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      1 // RUN: %clang_cc1 %s -triple=armv7-unknown-unknown -emit-llvm -o - | FileCheck %s
      2 // RUN: %clang_cc1 %s -triple=armv7-unknown-unknown -emit-llvm -o - | FileCheck -check-prefix=CHECK-LATE %s
      3 
      4 // The 'a' variants ask for the v-table first.
      5 // The 'b' variants ask for the v-table second.
      6 // The 'c' variants ask for the v-table third.
      7 // We do a separate CHECK-LATE pass because the RTTI definition gets
      8 // changed after the fact, which causes reordering of the globals.
      9 
     10 // These are not separated into namespaces because the way that Sema
     11 // currently reports namespaces to IR-generation (i.e., en masse for
     12 // the entire namespace at once) subverts the ordering that we're
     13 // trying to test.
     14 
     15 namespace std { class type_info; }
     16 extern void use(const std::type_info &rtti);
     17 
     18 /*** Test0a ******************************************************************/
     19 
     20 struct Test0a {
     21   Test0a();
     22   virtual inline void foo();
     23   virtual void bar();
     24 };
     25 
     26 // V-table should be defined externally.
     27 Test0a::Test0a() { use(typeid(Test0a)); }
     28 // CHECK: @_ZTV6Test0a = external unnamed_addr constant
     29 // CHECK: @_ZTI6Test0a = external constant
     30 
     31 // This is still not a key function.
     32 void Test0a::foo() {}
     33 
     34 /*** Test0b ******************************************************************/
     35 
     36 struct Test0b {
     37   Test0b();
     38   virtual inline void foo();
     39   virtual void bar();
     40 };
     41 
     42 // This is still not a key function.
     43 void Test0b::foo() {}
     44 
     45 // V-table should be defined externally.
     46 Test0b::Test0b() { use(typeid(Test0b)); }
     47 // CHECK: @_ZTV6Test0b = external unnamed_addr constant
     48 // CHECK: @_ZTI6Test0b = external constant
     49 
     50 /*** Test1a ******************************************************************/
     51 
     52 struct Test1a {
     53   Test1a();
     54   virtual void foo();
     55   virtual void bar();
     56 };
     57 
     58 // V-table should be defined externally.
     59 Test1a::Test1a() { use(typeid(Test1a)); }
     60 // CHECK: @_ZTV6Test1a = external unnamed_addr constant
     61 // CHECK: @_ZTI6Test1a = external constant
     62 
     63 // 'bar' becomes the key function when 'foo' is defined inline.
     64 inline void Test1a::foo() {}
     65 
     66 /*** Test1b ******************************************************************/
     67 
     68 struct Test1b {
     69   Test1b();
     70   virtual void foo();
     71   virtual void bar();
     72 };
     73 
     74 // 'bar' becomes the key function when 'foo' is defined inline.
     75 inline void Test1b::foo() {}
     76 
     77 // V-table should be defined externally.
     78 Test1b::Test1b() { use(typeid(Test1b)); }
     79 // CHECK: @_ZTV6Test1b = external unnamed_addr constant
     80 // CHECK: @_ZTI6Test1b = external constant
     81 
     82 /*** Test2a ******************************************************************/
     83 
     84 struct Test2a {
     85   Test2a();
     86   virtual void foo();
     87   virtual void bar();
     88 };
     89 
     90 // V-table should be defined with strong linkage.
     91 Test2a::Test2a() { use(typeid(Test2a)); }
     92 // CHECK:      @_ZTV6Test2a = unnamed_addr constant
     93 // CHECK-LATE: @_ZTS6Test2a = constant
     94 // CHECK-LATE: @_ZTI6Test2a = constant
     95 
     96 // 'bar' becomes the key function when 'foo' is defined inline.
     97 void Test2a::bar() {}
     98 inline void Test2a::foo() {}
     99 
    100 /*** Test2b ******************************************************************/
    101 
    102 struct Test2b {
    103   Test2b();
    104   virtual void foo();
    105   virtual void bar();
    106 };
    107 
    108 // 'bar' becomes the key function when 'foo' is defined inline.
    109 void Test2b::bar() {}
    110 
    111 // V-table should be defined with strong linkage.
