1 // RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized
2 
3 // RUN: %clang_cc1 -verify -fopenmp-simd %s -Wuninitialized
4 
foo()5 void foo() {
6 }
7 
foobool(int argc)8 bool foobool(int argc) {
9   return argc;
10 }
11 
xxx(int argc)12 void xxx(int argc) {
13   int fp; // expected-note {{initialize the variable 'fp' to silence this warning}}
14 #pragma omp distribute parallel for firstprivate(fp) // expected-warning {{variable 'fp' is uninitialized when used here}}
15   for (int i = 0; i < 10; ++i)
16     ;
17 }
18 
19 extern int omp_default_mem_alloc;
20 
21 struct S1; // expected-note 2 {{declared here}} expected-note 2 {{forward declaration of 'S1'}}
22 extern S1 a;
23 class S2 {
24   mutable int a;
25 
26 public:
S2()27   S2() : a(0) {}
S2(const S2 & s2)28   S2(const S2 &s2) : a(s2.a) {}
29   static float S2s;
30   static const float S2sc;
31 };
32 const float S2::S2sc = 0;
33 const S2 b;
34 const S2 ba[5];
35 class S3 {
36   int a;
37   S3 &operator=(const S3 &s3);
38 
39 public:
S3()40   S3() : a(0) {}
S3(const S3 & s3)41   S3(const S3 &s3) : a(s3.a) {}
42 };
43 const S3 c;
44 const S3 ca[5];
45 extern const int f;
46 class S4 {
47   int a;
48   S4();
49   S4(const S4 &s4); // expected-note 2 {{implicitly declared private here}}
50 
51 public:
S4(int v)52   S4(int v) : a(v) {}
53 };
54 class S5 {
55   int a;
S5(const S5 & s5)56   S5(const S5 &s5) : a(s5.a) {} // expected-note 2 {{implicitly declared private here}}
57 
58 public:
S5()59   S5() : a(0) {}
S5(int v)60   S5(int v) : a(v) {}
61 };
62 class S6 {
63   int a;
S6()64   S6() : a(0) {} // expected-note {{implicitly declared private here}}
65 
66 public:
S6(const S6 & s6)67   S6(const S6 &s6) : a(s6.a) {}
S6(int v)68   S6(int v) : a(v) {}
69 };
70 
71 S3 h;
72 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
73 
74 template <class I, class C>
foomain(int argc,char ** argv)75 int foomain(int argc, char **argv) {
76   I e(4);
77   C g(5);
78   int i, k;
79   int &j = i;
80 #pragma omp target
81 #pragma omp teams
82 #pragma omp distribute parallel for firstprivate // expected-error {{expected '(' after 'firstprivate'}}
83   for (int k = 0; k < argc; ++k)
84     ++k;
85 #pragma omp target
86 #pragma omp teams
87 #pragma omp distribute parallel for firstprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
88   for (int k = 0; k < argc; ++k)
89     ++k;
90 #pragma omp target
91 #pragma omp teams
92 #pragma omp distribute parallel for firstprivate() // expected-error {{expected expression}}
93   for (int k = 0; k < argc; ++k)
94     ++k;
95 #pragma omp target
96 #pragma omp teams
97 #pragma omp distribute parallel for firstprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
98   for (int k = 0; k < argc; ++k)
99     ++k;
100 #pragma omp target
101 #pragma omp teams
102 #pragma omp distribute parallel for firstprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
103   for (int k = 0; k < argc; ++k)
104     ++k;
105 #pragma omp target
106 #pragma omp teams
107 #pragma omp distribute parallel for firstprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
108   for (int k = 0; k < argc; ++k)
109     ++k;
110 #pragma omp target
111 #pragma omp teams
112 #pragma omp distribute parallel for firstprivate(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 '('}}
113   for (int k = 0; k < argc; ++k)
114     ++k;
115 #pragma omp target
116 #pragma omp teams
117 #pragma omp distribute parallel for firstprivate(S1) // expected-error {{'S1' does not refer to a value}}
118   for (int k = 0; k < argc; ++k)
119     ++k;
120 #pragma omp target
121 #pragma omp teams
