1 // RUN: %clang_cc1 -fsyntax-only -fopenmp -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify %s 2 3 class S { 4 int a; 5 S() : a(0) {} 6 7 public: 8 S(int v) : a(v) {} 9 S(const S &s) : a(s.a) {} 10 }; 11 12 static int sii; 13 #pragma omp threadprivate(sii) 14 static int globalii; 15 16 int test_iteration_spaces() { 17 const int N = 100; 18 float a[N], b[N], c[N]; 19 int ii, jj, kk; 20 float fii; 21 double dii; 22 #pragma omp parallel for simd 23 for (int i = 0; i < 10; i += 1) { 24 c[i] = a[i] + b[i]; 25 } 26 #pragma omp parallel for simd 27 for (char i = 0; i < 10; i++) { 28 c[i] = a[i] + b[i]; 29 } 30 #pragma omp parallel for simd 31 for (char i = 0; i < 10; i += '\1') { 32 c[i] = a[i] + b[i]; 33 } 34 #pragma omp parallel for simd 35 for (long long i = 0; i < 10; i++) { 36 c[i] = a[i] + b[i]; 37 } 38 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}} 39 #pragma omp parallel for simd 40 for (long long i = 0; i < 10; i += 1.5) { 41 c[i] = a[i] + b[i]; 42 } 43 #pragma omp parallel for simd 44 for (long long i = 0; i < 'z'; i += 1u) { 45 c[i] = a[i] + b[i]; 46 } 47 // expected-error@+2 {{variable must be of integer or random access iterator type}} 48 #pragma omp parallel for simd 49 for (float fi = 0; fi < 10.0; fi++) { 50 c[(int)fi] = a[(int)fi] + b[(int)fi]; 51 } 52 // expected-error@+2 {{variable must be of integer or random access iterator type}} 53 #pragma omp parallel for simd 54 for (double fi = 0; fi < 10.0; fi++) { 55 c[(int)fi] = a[(int)fi] + b[(int)fi]; 56 } 57 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 58 #pragma omp parallel for simd 59 for (int &ref = ii; ref < 10; ref++) { 60 } 61 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 62 #pragma omp parallel for simd 63 for (int i; i < 10; i++) 64 c[i] = a[i]; 65 66 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 67 #pragma omp parallel for simd 68 for (int i = 0, j = 0; i < 10; ++i) 69 c[i] = a[i]; 70 71 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 72 #pragma omp parallel for simd 73 for (; ii < 10; ++ii) 74 c[ii] = a[ii]; 75 76 // expected-warning@+3 {{expression result unused}} 77 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 78 #pragma omp parallel for simd 79 for (ii + 1; ii < 10; ++ii) 80 c[ii] = a[ii]; 81 82 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 83 #pragma omp parallel for simd 84 for (c[ii] = 0; ii < 10; ++ii) 85 c[ii] = a[ii]; 86 87 // Ok to skip parenthesises. 88 #pragma omp parallel for simd 89 for (((ii)) = 0; ii < 10; ++ii) 90 c[ii] = a[ii]; 91 92 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 93 #pragma omp parallel for simd 94 for (int i = 0; i; i++) 95 c[i] = a[i]; 96 97 // expected-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 98 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}} 99 #pragma omp parallel for simd 100 for (int i = 0; jj < kk; ii++) 101 c[i] = a[i]; 102 103 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 104 #pragma omp parallel for simd 105 for (int i = 0; !!i; i++) 106 c[i] = a[i]; 107 108 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 109 #pragma omp parallel for simd 110 for (int i = 0; i != 1; i++) 111 c[i] = a[i]; 112 113 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 114 #pragma omp parallel for simd 115 for (int i = 0;; i++) 116 c[i] = a[i]; 117 118 // Ok. 119 #pragma omp parallel for simd 120 for (int i = 11; i > 10; i--) 121 c[i] = a[i]; 122 123 // Ok. 124 #pragma omp parallel for simd 125 for (int i = 0; i < 10; ++i) 126 c[i] = a[i]; 127 128 // Ok. 129 #pragma omp parallel for simd 130 for (ii = 0; ii < 10; ++ii) 131 c[ii] = a[ii]; 132 133 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 134 #pragma omp parallel for simd 135 for (ii = 0; ii < 10; ++jj) 136 c[ii] = a[jj]; 137 138 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 139 #pragma omp parallel for simd 140 for (ii = 0; ii < 10; ++++ii) 141 c[ii] = a[ii]; 142 143 // Ok but undefined behavior (in general, cannot check that incr 144 // is really loop-invariant). 