1// RUN: %clang_cc1 -fsyntax-only -fopenmp -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify %s 2 3class S { 4 int a; 5 S() : a(0) {} 6 7public: 8 S(int v) : a(v) {} 9 S(const S &s) : a(s.a) {} 10}; 11 12static int sii; 13// expected-note@+1 {{defined as threadprivate or thread local}} 14#pragma omp threadprivate(sii) 15static int globalii; 16 17// Currently, we cannot use "0" for global register variables. 18// register int reg0 __asm__("0"); 19int reg0; 20 21int test_iteration_spaces() { 22 const int N = 100; 23 float a[N], b[N], c[N]; 24 int ii, jj, kk; 25 float fii; 26 double dii; 27 register int reg; // expected-warning {{'register' storage class specifier is deprecated}} 28#pragma omp parallel 29#pragma omp taskloop 30 for (int i = 0; i < 10; i += 1) { 31 c[i] = a[i] + b[i]; 32 } 33#pragma omp parallel 34#pragma omp taskloop 35 for (char i = 0; i < 10; i++) { 36 c[i] = a[i] + b[i]; 37 } 38#pragma omp parallel 39#pragma omp taskloop 40 for (char i = 0; i < 10; i += '\1') { 41 c[i] = a[i] + b[i]; 42 } 43#pragma omp parallel 44#pragma omp taskloop 45 for (long long i = 0; i < 10; i++) { 46 c[i] = a[i] + b[i]; 47 } 48#pragma omp parallel 49// expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}} 50#pragma omp taskloop 51 for (long long i = 0; i < 10; i += 1.5) { 52 c[i] = a[i] + b[i]; 53 } 54#pragma omp parallel 55#pragma omp taskloop 56 for (long long i = 0; i < 'z'; i += 1u) { 57 c[i] = a[i] + b[i]; 58 } 59#pragma omp parallel 60// expected-error@+2 {{variable must be of integer or random access iterator type}} 61#pragma omp taskloop 62 for (float 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 {{variable must be of integer or random access iterator type}} 67#pragma omp taskloop 68 for (double fi = 0; fi < 10.0; fi++) { 69 c[(int)fi] = a[(int)fi] + b[(int)fi]; 70 } 71#pragma omp parallel 72// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 73#pragma omp taskloop 74 for (int &ref = ii; ref < 10; ref++) { 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 taskloop 79 for (int i; 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 taskloop 85 for (int i = 0, j = 0; i < 10; ++i) 86 c[i] = a[i]; 87 88#pragma omp parallel 89// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 90#pragma omp taskloop 91 for (; ii < 10; ++ii) 92 c[ii] = a[ii]; 93 94#pragma omp parallel 95// expected-warning@+3 {{expression result unused}} 96// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 97#pragma omp taskloop 98 for (ii + 1; ii < 10; ++ii) 99 c[ii] = a[ii]; 100 101#pragma omp parallel 102// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 103#pragma omp taskloop 104 for (c[ii] = 0; ii < 10; ++ii) 105 c[ii] = a[ii]; 106 107#pragma omp parallel 108// Ok to skip parenthesises. 109#pragma omp taskloop 110 for (((ii)) = 0; ii < 10; ++ii) 111 c[ii] = a[ii]; 112 113#pragma omp parallel 114// expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 115#pragma omp taskloop 116 for (int i = 0; i; i++) 117 c[i] = a[i]; 118 119#pragma omp parallel 120// expected-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 121// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}} 122#pragma omp taskloop 123 for (int i = 0; jj < kk; ii++) 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 taskloop 129 for (int i = 0; !!i; 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 taskloop 135 for (int i = 0; i != 1; i++) 136 c[i] = a[i]; 137 138#pragma omp parallel 139// expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 140#pragma omp taskloop 141 for (int i = 0;; i++) 142 c[i] = a[i]; 143 144#pragma omp parallel 145// Ok. 146#pragma omp taskloop 147 for (int i = 11; i > 10; i--) 148 c[i] = a[i]; 149 150#pragma omp parallel 151// Ok. 152#pragma omp taskloop 153 for (int i = 0; i < 10; ++i) 154 c[i] = a[i]; 155 156#pragma omp parallel 157// Ok. 158#pragma omp taskloop 159 for (ii = 0; ii < 10; ++ii) 160 c[ii] = a[ii]; 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 taskloop 165 for (ii = 0; ii < 10; ++jj) 166 c[ii] = a[jj]; 167 168#pragma omp parallel 169// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 170#pragma omp taskloop 171 for (ii = 0; ii < 10; ++++ii) 172 c[ii] = a[ii]; 173 174#pragma omp parallel 175// Ok but undefined behavior (in general, cannot check that incr 176// is really loop-invariant). 