1 // RUN: %clang_cc1 -fsyntax-only -fopenmp -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp4 %s -Wno-openmp-mapping -Wuninitialized 2 3 // RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp4 %s -Wno-openmp-mapping -Wuninitialized 4 5 class S { 6 int a; 7 S() : a(0) {} // expected-note {{implicitly declared private here}} 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 target teams distribute simd 26 for (int i = 0; i < 10; i += 1) { 27 c[i] = a[i] + b[i]; 28 } 29 #pragma omp target teams distribute simd 30 for (char i = 0; i < 10; i++) { 31 c[i] = a[i] + b[i]; 32 } 33 #pragma omp target teams distribute simd 34 for (char i = 0; i < 10; i += '\1') { 35 c[i] = a[i] + b[i]; 36 } 37 #pragma omp target teams distribute simd 38 for (long long i = 0; i < 10; i++) { 39 c[i] = a[i] + b[i]; 40 } 41 #pragma omp target teams distribute simd 42 // expected-error@+1 {{expression must have integral or unscoped enumeration type, not 'double'}} 43 for (long long i = 0; i < 10; i += 1.5) { 44 c[i] = a[i] + b[i]; 45 } 46 #pragma omp target teams distribute simd 47 for (long long i = 0; i < 'z'; i += 1u) { 48 c[i] = a[i] + b[i]; 49 } 50 #pragma omp target teams distribute simd 51 // expected-error@+1 {{variable must be of integer or random access iterator type}} 52 for (float fi = 0; fi < 10.0; fi++) { 53 c[(int)fi] = a[(int)fi] + b[(int)fi]; 54 } 55 #pragma omp target teams distribute simd 56 // expected-error@+1 {{variable must be of integer or random access iterator type}} 57 for (double fi = 0; fi < 10.0; fi++) { 58 c[(int)fi] = a[(int)fi] + b[(int)fi]; 59 } 60 #pragma omp target teams distribute simd 61 // expected-error@+1 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 62 for (int &ref = ii; ref < 10; ref++) { 63 } 64 #pragma omp target teams distribute simd 65 // expected-error@+1 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 66 for (int i; i < 10; i++) 67 c[i] = a[i]; 68 69 #pragma omp target teams distribute simd 70 // expected-error@+1 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 71 for (int i = 0, j = 0; i < 10; ++i) 72 c[i] = a[i]; 73 74 #pragma omp target teams distribute simd 75 // expected-error@+1 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 76 for (; ii < 10; ++ii) 77 c[ii] = a[ii]; 78 79 #pragma omp target teams distribute simd 80 // expected-warning@+2 {{expression result unused}} 81 // expected-error@+1 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 82 for (ii + 1; ii < 10; ++ii) 83 c[ii] = a[ii]; 84 85 #pragma omp target teams distribute simd 86 // expected-error@+1 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 87 for (c[ii] = 0; ii < 10; ++ii) 88 c[ii] = a[ii]; 89 90 #pragma omp target teams distribute simd 91 // Ok to skip parenthesises. 92 for (((ii)) = 0; ii < 10; ++ii) 93 c[ii] = a[ii]; 94 95 #pragma omp target teams distribute simd 96 // omp4-error@+1 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 97 for (int i = 0; i; i++) 98 c[i] = a[i]; 99 100 #pragma omp target teams distribute simd 101 // omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 102 // expected-error@+1 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}} 103 for (int i = 0; jj < kk; ii++) 104 c[i] = a[i]; 105 106 #pragma omp target teams distribute simd 107 // omp4-error@+1 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 108 for (int i = 0; !!i; i++) 109 c[i] = a[i]; 110 111 // omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 112 #pragma omp target teams distribute simd 113 for (int i = 0; i != 1; i++) 114 c[i] = a[i]; 115 116 #pragma omp target teams distribute simd 117 // omp4-error@+1 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 118 for (int i = 0;; i++) 119 c[i] = a[i]; 120 121 // Ok. 122 #pragma omp target teams distribute simd 123 for (int i = 11; i > 10; i--) 124 c[i] = a[i]; 125 126 // Ok. 127 #pragma omp target teams distribute simd 128 for (int i = 0; i < 10; ++i) 129 c[i] = a[i]; 130 131 // Ok. 132 #pragma omp target teams distribute simd 133 for (ii = 0; ii < 10; ++ii) 134 c[ii] = a[ii]; 135 136 #pragma omp target teams distribute simd 137 // expected-error@+1 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 138 for (ii = 0; ii < 10; ++jj) 139 c[ii] = a[jj]; 140 141 #pragma omp target teams distribute simd 142 // expected-error@+1 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 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 target teams distribute simd 149 for (ii = 0; ii < 10; ii = ii + ii) 150 c[ii] = a[ii]; 151 152 #pragma omp target teams distribute simd 153 // expected-error@+1 {{expression must have integral