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 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 {{variable must be of integer or random access iterator type}} 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 must be of the 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 must be of the 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 must be of the 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 must be of the 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 must be of the 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 // 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}} 263 #pragma omp parallel for simd 264 for (sii = 0; sii < 10; sii += 1) 265 c[sii] = a[sii]; 266 } 267 268 { 269 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be a variable with global storage without being explicitly marked as linear}} 270 #pragma omp parallel for simd 271 for (globalii = 0; globalii < 10; globalii += 1) 272 c[globalii] = a[globalii]; 273 } 274 275 { 276 // expected-error@+3 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be a variable with global storage without being explicitly marked as lastprivate}} 277 #pragma omp parallel for simd collapse(2) 278 for (ii = 0; ii < 10; ii += 1) 279 for (globalii = 0; globalii < 10; globalii += 1) 280 c[globalii] += a[globalii] + ii; 281 } 282 283 // expected-error@+2 {{statement after '#pragma omp parallel for simd' must be a for loop}} 284 #pragma omp parallel for simd 285 for (auto &item : a) { 286 item = item + 1; 287 } 288 289 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 290 // expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}} 291 #pragma omp parallel for simd 292 for (unsigned i = 9; i < 10; i--) { 293 c[i] = a[i] + b[i]; 294 } 295 296 int(*lb)[4] = nullptr; 297 #pragma omp parallel for simd 298 for (int(*p)[4] = lb; p < lb + 8; ++p) { 299 } 300 301 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 302 #pragma omp parallel for simd 303 for (int a{0}; a < 10; ++a) { 304 } 305 306 return 0; 307 } 308 309 // Iterators allowed in openmp for-loops. 310 namespace std { 311 struct random_access_iterator_tag {}; 312 template <class Iter> 313 struct iterator_traits { 314 typedef typename Iter::difference_type difference_type; 315 typedef typename Iter::iterator_category iterator_category; 316 }; 317 template <class Iter> 318 typename iterator_traits<Iter>::difference_type 319 distance(Iter first, Iter last) { return first - last; } 320 } 321 class Iter0 { 322 public: 323 Iter0() {} 324 Iter0(const Iter0 &) {} 325 Iter0 operator++() { return *this; } 326 Iter0 operator--() { return *this; } 327 bool operator<(Iter0 a) { return true; } 328 }; 329 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}} 330 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}} 331 int operator-(Iter0 a, Iter0 b) { return 0; } 332 class Iter1 { 333 public: 334 Iter1(float f = 0.0f, double d = 0.0) {} 335 Iter1(const Iter1 &) {} 336 Iter1 operator++() { return *this; } 337 Iter1 operator--() { return *this; } 338 bool operator<(Iter1 a) { return true; } 339 bool operator>=(Iter1 a) { return false; } 340 }; 341 class GoodIter { 342 public: 343 GoodIter() {} 344 GoodIter(const GoodIter &) {} 345 GoodIter(int fst, int snd) {} 346 GoodIter &operator=(const GoodIter &that) { return *this; } 347 GoodIter &operator=(const Iter0 &that) { return *this; } 348 GoodIter &operator+=(int x) { return *this; } 349 explicit GoodIter(void *) {} 350 GoodIter operator++() { return *this; } 351 GoodIter operator--() { return *this; } 352 bool operator!() { return true; } 353 bool operator<(GoodIter a) { return true; } 354 bool operator<=(GoodIter a) { return true; } 355 bool operator>=(GoodIter a) { return false; } 356 typedef int difference_type; 357 typedef std::random_access_iterator_tag iterator_category; 358 }; 359 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}} 360 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 361 int operator-(GoodIter a, GoodIter b) { return 0; } 362 // expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}} 363 GoodIter operator-(GoodIter a) { return a; } 364 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}} 365 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 366 GoodIter operator-(GoodIter a, int v) { return GoodIter(); } 367 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}} 