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
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
|
// RUN: %clang_cc1 -triple arm64-apple-ios11 -std=c++11 -fcxx-exceptions -fexceptions -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple arm64-apple-ios11 -std=c++11 -fcxx-exceptions -fexceptions -fclang-abi-compat=4.0 -emit-llvm -o - %s | FileCheck %s
// CHECK: %[[STRUCT_SMALL:.*]] = type { ptr }
// CHECK: %[[STRUCT_LARGE:.*]] = type { ptr, [128 x i32] }
// CHECK: %[[STRUCT_TRIVIAL:.*]] = type { i32 }
// CHECK: %[[STRUCT_NONTRIVIAL:.*]] = type { i32 }
struct __attribute__((trivial_abi)) Small {
int *p;
Small();
~Small();
Small(const Small &) noexcept;
Small &operator=(const Small &);
};
struct __attribute__((trivial_abi)) Large {
int *p;
int a[128];
Large();
~Large();
Large(const Large &) noexcept;
Large &operator=(const Large &);
};
struct Trivial {
int a;
};
struct NonTrivial {
NonTrivial();
~NonTrivial();
int a;
};
struct HasTrivial {
Small s;
Trivial m;
};
struct HasNonTrivial {
Small s;
NonTrivial m;
};
struct B0 {
virtual Small m0();
};
struct B1 {
virtual Small m0();
};
struct D0 : B0, B1 {
Small m0() override;
};
// CHECK-LABEL: define{{.*}} i64 @_ZThn8_N2D02m0Ev(
// CHECK: %[[RETVAL:.*]] = alloca %[[STRUCT_SMALL]], align 8
// CHECK: %[[CALL:.*]] = tail call i64 @_ZN2D02m0Ev(
// CHECK: %[[COERCE_DIVE:.*]] = getelementptr inbounds nuw %[[STRUCT_SMALL]], ptr %[[RETVAL]], i32 0, i32 0
// CHECK: %[[COERCE_VAL_IP:.*]] = inttoptr i64 %[[CALL]] to ptr
// CHECK: store ptr %[[COERCE_VAL_IP]], ptr %[[COERCE_DIVE]], align 8
// CHECK: %[[COERCE_DIVE2:.*]] = getelementptr inbounds nuw %[[STRUCT_SMALL]], ptr %[[RETVAL]], i32 0, i32 0
// CHECK: %[[V3:.*]] = load ptr, ptr %[[COERCE_DIVE2]], align 8
// CHECK: %[[COERCE_VAL_PI:.*]] = ptrtoint ptr %[[V3]] to i64
// CHECK: ret i64 %[[COERCE_VAL_PI]]
Small D0::m0() { return {}; }
// CHECK: define{{.*}} void @_Z14testParamSmall5Small(i64 %[[A_COERCE:.*]])
// CHECK: %[[A:.*]] = alloca %[[STRUCT_SMALL]], align 8
// CHECK: %[[COERCE_DIVE:.*]] = getelementptr inbounds nuw %[[STRUCT_SMALL]], ptr %[[A]], i32 0, i32 0
// CHECK: %[[COERCE_VAL_IP:.*]] = inttoptr i64 %[[A_COERCE]] to ptr
// CHECK: store ptr %[[COERCE_VAL_IP]], ptr %[[COERCE_DIVE]], align 8
// CHECK: %[[CALL:.*]] = call noundef ptr @_ZN5SmallD1Ev(ptr {{[^,]*}} %[[A]])
// CHECK: ret void
// CHECK: }
void testParamSmall(Small a) noexcept {
}
// CHECK: define{{.*}} i64 @_Z15testReturnSmallv()
// CHECK: %[[RETVAL:.*]] = alloca %[[STRUCT_SMALL:.*]], align 8
// CHECK: %[[CALL:.*]] = call noundef ptr @_ZN5SmallC1Ev(ptr {{[^,]*}} %[[RETVAL]])
// CHECK: %[[COERCE_DIVE:.*]] = getelementptr inbounds nuw %[[STRUCT_SMALL]], ptr %[[RETVAL]], i32 0, i32 0
