1 // RUN: %clang_cc1 -fsyntax-only -fopenmp -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify %s 2 // RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify %s 3 // RUN: %clang_cc1 -fsyntax-only -fopenmp -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify %s -fopenmp-version=50 -DOMP50 4 // RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify %s -fopenmp-version=50 -DOMP50 5 6 static int sii; 7 // expected-note@+1 {{defined as threadprivate or thread local}} 8 #pragma omp threadprivate(sii) 9 static int globalii; 10 11 struct S { 12 // expected-note@+1 {{static data member is predetermined as shared}} 13 static int ssi; 14 }; 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 simd linear(S::ssi) 23 for (S::ssi = 0; S::ssi < 10; ++S::ssi) 24 ; 25 // expected-error@+1 {{shared variable cannot be private}} 26 #pragma omp simd private(S::ssi) 27 for (S::ssi = 0; S::ssi < 10; ++S::ssi) 28 ; 29 #pragma omp simd // no messages expected 30 for (S::ssi = 0; S::ssi < 10; ++S::ssi) 31 ; 32 #pragma omp simd 33 for (int i = 0; i < 10; i+=1) { 34 c[i] = a[i] + b[i]; 35 } 36 #pragma omp simd 37 for (char i = 0; i < 10; i++) { 38 c[i] = a[i] + b[i]; 39 } 40 #pragma omp simd 41 for (char i = 0; i < 10; i+='\1') { 42 c[i] = a[i] + b[i]; 43 } 44 #pragma omp simd 45 for (long long i = 0; i < 10; i++) { 46 c[i] = a[i] + b[i]; 47 } 48 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}} 49 #pragma omp simd 50 for (long long i = 0; i < 10; i+=1.5) { 51 c[i] = a[i] + b[i]; 52 } 53 #pragma omp simd 54 for (long long i = 0; i < 'z'; i+=1u) { 55 c[i] = a[i] + b[i]; 56 } 57 // expected-error@+2 {{variable must be of integer or random access iterator type}} 58 #pragma omp simd 59 for (float fi = 0; fi < 10.0; fi++) { 60 c[(int)fi] = a[(int)fi] + b[(int)fi]; 61 } 62 // expected-error@+2 {{variable must be of integer or random access iterator type}} 63 #pragma omp simd 64 for (double fi = 0; fi < 10.0; fi++) { 65 c[(int)fi] = a[(int)fi] + b[(int)fi]; 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 simd 69 for (int &ref = ii; ref < 10; ref++) { 70 } 71 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 72 #pragma omp simd 73 for (int i; i < 10; i++) 74 c[i] = a[i]; 75 76 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 77 #pragma omp simd 78 for (int i = 0, j = 0; i < 10; ++i) 79 c[i] = a[i]; 80 81 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 82 #pragma omp simd 83 for (;ii < 10; ++ii) 84 c[ii] = a[ii]; 85 86 // expected-warning@+3 {{expression result unused}} 87 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 88 #pragma omp simd 89 for (ii + 1;ii < 10; ++ii) 90 c[ii] = a[ii]; 91 92 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 93 #pragma omp simd 94 for (c[ii] = 0;ii < 10; ++ii) 95 c[ii] = a[ii]; 96 97 // Ok to skip parenthesises. 98 #pragma omp simd 99 for (((ii)) = 0;ii < 10; ++ii) 100 c[ii] = a[ii]; 101 102 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 103 #pragma omp simd 104 for (int i = 0; i; i++) 105 c[i] = a[i]; 106 107 // expected-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 108 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}} 109 #pragma omp simd 110 for (int i = 0; jj < kk; ii++) 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 simd 115 for (int i = 0; !!i; i++) 116 c[i] = a[i]; 117 118 // Ok 119 #pragma omp simd 120 for (int i = 0; i != 1; i++) 121 c[i] = a[i]; 122 123 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} 124 #pragma omp simd 125 for (int i = 0; ; i++) 126 c[i] = a[i]; 127 128 // Ok. 129 #pragma omp simd 130 for (int i = 11; i > 10; i--) 131 c[i] = a[i]; 132 133 // Ok. 134 #pragma omp simd 135 for (int i = 0; i < 10; ++i) 136 c[i] = a[i]; 137 138 // Ok. 139 #pragma omp simd 140 for (ii = 0; ii < 10; ++ii) 141 c[ii] = a[ii]; 142 143 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 144 #pragma omp simd 145 for (ii = 0; ii < 10; ++jj) 146 c[ii] = a[jj]; 147 148 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 149 #pragma omp simd 150 for (ii = 0; ii < 10; ++ ++ ii) 151 c[ii] = a[ii]; 152 153 // Ok but undefined behavior (in general, cannot check that incr 154 // is really loop-invariant). 