368 GoodIter operator+(GoodIter a, int v) { return GoodIter(); } 369 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}} 370 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}} 371 GoodIter operator-(int v, GoodIter a) { return GoodIter(); } 372 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}} 373 GoodIter operator+(int v, GoodIter a) { return GoodIter(); } 374 375 int test_with_random_access_iterator() { 376 GoodIter begin, end; 377 Iter0 begin0, end0; 378 #pragma omp parallel for simd 379 for (GoodIter I = begin; I < end; ++I) 380 ++I; 381 // expected-error@+2 {{variable must be of integer or random access iterator type}} 382 #pragma omp parallel for simd 383 for (GoodIter &I = begin; I < end; ++I) 384 ++I; 385 #pragma omp parallel for simd 386 for (GoodIter I = begin; I >= end; --I) 387 ++I; 388 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 389 #pragma omp parallel for simd 390 for (GoodIter I(begin); I < end; ++I) 391 ++I; 392 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 393 #pragma omp parallel for simd 394 for (GoodIter I(nullptr); I < end; ++I) 395 ++I; 396 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 397 #pragma omp parallel for simd 398 for (GoodIter I(0); I < end; ++I) 399 ++I; 400 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 401 #pragma omp parallel for simd 402 for (GoodIter I(1, 2); I < end; ++I) 403 ++I; 404 #pragma omp parallel for simd 405 for (begin = GoodIter(0); begin < end; ++begin) 406 ++begin; 407 // expected-error@+3 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}} 408 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 409 #pragma omp parallel for simd 410 for (begin = begin0; begin < end; ++begin) 411 ++begin; 412 // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} 413 #pragma omp parallel for simd 414 for (++begin; begin < end; ++begin) 415 ++begin; 416 #pragma omp parallel for simd 417 for (begin = end; begin < end; ++begin) 418 ++begin; 419 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 420 #pragma omp parallel for simd 421 for (GoodIter I = begin; I - I; ++I) 422 ++I; 423 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 424 #pragma omp parallel for simd 425 for (GoodIter I = begin; begin < end; ++I) 426 ++I; 427 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 428 #pragma omp parallel for simd 429 for (GoodIter I = begin; !I; ++I) 430 ++I; 431 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 432 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 433 #pragma omp parallel for simd 434 for (GoodIter I = begin; I >= end; I = I + 1) 435 ++I; 436 #pragma omp parallel for simd 437 for (GoodIter I = begin; I >= end; I = I - 1) 438 ++I; 439 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 440 #pragma omp parallel for simd 441 for (GoodIter I = begin; I >= end; I = -I) 442 ++I; 443 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 444 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 445 #pragma omp parallel for simd 446 for (GoodIter I = begin; I >= end; I = 2 + I) 447 ++I; 448 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 449 #pragma omp parallel for simd 450 for (GoodIter I = begin; I >= end; I = 2 - I) 451 ++I; 452 // expected-error@+2 {{invalid operands to binary expression ('Iter0' and 'int')}} 453 #pragma omp parallel for simd 454 for (Iter0 I = begin0; I < end0; ++I) 455 ++I; 456 // Initializer is constructor without params. 457 // expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}} 458 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 459 #pragma omp parallel for simd 460 for (Iter0 I; I < end0; ++I) 461 ++I; 462 Iter1 begin1, end1; 463 // expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 464 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 465 #pragma omp parallel for simd 466 for (Iter1 I = begin1; I < end1; ++I) 467 ++I; 468 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 469 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 470 #pragma omp parallel for simd 471 for (Iter1 I = begin1; I >= end1; ++I) 472 ++I; 473 // expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 474 // expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 475 // Initializer is constructor with all default params. 