654 lines · cpp
1// RUN: %clang_cc1 -fsyntax-only -fopenmp -fopenmp-version=45 -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp4 %s -Wuninitialized2// RUN: %clang_cc1 -fsyntax-only -fopenmp -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp5 %s -Wuninitialized3 4// RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -fopenmp-version=45 -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp4 %s -Wuninitialized5// RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp5 %s -Wuninitialized6 7class S {8 int a;9 S() : a(0) {}10 11public:12 S(int v) : a(v) {}13 S(const S &s) : a(s.a) {}14};15 16static int sii;17// expected-note@+1 {{defined as threadprivate or thread local}}18#pragma omp threadprivate(sii)19static int globalii;20 21int test_iteration_spaces() {22 const int N = 100;23 float a[N], b[N], c[N];24 int ii, jj, kk;25 float fii;26 double dii;27#pragma omp parallel for simd28 for (int i = 0; i < 10; i += 1) {29 c[i] = a[i] + b[i];30 }31#pragma omp parallel for simd32 for (char i = 0; i < 10; i++) {33 c[i] = a[i] + b[i];34 }35#pragma omp parallel for simd36 for (char i = 0; i < 10; i += '\1') {37 c[i] = a[i] + b[i];38 }39#pragma omp parallel for simd40 for (long long i = 0; i < 10; i++) {41 c[i] = a[i] + b[i];42 }43// expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}}44#pragma omp parallel for simd45 for (long long i = 0; i < 10; i += 1.5) {46 c[i] = a[i] + b[i];47 }48#pragma omp parallel for simd49 for (long long i = 0; i < 'z'; i += 1u) {50 c[i] = a[i] + b[i];51 }52// expected-error@+2 {{variable must be of integer or random access iterator type}}53#pragma omp parallel for simd54 for (float fi = 0; fi < 10.0; fi++) {55 c[(int)fi] = a[(int)fi] + b[(int)fi];56 }57// expected-error@+2 {{variable must be of integer or random access iterator type}}58#pragma omp parallel for simd59 for (double fi = 0; fi < 10.0; fi++) {60 c[(int)fi] = a[(int)fi] + b[(int)fi];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 parallel for simd64 for (int &ref = ii; ref < 10; ref++) {65 }66// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}67#pragma omp parallel for simd68 for (int i; i < 10; i++)69 c[i] = a[i];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 parallel for simd73 for (int i = 0, j = 0; 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 parallel for simd78 for (; ii < 10; ++ii)79 c[ii] = a[ii];80 81// expected-warning@+3 {{expression result unused}}82// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}83#pragma omp parallel for simd84 for (ii + 1; ii < 10; ++ii)85 c[ii] = a[ii];86 87// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}88#pragma omp parallel for simd89 for (c[ii] = 0; ii < 10; ++ii)90 c[ii] = a[ii];91 92// Ok to skip parenthesises.93#pragma omp parallel for simd94 for (((ii)) = 0; ii < 10; ++ii)95 c[ii] = a[ii];96 97// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} omp5-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'i'}}98#pragma omp parallel for simd99 for (int i = 0; i; i++)100 c[i] = a[i];101 102// omp4-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} omp5-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'i'}}103// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}}104#pragma omp parallel for simd105 for (int i = 0; jj < kk; ii++)106 c[i] = a[i];107 108// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} omp5-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'i'}}109#pragma omp parallel for simd110 for (int i = 0; !!i; i++)111 c[i] = a[i];112 113// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}}114#pragma omp parallel for simd115 for (int i = 0; i != 1; i++)116 c[i] = a[i];117 118// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} omp5-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'i'}}119#pragma omp parallel for simd120 for (int i = 0;; i++)121 c[i] = a[i];122 123// Ok.124#pragma omp parallel for simd125 for (int i = 11; i > 10; i--)126 c[i] = a[i];127 128// Ok.129#pragma omp parallel for simd130 for (int i = 0; i < 10; ++i)131 c[i] = a[i];132 133// Ok.134#pragma omp parallel for simd135 for (ii = 0; ii < 10; ++ii)136 c[ii] = a[ii];137 138// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}139#pragma omp parallel for simd140 for (ii = 0; ii < 10; ++jj)141 c[ii] = a[jj];142 143// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}144#pragma omp parallel for simd145 for (ii = 0; ii < 10; ++++ii)146 c[ii] = a[ii];147 148// Ok but undefined behavior (in general, cannot check that incr149// is really loop-invariant).150#pragma omp parallel for simd151 for (ii = 0; ii < 10; ii = ii + ii)152 c[ii] = a[ii];153 154// expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}}155#pragma omp parallel for simd156 for (ii = 0; ii < 10; ii = ii + 1.0f)157 c[ii] = a[ii];158 159// Ok - step was converted to integer type.160#pragma omp parallel for simd161 for (ii = 0; ii < 10; ii = ii + (int)1.1f)162 c[ii] = a[ii];163 164// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}165#pragma omp parallel for simd166 for (ii = 0; ii < 10; jj = ii + 2)167 c[ii] = a[ii];168 169// expected-warning@+3 {{relational comparison result unused}}170// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}171#pragma omp parallel for simd172 for (ii = 0; ii<10; jj> kk + 2)173 c[ii] = a[ii];174 175// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}176#pragma omp parallel for simd177 for (ii = 0; ii < 10;)178 c[ii] = a[ii];179 180// expected-warning@+3 {{expression result unused}}181// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}182#pragma omp parallel for simd183 for (ii = 0; ii < 10; !ii)184 c[ii] = a[ii];185 186// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}187#pragma omp parallel for simd188 for (ii = 0; ii < 10; ii ? ++ii : ++jj)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 parallel for simd193 for (ii = 0; ii < 10; ii = ii < 10)194 c[ii] = a[ii];195 196// expected-note@+3 {{loop step is expected to be positive due to this condition}}197// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}198#pragma omp parallel for simd199 for (ii = 0; ii < 10; ii = ii + 0)200 c[ii] = a[ii];201 202// expected-note@+3 {{loop step is expected to be positive due to this condition}}203// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}204#pragma omp parallel for simd205 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45))206 c[ii] = a[ii];207 208// expected-note@+3 {{loop step is expected to be positive due to this condition}}209// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}210#pragma omp parallel for simd211 for (ii = 0; (ii) < 10; ii -= 25)212 c[ii] = a[ii];213 214// expected-note@+3 {{loop step is expected to be positive due to this condition}}215// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}216#pragma omp parallel for simd217 for (ii = 0; (ii < 10); ii -= 0)218 c[ii] = a[ii];219 220// expected-note@+3 {{loop step is expected to be negative due to this condition}}221// expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}}222#pragma omp parallel for simd223 for (ii = 0; ii > 10; (ii += 0))224 c[ii] = a[ii];225 226// expected-note@+3 {{loop step is expected to be positive due to this condition}}227// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}228#pragma omp parallel for simd229 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii))230 c[ii] = a[ii];231 232// expected-note@+3 {{loop step is expected to be negative due to this condition}}233// expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}}234#pragma omp parallel for simd235 for ((ii = 0); ii > 10; (ii -= 0))236 c[ii] = a[ii];237 238// expected-note@+3 {{loop step is expected to be positive due to this condition}}239// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}240#pragma omp parallel for simd241 for (ii = 0; (ii < 10); (ii -= 0))242 c[ii] = a[ii];243 244// expected-note@+2 {{defined as firstprivate}}245// expected-error@+2 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be firstprivate, predetermined as linear}}246#pragma omp parallel for simd firstprivate(ii)247 for (ii = 0; ii < 10; ii++)248 c[ii] = a[ii];249 250#pragma omp parallel for simd linear(ii)251 for (ii = 0; ii < 10; ii++)252 c[ii] = a[ii];253 254// omp4-note@+2 {{defined as private}}255// omp4-error@+2 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be private, predetermined as linear}}256#pragma omp parallel for simd private(ii)257 for (ii = 0; ii < 10; ii++)258 c[ii] = a[ii];259 260// omp4-note@+2 {{defined as lastprivate}}261// omp4-error@+2 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be