1 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp -fopenmp-version=45 -ferror-limit 150 -o - %s -Wuninitialized
2 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp -fopenmp-version=45 -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
3 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp -fopenmp-version=45 -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
4 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp -fopenmp-version=50 -ferror-limit 150 -o - %s -Wuninitialized
5 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp -fopenmp-version=50 -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
6 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp -fopenmp-version=50 -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
7
8 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-simd -fopenmp-version=45 -ferror-limit 150 -o - %s -Wuninitialized
9 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-simd -fopenmp-version=45 -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
10 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-simd -fopenmp-version=45 -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
11 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-simd -fopenmp-version=50 -ferror-limit 150 -o - %s -Wuninitialized
12 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-simd -fopenmp-version=50 -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
13 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-simd -fopenmp-version=50 -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
14
15 extern int omp_default_mem_alloc;
xxx(int argc)16 void xxx(int argc) {
17 int fp; // expected-note {{initialize the variable 'fp' to silence this warning}}
18 #pragma omp parallel
19 #pragma omp sections reduction(+:fp) // expected-warning {{variable 'fp' is uninitialized when used here}}
20 {
21 for (int i = 0; i < 10; ++i)
22 ;
23 }
24 }
25
foo()26 void foo() {
27 }
28
foobool(int argc)29 bool foobool(int argc) {
30 return argc;
31 }
32
foobar(int & ref)33 void foobar(int &ref) {
34 #pragma omp parallel
35 #pragma omp sections reduction(+:ref)
36 {
37 foo();
38 }
39 }
40
41 struct S1; // expected-note {{declared here}} expected-note 4 {{forward declaration of 'S1'}}
42 extern S1 a;
43 class S2 {
44 mutable int a;
operator +(const S2 & arg)45 S2 &operator+(const S2 &arg) { return (*this); } // expected-note 3 {{implicitly declared private here}}
46
47 public:
S2()48 S2() : a(0) {}
S2(S2 & s2)49 S2(S2 &s2) : a(s2.a) {}
50 static float S2s; // expected-note 2 {{static data member is predetermined as shared}}
51 static const float S2sc; // expected-note 2 {{'S2sc' declared here}}
52 };
53 const float S2::S2sc = 0;
54 S2 b; // expected-note 3 {{'b' defined here}}
55 const S2 ba[5]; // expected-note 2 {{'ba' defined here}}
56 class S3 {
57 int a;
58
59 public:
60 int b;
S3()61 S3() : a(0) {}
S3(const S3 & s3)62 S3(const S3 &s3) : a(s3.a) {}
operator +(const S3 & arg1)63 S3 operator+(const S3 &arg1) { return arg1; }
64 };
operator +(const S3 & arg1,const S3 & arg2)65 int operator+(const S3 &arg1, const S3 &arg2) { return 5; }
66 S3 c; // expected-note 3 {{'c' defined here}}
67 const S3 ca[5]; // expected-note 2 {{'ca' defined here}}
68 extern const int f; // expected-note 4 {{'f' declared here}}
69 class S4 {
70 int a;
71 S4(); // expected-note {{implicitly declared private here}}
72 S4(const S4 &s4);
operator +(const S4 & arg)73 S4 &operator+(const S4 &arg) { return (*this); }
74
75 public:
S4(int v)76 S4(int v) : a(v) {}
77 };
operator &=(S4 & arg1,S4 & arg2)78 S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
79 class S5 {
80 int a;
S5()81 S5() : a(0) {} // expected-note {{implicitly declared private here}}
S5(const S5 & s5)82 S5(const S5 &s5) : a(s5.a) {}
83 S5 &operator+(const S5 &arg);
84
85 public:
S5(int v)86 S5(int v) : a(v) {}
87 };
88 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}}
89 #if __cplusplus >= 201103L // C++11 or later
90 // expected-note@-2 3 {{candidate function (the implicit move assignment operator) not viable}}
91 #endif
92 int a;
93
94 public:
S6()95 S6() : a(6) {}
operator int()96 operator int() { return 6; }
97 } o;
98
99 S3 h, k;
100 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
101
102 template <class T> // expected-note {{declared here}}
tmain(T argc)103 T tmain(T argc) {
104 const T d = T(); // expected-note 4 {{'d' defined here}}
105 const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
106 T qa[5] = {T()};
107 T i, z;
108 T &j = i; // expected-note 4 {{'j' defined here}}
109 S3 &p = k; // expected-note 2 {{'p' defined here}}
110 const T &r = da[(int)i]; // expected-note 2 {{'r' defined here}}
111 T &q = qa[(int)i]; // expected-note 2 {{'q' defined here}}
112 T fl;
113 #pragma omp parallel
114 #pragma omp sections reduction // expected-error {{expected '(' after 'reduction'}}
115 {
116 foo();
117 }
118 #pragma omp parallel
119 #pragma omp sections reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp sections' are ignored}}
120 {
121 foo();
122 }
123 #pragma omp parallel
