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