744 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 21// Currently, we cannot use "0" for global register variables.22// register int reg0 __asm__("0");23int reg0;24 25int test_iteration_spaces() {26 const int N = 100;27 float a[N], b[N], c[N];28 int ii, jj, kk;29 float fii;30 double dii;31 register int reg; // expected-warning {{'register' storage class specifier is deprecated}}32#pragma omp parallel33#pragma omp taskloop simd34 for (int i = 0; i < 10; i += 1) {35 c[i] = a[i] + b[i];36 }37#pragma omp parallel38#pragma omp taskloop simd39 for (char i = 0; i < 10; i++) {40 c[i] = a[i] + b[i];41 }42#pragma omp parallel43#pragma omp taskloop simd44 for (char i = 0; i < 10; i += '\1') {45 c[i] = a[i] + b[i];46 }47#pragma omp parallel48#pragma omp taskloop simd49 for (long long i = 0; i < 10; i++) {50 c[i] = a[i] + b[i];51 }52#pragma omp parallel53// expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}}54#pragma omp taskloop simd55 for (long long i = 0; i < 10; i += 1.5) {56 c[i] = a[i] + b[i];57 }58#pragma omp parallel59#pragma omp taskloop simd60 for (long long i = 0; i < 'z'; i += 1u) {61 c[i] = a[i] + b[i];62 }63#pragma omp parallel64// expected-error@+2 {{variable must be of integer or random access iterator type}}65#pragma omp taskloop simd66 for (float fi = 0; fi < 10.0; fi++) {67 c[(int)fi] = a[(int)fi] + b[(int)fi];68 }69#pragma omp parallel70// expected-error@+2 {{variable must be of integer or random access iterator type}}71#pragma omp taskloop simd72 for (double fi = 0; fi < 10.0; fi++) {73 c[(int)fi] = a[(int)fi] + b[(int)fi];74 }75#pragma omp parallel76// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}77#pragma omp taskloop simd78 for (int &ref = ii; ref < 10; ref++) {79 }80#pragma omp parallel81// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}82#pragma omp taskloop simd83 for (int i; i < 10; i++)84 c[i] = a[i];85 86#pragma omp parallel87// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}88#pragma omp taskloop simd89 for (int i = 0, j = 0; i < 10; ++i)90 c[i] = a[i];91 92#pragma omp parallel93// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}94#pragma omp taskloop simd95 for (; ii < 10; ++ii)96 c[ii] = a[ii];97 98#pragma omp parallel99// expected-warning@+3 {{expression result unused}}100// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}101#pragma omp taskloop simd102 for (ii + 1; ii < 10; ++ii)103 c[ii] = a[ii];104 105#pragma omp parallel106// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}107#pragma omp taskloop simd108 for (c[ii] = 0; ii < 10; ++ii)109 c[ii] = a[ii];110 111#pragma omp parallel112// Ok to skip parenthesises.113#pragma omp taskloop simd114 for (((ii)) = 0; ii < 10; ++ii)115 c[ii] = a[ii];116 117#pragma omp parallel118// 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 taskloop simd120 for (int i = 0; i; i++)121 c[i] = a[i];122 123#pragma omp parallel124// 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'}}125// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}}126#pragma omp taskloop simd127 for (int i = 0; jj < kk; ii++)128 c[i] = a[i];129 130#pragma omp parallel131// 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'}}132#pragma omp taskloop simd133 for (int i = 0; !!i; i++)134 c[i] = a[i];135 136#pragma omp parallel137// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}}138#pragma omp taskloop simd139 for (int i = 0; i != 1; i++)140 c[i] = a[i];141 142#pragma omp parallel143// 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'}}144#pragma omp taskloop simd145 for (int i = 0;; i++)146 c[i] = a[i];147 148#pragma omp parallel149// Ok.150#pragma omp taskloop simd151 for (int i = 11; i > 10; i--)152 c[i] = a[i];153 154#pragma omp parallel155// Ok.156#pragma omp taskloop simd157 for (int i = 0; i < 10; ++i)158 c[i] = a[i];159 160#pragma omp parallel161// Ok.162#pragma omp taskloop simd163 for (ii = 0; ii < 10; ++ii)164 c[ii] = a[ii];165 166#pragma omp parallel167// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}168#pragma omp taskloop simd169 for (ii = 0; ii < 10; ++jj)170 c[ii] = a[jj];171 172#pragma omp parallel173// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}174#pragma omp taskloop simd175 for (ii = 0; ii < 10; ++++ii)176 c[ii] = a[ii];177 178#pragma omp parallel179// Ok but undefined behavior (in general, cannot check that incr180// is really loop-invariant).181#pragma