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 class S { 6 int a; 7 S() : a(0) {} 8 9 public: 10 S(int v) : a(v) {} 11 S(const S &s) : a(s.a) {} 12 }; 13 14 static int sii; 15 // expected-note@+1 {{defined as threadprivate or thread local}} 16 #pragma omp threadprivate(sii) 17 static int globalii; 18 19 int test_iteration_spaces() { 20 const int N = 100; 21 float a[N], b[N], c[N]; 22 int ii, jj, kk; 23 float fii; 24 double dii; 25 #pragma omp parallel for simd 26 for (int i = 0; i < 10; i += 1) { 27 c[i] = a[i] + b[i]; 28 } 29 #pragma omp parallel for simd 30 for (char i = 0; i < 10; i++) { 31 c[i] = a[i] + b[i]; 32 } 33 #pragma omp parallel for simd 34 for (char i = 0; i < 10; i += '\1') { 35 c[i] = a[i] + b[i]; 36 } 37 #pragma omp parallel for simd 38 for (long long i = 0; i < 10; i++) { 39 c[i] = a[i] + b[i]; 40 } 41 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}} 42 #pragma omp parallel for simd 43 for (long long i = 0; i < 10; i += 1.5) { 44 c[i] = a[i] + b[i]; 45 } 46 #pragma omp parallel for simd 47 for (long long i = 0; i < 'z'; i += 1u) { 48 c[i] = a[i] + b[i]; 49 } 50 // expected-error@+2 {{variable must be of integer or random access iterator type}} 51 #pragma omp parallel for simd 52 for (float fi = 0; fi < 10.0; fi++) { 53 c[(int)fi] = a[(int)fi] + b[(int)fi]; 54 } 55 // expected-error@+2 {{variable must be of integer or random access iterator type}} 56 #pragma omp parallel for simd 57 for (double fi = 0; fi < 10.0; fi++) { 58 c[(int)fi] = a[(int)fi] + b[(int)fi]; 59 } 60 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 61 #pragma omp parallel for simd 62 for (int &ref = ii; ref < 10; ref++) { 63 } 64 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 65 #pragma omp parallel for simd 66 for (int i; i < 10; i++) 67 c[i] = a[i]; 68 69 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 70 #pragma omp parallel for simd 71 for (int i = 0, j = 0; i < 10; ++i) 72 c[i] = a[i]; 73 74 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 75 #pragma omp parallel for simd 76 for (; ii < 10; ++ii) 77 c[ii] = a[ii]; 78 79 // expected-warning@+3 {{expression result unused}} 80 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 81 #pragma omp parallel for simd 82 for (ii + 1; ii < 10; ++ii) 83 c[ii] = a[ii]; 84 85 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 86 #pragma omp parallel for simd 87 for (c[ii] = 0; ii < 10; ++ii) 88 c[ii] = a[ii]; 89 90 // Ok to skip parenthesises. 91 #pragma omp parallel for simd 92 for (((ii)) = 0; ii < 10; ++ii) 93 c[ii] = a[ii]; 94 95 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 96 #pragma omp parallel for simd 97 for (int i = 0; i; i++) 98 c[i] = a[i]; 99 100 // expected-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 101 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}} 102 #pragma omp parallel for simd 103 for (int i = 0; jj < kk; ii++) 104 c[i] = a[i]; 105 106 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 107 #pragma omp parallel for simd 108 for (int i = 0; !!i; i++) 109 c[i] = a[i]; 110 111 // Ok 112 #pragma omp parallel for simd 113 for (int i = 0; i != 1; i++) 114 c[i] = a[i]; 115 116 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 117 #pragma omp parallel for simd 118 for (int i = 0;; i++) 119 c[i] = a[i]; 120 121 // Ok. 122 #pragma omp parallel for simd 123 for (int i = 11; i > 10; i--) 124 c[i] = a[i]; 125 126 // Ok. 127 #pragma omp parallel for simd 128 for (int i = 0; i < 10; ++i) 129 c[i] = a[i]; 130 131 // Ok. 132 #pragma omp parallel for simd 133 for (ii = 0; ii < 10; ++ii) 134 c[ii] = a[ii]; 135 136 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 137 #pragma omp parallel for simd 138 for (ii = 0; ii < 10; ++jj) 139 c[ii] = a[jj]; 140 141 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 142 #pragma omp parallel for simd 143 for (ii = 0; ii < 10; ++++ii) 144 c[ii] = a[ii]; 145 146 // Ok but undefined behavior (in general, cannot check that incr 147 // is really loop-invariant). 