1 // RUN: %clang_cc1 -fsyntax-only -fopenmp -fopenmp-version=45 -verify=expected,omp45 -triple x86_64-unknown-unknown %s -Wuninitialized
2 // RUN: %clang_cc1 -fsyntax-only -fopenmp -fopenmp-version=50 -verify=expected,omp50 -triple x86_64-unknown-unknown %s -Wuninitialized
3 
4 // RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -fopenmp-version=45 -verify=expected,omp45 -triple x86_64-unknown-unknown %s -Wuninitialized
5 // RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -fopenmp-version=50 -verify=expected,omp50 -triple x86_64-unknown-unknown %s -Wuninitialized
6 
7 void xxx(int argc) {
8   int x; // expected-note {{initialize the variable 'x' to silence this warning}}
9 #pragma omp parallel master taskloop simd
10   for (int i = 0; i < 10; ++i)
11     argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
12 }
13 
14 // expected-error@+1 {{unexpected OpenMP directive '#pragma omp parallel master taskloop simd'}}
15 #pragma omp parallel master taskloop simd
16 
17 // expected-error@+1 {{unexpected OpenMP directive '#pragma omp parallel master taskloop simd'}}
18 #pragma omp parallel master taskloop simd foo
19 
20 void test_no_clause(void) {
21   int i;
22 #pragma omp parallel master taskloop simd
23   for (i = 0; i < 16; ++i)
24     ;
25 
26 // expected-error@+2 {{statement after '#pragma omp parallel master taskloop simd' must be a for loop}}
27 #pragma omp parallel master taskloop simd
28   ++i;
29 }
30 
31 void test_branch_protected_scope(void) {
32   int i = 0;
33 L1:
34   ++i;
35 
36   int x[24];
37 
38 #pragma omp parallel
39 #pragma omp parallel master taskloop simd
40   for (i = 0; i < 16; ++i) {
41     if (i == 5)
42       goto L1; // expected-error {{use of undeclared label 'L1'}}
43     else if (i == 6)
44       return; // expected-error {{cannot return from OpenMP region}}
45     else if (i == 7)
46       goto L2;
47     else if (i == 8) {
48     L2:
49       x[i]++;
50     }
51   }
52 
53   if (x[0] == 0)
54     goto L2; // expected-error {{use of undeclared label 'L2'}}
55   else if (x[1] == 1)
56     goto L1;
57 }
58 
59 void test_invalid_clause(void) {
60   int i, a;
61 // expected-warning@+1 {{extra tokens at the end of '#pragma omp parallel master taskloop simd' are ignored}}
62 #pragma omp parallel master taskloop simd foo bar
63   for (i = 0; i < 16; ++i)
64     ;
65 // expected-error@+1 {{directive '#pragma omp parallel master taskloop simd' cannot contain more than one 'nogroup' clause}}
66 #pragma omp parallel master taskloop simd nogroup nogroup
67   for (i = 0; i < 16; ++i)
68     ;
69 // expected-error@+1 {{unexpected OpenMP clause 'in_reduction' in directive '#pragma omp parallel master taskloop simd'}}
70 #pragma omp parallel master taskloop simd in_reduction(+:a)
71   for (i = 0; i < 16; ++i)
72     ;
73 }
74 
75 void test_non_identifiers(void) {
76   int i, x;
77 
78 #pragma omp parallel
79 // expected-warning@+1 {{extra tokens at the end of '#pragma omp parallel master taskloop simd' are ignored}}
80 #pragma omp parallel master taskloop simd;
81   for (i = 0; i < 16; ++i)
82     ;
83 // expected-warning@+2 {{extra tokens at the end of '#pragma omp parallel master taskloop simd' are ignored}}
84 #pragma omp parallel
85 #pragma omp parallel master taskloop simd linear(x);
86   for (i = 0; i < 16; ++i)
87     ;
88 
89 #pragma omp parallel
90 // expected-warning@+1 {{extra tokens at the end of '#pragma omp parallel master taskloop simd' are ignored}}
91 #pragma omp parallel master taskloop simd private(x);
92   for (i = 0; i < 16; ++i)
93     ;
94 
95 #pragma omp parallel
96 // expected-warning@+1 {{extra tokens at the end of '#pragma omp parallel master taskloop simd' are ignored}}
97 #pragma omp parallel master taskloop simd, private(x);
98   for (i = 0; i < 16; ++i)
99     ;
100 }
101 
102 extern int foo(void);
103 
