Richard Smith | 762bb9d | 2011-10-13 22:29:44 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=x86_64-apple-darwin9 | FileCheck %s |
Douglas Gregor | 46287c7 | 2010-01-29 16:37:09 +0000 | [diff] [blame] | 2 | |
Sebastian Redl | b76ffc5 | 2012-02-25 20:51:07 +0000 | [diff] [blame] | 3 | namespace std { |
| 4 | typedef decltype(sizeof(int)) size_t; |
| 5 | |
| 6 | // libc++'s implementation |
| 7 | template <class _E> |
| 8 | class initializer_list |
| 9 | { |
| 10 | const _E* __begin_; |
| 11 | size_t __size_; |
| 12 | |
| 13 | initializer_list(const _E* __b, size_t __s) |
| 14 | : __begin_(__b), |
| 15 | __size_(__s) |
| 16 | {} |
| 17 | |
| 18 | public: |
| 19 | typedef _E value_type; |
| 20 | typedef const _E& reference; |
| 21 | typedef const _E& const_reference; |
| 22 | typedef size_t size_type; |
| 23 | |
| 24 | typedef const _E* iterator; |
| 25 | typedef const _E* const_iterator; |
| 26 | |
| 27 | initializer_list() : __begin_(nullptr), __size_(0) {} |
| 28 | |
| 29 | size_t size() const {return __size_;} |
| 30 | const _E* begin() const {return __begin_;} |
| 31 | const _E* end() const {return __begin_ + __size_;} |
| 32 | }; |
| 33 | } |
| 34 | |
Douglas Gregor | 46287c7 | 2010-01-29 16:37:09 +0000 | [diff] [blame] | 35 | template < bool condition, typename T = void > |
| 36 | struct enable_if { typedef T type; }; |
| 37 | |
| 38 | template< typename T > |
| 39 | struct enable_if< false, T > {}; |
| 40 | |
| 41 | // PR5876 |
| 42 | namespace Casts { |
| 43 | template< unsigned O > |
| 44 | void implicit(typename enable_if< O <= 4 >::type* = 0) { |
| 45 | } |
| 46 | |
| 47 | template< unsigned O > |
| 48 | void cstyle(typename enable_if< O <= (unsigned)4 >::type* = 0) { |
| 49 | } |
| 50 | |
| 51 | template< unsigned O > |
| 52 | void functional(typename enable_if< O <= unsigned(4) >::type* = 0) { |
| 53 | } |
| 54 | |
| 55 | template< unsigned O > |
| 56 | void static_(typename enable_if< O <= static_cast<unsigned>(4) >::type* = 0) { |
| 57 | } |
| 58 | |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 59 | template <unsigned O, typename T> |
| 60 | void reinterpret_(typename enable_if<O <= sizeof(reinterpret_cast<T *>(0))>::type * = 0) { |
| 61 | } |
| 62 | |
| 63 | template <typename T, T *p> |
| 64 | void const_(typename enable_if<0 <= sizeof(const_cast<T *>(p))>::type * = 0) { |
| 65 | } |
| 66 | |
| 67 | template <typename T, T *p> |
| 68 | void dynamic_(typename enable_if<0 <= sizeof(dynamic_cast<T *>(p))>::type * = 0) { |
| 69 | } |
| 70 | |
Richard Smith | 967ecd3 | 2011-02-21 20:10:02 +0000 | [diff] [blame] | 71 | template< typename T > |
| 72 | void auto_(decltype(new auto(T()))) { |