177#pragma omp taskloop 178 for (ii = 0; ii < 10; ii = ii + ii) 179 c[ii] = a[ii]; 180 181#pragma omp parallel 182// expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}} 183#pragma omp taskloop 184 for (ii = 0; ii < 10; ii = ii + 1.0f) 185 c[ii] = a[ii]; 186 187#pragma omp parallel 188// Ok - step was converted to integer type. 189#pragma omp taskloop 190 for (ii = 0; ii < 10; ii = ii + (int)1.1f) 191 c[ii] = a[ii]; 192 193#pragma omp parallel 194// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 195#pragma omp taskloop 196 for (ii = 0; ii < 10; jj = ii + 2) 197 c[ii] = a[ii]; 198 199#pragma omp parallel 200// expected-warning@+3 {{relational comparison result unused}} 201// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 202#pragma omp taskloop 203 for (ii = 0; ii<10; jj> kk + 2) 204 c[ii] = a[ii]; 205 206#pragma omp parallel 207// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 208#pragma omp taskloop 209 for (ii = 0; ii < 10;) 210 c[ii] = a[ii]; 211 212#pragma omp parallel 213// expected-warning@+3 {{expression result unused}} 214// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 215#pragma omp taskloop 216 for (ii = 0; ii < 10; !ii) 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 taskloop 222 for (ii = 0; ii < 10; ii ? ++ii : ++jj) 223 c[ii] = a[ii]; 224 225#pragma omp parallel 226// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 227#pragma omp taskloop 228 for (ii = 0; ii < 10; ii = ii < 10) 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 taskloop 235 for (ii = 0; ii < 10; ii = ii + 0) 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 taskloop 242 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45)) 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 taskloop 249 for (ii = 0; (ii) < 10; ii -= 25) 250 c[ii] = a[ii]; 251 252#pragma omp parallel 253// expected-note@+3 {{loop step is expected to be positive due to this condition}} 254// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 255#pragma omp taskloop 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 negative due to this condition}} 261// expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 262#pragma omp taskloop 263 for (ii = 0; ii > 10; (ii += 0)) 264 c[ii] = a[ii]; 265 266#pragma omp parallel 267// expected-note@+3 {{loop step is expected to be positive due to this condition}} 268// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 269#pragma omp taskloop 270 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii)) 271 c[ii] = a[ii]; 272 273#pragma omp parallel 274// expected-note@+3 {{loop step is expected to be negative due to this condition}} 275// expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 276#pragma omp taskloop 277 for ((ii = 0); ii > 10; (ii -= 0)) 278 c[ii] = a[ii]; 279 280#pragma omp parallel 281// expected-note@+3 {{loop step is expected to be positive due to this condition}} 282// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 283#pragma omp taskloop 284 for (ii = 0; (ii < 10); (ii -= 0)) 285 c[ii] = a[ii]; 286 287#pragma omp parallel 288// expected-note@+2 {{defined as firstprivate}} 289// expected-error@+2 {{loop iteration variable in the associated loop of 'omp taskloop' directive may not be firstprivate, predetermined as private}} 290#pragma omp taskloop firstprivate(ii) 291 for (ii = 0; ii < 10; ii++) 292 c[ii] = a[ii]; 293 294#pragma omp parallel 295// expected-error@+2 {{unexpected OpenMP clause 'linear' in directive '#pragma omp taskloop'}} 296// expected-note@+1 {{defined as linear}} 297#pragma omp taskloop linear(ii) 298// expected-error@+1 {{loop iteration variable in the associated loop of 'omp taskloop' directive may not be linear, predetermined as private}} 299 for (ii = 0; ii < 10; ii++) 300 c[ii] = a[ii]; 301 302#pragma omp parallel 303#pragma omp taskloop private(ii) 304 for (ii = 0; ii < 10; ii++) 305 c[ii] = a[ii]; 306 307#pragma omp parallel 308#pragma omp taskloop lastprivate(ii) 309 for (ii = 0; ii < 10; ii++) 310 c[ii] = a[ii]; 311 312#pragma omp parallel 313 { 314// expected-error@+2 {{loop iteration variable in the associated loop of 'omp taskloop' directive may