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 for simd 22 for (int i = 0; i < 10; i += 1) { 23 c[i] = a[i] + b[i]; 24 } 25 #pragma omp parallel for simd 26 for (char i = 0; i < 10; i++) { 27 c[i] = a[i] + b[i]; 28 } 29 #pragma omp parallel for simd 30 for (char i = 0; i < 10; i += '\1') { 31 c[i] = a[i] + b[i]; 32 } 33 #pragma omp parallel for simd 34 for (long long i = 0; i < 10; i++) { 35 c[i] = a[i] + b[i]; 36 } 37 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}} 38 #pragma omp parallel for simd 39 for (long long i = 0; i < 10; i += 1.5) { 40 c[i] = a[i] + b[i]; 41 } 42 #pragma omp parallel for simd 43 for (long long i = 0; i < 'z'; i += 1u) { 44 c[i] = a[i] + b[i]; 45 } 46 // expected-error@+2 {{variable must be of integer or random access iterator type}} 47 #pragma omp parallel for simd 48 for (float fi = 0; fi < 10.0; fi++) { 49 c[(int)fi] = a[(int)fi] + b[(int)fi]; 50 } 51 // expected-error@+2 {{variable must be of integer or random access iterator type}} 52 #pragma omp parallel for simd 53 for (double fi = 0; fi < 10.0; fi++) { 54 c[(int)fi] = a[(int)fi] + b[(int)fi]; 55 } 56 // expected-error@+2 {{variable must be of integer or random access iterator type}} 57 #pragma omp parallel for simd 58 for (int &ref = ii; ref < 10; ref++) { 59 } 60 // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} 61 #pragma omp parallel for simd 62 for (int i; i < 10; i++) 63 c[i] = a[i]; 64 65 // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} 66 #pragma omp parallel for simd 67 for (int i = 0, j = 0; i < 10; ++i) 68 c[i] = a[i]; 69 70 // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} 71 #pragma omp parallel for simd 72 for (; ii < 10; ++ii) 73 c[ii] = a[ii]; 74 75 // expected-warning@+3 {{expression result unused}} 76 // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} 77 #pragma omp parallel for simd 78 for (ii + 1; ii < 10; ++ii) 79 c[ii] = a[ii]; 80 81 // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} 82 #pragma omp parallel for simd 83 for (c[ii] = 0; ii < 10; ++ii) 84 c[ii] = a[ii]; 85 86 // Ok to skip parenthesises. 87 #pragma omp parallel for simd 88 for (((ii)) = 0; ii < 10; ++ii) 89 c[ii] = a[ii]; 90 91 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 92 #pragma omp parallel for simd 93 for (int i = 0; i; i++) 94 c[i] = a[i]; 95 96 // expected-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 97 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}} 98 #pragma omp parallel for simd 99 for (int i = 0; jj < kk; ii++) 100 c[i] = a[i]; 101 102 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 103 #pragma omp parallel for simd 104 for (int i = 0; !!i; i++) 105 c[i] = a[i]; 106 107 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 108 #pragma omp parallel for simd 109 for (int i = 0; i != 1; i++) 110 c[i] = a[i]; 111 112 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 113 #pragma omp parallel for simd 114 for (int i = 0;; i++) 115 c[i] = a[i]; 116 117 // Ok. 118 #pragma omp parallel for simd 119 for (int i = 11; i > 10; i--) 120 c[i] = a[i]; 121 122 // Ok. 123 #pragma omp parallel for simd 124 for (int i = 0; i < 10; ++i) 125 c[i] = a[i]; 126 127 // Ok. 128 #pragma omp parallel for simd 129 for (ii = 0; ii < 10; ++ii) 130 c[ii] = a[ii]; 131 132 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 133 #pragma omp parallel for simd 134 for (ii = 0; ii < 10; ++jj) 135 c[ii] = a[jj]; 136 137 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 138 #pragma omp parallel for simd 139 for (ii = 0; ii < 10; ++++ii) 140 c[ii] = a[ii]; 141 142 // Ok but undefined behavior (in general, cannot check that incr 143 // is really loop-invariant). 144 #pragma omp parallel for simd 145 for (ii = 0; ii < 10; ii = ii + ii) 146 c[ii] = a[ii]; 147 148 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}} 149 #pragma omp parallel for simd 150 for (ii = 0; ii < 10; ii = ii + 1.0f) 151 c[ii] = a[ii]; 152 153 // Ok - step was converted to integer type. 154 #pragma omp parallel for simd 155 for (ii = 0; ii < 10; ii = ii + (int)1.1f) 156 c[ii] = a[ii]; 157 158 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 159 #pragma omp parallel for simd 160 for (ii = 0; ii < 10; jj = ii + 2) 161 c[ii] = a[ii]; 162 163 // expected-warning@+3 {{relational comparison result unused}} 164 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 165 #pragma omp parallel for simd 166 for (ii = 0; ii<10; jj> kk + 2) 167 c[ii] = a[ii]; 168 169 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 170 #pragma omp parallel for simd 171 for (ii = 0; ii < 10;) 172 c[ii] = a[ii]; 173 174 // expected-warning@+3 {{expression result unused}} 175 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 176 #pragma omp parallel for simd 177 for (ii = 0; ii < 10; !ii) 178 c[ii] = a[ii]; 179 180 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 181 #pragma omp parallel for simd 182 for (ii = 0; ii < 10; ii ? ++ii : ++jj) 183 c[ii] = a[ii]; 