| 73 | } |
| 74 | |
Richard Smith | 41576d4 | 2012-02-06 02:54:51 +0000 | [diff] [blame] | 75 | template< typename T > |
| 76 | void scalar_(decltype(T(), int())) { |
| 77 | } |
| 78 | |
Douglas Gregor | 46287c7 | 2010-01-29 16:37:09 +0000 | [diff] [blame] | 79 | template <unsigned N> struct T {}; |
| 80 | |
| 81 | template <int N> T<N> f() { return T<N>(); } |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 82 | |
| 83 | extern int i; |
| 84 | extern struct S {} s; |
Douglas Gregor | 46287c7 | 2010-01-29 16:37:09 +0000 | [diff] [blame] | 85 | |
Stephen Lin | 93ab6bf | 2013-08-15 06:47:53 +0000 | [diff] [blame] | 86 | // CHECK-LABEL: define weak_odr void @_ZN5Casts8implicitILj4EEEvPN9enable_ifIXleT_Li4EEvE4typeE |
Douglas Gregor | 46287c7 | 2010-01-29 16:37:09 +0000 | [diff] [blame] | 87 | template void implicit<4>(void*); |
Stephen Lin | 93ab6bf | 2013-08-15 06:47:53 +0000 | [diff] [blame] | 88 | // CHECK-LABEL: define weak_odr void @_ZN5Casts6cstyleILj4EEEvPN9enable_ifIXleT_cvjLi4EEvE4typeE |
Douglas Gregor | 46287c7 | 2010-01-29 16:37:09 +0000 | [diff] [blame] | 89 | template void cstyle<4>(void*); |
Stephen Lin | 93ab6bf | 2013-08-15 06:47:53 +0000 | [diff] [blame] | 90 | // CHECK-LABEL: define weak_odr void @_ZN5Casts10functionalILj4EEEvPN9enable_ifIXleT_cvjLi4EEvE4typeE |
Douglas Gregor | 46287c7 | 2010-01-29 16:37:09 +0000 | [diff] [blame] | 91 | template void functional<4>(void*); |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 92 | // CHECK-LABEL: define weak_odr void @_ZN5Casts7static_ILj4EEEvPN9enable_ifIXleT_scjLi4EEvE4typeE |
Douglas Gregor | 46287c7 | 2010-01-29 16:37:09 +0000 | [diff] [blame] | 93 | template void static_<4>(void*); |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 94 | // CHECK-LABEL: define weak_odr void @_ZN5Casts12reinterpret_ILj4EiEEvPN9enable_ifIXleT_szrcPT0_Li0EEvE4typeE |
| 95 | template void reinterpret_<4, int>(void*); |
| 96 | // CHECK-LABEL: define weak_odr void @_ZN5Casts6const_IiXadL_ZNS_1iEEEEEvPN9enable_ifIXleLi0EszccPT_T0_EvE4typeE |
| 97 | template void const_<int, &i>(void*); |
| 98 | // CHECK-LABEL: define weak_odr void @_ZN5Casts8dynamic_INS_1SEXadL_ZNS_1sEEEEEvPN9enable_ifIXleLi0EszdcPT_T0_EvE4typeE |
| 99 | template void dynamic_<struct S, &s>(void*); |
Douglas Gregor | 46287c7 | 2010-01-29 16:37:09 +0000 | [diff] [blame] | 100 | |
Stephen Lin | 93ab6bf | 2013-08-15 06:47:53 +0000 | [diff] [blame] | 101 | // CHECK-LABEL: define weak_odr void @_ZN5Casts1fILi6EEENS_1TIXT_EEEv |
Douglas Gregor | 46287c7 | 2010-01-29 16:37:09 +0000 | [diff] [blame] | 102 | template T<6> f<6>(); |
Richard Smith | 967ecd3 | 2011-02-21 20:10:02 +0000 | [diff] [blame] | 103 | |
