266 lines
10 KiB
C++
266 lines
10 KiB
C++
// RUN: %clang_cc1 -std=c++14 -triple i686-pc-win32 -fms-extensions -DMSABI -verify %s
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// RUN: %clang_cc1 -std=c++14 -triple i686-pc-mingw32 -verify %s
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// RUN: %clang_cc1 -std=c++14 -triple i686-pc-mingw32 -fms-extensions -verify %s
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typedef void void_fun_t();
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typedef void __cdecl cdecl_fun_t();
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// Pointers to free functions
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void free_func_default(); // expected-note 2 {{previous declaration is here}}
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void __cdecl free_func_cdecl(); // expected-note 2 {{previous declaration is here}}
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void __stdcall free_func_stdcall(); // expected-note 2 {{previous declaration is here}}
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void __fastcall free_func_fastcall(); // expected-note 2 {{previous declaration is here}}
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void __vectorcall free_func_vectorcall(); // expected-note 2 {{previous declaration is here}}
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void __cdecl free_func_default();
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void __stdcall free_func_default(); // expected-error {{function declared 'stdcall' here was previously declared without calling convention}}
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void __fastcall free_func_default(); // expected-error {{function declared 'fastcall' here was previously declared without calling convention}}
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void free_func_cdecl();
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void __stdcall free_func_cdecl(); // expected-error {{function declared 'stdcall' here was previously declared 'cdecl'}}
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void __fastcall free_func_cdecl(); // expected-error {{function declared 'fastcall' here was previously declared 'cdecl'}}
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void free_func_stdcall();
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void __cdecl free_func_stdcall(); // expected-error {{function declared 'cdecl' here was previously declared 'stdcall'}}
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void __fastcall free_func_stdcall(); // expected-error {{function declared 'fastcall' here was previously declared 'stdcall'}}
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void __cdecl free_func_fastcall(); // expected-error {{function declared 'cdecl' here was previously declared 'fastcall'}}
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void __stdcall free_func_fastcall(); // expected-error {{function declared 'stdcall' here was previously declared 'fastcall'}}
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void free_func_fastcall();
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void __cdecl free_func_vectorcall(); // expected-error {{function declared 'cdecl' here was previously declared 'vectorcall'}}
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void __stdcall free_func_vectorcall(); // expected-error {{function declared 'stdcall' here was previously declared 'vectorcall'}}
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void free_func_vectorcall();
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// Overloaded functions may have different calling conventions
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void __fastcall free_func_default(int);
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void __cdecl free_func_default(int *);
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void __thiscall free_func_cdecl(char *);
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void __cdecl free_func_cdecl(double);
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typedef void void_fun_t();
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typedef void __cdecl cdecl_fun_t();
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// Pointers to member functions
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struct S {
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void member_default1(); // expected-note {{previous declaration is here}}
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void member_default2();
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void __cdecl member_cdecl1();
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void __cdecl member_cdecl2(); // expected-note {{previous declaration is here}}
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void __thiscall member_thiscall1();
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void __thiscall member_thiscall2(); // expected-note {{previous declaration is here}}
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void __vectorcall member_vectorcall1();
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void __vectorcall member_vectorcall2(); // expected-note {{previous declaration is here}}
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// Typedefs carrying the __cdecl convention are adjusted to __thiscall.
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void_fun_t member_typedef_default; // expected-note {{previous declaration is here}}
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cdecl_fun_t member_typedef_cdecl1; // expected-note {{previous declaration is here}}
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cdecl_fun_t __cdecl member_typedef_cdecl2;
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void_fun_t __stdcall member_typedef_stdcall;
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// Static member functions can't be __thiscall
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static void static_member_default1();
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static void static_member_default2();
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static void static_member_default3(); // expected-note {{previous declaration is here}}
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static void __cdecl static_member_cdecl1();
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static void __cdecl static_member_cdecl2(); // expected-note {{previous declaration is here}}
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static void __stdcall static_member_stdcall1();
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static void __stdcall static_member_stdcall2();
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// Variadic functions can't be other than default or __cdecl
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void member_variadic_default(int x, ...);
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void __cdecl member_variadic_cdecl(int x, ...);
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static void static_member_variadic_default(int x, ...);
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static void __cdecl static_member_variadic_cdecl(int x, ...);
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// Structors can't be other than default in MS ABI environment
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#ifdef MSABI
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__vectorcall S(); // expected-warning {{vectorcall calling convention ignored on constructor/destructor}}
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#endif
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};
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void __cdecl S::member_default1() {} // expected-error {{function declared 'cdecl' here was previously declared without calling convention}}
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void __thiscall S::member_default2() {}
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void __cdecl S::member_typedef_default() {} // expected-error {{function declared 'cdecl' here was previously declared without calling convention}}
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void __cdecl S::member_typedef_cdecl1() {} // expected-error {{function declared 'cdecl' here was previously declared without calling convention}}
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void __cdecl S::member_typedef_cdecl2() {}
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void __stdcall S::member_typedef_stdcall() {}
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void S::member_cdecl1() {}
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void __thiscall S::member_cdecl2() {} // expected-error {{function declared 'thiscall' here was previously declared 'cdecl'}}
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void S::member_thiscall1() {}
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void __cdecl S::member_thiscall2() {} // expected-error {{function declared 'cdecl' here was previously declared 'thiscall'}}
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void S::member_vectorcall1() {}
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void __cdecl S::member_vectorcall2() {} // expected-error {{function declared 'cdecl' here was previously declared 'vectorcall'}}
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void S::static_member_default1() {}
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void __cdecl S::static_member_default2() {}
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void __stdcall S::static_member_default3() {} // expected-error {{function declared 'stdcall' here was previously declared without calling convention}}
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void S::static_member_cdecl1() {}
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void __stdcall S::static_member_cdecl2() {} // expected-error {{function declared 'stdcall' here was previously declared 'cdecl'}}
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void __cdecl S::member_variadic_default(int x, ...) { (void)x; }
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void S::member_variadic_cdecl(int x, ...) { (void)x; }
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void __cdecl S::static_member_variadic_default(int x, ...) { (void)x; }
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void S::static_member_variadic_cdecl(int x, ...) { (void)x; }
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// Declare a template using a calling convention.
