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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
; RUN: llc < %s -mtriple=aarch64-w64-mingw32 | FileCheck %s
; RUN: llc < %s -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel* \
; RUN: -mtriple=aarch64-w64-mingw32 2>&1| FileCheck %s --check-prefixes=GISEL,FALLBACK
@var = external local_unnamed_addr global i32, align 4
@dsolocalvar = external dso_local local_unnamed_addr global i32, align 4
@localvar = dso_local local_unnamed_addr global i32 0, align 4
@localcommon = common dso_local local_unnamed_addr global i32 0, align 4
@extvar = external dllimport local_unnamed_addr global i32, align 4
define dso_local i32 @getVar() {
; CHECK-LABEL: getVar:
; CHECK: adrp x8, .refptr.var
; CHECK: ldr x8, [x8, .refptr.var]
; CHECK: ldr w0, [x8]
; CHECK: ret
entry:
%0 = load i32, i32* @var, align 4
ret i32 %0
}
define dso_local i32 @getDsoLocalVar() {
; CHECK-LABEL: getDsoLocalVar:
; CHECK: adrp x8, dsolocalvar
; CHECK: ldr w0, [x8, dsolocalvar]
; CHECK: ret
entry:
%0 = load i32, i32* @dsolocalvar, align 4
ret i32 %0
}
define dso_local i32 @getLocalVar() {
; CHECK-LABEL: getLocalVar:
; CHECK: adrp x8, localvar
; CHECK: ldr w0, [x8, localvar]
; CHECK: ret
entry:
%0 = load i32, i32* @localvar, align 4
ret i32 %0
}
define dso_local i32 @getLocalCommon() {
; CHECK-LABEL: getLocalCommon:
; CHECK: adrp x8, localcommon
; CHECK: ldr w0, [x8, localcommon]
; CHECK: ret
entry:
%0 = load i32, i32* @localcommon, align 4
ret i32 %0
}
define dso_local i32 @getExtVar() {
; CHECK-LABEL: getExtVar:
; CHECK: adrp x8, __imp_extvar
; CHECK: ldr x8, [x8, __imp_extvar]
; CHECK: ldr w0, [x8]
; CHECK: ret
entry:
%0 = load i32, i32* @extvar, align 4
ret i32 %0
}
define dso_local void @callFunc() {
; CHECK-LABEL: callFunc:
; CHECK: b otherFunc
entry:
tail call void @otherFunc()
ret void
}
declare dso_local void @otherFunc()
; FALLBACK-NOT: remark:{{.*}}sspFunc
define dso_local void @sspFunc() #0 {
; CHECK-LABEL: sspFunc:
; CHECK: adrp x8, .refptr.__stack_chk_guard
; CHECK: ldr x8, [x8, .refptr.__stack_chk_guard]
; CHECK: ldr x8, [x8]
; GISEL-LABEL: sspFunc:
; GISEL: adrp x8, .refptr.__stack_chk_guard
; GISEL: ldr x8, [x8, .refptr.__stack_chk_guard]
; GISEL: ldr x8, [x8]
entry:
%c = alloca i8, align 1
call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull %c)
call void @ptrUser(i8* nonnull %c)
call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull %c)
ret void
}
declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)
declare dso_local void @ptrUser(i8*) local_unnamed_addr #2
declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture)
attributes #0 = { sspstrong }
; CHECK: .section .rdata$.refptr.__stack_chk_guard,"dr",discard,.refptr.__stack_chk_guard
; CHECK: .globl .refptr.__stack_chk_guard
; CHECK: .refptr.__stack_chk_guard:
; CHECK: .xword __stack_chk_guard
; CHECK: .section .rdata$.refptr.var,"dr",discard,.refptr.var
; CHECK: .globl .refptr.var
; CHECK: .refptr.var:
; CHECK: .xword var
|