122 #pragma omp distribute parallel for firstprivate(a, b) // expected-error {{firstprivate variable with incomplete type 'S1'}} expected-warning {{Type 'const S2' is not trivially copyable and not guaranteed to be mapped correctly}}
123   for (int k = 0; k < argc; ++k)
124     ++k;
125 #pragma omp target
126 #pragma omp teams
127 #pragma omp distribute parallel for firstprivate(argv[1]) // expected-error {{expected variable name}}
128   for (int k = 0; k < argc; ++k)
129     ++k;
130 #pragma omp target
131 #pragma omp teams
132 #pragma omp distribute parallel for firstprivate(e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{calling a private constructor of class 'S5'}} expected-warning {{Type 'S4' is not trivially copyable and not guaranteed to be mapped correctly}} expected-warning {{Type 'S5' is not trivially copyable and not guaranteed to be mapped correctly}}
133   for (int k = 0; k < argc; ++k)
134     ++k;
135 #pragma omp target
136 #pragma omp teams
137 #pragma omp distribute parallel for firstprivate(k, h) // expected-error {{threadprivate or thread local variable cannot be firstprivate}}
138   for (int k = 0; k < argc; ++k)
139     ++k;
140 #pragma omp parallel
141   {
142     int v = 0;
143     int i;
144 #pragma omp target
145 #pragma omp teams
146 #pragma omp distribute parallel for firstprivate(i)
147     for (int k = 0; k < argc; ++k) {
148       i = k;
149       v += i;
150     }
151   }
152 #pragma omp parallel shared(i)
153 #pragma omp parallel private(i)
154 #pragma omp target
155 #pragma omp teams
156 #pragma omp distribute parallel for firstprivate(j)
157   for (int k = 0; k < argc; ++k)
158     ++k;
159 #pragma omp target
160 #pragma omp teams
161 #pragma omp distribute parallel for firstprivate(i)
162   for (int k = 0; k < argc; ++k)
163     ++k;
164 // expected-error@+3 {{lastprivate variable cannot be firstprivate}} expected-note@+3 {{defined as lastprivate}}
165 #pragma omp target
166 #pragma omp teams
167 #pragma omp distribute parallel for lastprivate(g) firstprivate(g)
168   for (i = 0; i < argc; ++i)
169     foo();
170 #pragma omp parallel private(i)
171 #pragma omp target
172 #pragma omp teams
173 #pragma omp distribute parallel for firstprivate(i) // expected-note 2 {{defined as firstprivate}}
174   for (i = 0; i < argc; ++i) // expected-error 2 {{loop iteration variable in the associated loop of 'omp distribute parallel for' directive may not be firstprivate, predetermined as private}}
175     foo();
176 #pragma omp parallel reduction(+ : i)
177 #pragma omp target
178 #pragma omp teams
179 #pragma omp distribute parallel for firstprivate(i) // expected-note 2 {{defined as firstprivate}}
180   for (i = 0; i < argc; ++i) // expected-error 2 {{loop iteration variable in the associated loop of 'omp distribute parallel for' directive may not be firstprivate, predetermined as private}}
181     foo();
182   return 0;
183 }
184 
185 namespace A {
186 double x;
187 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
188 }
189 namespace B {
190 using A::x;
191 }
192 
main(int argc,char ** argv)193 int main(int argc, char **argv) {
194   const int d = 5;
195   const int da[5] = {0};
196   S4 e(4);
197   S5 g(5);
198   S3 m;
199   S6 n(2);
200   int i, k;
201   int &j = i;
202 #pragma omp target
203 #pragma omp teams
204 #pragma omp distribute parallel for firstprivate // expected-error {{expected '(' after 'firstprivate'}}
205   for (i = 0; i < argc; ++i)
206     foo();
207 #pragma omp target
208 #pragma omp teams
209 #pragma omp distribute parallel for firstprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
210   for (i = 0; i < argc; ++i)
211     foo();
212 #pragma omp target
213 #pragma omp teams
214 #pragma omp distribute parallel for firstprivate() // expected-error {{expected expression}}
215   for (i = 0; i < argc; ++i)
