %s -o - | FileCheck %s
3; RUN: llc -mtriple=thumbv7-windows-msvc %s -o - | FileCheck %s --check-prefix=NOFP
4; RUN: llc -mtriple=thumbv7-windows-msvc -fast-isel %s -o - | FileCheck %s --check-prefix=NOFP
5
6@env2 = common dso_local global ptr null, align 8
7
8define dso_local void @bar() {
9  %1 = call ptr @llvm.sponentry()
10  %2 = load ptr, ptr @env2, align 8
11  %3 = call i32 @_setjmpex(ptr %2, ptr %1) #2
12  ret void
13}
14
15; CHECK: bar:
16; CHECK: push.w  {r11, lr}
17; CHECK: mov     r11, sp
18; CHECK: add.w   r1, r11, #8
19; CHECK: bl      _setjmpex
20
21; NOFP: bar:
22; NOFP: push.w  {r11, lr}
23; NOFP: add     r1, sp, #8
24; NOFP: bl      _setjmpex
25
26define dso_local void @foo(ptr) {
27  %2 = alloca ptr, align 8
28  %3 = alloca i32, align 4
29  %4 = alloca [100 x i32], align 4
30  store ptr %0, ptr %2, align 8
31  %5 = call ptr @llvm.sponentry()
32  %6 = load ptr, ptr %2, align 8
33  %7 = call i32 @_setjmpex(ptr %6, ptr %5)
34  store i32 %7, ptr %3, align 4
35  ret void
36}
37
38; CHECK: foo:
39; CHECK: push.w  {r11, lr}
40; CHECK: mov     r11, sp
41; CHECK: sub     sp, #416
42; CHECK: add.w   r1, r11, #8
43; CHECK: bl      _setjmpex
44
45; NOFP: foo:
46; NOFP: push.w  {r11, lr}
47; NOFP: sub     sp, #416
48; NOFP: add     r1, sp, #424
49; NOFP: bl      _setjmpex
50
51define dso_local void @var_args(ptr, ...) {
52  %2 = alloca ptr, align 8
53  %3 = alloca ptr, align 8
54  store ptr %0, ptr %2, align 8
55  call void @llvm.va_start(ptr %3)
56  %4 = load ptr, ptr %3, align 8
57  %5 = getelementptr inbounds i8, ptr %4, i64 8
58  store ptr %5, ptr %3, align 8
59  %6 = load i32, ptr %4, align 8
60  call void @llvm.va_end(ptr %3)
61  %7 = call ptr @llvm.sponentry()
62  %8 = load ptr, ptr @env2, align 8
63  %9 = call i32 @_setjmpex(ptr %8, ptr %7) #3
64  ret void
65}
66
67; CHECK: var_args:
68; CHECK: sub     sp, #12
69; CHECK: push.w  {r11, lr}
70; CHECK: mov     r11, sp
71; CHECK: add.w   r1, r11, #20
72; CHECK: bl      _setjmpex
73
74; NOFP: var_args:
75; NOFP: sub     sp, #12
76; NOFP: push.w  {r11, lr}
77; NOFP: sub     sp, #12
78; NOFP: add     r1, sp, #32
79; NOFP: bl      _setjmpex
80
81define dso_local void @manyargs(i64 %x1, i64 %x2, i64 %x3, i64 %x4, i64 %x5, i64 %x6, i64 %x7, i64 %x8, i64 %x9, i64 %x10) {
82  %1 = call ptr @llvm.sponentry()
83  %2 = load ptr, ptr @env2, align 8
84  %3 = call i32 @_setjmpex(ptr %2, ptr %1) #2
85  ret void
86}
87
88; CHECK: manyargs:
89; CHECK: push.w  {r11, lr}
90; CHECK: mov     r11, sp
91; CHECK: add.w   r1, r11, #8
92; CHECK: bl      _setjmpex
93
94; NOFP: manyargs:
95; NOFP: push.w  {r11, lr}
96; NOFP: add     r1, sp, #8
97; NOFP: bl      _setjmpex
98
99; Function Attrs: nounwind readnone
100declare ptr @llvm.sponentry()
101
102; Function Attrs: returns_twice
103declare dso_local i32 @_setjmpex(ptr, ptr)
104
105; Function Attrs: nounwind
106declare void @llvm.va_start(ptr) #1
107
108; Function Attrs: nounwind
109declare void @llvm.va_end(ptr) #1
110