1 // RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-apple-darwin9 -fblocks -std=c++11 | FileCheck %s
2 struct X { };
3 struct Y { };
4
5 // CHECK: @unmangled_variable = global
6 // CHECK: @_ZN1N1iE = global
7 // CHECK: @_ZZN1N1fEiiE1b = internal global
8 // CHECK: @_ZZN1N1gEvE1a = internal global
9 // CHECK: @_ZGVZN1N1gEvE1a = internal global
10
11 //CHECK: @pr5966_i = external global
12 //CHECK: @_ZL8pr5966_j = internal global
13
14 // CHECK-LABEL: define zeroext i1 @_ZplRK1YRA100_P1X
operator +(const Y &,X * (& xs)[100])15 bool operator+(const Y&, X* (&xs)[100]) { return false; }
16
17 // CHECK-LABEL: define void @_Z1f1s
18 typedef struct { int a; } s;
f(s)19 void f(s) { }
20
21 // CHECK-LABEL: define void @_Z1f1e
22 typedef enum { foo } e;
f(e)23 void f(e) { }
24
25 // CHECK-LABEL: define void @_Z1f1u
26 typedef union { int a; } u;
f(u)27 void f(u) { }
28
29 // CHECK-LABEL: define void @_Z1f1x
30 typedef struct { int a; } x,y;
f(y)31 void f(y) { }
32
33 // CHECK-LABEL: define void @_Z1fv
f()34 void f() { }
35
36 // CHECK-LABEL: define void @_ZN1N1fEv
f()37 namespace N { void f() { } }
38
39 // CHECK-LABEL: define void @_ZN1N1N1fEv
f()40 namespace N { namespace N { void f() { } } }
41
42 // CHECK-LABEL: define void @unmangled_function
unmangled_function()43 extern "C" { namespace N { void unmangled_function() { } } }
44
45 extern "C" { namespace N { int unmangled_variable = 10; } }
46
47 namespace N { int i; }
48
f(int,int)49 namespace N { int f(int, int) { static int b; return b; } }
50
g()51 namespace N { int h(); void g() { static int a = h(); } }
52
53 // CHECK-LABEL: define void @_Z1fno
f(__int128_t,__uint128_t)54 void f(__int128_t, __uint128_t) { }
55
56 template <typename T> struct S1 {};
57
58 // CHECK-LABEL: define void @_Z1f2S1IiE
f(S1<int>)59 void f(S1<int>) {}
60
61 // CHECK-LABEL: define void @_Z1f2S1IdE
f(S1<double>)62 void f(S1<double>) {}
63
64 template <int N> struct S2 {};
65 // CHECK-LABEL: define void @_Z1f2S2ILi100EE
f(S2<100>)66 void f(S2<100>) {}
67
68 // CHECK-LABEL: define void @_Z1f2S2ILin100EE
f(S2<-100>)69 void f(S2<-100>) {}
70
71 template <bool B> struct S3 {};
72
73 // CHECK-LABEL: define void @_Z1f2S3ILb1EE
f(S3<true>)74 void f(S3<true>) {}
75
76 // CHECK-LABEL: define void @_Z1f2S3ILb0EE
f(S3<false>)77 void f(S3<false>) {}
78
79 struct S;
80
81 // CHECK-LABEL: define void @_Z1fM1SKFvvE
f(void (S::*)()const)82 void f(void (S::*)() const) {}
83
84 // CHECK-LABEL: define void @_Z1fM1SFvvE
f(void (S::*)())85 void f(void (S::*)()) {}
86
87 // CHECK-LABEL: define void @_Z1fi
f(const int)88 void f(const int) { }
89
ft1(U u,T t)90 template<typename T, typename U> void ft1(U u, T t) { }
91
ft2(T t,void (*)(T),void (*)(T))92 template<typename T> void ft2(T t, void (*)(T), void (*)(T)) { }
93
94 template<typename T, typename U = S1<T> > struct S4 { };
ft3(S4<T> *)95 template<typename T> void ft3(S4<T>*) { }
96
97 namespace NS {
ft1(T)98 template<typename T> void ft1(T) { }
99 }
100
g1()101 void g1() {
102 // CHECK: @_Z3ft1IidEvT0_T_
103 ft1<int, double>(1, 0);
104
105 // CHECK: @_Z3ft2IcEvT_PFvS0_ES2_
106 ft2<char>(1, 0, 0);
107
108 // CHECK: @_Z3ft3IiEvP2S4IT_2S1IS1_EE
109 ft3<int>(0);
110
111 // CHECK: @_ZN2NS3ft1IiEEvT_
112 NS::ft1<int>(1);
113 }
114
115 // Expressions
116 template<int I> struct S5 { };
117
ft4(S5<I>)118 template<int I> void ft4(S5<I>) { }
g2()119 void g2() {
120 // CHECK: @_Z3ft4ILi10EEv2S5IXT_EE
121 ft4(S5<10>());
122
123 // CHECK: @_Z3ft4ILi20EEv2S5IXT_EE
124 ft4(S5<20>());
125 }
126
127 extern "C++" {
128 // CHECK: @_Z1hv
h()129 void h() { }
130 }
131
132 // PR5019
133 extern "C" { struct a { int b; }; }
134
135 // CHECK: @_Z1fP1a
f(struct a * x)136 int f(struct a *x) {
137 return x->b;
138 }
139
140 // PR5017
141 extern "C" {
142 struct Debug {
operator <<Debug143 const Debug& operator<< (unsigned a) const { return *this; }
