1 // RUN: %clang_cc1 -verify -fopenmp -ferror-limit 150 -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; // expected-note 2 {{static data member is predetermined as shared}}
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   int b;
30   S3() : a(0) {}
31   S3(const S3 &s3) : a(s3.a) {}
32   S3 operator+(const S3 &arg1) { return arg1; }
33 };
34 int operator+(const S3 &arg1, const S3 &arg2) { return 5; }
35 S3 c;               // expected-note 2 {{'c' defined here}}
36 const S3 ca[5];     // expected-note 2 {{'ca' defined here}}
37 extern const int f; // expected-note 4 {{'f' declared here}}
38 class S4 {
39   int a;
40   S4(); // expected-note {{implicitly declared private here}}
41   S4(const S4 &s4);
42   S4 &operator+(const S4 &arg) { return (*this); }
43 
44 public:
45   S4(int v) : a(v) {}
46 };
47 S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
48 class S5 {
49   int a;
50   S5() : a(0) {} // expected-note {{implicitly declared private here}}
51   S5(const S5 &s5) : a(s5.a) {}
52   S5 &operator+(const S5 &arg);
53 
54 public:
55   S5(int v) : a(v) {}
56 };
57 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}}
58   int a;
59 
60 public:
61   S6() : a(6) {}
62   operator int() { return 6; }
63 } o;
64 
65 S3 h, k;
66 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
67 
68 template <class T>       // expected-note {{declared here}}
69 T tmain(T argc) {
70   const T d = T();       // expected-note 4 {{'d' defined here}}
71   const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
72   T qa[5] = {T()};
73   T i;
74   T &j = i;                // expected-note 4 {{'j' defined here}}
75   S3 &p = k;               // expected-note 2 {{'p' defined here}}
76   const T &r = da[(int)i]; // expected-note 2 {{'r' defined here}}
77   T &q = qa[(int)i];       // expected-note 2 {{'q' defined here}}
78   T fl;
79 #pragma omp parallel
80 #pragma omp sections reduction // expected-error {{expected '(' after 'reduction'}}
81   {
82     foo();
83   }
84 #pragma omp parallel
85 #pragma omp sections reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp sections' are ignored}}
86   {
87     foo();
88   }
89 #pragma omp parallel
90 #pragma omp sections reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
91   {
92     foo();
93   }
94 #pragma omp parallel
95 #pragma omp sections reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
96   {
97     foo();
98   }
99 #pragma omp parallel
100 #pragma omp sections reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
101   {
102     foo();
103   }
104 #pragma omp parallel
105 #pragma omp sections reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
106   {
107     foo();
108   }
109 #pragma omp parallel
110 #pragma omp sections reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
111   {
112     foo();
113   }
114 #pragma omp parallel
115 #pragma omp sections reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
116   {
117     foo();
118   }
119 #pragma omp parallel
120 #pragma omp 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')}}
121   {
122     foo();
123   }
124 #pragma omp parallel
125 #pragma omp sections reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name, array element or array section}}
126   {
127     foo();
128   }
129 #pragma omp parallel
130 #pragma omp sections reduction(foo : argc) //expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
131   {
132     foo();
133   }
134 #pragma omp parallel
135 #pragma omp sections reduction(&& : argc)
136   {
137     foo();
138   }
139 #pragma omp parallel
140 #pragma omp sections reduction(^ : T) // expected-error {{'T' does not refer to a value}}
141   {
142     foo();
143   }
144 #pragma omp parallel
145 #pragma omp sections reduction(+ : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 3 {{const-qualified list item cannot be reduction}} expected-error 3 {{'operator+' is a private member of 'S2'}}
146   {
147     foo();
148   }
149 #pragma omp parallel
150 #pragma omp sections reduction(min : a, b, c, d, f) // expected-error {{a reduction list item 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 list item cannot be reduction}}
151   {
152     foo();
153   }
154 #pragma omp parallel
155 #pragma omp sections reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
156   {
157     foo();
158   }
159 #pragma omp parallel
