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 int test_iteration_spaces() { 20 const int N = 100; 21 float a[N], b[N], c[N]; 22 int ii, jj, kk; 23 float fii; 24 double dii; 25 #pragma omp parallel 26 #pragma omp for simd 27 for (int i = 0; i < 10; i += 1) { 28 c[i] = a[i] + b[i]; 29 } 30 #pragma omp parallel 31 #pragma omp for simd 32 for (char i = 0; i < 10; i++) { 33 c[i] = a[i] + b[i]; 34 } 35 #pragma omp parallel 36 #pragma omp for simd 37 for (char i = 0; i < 10; i += '\1') { 38 c[i] = a[i] + b[i]; 39 } 40 #pragma omp parallel 41 #pragma omp for simd 42 for (long long i = 0; i < 10; i++) { 43 c[i] = a[i] + b[i]; 44 } 45 #pragma omp parallel 46 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}} 47 #pragma omp for simd 48 for (long long i = 0; i < 10; i += 1.5) { 49 c[i] = a[i] + b[i]; 50 } 51 #pragma omp parallel 52 #pragma omp for simd 53 for (long long i = 0; i < 'z'; i += 1u) { 54 c[i] = a[i] + b[i]; 55 } 56 #pragma omp parallel 57 // expected-error@+2 {{variable must be of integer or random access iterator type}} 58 #pragma omp for simd 59 for (float fi = 0; fi < 10.0; fi++) { 60 c[(int)fi] = a[(int)fi] + b[(int)fi]; 61 } 62 #pragma omp parallel 63 // expected-error@+2 {{variable must be of integer or random access iterator type}} 64 #pragma omp for simd 65 for (double fi = 0; fi < 10.0; fi++) { 66 c[(int)fi] = a[(int)fi] + b[(int)fi]; 67 } 68 #pragma omp parallel 69 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 70 #pragma omp for simd 71 for (int &ref = ii; ref < 10; ref++) { 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 for simd 76 for (int i; i < 10; i++) 77 c[i] = a[i]; 78 79 #pragma omp parallel 80 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 81 #pragma omp for simd 82 for (int i = 0, j = 0; i < 10; ++i) 83 c[i] = a[i]; 84 85 #pragma omp parallel 86 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 87 #pragma omp for simd 88 for (; ii < 10; ++ii) 89 c[ii] = a[ii]; 90 91 #pragma omp parallel 92 // expected-warning@+3 {{expression result unused}} 93 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 94 #pragma omp for simd 95 for (ii + 1; ii < 10; ++ii) 96 c[ii] = a[ii]; 97 98 #pragma omp parallel 99 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 100 #pragma omp for simd 101 for (c[ii] = 0; ii < 10; ++ii) 102 c[ii] = a[ii]; 103 104 #pragma omp parallel 105 // Ok to skip parenthesises. 106 #pragma omp for simd 107 for (((ii)) = 0; ii < 10; ++ii) 108 c[ii] = a[ii]; 109 110 #pragma omp parallel 111 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 112 #pragma omp for simd 113 for (int i = 0; i; i++) 114 c[i] = a[i]; 115 116 #pragma omp parallel 117 // expected-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 118 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}} 119 #pragma omp for simd 120 for (int i = 0; jj < kk; ii++) 121 c[i] = a[i]; 122 123 #pragma omp parallel 124 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 125 #pragma omp for simd 126 for (int i = 0; !!i; i++) 127 c[i] = a[i]; 128 129 #pragma omp parallel 130 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 131 #pragma omp for simd 132 for (int i = 0; i != 1; i++) 133 c[i] = a[i]; 134 135 #pragma omp parallel 136 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 137 #pragma omp for simd 138 for (int i = 0;; i++) 139 c[i] = a[i]; 140 141 #pragma omp parallel 142 // Ok. 143 #pragma omp for simd 144 for (int i = 11; i > 10; i--) 145 c[i] = a[i]; 146 147 #pragma omp parallel 148 // Ok. 149 #pragma omp for simd 150 for (int i = 0; i < 10; ++i) 151 c[i] = a[i]; 152 153 #pragma omp parallel 154 // Ok. 155 #pragma omp for simd 156 for (ii = 0; ii < 10; ++ii) 157 c[ii] = a[ii]; 158 159 #pragma omp parallel 160 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 161 #pragma omp for simd 162 for (ii = 0; ii < 10; ++jj) 163 c[ii] = a[jj]; 164 165 #pragma omp parallel 166 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 167 #pragma omp for simd 168 for (ii = 0; ii < 10; ++++ii) 169 c[ii] = a[ii]; 170 171 #pragma omp parallel 172 // Ok but undefined behavior (in general, cannot check that incr 173 // is really loop-invariant). 