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 static int sii; 6 // expected-note@+1 {{defined as threadprivate or thread local}} 7 #pragma omp threadprivate(sii) 8 static int globalii; 9 10 int test_iteration_spaces() { 11 const int N = 100; 12 float a[N], b[N], c[N]; 13 int ii, jj, kk; 14 float fii; 15 double dii; 16 #pragma omp target 17 #pragma omp teams 18 #pragma omp distribute simd 19 for (int i = 0; i < 10; i+=1) { 20 c[i] = a[i] + b[i]; 21 } 22 #pragma omp target 23 #pragma omp teams 24 #pragma omp distribute simd 25 for (char i = 0; i < 10; i++) { 26 c[i] = a[i] + b[i]; 27 } 28 #pragma omp target 29 #pragma omp teams 30 #pragma omp distribute simd 31 for (char i = 0; i < 10; i+='\1') { 32 c[i] = a[i] + b[i]; 33 } 34 #pragma omp target 35 #pragma omp teams 36 #pragma omp distribute simd 37 for (long long i = 0; i < 10; i++) { 38 c[i] = a[i] + b[i]; 39 } 40 #pragma omp target 41 #pragma omp teams 42 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}} 43 #pragma omp distribute simd 44 for (long long i = 0; i < 10; i+=1.5) { 45 c[i] = a[i] + b[i]; 46 } 47 #pragma omp target 48 #pragma omp teams 49 #pragma omp distribute simd 50 for (long long i = 0; i < 'z'; i+=1u) { 51 c[i] = a[i] + b[i]; 52 } 53 #pragma omp target 54 #pragma omp teams 55 // expected-error@+2 {{variable must be of integer or random access iterator type}} 56 #pragma omp distribute simd 57 for (float fi = 0; fi < 10.0; fi++) { 58 c[(int)fi] = a[(int)fi] + b[(int)fi]; 59 } 60 #pragma omp target 61 #pragma omp teams 62 // expected-error@+2 {{variable must be of integer or random access iterator type}} 63 #pragma omp distribute simd 64 for (double fi = 0; fi < 10.0; fi++) { 65 c[(int)fi] = a[(int)fi] + b[(int)fi]; 66 } 67 #pragma omp target 68 #pragma omp teams 69 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 70 #pragma omp distribute simd 71 for (int &ref = ii; ref < 10; ref++) { 72 } 73 #pragma omp target 74 #pragma omp teams 75 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 76 #pragma omp distribute simd 77 for (int i; i < 10; i++) 78 c[i] = a[i]; 79 80 #pragma omp target 81 #pragma omp teams 82 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 83 #pragma omp distribute simd 84 for (int i = 0, j = 0; i < 10; ++i) 85 c[i] = a[i]; 86 87 #pragma omp target 88 #pragma omp teams 89 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 90 #pragma omp distribute simd 91 for (;ii < 10; ++ii) 92 c[ii] = a[ii]; 93 94 #pragma omp target 95 #pragma omp teams 96 // expected-warning@+3 {{expression result unused}} 97 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 98 #pragma omp distribute simd 99 for (ii + 1;ii < 10; ++ii) 100 c[ii] = a[ii]; 101 102 #pragma omp target 103 #pragma omp teams 104 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 105 #pragma omp distribute simd 106 for (c[ii] = 0;ii < 10; ++ii) 107 c[ii] = a[ii]; 108 109 // Ok to skip parenthesises. 110 #pragma omp target 111 #pragma omp teams 112 #pragma omp distribute simd 113 for (((ii)) = 0;ii < 10; ++ii) 114 c[ii] = a[ii]; 115 116 #pragma omp target 117 #pragma omp teams 118 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 119 #pragma omp distribute simd 120 for (int i = 0; i; i++) 121 c[i] = a[i]; 122 123 #pragma omp target 124 #pragma omp teams 125 // expected-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 126 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}} 127 #pragma omp distribute simd 128 for (int i = 0; jj < kk; ii++) 129 c[i] = a[i]; 130 131 #pragma omp target 132 #pragma omp teams 133 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 134 #pragma omp distribute simd 135 for (int i = 0; !!i; i++) 136 c[i] = a[i]; 137 138 #pragma omp target 139 #pragma omp teams 140 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 141 #pragma omp distribute simd 142 for (int i = 0; i != 1; i++) 143 c[i] = a[i]; 144 145 #pragma omp target 146 #pragma omp teams 147 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 148 #pragma omp distribute simd 149 for (int i = 0; ; i++) 150 c[i] = a[i]; 151 152 // Ok. 153 #pragma omp target 154 #pragma omp teams 155 #pragma omp distribute simd 156 for (int i = 11; i > 10; i--) 157 c[i] = a[i]; 158 159 // Ok. 160 #pragma omp target 161 #pragma omp teams 162 #pragma omp distribute simd 163 for (int i = 0; i < 10; ++i) 164 c[i] = a[i]; 165 166 // Ok. 167 #pragma omp target 168 #pragma omp teams 169 #pragma omp distribute simd 170 for (ii = 0; ii < 10; ++ii) 171 c[ii] = a[ii]; 172 173 #pragma omp target 174 #pragma omp teams 175 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 176 #pragma omp distribute simd 177 for (ii = 0; ii < 10; ++jj) 178 c[ii] = a[jj]; 179 180 #pragma omp target 181 #pragma omp teams 182 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 183 #pragma omp distribute simd 184 for (ii = 0; ii < 10; ++ ++ ii) 185 c[ii] = a[ii]; 186 187 // Ok but undefined behavior (in general, cannot check that incr 188 // is really loop-invariant). 189 #pragma omp target 190 #pragma omp teams 191 #pragma omp distribute simd 192 for (ii = 0; ii < 10; ii = ii + ii) 193 c[ii] = a[ii]; 194 195 #pragma omp target 196 #pragma omp teams 197 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}} 198 #pragma omp distribute simd 199 for (ii = 0; ii < 10; ii = ii + 1.0f) 200 c[ii] = a[ii]; 201 202 // Ok - step was converted to integer type. 203 #pragma omp target 204 #pragma omp teams 205 #pragma omp distribute simd 206 for (ii = 0; ii < 10; ii = ii + (int)1.1f) 207 c[ii] = a[ii]; 208 209 #pragma omp target 210 #pragma omp teams 211 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 212 #pragma omp distribute simd 213 for (ii = 0; ii < 10; jj = ii + 2) 214 c[ii] = a[ii]; 215 216 #pragma omp target 217 #pragma omp teams 218 // expected-warning@+3 {{relational comparison result unused}} 219 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 220 #pragma omp distribute simd 221 for (ii = 0; ii < 10; jj > kk + 2) 222 c[ii] = a[ii]; 223 224 #pragma omp target 225 #pragma omp teams 226 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 227 #pragma omp distribute simd 228 for (ii = 0; ii < 10;) 229 c[ii] = a[ii]; 230 231 #pragma omp target 232 #pragma omp teams 233 // expected-warning@+3 {{expression result unused}} 234 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 235 #pragma omp distribute simd 236 for (ii = 0; ii < 10; !ii) 237 c[ii] = a[ii]; 238 239 #pragma omp target 240 #pragma omp teams 241 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 242 #pragma omp distribute simd 243 for (ii = 0; ii < 10; ii ? ++ii : ++jj) 244 c[ii] = a[ii]; 245 246 #pragma omp target 247 #pragma omp teams 248 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 249 #pragma omp distribute simd 250 for (ii = 0; ii < 10; ii = ii < 10) 251 c[ii] = a[ii]; 252 253 #pragma omp target 254 #pragma omp teams 255 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 256 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 257 #pragma omp distribute simd 258 for (ii = 0; ii < 10; ii = ii + 0) 259 c[ii] = a[ii]; 260 261 #pragma omp target 262 #pragma omp teams 263 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 264 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 265 #pragma omp distribute simd 266 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45)) 267 c[ii] = a[ii]; 268 269 #pragma omp target 270 #pragma omp teams 271 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 272 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 273 #pragma omp distribute simd 274 for (ii = 0; (ii) < 10; ii-=25) 275 c[ii] = a[ii]; 