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      1 // RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -fms-extensions -fdelayed-template-parsing -triple=i386-pc-win32 | FileCheck %s
      2 // RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -fms-extensions -fdelayed-template-parsing -triple=x86_64-pc-win32 | FileCheck -check-prefix X64 %s
      3 
      4 template<typename T>
      5 class Class {
      6  public:
      7   Class() {}
      8 };
      9 
     10 class Typename { };
     11 
     12 template<typename T>
     13 class Nested { };
     14 
     15 template<bool flag>
     16 class BoolTemplate {
     17  public:
     18   BoolTemplate() {}
     19 };
     20 
     21 template<int param>
     22 class IntTemplate {
     23  public:
     24   IntTemplate() {}
     25 };
     26 
     27 template<long long param>
     28 class LongLongTemplate {
     29  public:
     30   LongLongTemplate() {}
     31 };
     32 
     33 template<unsigned long long param>
     34 class UnsignedLongLongTemplate {
     35  public:
     36   UnsignedLongLongTemplate() {}
     37 };
     38 
     39 template<>
     40 class BoolTemplate<true> {
     41  public:
     42   BoolTemplate() {}
     43   template<class T> void Foo(T arg) {}
     44 };
     45 
     46 void template_mangling() {
     47   Class<Typename> c1;
     48 // CHECK: call {{.*}} @"\01??0?$Class@VTypename@@@@QAE@XZ"
     49 // X64: call {{.*}} @"\01??0?$Class@VTypename@@@@QEAA@XZ"
     50 
     51   Class<const Typename> c1_const;
     52 // CHECK: call {{.*}} @"\01??0?$Class@$$CBVTypename@@@@QAE@XZ"
     53 // X64: call {{.*}} @"\01??0?$Class@$$CBVTypename@@@@QEAA@XZ"
     54   Class<volatile Typename> c1_volatile;
     55 // CHECK: call {{.*}} @"\01??0?$Class@$$CCVTypename@@@@QAE@XZ"
     56 // X64: call {{.*}} @"\01??0?$Class@$$CCVTypename@@@@QEAA@XZ"
     57   Class<const volatile Typename> c1_cv;
     58 // CHECK: call {{.*}} @"\01??0?$Class@$$CDVTypename@@@@QAE@XZ"
     59 // X64: call {{.*}} @"\01??0?$Class@$$CDVTypename@@@@QEAA@XZ"
     60 
     61   Class<Nested<Typename> > c2;
     62 // CHECK: call {{.*}} @"\01??0?$Class@V?$Nested@VTypename@@@@@@QAE@XZ"
     63 // X64: call {{.*}} @"\01??0?$Class@V?$Nested@VTypename@@@@@@QEAA@XZ"
     64 
     65   Class<int * const> c_intpc;
     66 // CHECK: call {{.*}} @"\01??0?$Class@QAH@@QAE@XZ"
     67 // X64: call {{.*}} @"\01??0?$Class@QEAH@@QEAA@XZ"
     68   Class<int()> c_ft;
     69 // CHECK: call {{.*}} @"\01??0?$Class@$$A6AHXZ@@QAE@XZ"
