1 // RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 -o - %s
2 
3 void foo() {
4 }
5 
6 bool foobool(int argc) {
7   return argc;
8 }
9 
10 struct S1; // expected-note {{declared here}} expected-note 4 {{forward declaration of 'S1'}}
11 extern S1 a;
12 class S2 {
13   mutable int a;
14   S2 &operator+(const S2 &arg) { return (*this); } // expected-note 4 {{implicitly declared private here}}
15 
16 public:
17   S2() : a(0) {}
18   S2(S2 &s2) : a(s2.a) {}
19   static float S2s;
20   static const float S2sc;
21 };
22 const float S2::S2sc = 0; // expected-note 2 {{'S2sc' defined here}}
23 S2 b;                     // expected-note 2 {{'b' defined here}}
24 const S2 ba[5];           // expected-note 2 {{'ba' defined here}}
25 class S3 {
26   int a;
27 
28 public:
29   int b;
30   S3() : a(0) {}
31   S3(const S3 &s3) : a(s3.a) {}
32   S3 operator+(const S3 &arg1) { return arg1; }
33 };
34 int operator+(const S3 &arg1, const S3 &arg2) { return 5; }
35 S3 c;               // expected-note 2 {{'c' defined here}}
36 const S3 ca[5];     // expected-note 2 {{'ca' defined here}}
37 extern const int f; // expected-note 4 {{'f' declared here}}
38 class S4 {
39   int a;
40   S4(); // expected-note {{implicitly declared private here}}
41   S4(const S4 &s4);
42   S4 &operator+(const S4 &arg) { return (*this); }
43 
44 public:
45   S4(int v) : a(v) {}
46 };
47 S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
48 class S5 {
49   int a;
50   S5() : a(0) {} // expected-note {{implicitly declared private here}}
51   S5(const S5 &s5) : a(s5.a) {}
52   S5 &operator+(const S5 &arg);
53 
54 public:
55   S5(int v) : a(v) {}
56 };
57 class S6 { // expected-note 2 {{candidate function (the implicit copy assignment operator) not viable: no known conversion from 'int' to 'const S6' for 1st argument}}
58   int a;
59 
60 public:
61   S6() : a(6) {}
62   operator int() { return 6; }
63 } o;
64 
65 S3 h, k;
66 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
67 
68 template <class T>       // expected-note {{declared here}}
69 T tmain(T argc) {
70   const T d = T();       // expected-note 4 {{'d' defined here}}
71   const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
72   T qa[5] = {T()};
73   T i;
74   T &j = i;                    // expected-note 4 {{'j' defined here}}
75   S3 &p = k;                   // expected-note 2 {{'p' defined here}}
76   const T &r = da[(int)i];     // expected-note 2 {{'r' defined here}}
77   T &q = qa[(int)i];           // expected-note 2 {{'q' defined here}}
78   T fl;
79 #pragma omp parallel reduction // expected-error {{expected '(' after 'reduction'}}
80   foo();
81 #pragma omp parallel reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
82   foo();
83 #pragma omp parallel reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
84   foo();
85 #pragma omp parallel reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
86   foo();
87 #pragma omp parallel reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
88   foo();
89 #pragma omp parallel reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
90   foo();
91 #pragma omp parallel reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
92   foo();
93 #pragma omp parallel reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
94   foo();
95 #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')}}
96   foo();
97 #pragma omp parallel reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name, array element or array section}}
98   foo();
99 #pragma omp parallel reduction(foo : argc) //expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
100   foo();
101 #pragma omp parallel reduction(&& : argc)
102   foo();
103 #pragma omp parallel reduction(^ : T) // expected-error {{'T' does not refer to a value}}
104   foo();
105 #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 3 {{'operator+' is a private member of 'S2'}}
106   foo();
107 #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 3 {{const-qualified list item cannot be reduction}}
108   foo();
109 #pragma omp parallel reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
110   foo();
111 #pragma omp parallel reduction(+ : ba) // expected-error {{a reduction list item with array type 'const S2 [5]'}}
112   foo();
113 #pragma omp parallel reduction(* : ca) // expected-error {{a reduction list item with array type 'const S3 [5]'}}
114   foo();
115 #pragma omp parallel reduction(- : da) // expected-error {{a reduction list item with array type 'const int [5]'}} expected-error {{a reduction list item with array type 'const float [5]'}}
116   foo();
117 #pragma omp parallel reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
118   foo();
119 #pragma omp parallel reduction(&& : S2::S2s)
120   foo();
121 #pragma omp parallel reduction(&& : S2::S2sc) // expected-error {{const-qualified list item cannot be reduction}}
122   foo();
123 #pragma omp parallel reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
124   foo();
125 #pragma omp parallel reduction(+ : o) // expected-error {{no viable overloaded '='}}
126   foo();
127 #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}}
128   foo();
129 #pragma omp parallel private(k)
