1 | // RUN: %clang_cc1 -std=c++14 -triple i686-pc-win32 -fms-extensions -DMSABI -verify %s |
2 | // RUN: %clang_cc1 -std=c++14 -triple i686-pc-mingw32 -verify %s |
3 | // RUN: %clang_cc1 -std=c++14 -triple i686-pc-mingw32 -fms-extensions -verify %s |
4 | |
5 | typedef void void_fun_t(); |
6 | typedef void __cdecl cdecl_fun_t(); |
7 | |
8 | // Pointers to free functions |
9 | void free_func_default(); // expected-note 2 {{previous declaration is here}} |
10 | void __cdecl free_func_cdecl(); // expected-note 2 {{previous declaration is here}} |
11 | void __stdcall free_func_stdcall(); // expected-note 2 {{previous declaration is here}} |
12 | void __fastcall free_func_fastcall(); // expected-note 2 {{previous declaration is here}} |
13 | void __vectorcall free_func_vectorcall(); // expected-note 2 {{previous declaration is here}} |
14 | |
15 | void __cdecl free_func_default(); |
16 | void __stdcall free_func_default(); // expected-error {{function declared 'stdcall' here was previously declared without calling convention}} |
17 | void __fastcall free_func_default(); // expected-error {{function declared 'fastcall' here was previously declared without calling convention}} |
18 | |
19 | void free_func_cdecl(); |
20 | void __stdcall free_func_cdecl(); // expected-error {{function declared 'stdcall' here was previously declared 'cdecl'}} |
21 | void __fastcall free_func_cdecl(); // expected-error {{function declared 'fastcall' here was previously declared 'cdecl'}} |
22 | |
23 | void free_func_stdcall(); |
24 | void __cdecl free_func_stdcall(); // expected-error {{function declared 'cdecl' here was previously declared 'stdcall'}} |
25 | void __fastcall free_func_stdcall(); // expected-error {{function declared 'fastcall' here was previously declared 'stdcall'}} |
26 | |
27 | void __cdecl free_func_fastcall(); // expected-error {{function declared 'cdecl' here was previously declared 'fastcall'}} |
28 | void __stdcall free_func_fastcall(); // expected-error {{function declared 'stdcall' here was previously declared 'fastcall'}} |
29 | void free_func_fastcall(); |
30 | |
31 | void __cdecl free_func_vectorcall(); // expected-error {{function declared 'cdecl' here was previously declared 'vectorcall'}} |
32 | void __stdcall free_func_vectorcall(); // expected-error {{function declared 'stdcall' here was previously declared 'vectorcall'}} |
33 | void free_func_vectorcall(); |
34 | |
35 | // Overloaded functions may have different calling conventions |
36 | void __fastcall free_func_default(int); |
37 | void __cdecl free_func_default(int *); |
38 | |
39 | void __thiscall free_func_cdecl(char *); |
40 | void __cdecl free_func_cdecl(double); |
41 | |
42 | typedef void void_fun_t(); |
43 | typedef void __cdecl cdecl_fun_t(); |
44 | |
45 | // Pointers to member functions |
46 | struct S { |
47 | void member_default1(); // expected-note {{previous declaration is here}} |
48 | void member_default2(); |
49 | void __cdecl member_cdecl1(); |
50 | void __cdecl member_cdecl2(); // expected-note {{previous declaration is here}} |
51 | void __thiscall member_thiscall1(); |
52 | void __thiscall member_thiscall2(); // expected-note {{previous declaration is here}} |
53 | void __vectorcall member_vectorcall1(); |
54 | void __vectorcall member_vectorcall2(); // expected-note {{previous declaration is here}} |
55 | |
56 | // Typedefs carrying the __cdecl convention are adjusted to __thiscall. |
57 | void_fun_t member_typedef_default; // expected-note {{previous declaration is here}} |
58 | cdecl_fun_t member_typedef_cdecl1; // expected-note {{previous declaration is here}} |
59 | cdecl_fun_t __cdecl member_typedef_cdecl2; |
60 | void_fun_t __stdcall member_typedef_stdcall; |
61 | |
62 | // Static member functions can't be __thiscall |
63 | static void static_member_default1(); |
64 | static void static_member_default2(); |
65 | static void static_member_default3(); // expected-note {{previous declaration is here}} |