155 #pragma omp simd 156 for (ii = 0; ii < 10; ii = ii + ii) 157 c[ii] = a[ii]; 158 159 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}} 160 #pragma omp simd 161 for (ii = 0; ii < 10; ii = ii + 1.0f) 162 c[ii] = a[ii]; 163 164 // Ok - step was converted to integer type. 165 #pragma omp simd 166 for (ii = 0; ii < 10; ii = ii + (int)1.1f) 167 c[ii] = a[ii]; 168 169 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 170 #pragma omp simd 171 for (ii = 0; ii < 10; jj = ii + 2) 172 c[ii] = a[ii]; 173 174 // expected-warning@+3 {{relational comparison result unused}} 175 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 176 #pragma omp simd 177 for (ii = 0; ii < 10; jj > kk + 2) 178 c[ii] = a[ii]; 179 180 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 181 #pragma omp simd 182 for (ii = 0; ii < 10;) 183 c[ii] = a[ii]; 184 185 // expected-warning@+3 {{expression result unused}} 186 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 187 #pragma omp simd 188 for (ii = 0; ii < 10; !ii) 189 c[ii] = a[ii]; 190 191 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 192 #pragma omp simd 193 for (ii = 0; ii < 10; ii ? ++ii : ++jj) 194 c[ii] = a[ii]; 195 196 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} 197 #pragma omp simd 198 for (ii = 0; ii < 10; ii = ii < 10) 199 c[ii] = a[ii]; 200 201 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 202 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 203 #pragma omp simd 204 for (ii = 0; ii < 10; ii = ii + 0) 205 c[ii] = a[ii]; 206 207 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 208 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 209 #pragma omp simd 210 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45)) 211 c[ii] = a[ii]; 212 213 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 214 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 215 #pragma omp simd 216 for (ii = 0; (ii) < 10; ii-=25) 217 c[ii] = a[ii]; 218 219 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 220 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 221 #pragma omp simd 222 for (ii = 0; (ii < 10); ii-=0) 223 c[ii] = a[ii]; 224 225 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 226 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 227 #pragma omp simd 228 for (ii = 0; ii > 10; (ii+=0)) 229 c[ii] = a[ii]; 230 231 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 232 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 233 #pragma omp simd 234 for (ii = 0; ii < 10; (ii) = (1-1)+(ii)) 235 c[ii] = a[ii]; 236 237 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 238 // expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}} 239 #pragma omp simd 240 for ((ii = 0); ii > 10; (ii-=0)) 241 c[ii] = a[ii]; 242 243 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 244 // expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}} 245 #pragma omp simd 246 for (ii = 0; (ii < 10); (ii-=0)) 247 c[ii] = a[ii]; 248 249 #ifndef OMP50 250 // expected-note@+3 {{defined as private}} 251 // expected-error@+3 {{loop iteration variable in the associated loop of 'omp simd' directive may not be private, predetermined as linear}} 252 #endif // OMP50 253 #pragma omp simd private(ii) 254 for (ii = 0; ii < 10; ii++) 255 c[ii] = a[ii]; 256 257 #ifndef OMP50 258 // expected-note@+3 {{defined as lastprivate}} 259 // expected-error@+3 {{loop iteration variable in the associated loop of 