Stephen Lin | 93ab6bf | 2013-08-15 06:47:53 +0000 | [diff] [blame] | 104 | // CHECK-LABEL: define weak_odr void @_ZN5Casts5auto_IiEEvDTnw_DapicvT__EEE( |
Richard Smith | 967ecd3 | 2011-02-21 20:10:02 +0000 | [diff] [blame] | 105 | template void auto_<int>(int*); |
Richard Smith | 41576d4 | 2012-02-06 02:54:51 +0000 | [diff] [blame] | 106 | |
Stephen Lin | 93ab6bf | 2013-08-15 06:47:53 +0000 | [diff] [blame] | 107 | // CHECK-LABEL: define weak_odr void @_ZN5Casts7scalar_IiEEvDTcmcvT__Ecvi_EE( |
Richard Smith | 41576d4 | 2012-02-06 02:54:51 +0000 | [diff] [blame] | 108 | template void scalar_<int>(int); |
Douglas Gregor | 46287c7 | 2010-01-29 16:37:09 +0000 | [diff] [blame] | 109 | } |
John McCall | 5a7e6f7 | 2011-04-28 02:52:03 +0000 | [diff] [blame] | 110 | |
| 111 | namespace test1 { |
| 112 | short foo(short); |
| 113 | int foo(int); |
| 114 | |
Stephen Lin | 93ab6bf | 2013-08-15 06:47:53 +0000 | [diff] [blame] | 115 | // CHECK-LABEL: define linkonce_odr signext i16 @_ZN5test11aIsEEDTcl3foocvT__EEES1_( |
John McCall | 5a7e6f7 | 2011-04-28 02:52:03 +0000 | [diff] [blame] | 116 | template <class T> auto a(T t) -> decltype(foo(T())) { return foo(t); } |
| 117 | |
Stephen Lin | 93ab6bf | 2013-08-15 06:47:53 +0000 | [diff] [blame] | 118 | // CHECK-LABEL: define linkonce_odr signext i16 @_ZN5test11bIsEEDTcp3foocvT__EEES1_( |
John McCall | 5a7e6f7 | 2011-04-28 02:52:03 +0000 | [diff] [blame] | 119 | template <class T> auto b(T t) -> decltype((foo)(T())) { return (foo)(t); } |
| 120 | |
| 121 | void test(short s) { |
| 122 | a(s); |
| 123 | b(s); |
| 124 | } |
| 125 | } |
John McCall | fb44de9 | 2011-05-01 22:35:37 +0000 | [diff] [blame] | 126 | |
| 127 | namespace test2 { |
| 128 | template <class T> void a(T x, decltype(x()) y) {} |
| 129 | template <class T> auto b(T x) -> decltype(x()) { return x(); } |
| 130 | template <class T> void c(T x, void (*p)(decltype(x()))) {} |
| 131 | template <class T> void d(T x, auto (*p)() -> decltype(x())) {} |
| 132 | template <class T> void e(auto (*p)(T y) -> decltype(y())) {} |
| 133 | template <class T> void f(void (*p)(T x, decltype(x()) y)) {} |
| 134 | template <class T> void g(T x, decltype(x()) y) { |
| 135 | static decltype(x()) variable; |
| 136 | variable = 0; |
| 137 | } |
| 138 | template <class T> void h(T x, decltype((decltype(x())(*)()) 0) y) {} |
| 139 | template <class T> void i(decltype((auto (*)(T x) -> decltype(x())) 0) y) {} |
| 140 | |
| 141 | float foo(); |
| 142 | void bar(float); |
| 143 | float baz(float(*)()); |
| 144 | void fred(float(*)(), float); |
| 145 | |
Stephen Lin | 93ab6bf | 2013-08-15 06:47:53 +0000 | [diff] [blame] | 146 | // CHECK-LABEL: define void @_ZN5test211instantiateEv |