144 };
145 Debug dbg;
146 // CHECK: @_ZNK5DebuglsEj
main(void)147 int main(void) { dbg << 32 ;}
148 }
149
150 template<typename T> struct S6 {
151 typedef int B;
152 };
153
ft5(typename S6<T>::B)154 template<typename T> void ft5(typename S6<T>::B) { }
155 // CHECK: @_Z3ft5IiEvN2S6IT_E1BE
156 template void ft5<int>(int);
157
158 template<typename T> class A {};
159
160 namespace NS {
operator ==(const A<T> &,const A<T> &)161 template<typename T> bool operator==(const A<T>&, const A<T>&) { return true; }
162 }
163
164 // CHECK: @_ZN2NSeqIcEEbRK1AIT_ES5_
165 template bool NS::operator==(const ::A<char>&, const ::A<char>&);
166
167 namespace std {
operator ==(const A<T> &,const A<T> &)168 template<typename T> bool operator==(const A<T>&, const A<T>&) { return true; }
169 }
170
171 // CHECK: @_ZSteqIcEbRK1AIT_ES4_
172 template bool std::operator==(const ::A<char>&, const ::A<char>&);
173
174 struct S {
175 typedef int U;
176 };
177
ft6(const T &)178 template <typename T> typename T::U ft6(const T&) { return 0; }
179
180 // CHECK: @_Z3ft6I1SENT_1UERKS1_
181 template int ft6<S>(const S&);
182
183 template<typename> struct __is_scalar_type {
184 enum { __value = 1 };
185 };
186
187 template<bool, typename> struct __enable_if { };
188
189 template<typename T> struct __enable_if<true, T> {
190 typedef T __type;
191 };
192
193 // PR5063
ft7()194 template<typename T> typename __enable_if<__is_scalar_type<T>::__value, void>::__type ft7() { }
195
196 // CHECK: @_Z3ft7IiEN11__enable_ifIXsr16__is_scalar_typeIT_EE7__valueEvE6__typeEv
197 template void ft7<int>();
198 // CHECK: @_Z3ft7IPvEN11__enable_ifIXsr16__is_scalar_typeIT_EE7__valueEvE6__typeEv
199 template void ft7<void*>();
200
201 // PR5144
202 extern "C" {
203 void extern_f(void);
204 };
205
206 // CHECK: @extern_f
extern_f(void)207 void extern_f(void) { }
208
209 struct S7 {
210 S7();
211
212 struct S { S(); };
213 struct {
214 S s;
215 } a;
216 };
217
218 // PR5139
219 // CHECK: @_ZN2S7C2Ev
220 // CHECK: @_ZN2S7Ut_C1Ev
221 // CHECK: @_ZN2S7C1Ev
S7()222 S7::S7() {}
223
224 // PR5063
ft8()225 template<typename T> typename __enable_if<(__is_scalar_type<T>::__value), void>::__type ft8() { }
226 // CHECK: @_Z3ft8IiEN11__enable_ifIXsr16__is_scalar_typeIT_EE7__valueEvE6__typeEv
227 template void ft8<int>();
228 // CHECK: @_Z3ft8IPvEN11__enable_ifIXsr16__is_scalar_typeIT_EE7__valueEvE6__typeEv
229 template void ft8<void*>();
230
231 // PR5796
232 namespace PR5796 {
233 template<typename> struct __is_scalar_type {
234 enum { __value = 0 };
235 };
236
237 template<bool, typename> struct __enable_if {};
238 template<typename T> struct __enable_if<true, T> { typedef T __type; };
239 template<typename T>
240
241 // CHECK-LABEL: define linkonce_odr void @_ZN6PR57968__fill_aIiEENS_11__enable_ifIXntsr16__is_scalar_typeIT_EE7__valueEvE6__typeEv
__fill_a()242 typename __enable_if<!__is_scalar_type<T>::__value, void>::__type __fill_a() { };
243
f()244 void f() { __fill_a<int>(); }
245 }
246
247 namespace Expressions {
248 // Unary operators.
249
250 // CHECK-LABEL: define weak_odr void @_ZN11Expressions2f1ILi1EEEvPAplngT_Li2E_i
f1(int (*)[(-i)+2])251 template <int i> void f1(int (*)[(-i) + 2]) { };
252 template void f1<1>(int (*)[1]);
253
254 // CHECK-LABEL: define weak_odr void @_ZN11Expressions2f2ILi1EEEvPApsT__i
f2(int (*)[+i])255 template <int i> void f2(int (*)[+i]) { };
256 template void f2<1>(int (*)[1]);
257
258 // Binary operators.
259
260 // CHECK-LABEL: define weak_odr void @_ZN11Expressions2f3ILi1EEEvPAplT_T__i
f3(int (*)[i+i])261 template <int i> void f3(int (*)[i+i]) { };
262 template void f3<1>(int (*)[2]);
263
264 // CHECK-LABEL: define weak_odr void @_ZN11Expressions2f4ILi1EEEvPAplplLi2ET_T__i
f4(int (*)[2+i+i])265 template <int i> void f4(int (*)[2 + i+i]) { };
266 template void f4<1>(int (*)[4]);
267
268 // The ternary operator.
