1 // RUN: %clang_cc1 -fsyntax-only -fopenmp=libiomp5 -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 #pragma omp threadprivate(sii) // expected-note {{defined as threadprivate or thread local}} 14 15 int test_iteration_spaces() { 16 const int N = 100; 17 float a[N], b[N], c[N]; 18 int ii, jj, kk; 19 float fii; 20 double dii; 21 #pragma omp parallel 22 #pragma omp for simd 23 for (int i = 0; i < 10; i += 1) { 24 c[i] = a[i] + b[i]; 25 } 26 #pragma omp parallel 27 #pragma omp for simd 28 for (char i = 0; i < 10; i++) { 29 c[i] = a[i] + b[i]; 30 } 31 #pragma omp parallel 32 #pragma omp for simd 33 for (char i = 0; i < 10; i += '\1') { 34 c[i] = a[i] + b[i]; 35 } 36 #pragma omp parallel 37 #pragma omp for simd 38 for (long long i = 0; i < 10; i++) { 39 c[i] = a[i] + b[i]; 40 } 41 #pragma omp parallel 42 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}} 43 #pragma omp for simd 44 for (long long i = 0; i < 10; i += 1.5) { 45 c[i] = a[i] + b[i]; 46 } 47 #pragma omp parallel 48 #pragma omp for simd 49 for (long long i = 0; i < 'z'; i += 1u) { 50 c[i] = a[i] + b[i]; 51 } 52 #pragma omp parallel 53 // expected-error@+2 {{variable must be of integer or random access iterator type}} 54 #pragma omp for simd 55 for (float fi = 0; fi < 10.0; fi++) { 56 c[(int)fi] = a[(int)fi] + b[(int)fi]; 57 } 58 #pragma omp parallel 59 // expected-error@+2 {{variable must be of integer or random access iterator type}} 60 #pragma omp for simd 61 for (double fi = 0; fi < 10.0; fi++) { 62 c[(int)fi] = a[(int)fi] + b[(int)fi]; 63 } 64 #pragma omp parallel 65 // expected-error@+2 {{variable must be of integer or random access iterator type}} 66 #pragma omp for simd 67 for (int &ref = ii; ref < 10; ref++) { 68 } 69 #pragma omp parallel 70 // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} 71 #pragma omp for simd 72 for (int i; i < 10; i++) 73 c[i] = a[i]; 74 75 #pragma omp parallel 76 // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} 77 #pragma omp for simd 78 for (int i = 0, j = 0; i < 10; ++i) 79 c[i] = a[i]; 80 81 #pragma omp parallel 82 // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} 83 #pragma omp for simd 84 for (; ii < 10; ++ii) 85 c[ii] = a[ii]; 86 87 #pragma omp parallel 88 // expected-warning@+3 {{expression result unused}} 89 // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} 90 #pragma omp for simd 91 for (ii + 1; ii < 10; ++ii) 92 c[ii] = a[ii]; 93 94 #pragma omp parallel 95 // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} 96 #pragma omp for simd 97 for (c[ii] = 0; ii < 10; ++ii) 98 c[ii] = a[ii]; 99 100 #pragma omp parallel 101 // Ok to skip parenthesises. 102 #pragma omp for simd 103 for (((ii)) = 0; ii < 10; ++ii) 104 c[ii] = a[ii]; 105 106 #pragma omp parallel 107 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 108 #pragma omp for simd 109 for (int i = 0; i; i++) 110 c[i] = a[i]; 111 112 #pragma omp parallel 113 // expected-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 114 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}} 115 #pragma omp for simd 116 for (int i = 0; jj < kk; ii++) 117 c[i] = a[i]; 118 119 #pragma omp parallel 120 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 121 #pragma omp for simd 122 for (int i = 0; !!i; i++) 123 c[i] = a[i]; 124 125 #pragma omp parallel 126 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 127 #pragma omp for simd 128 for (int i = 0; i != 1; i++) 129 c[i] = a[i]; 130 131 #pragma omp parallel 132 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 133 #pragma omp for simd 134 for (int i = 0;; i++) 135 c[i] = a[i]; 136 137 #pragma omp parallel 138 // Ok. 139 #pragma omp for simd 140 for (int i = 11; i > 10; i--) 141 c[i] = a[i]; 142 143 #pragma omp parallel 144 // Ok. 145 #pragma omp for simd 146 for (int i = 0; i < 10; ++i) 147 c[i] = a[i]; 148 149 #pragma omp parallel 150 // Ok. 151 #pragma omp for simd 152 for (ii = 0; ii < 10; ++ii) 153 c[ii] = a[ii]; 154 155 #pragma omp parallel 156 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 157 #pragma omp for simd 158 for (ii = 0; ii < 10; ++jj) 159 c[ii] = a[jj]; 160 161 #pragma omp parallel 162 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 163 #pragma omp for simd 164 for (ii = 0; ii < 10; ++++ii) 165 c[ii] = a[ii]; 166 167 #pragma omp parallel 168 // Ok but undefined behavior (in general, cannot check that incr 169 // is really loop-invariant). 