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