276 277 #pragma omp target 278 #pragma omp teams 279 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 280 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 281 #pragma omp distribute simd 282 for (ii = 0; (ii < 10); ii-=0) 283 c[ii] = a[ii]; 284 285 #pragma omp target 286 #pragma omp teams 287 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 288 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 289 #pragma omp distribute simd 290 for (ii = 0; ii > 10; (ii+=0)) 291 c[ii] = a[ii]; 292 293 #pragma omp target 294 #pragma omp teams 295 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 296 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 297 #pragma omp distribute simd 298 for (ii = 0; ii < 10; (ii) = (1-1)+(ii)) 299 c[ii] = a[ii]; 300 301 #pragma omp target 302 #pragma omp teams 303 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 304 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 305 #pragma omp distribute simd 306 for ((ii = 0); ii > 10; (ii-=0)) 307 c[ii] = a[ii]; 308 309 #pragma omp target 310 #pragma omp teams 311 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 312 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 313 #pragma omp distribute simd 314 for (ii = 0; (ii < 10); (ii-=0)) 315 c[ii] = a[ii]; 316 317 #pragma omp target 318 #pragma omp teams 319 // expected-note@+2 {{defined as private}} 320 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp distribute simd' directive may not be private, predetermined as linear}} 321 #pragma omp distribute simd private(ii) 322 for (ii = 0; ii < 10; ii++) 323 c[ii] = a[ii]; 324 325 #pragma omp target 326 #pragma omp teams 327 // expected-error@+1 {{unexpected OpenMP clause 'shared' in directive '#pragma omp distribute simd'}} 328 #pragma omp distribute simd shared(ii) 329 for (ii = 0; ii < 10; ii++) 330 c[ii] = a[ii]; 331 332 #pragma omp target 333 #pragma omp teams 334 #pragma omp distribute simd linear(ii) 335 for (ii = 0; ii < 10; ii++) 336 c[ii] = a[ii]; 337 338 #pragma omp target 339 #pragma omp teams 340 #pragma omp distribute simd lastprivate(ii) linear(jj) collapse(2) // expected-note {{defined as linear}} 341 for (ii = 0; ii < 10; ii++) 342 for (jj = 0; jj < 10; jj++) // expected-error {{loop iteration variable in the associated loop of 'omp distribute simd' directive may not be linear, predetermined as lastprivate}} 343 c[ii] = a[jj]; 344 345 346 #pragma omp parallel 347 { 348 #pragma omp target 349 #pragma omp teams 350 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp distribute simd' directive may not be threadprivate or thread local, predetermined as linear}} 351 #pragma omp distribute simd 352 for (sii = 0; sii < 10; sii+=1) 353 c[sii] = a[sii]; 354 } 355 356 #pragma omp parallel 357 { 358 #pragma omp target 359 #pragma omp teams 360 #pragma omp distribute simd 361 for (globalii = 0; globalii < 10; globalii+=1) 362 c[globalii] = a[globalii]; 363 } 364 365 #pragma omp parallel 366 { 367 #pragma omp target 368 #pragma omp teams 369 #pragma omp distribute simd collapse(2) 370 for (ii = 0; ii < 10; ii += 1) 371 for (globalii = 0; globalii < 10; globalii += 1) 372 c[globalii] += a[globalii] + ii; 373 } 374 375 #pragma omp target 376 #pragma omp teams 377 // expected-error@+2 {{statement after '#pragma omp distribute simd' must be a for loop}} 378 #pragma omp distribute simd 379 for (auto &item : a) { 380 item = item + 1; 381 } 382 383 #pragma omp target 384 #pragma omp teams 385 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 386 // expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}} 387 #pragma omp distribute simd 388 for (unsigned i = 9; i < 10; i--) { 389 c[i] = a[i] + b[i]; 390 } 391 392 int (*lb)[4] = nullptr; 393 #pragma omp target 394 #pragma omp teams 395 #pragma omp distribute simd 396 for (int (*p)[4] = lb; p < lb + 8; ++p) { 397 } 398 399 #pragma omp target 400 #pragma omp teams 401 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 402 #pragma omp distribute simd 403 for (int a{0}; a<10; ++a) { 404 } 405 406 return 0; 407 } 408 409 // Iterators allowed in openmp for-loops. 