104 void test_collapse(void) {
105   int i;
106 #pragma omp parallel
107 // expected-error@+1 {{expected '('}}
108 #pragma omp parallel master taskloop simd collapse
109   for (i = 0; i < 16; ++i)
110     ;
111 #pragma omp parallel
112 // expected-error@+1 {{expected expression}} expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
113 #pragma omp parallel master taskloop simd collapse(
114   for (i = 0; i < 16; ++i)
115     ;
116 #pragma omp parallel
117 // expected-error@+1 {{expected expression}}
118 #pragma omp parallel master taskloop simd collapse()
119   for (i = 0; i < 16; ++i)
120     ;
121 #pragma omp parallel
122 // expected-error@+1 {{expected expression}} expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
123 #pragma omp parallel master taskloop simd collapse(,
124   for (i = 0; i < 16; ++i)
125     ;
126 #pragma omp parallel
127 // expected-error@+1 {{expected expression}}  expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
128 #pragma omp parallel master taskloop simd collapse(, )
129   for (i = 0; i < 16; ++i)
130     ;
131 #pragma omp parallel
132 // expected-warning@+2 {{extra tokens at the end of '#pragma omp parallel master taskloop simd' are ignored}}
133 // expected-error@+1 {{expected '('}}
134 #pragma omp parallel master taskloop simd collapse 4)
135   for (i = 0; i < 16; ++i)
136     ;
137 #pragma omp parallel
138 // expected-error@+2 {{expected ')'}}
139 // expected-note@+1 {{to match this '('}} expected-note@+1 {{as specified in 'collapse' clause}}
140 #pragma omp parallel master taskloop simd collapse(4
141   for (i = 0; i < 16; ++i)
142     ; // expected-error {{expected 4 for loops after '#pragma omp parallel master taskloop simd', but found only 1}}
143 #pragma omp parallel
144 // expected-error@+2 {{expected ')'}}
145 // expected-note@+1 {{to match this '('}} expected-note@+1 {{as specified in 'collapse' clause}}
146 #pragma omp parallel master taskloop simd collapse(4,
147   for (i = 0; i < 16; ++i)
148     ; // expected-error {{expected 4 for loops after '#pragma omp parallel master taskloop simd', but found only 1}}
149 #pragma omp parallel
150 // expected-error@+2 {{expected ')'}}
151 // expected-note@+1 {{to match this '('}} expected-note@+1 {{as specified in 'collapse' clause}}
152 #pragma omp parallel master taskloop simd collapse(4, )
153   for (i = 0; i < 16; ++i)
154     ; // expected-error {{expected 4 for loops after '#pragma omp parallel master taskloop simd', but found only 1}}
155 #pragma omp parallel
156 // expected-note@+1 {{as specified in 'collapse' clause}}
157 #pragma omp parallel master taskloop simd collapse(4)
158   for (i = 0; i < 16; ++i)
159     ; // expected-error {{expected 4 for loops after '#pragma omp parallel master taskloop simd', but found only 1}}
160 #pragma omp parallel
161 // expected-error@+2 {{expected ')'}}
162 // expected-note@+1 {{to match this '('}} expected-note@+1 {{as specified in 'collapse' clause}}
163 #pragma omp parallel master taskloop simd collapse(4 4)
164   for (i = 0; i < 16; ++i)
165     ; // expected-error {{expected 4 for loops after '#pragma omp parallel master taskloop simd', but found only 1}}
166 #pragma omp parallel
167 // expected-error@+2 {{expected ')'}}
168 // expected-note@+1 {{to match this '('}} expected-note@+1 {{as specified in 'collapse' clause}}
169 #pragma omp parallel master taskloop simd collapse(4, , 4)
170   for (i = 0; i < 16; ++i)
171     ; // expected-error {{expected 4 for loops after '#pragma omp parallel master taskloop simd', but found only 1}}
172 #pragma omp parallel
173 #pragma omp parallel master taskloop simd collapse(4)
174   for (int i1 = 0; i1 < 16; ++i1)
175     for (int i2 = 0; i2 < 16; ++i2)
176       for (int i3 = 0; i3 < 16; ++i3)
177         for (int i4 = 0; i4 < 16; ++i4)
178           foo();
179 #pragma omp parallel
