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