1 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp -fopenmp-version=45 %s -Wuninitialized
2 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp -fopenmp-version=45 -std=c++98 %s -Wuninitialized
3 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp -fopenmp-version=45 -std=c++11 %s -Wuninitialized
4 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp -fopenmp-version=50 %s -Wuninitialized
5 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp -fopenmp-version=50 -std=c++98 %s -Wuninitialized
6 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp -fopenmp-version=50 -std=c++11 %s -Wuninitialized
7 
8 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-simd -fopenmp-version=45 %s -Wuninitialized
9 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-simd -fopenmp-version=45 -std=c++98 %s -Wuninitialized
10 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-simd -fopenmp-version=45 -std=c++11 %s -Wuninitialized
11 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-simd -fopenmp-version=50 %s -Wuninitialized
12 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-simd -fopenmp-version=50 -std=c++98 %s -Wuninitialized
13 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-simd -fopenmp-version=50 -std=c++11 %s -Wuninitialized
14 
15 typedef void **omp_allocator_handle_t;
16 extern const omp_allocator_handle_t omp_null_allocator;
17 extern const omp_allocator_handle_t omp_default_mem_alloc;
18 extern const omp_allocator_handle_t omp_large_cap_mem_alloc;
19 extern const omp_allocator_handle_t omp_const_mem_alloc;
20 extern const omp_allocator_handle_t omp_high_bw_mem_alloc;
21 extern const omp_allocator_handle_t omp_low_lat_mem_alloc;
22 extern const omp_allocator_handle_t omp_cgroup_mem_alloc;
23 extern const omp_allocator_handle_t omp_pteam_mem_alloc;
24 extern const omp_allocator_handle_t omp_thread_mem_alloc;
25 
xxx(int argc)26 void xxx(int argc) {
27   int fp; // expected-note {{initialize the variable 'fp' to silence this warning}}
28 #pragma omp target simd reduction(+:fp) // expected-warning {{variable 'fp' is uninitialized when used here}}
29   for (int i = 0; i < 10; ++i)
30     ;
31 }
32 
foo()33 void foo() {
34 }
35 
foobool(int argc)36 bool foobool(int argc) {
37   return argc;
38 }
39 
foobar(int & ref)40 void foobar(int &ref) {
41 #pragma omp target simd allocate(omp_thread_mem_alloc: ref) reduction(+:ref) uses_allocators(omp_thread_mem_alloc) // expected-warning {{allocator with the 'thread' trait access has unspecified behavior on 'target simd' directive}} omp45-error {{unexpected OpenMP clause 'uses_allocators' in directive '#pragma omp target simd'}}
42   for (int i = 0; i < 10; ++i)
43     foo();
44 }
45 
46 struct S1; // expected-note {{declared here}} expected-note 4 {{forward declaration of 'S1'}}
47 extern S1 a;
48 class S2 {
49   mutable int a;
operator +(const S2 & arg)50   S2 &operator+(const S2 &arg) { return (*this); } // expected-note 3 {{implicitly declared private here}}
51 
52 public:
S2()53   S2() : a(0) {}
S2(S2 & s2)54   S2(S2 &s2) : a(s2.a) {}
55   static float S2s; // expected-note 2 {{static data member is predetermined as shared}}
56   static const float S2sc; // expected-note 2 {{'S2sc' declared here}}
57 };
58 const float S2::S2sc = 0;
59 S2 b;                     // expected-note 3 {{'b' defined here}}
60 const S2 ba[5];           // expected-note 2 {{'ba' defined here}}
61 class S3 {
62   int a;
63 
64 public:
65   int b;
S3()66   S3() : a(0) {}
S3(const S3 & s3)67   S3(const S3 &s3) : a(s3.a) {}
operator +(const S3 & arg1)68   S3 operator+(const S3 &arg1) { return arg1; }
69 };
operator +(const S3 & arg1,const S3 & arg2)70 int operator+(const S3 &arg1, const S3 &arg2) { return 5; }
71 S3 c;               // expected-note 3 {{'c' defined here}}
72 const S3 ca[5];     // expected-note 2 {{'ca' defined here}}
73 extern const int f; // expected-note 4 {{'f' declared here}}
74 class S4 {
75   int a;
76   S4(); // expected-note {{implicitly declared private here}}
77   S4(const S4 &s4);
operator +(const S4 & arg)78   S4 &operator+(const S4 &arg) { return (*this); }
79 
80 public:
S4(int v)81   S4(int v) : a(v) {}
82 };
operator &=(S4 & arg1,S4 & arg2)83 S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
84 class S5 {
85   int a;
S5()86   S5() : a(0) {} // expected-note {{implicitly declared private here}}
S5(const S5 & s5)87   S5(const S5 &s5) : a(s5.a) {}
88   S5 &operator+(const S5 &arg);
89 
90 public:
S5(int v)91   S5(int v) : a(v) {}
92 };
93 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}}
94 #if __cplusplus >= 201103L // C++11 or later
95 // expected-note@-2 3 {{candidate function (the implicit move assignment operator) not viable}}
96 #endif
97   int a;
98 
99 public:
S6()100   S6() : a(6) {}
operator int()101   operator int() { return 6; }
102 } o;
103 
104 S3 h, k;
105 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
106 
107 template <class T>       // expected-note {{declared here}}
tmain(T argc)108 T tmain(T argc) {
109   const T d = T();       // expected-note 4 {{'d' defined here}}
110   const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
111   T qa[5] = {T()};
112   T i, z;
113   T &j = i;                        // expected-note 4 {{'j' defined here}}
114   S3 &p = k;                       // expected-note 2 {{'p' defined here}}
115   const T &r = da[(int)i];         // expected-note 2 {{'r' defined here}}