180 // expected-error@+2 {{expected ')'}}
181 // expected-note@+1 {{to match this '('}} expected-note@+1 {{as specified in 'collapse' clause}}
182 #pragma omp parallel master taskloop simd collapse(4, 8)
183   for (i = 0; i < 16; ++i)
184     ; // expected-error {{expected 4 for loops after '#pragma omp parallel master taskloop simd', but found only 1}}
185 #pragma omp parallel
186 // expected-error@+1 {{integer constant expression}}
187 #pragma omp parallel master taskloop simd collapse(2.5)
188   for (i = 0; i < 16; ++i)
189     ;
190 #pragma omp parallel
191 // expected-error@+1 {{integer constant expression}}
192 #pragma omp parallel master taskloop simd collapse(foo())
193   for (i = 0; i < 16; ++i)
194     ;
195 #pragma omp parallel
196 // expected-error@+1 {{argument to 'collapse' clause must be a strictly positive integer value}}
197 #pragma omp parallel master taskloop simd collapse(-5)
198   for (i = 0; i < 16; ++i)
199     ;
200 #pragma omp parallel
201 // expected-error@+1 {{argument to 'collapse' clause must be a strictly positive integer value}}
202 #pragma omp parallel master taskloop simd collapse(0)
203   for (i = 0; i < 16; ++i)
204     ;
205 #pragma omp parallel
206 // expected-error@+1 {{argument to 'collapse' clause must be a strictly positive integer value}}
207 #pragma omp parallel master taskloop simd collapse(5 - 5)
208   for (i = 0; i < 16; ++i)
209     ;
210 }
211 
212 void test_private(void) {
213   int i;
214 #pragma omp parallel
215 // expected-error@+2 {{expected expression}}
216 // expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
217 #pragma omp parallel master taskloop simd private(
218   for (i = 0; i < 16; ++i)
219     ;
220 #pragma omp parallel
221 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
222 // expected-error@+1 2 {{expected expression}}
223 #pragma omp parallel master taskloop simd private(,
224   for (i = 0; i < 16; ++i)
225     ;
226 #pragma omp parallel
227 // expected-error@+1 2 {{expected expression}}
228 #pragma omp parallel master taskloop simd private(, )
229   for (i = 0; i < 16; ++i)
230     ;
231 #pragma omp parallel
232 // expected-error@+1 {{expected expression}}
233 #pragma omp parallel master taskloop simd private()
234   for (i = 0; i < 16; ++i)
235     ;
236 #pragma omp parallel
237 // expected-error@+1 {{expected expression}}
238 #pragma omp parallel master taskloop simd private(int)
239   for (i = 0; i < 16; ++i)
240     ;
241 #pragma omp parallel
242 // expected-error@+1 {{expected variable name}}
243 #pragma omp parallel master taskloop simd private(0)
244   for (i = 0; i < 16; ++i)
245     ;
246 
247   int x, y, z;
248 #pragma omp parallel
249 #pragma omp parallel master taskloop simd private(x)
250   for (i = 0; i < 16; ++i)
251     ;
252 #pragma omp parallel
253 #pragma omp parallel master taskloop simd private(x, y)
254   for (i = 0; i < 16; ++i)
255     ;
256 #pragma omp parallel
257 #pragma omp parallel master taskloop simd private(x, y, z)
258   for (i = 0; i < 16; ++i) {
259     x = y * i + z;
260   }
261 }
262 
263 void test_lastprivate(void) {
264   int i;
265 #pragma omp parallel
266 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
267 // expected-error@+1 {{expected expression}}
268 #pragma omp parallel master taskloop simd lastprivate(
269   for (i = 0; i < 16; ++i)
270     ;
271 
272 #pragma omp parallel
273 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
274 // expected-error@+1 2 {{expected expression}}
275 #pragma omp parallel master taskloop simd lastprivate(,
276   for (i = 0; i < 16; ++i)
277     ;
278 #pragma omp parallel
279 // expected-error@+1 2 {{expected expression}}
280 #pragma omp parallel master taskloop simd lastprivate(, )
281   for (i = 0; i < 16; ++i)
282     ;
283 #pragma omp parallel
284 // expected-error@+1 {{expected expression}}