John McCall | fb44de9 | 2011-05-01 22:35:37 +0000 | [diff] [blame] | 147 | void instantiate() { |
| 148 | // CHECK: call void @_ZN5test21aIPFfvEEEvT_DTclfL0p_EE( |
| 149 | a(foo, 0.0f); |
| 150 | // CHECK: call float @_ZN5test21bIPFfvEEEDTclfp_EET_( |
| 151 | (void) b(foo); |
| 152 | // CHECK: call void @_ZN5test21cIPFfvEEEvT_PFvDTclfL1p_EEE( |
| 153 | c(foo, bar); |
| 154 | // CHECK: call void @_ZN5test21dIPFfvEEEvT_PFDTclfL0p_EEvE( |
| 155 | d(foo, foo); |
| 156 | // CHECK: call void @_ZN5test21eIPFfvEEEvPFDTclfp_EET_E( |
| 157 | e(baz); |
| 158 | // CHECK: call void @_ZN5test21fIPFfvEEEvPFvT_DTclfL0p_EEE( |
| 159 | f(fred); |
| 160 | // CHECK: call void @_ZN5test21gIPFfvEEEvT_DTclfL0p_EE( |
| 161 | g(foo, 0.0f); |
| 162 | // CHECK: call void @_ZN5test21hIPFfvEEEvT_DTcvPFDTclfL0p_EEvELi0EE( |
| 163 | h(foo, foo); |
| 164 | // CHECK: call void @_ZN5test21iIPFfvEEEvDTcvPFDTclfp_EET_ELi0EE( |
| 165 | i<float(*)()>(baz); |
| 166 | } |
| 167 | |
| 168 | // CHECK: store float {{.*}}, float* @_ZZN5test21gIPFfvEEEvT_DTclfL0p_EEE8variable, |
| 169 | } |
Douglas Gregor | 63f62df | 2011-06-05 05:27:58 +0000 | [diff] [blame] | 170 | |
| 171 | namespace test3 { |
| 172 | template <class T, class U> void a(T x, U y, decltype(x.*y) z) {} |
| 173 | |
| 174 | struct X { |
| 175 | int *member; |
| 176 | }; |
| 177 | |
Stephen Lin | 93ab6bf | 2013-08-15 06:47:53 +0000 | [diff] [blame] | 178 | // CHECK-LABEL: define void @_ZN5test311instantiateEv |
Douglas Gregor | 63f62df | 2011-06-05 05:27:58 +0000 | [diff] [blame] | 179 | void instantiate() { |
| 180 | X x; |
| 181 | int *ip; |
| 182 | // CHECK: call void @_ZN5test31aINS_1XEMS1_PiEEvT_T0_DTdsfL0p_fL0p0_E |
| 183 | a(x, &X::member, ip); |
| 184 | } |
| 185 | } |
Sebastian Redl | b76ffc5 | 2012-02-25 20:51:07 +0000 | [diff] [blame] | 186 | |
| 187 | namespace test4 { |
| 188 | struct X { |
| 189 | X(int); |
Sebastian Redl | b76ffc5 | 2012-02-25 20:51:07 +0000 | [diff] [blame] | 190 | }; |
| 191 | |
| 192 | template <typename T> |
| 193 | void tf1(decltype(new T(1)) p) |
| 194 | {} |
| 195 | |
| 196 | template <typename T> |
| 197 | void tf2(decltype(new T({1})) p) |
| 198 | {} |
| 199 | |
| 200 | template <typename T> |
| 201 | void tf3(decltype(new T{1}) p) |
| 202 | {} |
| 203 | |
| 204 | // CHECK: void @_ZN5test43tf1INS_1XEEEvDTnw_T_piLi1EEE |
| 205 | template void tf1<X>(X*); |
| 206 | |
Sebastian Redl | faf4ef6 | 2012-02-25 22:59:28 +0000 | [diff] [blame] | 207 | // CHECK: void @_ZN5test43tf2INS_1XEEEvDTnw_T_piilLi1EEEE |
| 208 | template void tf2<X>(X*); |
Sebastian Redl | b76ffc5 | 2012-02-25 20:51:07 +0000 | [diff] [blame] | 209 | |
