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 #pragma omp threadprivate(sii) 14 static int globalii; 15 16 int test_iteration_spaces() { 17 const int N = 100; 18 float a[N], b[N], c[N]; 19 int ii, jj, kk; 20 float fii; 21 double dii; 22 #pragma omp parallel 23 #pragma omp for simd 24 for (int i = 0; i < 10; i += 1) { 25 c[i] = a[i] + b[i]; 26 } 27 #pragma omp parallel 28 #pragma omp for simd 29 for (char i = 0; i < 10; i++) { 30 c[i] = a[i] + b[i]; 31 } 32 #pragma omp parallel 33 #pragma omp for simd 34 for (char i = 0; i < 10; i += '\1') { 35 c[i] = a[i] + b[i]; 36 } 37 #pragma omp parallel 38 #pragma omp for simd 39 for (long long i = 0; i < 10; i++) { 40 c[i] = a[i] + b[i]; 41 } 42 #pragma omp parallel 43 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}} 44 #pragma omp for simd 45 for (long long i = 0; i < 10; i += 1.5) { 46 c[i] = a[i] + b[i]; 47 } 48 #pragma omp parallel 49 #pragma omp for simd 50 for (long long i = 0; i < 'z'; i += 1u) { 51 c[i] = a[i] + b[i]; 52 } 53 #pragma omp parallel 54 // expected-error@+2 {{variable must be of integer or random access iterator type}} 55 #pragma omp for simd 56 for (float fi = 0; fi < 10.0; fi++) { 57 c[(int)fi] = a[(int)fi] + b[(int)fi]; 58 } 59 #pragma omp parallel 60 // expected-error@+2 {{variable must be of integer or random access iterator type}} 61 #pragma omp for simd 62 for (double fi = 0; fi < 10.0; fi++) { 63 c[(int)fi] = a[(int)fi] + b[(int)fi]; 64 } 65 #pragma omp parallel 66 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 67 #pragma omp for simd 68 for (int &ref = ii; ref < 10; ref++) { 69 } 70 #pragma omp parallel 71 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 72 #pragma omp for simd 73 for (int i; i < 10; i++) 74 c[i] = a[i]; 75 76 #pragma omp parallel 77 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 78 #pragma omp for simd 79 for (int i = 0, j = 0; i < 10; ++i) 80 c[i] = a[i]; 81 82 #pragma omp parallel 83 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 84 #pragma omp for simd 85 for (; ii < 10; ++ii) 86 c[ii] = a[ii]; 87 88 #pragma omp parallel 89 // expected-warning@+3 {{expression result unused}} 90 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 91 #pragma omp for simd 92 for (ii + 1; ii < 10; ++ii) 93 c[ii] = a[ii]; 94 95 #pragma omp parallel 96 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 97 #pragma omp for simd 98 for (c[ii] = 0; ii < 10; ++ii) 99 c[ii] = a[ii]; 100 101 #pragma omp parallel 102 // Ok to skip parenthesises. 103 #pragma omp for simd 104 for (((ii)) = 0; ii < 10; ++ii) 105 c[ii] = a[ii]; 106 107 #pragma omp parallel 108 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 109 #pragma omp for simd 110 for (int i = 0; i; i++) 111 c[i] = a[i]; 112 113 #pragma omp parallel 114 // expected-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 115 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}} 116 #pragma omp for simd 117 for (int i = 0; jj < kk; ii++) 118 c[i] = a[i]; 119 120 #pragma omp parallel 121 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 122 #pragma omp for simd 123 for (int i = 0; !!i; i++) 124 c[i] = a[i]; 125 126 #pragma omp parallel 127 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 128 #pragma omp for simd 129 for (int i = 0; i != 1; i++) 130 c[i] = a[i]; 131 132 #pragma omp parallel 133 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 134 #pragma omp for simd 135 for (int i = 0;; i++) 136 c[i] = a[i]; 137 138 #pragma omp parallel 139 // Ok. 140 #pragma omp for simd 141 for (int i = 11; i > 10; i--) 142 c[i] = a[i]; 143 144 #pragma omp parallel 145 // Ok. 146 #pragma omp for simd 147 for (int i = 0; i < 10; ++i) 148 c[i] = a[i]; 149 150 #pragma omp parallel 151 // Ok. 152 #pragma omp for simd 153 for (ii = 0; ii < 10; ++ii) 154 c[ii] = a[ii]; 155 156 #pragma omp parallel 157 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 158 #pragma omp for simd 159 for (ii = 0; ii < 10; ++jj) 160 c[ii] = a[jj]; 161 162 #pragma omp parallel 163 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 164 #pragma omp for simd 165 for (ii = 0; ii < 10; ++++ii) 166 c[ii] = a[ii]; 167 168 #pragma omp parallel 169 // Ok but undefined behavior (in general, cannot check that incr 170 // is really loop-invariant). 