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