1 // RUN: %clang_cc1 -fsyntax-only -fopenmp -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify %s
9 S(const S &s) : a(s.a) {}
13 // expected-note@+1 {{defined as threadprivate or thread local}}
14 #pragma omp threadprivate(sii)
17 int test_iteration_spaces() {
19 float a[N], b[N], c[N];
23 #pragma omp target simd
24 for (int i = 0; i < 10; i += 1) {
27 #pragma omp target simd
28 for (char i = 0; i < 10; i++) {
31 #pragma omp target simd
32 for (char i = 0; i < 10; i += '\1') {
35 #pragma omp target simd
36 for (long long i = 0; i < 10; i++) {
39 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}}
40 #pragma omp target simd
41 for (long long i = 0; i < 10; i += 1.5) {
44 #pragma omp target simd
45 for (long long i = 0; i < 'z'; i += 1u) {
48 // expected-error@+2 {{variable must be of integer or random access iterator type}}
49 #pragma omp target simd
50 for (float fi = 0; fi < 10.0; fi++) {
51 c[(int)fi] = a[(int)fi] + b[(int)fi];
53 // expected-error@+2 {{variable must be of integer or random access iterator type}}
54 #pragma omp target simd
55 for (double fi = 0; fi < 10.0; fi++) {
56 c[(int)fi] = a[(int)fi] + b[(int)fi];
58 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
59 #pragma omp target simd
60 for (int &ref = ii; ref < 10; ref++) {
62 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
63 #pragma omp target simd
64 for (int i; i < 10; i++)
67 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
68 #pragma omp target simd
69 for (int i = 0, j = 0; i < 10; ++i)
72 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
73 #pragma omp target simd
77 // expected-warning@+3 {{expression result unused}}
78 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
79 #pragma omp target simd
80 for (ii + 1; ii < 10; ++ii)
83 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
84 #pragma omp target simd
85 for (c[ii] = 0; ii < 10; ++ii)
88 // Ok to skip parenthesises.
89 #pragma omp target simd
90 for (((ii)) = 0; ii < 10; ++ii)
93 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}}
94 #pragma omp target simd
95 for (int i = 0; i; i++)
98 // expected-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}}
99 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}}
100 #pragma omp target simd
101 for (int i = 0; jj < kk; ii++)
104 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}}
105 #pragma omp target simd
106 for (int i = 0; !!i; i++)
109 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}}
110 #pragma omp target simd
111 for (int i = 0; i != 1; i++)
114 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}}
115 #pragma omp target simd
116 for (int i = 0;; i++)
120 #pragma omp target simd
121 for (int i = 11; i > 10; i--)
125 #pragma omp target simd
126 for (int i = 0; i < 10; ++i)
130 #pragma omp target simd
131 for (ii = 0; ii < 10; ++ii)
134 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
135 #pragma omp target simd
136 for (ii = 0; ii < 10; ++jj)
139 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
140 #pragma omp target simd
141 for (ii = 0; ii < 10; ++++ii)
144 // Ok but undefined behavior (in general, cannot check that incr
145 // is really loop-invariant).
146 #pragma omp target simd
147 for (ii = 0; ii < 10; ii = ii + ii)
150 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}}
151 #pragma omp target simd
152 for (ii = 0; ii < 10; ii = ii + 1.0f)
155 // Ok - step was converted to integer type.
156 #pragma omp target simd
157 for (ii = 0; ii < 10; ii = ii + (int)1.1f)
160 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
161 #pragma omp target simd
162 for (ii = 0; ii < 10; jj = ii + 2)
165 // expected-warning@+3 {{relational comparison result unused}}
166 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
167 #pragma omp target simd
168 for (ii = 0; ii<10; jj> kk + 2)
171 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
172 #pragma omp target simd
173 for (ii = 0; ii < 10;)
176 // expected-warning@+3 {{expression result unused}}
177 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
178 #pragma omp target simd
179 for (ii = 0; ii < 10; !ii)
182 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
183 #pragma omp target simd
184 for (ii = 0; ii < 10; ii ? ++ii : ++jj)
187 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
188 #pragma omp target simd
189 for (ii = 0; ii < 10; ii = ii < 10)
192 // expected-note@+3 {{loop step is expected to be positive due to this condition}}
193 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
194 #pragma omp target simd
195 for (ii = 0; ii < 10; ii = ii + 0)
198 // expected-note@+3 {{loop step is expected to be positive due to this condition}}
199 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
200 #pragma omp target simd
201 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45))
204 // expected-note@+3 {{loop step is expected to be positive due to this condition}}
205 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
206 #pragma omp target simd
207 for (ii = 0; (ii) < 10; ii -= 25)
210 // expected-note@+3 {{loop step is expected to be positive due to this condition}}
211 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
212 #pragma omp target simd
213 for (ii = 0; (ii < 10); ii -= 0)
216 // expected-note@+3 {{loop step is expected to be negative due to this condition}}
217 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}}
218 #pragma omp target simd
219 for (ii = 0; ii > 10; (ii += 0))
222 // expected-note@+3 {{loop step is expected to be positive due to this condition}}
223 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
224 #pragma omp target simd
225 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii))