216     foo();
217 #pragma omp target
218 #pragma omp teams
219 #pragma omp distribute parallel for firstprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
220   for (i = 0; i < argc; ++i)
221     foo();
222 #pragma omp target
223 #pragma omp teams
224 #pragma omp distribute parallel for firstprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
225   for (i = 0; i < argc; ++i)
226     foo();
227 #pragma omp target
228 #pragma omp teams
229 #pragma omp distribute parallel for firstprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
230   for (i = 0; i < argc; ++i)
231     foo();
232 #pragma omp target
233 #pragma omp teams
234 #pragma omp distribute parallel for firstprivate(argc)
235   for (i = 0; i < argc; ++i)
236     foo();
237 #pragma omp target
238 #pragma omp teams
239 #pragma omp distribute parallel for firstprivate(S1) // expected-error {{'S1' does not refer to a value}}
240   for (i = 0; i < argc; ++i)
241     foo();
242 #pragma omp target
243 #pragma omp teams
244 #pragma omp distribute parallel for firstprivate(a, b, c, d, f) // expected-error {{firstprivate variable with incomplete type 'S1'}} expected-error {{incomplete type 'S1' where a complete type is required}} expected-warning {{Type 'const S2' is not trivially copyable and not guaranteed to be mapped correctly}} expected-warning {{Type 'const S3' is not trivially copyable and not guaranteed to be mapped correctly}}
245   for (i = 0; i < argc; ++i)
246     foo();
247 #pragma omp target
248 #pragma omp teams
249 #pragma omp distribute parallel for firstprivate(argv[1]) // expected-error {{expected variable name}}
250   for (i = 0; i < argc; ++i)
251     foo();
252 #pragma omp target
253 #pragma omp teams
254 #pragma omp distribute parallel for firstprivate(2 * 2) // expected-error {{expected variable name}}
255   for (i = 0; i < argc; ++i)
256     foo();
257 #pragma omp target
258 #pragma omp teams
259 #pragma omp distribute parallel for firstprivate(ba) // expected-warning {{Type 'const S2 [5]' is not trivially copyable and not guaranteed to be mapped correctly}}
260   for (i = 0; i < argc; ++i)
261     foo();
262 #pragma omp target
263 #pragma omp teams
264 #pragma omp distribute parallel for firstprivate(ca) // expected-warning {{Type 'const S3 [5]' is not trivially copyable and not guaranteed to be mapped correctly}}
265   for (i = 0; i < argc; ++i)
266     foo();
267 #pragma omp target
268 #pragma omp teams
269 #pragma omp distribute parallel for firstprivate(da) // OK
270   for (i = 0; i < argc; ++i)
271     foo();
272   int xa;
273 #pragma omp target
274 #pragma omp teams
275 #pragma omp distribute parallel for firstprivate(xa) // OK
276   for (i = 0; i < argc; ++i)
277     foo();
278 #pragma omp target
279 #pragma omp teams
280 #pragma omp distribute parallel for firstprivate(S2::S2s) // OK
281   for (i = 0; i < argc; ++i)
282     foo();
283 #pragma omp target
284 #pragma omp teams
285 #pragma omp distribute parallel for firstprivate(S2::S2sc) // OK
286   for (i = 0; i < argc; ++i)
287     foo();
288 #pragma omp target
289 #pragma omp teams
290 #pragma omp distribute parallel for safelen(5) // expected-error {{unexpected OpenMP clause 'safelen' in directive '#pragma omp distribute parallel for'}}
291   for (i = 0; i < argc; ++i)
292     foo();
293 #pragma omp target
294 #pragma omp teams
295 #pragma omp distribute parallel for firstprivate(e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{calling a private constructor of class 'S5'}} expected-warning {{Type 'S4' is not trivially copyable and not guaranteed to be mapped correctly}} expected-warning {{Type 'S5' is not trivially copyable and not guaranteed to be mapped correctly}}
296   for (i = 0; i < argc; ++i)