124 #pragma omp sections reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
125 {
126 foo();
127 }
128 #pragma omp parallel
129 #pragma omp sections reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
130 {
131 foo();
132 }
133 #pragma omp parallel
134 #pragma omp sections reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
135 {
136 foo();
137 }
138 #pragma omp parallel
139 #pragma omp sections reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
140 {
141 foo();
142 }
143 #pragma omp parallel
144 #pragma omp sections reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
145 {
146 foo();
147 }
148 #pragma omp parallel
149 #pragma omp sections reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
150 {
151 foo();
152 }
153 #pragma omp parallel
154 #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')}}
155 {
156 foo();
157 }
158 #pragma omp parallel
159 #pragma omp sections reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name, array element or array section}}
160 {
161 foo();
162 }
163 #pragma omp parallel
164 #pragma omp 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'}}
165 {
166 foo();
167 }
168 #pragma omp parallel
169 #pragma omp sections reduction(&& : argc) allocate , allocate(, allocate(omp_default , allocate(omp_default_mem_alloc, allocate(omp_default_mem_alloc:, allocate(omp_default_mem_alloc: argc, allocate(omp_default_mem_alloc: argv), allocate(argv) // expected-error {{expected '(' after 'allocate'}} expected-error 2 {{expected expression}} expected-error 2 {{expected ')'}} expected-error {{use of undeclared identifier 'omp_default'}} expected-note 2 {{to match this '('}}
170 {
171 foo();
172 }
173 #pragma omp parallel
174 #pragma omp sections reduction(^ : T) // expected-error {{'T' does not refer to a value}}
175 {
176 foo();
177 }
178 #pragma omp parallel
179 #pragma omp sections reduction(+ : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 3 {{const-qualified variable cannot be reduction}} expected-error 2 {{'operator+' is a private member of 'S2'}}
180 {
181 foo();
182 }
183 #pragma omp parallel
184 #pragma omp 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 variable cannot be reduction}}
185 {
186 foo();
187 }
188 #pragma omp parallel
189 #pragma omp sections reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
190 {
191 foo();
192 }
193 #pragma omp parallel
194 #pragma omp sections reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
195 {
196 foo();
197 }
198 #pragma omp parallel
199 #pragma omp sections reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
200 {
201 foo();
202 }
203 #pragma omp parallel
204 #pragma omp sections reduction(- : da) // expected-error {{const-qualified variable cannot be reduction}} expected-error {{const-qualified variable cannot be reduction}}
205 {
206 foo();
207 }
208 #pragma omp parallel
209 #pragma omp sections reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
210 {
211 foo();
212 }
213 #pragma omp parallel
214 #pragma omp sections reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
215 {
216 foo();
217 }
218 #pragma omp parallel
219 #pragma omp sections reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
220 {
221 foo();
222 }
223 #pragma omp parallel
224 #pragma omp sections reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
225 {
226 foo();
227 }
228 #pragma omp parallel
229 #pragma omp sections reduction(+ : o, z) // expected-error 2 {{no viable overloaded '='}}
230 {
231 foo();
232 }
233 #pragma omp parallel
234 #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}}
235 {
236 foo();
237 }
238 #pragma omp parallel private(k)
239 #pragma omp sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
240 {
241 foo();
242 }
243 #pragma omp parallel
244 #pragma omp sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 2 {{previously referenced here}}
245 {
246 foo();
247 }
248 #pragma omp parallel
249 #pragma omp sections reduction(+ : r) // expected-error 2 {{const-qualified variable cannot be reduction}}
250 {
251 foo();
252 }
253 #pragma omp parallel shared(i)
254 #pragma omp parallel reduction(min : i)
255 #pragma omp sections reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
256 {
257 foo();
258 }
259 #pragma omp parallel private(fl) // expected-note 2 {{defined as private}}
260 #pragma omp sections reduction(+ : fl) // expected-error 2 {{reduction variable must be shared}}
261 {
262 foo();
263 }
264 #pragma omp parallel reduction(* : fl) // expected-note 2 {{defined as reduction}}
265 #pragma omp sections reduction(+ : fl) // expected-error 2 {{reduction variable must be shared}}
266 {
267 foo();
268 }
269
270 return T();
271 }
272
273 namespace A {
274 double x;
275 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
276 }
277 namespace B {
278 using A::x;
279 }
280
main(int argc,char ** argv)281 int main(int argc, char **argv) {
282 const int d = 5; // expected-note 2 {{'d' defined here}}
283 const int da[5] = {0}; // expected-note {{'da' defined here}}
284 int qa[5] = {0};
285 S4 e(4);
286 S5 g(5);
287 int i, z;
288 int &j = i; // expected-note 2 {{'j' defined here}}
