1 // RUN: %clang_cc1 -fsyntax-only -fopenmp -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify %s 2 3 // RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify %s 4 5 class S { 6 int a; 7 S() : a(0) {} 8 9 public: 10 S(int v) : a(v) {} 11 S(const S &s) : a(s.a) {} 12 }; 13 14 static int sii; 15 // expected-note@+1 {{defined as threadprivate or thread local}} 16 #pragma omp threadprivate(sii) 17 static int globalii; 18 19 // Currently, we cannot use "0" for global register variables. 20 // register int reg0 __asm__("0"); 21 int reg0; 22 23 int test_iteration_spaces() { 24 const int N = 100; 25 float a[N], b[N], c[N]; 26 int ii, jj, kk; 27 float fii; 28 double dii; 29 register int reg; // expected-warning {{'register' storage class specifier is deprecated}} 30 #pragma omp parallel 31 #pragma omp taskloop 32 for (int i = 0; i < 10; i += 1) { 33 c[i] = a[i] + b[i]; 34 } 35 #pragma omp parallel 36 #pragma omp taskloop 37 for (char i = 0; i < 10; i++) { 38 c[i] = a[i] + b[i]; 39 } 40 #pragma omp parallel 41 #pragma omp taskloop 42 for (char i = 0; i < 10; i += '\1') { 43 c[i] = a[i] + b[i]; 44 } 45 #pragma omp parallel 46 #pragma omp taskloop 47 for (long long i = 0; i < 10; i++) { 48 c[i] = a[i] + b[i]; 49 } 50 #pragma omp parallel 51 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}} 52 #pragma omp taskloop 53 for (long long i = 0; i < 10; i += 1.5) { 54 c[i] = a[i] + b[i]; 55 } 56 #pragma omp parallel 57 #pragma omp taskloop 58 for (long long i = 0; i < 'z'; i += 1u) { 59 c[i] = a[i] + b[i]; 60 } 61 #pragma omp parallel 62 // expected-error@+2 {{variable must be of integer or random access iterator type}} 63 #pragma omp taskloop 64 for (float fi = 0; fi < 10.0; fi++) { 65 c[(int)fi] = a[(int)fi] + b[(int)fi]; 66 } 67 #pragma omp parallel 68 // expected-error@+2 {{variable must be of integer or random access iterator type}} 69 #pragma omp taskloop 70 for (double fi = 0; fi < 10.0; fi++) { 71 c[(int)fi] = a[(int)fi] + b[(int)fi]; 72 } 73 #pragma omp parallel 74 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 75 #pragma omp taskloop 76 for (int &ref = ii; ref < 10; ref++) { 77 } 78 #pragma omp parallel 79 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 80 #pragma omp taskloop 81 for (int i; i < 10; i++) 82 c[i] = a[i]; 83 84 #pragma omp parallel 85 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 86 #pragma omp taskloop 87 for (int i = 0, j = 0; i < 10; ++i) 88 c[i] = a[i]; 89 90 #pragma omp parallel 91 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 92 #pragma omp taskloop 93 for (; ii < 10; ++ii) 94 c[ii] = a[ii]; 95 96 #pragma omp parallel 97 // expected-warning@+3 {{expression result unused}} 98 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 99 #pragma omp taskloop 100 for (ii + 1; ii < 10; ++ii) 101 c[ii] = a[ii]; 102 103 #pragma omp parallel 104 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 105 #pragma omp taskloop 106 for (c[ii] = 0; ii < 10; ++ii) 107 c[ii] = a[ii]; 108 109 #pragma omp parallel 110 // Ok to skip parenthesises. 111 #pragma omp taskloop 112 for (((ii)) = 0; ii < 10; ++ii) 113 c[ii] = a[ii]; 114 115 #pragma omp parallel 116 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 117 #pragma omp taskloop 118 for (int i = 0; i; i++) 119 c[i] = a[i]; 120 121 #pragma omp parallel 122 // expected-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 123 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}} 124 #pragma omp taskloop 125 for (int i = 0; jj < kk; ii++) 126 c[i] = a[i]; 127 128 #pragma omp parallel 129 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 130 #pragma omp taskloop 131 for (int i = 0; !!i; i++) 132 c[i] = a[i]; 133 134 #pragma omp parallel 135 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 136 #pragma omp taskloop 137 for (int i = 0; i != 1; i++) 138 c[i] = a[i]; 139 140 #pragma omp parallel 141 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 142 #pragma omp taskloop 143 for (int i = 0;; i++) 144 c[i] = a[i]; 145 146 #pragma omp parallel 147 // Ok. 148 #pragma omp taskloop 149 for (int i = 11; i > 10; i--) 150 c[i] = a[i]; 151 152 #pragma omp parallel 153 // Ok. 154 #pragma omp taskloop 155 for (int i = 0; i < 10; ++i) 156 c[i] = a[i]; 157 158 #pragma omp parallel 159 // Ok. 160 #pragma omp taskloop 161 for (ii = 0; ii < 10; ++ii) 162 c[ii] = a[ii]; 163 164 #pragma omp parallel 165 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 166 #pragma omp taskloop 167 for (ii = 0; ii < 10; ++jj) 168 c[ii] = a[jj]; 169 170 #pragma omp parallel 171 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 172 #pragma omp taskloop 173 for (ii = 0; ii < 10; ++++ii) 174 c[ii] = a[ii]; 175 176 #pragma omp parallel 177 // Ok but undefined behavior (in general, cannot check that incr 178 // is really loop-invariant). 