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 void foo() {
6 }
7 
8 bool foobool(int argc) {
9   return argc;
10 }
11 
12 void foobar(int &ref) {
13 #pragma omp taskgroup task_reduction(+:ref)
14 #pragma omp task in_reduction(+:ref)
15   foo();
16 }
17 
18 void foobar1(int &ref) {
19 #pragma omp taskgroup task_reduction(+:ref)
20 #pragma omp task in_reduction(-:ref)
21   foo();
22 }
23 
24 #pragma omp declare reduction (red:int:omp_out += omp_in)
25 
26 void foobar2(int &ref) {
27 #pragma omp taskgroup task_reduction(+:ref) // expected-note {{previously marked as task_reduction with different reduction operation}}
28 #pragma omp task in_reduction(red:ref) // expected-error{{in_reduction variable must have the same reduction operation as in a task_reduction clause}}
29   foo();
30 }
31 
32 void foobar3(int &ref) {
33 #pragma omp taskgroup task_reduction(red:ref) // expected-note {{previously marked as task_reduction with different reduction operation}}
34 #pragma omp task in_reduction(min:ref)  // expected-error{{in_reduction variable must have the same reduction operation as in a task_reduction clause}}
35   foo();
36 }
37 
38 void foobar4(int &ref) {
39 #pragma omp task in_reduction(min:ref) // expected-error {{in_reduction variable must appear in a task_reduction clause}}
40   foo();
41 }
42 
43 struct S1; // expected-note {{declared here}} expected-note 4 {{forward declaration of 'S1'}}
44 extern S1 a;
45 class S2 {
46   mutable int a;
47   S2 &operator+(const S2 &arg) { return (*this); } // expected-note 3 {{implicitly declared private here}}
48 
49 public:
50   S2() : a(0) {}
51   S2(S2 &s2) : a(s2.a) {}
52   static float S2s; // expected-note 2 {{static data member is predetermined as shared}}
53   static const float S2sc; // expected-note 2 {{'S2sc' declared here}}
54 };
55 const float S2::S2sc = 0;
56 S2 b;                     // expected-note 3 {{'b' defined here}}
57 const S2 ba[5];           // expected-note 2 {{'ba' defined here}}
58 class S3 {
59   int a;
60 
61 public:
62   int b;
63   S3() : a(0) {}
64   S3(const S3 &s3) : a(s3.a) {}
65   S3 operator+(const S3 &arg1) { return arg1; }
66 };
67 int operator+(const S3 &arg1, const S3 &arg2) { return 5; }
68 S3 c;               // expected-note 3 {{'c' defined here}}
69 const S3 ca[5];     // expected-note 2 {{'ca' defined here}}
70 extern const int f; // expected-note 4 {{'f' declared here}}
71 class S4 {
72   int a;
73   S4(); // expected-note {{implicitly declared private here}}
74   S4(const S4 &s4);
75   S4 &operator+(const S4 &arg) { return (*this); }
76 
77 public:
78   S4(int v) : a(v) {}
79 };
80 S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
81 class S5 {
82   int a;
83   S5() : a(0) {} // expected-note {{implicitly declared private here}}
84   S5(const S5 &s5) : a(s5.a) {}
85   S5 &operator+(const S5 &arg);
86 
87 public:
88   S5(int v) : a(v) {}
89 };
90 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}}
91 #if __cplusplus >= 201103L // C++11 or later
92 // expected-note@-2 3 {{candidate function (the implicit move assignment operator) not viable}}
93 #endif
94   int a;
95 
96 public:
97   S6() : a(6) {}
98   operator int() { return 6; }
99 } o;
100 
101 S3 h, k;
102 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
103 
104 template <class T>       // expected-note {{declared here}}
105 T tmain(T argc) {
106   const T d = T();       // expected-note 4 {{'d' defined here}}
107   const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
108   T qa[5] = {T()};
109   T i;
110   T &j = i;                    // expected-note 2 {{'j' defined here}}
111   S3 &p = k;                   // expected-note 2 {{'p' defined here}}
112   const T &r = da[(int)i];     // expected-note 2 {{'r' defined here}}
113   T &q = qa[(int)i];
114   T fl;
115 #pragma omp taskgroup task_reduction(+:argc)
116 #pragma omp task in_reduction // expected-error {{expected '(' after 'in_reduction'}}
117   foo();
118 #pragma omp taskgroup task_reduction(+:argc)
119 #pragma omp task in_reduction + // expected-error {{expected '(' after 'in_reduction'}} expected-warning {{extra tokens at the end of '#pragma omp task' are ignored}}
120   foo();
121 #pragma omp taskgroup task_reduction(+:argc)
122 #pragma omp task in_reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
123   foo();
124 #pragma omp taskgroup task_reduction(+:argc)
125 #pragma omp task in_reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
126   foo();
127 #pragma omp taskgroup task_reduction(+:argc)
128 #pragma omp task in_reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
129   foo();
130 #pragma omp taskgroup task_reduction(+:argc)