66 | static void __cdecl static_member_cdecl1(); |
67 | static void __cdecl static_member_cdecl2(); // expected-note {{previous declaration is here}} |
68 | static void __stdcall static_member_stdcall1(); |
69 | static void __stdcall static_member_stdcall2(); |
70 | |
71 | // Variadic functions can't be other than default or __cdecl |
72 | void member_variadic_default(int x, ...); |
73 | void __cdecl member_variadic_cdecl(int x, ...); |
74 | |
75 | static void static_member_variadic_default(int x, ...); |
76 | static void __cdecl static_member_variadic_cdecl(int x, ...); |
77 | |
78 | // Structors can't be other than default in MS ABI environment |
79 | #ifdef MSABI |
80 | __vectorcall S(); // expected-warning {{vectorcall calling convention ignored on constructor/destructor}} |
81 | #endif |
82 | }; |
83 | |
84 | void __cdecl S::member_default1() {} // expected-error {{function declared 'cdecl' here was previously declared without calling convention}} |
85 | void __thiscall S::member_default2() {} |
86 | |
87 | void __cdecl S::member_typedef_default() {} // expected-error {{function declared 'cdecl' here was previously declared without calling convention}} |
88 | void __cdecl S::member_typedef_cdecl1() {} // expected-error {{function declared 'cdecl' here was previously declared without calling convention}} |
89 | void __cdecl S::member_typedef_cdecl2() {} |
90 | void __stdcall S::member_typedef_stdcall() {} |
91 | |
92 | void S::member_cdecl1() {} |
93 | void __thiscall S::member_cdecl2() {} // expected-error {{function declared 'thiscall' here was previously declared 'cdecl'}} |
94 | |
95 | void S::member_thiscall1() {} |
96 | void __cdecl S::member_thiscall2() {} // expected-error {{function declared 'cdecl' here was previously declared 'thiscall'}} |
97 | |
98 | void S::member_vectorcall1() {} |
99 | void __cdecl S::member_vectorcall2() {} // expected-error {{function declared 'cdecl' here was previously declared 'vectorcall'}} |
100 | |
101 | void S::static_member_default1() {} |
102 | void __cdecl S::static_member_default2() {} |
103 | void __stdcall S::static_member_default3() {} // expected-error {{function declared 'stdcall' here was previously declared without calling convention}} |
104 | |
105 | void S::static_member_cdecl1() {} |
106 | void __stdcall S::static_member_cdecl2() {} // expected-error {{function declared 'stdcall' here was previously declared 'cdecl'}} |
107 | |
108 | void __cdecl S::member_variadic_default(int x, ...) { (void)x; } |
109 | void S::member_variadic_cdecl(int x, ...) { (void)x; } |
110 | |
111 | void __cdecl S::static_member_variadic_default(int x, ...) { (void)x; } |
112 | void S::static_member_variadic_cdecl(int x, ...) { (void)x; } |
113 | |
114 | // Declare a template using a calling convention. |
115 | template <class CharT> inline int __cdecl mystrlen(const CharT *str) { |
116 | int i; |
117 | for (i = 0; str[i]; i++) { } |
118 | return i; |
119 | } |
120 | extern int sse_strlen(const char *str); |
121 | template <> inline int __cdecl mystrlen(const char *str) { |
122 | return sse_strlen(str); |
123 | } |
124 | void use_tmpl(const char *str, const int *ints) { |
125 | mystrlen(str); |
126 | mystrlen(ints); |
127 | } |
128 | |
129 | struct MixedCCStaticOverload { |
130 | static void overloaded(int a); |
131 | static void __stdcall overloaded(short a); |
132 | }; |
133 | |
134 | void MixedCCStaticOverload::overloaded(int a) {} |
135 | void MixedCCStaticOverload::overloaded(short a) {} |
136 | |
137 | // Friend function decls are cdecl by default, not thiscall. Friend method |
138 | // decls should always be redeclarations, because the class cannot be |
139 | // incomplete. |
140 | struct FriendClass { |
141 | void friend_method() {} |
142 | }; |
143 | void __stdcall friend_stdcall1() {} |
144 | class MakeFriendDecls { |
145 | int x; |
146 | friend void FriendClass::friend_method(); |
147 | friend void friend_default(); |
148 | friend void friend_stdcall1(); |