174 #pragma omp for simd 175 for (ii = 0; ii < 10; ii = ii + ii) 176 c[ii] = a[ii]; 177 178 #pragma omp parallel 179 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}} 180 #pragma omp for simd 181 for (ii = 0; ii < 10; ii = ii + 1.0f) 182 c[ii] = a[ii]; 183 184 #pragma omp parallel 185 // Ok - step was converted to integer type. 186 #pragma omp for simd 187 for (ii = 0; ii < 10; ii = ii + (int)1.1f) 188 c[ii] = a[ii]; 189 190 #pragma omp parallel 191 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 192 #pragma omp for simd 193 for (ii = 0; ii < 10; jj = ii + 2) 194 c[ii] = a[ii]; 195 196 #pragma omp parallel 197 // expected-warning@+3 {{relational comparison result unused}} 198 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 199 #pragma omp for simd 200 for (ii = 0; ii<10; jj> kk + 2) 201 c[ii] = a[ii]; 202 203 #pragma omp parallel 204 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 205 #pragma omp for simd 206 for (ii = 0; ii < 10;) 207 c[ii] = a[ii]; 208 209 #pragma omp parallel 210 // expected-warning@+3 {{expression result unused}} 211 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 212 #pragma omp for simd 213 for (ii = 0; ii < 10; !ii) 214 c[ii] = a[ii]; 215 216 #pragma omp parallel 217 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 218 #pragma omp for simd 219 for (ii = 0; ii < 10; ii ? ++ii : ++jj) 220 c[ii] = a[ii]; 221 222 #pragma omp parallel 223 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 224 #pragma omp for simd 225 for (ii = 0; ii < 10; ii = ii < 10) 226 c[ii] = a[ii]; 227 228 #pragma omp parallel 229 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 230 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 231 #pragma omp for simd 232 for (ii = 0; ii < 10; ii = ii + 0) 233 c[ii] = a[ii]; 234 235 #pragma omp parallel 236 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 237 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 238 #pragma omp for simd 239 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45)) 240 c[ii] = a[ii]; 241 242 #pragma omp parallel 243 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 244 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 245 #pragma omp for simd 246 for (ii = 0; (ii) < 10; ii -= 25) 247 c[ii] = a[ii]; 248 249 #pragma omp parallel 250 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 251 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 252 #pragma omp for simd 253 for (ii = 0; (ii < 10); ii -= 0) 254 c[ii] = a[ii]; 255 256 #pragma omp parallel 257 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 258 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 259 #pragma omp for simd 260 for (ii = 0; ii > 10; (ii += 0)) 261 c[ii] = a[ii]; 262 263 #pragma omp parallel 264 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 265 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 266 #pragma omp for simd 267 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii)) 268 c[ii] = a[ii]; 269 270 #pragma omp parallel 271 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 272 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 273 #pragma omp for simd 274 for ((ii = 0); ii > 10; (ii -= 0)) 275 c[ii] = a[ii]; 276 277 #pragma omp parallel 278 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 279 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 280 #pragma omp for simd 281 for (ii = 0; (ii < 10); (ii -= 0)) 282 c[ii] = a[ii]; 283 284 #pragma omp parallel 285 // expected-note@+2 {{defined as firstprivate}} 286 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be firstprivate, predetermined as linear}} 287 #pragma omp for simd firstprivate(ii) 288 for (ii = 0; ii < 10; ii++) 289 c[ii] = a[ii]; 290 291 #pragma omp parallel 292 #pragma omp for simd linear(ii) 293 for (ii = 0; ii < 10; ii++) 294 c[ii] = a[ii]; 295 296 #pragma omp parallel 297 // expected-note@+2 {{defined as private}} 298 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be private, predetermined as linear}} 299 #pragma omp for simd private(ii) 300 for (ii = 0; ii < 10; ii++) 301 c[ii] = a[ii]; 302 303 #pragma omp parallel 304 // expected-note@+2 {{defined as lastprivate}} 305 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be lastprivate, predetermined as linear}} 306 #pragma omp for simd lastprivate(ii) 307 for (ii = 0; ii < 10; ii++) 308 c[ii] = a[ii]; 309 310 #pragma omp parallel 311 { 312 // 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}} 313 #pragma omp for simd 314 for (sii = 0; sii < 10; sii += 1) 315 