269 // CHECK-LABEL: define weak_odr void @_ZN11Expressions2f4ILb1EEEvPAquT_Li1ELi2E_i
f4(int (*)[b?1:2])270 template <bool b> void f4(int (*)[b ? 1 : 2]) { };
271 template void f4<true>(int (*)[1]);
272 }
273
274 struct Ops {
275 Ops& operator+(const Ops&);
276 Ops& operator-(const Ops&);
277 Ops& operator&(const Ops&);
278 Ops& operator*(const Ops&);
279
280 void *v;
281 };
282
283 // CHECK-LABEL: define dereferenceable({{[0-9]+}}) %struct.Ops* @_ZN3OpsplERKS_
operator +(const Ops &)284 Ops& Ops::operator+(const Ops&) { return *this; }
285 // CHECK-LABEL: define dereferenceable({{[0-9]+}}) %struct.Ops* @_ZN3OpsmiERKS_
operator -(const Ops &)286 Ops& Ops::operator-(const Ops&) { return *this; }
287 // CHECK-LABEL: define dereferenceable({{[0-9]+}}) %struct.Ops* @_ZN3OpsanERKS_
operator &(const Ops &)288 Ops& Ops::operator&(const Ops&) { return *this; }
289 // CHECK-LABEL: define dereferenceable({{[0-9]+}}) %struct.Ops* @_ZN3OpsmlERKS_
operator *(const Ops &)290 Ops& Ops::operator*(const Ops&) { return *this; }
291
292 // PR5861
293 namespace PR5861 {
294 template<bool> class P;
295 template<> class P<true> {};
296
297 template<template <bool> class, bool>
298 struct Policy { };
299
300 template<typename T, typename = Policy<P, true> > class Alloc
301 {
allocate(int,const void *)302 T *allocate(int, const void*) { return 0; }
303 };
304
305 // CHECK-LABEL: define weak_odr i8* @_ZN6PR58615AllocIcNS_6PolicyINS_1PELb1EEEE8allocateEiPKv
306 template class Alloc<char>;
307 }
308
309 // CHECK-LABEL: define void @_Z1fU13block_pointerFiiiE
310 void f(int (^)(int, int)) { }
311
pr5966_foo()312 void pr5966_foo() {
313 extern int pr5966_i;
314 pr5966_i = 0;
315 }
316
317 static int pr5966_j;
318
pr5966_bar()319 void pr5966_bar() {
320 pr5966_j = 0;
321 }
322
323 namespace test0 {
324 int ovl(int x);
325 char ovl(double x);
326
f(T,char (& buffer)[sizeof (ovl (T ()))])327 template <class T> void f(T, char (&buffer)[sizeof(ovl(T()))]) {}
328
test0()329 void test0() {
330 char buffer[1];
331 f(0.0, buffer);
332 }
333 // CHECK-LABEL: define void @_ZN5test05test0Ev()
334 // CHECK-LABEL: define linkonce_odr void @_ZN5test01fIdEEvT_RAszcl3ovlcvS1__EE_c(
335
test1()336 void test1() {
337 char buffer[sizeof(int)];
338 f(1, buffer);
339 }
340 // CHECK-LABEL: define void @_ZN5test05test1Ev()
341 // CHECK-LABEL: define linkonce_odr void @_ZN5test01fIiEEvT_RAszcl3ovlcvS1__EE_c(
342
g(char (& buffer)[sizeof (T ()+5.0f)])343 template <class T> void g(char (&buffer)[sizeof(T() + 5.0f)]) {}
test2()344 void test2() {
345 char buffer[sizeof(float)];
346 g<float>(buffer);
347 }
348 // CHECK-LABEL: define linkonce_odr void @_ZN5test01gIfEEvRAszplcvT__ELf40a00000E_c(
349
h(char (& buffer)[sizeof (T ()+5.0)])350 template <class T> void h(char (&buffer)[sizeof(T() + 5.0)]) {}
test3()351 void test3() {
352 char buffer[sizeof(double)];
353 h<float>(buffer);
354 }
355 // CHECK-LABEL: define linkonce_odr void @_ZN5test01hIfEEvRAszplcvT__ELd4014000000000000E_c(
356
j(char (& buffer)[sizeof (T ().buffer)])357 template <class T> void j(char (&buffer)[sizeof(T().buffer)]) {}
358 struct A { double buffer[128]; };
test4()359 void test4() {
360 char buffer[1024];
361 j<A>(buffer);
362 }
363 // CHECK-LABEL: define linkonce_odr void @_ZN5test01jINS_1AEEEvRAszdtcvT__E6buffer_c(
364
k(char (& buffer)[sizeof (T ()+0.0f)])365 template <class T> void k(char (&buffer)[sizeof(T() + 0.0f)]) {}
test5()366 void test5() {
367 char buffer[sizeof(float)];
368 k<float>(buffer);
369 }
370 // CHECK-LABEL: define linkonce_odr void @_ZN5test01kIfEEvRAszplcvT__ELf00000000E_c(
371
372 }
373
374 namespace test1 {
375 template<typename T> struct X { };
f(Y<T>)376 template<template<class> class Y, typename T> void f(Y<T>) { }
377 // CHECK-LABEL: define weak_odr void @_ZN5test11fINS_1XEiEEvT_IT0_E
378 template void f(X<int>);
379 }
380
381 // CHECK-LABEL: define internal void @_ZL27functionWithInternalLinkagev()
functionWithInternalLinkage()382 static void functionWithInternalLinkage() { }
g()383 void g() { functionWithInternalLinkage(); }
384
385 namespace test2 {
read_member(T & obj)386 template <class T> decltype(((T*) 0)->member) read_member(T& obj) {
387 return obj.member;
388 }
389
390 struct A { int member; } obj;
test()391 int test() {
392 return read_member(obj);
393 }
394
395 // CHECK-LABEL: define linkonce_odr i32 @_ZN5test211read_memberINS_1AEEEDtptcvPT_Li0E6memberERS2_(
396 }
397
398 // rdar://problem/9280586
399 namespace test3 {
400 struct AmbiguousBase { int ab; };
401 struct Path1 : AmbiguousBase { float p; };
402 struct Path2 : AmbiguousBase { double p; };
403 struct Derived : Path1, Path2 { };
404
405 // CHECK-LABEL: define linkonce_odr i32 @_ZN5test38get_ab_1INS_7DerivedEEEDtptcvPT_Li0Esr5Path1E2abERS2_(