184 185 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 186 #pragma omp parallel for simd 187 for (ii = 0; ii < 10; ii = ii < 10) 188 c[ii] = a[ii]; 189 190 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 191 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 192 #pragma omp parallel for simd 193 for (ii = 0; ii < 10; ii = ii + 0) 194 c[ii] = a[ii]; 195 196 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 197 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 198 #pragma omp parallel for simd 199 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45)) 200 c[ii] = a[ii]; 201 202 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 203 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 204 #pragma omp parallel for simd 205 for (ii = 0; (ii) < 10; ii -= 25) 206 c[ii] = a[ii]; 207 208 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 209 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 210 #pragma omp parallel for simd 211 for (ii = 0; (ii < 10); ii -= 0) 212 c[ii] = a[ii]; 213 214 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 215 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 216 #pragma omp parallel for simd 217 for (ii = 0; ii > 10; (ii += 0)) 218 c[ii] = a[ii]; 219 220 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 221 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 222 #pragma omp parallel for simd 223 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii)) 224 c[ii] = a[ii]; 225 226 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 227 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 228 #pragma omp parallel for simd 229 for ((ii = 0); ii > 10; (ii -= 0)) 230 c[ii] = a[ii]; 231 232 // 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 parallel for simd 235 for (ii = 0; (ii < 10); (ii -= 0)) 236 c[ii] = a[ii]; 237 238 // expected-note@+2 {{defined as firstprivate}} 239 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be firstprivate, predetermined as linear}} 240 #pragma omp parallel for simd firstprivate(ii) 241 for (ii = 0; ii < 10; ii++) 242 c[ii] = a[ii]; 243 244 #pragma omp parallel for simd linear(ii) 245 for (ii = 0; ii < 10; ii++) 246 c[ii] = a[ii]; 247 248 // expected-note@+2 {{defined as private}} 249 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be private, predetermined as linear}} 250 #pragma omp parallel for simd private(ii) 251 for (ii = 0; ii < 10; ii++) 252 c[ii] = a[ii]; 253 254 // expected-note@+2 {{defined as lastprivate}} 255 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be lastprivate, predetermined as linear}} 256 #pragma omp parallel for simd lastprivate(ii) 257 for (ii = 0; ii < 10; ii++) 258 c[ii] = a[ii]; 259 260 { 261 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be threadprivate or thread local, predetermined as linear}} 262 #pragma omp parallel for simd 263 for (sii = 0; sii < 10; sii += 1) 264 c[sii] = a[sii]; 265 } 266 267 // expected-error@+2 {{statement after '#pragma omp parallel for simd' must be a for loop}} 268 #pragma omp parallel for simd 269 for (auto &item : a) { 270 item = item + 1; 271 } 272 273 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 274 // expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}} 275 #pragma omp parallel for simd 276 for (unsigned i = 9; i < 10; i--) { 277 c[i] = a[i] + b[i]; 278 } 279 280 int(*lb)[4] = nullptr; 281 #pragma omp parallel for simd 282 for (int(*p)[4] = lb; p < lb + 8; ++p) { 283 } 284 285 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 286 #pragma omp parallel for simd 287 for (int a{0}; a < 10; ++a) { 288 } 289 290 return 0; 291 } 292 293 // Iterators allowed in openmp for-loops. 294 namespace std { 295 struct random_access_iterator_tag {}; 296 template <class Iter> 297 struct iterator_traits { 298 typedef typename Iter::difference_type difference_type; 299 typedef typename Iter::iterator_category iterator_category; 300 }; 301 template <class Iter> 302 typename iterator_traits<Iter>::difference_type 303 distance(Iter first, Iter last) { return first - last; } 304 } 305 class Iter0 { 306 public: 307 Iter0() {} 308 Iter0(const Iter0 &) {} 309 Iter0 operator++() { return *this; } 310 Iter0 operator--() { return *this; } 311 bool operator<(Iter0 a) { return true; } 312 }; 313 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}} 314 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}} 315 int operator-(Iter0 a, Iter0 b) { return 0; } 316 class Iter1 { 317 public: 318 Iter1(float f = 0.0f, double d = 0.0) {} 319 Iter1(const Iter1 &) {} 320 Iter1 operator++() { return *this; } 321 Iter1 operator--() { return *this; } 322 bool operator<(Iter1 a) { return true; } 323 bool operator>=(Iter1 a) { return false; } 324 }; 325 class GoodIter { 326 public: 327 GoodIter() {} 328 GoodIter(const GoodIter &) {} 329 GoodIter(int fst, int snd) {} 330 GoodIter &operator=(const GoodIter &that) { return *this; } 331 GoodIter &operator=(const Iter0 &that) { return *this; } 332 GoodIter &operator+=(int x) { return *this; } 333 explicit GoodIter(void *) {} 334 GoodIter operator++() { return *this; } 335 GoodIter operator--() { return *this; } 336 bool operator!