1 // RUN: %clang_cc1 -fsyntax-only -fopenmp -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify %s -Wno-openmp-target 2 3 // RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify %s -Wno-openmp-target 4 5 class S { 6 int a; 7 S() : a(0) {} 8 9 public: 10 S(int v) : a(v) {} 11 S(const S &s) : a(s.a) {} 12 }; 13 14 static int sii; 15 // expected-note@+1 {{defined as threadprivate or thread local}} 16 #pragma omp threadprivate(sii) 17 static int globalii; 18 19 int test_iteration_spaces() { 20 const int N = 100; 21 float a[N], b[N], c[N]; 22 int ii, jj, kk; 23 float fii; 24 double dii; 25 #pragma omp target parallel for simd 26 for (int i = 0; i < 10; i += 1) { 27 c[i] = a[i] + b[i]; 28 } 29 #pragma omp target parallel for simd 30 for (char i = 0; i < 10; i++) { 31 c[i] = a[i] + b[i]; 32 } 33 #pragma omp target parallel for simd 34 for (char i = 0; i < 10; i += '\1') { 35 c[i] = a[i] + b[i]; 36 } 37 #pragma omp target parallel for simd 38 for (long long i = 0; i < 10; i++) { 39 c[i] = a[i] + b[i]; 40 } 41 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}} 42 #pragma omp target parallel for simd 43 for (long long i = 0; i < 10; i += 1.5) { 44 c[i] = a[i] + b[i]; 45 } 46 #pragma omp target parallel for simd 47 for (long long i = 0; i < 'z'; i += 1u) { 48 c[i] = a[i] + b[i]; 49 } 50 // expected-error@+2 {{variable must be of integer or random access iterator type}} 51 #pragma omp target parallel for simd 52 for (float fi = 0; fi < 10.0; fi++) { 53 c[(int)fi] = a[(int)fi] + b[(int)fi]; 54 } 55 // expected-error@+2 {{variable must be of integer or random access iterator type}} 56 #pragma omp target parallel for simd 57 for (double fi = 0; fi < 10.0; fi++) { 58 c[(int)fi] = a[(int)fi] + b[(int)fi]; 59 } 60 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 61 #pragma omp target parallel for simd 62 for (int &ref = ii; ref < 10; ref++) { 63 } 64 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 65 #pragma omp target parallel for simd 66 for (int i; i < 10; i++) 67 c[i] = a[i]; 68 69 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 70 #pragma omp target parallel for simd 71 for (int i = 0, j = 0; i < 10; ++i) 72 c[i] = a[i]; 73 74 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 75 #pragma omp target parallel for simd 76 for (; ii < 10; ++ii) 77 c[ii] = a[ii]; 78 79 // expected-warning@+3 {{expression result unused}} 80 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 81 #pragma omp target parallel for simd 82 for (ii + 1; ii < 10; ++ii) 83 c[ii] = a[ii]; 84 85 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 86 #pragma omp target parallel for simd 87 for (c[ii] = 0; ii < 10; ++ii) 88 c[ii] = a[ii]; 89 90 // Ok to skip parenthesises. 91 #pragma omp target parallel for simd 92 for (((ii)) = 0; ii < 10; ++ii) 93 c[ii] = a[ii]; 94 95 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 96 #pragma omp target parallel for simd 97 for (int i = 0; i; i++) 98 c[i] = a[i]; 99 100 // expected-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 101 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}} 102 #pragma omp target parallel for simd 103 for (int i = 0; jj < kk; ii++) 104 c[i] = a[i]; 105 106 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 107 #pragma omp target parallel for simd 108 for (int i = 0; !!i; i++) 109 c[i] = a[i]; 110 111 // Ok 112 #pragma omp target parallel for simd 113 for (int i = 0; i != 1; i++) 114 c[i] = a[i]; 115 116 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 117 #pragma omp target parallel for simd 118 for (int i = 0;; i++) 119 c[i] = a[i]; 120 121 // Ok. 122 #pragma omp target parallel for simd 123 for (int i = 11; i > 10; i--) 124 c[i] = a[i]; 125 126 // Ok. 127 #pragma omp target parallel for simd 128 for (int i = 0; i < 10; ++i) 129 c[i] = a[i]; 130 131 // Ok. 132 #pragma omp target parallel for simd 133 for (ii = 0; ii < 10; ++ii) 134 c[ii] = a[ii]; 135 136 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 137 #pragma omp target parallel for simd 138 for (ii = 0; ii < 10; ++jj) 139 c[ii] = a[jj]; 140 141 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 142 #pragma omp target parallel for simd 143 for (ii = 0; ii < 10; ++++ii) 144 c[ii] = a[ii]; 145 146 // Ok but undefined behavior (in general, cannot check that incr 147 // is really loop-invariant). 