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
|
; RUN: llc %s -o - | FileCheck %s --check-prefix=CHECK1
; RUN: llc %s -o - | FileCheck %s --check-prefix=CHECK2
target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "thumbv8.1m.main-arm-unknown-eabi"
@p = hidden local_unnamed_addr global i32 (i32, i32, i32, i32)* null, align 4
define hidden i32 @f(i32 %a, i32 %b, i32 %c, i32 %d) local_unnamed_addr #0 {
entry:
%call = tail call i32 @g(i32 %a) #0
%0 = load i32 (i32, i32, i32, i32)*, i32 (i32, i32, i32, i32)** @p, align 4
%call1 = tail call i32 %0(i32 %call, i32 %b, i32 %c, i32 %d) #0
ret i32 %call1
}
; CHECK1-LABEL: f
; ...
; CHECK1: aut r12, lr, sp
; CHECK1-NOT: bx r12
; CHECK2-LABEL: f
; ...
; CHECK2: blx r4
; CHECK2-NEXT: ldr r12, [sp], #4
; CHECK2-NEXT: pop.w {r4, r5, r6, r7, lr}
; CHECK2-NEXT: aut r12, lr, sp
; CHECK2-NEXT: bx lr
declare dso_local i32 @g(i32) local_unnamed_addr #0
attributes #0 = { nounwind }
!llvm.module.flags = !{!0, !1, !2}
!0 = !{i32 8, !"branch-target-enforcement", i32 0}
!1 = !{i32 8, !"sign-return-address", i32 1}
!2 = !{i32 8, !"sign-return-address-all", i32 0}
|