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template <class CharT> inline int __cdecl mystrlen(const CharT *str) {
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int i;
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for (i = 0; str[i]; i++) { }
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return i;
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}
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extern int sse_strlen(const char *str);
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template <> inline int __cdecl mystrlen(const char *str) {
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return sse_strlen(str);
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}
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void use_tmpl(const char *str, const int *ints) {
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mystrlen(str);
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mystrlen(ints);
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}
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struct MixedCCStaticOverload {
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static void overloaded(int a);
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static void __stdcall overloaded(short a);
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};
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void MixedCCStaticOverload::overloaded(int a) {}
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void MixedCCStaticOverload::overloaded(short a) {}
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// Friend function decls are cdecl by default, not thiscall. Friend method
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// decls should always be redeclarations, because the class cannot be
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// incomplete.
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struct FriendClass {
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void friend_method() {}
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};
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void __stdcall friend_stdcall1() {}
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class MakeFriendDecls {
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int x;
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friend void FriendClass::friend_method();
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friend void friend_default();
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friend void friend_stdcall1();
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friend void __stdcall friend_stdcall2();
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friend void friend_stdcall3(); // expected-note {{previous declaration is here}}
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};
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void friend_default() {}
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void __stdcall friend_stdcall3() {} // expected-error {{function declared 'stdcall' here was previously declared without calling convention}}
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void __stdcall friend_stdcall2() {}
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// Test functions with multiple attributes.
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void __attribute__((noreturn)) __stdcall __attribute__((regparm(1))) multi_attribute(int x);
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void multi_attribute(int x) { __builtin_unreachable(); }
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// expected-error@+3 {{vectorcall and cdecl attributes are not compatible}}
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// expected-error@+2 {{stdcall and cdecl attributes are not compatible}}
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// expected-error@+1 {{fastcall and cdecl attributes are not compatible}}
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void __cdecl __cdecl __stdcall __cdecl __fastcall __vectorcall multi_cc(int x);
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template <typename T> void __stdcall StdcallTemplate(T) {}
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template <> void StdcallTemplate<int>(int) {}
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template <> void __stdcall StdcallTemplate<short>(short) {}
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// FIXME: Note the template, not the implicit instantiation.
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// expected-error@+2 {{function declared 'cdecl' here was previously declared 'stdcall}}
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// expected-note@+1 {{previous declaration is here}}
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template <> void __cdecl StdcallTemplate<long>(long) {}
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struct ExactlyInt {
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template <typename T> static int cast_to_int(T) {
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return T::this_is_not_an_int();
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}
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};
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template <> inline int ExactlyInt::cast_to_int<int>(int x) { return x; }
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namespace test2 {
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class foo {
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template <typename T> void bar(T v);
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};
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extern template void foo::bar(const void *);
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}
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namespace test3 {
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struct foo {
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typedef void bar();
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};
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bool zed(foo::bar *);
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void bah() {}
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void baz() { zed(bah); }
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}
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namespace test4 {
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class foo {
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template <typename T> static void bar(T v);
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};
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extern template void foo::bar(const void *);
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}
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namespace test5 {
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template <class T>
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class valarray {
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void bar();
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};
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extern template void valarray<int>::bar();
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}
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namespace test6 {
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struct foo {
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int bar();
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};
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typedef int bar_t();
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void zed(bar_t foo::*) {
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}
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void baz() {
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zed(&foo::bar);
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}
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}
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namespace test7 {
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template <typename T>
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struct S {
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void f(T t) {
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t = 42;
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}
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};
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template<> void S<void*>::f(void*);
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void g(S<void*> s, void* p) {
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s.f(p);
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}
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}
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namespace test8 {
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template <typename T>
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struct S {
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void f(T t) { // expected-note {{previous declaration is here}}
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t = 42; // expected-error {{assigning to 'void *' from incompatible type 'int'}}
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}
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};
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template<> void __cdecl S<void*>::f(void*); // expected-error {{function declared 'cdecl' here was previously declared without calling convention}}
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void g(S<void*> s, void* p) {
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s.f(p); // expected-note {{in instantiation of member function 'test8::S<void *>::f' requested here}}
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}
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}
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namespace test9 {
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// Used to fail when we forgot to make lambda call operators use __thiscall.
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template <typename F>
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decltype(auto) deduce(F f) {
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return &decltype(f)::operator();
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}
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template <typename C, typename R, typename A>
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decltype(auto) signaturehelper(R (C::*f)(A) const) {
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return R();
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}
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void f() {
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auto l = [](int x) { return x * 2; };
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decltype(signaturehelper(deduce(l))) p;
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}
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}
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