148 #pragma omp target parallel for simd 149 for (ii = 0; ii < 10; ii = ii + ii) 150 c[ii] = a[ii]; 151 152 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}} 153 #pragma omp target parallel for simd 154 for (ii = 0; ii < 10; ii = ii + 1.0f) 155 c[ii] = a[ii]; 156 157 // Ok - step was converted to integer type. 158 #pragma omp target parallel for simd 159 for (ii = 0; ii < 10; ii = ii + (int)1.1f) 160 c[ii] = a[ii]; 161 162 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 163 #pragma omp target parallel for simd 164 for (ii = 0; ii < 10; jj = ii + 2) 165 c[ii] = a[ii]; 166 167 // expected-warning@+3 {{relational comparison result unused}} 168 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 169 #pragma omp target parallel for simd 170 for (ii = 0; ii<10; jj> kk + 2) 171 c[ii] = a[ii]; 172 173 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 174 #pragma omp target parallel for simd 175 for (ii = 0; ii < 10;) 176 c[ii] = a[ii]; 177 178 // expected-warning@+3 {{expression result unused}} 179 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 180 #pragma omp target parallel for simd 181 for (ii = 0; ii < 10; !ii) 182 c[ii] = a[ii]; 183 184 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 185 #pragma omp target parallel for simd 186 for (ii = 0; ii < 10; ii ? ++ii : ++jj) 187 c[ii] = a[ii]; 188 189 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 190 #pragma omp target parallel for simd 191 for (ii = 0; ii < 10; ii = ii < 10) 192 c[ii] = a[ii]; 193 194 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 195 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 196 #pragma omp target parallel for simd 197 for (ii = 0; ii < 10; ii = ii + 0) 198 c[ii] = a[ii]; 199 200 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 201 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 202 #pragma omp target parallel for simd 203 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45)) 204 c[ii] = a[ii]; 205 206 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 207 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 208 #pragma omp target parallel for simd 209 for (ii = 0; (ii) < 10; ii -= 25) 210 c[ii] = a[ii]; 211 212 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 213 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 214 #pragma omp target parallel for simd 215 for (ii = 0; (ii < 10); ii -= 0) 216 c[ii] = a[ii]; 217 218 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 219 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 220 #pragma omp target parallel for simd 221 for (ii = 0; ii > 10; (ii += 0)) 222 c[ii] = a[ii]; 223 224 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 225 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 226 #pragma omp target parallel for simd 227 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii)) 228 c[ii] = a[ii]; 229 230 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 231 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 232 #pragma omp target parallel for simd 233 for ((ii = 0); ii > 10; (ii -= 0)) 234 c[ii] = a[ii]; 235 236 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 237 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 238 #pragma omp target parallel for simd 239 for (ii = 0; (ii < 10); (ii -= 0)) 240 c[ii] = a[ii]; 241 242 // expected-note@+2 {{defined as firstprivate}} 243 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp target parallel for simd' directive may not be firstprivate, predetermined as linear}} 244 #pragma omp target parallel for simd firstprivate(ii) 245 for (ii = 0; ii < 10; ii++) 246 c[ii] = a[ii]; 247 248 #pragma omp target parallel for simd linear(ii) 249 for (ii = 0; ii < 10; ii++) 250 c[ii] = a[ii]; 251 252 // expected-note@+2 {{defined as private}} 253 