149 | friend void __stdcall friend_stdcall2(); |
150 | friend void friend_stdcall3(); // expected-note {{previous declaration is here}} |
151 | }; |
152 | void friend_default() {} |
153 | void __stdcall friend_stdcall3() {} // expected-error {{function declared 'stdcall' here was previously declared without calling convention}} |
154 | void __stdcall friend_stdcall2() {} |
155 | |
156 | // Test functions with multiple attributes. |
157 | void __attribute__((noreturn)) __stdcall __attribute__((regparm(1))) multi_attribute(int x); |
158 | void multi_attribute(int x) { __builtin_unreachable(); } |
159 | |
160 | |
161 | // expected-error@+3 {{vectorcall and cdecl attributes are not compatible}} |
162 | // expected-error@+2 {{stdcall and cdecl attributes are not compatible}} |
163 | // expected-error@+1 {{fastcall and cdecl attributes are not compatible}} |
164 | void __cdecl __cdecl __stdcall __cdecl __fastcall __vectorcall multi_cc(int x); |
165 | |
166 | template <typename T> void __stdcall StdcallTemplate(T) {} |
167 | template <> void StdcallTemplate<int>(int) {} |
168 | template <> void __stdcall StdcallTemplate<short>(short) {} |
169 | |
170 | // FIXME: Note the template, not the implicit instantiation. |
171 | // expected-error@+2 {{function declared 'cdecl' here was previously declared 'stdcall}} |
172 | // expected-note@+1 {{previous declaration is here}} |
173 | template <> void __cdecl StdcallTemplate<long>(long) {} |
174 | |
175 | struct ExactlyInt { |
176 | template <typename T> static int cast_to_int(T) { |
177 | return T::this_is_not_an_int(); |
178 | } |
179 | }; |
180 | template <> inline int ExactlyInt::cast_to_int<int>(int x) { return x; } |
181 | |
182 | namespace test2 { |
183 | class foo { |
184 | template <typename T> void bar(T v); |
185 | }; |
186 | extern template void foo::bar(const void *); |
187 | } |
188 | |
189 | namespace test3 { |
190 | struct foo { |
191 | typedef void bar(); |
192 | }; |
193 | bool zed(foo::bar *); |
194 | void bah() {} |
195 | void baz() { zed(bah); } |
196 | } |
197 | |
198 | namespace test4 { |
199 | class foo { |
200 | template <typename T> static void bar(T v); |
201 | }; |
202 | extern template void foo::bar(const void *); |
203 | } |
204 | |
205 | namespace test5 { |
206 | template <class T> |
207 | class valarray { |
208 | void bar(); |
209 | }; |
210 | extern template void valarray<int>::bar(); |
211 | } |
212 | |
213 | namespace test6 { |
214 | struct foo { |
215 | int bar(); |
216 | }; |
217 | typedef int bar_t(); |
218 | void zed(bar_t foo::*) { |
219 | } |
220 | void baz() { |
221 | zed(&foo::bar); |
222 | } |
223 | } |
224 | |
225 | namespace test7 { |
226 | template <typename T> |
227 | struct S { |
228 | void f(T t) { |
229 | t = 42; |
230 | } |
231 | }; |
232 | template<> void S<void*>::f(void*); |
233 | void g(S<void*> s, void* p) { |
234 | s.f(p); |
235 | } |
236 | } |
237 | |
238 | namespace test8 { |
239 | template <typename T> |
240 | struct S { |
241 | void f(T t) { // expected-note {{previous declaration is here}} |
242 | t = 42; // expected-error {{assigning to 'void *' from incompatible type 'int'}} |
243 | } |
244 | }; |
245 | template<> void __cdecl S<void*>::f(void*); // expected-error {{function declared 'cdecl' here was previously declared without calling convention}} |
246 | void g(S<void*> s, void* p) { |
247 | s.f(p); // expected-note {{in instantiation of member function 'test8::S<void *>::f' requested here}} |
248 | } |
249 | } |
250 | |
251 | namespace test9 { |
252 | // Used to fail when we forgot to make lambda call operators use __thiscall. |
253 | template <typename F> |
254 | decltype(auto) deduce(F f) { |
255 | return &decltype(f)::operator(); |
256 | } |
257 | template <typename C, typename R, typename A> |
258 | decltype(auto) signaturehelper(R (C::*f)(A) const) { |
259 | return R(); |
260 | } |
261 | void f() { |
262 | auto l = [](int x) { return x * 2; }; |
263 | decltype(signaturehelper(deduce(l))) p; |
264 | } |
265 | } |
266 | |