c[sii] = a[sii]; 316 } 317 318 #pragma omp parallel 319 { 320 #pragma omp for simd 321 for (globalii = 0; globalii < 10; globalii += 1) 322 c[globalii] = a[globalii]; 323 } 324 325 #pragma omp parallel 326 { 327 #pragma omp for simd collapse(2) 328 for (ii = 0; ii < 10; ii += 1) 329 for (globalii = 0; globalii < 10; globalii += 1) 330 c[globalii] += a[globalii] + ii; 331 } 332 333 #pragma omp parallel 334 // expected-error@+2 {{statement after '#pragma omp for simd' must be a for loop}} 335 #pragma omp for simd 336 for (auto &item : a) { 337 item = item + 1; 338 } 339 340 #pragma omp parallel 341 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 342 // expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}} 343 #pragma omp for simd 344 for (unsigned i = 9; i < 10; i--) { 345 c[i] = a[i] + b[i]; 346 } 347 348 int(*lb)[4] = nullptr; 349 #pragma omp parallel 350 #pragma omp for simd 351 for (int(*p)[4] = lb; p < lb + 8; ++p) { 352 } 353 354 #pragma omp parallel 355 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 356 #pragma omp for simd 357 for (int a{0}; a < 10; ++a) { 358 } 359 360 return 0; 361 } 362 363 // Iterators allowed in openmp for-loops. 364 namespace std { 365 struct random_access_iterator_tag {}; 366 template <class Iter> 367 struct iterator_traits { 368 typedef typename Iter::difference_type difference_type; 369 typedef typename Iter::iterator_category iterator_category; 370 }; 371 template <class Iter> 372 typename iterator_traits<Iter>::difference_type 373 distance(Iter first, Iter last) { return first - last; } 374 } 375 class Iter0 { 376 public: 377 Iter0() {} 378 Iter0(const Iter0 &) {} 379 Iter0 operator++() { return *this; } 380 Iter0 operator--() { return *this; } 381 bool operator<(Iter0 a) { return true; } 382 }; 383 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}} 384 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}} 385 int operator-(Iter0 a, Iter0 b) { return 0; } 386 class Iter1 { 387 public: 388 Iter1(float f = 0.0f, double d = 0.0) {} 389 Iter1(const Iter1 &) {} 390 Iter1 operator++() { return *this; } 391 Iter1 operator--() { return *this; } 392 bool operator<(Iter1 a) { return true; } 393 bool operator>=(Iter1 a) { return false; } 394 }; 395 class GoodIter { 396 public: 397 GoodIter() {} 398 GoodIter(const GoodIter &) {} 399 GoodIter(int fst, int snd) {} 400 GoodIter &operator=(const GoodIter &that) { return *this; } 401 GoodIter &operator=(const Iter0 &that) { return *this; } 402 GoodIter &operator+=(int x) { return *this; } 403 explicit GoodIter(void *) {} 404 GoodIter operator++() { return *this; } 405 GoodIter operator--() { return *this; } 406 bool operator!() { return true; } 407 bool operator<(GoodIter a) { return true; } 408 bool operator<=(GoodIter a) { return true; } 409 bool operator>=(GoodIter a) { return false; } 410 typedef int difference_type; 411 typedef std::random_access_iterator_tag iterator_category; 412 }; 413 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}} 414 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 415 int operator-(GoodIter a, GoodIter b) { return 0; } 416 // expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}} 417 GoodIter operator-(GoodIter a) { return a; } 418 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}} 419 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 420 GoodIter operator-(GoodIter a, int v) { return GoodIter(); } 421 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}} 422 GoodIter operator+(GoodIter a, int v) { return GoodIter(); } 423 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}} 424 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}} 425 GoodIter operator-(int v, GoodIter a) { return GoodIter(); } 426 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}} 427 GoodIter operator+(int v, GoodIter a) { return GoodIter(); } 428 429 int test_with_random_access_iterator() { 430 GoodIter begin, end; 431 Iter0 begin0, end0; 432 #pragma omp parallel 433 #pragma omp for simd 434 for (GoodIter I = begin; I < end; ++I) 435 ++I; 436 #pragma omp parallel 437 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 438 #pragma omp for simd 439 for (GoodIter &I = begin; I < end; ++I) 440 ++I; 441 #pragma omp parallel 442 #pragma omp for simd 443 for (GoodIter I = begin; I >= end; --I) 444 ++I; 445 #pragma omp