mangle.cpp 28.9 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140
// RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-apple-darwin9 -fblocks -std=c++11 | FileCheck %s
struct X { };
struct Y { };

// CHECK: @unmangled_variable = global
// CHECK: @_ZN1N1iE = global
// CHECK: @_ZZN1N1fEiiE1b = internal global
// CHECK: @_ZZN1N1gEvE1a = internal global
// CHECK: @_ZGVZN1N1gEvE1a = internal global

//CHECK: @pr5966_i = external global
//CHECK: @_ZL8pr5966_j = internal global

// CHECK-LABEL: define zeroext i1 @_ZplRK1YRA100_P1X
bool operator+(const Y&, X* (&xs)[100]) { return false; }

// CHECK-LABEL: define void @_Z1f1s
typedef struct { int a; } s;
void f(s) { }

// CHECK-LABEL: define void @_Z1f1e
typedef enum { foo } e;
void f(e) { }

// CHECK-LABEL: define void @_Z1f1u
typedef union { int a; } u;
void f(u) { }

// CHECK-LABEL: define void @_Z1f1x
typedef struct { int a; } x,y;
void f(y) { }

// CHECK-LABEL: define void @_Z1fv
void f() { }

// CHECK-LABEL: define void @_ZN1N1fEv
namespace N { void f() { } }

// CHECK-LABEL: define void @_ZN1N1N1fEv
namespace N { namespace N { void f() { } } }

// CHECK-LABEL: define void @unmangled_function
extern "C" { namespace N { void unmangled_function() { } } }

extern "C" { namespace N { int unmangled_variable = 10; } }

namespace N { int i; }

namespace N { int f(int, int) { static int b; return b; } }

namespace N { int h(); void g() { static int a = h(); } }

// CHECK-LABEL: define void @_Z1fno
void f(__int128_t, __uint128_t) { } 

template <typename T> struct S1 {};

// CHECK-LABEL: define void @_Z1f2S1IiE
void f(S1<int>) {}

// CHECK-LABEL: define void @_Z1f2S1IdE
void f(S1<double>) {}

template <int N> struct S2 {};
// CHECK-LABEL: define void @_Z1f2S2ILi100EE
void f(S2<100>) {}

// CHECK-LABEL: define void @_Z1f2S2ILin100EE
void f(S2<-100>) {}

template <bool B> struct S3 {};

// CHECK-LABEL: define void @_Z1f2S3ILb1EE
void f(S3<true>) {}

// CHECK-LABEL: define void @_Z1f2S3ILb0EE
void f(S3<false>) {}

struct S;

// CHECK-LABEL: define void @_Z1fM1SKFvvE
void f(void (S::*)() const) {}

// CHECK-LABEL: define void @_Z1fM1SFvvE
void f(void (S::*)()) {}

// CHECK-LABEL: define void @_Z1fi
void f(const int) { }

template<typename T, typename U> void ft1(U u, T t) { }

template<typename T> void ft2(T t, void (*)(T), void (*)(T)) { }

template<typename T, typename U = S1<T> > struct S4 { };
template<typename T> void ft3(S4<T>*) {  }

namespace NS {
  template<typename T> void ft1(T) { }
}

void g1() {
  // CHECK: @_Z3ft1IidEvT0_T_
  ft1<int, double>(1, 0);
  
  // CHECK: @_Z3ft2IcEvT_PFvS0_ES2_
  ft2<char>(1, 0, 0);
  
  // CHECK: @_Z3ft3IiEvP2S4IT_2S1IS1_EE
  ft3<int>(0);
  
  // CHECK: @_ZN2NS3ft1IiEEvT_
  NS::ft1<int>(1);
}

// Expressions
template<int I> struct S5 { };

template<int I> void ft4(S5<I>) { }
void g2() {
  // CHECK: @_Z3ft4ILi10EEv2S5IXT_EE
  ft4(S5<10>());
  
  // CHECK: @_Z3ft4ILi20EEv2S5IXT_EE
  ft4(S5<20>());
}

extern "C++" {
  // CHECK: @_Z1hv
 void h() { } 
}

// PR5019
extern "C" { struct a { int b; }; }

// CHECK: @_Z1fP1a
int f(struct a *x) {
    return x->b;
}

// PR5017
extern "C" {
struct Debug {
  const Debug& operator<< (unsigned a) const { return *this; }
};
Debug dbg;
// CHECK: @_ZNK5DebuglsEj
int main(void) {  dbg << 32 ;}
}

template<typename T> struct S6 {
  typedef int B;
};

template<typename T> void ft5(typename S6<T>::B) { }
// CHECK: @_Z3ft5IiEvN2S6IT_E1BE
template void ft5<int>(int);

template<typename T> class A {};

namespace NS {
template<typename T> bool operator==(const A<T>&, const A<T>&) { return true; }
}