lastprivate, predetermined as linear}}262#pragma omp parallel for simd lastprivate(ii)263 for (ii = 0; ii < 10; ii++)264 c[ii] = a[ii];265 266 {267// expected-error@+2 {{loop iteration variable in the associated loop of 'omp parallel for simd' directive may not be threadprivate or thread local, predetermined as linear}}268#pragma omp parallel for simd269 for (sii = 0; sii < 10; sii += 1)270 c[sii] = a[sii];271 }272 273 {274#pragma omp parallel for simd275 for (globalii = 0; globalii < 10; globalii += 1)276 c[globalii] = a[globalii];277 }278 279 {280#pragma omp parallel for simd collapse(2)281 for (ii = 0; ii < 10; ii += 1)282 for (globalii = 0; globalii < 10; globalii += 1)283 c[globalii] += a[globalii] + ii;284 }285 286// omp4-error@+2 {{statement after '#pragma omp parallel for simd' must be a for loop}}287#pragma omp parallel for simd288 for (auto &item : a) {289 item = item + 1;290 }291 292// expected-note@+3 {{loop step is expected to be positive due to this condition}}293// expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}}294#pragma omp parallel for simd295 for (unsigned i = 9; i < 10; i--) {296 c[i] = a[i] + b[i];297 }298 299 int(*lb)[4] = nullptr;300#pragma omp parallel for simd301 for (int(*p)[4] = lb; p < lb + 8; ++p) {302 }303 304// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}305#pragma omp parallel for simd306 for (int a{0}; a < 10; ++a) {307 }308 309 return 0;310}311 312// Iterators allowed in openmp for-loops.313namespace std {314struct random_access_iterator_tag {};315template <class Iter>316struct iterator_traits {317 typedef typename Iter::difference_type difference_type;318 typedef typename Iter::iterator_category iterator_category;319};320template <class Iter>321typename iterator_traits<Iter>::difference_type322distance(Iter first, Iter last) { return first - last; }323}324class Iter0 {325public:326 Iter0() {}327 Iter0(const Iter0 &) {}328 Iter0 operator++() { return *this; }329 Iter0 operator--() { return *this; }330 bool operator<(Iter0 a) { return true; }331};332// expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}}333// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}}334int operator-(Iter0 a, Iter0 b) { return 0; }335class Iter1 {336public:337 Iter1(float f = 0.0f, double d = 0.0) {}338 Iter1(const Iter1 &) {}339 Iter1 operator++() { return *this; }340 Iter1 operator--() { return *this; }341 bool operator<(Iter1 a) { return true; }342 bool operator>=(Iter1 a) { return false; }343};344class GoodIter {345public:346 GoodIter() {}347 GoodIter(const GoodIter &) {}348 GoodIter(int fst, int snd) {}349 GoodIter &operator=(const GoodIter &that) { return *this; }350 GoodIter &operator=(const Iter0 &that) { return *this; }351 GoodIter &operator+=(int x) { return *this; }352 explicit GoodIter(void *) {}353 GoodIter operator++() { return *this; }354 GoodIter operator--() { return *this; }355 bool operator!() { return true; }356 bool operator<(GoodIter a) { return true; }357 bool operator<=(GoodIter a) { return true; }358 bool operator>=(GoodIter a) { return false; }359 typedef int difference_type;360 typedef std::random_access_iterator_tag iterator_category;361};362// expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}}363// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}}364int operator-(GoodIter a, GoodIter b) { return 0; }365// expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}}366GoodIter operator-(GoodIter a) { return a; }367// expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}}368// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}}369GoodIter operator-(GoodIter a, int v) { return GoodIter(); }370// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}}371GoodIter operator+(GoodIter a, int v) { return GoodIter(); }372// expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}}373// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}}374GoodIter operator-(int v, GoodIter a) { return GoodIter(); }375// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}}376GoodIter operator+(int v, GoodIter a) { return GoodIter(); }377 378int test_with_random_access_iterator() {379 GoodIter begin, end;380 Iter0 begin0, end0;381#pragma omp parallel for simd382 for (GoodIter I = begin; I < end; ++I)383 ++I;384// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}385#pragma