or unscoped enumeration type, not 'float'}} 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 target teams distribute simd 159 for (ii = 0; ii < 10; ii = ii + (int)1.1f) 160 c[ii] = a[ii]; 161 162 #pragma omp target teams distribute simd 163 // expected-error@+1 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 164 for (ii = 0; ii < 10; jj = ii + 2) 165 c[ii] = a[ii]; 166 167 #pragma omp target teams distribute simd 168 // expected-warning@+2 {{relational comparison result unused}} 169 // expected-error@+1 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 170 for (ii = 0; ii<10; jj> kk + 2) 171 c[ii] = a[ii]; 172 173 #pragma omp target teams distribute simd 174 // expected-error@+1 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 175 for (ii = 0; ii < 10;) 176 c[ii] = a[ii]; 177 178 #pragma omp target teams distribute simd 179 // expected-warning@+2 {{expression result unused}} 180 // expected-error@+1 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 181 for (ii = 0; ii < 10; !ii) 182 c[ii] = a[ii]; 183 184 #pragma omp target teams distribute simd 185 // expected-error@+1 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 186 for (ii = 0; ii < 10; ii ? ++ii : ++jj) 187 c[ii] = a[ii]; 188 189 #pragma omp target teams distribute simd 190 // expected-error@+1 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 191 for (ii = 0; ii < 10; ii = ii < 10) 192 c[ii] = a[ii]; 193 194 #pragma omp target teams distribute simd 195 // expected-note@+2 {{loop step is expected to be positive due to this condition}} 196 // expected-error@+1 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 197 for (ii = 0; ii < 10; ii = ii + 0) 198 c[ii] = a[ii]; 199 200 #pragma omp target teams distribute simd 201 // expected-note@+2 {{loop step is expected to be positive due to this condition}} 202 // expected-error@+1 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 203 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45)) 204 c[ii] = a[ii]; 205 206 #pragma omp target teams distribute simd 207 // expected-note@+2 {{loop step is expected to be positive due to this condition}} 208 // expected-error@+1 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 209 for (ii = 0; (ii) < 10; ii -= 25) 210 c[ii] = a[ii]; 211 212 #pragma omp target teams distribute simd 213 // expected-note@+2 {{loop step is expected to be positive due to this condition}} 214 // expected-error@+1 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 215 for (ii = 0; (ii < 10); ii -= 0) 216 c[ii] = a[ii]; 217 218 #pragma omp target teams distribute simd 219 // expected-note@+2 {{loop step is expected to be negative due to this condition}} 220 // expected-error@+1 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 221 for (ii = 0; ii > 10; (ii += 0)) 222 c[ii] = a[ii]; 223 224 #pragma omp target teams distribute simd 225 // expected-note@+2 {{loop step is expected to be positive due to this condition}} 226 // expected-error@+1 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 227 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii)) 228 c[ii] = a[ii]; 229 230 #pragma omp target teams distribute simd 231 // expected-note@+2 {{loop step is expected to be negative due to this condition}} 232 // expected-error@+1 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 233 for ((ii = 0); ii > 10; (ii -= 0)) 234 c[ii] = a[ii]; 235 236 #pragma omp target teams distribute simd 237 // expected-note@+2 {{loop step is expected to be positive due to this condition}} 238 // expected-error@+1 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 239 for (ii = 0; (ii < 10); (ii -= 0)) 240 c[ii] = a[ii]; 241 242 #pragma omp target teams distribute simd firstprivate(ii) // expected-note {{defined as firstprivate}} 243 // expected-error@+1 {{loop iteration variable in the associated loop of 'omp target teams distribute simd' directive may not be firstprivate, predetermined as linear}} 244 for (ii = 0; ii < 10; ii++) 245 c[ii] = a[ii]; 246 247 #pragma omp target teams distribute simd private(ii) // expected-note {{defined as private}} 248 // expected-error@+1 {{loop iteration variable in the associated loop of 'omp target teams distribute simd' directive may not be private, predetermined as linear}} 249 for (ii = 0; ii < 10; ii++) 250 c[ii] = a[ii]; 251 252 #pragma omp target teams distribute simd lastprivate(ii) // expected-note {{defined as lastprivate}} 253 // expected-error@+1 {{loop iteration variable in the associated loop of 'omp target teams distribute simd' directive may not be lastprivate, predetermined as linear}} 254 for (ii = 0; ii < 