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
|
;; RUN: llc -mtriple=aarch64-eabi -mattr=+v8.5a %s -o - | FileCheck %s
declare i32 @g(i32) #5
define i32 @f0(i32 %x) #0 {
entry:
%call = tail call i32 @g(i32 %x) #5
%add = add nsw i32 %call, 1
ret i32 %add
}
;; CHECK-LABEL: f0:
;; CHECK-NOT: bti
;; CHECK-NOT: pacia
;; CHECK-NOT: reta
define i32 @f1(i32 %x) #1 {
entry:
%call = tail call i32 @g(i32 %x) #5
%add = add nsw i32 %call, 1
ret i32 %add
}
;; CHECK-LABEL: f1:
;; CHECK: bti c
;; CHECK-NOT: reta
define i32 @f2(i32 %x) #2 {
entry:
%call = tail call i32 @g(i32 %x) #5
%add = add nsw i32 %call, 1
ret i32 %add
}
;; CHECK-LABEL: f2:
;; CHECK: paciasp
;; CHECK: retaa
define i32 @f3(i32 %x) #3 {
entry:
%call = tail call i32 @g(i32 %x) #5
%add = add nsw i32 %call, 1
ret i32 %add
}
;; CHECK-LABEL: f3:
;; CHECK: pacibsp
;; CHECK: retab
define i32 @f4(i32 %x) #4 {
entry:
ret i32 1
}
;; CHECK-LABEL: f4:
;; CHECK: paciasp
;; CHECK: retaa
define i32 @f5(i32 %x) #5 {
entry:
%call = tail call i32 @g(i32 %x) #5
%add = add nsw i32 %call, 1
ret i32 %add
}
;; CHECK-LABEL: f5:
;; CHECK: paciasp
;; CHECK: retaa
attributes #0 = { nounwind "branch-target-enforcement"="false" "sign-return-address"="none" }
attributes #1 = { nounwind "branch-target-enforcement"="true" "sign-return-address"="none" }
attributes #2 = { nounwind "branch-target-enforcement"="false" "sign-return-address"="non-leaf" "sign-return-address-key"="a_key" }
attributes #3 = { nounwind "branch-target-enforcement"="false" "sign-return-address"="non-leaf" "sign-return-address-key"="b_key" }
attributes #4 = { nounwind "branch-target-enforcement"="false" "sign-return-address"="all" "sign-return-address-key"="a_key" }
attributes #5 = { nounwind }
!llvm.module.flags = !{!0, !1, !2, !3, !4}
!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"branch-target-enforcement", i32 1}
!2 = !{i32 8, !"sign-return-address", i32 1}
!3 = !{i32 8, !"sign-return-address-all", i32 0}
!4 = !{i32 8, !"sign-return-address-with-bkey", i32 0}
|