parallel 446 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 447 #pragma omp for simd 448 for (GoodIter I(begin); I < end; ++I) 449 ++I; 450 #pragma omp parallel 451 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 452 #pragma omp for simd 453 for (GoodIter I(nullptr); I < end; ++I) 454 ++I; 455 #pragma omp parallel 456 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 457 #pragma omp for simd 458 for (GoodIter I(0); I < end; ++I) 459 ++I; 460 #pragma omp parallel 461 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 462 #pragma omp for simd 463 for (GoodIter I(1, 2); I < end; ++I) 464 ++I; 465 #pragma omp parallel 466 #pragma omp for simd 467 for (begin = GoodIter(0); begin < end; ++begin) 468 ++begin; 469 #pragma omp parallel 470 // expected-error@+3 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}} 471 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 472 #pragma omp for simd 473 for (begin = begin0; begin < end; ++begin) 474 ++begin; 475 #pragma omp parallel 476 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 477 #pragma omp for simd 478 for (++begin; begin < end; ++begin) 479 ++begin; 480 #pragma omp parallel 481 #pragma omp for simd 482 for (begin = end; begin < end; ++begin) 483 ++begin; 484 #pragma omp parallel 485 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 486 #pragma omp for simd 487 for (GoodIter I = begin; I - I; ++I) 488 ++I; 489 #pragma omp parallel 490 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 491 #pragma omp for simd 492 for (GoodIter I = begin; begin < end; ++I) 493 ++I; 494 #pragma omp parallel 495 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 496 #pragma omp for simd 497 for (GoodIter I = begin; !I; ++I) 498 ++I; 499 #pragma omp parallel 500 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 501 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 502 #pragma omp for simd 503 for (GoodIter I = begin; I >= end; I = I + 1) 504 ++I; 505 #pragma omp parallel 506 #pragma omp for simd 507 for (GoodIter I = begin; I >= end; I = I - 1) 508 ++I; 509 #pragma omp parallel 510 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 511 #pragma omp for simd 512 for (GoodIter I = begin; I >= end; I = -I) 513 ++I; 514 #pragma omp parallel 515 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 516 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 517 #pragma omp for simd 518 for (GoodIter I = begin; I >= end; I = 2 + I) 519 ++I; 520 #pragma omp parallel 521 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 522 #pragma omp for simd 523 for (GoodIter I = begin; I >= end; I = 2 - I) 524 ++I; 525 #pragma omp parallel 526 // expected-error@+2 {{invalid operands to binary expression ('Iter0' and 'int')}} 527 #pragma omp for simd 528 for (Iter0 I = begin0; I < end0; ++I) 529 ++I; 530 #pragma omp parallel 531 // Initializer is constructor without params. 532 // expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}} 533 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 534 #pragma omp for simd 535 for (Iter0 I; I < end0; ++I) 536 ++I; 537 Iter1 begin1, end1; 538 #pragma omp parallel 539 // expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 540 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 541 #pragma omp for simd 542 for (Iter1 I = begin1; I < end1; ++I) 543 ++I; 544 #pragma omp parallel 545 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 546 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 547 #pragma omp for simd 548 for (Iter1 I = begin1; I >= end1; ++I) 549 ++I; 550 #pragma omp parallel 551 // expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'float')}} 552 // expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 553 // Initializer is constructor with all default params. 