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