// CHECK: @_ZN2NSeqIcEEbRK1AIT_ES5_
template bool NS::operator==(const ::A<char>&, const ::A<char>&);

namespace std {
template<typename T> bool operator==(const A<T>&, const A<T>&) { return true; }
}

// CHECK: @_ZSteqIcEbRK1AIT_ES4_
template bool std::operator==(const ::A<char>&, const ::A<char>&);

struct S {
  typedef int U;
};

template <typename T> typename T::U ft6(const T&) { return 0; }

// CHECK: @_Z3ft6I1SENT_1UERKS1_
template int ft6<S>(const S&);

template<typename> struct __is_scalar_type {
  enum { __value = 1 };
};

template<bool, typename> struct __enable_if { };

template<typename T> struct __enable_if<true, T> {
  typedef T __type;
};

// PR5063
template<typename T> typename __enable_if<__is_scalar_type<T>::__value, void>::__type ft7() { }

// CHECK: @_Z3ft7IiEN11__enable_ifIXsr16__is_scalar_typeIT_EE7__valueEvE6__typeEv
template void ft7<int>();
// CHECK: @_Z3ft7IPvEN11__enable_ifIXsr16__is_scalar_typeIT_EE7__valueEvE6__typeEv
template void ft7<void*>();

// PR5144
extern "C" {
void extern_f(void);
};

// CHECK: @extern_f
void extern_f(void) { }

struct S7 {
  S7();
  
  struct S { S(); };
  struct {
    S s;
  } a;
};

// PR5139
// CHECK: @_ZN2S7C2Ev
// CHECK: @_ZN2S7Ut_C1Ev
// CHECK: @_ZN2S7C1Ev
S7::S7() {}

// PR5063
template<typename T> typename __enable_if<(__is_scalar_type<T>::__value), void>::__type ft8() { }
// CHECK: @_Z3ft8IiEN11__enable_ifIXsr16__is_scalar_typeIT_EE7__valueEvE6__typeEv
template void ft8<int>();
// CHECK: @_Z3ft8IPvEN11__enable_ifIXsr16__is_scalar_typeIT_EE7__valueEvE6__typeEv
template void ft8<void*>();

// PR5796
namespace PR5796 {
template<typename> struct __is_scalar_type {
  enum { __value = 0 };
};

template<bool, typename> struct __enable_if {};
template<typename T> struct __enable_if<true, T> { typedef T __type; };
template<typename T>

// CHECK-LABEL: define linkonce_odr void @_ZN6PR57968__fill_aIiEENS_11__enable_ifIXntsr16__is_scalar_typeIT_EE7__valueEvE6__typeEv
typename __enable_if<!__is_scalar_type<T>::__value, void>::__type __fill_a() { };

void f() { __fill_a<int>(); }
}

namespace Expressions {
// Unary operators.

// CHECK-LABEL: define weak_odr void @_ZN11Expressions2f1ILi1EEEvPAplngT_Li2E_i
template <int i> void f1(int (*)[(-i) + 2]) { };
template void f1<1>(int (*)[1]);

// CHECK-LABEL: define weak_odr void @_ZN11Expressions2f2ILi1EEEvPApsT__i
template <int i> void f2(int (*)[+i]) { };
template void f2<1>(int (*)[1]);

// Binary operators.

// CHECK-LABEL: define weak_odr void @_ZN11Expressions2f3ILi1EEEvPAplT_T__i
template <int i> void f3(int (*)[i+i]) { };
template void f3<1>(int (*)[2]);

// CHECK-LABEL: define weak_odr void @_ZN11Expressions2f4ILi1EEEvPAplplLi2ET_T__i
template <int i> void f4(int (*)[2 + i+i]) { };
template void f4<1>(int (*)[4]);

// The ternary operator.
// CHECK-LABEL: define weak_odr void @_ZN11Expressions2f4ILb1EEEvPAquT_Li1ELi2E_i
template <bool b> void f4(int (*)[b ? 1 : 2]) { };
template void f4<true>(int (*)[1]);
}

struct Ops {
  Ops& operator+(const Ops&);
  Ops& operator-(const Ops&);
  Ops& operator&(const Ops&);
  Ops& operator*(const Ops&);
  
  void *v;
};

// CHECK-LABEL: define dereferenceable({{[0-9]+}}) %struct.Ops* @_ZN3OpsplERKS_
Ops& Ops::operator+(const Ops&) { return *this; }
// CHECK-LABEL: define dereferenceable({{[0-9]+}}) %struct.Ops* @_ZN3OpsmiERKS_
Ops& Ops::operator-(const Ops&) { return *this; }
// CHECK-LABEL: define dereferenceable({{[0-9]+}}) %struct.Ops* @_ZN3OpsanERKS_
Ops& Ops::operator&(const Ops&) { return *this; }
// CHECK-LABEL: define dereferenceable({{[0-9]+}}) %struct.Ops* @_ZN3OpsmlERKS_
Ops& Ops::operator*(const Ops&) { return *this; }