116   T &q = qa[(int)i];               // expected-note 2 {{'q' defined here}}
117   T fl;
118 #pragma omp target simd reduction // expected-error {{expected '(' after 'reduction'}}
119   for (int i = 0; i < 10; ++i)
120     foo();
121 #pragma omp target simd reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp target simd' are ignored}}
122   for (int i = 0; i < 10; ++i)
123     foo();
124 #pragma omp target simd reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
125   for (int i = 0; i < 10; ++i)
126     foo();
127 #pragma omp target simd reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
128   for (int i = 0; i < 10; ++i)
129     foo();
130 #pragma omp target simd reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
131   for (int i = 0; i < 10; ++i)
132     foo();
133 #pragma omp target simd reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
134   for (int i = 0; i < 10; ++i)
135     foo();
136 #pragma omp target simd reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
137   for (int i = 0; i < 10; ++i)
138     foo();
139 #pragma omp target simd reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
140   for (int i = 0; i < 10; ++i)
141     foo();
142 #pragma omp target simd reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
143   for (int i = 0; i < 10; ++i)
144     foo();
145 #pragma omp target simd reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name, array element or array section}}
146   for (int i = 0; i < 10; ++i)
147     foo();
148 #pragma omp target simd 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'}}
149   for (int i = 0; i < 10; ++i)
150     foo();
151 #pragma omp target simd 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 '('}}
152   for (int i = 0; i < 10; ++i)
153     foo();
154 #pragma omp target simd reduction(^ : T) // expected-error {{'T' does not refer to a value}}
155   for (int i = 0; i < 10; ++i)
156     foo();
157 #pragma omp target simd 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'}}
158   for (int i = 0; i < 10; ++i)
159     foo();
160 #pragma omp target simd 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}}
161   for (int i = 0; i < 10; ++i)
162     foo();
163 #pragma omp target simd reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
164   for (int i = 0; i < 10; ++i)
165     foo();
166 #pragma omp target simd reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
167   for (int i = 0; i < 10; ++i)
168     foo();
169 #pragma omp target simd reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
170   for (int i = 0; i < 10; ++i)
171     foo();
172 #pragma omp target simd reduction(- : da) // expected-error {{const-qualified variable cannot be reduction}} expected-error {{const-qualified variable cannot be reduction}}
173   for (int i = 0; i < 10; ++i)
174     foo();
175 #pragma omp target simd reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
176   for (int i = 0; i < 10; ++i)
177     foo();
178 #pragma omp target simd reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
179   for (int i = 0; i < 10; ++i)
180     foo();
181 #pragma omp target simd reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
182   for (int i = 0; i < 10; ++i)
183     foo();
184 #pragma omp target simd reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
185   for (int i = 0; i < 10; ++i)
186     foo();
187 #pragma omp target simd reduction(+ : o) // expected-error 2 {{no viable overloaded '='}}
188   for (int i = 0; i < 10; ++i)
189     foo();
190 #pragma omp target simd private(i), reduction(+ : j), reduction(+ : q) // expected-error 4 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
191   for (int i = 0; i < 10; ++i)
192     foo();
193 #pragma omp parallel private(k)
194 #pragma omp target simd reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
195   for (int i = 0; i < 10; ++i)
196     foo();
197 #pragma omp target simd reduction(+ : p), reduction(+ : p) // expected-error 2 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 2 {{previously referenced here}}
198   for (int i = 0; i < 10; ++i)
199     foo();
200 #pragma omp target simd reduction(+ : r) // expected-error 2 {{const-qualified variable cannot be reduction}}
201   for (int i = 0; i < 10; ++i)
202     foo();
203 #pragma omp parallel shared(i)
204 #pragma omp parallel reduction(min : i)
205 #pragma omp target simd reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
206   for (int i = 0; i < 10; ++i)
207     foo();
208 #pragma omp parallel private(fl)
209 #pragma omp target simd reduction(+ : fl)
210   for (int i = 0; i < 10; ++i)
211     foo();
212 #pragma omp parallel reduction(* : fl)
213 #pragma omp target simd reduction(+ : fl)
214   for (int i = 0; i < 10; ++i)
215     foo();
216 
217   return T();
218 }
219 
220 namespace A {
221 double x;
222 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
223 }
224 namespace B {
225 using A::x;
226 }
227 
main(int argc,char ** argv)228 int main(int argc, char **argv) {
229   const int d = 5;       // expected-note 2 {{'d' defined here}}
230   const int da[5] = {0}; // expected-note {{'da' defined here}}
231   int qa[5] = {0};
232   S4 e(4);
233   S5 g(5);
234   int i, z;
235   int &j = i;                      // expected-note 2 {{'j' defined here}}
236   S3 &p = k;                       // expected-note 2 {{'p' defined here}}