170 #pragma omp for simd 171 for (ii = 0; ii < 10; ii = ii + ii) 172 c[ii] = a[ii]; 173 174 #pragma omp parallel 175 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}} 176 #pragma omp for simd 177 for (ii = 0; ii < 10; ii = ii + 1.0f) 178 c[ii] = a[ii]; 179 180 #pragma omp parallel 181 // Ok - step was converted to integer type. 182 #pragma omp for simd 183 for (ii = 0; ii < 10; ii = ii + (int)1.1f) 184 c[ii] = a[ii]; 185 186 #pragma omp parallel 187 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 188 #pragma omp for simd 189 for (ii = 0; ii < 10; jj = ii + 2) 190 c[ii] = a[ii]; 191 192 #pragma omp parallel 193 // expected-warning@+3 {{relational comparison result unused}} 194 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 195 #pragma omp for simd 196 for (ii = 0; ii<10; jj> kk + 2) 197 c[ii] = a[ii]; 198 199 #pragma omp parallel 200 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 201 #pragma omp for simd 202 for (ii = 0; ii < 10;) 203 c[ii] = a[ii]; 204 205 #pragma omp parallel 206 // expected-warning@+3 {{expression result unused}} 207 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 208 #pragma omp for simd 209 for (ii = 0; ii < 10; !ii) 210 c[ii] = a[ii]; 211 212 #pragma omp parallel 213 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 214 #pragma omp for simd 215 for (ii = 0; ii < 10; ii ? ++ii : ++jj) 216 c[ii] = a[ii]; 217 218 #pragma omp parallel 219 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 220 #pragma omp for simd 221 for (ii = 0; ii < 10; ii = ii < 10) 222 c[ii] = a[ii]; 223 224 #pragma omp parallel 225 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 226 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 227 #pragma omp for simd 228 for (ii = 0; ii < 10; ii = ii + 0) 229 c[ii] = a[ii]; 230 231 #pragma omp parallel 232 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 233 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 234 #pragma omp for simd 235 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45)) 236 c[ii] = a[ii]; 237 238 #pragma omp parallel 239 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 240 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 241 #pragma omp for simd 242 for (ii = 0; (ii) < 10; ii -= 25) 243 c[ii] = a[ii]; 244 245 #pragma omp parallel 246 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 247 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 248 #pragma omp for simd 249 for (ii = 0; (ii < 10); ii -= 0) 250 c[ii] = a[ii]; 251 252 #pragma omp parallel 253 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 254 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 255 #pragma omp for simd 256 for (ii = 0; ii > 10; (ii += 0)) 257 c[ii] = a[ii]; 258 259 #pragma omp parallel 260 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 261 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 262 #pragma omp for simd 263 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii)) 264 c[ii] = a[ii]; 265 266 #pragma omp parallel 267 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 268 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 269 #pragma omp for simd 270 for ((ii = 0); ii > 10; (ii -= 0)) 271 c[ii] = a[ii]; 272 273 #pragma omp parallel 274 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 275 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 276 #pragma omp for simd 277 for (ii = 0; (ii < 10); (ii -= 0)) 278 c[ii] = a[ii]; 279 280 #pragma omp parallel 281 // expected-note@+2 {{defined as firstprivate}} 282 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be firstprivate, predetermined as linear}} 283 #pragma omp for simd firstprivate(ii) 284 for (ii = 0; ii < 10; ii++) 285 c[ii] = a[ii]; 286 287 #pragma omp parallel 288 #pragma omp for simd linear(ii) 289 for (ii = 0; ii < 10; ii++) 290 c[ii] = a[ii]; 291 292 #pragma omp parallel 293 // expected-note@+2 {{defined as private}} 294 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be private, predetermined as linear}} 295 #pragma omp for simd private(ii) 296 for (ii = 0; ii < 10; ii++) 297 c[ii] = a[ii]; 298 299 #pragma omp parallel 300 // expected-note@+2 {{defined