179 #pragma omp taskloop 180 for (ii = 0; ii < 10; ii = ii + ii) 181 c[ii] = a[ii]; 182 183 #pragma omp parallel 184 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}} 185 #pragma omp taskloop 186 for (ii = 0; ii < 10; ii = ii + 1.0f) 187 c[ii] = a[ii]; 188 189 #pragma omp parallel 190 // Ok - step was converted to integer type. 191 #pragma omp taskloop 192 for (ii = 0; ii < 10; ii = ii + (int)1.1f) 193 c[ii] = a[ii]; 194 195 #pragma omp parallel 196 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 197 #pragma omp taskloop 198 for (ii = 0; ii < 10; jj = ii + 2) 199 c[ii] = a[ii]; 200 201 #pragma omp parallel 202 // expected-warning@+3 {{relational comparison result unused}} 203 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 204 #pragma omp taskloop 205 for (ii = 0; ii<10; jj> kk + 2) 206 c[ii] = a[ii]; 207 208 #pragma omp parallel 209 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 210 #pragma omp taskloop 211 for (ii = 0; ii < 10;) 212 c[ii] = a[ii]; 213 214 #pragma omp parallel 215 // expected-warning@+3 {{expression result unused}} 216 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 217 #pragma omp taskloop 218 for (ii = 0; ii < 10; !ii) 219 c[ii] = a[ii]; 220 221 #pragma omp parallel 222 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 223 #pragma omp taskloop 224 for (ii = 0; ii < 10; ii ? ++ii : ++jj) 225 c[ii] = a[ii]; 226 227 #pragma omp parallel 228 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 229 #pragma omp taskloop 230 for (ii = 0; ii < 10; ii = ii < 10) 231 c[ii] = a[ii]; 232 233 #pragma omp parallel 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 taskloop 237 for (ii = 0; ii < 10; ii = ii + 0) 238 c[ii] = a[ii]; 239 240 #pragma omp parallel 241 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 242 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 243 #pragma omp taskloop 244 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45)) 245 c[ii] = a[ii]; 246 247 #pragma omp parallel 248 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 249 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 250 #pragma omp taskloop 251 for (ii = 0; (ii) < 10; ii -= 25) 252 c[ii] = a[ii]; 253 254 #pragma omp parallel 255 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 256 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 257 #pragma omp taskloop 258 for (ii = 0; (ii < 10); ii -= 0) 259 c[ii] = a[ii]; 260 261 #pragma omp parallel 262 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 263 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 264 #pragma omp taskloop 265 for (ii = 0; ii > 10; (ii += 0)) 266 c[ii] = a[ii]; 267 268 #pragma omp parallel 269 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 270 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 271 #pragma omp taskloop 272 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii)) 273 c[ii] = a[ii]; 274 275 #pragma omp parallel 276 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 277 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 278 #pragma omp taskloop 279 for ((ii = 0); ii > 10; (ii -= 0)) 280 c[ii] = a[ii]; 281 282 #pragma omp parallel 283 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 284 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 285 #pragma omp taskloop 286 for (ii = 0; (ii < 10); (ii -= 0)) 287 c[ii] = a[ii]; 288 289 #pragma omp parallel 290 // expected-note@+2 {{defined as firstprivate}} 291 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp taskloop' directive may not be firstprivate, predetermined as private}} 292 #pragma omp taskloop firstprivate(ii) 293 for (ii = 0; ii < 10; ii++) 294 c[ii] = a[ii]; 295 296 #pragma omp parallel 297 // expected-error@+2 {{unexpected OpenMP clause 'linear' in directive '#pragma omp taskloop'}} 298 // expected-note@+1 {{defined as linear}} 299 #pragma omp taskloop linear(ii) 300 // expected-error@+1 {{loop