() { return true; } 337 bool operator<(GoodIter a) { return true; } 338 bool operator<=(GoodIter a) { return true; } 339 bool operator>=(GoodIter a) { return false; } 340 typedef int difference_type; 341 typedef std::random_access_iterator_tag iterator_category; 342 }; 343 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}} 344 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 345 int operator-(GoodIter a, GoodIter b) { return 0; } 346 // expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}} 347 GoodIter operator-(GoodIter a) { return a; } 348 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}} 349 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 350 GoodIter operator-(GoodIter a, int v) { return GoodIter(); } 351 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}} 352 GoodIter operator+(GoodIter a, int v) { return GoodIter(); } 353 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}} 354 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}} 355 GoodIter operator-(int v, GoodIter a) { return GoodIter(); } 356 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}} 357 GoodIter operator+(int v, GoodIter a) { return GoodIter(); } 358 359 int test_with_random_access_iterator() { 360 GoodIter begin, end; 361 Iter0 begin0, end0; 362 #pragma omp parallel for simd 363 for (GoodIter I = begin; I < end; ++I) 364 ++I; 365 // expected-error@+2 {{variable must be of integer or random access iterator type}} 366 #pragma omp parallel for simd 367 for (GoodIter &I = begin; I < end; ++I) 368 ++I; 369 #pragma omp parallel for simd 370 for (GoodIter I = begin; I >= end; --I) 371 ++I; 372 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 373 #pragma omp parallel for simd 374 for (GoodIter I(begin); I < end; ++I) 375 ++I; 376 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 377 #pragma omp parallel for simd 378 for (GoodIter I(nullptr); I < end; ++I) 379 ++I; 380 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 381 #pragma omp parallel for simd 382 for (GoodIter I(0); I < end; ++I) 383 ++I; 384 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 385 #pragma omp parallel for simd 386 for (GoodIter I(1, 2); I < end; ++I) 387 ++I; 388 #pragma omp parallel for simd 389 for (begin = GoodIter(0); begin < end; ++begin) 390 ++begin; 391 // expected-error@+3 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}} 392 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 393 #pragma omp parallel for simd 394 for (begin = begin0; begin < end; ++begin) 395 ++begin; 396 // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} 397 #pragma omp parallel for simd 398 for (++begin; begin < end; ++begin) 399 ++begin; 400 #pragma omp parallel for simd 401 for (begin = end; begin < end; ++begin) 402 ++begin; 403 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 404 #pragma omp parallel for simd 405 for (GoodIter I = begin; I - I; ++I) 406 ++I; 407 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 408 #pragma omp parallel for simd 409 for (GoodIter I = begin; begin < end; ++I) 410 ++I; 411 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 412 #pragma omp parallel for simd 413 for (GoodIter I = begin; !I; ++I) 414 ++I; 415 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 416 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 417 #pragma omp parallel for simd 418 for (GoodIter I = begin; I >= end; I = I + 1) 419 ++I; 420 #pragma omp parallel for simd 421 for (GoodIter I = begin; I >= end; I = I - 1) 422 ++I; 423 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 424 #pragma omp parallel for simd 425 for (GoodIter I = begin; I >= end; I = -I) 426 ++I; 427 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 428 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 429 #pragma omp parallel for simd 430 for (GoodIter I = begin; I >= end; I = 2 + I) 431 ++I; 432 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 433 #pragma omp parallel for simd 434 for (GoodIter I = begin; I >= end; I = 2 - I) 435 ++I; 436 // expected-error@+2 {{invalid operands to binary expression ('Iter0' and 'int')}} 437 #pragma omp parallel for simd 438 for (Iter0 I = begin0; I < end0; ++I) 439 ++I; 440 // Initializer is constructor without params. 441 // expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}} 442 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 443 #pragma omp parallel for simd 444 for (Iter0 I; I < end0; ++I) 445 ++I; 446 Iter1 begin1, end1; 447 // expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 448 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 449 #pragma omp parallel for simd 450 for (Iter1 I = begin1; I < end1; ++I) 451 ++I; 452 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 453 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 454 #pragma omp parallel for simd 455 for (Iter1 I = begin1; I >= end1; ++I) 456 ++I; 457 // expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 458 // expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 459 // Initializer is constructor with all default params. 