'omp simd' directive may not be lastprivate, predetermined as linear}} 260 #endif // OMP50 261 #pragma omp simd lastprivate(ii) 262 for (ii = 0; ii < 10; ii++) 263 c[ii] = a[ii]; 264 265 // expected-error@+1 {{unexpected OpenMP clause 'shared' in directive '#pragma omp simd'}} 266 #pragma omp simd shared(ii) 267 for (ii = 0; ii < 10; ii++) 268 c[ii] = a[ii]; 269 270 #pragma omp simd linear(ii) 271 for (ii = 0; ii < 10; ii++) 272 c[ii] = a[ii]; 273 274 #pragma omp simd lastprivate(ii) linear(jj) collapse(2) // expected-note {{defined as linear}} 275 for (ii = 0; ii < 10; ii++) 276 for (jj = 0; jj < 10; jj++) // expected-error {{loop iteration variable in the associated loop of 'omp simd' directive may not be linear, predetermined as lastprivate}} 277 c[ii] = a[jj]; 278 279 280 #pragma omp parallel 281 { 282 // expected-error@+2 {{loop iteration variable in the associated loop of 'omp simd' directive may not be threadprivate or thread local, predetermined as linear}} 283 #pragma omp simd 284 for (sii = 0; sii < 10; sii+=1) 285 c[sii] = a[sii]; 286 } 287 288 #pragma omp parallel 289 { 290 #pragma omp simd 291 for (globalii = 0; globalii < 10; globalii+=1) 292 c[globalii] = a[globalii]; 293 } 294 295 #pragma omp parallel 296 { 297 #pragma omp simd collapse(2) 298 for (ii = 0; ii < 10; ii += 1) 299 for (globalii = 0; globalii < 10; globalii += 1) 300 c[globalii] += a[globalii] + ii; 301 } 302 303 // expected-error@+2 {{statement after '#pragma omp simd' must be a for loop}} 304 #pragma omp simd 305 for (auto &item : a) { 306 item = item + 1; 307 } 308 309 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 310 // expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}} 311 #pragma omp simd 312 for (unsigned i = 9; i < 10; i--) { 313 c[i] = a[i] + b[i]; 314 } 315 316 int (*lb)[4] = nullptr; 317 #pragma omp simd 318 for (int (*p)[4] = lb; p < lb + 8; ++p) { 319 } 320 321 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 322 #pragma omp simd 323 for (int a{0}; a<10; ++a) { 324 } 325 326 return 0; 327 } 328 329 // Iterators allowed in openmp for-loops. 330 namespace std { 331 struct random_access_iterator_tag { }; 332 template <class Iter> struct iterator_traits { 333 typedef typename Iter::difference_type difference_type; 334 typedef typename Iter::iterator_category iterator_category; 335 }; 336 template <class Iter> 337 typename iterator_traits<Iter>::difference_type 338 distance(Iter first, Iter last) { return first - last; } 339 } 340 class Iter0 { 341 public: 342 Iter0() { } 343 Iter0(const Iter0 &) { } 344 Iter0 operator ++() { return *this; } 345 Iter0 operator --() { return *this; } 346 Iter0 operator + (int delta) { return *this; } 347 bool operator <(Iter0 a) { return true; } 348 }; 349 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}} 350 int operator -(Iter0 a, Iter0 b) { return 0; } 351 class Iter1 { 352 public: 353 Iter1(float f=0.0f, double d=0.0) { } 354 Iter1(const Iter1 &) { } 355 Iter1 operator ++() { return *this; } 356 Iter1 operator --() { return *this; } 357 bool operator <(Iter1 a) { return true; } 358 bool operator >=(Iter1 a) { return false; } 359 }; 360 class GoodIter { 361 public: 362 GoodIter() { } 363 GoodIter(const GoodIter &) { } 364 GoodIter(int fst, int snd) { } 365 GoodIter &operator =(const GoodIter &that) { return *this; } 366 GoodIter &operator =(const Iter0 &that) { return *this; } 367 GoodIter &operator +=(int x) { return *this; } 368 explicit GoodIter(void *) { } 369 GoodIter operator ++() { return *this; } 370 GoodIter operator --() { return *this; } 371 bool operator !