10; ii++) 255 c[ii] = a[ii]; 256 257 #pragma omp target teams distribute simd 258 // expected-error@+1 {{loop iteration variable in the associated loop of 'omp target teams distribute simd' directive may not be threadprivate or thread local, predetermined as linear}} 259 for (sii = 0; sii < 10; sii++) 260 c[sii] = a[sii]; 261 262 { 263 #pragma omp target teams distribute simd collapse(2) 264 for (ii = 0; ii < 10; ii += 1) 265 for (globalii = 0; globalii < 10; globalii += 1) 266 c[globalii] += a[globalii] + ii; 267 } 268 269 #pragma omp target teams distribute simd 270 // expected-error@+1 {{statement after '#pragma omp target teams distribute simd' must be a for loop}} 271 for (auto &item : a) { 272 item = item + 1; 273 } 274 275 #pragma omp target teams distribute simd 276 // expected-note@+2 {{loop step is expected to be positive due to this condition}} 277 // expected-error@+1 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}} 278 for (unsigned i = 9; i < 10; i--) { 279 c[i] = a[i] + b[i]; 280 } 281 282 int(*lb)[4] = nullptr; 283 #pragma omp target teams distribute simd 284 for (int(*p)[4] = lb; p < lb + 8; ++p) { 285 } 286 287 #pragma omp target teams distribute simd 288 // expected-warning@+1 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 289 for (int a{0}; a < 10; ++a) { 290 } 291 292 return 0; 293 } 294 295 // Iterators allowed in openmp for-loops. 296 namespace std { 297 struct random_access_iterator_tag {}; 298 template <class Iter> 299 struct iterator_traits { 300 typedef typename Iter::difference_type difference_type; 301 typedef typename Iter::iterator_category iterator_category; 302 }; 303 template <class Iter> 304 typename iterator_traits<Iter>::difference_type 305 distance(Iter first, Iter last) { return first - last; } 306 } 307 class Iter0 { 308 public: 309 Iter0() {} 310 Iter0(const Iter0 &) {} 311 Iter0 operator++() { return *this; } 312 Iter0 operator--() { return *this; } 313 bool operator<(Iter0 a) { return true; } 314 }; 315 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}} 316 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}} 317 int operator-(Iter0 a, Iter0 b) { return 0; } 318 class Iter1 { 319 public: 320 Iter1(float f = 0.0f, double d = 0.0) {} 321 Iter1(const Iter1 &) {} 322 Iter1 operator++() { return *this; } 323 Iter1 operator--() { return *this; } 324 bool operator<(Iter1 a) { return true; } 325 bool operator>=(Iter1 a) { return false; } 326 }; 327 class GoodIter { 328 public: 329 GoodIter() {} 330 GoodIter(const GoodIter &) {} 331 GoodIter(int fst, int snd) {} 332 GoodIter &operator=(const GoodIter &that) { return *this; } 333 GoodIter &operator=(const Iter0 &that) { return *this; } 334 GoodIter &operator+=(int x) { return *this; } 335 explicit GoodIter(void *) {} 336 GoodIter operator++() { return *this; } 337 GoodIter operator--() { return *this; } 338 bool operator!() { return true; } 339 bool operator<(GoodIter a) { return true; } 340 bool operator<=(GoodIter a) { return true; } 341 bool operator>=(GoodIter a) { return false; } 342 typedef int difference_type; 343 typedef std::random_access_iterator_tag iterator_category; 344 }; 345 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}} 346 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 347 int operator-(GoodIter a, GoodIter b) { return 0; } 348 // expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}} 349 GoodIter operator-(GoodIter a) { return a; } 350 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}} 351 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 352 GoodIter operator-(GoodIter a, int v) { return GoodIter(); } 353 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}} 354 GoodIter operator+(GoodIter a, int v) { return GoodIter(); } 355 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}} 356 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}} 357 GoodIter operator-(int v, GoodIter a) { return GoodIter(); } 358 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}} 359 GoodIter operator+(int v, GoodIter a) { return GoodIter(); } 360 361 int test_with_random_access_iterator() { 362 GoodIter begin, end; 363 Iter0 begin0, end0; 364 #pragma omp target teams distribute simd 365 for (GoodIter I = begin; I < end; ++I) 366 ++I; 367 #pragma omp target teams distribute simd 368 // expected-error@+1 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 369 for (GoodIter &I = begin; I < end; ++I) 370 ++I; 371 #pragma omp target teams distribute simd 372 for (GoodIter I = begin; I >= end; --I) 373 ++I; 374 #pragma omp target teams distribute simd 375 // expected-warning@+1 