460 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 461 #pragma omp parallel for simd 462 for (Iter1 I; I < end1; ++I) { 463 } 464 return 0; 465 } 466 467 template <typename IT, int ST> 468 class TC { 469 public: 470 int dotest_lt(IT begin, IT end) { 471 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 472 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 473 #pragma omp parallel for simd 474 for (IT I = begin; I < end; I = I + ST) { 475 ++I; 476 } 477 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 478 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 479 #pragma omp parallel for simd 480 for (IT I = begin; I <= end; I += ST) { 481 ++I; 482 } 483 #pragma omp parallel for simd 484 for (IT I = begin; I < end; ++I) { 485 ++I; 486 } 487 } 488 489 static IT step() { 490 return IT(ST); 491 } 492 }; 493 template <typename IT, int ST = 0> 494 int dotest_gt(IT begin, IT end) { 495 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 496 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 497 #pragma omp parallel for simd 498 for (IT I = begin; I >= end; I = I + ST) { 499 ++I; 500 } 501 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 502 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 503 #pragma omp parallel for simd 504 for (IT I = begin; I >= end; I += ST) { 505 ++I; 506 } 507 508 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 509 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 510 #pragma omp parallel for simd 511 for (IT I = begin; I >= end; ++I) { 512 ++I; 513 } 514 515 #pragma omp parallel for simd 516 for (IT I = begin; I < end; I += TC<int, ST>::step()) { 517 ++I; 518 } 519 } 520 521 void test_with_template() { 522 GoodIter begin, end; 523 TC<GoodIter, 100> t1; 524 TC<GoodIter, -100> t2; 525 t1.dotest_lt(begin, end); 526 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}} 527 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}} 528 dotest_gt<unsigned, -10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, -10>' requested here}} 529 } 530 531 void test_loop_break() { 532 const int N = 100; 533 float a[N], b[N], c[N]; 534 #pragma omp parallel for simd 535 for (int i = 0; i < 10; i++) { 536 c[i] = a[i] + b[i]; 537 for (int j = 0; j < 10; ++j) { 538 if (a[i] > b[j]) 539 break; // OK in nested loop 540 } 541 switch (i) { 542 case 1: 543 b[i]++; 544 break; 545 default: 546 break; 547 } 548 if (c[i] > 10) 549 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 550 551 if (c[i] > 11) 552 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 553 } 554 555 #pragma omp parallel for simd 556 for (int i = 0; i < 10; i++) { 557 for (int j = 0; j < 10; j++) { 558 c[i] = a[i] + b[i]; 559 if (c[i] > 10) { 560 if (c[i] < 20) { 561 break; // OK 562 } 563 } 564 } 565 } 566 } 567 568 void test_loop_eh() { 569 const int N = 100; 570 float a[N], b[N], c[N]; 571 #pragma omp parallel for simd 572 for (int i = 0; i < 10; i++) { 573 c[i] = a[i] + b[i]; 574 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}} 575 for (int j = 0; j < 10; ++j) { 576 if (a[i] > b[j]) 577 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 578 } 579 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 580 } catch (float f) { 581 if (f > 0.1) 582 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 583 return; // expected-error {{cannot return from OpenMP region}} 584 } 585 switch (i) { 586 case 1: 587 b[i]++; 588 break; 589 default: 590 break; 591 } 592 for (int j = 0; j < 10; j++) { 593 if (c[i] > 10) 594 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 595 } 596 } 597 if (c[9] > 10) 598 throw c[9]; // OK 599 600 #pragma omp parallel for simd 601 for (int i = 0; i < 10; ++i) { 602 struct S { 603 void g() { throw 0; } 604 }; 605 } 606 } 607 608 void test_loop_firstprivate_lastprivate() { 609 S s(4); 610 #pragma omp parallel for simd lastprivate(s) firstprivate(s) 611 for (int i = 0; i < 16; ++i) 612 ; 613 } 614 615 void test_ordered() { 616 // expected-error@+1 2 {{unexpected OpenMP clause 'ordered' in directive '#pragma omp parallel for simd'}} 617 #pragma omp parallel for simd ordered ordered // expected-error {{directive '#pragma omp parallel for simd' cannot contain more than one 'ordered' clause}} 618 for (int i = 0; i < 16; ++i) 619 ; 620 } 621 622 void test_nowait() { 623 // expected-error@+1 2 {{unexpected OpenMP clause 'nowait' in directive '#pragma omp parallel for simd'}} 624 #pragma omp parallel for simd nowait nowait // expected-error {{directive '#pragma omp parallel for simd' cannot contain more than one 'nowait' clause}} 625 for (int i = 0; i < 16; ++i) 626 ; 627 } 628 629