410 namespace std { 411 struct random_access_iterator_tag { }; 412 template <class Iter> struct iterator_traits { 413 typedef typename Iter::difference_type difference_type; 414 typedef typename Iter::iterator_category iterator_category; 415 }; 416 template <class Iter> 417 typename iterator_traits<Iter>::difference_type 418 distance(Iter first, Iter last) { return first - last; } 419 } 420 class Iter0 { 421 public: 422 Iter0() { } 423 Iter0(const Iter0 &) { } 424 Iter0 operator ++() { return *this; } 425 Iter0 operator --() { return *this; } 426 Iter0 operator + (int delta) { return *this; } 427 bool operator <(Iter0 a) { return true; } 428 }; 429 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}} 430 int operator -(Iter0 a, Iter0 b) { return 0; } 431 class Iter1 { 432 public: 433 Iter1(float f=0.0f, double d=0.0) { } 434 Iter1(const Iter1 &) { } 435 Iter1 operator ++() { return *this; } 436 Iter1 operator --() { return *this; } 437 bool operator <(Iter1 a) { return true; } 438 bool operator >=(Iter1 a) { return false; } 439 }; 440 class GoodIter { 441 public: 442 GoodIter() { } 443 GoodIter(const GoodIter &) { } 444 GoodIter(int fst, int snd) { } 445 GoodIter &operator =(const GoodIter &that) { return *this; } 446 GoodIter &operator =(const Iter0 &that) { return *this; } 447 GoodIter &operator +=(int x) { return *this; } 448 explicit GoodIter(void *) { } 449 GoodIter operator ++() { return *this; } 450 GoodIter operator --() { return *this; } 451 bool operator !() { return true; } 452 bool operator <(GoodIter a) { return true; } 453 bool operator <=(GoodIter a) { return true; } 454 bool operator >=(GoodIter a) { return false; } 455 typedef int difference_type; 456 typedef std::random_access_iterator_tag iterator_category; 457 }; 458 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 459 int operator -(GoodIter a, GoodIter b) { return 0; } 460 // expected-note@+1 2 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}} 461 GoodIter operator -(GoodIter a) { return a; } 462 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 463 GoodIter operator -(GoodIter a, int v) { return GoodIter(); } 464 GoodIter operator +(GoodIter a, int v) { return GoodIter(); } 465 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}} 466 GoodIter operator -(int v, GoodIter a) { return GoodIter(); } 467 GoodIter operator +(int v, GoodIter a) { return GoodIter(); } 468 469 int test_with_random_access_iterator() { 470 GoodIter begin, end; 471 Iter0 begin0, end0; 472 #pragma omp target 473 #pragma omp teams 474 #pragma omp distribute simd 475 for (GoodIter I = begin; I < end; ++I) 476 ++I; 477 #pragma omp target 478 #pragma omp teams 479 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 480 #pragma omp distribute simd 481 for (GoodIter &I = begin; I < end; ++I) 482 ++I; 483 #pragma omp target 484 #pragma omp teams 485 #pragma omp distribute simd 486 for (GoodIter I = begin; I >= end; --I) 487 ++I; 488 #pragma omp target 489 #pragma omp teams 490 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 491 #pragma omp distribute simd 492 for (GoodIter I(begin); I < end; ++I) 493 ++I; 494 #pragma omp target 495 #pragma omp teams 496 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 497 #pragma omp distribute simd 498 for (GoodIter I(nullptr); I < end; ++I) 499 ++I; 500 #pragma omp target 501 #pragma omp teams 502 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 503 #pragma omp distribute simd 504 for (GoodIter I(0); I < end; ++I) 