171 #pragma omp for simd 172 for (ii = 0; ii < 10; ii = ii + ii) 173 c[ii] = a[ii]; 174 175 #pragma omp parallel 176 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}} 177 #pragma omp for simd 178 for (ii = 0; ii < 10; ii = ii + 1.0f) 179 c[ii] = a[ii]; 180 181 #pragma omp parallel 182 // Ok - step was converted to integer type. 183 #pragma omp for simd 184 for (ii = 0; ii < 10; ii = ii + (int)1.1f) 185 c[ii] = a[ii]; 186 187 #pragma omp parallel 188 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 189 #pragma omp for simd 190 for (ii = 0; ii < 10; jj = ii + 2) 191 c[ii] = a[ii]; 192 193 #pragma omp parallel 194 // expected-warning@+3 {{relational comparison result unused}} 195 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 196 #pragma omp for simd 197 for (ii = 0; ii<10; jj> kk + 2) 198 c[ii] = a[ii]; 199 200 #pragma omp parallel 201 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 202 #pragma omp for simd 203 for (ii = 0; ii < 10;) 204 c[ii] = a[ii]; 205 206 #pragma omp parallel 207 // expected-warning@+3 {{expression result unused}} 208 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 209 #pragma omp for simd 210 for (ii = 0; ii < 10; !ii) 211 c[ii] = a[ii]; 212 213 #pragma omp parallel 214 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 215 #pragma omp for simd 216 for (ii = 0; ii < 10; ii ? ++ii : ++jj) 217 c[ii] = a[ii]; 218 219 #pragma omp parallel 220 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 221 #pragma omp for simd 222 for (ii = 0; ii < 10; ii = ii < 10) 223 c[ii] = a[ii]; 224 225 #pragma omp parallel 226 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 227 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 228 #pragma omp for simd 229 for (ii = 0; ii < 10; ii = ii + 0) 230 c[ii] = a[ii]; 231 232 #pragma omp parallel 233 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 234 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 235 #pragma omp for simd 236 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45)) 237 c[ii] = a[ii]; 238 239 #pragma omp parallel 240 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 241 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 242 #pragma omp for simd 243 for (ii = 0; (ii) < 10; ii -= 25) 244 c[ii] = a[ii]; 245 246 #pragma omp parallel 247 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 248 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 249 #pragma omp for simd 250 for (ii = 0; (ii < 10); ii -= 0) 251 c[ii] = a[ii]; 252 253 #pragma omp parallel 254 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 255 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 256 #pragma omp for simd 257 for (ii = 0; ii > 10; (ii += 0)) 258 c[ii] = a[ii]; 259 260 #pragma omp parallel 261 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 262 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 263 #pragma omp for simd 264 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii)) 265 c[ii] = a[ii]; 266 267 #pragma omp parallel 268 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 269 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 270 #pragma omp for simd 271 for ((ii = 0); ii > 10; (ii -= 0)) 272 c[ii] = a[ii]; 273 274 #pragma omp parallel 275 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 276 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 277 #pragma omp for simd 278 for (ii = 0; (ii < 10); (ii -= 0)) 279 c[ii] = a[ii]; 280 281 #pragma omp parallel 282 // expected-note@+2 {{defined as firstprivate}} 283 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be firstprivate, predetermined as linear}} 284 #pragma omp for simd firstprivate(ii) 285 for (ii = 0; ii < 10; ii++) 286 c[ii] = a[ii]; 287 288 #pragma omp parallel 289 #pragma omp for simd linear(ii) 290 for (ii = 0; ii < 10; ii++) 291 c[ii] = a[ii]; 292 293 #pragma omp parallel 294 // expected-note@+2 {{defined as private}} 295 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be private, predetermined as linear}} 296 #pragma omp for simd private(ii) 297 for (ii = 0; ii < 10; ii++) 298 c[ii] = a[ii]; 299 300 #pragma omp parallel 301 // expected-note@+2 {{defined as lastprivate}} 302 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be