get_ab_1(T & ref)406 template <class T> decltype(((T*) 0)->Path1::ab) get_ab_1(T &ref) { return ref.Path1::ab; }
407
408 // CHECK-LABEL: define linkonce_odr i32 @_ZN5test38get_ab_2INS_7DerivedEEEDtptcvPT_Li0Esr5Path2E2abERS2_(
get_ab_2(T & ref)409 template <class T> decltype(((T*) 0)->Path2::ab) get_ab_2(T &ref) { return ref.Path2::ab; }
410
411 // CHECK-LABEL: define linkonce_odr float @_ZN5test37get_p_1INS_7DerivedEEEDtptcvPT_Li0Esr5Path1E1pERS2_(
get_p_1(T & ref)412 template <class T> decltype(((T*) 0)->Path1::p) get_p_1(T &ref) { return ref.Path1::p; }
413
414 // CHECK-LABEL: define linkonce_odr double @_ZN5test37get_p_2INS_7DerivedEEEDtptcvPT_Li0Esr5Path2E1pERS2_(
get_p_2(T & ref)415 template <class T> decltype(((T*) 0)->Path2::p) get_p_2(T &ref) { return ref.Path2::p; }
416
417 Derived obj;
test()418 void test() {
419 get_ab_1(obj);
420 get_ab_2(obj);
421 get_p_1(obj);
422 get_p_2(obj);
423 }
424 }
425
426 // CHECK-LABEL: define void @_ZN5test41gEPNS_3zedIXadL_ZNS_3foo3barEEEEE
427 namespace test4 {
428 struct foo { int bar; };
429 template <int (foo::*)>
430 struct zed {};
g(zed<& foo::bar> *)431 void g(zed<&foo::bar>*)
432 {}
433 }
434 // CHECK-LABEL: define void @_ZN5test51gEPNS_3zedIXadL_ZNS_3foo3barEEEEE
435 namespace test5 {
436 struct foo { static int bar; };
437 template <int *>
438 struct zed {};
g(zed<& foo::bar> *)439 void g(zed<&foo::bar>*)
440 {}
441 }
442 // CHECK-LABEL: define void @_ZN5test61gEPNS_3zedIXadL_ZNS_3foo3barEvEEEE
443 namespace test6 {
444 struct foo { int bar(); };
445 template <int (foo::*)()>
446 struct zed {};
g(zed<& foo::bar> *)447 void g(zed<&foo::bar>*)
448 {}
449 }
450 // CHECK-LABEL: define void @_ZN5test71gEPNS_3zedIXadL_ZNS_3foo3barEvEEEE
451 namespace test7 {
452 struct foo { static int bar(); };
453 template <int (*f)()>
454 struct zed {};
g(zed<& foo::bar> *)455 void g(zed<&foo::bar>*)
456 {}
457 }
458 // CHECK-LABEL: define weak_odr void @_ZN5test81AIL_ZNS_1B5valueEEE3incEv
459 namespace test8 {
inc()460 template <int &counter> class A { void inc() { counter++; } };
461 class B { public: static int value; };
462 template class A<B::value>;
463 }
464 // CHECK: declare void @_ZN5test91fIiNS_3barEEEvRKNT0_3baz1XE
465 namespace test9 {
466 template<class T>
467 struct foo {
468 typedef T X;
469 };
470 struct bar {
471 typedef foo<int> baz;
472 };
473 template <class zaz, class zed>
474 void f(const typename zed::baz::X&);
g()475 void g() {
476 f<int, bar>( 0);
477 }
478 }
479
480 // <rdar://problem/7825453>
481 namespace test10 {
482 template <char P1> struct S {};
f(struct S<false?'a':P2>)483 template <char P2> void f(struct S<false ? 'a' : P2> ) {}
484
485 // CHECK-LABEL: define weak_odr void @_ZN6test101fILc3EEEvNS_1SIXquLb0ELc97ET_EEE(
486 template void f<(char) 3>(struct S<3>);
487 }
488
489 namespace test11 {
490 // CHECK: @_ZN6test111fEz
f(...)491 void f(...) { }
492
493 struct A {
494 void f(...);
495 };
496
497 // CHECK: @_ZN6test111A1fEz
f(...)498 void A::f(...) { }
499 }
500
501 namespace test12 {
502
503 // CHECK: _ZN6test121fENS_1AILt33000EEE
504 template <unsigned short> struct A { };
f(A<33000>)505 void f(A<33000>) { }
506 }
507
508 // PR7446
509 namespace test13 {
510 template <template <class> class T> class A {};
511 template <class U> class B {};
512
foo(const A<T> & a)513 template <template<class> class T> void foo(const A<T> &a) {}
514
515 // CHECK-LABEL: define weak_odr void @_ZN6test133fooINS_1BEEEvRKNS_1AIT_EE(
516 template void foo(const A<B> &a);
517 }
518
519 namespace test14 {
520 extern "C" {
521 struct S {
522 static int a(), x;
523 };
524 // CHECK-LABEL: define i32 @_ZN6test141S1aEv
525 // CHECK: load i32, i32* @_ZN6test141S1xE
a()526 int S::a() { return S::x; }
527 }
528 }
529
530 // rdar://problem/8204122
531 namespace test15 {
532 enum E { e = 3 };
533 template <int I> struct S {};
534
f(S<I+e>)535 template <int I> void f(S<I + e>) {}
536
537 // CHECK-LABEL: define weak_odr void @_ZN6test151fILi7EEEvNS_1SIXplT_LNS_1EE3EEEE(
538 template void f<7>(S<7 + e>);
539 }
540
541 // rdar://problem/8302148
542 namespace test17 {
543 template <int N> struct A {};
544
545 struct B {
546 static int foo(void);
547 };
548
549 template <class T> A<sizeof(T::foo())> func(void);
550
551 // CHECK-LABEL: define void @_ZN6test174testEv()
552 // CHECK: call {{.*}} @_ZN6test174funcINS_1BEEENS_1AIXszclsrT_3fooEEEEv()
test()553 void test() {
554 func<B>();
555 }
556 }
557
558 // PR7891
559 namespace test18 {
560 struct A {
561 int operator+();
562 int operator-();
563 int operator*();
564 int operator&();
565 };
566 template <int (A::*)()> struct S {};
567
f(S<& T::operator+>)568 template <typename T> void f(S<&T::operator+>) {}
