1 // RUN: %clang_cc1 -verify -fopenmp -ferror-limit 150 -o - %s -Wuninitialized
2 // RUN: %clang_cc1 -verify -fopenmp -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
3 // RUN: %clang_cc1 -verify -fopenmp -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
4 
5 // RUN: %clang_cc1 -verify -fopenmp-simd -ferror-limit 150 -o - %s -Wuninitialized
6 // RUN: %clang_cc1 -verify -fopenmp-simd -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
7 // RUN: %clang_cc1 -verify -fopenmp-simd -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
8 
9 extern int omp_default_mem_alloc;
10 void foo() {
11 }
12 
13 bool foobool(int argc) {
14   return argc;
15 }
16 
17 void foobar(int &ref) {
18 #pragma omp parallel reduction(+:ref)
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 };
69 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}}
70 #if __cplusplus >= 201103L // C++11 or later
71 // expected-note@-2 3 {{candidate function (the implicit move assignment operator) not viable}}
72 #endif
73   int a;
74 
75 public:
76   S6() : a(6) {}
77   operator int() { return 6; }
78 } o;
79 
80 S3 h, k;
81 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
82 
83 template <class T>       // expected-note {{declared here}}
84 T tmain(T argc) {
85   const T d = T();       // expected-note 4 {{'d' defined here}}
86   const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
87   T qa[5] = {T()};
88   T i, z;
89   T &j = i;                    // expected-note 4 {{'j' defined here}}
90   S3 &p = k;                   // expected-note 2 {{'p' defined here}}
91   const T &r = da[(int)i];     // expected-note 2 {{'r' defined here}}
92   T &q = qa[(int)i];           // expected-note 2 {{'q' defined here}}
93   T fl;
94 #pragma omp parallel reduction // expected-error {{expected '(' after 'reduction'}}
95   foo();
96 #pragma omp parallel reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
97   foo();
98 #pragma omp parallel reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
99   foo();
100 #pragma omp parallel reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
101   foo();
102 #pragma omp parallel reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
103   foo();
104 #pragma omp parallel reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
105   foo();
106 #pragma omp parallel reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
107   foo();
108 #pragma omp parallel reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
109   foo();
110 #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')}}
111   foo();
112 #pragma omp parallel reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name, array element or array section}}
113   foo();
114 #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'}}
115   foo();
116 #pragma omp parallel reduction(&& : argc) allocate , allocate(, allocate(omp_default , allocate(omp_default_mem_alloc, allocate(omp_default_mem_alloc:, allocate(omp_default_mem_alloc: argc, allocate(omp_default_mem_alloc: argv), allocate(argv) // expected-error {{expected '(' after 'allocate'}} expected-error 2 {{expected expression}} expected-error 2 {{expected ')'}} expected-error {{use of undeclared identifier 'omp_default'}} expected-note 2 {{to match this '('}}
117   foo();
118 #pragma omp parallel reduction(^ : T) // expected-error {{'T' does not refer to a value}}
119   foo();
120 #pragma omp parallel reduction(+ : z, a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 3 {{const-qualified variable cannot be reduction}} expected-error 2 {{'operator+' is a private member of 'S2'}}
121   foo();
122 #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 variable cannot be reduction}}
123   foo();
124 #pragma omp parallel reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
125   foo();
126 #pragma omp parallel reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
127   foo();
128 #pragma omp parallel reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
129   foo();
130 #pragma omp parallel reduction(- : da) // expected-error {{const-qualified variable cannot be reduction}} expected-error {{const-qualified variable cannot be reduction}}
131   foo();
132 #pragma omp parallel reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
133   foo();
134 #pragma omp parallel reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
135   foo();
136 #pragma omp parallel reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
137   foo();
138 #pragma omp parallel reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
139   foo();
140 #pragma omp parallel reduction(+ : o) // expected-error 2 {{no viable overloaded '='}}
141   foo();
142 #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}}
143   foo();
144 #pragma omp parallel private(k)
145 #pragma omp parallel reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
146   foo();
147 #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}}
148   foo();