// PR5861
namespace PR5861 {
template<bool> class P;
template<> class P<true> {};

template<template <bool> class, bool>
struct Policy { };

template<typename T, typename = Policy<P, true> > class Alloc
{
  T *allocate(int, const void*) { return 0; }
};

// CHECK-LABEL: define weak_odr i8* @_ZN6PR58615AllocIcNS_6PolicyINS_1PELb1EEEE8allocateEiPKv
template class Alloc<char>;
}

// CHECK-LABEL: define void @_Z1fU13block_pointerFiiiE
void f(int (^)(int, int)) { }

void pr5966_foo() {
  extern int pr5966_i;
  pr5966_i = 0;
}

static int pr5966_j;

void pr5966_bar() {
  pr5966_j = 0;
}

namespace test0 {
  int ovl(int x);
  char ovl(double x);

  template <class T> void f(T, char (&buffer)[sizeof(ovl(T()))]) {}

  void test0() {
    char buffer[1];
    f(0.0, buffer);
  }
  // CHECK-LABEL: define void @_ZN5test05test0Ev()
  // CHECK-LABEL: define linkonce_odr void @_ZN5test01fIdEEvT_RAszcl3ovlcvS1__EE_c(

  void test1() {
    char buffer[sizeof(int)];
    f(1, buffer);
  }
  // CHECK-LABEL: define void @_ZN5test05test1Ev()
  // CHECK-LABEL: define linkonce_odr void @_ZN5test01fIiEEvT_RAszcl3ovlcvS1__EE_c(

  template <class T> void g(char (&buffer)[sizeof(T() + 5.0f)]) {}
  void test2() {
    char buffer[sizeof(float)];
    g<float>(buffer);
  }
  // CHECK-LABEL: define linkonce_odr void @_ZN5test01gIfEEvRAszplcvT__ELf40a00000E_c(

  template <class T> void h(char (&buffer)[sizeof(T() + 5.0)]) {}
  void test3() {
    char buffer[sizeof(double)];
    h<float>(buffer);
  }
  // CHECK-LABEL: define linkonce_odr void @_ZN5test01hIfEEvRAszplcvT__ELd4014000000000000E_c(

  template <class T> void j(char (&buffer)[sizeof(T().buffer)]) {}
  struct A { double buffer[128]; };
  void test4() {
    char buffer[1024];
    j<A>(buffer);
  }
  // CHECK-LABEL: define linkonce_odr void @_ZN5test01jINS_1AEEEvRAszdtcvT__E6buffer_c(

  template <class T> void k(char (&buffer)[sizeof(T() + 0.0f)]) {}
  void test5() {
    char buffer[sizeof(float)];
    k<float>(buffer);
  }
  // CHECK-LABEL: define linkonce_odr void @_ZN5test01kIfEEvRAszplcvT__ELf00000000E_c(

}

namespace test1 {
  template<typename T> struct X { };
  template<template<class> class Y, typename T> void f(Y<T>) { }
  // CHECK-LABEL: define weak_odr void @_ZN5test11fINS_1XEiEEvT_IT0_E
  template void f(X<int>);
}

// CHECK-LABEL: define internal void @_ZL27functionWithInternalLinkagev()
static void functionWithInternalLinkage() {  }
void g() { functionWithInternalLinkage(); }

namespace test2 {
  template <class T> decltype(((T*) 0)->member) read_member(T& obj) {
    return obj.member;
  }

  struct A { int member; } obj;
  int test() {
    return read_member(obj);
  }

  // CHECK-LABEL: define linkonce_odr i32 @_ZN5test211read_memberINS_1AEEEDtptcvPT_Li0E6memberERS2_(
}

// rdar://problem/9280586
namespace test3 {
  struct AmbiguousBase { int ab; };
  struct Path1 : AmbiguousBase { float p; };
  struct Path2 : AmbiguousBase { double p; };
  struct Derived : Path1, Path2 { };

  // CHECK-LABEL: define linkonce_odr i32 @_ZN5test38get_ab_1INS_7DerivedEEEDtptcvPT_Li0Esr5Path1E2abERS2_(
  template <class T> decltype(((T*) 0)->Path1::ab) get_ab_1(T &ref) { return ref.Path1::ab; }

  // CHECK-LABEL: define linkonce_odr i32 @_ZN5test38get_ab_2INS_7DerivedEEEDtptcvPT_Li0Esr5Path2E2abERS2_(
  template <class T> decltype(((T*) 0)->Path2::ab) get_ab_2(T &ref) { return ref.Path2::ab; }

  // CHECK-LABEL: define linkonce_odr float @_ZN5test37get_p_1INS_7DerivedEEEDtptcvPT_Li0Esr5Path1E1pERS2_(
  template <class T> decltype(((T*) 0)->Path1::p) get_p_1(T &ref) { return ref.Path1::p; }