Sebastian Redl | faf4ef6 | 2012-02-25 22:59:28 +0000 | [diff] [blame] | 210 | // CHECK: void @_ZN5test43tf3INS_1XEEEvDTnw_T_ilLi1EEE |
Sebastian Redl | b76ffc5 | 2012-02-25 20:51:07 +0000 | [diff] [blame] | 211 | template void tf3<X>(X*); |
John McCall | 9653ab5 | 2012-09-25 09:10:17 +0000 | [diff] [blame] | 212 | |
| 213 | } |
| 214 | |
| 215 | namespace test5 { |
| 216 | template <typename T> void a(decltype(noexcept(T()))) {} |
| 217 | template void a<int>(decltype(noexcept(int()))); |
| 218 | // CHECK: void @_ZN5test51aIiEEvDTnxcvT__EE( |
Sebastian Redl | b76ffc5 | 2012-02-25 20:51:07 +0000 | [diff] [blame] | 219 | } |
Stephen Hines | 176edba | 2014-12-01 14:53:08 -0800 | [diff] [blame] | 220 | |
| 221 | namespace test6 { |
| 222 | struct X { |
| 223 | int i; |
| 224 | }; |
| 225 | |
| 226 | struct Y { |
| 227 | union { |
| 228 | int i; |
| 229 | }; |
| 230 | }; |
| 231 | |
| 232 | struct Z { |
| 233 | union { |
| 234 | X ua; |
| 235 | Y ub; |
| 236 | }; |
| 237 | |
| 238 | struct { |
| 239 | X s; |
| 240 | }; |
| 241 | |
| 242 | union { |
| 243 | union { |
| 244 | struct { |
| 245 | struct { |
| 246 | X uuss; |
| 247 | }; |
| 248 | }; |
| 249 | }; |
| 250 | }; |
| 251 | }; |
| 252 | |
| 253 | Z z, *zp; |
| 254 | |
| 255 | template<typename T> |
| 256 | void f1(decltype(T(z.ua.i))) {} |
| 257 | template void f1<int>(int); |
| 258 | // CHECK-LABEL: define weak_odr void @_ZN5test62f1IiEEvDTcvT_dtdtL_ZNS_1zEE2ua1iE |
| 259 | |
| 260 | template<typename T> |
| 261 | void f2(decltype(T(z.ub.i))) {} |
| 262 | template void f2<int>(int); |
| 263 | // CHECK-LABEL: define weak_odr void @_ZN5test62f2IiEEvDTcvT_dtdtL_ZNS_1zEE2ub1iE |
| 264 | |
| 265 | template<typename T> |
| 266 | void f3(decltype(T(z.s.i))) {} |
| 267 | template void f3<int>(int); |
| 268 | // CHECK-LABEL: define weak_odr void @_ZN5test62f3IiEEvDTcvT_dtdtL_ZNS_1zEE1s1iE |
| 269 | |
| 270 | template<typename T> |
| 271 | void f4(decltype(T(z.uuss.i))) {} |
| 272 | template void f4<int>(int); |
| 273 | // CHECK-LABEL: define weak_odr void @_ZN5test62f4IiEEvDTcvT_dtdtL_ZNS_1zEE4uuss1iE |
| 274 | |
| 275 | template<typename T> |
| 276 | void f5(decltype(T(zp->ua.i))) {} |
| 277 | template void f5<int>(int); |
| 278 | // CHECK-LABEL: define weak_odr void @_ZN5test62f5IiEEvDTcvT_dtptL_ZNS_2zpEE2ua1iE |
| 279 | |
| 280 | template<typename T> |
| 281 | void f6(decltype(T(zp->ub.i))) {} |
| 282 | template void f6<int>(int); |
| 283 | // CHECK-LABEL: define weak_odr void @_ZN5test62f6IiEEvDTcvT_dtptL_ZNS_2zpEE2ub1iE |
| 284 | |
| 285 | template<typename T> |
| 286 | void f7(decltype(T(zp->s.i))) {} |
| 287 | template void f7<int>(int); |
