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