569 template void f<A>(S<&A::operator+>);
570
f(S<& T::operator->)571 template <typename T> void f(S<&T::operator- >) {}
572 template void f<A>(S<&A::operator- >);
573
f(S<& T::operator * >)574 template <typename T> void f(S<&T::operator*>) {}
575 template void f<A>(S<&A::operator*>);
576
f(S<& T::operator &>)577 template <typename T> void f(S<&T::operator&>) {}
578 template void f<A>(S<&A::operator&>);
579
580 // CHECK-LABEL: define weak_odr void @_ZN6test181fINS_1AEEEvNS_1SIXadsrT_onplEEE
581 // CHECK-LABEL: define weak_odr void @_ZN6test181fINS_1AEEEvNS_1SIXadsrT_onmiEEE
582 // CHECK-LABEL: define weak_odr void @_ZN6test181fINS_1AEEEvNS_1SIXadsrT_onmlEEE
583 // CHECK-LABEL: define weak_odr void @_ZN6test181fINS_1AEEEvNS_1SIXadsrT_onanEEE
584 }
585
586 // rdar://problem/8332117
587 namespace test19 {
588 struct A {
589 template <typename T> int f();
590 int operator+();
591 operator int();
592 template <typename T> int operator-();
593 };
594
595 template <int (A::*)()> struct S {};
596
g(S<& T::template f<int>>)597 template <typename T> void g (S<&T::template f<int> >) {}
g(S<& T::operator+>)598 template <typename T> void g (S<&T::operator+ >) {}
g(S<& T::operator int>)599 template <typename T> void g (S<&T::operator int>) {}
g(S<& T::template operator-<double>>)600 template <typename T> void g (S<&T::template operator- <double> >) {}
601
602 // CHECK-LABEL: define weak_odr void @_ZN6test191gINS_1AEEEvNS_1SIXadsrT_1fIiEEEE(
603 template void g<A>(S<&A::f<int> >);
604 // CHECK-LABEL: define weak_odr void @_ZN6test191gINS_1AEEEvNS_1SIXadsrT_onplEEE(
605 template void g<A>(S<&A::operator+>);
606 // CHECK-LABEL: define weak_odr void @_ZN6test191gINS_1AEEEvNS_1SIXadsrT_oncviEEE(
607 template void g<A>(S<&A::operator int>);
608 // CHECK-LABEL: define weak_odr void @_ZN6test191gINS_1AEEEvNS_1SIXadsrT_onmiIdEEEE(
609 template void g<A>(S<&A::operator-<double> >);
610 }
611
612 namespace test20 {
613 template <class T> T *f(const T&);
614 template <class T> T *f(T*);
615
616 // CHECK-LABEL: define weak_odr void @_ZN6test205test0IiEEvDTcl1fIPT_ELi0EEE(
test0(decltype(f<T * > (0)) )617 template <class T> void test0(decltype(f<T*>(0))) {}
618 template void test0<int>(decltype(f<int*>(0)));
619
620 // CHECK-LABEL: define weak_odr void @_ZN6test205test1IiEEvDTcl1fIEcvT__EEE(
test1(decltype(f<> (T ())) )621 template <class T> void test1(decltype(f<>(T()))) {}
622 template void test1<int>(decltype(f<>(int())));
623 }
624
625 // rdar:// 8620510
626 namespace test21 {
627 // CHECK-LABEL: define void @_ZN6test2112vla_arg_funcEiPA_i(
vla_arg_func(int X,int a[X][X])628 void vla_arg_func(int X, int a[X][X]) {}
629 }
630
631 namespace test22 {
632 // CHECK-LABEL: define void @_ZN6test221fEDn(
f(decltype(nullptr) )633 void f(decltype(nullptr)) { }
634 }
635
636 // rdar://problem/8913416
637 namespace test23 {
638 typedef void * const vpc;
639
640 // CHECK-LABEL: define void @_ZN6test231fERA10_KPv(
f(vpc (&)[10])641 void f(vpc (&)[10]) {}
642
643 typedef vpc vpca5[5];
f(vpca5 volatile (&)[10])644 void f(vpca5 volatile (&)[10]) {}
645 // CHECK-LABEL: define void @_ZN6test231fERA10_A5_VKPv(
646 }
647
648 namespace test24 {
test0()649 void test0() {
650 extern int foo();
651 // CHECK: call i32 @_ZN6test243fooEv()
652 foo();
653 }
654
bar()655 static char bar() {}
test1()656 void test1() {
657 // CHECK: call signext i8 @_ZN6test24L3barEv()
658 bar();
659 }
660 }
661
662 // rdar://problem/8806641
663 namespace test25 {
664 template <void (*fn)()> struct A {
calltest25::A665 static void call() { fn(); }
666 };
667 void foo();
test()668 void test() {
669 // CHECK: call void @_ZN6test251AIXadL_ZNS_3fooEvEEE4callEv()
670 A<foo>::call();
671 }
672 }
673
674 namespace test26 {
foo(decltype(T<float>::object) & object)675 template <template <class> class T> void foo(decltype(T<float>::object) &object) {}
676
677 template <class T> struct holder { static T object; };
678
test()679 void test() {
680 float f;
681
682 // CHECK: call void @_ZN6test263fooINS_6holderEEEvRDtsrT_IfE6objectE(
683 foo<holder>(f);
684 }
685 }
686
687 namespace test27 {
688 struct A {
689 struct inner {
690 float object;
691 };
692
693 float meth();
694 };
695 typedef A Alias;
696
a(decltype(T::inner::object) & object)697 template <class T> void a(decltype(T::inner::object) &object) {}
T()698 template <class T> void b(decltype(T().Alias::meth()) &object) {}
699
test()700 void test() {
701 float f;
702 // CHECK: call void @_ZN6test271aINS_1AEEEvRDtsrNT_5innerE6objectE(
703 a<A>(f);
704 // CHECK: call void @_ZN6test271bINS_1AEEEvRDTcldtcvT__Esr5AliasE4methEE(
705 b<A>(f);
706 }
707 }
708
709 // An injected class name type in a unresolved-name.