505 ++I; 506 #pragma omp target 507 #pragma omp teams 508 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 509 #pragma omp distribute simd 510 for (GoodIter I(1,2); I < end; ++I) 511 ++I; 512 #pragma omp target 513 #pragma omp teams 514 #pragma omp distribute simd 515 for (begin = GoodIter(0); begin < end; ++begin) 516 ++begin; 517 #pragma omp target 518 #pragma omp teams 519 #pragma omp distribute simd 520 for (begin = GoodIter(1,2); begin < end; ++begin) 521 ++begin; 522 #pragma omp target 523 #pragma omp teams 524 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 525 #pragma omp distribute simd 526 for (++begin; begin < end; ++begin) 527 ++begin; 528 #pragma omp target 529 #pragma omp teams 530 #pragma omp distribute simd 531 for (begin = end; begin < end; ++begin) 532 ++begin; 533 #pragma omp target 534 #pragma omp teams 535 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 536 #pragma omp distribute simd 537 for (GoodIter I = begin; I - I; ++I) 538 ++I; 539 #pragma omp target 540 #pragma omp teams 541 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 542 #pragma omp distribute simd 543 for (GoodIter I = begin; begin < end; ++I) 544 ++I; 545 #pragma omp target 546 #pragma omp teams 547 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 548 #pragma omp distribute simd 549 for (GoodIter I = begin; !I; ++I) 550 ++I; 551 #pragma omp target 552 #pragma omp teams 553 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 554 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 555 #pragma omp distribute simd 556 for (GoodIter I = begin; I >= end; I = I + 1) 557 ++I; 558 #pragma omp target 559 #pragma omp teams 560 #pragma omp distribute simd 561 for (GoodIter I = begin; I >= end; I = I - 1) 562 ++I; 563 #pragma omp target 564 #pragma omp teams 565 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 566 #pragma omp distribute simd 567 for (GoodIter I = begin; I >= end; I = -I) 568 ++I; 569 #pragma omp target 570 #pragma omp teams 571 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 572 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 573 #pragma omp distribute simd 574 for (GoodIter I = begin; I >= end; I = 2 + I) 575 ++I; 576 #pragma omp target 577 #pragma omp teams 578 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 579 #pragma omp distribute simd 580 for (GoodIter I = begin; I >= end; I = 2 - I) 581 ++I; 582 #pragma omp target 583 #pragma omp teams 584 #pragma omp distribute simd 585 for (Iter0 I = begin0; I < end0; ++I) 586 ++I; 587 588 #pragma omp target 589 #pragma omp teams 590 // Initializer is constructor without params. 591 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 592 #pragma omp distribute simd 593 for (Iter0 I; I < end0; ++I) 594 ++I; 595 596 Iter1 begin1, end1; 597 #pragma omp target 598 #pragma omp teams 599 // expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 600 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 601 #pragma omp distribute simd 602 for (Iter1 I = begin1; I < end1; ++I) 603 ++I; 604 #pragma omp target 605 #pragma omp teams 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 distribute simd 609 for (Iter1 I = begin1; I >= end1; ++I) 610 ++I; 611 612 // Initializer is constructor with all default params. 