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