omp parallel for simd386 for (GoodIter &I = begin; I < end; ++I)387 ++I;388#pragma omp parallel for simd389 for (GoodIter I = begin; I >= end; --I)390 ++I;391// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}392#pragma omp parallel for simd393 for (GoodIter I(begin); I < end; ++I)394 ++I;395// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}396#pragma omp parallel for simd397 for (GoodIter I(nullptr); I < end; ++I)398 ++I;399// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}400#pragma omp parallel for simd401 for (GoodIter I(0); I < end; ++I)402 ++I;403// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}404#pragma omp parallel for simd405 for (GoodIter I(1, 2); I < end; ++I)406 ++I;407#pragma omp parallel for simd408 for (begin = GoodIter(0); begin < end; ++begin)409 ++begin;410// expected-error@+3 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}}411// expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}412#pragma omp parallel for simd413 for (begin = begin0; begin < end; ++begin)414 ++begin;415// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}416#pragma omp parallel for simd417 for (++begin; begin < end; ++begin)418 ++begin;419#pragma omp parallel for simd420 for (begin = end; begin < end; ++begin)421 ++begin;422// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} omp5-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'I'}}423#pragma omp parallel for simd424 for (GoodIter I = begin; I - I; ++I)425 ++I;426// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} omp5-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'I'}}427#pragma omp parallel for simd428 for (GoodIter I = begin; begin < end; ++I)429 ++I;430// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} omp5-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'I'}}431#pragma omp parallel for simd432 for (GoodIter I = begin; !I; ++I)433 ++I;434// expected-note@+3 {{loop step is expected to be negative due to this condition}}435// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}436#pragma omp parallel for simd437 for (GoodIter I = begin; I >= end; I = I + 1)438 ++I;439#pragma omp parallel for simd440 for (GoodIter I = begin; I >= end; I = I - 1)441 ++I;442// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}}443#pragma omp parallel for simd444 for (GoodIter I = begin; I >= end; I = -I)445 ++I;446// expected-note@+3 {{loop step is expected to be negative due to this condition}}447// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}448#pragma omp parallel for simd449 for (GoodIter I = begin; I >= end; I = 2 + I)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 parallel for simd453 for (GoodIter I = begin; I >= end; I = 2 - I)454 ++I;455// expected-error@+2 {{invalid operands to binary expression ('Iter0' and 'int')}}456#pragma omp parallel for simd457 for (Iter0 I = begin0; I < end0; ++I)458 ++I;459// Initializer is constructor without params.460// expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}}461// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}462#pragma omp parallel for simd463 for (Iter0 I; I < end0; ++I)464 ++I;465 Iter1 begin1, end1;466// expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}}467// expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}468#pragma omp parallel for simd469 for (Iter1 I = begin1; I < end1; ++I)470 ++I;471// expected-note@+3 {{loop step is expected to be negative due to this condition}}472// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}473#pragma omp parallel for simd474 for (Iter1 I = begin1; I >= end1; ++I)475 ++I;476// expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'float')}}477// expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}478// Initializer is constructor with all default params.479// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}480#pragma omp parallel for simd481 for (Iter1 I; I < end1; ++I) {482 }483 return 0;484}485 486template <typename IT, int ST>487class TC {488public:489 int dotest_lt(IT begin, IT end) {490// expected-note@+3 {{loop step is expected to be positive due to this condition}}491// expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}}492#pragma omp parallel for simd493 for (IT I = begin; I < end; I = I + ST) {494 ++I;495 }496// expected-note@+3 {{loop step is expected to be positive due to this condition}}497// expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}}498#pragma omp parallel for simd499 for (IT I = begin; I <= end; I += ST) {500 ++I;501 }502#pragma omp parallel for simd503 for (IT I = begin; I < end; ++I) {504 ++I;505 }506 }507 508 static IT step() {509 return IT(ST);510 }511};512template <typename IT, int ST = 0>513int dotest_gt(IT begin, IT end) {514// expected-note@+3 2 {{loop step is expected to be negative due to this condition}}515// expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}516#pragma omp parallel for simd517 for (IT I = begin; I >= end; I = I + ST) {518 ++I;519 }520// expected-note@+3 2 {{loop step is expected to be negative due to this condition}}521// expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}522#pragma omp parallel for simd523 for (IT I = begin; I >= end; I += ST) {524 ++I;525 }526 527// expected-note@+3 {{loop step is expected to be negative due to this condition}}528// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}529#pragma omp parallel for simd530 for (IT I = begin; I >= end; ++I) {531 ++I;532 }533 534#pragma omp parallel for simd535 for (IT I = begin; I < end; I += TC<int, ST>::step()) {536 ++I;537 }538}539 540void test_with_template() {541 GoodIter begin, end;542 TC<GoodIter, 100> t1;543 TC<GoodIter, -100> t2;544 t1.dotest_lt(begin, end);545 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}}546 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}}547 dotest_gt<unsigned, 10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, 10>' requested here}}548}549 550void test_loop_break() {551 const int N = 100;552 float a[N], b[N], c[N];553#pragma omp parallel for simd554 for (int i = 0; i < 10; i++) {555 c[i] = a[i] + b[i];556 for (int j = 0; j < 10; ++j) {557 if (a[i] > b[j])558 break; // OK in nested loop559 }560 switch (i) {561 case 1:562 b[i]++;563 break;564 default:565 break;566 }567 if (c[i] > 10)568 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}569 570 if (c[i] > 11)571 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}572 }573 574#pragma omp parallel for simd575 for (int i = 0; i < 10; i++) {576 for (int j = 0; j < 10; j++) {577 c[i] = a[i] + b[i];578 if (c[i] > 10) {579 if (c[i] < 20) {580 break; // OK581 }582 }583 }584 }585}586 587void test_loop_eh() {588 const int N = 100;589 float a[N], b[N], c[N];590#pragma omp parallel for simd591 for (int i = 0; i < 10; i++) {592 c[i] = a[i] + b[i];593 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}}594 for (int j = 0; j < 10; ++j) {595 if (a[i] > b[j])596 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}597 }598 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}599 } catch (float f) {600 if (f > 0.1)601 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}602 return; // expected-error {{cannot return from OpenMP region}}603 }604 switch (i) {605 case 1:606 b[i]++;607 break;608 default:609 break;610 }611 for (int j = 0; j < 10; j++) {612 if (c[i] > 10)613 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}614 }615 }616 if (c[9] > 10)617 throw c[9]; // OK618 619#pragma omp parallel for simd620 for (int i = 0; i < 10; ++i) {621 struct S {622 void g() { throw 0; }623 };624 }625}626 627void test_loop_firstprivate_lastprivate() {628 S s(4);629#pragma omp parallel for simd lastprivate(s) firstprivate(s)630 for (int i = 0; i < 16; ++i)631 ;632}633 634void test_ordered() {635#pragma omp parallel for simd ordered ordered // expected-error {{directive '#pragma omp parallel for simd' cannot contain more than one 'ordered' clause}}636 for (int i = 0; i < 16; ++i)637 ;638#pragma omp parallel for simd ordered639 for (int i = 0; i < 16; ++i)640 ;641//expected-error@+1 {{'ordered' clause with a parameter cannot be specified in '#pragma omp parallel for simd' directive}}642#pragma omp parallel for simd ordered(1)643 for (int i = 0; i < 16; ++i)644 ;645}646 647void test_nowait() {648// expected-error@+1 2 {{unexpected OpenMP clause 'nowait' in directive '#pragma omp parallel for simd'}}649#pragma omp parallel for simd nowait nowait // expected-error {{directive '#pragma omp parallel for simd' cannot contain more than one 'nowait' clause}}650 for (int i = 0; i < 16; ++i)651 ;652}653 654