160 #pragma omp sections reduction(+ : ba) // expected-error {{a reduction list item with array type 'const S2 [5]'}}
161   {
162     foo();
163   }
164 #pragma omp parallel
165 #pragma omp sections reduction(* : ca) // expected-error {{a reduction list item with array type 'const S3 [5]'}}
166   {
167     foo();
168   }
169 #pragma omp parallel
170 #pragma omp sections reduction(- : da) // expected-error {{a reduction list item with array type 'const int [5]'}} expected-error {{a reduction list item with array type 'const float [5]'}}
171   {
172     foo();
173   }
174 #pragma omp parallel
175 #pragma omp sections reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
176   {
177     foo();
178   }
179 #pragma omp parallel
180 #pragma omp sections reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
181   {
182     foo();
183   }
184 #pragma omp parallel
185 #pragma omp sections reduction(&& : S2::S2sc) // expected-error {{const-qualified list item cannot be reduction}}
186   {
187     foo();
188   }
189 #pragma omp parallel
190 #pragma omp sections reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
191   {
192     foo();
193   }
194 #pragma omp parallel
195 #pragma omp sections reduction(+ : o) // expected-error {{no viable overloaded '='}}
196   {
197     foo();
198   }
199 #pragma omp parallel
200 #pragma omp sections private(i), reduction(+ : j), reduction(+ : q) // expected-error 4 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
201   {
202     foo();
203   }
204 #pragma omp parallel private(k)
205 #pragma omp sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
206   {
207     foo();
208   }
209 #pragma omp parallel
210 #pragma omp sections reduction(+ : p), reduction(+ : p) // expected-error 3 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 3 {{previously referenced here}}
211   {
212     foo();
213   }
214 #pragma omp parallel
215 #pragma omp sections reduction(+ : r) // expected-error 2 {{const-qualified list item cannot be reduction}}
216   {
217     foo();
218   }
219 #pragma omp parallel shared(i)
220 #pragma omp parallel reduction(min : i)
221 #pragma omp sections reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
222   {
223     foo();
224   }
225 #pragma omp parallel private(fl)       // expected-note 2 {{defined as private}}
226 #pragma omp sections reduction(+ : fl) // expected-error 2 {{reduction variable must be shared}}
227   {
228     foo();
229   }
230 #pragma omp parallel reduction(* : fl) // expected-note 2 {{defined as reduction}}
231 #pragma omp sections reduction(+ : fl) // expected-error 2 {{reduction variable must be shared}}
232   {
233     foo();
234   }
235 
236   return T();
237 }
238 
239 namespace A {
240 double x;
241 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
242 }
243 namespace B {
244 using A::x;
245 }
246 
247 int main(int argc, char **argv) {
248   const int d = 5;       // expected-note 2 {{'d' defined here}}
249   const int da[5] = {0}; // expected-note {{'da' defined here}}
250   int qa[5] = {0};
251   S4 e(4);
252   S5 g(5);
253   int i;
254   int &j = i;           // expected-note 2 {{'j' defined here}}
255   S3 &p = k;            // expected-note 2 {{'p' defined here}}
256   const int &r = da[i]; // expected-note {{'r' defined here}}
257   int &q = qa[i];       // expected-note {{'q' defined here}}
258   float fl;
259 #pragma omp parallel
260 #pragma omp sections reduction // expected-error {{expected '(' after 'reduction'}}
261   {
262     foo();
263   }
264 #pragma omp parallel
265 #pragma omp sections reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp sections' are ignored}}
266   {
267     foo();
268   }
269 #pragma omp parallel
270 #pragma omp sections reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
271   {
272     foo();
273   }
274 #pragma omp parallel
275 #pragma omp sections reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
276   {
277     foo();
278   }
279 #pragma omp parallel
280 #pragma omp sections reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
281   {
282     foo();
283   }
284 #pragma omp parallel
285 #pragma omp sections reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
286   {
287     foo();
288   }
289 #pragma omp parallel
290 #pragma omp sections reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
291   {
292     foo();
