blob: d3ffdfe444c8bc2fe67adc3a9e60ad78135e7999 (
plain)
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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-gc -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin10 -fobjc-gc -emit-llvm -o - %s | FileCheck %s
/*
Here is a handy command for looking at llvm-gcc's output:
llvm-gcc -m64 -fobjc-gc -emit-llvm -S -o - ivar-layout-64.m | \
grep 'OBJC_CLASS_NAME.* =.*global' | \
sed -e 's#, section.*# ...#' | \
sed -e 's#_[0-9]*"#_NNN#' | \
sort
*/
@interface B @end
@interface A {
struct s0 {
int f0;
int f1;
} f0;
id f1;
__weak B *f2;
int f3 : 5;
struct s1 {
int *f0;
int *f1;
} f4[2][1];
}
@end
@interface C : A
@property int p3;
@end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"C\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\11p\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"!`\00"
@implementation C
@synthesize p3 = _p3;
@end
@interface A()
@property int p0;
@property (assign) __strong id p1;
@property (assign) __weak id p2;
@end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"A\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\11q\10\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"!q\00"
@implementation A
@synthesize p0 = _p0;
@synthesize p1 = _p1;
@synthesize p2 = _p2;
@end
@interface D : A
@property int p3;
@end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"D\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\11p\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"!`\00"
@implementation D
@synthesize p3 = _p3;
@end
typedef unsigned short UInt16;
typedef signed char BOOL;
typedef unsigned int FSCatalogInfoBitmap;
@interface NSFileLocationComponent {
@private
id _specifierOrStandardizedPath;
BOOL _carbonCatalogInfoAndNameAreValid;
FSCatalogInfoBitmap _carbonCatalogInfoMask;
id _name;
id _containerComponent;
id _presentableName;
id _iconAsAttributedString;
}
@end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"NSFileLocationComponent\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\01\14\00"
@implementation NSFileLocationComponent @end
@interface NSObject {
id isa;
}
@end
@interface Foo : NSObject {
id ivar;
unsigned long bitfield :31;
unsigned long bitfield2 :1;
unsigned long bitfield3 :32;
}
@end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"Foo\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\02\10\00"
@implementation Foo @end
// GC layout strings aren't capable of expressing __strong ivars at
// non-word alignments.
struct __attribute__((packed)) PackedStruct {
char c;
__strong id x;
};
@interface Packed : NSObject {
struct PackedStruct _packed;
}
@end
@implementation Packed @end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"Packed\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\01 \00"
// ' ' == 0x20
// Ensure that layout descends into anonymous unions and structs.
// Hilariously, anonymous unions and structs that appear directly as ivars
// are completely ignored by layout.
@interface AnonymousUnion : NSObject {
struct {
union {
id _object;
void *_ptr;
};
} a;
}
@end
@implementation AnonymousUnion @end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"AnonymousUnion\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\02\00"
@interface AnonymousStruct : NSObject {
struct {
struct {
id _object;
__weak id _weakref;
};
} a;
}
@end
@implementation AnonymousStruct @end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"AnonymousStruct\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\02\10\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"!\00"
// '!' == 0x21
|
