822 lines · cpp
1// RUN: %clang_cc1 -fsyntax-only -fopenmp -fopenmp-version=45 -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp4 %s -Wno-openmp-mapping -Wuninitialized2// RUN: %clang_cc1 -fsyntax-only -fopenmp -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp5 %s -Wno-openmp-mapping -Wuninitialized3 4// RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -fopenmp-version=45 -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp4 %s -Wno-openmp-mapping -Wuninitialized5// RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp5 %s -Wno-openmp-mapping -Wuninitialized6 7class S {8 int a;9 S() : a(0) {} // expected-note {{implicitly declared private here}}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 target28#pragma omp teams29#pragma omp distribute parallel for simd30 for (int i = 0; i < 10; i += 1) {31 c[i] = a[i] + b[i];32 }33#pragma omp target34#pragma omp teams35#pragma omp distribute parallel for simd36 for (char i = 0; i < 10; i++) {37 c[i] = a[i] + b[i];38 }39#pragma omp target40#pragma omp teams41#pragma omp distribute parallel for simd42 for (char i = 0; i < 10; i += '\1') {43 c[i] = a[i] + b[i];44 }45#pragma omp target46#pragma omp teams47#pragma omp distribute parallel for simd48 for (long long i = 0; i < 10; i++) {49 c[i] = a[i] + b[i];50 }51#pragma omp target52#pragma omp teams53// expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}}54#pragma omp distribute parallel for simd55 for (long long i = 0; i < 10; i += 1.5) {56 c[i] = a[i] + b[i];57 }58#pragma omp target59#pragma omp teams60#pragma omp distribute parallel for simd61 for (long long i = 0; i < 'z'; i += 1u) {62 c[i] = a[i] + b[i];63 }64#pragma omp target65#pragma omp teams66// expected-error@+2 {{variable must be of integer or random access iterator type}}67#pragma omp distribute parallel for simd68 for (float fi = 0; fi < 10.0; fi++) {69 c[(int)fi] = a[(int)fi] + b[(int)fi];70 }71#pragma omp target72#pragma omp teams73// expected-error@+2 {{variable must be of integer or random access iterator type}}74#pragma omp distribute parallel for simd75 for (double fi = 0; fi < 10.0; fi++) {76 c[(int)fi] = a[(int)fi] + b[(int)fi];77 }78#pragma omp target79#pragma omp teams80// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}81#pragma omp distribute parallel for simd82 for (int &ref = ii; ref < 10; ref++) {83 }84#pragma omp target85#pragma omp teams86// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}87#pragma omp distribute parallel for simd88 for (int i; i < 10; i++)89 c[i] = a[i];90 91#pragma omp target92#pragma omp teams93// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}94#pragma omp distribute parallel for simd95 for (int i = 0, j = 0; i < 10; ++i)96 c[i] = a[i];97 98#pragma omp target99#pragma omp teams100// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}101#pragma omp distribute parallel for simd102 for (; ii < 10; ++ii)103 c[ii] = a[ii];104 105#pragma omp target106#pragma omp teams107// expected-warning@+3 {{expression result unused}}108// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}109#pragma omp distribute parallel for simd110 for (ii + 1; ii < 10; ++ii)111 c[ii] = a[ii];112 113#pragma omp target114#pragma omp teams115// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}116#pragma omp distribute parallel for simd117 for (c[ii] = 0; ii < 10; ++ii)118 c[ii] = a[ii];119 120#pragma omp target121#pragma omp teams122// Ok to skip parenthesises.123#pragma omp distribute parallel for simd124 for (((ii)) = 0; ii < 10; ++ii)125 c[ii] = a[ii];126 127#pragma omp target128#pragma omp teams129// 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'}}130#pragma omp distribute parallel for simd131 for (int i = 0; i; i++)132 c[i] = a[i];133 134#pragma omp target135#pragma omp teams136// 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'}}137// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}}138#pragma omp distribute parallel for simd139 for (int i = 0; jj < kk; ii++)140 c[i] = a[i];141 142#pragma omp target143#pragma omp teams144// 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'}}145#pragma omp distribute parallel for simd146 for (int i = 0; !!i; i++)147 c[i] = a[i];148 149#pragma omp target150#pragma omp teams151// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}}152#pragma