293   }
294 #pragma omp parallel
295 #pragma omp sections reduction(foo : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
296   {
297     foo();
298   }
299 #pragma omp parallel
300 #pragma omp sections reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
301   {
302     foo();
303   }
304 #pragma omp parallel
305 #pragma omp sections reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name, array element or array section}}
306   {
307     foo();
308   }
309 #pragma omp parallel
310 #pragma omp sections reduction(~ : argc) // expected-error {{expected unqualified-id}}
311   {
312     foo();
313   }
314 #pragma omp parallel
315 #pragma omp sections reduction(&& : argc)
316   {
317     foo();
318   }
319 #pragma omp parallel
320 #pragma omp sections reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
321   {
322     foo();
323   }
324 #pragma omp parallel
325 #pragma omp sections reduction(+ : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 2 {{const-qualified list item cannot be reduction}} expected-error {{'operator+' is a private member of 'S2'}}
326   {
327     foo();
328   }
329 #pragma omp parallel
330 #pragma omp sections reduction(min : a, b, c, d, f) // expected-error {{a reduction list item 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 list item cannot be reduction}}
331   {
332     foo();
333   }
334 #pragma omp parallel
335 #pragma omp sections reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
336   {
337     foo();
338   }
339 #pragma omp parallel
340 #pragma omp sections reduction(+ : ba) // expected-error {{a reduction list item with array type 'const S2 [5]'}}
341   {
342     foo();
343   }
344 #pragma omp parallel
345 #pragma omp sections reduction(* : ca) // expected-error {{a reduction list item with array type 'const S3 [5]'}}
346   {
347     foo();
348   }
349 #pragma omp parallel
350 #pragma omp sections reduction(- : da) // expected-error {{a reduction list item with array type 'const int [5]'}}
351   {
352     foo();
353   }
354 #pragma omp parallel
355 #pragma omp sections reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
356   {
357     foo();
358   }
359 #pragma omp parallel
360 #pragma omp sections reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
361   {
362     foo();
363   }
364 #pragma omp parallel
365 #pragma omp sections reduction(&& : S2::S2sc) // expected-error {{const-qualified list item cannot be reduction}}
366   {
367     foo();
368   }
369 #pragma omp parallel
370 #pragma omp 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')}}
371   {
372     foo();
373   }
374 #pragma omp parallel
375 #pragma omp sections reduction(+ : h, k, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
376   {
377     foo();
378   }
379 #pragma omp parallel
380 #pragma omp sections reduction(+ : o) // expected-error {{no viable overloaded '='}}
381   {
382     foo();
383   }
384 #pragma omp parallel
385 #pragma omp sections private(i), reduction(+ : j), reduction(+ : q) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
386   {
387     foo();
388   }
389 #pragma omp parallel private(k)
390 #pragma omp sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
391   {
392     foo();
393   }
394 #pragma omp parallel
395 #pragma omp sections reduction(+ : p), reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
396   {
397     foo();
398   }
399 #pragma omp parallel
400 #pragma omp sections reduction(+ : r) // expected-error {{const-qualified list item cannot be reduction}}
401   {
402     foo();
403   }
404 #pragma omp parallel shared(i)
405 #pragma omp parallel reduction(min : i)
406 #pragma omp sections reduction(max : j) // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
407   {
408     foo();
409   }
410 #pragma omp parallel private(fl)       // expected-note {{defined as private}}
411 #pragma omp sections reduction(+ : fl) // expected-error {{reduction variable must be shared}}
412   {
413     foo();
414   }
415 #pragma omp parallel reduction(* : fl) // expected-note {{defined as reduction}}
416 #pragma omp sections reduction(+ : fl) // expected-error {{reduction variable must be shared}}
417   {
418     foo();
419   }
420   static int m;
421 #pragma omp sections reduction(+ : m) // OK
422   {
423     foo();
424   }
425 
426   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}}
427 }
428