// CHECK: %[[V0:.*]] = load ptr, ptr %[[COERCE_DIVE]], align 8
// CHECK: %[[COERCE_VAL_PI:.*]] = ptrtoint ptr %[[V0]] to i64
// CHECK: ret i64 %[[COERCE_VAL_PI]]
// CHECK: }
Small testReturnSmall() {
Small t;
return t;
}
// CHECK: define{{.*}} void @_Z14testCallSmall0v()
// CHECK: %[[T:.*]] = alloca %[[STRUCT_SMALL:.*]], align 8
// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_SMALL]], align 8
// CHECK: %[[CALL:.*]] = call noundef ptr @_ZN5SmallC1Ev(ptr {{[^,]*}} %[[T]])
// CHECK: %[[CALL1:.*]] = call noundef ptr @_ZN5SmallC1ERKS_(ptr {{[^,]*}} %[[AGG_TMP]], ptr noundef nonnull align 8 dereferenceable(8) %[[T]])
// CHECK: %[[COERCE_DIVE:.*]] = getelementptr inbounds nuw %[[STRUCT_SMALL]], ptr %[[AGG_TMP]], i32 0, i32 0
// CHECK: %[[V0:.*]] = load ptr, ptr %[[COERCE_DIVE]], align 8
// CHECK: %[[COERCE_VAL_PI:.*]] = ptrtoint ptr %[[V0]] to i64
// CHECK: call void @_Z14testParamSmall5Small(i64 %[[COERCE_VAL_PI]])
// CHECK: %[[CALL2:.*]] = call noundef ptr @_ZN5SmallD1Ev(ptr {{[^,]*}} %[[T]])
// CHECK: ret void
// CHECK: }
void testCallSmall0() {
Small t;
testParamSmall(t);
}
// CHECK: define{{.*}} void @_Z14testCallSmall1v()
// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_SMALL:.*]], align 8
// CHECK: %[[CALL:.*]] = call i64 @_Z15testReturnSmallv()
// CHECK: %[[COERCE_DIVE:.*]] = getelementptr inbounds nuw %[[STRUCT_SMALL]], ptr %[[AGG_TMP]], i32 0, i32 0
// CHECK: %[[COERCE_VAL_IP:.*]] = inttoptr i64 %[[CALL]] to ptr
// CHECK: store ptr %[[COERCE_VAL_IP]], ptr %[[COERCE_DIVE]], align 8
// CHECK: %[[COERCE_DIVE1:.*]] = getelementptr inbounds nuw %[[STRUCT_SMALL]], ptr %[[AGG_TMP]], i32 0, i32 0
// CHECK: %[[V0:.*]] = load ptr, ptr %[[COERCE_DIVE1]], align 8
// CHECK: %[[COERCE_VAL_PI:.*]] = ptrtoint ptr %[[V0]] to i64
// CHECK: call void @_Z14testParamSmall5Small(i64 %[[COERCE_VAL_PI]])
// CHECK: ret void
// CHECK: }
void testCallSmall1() {
testParamSmall(testReturnSmall());
}
// CHECK: define{{.*}} void @_Z16testIgnoredSmallv()
// CHECK: %[[AGG_TMP_ENSURED:.*]] = alloca %[[STRUCT_SMALL:.*]], align 8
// CHECK: %[[CALL:.*]] = call i64 @_Z15testReturnSmallv()
// CHECK: %[[COERCE_DIVE:.*]] = getelementptr inbounds nuw %[[STRUCT_SMALL]], ptr %[[AGG_TMP_ENSURED]], i32 0, i32 0
// CHECK: %[[COERCE_VAL_IP:.*]] = inttoptr i64 %[[CALL]] to ptr
// CHECK: store ptr %[[COERCE_VAL_IP]], ptr %[[COERCE_DIVE]], align 8
// CHECK: %[[CALL1:.*]] = call noundef ptr @_ZN5SmallD1Ev(ptr {{[^,]*}} %[[AGG_TMP_ENSURED]])
// CHECK: ret void
// CHECK: }
void testIgnoredSmall() {
testReturnSmall();
}
// CHECK: define{{.*}} void @_Z14testParamLarge5Large(ptr noundef %[[A:.*]])