() { return true; } 372 bool operator <(GoodIter a) { return true; } 373 bool operator <=(GoodIter a) { return true; } 374 bool operator >=(GoodIter a) { return false; } 375 typedef int difference_type; 376 typedef std::random_access_iterator_tag iterator_category; 377 }; 378 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 379 int operator -(GoodIter a, GoodIter b) { return 0; } 380 // expected-note@+1 2 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}} 381 GoodIter operator -(GoodIter a) { return a; } 382 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}} 383 GoodIter operator -(GoodIter a, int v) { return GoodIter(); } 384 GoodIter operator +(GoodIter a, int v) { return GoodIter(); } 385 // expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}} 386 GoodIter operator -(int v, GoodIter a) { return GoodIter(); } 387 GoodIter operator +(int v, GoodIter a) { return GoodIter(); } 388 389 int test_with_random_access_iterator() { 390 GoodIter begin, end; 391 Iter0 begin0, end0; 392 #pragma omp simd 393 for (GoodIter I = begin; I < end; ++I) 394 ++I; 395 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 396 #pragma omp simd 397 for (GoodIter &I = begin; I < end; ++I) 398 ++I; 399 #pragma omp simd 400 for (GoodIter I = begin; 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 simd 404 for (GoodIter I(begin); I < end; ++I) 405 ++I; 406 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 407 #pragma omp simd 408 for (GoodIter I(nullptr); I < end; ++I) 409 ++I; 410 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 411 #pragma omp simd 412 for (GoodIter I(0); I < end; ++I) 413 ++I; 414 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 415 #pragma omp simd 416 for (GoodIter I(1,2); I < end; ++I) 417 ++I; 418 #pragma omp simd 419 for (begin = GoodIter(0); begin < end; ++begin) 420 ++begin; 421 #pragma omp simd 422 for (begin = GoodIter(1,2); begin < end; ++begin) 423 ++begin; 424 // expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 425 #pragma omp simd 426 for (++begin; begin < end; ++begin) 427 ++begin; 428 #pragma omp simd 429 for (begin = end; begin < end; ++begin) 430 ++begin; 431 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 432 #pragma omp simd 433 for (GoodIter I = begin; I - I; ++I) 434 ++I; 435 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 436 #pragma omp simd 437 for (GoodIter I = begin; begin < end; ++I) 438 ++I; 439 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} 440 #pragma omp simd 441 for (GoodIter I = begin; !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 simd 446 for (GoodIter I = begin; I >= end; I = I + 1) 447 ++I; 448 #pragma omp simd 449 for (GoodIter I = begin; I >= end; I = I - 1) 450 ++I; 451 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 452 #pragma omp simd 453 for (GoodIter I = begin; I >= end; I = -I) 454 ++I; 455 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 456 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 457 #pragma omp simd 458 for (GoodIter I = begin; I >= end; I = 2 + I) 459 ++I; 460 // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} 461 #pragma omp simd 462 for (GoodIter I = begin; I >= end; I = 2 - I) 463 ++I; 464 #pragma omp simd 465 for (Iter0 I = begin0; I < end0; ++I) 466 ++I; 467 468 // Initializer is constructor without params. 469 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 470 #pragma omp simd 471 for (Iter0 I; I < end0; ++I) 472 ++I; 473 474 Iter1 begin1, end1; 475 // expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}} 476 // expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 477 #pragma omp simd 478 for (Iter1 I = begin1; I < end1; ++I) 479 ++I; 480 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 481 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 482 #pragma omp simd 483 for (Iter1 I = begin1; I >= end1; ++I) 484 ++I; 485 486 // Initializer is constructor with all default params. 