lastprivate, predetermined as linear}} 303 #pragma omp for simd lastprivate(ii) 304 for (ii = 0; ii < 10; ii++) 305 c[ii] = a[ii]; 306 307 #pragma omp parallel 308 { 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 { 316 #pragma omp for simd 317 for (globalii = 0; globalii < 10; globalii += 1) 318 c[globalii] = a[globalii]; 319 } 320 321 #pragma omp parallel 322 { 323 #pragma omp for simd collapse(2) 324 for (ii = 0; ii < 10; ii += 1) 325 for (globalii = 0; globalii < 10; globalii += 1) 326 c[globalii] += a[globalii] + ii; 327 } 328 329 #pragma omp parallel 330 // expected-error@+2 {{statement after '#pragma omp for simd' must be a for loop}} 331 #pragma omp for simd 332 for (auto &item : a) { 333 item = item + 1; 334 } 335 336 #pragma omp parallel 337 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 338 // expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}} 339 #pragma omp for simd 340 for (unsigned i = 9; i < 10; i--) { 341 c[i] = a[i] + b[i]; 342 } 343 344 int(*lb)[4] = nullptr; 345 #pragma omp parallel 346 #pragma omp for simd 347 for (int(*p)[4] = lb; p < lb + 8; ++p) { 348 } 349 350 #pragma omp parallel 351 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 352 #pragma omp for simd 353 for (int a{0}; a < 10; ++a) { 354 } 355 356 return 0; 357 } 358 359 // Iterators allowed in openmp for-loops. 360 namespace std { 361 struct random_access_iterator_tag {}; 362 template <class Iter> 363 struct iterator_traits { 364 typedef typename Iter::difference_type difference_type; 365 typedef typename Iter::iterator_category iterator_category; 366 }; 367 template <class Iter> 368 typename iterator_traits<Iter>::difference_type 369 distance(Iter first, Iter last) { return first - last; } 370 } 371 class Iter0 { 372 public: 373 Iter0() {} 374 Iter0(const Iter0 &) {} 375 Iter0 operator++() { return *this; } 376 Iter0 operator--() { return *this; } 377 bool operator<(Iter0 a) { return true; } 378 }; 379 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}} 380 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}} 381 int operator-(Iter0 a, Iter0 b) { return 0; } 382 class Iter1 { 383 public: 384 Iter1(float f = 0.0f, double d = 0.0) {} 385 Iter1(const Iter1 &) {} 386 Iter1 operator++() { return *this; } 387 Iter1 operator--() { return *this; } 388 bool operator<(Iter1 a) { return true; } 389 bool operator>=(Iter1 a) { return false; } 390 }; 391 class GoodIter { 392 public: 393 GoodIter() {} 394 GoodIter(const GoodIter &) {} 395 GoodIter(int fst, int snd) {} 396 GoodIter &operator=(const GoodIter &that) { return *this; } 397 GoodIter &operator=(const Iter0 &that) { return *this; } 398 GoodIter &operator+=(int x) { return *this; } 399 explicit GoodIter(void *) {} 400 GoodIter operator++() { return *this; } 401 GoodIter operator--() { return *this; } 402 bool operator!() { return true; } 403 bool operator<(GoodIter a) { return true; } 404 bool operator<=(GoodIter a) { return true; } 405 bool operator>=(GoodIter a) { return false; } 406 typedef int difference_type; 407 typedef std::random_access_iterator_tag iterator_category; 408 }; 409 // expected-note@+2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 2nd argument}} 410 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 411 int operator-(GoodIter a, GoodIter b) { return 0; } 412 // expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}} 413 GoodIter operator-(GoodIter a) { return a; } 414 // expected-note@+2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 2nd argument}} 415 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 416 GoodIter operator-(GoodIter a, int v) { return GoodIter(); } 417 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}} 418 GoodIter operator+(GoodIter a, int v) { return GoodIter(); } 419 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}} 420 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}} 421 GoodIter operator-(int v, GoodIter a) { return GoodIter(); } 422 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}} 423 GoodIter operator+(int v, GoodIter a) { return GoodIter(); } 424 425 int test_with_random_access_iterator() { 426 GoodIter begin, end; 427 Iter0 begin0, end0; 428 #pragma omp parallel 429 #pragma omp for simd 430 for (GoodIter