    112 Test2b::Test2b() { use(typeid(Test2b)); }
    113 // CHECK:      @_ZTV6Test2b = unnamed_addr constant
    114 // CHECK-LATE: @_ZTS6Test2b = constant
    115 // CHECK-LATE: @_ZTI6Test2b = constant
    116 
    117 inline void Test2b::foo() {}
    118 
    119 /*** Test2c ******************************************************************/
    120 
    121 struct Test2c {
    122   Test2c();
    123   virtual void foo();
    124   virtual void bar();
    125 };
    126 
    127 // 'bar' becomes the key function when 'foo' is defined inline.
    128 void Test2c::bar() {}
    129 inline void Test2c::foo() {}
    130 
    131 // V-table should be defined with strong linkage.
    132 Test2c::Test2c() { use(typeid(Test2c)); }
    133 // CHECK: @_ZTV6Test2c = unnamed_addr constant
    134 // CHECK: @_ZTS6Test2c = constant
    135 // CHECK: @_ZTI6Test2c = constant
    136 
    137 /*** Test3a ******************************************************************/
    138 
    139 struct Test3a {
    140   Test3a();
    141   virtual void foo();
    142   virtual void bar();
    143 };
    144 
    145 // V-table should be defined with weak linkage.
    146 Test3a::Test3a() { use(typeid(Test3a)); }
    147 // CHECK:      @_ZTV6Test3a = linkonce_odr unnamed_addr constant
    148 // CHECK-LATE: @_ZTS6Test3a = linkonce_odr constant
    149 // CHECK-LATE: @_ZTI6Test3a = linkonce_odr constant
    150 
    151 // There ceases to be a key function after these declarations.
    152 inline void Test3a::bar() {}
    153 inline void Test3a::foo() {}
    154 
    155 /*** Test3b ******************************************************************/
    156 
    157 struct Test3b {
    158   Test3b();
    159   virtual void foo();
    160   virtual void bar();
    161 };
    162 
    163 // There ceases to be a key function after these declarations.
    164 inline void Test3b::bar() {}
    165 
    166 // V-table should be defined with weak linkage.
    167 Test3b::Test3b() { use(typeid(Test3b)); }
    168 // CHECK:      @_ZTV6Test3b = linkonce_odr unnamed_addr constant
    169 // CHECK-LATE: @_ZTS6Test3b = linkonce_odr constant
    170 // CHECK-LATE: @_ZTI6Test3b = linkonce_odr constant
    171 
    172 inline void Test3b::foo() {}
    173 
    174 /*** Test3c ******************************************************************/
    175 
    176 struct Test3c {
    177   Test3c();
    178   virtual void foo();
    179   virtual void bar();
    180 };
    181 
    182 // There ceases to be a key function after these declarations.
    183 inline void Test3c::bar() {}
    184 inline void Test3c::foo() {}
    185 
    186 // V-table should be defined with weak linkage.
    187 Test3c::Test3c() { use(typeid(Test3c)); }
    188 // CHECK: @_ZTV6Test3c = linkonce_odr unnamed_addr constant
    189 // CHECK: @_ZTS6Test3c = linkonce_odr constant
    190 // CHECK: @_ZTI6Test3c = linkonce_odr constant
    191 
    192 /*** Test4a ******************************************************************/
    193 
    194 template <class T> struct Test4a {
    195   Test4a();
    196   virtual void foo();
    197   virtual void bar();
    198 };
    199 
    200 // V-table should be defined with weak linkage.
    201 template <> Test4a<int>::Test4a() { use(typeid(Test4a)); }
    202 // CHECK: @_ZTV6Test4aIiE = linkonce_odr unnamed_addr constant
    203 // CHECK: @_ZTS6Test4aIiE = linkonce_odr constant
    204 // CHECK: @_ZTI6Test4aIiE = linkonce_odr constant
    205 
    206 // There ceases to be a key function after these declarations.
    207 template <> inline void Test4a<int>::bar() {}
    208 template <> inline void Test4a<int>::foo() {}
    209 
    210 /*** Test4b ******************************************************************/
    211 
    212 template <class T> struct Test4b {
    213   Test4b();
    214   virtual void foo();
    215   virtual void bar();
    216 };
    217 
    218 // There ceases to be a key function after these declarations.