omp distribute parallel for simd153 for (int i = 0; i != 1; i++)154 c[i] = a[i];155 156#pragma omp target157#pragma omp teams158// 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'}}159#pragma omp distribute parallel for simd160 for (int i = 0;; i++)161 c[i] = a[i];162 163// Ok.164#pragma omp target165#pragma omp teams166#pragma omp distribute parallel for simd167 for (int i = 11; i > 10; i--)168 c[i] = a[i];169 170// Ok.171#pragma omp target172#pragma omp teams173#pragma omp distribute parallel for simd174 for (int i = 0; i < 10; ++i)175 c[i] = a[i];176 177// Ok.178#pragma omp target179#pragma omp teams180#pragma omp distribute parallel for simd181 for (ii = 0; ii < 10; ++ii)182 c[ii] = a[ii];183 184#pragma omp target185#pragma omp teams186// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}187#pragma omp distribute parallel for simd188 for (ii = 0; ii < 10; ++jj)189 c[ii] = a[jj];190 191#pragma omp target192#pragma omp teams193// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}194#pragma omp distribute parallel for simd195 for (ii = 0; ii < 10; ++++ii)196 c[ii] = a[ii];197 198// Ok but undefined behavior (in general, cannot check that incr199// is really loop-invariant).200#pragma omp target201#pragma omp teams202#pragma omp distribute parallel for simd203 for (ii = 0; ii < 10; ii = ii + ii)204 c[ii] = a[ii];205 206#pragma omp target207#pragma omp teams208// expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}}209#pragma omp distribute parallel for simd210 for (ii = 0; ii < 10; ii = ii + 1.0f)211 c[ii] = a[ii];212 213// Ok - step was converted to integer type.214#pragma omp target215#pragma omp teams216#pragma omp distribute parallel for simd217 for (ii = 0; ii < 10; ii = ii + (int)1.1f)218 c[ii] = a[ii];219 220#pragma omp target221#pragma omp teams222// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}223#pragma omp distribute parallel for simd224 for (ii = 0; ii < 10; jj = ii + 2)225 c[ii] = a[ii];226 227#pragma omp target228#pragma omp teams229// expected-warning@+3 {{relational comparison result unused}}230// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}231#pragma omp distribute parallel for simd232 for (ii = 0; ii<10; jj> kk + 2)233 c[ii] = a[ii];234 235#pragma omp target236#pragma omp teams237// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}238#pragma omp distribute parallel for simd239 for (ii = 0; ii < 10;)240 c[ii] = a[ii];241 242#pragma omp target243#pragma omp teams244// expected-warning@+3 {{expression result unused}}245// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}246#pragma omp distribute parallel for simd247 for (ii = 0; ii < 10; !ii)248 c[ii] = a[ii];249 250#pragma omp target251#pragma omp teams252// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}253#pragma omp distribute parallel for simd254 for (ii = 0; ii < 10; ii ? ++ii : ++jj)255 c[ii] = a[ii];256 257#pragma omp target258#pragma omp teams259// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}260#pragma omp distribute parallel for simd261 for (ii = 0; ii < 10; ii = ii < 10)262 c[ii] = a[ii];263 264#pragma omp target265#pragma omp teams266// expected-note@+3 {{loop step is expected to be positive due to this condition}}267// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}268#pragma omp distribute parallel for simd269 for (ii = 0; ii < 10; ii = ii + 0)270 c[ii] = a[ii];271 272#pragma omp target273#pragma omp teams274// expected-note@+3 {{loop step is expected to be positive due to this condition}}275// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}276#pragma omp distribute parallel for simd277 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45))278 c[ii] = a[ii];279 280#pragma omp target281#pragma omp teams282// expected-note@+3 {{loop step is expected to be positive due to this condition}}283// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}284#pragma omp distribute parallel for simd285 for (ii = 0; (ii) < 10; ii -= 25)286 c[ii] = a[ii];287 288#pragma omp target289#pragma omp teams290// expected-note@+3 {{loop step is expected to be positive due to this condition}}291// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}292#pragma omp distribute parallel for simd293 for (ii = 0; (ii < 10); ii -= 0)294 c[ii] = a[ii];295 