     70 // X64: call {{.*}} @"\01??0?$Class@$$A6AHXZ@@QEAA@XZ"
     71   Class<int[]> c_inti;
     72 // CHECK: call {{.*}} @"\01??0?$Class@$$BY0A@H@@QAE@XZ"
     73 // X64: call {{.*}} @"\01??0?$Class@$$BY0A@H@@QEAA@XZ"
     74   Class<int[5]> c_int5;
     75 // CHECK: call {{.*}} @"\01??0?$Class@$$BY04H@@QAE@XZ"
     76 // X64: call {{.*}} @"\01??0?$Class@$$BY04H@@QEAA@XZ"
     77   Class<const int[5]> c_intc5;
     78 // CHECK: call {{.*}} @"\01??0?$Class@$$BY04$$CBH@@QAE@XZ"
     79 // X64: call {{.*}} @"\01??0?$Class@$$BY04$$CBH@@QEAA@XZ"
     80   Class<int * const[5]> c_intpc5;
     81 // CHECK: call {{.*}} @"\01??0?$Class@$$BY04QAH@@QAE@XZ"
     82 // X64: call {{.*}} @"\01??0?$Class@$$BY04QEAH@@QEAA@XZ"
     83 
     84   BoolTemplate<false> _false;
     85 // CHECK: call {{.*}} @"\01??0?$BoolTemplate@$0A@@@QAE@XZ"
     86 // X64: call {{.*}} @"\01??0?$BoolTemplate@$0A@@@QEAA@XZ"
     87 
     88   BoolTemplate<true> _true;
     89   // PR13158
     90   _true.Foo(1);
     91 // CHECK: call {{.*}} @"\01??0?$BoolTemplate@$00@@QAE@XZ"
     92 // X64: call {{.*}} @"\01??0?$BoolTemplate@$00@@QEAA@XZ"
     93 // CHECK: call {{.*}} @"\01??$Foo@H@?$BoolTemplate@$00@@QAEXH@Z"
     94 // X64: call {{.*}} @"\01??$Foo@H@?$BoolTemplate@$00@@QEAAXH@Z"
     95 
     96   IntTemplate<0> zero;
     97 // CHECK: call {{.*}} @"\01??0?$IntTemplate@$0A@@@QAE@XZ"
     98 // X64: call {{.*}} @"\01??0?$IntTemplate@$0A@@@QEAA@XZ"
     99 
    100   IntTemplate<5> five;
    101 // CHECK: call {{.*}} @"\01??0?$IntTemplate@$04@@QAE@XZ"
    102 // X64: call {{.*}} @"\01??0?$IntTemplate@$04@@QEAA@XZ"
    103 
    104   IntTemplate<11> eleven;
    105 // CHECK: call {{.*}} @"\01??0?$IntTemplate@$0L@@@QAE@XZ"
    106 // X64: call {{.*}} @"\01??0?$IntTemplate@$0L@@@QEAA@XZ"
    107 
    108   IntTemplate<256> _256;
    109 // CHECK: call {{.*}} @"\01??0?$IntTemplate@$0BAA@@@QAE@XZ"
    110 // X64: call {{.*}} @"\01??0?$IntTemplate@$0BAA@@@QEAA@XZ"
    111 
    112   IntTemplate<513> _513;
    113 // CHECK: call {{.*}} @"\01??0?$IntTemplate@$0CAB@@@QAE@XZ"
    114 // X64: call {{.*}} @"\01??0?$IntTemplate@$0CAB@@@QEAA@XZ"
    115 
    116   IntTemplate<1026> _1026;
    117 // CHECK: call {{.*}} @"\01??0?$IntTemplate@$0EAC@@@QAE@XZ"
    118 // X64: call {{.*}} @"\01??0?$IntTemplate@$0EAC@@@QEAA@XZ"
    119 
    120   IntTemplate<65535> ffff;
    121 // CHECK: call {{.*}} @"\01??0?$IntTemplate@$0PPPP@@@QAE@XZ"
    122 // X64: call {{.*}} @"\01??0?$IntTemplate@$0PPPP@@@QEAA@XZ"