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp target parallel for simd' directive may not be private, predetermined as linear}} 254 #pragma omp target parallel for simd private(ii) 255 for (ii = 0; ii < 10; ii++) 256 c[ii] = a[ii]; 257 258 // expected-note@+2 {{defined as lastprivate}} 259 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp target parallel for simd' directive may not be lastprivate, predetermined as linear}} 260 #pragma omp target parallel for simd lastprivate(ii) 261 for (ii = 0; ii < 10; ii++) 262 c[ii] = a[ii]; 263 264 { 265 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp target parallel for simd' directive may not be threadprivate or thread local, predetermined as linear}} 266 #pragma omp target parallel for simd 267 for (sii = 0; sii < 10; sii += 1) 268 c[sii] = a[sii]; 269 } 270 271 { 272 #pragma omp target parallel for simd 273 for (globalii = 0; globalii < 10; globalii += 1) 274 c[globalii] = a[globalii]; 275 } 276 277 { 278 #pragma omp target parallel for simd collapse(2) 279 for (ii = 0; ii < 10; ii += 1) 280 for (globalii = 0; globalii < 10; globalii += 1) 281 c[globalii] += a[globalii] + ii; 282 } 283 284 // expected-error@+2 {{statement after '#pragma omp target parallel for simd' must be a for loop}} 285 #pragma omp target parallel for simd 286 for (auto &item : a) { 287 item = item + 1; 288 } 289 290 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 291 // expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}} 292 #pragma omp target parallel for simd 293 for (unsigned i = 9; i < 10; i--) { 294 c[i] = a[i] + b[i]; 295 } 296 297 int(*lb)[4] = nullptr; 298 #pragma omp target parallel for simd 299 for (int(*p)[4] = lb; p < lb + 8; ++p) { 300 } 301 302 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 303 #pragma omp target parallel for simd 304 for (int a{0}; a < 10; ++a) { 305 } 306 307 return 0; 308 } 309 310 // Iterators allowed in openmp for-loops. 311 namespace std { 312 struct random_access_iterator_tag {}; 313 template <class Iter> 314 struct iterator_traits { 315 typedef typename Iter::difference_type difference_type; 316 typedef typename Iter::iterator_category iterator_category; 317 }; 318 template <class Iter> 319 typename iterator_traits<Iter>::difference_type 320 distance(Iter first, Iter last) { return first - last; } 321 } 322 class Iter0 { 323 public: 324 Iter0() {} 325 Iter0(const Iter0 &) {} 326 Iter0 operator++() { return *this; } 327 Iter0 operator--() { return *this; } 328 bool operator<(Iter0 a) { return true; } 329 }; 330 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}} 331 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}} 332 int operator-(Iter0 a, Iter0 b) { return 0; } 333 class Iter1 { 334 public: 335 Iter1(float f = 0.0f, double d = 0.0) {} 336 Iter1(const Iter1 &) {} 337 Iter1 operator++() { return *this; } 338 Iter1 operator--() { return *this; } 339 bool operator<(Iter1 a) { return true; } 340 bool operator>=(Iter1 a) { return false; } 341 }; 342 class GoodIter { 343 public: 344 GoodIter() {} 345 GoodIter(const GoodIter &) {} 346 GoodIter(int fst, int snd) {} 347 GoodIter &operator=(const GoodIter &that) { return *this; } 348 GoodIter &operator=(const Iter0 &that) { return *this; } 349 GoodIter &operator+=(int x) { return *this; } 350 GoodIter &operator-=(int x) { return *this; } 351 explicit GoodIter(void *) {} 352 GoodIter operator++() { return *this; } 353 GoodIter operator--() { return *this; } 354 bool operator!