145 #pragma omp parallel for simd 146 for (ii = 0; ii < 10; ii = ii + ii) 147 c[ii] = a[ii]; 148 149 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}} 150 #pragma omp parallel for simd 151 for (ii = 0; ii < 10; ii = ii + 1.0f) 152 c[ii] = a[ii]; 153 154 // Ok - step was converted to integer type. 155 #pragma omp parallel for simd 156 for (ii = 0; ii < 10; ii = ii + (int)1.1f) 157 c[ii] = a[ii]; 158 159 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 160 #pragma omp parallel for simd 161 for (ii = 0; ii < 10; jj = ii + 2) 162 c[ii] = a[ii]; 163 164 // expected-warning@+3 {{relational comparison result unused}} 165 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 166 #pragma omp parallel for simd 167 for (ii = 0; ii<10; jj> kk + 2) 168 c[ii] = a[ii]; 169 170 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 171 #pragma omp parallel for simd 172 for (ii = 0; ii < 10;) 173 c[ii] = a[ii]; 174 175 // expected-warning@+3 {{expression result unused}} 176 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 177 #pragma omp parallel for simd 178 for (ii = 0; ii < 10; !ii) 179 c[ii] = a[ii]; 180 181 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 182 #pragma omp parallel for simd 183 for (ii = 0; ii < 10; ii ? ++ii : ++jj) 184 c[ii] = a[ii]; 185 186 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 187 #pragma omp parallel for simd 188 for (ii = 0; ii < 10; ii = ii < 10) 189 c[ii] = a[ii]; 190 191 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 192 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 193 #pragma omp parallel for simd 194 for (ii = 0; ii < 10; ii = ii + 0) 195 c[ii] = a[ii]; 196 197 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 198 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 199 #pragma omp parallel for simd 200 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45)) 201 c[ii] = a[ii]; 202 203 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 204 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 205 #pragma omp parallel for simd 206 for (ii = 0; (ii) < 10; ii -= 25) 207 c[ii] = a[ii]; 208 209 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 210 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 211 #pragma omp parallel for simd 212 for (ii = 0; (ii < 10); ii -= 0) 213 c[ii] = a[ii]; 214 215 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 216 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 217 #pragma omp parallel for simd 218 for (ii = 0; ii > 10; (ii += 0)) 219 c[ii] = a[ii]; 220 221 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 222 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 223 #pragma omp parallel for simd 224 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii)) 225 c[ii] = a[ii]; 226 227 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 228 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 229 #pragma omp parallel for simd 230 for ((ii = 0); ii > 10; (ii -= 0)) 231 c[ii] = a[ii]; 232 233 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 234 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 235 #pragma omp parallel for simd 236 for (ii = 0; (ii < 10); (ii -= 0)) 237 c[ii] = a[ii]; 238 239 // expected-note@+2 {{defined as firstprivate}} 240 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be firstprivate, predetermined as linear}} 241 #pragma omp parallel for simd firstprivate(ii) 242 for (ii = 0; ii < 10; ii++) 243 c[ii] = a[ii]; 244 245 #pragma omp parallel for simd linear(ii) 246 for (ii = 0; ii < 10; ii++) 247 c[ii] = a[ii]; 248 249 // expected-note@+2 {{defined as private}} 250 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be private, predetermined as linear}} 251 #pragma omp parallel for simd private(ii) 252 for (ii = 0; ii < 10; ii++) 253 c[ii] = a[ii]; 254 255 // expected-note@+2 {{defined as lastprivate}} 256 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be lastprivate, predetermined as linear}} 257 #pragma omp parallel