554 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 555 #pragma omp for simd 556 for (Iter1 I; I < end1; ++I) { 557 } 558 return 0; 559 } 560 561 template <typename IT, int ST> 562 class TC { 563 public: 564 int dotest_lt(IT begin, IT end) { 565 #pragma omp parallel 566 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 567 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 568 #pragma omp for simd 569 for (IT I = begin; I < end; I = I + ST) { 570 ++I; 571 } 572 #pragma omp parallel 573 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 574 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 575 #pragma omp for simd 576 for (IT I = begin; I <= end; I += ST) { 577 ++I; 578 } 579 #pragma omp parallel 580 #pragma omp for simd 581 for (IT I = begin; I < end; ++I) { 582 ++I; 583 } 584 } 585 586 static IT step() { 587 return IT(ST); 588 } 589 }; 590 template <typename IT, int ST = 0> 591 int dotest_gt(IT begin, IT end) { 592 #pragma omp parallel 593 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 594 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 595 #pragma omp for simd 596 for (IT I = begin; I >= end; I = I + ST) { 597 ++I; 598 } 599 #pragma omp parallel 600 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 601 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 602 #pragma omp for simd 603 for (IT I = begin; I >= end; I += ST) { 604 ++I; 605 } 606 607 #pragma omp parallel 608 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 609 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 610 #pragma omp for simd 611 for (IT I = begin; I >= end; ++I) { 612 ++I; 613 } 614 615 #pragma omp parallel 616 #pragma omp for simd 617 for (IT I = begin; I < end; I += TC<int, ST>::step()) { 618 ++I; 619 } 620 } 621 622 void test_with_template() { 623 GoodIter begin, end; 624 TC<GoodIter, 100> t1; 625 TC<GoodIter, -100> t2; 626 t1.dotest_lt(begin, end); 627 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}} 628 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}} 629 dotest_gt<unsigned, 10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, 10>' requested here}} 630 } 631 632 void test_loop_break() { 633 const int N = 100; 634 float a[N], b[N], c[N]; 635 #pragma omp parallel 636 #pragma omp for simd 637 for (int i = 0; i < 10; i++) { 638 c[i] = a[i] + b[i]; 639 for (int j = 0; j < 10; ++j) { 640 if (a[i] > b[j]) 641 break; // OK in nested loop 642 } 643 switch (i) { 644 case 1: 645 b[i]++; 646 break; 647 default: 648 break; 649 } 650 if (c[i] > 10) 651 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 652 653 if (c[i] > 11) 654 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 655 } 656 657 #pragma omp parallel 658 #pragma omp for simd 659 for (int i = 0; i < 10; i++) { 660 for (int j = 0; j < 10; j++) { 661 c[i] = a[i] + b[i]; 662 if (c[i] > 10) { 663 if (c[i] < 20) { 664 break; // OK 665 } 666 } 667 } 668 } 669 } 670 671 void test_loop_eh() { 672 const int N = 100; 673 float a[N], b[N], c[N]; 674 #pragma omp parallel 675 #pragma omp for simd 676 for (int i = 0; i < 10; i++) { 677 c[i] = a[i] + b[i]; 678 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}} 679 for (int j = 0; j < 10; ++j) { 680 if (a[i] > b[j]) 681 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 682 } 683 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 684 } 685 catch (float f) { 686 if (f > 0.1) 687 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 688 return; // expected-error {{cannot return from OpenMP region}} 689 } 690 switch (i) { 691 case 1: 692 b[i]++; 693 break; 694 default: 695 break; 696 } 697 for (int j = 0; j < 10; j++) { 698 if (c[i] > 10) 699 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 700 } 701 } 702 if (c[9] > 10) 703 throw c[9]; // OK 704 705 #pragma omp parallel 706 #pragma omp for simd 707 for (int i = 0; i < 10; ++i) { 708 struct S { 709 void g() { throw 0; } 710 }; 711 } 712 } 713 714 void test_loop_firstprivate_lastprivate() { 715 S s(4); 716 #pragma omp parallel 717 #pragma omp for simd lastprivate(s) firstprivate(s) 718 for (int i = 0; i < 16; ++i) 719 ; 720 } 721 722 void test_ordered() { 723 #pragma omp parallel 724 #pragma omp for simd ordered ordered // expected-error {{directive '#pragma omp for simd' cannot contain more than one 'ordered' clause}} 725 for (int i = 0; i < 16; ++i) 726 ; 727 #pragma omp parallel 728 #pragma omp for simd ordered 729 for (int i = 0; i < 16; ++i) 730 ; 731 #pragma omp parallel 732 // expected-error@+1 {{'ordered' clause with a parameter can not be specified in '#pragma omp for simd' directive}} 733 #pragma omp for simd ordered(1) 734 for (int i = 0; i < 16; ++i) 735 ; 736 } 737 738 void test_nowait() { 739 #pragma omp parallel 740 #pragma omp for simd nowait nowait // expected-error {{directive '#pragma omp for simd' cannot contain more than one 'nowait' clause}} 741 for (int i = 0; i < 16; ++i) 742 ; 743 } 744