  // CHECK-LABEL: define linkonce_odr double @_ZN5test37get_p_2INS_7DerivedEEEDtptcvPT_Li0Esr5Path2E1pERS2_(
  template <class T> decltype(((T*) 0)->Path2::p) get_p_2(T &ref) { return ref.Path2::p; }

  Derived obj;
  void test() {
    get_ab_1(obj);
    get_ab_2(obj);
    get_p_1(obj);
    get_p_2(obj);
  }
}

// CHECK-LABEL: define void @_ZN5test41gEPNS_3zedIXadL_ZNS_3foo3barEEEEE
namespace test4 {
  struct foo { int bar; };
  template <int (foo::*)>
  struct zed {};
  void g(zed<&foo::bar>*)
  {}
}
// CHECK-LABEL: define void @_ZN5test51gEPNS_3zedIXadL_ZNS_3foo3barEEEEE
namespace test5 {
  struct foo { static int bar; };
  template <int *>
  struct zed {};
  void g(zed<&foo::bar>*)
  {}
}
// CHECK-LABEL: define void @_ZN5test61gEPNS_3zedIXadL_ZNS_3foo3barEvEEEE
namespace test6 {
  struct foo { int bar(); };
  template <int (foo::*)()>
  struct zed {};
  void g(zed<&foo::bar>*)
  {}
}
// CHECK-LABEL: define void @_ZN5test71gEPNS_3zedIXadL_ZNS_3foo3barEvEEEE
namespace test7 {
  struct foo { static int bar(); };
  template <int (*f)()>
  struct zed {};
  void g(zed<&foo::bar>*)
  {}
}
// CHECK-LABEL: define weak_odr void @_ZN5test81AIL_ZNS_1B5valueEEE3incEv
namespace test8 {
  template <int &counter> class A { void inc() { counter++; } };
  class B { public: static int value; };
  template class A<B::value>;
}
// CHECK: declare void @_ZN5test91fIiNS_3barEEEvRKNT0_3baz1XE
namespace test9 {
  template<class T>
  struct foo {
    typedef T X;
  };
  struct bar {
    typedef foo<int> baz;
  };
  template <class zaz, class zed>
  void f(const typename zed::baz::X&);
  void g() {
    f<int, bar>( 0);
  }
}

// <rdar://problem/7825453>
namespace test10 {
  template <char P1> struct S {};
  template <char P2> void f(struct S<false ? 'a' : P2> ) {}

  // CHECK-LABEL: define weak_odr void @_ZN6test101fILc3EEEvNS_1SIXquLb0ELc97ET_EEE(
  template void f<(char) 3>(struct S<3>);
}

namespace test11 {
  // CHECK: @_ZN6test111fEz
  void f(...) { }

  struct A {
    void f(...);
  };
  
  // CHECK: @_ZN6test111A1fEz
  void A::f(...) { }
}

namespace test12 {

  // CHECK: _ZN6test121fENS_1AILt33000EEE
  template <unsigned short> struct A { };
  void f(A<33000>) { }
}

// PR7446
namespace test13 {
  template <template <class> class T> class A {};
  template <class U> class B {};

  template <template<class> class T> void foo(const A<T> &a) {}

  // CHECK-LABEL: define weak_odr void @_ZN6test133fooINS_1BEEEvRKNS_1AIT_EE(
  template void foo(const A<B> &a);
}

namespace test14 {
  extern "C" {
    struct S {
      static int a(), x;
    };
    // CHECK-LABEL: define i32 @_ZN6test141S1aEv
    // CHECK: load i32, i32* @_ZN6test141S1xE
    int S::a() { return S::x; }
  }
}

// rdar://problem/8204122
namespace test15 {
  enum E { e = 3 };
  template <int I> struct S {};

  template <int I> void f(S<I + e>) {}

  // CHECK-LABEL: define weak_odr void @_ZN6test151fILi7EEEvNS_1SIXplT_LNS_1EE3EEEE(
  template void f<7>(S<7 + e>);
}

// rdar://problem/8302148
namespace test17 {
  template <int N> struct A {};

  struct B {
    static int foo(void);
  };

  template <class T> A<sizeof(T::foo())> func(void);

  // CHECK-LABEL: define void @_ZN6test174testEv()
  // CHECK: call {{.*}} @_ZN6test174funcINS_1BEEENS_1AIXszclsrT_3fooEEEEv()
  void test() {
    func<B>();
  }
}

// PR7891
namespace test18 {
  struct A {
    int operator+();
    int operator-();
    int operator*();
    int operator&();
  };
  template <int (A::*)()> struct S {};

  template <typename T> void f(S<&T::operator+>) {}
  template void f<A>(S<&A::operator+>);

  template <typename T> void f(S<&T::operator- >) {}
  template void f<A>(S<&A::operator- >);

  template <typename T> void f(S<&T::operator*>) {}
  template void f<A>(S<&A::operator*>);

  template <typename T> void f(S<&T::operator&>) {}
  template void f<A>(S<&A::operator&>);