148 #pragma omp parallel for simd 149 for (ii = 0; ii < 10; ii = ii + ii) 150 c[ii] = a[ii]; 151 152 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}} 153 #pragma omp parallel for simd 154 for (ii = 0; ii < 10; ii = ii + 1.0f) 155 c[ii] = a[ii]; 156 157 // Ok - step was converted to integer type. 158 #pragma omp parallel for simd 159 for (ii = 0; ii < 10; ii = ii + (int)1.1f) 160 c[ii] = a[ii]; 161 162 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 163 #pragma omp parallel for simd 164 for (ii = 0; ii < 10; jj = ii + 2) 165 c[ii] = a[ii]; 166 167 // expected-warning@+3 {{relational comparison result unused}} 168 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 169 #pragma omp parallel for simd 170 for (ii = 0; ii<10; jj> kk + 2) 171 c[ii] = a[ii]; 172 173 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 174 #pragma omp parallel for simd 175 for (ii = 0; ii < 10;) 176 c[ii] = a[ii]; 177 178 // expected-warning@+3 {{expression result unused}} 179 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 180 #pragma omp parallel for simd 181 for (ii = 0; ii < 10; !ii) 182 c[ii] = a[ii]; 183 184 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 185 #pragma omp parallel for simd 186 for (ii = 0; ii < 10; ii ? ++ii : ++jj) 187 c[ii] = a[ii]; 188 189 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 190 #pragma omp parallel for simd 191 for (ii = 0; ii < 10; ii = ii < 10) 192 c[ii] = a[ii]; 193 194 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 195 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 196 #pragma omp parallel for simd 197 for (ii = 0; ii < 10; ii = ii + 0) 198 c[ii] = a[ii]; 199 200 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 201 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 202 #pragma omp parallel for simd 203 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45)) 204 c[ii] = a[ii]; 205 206 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 207 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 208 #pragma omp parallel for simd 209 for (ii = 0; (ii) < 10; ii -= 25) 210 c[ii] = a[ii]; 211 212 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 213 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 214 #pragma omp parallel for simd 215 for (ii = 0; (ii < 10); ii -= 0) 216 c[ii] = a[ii]; 217 218 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 219 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 220 #pragma omp parallel for simd 221 for (ii = 0; ii > 10; (ii += 0)) 222 c[ii] = a[ii]; 223 224 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 225 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 226 #pragma omp parallel for simd 227 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii)) 228 c[ii] = a[ii]; 229 230 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 231 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 232 #pragma omp parallel for simd 233 for ((ii = 0); ii > 10; (ii -= 0)) 234 c[ii] = a[ii]; 235 236 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 237 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 238 #pragma omp parallel for simd 239 for (ii = 0; (ii < 10); (ii -= 0)) 240 c[ii] = a[ii]; 241 242 // expected-note@+2 {{defined as firstprivate}} 243 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be firstprivate, predetermined as linear}} 244 #pragma omp parallel for simd firstprivate(ii) 245 for (ii = 0; ii < 10; ii++) 246 c[ii] = a[ii]; 247 248 #pragma omp parallel for simd linear(ii) 249 for (ii = 0; ii < 10; ii++) 250 c[ii] = a[ii]; 251 252 // expected-note@+2 {{defined as private}} 253 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be private, predetermined as linear}} 254 #pragma omp parallel for simd private(ii) 255 for (ii = 0; ii < 10; ii++) 256 c[ii] = a[ii]; 257 258 // expected-note@+2 {{defined as lastprivate}} 259 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be lastprivate, predetermined as linear}} 260 #pragma omp parallel for simd lastprivate(ii) 261 for (ii = 0; ii < 10; ii++) 262 c[ii] = a[ii]; 263 264 { 265 // 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}} 266 #pragma omp parallel for simd 267 for (sii = 0; sii < 10; sii += 1) 268 c[sii] = a[sii]; 269 } 270 271 { 272 #pragma omp parallel