1 // RUN: %clang_cc1 -fsyntax-only -fopenmp -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify %s 2 3 class S { 4 int a; 5 S() : a(0) {} 6 7 public: 8 S(int v) : a(v) {} 9 S(const S &s) : a(s.a) {} 10 }; 11 12 static int sii; 13 // expected-note@+1 {{defined as threadprivate or thread local}} 14 #pragma omp threadprivate(sii) 15 static int globalii; 16 17 int test_iteration_spaces() { 18 const int N = 100; 19 float a[N], b[N], c[N]; 20 int ii, jj, kk; 21 float fii; 22 double dii; 23 #pragma omp parallel 24 #pragma omp for simd 25 for (int i = 0; i < 10; i += 1) { 26 c[i] = a[i] + b[i]; 27 } 28 #pragma omp parallel 29 #pragma omp for simd 30 for (char i = 0; i < 10; i++) { 31 c[i] = a[i] + b[i]; 32 } 33 #pragma omp parallel 34 #pragma omp for simd 35 for (char i = 0; i < 10; i += '\1') { 36 c[i] = a[i] + b[i]; 37 } 38 #pragma omp parallel 39 #pragma omp for simd 40 for (long long i = 0; i < 10; i++) { 41 c[i] = a[i] + b[i]; 42 } 43 #pragma omp parallel 44 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}} 45 #pragma omp for simd 46 for (long long i = 0; i < 10; i += 1.5) { 47 c[i] = a[i] + b[i]; 48 } 49 #pragma omp parallel 50 #pragma omp for simd 51 for (long long i = 0; i < 'z'; i += 1u) { 52 c[i] = a[i] + b[i]; 53 } 54 #pragma omp parallel 55 // expected-error@+2 {{variable must be of integer or random access iterator type}} 56 #pragma omp for simd 57 for (float fi = 0; fi < 10.0; fi++) { 58 c[(int)fi] = a[(int)fi] + b[(int)fi]; 59 } 60 #pragma omp parallel 61 // expected-error@+2 {{variable must be of integer or random access iterator type}} 62 #pragma omp for simd 63 for (double fi = 0; fi < 10.0; fi++) { 64 c[(int)fi] = a[(int)fi] + b[(int)fi]; 65 } 66 #pragma omp parallel 67 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 68 #pragma omp for simd 69 for (int &ref = ii; ref < 10; ref++) { 70 } 71 #pragma omp parallel 72 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 73 #pragma omp for simd 74 for (int i; i < 10; i++) 75 c[i] = a[i]; 76 77 #pragma omp parallel 78 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 79 #pragma omp for simd 80 for (int i = 0, j = 0; i < 10; ++i) 81 c[i] = a[i]; 82 83 #pragma omp parallel 84 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 85 #pragma omp for simd 86 for (; ii < 10; ++ii) 87 c[ii] = a[ii]; 88 89 #pragma omp parallel 90 // expected-warning@+3 {{expression result unused}} 91 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 92 #pragma omp for simd 93 for (ii + 1; ii < 10; ++ii) 94 c[ii] = a[ii]; 95 96 #pragma omp parallel 97 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 98 #pragma omp for simd 99 for (c[ii] = 0; ii < 10; ++ii) 100 c[ii] = a[ii]; 101 102 #pragma omp parallel 103 // Ok to skip parenthesises. 104 #pragma omp for simd 105 for (((ii)) = 0; ii < 10; ++ii) 106 c[ii] = a[ii]; 107 108 #pragma omp parallel 109 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 110 #pragma omp for simd 111 for (int i = 0; i; i++) 112 c[i] = a[i]; 113 114 #pragma omp parallel 115 // expected-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 116 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}} 117 #pragma omp for simd 118 for (int i = 0; jj < kk; ii++) 119 c[i] = a[i]; 120 121 #pragma omp parallel 122 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 123 #pragma omp for simd 124 for (int i = 0; !!i; i++) 125 c[i] = a[i]; 126 127 #pragma omp parallel 128 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 129 #pragma omp for simd 130 for (int i = 0; i != 1; i++) 131 c[i] = a[i]; 132 133 #pragma omp parallel 134 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 135 #pragma omp for simd 136 for (int i = 0;; i++) 137 c[i] = a[i]; 138 139 #pragma omp parallel 140 // Ok. 141 #pragma omp for simd 142 for (int i = 11; i > 10; i--) 143 c[i] = a[i]; 144 145 #pragma omp parallel 146 // Ok. 147 #pragma omp for simd 148 for (int i = 0; i < 10; ++i) 149 c[i] = a[i]; 150 151 #pragma omp parallel 152 // Ok. 153 #pragma omp for simd 154 for (ii = 0; ii < 10; ++ii) 155 c[ii] = a[ii]; 156 157 #pragma omp parallel 158 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 159 #pragma omp for simd 160 for (ii = 0; ii < 10; ++jj) 161 c[ii] = a[jj]; 162 163 #pragma omp parallel 164 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 165 #pragma omp for simd 166 for (ii = 0; ii < 10; ++++ii) 167 c[ii] = a[ii]; 168 169 #pragma omp parallel 170 // Ok but undefined behavior (in general, cannot check that incr 171 // is really loop-invariant). 