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