710 namespace test28 {
711 template <class T> struct A {
712 enum { bit };
713 };
714
715 template <class T> void foo(decltype(A<T>::A::bit) x);
716
test()717 void test() {
718 foo<char>(A<char>::bit);
719 // CHECK: call void @_ZN6test283fooIcEEvDtsr1AIT_E1AE3bitE(
720 }
721 }
722
723 // An enclosing template type parameter in an unresolved-name.
724 namespace test29 {
725 template <class T> struct A {
726 template <class U> static void foo(decltype(T::fn(U())) x);
727 };
728 struct B { static int fn(int); static long fn(long); };
729
test()730 void test() {
731 A<B>::foo<int>(0);
732 // CHECK: call void @_ZN6test291AINS_1BEE3fooIiEEvDTclsrS1_2fncvT__EEE(
733 }
734 }
735
736 // An enclosing template template parameter in an unresolved-name.
737 namespace test30 {
738 template <template <class> class T> struct A {
739 template <class U> static void foo(decltype(T<U>::fn()) x);
740 };
741 template <class T> struct B { static T fn(); };
742
test()743 void test() {
744 A<B>::foo<int>(0);
745 // CHECK: call void @_ZN6test301AINS_1BEE3fooIiEEvDTclsrS1_IT_EE2fnEE(
746 }
747 }
748
749 namespace test31 { // instantiation-dependent mangling of decltype
750 int x;
f1(T p)751 template<class T> auto f1(T p)->decltype(x) { return 0; }
752 // The return type in the mangling of the template signature
753 // is encoded as "i".
f2(T p)754 template<class T> auto f2(T p)->decltype(p) { return 0; }
755 // The return type in the mangling of the template signature
756 // is encoded as "Dtfp_E".
757 void g(int);
f3(T p)758 template<class T> auto f3(T p)->decltype(g(p)) {}
759
760 // CHECK-LABEL: define weak_odr i32 @_ZN6test312f1IiEEiT_(
761 template int f1(int);
762 // CHECK-LABEL: define weak_odr i32 @_ZN6test312f2IiEEDtfp_ET_
763 template int f2(int);
764 // CHECK-LABEL: define weak_odr void @_ZN6test312f3IiEEDTcl1gfp_EET_
765 template void f3(int);
766 }
767
768 // PR10205
769 namespace test32 {
770 template<typename T, int=T::value> struct A {
771 typedef int type;
772 };
773 struct B { enum { value = 4 }; };
774
foo()775 template <class T> typename A<T>::type foo() { return 0; }
test()776 void test() {
777 foo<B>();
778 // CHECK: call i32 @_ZN6test323fooINS_1BEEENS_1AIT_XsrS3_5valueEE4typeEv()
779 }
780 }
781
782 namespace test33 {
783 template <class T> struct X {
784 enum { value = T::value };
785 };
786
787 template<typename T, int=X<T>::value> struct A {
788 typedef int type;
789 };
790 struct B { enum { value = 4 }; };
791
foo()792 template <class T> typename A<T>::type foo() { return 0; }
793
test()794 void test() {
795 foo<B>();
796 // CHECK: call i32 @_ZN6test333fooINS_1BEEENS_1AIT_Xsr1XIS3_EE5valueEE4typeEv()
797 }
798 }
799
800 namespace test34 {
801 // Mangling for instantiation-dependent decltype expressions.
802 template<typename T>
T()803 void f(decltype(sizeof(decltype(T() + T())))) {}
804
805 // CHECK-LABEL: define weak_odr void @_ZN6test341fIiEEvDTstDTplcvT__EcvS1__EEE
806 template void f<int>(decltype(sizeof(1)));
807
808 // Mangling for non-instantiation-dependent sizeof expressions.
809 template<unsigned N>
f2(int (&)[N+sizeof (int *)])810 void f2(int (&)[N + sizeof(int*)]) {}
811
812 // CHECK-LABEL: define weak_odr void @_ZN6test342f2ILj4EEEvRAplT_Lm8E_i
813 template void f2<4>(int (&)[4 + sizeof(int*)]);
814
815 // Mangling for non-instantiation-dependent sizeof expressions
816 // involving an implicit conversion of the result of the sizeof.
817 template<unsigned long long N>
f3(int (&)[N+sizeof (int *)])818 void f3(int (&)[N + sizeof(int*)]) {}
819
820 // CHECK-LABEL: define weak_odr void @_ZN6test342f3ILy4EEEvRAplT_Ly8E_i
821 template void f3<4>(int (&)[4 + sizeof(int*)]);
822
823 // Mangling for instantiation-dependent sizeof() expressions as
824 // template arguments.