() { return true; } 355 bool operator<(GoodIter a) { return true; } 356 bool operator<=(GoodIter a) { return true; } 357 bool operator>=(GoodIter a) { return false; } 358 typedef int difference_type; 359 typedef std::random_access_iterator_tag iterator_category; 360 }; 361 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}} 362 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 363 int operator-(GoodIter a, GoodIter b) { return 0; } 364 // expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}} 365 GoodIter operator-(GoodIter a) { return a; } 366 // expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}} 367 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 368 GoodIter operator-(GoodIter a, int v) { return GoodIter(); } 369 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}} 370 GoodIter operator+(GoodIter a, int v) { return GoodIter(); } 371 // expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}} 372 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}} 373 GoodIter operator-(int v, GoodIter a) { return GoodIter(); } 374 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}} 375 GoodIter operator+(int v, GoodIter a) { return GoodIter(); } 376 377 int test_with_random_access_iterator() { 378 GoodIter begin, end; 379 Iter0 begin0, end0; 380 #pragma omp target parallel for simd 381 for (GoodIter I = begin; I < end; ++I) 382 ++I; 383 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 384 #pragma omp target parallel for simd 385 for (GoodIter &I = begin; I < end; ++I) 386 ++I; 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(begin); 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(nullptr); 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(0); I < end; ++I) 401 ++I; 402 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 403 #pragma omp target parallel for simd 404 for (GoodIter I(1, 2); I < end; ++I) 405 ++I; 406 #pragma omp target parallel for simd 407 for (begin = GoodIter(0); begin < end; ++begin) 408 ++begin; 409 // expected-error@+3 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}} 410 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 411 #pragma omp target parallel for simd 412 for (begin = begin0; begin < end; ++begin) 413 ++begin; 414 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 415 #pragma omp target parallel for simd 416 for (++begin; begin < end; ++begin) 417 ++begin; 418 #pragma omp target parallel for simd 419 for (begin = end; begin < end; ++begin) 420 ++begin; 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; I - I; ++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; begin < end; ++I) 428 ++I; 429 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 430 #pragma omp target parallel for simd 431 for (GoodIter I = begin; !I; ++I) 432 ++I; 433 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 434 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 435 #pragma omp target parallel for simd 436 for (GoodIter I = begin; I >= end; I = I + 1) 437 ++I; 438 #pragma omp target parallel for simd 439 for (GoodIter I = begin; I >= end; I = I - 1) 440 ++I; 441 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 442 #pragma omp target parallel for simd 443 for (GoodIter I = begin; I >= end; I = -I) 444 ++I; 445 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 446 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 447 #pragma omp target parallel for simd 448 for (GoodIter I = begin; I >= end; I = 2 + I) 449 ++I; 450 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 451 #pragma omp target parallel for simd 452 for (GoodIter I = begin; I >= end; I = 2 - I) 453 ++I; 454 // expected-error@+2 {{invalid operands to binary expression ('Iter0' and 'int')}} 455 #pragma omp target parallel for simd 456 for (Iter0 I = begin0; I < end0; ++I) 457 ++I; 458 // Initializer is constructor without params. 459 // expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}} 460 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 461 #pragma omp target parallel for simd 462 for (Iter0 I; I < end0; ++I) 463 ++I; 464 Iter1 begin1, end1; 465 // expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 466 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 467 #pragma omp target parallel for simd 468 for (Iter1 I = begin1; I < end1; ++I) 469 ++I; 470 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 471 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 472 #pragma omp target parallel for simd 473 for (Iter1 I = begin1; I >= end1; ++I) 474 ++I; 475 // expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'float')}} 476 // expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 477 // Initializer is constructor with all default params. 