for simd lastprivate(ii) 258 for (ii = 0; ii < 10; ii++) 259 c[ii] = a[ii]; 260 261 { 262 #pragma omp parallel for simd 263 for (sii = 0; sii < 10; sii += 1) 264 c[sii] = a[sii]; 265 } 266 267 { 268 #pragma omp parallel for simd 269 for (globalii = 0; globalii < 10; globalii += 1) 270 c[globalii] = a[globalii]; 271 } 272 273 { 274 #pragma omp parallel for simd collapse(2) 275 for (ii = 0; ii < 10; ii += 1) 276 for (globalii = 0; globalii < 10; globalii += 1) 277 c[globalii] += a[globalii] + ii; 278 } 279 280 // expected-error@+2 {{statement after '#pragma omp parallel for simd' must be a for loop}} 281 #pragma omp parallel for simd 282 for (auto &item : a) { 283 item = item + 1; 284 } 285 286 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 287 // expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}} 288 #pragma omp parallel for simd 289 for (unsigned i = 9; i < 10; i--) { 290 c[i] = a[i] + b[i]; 291 } 292 293 int(*lb)[4] = nullptr; 294 #pragma omp parallel for simd 295 for (int(*p)[4] = lb; p < lb + 8; ++p) { 296 } 297 298 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 299 #pragma omp parallel for simd 300 for (int a{0}; a < 10; ++a) { 301 } 302 303 return 0; 304 } 305 306 // Iterators allowed in openmp for-loops. 307 namespace std { 308 struct random_access_iterator_tag {}; 309 template <class Iter> 310 struct iterator_traits { 311 typedef typename Iter::difference_type difference_type; 312 typedef typename Iter::iterator_category iterator_category; 313 }; 314 template <class Iter> 315 typename iterator_traits<Iter>::difference_type 316 distance(Iter first, Iter last) { return first - last; } 317 } 318 class Iter0 { 319 public: 320 Iter0() {} 321 Iter0(const Iter0 &) {} 322 Iter0 operator++() { return *this; } 323 Iter0 operator--() { return *this; } 324 bool operator<(Iter0 a) { return true; } 325 }; 326 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}} 327 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}} 328 int operator-(Iter0 a, Iter0 b) { return 0; } 329 class Iter1 { 330 public: 331 Iter1(float f = 0.0f, double d = 0.0) {} 332 Iter1(const Iter1 &) {} 333 Iter1 operator++() { return *this; } 334 Iter1 operator--() { return *this; } 335 bool operator<(Iter1 a) { return true; } 336 bool operator>=(Iter1 a) { return false; } 337 }; 338 class GoodIter { 339 public: 340 GoodIter() {} 341 GoodIter(const GoodIter &) {} 342 GoodIter(int fst, int snd) {} 343 GoodIter &operator=(const GoodIter &that) { return *this; } 344 GoodIter &operator=(const Iter0 &that) { return *this; } 345 GoodIter &operator+=(int x) { return *this; } 346 explicit GoodIter(void *) {} 347 GoodIter operator++() { return *this; } 348 GoodIter operator--() { return *this; } 349 bool operator!() { return true; } 350 bool operator<(GoodIter a) { return true; } 351 bool operator<=(GoodIter a) { return true; } 352 bool operator>=(GoodIter a) { return false; } 353 typedef int difference_type; 354 typedef std::random_access_iterator_tag iterator_category; 355 }; 356 // expected-note@+2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 2nd argument}} 357 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 358 int operator-(GoodIter a, GoodIter b) { return 0; } 359 // expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}} 360 GoodIter operator-(GoodIter a) { return a; } 361 // expected-note@+2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 2nd argument}} 362 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 363 GoodIter operator-(GoodIter a, int v) { return GoodIter(); } 364 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}} 365 GoodIter operator+(GoodIter a, int v) { return GoodIter(); } 366 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}} 367 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}} 368 GoodIter operator-(int v, GoodIter a) { return GoodIter(); } 369 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}} 370 GoodIter operator+(int v, GoodIter a) { return GoodIter(); } 