172 #pragma omp for simd 173 for (ii = 0; ii < 10; ii = ii + ii) 174 c[ii] = a[ii]; 175 176 #pragma omp parallel 177 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}} 178 #pragma omp for simd 179 for (ii = 0; ii < 10; ii = ii + 1.0f) 180 c[ii] = a[ii]; 181 182 #pragma omp parallel 183 // Ok - step was converted to integer type. 184 #pragma omp for simd 185 for (ii = 0; ii < 10; ii = ii + (int)1.1f) 186 c[ii] = a[ii]; 187 188 #pragma omp parallel 189 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 190 #pragma omp for simd 191 for (ii = 0; ii < 10; jj = ii + 2) 192 c[ii] = a[ii]; 193 194 #pragma omp parallel 195 // expected-warning@+3 {{relational comparison result unused}} 196 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 197 #pragma omp for simd 198 for (ii = 0; ii<10; jj> kk + 2) 199 c[ii] = a[ii]; 200 201 #pragma omp parallel 202 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 203 #pragma omp for simd 204 for (ii = 0; ii < 10;) 205 c[ii] = a[ii]; 206 207 #pragma omp parallel 208 // expected-warning@+3 {{expression result unused}} 209 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 210 #pragma omp for simd 211 for (ii = 0; ii < 10; !ii) 212 c[ii] = a[ii]; 213 214 #pragma omp parallel 215 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 216 #pragma omp for simd 217 for (ii = 0; ii < 10; ii ? ++ii : ++jj) 218 c[ii] = a[ii]; 219 220 #pragma omp parallel 221 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 222 #pragma omp for simd 223 for (ii = 0; ii < 10; ii = ii < 10) 224 c[ii] = a[ii]; 225 226 #pragma omp parallel 227 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 228 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 229 #pragma omp for simd 230 for (ii = 0; ii < 10; ii = ii + 0) 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 for simd 237 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45)) 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 for simd 244 for (ii = 0; (ii) < 10; ii -= 25) 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 for simd 251 for (ii = 0; (ii < 10); ii -= 0) 252 c[ii] = a[ii]; 253 254 #pragma omp parallel 255 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 256 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 257 #pragma omp for simd 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 positive due to this condition}} 263 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 264 #pragma omp for simd 265 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii)) 266 c[ii] = a[ii]; 267 268 #pragma omp parallel 269 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 270 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 271 #pragma omp for simd 272 for ((ii = 0); ii > 10; (ii -= 0)) 273 c[ii] = a[ii]; 274 275 #pragma omp parallel 276 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 277 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 278 #pragma omp for simd 279 for (ii = 0; (ii < 10); (ii -= 0)) 280 c[ii] = a[ii]; 281 282 #pragma omp parallel 283 // expected-note@+2 {{defined as firstprivate}} 284 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be firstprivate, predetermined as linear}} 285 #pragma omp for simd firstprivate(ii) 286 for (ii = 0; ii < 10; ii++) 287 c[ii] = a[ii]; 288 289 #pragma omp parallel 290 #pragma omp for simd linear(ii) 291 for (ii = 0; ii < 10; ii++) 292 c[ii] = a[ii]; 293 294 #pragma omp parallel 295 // expected-note@+2 {{defined as private}} 296 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be private, predetermined as linear}} 297 #pragma omp for simd private(ii) 298 for (ii = 0; ii < 10; ii++) 299 c[ii] = a[ii]; 300 301 #pragma omp parallel 302 // expected-note@+2 {{defined as lastprivate}} 303 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be lastprivate, predetermined as linear}} 304 #pragma omp for simd lastprivate(ii) 305 for (ii = 0; ii < 10; ii++) 306 c[ii] = a[ii]; 307 308 #pragma omp parallel 309 { 310 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be threadprivate or thread local, predetermined as linear}} 311 #pragma omp for simd 312 for (sii = 0; sii < 10; sii += 1) 313 c[sii] = a[sii]; 