289 S3 &p = k; // expected-note 2 {{'p' defined here}}
290 const int &r = da[i]; // expected-note {{'r' defined here}}
291 int &q = qa[i]; // expected-note {{'q' defined here}}
292 float fl;
293 #pragma omp parallel
294 #pragma omp sections reduction // expected-error {{expected '(' after 'reduction'}}
295 {
296 foo();
297 }
298 #pragma omp parallel
299 #pragma omp sections reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp sections' are ignored}}
300 {
301 foo();
302 }
303 #pragma omp parallel
304 #pragma omp sections reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
305 {
306 foo();
307 }
308 #pragma omp parallel
309 #pragma omp sections reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
310 {
311 foo();
312 }
313 #pragma omp parallel
314 #pragma omp sections reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
315 {
316 foo();
317 }
318 #pragma omp parallel
319 #pragma omp sections reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
320 {
321 foo();
322 }
323 #pragma omp parallel
324 #pragma omp sections reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
325 {
326 foo();
327 }
328 #pragma omp parallel
329 #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'}}
330 {
331 foo();
332 }
333 #pragma omp parallel
334 #pragma omp sections reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
335 {
336 foo();
337 }
338 #pragma omp parallel
339 #pragma omp sections reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name, array element or array section}}
340 {
341 foo();
342 }
343 #pragma omp parallel
344 #pragma omp sections reduction(~ : argc) // expected-error {{expected unqualified-id}}
345 {
346 foo();
347 }
348 #pragma omp parallel
349 #pragma omp sections reduction(&& : argc, z)
350 {
351 foo();
352 }
353 #pragma omp parallel
354 #pragma omp sections reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
355 {
356 foo();
357 }
358 #pragma omp parallel
359 #pragma omp sections reduction(+ : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 2 {{const-qualified variable cannot be reduction}} expected-error {{'operator+' is a private member of 'S2'}}
360 {
361 foo();
362 }
363 #pragma omp parallel
364 #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 variable cannot be reduction}}
365 {
366 foo();
367 }
368 #pragma omp parallel
369 #pragma omp sections reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
370 {
371 foo();
372 }
373 #pragma omp parallel
374 #pragma omp sections reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
375 {
376 foo();
377 }
378 #pragma omp parallel
379 #pragma omp sections reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
380 {
381 foo();
382 }
383 #pragma omp parallel
384 #pragma omp sections reduction(- : da) // expected-error {{const-qualified variable cannot be reduction}}
385 {
386 foo();
387 }
388 #pragma omp parallel
389 #pragma omp sections reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
390 {
391 foo();
392 }
393 #pragma omp parallel
394 #pragma omp sections reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
395 {
396 foo();
397 }
398 #pragma omp parallel
399 #pragma omp sections reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
400 {
401 foo();
402 }
403 #pragma omp parallel
404 #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')}}
405 {
406 foo();
407 }
408 #pragma omp parallel
409 #pragma omp sections reduction(+ : h, k, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
410 {
411 foo();
412 }
413 #pragma omp parallel
414 #pragma omp sections reduction(+ : o) // expected-error {{no viable overloaded '='}}
415 {
416 foo();
417 }
418 #pragma omp parallel
419 #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}}
420 {
421 foo();
422 }
423 #pragma omp parallel private(k)
424 #pragma omp sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
425 {
426 foo();
427 }
428 #pragma omp parallel
429 #pragma omp sections reduction(+ : p), reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
430 {
431 foo();
432 }
433 #pragma omp parallel
434 #pragma omp sections reduction(+ : r) // expected-error {{const-qualified variable cannot be reduction}}
435 {
436 foo();
437 }
438 #pragma omp parallel shared(i)
439 #pragma omp parallel reduction(min : i)
440 #pragma omp sections reduction(max : j) // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
441 {
442 foo();
443 }
444 #pragma omp parallel private(fl) // expected-note {{defined as private}}
445 #pragma omp sections reduction(+ : fl) // expected-error {{reduction variable must be shared}}
446 {
447 foo();
448 }
449 #pragma omp parallel reduction(* : fl) // expected-note {{defined as reduction}}
450 #pragma omp sections reduction(+ : fl) // expected-error {{reduction variable must be shared}}
451 {
452 foo();
453 }
454 static int m;
455 #pragma omp sections reduction(+ : m) // OK
456 {
457 foo();
458 }
459 #pragma omp sections reduction(task, + : m) // omp45-error 2 {{expected expression}} omp45-warning {{missing ':' after reduction identifier - ignoring}}
460 {
461 foo();
462 }
463
464 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}}
465 }
466