1 | // RUN: %clang_cc1 %s -emit-llvm -o %t.ll -triple=x86_64-apple-darwin10 |
2 | // RUN: FileCheck %s < %t.ll |
3 | // RUN: FileCheck -check-prefix=CHECK-GLOBAL %s < %t.ll |
4 | |
5 | struct A { int a; int b; }; |
6 | struct B { int b; }; |
7 | struct C : B, A { }; |
8 | |
9 | // Zero init. |
10 | namespace ZeroInit { |
11 | // CHECK-GLOBAL: @_ZN8ZeroInit1aE = global i64 -1 |
12 | int A::* a; |
13 | |
14 | // CHECK-GLOBAL: @_ZN8ZeroInit2aaE = global [2 x i64] [i64 -1, i64 -1] |
15 | int A::* aa[2]; |
16 | |
17 | // CHECK-GLOBAL: @_ZN8ZeroInit3aaaE = global [2 x [2 x i64]] {{\[}}[2 x i64] [i64 -1, i64 -1], [2 x i64] [i64 -1, i64 -1]] |
18 | int A::* aaa[2][2]; |
19 | |
20 | // CHECK-GLOBAL: @_ZN8ZeroInit1bE = global i64 -1, |
21 | int A::* b = 0; |
22 | |
23 | // CHECK-GLOBAL: @_ZN8ZeroInit2saE = internal global %struct.anon { i64 -1 } |
24 | struct { |
25 | int A::*a; |
26 | } sa; |
27 | void test_sa() { (void) sa; } // force emission |
28 | |
29 | // CHECK-GLOBAL: @_ZN8ZeroInit3ssaE = internal |
30 | // CHECK-GLOBAL: [2 x i64] [i64 -1, i64 -1] |
31 | struct { |
32 | int A::*aa[2]; |
33 | } ssa[2]; |
34 | void test_ssa() { (void) ssa; } |
35 | |
36 | // CHECK-GLOBAL: @_ZN8ZeroInit2ssE = internal global %struct.anon.1 { %struct.anon.2 { i64 -1 } } |
37 | struct { |
38 | struct { |
39 | int A::*pa; |
40 | } s; |
41 | } ss; |
42 | void test_ss() { (void) ss; } |
43 | |
44 | struct A { |
45 | int A::*a; |
46 | int b; |
47 | }; |
48 | |
49 | struct B { |
50 | A a[10]; |
51 | char c; |
52 | int B::*b; |
53 | }; |
54 | |
55 | struct C : A, B { int j; }; |
56 | // CHECK-GLOBAL: @_ZN8ZeroInit1cE = global {{%.*}} <{ %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::B" { [10 x %"struct.ZeroInit::A"] [%"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }, %"struct.ZeroInit::A" { i64 -1, i32 0 }], i8 0, i64 -1 }, i32 0, [4 x i8] zeroinitializer }>, align 8 |
57 | C c; |
58 | } |
59 | |
60 | // PR5674 |
61 | namespace PR5674 { |
62 | // CHECK-GLOBAL: @_ZN6PR56742pbE = global i64 4 |
63 | int A::*pb = &A::b; |
64 | } |
65 | |
66 | // Casts. |
67 | namespace Casts { |
68 | |
69 | int A::*pa; |
70 | int C::*pc; |
71 | |
72 | void f() { |
73 | // CHECK: store i64 -1, i64* @_ZN5Casts2paE |
74 | pa = 0; |
75 | |
76 | // CHECK-NEXT: [[TMP:%.*]] = load i64, i64* @_ZN5Casts2paE, align 8 |
77 | // CHECK-NEXT: [[ADJ:%.*]] = add nsw i64 [[TMP]], 4 |
78 | // CHECK-NEXT: [[ISNULL:%.*]] = icmp eq i64 [[TMP]], -1 |
79 | // CHECK-NEXT: [[RES:%.*]] = select i1 [[ISNULL]], i64 [[TMP]], i64 [[ADJ]] |
80 | // CHECK-NEXT: store i64 [[RES]], i64* @_ZN5Casts2pcE |
81 | pc = pa; |
82 | |
83 | // CHECK-NEXT: [[TMP:%.*]] = load i64, i64* @_ZN5Casts2pcE, align 8 |
84 | // CHECK-NEXT: [[ADJ:%.*]] = sub nsw i64 [[TMP]], 4 |
85 | // CHECK-NEXT: [[ISNULL:%.*]] = icmp eq i64 [[TMP]], -1 |
86 | // CHECK-NEXT: [[RES:%.*]] = select i1 [[ISNULL]], i64 [[TMP]], i64 [[ADJ]] |
87 | // CHECK-NEXT: store i64 [[RES]], i64* @_ZN5Casts2paE |
88 | pa = static_cast<int A::*>(pc); |
89 | } |
90 | |
91 | } |
92 | |
93 | // Comparisons |
94 | namespace Comparisons { |
95 | void f() { |
96 | int A::*a; |
97 | |
98 | // CHECK: icmp ne i64 {{.*}}, -1 |
99 | if (a) { } |
100 | |
101 | // CHECK: icmp ne i64 {{.*}}, -1 |
102 | if (a != 0) { } |
103 | |
104 | // CHECK: icmp ne i64 -1, {{.*}} |
105 | if (0 != a) { } |
106 | |
107 | // CHECK: icmp eq i64 {{.*}}, -1 |
108 | if (a == 0) { } |
109 | |
110 | // CHECK: icmp eq i64 -1, {{.*}} |
111 | if (0 == a) { } |
112 | } |
113 | } |
114 | |
115 | namespace ValueInit { |
116 | |
117 | struct A { |
118 | int A::*a; |
119 | |
120 | char c; |
121 | |
122 | A(); |
123 | }; |
124 | |
125 | // CHECK-LABEL: define void @_ZN9ValueInit1AC2Ev(%"struct.ValueInit::A"* %this) unnamed_addr |
126 | // CHECK: store i64 -1, i64* |
127 | // CHECK: ret void |
128 | A::A() : a() {} |