314 } 315 316 #pragma omp parallel 317 { 318 #pragma omp for simd 319 for (globalii = 0; globalii < 10; globalii += 1) 320 c[globalii] = a[globalii]; 321 } 322 323 #pragma omp parallel 324 { 325 #pragma omp for simd collapse(2) 326 for (ii = 0; ii < 10; ii += 1) 327 for (globalii = 0; globalii < 10; globalii += 1) 328 c[globalii] += a[globalii] + ii; 329 } 330 331 #pragma omp parallel 332 // expected-error@+2 {{statement after '#pragma omp for simd' must be a for loop}} 333 #pragma omp for simd 334 for (auto &item : a) { 335 item = item + 1; 336 } 337 338 #pragma omp parallel 339 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 340 // expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}} 341 #pragma omp for simd 342 for (unsigned i = 9; i < 10; i--) { 343 c[i] = a[i] + b[i]; 344 } 345 346 int(*lb)[4] = nullptr; 347 #pragma omp parallel 348 #pragma omp for simd 349 for (int(*p)[4] = lb; p < lb + 8; ++p) { 350 } 351 352 #pragma omp parallel 353 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 354 #pragma omp for simd 355 for (int a{0}; a < 10; ++a) { 356 } 357 358 return 0; 359 } 360 361 // Iterators allowed in openmp for-loops. 362 namespace std { 363 struct random_access_iterator_tag {}; 364 template <class Iter> 365 struct iterator_traits { 366 typedef typename Iter::difference_type difference_type; 367 typedef typename Iter::iterator_category iterator_category; 368 }; 369 template <class Iter> 370 typename iterator_traits<Iter>::difference_type 371 distance(Iter first, Iter last) { return first - last; } 372 } 373 class Iter0 { 374 public: 375 Iter0() {} 376 Iter0(const Iter0 &) {} 377 Iter0 operator++() { return *this; } 378 Iter0 operator--() { return *this; } 379 bool operator<(Iter0 a) { return true; } 380 }; 381 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}} 382 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}} 383 int operator-(Iter0 a, Iter0 b) { return 0; } 384 class Iter1 { 385 public: 386 Iter1(float f = 0.0f, double d = 0.0) {} 387 Iter1(const Iter1 &) {} 388 Iter1 operator++() { return *this; } 389 Iter1 operator--() { return *this; } 390 bool operator<(Iter1 a) { return true; } 391 bool operator>=(Iter1 a) { return false; } 392 }; 393 class GoodIter { 394 public: 395 GoodIter() {} 396 GoodIter(const GoodIter &) {} 397 GoodIter(int fst, int snd) {} 398 GoodIter &operator=(const GoodIter &that) { return *this; } 399 GoodIter &operator=(const Iter0 &that) { return *this; } 400 GoodIter &operator+=(int x) { return *this; } 401 explicit GoodIter(void *) {} 402 GoodIter operator++() { return *this; } 403 GoodIter operator--() { return *this; } 404 bool operator!() { return true; } 405 bool operator<(GoodIter a) { return true; } 406 bool operator<=(GoodIter a) { return true; } 407 bool operator>=(GoodIter a) { return false; } 408 typedef int difference_type; 409 typedef std::random_access_iterator_tag iterator_category; 410 }; 411 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}} 412 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 413 int operator-(GoodIter a, GoodIter b) { return 0; } 414 // expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}} 415 GoodIter operator-(GoodIter a) { return a; } 416 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}} 417 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 418 GoodIter operator-(GoodIter a, int v) { return GoodIter(); } 419 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}} 420 GoodIter operator+(GoodIter a, int v) { return GoodIter(); } 421 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}} 422 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}} 423 GoodIter operator-(int v, GoodIter a) { return GoodIter(); } 424 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}} 425 GoodIter operator+(int v, GoodIter a) { return GoodIter(); } 426 427 int test_with_random_access_iterator() { 428 GoodIter begin, end; 429 Iter0 begin0, end0; 430 #pragma omp parallel 431 #pragma omp for simd 432 for (GoodIter I = begin; I < end; ++I) 433 ++I; 434 #pragma omp parallel 435 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 436 #pragma omp for simd 437 for (GoodIter &I = begin; I < end; ++I) 438 ++I; 439 #pragma omp parallel 440 #pragma omp for simd 441 for (GoodIter I = begin; I >= end; --I) 442 ++I; 443 #pragma omp parallel 444 