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
xxx(int argc)19 void xxx(int argc) {
20 int fp; // expected-note {{initialize the variable 'fp' to silence this warning}}
21 #pragma omp taskloop reduction(+:fp) // expected-warning {{variable 'fp' is uninitialized when used here}}
22 for (int i = 0; i < 10; ++i)
23 ;
24 }
25
foo()26 void foo() {
27 }
28
foobool(int argc)29 bool foobool(int argc) {
30 return argc;
31 }
32
foobar(int & ref)33 void foobar(int &ref) {
34 #pragma omp taskloop reduction(+:ref)
35 for (int i = 0; i < 10; ++i)
36 foo();
37 }
38
39 struct S1; // expected-note {{declared here}} expected-note 4 {{forward declaration of 'S1'}}
40 extern S1 a;
41 class S2 {
42 mutable int a;
operator +(const S2 & arg)43 S2 &operator+(const S2 &arg) { return (*this); } // expected-note 3 {{implicitly declared private here}}
44
45 public:
S2()46 S2() : a(0) {}
S2(S2 & s2)47 S2(S2 &s2) : a(s2.a) {}
48 static float S2s; // expected-note 2 {{static data member is predetermined as shared}}
49 static const float S2sc; // expected-note 2 {{'S2sc' declared here}}
50 };
51 const float S2::S2sc = 0;
52 S2 b; // expected-note 3 {{'b' defined here}}
53 const S2 ba[5]; // expected-note 2 {{'ba' defined here}}
54 class S3 {
55 int a;
56
57 public:
58 int b;
S3()59 S3() : a(0) {}
S3(const S3 & s3)60 S3(const S3 &s3) : a(s3.a) {}
operator +(const S3 & arg1)61 S3 operator+(const S3 &arg1) { return arg1; }
62 };
operator +(const S3 & arg1,const S3 & arg2)63 int operator+(const S3 &arg1, const S3 &arg2) { return 5; }
64 S3 c; // expected-note 3 {{'c' defined here}}
65 const S3 ca[5]; // expected-note 2 {{'ca' defined here}}
66 extern const int f; // expected-note 4 {{'f' declared here}}
67 class S4 {
68 int a;
69 S4(); // expected-note {{implicitly declared private here}}
70 S4(const S4 &s4);
operator +(const S4 & arg)71 S4 &operator+(const S4 &arg) { return (*this); }
72
73 public:
S4(int v)74 S4(int v) : a(v) {}
75 };
operator &=(S4 & arg1,S4 & arg2)76 S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
77 class S5 {
78 int a:32;
S5()79 S5() : a(0) {} // expected-note {{implicitly declared private here}}
S5(const S5 & s5)80 S5(const S5 &s5) : a(s5.a) {}
81 S5 &operator+(const S5 &arg);
82
83 public:
S5(int v)84 S5(int v) : a(v) {}
85 };
86 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}}
87 #if __cplusplus >= 201103L // C++11 or later
88 // expected-note@-2 3 {{candidate function (the implicit move assignment operator) not viable}}
89 #endif
90 int a;
91
92 public:
S6()93 S6() : a(6) {}
operator int()94 operator int() { return 6; }
95 } o;
96
97 struct S7 {
98 int a: 32;
S7S799 S7() {
100 #pragma omp taskloop reduction(+:a) // expected-error {{expected addressable reduction item for the task-based directives}}
101 for (int i = 0; i < 10; ++i)
102 ++a;
103 }
104 };
105
106 S3 h, k;
107 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
108
109 template <class T> // expected-note {{declared here}}
tmain(T argc)110 T tmain(T argc) {
111 const T d = T(); // expected-note 4 {{'d' defined here}}
112 const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
113 T qa[5] = {T()};
114 T i, z;
115 T &j = i; // expected-note 4 {{'j' defined here}}
116 S3 &p = k; // expected-note 2 {{'p' defined here}}
117 const T &r = da[(int)i]; // expected-note 2 {{'r' defined here}}
118 T &q = qa[(int)i]; // expected-note 2 {{'q' defined here}}
119 T fl;
120 #pragma omp taskloop reduction // expected-error {{expected '(' after 'reduction'}}
121 for (int i = 0; i < 10; ++i)
122 foo();
123 #pragma omp taskloop reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp taskloop' are ignored}}
124 for (int i = 0; i < 10; ++i)
125 foo();
126 #pragma omp taskloop reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
127 for (int i = 0; i < 10; ++i)
128 foo();
129 #pragma omp taskloop reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
130 for (int i = 0; i < 10; ++i)
131 foo();
132 #pragma omp taskloop reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
133 for (int i = 0; i < 10; ++i)
134 foo();
135 #pragma omp taskloop reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
136 for (int i = 0; i < 10; ++i)
137 foo();
138 #pragma omp taskloop reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
139 for (int i = 0; i < 10; ++i)
140 foo();
141 #pragma omp taskloop reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
142 for (int i = 0; i < 10; ++i)
143 foo();