296#pragma omp target297#pragma omp teams298// expected-note@+3 {{loop step is expected to be negative due to this condition}}299// expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}}300#pragma omp distribute parallel for simd301 for (ii = 0; ii > 10; (ii += 0))302 c[ii] = a[ii];303 304#pragma omp target305#pragma omp teams306// expected-note@+3 {{loop step is expected to be positive due to this condition}}307// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}308#pragma omp distribute parallel for simd309 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii))310 c[ii] = a[ii];311 312#pragma omp target313#pragma omp teams314// expected-note@+3 {{loop step is expected to be negative due to this condition}}315// expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}}316#pragma omp distribute parallel for simd317 for ((ii = 0); ii > 10; (ii -= 0))318 c[ii] = a[ii];319 320#pragma omp target321#pragma omp teams322// expected-note@+3 {{loop step is expected to be positive due to this condition}}323// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}324#pragma omp distribute parallel for simd325 for (ii = 0; (ii < 10); (ii -= 0))326 c[ii] = a[ii];327 328#pragma omp target329#pragma omp teams330// expected-note@+2 {{defined as firstprivate}}331// expected-error@+2 {{loop iteration variable in the associated loop of 'omp distribute parallel for simd' directive may not be firstprivate, predetermined as linear}}332#pragma omp distribute parallel for simd firstprivate(ii)333 for (ii = 0; ii < 10; ii++)334 c[ii] = a[ii];335 336#pragma omp target337#pragma omp teams338#pragma omp distribute parallel for simd linear(ii)339 for (ii = 0; ii < 10; ii++)340 c[ii] = a[ii];341 342#pragma omp target343#pragma omp teams344// omp4-note@+2 {{defined as private}}345// omp4-error@+2 {{loop iteration variable in the associated loop of 'omp distribute parallel for simd' directive may not be private, predetermined as linear}}346#pragma omp distribute parallel for simd private(ii)347 for (ii = 0; ii < 10; ii++)348 c[ii] = a[ii];349 350#pragma omp target351#pragma omp teams352// omp4-note@+2 {{defined as lastprivate}}353// omp4-error@+2 {{loop iteration variable in the associated loop of 'omp distribute parallel for simd' directive may not be lastprivate, predetermined as linear}}354#pragma omp distribute parallel for simd lastprivate(ii)355 for (ii = 0; ii < 10; ii++)356 c[ii] = a[ii];357 358 {359// expected-error@+2 {{loop iteration variable in the associated loop of 'omp distribute parallel for simd' directive may not be threadprivate or thread local, predetermined as linear}}360#pragma omp distribute parallel for simd361 for (sii = 0; sii < 10; sii += 1)362 c[sii] = a[sii];363 }364 365 {366#pragma omp distribute parallel for simd367 for (globalii = 0; globalii < 10; globalii += 1)368 c[globalii] = a[globalii];369 }370 371 {372#pragma omp target373#pragma omp teams374#pragma omp distribute parallel for simd collapse(2)375 for (ii = 0; ii < 10; ii += 1)376 for (globalii = 0; globalii < 10; globalii += 1)377 c[globalii] += a[globalii] + ii;378 }379 380#pragma omp target381#pragma omp teams382// omp4-error@+2 {{statement after '#pragma omp distribute parallel for simd' must be a for loop}}383#pragma omp distribute parallel for simd384 for (auto &item : a) {385 item = item + 1;386 }387 388#pragma omp target389#pragma omp teams390// expected-note@+3 {{loop step is expected to be positive due to this condition}}391// expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}}392#pragma omp distribute parallel for simd393 for (unsigned i = 9; i < 10; i--) {394 c[i] = a[i] + b[i];395 }396 397 int(*lb)[4] = nullptr;398#pragma omp target399#pragma omp teams400#pragma omp distribute parallel for simd401 for (int(*p)[4] = lb; p < lb + 8; ++p) {402 }403 404#pragma omp target405#pragma omp teams406// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}407#pragma omp distribute parallel for simd408 for (int a{0}; a < 10; ++a) {409 }410 411 return 0;412}413 414// Iterators allowed in openmp for-loops.415namespace std {416struct random_access_iterator_tag {};417template <class Iter>418struct iterator_traits {419 typedef typename Iter::difference_type difference_type;420 typedef typename Iter::iterator_category