as lastprivate}} 301 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be lastprivate, predetermined as linear}} 302 #pragma omp for simd lastprivate(ii) 303 for (ii = 0; ii < 10; ii++) 304 c[ii] = a[ii]; 305 306 #pragma omp parallel 307 { 308 // 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}} 309 #pragma omp for simd 310 for (sii = 0; sii < 10; sii += 1) 311 c[sii] = a[sii]; 312 } 313 314 #pragma omp parallel 315 // expected-error@+2 {{statement after '#pragma omp for simd' must be a for loop}} 316 #pragma omp for simd 317 for (auto &item : a) { 318 item = item + 1; 319 } 320 321 #pragma omp parallel 322 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 323 // expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}} 324 #pragma omp for simd 325 for (unsigned i = 9; i < 10; i--) { 326 c[i] = a[i] + b[i]; 327 } 328 329 int(*lb)[4] = nullptr; 330 #pragma omp parallel 331 #pragma omp for simd 332 for (int(*p)[4] = lb; p < lb + 8; ++p) { 333 } 334 335 #pragma omp parallel 336 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 337 #pragma omp for simd 338 for (int a{0}; a < 10; ++a) { 339 } 340 341 return 0; 342 } 343 344 // Iterators allowed in openmp for-loops. 345 namespace std { 346 struct random_access_iterator_tag {}; 347 template <class Iter> 348 struct iterator_traits { 349 typedef typename Iter::difference_type difference_type; 350 typedef typename Iter::iterator_category iterator_category; 351 }; 352 template <class Iter> 353 typename iterator_traits<Iter>::difference_type 354 distance(Iter first, Iter last) { return first - last; } 355 } 356 class Iter0 { 357 public: 358 Iter0() {} 359 Iter0(const Iter0 &) {} 360 Iter0 operator++() { return *this; } 361 Iter0 operator--() { return *this; } 362 bool operator<(Iter0 a) { return true; } 363 }; 364 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}} 365 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}} 366 int operator-(Iter0 a, Iter0 b) { return 0; } 367 class Iter1 { 368 public: 369 Iter1(float f = 0.0f, double d = 0.0) {} 370 Iter1(const Iter1 &) {} 371 Iter1 operator++() { return *this; } 372 Iter1 operator--() { return *this; } 373 bool operator<(Iter1 a) { return true; } 374 bool operator>=(Iter1 a) { return false; } 375 }; 376 class GoodIter { 377 public: 378 GoodIter() {} 379 GoodIter(const GoodIter &) {} 380 GoodIter(int fst, int snd) {} 381 GoodIter &operator=(const GoodIter &that) { return *this; } 382 GoodIter &operator=(const Iter0 &that) { return *this; } 383 GoodIter &operator+=(int x) { return *this; } 384 explicit GoodIter(void *) {} 385 GoodIter operator++() { return *this; } 386 GoodIter operator--() { return *this; } 387 bool operator!() { return true; } 388 bool operator<(GoodIter a) { return true; } 389 bool operator<=(GoodIter a) { return true; } 390 bool operator>=(GoodIter a) { return false; } 391 typedef int difference_type; 392 typedef std::random_access_iterator_tag iterator_category; 393 }; 394 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}} 395 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 396 int operator-(GoodIter a, GoodIter b) { return 0; } 397 // expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}} 398 GoodIter operator-(GoodIter a) { return a; } 399 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}} 400 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 401 GoodIter operator-(GoodIter a, int v) { return GoodIter(); } 402 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}} 403 GoodIter operator+(GoodIter a, int v) { return GoodIter(); } 404 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}} 405 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}} 406 GoodIter operator-(int v, GoodIter a) { return GoodIter(); } 407 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}} 408 GoodIter operator+(int v, GoodIter a) { return GoodIter(); } 409 410 int test_with_random_access_iterator() { 411 GoodIter begin, end; 412 Iter0 begin0, end0; 413 #pragma omp parallel 414 #pragma omp for simd 415 for (GoodIter I = begin; I < end; ++I) 416 ++I; 417 #pragma omp parallel 418 // expected-error@+2 {{variable must be of integer or random access iterator type}} 419 #pragma omp for simd 420 for (GoodIter &I = begin; I < end; ++I) 421 ++I; 422 #pragma omp parallel 423 #pragma omp for simd 424 for (GoodIter I = begin; I >= end; --I) 425 ++I; 426 #pragma omp parallel 427 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 428 #pragma omp for simd 429 for (GoodIter I(begin); I < end; ++I) 430 ++I; 431 #pragma omp parallel 432 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 433 #pragma omp for simd 434 for (GoodIter I(nullptr); I < end; ++I) 435 ++I; 436 #pragma omp parallel 437 // expected-warning@+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(0); I < end; ++I) 440 ++I; 441 #pragma omp parallel 442 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 443 #pragma omp for simd 444 for (GoodIter I(1, 2); I < end; ++I) 445 ++I; 446 #pragma omp parallel 447 #pragma omp for simd 448 for (begin = GoodIter(0); begin < end; ++begin) 449 ++begin; 450 #pragma omp parallel 451 // expected-error@+3 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}} 452 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 453 #pragma omp for simd 454 for (begin = begin0; begin < end; ++begin) 455 ++begin; 456 #pragma omp parallel 457 // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} 458 #pragma omp for simd 459 for (++begin; begin < end; ++begin) 460 ++begin; 461 #pragma omp parallel 462 #pragma omp for simd 463 for (begin = end; begin < end; ++begin) 464 ++begin; 465 #pragma omp parallel 466 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 467 #pragma omp for simd 468 for (GoodIter I = begin; I - I; ++I) 469 ++I; 470 #pragma omp parallel 471 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 472 #pragma omp for simd 473 for (GoodIter I = begin; begin < end; ++I) 474 ++I; 475 #pragma omp parallel 476 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 477 #pragma omp for simd 478 for (GoodIter I = begin; !I; ++I) 479 ++I; 480 #pragma omp parallel 481 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 482 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 483 #pragma omp for simd 484 for (GoodIter I = begin; I >= end; I = I + 1) 485 ++I; 486 #pragma omp parallel 487 #pragma omp for simd 488 for (GoodIter I = begin; I >= end; I = I - 1) 489 ++I; 490 #pragma omp parallel 491 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 492 #pragma omp for simd 493 for (GoodIter I = begin; I >= end; I = -I) 494 ++I; 495 #pragma omp parallel 496 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 497 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 498 #pragma omp for simd 499 for (GoodIter I = begin; I >= end; I = 2 + I) 500 ++I; 501 #pragma omp parallel 502 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 503 #pragma omp for simd 504 for (GoodIter I = begin; I >= end; I = 2 - I) 505 ++I; 506 #pragma omp parallel 507 // expected-error@+2 {{invalid operands to binary expression ('Iter0' and 'int')}} 508 #pragma omp for simd 509 for (Iter0 I = begin0; I < end0; ++I) 510 ++I; 511 #pragma omp parallel 512 // Initializer is constructor without params. 513 // expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}} 514 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 515 #pragma omp for simd 516 for (Iter0 I; I < end0; ++I) 517 ++I; 518 Iter1 begin1, end1; 519 #pragma omp parallel 520 // expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 521 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 522 #pragma omp for simd 523 for (Iter1 I = begin1; I < end1; ++I) 524 ++I; 525 #pragma omp parallel 526 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 527 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 528 #pragma omp for simd 529 for (Iter1 I = begin1; I >= end1; ++I) 530 ++I; 531 #pragma omp parallel 532 // expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 533 // expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 534 // Initializer is constructor with all default params. 