371 372 int test_with_random_access_iterator() { 373 GoodIter begin, end; 374 Iter0 begin0, end0; 375 #pragma omp parallel for simd 376 for (GoodIter I = begin; I < end; ++I) 377 ++I; 378 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 379 #pragma omp parallel for simd 380 for (GoodIter &I = begin; I < end; ++I) 381 ++I; 382 #pragma omp parallel for simd 383 for (GoodIter I = begin; I >= end; --I) 384 ++I; 385 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 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(nullptr); 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(0); 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(1, 2); I < end; ++I) 400 ++I; 401 #pragma omp parallel for simd 402 for (begin = GoodIter(0); begin < end; ++begin) 403 ++begin; 404 // expected-error@+3 {{invalid operands to binary expression ('GoodIter' and 'Iter0')}} 405 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 406 #pragma omp parallel for simd 407 for (begin = begin0; begin < end; ++begin) 408 ++begin; 409 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 410 #pragma omp parallel for simd 411 for (++begin; begin < end; ++begin) 412 ++begin; 413 #pragma omp parallel for simd 414 for (begin = end; begin < end; ++begin) 415 ++begin; 416 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 417 #pragma omp parallel for simd 418 for (GoodIter I = begin; I - I; ++I) 419 ++I; 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; begin < end; ++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; !I; ++I) 427 ++I; 428 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 429 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 430 #pragma omp parallel for simd 431 for (GoodIter I = begin; I >= end; I = I + 1) 432 ++I; 433 #pragma omp parallel for simd 434 for (GoodIter I = begin; I >= end; I = I - 1) 435 ++I; 436 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 437 #pragma omp parallel for simd 438 for (GoodIter I = begin; I >= end; I = -I) 439 ++I; 440 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 441 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 442 #pragma omp parallel for simd 443 for (GoodIter I = begin; I >= end; I = 2 + I) 444 ++I; 445 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 446 #pragma omp parallel for simd 447 for (GoodIter I = begin; I >= end; I = 2 - I) 448 ++I; 449 // expected-error@+2 {{invalid operands to binary expression ('Iter0' and 'int')}} 450 #pragma omp parallel for simd 451 for (Iter0 I = begin0; I < end0; ++I) 452 ++I; 453 // Initializer is constructor without params. 454 // expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}} 455 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 456 #pragma omp parallel for simd 457 for (Iter0 I; I < end0; ++I) 458 ++I; 459 Iter1 begin1, end1; 460 // expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 461 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 462 #pragma omp parallel for simd 463 for (Iter1 I = begin1; I < end1; ++I) 464 ++I; 465 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 466 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 467 #pragma omp parallel for simd 468 for (Iter1 I = begin1; I >= end1; ++I) 469 ++I; 470 // expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'float')}} 471 // expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 472 // Initializer is constructor with all default params. 