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 445 #pragma omp for simd 446 for (GoodIter I(begin); I < end; ++I) 447 ++I; 448 #pragma omp parallel 449 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 450 #pragma omp for simd 451 for (GoodIter I(nullptr); I < end; ++I) 452 ++I; 453 #pragma omp parallel 454 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 455 #pragma omp for simd 456 for (GoodIter I(0); I < end; ++I) 457 ++I; 458 #pragma omp parallel 459 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 460 #pragma omp for simd 461 for (GoodIter I(1, 2); I < end; ++I) 462 ++I; 463 #pragma omp parallel 464 #pragma omp for simd 465 for (begin = GoodIter(0); begin < end; ++begin) 466 ++begin; 467 #pragma omp parallel 468 // expected-error@+3 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}} 469 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 470 #pragma omp for simd 471 for (begin = begin0; begin < end; ++begin) 472 ++begin; 473 #pragma omp parallel 474 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 475 #pragma omp for simd 476 for (++begin; begin < end; ++begin) 477 ++begin; 478 #pragma omp parallel 479 #pragma omp for simd 480 for (begin = end; begin < end; ++begin) 481 ++begin; 482 #pragma omp parallel 483 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 484 #pragma omp for simd 485 for (GoodIter I = begin; I - I; ++I) 486 ++I; 487 #pragma omp parallel 488 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 489 #pragma omp for simd 490 for (GoodIter I = begin; begin < end; ++I) 491 ++I; 492 #pragma omp parallel 493 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 494 #pragma omp for simd 495 for (GoodIter I = begin; !I; ++I) 496 ++I; 497 #pragma omp parallel 498 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 499 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 500 #pragma omp for simd 501 for (GoodIter I = begin; I >= end; I = I + 1) 502 ++I; 503 #pragma omp parallel 504 #pragma omp for simd 505 for (GoodIter I = begin; I >= end; I = I - 1) 506 ++I; 507 #pragma omp parallel 508 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 509 #pragma omp for simd 510 for (GoodIter I = begin; I >= end; I = -I) 511 ++I; 512 #pragma omp parallel 513 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 514 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 515 #pragma omp for simd 516 for (GoodIter I = begin; I >= end; I = 2 + I) 517 ++I; 518 #pragma omp parallel 519 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 520 #pragma omp for simd 521 for (GoodIter I = begin; I >= end; I = 2 - I) 522 ++I; 523 #pragma omp parallel 524 // expected-error@+2 {{invalid operands to binary expression ('Iter0' and 'int')}} 525 #pragma omp for simd 526 for (Iter0 I = begin0; I < end0; ++I) 527 ++I; 528 #pragma omp parallel 529 // Initializer is constructor without params. 530 // expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}} 531 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 532 #pragma omp for simd 533 for (Iter0 I; I < end0; ++I) 534 ++I; 535 Iter1 begin1, end1; 536 #pragma omp parallel 537 // expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 538 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 539 #pragma omp for simd 540 for (Iter1 I = begin1; I < end1; ++I) 541 ++I; 542 #pragma omp parallel 543 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 544 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 545 #pragma omp for simd 546 for (Iter1 I = begin1; I >= end1; ++I) 547 ++I; 548 #pragma omp parallel 549 // expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'float')}} 550 // expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 551 // Initializer is constructor with all default params. 