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 376 for (GoodIter I(begin); I < end; ++I) 377 ++I; 378 #pragma omp target teams distribute simd 379 // expected-warning@+1 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 380 for (GoodIter I(nullptr); I < end; ++I) 381 ++I; 382 #pragma omp target teams distribute simd 383 // expected-warning@+1 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 384 for (GoodIter I(0); I < end; ++I) 385 ++I; 386 #pragma omp target teams distribute simd 387 // expected-warning@+1 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 388 for (GoodIter I(1, 2); I < end; ++I) 389 ++I; 390 #pragma omp target teams distribute simd 391 for (begin = GoodIter(0); begin < end; ++begin) 392 ++begin; 393 #pragma omp target teams distribute simd 394 // expected-error@+2 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}} 395 // expected-error@+1 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 396 for (begin = begin0; begin < end; ++begin) 397 ++begin; 398 #pragma omp target teams distribute simd 399 // expected-error@+1 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 400 for (++begin; begin < end; ++begin) 401 ++begin; 402 #pragma omp target teams distribute simd 403 for (begin = end; begin < end; ++begin) 404 ++begin; 405 #pragma omp target teams distribute simd 406 // omp4-error@+1 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 407 for (GoodIter I = begin; I - I; ++I) 408 ++I; 409 #pragma omp target teams distribute simd 410 // omp4-error@+1 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 411 for (GoodIter I = begin; begin < end; ++I) 412 ++I; 413 #pragma omp target teams distribute simd 414 // omp4-error@+1 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 415 for (GoodIter I = begin; !I; ++I) 416 ++I; 417 #pragma omp target teams distribute simd 418 // expected-note@+2 {{loop step is expected to be negative due to this condition}} 419 // expected-error@+1 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 420 for (GoodIter I = begin; I >= end; I = I + 1) 421 ++I; 422 #pragma omp target teams distribute simd 423 for (GoodIter I = begin; I >= end; I = I - 1) 424 ++I; 425 #pragma omp target teams distribute simd 426 // expected-error@+1 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 427 for (GoodIter I = begin; I >= end; I = -I) 428 ++I; 429 #pragma omp target teams distribute simd 430 // expected-note@+2 {{loop step is expected to be negative due to this condition}} 431 // expected-error@+1 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 432 for (GoodIter I = begin; I >= end; I = 2 + I) 433 ++I; 434 #pragma omp target teams distribute simd 435 // expected-error@+1 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 436 for (GoodIter I = begin; I >= end; I = 2 - I) 437 ++I; 438 #pragma omp target teams distribute simd 439 // expected-error@+1 {{invalid operands to binary expression ('Iter0' and 'int')}} 440 for (Iter0 I = begin0; I < end0; ++I) 441 ++I; 442 #pragma omp target teams distribute simd 443 // Initializer is constructor without params. 444 // expected-error@+2 {{invalid operands to binary expression ('Iter0' and 'int')}} 445 // expected-warning@+1 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 446 for (Iter0 I; I < end0; ++I) 447 ++I; 448 Iter1 begin1, end1; 449 #pragma omp target teams distribute simd 450 // expected-error@+2 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 451 // expected-error@+1 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 452 for (Iter1 I = begin1; I < end1; ++I) 453 ++I; 454 #pragma omp target teams distribute simd 455 // expected-note@+2 {{loop step is expected to be negative due to this condition}} 456 // expected-error@+1 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 457 for (Iter1 I = begin1; I >= end1; ++I) 458 ++I; 459 #pragma omp target teams distribute simd 460 // expected-error@+4 {{invalid operands to binary expression ('Iter1' and 'float')}} 461 // expected-error@+3 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 462 // Initializer is constructor with all default params. 