  // CHECK-LABEL: define weak_odr void @_ZN6test181fINS_1AEEEvNS_1SIXadsrT_onplEEE
  // CHECK-LABEL: define weak_odr void @_ZN6test181fINS_1AEEEvNS_1SIXadsrT_onmiEEE
  // CHECK-LABEL: define weak_odr void @_ZN6test181fINS_1AEEEvNS_1SIXadsrT_onmlEEE
  // CHECK-LABEL: define weak_odr void @_ZN6test181fINS_1AEEEvNS_1SIXadsrT_onanEEE
}

// rdar://problem/8332117
namespace test19 {
  struct A {
    template <typename T> int f();
    int operator+();
    operator int();
    template <typename T> int operator-();
  };

  template <int (A::*)()> struct S {};

  template <typename T> void g (S<&T::template f<int> >) {}
  template <typename T> void g (S<&T::operator+ >) {}
  template <typename T> void g (S<&T::operator int>) {}
  template <typename T> void g (S<&T::template operator- <double> >) {}

  // CHECK-LABEL: define weak_odr void @_ZN6test191gINS_1AEEEvNS_1SIXadsrT_1fIiEEEE(
  template void g<A>(S<&A::f<int> >);
  // CHECK-LABEL: define weak_odr void @_ZN6test191gINS_1AEEEvNS_1SIXadsrT_onplEEE(
  template void g<A>(S<&A::operator+>);
  // CHECK-LABEL: define weak_odr void @_ZN6test191gINS_1AEEEvNS_1SIXadsrT_oncviEEE(
  template void g<A>(S<&A::operator int>);
  // CHECK-LABEL: define weak_odr void @_ZN6test191gINS_1AEEEvNS_1SIXadsrT_onmiIdEEEE(
  template void g<A>(S<&A::operator-<double> >);
}

namespace test20 {
  template <class T> T *f(const T&);
  template <class T> T *f(T*);

  // CHECK-LABEL: define weak_odr void @_ZN6test205test0IiEEvDTcl1fIPT_ELi0EEE(
  template <class T> void test0(decltype(f<T*>(0))) {}
  template void test0<int>(decltype(f<int*>(0)));

  // CHECK-LABEL: define weak_odr void @_ZN6test205test1IiEEvDTcl1fIEcvT__EEE(
  template <class T> void test1(decltype(f<>(T()))) {}
  template void test1<int>(decltype(f<>(int())));
}

// rdar:// 8620510
namespace test21 {
  // CHECK-LABEL: define void @_ZN6test2112vla_arg_funcEiPA_i(
  void vla_arg_func(int X, int a[X][X]) {}
}

namespace test22 {
  // CHECK-LABEL: define void @_ZN6test221fEDn(
  void f(decltype(nullptr)) { }
}

// rdar://problem/8913416
namespace test23 {
  typedef void * const vpc;

  // CHECK-LABEL: define void @_ZN6test231fERA10_KPv(
  void f(vpc (&)[10]) {}

  typedef vpc vpca5[5];
  void f(vpca5 volatile (&)[10]) {}
  // CHECK-LABEL: define void @_ZN6test231fERA10_A5_VKPv(
}

namespace test24 {
  void test0() {
    extern int foo();
    // CHECK: call i32 @_ZN6test243fooEv()
    foo();
  }

  static char bar() {}
  void test1() {
    // CHECK: call signext i8 @_ZN6test24L3barEv()
    bar();
  }
}

// rdar://problem/8806641
namespace test25 {
  template <void (*fn)()> struct A {
    static void call() { fn(); }
  };
  void foo();
  void test() {
    // CHECK: call void @_ZN6test251AIXadL_ZNS_3fooEvEEE4callEv()
    A<foo>::call();
  }
}

namespace test26 {
  template <template <class> class T> void foo(decltype(T<float>::object) &object) {}

  template <class T> struct holder { static T object; };

  void test() {
    float f;

    // CHECK: call void @_ZN6test263fooINS_6holderEEEvRDtsrT_IfE6objectE(
    foo<holder>(f);
  }
}

namespace test27 {
  struct A {
    struct inner {
      float object;
    };

    float meth();
  };
  typedef A Alias;

  template <class T> void a(decltype(T::inner::object) &object) {}
  template <class T> void b(decltype(T().Alias::meth()) &object) {}

  void test() {
    float f;
    // CHECK: call void @_ZN6test271aINS_1AEEEvRDtsrNT_5innerE6objectE(
    a<A>(f);
    // CHECK: call void @_ZN6test271bINS_1AEEEvRDTcldtcvT__Esr5AliasE4methEE(
    b<A>(f);
  }
}

// An injected class name type in a unresolved-name.
namespace test28 {
  template <class T> struct A {
    enum { bit };
  };

  template <class T> void foo(decltype(A<T>::A::bit) x);

  void test() {
    foo<char>(A<char>::bit);
    // CHECK: call void @_ZN6test283fooIcEEvDtsr1AIT_E1AE3bitE(
  }
}