613 #pragma omp target 614 #pragma omp teams 615 // expected-error@+4 {{invalid operands to binary expression ('Iter1' and 'float')}} 616 // expected-error@+3 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 617 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 618 #pragma omp distribute simd 619 for (Iter1 I; I < end1; ++I) { 620 } 621 622 return 0; 623 } 624 625 template <typename IT, int ST> class TC { 626 public: 627 int dotest_lt(IT begin, IT end) { 628 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 629 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 630 #pragma omp distribute simd 631 for (IT I = begin; I < end; I = I + ST) { 632 ++I; 633 } 634 #pragma omp target 635 #pragma omp teams 636 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 637 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 638 #pragma omp distribute simd 639 for (IT I = begin; I <= end; I += ST) { 640 ++I; 641 } 642 #pragma omp distribute simd 643 for (IT I = begin; I < end; ++I) { 644 ++I; 645 } 646 } 647 648 static IT step() { 649 return IT(ST); 650 } 651 }; 652 template <typename IT, int ST=0> int dotest_gt(IT begin, IT end) { 653 #pragma omp target 654 #pragma omp teams 655 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 656 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 657 #pragma omp distribute simd 658 for (IT I = begin; I >= end; I = I + ST) { 659 ++I; 660 } 661 #pragma omp target 662 #pragma omp teams 663 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 664 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 665 #pragma omp distribute simd 666 for (IT I = begin; I >= end; I += ST) { 667 ++I; 668 } 669 670 #pragma omp target 671 #pragma omp teams 672 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 673 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 674 #pragma omp distribute simd 675 for (IT I = begin; I >= end; ++I) { 676 ++I; 677 } 678 679 #pragma omp target 680 #pragma omp teams 681 #pragma omp distribute simd 682 for (IT I = begin; I < end; I+=TC<int,ST>::step()) { 683 ++I; 684 } 685 } 686 687 void test_with_template() { 688 GoodIter begin, end; 689 TC<GoodIter, 100> t1; 690 TC<GoodIter, -100> t2; 691 t1.dotest_lt(begin, end); 692 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}} 693 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}} 694 dotest_gt<unsigned, 10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, 10>' requested here}} 695 } 696 697 void test_loop_break() { 698 const int N = 100; 699 float a[N], b[N], c[N]; 700 #pragma omp target 701 #pragma omp teams 702 #pragma omp distribute simd 703 for (int i = 0; i < 10; i++) { 704 c[i] = a[i] + b[i]; 705 for (int j = 0; j < 10; ++j) { 706 if (a[i] > b[j]) 707 break; // OK in nested loop 708 } 709 switch(i) { 710 case 1: 711 b[i]++; 712 break; 713 default: 714 break; 715 } 716 if (c[i] > 10) 717 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 718 719 if (c[i] > 11) 720 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 721 } 722 723 #pragma omp target 724 #pragma omp teams 725 #pragma omp distribute simd 726 for (int i = 0; i < 10; i++) { 727 for (int j = 0; j < 10; j++) { 728 c[i] = a[i] + b[i]; 729 if (c[i] > 10) { 730 if (c[i] < 20) { 731 break; // OK 732 } 733 } 734 } 735 } 736 } 737 738 void test_loop_eh() { 739 const int N = 100; 740 float a[N], b[N], c[N]; 741 #pragma omp target 742 #pragma omp teams 743 #pragma omp distribute simd 744 for (int i = 0; i < 10; i++) { 745 c[i] = a[i] + b[i]; 746 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}} 747 for (int j = 0; j < 10; ++j) { 748 if (a[i] > b[j]) 749 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 750 } 751 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 752 } 753 catch (float f) { 754 if (f > 0.1) 755 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 756 return; // expected-error {{cannot return from OpenMP region}} 757 } 758 switch(i) { 759 case 1: 760 b[i]++; 761 break; 762 default: 763 break; 764 } 765 for (int j = 0; j < 10; j++) { 766 if (c[i] > 10) 767 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 768 } 769 } 770 if (c[9] > 10) 771 throw c[9]; // OK 772 773 #pragma omp target 774 #pragma omp teams 775 #pragma omp distribute simd 776 for (int i = 0; i < 10; ++i) { 777 struct S { 778 void g() { throw 0; } 779 }; 780 } 781 } 782 783