not be threadprivate or thread local, predetermined as private}} 315#pragma omp taskloop 316 for (sii = 0; sii < 10; sii += 1) 317 c[sii] = a[sii]; 318 } 319 320#pragma omp parallel 321 { 322#pragma omp taskloop 323 for (reg0 = 0; reg0 < 10; reg0 += 1) 324 c[reg0] = a[reg0]; 325 } 326 327#pragma omp parallel 328 { 329#pragma omp taskloop 330 for (reg = 0; reg < 10; reg += 1) 331 c[reg] = a[reg]; 332 } 333 334#pragma omp parallel 335 { 336#pragma omp taskloop 337 for (globalii = 0; globalii < 10; globalii += 1) 338 c[globalii] = a[globalii]; 339 } 340 341#pragma omp parallel 342 { 343#pragma omp taskloop collapse(2) 344 for (ii = 0; ii < 10; ii += 1) 345 for (globalii = 0; globalii < 10; globalii += 1) 346 c[globalii] += a[globalii] + ii; 347 } 348 349#pragma omp parallel 350// expected-error@+2 {{statement after '#pragma omp taskloop' must be a for loop}} 351#pragma omp taskloop 352 for (auto &item : a) { 353 item = item + 1; 354 } 355 356#pragma omp parallel 357// expected-note@+3 {{loop step is expected to be positive due to this condition}} 358// expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}} 359#pragma omp taskloop 360 for (unsigned i = 9; i < 10; i--) { 361 c[i] = a[i] + b[i]; 362 } 363 364 int(*lb)[4] = nullptr; 365#pragma omp parallel 366#pragma omp taskloop 367 for (int(*p)[4] = lb; p < lb + 8; ++p) { 368 } 369 370#pragma omp parallel 371// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 372#pragma omp taskloop 373 for (int a{0}; a < 10; ++a) { 374 } 375 376 return 0; 377} 378 379// Iterators allowed in openmp for-loops. 380namespace std { 381struct random_access_iterator_tag {}; 382template <class Iter> 383struct iterator_traits { 384 typedef typename Iter::difference_type difference_type; 385 typedef typename Iter::iterator_category iterator_category; 386}; 387template <class Iter> 388typename iterator_traits<Iter>::difference_type 389distance(Iter first, Iter last) { return first - last; } 390} 391class Iter0 { 392public: 393 Iter0() {} 394 Iter0(const Iter0 &) {} 395 Iter0 operator++() { return *this; } 396 Iter0 operator--() { return *this; } 397 bool operator<(Iter0 a) { return true; } 398}; 399// expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}} 400// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}} 401int operator-(Iter0 a, Iter0 b) { return 0; } 402class Iter1 { 403public: 404 Iter1(float f = 0.0f, double d = 0.0) {} 405 Iter1(const Iter1 &) {} 406 Iter1 operator++() { return *this; } 407 Iter1 operator--() { return *this; } 408 bool operator<(Iter1 a) { return true; } 409 bool operator>=(Iter1 a) { return false; } 410}; 411class GoodIter { 412public: 413 GoodIter() {} 414 GoodIter(const GoodIter &) {} 415 GoodIter(int fst, int snd) {} 416 GoodIter &operator=(const GoodIter &that) { return *this; } 417 GoodIter &operator=(const Iter0 &that) { return *this; } 418 GoodIter &operator+=(int x) { return *this; } 419 GoodIter &operator-=(int x) { return *this; } 420 explicit GoodIter(void *) {} 421 GoodIter operator++() { return *this; } 422 GoodIter operator--() { return *this; } 423 bool operator!() { return true; } 424 bool operator<(GoodIter a) { return true; } 425 bool operator<=(GoodIter a) { return true; } 426 bool operator>=(GoodIter a) { return false; } 427 typedef int difference_type; 428 typedef std::random_access_iterator_tag iterator_category; 429}; 430// expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}} 431// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 432int operator-(GoodIter a, GoodIter b) { return 0; } 433// expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}} 434GoodIter operator-(GoodIter a) { return a; } 435// expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}} 436// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 437GoodIter operator-(GoodIter a, int v) { return GoodIter(); } 438// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}} 439GoodIter operator+(GoodIter a, int v) { return GoodIter(); } 440// expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}} 441// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}} 442GoodIter operator-(int v, GoodIter a) { return GoodIter(); } 443// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}} 