1 // RUN: %clang_cc1 -verify -fopenmp -ferror-limit 150 -o - %s
2 // RUN: %clang_cc1 -verify -fopenmp -std=c++98 -ferror-limit 150 -o - %s
3 // RUN: %clang_cc1 -verify -fopenmp -std=c++11 -ferror-limit 150 -o - %s
4 
5 // RUN: %clang_cc1 -verify -fopenmp-simd -ferror-limit 150 -o - %s
6 // RUN: %clang_cc1 -verify -fopenmp-simd -std=c++98 -ferror-limit 150 -o - %s
7 // RUN: %clang_cc1 -verify -fopenmp-simd -std=c++11 -ferror-limit 150 -o - %s
8 
9 void foo() {
10 }
11 
12 bool foobool(int argc) {
13   return argc;
14 }
15 
16 void foobar(int &ref) {
17 #pragma omp parallel sections reduction(+:ref)
18   {
19     foo();
20   }
21 }
22 
23 struct S1; // expected-note {{declared here}} expected-note 4 {{forward declaration of 'S1'}}
24 extern S1 a;
25 class S2 {
26   mutable int a;
27   S2 &operator+(const S2 &arg) { return (*this); } // expected-note 3 {{implicitly declared private here}}
28 
29 public:
30   S2() : a(0) {}
31   S2(S2 &s2) : a(s2.a) {}
32   static float S2s; // expected-note 2 {{static data member is predetermined as shared}}
33   static const float S2sc; // expected-note 2 {{'S2sc' declared here}}
34 };
35 const float S2::S2sc = 0;
36 S2 b;                     // expected-note 3 {{'b' defined here}}
37 const S2 ba[5];           // expected-note 2 {{'ba' defined here}}
38 class S3 {
39   int a;
40 
41 public:
42   int b;
43   S3() : a(0) {}
44   S3(const S3 &s3) : a(s3.a) {}
45   S3 operator+(const S3 &arg1) { return arg1; }
46 };
47 int operator+(const S3 &arg1, const S3 &arg2) { return 5; }
48 S3 c;               // expected-note 3 {{'c' defined here}}
49 const S3 ca[5];     // expected-note 2 {{'ca' defined here}}
50 extern const int f; // expected-note 4 {{'f' declared here}}
51 class S4 {
52   int a;
53   S4(); // expected-note {{implicitly declared private here}}
54   S4(const S4 &s4);
55   S4 &operator+(const S4 &arg) { return (*this); }
56 
57 public:
58   S4(int v) : a(v) {}
59 };
60 S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
61 class S5 {
62   int a;
63   S5() : a(0) {} // expected-note {{implicitly declared private here}}
64   S5(const S5 &s5) : a(s5.a) {}
65   S5 &operator+(const S5 &arg);
66 
67 public:
68   S5(int v) : a(v) {}
69 };
70 class S6 { // expected-note 3 {{candidate function (the implicit copy assignment operator) not viable: no known conversion from 'int' to 'const S6' for 1st argument}}
71 #if __cplusplus >= 201103L // C++11 or later
72 // expected-note@-2 3 {{candidate function (the implicit move assignment operator) not viable}}
73 #endif
74   int a;
75 
76 public:
77   S6() : a(6) {}
78   operator int() { return 6; }
79 } o;
80 
81 S3 h, k;
82 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
83 
84 template <class T>       // expected-note {{declared here}}
85 T tmain(T argc) {
86   const T d = T();       // expected-note 4 {{'d' defined here}}
87   const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
88   T qa[5] = {T()};
89   T i;
90   T &j = i;                             // expected-note 4 {{'j' defined here}}
91   S3 &p = k;                            // expected-note 2 {{'p' defined here}}
92   const T &r = da[(int)i];              // expected-note 2 {{'r' defined here}}
93   T &q = qa[(int)i];                    // expected-note 2 {{'q' defined here}}
94   T fl;
95 #pragma omp parallel sections reduction // expected-error {{expected '(' after 'reduction'}}
96   {
97     foo();
98   }
99 #pragma omp parallel sections reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
100   {
101     foo();
102   }
103 #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 '('}}
104   {
105     foo();
106   }
107 #pragma omp parallel sections reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
108   {
109     foo();
110   }
111 #pragma omp parallel sections reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
112   {
113     foo();
114   }
115 #pragma omp parallel sections reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
116   {
117     foo();
118   }
119 #pragma omp parallel sections reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
120   {
121     foo();
122   }
123 #pragma omp parallel sections reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
124   {
125     foo();
126   }
127 #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')}}
128   {
129     foo();
130   }
131 #pragma omp parallel sections reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name, array element or array section}}
132   {
133     foo();
134   }
135 #pragma omp parallel sections reduction(foo : argc) //expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'float'}} expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'int'}}
136   {
137     foo();
138   }
139 #pragma omp parallel sections reduction(&& : argc)
140   {
141     foo();
142   }
143 #pragma omp parallel sections reduction(^ : T) // expected-error {{'T' does not refer to a value}}
144   {
145     foo();
146   }
147 #pragma omp parallel 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 2 {{'operator+' is a private member of 'S2'}}
148   {
149     foo();
150   }
151 #pragma omp parallel sections reduction(min : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 4 {{arguments of OpenMP clause 'reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 3 {{const-qualified list item cannot be reduction}}
152   {
153     foo();
154   }
155 #pragma omp parallel sections reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
156   {
157     foo();
158   }
159 #pragma omp parallel sections reduction(+ : ba) // expected-error {{const-qualified list item cannot be reduction}}
160   {
161     foo();
162   }
163 #pragma omp parallel sections reduction(* : ca) // expected-error {{const-qualified list item cannot be reduction}}
164   {
165     foo();
166   }
167 #pragma omp parallel sections reduction(- : da) // expected-error {{const-qualified list item cannot be reduction}} expected-error {{const-qualified list item cannot be reduction}}
168   {
169     foo();
170   }
171 #pragma omp parallel sections reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
172   {
173     foo();
174   }
175 #pragma omp parallel sections reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
176   {
177     foo();
178   }