omp taskloop simd182 for (ii = 0; ii < 10; ii = ii + ii)183 c[ii] = a[ii];184 185#pragma omp parallel186// expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}}187#pragma omp taskloop simd188 for (ii = 0; ii < 10; ii = ii + 1.0f)189 c[ii] = a[ii];190 191#pragma omp parallel192// Ok - step was converted to integer type.193#pragma omp taskloop simd194 for (ii = 0; ii < 10; ii = ii + (int)1.1f)195 c[ii] = a[ii];196 197#pragma omp parallel198// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}199#pragma omp taskloop simd200 for (ii = 0; ii < 10; jj = ii + 2)201 c[ii] = a[ii];202 203#pragma omp parallel204// expected-warning@+3 {{relational comparison result unused}}205// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}206#pragma omp taskloop simd207 for (ii = 0; ii<10; jj> kk + 2)208 c[ii] = a[ii];209 210#pragma omp parallel211// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}212#pragma omp taskloop simd213 for (ii = 0; ii < 10;)214 c[ii] = a[ii];215 216#pragma omp parallel217// expected-warning@+3 {{expression result unused}}218// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}219#pragma omp taskloop simd220 for (ii = 0; ii < 10; !ii)221 c[ii] = a[ii];222 223#pragma omp parallel224// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}225#pragma omp taskloop simd226 for (ii = 0; ii < 10; ii ? ++ii : ++jj)227 c[ii] = a[ii];228 229#pragma omp parallel230// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}231#pragma omp taskloop simd232 for (ii = 0; ii < 10; ii = ii < 10)233 c[ii] = a[ii];234 235#pragma omp parallel236// 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 taskloop simd239 for (ii = 0; ii < 10; ii = ii + 0)240 c[ii] = a[ii];241 242#pragma omp parallel243// 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 taskloop simd246 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45))247 c[ii] = a[ii];248 249#pragma omp parallel250// expected-note@+3 {{loop step is expected to be positive due to this condition}}251// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}252#pragma omp taskloop simd253 for (ii = 0; (ii) < 10; ii -= 25)254 c[ii] = a[ii];255 256#pragma omp parallel257// expected-note@+3 {{loop step is expected to be positive due to this condition}}258// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}259#pragma omp taskloop simd260 for (ii = 0; (ii < 10); ii -= 0)261 c[ii] = a[ii];262 263#pragma omp parallel264// expected-note@+3 {{loop step is expected to be negative due to this condition}}265// expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}}266#pragma omp taskloop simd267 for (ii = 0; ii > 10; (ii += 0))268 c[ii] = a[ii];269 270#pragma omp parallel271// expected-note@+3 {{loop step is expected to be positive due to this condition}}272// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}273#pragma omp taskloop simd274 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii))275 c[ii] = a[ii];276 277#pragma omp parallel278// expected-note@+3 {{loop step is expected to be negative due to this condition}}279// expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}}280#pragma omp taskloop simd281 for ((ii = 0); ii > 10; (ii -= 0))282 c[ii] = a[ii];283 284#pragma omp parallel285// expected-note@+3 {{loop step is expected to be positive due to this condition}}286// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}287#pragma omp taskloop simd288 for (ii = 0; (ii < 10); (ii -= 0))289 c[ii] = a[ii];290 291#pragma omp parallel292// expected-note@+2 {{defined as firstprivate}}293// expected-error@+2 {{loop iteration variable in the associated loop of 'omp taskloop simd' directive may not be firstprivate, predetermined as linear}}294#pragma omp taskloop simd firstprivate(ii)295 for (ii = 0; ii < 10; ii++)296 c[ii] = a[ii];297 298#pragma omp parallel299#pragma omp taskloop simd linear(ii)300 for (ii = 0; ii < 10; ii++)301 c[ii] = a[ii];302 303// omp4-note@+3 {{defined as private}}304// omp4-error@+3 {{loop iteration variable in the associated loop of 'omp taskloop simd' directive may not be private, predetermined as linear}}305#pragma omp parallel306#pragma omp taskloop simd private(ii)307 for (ii = 0; ii < 10; ii++)308 c[ii] = a[ii];309 310// omp4-note@+3 {{defined as lastprivate}}311// omp4-error@+3 {{loop iteration variable in the associated loop of 'omp taskloop simd' directive may not be