487 // expected-error@+4 {{invalid operands to binary expression ('Iter1' and 'float')}} 488 // expected-error@+3 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}} 489 // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} 490 #pragma omp simd 491 for (Iter1 I; I < end1; ++I) { 492 } 493 494 return 0; 495 } 496 497 template <typename IT, int ST> class TC { 498 public: 499 int dotest_lt(IT begin, IT end) { 500 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 501 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 502 #pragma omp simd 503 for (IT I = begin; I < end; I = I + ST) { 504 ++I; 505 } 506 // expected-note@+3 {{loop step is expected to be positive due to this condition}} 507 // expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}} 508 #pragma omp simd 509 for (IT I = begin; I <= end; I += ST) { 510 ++I; 511 } 512 #pragma omp simd 513 for (IT I = begin; I < end; ++I) { 514 ++I; 515 } 516 } 517 518 static IT step() { 519 return IT(ST); 520 } 521 }; 522 template <typename IT, int ST=0> int dotest_gt(IT begin, IT end) { 523 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 524 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 525 #pragma omp simd 526 for (IT I = begin; I >= end; I = I + ST) { 527 ++I; 528 } 529 // expected-note@+3 2 {{loop step is expected to be negative due to this condition}} 530 // expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 531 #pragma omp simd 532 for (IT I = begin; I >= end; I += ST) { 533 ++I; 534 } 535 536 // expected-note@+3 {{loop step is expected to be negative due to this condition}} 537 // expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}} 538 #pragma omp simd 539 for (IT I = begin; I >= end; ++I) { 540 ++I; 541 } 542 543 #pragma omp simd 544 for (IT I = begin; I < end; I+=TC<int,ST>::step()) { 545 ++I; 546 } 547 } 548 549 void test_with_template() { 550 GoodIter begin, end; 551 TC<GoodIter, 100> t1; 552 TC<GoodIter, -100> t2; 553 t1.dotest_lt(begin, end); 554 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}} 555 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}} 556 dotest_gt<unsigned, 10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, 10>' requested here}} 557 } 558 559 void test_loop_break() { 560 const int N = 100; 561 float a[N], b[N], c[N]; 562 #pragma omp simd 563 for (int i = 0; i < 10; i++) { 564 c[i] = a[i] + b[i]; 565 for (int j = 0; j < 10; ++j) { 566 if (a[i] > b[j]) 567 break; // OK in nested loop 568 } 569 switch(i) { 570 case 1: 571 b[i]++; 572 break; 573 default: 574 break; 575 } 576 if (c[i] > 10) 577 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 578 579 if (c[i] > 11) 580 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}} 581 } 582 583 #pragma omp simd 584 for (int i = 0; i < 10; i++) { 585 for (int j = 0; j < 10; j++) { 586 c[i] = a[i] + b[i]; 587 if (c[i] > 10) { 588 if (c[i] < 20) { 589 break; // OK 590 } 591 } 592 } 593 } 594 } 595 596 void test_loop_eh() { 597 const int N = 100; 598 float a[N], b[N], c[N]; 599 #pragma omp simd 600 for (int i = 0; i < 10; i++) { 601 c[i] = a[i] + b[i]; 602 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}} 603 for (int j = 0; j < 10; ++j) { 604 if (a[i] > b[j]) 605 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 606 } 607 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 608 } 609 catch (float f) { 610 if (f > 0.1) 611 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 612 return; // expected-error {{cannot return from OpenMP region}} 613 } 614 switch(i) { 615 case 1: 616 b[i]++; 617 break; 618 default: 619 break; 620 } 621 for (int j = 0; j < 10; j++) { 622 if (c[i] > 10) 623 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}} 624 } 625 } 626 if (c[9] > 10) 627 throw c[9]; // OK 628 629 #pragma omp simd 630 for (int i = 0; i < 10; ++i) { 631 struct S { 632 void g() { throw 0; } 633 }; 634 } 635 } 636 637