444GoodIter operator+(int v, GoodIter a) { return GoodIter(); } 445 446int test_with_random_access_iterator() { 447 GoodIter begin, end; 448 Iter0 begin0, end0; 449#pragma omp parallel 450#pragma omp taskloop 451 for (GoodIter I = begin; I < end; ++I) 452 ++I; 453#pragma omp parallel 454// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 455#pragma omp taskloop 456 for (GoodIter &I = begin; I < end; ++I) 457 ++I; 458#pragma omp parallel 459#pragma omp taskloop 460 for (GoodIter I = begin; I >= end; --I) 461 ++I; 462#pragma omp parallel 463// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 464#pragma omp taskloop 465 for (GoodIter I(begin); I < end; ++I) 466 ++I; 467#pragma omp parallel 468// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 469#pragma omp taskloop 470 for (GoodIter I(nullptr); I < end; ++I) 471 ++I; 472#pragma omp parallel 473// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 474#pragma omp taskloop 475 for (GoodIter I(0); I < end; ++I) 476 ++I; 477#pragma omp parallel 478// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 479#pragma omp taskloop 480 for (GoodIter I(1, 2); I < end; ++I) 481 ++I; 482#pragma omp parallel 483#pragma omp taskloop 484 for (begin = GoodIter(0); begin < end; ++begin) 485 ++begin; 486// expected-error@+4 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}} 487// expected-error@+3 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 488#pragma omp parallel 489#pragma omp taskloop 490 for (begin = begin0; begin < end; ++begin) 491 ++begin; 492#pragma omp parallel 493// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 494#pragma omp taskloop 495 for (++begin; begin < end; ++begin) 496 ++begin; 497#pragma omp parallel 498#pragma omp taskloop 499 for (begin = end; begin < end; ++begin) 500 ++begin; 501#pragma omp parallel 502// expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 503#pragma omp taskloop 504 for (GoodIter I = begin; I - I; ++I) 505 ++I; 506#pragma omp parallel 507// expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 508#pragma omp taskloop 509 for (GoodIter I = begin; begin < end; ++I) 510 ++I; 511#pragma omp parallel 512// expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 513#pragma omp taskloop 514 for (GoodIter I = begin; !I; ++I) 515 ++I; 516#pragma omp parallel 517// expected-note@+3 {{loop step is expected to be negative due to this condition}} 518// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 519#pragma omp taskloop 520 for (GoodIter I = begin; I >= end; I = I + 1) 521 ++I; 522#pragma omp parallel 523#pragma omp taskloop 524 for (GoodIter I = begin; I >= end; I = I - 1) 525 ++I; 526#pragma omp parallel 527// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 528#pragma omp taskloop 529 for (GoodIter I = begin; I >= end; I = -I) 530 ++I; 531#pragma omp parallel 532// expected-note@+3 {{loop step is expected to be negative due to this condition}} 533// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 534#pragma omp taskloop 535 for (GoodIter I = begin; I >= end; I = 2 + I) 536 ++I; 537#pragma omp parallel 538// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 539#pragma omp taskloop 540 for (GoodIter I = begin; I >= end; I = 2 - I) 541 ++I; 542// In the following example, we cannot update the loop variable using '+=' 543// expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}} 544#pragma omp parallel 545#pragma omp taskloop 546 for (Iter0 I = begin0; I < end0; ++I) 547 ++I; 548#pragma omp parallel 549// Initializer is constructor without params. 550// expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}} 551// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 552#pragma omp taskloop 553 for (Iter0 I; I < end0; ++I) 554 ++I; 555 Iter1 begin1, end1; 556// expected-error@+4 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 557// expected-error@+3 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 558#pragma omp parallel 559#pragma omp taskloop 560 for (Iter1 I = begin1; I < end1; ++I) 561 ++I; 562#pragma omp parallel 563// expected-note@+3 {{loop step is expected to be negative due to this condition}} 564// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 565#pragma omp taskloop 566 for (Iter1 I = begin1; I >= end1; ++I) 567 ++I; 568#pragma omp parallel 569// expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'float')}} 570// expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 571// Initializer is constructor with all default params. 572// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 573#pragma omp taskloop 574 for (Iter1 I; I < end1; ++I) { 575 } 576 return 0; 577} 578 579template <typename IT, int ST> 580class TC { 581public: 582 int dotest_lt(IT begin, IT end) { 583#pragma omp parallel 584// expected-note@+3 {{loop step is expected to be positive due to this condition}} 585// expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 586#pragma omp taskloop 587 for (IT I = begin; I < end; I = I + ST) { 588 ++I; 589 } 590#pragma omp parallel 591// expected-note@+3 {{loop step is expected to be positive due to this condition}} 592// expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 593#pragma omp taskloop 594 for (IT I = begin; I <= end; I += ST) { 595 ++I; 596 } 597#pragma omp parallel 598#pragma omp taskloop 599 for (IT I = begin; I < end; ++I) { 600 ++I; 601 } 602 } 603 604 static IT step() { 605 return IT(ST); 606 } 607}; 608template <typename IT, int ST = 0> 609int dotest_gt(IT begin, IT end) { 610#pragma omp parallel 611// expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 612// expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 613#pragma omp taskloop 614 for (IT I = begin; I >= end; I = I + ST) { 615 ++I; 616 } 617#pragma omp parallel 618// expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 619// expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 620#pragma omp taskloop 621 for (IT I = begin; I >= end; I += ST) { 622 ++I; 623 } 624 625#pragma omp parallel 626// expected-note@+3 {{loop step is expected to be negative due to this condition}} 627// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 628#pragma omp taskloop 629 for (IT I = begin; I >= end; ++I) { 630 ++I; 631 } 632 633#pragma omp parallel 634#pragma omp taskloop 635 for (IT I = begin; I < end; I += TC<int, ST>::step()) { 636 ++I; 637 } 638} 639 640void test_with_template() { 641 GoodIter begin, end; 642 TC<GoodIter, 100> t1; 643 TC<GoodIter, -100> t2; 644 t1.dotest_lt(begin, end); 645 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}} 646 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}} 647 dotest_gt<unsigned, -10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, -10>' requested here}} 648} 649 650void test_loop_break() { 651 const int N = 100; 652 float a[N], b[N], c[N]; 653#pragma omp parallel 654#pragma omp taskloop 655 for (int i = 0; i < 10; i++) { 656 c[i] = a[i] + b[i]; 657 for (int j = 0; j < 10; ++j) { 658 if (a[i] > b[j]) 659 break; // OK in nested loop 660 } 661 switch (i) { 662 case 1: 663 b[i]++; 664 break; 665 default: 666 break; 667 } 668 if (c[i] > 10) 669 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 670 671 if (c[i] > 11) 672 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 673 } 674 675#pragma omp parallel 676#pragma omp taskloop 677 for (int i = 0; i < 10; i++) { 678 for (int j = 0; j < 10; j++) { 679 c[i] = a[i] + b[i]; 680 if (c[i] > 10) { 681 if (c[i] < 20) { 682 break; // OK 683 } 684 } 685 } 686 } 687} 688 689void test_loop_eh() { 690 const int N = 100; 691 float a[N], b[N], c[N]; 692#pragma omp parallel 693#pragma omp taskloop 694 for (int i = 0; i < 10; i++) { 695 c[i] = a[i] + b[i]; 696 try { 697 for (int j = 0; j < 10; ++j) { 698 if (a[i] > b[j]) 699 throw a[i]; 700 } 701 throw a[i]; 702 } catch (float f) { 703 if (f > 0.1) 704 throw a[i]; 705 return; // expected-error {{cannot return from OpenMP region}} 706 } 707 switch (i) { 708 case 1: 709 b[i]++; 710 break; 711 default: 712 break; 713 } 714 for (int j = 0; j < 10; j++) { 715 if (c[i] > 10) 716 throw c[i]; 717 } 718 } 719 if (c[9] > 10) 720 throw c[9]; // OK 721 722#pragma omp parallel 723#pragma omp taskloop 724 for (int i = 0; i < 10; ++i) { 725 struct S { 726 void g() { throw 0; } 727 }; 728 } 729} 730 731void test_loop_firstprivate_lastprivate() { 732 S s(4); 733#pragma omp parallel 734#pragma omp taskloop lastprivate(s) firstprivate(s) 735 for (int i = 0; i < 16; ++i) 736 ; 737} 738 739