lastprivate, predetermined as linear}}312#pragma omp parallel313#pragma omp taskloop simd lastprivate(ii)314 for (ii = 0; ii < 10; ii++)315 c[ii] = a[ii];316 317#pragma omp parallel318 {319// expected-error@+2 {{loop iteration variable in the associated loop of 'omp taskloop simd' directive may not be threadprivate or thread local, predetermined as linear}}320#pragma omp taskloop simd321 for (sii = 0; sii < 10; sii += 1)322 c[sii] = a[sii];323 }324 325#pragma omp parallel326 {327#pragma omp taskloop simd328 for (reg0 = 0; reg0 < 10; reg0 += 1)329 c[reg0] = a[reg0];330 }331 332#pragma omp parallel333 {334#pragma omp taskloop simd335 for (reg = 0; reg < 10; reg += 1)336 c[reg] = a[reg];337 }338 339#pragma omp parallel340 {341#pragma omp taskloop simd342 for (globalii = 0; globalii < 10; globalii += 1)343 c[globalii] = a[globalii];344 }345 346#pragma omp parallel347 {348#pragma omp taskloop simd collapse(2)349 for (ii = 0; ii < 10; ii += 1)350 for (globalii = 0; globalii < 10; globalii += 1)351 c[globalii] += a[globalii] + ii;352 }353 354#pragma omp parallel355// omp4-error@+2 {{statement after '#pragma omp taskloop simd' must be a for loop}}356#pragma omp taskloop simd357 for (auto &item : a) {358 item = item + 1;359 }360 361#pragma omp parallel362// expected-note@+3 {{loop step is expected to be positive due to this condition}}363// expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}}364#pragma omp taskloop simd365 for (unsigned i = 9; i < 10; i--) {366 c[i] = a[i] + b[i];367 }368 369 int(*lb)[4] = nullptr;370#pragma omp parallel371#pragma omp taskloop simd372 for (int(*p)[4] = lb; p < lb + 8; ++p) {373 }374 375#pragma omp parallel376// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}377#pragma omp taskloop simd378 for (int a{0}; a < 10; ++a) {379 }380 381 return 0;382}383 384// Iterators allowed in openmp for-loops.385namespace std {386struct random_access_iterator_tag {};387template <class Iter>388struct iterator_traits {389 typedef typename Iter::difference_type difference_type;390 typedef typename Iter::iterator_category iterator_category;391};392template <class Iter>393typename iterator_traits<Iter>::difference_type394distance(Iter first, Iter last) { return first - last; }395}396class Iter0 {397public:398 Iter0() {}399 Iter0(const Iter0 &) {}400 Iter0 operator++() { return *this; }401 Iter0 operator--() { return *this; }402 bool operator<(Iter0 a) { return true; }403};404// expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}}405// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}}406int operator-(Iter0 a, Iter0 b) { return 0; }407class Iter1 {408public:409 Iter1(float f = 0.0f, double d = 0.0) {}410 Iter1(const Iter1 &) {}411 Iter1 operator++() { return *this; }412 Iter1 operator--() { return *this; }413 bool operator<(Iter1 a) { return true; }414 bool operator>=(Iter1 a) { return false; }415};416class GoodIter {417public:418 GoodIter() {}419 GoodIter(const GoodIter &) {}420 GoodIter(int fst, int snd) {}421 GoodIter &operator=(const GoodIter &that) { return *this; }422 GoodIter &operator=(const Iter0 &that) { return *this; }423 GoodIter &operator+=(int x) { return *this; }424 GoodIter &operator-=(int x) { return *this; }425 explicit GoodIter(void *) {}426 GoodIter operator++() { return *this; }427 GoodIter operator--() { return *this; }428 bool operator!() { return true; }429 bool operator<(GoodIter a) { return true; }430 bool operator<=(GoodIter a) { return true; }431 bool operator>=(GoodIter a) { return false; }432 typedef int difference_type;433 typedef std::random_access_iterator_tag iterator_category;434};435// expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}}436// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}}437int operator-(GoodIter a, GoodIter b) { return 0; }438// expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}}439GoodIter operator-(GoodIter a) { return a; }440// expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}}441// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}}442GoodIter operator-(GoodIter a, int v) { return GoodIter(); }443// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}}444GoodIter operator+(GoodIter a, int v) { return GoodIter(); }445// expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}}446// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}}447GoodIter operator-(int v, GoodIter