iterator_category;421};422template <class Iter>423typename iterator_traits<Iter>::difference_type424distance(Iter first, Iter last) { return first - last; }425}426class Iter0 {427public:428 Iter0() {}429 Iter0(const Iter0 &) {}430 Iter0 operator++() { return *this; }431 Iter0 operator--() { return *this; }432 bool operator<(Iter0 a) { return true; }433};434// expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}}435// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}}436int operator-(Iter0 a, Iter0 b) { return 0; }437class Iter1 {438public:439 Iter1(float f = 0.0f, double d = 0.0) {}440 Iter1(const Iter1 &) {}441 Iter1 operator++() { return *this; }442 Iter1 operator--() { return *this; }443 bool operator<(Iter1 a) { return true; }444 bool operator>=(Iter1 a) { return false; }445};446class GoodIter {447public:448 GoodIter() {}449 GoodIter(const GoodIter &) {}450 GoodIter(int fst, int snd) {}451 GoodIter &operator=(const GoodIter &that) { return *this; }452 GoodIter &operator=(const Iter0 &that) { return *this; }453 GoodIter &operator+=(int x) { return *this; }454 explicit GoodIter(void *) {}455 GoodIter operator++() { return *this; }456 GoodIter operator--() { return *this; }457 bool operator!() { return true; }458 bool operator<(GoodIter a) { return true; }459 bool operator<=(GoodIter a) { return true; }460 bool operator>=(GoodIter a) { return false; }461 typedef int difference_type;462 typedef std::random_access_iterator_tag iterator_category;463};464// expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}}465// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}}466int operator-(GoodIter a, GoodIter b) { return 0; }467// expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}}468GoodIter operator-(GoodIter a) { return a; }469// expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}}470// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}}471GoodIter operator-(GoodIter a, int v) { return GoodIter(); }472// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}}473GoodIter operator+(GoodIter a, int v) { return GoodIter(); }474// expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}}475// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}}476GoodIter operator-(int v, GoodIter a) { return GoodIter(); }477// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}}478GoodIter operator+(int v, GoodIter a) { return GoodIter(); }479 480int test_with_random_access_iterator() {481 GoodIter begin, end;482 Iter0 begin0, end0;483#pragma omp target484#pragma omp teams485#pragma omp distribute parallel for simd486 for (GoodIter I = begin; I < end; ++I)487 ++I;488#pragma omp target489#pragma omp teams490// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}491#pragma omp distribute parallel for simd492 for (GoodIter &I = begin; I < end; ++I)493 ++I;494#pragma omp target495#pragma omp teams496#pragma omp distribute parallel for simd497 for (GoodIter I = begin; I >= end; --I)498 ++I;499#pragma omp target500#pragma omp teams501// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}502#pragma omp distribute parallel for simd503 for (GoodIter I(begin); I < end; ++I)504 ++I;505#pragma omp target506#pragma omp teams507// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}508#pragma omp distribute parallel for simd509 for (GoodIter I(nullptr); I < end; ++I)510 ++I;511#pragma omp target512#pragma omp teams513// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}514#pragma omp distribute parallel for simd515 for (GoodIter I(0); I < end; ++I)516 ++I;517#pragma omp target518#pragma omp teams519// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}520#pragma omp distribute parallel for simd521 for (GoodIter I(1, 2); I < end; ++I)522 ++I;523#pragma omp target524#pragma omp teams525#pragma omp distribute parallel for simd526 for (begin = GoodIter(0); begin < end; ++begin)527 ++begin;528#pragma omp target529#pragma omp teams530// expected-error@+3 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}}531// expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}532#pragma omp distribute parallel for simd533 for (begin = begin0; begin < end; ++begin)534 ++begin;535#pragma omp target536#pragma omp teams537// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}538#pragma omp distribute