1 // RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 -o - %s
2 
3 void foo() {
4 }
5 
6 bool foobool(int argc) {
7   return argc;
8 }
9 
10 struct S1; // expected-note {{declared here}} expected-note 4 {{forward declaration of 'S1'}}
11 extern S1 a;
12 class S2 {
13   mutable int a;
14   S2 &operator+(const S2 &arg) { return (*this); } // expected-note 4 {{implicitly declared private here}}
15 
16 public:
17   S2() : a(0) {}
18   S2(S2 &s2) : a(s2.a) {}
19   static float S2s;
20   static const float S2sc;
21 };
22 const float S2::S2sc = 0; // expected-note 2 {{'S2sc' defined here}}
23 S2 b;                     // expected-note 2 {{'b' defined here}}
24 const S2 ba[5];           // expected-note 2 {{'ba' defined here}}
25 class S3 {
26   int a;
27 
28 public:
29   S3() : a(0) {}
30   S3(const S3 &s3) : a(s3.a) {}
31   S3 operator+(const S3 &arg1) { return arg1; }
32 };
33 int operator+(const S3 &arg1, const S3 &arg2) { return 5; }
34 S3 c;               // expected-note 2 {{'c' defined here}}
35 const S3 ca[5];     // expected-note 2 {{'ca' defined here}}
36 extern const int f; // expected-note 4 {{'f' declared here}}
37 class S4 {
38   int a;
39   S4(); // expected-note {{implicitly declared private here}}
40   S4(const S4 &s4);
41   S4 &operator+(const S4 &arg) { return (*this); }
42 
43 public:
44   S4(int v) : a(v) {}
45 };
46 S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
47 class S5 {
48   int a;
49   S5() : a(0) {} // expected-note {{implicitly declared private here}}
50   S5(const S5 &s5) : a(s5.a) {}
51   S5 &operator+(const S5 &arg);
52 
53 public:
54   S5(int v) : a(v) {}
55 };
56 class S6 { // expected-note 2 {{candidate function (the implicit copy assignment operator) not viable: no known conversion from 'int' to 'const S6' for 1st argument}}
57   int a;
58 
59 public:
60   S6() : a(6) {}
61   operator int() { return 6; }
62 } o;
63 
64 S3 h, k;
65 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
66 
67 template <class T>       // expected-note {{declared here}}
68 T tmain(T argc) {
69   const T d = T();       // expected-note 4 {{'d' defined here}}
70   const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
71   T qa[5] = {T()};
72   T i;
73   T &j = i;                             // expected-note 4 {{'j' defined here}}
74   S3 &p = k;                            // expected-note 2 {{'p' defined here}}
75   const T &r = da[(int)i];              // expected-note 2 {{'r' defined here}}
76   T &q = qa[(int)i];                    // expected-note 2 {{'q' defined here}}
77   T fl;
78 #pragma omp parallel sections reduction // expected-error {{expected '(' after 'reduction'}}
79   {
80     foo();
81   }
82 #pragma omp parallel sections reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
83   {
84     foo();
85   }
86 #pragma omp parallel sections reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
87   {
88     foo();
89   }
90 #pragma omp parallel sections reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
91   {
92     foo();
93   }
94 #pragma omp parallel sections reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
95   {
96     foo();
97   }
98 #pragma omp parallel sections reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
99   {
100     foo();
101   }
102 #pragma omp parallel sections reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
103   {
104     foo();
105   }
106 #pragma omp parallel sections reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
107   {
108     foo();
109   }
110 #pragma omp parallel sections reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
111   {
112     foo();
113   }
114 #pragma omp parallel sections reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name}}
115   {
116     foo();
117   }
118 #pragma omp parallel sections reduction(foo : argc) //expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
119   {
120     foo();
121   }
122 #pragma omp parallel sections reduction(&& : argc)
123   {
124     foo();
125   }
126 #pragma omp parallel sections reduction(^ : T) // expected-error {{'T' does not refer to a value}}
127   {
128     foo();
129   }
130 #pragma omp parallel sections reduction(+ : a, b, c, d, f) // expected-error {{reduction variable with incomplete type 'S1'}} expected-error 3 {{const-qualified variable cannot be reduction}} expected-error 3 {{'operator+' is a private member of 'S2'}}