535 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 536 #pragma omp for simd 537 for (Iter1 I; I < end1; ++I) { 538 } 539 return 0; 540 } 541 542 template <typename IT, int ST> 543 class TC { 544 public: 545 int dotest_lt(IT begin, IT end) { 546 #pragma omp parallel 547 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 548 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 549 #pragma omp for simd 550 for (IT I = begin; I < end; I = I + ST) { 551 ++I; 552 } 553 #pragma omp parallel 554 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 555 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 556 #pragma omp for simd 557 for (IT I = begin; I <= end; I += ST) { 558 ++I; 559 } 560 #pragma omp parallel 561 #pragma omp for simd 562 for (IT I = begin; I < end; ++I) { 563 ++I; 564 } 565 } 566 567 static IT step() { 568 return IT(ST); 569 } 570 }; 571 template <typename IT, int ST = 0> 572 int dotest_gt(IT begin, IT end) { 573 #pragma omp parallel 574 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 575 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 576 #pragma omp for simd 577 for (IT I = begin; I >= end; I = I + ST) { 578 ++I; 579 } 580 #pragma omp parallel 581 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 582 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 583 #pragma omp for simd 584 for (IT I = begin; I >= end; I += ST) { 585 ++I; 586 } 587 588 #pragma omp parallel 589 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 590 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 591 #pragma omp for simd 592 for (IT I = begin; I >= end; ++I) { 593 ++I; 594 } 595 596 #pragma omp parallel 597 #pragma omp for simd 598 for (IT I = begin; I < end; I += TC<int, ST>::step()) { 599 ++I; 600 } 601 } 602 603 void test_with_template() { 604 GoodIter begin, end; 605 TC<GoodIter, 100> t1; 606 TC<GoodIter, -100> t2; 607 t1.dotest_lt(begin, end); 608 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}} 609 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}} 610 dotest_gt<unsigned, -10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, -10>' requested here}} 611 } 612 613 void test_loop_break() { 614 const int N = 100; 615 float a[N], b[N], c[N]; 616 #pragma omp parallel 617 #pragma omp for simd 618 for (int i = 0; i < 10; i++) { 619 c[i] = a[i] + b[i]; 620 for (int j = 0; j < 10; ++j) { 621 if (a[i] > b[j]) 622 break; // OK in nested loop 623 } 624 switch (i) { 625 case 1: 626 b[i]++; 627 break; 628 default: 629 break; 630 } 631 if (c[i] > 10) 632 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 633 634 if (c[i] > 11) 635 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 636 } 637 638 #pragma omp parallel 639 #pragma omp for simd 640 for (int i = 0; i < 10; i++) { 641 for (int j = 0; j < 10; j++) { 642 c[i] = a[i] + b[i]; 643 if (c[i] > 10) { 644 if (c[i] < 20) { 645 break; // OK 646 } 647 } 648 } 649 } 650 } 651 652 void test_loop_eh() { 653 const int N = 100; 654 float a[N], b[N], c[N]; 655 #pragma omp parallel 656 #pragma omp for simd 657 for (int i = 0; i < 10; i++) { 658 c[i] = a[i] + b[i]; 659 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}} 660 for (int j = 0; j < 10; ++j) { 661 if (a[i] > b[j]) 662 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 663 } 664 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 665 } 666 catch (float f) { 667 if (f > 0.1) 668 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 669 return; // expected-error {{cannot return from OpenMP region}} 670 } 671 switch (i) { 672 case 1: 673 b[i]++; 674 break; 675 default: 676 break; 677 } 678 for (int j = 0; j < 10; j++) { 679 if (c[i] > 10) 680 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 681 } 682 } 683 if (c[9] > 10) 684 throw c[9]; // OK 685 686 #pragma omp parallel 687 #pragma omp for simd 688 for (int i = 0; i < 10; ++i) { 689 struct S { 690 void g() { throw 0; } 691 }; 692 } 693 } 694 695 void test_loop_firstprivate_lastprivate() { 696 S s(4); 697 #pragma omp parallel 698 #pragma omp for simd lastprivate(s) firstprivate(s) 699 for (int i = 0; i < 16; ++i) 700 ; 701 } 702 703 void test_ordered() { 704 #pragma omp parallel 705 // expected-error@+1 2 {{unexpected OpenMP clause 'ordered' in directive '#pragma omp for simd'}} 706 #pragma omp for simd ordered ordered // expected-error {{directive '#pragma omp for simd' cannot contain more than one 'ordered' clause}} 707 for (int i = 0; i < 16; ++i) 708 ; 709 } 710 711 void test_nowait() { 712 #pragma omp parallel 713 #pragma omp for simd nowait nowait // expected-error {{directive '#pragma omp for simd' cannot contain more than one 'nowait' clause}} 714 for (int i = 0; i < 16; ++i) 715 ; 716 } 717