478 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 479 #pragma omp target parallel for simd 480 for (Iter1 I; I < end1; ++I) { 481 } 482 return 0; 483 } 484 485 template <typename IT, int ST> 486 class TC { 487 public: 488 int dotest_lt(IT begin, IT end) { 489 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 490 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 491 #pragma omp target parallel for simd 492 for (IT I = begin; I < end; I = I + ST) { 493 ++I; 494 } 495 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 496 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 497 #pragma omp target parallel for simd 498 for (IT I = begin; I <= end; I += ST) { 499 ++I; 500 } 501 #pragma omp target parallel for simd 502 for (IT I = begin; I < end; ++I) { 503 ++I; 504 } 505 } 506 507 static IT step() { 508 return IT(ST); 509 } 510 }; 511 template <typename IT, int ST = 0> 512 int dotest_gt(IT begin, IT end) { 513 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 514 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 515 #pragma omp target parallel for simd 516 for (IT I = begin; I >= end; I = I + ST) { 517 ++I; 518 } 519 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 520 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 521 #pragma omp target parallel for simd 522 for (IT I = begin; I >= end; I += ST) { 523 ++I; 524 } 525 526 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 527 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 528 #pragma omp target parallel for simd 529 for (IT I = begin; I >= end; ++I) { 530 ++I; 531 } 532 533 #pragma omp target parallel for simd 534 for (IT I = begin; I < end; I += TC<int, ST>::step()) { 535 ++I; 536 } 537 } 538 539 void test_with_template() { 540 GoodIter begin, end; 541 TC<GoodIter, 100> t1; 542 TC<GoodIter, -100> t2; 543 t1.dotest_lt(begin, end); 544 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}} 545 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}} 546 dotest_gt<unsigned, 10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, 10>' requested here}} 547 } 548 549 void test_loop_break() { 550 const int N = 100; 551 float a[N], b[N], c[N]; 552 #pragma omp target parallel for simd 553 for (int i = 0; i < 10; i++) { 554 c[i] = a[i] + b[i]; 555 for (int j = 0; j < 10; ++j) { 556 if (a[i] > b[j]) 557 break; // OK in nested loop 558 } 559 switch (i) { 560 case 1: 561 b[i]++; 562 break; 563 default: 564 break; 565 } 566 if (c[i] > 10) 567 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 568 569 if (c[i] > 11) 570 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 571 } 572 573 #pragma omp target parallel for simd 574 for (int i = 0; i < 10; i++) { 575 for (int j = 0; j < 10; j++) { 576 c[i] = a[i] + b[i]; 577 if (c[i] > 10) { 578 if (c[i] < 20) { 579 break; // OK 580 } 581 } 582 } 583 } 584 } 585 586 void test_loop_eh() { 587 const int N = 100; 588 float a[N], b[N], c[N]; 589 #pragma omp target parallel for simd 590 for (int i = 0; i < 10; i++) { 591 c[i] = a[i] + b[i]; 592 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}} 593 for (int j = 0; j < 10; ++j) { 594 if (a[i] > b[j]) 595 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 596 } 597 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 598 } catch (float f) { 599 if (f > 0.1) 600 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 601 return; // expected-error {{cannot return from OpenMP region}} 602 } 603 switch (i) { 604 case 1: 605 b[i]++; 606 break; 607 default: 608 break; 609 } 610 for (int j = 0; j < 10; j++) { 611 if (c[i] > 10) 612 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 613 } 614 } 615 if (c[9] > 10) 616 throw c[9]; // OK 617 618 #pragma omp target parallel for simd 619 for (int i = 0; i < 10; ++i) { 620 struct S { 621 void g() { throw 0; } 622 }; 623 } 624 } 625 626 void test_loop_firstprivate_lastprivate() { 627 S s(4); 628 #pragma omp target parallel for simd lastprivate(s) firstprivate(s) 629 for (int i = 0; i < 16; ++i) 630 ; 631 } 632