// CHECK: %[[CALL:.*]] = call noundef ptr @_ZN5LargeD1Ev(ptr {{[^,]*}} %[[A]])
// CHECK: ret void
// CHECK: }
void testParamLarge(Large a) noexcept {
}
// CHECK: define{{.*}} void @_Z15testReturnLargev(ptr dead_on_unwind noalias writable sret(%[[STRUCT_LARGE]]) align 8 %[[AGG_RESULT:.*]])
// CHECK: %[[CALL:.*]] = call noundef ptr @_ZN5LargeC1Ev(ptr {{[^,]*}} %[[AGG_RESULT]])
// CHECK: ret void
// CHECK: }
Large testReturnLarge() {
Large t;
return t;
}
// CHECK: define{{.*}} void @_Z14testCallLarge0v()
// CHECK: %[[T:.*]] = alloca %[[STRUCT_LARGE:.*]], align 8
// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_LARGE]], align 8
// CHECK: %[[CALL:.*]] = call noundef ptr @_ZN5LargeC1Ev(ptr {{[^,]*}} %[[T]])
// CHECK: %[[CALL1:.*]] = call noundef ptr @_ZN5LargeC1ERKS_(ptr {{[^,]*}} %[[AGG_TMP]], ptr noundef nonnull align 8 dereferenceable(520) %[[T]])
// CHECK: call void @_Z14testParamLarge5Large(ptr noundef %[[AGG_TMP]])
// CHECK: %[[CALL2:.*]] = call noundef ptr @_ZN5LargeD1Ev(ptr {{[^,]*}} %[[T]])
// CHECK: ret void
// CHECK: }
void testCallLarge0() {
Large t;
testParamLarge(t);
}
// CHECK: define{{.*}} void @_Z14testCallLarge1v()
// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_LARGE:.*]], align 8
// CHECK: call void @_Z15testReturnLargev(ptr dead_on_unwind writable sret(%[[STRUCT_LARGE]]) align 8 %[[AGG_TMP]])
// CHECK: call void @_Z14testParamLarge5Large(ptr noundef %[[AGG_TMP]])
// CHECK: ret void
// CHECK: }
void testCallLarge1() {
testParamLarge(testReturnLarge());
}
// CHECK: define{{.*}} void @_Z16testIgnoredLargev()
// CHECK: %[[AGG_TMP_ENSURED:.*]] = alloca %[[STRUCT_LARGE:.*]], align 8
// CHECK: call void @_Z15testReturnLargev(ptr dead_on_unwind writable sret(%[[STRUCT_LARGE]]) align 8 %[[AGG_TMP_ENSURED]])
// CHECK: %[[CALL:.*]] = call noundef ptr @_ZN5LargeD1Ev(ptr {{[^,]*}} %[[AGG_TMP_ENSURED]])
// CHECK: ret void
// CHECK: }
void testIgnoredLarge() {
testReturnLarge();
}
// CHECK: define{{.*}} i32 @_Z20testReturnHasTrivialv()
// CHECK: %[[RETVAL:.*]] = alloca %[[STRUCT_TRIVIAL:.*]], align 4
// CHECK: %[[COERCE_DIVE:.*]] = getelementptr inbounds nuw %[[STRUCT_TRIVIAL]], ptr %[[RETVAL]], i32 0, i32 0
// CHECK: %[[V0:.*]] = load i32, ptr %[[COERCE_DIVE]], align 4
// CHECK: ret i32 %[[V0]]
// CHECK: }
Trivial testReturnHasTrivial() {
Trivial t;
return t;
}
// CHECK: define{{.*}} void @_Z23testReturnHasNonTrivialv(ptr dead_on_unwind noalias writable sret(%[[STRUCT_NONTRIVIAL:.*]]) align 4 %[[AGG_RESULT:.*]])
// CHECK: %[[CALL:.*]] = call noundef ptr @_ZN10NonTrivialC1Ev(ptr {{[^,]*}} %[[AGG_RESULT]])
// CHECK: ret void
// CHECK: }
NonTrivial testReturnHasNonTrivial() {