228 // expected-note@+3 {{loop step is expected to be negative due to this condition}}
229 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}}
230 #pragma omp target simd
231 for ((ii = 0); ii > 10; (ii -= 0))
234 // expected-note@+3 {{loop step is expected to be positive due to this condition}}
235 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
236 #pragma omp target simd
237 for (ii = 0; (ii < 10); (ii -= 0))
240 // expected-note@+2 {{defined as firstprivate}}
241 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp target simd' directive may not be firstprivate, predetermined as linear}}
242 #pragma omp target simd firstprivate(ii)
243 for (ii = 0; ii < 10; ii++)
246 #pragma omp target simd linear(ii)
247 for (ii = 0; ii < 10; ii++)
250 // expected-note@+2 {{defined as private}}
251 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp target simd' directive may not be private, predetermined as linear}}
252 #pragma omp target simd private(ii)
253 for (ii = 0; ii < 10; ii++)
256 // expected-note@+2 {{defined as lastprivate}}
257 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp target simd' directive may not be lastprivate, predetermined as linear}}
258 #pragma omp target simd lastprivate(ii)
259 for (ii = 0; ii < 10; ii++)
263 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp target simd' directive may not be threadprivate or thread local, predetermined as linear}}
264 #pragma omp target simd
265 for (sii = 0; sii < 10; sii += 1)
270 #pragma omp target simd
271 for (globalii = 0; globalii < 10; globalii += 1)
272 c[globalii] = a[globalii];
276 #pragma omp target simd collapse(2)
277 for (ii = 0; ii < 10; ii += 1)
278 for (globalii = 0; globalii < 10; globalii += 1)
279 c[globalii] += a[globalii] + ii;
282 // expected-error@+2 {{statement after '#pragma omp target simd' must be a for loop}}
283 #pragma omp target simd
284 for (auto &item : a) {
288 // expected-note@+3 {{loop step is expected to be positive due to this condition}}
289 // expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}}
290 #pragma omp target simd
291 for (unsigned i = 9; i < 10; i--) {
295 int(*lb)[4] = nullptr;
296 #pragma omp target simd
297 for (int(*p)[4] = lb; p < lb + 8; ++p) {
300 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
301 #pragma omp target simd
302 for (int a{0}; a < 10; ++a) {
308 // Iterators allowed in openmp for-loops.
310 struct random_access_iterator_tag {};
311 template <class Iter>
312 struct iterator_traits {
313 typedef typename Iter::difference_type difference_type;
314 typedef typename Iter::iterator_category iterator_category;
316 template <class Iter>
317 typename iterator_traits<Iter>::difference_type
318 distance(Iter first, Iter last) { return first - last; }
323 Iter0(const Iter0 &) {}
324 Iter0 operator++() { return *this; }
325 Iter0 operator--() { return *this; }
326 bool operator<(Iter0 a) { return true; }
328 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}}
329 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}}
330 int operator-(Iter0 a, Iter0 b) { return 0; }
333 Iter1(float f = 0.0f, double d = 0.0) {}
334 Iter1(const Iter1 &) {}
335 Iter1 operator++() { return *this; }
336 Iter1 operator--() { return *this; }
337 bool operator<(Iter1 a) { return true; }
338 bool operator>=(Iter1 a) { return false; }
343 GoodIter(const GoodIter &) {}
344 GoodIter(int fst, int snd) {}
345 GoodIter &operator=(const GoodIter &that) { return *this; }
346 GoodIter &operator=(const Iter0 &that) { return *this; }
347 GoodIter &operator+=(int x) { return *this; }
348 GoodIter &operator-=(int x) { return *this; }
349 explicit GoodIter(void *) {}
350 GoodIter operator++() { return *this; }
351 GoodIter operator--() { return *this; }
352 bool operator!() { return true; }
353 bool operator<(GoodIter a) { return true; }
354 bool operator<=(GoodIter a) { return true; }
355 bool operator>=(GoodIter a) { return false; }
356 typedef int difference_type;
357 typedef std::random_access_iterator_tag iterator_category;
359 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}}
360 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}}
361 int operator-(GoodIter a, GoodIter b) { return 0; }
362 // expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}}
363 GoodIter operator-(GoodIter a) { return a; }
364 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}}
365 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}}
366 GoodIter operator-(GoodIter a, int v) { return GoodIter(); }
367 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}}
368 GoodIter operator+(GoodIter a, int v) { return GoodIter(); }
369 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}}
370 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}}
371 GoodIter operator-(int v, GoodIter a) { return GoodIter(); }
372 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}}
373 GoodIter operator+(int v, GoodIter a) { return GoodIter(); }
375 int test_with_random_access_iterator() {
378 #pragma omp target simd
379 for (GoodIter I = begin; I < end; ++I)
381 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
382 #pragma omp target simd
383 for (GoodIter &I = begin; I < end; ++I)
385 #pragma omp target simd
386 for (GoodIter I = begin; I >= end; --I)
388 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
389 #pragma omp target simd
390 for (GoodIter I(begin); I < end; ++I)
392 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
393 #pragma omp target simd
394 for (GoodIter I(nullptr); I < end; ++I)
396 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
397 #pragma omp target simd
398 for (GoodIter I(0); I < end; ++I)
400 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
401 #pragma omp target simd