iteration variable in the associated loop of 'omp taskloop' directive may not be linear, predetermined as private}} 301 for (ii = 0; ii < 10; ii++) 302 c[ii] = a[ii]; 303 304 #pragma omp parallel 305 #pragma omp taskloop private(ii) 306 for (ii = 0; ii < 10; ii++) 307 c[ii] = a[ii]; 308 309 #pragma omp parallel 310 #pragma omp taskloop lastprivate(ii) 311 for (ii = 0; ii < 10; ii++) 312 c[ii] = a[ii]; 313 314 #pragma omp parallel 315 { 316 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp taskloop' directive may not be threadprivate or thread local, predetermined as private}} 317 #pragma omp taskloop 318 for (sii = 0; sii < 10; sii += 1) 319 c[sii] = a[sii]; 320 } 321 322 #pragma omp parallel 323 { 324 #pragma omp taskloop 325 for (reg0 = 0; reg0 < 10; reg0 += 1) 326 c[reg0] = a[reg0]; 327 } 328 329 #pragma omp parallel 330 { 331 #pragma omp taskloop 332 for (reg = 0; reg < 10; reg += 1) 333 c[reg] = a[reg]; 334 } 335 336 #pragma omp parallel 337 { 338 #pragma omp taskloop 339 for (globalii = 0; globalii < 10; globalii += 1) 340 c[globalii] = a[globalii]; 341 } 342 343 #pragma omp parallel 344 { 345 #pragma omp taskloop collapse(2) 346 for (ii = 0; ii < 10; ii += 1) 347 for (globalii = 0; globalii < 10; globalii += 1) 348 c[globalii] += a[globalii] + ii; 349 } 350 351 #pragma omp parallel 352 // expected-error@+2 {{statement after '#pragma omp taskloop' must be a for loop}} 353 #pragma omp taskloop 354 for (auto &item : a) { 355 item = item + 1; 356 } 357 358 #pragma omp parallel 359 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 360 // expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}} 361 #pragma omp taskloop 362 for (unsigned i = 9; i < 10; i--) { 363 c[i] = a[i] + b[i]; 364 } 365 366 int(*lb)[4] = nullptr; 367 #pragma omp parallel 368 #pragma omp taskloop 369 for (int(*p)[4] = lb; p < lb + 8; ++p) { 370 } 371 372 #pragma omp parallel 373 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 374 #pragma omp taskloop 375 for (int a{0}; a < 10; ++a) { 376 } 377 378 return 0; 379 } 380 381 // Iterators allowed in openmp for-loops. 382 namespace std { 383 struct random_access_iterator_tag {}; 384 template <class Iter> 385 struct iterator_traits { 386 typedef typename Iter::difference_type difference_type; 387 typedef typename Iter::iterator_category iterator_category; 388 }; 389 template <class Iter> 390 typename iterator_traits<Iter>::difference_type 391 distance(Iter first, Iter last) { return first - last; } 392 } 393 class Iter0 { 394 public: 395 Iter0() {} 396 Iter0(const Iter0 &) {} 397 Iter0 operator++() { return *this; } 398 Iter0 operator--() { return *this; } 399 bool operator<(Iter0 a) { return true; } 400 }; 401 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}} 402 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}} 403 int operator-(Iter0 a, Iter0 b) { return 0; } 404 class Iter1 { 405 public: 406 Iter1(float f = 0.0f, double d = 0.0) {} 407 Iter1(const Iter1 &) {} 408 Iter1 operator++() { return *this; } 409 Iter1 operator--() { return *this; } 410 bool operator<(Iter1 a) { return true; } 411 bool operator>=(Iter1 a) { return false; } 412 }; 413 class GoodIter { 414 public: 415 GoodIter() {} 416 GoodIter(const GoodIter &) {} 417 GoodIter(int fst, int snd) {} 418 GoodIter &operator=(const GoodIter &that) { return *this; } 419 GoodIter &operator=(const Iter0 &that) { return *this; } 420 GoodIter &operator+=(int x) { return *this; } 421 GoodIter &operator-=(int x) { return *this; } 422 explicit GoodIter(void *) {} 423 GoodIter operator++() { return *this; } 424 GoodIter operator--() { return *this; } 425 bool operator!() { return true; } 426 bool operator<(GoodIter a) { return true; } 427 bool operator<=(GoodIter a) { return true; } 428 bool operator>=(GoodIter a) { return false; } 429 typedef int difference_type; 430 typedef std::random_access_iterator_tag iterator_category; 431 }; 432 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}} 433 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 434 int operator-(GoodIter a, GoodIter b) { return 0; } 435 // expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}} 436 GoodIter operator-(GoodIter a) { return a; } 437 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}} 438 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 439 GoodIter operator-(GoodIter a, int v) { return