131 #pragma omp task in_reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}}
132   foo();
133 #pragma omp taskgroup task_reduction(+:argc)
134 #pragma omp task in_reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
135   foo();
136 #pragma omp taskgroup task_reduction(&:argc) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
137 #pragma omp task in_reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
138   foo();
139 #pragma omp taskgroup task_reduction(|:argc) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
140 #pragma omp task in_reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
141   foo();
142 #pragma omp task in_reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name, array element or array section}}
143   foo();
144 #pragma omp task in_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'}}
145   foo();
146 #pragma omp taskgroup task_reduction(&&:argc)
147 #pragma omp task in_reduction(&& : argc)
148   foo();
149 #pragma omp task in_reduction(^ : T) // expected-error {{'T' does not refer to a value}}
150   foo();
151 #pragma omp taskgroup task_reduction(+:c)
152 #pragma omp task in_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'}} expected-error 2 {{in_reduction variable must appear in a task_reduction clause}}
153   foo();
154 #pragma omp task in_reduction(min : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 4 {{arguments of OpenMP clause 'in_reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 3 {{const-qualified list item cannot be reduction}}
155   foo();
156 #pragma omp task in_reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
157   foo();
158 #pragma omp task in_reduction(+ : ba) // expected-error {{const-qualified list item cannot be reduction}}
159   foo();
160 #pragma omp task in_reduction(* : ca) // expected-error {{const-qualified list item cannot be reduction}}
161   foo();
162 #pragma omp task in_reduction(- : da) // expected-error {{const-qualified list item cannot be reduction}} expected-error {{const-qualified list item cannot be reduction}}
163   foo();
164 #pragma omp task in_reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}} expected-error {{in_reduction variable must appear in a task_reduction clause}}
165   foo();
166 #pragma omp task in_reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
167   foo();
168 #pragma omp task in_reduction(&& : S2::S2sc) // expected-error {{const-qualified list item cannot be reduction}}
169   foo();
170 #pragma omp taskgroup task_reduction(+:k)
171 #pragma omp task in_reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
172   foo();
173 #pragma omp task in_reduction(+ : o) // expected-error 2 {{no viable overloaded '='}}
174   foo();
175 #pragma omp parallel private(k)
176 #pragma omp task in_reduction(+ : p), in_reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'in_reduction' must reference the same object in all threads}}
177   foo();
178 #pragma omp taskgroup task_reduction(+:p)
179 #pragma omp task in_reduction(+ : p), in_reduction(+ : p) // expected-error 2 {{variable can appear only once in OpenMP 'in_reduction' clause}} expected-note 2 {{previously referenced here}}
180   foo();
181 #pragma omp task in_reduction(+ : r) // expected-error 2 {{const-qualified list item cannot be reduction}}
182   foo();
183 #pragma omp parallel shared(i)
184 #pragma omp parallel reduction(min : i)
185 #pragma omp task in_reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'in_reduction' must reference the same object in all threads}}
186   foo();
187 #pragma omp taskgroup task_reduction(+:fl)
188 #pragma omp task in_reduction(+ : fl)
189     foo();
190 #pragma omp parallel
191 #pragma omp for reduction(- : fl)
192   for (int i = 0; i < 10; ++i)
193 #pragma omp taskgroup task_reduction(+:fl)
194 #pragma omp task in_reduction(+ : fl)
195     foo();
196 
197   return T();
198 }
199 
200 namespace A {
201 double x;
202 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
203 }
204 namespace B {
205 using A::x;
206 }
207 
208 int main(int argc, char **argv) {
209   const int d = 5;       // expected-note 2 {{'d' defined here}}
210   const int da[5] = {0}; // expected-note {{'da' defined here}}
211   int qa[5] = {0};
212   S4 e(4);
213   S5 g(5);
214   int i;
215   int &j = i;                  // expected-note {{'j' defined here}}
216   S3 &p = k;                   // expected-note 2 {{'p' defined here}}
217   const int &r = da[i];        // expected-note {{'r' defined here}}
218   int &q = qa[i];
219   float fl;
220 #pragma omp task in_reduction // expected-error {{expected '(' after 'in_reduction'}}
221   foo();