NonTrivial t;
return t;
}
// CHECK: define{{.*}} void @_Z18testExceptionSmallv()
// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_SMALL]], align 8
// CHECK: %[[AGG_TMP1:.*]] = alloca %[[STRUCT_SMALL]], align 8
// CHECK: call noundef ptr @_ZN5SmallC1Ev(ptr {{[^,]*}} %[[AGG_TMP]])
// CHECK: invoke noundef ptr @_ZN5SmallC1Ev(ptr {{[^,]*}} %[[AGG_TMP1]])
// CHECK: call void @_Z20calleeExceptionSmall5SmallS_(i64 %{{.*}}, i64 %{{.*}})
// CHECK-NEXT: ret void
// CHECK: landingpad { ptr, i32 }
// CHECK: call noundef ptr @_ZN5SmallD1Ev(ptr {{[^,]*}} %[[AGG_TMP]])
// CHECK: br
// CHECK: resume { ptr, i32 }
void calleeExceptionSmall(Small, Small);
void testExceptionSmall() {
calleeExceptionSmall(Small(), Small());
}
// CHECK: define{{.*}} void @_Z18testExceptionLargev()
// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_LARGE]], align 8
// CHECK: %[[AGG_TMP1:.*]] = alloca %[[STRUCT_LARGE]], align 8
// CHECK: call noundef ptr @_ZN5LargeC1Ev(ptr {{[^,]*}} %[[AGG_TMP]])
// CHECK: invoke noundef ptr @_ZN5LargeC1Ev(ptr {{[^,]*}} %[[AGG_TMP1]])
// CHECK: call void @_Z20calleeExceptionLarge5LargeS_(ptr noundef %[[AGG_TMP]], ptr noundef %[[AGG_TMP1]])
// CHECK-NEXT: ret void
// CHECK: landingpad { ptr, i32 }
// CHECK: call noundef ptr @_ZN5LargeD1Ev(ptr {{[^,]*}} %[[AGG_TMP]])
// CHECK: br
// CHECK: resume { ptr, i32 }
void calleeExceptionLarge(Large, Large);
void testExceptionLarge() {
calleeExceptionLarge(Large(), Large());
}
// CHECK: define void @_ZN7GH930401gEPNS_1SE
// CHECK: [[CALL:%.*]] = call i64 @_ZN7GH930401fEv
// CHECK-NEXT: [[TRUNC:%.*]] = trunc i64 [[CALL]] to i56
// CHECK-NEXT: store i56 [[TRUNC]]
// CHECK-NEXT: ret void
void* operator new(unsigned long, void*);
namespace GH93040 {
struct [[clang::trivial_abi]] S {
char a;
int x;
__attribute((aligned(2))) char y;
S();
} __attribute((packed));
S f();
void g(S* s) { new(s) S(f()); }
struct S2 { [[no_unique_address]] S s; char c;};
static_assert(sizeof(S) == 8 && sizeof(S2) == 8, "");
}
// PR42961
// CHECK: define{{.*}} @"_ZN3$_08__invokeEv"()
// CHECK: %[[RETVAL:.*]] = alloca %[[STRUCT_SMALL]], align 8
// CHECK: %[[COERCE:.*]] = alloca %[[STRUCT_SMALL]], align 8
// CHECK: %[[CALL:.*]] = call{{.*}} @"_ZNK3$_0clEv"
// CHECK: %[[COERCEDIVE:.*]] = getelementptr{{.*}} %[[COERCE]]
// CHECK: %[[COERCEVALIP:.*]] = inttoptr{{.*}} %[[CALL]]
// CHECK: call {{.*}}memcpy{{.*}} %[[RETVAL]]{{.*}} %[[COERCE]]
// CHECK: %[[COERCEDIVE1:.*]] = getelementptr{{.*}} %[[RETVAL]]
// CHECK: %[[TMP:.*]] = load{{.*}} %[[COERCEDIVE1]]
// CHECK: %[[COERCEVALPI:.*]] = ptrtoint{{.*}} %[[TMP]]
// CHECK: ret{{.*}} %[[COERCEVALPI]]
Small (*fp)() = []() -> Small { return Small(); };
|