463 // expected-warning@+1 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 464 for (Iter1 I; I < end1; ++I) { 465 } 466 return 0; 467 } 468 469 template <typename IT, int ST> 470 class TC { 471 public: 472 int dotest_lt(IT begin, IT end) { 473 #pragma omp target teams distribute simd 474 // expected-note@+2 {{loop step is expected to be positive due to this condition}} 475 // expected-error@+1 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 476 for (IT I = begin; I < end; I = I + ST) { 477 ++I; 478 } 479 #pragma omp target teams distribute simd 480 // expected-note@+2 {{loop step is expected to be positive due to this condition}} 481 // expected-error@+1 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 482 for (IT I = begin; I <= end; I += ST) { 483 ++I; 484 } 485 #pragma omp target teams distribute simd 486 for (IT I = begin; I < end; ++I) { 487 ++I; 488 } 489 } 490 491 static IT step() { 492 return IT(ST); 493 } 494 }; 495 template <typename IT, int ST = 0> 496 int dotest_gt(IT begin, IT end) { 497 #pragma omp target teams distribute simd 498 // expected-note@+2 2 {{loop step is expected to be negative due to this condition}} 499 // expected-error@+1 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 500 for (IT I = begin; I >= end; I = I + ST) { 501 ++I; 502 } 503 #pragma omp target teams distribute simd 504 // expected-note@+2 2 {{loop step is expected to be negative due to this condition}} 505 // expected-error@+1 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 506 for (IT I = begin; I >= end; I += ST) { 507 ++I; 508 } 509 510 #pragma omp target teams distribute simd 511 // expected-note@+2 {{loop step is expected to be negative due to this condition}} 512 // expected-error@+1 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 513 for (IT I = begin; I >= end; ++I) { 514 ++I; 515 } 516 517 #pragma omp target teams distribute simd 518 for (IT I = begin; I < end; I += TC<int, ST>::step()) { 519 ++I; 520 } 521 } 522 523 void test_with_template() { 524 GoodIter begin, end; 525 TC<GoodIter, 100> t1; 526 TC<GoodIter, -100> t2; 527 t1.dotest_lt(begin, end); 528 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}} 529 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}} 530 dotest_gt<unsigned, 10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, 10>' requested here}} 531 } 532 533 void test_loop_break() { 534 const int N = 100; 535 float a[N], b[N], c[N]; 536 #pragma omp target teams distribute simd 537 for (int i = 0; i < 10; i++) { 538 c[i] = a[i] + b[i]; 539 for (int j = 0; j < 10; ++j) { 540 if (a[i] > b[j]) 541 break; // OK in nested loop 542 } 543 switch (i) { 544 case 1: 545 b[i]++; 546 break; 547 default: 548 break; 549 } 550 if (c[i] > 10) 551 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 552 553 if (c[i] > 11) 554 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 555 } 556 557 #pragma omp target teams distribute simd 558 for (int i = 0; i < 10; i++) { 559 for (int j = 0; j < 10; j++) { 560 c[i] = a[i] + b[i]; 561 if (c[i] > 10) { 562 if (c[i] < 20) { 563 break; // OK 564 } 565 } 566 } 567 } 568 } 569 570 void test_loop_eh() { 571 const int N = 100; 572 float a[N], b[N], c[N]; 573 #pragma omp target teams distribute simd 574 for (int i = 0; i < 10; i++) { 575 c[i] = a[i] + b[i]; 576 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}} 577 for (int j = 0; j < 10; ++j) { 578 if (a[i] > b[j]) 579 throw a[i]; // expected-error {{throw' statement cannot be used in OpenMP simd region}} 580 } 581 throw a[i]; // expected-error {{throw' statement cannot be used in OpenMP simd region}} 582 } catch (float f) { 583 if (f > 0.1) 584 throw a[i]; // expected-error {{throw' statement cannot be used in OpenMP simd region}} 585 return; // expected-error {{cannot return from OpenMP region}} 586 } 587 switch (i) { 588 case 1: 589 b[i]++; 590 break; 591 default: 592 break; 593 } 594 for (int j = 0; j < 10; j++) { 595 if (c[i] > 10) 596 throw c[i]; // expected-error {{throw' statement cannot be used in OpenMP simd region}} 597 } 598 } 599 if (c[9] > 10) 600 throw c[9]; // OK 601 602 #pragma omp target teams distribute simd 603 for (int i = 0; i < 10; ++i) { 604 struct S { 605 void g() { throw 0; } 606 }; 607 } 608 } 609 610 void test_loop_firstprivate_lastprivate() { 611 S s(4); 612 // expected-error@+1 {{lastprivate variable cannot be firstprivate}} expected-note@+1 {{defined as lastprivate}} 613 #pragma omp target teams distribute simd lastprivate(s) firstprivate(s) // expected-error {{calling a private constructor of class 'S'}} 614 for (int i = 0; i < 16; ++i) 615 ; 616 } 617 618 void test_ordered() { 619 #pragma omp target teams distribute simd ordered // expected-error {{unexpected OpenMP clause 'ordered' in directive '#pragma omp target teams distribute simd'}} 620 for (int i = 0; i < 16; ++i) 621 ; 622 } 623 624 void test_nowait() { 625 // expected-error@+1 {{directive '#pragma omp target teams distribute simd' cannot contain more than one 'nowait' clause}} 626 #pragma omp target teams distribute simd nowait nowait 627 for (int i = 0; i < 16; ++i) 628 ; 629 } 630 631