179 #pragma omp parallel sections reduction(&& : S2::S2sc) // expected-error {{const-qualified list item cannot be reduction}}
180   {
181     foo();
182   }
183 #pragma omp parallel sections reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
184   {
185     foo();
186   }
187 #pragma omp parallel sections reduction(+ : o) // expected-error 2 {{no viable overloaded '='}}
188   {
189     foo();
190   }
191 #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}}
192   {
193     foo();
194   }
195 #pragma omp parallel private(k)
196 #pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
197   {
198     foo();
199   }
200 #pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 2 {{previously referenced here}}
201   {
202     foo();
203   }
204 #pragma omp parallel sections reduction(+ : r) // expected-error 2 {{const-qualified list item cannot be reduction}}
205   {
206     foo();
207   }
208 #pragma omp parallel shared(i)
209 #pragma omp parallel reduction(min : i)
210 #pragma omp parallel sections reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
211   {
212     foo();
213   }
214 #pragma omp parallel private(fl)
215 #pragma omp parallel sections reduction(+ : fl)
216   {
217     foo();
218   }
219 #pragma omp parallel reduction(* : fl)
220 #pragma omp parallel sections reduction(+ : fl)
221   {
222     foo();
223   }
224 
225   return T();
226 }
227 
228 namespace A {
229 double x;
230 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
231 }
232 namespace B {
233 using A::x;
234 }
235 
236 int main(int argc, char **argv) {
237   const int d = 5;       // expected-note 2 {{'d' defined here}}
238   const int da[5] = {0}; // expected-note {{'da' defined here}}
239   int qa[5] = {0};
240   S4 e(4);
241   S5 g(5);
242   int i;
243   int &j = i;                           // expected-note 2 {{'j' defined here}}
244   S3 &p = k;                            // expected-note 2 {{'p' defined here}}
245   const int &r = da[i];                 // expected-note {{'r' defined here}}
246   int &q = qa[i];                       // expected-note {{'q' defined here}}
247   float fl;
248 #pragma omp parallel sections reduction // expected-error {{expected '(' after 'reduction'}}
249   {
250     foo();
251   }
252 #pragma omp parallel sections reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
253   {
254     foo();
255   }
256 #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 '('}}
257   {
258     foo();
259   }
260 #pragma omp parallel sections reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
261   {
262     foo();
263   }
264 #pragma omp parallel sections reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
265   {
266     foo();
267   }
268 #pragma omp parallel sections reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
269   {
270     foo();
271   }
272 #pragma omp parallel sections reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
273   {
274     foo();
275   }
276 #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'}}
277   {
278     foo();
279   }
280 #pragma omp parallel sections reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
281   {
282     foo();
283   }
284 #pragma omp parallel sections reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name, array element or array section}}
285   {
286     foo();
287   }
288 #pragma omp parallel sections reduction(~ : argc) // expected-error {{expected unqualified-id}}
289   {
290     foo();
291   }
292 #pragma omp parallel sections reduction(&& : argc)
293   {
294     foo();
295   }
296 #pragma omp parallel sections reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
297   {
298     foo();
299   }
300 #pragma omp parallel 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'}}
301   {
302     foo();
303   }
304 #pragma omp parallel 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}}
305   {
306     foo();
307   }
308 #pragma omp parallel sections reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
309   {
310     foo();
311   }
312 #pragma omp parallel sections reduction(+ : ba) // expected-error {{const-qualified list item cannot be reduction}}
313   {
314     foo();
315   }
316 #pragma omp parallel sections reduction(* : ca) // expected-error {{const-qualified list item cannot be reduction}}
317   {
318     foo();
319   }
320 #pragma omp parallel sections reduction(- : da) // expected-error {{const-qualified list item cannot be reduction}}
321   {
322     foo();
323   }
324 #pragma omp parallel sections reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
325   {
326     foo();
327   }
328 #pragma omp parallel sections reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
329   {
330     foo();
331   }
332 #pragma omp parallel sections reduction(&& : S2::S2sc) // expected-error {{const-qualified list item cannot be reduction}}
333   {
334     foo();
335   }
336 #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')}}
337   {
338     foo();
339   }
340 #pragma omp parallel sections reduction(+ : h, k, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
341   {
342     foo();
343   }
344 #pragma omp parallel sections reduction(+ : o) // expected-error {{no viable overloaded '='}}
345   {
346     foo();
347   }
348 #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}}
349   {
350     foo();
351   }
352 #pragma omp parallel private(k)
353 #pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
354   {
355     foo();
356   }
357 #pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
358   {
359     foo();
360   }
361 #pragma omp parallel sections reduction(+ : r) // expected-error {{const-qualified list item cannot be reduction}}
362   {
363     foo();
364   }
365 #pragma omp parallel shared(i)
366 #pragma omp parallel reduction(min : i)
367 #pragma omp parallel sections reduction(max : j) // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
368   {
369     foo();
370   }
371 #pragma omp parallel private(fl)
372 #pragma omp parallel sections reduction(+ : fl)
373   {
374     foo();
375   }
376 #pragma omp parallel reduction(* : fl)
377 #pragma omp parallel sections reduction(+ : fl)
378   {
379     foo();
380   }
381   static int m;
382 #pragma omp parallel sections reduction(+ : m) // OK
383   {
384     foo();
385   }
386 
387   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}}
388 }
389