130 #pragma omp parallel reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
131   foo();
132 #pragma omp parallel reduction(+ : p), reduction(+ : p) // expected-error 3 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 3 {{previously referenced here}}
133   foo();
134 #pragma omp parallel reduction(+ : r) // expected-error 2 {{const-qualified list item cannot be reduction}}
135   foo();
136 #pragma omp parallel shared(i)
137 #pragma omp parallel reduction(min : i)
138 #pragma omp parallel reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
139   foo();
140 #pragma omp parallel
141 #pragma omp for private(fl)
142   for (int i = 0; i < 10; ++i)
143 #pragma omp parallel reduction(+ : fl)
144     foo();
145 #pragma omp parallel
146 #pragma omp for reduction(- : fl)
147   for (int i = 0; i < 10; ++i)
148 #pragma omp parallel reduction(+ : fl)
149     foo();
150 
151   return T();
152 }
153 
154 namespace A {
155 double x;
156 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
157 }
158 namespace B {
159 using A::x;
160 }
161 
162 int main(int argc, char **argv) {
163   const int d = 5;       // expected-note 2 {{'d' defined here}}
164   const int da[5] = {0}; // expected-note {{'da' defined here}}
165   int qa[5] = {0};
166   S4 e(4);
167   S5 g(5);
168   int i;
169   int &j = i;                  // expected-note 2 {{'j' defined here}}
170   S3 &p = k;                   // expected-note 2 {{'p' defined here}}
171   const int &r = da[i];        // expected-note {{'r' defined here}}
172   int &q = qa[i];              // expected-note {{'q' defined here}}
173   float fl;
174 #pragma omp parallel reduction // expected-error {{expected '(' after 'reduction'}}
175   foo();
176 #pragma omp parallel reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
177   foo();
178 #pragma omp parallel reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
179   foo();
180 #pragma omp parallel reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
181   foo();
182 #pragma omp parallel reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
183   foo();
184 #pragma omp parallel reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
185   foo();
186 #pragma omp parallel reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
187   foo();
188 #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'}}
189   foo();
190 #pragma omp parallel reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
191   foo();
192 #pragma omp parallel reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name, array element or array section}}
193   foo();
194 #pragma omp parallel reduction(~ : argc) // expected-error {{expected unqualified-id}}
195   foo();
196 #pragma omp parallel reduction(&& : argc)
197   foo();
198 #pragma omp parallel reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
199   foo();
200 #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'}}
201   foo();
202 #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}}
203   foo();
204 #pragma omp parallel reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
205   foo();
206 #pragma omp parallel reduction(+ : ba) // expected-error {{a reduction list item with array type 'const S2 [5]'}}
207   foo();
208 #pragma omp parallel reduction(* : ca) // expected-error {{a reduction list item with array type 'const S3 [5]'}}
209   foo();
210 #pragma omp parallel reduction(- : da) // expected-error {{a reduction list item with array type 'const int [5]'}}
211   foo();
212 #pragma omp parallel reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
213   foo();
214 #pragma omp parallel reduction(&& : S2::S2s)
215   foo();
216 #pragma omp parallel reduction(&& : S2::S2sc) // expected-error {{const-qualified list item cannot be reduction}}
217   foo();
218 #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')}}
219   foo();
220 #pragma omp parallel reduction(+ : h, k, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
221   foo();
222 #pragma omp parallel reduction(+ : o) // expected-error {{no viable overloaded '='}}
223   foo();
224 #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}}
225   foo();
226 #pragma omp parallel private(k)
227 #pragma omp parallel reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
228   foo();
229 #pragma omp parallel reduction(+ : p), reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
230   foo();
231 #pragma omp parallel reduction(+ : r) // expected-error {{const-qualified list item cannot be reduction}}
232   foo();
233 #pragma omp parallel shared(i)
234 #pragma omp parallel reduction(min : i)
235 #pragma omp parallel reduction(max : j) // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
236   foo();
237 #pragma omp parallel
238 #pragma omp for private(fl)
239   for (int i = 0; i < 10; ++i)
240 #pragma omp parallel reduction(+ : fl)
241     foo();
242 #pragma omp parallel
243 #pragma omp for reduction(- : fl)
244   for (int i = 0; i < 10; ++i)
245 #pragma omp parallel reduction(+ : fl)
246     foo();
247   static int m;
248 #pragma omp parallel reduction(+ : m) // OK
249   m++;
250 
251   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}}
252 }
253