473 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 474 #pragma omp parallel for simd 475 for (Iter1 I; I < end1; ++I) { 476 } 477 return 0; 478 } 479 480 template <typename IT, int ST> 481 class TC { 482 public: 483 int dotest_lt(IT begin, IT end) { 484 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 485 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 486 #pragma omp parallel for simd 487 for (IT I = begin; I < end; I = I + ST) { 488 ++I; 489 } 490 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 491 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 492 #pragma omp parallel for simd 493 for (IT I = begin; I <= end; I += ST) { 494 ++I; 495 } 496 #pragma omp parallel for simd 497 for (IT I = begin; I < end; ++I) { 498 ++I; 499 } 500 } 501 502 static IT step() { 503 return IT(ST); 504 } 505 }; 506 template <typename IT, int ST = 0> 507 int dotest_gt(IT begin, IT end) { 508 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 509 // expected-error@+2 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 = I + ST) { 512 ++I; 513 } 514 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 515 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 516 #pragma omp parallel for simd 517 for (IT I = begin; I >= end; I += ST) { 518 ++I; 519 } 520 521 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 522 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 523 #pragma omp parallel for simd 524 for (IT I = begin; I >= end; ++I) { 525 ++I; 526 } 527 528 #pragma omp parallel for simd 529 for (IT I = begin; I < end; I += TC<int, ST>::step()) { 530 ++I; 531 } 532 } 533 534 void test_with_template() { 535 GoodIter begin, end; 536 TC<GoodIter, 100> t1; 537 TC<GoodIter, -100> t2; 538 t1.dotest_lt(begin, end); 539 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}} 540 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}} 541 dotest_gt<unsigned, -10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, -10>' requested here}} 542 } 543 544 void test_loop_break() { 545 const int N = 100; 546 float a[N], b[N], c[N]; 547 #pragma omp parallel for simd 548 for (int i = 0; i < 10; i++) { 549 c[i] = a[i] + b[i]; 550 for (int j = 0; j < 10; ++j) { 551 if (a[i] > b[j]) 552 break; // OK in nested loop 553 } 554 switch (i) { 555 case 1: 556 b[i]++; 557 break; 558 default: 559 break; 560 } 561 if (c[i] > 10) 562 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 563 564 if (c[i] > 11) 565 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 566 } 567 568 #pragma omp parallel for simd 569 for (int i = 0; i < 10; i++) { 570 for (int j = 0; j < 10; j++) { 571 c[i] = a[i] + b[i]; 572 if (c[i] > 10) { 573 if (c[i] < 20) { 574 break; // OK 575 } 576 } 577 } 578 } 579 } 580 581 void test_loop_eh() { 582 const int N = 100; 583 float a[N], b[N], c[N]; 584 #pragma omp parallel for simd 585 for (int i = 0; i < 10; i++) { 586 c[i] = a[i] + b[i]; 587 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}} 588 for (int j = 0; j < 10; ++j) { 589 if (a[i] > b[j]) 590 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 591 } 592 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 593 } catch (float f) { 594 if (f > 0.1) 595 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 596 return; // expected-error {{cannot return from OpenMP region}} 597 } 598 switch (i) { 599 case 1: 600 b[i]++; 601 break; 602 default: 603 break; 604 } 605 for (int j = 0; j < 10; j++) { 606 if (c[i] > 10) 607 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 608 } 609 } 610 if (c[9] > 10) 611 throw c[9]; // OK 612 613 #pragma omp parallel for simd 614 for (int i = 0; i < 10; ++i) { 615 struct S { 616 void g() { throw 0; } 617 }; 618 } 619 } 620 621 void test_loop_firstprivate_lastprivate() { 622 S s(4); 623 #pragma omp parallel for simd lastprivate(s) firstprivate(s) 624 for (int i = 0; i < 16; ++i) 625 ; 626 } 627 628 void test_ordered() { 629 // expected-error@+1 2 {{unexpected OpenMP clause 'ordered' in directive '#pragma omp parallel for simd'}} 630 #pragma omp parallel for simd ordered ordered // expected-error {{directive '#pragma omp parallel for simd' cannot contain more than one 'ordered' clause}} 631 for (int i = 0; i < 16; ++i) 632 ; 633 } 634 635 void test_nowait() { 636 // expected-error@+1 2 {{unexpected OpenMP clause 'nowait' in directive '#pragma omp parallel for simd'}} 637 #pragma omp parallel for simd nowait nowait // expected-error {{directive '#pragma omp parallel for simd' cannot contain more than one 'nowait' clause}} 638 for (int i = 0; i < 16; ++i) 639 ; 640 } 641 642