285 #pragma omp parallel master taskloop simd lastprivate()
286   for (i = 0; i < 16; ++i)
287     ;
288 #pragma omp parallel
289 // expected-error@+1 {{expected expression}}
290 #pragma omp parallel master taskloop simd lastprivate(int)
291   for (i = 0; i < 16; ++i)
292     ;
293 #pragma omp parallel
294 // expected-error@+1 {{expected variable name}}
295 #pragma omp parallel master taskloop simd lastprivate(0)
296   for (i = 0; i < 16; ++i)
297     ;
298 
299   int x, y, z;
300 #pragma omp parallel
301 #pragma omp parallel master taskloop simd lastprivate(x)
302   for (i = 0; i < 16; ++i)
303     ;
304 #pragma omp parallel
305 #pragma omp parallel master taskloop simd lastprivate(x, y)
306   for (i = 0; i < 16; ++i)
307     ;
308 #pragma omp parallel
309 #pragma omp parallel master taskloop simd lastprivate(x, y, z)
310   for (i = 0; i < 16; ++i)
311     ;
312 }
313 
314 void test_firstprivate(void) {
315   int i;
316 #pragma omp parallel
317 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
318 // expected-error@+1 {{expected expression}}
319 #pragma omp parallel master taskloop simd firstprivate(
320   for (i = 0; i < 16; ++i)
321     ;
322 
323 #pragma omp parallel
324 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
325 // expected-error@+1 2 {{expected expression}}
326 #pragma omp parallel master taskloop simd firstprivate(,
327   for (i = 0; i < 16; ++i)
328     ;
329 #pragma omp parallel
330 // expected-error@+1 2 {{expected expression}}
331 #pragma omp parallel master taskloop simd firstprivate(, )
332   for (i = 0; i < 16; ++i)
333     ;
334 #pragma omp parallel
335 // expected-error@+1 {{expected expression}}
336 #pragma omp parallel master taskloop simd firstprivate()
337   for (i = 0; i < 16; ++i)
338     ;
339 #pragma omp parallel
340 // expected-error@+1 {{expected expression}}
341 #pragma omp parallel master taskloop simd firstprivate(int)
342   for (i = 0; i < 16; ++i)
343     ;
344 #pragma omp parallel
345 // expected-error@+1 {{expected variable name}}
346 #pragma omp parallel master taskloop simd firstprivate(0)
347   for (i = 0; i < 16; ++i)
348     ;
349 
350   int x, y, z;
351 #pragma omp parallel
352 #pragma omp parallel master taskloop simd lastprivate(x) firstprivate(x)
353   for (i = 0; i < 16; ++i)
354     ;
355 #pragma omp parallel
356 #pragma omp parallel master taskloop simd lastprivate(x, y) firstprivate(x, y)
357   for (i = 0; i < 16; ++i)
358     ;
359 #pragma omp parallel
360 #pragma omp parallel master taskloop simd lastprivate(x, y, z) firstprivate(x, y, z)
361   for (i = 0; i < 16; ++i)
362     ;
363 }
364 
365 void test_loop_messages(void) {
366   float a[100], b[100], c[100];
367 #pragma omp parallel
368 // expected-error@+2 {{variable must be of integer or pointer type}}
369 #pragma omp parallel master taskloop simd
370   for (float fi = 0; fi < 10.0; fi++) {
371     c[(int)fi] = a[(int)fi] + b[(int)fi];
372   }
373 #pragma omp parallel
374 // expected-error@+2 {{variable must be of integer or pointer type}}
375 #pragma omp parallel master taskloop simd
376   for (double fi = 0; fi < 10.0; fi++) {
377     c[(int)fi] = a[(int)fi] + b[(int)fi];
378   }
379 
380   // expected-warning@+2 {{OpenMP loop iteration variable cannot have more than 64 bits size and will be narrowed}}
381   #pragma omp parallel master taskloop simd
382   for (__int128 ii = 0; ii < 10; ii++) {
383     c[ii] = a[ii] + b[ii];
384   }
385 }
386 
387 void test_nontemporal(void) {
388   int i;
389 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}} expected-error@+1 {{expected expression}} expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
390 #pragma omp parallel master taskloop simd nontemporal(
391   for (i = 0; i < 16; ++i)
392     ;
393 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}} expected-error@+1 2 {{expected expression}} expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