552 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 553 #pragma omp for simd 554 for (Iter1 I; I < end1; ++I) { 555 } 556 return 0; 557 } 558 559 template <typename IT, int ST> 560 class TC { 561 public: 562 int dotest_lt(IT begin, IT end) { 563 #pragma omp parallel 564 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 565 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 566 #pragma omp for simd 567 for (IT I = begin; I < end; I = I + ST) { 568 ++I; 569 } 570 #pragma omp parallel 571 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 572 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 573 #pragma omp for simd 574 for (IT I = begin; I <= end; I += ST) { 575 ++I; 576 } 577 #pragma omp parallel 578 #pragma omp for simd 579 for (IT I = begin; I < end; ++I) { 580 ++I; 581 } 582 } 583 584 static IT step() { 585 return IT(ST); 586 } 587 }; 588 template <typename IT, int ST = 0> 589 int dotest_gt(IT begin, IT end) { 590 #pragma omp parallel 591 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 592 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 593 #pragma omp for simd 594 for (IT I = begin; I >= end; I = I + ST) { 595 ++I; 596 } 597 #pragma omp parallel 598 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 599 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 600 #pragma omp for simd 601 for (IT I = begin; I >= end; I += ST) { 602 ++I; 603 } 604 605 #pragma omp parallel 606 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 607 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 608 #pragma omp for simd 609 for (IT I = begin; I >= end; ++I) { 610 ++I; 611 } 612 613 #pragma omp parallel 614 #pragma omp for simd 615 for (IT I = begin; I < end; I += TC<int, ST>::step()) { 616 ++I; 617 } 618 } 619 620 void test_with_template() { 621 GoodIter begin, end; 622 TC<GoodIter, 100> t1; 623 TC<GoodIter, -100> t2; 624 t1.dotest_lt(begin, end); 625 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}} 626 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}} 627 dotest_gt<unsigned, -10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, -10>' requested here}} 628 } 629 630 void test_loop_break() { 631 const int N = 100; 632 float a[N], b[N], c[N]; 633 #pragma omp parallel 634 #pragma omp for simd 635 for (int i = 0; i < 10; i++) { 636 c[i] = a[i] + b[i]; 637 for (int j = 0; j < 10; ++j) { 638 if (a[i] > b[j]) 639 break; // OK in nested loop 640 } 641 switch (i) { 642 case 1: 643 b[i]++; 644 break; 645 default: 646 break; 647 } 648 if (c[i] > 10) 649 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 650 651 if (c[i] > 11) 652 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 653 } 654 655 #pragma omp parallel 656 #pragma omp for simd 657 for (int i = 0; i < 10; i++) { 658 for (int j = 0; j < 10; j++) { 659 c[i] = a[i] + b[i]; 660 if (c[i] > 10) { 661 if (c[i] < 20) { 662 break; // OK 663 } 664 } 665 } 666 } 667 } 668 669 void test_loop_eh() { 670 const int N = 100; 671 float a[N], b[N], c[N]; 672 #pragma omp parallel 673 #pragma omp for simd 674 for (int i = 0; i < 10; i++) { 675 c[i] = a[i] + b[i]; 676 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}} 677 for (int j = 0; j < 10; ++j) { 678 if (a[i] > b[j]) 679 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 680 } 681 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 682 } 683 catch (float f) { 684 if (f > 0.1) 685 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 686 return; // expected-error {{cannot return from OpenMP region}} 687 } 688 switch (i) { 689 case 1: 690 b[i]++; 691 break; 692 default: 693 break; 694 } 695 for (int j = 0; j < 10; j++) { 696 if (c[i] > 10) 697 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 698 } 699 } 700 if (c[9] > 10) 701 throw c[9]; // OK 702 703 #pragma omp parallel 704 #pragma omp for simd 705 for (int i = 0; i < 10; ++i) { 706 struct S { 707 void g() { throw 0; } 708 }; 709 } 710 } 711 712 void test_loop_firstprivate_lastprivate() { 713 S s(4); 714 #pragma omp parallel 715 #pragma omp for simd lastprivate(s) firstprivate(s) 716 for (int i = 0; i < 16; ++i) 717 ; 718 } 719 720 void test_ordered() { 721 #pragma omp parallel 722 #pragma omp for simd ordered ordered // expected-error {{directive '#pragma omp for simd' cannot contain more than one 'ordered' clause}} 723 for (int i = 0; i < 16; ++i) 724 ; 725 #pragma omp parallel 726 #pragma omp for simd ordered 727 for (int i = 0; i < 16; ++i) 728 ; 729 #pragma omp parallel 730 // expected-error@+1 {{'ordered' clause with a parameter can not be specified in '#pragma omp for simd' directive}} 731 #pragma omp for simd ordered(1) 732 for (int i = 0; i < 16; ++i) 733 ; 734 } 735 736 void test_nowait() { 737 #pragma omp parallel 738 #pragma omp for simd nowait nowait // expected-error {{directive '#pragma omp for simd' cannot contain more than one 'nowait' clause}} 739 for (int i = 0; i < 16; ++i) 740 ; 741 } 742