GoodIter(); } 440 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}} 441 GoodIter operator+(GoodIter a, int v) { return GoodIter(); } 442 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}} 443 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}} 444 GoodIter operator-(int v, GoodIter a) { return GoodIter(); } 445 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}} 446 GoodIter operator+(int v, GoodIter a) { return GoodIter(); } 447 448 int test_with_random_access_iterator() { 449 GoodIter begin, end; 450 Iter0 begin0, end0; 451 #pragma omp parallel 452 #pragma omp taskloop 453 for (GoodIter I = begin; I < end; ++I) 454 ++I; 455 #pragma omp parallel 456 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 457 #pragma omp taskloop 458 for (GoodIter &I = begin; I < end; ++I) 459 ++I; 460 #pragma omp parallel 461 #pragma omp taskloop 462 for (GoodIter I = begin; I >= end; --I) 463 ++I; 464 #pragma omp parallel 465 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 466 #pragma omp taskloop 467 for (GoodIter I(begin); I < end; ++I) 468 ++I; 469 #pragma omp parallel 470 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 471 #pragma omp taskloop 472 for (GoodIter I(nullptr); I < end; ++I) 473 ++I; 474 #pragma omp parallel 475 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 476 #pragma omp taskloop 477 for (GoodIter I(0); I < end; ++I) 478 ++I; 479 #pragma omp parallel 480 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 481 #pragma omp taskloop 482 for (GoodIter I(1, 2); I < end; ++I) 483 ++I; 484 #pragma omp parallel 485 #pragma omp taskloop 486 for (begin = GoodIter(0); begin < end; ++begin) 487 ++begin; 488 // expected-error@+4 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}} 489 // expected-error@+3 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 490 #pragma omp parallel 491 #pragma omp taskloop 492 for (begin = begin0; begin < end; ++begin) 493 ++begin; 494 #pragma omp parallel 495 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 496 #pragma omp taskloop 497 for (++begin; begin < end; ++begin) 498 ++begin; 499 #pragma omp parallel 500 #pragma omp taskloop 501 for (begin = end; begin < end; ++begin) 502 ++begin; 503 #pragma omp parallel 504 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 505 #pragma omp taskloop 506 for (GoodIter I = begin; I - I; ++I) 507 ++I; 508 #pragma omp parallel 509 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 510 #pragma omp taskloop 511 for (GoodIter I = begin; begin < end; ++I) 512 ++I; 513 #pragma omp parallel 514 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 515 #pragma omp taskloop 516 for (GoodIter I = begin; !I; ++I) 517 ++I; 518 #pragma omp parallel 519 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 520 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 521 #pragma omp taskloop 522 for (GoodIter I = begin; I >= end; I = I + 1) 523 ++I; 524 #pragma omp parallel 525 #pragma omp taskloop 526 for (GoodIter I = begin; I >= end; I = I - 1) 527 ++I; 528 #pragma omp parallel 529 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 530 #pragma omp taskloop 531 for (GoodIter I = begin; I >= end; I = -I) 532 ++I; 533 #pragma omp parallel 534 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 535 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 536 #pragma omp taskloop 537 for (GoodIter I = begin; I >= end; I = 2 + I) 538 ++I; 539 #pragma omp parallel 540 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 541 #pragma omp taskloop 542 for (GoodIter I = begin; I >= end; I = 2 - I) 543 ++I; 544 // In the following example, we cannot update the loop variable using '+=' 545 // expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}} 546 #pragma omp parallel 547 #pragma omp taskloop 548 for (Iter0 I = begin0; I < end0; ++I) 549 ++I; 550 #pragma omp parallel 551 // Initializer is constructor without params. 