222 #pragma omp task in_reduction + // expected-error {{expected '(' after 'in_reduction'}} expected-warning {{extra tokens at the end of '#pragma omp task' are ignored}}
223   foo();
224 #pragma omp task in_reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
225   foo();
226 #pragma omp task in_reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
227   foo();
228 #pragma omp task in_reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
229   foo();
230 #pragma omp task in_reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}}
231   foo();
232 #pragma omp task in_reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
233   foo();
234 #pragma omp task in_reduction(foo : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
235   foo();
236 #pragma omp taskgroup task_reduction(|:argc)
237 {
238 #pragma omp taskgroup task_reduction(+:argc) // expected-note {{previously marked as task_reduction with different reduction operation}}
239 {
240 #pragma omp task in_reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{in_reduction variable must have the same reduction operation as in a task_reduction clause}}
241   foo();
242 }
243 #pragma omp task in_reduction(| : argc)
244   foo();
245 }
246 #pragma omp task in_reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name, array element or array section}}
247   foo();
248 #pragma omp task in_reduction(~ : argc) // expected-error {{expected unqualified-id}}
249   foo();
250 #pragma omp taskgroup task_reduction(&&:argc)
251 #pragma omp task in_reduction(&& : argc)
252   foo();
253 #pragma omp task in_reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
254   foo();
255 #pragma omp taskgroup task_reduction(+:c)
256 #pragma omp task in_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'}} expected-error {{in_reduction variable must appear in a task_reduction clause}}
257   foo();
258 #pragma omp task in_reduction(min : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 2 {{arguments of OpenMP clause 'in_reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 2 {{const-qualified list item cannot be reduction}}
259   foo();
260 #pragma omp task in_reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
261   foo();
262 #pragma omp task in_reduction(+ : ba) // expected-error {{const-qualified list item cannot be reduction}}
263   foo();
264 #pragma omp task in_reduction(* : ca) // expected-error {{const-qualified list item cannot be reduction}}
265   foo();
266 #pragma omp task in_reduction(- : da) // expected-error {{const-qualified list item cannot be reduction}}
267   foo();
268 #pragma omp task in_reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
269   foo();
270 #pragma omp task in_reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
271   foo();
272 #pragma omp task in_reduction(&& : S2::S2sc) // expected-error {{const-qualified list item cannot be reduction}}
273   foo();
274 #pragma omp task in_reduction(& : e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{nvalid 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')}}
275   foo();
276 #pragma omp taskgroup task_reduction(+:k)
277 #pragma omp task in_reduction(+ : h, k, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
278   foo();
279 #pragma omp task in_reduction(+ : o) // expected-error {{no viable overloaded '='}}
280   foo();
281 #pragma omp parallel private(k)
282 #pragma omp task in_reduction(+ : p), in_reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'in_reduction' must reference the same object in all threads}}
283   foo();
284 #pragma omp taskgroup task_reduction(+:p)
285 #pragma omp task in_reduction(+ : p), in_reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'in_reduction' clause}} expected-note {{previously referenced here}}
286   foo();
287 #pragma omp task in_reduction(+ : r) // expected-error {{const-qualified list item cannot be reduction}}
288   foo();
289 #pragma omp parallel shared(i)
290 #pragma omp parallel reduction(min : i)
291 #pragma omp task in_reduction(max : j) // expected-error {{argument of OpenMP clause 'in_reduction' must reference the same object in all threads}}
292   foo();
293 #pragma omp parallel
294 #pragma omp for private(fl)
295   for (int i = 0; i < 10; ++i)
296 #pragma omp taskgroup task_reduction(+:fl)
297 #pragma omp task in_reduction(+ : fl)
298     foo();
299 #pragma omp taskgroup task_reduction(+:fl)
300 #pragma omp task in_reduction(+ : fl)
301     foo();
302   static int m;
303 #pragma omp taskgroup task_reduction(+:m)
304 #pragma omp task in_reduction(+ : m) // OK
305   m++;
306 
307   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}}
308 }
309