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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
// RUN: %clang_cc1 -no-opaque-pointers %s -triple=x86_64-apple-darwin10 -std=c++11 -emit-llvm -debug-info-kind=limited -o - | FileCheck %s
class S {
public:
S& operator = (const S&);
S (const S&);
S ();
};
struct CGRect {
CGRect & operator = (const CGRect &);
};
@interface I {
S position;
CGRect bounds;
}
@property(assign, nonatomic) S position;
@property CGRect bounds;
@property CGRect frame;
- (void)setFrame:(CGRect)frameRect;
- (CGRect)frame;
- (void) initWithOwner;
- (CGRect)extent;
- (void)dealloc;
@end
@implementation I
@synthesize position;
@synthesize bounds;
@synthesize frame;
// CHECK: define internal void @"\01-[I setPosition:]"
// CHECK: call noundef nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) %class.S* @_ZN1SaSERKS_
// CHECK-NEXT: ret void
// Don't attach debug locations to the prologue instructions. These were
// leaking over from the previous function emission by accident.
// CHECK: define internal void @"\01-[I setBounds:]"({{.*}} {
// CHECK-NOT: !dbg
// CHECK: call void @llvm.dbg.declare
- (void)setFrame:(CGRect)frameRect {}
- (CGRect)frame {return bounds;}
- (void)initWithOwner {
I* _labelLayer;
CGRect labelLayerFrame = self.bounds;
labelLayerFrame = self.bounds;
_labelLayer.frame = labelLayerFrame;
}
// rdar://8366604
- (void)dealloc
{
CGRect cgrect = self.extent;
}
- (struct CGRect)extent {return bounds;}
@end
// CHECK-LABEL: define{{.*}} i32 @main
// CHECK: call void @_ZN1SC1ERKS_(%class.S* {{[^,]*}} [[AGGTMP:%[a-zA-Z0-9\.]+]], %class.S* noundef nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) {{%[a-zA-Z0-9\.]+}})
// CHECK: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, %class.S*)*)(i8* noundef {{%[a-zA-Z0-9\.]+}}, i8* noundef {{%[a-zA-Z0-9\.]+}}, %class.S* noundef [[AGGTMP]])
// CHECK-NEXT: ret i32 0
int main() {
I *i;
S s1;
i.position = s1;
return 0;
}
// rdar://8379892
// CHECK-LABEL: define{{.*}} void @_Z1fP1A
// CHECK: call void @_ZN1XC1Ev(%struct.X* {{[^,]*}} [[LVTEMP:%[a-zA-Z0-9\.]+]])
// CHECK: call void @_ZN1XC1ERKS_(%struct.X* {{[^,]*}} [[AGGTMP:%[a-zA-Z0-9\.]+]], %struct.X* noundef nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) [[LVTEMP]])
// CHECK: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, %struct.X*)*)({{.*}} %struct.X* noundef [[AGGTMP]])
struct X {
X();
X(const X&);
~X();
};
@interface A {
X xval;
}
- (X)x;
- (void)setX:(X)x;
@end
void f(A* a) {
a.x = X();
}
// rdar://21801088
// Ensure that pseudo-objecet expressions that require the RHS to be
// rewritten don't result in crashes or redundant emission of code.
struct B0 { long long x; };
struct B1 { long long x; }; B1 operator+(B1, B1);
struct B2 { B1 x; };
struct B3 { B3(); B1 x; operator B1(); };
@interface B
@property B0 b0;
@property B1 b1;
@property B2 b2;
@property B3 b3;
@end
int b_makeInt();
// Note that there's a promotion from int to long long, so
// the syntactic form of the RHS will be bogus.