394 #pragma omp parallel master taskloop simd nontemporal(,
395   for (i = 0; i < 16; ++i)
396     ;
397 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}} expected-error@+1 2 {{expected expression}}
398 #pragma omp parallel master taskloop simd nontemporal(, )
399   for (i = 0; i < 16; ++i)
400     ;
401 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}} expected-error@+1 {{expected expression}}
402 #pragma omp parallel master taskloop simd nontemporal()
403   for (i = 0; i < 16; ++i)
404     ;
405 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}} expected-error@+1 {{expected expression}}
406 #pragma omp parallel master taskloop simd nontemporal(int)
407   for (i = 0; i < 16; ++i)
408     ;
409 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}} omp50-error@+1 {{expected variable name}}
410 #pragma omp parallel master taskloop simd nontemporal(0)
411   for (i = 0; i < 16; ++i)
412     ;
413 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}} expected-error@+1 {{use of undeclared identifier 'x'}}
414 #pragma omp parallel master taskloop simd nontemporal(x)
415   for (i = 0; i < 16; ++i)
416     ;
417 // expected-error@+2 {{use of undeclared identifier 'x'}}
418 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}} expected-error@+1 {{use of undeclared identifier 'y'}}
419 #pragma omp parallel master taskloop simd nontemporal(x, y)
420   for (i = 0; i < 16; ++i)
421     ;
422 // expected-error@+3 {{use of undeclared identifier 'x'}}
423 // expected-error@+2 {{use of undeclared identifier 'y'}}
424 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}} expected-error@+1 {{use of undeclared identifier 'z'}}
425 #pragma omp parallel master taskloop simd nontemporal(x, y, z)
426   for (i = 0; i < 16; ++i)
427     ;
428 
429   int x, y;
430 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}} expected-error@+1 {{expected ',' or ')' in 'nontemporal' clause}} expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
431 #pragma omp parallel master taskloop simd nontemporal(x :)
432   for (i = 0; i < 16; ++i)
433     ;
434 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}} expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}} expected-error@+1 {{expected ',' or ')' in 'nontemporal' clause}}
435 #pragma omp parallel master taskloop simd nontemporal(x :, )
436   for (i = 0; i < 16; ++i)
437     ;
438 
439 // omp50-note@+2 {{defined as nontemporal}}
440 // omp45-error@+1 2 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}} omp50-error@+1 {{a variable cannot appear in more than one nontemporal clause}}
441 #pragma omp parallel master taskloop simd nontemporal(x) nontemporal(x)
442   for (i = 0; i < 16; ++i)
443     ;
444 
445 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}}
446 #pragma omp parallel master taskloop simd private(x) nontemporal(x)
447   for (i = 0; i < 16; ++i)
448     ;
449 
450 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}}
451 #pragma omp parallel master taskloop simd nontemporal(x) private(x)
452   for (i = 0; i < 16; ++i)
453     ;
454 
455 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}} expected-note@+1 {{to match this '('}} expected-error@+1 {{expected ',' or ')' in 'nontemporal' clause}} expected-error@+1 {{expected ')'}}
456 #pragma omp parallel master taskloop simd nontemporal(x, y : 0)
457   for (i = 0; i < 16; ++i)
458     ;
459 
460 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}}
461 #pragma omp parallel master taskloop simd nontemporal(x) lastprivate(x)
462   for (i = 0; i < 16; ++i)
463     ;
464 
465 // omp45-error@+1 {{unexpected OpenMP clause 'nontemporal' in directive '#pragma omp parallel master taskloop simd'}}
466 #pragma omp parallel master taskloop simd lastprivate(x) nontemporal(x)
467   for (i = 0; i < 16; ++i)
468     ;
469 }
470 
471