I = begin; I < end; ++I) 431 ++I; 432 #pragma omp parallel 433 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 434 #pragma omp for simd 435 for (GoodIter &I = begin; I < end; ++I) 436 ++I; 437 #pragma omp parallel 438 #pragma omp for simd 439 for (GoodIter I = begin; 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(begin); I < end; ++I) 445 ++I; 446 #pragma omp parallel 447 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 448 #pragma omp for simd 449 for (GoodIter I(nullptr); I < end; ++I) 450 ++I; 451 #pragma omp parallel 452 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 453 #pragma omp for simd 454 for (GoodIter I(0); I < end; ++I) 455 ++I; 456 #pragma omp parallel 457 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 458 #pragma omp for simd 459 for (GoodIter I(1, 2); I < end; ++I) 460 ++I; 461 #pragma omp parallel 462 #pragma omp for simd 463 for (begin = GoodIter(0); begin < end; ++begin) 464 ++begin; 465 #pragma omp parallel 466 // expected-error@+3 {{invalid operands to binary expression ('GoodIter' and 'Iter0')}} 467 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 468 #pragma omp for simd 469 for (begin = begin0; begin < end; ++begin) 470 ++begin; 471 #pragma omp parallel 472 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 473 #pragma omp for simd 474 for (++begin; begin < end; ++begin) 475 ++begin; 476 #pragma omp parallel 477 #pragma omp for simd 478 for (begin = end; begin < end; ++begin) 479 ++begin; 480 #pragma omp parallel 481 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 482 #pragma omp for simd 483 for (GoodIter I = begin; I - I; ++I) 484 ++I; 485 #pragma omp parallel 486 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 487 #pragma omp for simd 488 for (GoodIter I = begin; begin < end; ++I) 489 ++I; 490 #pragma omp parallel 491 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 492 #pragma omp for simd 493 for (GoodIter I = begin; !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 = I + 1) 500 ++I; 501 #pragma omp parallel 502 #pragma omp for simd 503 for (GoodIter I = begin; I >= end; I = I - 1) 504 ++I; 505 #pragma omp parallel 506 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 507 #pragma omp for simd 508 for (GoodIter I = begin; I >= end; I = -I) 509 ++I; 510 #pragma omp parallel 511 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 512 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 513 #pragma omp for simd 514 for (GoodIter I = begin; I >= end; I = 2 + I) 515 ++I; 516 #pragma omp parallel 517 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 518 #pragma omp for simd 519 for (GoodIter I = begin; I >= end; I = 2 - I) 520 ++I; 521 #pragma omp parallel 522 // expected-error@+2 {{invalid operands to binary expression ('Iter0' and 'int')}} 523 #pragma omp for simd 524 for (Iter0 I = begin0; I < end0; ++I) 525 ++I; 526 #pragma omp parallel 527 // Initializer is constructor without params. 528 // expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}} 529 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 530 #pragma omp for simd 531 for (Iter0 I; I < end0; ++I) 532 ++I; 533 Iter1 begin1, end1; 534 #pragma omp parallel 535 // expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 536 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 537 #pragma omp for simd 538 for (Iter1 I = begin1; I < end1; ++I) 539 ++I; 540 #pragma omp parallel 541 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 542 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 543 #pragma omp for simd 544 for (Iter1 I = begin1; I >= end1; ++I) 545 ++I; 546 #pragma omp parallel 547 // expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'float')}} 548 // expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 549 // Initializer is constructor with all default params. 