void testB0(B *b) {
b.b0 = { b_makeInt() };
}
void testB1(B *b) {
b.b1 += { b_makeInt() };
}
// CHECK: define{{.*}} void @_Z6testB0P1B([[B:%.*]]*
// CHECK: [[BVAR:%.*]] = alloca [[B]]*, align 8
// CHECK: [[TEMP:%.*]] = alloca [[B0:%.*]], align 8
// CHECK: [[X:%.*]] = getelementptr inbounds [[B0]], [[B0]]* [[TEMP]], i32 0, i32 0
// CHECK-NEXT: [[T0:%.*]] = call noundef i32 @_Z9b_makeIntv()
// CHECK-NEXT: [[T1:%.*]] = sext i32 [[T0]] to i64
// CHECK-NEXT: store i64 [[T1]], i64* [[X]], align 8
// CHECK: load [[B]]*, [[B]]** [[BVAR]]
// CHECK-NOT: call
// CHECK: call void @llvm.memcpy
// CHECK-NOT: call
// CHECK: call void bitcast {{.*}} @objc_msgSend
// CHECK-NOT: call
// CHECK: ret void
// CHECK: define{{.*}} void @_Z6testB1P1B([[B]]*
// CHECK: [[BVAR:%.*]] = alloca [[B]]*, align 8
// CHECK: load [[B]]*, [[B]]** [[BVAR]]
// CHECK-NOT: call
// CHECK: [[T0:%.*]] = call i64 bitcast {{.*}} @objc_msgSend
// CHECK-NOT: call
// CHECK: store i64 [[T0]],
// CHECK-NOT: call
// CHECK: [[T0:%.*]] = call noundef i32 @_Z9b_makeIntv()
// CHECK-NEXT: [[T1:%.*]] = sext i32 [[T0]] to i64
// CHECK-NEXT: store i64 [[T1]], i64* {{.*}}, align 8
// CHECK-NOT: call
// CHECK: [[T0:%.*]] = call i64 @_Zpl2B1S_
// CHECK-NOT: call
// CHECK: store i64 [[T0]],
// CHECK-NOT: call
// CHECK: call void @llvm.memcpy
// CHECK-NOT: call
// CHECK: call void bitcast {{.*}} @objc_msgSend
// CHECK-NOT: call
// CHECK: ret void
// Another example of a conversion that needs to be applied
// in the semantic form.
void testB2(B *b) {
b.b2 = { B3() };
}
// CHECK: define{{.*}} void @_Z6testB2P1B([[B]]*
// CHECK: [[BVAR:%.*]] = alloca [[B]]*, align 8
// CHECK: call void @llvm.dbg.declare(
// CHECK: call void @_ZN2B3C1Ev(
// CHECK-NEXT: [[T0:%.*]] = call i64 @_ZN2B3cv2B1Ev(
// CHECK-NOT: call
// CHECK: store i64 [[T0]],
// CHECK: load [[B]]*, [[B]]** [[BVAR]]
// CHECK-NOT: call
// CHECK: call void @llvm.memcpy
// CHECK-NOT: call
// CHECK: call void bitcast {{.*}} @objc_msgSend
// CHECK-NOT: call
// CHECK: ret void
// A similar test to B, but using overloaded function references.
struct C1 {
int x;
friend C1 operator+(C1, void(&)());
};
@interface C
@property void (*c0)();
@property C1 c1;
@end
void c_helper();
void c_helper(int);
void testC0(C *c) {
c.c0 = c_helper;
c.c0 = &c_helper;
}
// CHECK: define{{.*}} void @_Z6testC0P1C([[C:%.*]]*
// CHECK: [[CVAR:%.*]] = alloca [[C]]*, align 8
// CHECK: load [[C]]*, [[C]]** [[CVAR]]
// CHECK-NOT: call
// CHECK: call void bitcast {{.*}} @objc_msgSend {{.*}} @_Z8c_helperv
// CHECK-NOT: call
// CHECK: call void bitcast {{.*}} @objc_msgSend {{.*}} @_Z8c_helperv
// CHECK-NOT: call
// CHECK: ret void
void testC1(C *c) {
c.c1 += c_helper;
}
// CHECK: define{{.*}} void @_Z6testC1P1C([[C]]*
// CHECK: [[CVAR:%.*]] = alloca [[C]]*, align 8
// CHECK: load [[C]]*, [[C]]** [[CVAR]]
// CHECK-NOT: call
// CHECK: [[T0:%.*]] = call i32 bitcast {{.*}} @objc_msgSend
// CHECK-NOT: call
// CHECK: store i32 [[T0]],
// CHECK-NOT: call
// CHECK: [[T0:%.*]] = call i32 @_Zpl2C1RFvvE({{.*}} @_Z8c_helperv
// CHECK-NOT: call
// CHECK: store i32 [[T0]],
// CHECK-NOT: call
// CHECK: call void @llvm.memcpy
// CHECK-NOT: call
// CHECK: call void bitcast {{.*}} @objc_msgSend
// CHECK-NOT: call
// CHECK: ret void
|