131   {
132     foo();
133   }
134 #pragma omp parallel sections reduction(min : a, b, c, d, f) // expected-error {{reduction variable with incomplete type 'S1'}} expected-error 2 {{arguments of OpenMP clause 'reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 3 {{const-qualified variable cannot be reduction}}
135   {
136     foo();
137   }
138 #pragma omp parallel sections reduction(max : qa[1]) // expected-error 2 {{expected variable name}}
139   {
140     foo();
141   }
142 #pragma omp parallel sections reduction(+ : ba) // expected-error {{a reduction variable with array type 'const S2 [5]'}}
143   {
144     foo();
145   }
146 #pragma omp parallel sections reduction(* : ca) // expected-error {{a reduction variable with array type 'const S3 [5]'}}
147   {
148     foo();
149   }
150 #pragma omp parallel sections reduction(- : da) // expected-error {{a reduction variable with array type 'const int [5]'}} expected-error {{a reduction variable with array type 'const float [5]'}}
151   {
152     foo();
153   }
154 #pragma omp parallel sections reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
155   {
156     foo();
157   }
158 #pragma omp parallel sections reduction(&& : S2::S2s)
159   {
160     foo();
161   }
162 #pragma omp parallel sections reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
163   {
164     foo();
165   }
166 #pragma omp parallel sections reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
167   {
168     foo();
169   }
170 #pragma omp parallel sections reduction(+ : o) // expected-error {{no viable overloaded '='}}
171   {
172     foo();
173   }
174 #pragma omp parallel sections private(i), reduction(+ : j), reduction(+ : q) // expected-error 4 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
175   {
176     foo();
177   }
178 #pragma omp parallel private(k)
179 #pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
180   {
181     foo();
182   }
183 #pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error 3 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 3 {{previously referenced here}}
184   {
185     foo();
186   }
187 #pragma omp parallel sections reduction(+ : r) // expected-error 2 {{const-qualified variable cannot be reduction}}
188   {
189     foo();
190   }
191 #pragma omp parallel shared(i)
192 #pragma omp parallel reduction(min : i)
193 #pragma omp parallel sections reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
194   {
195     foo();
196   }
197 #pragma omp parallel private(fl)
198 #pragma omp parallel sections reduction(+ : fl)
199   {
200     foo();
201   }
202 #pragma omp parallel reduction(* : fl)
203 #pragma omp parallel sections reduction(+ : fl)
204   {
205     foo();
206   }
207 
208   return T();
209 }
210 
211 namespace A {
212 double x;
213 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
214 }
215 namespace B {
216 using A::x;
217 }
218 
219 int main(int argc, char **argv) {
220   const int d = 5;       // expected-note 2 {{'d' defined here}}
221   const int da[5] = {0}; // expected-note {{'da' defined here}}
222   int qa[5] = {0};
223   S4 e(4);
224   S5 g(5);
225   int i;
226   int &j = i;                           // expected-note 2 {{'j' defined here}}
227   S3 &p = k;                            // expected-note 2 {{'p' defined here}}
228   const int &r = da[i];                 // expected-note {{'r' defined here}}
229   int &q = qa[i];                       // expected-note {{'q' defined here}}
230   float fl;
231 #pragma omp parallel sections reduction // expected-error {{expected '(' after 'reduction'}}
232   {
233     foo();
234   }
235 #pragma omp parallel sections reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
236   {
237     foo();
238   }
239 #pragma omp parallel sections reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
240   {
241     foo();
242   }
243 #pragma omp parallel sections reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
244   {
245     foo();
246   }
247 #pragma omp parallel sections reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
248   {
249     foo();
250   }
251 #pragma omp parallel sections reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