402 for (GoodIter I(1, 2); I < end; ++I)
404 #pragma omp target simd
405 for (begin = GoodIter(0); begin < end; ++begin)
407 // expected-error@+3 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}}
408 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}
409 #pragma omp target simd
410 for (begin = begin0; begin < end; ++begin)
412 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
413 #pragma omp target simd
414 for (++begin; begin < end; ++begin)
416 #pragma omp target simd
417 for (begin = end; begin < end; ++begin)
419 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}}
420 #pragma omp target simd
421 for (GoodIter I = begin; I - I; ++I)
423 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}}
424 #pragma omp target simd
425 for (GoodIter I = begin; begin < end; ++I)
427 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}}
428 #pragma omp target simd
429 for (GoodIter I = begin; !I; ++I)
431 // expected-note@+3 {{loop step is expected to be negative due to this condition}}
432 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}
433 #pragma omp target simd
434 for (GoodIter I = begin; I >= end; I = I + 1)
436 #pragma omp target simd
437 for (GoodIter I = begin; I >= end; I = I - 1)
439 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}}
440 #pragma omp target simd
441 for (GoodIter I = begin; I >= end; I = -I)
443 // expected-note@+3 {{loop step is expected to be negative due to this condition}}
444 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}
445 #pragma omp target simd
446 for (GoodIter I = begin; I >= end; I = 2 + I)
448 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}}
449 #pragma omp target simd
450 for (GoodIter I = begin; I >= end; I = 2 - I)
452 // expected-error@+2 {{invalid operands to binary expression ('Iter0' and 'int')}}
453 #pragma omp target simd
454 for (Iter0 I = begin0; I < end0; ++I)
456 // Initializer is constructor without params.
457 // expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}}
458 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
459 #pragma omp target simd
460 for (Iter0 I; I < end0; ++I)
463 // expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}}
464 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}
465 #pragma omp target simd
466 for (Iter1 I = begin1; I < end1; ++I)
468 // expected-note@+3 {{loop step is expected to be negative due to this condition}}
469 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}
470 #pragma omp target simd
471 for (Iter1 I = begin1; I >= end1; ++I)
473 // expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'float')}}
474 // expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}
475 // Initializer is constructor with all default params.
476 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
477 #pragma omp target simd
478 for (Iter1 I; I < end1; ++I) {
483 template <typename IT, int ST>
486 int dotest_lt(IT begin, IT end) {
487 // expected-note@+3 {{loop step is expected to be positive due to this condition}}
488 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}}
489 #pragma omp target simd
490 for (IT I = begin; I < end; I = I + ST) {
493 // expected-note@+3 {{loop step is expected to be positive due to this condition}}
494 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}}
495 #pragma omp target simd
496 for (IT I = begin; I <= end; I += ST) {
499 #pragma omp target simd
500 for (IT I = begin; I < end; ++I) {
509 template <typename IT, int ST = 0>
510 int dotest_gt(IT begin, IT end) {
511 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}}
512 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}
513 #pragma omp target simd
514 for (IT I = begin; I >= end; I = I + ST) {
517 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}}
518 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}
519 #pragma omp target simd
520 for (IT I = begin; I >= end; I += ST) {
524 // expected-note@+3 {{loop step is expected to be negative due to this condition}}
525 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}
526 #pragma omp target simd
527 for (IT I = begin; I >= end; ++I) {
531 #pragma omp target simd
532 for (IT I = begin; I < end; I += TC<int, ST>::step()) {
537 void test_with_template() {
539 TC<GoodIter, 100> t1;
540 TC<GoodIter, -100> t2;
541 t1.dotest_lt(begin, end);
542 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}}
543 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}}
544 dotest_gt<unsigned, -10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, -10>' requested here}}
547 void test_loop_break() {
549 float a[N], b[N], c[N];
550 #pragma omp target simd
551 for (int i = 0; i < 10; i++) {
553 for (int j = 0; j < 10; ++j) {
555 break; // OK in nested loop
565 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}
568 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}
571 #pragma omp target simd
572 for (int i = 0; i < 10; i++) {
573 for (int j = 0; j < 10; j++) {
584 void test_loop_eh() {
586 float a[N], b[N], c[N];
587 #pragma omp target simd
588 for (int i = 0; i < 10; i++) {
590 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}}
591 for (int j = 0; j < 10; ++j) {
593 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}
595 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}
598 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}
599 return; // expected-error {{cannot return from OpenMP region}}
608 for (int j = 0; j < 10; j++) {
610 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}
616 #pragma omp target simd
617 for (int i = 0; i < 10; ++i) {
619 void g() { throw 0; }
624 void test_loop_firstprivate_lastprivate() {
626 #pragma omp target simd lastprivate(s) firstprivate(s)
627 for (int i = 0; i < 16; ++i)