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