476 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 477 #pragma omp parallel for simd 478 for (Iter1 I; I < end1; ++I) { 479 } 480 return 0; 481 } 482 483 template <typename IT, int ST> 484 class TC { 485 public: 486 int dotest_lt(IT begin, IT end) { 487 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 488 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 489 #pragma omp parallel for simd 490 for (IT I = begin; I < end; I = I + ST) { 491 ++I; 492 } 493 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 494 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 495 #pragma omp parallel for simd 496 for (IT I = begin; I <= end; I += ST) { 497 ++I; 498 } 499 #pragma omp parallel for simd 500 for (IT I = begin; I < end; ++I) { 501 ++I; 502 } 503 } 504 505 static IT step() { 506 return IT(ST); 507 } 508 }; 509 template <typename IT, int ST = 0> 510 int dotest_gt(IT begin, IT end) { 511 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 512 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 513 #pragma omp parallel for simd 514 for (IT I = begin; I >= end; I = I + ST) { 515 ++I; 516 } 517 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 518 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 519 #pragma omp parallel for simd 520 for (IT I = begin; I >= end; I += ST) { 521 ++I; 522 } 523 524 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 525 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 526 #pragma omp parallel for simd 527 for (IT I = begin; I >= end; ++I) { 528 ++I; 529 } 530 531 #pragma omp parallel for simd 532 for (IT I = begin; I < end; I += TC<int, ST>::step()) { 533 ++I; 534 } 535 } 536 537 void test_with_template() { 538 GoodIter begin, end; 539 TC<GoodIter, 100> t1; 540 TC<GoodIter, -100> t2; 541 t1.dotest_lt(begin, end); 542 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}} 543 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}} 544 dotest_gt<unsigned, -10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, -10>' requested here}} 545 } 546 547 void test_loop_break() { 548 const int N = 100; 549 float a[N], b[N], c[N]; 550 #pragma omp parallel for simd 551 for (int i = 0; i < 10; i++) { 552 c[i] = a[i] + b[i]; 553 for (int j = 0; j < 10; ++j) { 554 if (a[i] > b[j]) 555 break; // OK in nested loop 556 } 557 switch (i) { 558 case 1: 559 b[i]++; 560 break; 561 default: 562 break; 563 } 564 if (c[i] > 10) 565 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 566 567 if (c[i] > 11) 568 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 569 } 570 571 #pragma omp parallel for simd 572 for (int i = 0; i < 10; i++) { 573 for (int j = 0; j < 10; j++) { 574 c[i] = a[i] + b[i]; 575 if (c[i] > 10) { 576 if (c[i] < 20) { 577 break; // OK 578 } 579 } 580 } 581 } 582 } 583 584 void test_loop_eh() { 585 const int N = 100; 586 float a[N], b[N], c[N]; 587 #pragma omp parallel for simd 588 for (int i = 0; i < 10; i++) { 589 c[i] = a[i] + b[i]; 590 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}} 591 for (int j = 0; j < 10; ++j) { 592 if (a[i] > b[j]) 593 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 594 } 595 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 596 } catch (float f) { 597 if (f > 0.1) 598 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 599 return; // expected-error {{cannot return from OpenMP region}} 600 } 601 switch (i) { 602 case 1: 603 b[i]++; 604 break; 605 default: 606 break; 607 } 608 for (int j = 0; j < 10; j++) { 609 if (c[i] > 10) 610 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 611 } 612 } 613 if (c[9] > 10) 614 throw c[9]; // OK 615 616 #pragma omp parallel for simd 617 for (int i = 0; i < 10; ++i) { 618 struct S { 619 void g() { throw 0; } 620 }; 621 } 622 } 623 624 void test_loop_firstprivate_lastprivate() { 625 S s(4); 626 #pragma omp parallel for simd lastprivate(s) firstprivate(s) 627 for (int i = 0; i < 16; ++i) 628 ; 629 } 630 631 void test_ordered() { 632 // expected-error@+1 2 {{unexpected OpenMP clause 'ordered' in directive '#pragma omp parallel for simd'}} 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 } 637 638 void test_nowait() { 639 // expected-error@+1 2 {{unexpected OpenMP clause 'nowait' in directive '#pragma omp parallel for simd'}} 640 #pragma omp parallel for simd nowait nowait // expected-error {{directive '#pragma omp parallel for simd' cannot contain more than one 'nowait' clause}} 641 for (int i = 0; i < 16; ++i) 642 ; 643 } 644 645