    219 template <> inline void Test4b<int>::bar() {}
    220 
    221 // V-table should be defined with weak linkage.
    222 template <> Test4b<int>::Test4b() { use(typeid(Test4b)); }
    223 // CHECK: @_ZTV6Test4bIiE = linkonce_odr unnamed_addr constant
    224 // CHECK: @_ZTS6Test4bIiE = linkonce_odr constant
    225 // CHECK: @_ZTI6Test4bIiE = linkonce_odr constant
    226 
    227 template <> inline void Test4b<int>::foo() {}
    228 
    229 /*** Test4c ******************************************************************/
    230 
    231 template <class T> struct Test4c {
    232   Test4c();
    233   virtual void foo();
    234   virtual void bar();
    235 };
    236 
    237 // There ceases to be a key function after these declarations.
    238 template <> inline void Test4c<int>::bar() {}
    239 template <> inline void Test4c<int>::foo() {}
    240 
    241 // V-table should be defined with weak linkage.
    242 template <> Test4c<int>::Test4c() { use(typeid(Test4c)); }
    243 // CHECK: @_ZTV6Test4cIiE = linkonce_odr unnamed_addr constant
    244 // CHECK: @_ZTS6Test4cIiE = linkonce_odr constant
    245 // CHECK: @_ZTI6Test4cIiE = linkonce_odr constant
    246 
    247 /*** Test5a ******************************************************************/
    248 
    249 template <class T> struct Test5a {
    250   Test5a();
    251   virtual void foo();
    252   virtual void bar();
    253 };
    254 
    255 template <> inline void Test5a<int>::bar();
    256 template <> inline void Test5a<int>::foo();
    257 
    258 // V-table should be defined with weak linkage.
    259 template <> Test5a<int>::Test5a() { use(typeid(Test5a)); }
    260 // CHECK: @_ZTV6Test5aIiE = linkonce_odr unnamed_addr constant
    261 // CHECK: @_ZTS6Test5aIiE = linkonce_odr constant
    262 // CHECK: @_ZTI6Test5aIiE = linkonce_odr constant
    263 
    264 // There ceases to be a key function after these declarations.
    265 template <> inline void Test5a<int>::bar() {}
    266 template <> inline void Test5a<int>::foo() {}
    267 
    268 /*** Test5b ******************************************************************/
    269 
    270 template <class T> struct Test5b {
    271   Test5b();
    272   virtual void foo();
    273   virtual void bar();
    274 };
    275 
    276 // There ceases to be a key function after these declarations.
    277 template <> inline void Test5a<int>::bar();
    278 template <> inline void Test5b<int>::bar() {}
    279 
    280 // V-table should be defined with weak linkage.
    281 template <> Test5b<int>::Test5b() { use(typeid(Test5b)); }
    282 // CHECK: @_ZTV6Test5bIiE = linkonce_odr unnamed_addr constant
    283 // CHECK: @_ZTS6Test5bIiE = linkonce_odr constant
    284 // CHECK: @_ZTI6Test5bIiE = linkonce_odr constant
    285 
    286 template <> inline void Test5a<int>::foo();
    287 template <> inline void Test5b<int>::foo() {}
    288 
    289 /*** Test5c ******************************************************************/
    290 
    291 template <class T> struct Test5c {
    292   Test5c();
    293   virtual void foo();
    294   virtual void bar();
    295 };
    296 
    297 // There ceases to be a key function after these declarations.
    298 template <> inline void Test5a<int>::bar();
    299 template <> inline void Test5a<int>::foo();
    300 template <> inline void Test5c<int>::bar() {}
    301 template <> inline void Test5c<int>::foo() {}
    302 
    303 // V-table should be defined with weak linkage.
    304 template <> Test5c<int>::Test5c() { use(typeid(Test5c)); }
    305 // CHECK: @_ZTV6Test5cIiE = linkonce_odr unnamed_addr constant
    306 // CHECK: @_ZTS6Test5cIiE = linkonce_odr constant
    307 // CHECK: @_ZTI6Test5cIiE = linkonce_odr constant
    308