1 | // RUN: %clang_cc1 %s -emit-llvm -o - -triple=x86_64-unknown-unknown | FileCheck -check-prefix CODE-LP64 %s |
2 | // RUN: %clang_cc1 %s -emit-llvm -o - -triple=i386-unknown-unknown | FileCheck -check-prefix CODE-LP32 %s |
3 | // RUN: %clang_cc1 %s -emit-llvm -o - -triple=x86_64-unknown-unknown | FileCheck -check-prefix GLOBAL-LP64 %s |
4 | // RUN: %clang_cc1 %s -emit-llvm -o - -triple=i386-unknown-unknown | FileCheck -check-prefix GLOBAL-LP32 %s |
5 | // RUN: %clang_cc1 %s -emit-llvm -o - -triple=armv7-unknown-unknown | FileCheck -check-prefix GLOBAL-ARM %s |
6 | |
7 | // PNaCl uses the same representation of method pointers as ARM. |
8 | // RUN: %clang_cc1 %s -emit-llvm -o - -triple=le32-unknown-nacl | FileCheck -check-prefix GLOBAL-ARM %s |
9 | // MIPS uses the same representation of method pointers as ARM. |
10 | // RUN: %clang_cc1 %s -emit-llvm -o - -triple=mips-unknown-linux-gnu | FileCheck -check-prefix GLOBAL-ARM %s |
11 | // WebAssembly uses the same representation of method pointers as ARM. |
12 | // RUN: %clang_cc1 %s -emit-llvm -o - -triple=wasm32-unknown-unknown | FileCheck -check-prefix GLOBAL-ARM %s |
13 | |
14 | struct A { int a; void f(); virtual void vf1(); virtual void vf2(); }; |
15 | struct B { int b; virtual void g(); }; |
16 | struct C : B, A { }; |
17 | |
18 | void (A::*pa)(); |
19 | void (A::*volatile vpa)(); |
20 | void (B::*pb)(); |
21 | void (C::*pc)(); |
22 | |
23 | // GLOBAL-LP64: @pa2 = global { i64, i64 } { i64 ptrtoint (void (%struct.A*)* @_ZN1A1fEv to i64), i64 0 }, align 8 |
24 | void (A::*pa2)() = &A::f; |
25 | |
26 | // GLOBAL-LP64: @pa3 = global { i64, i64 } { i64 1, i64 0 }, align 8 |
27 | // GLOBAL-LP32: @pa3 = global { i32, i32 } { i32 1, i32 0 }, align 4 |
28 | void (A::*pa3)() = &A::vf1; |
29 | |
30 | // GLOBAL-LP64: @pa4 = global { i64, i64 } { i64 9, i64 0 }, align 8 |
31 | // GLOBAL-LP32: @pa4 = global { i32, i32 } { i32 5, i32 0 }, align 4 |
32 | void (A::*pa4)() = &A::vf2; |
33 | |
34 | // GLOBAL-LP64: @pc2 = global { i64, i64 } { i64 ptrtoint (void (%struct.A*)* @_ZN1A1fEv to i64), i64 16 }, align 8 |
35 | void (C::*pc2)() = &C::f; |
36 | |
37 | // GLOBAL-LP64: @pc3 = global { i64, i64 } { i64 1, i64 0 }, align 8 |
38 | void (A::*pc3)() = &A::vf1; |
39 | |
40 | void f() { |
41 | // CODE-LP64: store { i64, i64 } zeroinitializer, { i64, i64 }* @pa |
42 | pa = 0; |
43 | |
44 | // Is this okay? What are LLVM's volatile semantics for structs? |
45 | // CODE-LP64: store volatile { i64, i64 } zeroinitializer, { i64, i64 }* @vpa |
46 | vpa = 0; |
47 | |
48 | // CODE-LP64: [[TMP:%.*]] = load { i64, i64 }, { i64, i64 }* @pa, align 8 |
49 | // CODE-LP64: [[TMPADJ:%.*]] = extractvalue { i64, i64 } [[TMP]], 1 |
50 | // CODE-LP64: [[ADJ:%.*]] = add nsw i64 [[TMPADJ]], 16 |
51 | // CODE-LP64: [[RES:%.*]] = insertvalue { i64, i64 } [[TMP]], i64 [[ADJ]], 1 |
52 | // CODE-LP64: store { i64, i64 } [[RES]], { i64, i64 }* @pc, align 8 |
53 | pc = pa; |
54 | |
55 | // CODE-LP64: [[TMP:%.*]] = load { i64, i64 }, { i64, i64 }* @pc, align 8 |
56 | // CODE-LP64: [[TMPADJ:%.*]] = extractvalue { i64, i64 } [[TMP]], 1 |
57 | // CODE-LP64: [[ADJ:%.*]] = sub nsw i64 [[TMPADJ]], 16 |
58 | // CODE-LP64: [[RES:%.*]] = insertvalue { i64, i64 } [[TMP]], i64 [[ADJ]], 1 |
59 | // CODE-LP64: store { i64, i64 } [[RES]], { i64, i64 }* @pa, align 8 |
60 | pa = static_cast<void (A::*)()>(pc); |
61 | } |
62 | |
63 | void f2() { |
64 | // CODE-LP64: store { i64, i64 } { i64 ptrtoint (void (%struct.A*)* @_ZN1A1fEv to i64), i64 0 } |
65 | void (A::*pa2)() = &A::f; |
66 | |