    123 
    124   IntTemplate<-1>  neg_1;
    125 // CHECK: call {{.*}} @"\01??0?$IntTemplate@$0?0@@QAE@XZ"
    126 // X64: call {{.*}} @"\01??0?$IntTemplate@$0?0@@QEAA@XZ"
    127   IntTemplate<-9>  neg_9;
    128 // CHECK: call {{.*}} @"\01??0?$IntTemplate@$0?8@@QAE@XZ"
    129 // X64: call {{.*}} @"\01??0?$IntTemplate@$0?8@@QEAA@XZ"
    130   IntTemplate<-10> neg_10;
    131 // CHECK: call {{.*}} @"\01??0?$IntTemplate@$0?9@@QAE@XZ"
    132 // X64: call {{.*}} @"\01??0?$IntTemplate@$0?9@@QEAA@XZ"
    133   IntTemplate<-11> neg_11;
    134 // CHECK: call {{.*}} @"\01??0?$IntTemplate@$0?L@@@QAE@XZ"
    135 // X64: call {{.*}} @"\01??0?$IntTemplate@$0?L@@@QEAA@XZ"
    136 
    137   LongLongTemplate<-9223372036854775807LL-1LL> int64_min;
    138 // CHECK: call {{.*}} @"\01??0?$LongLongTemplate@$0?IAAAAAAAAAAAAAAA@@@QAE@XZ"
    139 // X64: call {{.*}} @"\01??0?$LongLongTemplate@$0?IAAAAAAAAAAAAAAA@@@QEAA@XZ"
    140   LongLongTemplate<9223372036854775807LL>      int64_max;
    141 // CHECK: call {{.*}} @"\01??0?$LongLongTemplate@$0HPPPPPPPPPPPPPPP@@@QAE@XZ"
    142 // X64: call {{.*}} @"\01??0?$LongLongTemplate@$0HPPPPPPPPPPPPPPP@@@QEAA@XZ"
    143   UnsignedLongLongTemplate<18446744073709551615ULL> uint64_max;
    144 // CHECK: call {{.*}} @"\01??0?$UnsignedLongLongTemplate@$0?0@@QAE@XZ"
    145 // X64: call {{.*}} @"\01??0?$UnsignedLongLongTemplate@$0?0@@QEAA@XZ"
    146   UnsignedLongLongTemplate<(unsigned long long)-1>  uint64_neg_1;
    147 // CHECK: call {{.*}} @"\01??0?$UnsignedLongLongTemplate@$0?0@@QAE@XZ"
    148 // X64: call {{.*}} @"\01??0?$UnsignedLongLongTemplate@$0?0@@QEAA@XZ"
    149 }
    150 
    151 namespace space {
    152   template<class T> const T& foo(const T& l) { return l; }
    153 }
    154 // CHECK: "\01??$foo@H@space@@YAABHABH@Z"
    155 // X64: "\01??$foo@H@space@@YAAEBHAEBH@Z"
    156 
    157 void use() {
    158   space::foo(42);
    159 }
    160 
    161 // PR13455
    162 typedef void (*FunctionPointer)(void);
    163 
    164 template <FunctionPointer function>
    165 void FunctionPointerTemplate() {
    166   function();
    167 }
    168 
    169 void spam() {
    170   FunctionPointerTemplate<spam>();
    171 // CHECK: "\01??$FunctionPointerTemplate@$1?spam@@YAXXZ@@YAXXZ"
    172 // X64: "\01??$FunctionPointerTemplate@$1?spam@@YAXXZ@@YAXXZ"
    173 }
    174 
    175 // Unlike Itanium, there is no character code to indicate an argument pack.
    176 // Tested with MSVC 2013, the first version which supports variadic templates.