// An enclosing template type parameter in an unresolved-name.
namespace test29 {
  template <class T> struct A {
    template <class U> static void foo(decltype(T::fn(U())) x);
  };
  struct B { static int fn(int); static long fn(long); };

  void test() {
    A<B>::foo<int>(0);
    // CHECK: call void @_ZN6test291AINS_1BEE3fooIiEEvDTclsrS1_2fncvT__EEE(
  }
}

// An enclosing template template parameter in an unresolved-name.
namespace test30 {
  template <template <class> class T> struct A {
    template <class U> static void foo(decltype(T<U>::fn()) x);
  };
  template <class T> struct B { static T fn(); };

  void test() {
    A<B>::foo<int>(0);
    // CHECK: call void @_ZN6test301AINS_1BEE3fooIiEEvDTclsrS1_IT_EE2fnEE(
  }
}

namespace test31 { // instantiation-dependent mangling of decltype
  int x;
  template<class T> auto f1(T p)->decltype(x) { return 0; }
  // The return type in the mangling of the template signature
  // is encoded as "i".
  template<class T> auto f2(T p)->decltype(p) { return 0; }
  // The return type in the mangling of the template signature
  // is encoded as "Dtfp_E".
  void g(int);
  template<class T> auto f3(T p)->decltype(g(p)) {}

  // CHECK-LABEL: define weak_odr i32 @_ZN6test312f1IiEEiT_(
  template int f1(int);
  // CHECK-LABEL: define weak_odr i32 @_ZN6test312f2IiEEDtfp_ET_
  template int f2(int);
  // CHECK-LABEL: define weak_odr void @_ZN6test312f3IiEEDTcl1gfp_EET_
  template void f3(int);
}

// PR10205
namespace test32 {
  template<typename T, int=T::value> struct A {
    typedef int type;
  };
  struct B { enum { value = 4 }; };

  template <class T> typename A<T>::type foo() { return 0; }
  void test() {
    foo<B>();
    // CHECK: call i32 @_ZN6test323fooINS_1BEEENS_1AIT_XsrS3_5valueEE4typeEv()
  }
}

namespace test33 {
  template <class T> struct X {
    enum { value = T::value };
  };

  template<typename T, int=X<T>::value> struct A {
    typedef int type;
  };
  struct B { enum { value = 4 }; };

  template <class T> typename A<T>::type foo() { return 0; }

  void test() {
    foo<B>();
    // CHECK: call i32 @_ZN6test333fooINS_1BEEENS_1AIT_Xsr1XIS3_EE5valueEE4typeEv()
  }
}

namespace test34 {
  // Mangling for instantiation-dependent decltype expressions.
  template<typename T>
  void f(decltype(sizeof(decltype(T() + T())))) {}

  // CHECK-LABEL: define weak_odr void @_ZN6test341fIiEEvDTstDTplcvT__EcvS1__EEE
  template void f<int>(decltype(sizeof(1)));

  // Mangling for non-instantiation-dependent sizeof expressions.
  template<unsigned N>
  void f2(int (&)[N + sizeof(int*)]) {}

  // CHECK-LABEL: define weak_odr void @_ZN6test342f2ILj4EEEvRAplT_Lm8E_i
  template void f2<4>(int (&)[4 + sizeof(int*)]);

  // Mangling for non-instantiation-dependent sizeof expressions
  // involving an implicit conversion of the result of the sizeof.
  template<unsigned long long N>
  void f3(int (&)[N + sizeof(int*)]) {}

  // CHECK-LABEL: define weak_odr void @_ZN6test342f3ILy4EEEvRAplT_Ly8E_i
  template void f3<4>(int (&)[4 + sizeof(int*)]);

  // Mangling for instantiation-dependent sizeof() expressions as
  // template arguments.
  template<unsigned> struct A { };

  template<typename T> void f4(::test34::A<sizeof(sizeof(decltype(T() + T())))>) { }

  // CHECK-LABEL: define weak_odr void @_ZN6test342f4IiEEvNS_1AIXszstDTplcvT__EcvS2__EEEEE
  template void f4<int>(A<sizeof(sizeof(int))>);
}

namespace test35 {
  // Dependent operator names of unknown arity.
  struct A { 
    template<typename U> A operator+(U) const;
  };

  template<typename T>
  void f1(decltype(sizeof(&T::template operator+<int>))) {}

  // CHECK-LABEL: define weak_odr void @_ZN6test352f1INS_1AEEEvDTszadsrT_onplIiEE
  template void f1<A>(__SIZE_TYPE__);
}

namespace test36 {
  template<unsigned> struct A { };

  template<typename ...Types>
  auto f1(Types... values) -> A<sizeof...(values)> { }