for simd 273 for (globalii = 0; globalii < 10; globalii += 1) 274 c[globalii] = a[globalii]; 275 } 276 277 { 278 #pragma omp parallel for simd collapse(2) 279 for (ii = 0; ii < 10; ii += 1) 280 for (globalii = 0; globalii < 10; globalii += 1) 281 c[globalii] += a[globalii] + ii; 282 } 283 284 // expected-error@+2 {{statement after '#pragma omp parallel for simd' must be a for loop}} 285 #pragma omp parallel for simd 286 for (auto &item : a) { 287 item = item + 1; 288 } 289 290 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 291 // expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}} 292 #pragma omp parallel for simd 293 for (unsigned i = 9; i < 10; i--) { 294 c[i] = a[i] + b[i]; 295 } 296 297 int(*lb)[4] = nullptr; 298 #pragma omp parallel for simd 299 for (int(*p)[4] = lb; p < lb + 8; ++p) { 300 } 301 302 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 303 #pragma omp parallel for simd 304 for (int a{0}; a < 10; ++a) { 305 } 306 307 return 0; 308 } 309 310 // Iterators allowed in openmp for-loops. 311 namespace std { 312 struct random_access_iterator_tag {}; 313 template <class Iter> 314 struct iterator_traits { 315 typedef typename Iter::difference_type difference_type; 316 typedef typename Iter::iterator_category iterator_category; 317 }; 318 template <class Iter> 319 typename iterator_traits<Iter>::difference_type 320 distance(Iter first, Iter last) { return first - last; } 321 } 322 class Iter0 { 323 public: 324 Iter0() {} 325 Iter0(const Iter0 &) {} 326 Iter0 operator++() { return *this; } 327 Iter0 operator--() { return *this; } 328 bool operator<(Iter0 a) { return true; } 329 }; 330 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}} 331 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}} 332 int operator-(Iter0 a, Iter0 b) { return 0; } 333 class Iter1 { 334 public: 335 Iter1(float f = 0.0f, double d = 0.0) {} 336 Iter1(const Iter1 &) {} 337 Iter1 operator++() { return *this; } 338 Iter1 operator--() { return *this; } 339 bool operator<(Iter1 a) { return true; } 340 bool operator>=(Iter1 a) { return false; } 341 }; 342 class GoodIter { 343 public: 344 GoodIter() {} 345 GoodIter(const GoodIter &) {} 346 GoodIter(int fst, int snd) {} 347 GoodIter &operator=(const GoodIter &that) { return *this; } 348 GoodIter &operator=(const Iter0 &that) { return *this; } 349 GoodIter &operator+=(int x) { return *this; } 350 explicit GoodIter(void *) {} 351 GoodIter operator++() { return *this; } 352 GoodIter operator--() { return *this; } 353 bool operator!() { return true; } 354 bool operator<(GoodIter a) { return true; } 355 bool operator<=(GoodIter a) { return true; } 356 bool operator>=(GoodIter a) { return false; } 357 typedef int difference_type; 358 typedef std::random_access_iterator_tag iterator_category; 359 }; 360 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}} 361 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 362 int operator-(GoodIter a, GoodIter b) { return 0; } 363 // expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}} 364 GoodIter operator-(GoodIter a) { return a; } 365 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}} 366 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 367 GoodIter operator-(GoodIter a, int v) { return GoodIter(); } 368 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}} 369 GoodIter operator+(GoodIter a, int v) { return GoodIter(); } 370 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}} 371 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}} 372 GoodIter operator-(int v, GoodIter a) { return GoodIter(); } 373 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}} 374 GoodIter operator+(int v, GoodIter a) { return GoodIter(); } 375 376 int test_with_random_access_iterator() { 377 GoodIter begin, end; 378 Iter0 begin0, end0; 379 #pragma omp parallel for simd 380 for (GoodIter I = begin; I < end; ++I) 381 ++I; 382 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 383 #pragma omp parallel for simd 384 for (GoodIter &I = begin; I < end; ++I) 385 ++I; 386 #pragma omp parallel for simd 387 for (GoodIter I = begin; I >= end; --I) 388 ++I; 389 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 390 #pragma omp parallel for simd 391 for (GoodIter I(begin); I < end; ++I) 392 ++I; 393 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 394 #pragma omp parallel for simd 395 for (GoodIter I(nullptr); I < end; ++I) 396 ++I; 397 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 398 #pragma omp parallel for simd 399 for (GoodIter I(0); I < end; ++I) 400 ++I; 401 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 402 #pragma omp parallel for simd 403 for (GoodIter I(1, 2); I < end; ++I) 404 ++I; 405 #pragma omp parallel for simd 406 for (begin = GoodIter(0); begin < end; ++begin) 407 ++begin; 408 // expected-error@+3 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}} 409 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 410 #pragma omp parallel for simd 411 for (begin = begin0; begin < end; ++begin) 412 ++begin; 413 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 414 #pragma omp parallel for simd 415 for (++begin; begin < end; ++begin) 416 ++begin; 417 #pragma omp parallel for simd 418 for (begin = end; begin < end; ++begin) 419 ++begin; 420 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 421 #pragma omp parallel for simd 422 for (GoodIter I = begin; I - I; ++I) 423 ++I; 424 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 425 #pragma omp parallel for simd 426 for (GoodIter I = begin; begin < end; ++I) 427 ++I; 428 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 429 #pragma omp parallel for simd 430 for (GoodIter I = begin; !I; ++I) 431 ++I; 432 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 433 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 434 #pragma omp parallel for simd 435 for (GoodIter I = begin; I >= end; I = I + 1) 436 ++I; 437 #pragma omp parallel for simd 438 for (GoodIter I = begin; I >= end; I = I - 1) 439 ++I; 440 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 441 #pragma omp parallel for simd 442 for (GoodIter I = begin; I >= end; I = -I) 443 ++I; 444 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 445 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 446 #pragma omp parallel for simd 447 for (GoodIter I = begin; I >= end; I = 2 + I) 448 ++I; 449 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 450 #pragma omp parallel for simd 451 for (GoodIter I = begin; I >= end; I = 2 - I) 452 ++I; 453 // expected-error@+2 {{invalid operands to binary expression ('Iter0' and 'int')}} 454 #pragma omp parallel for simd 455 for (Iter0 I = begin0; I < end0; ++I) 456 ++I; 457 // Initializer is constructor without params. 458 // expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}} 459 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 460 #pragma omp parallel for simd 461 for (Iter0 I; I < end0; ++I) 462 ++I; 463 Iter1 begin1, end1; 464 // expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 465 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 466 #pragma omp parallel for simd 467 for (Iter1 I = begin1; I < end1; ++I) 468 ++I; 469 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 470 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 471 #pragma omp parallel for simd 472 for (Iter1 I = begin1; I >= end1; ++I) 473 ++I; 474 // expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'float')}} 475 // expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 476 // Initializer is constructor with all default params. 477 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 478 #pragma omp parallel for simd 479 for (Iter1 I; I < end1; ++I) { 480 } 481 return 0; 482 } 483 484 template <typename IT, int ST> 485 class TC { 486 public: 487 int dotest_lt(IT begin, IT end) { 488 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 489 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 490 #pragma omp parallel for simd 491 for (IT I = begin; I < end; I = I + ST) { 492 ++I; 493 } 494 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 495 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 496 #pragma omp parallel for simd 497 for (IT I = begin; I <= end; I += ST) { 498 ++I; 499 } 500 #pragma omp parallel for simd 501 for (IT I = begin; I < end; ++I) { 502 ++I; 503 } 504 } 505 506 static IT step() { 507 return IT(ST); 508 } 509 }; 510 template <typename IT, int ST = 0> 511 int dotest_gt(IT begin, IT end) { 512 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 513 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 514 #pragma omp parallel for simd 515 for (IT I = begin; I >= end; I = I + ST) { 516 ++I; 517 } 518 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 519 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 520 #pragma omp parallel for simd 521 for (IT I = begin; I >= end; I += ST) { 522 ++I; 523 } 524 525 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 526 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 527 #pragma omp parallel for simd 528 for (IT I = begin; I >= end; ++I) { 529 ++I; 530 } 531 532 #pragma omp parallel for simd 533 for (IT I = begin; I < end; I += TC<int, ST>::step()) { 534 ++I; 535 } 536 } 537 538 void test_with_template() { 539 GoodIter begin, end; 540 TC<GoodIter, 100> t1; 541 TC<GoodIter, -100> t2; 542 t1.dotest_lt(begin, end); 543 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}} 544 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}} 545 dotest_gt<unsigned, 10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, 10>' requested here}} 546 } 547 548 void test_loop_break() { 549 const int N = 100; 550 float a[N], b[N], c[N]; 551 #pragma omp parallel for simd 552 for (int i = 0; i < 10; i++) { 553 c[i] = a[i] + b[i]; 554 for (int j = 0; j < 10; ++j) { 555 if (a[i] > b[j]) 556 break; // OK in nested loop 557 } 558 switch (i) { 559 case 1: 560 b[i]++; 561 break; 562 default: 563 break; 564 } 565 if (c[i] > 10) 566 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 567 568 if (c[i] > 11) 569 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 570 } 571 572 #pragma omp parallel for simd 573 for (int i = 0; i < 10; i++) { 574 for (int j = 0; j < 10; j++) { 575 c[i] = a[i] + b[i]; 576 if (c[i] > 10) { 577 if (c[i] < 20) { 578 break; // OK 579 } 580 } 581 } 582 } 583 } 584 585 void test_loop_eh() { 586 const int N = 100; 587 float a[N], b[N], c[N]; 588 #pragma omp parallel for simd 589 for (int i = 0; i < 10; i++) { 590 c[i] = a[i] + b[i]; 591 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}} 592 for (int j = 0; j < 10; ++j) { 593 if (a[i] > b[j]) 594 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 595 } 596 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 597 } catch (float f) { 598 if (f > 0.1) 599 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 600 return; // expected-error {{cannot return from OpenMP region}} 601 } 602 switch (i) { 603 case 1: 604 b[i]++; 605 break; 606 default: 607 break; 608 } 609 for (int j = 0; j < 10; j++) { 610 if (c[i] > 10) 611 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 612 } 613 } 614 if (c[9] > 10) 615 throw c[9]; // OK 616 617 #pragma omp parallel for simd 618 for (int i = 0; i < 10; ++i) { 619 struct S { 620 void g() { throw 0; } 621 }; 622 } 623 } 624 625 void test_loop_firstprivate_lastprivate() { 626 S s(4); 627 #pragma omp parallel for simd lastprivate(s) firstprivate(s) 628 for (int i = 0; i < 16; ++i) 629 ; 630 } 631 632 void test_ordered() { 633 #pragma omp parallel for simd ordered ordered // expected-error {{directive '#pragma omp parallel for simd' cannot contain more than one 'ordered' clause}} 634 for (int i = 0; i < 16; ++i) 635 ; 636 #pragma omp parallel for simd ordered 637 for (int i = 0; i < 16; ++i) 638 ; 639 //expected-error@+1 {{'ordered' clause with a parameter can not be specified in '#pragma omp parallel for simd' directive}} 640 #pragma omp parallel for simd ordered(1) 641 for (int i = 0; i < 16; ++i) 642 ; 643 } 644 645 void test_nowait() { 646 // expected-error@+1 2 {{unexpected OpenMP clause 'nowait' in directive '#pragma omp parallel for simd'}} 647 #pragma omp parallel for simd nowait nowait // expected-error {{directive '#pragma omp parallel for simd' cannot contain more than one 'nowait' clause}} 648 for (int i = 0; i < 16; ++i) 649 ; 650 } 651 652