| 288 | // CHECK-LABEL: define weak_odr void @_ZN5test62f7IiEEvDTcvT_dtptL_ZNS_2zpEE1s1iE |
| 289 | |
| 290 | template<typename T> |
| 291 | void f8(decltype(T(zp->uuss.i))) {} |
| 292 | template void f8<int>(int); |
| 293 | // CHECK-LABEL: define weak_odr void @_ZN5test62f8IiEEvDTcvT_dtptL_ZNS_2zpEE4uuss1iE |
| 294 | } |
| 295 | |
Stephen Hines | 0e2c34f | 2015-03-23 12:09:02 -0700 | [diff] [blame] | 296 | namespace test7 { |
| 297 | struct A { int x[3]; }; |
| 298 | struct B { B(int, int); } extern b; |
| 299 | struct C { C(B); }; |
| 300 | struct D { D(C); }; |
| 301 | struct E { E(std::initializer_list<int>); }; |
| 302 | struct F { F(E); }; |
| 303 | |
| 304 | template<class T> decltype(A{1,2},T()) fA1(T t) {} |
| 305 | template<class T> decltype(A({1,2}),T()) fA2(T t) {} |
| 306 | template<class T> decltype(B{1,2},T()) fB1(T t) {} |
| 307 | template<class T> decltype(B({1,2}),T()) fB2(T t) {} |
| 308 | template<class T> decltype(C{{1,2}},T()) fC1(T t) {} |
| 309 | template<class T> decltype(C({1,2}),T()) fC2(T t) {} |
| 310 | template<class T> decltype(D{b},T()) fD1(T t) {} |
| 311 | template<class T> decltype(D(b),T()) fD2(T t) {} |
| 312 | template<class T> decltype(E{1,2},T()) fE1(T t) {} |
| 313 | template<class T> decltype(E({1,2}),T()) fE2(T t) {} |
| 314 | template<class T> decltype(F{{1,2}},T()) fF1(T t) {} |
| 315 | template<class T> decltype(F({1,2}),T()) fF2(T t) {} |
| 316 | |
| 317 | int main() { |
| 318 | fA1(1); // CHECK-LABEL: define {{.*}} @_ZN5test73fA1IiEEDTcmtlNS_1AELi1ELi2EEcvT__EES2_ |
| 319 | fA2(1); // CHECK-LABEL: define {{.*}} @_ZN5test73fA2IiEEDTcmcvNS_1AEilLi1ELi2EEcvT__EES2_ |
| 320 | fB1(1); // CHECK-LABEL: define {{.*}} @_ZN5test73fB1IiEEDTcmtlNS_1BELi1ELi2EEcvT__EES2_ |
| 321 | fB2(1); // CHECK-LABEL: define {{.*}} @_ZN5test73fB2IiEEDTcmcvNS_1BEilLi1ELi2EEcvT__EES2_ |
| 322 | fC1(1); // CHECK-LABEL: define {{.*}} @_ZN5test73fC1IiEEDTcmtlNS_1CEilLi1ELi2EEEcvT__EES2_ |
| 323 | fC2(1); // CHECK-LABEL: define {{.*}} @_ZN5test73fC2IiEEDTcmcvNS_1CEilLi1ELi2EEcvT__EES2_ |
| 324 | fD1(1); // CHECK-LABEL: define {{.*}} @_ZN5test73fD1IiEEDTcmtlNS_1DEL_ZNS_1bEEEcvT__EES2_ |
| 325 | fD2(1); // CHECK-LABEL: define {{.*}} @_ZN5test73fD2IiEEDTcmcvNS_1DEL_ZNS_1bEEcvT__EES2_ |
| 326 | fE1(1); // CHECK-LABEL: define {{.*}} @_ZN5test73fE1IiEEDTcmtlNS_1EELi1ELi2EEcvT__EES2_ |
| 327 | fE2(1); // CHECK-LABEL: define {{.*}} @_ZN5test73fE2IiEEDTcmcvNS_1EEilLi1ELi2EEcvT__EES2_ |
| 328 | fF1(1); // CHECK-LABEL: define {{.*}} @_ZN5test73fF1IiEEDTcmtlNS_1FEilLi1ELi2EEEcvT__EES2_ |
| 329 | fF2(1); // CHECK-LABEL: define {{.*}} @_ZN5test73fF2IiEEDTcmcvNS_1FEilLi1ELi2EEcvT__EES2_ |
| 330 | } |
| 331 | } |