  // CHECK: define weak_odr {{.*}} @_ZN6test362f1IJifEEENS_1AIXsZfp_EEEDpT_
  template A<2> f1(int, float);
}

namespace test37 {
  struct foo {
    struct {
    } a;
    typedef struct { } b;
    typedef struct { } *c;
    struct {
    } d;
  };
  template<typename T> void func(T) { }
  void test() {
    // CHECK-LABEL: define linkonce_odr void @_ZN6test374funcINS_3fooUt_EEEvT_
    func(foo().a);
    // CHECK-LABEL: define linkonce_odr void @_ZN6test374funcINS_3fooUt0_EEEvT_
    func(*foo::c());
    // CHECK-LABEL: define linkonce_odr void @_ZN6test374funcINS_3fooUt1_EEEvT_
    func(foo().d);
  }
}

// CHECK-LABEL: define void @_Z6ASfuncPU3AS3i
void ASfunc(__attribute__((address_space(3))) int* x) {}

namespace test38 {
  // CHECK-LABEL: define linkonce_odr void @_ZN6test384funcINS_3fooUt_EEEvT_
  typedef struct {
    struct {
    } a;
  } foo;

  template <typename T> void func(T) {}
  void test() { func(foo().a); }
}

namespace test39 {
  // CHECK-LABEL: define internal void @"_ZN6test394funcINS_3$_03$_1EEEvT_"
  typedef struct {
    struct {} a;
  } *foo;
  template<typename T> void func(T) {}
  void test() {
    foo x;
    func(x->a);
  }
}

namespace test40 {
  // CHECK: i32* {{.*}} @_ZZN6test401fEvE1a_0
  void h(int&);
  inline void f() {
    if (0) {
      static int a;
    }
    static int a;
    h(a);
  };
  void g() { f(); }
}

namespace test41 {
  // CHECK: define linkonce_odr void @_ZN6test414funcINS_1XEEEvNS_3fooILi20ES1_EE
  template <int i, class T> struct foo {
    template <class T2 = T> friend void func(foo x) {}
  };

  struct X {};

  void g() { func(foo<20, X>()); }
}

namespace test42 {
  // CHECK: define linkonce_odr void @_ZN6test424funcINS_1XEEEvNS_3fooILi20ES1_EE
  template <int i, template <class> class T> struct foo {
    template <template <class> class T2 = T> friend void func(foo x) {}
  };

  template <class V> struct X {
  };

  void g() { func(foo<20, X>()); }
}

namespace test43 {
  // CHECK-LABEL: define void @_ZN6test431gEPNS_3zedIXadL_ZNS_3fooUt_3barEEEEE
  struct foo { union { int bar; }; };
  template <int (foo::*)>
  struct zed {};
  void g(zed<&foo::bar>*)
  {}
}

namespace test44 {
  struct foo { void bar() __restrict { }; } obj;

  void f() {
    obj.bar();
  }
  // CHECK-LABEL: define linkonce_odr void @_ZN6test443foo3barEv(%"struct.test44::foo"* %this)
}

namespace test45 {
  struct S {
    enum e {};
  };
  template <typename T>
  void f(enum T::e *) {}
  template void f<S>(S::e *);
  // CHECK-LABEL: define weak_odr void @_ZN6test451fINS_1SEEEvPTeNT_1eE(i32* %0)
}

namespace test46 {
  struct S {
    struct s {};
  };
  template <typename T>
  void f(struct T::s *) {}
  template void f<S>(S::s *);
  // CHECK-LABEL: define weak_odr void @_ZN6test461fINS_1SEEEvPTsNT_1sE(%"struct.test46::S::s"* %0)
}

namespace test47 {
  struct S {
    class c {};
  };
  template <typename T>
  void f(class T::c *) {}
  template void f<S>(S::c *);
  // CHECK-LABEL: define weak_odr void @_ZN6test471fINS_1SEEEvPTsNT_1cE(%"class.test47::S::c"* %0)
}

namespace test48 {
  struct S {
    union u {};
  };
  template <typename T>
  void f(union T::u *) {}
  template void f<S>(S::u *);
  // CHECK-LABEL: define weak_odr void @_ZN6test481fINS_1SEEEvPTuNT_1uE(%"union.test48::S::u"* %0)
}

namespace test49 {
  template <int>
  struct S {};

  template <template <int> class T>
  T<3> fin(T<3>);

  auto v = fin<S>;
  // CHECK-LABEL: declare void @_ZN6test493finINS_1SEEET_ILi3EES3_()
}

namespace test50 {
  template <int>
  struct S {};

  template <template <int> class T>
  T<3> fin(T<4>);

  auto v = fin<S>;
  // CHECK-LABEL: declare void @_ZN6test503finINS_1SEEET_ILi3EES2_ILi4EE()
}

namespace test51 {
  template <typename T>
  decltype(T().~T()) fun() {}
  template void fun<int>();
  // CHECK-LABEL: @_ZN6test513funIiEEDTcldtcvT__EdnS1_EEv
  template void fun<X>();
  // CHECK-LABEL: @_ZN6test513funI1XEEDTcldtcvT__EdnS2_EEv
  template void fun<S1<int> >();
  // CHECK-LABEL: @_ZN6test513funI2S1IiEEEDTcldtcvT__EdnS3_EEv