149 #pragma omp parallel reduction(+ : r) // expected-error 2 {{const-qualified variable cannot be reduction}}
150   foo();
151 #pragma omp parallel shared(i)
152 #pragma omp parallel reduction(min : i)
153 #pragma omp parallel reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
154   foo();
155 #pragma omp parallel
156 #pragma omp for private(fl)
157   for (int i = 0; i < 10; ++i)
158 #pragma omp parallel reduction(+ : fl)
159     foo();
160 #pragma omp parallel
161 #pragma omp for reduction(- : fl)
162   for (int i = 0; i < 10; ++i)
163 #pragma omp parallel reduction(+ : fl)
164     foo();
165 
166   return T();
167 }
168 
169 namespace A {
170 double x;
171 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
172 }
173 namespace B {
174 using A::x;
175 }
176 
177 int main(int argc, char **argv) {
178   const int d = 5;       // expected-note 2 {{'d' defined here}}
179   const int da[5] = {0}; // expected-note {{'da' defined here}}
180   int qa[5] = {0};
181   S4 e(4);
182   S5 g(5);
183   int i, z;
184   int &j = i;                  // expected-note 2 {{'j' defined here}}
185   S3 &p = k;                   // expected-note 2 {{'p' defined here}}
186   const int &r = da[i];        // expected-note {{'r' defined here}}
187   int &q = qa[i];              // expected-note {{'q' defined here}}
188   float fl;
189 #pragma omp parallel reduction // expected-error {{expected '(' after 'reduction'}}
190   foo();
191 #pragma omp parallel reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
192   foo();
193 #pragma omp parallel reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
194   foo();
195 #pragma omp parallel reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
196   foo();
197 #pragma omp parallel reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
198   foo();
199 #pragma omp parallel reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
200   foo();
201 #pragma omp parallel reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
202   foo();
203 #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'}}
204   foo();
205 #pragma omp parallel reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
206   foo();
207 #pragma omp parallel reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name, array element or array section}}
208   foo();
209 #pragma omp parallel reduction(~ : argc) // expected-error {{expected unqualified-id}}
210   foo();
211 #pragma omp parallel reduction(&& : argc, z)
212   foo();
213 #pragma omp parallel reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
214   foo();
215 #pragma omp parallel reduction(+ : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 2 {{const-qualified variable cannot be reduction}} expected-error {{'operator+' is a private member of 'S2'}}
216   foo();
217 #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 variable cannot be reduction}}
218   foo();
219 #pragma omp parallel reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
220   foo();
221 #pragma omp parallel reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
222   foo();
223 #pragma omp parallel reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
224   foo();
225 #pragma omp parallel reduction(- : da) // expected-error {{const-qualified variable cannot be reduction}}
226   foo();
227 #pragma omp parallel reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
228   foo();
229 #pragma omp parallel reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
230   foo();
231 #pragma omp parallel reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
232   foo();
233 #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')}}
234   foo();
235 #pragma omp parallel reduction(+ : h, k, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
236   foo();
237 #pragma omp parallel reduction(+ : o) // expected-error {{no viable overloaded '='}}
238   foo();
239 #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}}
240   foo();
241 #pragma omp parallel private(k)
242 #pragma omp parallel reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
243   foo();
244 #pragma omp parallel reduction(+ : p), reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
245   foo();
246 #pragma omp parallel reduction(+ : r) // expected-error {{const-qualified variable cannot be reduction}}
247   foo();
248 #pragma omp parallel shared(i)
249 #pragma omp parallel reduction(min : i)
250 #pragma omp parallel reduction(max : j) // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
251   foo();
252 #pragma omp parallel
253 #pragma omp for private(fl)
254   for (int i = 0; i < 10; ++i)
255 #pragma omp parallel reduction(+ : fl)
256     foo();
257 #pragma omp parallel
258 #pragma omp for reduction(- : fl)
259   for (int i = 0; i < 10; ++i)
260 #pragma omp parallel reduction(+ : fl)
261     foo();
262   static int m;
263 #pragma omp parallel reduction(+ : m) // OK
264   m++;
265 
266   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}}
267 }
268