237   const int &r = da[i];            // expected-note {{'r' defined here}}
238   int &q = qa[i];                  // expected-note {{'q' defined here}}
239   float fl;
240 #pragma omp target simd reduction // expected-error {{expected '(' after 'reduction'}}
241   for (int i = 0; i < 10; ++i)
242     foo();
243 #pragma omp target simd reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp target simd' are ignored}}
244   for (int i = 0; i < 10; ++i)
245     foo();
246 #pragma omp target simd reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
247   for (int i = 0; i < 10; ++i)
248     foo();
249 #pragma omp target simd reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
250   for (int i = 0; i < 10; ++i)
251     foo();
252 #pragma omp target simd reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
253   for (int i = 0; i < 10; ++i)
254     foo();
255 #pragma omp target simd reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
256   for (int i = 0; i < 10; ++i)
257     foo();
258 #pragma omp target simd reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
259   for (int i = 0; i < 10; ++i)
260     foo();
261 #pragma omp target simd reduction(foo : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
262   for (int i = 0; i < 10; ++i)
263     foo();
264 #pragma omp target simd reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
265   for (int i = 0; i < 10; ++i)
266     foo();
267 #pragma omp target simd reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name, array element or array section}}
268   for (int i = 0; i < 10; ++i)
269     foo();
270 #pragma omp target simd reduction(~ : argc) // expected-error {{expected unqualified-id}}
271   for (int i = 0; i < 10; ++i)
272     foo();
273 #pragma omp target simd reduction(&& : argc, z)
274   for (int i = 0; i < 10; ++i)
275     foo();
276 #pragma omp target simd reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
277   for (int i = 0; i < 10; ++i)
278     foo();
279 #pragma omp target simd 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'}}
280   for (int i = 0; i < 10; ++i)
281     foo();
282 #pragma omp target simd 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}}
283   for (int i = 0; i < 10; ++i)
284     foo();
285 #pragma omp target simd reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
286   for (int i = 0; i < 10; ++i)
287     foo();
288 #pragma omp target simd reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
289   for (int i = 0; i < 10; ++i)
290     foo();
291 #pragma omp target simd reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
292   for (int i = 0; i < 10; ++i)
293     foo();
294 #pragma omp target simd reduction(- : da) // expected-error {{const-qualified variable cannot be reduction}}
295   for (int i = 0; i < 10; ++i)
296     foo();
297 #pragma omp target simd reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
298   for (int i = 0; i < 10; ++i)
299     foo();
300 #pragma omp target simd reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
301   for (int i = 0; i < 10; ++i)
302     foo();
303 #pragma omp target simd reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
304   for (int i = 0; i < 10; ++i)
305     foo();
306 #pragma omp target simd reduction(& : e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{invalid 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')}}
307   for (int i = 0; i < 10; ++i)
308     foo();
309 #pragma omp target simd reduction(+ : h, k, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
310   for (int i = 0; i < 10; ++i)
311     foo();
312 #pragma omp target simd reduction(+ : o) // expected-error {{no viable overloaded '='}}
313   for (int i = 0; i < 10; ++i)
314     foo();
315 #pragma omp target simd private(i), reduction(+ : j), reduction(+ : q) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
316   for (int i = 0; i < 10; ++i)
317     foo();
318 #pragma omp parallel private(k)
319 #pragma omp target simd reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
320   for (int i = 0; i < 10; ++i)
321     foo();
322 #pragma omp target simd reduction(+ : p), reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
323   for (int i = 0; i < 10; ++i)
324     foo();
325 #pragma omp target simd reduction(+ : r) // expected-error {{const-qualified variable cannot be reduction}}
326   for (int i = 0; i < 10; ++i)
327     foo();
328 #pragma omp parallel shared(i)
329 #pragma omp parallel reduction(min : i)
330 #pragma omp target simd reduction(max : j) // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
331   for (int i = 0; i < 10; ++i)
332     foo();
333 #pragma omp parallel private(fl)
334 #pragma omp target simd reduction(+ : fl)
335   for (int i = 0; i < 10; ++i)
336     foo();
337 #pragma omp parallel reduction(* : fl)
338 #pragma omp target simd reduction(+ : fl)
339   for (int i = 0; i < 10; ++i)
340     foo();
341   static int m;
342 #pragma omp target simd reduction(+ : m) // OK
343   for (int i = 0; i < 10; ++i)
344     m++;
345 #pragma omp target simd reduction(task, + : m) // omp45-error 2 {{expected expression}} omp45-warning {{missing ':' after reduction identifier - ignoring}} omp50-error {{'reduction' clause with 'task' modifier allowed only on non-simd parallel or worksharing constructs}}
346   for (int i = 0; i < 10; ++i)
347     m++;
348 
349   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}}
350 }
351