parallel for simd539 for (++begin; begin < end; ++begin)540 ++begin;541#pragma omp target542#pragma omp teams543#pragma omp distribute parallel for simd544 for (begin = end; begin < end; ++begin)545 ++begin;546#pragma omp target547#pragma omp teams548// 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'}}549#pragma omp distribute parallel for simd550 for (GoodIter I = begin; I - I; ++I)551 ++I;552#pragma omp target553#pragma omp teams554// 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'}}555#pragma omp distribute parallel for simd556 for (GoodIter I = begin; begin < end; ++I)557 ++I;558#pragma omp target559#pragma omp teams560// 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'}}561#pragma omp distribute parallel for simd562 for (GoodIter I = begin; !I; ++I)563 ++I;564#pragma omp target565#pragma omp teams566// expected-note@+3 {{loop step is expected to be negative due to this condition}}567// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}568#pragma omp distribute parallel for simd569 for (GoodIter I = begin; I >= end; I = I + 1)570 ++I;571#pragma omp target572#pragma omp teams573#pragma omp distribute parallel for simd574 for (GoodIter I = begin; I >= end; I = I - 1)575 ++I;576#pragma omp target577#pragma omp teams578// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}}579#pragma omp distribute parallel for simd580 for (GoodIter I = begin; I >= end; I = -I)581 ++I;582#pragma omp target583#pragma omp teams584// expected-note@+3 {{loop step is expected to be negative due to this condition}}585// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}586#pragma omp distribute parallel for simd587 for (GoodIter I = begin; I >= end; I = 2 + I)588 ++I;589#pragma omp target590#pragma omp teams591// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}}592#pragma omp distribute parallel for simd593 for (GoodIter I = begin; I >= end; I = 2 - I)594 ++I;595#pragma omp target596#pragma omp teams597// expected-error@+2 {{invalid operands to binary expression ('Iter0' and 'int')}}598#pragma omp distribute parallel for simd599 for (Iter0 I = begin0; I < end0; ++I)600 ++I;601#pragma omp target602#pragma omp teams603// Initializer is constructor without params.604// expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}}605// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}606#pragma omp distribute parallel for simd607 for (Iter0 I; I < end0; ++I)608 ++I;609 Iter1 begin1, end1;610#pragma omp target611#pragma omp teams612// expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}}613// expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}614#pragma omp distribute parallel for simd615 for (Iter1 I = begin1; I < end1; ++I)616 ++I;617#pragma omp target618#pragma omp teams619// expected-note@+3 {{loop step is expected to be negative due to this condition}}620// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}621#pragma omp distribute parallel for simd622 for (Iter1 I = begin1; I >= end1; ++I)623 ++I;624#pragma omp target625#pragma omp teams626// expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'float')}}627// expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}628// Initializer is constructor with all default params.629// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}630#pragma omp distribute parallel for simd631 for (Iter1 I; I < end1; ++I) {632 }633 return 0;634}635 636template <typename IT, int ST>637class TC {638public:639 int dotest_lt(IT begin, IT end) {640#pragma omp target641#pragma omp teams642// expected-note@+3 {{loop step is expected to be positive due to this condition}}643// expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}}644#pragma omp distribute parallel for simd645 for (IT I = begin; I < end; I = I + ST) {646 ++I;647 }648#pragma omp target649#pragma omp teams650// expected-note@+3 {{loop step is expected to be positive due to this condition}}651// expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}}652#pragma omp distribute parallel for simd653 for (IT I = begin; I <= end; I += ST) {654 ++I;655 }656#pragma omp target657#pragma omp teams658#pragma omp distribute parallel for simd659 for (IT I = begin; I < end; ++I) {660 ++I;661 }662 }663 664 static IT step() {665 return IT(ST);666 }667};668template <typename IT, int ST = 0>669int dotest_gt(IT begin, IT end) {670#pragma omp target671#pragma omp teams672// expected-note@+3 2 {{loop step is expected to be negative due to this condition}}673// expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}674#pragma omp distribute parallel for simd675 for (IT I = begin; I >= end; I = I + ST) {676 ++I;677 }678#pragma omp target679#pragma omp teams680// expected-note@+3 2 {{loop step is expected to be negative due to this condition}}681// expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}682#pragma omp distribute parallel for simd683 for (IT I = begin; I >= end; I += ST) {684 ++I;685 }686 687#pragma omp target688#pragma omp teams689// expected-note@+3 {{loop step is expected to be negative due to this condition}}690// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}691#pragma omp distribute parallel for simd692 for (IT I = begin; I >= end; ++I) {693 ++I;694 }695 696#pragma omp distribute parallel for simd697 for (IT I = begin; I < end; I += TC<int, ST>::step()) {698 ++I;699 }700}701 702void test_with_template() {703 GoodIter begin, end;704 TC<GoodIter, 100> t1;705 TC<GoodIter, -100> t2;706 t1.dotest_lt(begin, end);707 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}}708 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}}709 dotest_gt<unsigned, 10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, 10>' requested here}}710}711 712void test_loop_break() {713 const int N = 100;714 float a[N], b[N], c[N];715#pragma omp target716#pragma omp teams717#pragma omp distribute parallel for simd718 for (int i = 0; i < 10; i++) {719 c[i] = a[i] + b[i];720 for (int j = 0; j < 10; ++j) {721 if (a[i] > b[j])722 break; // OK in nested loop723 }724 switch (i) {725 case 1:726 b[i]++;727 break;728 default:729 break;730 }731 if (c[i] > 10)732 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}733 734 if (c[i] > 11)735 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}736 }737 738#pragma omp target739#pragma omp teams740#pragma omp distribute parallel for simd741 for (int i = 0; i < 10; i++) {742 for (int j = 0; j < 10; j++) {743 c[i] = a[i] + b[i];744 if (c[i] > 10) {745 if (c[i] < 20) {746 break; // OK747 }748 }749 }750 }751}752 753void test_loop_eh() {754 const int N = 100;755 float a[N], b[N], c[N];756#pragma omp target757#pragma omp teams758#pragma omp distribute parallel for simd759 for (int i = 0; i < 10; i++) {760 c[i] = a[i] + b[i];761 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}}762 for (int j = 0; j < 10; ++j) {763 if (a[i] > b[j])764 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}765 }766 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}767 } catch (float f) {768 if (f > 0.1)769 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}770 return; // expected-error {{cannot return from OpenMP region}}771 }772 switch (i) {773 case 1:774 b[i]++;775 break;776 default:777 break;778 }779 for (int j = 0; j < 10; j++) {780 if (c[i] > 10)781 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}782 }783 }784 if (c[9] > 10)785 throw c[9]; // OK786 787#pragma omp distribute parallel for simd788 for (int i = 0; i < 10; ++i) {789 struct S {790 void g() { throw 0; }791 };792 }793}794 795void test_loop_firstprivate_lastprivate() {796 S s(4);797// expected-error@+3 {{lastprivate variable cannot be firstprivate}} expected-note@+3 {{defined as lastprivate}}798#pragma omp target799#pragma omp teams800#pragma omp distribute parallel for simd lastprivate(s) firstprivate(s) // expected-error {{calling a private constructor of class 'S'}}801 for (int i = 0; i < 16; ++i)802 ;803}804 805void test_ordered() {806#pragma omp target807#pragma omp teams808#pragma omp distribute parallel for simd ordered // expected-error {{unexpected OpenMP clause 'ordered' in directive '#pragma omp distribute parallel for simd'}}809 for (int i = 0; i < 16; ++i)810 ;811}812 813void test_nowait() {814#pragma omp target815#pragma omp teams816// expected-error@+1 2 {{unexpected OpenMP clause 'nowait' in directive '#pragma omp distribute parallel for simd'}}817#pragma omp distribute parallel for simd nowait nowait // expected-error {{directive '#pragma omp distribute parallel for simd' cannot contain more than one 'nowait' clause}}818 for (int i = 0; i < 16; ++i)819 ;820}821 822