144 #pragma omp taskloop reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
145 for (int i = 0; i < 10; ++i)
146 foo();
147 #pragma omp taskloop reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name, array element or array section}}
148 for (int i = 0; i < 10; ++i)
149 foo();
150 #pragma omp taskloop 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'}}
151 for (int i = 0; i < 10; ++i)
152 foo();
153 #pragma omp taskloop 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 '('}}
154 for (int i = 0; i < 10; ++i)
155 foo();
156 #pragma omp taskloop reduction(^ : T) // expected-error {{'T' does not refer to a value}}
157 for (int i = 0; i < 10; ++i)
158 foo();
159 #pragma omp taskloop 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'}}
160 for (int i = 0; i < 10; ++i)
161 foo();
162 #pragma omp taskloop 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}}
163 for (int i = 0; i < 10; ++i)
164 foo();
165 #pragma omp taskloop reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
166 for (int i = 0; i < 10; ++i)
167 foo();
168 #pragma omp taskloop reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
169 for (int i = 0; i < 10; ++i)
170 foo();
171 #pragma omp taskloop reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
172 for (int i = 0; i < 10; ++i)
173 foo();
174 #pragma omp taskloop reduction(- : da) // expected-error {{const-qualified variable cannot be reduction}} expected-error {{const-qualified variable cannot be reduction}}
175 for (int i = 0; i < 10; ++i)
176 foo();
177 #pragma omp taskloop reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
178 for (int i = 0; i < 10; ++i)
179 foo();
180 #pragma omp taskloop reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
181 for (int i = 0; i < 10; ++i)
182 foo();
183 #pragma omp taskloop reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
184 for (int i = 0; i < 10; ++i)
185 foo();
186 #pragma omp taskloop reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
187 for (int i = 0; i < 10; ++i)
188 foo();
189 #pragma omp taskloop reduction(+ : o) // expected-error 2 {{no viable overloaded '='}}
190 for (int i = 0; i < 10; ++i)
191 foo();
192 #pragma omp taskloop private(i), reduction(+ : j), reduction(+ : q) // expected-error 4 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
193 for (int i = 0; i < 10; ++i)
194 foo();
195 #pragma omp parallel private(k)
196 #pragma omp taskloop reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
197 for (int i = 0; i < 10; ++i)
198 foo();
199 #pragma omp taskloop reduction(+ : p), reduction(+ : p) // expected-error 2 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 2 {{previously referenced here}}
200 for (int i = 0; i < 10; ++i)
201 foo();
202 #pragma omp taskloop reduction(+ : r) // expected-error 2 {{const-qualified variable cannot be reduction}}
203 for (int i = 0; i < 10; ++i)
204 foo();
205 #pragma omp parallel shared(i)
206 #pragma omp parallel reduction(min : i)
207 #pragma omp taskloop reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
208 for (int i = 0; i < 10; ++i)
209 foo();
210 #pragma omp parallel private(fl)
211 #pragma omp taskloop reduction(+ : fl) allocate(omp_thread_mem_alloc: fl) // expected-warning 2 {{allocator with the 'thread' trait access has unspecified behavior on 'taskloop' directive}}
212 for (int i = 0; i < 10; ++i)
213 foo();
214 #pragma omp parallel reduction(* : fl)
215 #pragma omp taskloop reduction(+ : fl)
216 for (int i = 0; i < 10; ++i)
217 foo();
218
219 return T();
220 }
221
222 namespace A {
223 double x;
224 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
225 }
226 namespace B {
227 using A::x;
228 }
229
main(int argc,char ** argv)230 int main(int argc, char **argv) {
231 const int d = 5; // expected-note 2 {{'d' defined here}}
232 const int da[5] = {0}; // expected-note {{'da' defined here}}
233 int qa[5] = {0};
234 S4 e(4);
235 S5 g(5);
236 int i, z;
237 int &j = i; // expected-note 2 {{'j' defined here}}
238 S3 &p = k; // expected-note 2 {{'p' defined here}}
239 const int &r = da[i]; // expected-note {{'r' defined here}}
240 int &q = qa[i]; // expected-note {{'q' defined here}}
241 float fl;
242 #pragma omp taskloop reduction // expected-error {{expected '(' after 'reduction'}}
243 for (int i = 0; i < 10; ++i)
244 foo();
245 #pragma omp taskloop reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp taskloop' are ignored}}
246 for (int i = 0; i < 10; ++i)