  enum E {};
  template <typename T>
  struct X {
    struct Y {};
  };

  template <typename T>
  decltype(S1<T>().~S1<T>()) fun1() {};
  template <typename U, typename T>
  decltype(U().~S1<T>()) fun2() {}
  template <typename U, typename T>
  decltype(S1<T>().~U()) fun3() {}
  template <typename T>
  decltype(S1<T>().~S1<T>(), S1<T>().~S1<T>()) fun4() {};
  template <typename T>
  decltype(S1<int>().~S1<T>()) fun5(){};
  template <template <typename T> class U>
  decltype(S1<int>().~U<int>()) fun6(){};
  template <typename T>
  decltype(E().E::~T()) fun7() {}
  template <template <typename> class U>
  decltype(X<int>::Y().U<int>::Y::~Y()) fun8() {}
  template void fun1<int>();
  // CHECK-LABEL: @_ZN6test514fun1IiEEDTcldtcv2S1IT_E_Edn2S1IS2_EEEv
  template void fun2<S1<int>, int>();
  // CHECK-LABEL: @_ZN6test514fun2I2S1IiEiEEDTcldtcvT__Edn2S1IT0_EEEv
  template void fun3<S1<int>, int>();
  // CHECK-LABEL: @_ZN6test514fun3I2S1IiEiEEDTcldtcvS1_IT0_E_EdnT_EEv
  template void fun4<int>();
  // CHECK-LABEL: @_ZN6test514fun4IiEEDTcmcldtcv2S1IT_E_Edn2S1IS2_EEcldtcvS3__Edn2S1IS2_EEEv
  template void fun5<int>();
  // CHECK-LABEL: @_ZN6test514fun5IiEEDTcldtcv2S1IiE_Edn2S1IT_EEEv
  template void fun6<S1>();
  // CHECK-LABEL: @_ZN6test514fun6I2S1EEDTcldtcvS1_IiE_EdnT_IiEEEv
  template void fun7<E>();
  // CHECK-LABEL: @_ZN6test514fun7INS_1EEEEDTcldtcvS1__Esr1EEdnT_EEv
  template void fun8<X>();
}

namespace test52 {
struct X {};
void operator+(X);
template <typename... T>
auto f4(T... x) -> decltype(operator+(x...));
// CHECK-LABEL: @_ZN6test522f4IJNS_1XEEEEDTclonplspfp_EEDpT_
void use() { f4(X{}); }
}

namespace test53 {
struct c {
  using t1 = struct { int z; };
  using t2 = struct { double z; };
  using t3 = struct { float z; };
  using t4 = struct { float z; };

  __attribute__((used)) c(t1) {}
  __attribute__((used)) c(t2) {}
  __attribute__((used)) c(t3) {}
  __attribute__((used)) c(t4) {}
  // CHECK-LABEL: @_ZN6test531cC2ENS0_2t1E
  // CHECK-LABEL: @_ZN6test531cC2ENS0_2t2E
  // CHECK-LABEL: @_ZN6test531cC2ENS0_2t3E
  // CHECK-LABEL: @_ZN6test531cC2ENS0_2t4E
};
}

namespace test54 {
struct c {
  using t1 = struct { int z; } *;
  using t2 = struct { double z; } *;

  __attribute__((used)) c(t1) {}
  __attribute__((used)) c(t2) {}
  // CHECK-LABEL: @_ZN6test541cC2EPNS0_Ut_E
  // CHECK-LABEL: @_ZN6test541cC2EPNS0_Ut0_E
};
}

namespace test55 {
enum E { R };

template <typename T>
void fn(T, __underlying_type(T)) {}

template void fn<E>(E, __underlying_type(E));
// CHECK-LABEL: @_ZN6test552fnINS_1EEEEvT_U3eutS2_
}

namespace test56 {
  struct A { A *operator->(); int n; } a;
  template<int N> void f(decltype(a->n + N)) {}
  // CHECK-LABEL: @_ZN6test561fILi0EEEvDTplptL_ZNS_1aEE1nT_E
  template void f<0>(int);
}

namespace test57 {
  struct X { template <int N> int f(); } x;
  template<int N> void f(decltype(x.f<0>() + N)) {}
  // CHECK-LABEL: @_ZN6test571fILi0EEEvDTplcldtL_ZNS_1xEE1fIXLi0EEEET_E
  template void f<0>(int);
}

namespace test58 {
  struct State {
   bool m_fn1();
  } a;
  template <class T> struct identity { typedef T type; };
  struct A {
   template <typename T> A(T, bool (identity<T>::type::*)());
  };
  // CHECK-LABEL: @_ZN6test581AC1INS_5StateEEET_MNS_8identityIS3_E4typeEFbvE
  void fn1() { A(a, &State::m_fn1); }
}