252   {
253     foo();
254   }
255 #pragma omp parallel sections reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
256   {
257     foo();
258   }
259 #pragma omp parallel sections reduction(foo : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
260   {
261     foo();
262   }
263 #pragma omp parallel sections reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
264   {
265     foo();
266   }
267 #pragma omp parallel sections reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
268   {
269     foo();
270   }
271 #pragma omp parallel sections reduction(~ : argc) // expected-error {{expected unqualified-id}}
272   {
273     foo();
274   }
275 #pragma omp parallel sections reduction(&& : argc)
276   {
277     foo();
278   }
279 #pragma omp parallel sections reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
280   {
281     foo();
282   }
283 #pragma omp parallel sections reduction(+ : a, b, c, d, f) // expected-error {{reduction variable with incomplete type 'S1'}} expected-error 2 {{const-qualified variable cannot be reduction}} expected-error {{'operator+' is a private member of 'S2'}}
284   {
285     foo();
286   }
287 #pragma omp parallel sections reduction(min : a, b, c, d, f) // expected-error {{reduction variable with incomplete type 'S1'}} expected-error 2 {{arguments of OpenMP clause 'reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 2 {{const-qualified variable cannot be reduction}}
288   {
289     foo();
290   }
291 #pragma omp parallel sections reduction(max : argv[1]) // expected-error {{expected variable name}}
292   {
293     foo();
294   }
295 #pragma omp parallel sections reduction(+ : ba) // expected-error {{a reduction variable with array type 'const S2 [5]'}}
296   {
297     foo();
298   }
299 #pragma omp parallel sections reduction(* : ca) // expected-error {{a reduction variable with array type 'const S3 [5]'}}
300   {
301     foo();
302   }
303 #pragma omp parallel sections reduction(- : da) // expected-error {{a reduction variable with array type 'const int [5]'}}
304   {
305     foo();
306   }
307 #pragma omp parallel sections reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
308   {
309     foo();
310   }
311 #pragma omp parallel sections reduction(&& : S2::S2s)
312   {
313     foo();
314   }
315 #pragma omp parallel sections reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
316   {
317     foo();
318   }
319 #pragma omp parallel sections reduction(& : e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{invalid operands to binary expression ('S4' and 'S4')}} expected-error {{calling a private constructor of class 'S5'}} expected-error {{invalid operands to binary expression ('S5' and 'S5')}}
320   {
321     foo();
322   }
323 #pragma omp parallel sections reduction(+ : h, k, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
324   {
325     foo();
326   }
327 #pragma omp parallel sections reduction(+ : o) // expected-error {{no viable overloaded '='}}
328   {
329     foo();
330   }
331 #pragma omp parallel sections private(i), reduction(+ : j), reduction(+ : q) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
332   {
333     foo();
334   }
335 #pragma omp parallel private(k)
336 #pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
337   {
338     foo();
339   }
340 #pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
341   {
342     foo();
343   }
344 #pragma omp parallel sections reduction(+ : r) // expected-error {{const-qualified variable cannot be reduction}}
345   {
346     foo();
347   }
348 #pragma omp parallel shared(i)
349 #pragma omp parallel reduction(min : i)
350 #pragma omp parallel sections reduction(max : j) // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
351   {
352     foo();
353   }
354 #pragma omp parallel private(fl)
355 #pragma omp parallel sections reduction(+ : fl)
356   {
357     foo();
358   }
359 #pragma omp parallel reduction(* : fl)
360 #pragma omp parallel sections reduction(+ : fl)
361   {
362     foo();
363   }
364 
365   return tmain(argc) + tmain(fl); // expected-note {{in instantiation of function template specialization 'tmain<int>' requested here}} expected-note {{in instantiation of function template specialization 'tmain<float>' requested here}}
366 }
367