247 foo();
248 #pragma omp taskloop reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
249 for (int i = 0; i < 10; ++i)
250 foo();
251 #pragma omp taskloop reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
252 for (int i = 0; i < 10; ++i)
253 foo();
254 #pragma omp taskloop reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
255 for (int i = 0; i < 10; ++i)
256 foo();
257 #pragma omp taskloop reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
258 for (int i = 0; i < 10; ++i)
259 foo();
260 #pragma omp taskloop reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
261 for (int i = 0; i < 10; ++i)
262 foo();
263 #pragma omp taskloop reduction(foo : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
264 for (int i = 0; i < 10; ++i)
265 foo();
266 #pragma omp taskloop reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
267 for (int i = 0; i < 10; ++i)
268 foo();
269 #pragma omp taskloop reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name, array element or array section}}
270 for (int i = 0; i < 10; ++i)
271 foo();
272 #pragma omp taskloop reduction(~ : argc) // expected-error {{expected unqualified-id}}
273 for (int i = 0; i < 10; ++i)
274 foo();
275 #pragma omp taskloop reduction(&& : argc, z)
276 for (int i = 0; i < 10; ++i)
277 foo();
278 #pragma omp taskloop reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
279 for (int i = 0; i < 10; ++i)
280 foo();
281 #pragma omp taskloop 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'}}
282 for (int i = 0; i < 10; ++i)
283 foo();
284 #pragma omp taskloop 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}}
285 for (int i = 0; i < 10; ++i)
286 foo();
287 #pragma omp taskloop reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
288 for (int i = 0; i < 10; ++i)
289 foo();
290 #pragma omp taskloop reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
291 for (int i = 0; i < 10; ++i)
292 foo();
293 #pragma omp taskloop reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
294 for (int i = 0; i < 10; ++i)
295 foo();
296 #pragma omp taskloop reduction(- : da) // expected-error {{const-qualified variable cannot be reduction}}
297 for (int i = 0; i < 10; ++i)
298 foo();
299 #pragma omp taskloop reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
300 for (int i = 0; i < 10; ++i)
301 foo();
302 #pragma omp taskloop reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
303 for (int i = 0; i < 10; ++i)
304 foo();
305 #pragma omp taskloop reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
306 for (int i = 0; i < 10; ++i)
307 foo();
308 #pragma omp taskloop 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')}}
309 for (int i = 0; i < 10; ++i)
310 foo();
311 #pragma omp taskloop reduction(+ : h, k, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
312 for (int i = 0; i < 10; ++i)
313 foo();
314 #pragma omp taskloop reduction(+ : o) // expected-error {{no viable overloaded '='}}
315 for (int i = 0; i < 10; ++i)
316 foo();
317 #pragma omp taskloop private(i), reduction(+ : j), reduction(+ : q) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
318 for (int i = 0; i < 10; ++i)
319 foo();
320 #pragma omp parallel private(k)
321 #pragma omp taskloop reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
322 for (int i = 0; i < 10; ++i)
323 foo();
324 #pragma omp taskloop reduction(+ : p), reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
325 for (int i = 0; i < 10; ++i)
326 foo();
327 #pragma omp taskloop reduction(+ : r) // expected-error {{const-qualified variable cannot be reduction}}
328 for (int i = 0; i < 10; ++i)
329 foo();
330 #pragma omp parallel shared(i)
331 #pragma omp parallel reduction(min : i)
332 #pragma omp taskloop reduction(max : j) // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
333 for (int i = 0; i < 10; ++i)
334 foo();
335 #pragma omp parallel private(fl)
336 #pragma omp taskloop reduction(+ : fl)
337 for (int i = 0; i < 10; ++i)
338 foo();
339 #pragma omp parallel reduction(* : fl)
340 #pragma omp taskloop reduction(+ : fl)
341 for (int i = 0; i < 10; ++i)
342 foo();
343 static int m;
344 #pragma omp taskloop reduction(+ : m) // OK
345 for (int i = 0; i < 10; ++i)
346 m++;
347 #pragma omp taskloop nogroup reduction(+ : m) // expected-error {{'reduction' clause cannot be used with 'nogroup' clause}}
348 for (int i = 0; i < 10; ++i)
349 m++;
350
351 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}}
352 }
353