297     foo();
298 #pragma omp target
299 #pragma omp teams
300 #pragma omp distribute parallel for firstprivate(m) // expected-warning {{Type 'S3' is not trivially copyable and not guaranteed to be mapped correctly}}
301   for (i = 0; i < argc; ++i)
302     foo();
303 #pragma omp target
304 #pragma omp teams
305 #pragma omp distribute parallel for firstprivate(k, h, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be firstprivate}}
306   for (i = 0; i < argc; ++i)
307     foo();
308 #pragma omp target
309 #pragma omp teams
310 #pragma omp distribute parallel for private(xa), firstprivate(xa) // expected-error {{private variable cannot be firstprivate}} expected-note {{defined as private}}
311   for (i = 0; i < argc; ++i)
312     foo();
313 #pragma omp target
314 #pragma omp teams
315 #pragma omp distribute parallel for firstprivate(i) // expected-note {{defined as firstprivate}}
316   for (i = 0; i < argc; ++i)    // expected-error {{loop iteration variable in the associated loop of 'omp distribute parallel for' directive may not be firstprivate, predetermined as private}}
317     foo();
318 #pragma omp parallel shared(xa)
319 #pragma omp target
320 #pragma omp teams
321 #pragma omp distribute parallel for firstprivate(xa) // OK: may be firstprivate
322   for (i = 0; i < argc; ++i)
323     foo();
324 #pragma omp target
325 #pragma omp teams
326 #pragma omp distribute parallel for firstprivate(j)
327   for (i = 0; i < argc; ++i)
328     foo();
329 // expected-error@+3 {{lastprivate variable cannot be firstprivate}} expected-note@+3 {{defined as lastprivate}}
330 #pragma omp target
331 #pragma omp teams
332 #pragma omp distribute parallel for lastprivate(g) firstprivate(g) // expected-warning {{Type 'S5' is not trivially copyable and not guaranteed to be mapped correctly}}
333   for (i = 0; i < argc; ++i)
334     foo();
335 // expected-error@+3 {{lastprivate variable cannot be firstprivate}} expected-note@+3 {{defined as lastprivate}}
336 #pragma omp target
337 #pragma omp teams
338 #pragma omp distribute parallel for lastprivate(n) firstprivate(n) // expected-error {{calling a private constructor of class 'S6'}} expected-warning {{Type 'S6' is not trivially copyable and not guaranteed to be mapped correctly}}
339   for (i = 0; i < argc; ++i)
340     foo();
341 #pragma omp parallel
342   {
343     int v = 0;
344     int i;
345 #pragma omp target
346 #pragma omp teams
347 #pragma omp distribute parallel for firstprivate(i)
348     for (int k = 0; k < argc; ++k) {
349       i = k;
350       v += i;
351     }
352   }
353 #pragma omp parallel private(i)
354 #pragma omp target
355 #pragma omp teams
356 #pragma omp distribute parallel for firstprivate(i) // expected-note {{defined as firstprivate}}
357   for (i = 0; i < argc; ++i) // expected-error {{loop iteration variable in the associated loop of 'omp distribute parallel for' directive may not be firstprivate, predetermined as private}}
358     foo();
359 #pragma omp parallel reduction(+ : i)
360 #pragma omp target
361 #pragma omp teams
362 #pragma omp distribute parallel for firstprivate(i) // expected-note {{defined as firstprivate}}
363   for (i = 0; i < argc; ++i) // expected-error {{loop iteration variable in the associated loop of 'omp distribute parallel for' directive may not be firstprivate, predetermined as private}}
364     foo();
365   static int si;
366 #pragma omp target
367 #pragma omp teams
368 #pragma omp distribute parallel for firstprivate(si) // OK
369   for (i = 0; i < argc; ++i)
370     si = i + 1;
371 
372   return foomain<S4, S5>(argc, argv); // expected-note {{in instantiation of function template specialization 'foomain<S4, S5>' requested here}}
373 }
374