825 template<unsigned> struct A { };
826
f4(::test34::A<sizeof (sizeof (decltype(T ()+T ()) ))>)827 template<typename T> void f4(::test34::A<sizeof(sizeof(decltype(T() + T())))>) { }
828
829 // CHECK-LABEL: define weak_odr void @_ZN6test342f4IiEEvNS_1AIXszstDTplcvT__EcvS2__EEEEE
830 template void f4<int>(A<sizeof(sizeof(int))>);
831 }
832
833 namespace test35 {
834 // Dependent operator names of unknown arity.
835 struct A {
836 template<typename U> A operator+(U) const;
837 };
838
839 template<typename T>
840 void f1(decltype(sizeof(&T::template operator+<int>))) {}
841
842 // CHECK-LABEL: define weak_odr void @_ZN6test352f1INS_1AEEEvDTszadsrT_onplIiEE
843 template void f1<A>(__SIZE_TYPE__);
844 }
845
846 namespace test36 {
847 template<unsigned> struct A { };
848
849 template<typename ...Types>
f1(Types...values)850 auto f1(Types... values) -> A<sizeof...(values)> { }
851
852 // CHECK: define weak_odr {{.*}} @_ZN6test362f1IJifEEENS_1AIXsZfp_EEEDpT_
853 template A<2> f1(int, float);
854 }
855
856 namespace test37 {
857 struct foo {
858 struct {
859 } a;
860 typedef struct { } b;
861 typedef struct { } *c;
862 struct {
863 } d;
864 };
func(T)865 template<typename T> void func(T) { }
test()866 void test() {
867 // CHECK-LABEL: define linkonce_odr void @_ZN6test374funcINS_3fooUt_EEEvT_
868 func(foo().a);
869 // CHECK-LABEL: define linkonce_odr void @_ZN6test374funcINS_3fooUt0_EEEvT_
870 func(*foo::c());
871 // CHECK-LABEL: define linkonce_odr void @_ZN6test374funcINS_3fooUt1_EEEvT_
872 func(foo().d);
873 }
874 }
875
876 // CHECK-LABEL: define void @_Z6ASfuncPU3AS3i
ASfunc(int * x)877 void ASfunc(__attribute__((address_space(3))) int* x) {}
878
879 namespace test38 {
880 // CHECK-LABEL: define linkonce_odr void @_ZN6test384funcINS_3fooUt_EEEvT_
881 typedef struct {
882 struct {
883 } a;
884 } foo;
885
func(T)886 template <typename T> void func(T) {}
test()887 void test() { func(foo().a); }
888 }
889
890 namespace test39 {
891 // CHECK-LABEL: define internal void @"_ZN6test394funcINS_3$_03$_1EEEvT_"
892 typedef struct {
893 struct {} a;
894 } *foo;
func(T)895 template<typename T> void func(T) {}
test(foo x)896 void test(foo x) {
897 func(x->a);
898 }
899 }
900
901 namespace test40 {
902 // CHECK: i32* {{.*}} @_ZZN6test401fEvE1a_0
903 void h(int&);
f()904 inline void f() {
905 if (0) {
906 static int a;
907 }
908 static int a;
909 h(a);
910 };
g()911 void g() { f(); }
912 }
913
914 namespace test41 {
915 // CHECK: define linkonce_odr void @_ZN6test414funcINS_1XEEEvNS_3fooILi20ES1_EE
916 template <int i, class T> struct foo {
func(foo x)917 template <class T2 = T> friend void func(foo x) {}
918 };
919
920 struct X {};
921
g()922 void g() { func(foo<20, X>()); }
923 }
924
925 namespace test42 {
926 // CHECK: define linkonce_odr void @_ZN6test424funcINS_1XEEEvNS_3fooILi20ES1_EE
927 template <int i, template <class> class T> struct foo {
func(foo x)928 template <template <class> class T2 = T> friend void func(foo x) {}
929 };
930
931 template <class V> struct X {
932 };
933
g()934 void g() { func(foo<20, X>()); }
935 }
936
937 namespace test43 {
938 // CHECK-LABEL: define void @_ZN6test431gEPNS_3zedIXadL_ZNS_3fooUt_3barEEEEE
939 struct foo { union { int bar; }; };
940 template <int (foo::*)>
941 struct zed {};
g(zed<& foo::bar> *)942 void g(zed<&foo::bar>*)
943 {}
944 }
945
946 namespace test44 {
bartest44::foo947 struct foo { void bar() __restrict { }; } obj;
948
f()949 void f() {
950 obj.bar();
951 }
952 // CHECK-LABEL: define linkonce_odr void @_ZN6test443foo3barEv(%"struct.test44::foo"* %this)
953 }
954
955 namespace test45 {
956 struct S {
957 enum e {};
958 };
959 template <typename T>
f(enum T::e *)960 void f(enum T::e *) {}
961 template void f<S>(S::e *);
962 // CHECK-LABEL: define weak_odr void @_ZN6test451fINS_1SEEEvPTeNT_1eE(i32*)
963 }
964
965 namespace test46 {
966 struct S {
967 struct s {};
968 };
969 template <typename T>
f(struct T::s *)970 void f(struct T::s *) {}
971 template void f<S>(S::s *);
972 // CHECK-LABEL: define weak_odr void @_ZN6test461fINS_1SEEEvPTsNT_1sE(%"struct.test46::S::s"*)
973 }
974
975 namespace test47 {