550 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 551 #pragma omp for simd 552 for (Iter1 I; I < end1; ++I) { 553 } 554 return 0; 555 } 556 557 template <typename IT, int ST> 558 class TC { 559 public: 560 int dotest_lt(IT begin, IT end) { 561 #pragma omp parallel 562 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 563 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 564 #pragma omp for simd 565 for (IT I = begin; I < end; I = I + ST) { 566 ++I; 567 } 568 #pragma omp parallel 569 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 570 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 571 #pragma omp for simd 572 for (IT I = begin; I <= end; I += ST) { 573 ++I; 574 } 575 #pragma omp parallel 576 #pragma omp for simd 577 for (IT I = begin; I < end; ++I) { 578 ++I; 579 } 580 } 581 582 static IT step() { 583 return IT(ST); 584 } 585 }; 586 template <typename IT, int ST = 0> 587 int dotest_gt(IT begin, IT end) { 588 #pragma omp parallel 589 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 590 // expected-error@+2 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 = I + ST) { 593 ++I; 594 } 595 #pragma omp parallel 596 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 597 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 598 #pragma omp for simd 599 for (IT I = begin; I >= end; I += ST) { 600 ++I; 601 } 602 603 #pragma omp parallel 604 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 605 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 606 #pragma omp for simd 607 for (IT I = begin; I >= end; ++I) { 608 ++I; 609 } 610 611 #pragma omp parallel 612 #pragma omp for simd 613 for (IT I = begin; I < end; I += TC<int, ST>::step()) { 614 ++I; 615 } 616 } 617 618 void test_with_template() { 619 GoodIter begin, end; 620 TC<GoodIter, 100> t1; 621 TC<GoodIter, -100> t2; 622 t1.dotest_lt(begin, end); 623 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}} 624 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}} 625 dotest_gt<unsigned, -10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, -10>' requested here}} 626 } 627 628 void test_loop_break() { 629 const int N = 100; 630 float a[N], b[N], c[N]; 631 #pragma omp parallel 632 #pragma omp for simd 633 for (int i = 0; i < 10; i++) { 634 c[i] = a[i] + b[i]; 635 for (int j = 0; j < 10; ++j) { 636 if (a[i] > b[j]) 637 break; // OK in nested loop 638 } 639 switch (i) { 640 case 1: 641 b[i]++; 642 break; 643 default: 644 break; 645 } 646 if (c[i] > 10) 647 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 648 649 if (c[i] > 11) 650 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 651 } 652 653 #pragma omp parallel 654 #pragma omp for simd 655 for (int i = 0; i < 10; i++) { 656 for (int j = 0; j < 10; j++) { 657 c[i] = a[i] + b[i]; 658 if (c[i] > 10) { 659 if (c[i] < 20) { 660 break; // OK 661 } 662 } 663 } 664 } 665 } 666 667 void test_loop_eh() { 668 const int N = 100; 669 float a[N], b[N], c[N]; 670 #pragma omp parallel 671 #pragma omp for simd 672 for (int i = 0; i < 10; i++) { 673 c[i] = a[i] + b[i]; 674 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}} 675 for (int j = 0; j < 10; ++j) { 676 if (a[i] > b[j]) 677 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 678 } 679 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 680 } 681 catch (float f) { 682 if (f > 0.1) 683 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 684 return; // expected-error {{cannot return from OpenMP region}} 685 } 686 switch (i) { 687 case 1: 688 b[i]++; 689 break; 690 default: 691 break; 692 } 693 for (int j = 0; j < 10; j++) { 694 if (c[i] > 10) 695 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 696 } 697 } 698 if (c[9] > 10) 699 throw c[9]; // OK 700 701 #pragma omp parallel 702 #pragma omp for simd 703 for (int i = 0; i < 10; ++i) { 704 struct S { 705 void g() { throw 0; } 706 }; 707 } 708 } 709 710 void test_loop_firstprivate_lastprivate() { 711 S s(4); 712 #pragma omp parallel 713 #pragma omp for simd lastprivate(s) firstprivate(s) 714 for (int i = 0; i < 16; ++i) 715 ; 716 } 717 718 void test_ordered() { 719 #pragma omp parallel 720 // expected-error@+1 2 {{unexpected OpenMP clause 'ordered' in directive '#pragma omp for simd'}} 721 #pragma omp for simd ordered ordered // expected-error {{directive '#pragma omp for simd' cannot contain more than one 'ordered' clause}} 722 for (int i = 0; i < 16; ++i) 723 ; 724 } 725 726 void test_nowait() { 727 #pragma omp parallel 728 #pragma omp for simd nowait nowait // expected-error {{directive '#pragma omp for simd' cannot contain more than one 'nowait' clause}} 729 for (int i = 0; i < 16; ++i) 730 ; 731 } 732