552 // expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}} 553 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 554 #pragma omp taskloop 555 for (Iter0 I; I < end0; ++I) 556 ++I; 557 Iter1 begin1, end1; 558 // expected-error@+4 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 559 // expected-error@+3 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 560 #pragma omp parallel 561 #pragma omp taskloop 562 for (Iter1 I = begin1; I < end1; ++I) 563 ++I; 564 #pragma omp parallel 565 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 566 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 567 #pragma omp taskloop 568 for (Iter1 I = begin1; I >= end1; ++I) 569 ++I; 570 #pragma omp parallel 571 // expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'float')}} 572 // expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 573 // Initializer is constructor with all default params. 574 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 575 #pragma omp taskloop 576 for (Iter1 I; I < end1; ++I) { 577 } 578 return 0; 579 } 580 581 template <typename IT, int ST> 582 class TC { 583 public: 584 int dotest_lt(IT begin, IT end) { 585 #pragma omp parallel 586 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 587 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 588 #pragma omp taskloop 589 for (IT I = begin; I < end; I = I + ST) { 590 ++I; 591 } 592 #pragma omp parallel 593 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 594 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 595 #pragma omp taskloop 596 for (IT I = begin; I <= end; I += ST) { 597 ++I; 598 } 599 #pragma omp parallel 600 #pragma omp taskloop 601 for (IT I = begin; I < end; ++I) { 602 ++I; 603 } 604 } 605 606 static IT step() { 607 return IT(ST); 608 } 609 }; 610 template <typename IT, int ST = 0> 611 int dotest_gt(IT begin, IT end) { 612 #pragma omp parallel 613 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 614 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 615 #pragma omp taskloop 616 for (IT I = begin; I >= end; I = I + ST) { 617 ++I; 618 } 619 #pragma omp parallel 620 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 621 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 622 #pragma omp taskloop 623 for (IT I = begin; I >= end; I += ST) { 624 ++I; 625 } 626 627 #pragma omp parallel 628 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 629 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 630 #pragma omp taskloop 631 for (IT I = begin; I >= end; ++I) { 632 ++I; 633 } 634 635 #pragma omp parallel 636 #pragma omp taskloop 637 for (IT I = begin; I < end; I += TC<int, ST>::step()) { 638 ++I; 639 } 640 } 641 642 void test_with_template() { 643 GoodIter begin, end; 644 TC<GoodIter, 100> t1; 645 TC<GoodIter, -100> t2; 646 t1.dotest_lt(begin, end); 647 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}} 648 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}} 649 dotest_gt<unsigned, 10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, 10>' requested here}} 650 } 651 652 void test_loop_break() { 653 const int N = 100; 654 float a[N], b[N], c[N]; 655 #pragma omp parallel 656 #pragma omp taskloop 657 for (int i = 0; i < 10; i++) { 658 c[i] = a[i] + b[i]; 659 for (int j = 0; j < 10; ++j) { 660 if (a[i] > b[j]) 661 break; // OK in nested loop 662 } 663 switch (i) { 664 case 1: 665 b[i]++; 666 break; 667 default: 668 break; 669 } 670 if (c[i] > 10) 671 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 672 673 if (c[i] > 11) 674 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 675 } 676 677 #pragma omp parallel 678 #pragma omp taskloop 679 for (int i = 0; i < 10; i++) { 680 for (int j = 0; j < 10; j++) { 681 c[i] = a[i] + b[i]; 682 if (c[i] > 10) { 683 if (c[i] < 20) { 684 break; // OK 685 } 686 } 687 } 688 } 689 } 690 691 void test_loop_eh() { 692 const int N = 100; 693 float a[N], b[N], c[N]; 694 #pragma omp parallel 695 #pragma omp taskloop 696 for (int i = 0; i < 10; i++) { 697 c[i] = a[i] + b[i]; 698 try { 699 for (int j = 0; j < 10; ++j) { 700 if (a[i] > b[j]) 701 throw a[i]; 702 } 703 throw a[i]; 704 } catch (float f) { 705 if (f > 0.1) 706 throw a[i]; 707 return; // expected-error {{cannot return from OpenMP region}} 708 } 709 switch (i) { 710 case 1: 711 b[i]++; 712 break; 713 default: 714 break; 715 } 716 for (int j = 0; j < 10; j++) { 717 if (c[i] > 10) 718 throw c[i]; 719 } 720 } 721 if (c[9] > 10) 722 throw c[9]; // OK 723 724 #pragma omp parallel 725 #pragma omp taskloop 726 for (int i = 0; i < 10; ++i) { 727 struct S { 728 void g() { throw 0; } 729 }; 730 } 731 } 732 733 void test_loop_firstprivate_lastprivate() { 734 S s(4); 735 #pragma omp parallel 736 #pragma omp taskloop lastprivate(s) firstprivate(s) 737 for (int i = 0; i < 16; ++i) 738 ; 739 } 740 741