976 struct S {
977 class c {};
978 };
979 template <typename T>
f(class T::c *)980 void f(class T::c *) {}
981 template void f<S>(S::c *);
982 // CHECK-LABEL: define weak_odr void @_ZN6test471fINS_1SEEEvPTsNT_1cE(%"class.test47::S::c"*)
983 }
984
985 namespace test48 {
986 struct S {
987 union u {};
988 };
989 template <typename T>
f(union T::u *)990 void f(union T::u *) {}
991 template void f<S>(S::u *);
992 // CHECK-LABEL: define weak_odr void @_ZN6test481fINS_1SEEEvPTuNT_1uE(%"union.test48::S::u"*)
993 }
994
995 namespace test49 {
996 template <int>
997 struct S {};
998
999 template <template <int> class T>
1000 T<3> fin(T<3>);
1001
1002 auto v = fin<S>;
1003 // CHECK-LABEL: declare void @_ZN6test493finINS_1SEEET_ILi3EES3_()
1004 }
1005
1006 namespace test50 {
1007 template <int>
1008 struct S {};
1009
1010 template <template <int> class T>
1011 T<3> fin(T<4>);
1012
1013 auto v = fin<S>;
1014 // CHECK-LABEL: declare void @_ZN6test503finINS_1SEEET_ILi3EES2_ILi4EE()
1015 }
1016
1017 namespace test51 {
1018 template <typename T>
T()1019 decltype(T().~T()) fun() {}
1020 template void fun<int>();
1021 // CHECK-LABEL: @_ZN6test513funIiEEDTcldtcvT__EdnS1_EEv
1022 template void fun<X>();
1023 // CHECK-LABEL: @_ZN6test513funI1XEEDTcldtcvT__EdnS2_EEv
1024 template void fun<S1<int> >();
1025 // CHECK-LABEL: @_ZN6test513funI2S1IiEEEDTcldtcvT__EdnS3_EEv
1026
1027 enum E {};
1028 template <typename T>
1029 struct X {
1030 struct Y {};
1031 };
1032
1033 template <typename T>
fun1()1034 decltype(S1<T>().~S1<T>()) fun1() {};
1035 template <typename U, typename T>
U()1036 decltype(U().~S1<T>()) fun2() {}
1037 template <typename U, typename T>
fun3()1038 decltype(S1<T>().~U()) fun3() {}
1039 template <typename T>
fun4()1040 decltype(S1<T>().~S1<T>(), S1<T>().~S1<T>()) fun4() {};
1041 template <typename T>
fun5()1042 decltype(S1<int>().~S1<T>()) fun5(){};
1043 template <template <typename T> class U>
fun6()1044 decltype(S1<int>().~U<int>()) fun6(){};
1045 template <typename T>
E()1046 decltype(E().E::~T()) fun7() {}
1047 template <template <typename> class U>
fun8()1048 decltype(X<int>::Y().U<int>::Y::~Y()) fun8() {}
1049 template void fun1<int>();
1050 // CHECK-LABEL: @_ZN6test514fun1IiEEDTcldtcv2S1IT_E_Edn2S1IS2_EEEv
1051 template void fun2<S1<int>, int>();
1052 // CHECK-LABEL: @_ZN6test514fun2I2S1IiEiEEDTcldtcvT__Edn2S1IT0_EEEv
1053 template void fun3<S1<int>, int>();
1054 // CHECK-LABEL: @_ZN6test514fun3I2S1IiEiEEDTcldtcvS1_IT0_E_EdnT_EEv
1055 template void fun4<int>();
1056 // CHECK-LABEL: @_ZN6test514fun4IiEEDTcmcldtcv2S1IT_E_Edn2S1IS2_EEcldtcvS3__Edn2S1IS2_EEEv
1057 template void fun5<int>();
1058 // CHECK-LABEL: @_ZN6test514fun5IiEEDTcldtcv2S1IiE_Edn2S1IT_EEEv
1059 template void fun6<S1>();
1060 // CHECK-LABEL: @_ZN6test514fun6I2S1EEDTcldtcvS1_IiE_EdnT_IiEEEv
1061 template void fun7<E>();
1062 // CHECK-LABEL: @_ZN6test514fun7INS_1EEEEDTcldtcvS1__Esr1EEdnT_EEv
1063 template void fun8<X>();
1064 }
1065
1066 namespace test52 {
1067 struct X {};
1068 void operator+(X);
1069 template <typename... T>
1070 auto f4(T... x) -> decltype(operator+(x...));
1071 // CHECK-LABEL: @_ZN6test522f4IJNS_1XEEEEDTclonplspfp_EEDpT_
use()1072 void use() { f4(X{}); }
1073 }
1074
1075 namespace test53 {
1076 struct c {
1077 using t1 = struct { int z; };
1078 using t2 = struct { double z; };
1079 using t3 = struct { float z; };
1080 using t4 = struct { float z; };
1081
ctest53::c1082 __attribute__((used)) c(t1) {}
ctest53::c1083 __attribute__((used)) c(t2) {}
ctest53::c1084 __attribute__((used)) c(t3) {}
ctest53::c1085 __attribute__((used)) c(t4) {}
1086 // CHECK-LABEL: @_ZN6test531cC2ENS0_2t1E
1087 // CHECK-LABEL: @_ZN6test531cC2ENS0_2t2E
1088 // CHECK-LABEL: @_ZN6test531cC2ENS0_2t3E
1089 // CHECK-LABEL: @_ZN6test531cC2ENS0_2t4E
1090 };
1091 }
1092
1093 namespace test54 {
1094 struct c {
1095 using t1 = struct { int z; } *;
1096 using t2 = struct { double z; } *;
1097
ctest54::c1098 __attribute__((used)) c(t1) {}
ctest54::c1099 __attribute__((used)) c(t2) {}
1100 // CHECK-LABEL: @_ZN6test541cC2EPNS0_Ut_E
1101 // CHECK-LABEL: @_ZN6test541cC2EPNS0_Ut0_E
1102 };
1103 }
1104