    177 
    178 template <typename ...Ts> void variadic_fn_template(const Ts &...args) { }
    179 void variadic_fn_instantiate() {
    180   variadic_fn_template(0, 1, 3, 4);
    181   variadic_fn_template(0, 1, 'a', "b");
    182 }
    183 // CHECK: "\01??$variadic_fn_template@HHHH@@YAXABH000@Z"
    184 // CHECK: "\01??$variadic_fn_template@HHD$$BY01D@@YAXABH0ABDAAY01$$CBD@Z"
    185 
    186 template <typename ...Ts>
    187 struct VariadicClass {
    188   VariadicClass() { }
    189   int x;
    190 };
    191 void variadic_class_instantiate() {
    192   VariadicClass<int, char, bool> a;
    193   VariadicClass<bool, char, int> b;
    194 }
    195 // CHECK: call {{.*}} @"\01??0?$VariadicClass@HD_N@@QAE@XZ"
    196 // CHECK: call {{.*}} @"\01??0?$VariadicClass@_NDH@@QAE@XZ"
    197 
    198 template <typename T>
    199 struct Second {};
    200 
    201 template <typename T, template <class> class>
    202 struct Type {};
    203 
    204 template <template <class> class T>
    205 struct Type2 {};
    206 
    207 template <template <class> class T, bool B>
    208 struct Thing;
    209 
    210 template <template <class> class T>
    211 struct Thing<T, false> { };
    212 
    213 template <template <class> class T>
    214 struct Thing<T, true> { };
    215 
    216 void template_template_fun(Type<Thing<Second, true>, Second>) { }
    217 // CHECK: "\01?template_template_fun@@YAXU?$Type@U?$Thing@USecond@@$00@@USecond@@@@@Z"
    218 
    219 template <typename T>
    220 void template_template_specialization();
    221 
    222 template <>
    223 void template_template_specialization<void (Type<Thing<Second, true>, Second>)>() {
    224 }
    225 // CHECK: "\01??$template_template_specialization@$$A6AXU?$Type@U?$Thing@USecond@@$00@@USecond@@@@@Z@@YAXXZ"
    226 
    227 // PR16788
    228 template <decltype(nullptr)> struct S1 {};
    229 void f(S1<nullptr>) {}
    230 // CHECK: "\01?f@@YAXU?$S1@$0A@@@@Z"
    231 
    232 struct record {
    233   int first;
    234   int second;
    235 };
    236 template <const record &>
    237 struct type1 {
    238 };
    239 extern const record inst;
    240 void recref(type1<inst>) {}
    241 // CHECK: "\01?recref@@YAXU?$type1@$E?inst@@3Urecord@@B@@@Z"
    242 
    243 struct _GUID {};
    244 struct __declspec(uuid("{12345678-1234-1234-1234-1234567890aB}")) uuid;
    245 
    246 template <typename T, const _GUID *G = &__uuidof(T)>
    247 struct UUIDType1 {};
    248 
    249 template <typename T, const _GUID &G = __uuidof(T)>
    250 struct UUIDType2 {};
    251 
    252 void fun(UUIDType1<uuid> a) {}
    253 // CHECK: "\01?fun@@YAXU?$UUIDType1@Uuuid@@$1?_GUID_12345678_1234_1234_1234_1234567890ab@@3U__s_GUID@@B@@@Z"
    254 void fun(UUIDType2<uuid> b) {}
    255 // CHECK: "\01?fun@@YAXU?$UUIDType2@Uuuid@@$E?_GUID_12345678_1234_1234_1234_1234567890ab@@3U__s_GUID@@B@@@Z"
    256 
    257 template <typename T> struct TypeWithFriendDefinition {
    258   friend void FunctionDefinedWithInjectedName(TypeWithFriendDefinition<T>) {}
    259 };
    260 // CHECK: call {{.*}} @"\01?FunctionDefinedWithInjectedName@@YAXU?$TypeWithFriendDefinition@H@@@Z"
    261 void CallFunctionDefinedWithInjectedName() {
    262   FunctionDefinedWithInjectedName(TypeWithFriendDefinition<int>());
    263 }
    264 // CHECK: @"\01?FunctionDefinedWithInjectedName@@YAXU?$TypeWithFriendDefinition@H@@@Z"
    265 
    266 // We need to be able to feed GUIDs through a couple rounds of template
    267 // substitution.
    268 template <const _GUID *G>
    269 struct UUIDType3 {
    270   void foo() {}
    271 };
    272 template <const _GUID *G>
    273 struct UUIDType4 : UUIDType3<G> {
    274   void bar() { UUIDType4::foo(); }
    275 };
    276 template struct UUIDType4<&__uuidof(uuid)>;
    277 // CHECK: "\01?bar@?$UUIDType4@$1?_GUID_12345678_1234_1234_1234_1234567890ab@@3U__s_GUID@@B@@QAEXXZ"
    278 // CHECK: "\01?foo@?$UUIDType3@$1?_GUID_12345678_1234_1234_1234_1234567890ab@@3U__s_GUID@@B@@QAEXXZ"
    279