67 | // CODE-LP64: store { i64, i64 } { i64 1, i64 0 } |
68 | // CODE-LP32: store { i32, i32 } { i32 1, i32 0 } |
69 | void (A::*pa3)() = &A::vf1; |
70 | |
71 | // CODE-LP64: store { i64, i64 } { i64 9, i64 0 } |
72 | // CODE-LP32: store { i32, i32 } { i32 5, i32 0 } |
73 | void (A::*pa4)() = &A::vf2; |
74 | } |
75 | |
76 | void f3(A *a, A &ar) { |
77 | (a->*pa)(); |
78 | (ar.*pa)(); |
79 | } |
80 | |
81 | bool f4() { |
82 | return pa; |
83 | } |
84 | |
85 | // PR5177 |
86 | namespace PR5177 { |
87 | struct A { |
88 | bool foo(int*) const; |
89 | } a; |
90 | |
91 | struct B1 { |
92 | bool (A::*pmf)(int*) const; |
93 | const A* pa; |
94 | |
95 | B1() : pmf(&A::foo), pa(&a) {} |
96 | bool operator()() const { return (pa->*pmf)(new int); } |
97 | }; |
98 | |
99 | void bar(B1 b2) { while (b2()) ; } |
100 | } |
101 | |
102 | // PR5138 |
103 | namespace PR5138 { |
104 | struct foo { |
105 | virtual void bar(foo *); |
106 | }; |
107 | |
108 | extern "C" { |
109 | void baz(foo *); |
110 | } |
111 | |
112 | void (foo::*ptr1)(void *) = (void (foo::*)(void *))&foo::bar; |
113 | void (*ptr2)(void *) = (void (*)(void *))&baz; |
114 | |
115 | void (foo::*ptr3)(void) = (void (foo::*)(void))&foo::bar; |
116 | } |
117 | |
118 | // PR5593 |
119 | namespace PR5593 { |
120 | struct A { }; |
121 | |
122 | bool f(void (A::*f)()) { |
123 | return f && f; |
124 | } |
125 | } |
126 | |
127 | namespace PR5718 { |
128 | struct A { }; |
129 | |
130 | bool f(void (A::*f)(), void (A::*g)()) { |
131 | return f == g; |
132 | } |
133 | } |
134 | |
135 | namespace BoolMemberPointer { |
136 | struct A { }; |
137 | |
138 | bool f(void (A::*f)()) { |
139 | return !f; |
140 | } |
141 | |
142 | bool g(void (A::*f)()) { |
143 | if (!!f) |
144 | return true; |
145 | return false; |
146 | } |
147 | } |
148 | |
149 | // PR5940 |
150 | namespace PR5940 { |
151 | class foo { |
152 | public: |
153 | virtual void baz(void); |
154 | }; |
155 | |
156 | void foo::baz(void) { |
157 | void (foo::*ptr)(void) = &foo::baz; |
158 | } |
159 | } |
160 | |
161 | namespace MemberPointerImpCast { |
162 | struct A { |
163 | int x; |
164 | }; |
165 | struct B : public A { |
166 | }; |
167 | void f(B* obj, void (A::*method)()) { |
168 | (obj->*method)(); |
169 | } |
170 | } |
171 | |
172 | // PR6258 |
173 | namespace PR6258 { |
174 | |
175 | struct A { |
176 | void f(bool); |
177 | }; |
178 | |
179 | void (A::*pf)(bool) = &A::f; |
180 | |
181 | void f() { |
182 | void (A::*pf)(bool) = &A::f; |
183 | } |
184 | } |
185 | |
186 | // PR7027 |
187 | namespace PR7027 { |
188 | struct X { void test( ); }; |
189 | void testX() { &X::test; } |
190 | } |
191 | |
192 | namespace test7 { |
193 | struct A { void foo(); virtual void vfoo(); }; |
194 | struct B { void foo(); virtual void vfoo(); }; |
195 | struct C : A, B { void foo(); virtual void vfoo(); }; |
196 | |
197 | // GLOBAL-ARM: @_ZN5test74ptr0E = global {{.*}} { i32 ptrtoint ({{.*}}* @_ZN5test71A3fooEv to i32), i32 0 } |
198 | // GLOBAL-ARM: @_ZN5test74ptr1E = global {{.*}} { i32 ptrtoint ({{.*}}* @_ZN5test71B3fooEv to i32), i32 8 } |
199 | // GLOBAL-ARM: @_ZN5test74ptr2E = global {{.*}} { i32 ptrtoint ({{.*}}* @_ZN5test71C3fooEv to i32), i32 0 } |
200 | // GLOBAL-ARM: @_ZN5test74ptr3E = global {{.*}} { i32 0, i32 1 } |
201 | // GLOBAL-ARM: @_ZN5test74ptr4E = global {{.*}} { i32 0, i32 9 } |
202 | // GLOBAL-ARM: @_ZN5test74ptr5E = global {{.*}} { i32 0, i32 1 } |
203 | void (C::*ptr0)() = &A::foo; |
204 | void (C::*ptr1)() = &B::foo; |
205 | void (C::*ptr2)() = &C::foo; |
206 | void (C::*ptr3)() = &A::vfoo; |