129 | |
130 | } |
131 | |
132 | namespace VirtualBases { |
133 | |
134 | struct A { |
135 | char c; |
136 | int A::*i; |
137 | }; |
138 | |
139 | // CHECK-GLOBAL: @_ZN12VirtualBases1bE = global %"struct.VirtualBases::B" { i32 (...)** null, %"struct.VirtualBases::A" { i8 0, i64 -1 } }, align 8 |
140 | struct B : virtual A { }; |
141 | B b; |
142 | |
143 | // CHECK-GLOBAL: @_ZN12VirtualBases1cE = global %"struct.VirtualBases::C" { i32 (...)** null, i64 -1, %"struct.VirtualBases::A" { i8 0, i64 -1 } }, align 8 |
144 | struct C : virtual A { int A::*i; }; |
145 | C c; |
146 | |
147 | // CHECK-GLOBAL: @_ZN12VirtualBases1dE = global %"struct.VirtualBases::D" { %"struct.VirtualBases::C.base" { i32 (...)** null, i64 -1 }, i64 -1, %"struct.VirtualBases::A" { i8 0, i64 -1 } }, align 8 |
148 | struct D : C { int A::*i; }; |
149 | D d; |
150 | |
151 | } |
152 | |
153 | namespace Test1 { |
154 | |
155 | // Don't crash when A contains a bit-field. |
156 | struct A { |
157 | int A::* a; |
158 | int b : 10; |
159 | }; |
160 | A a; |
161 | |
162 | } |
163 | |
164 | namespace BoolPtrToMember { |
165 | struct X { |
166 | bool member; |
167 | }; |
168 | |
169 | // CHECK-LABEL: define dereferenceable({{[0-9]+}}) i8* @_ZN15BoolPtrToMember1fERNS_1XEMS0_b |
170 | bool &f(X &x, bool X::*member) { |
171 | // CHECK: {{bitcast.* to i8\*}} |
172 | // CHECK-NEXT: getelementptr inbounds i8, i8* |
173 | // CHECK-NEXT: ret i8* |
174 | return x.*member; |
175 | } |
176 | } |
177 | |
178 | namespace PR8507 { |
179 | |
180 | struct S; |
181 | void f(S* p, double S::*pm) { |
182 | if (0 < p->*pm) { |
183 | } |
184 | } |
185 | |
186 | } |
187 | |
188 | namespace test4 { |
189 | struct A { int A_i; }; |
190 | struct B : virtual A { int A::*B_p; }; |
191 | struct C : virtual B { int *C_p; }; |
192 | struct D : C { int *D_p; }; |
193 | |
194 | // CHECK-GLOBAL: @_ZN5test41dE = global %"struct.test4::D" { %"struct.test4::C.base" zeroinitializer, i32* null, %"struct.test4::B.base" { i32 (...)** null, i64 -1 }, %"struct.test4::A" zeroinitializer }, align 8 |
195 | D d; |
196 | } |
197 | |
198 | namespace PR11487 { |
199 | union U |
200 | { |
201 | int U::* mptr; |
202 | char x[16]; |
203 | } x; |
204 | // CHECK-GLOBAL: @_ZN7PR114871xE = global %"union.PR11487::U" { i64 -1, [8 x i8] zeroinitializer }, align 8 |
205 | |
206 | } |
207 | |
208 | namespace PR13097 { |
209 | struct X { int x; X(const X&); }; |
210 | struct A { |
211 | int qq; |
212 | X x; |
213 | }; |
214 | A f(); |
215 | X g() { return f().*&A::x; } |
216 | // CHECK-LABEL: define void @_ZN7PR130971gEv |
217 | // CHECK: call void @_ZN7PR130971fEv |
218 | // CHECK-NOT: memcpy |
219 | // CHECK: call void @_ZN7PR130971XC1ERKS0_ |
220 | } |
221 | |
222 | namespace PR21089 { |
223 | struct A { |
224 | bool : 1; |
225 | int A::*x; |
226 | bool y; |
227 | A(); |
228 | }; |
229 | struct B : A { |
230 | }; |
231 | B b; |
232 | // CHECK-GLOBAL: @_ZN7PR210891bE = global %"struct.PR21089::B" { %"struct.PR21089::A.base" <{ i8 0, [7 x i8] zeroinitializer, i64 -1, i8 0 }>, [7 x i8] zeroinitializer }, align 8 |
233 | } |
234 | |
235 | namespace PR21282 { |
236 | union U { |
237 | int U::*x; |
238 | long y[2]; |
239 | }; |
240 | U u; |
241 | // CHECK-GLOBAL: @_ZN7PR212821uE = global %"union.PR21282::U" { i64 -1, [8 x i8] zeroinitializer }, align 8 |
242 | } |
243 | |
244 | namespace FlexibleArrayMember { |
245 | struct S { |
246 | int S::*x[]; |
247 | }; |
248 | S s; |
249 | // CHECK-GLOBAL: @_ZN19FlexibleArrayMember1sE = global %"struct.FlexibleArrayMember::S" zeroinitializer, align 8 |
250 | } |
251 | |
252 | namespace IndirectPDM { |
253 | union U { |
254 | union { |
255 | int U::*m; |
256 | }; |
257 | }; |
258 | U u; |
259 | // CHECK-GLOBAL: @_ZN11IndirectPDM1uE = global %"union.IndirectPDM::U" { %union.anon { i64 -1 } }, align 8 |
260 | } |
261 | |