207 | void (C::*ptr4)() = &B::vfoo; |
208 | void (C::*ptr5)() = &C::vfoo; |
209 | } |
210 | |
211 | namespace test8 { |
212 | struct X { }; |
213 | typedef int (X::*pmf)(int); |
214 | |
215 | // CHECK: {{define.*_ZN5test81fEv}} |
216 | pmf f() { |
217 | // CHECK: {{ret.*zeroinitializer}} |
218 | return pmf(); |
219 | } |
220 | } |
221 | |
222 | namespace test9 { |
223 | struct A { |
224 | void foo(); |
225 | }; |
226 | struct B : A { |
227 | void foo(); |
228 | }; |
229 | |
230 | typedef void (A::*fooptr)(); |
231 | |
232 | struct S { |
233 | fooptr p; |
234 | }; |
235 | |
236 | // CODE-LP64-LABEL: define void @_ZN5test94testEv( |
237 | // CODE-LP64: alloca i32 |
238 | // CODE-LP64-NEXT: ret void |
239 | void test() { |
240 | int x; |
241 | static S array[] = { (fooptr) &B::foo }; |
242 | } |
243 | } |
244 | |
245 | // rdar://problem/10815683 - Verify that we can emit reinterprets of |
246 | // member pointers as constant initializers. For added trickiness, |
247 | // we also add some non-trivial adjustments. |
248 | namespace test10 { |
249 | struct A { |
250 | int nonEmpty; |
251 | void foo(); |
252 | }; |
253 | struct B : public A { |
254 | virtual void requireNonZeroAdjustment(); |
255 | }; |
256 | struct C { |
257 | int nonEmpty; |
258 | }; |
259 | struct D : public C { |
260 | virtual void requireNonZeroAdjustment(); |
261 | }; |
262 | |
263 | |
264 | // It's not that the offsets are doubled on ARM, it's that they're left-shifted by 1. |
265 | |
266 | // GLOBAL-LP64: @_ZN6test101aE = global { i64, i64 } { i64 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i64), i64 0 }, align 8 |
267 | // GLOBAL-LP32: @_ZN6test101aE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 0 }, align 4 |
268 | // GLOBAL-ARM: @_ZN6test101aE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 0 }, align 4 |
269 | void (A::*a)() = &A::foo; |
270 | |
271 | // GLOBAL-LP64: @_ZN6test101bE = global { i64, i64 } { i64 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i64), i64 8 }, align 8 |
272 | // GLOBAL-LP32: @_ZN6test101bE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 4 }, align 4 |
273 | // GLOBAL-ARM: @_ZN6test101bE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 8 }, align 4 |
274 | void (B::*b)() = (void (B::*)()) &A::foo; |
275 | |
276 | // GLOBAL-LP64: @_ZN6test101cE = global { i64, i64 } { i64 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i64), i64 8 }, align 8 |
277 | // GLOBAL-LP32: @_ZN6test101cE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 4 }, align 4 |
278 | // GLOBAL-ARM: @_ZN6test101cE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 8 }, align 4 |
279 | void (C::*c)() = (void (C::*)()) (void (B::*)()) &A::foo; |
280 | |
281 | // GLOBAL-LP64: @_ZN6test101dE = global { i64, i64 } { i64 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i64), i64 16 }, align 8 |
282 | // GLOBAL-LP32: @_ZN6test101dE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 8 }, align 4 |
283 | // GLOBAL-ARM: @_ZN6test101dE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 16 }, align 4 |
284 | void (D::*d)() = (void (C::*)()) (void (B::*)()) &A::foo; |
285 | } |
286 | |
287 | namespace test11 { |
288 | struct A { virtual void a(); }; |
289 | struct B : A {}; |
290 | struct C : B { virtual void a(); }; |
291 | void (C::*x)() = &C::a; |
292 | |
293 | // GLOBAL-LP64: @_ZN6test111xE = global { i64, i64 } { i64 1, i64 0 } |
294 | // GLOBAL-LP32: @_ZN6test111xE = global { i32, i32 } { i32 1, i32 0 } |
295 | // GLOBAL-ARM: @_ZN6test111xE = global { i32, i32 } { i32 0, i32 1 } |
296 | } |
297 | |