a) { return GoodIter(); }448// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}}449GoodIter operator+(int v, GoodIter a) { return GoodIter(); }450 451int test_with_random_access_iterator() {452 GoodIter begin, end;453 Iter0 begin0, end0;454#pragma omp parallel455#pragma omp taskloop simd456 for (GoodIter I = begin; I < end; ++I)457 ++I;458#pragma omp parallel459// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}460#pragma omp taskloop simd461 for (GoodIter &I = begin; I < end; ++I)462 ++I;463#pragma omp parallel464#pragma omp taskloop simd465 for (GoodIter I = begin; I >= end; --I)466 ++I;467#pragma omp parallel468// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}469#pragma omp taskloop simd470 for (GoodIter I(begin); I < end; ++I)471 ++I;472#pragma omp parallel473// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}474#pragma omp taskloop simd475 for (GoodIter I(nullptr); I < end; ++I)476 ++I;477#pragma omp parallel478// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}479#pragma omp taskloop simd480 for (GoodIter I(0); I < end; ++I)481 ++I;482#pragma omp parallel483// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}484#pragma omp taskloop simd485 for (GoodIter I(1, 2); I < end; ++I)486 ++I;487#pragma omp parallel488#pragma omp taskloop simd489 for (begin = GoodIter(0); begin < end; ++begin)490 ++begin;491// expected-error@+4 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}}492// expected-error@+3 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}493#pragma omp parallel494#pragma omp taskloop simd495 for (begin = begin0; begin < end; ++begin)496 ++begin;497#pragma omp parallel498// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}499#pragma omp taskloop simd500 for (++begin; begin < end; ++begin)501 ++begin;502#pragma omp parallel503#pragma omp taskloop simd504 for (begin = end; begin < end; ++begin)505 ++begin;506#pragma omp parallel507// 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'}}508#pragma omp taskloop simd509 for (GoodIter I = begin; I - I; ++I)510 ++I;511#pragma omp parallel512// 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'}}513#pragma omp taskloop simd514 for (GoodIter I = begin; begin < end; ++I)515 ++I;516#pragma omp parallel517// 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'}}518#pragma omp taskloop simd519 for (GoodIter I = begin; !I; ++I)520 ++I;521#pragma omp parallel522// expected-note@+3 {{loop step is expected to be negative due to this condition}}523// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}524#pragma omp taskloop simd525 for (GoodIter I = begin; I >= end; I = I + 1)526 ++I;527#pragma omp parallel528#pragma omp taskloop simd529 for (GoodIter I = begin; I >= end; I = I - 1)530 ++I;531#pragma omp parallel532// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}}533#pragma omp taskloop simd534 for (GoodIter I = begin; I >= end; I = -I)535 ++I;536#pragma omp parallel537// expected-note@+3 {{loop step is expected to be negative due to this condition}}538// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}539#pragma omp taskloop simd540 for (GoodIter I = begin; I >= end; I = 2 + I)541 ++I;542#pragma omp parallel543// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}}544#pragma omp taskloop simd545 for (GoodIter I = begin; I >= end; I = 2 - I)546 ++I;547// In the following example, we cannot update the loop variable using '+='548// expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}}549#pragma omp parallel550#pragma omp taskloop simd551 for (Iter0 I = begin0; I < end0; ++I)552 ++I;553#pragma omp parallel554// Initializer is constructor without params.555// expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}}556// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}557#pragma omp taskloop simd558 for (Iter0 I; I < end0; ++I)559 ++I;560 Iter1 begin1, end1;561// expected-error@+4 {{invalid operands to binary expression ('Iter1' and 'Iter1')}}562// expected-error@+3 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}563#pragma omp parallel564#pragma omp taskloop simd565 for (Iter1 I = begin1; I < end1; ++I)566 ++I;567#pragma omp parallel568// expected-note@+3 {{loop step is expected to be negative due to this condition}}569// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}570#pragma omp taskloop simd571 for (Iter1 I = begin1; I >= end1; ++I)572 ++I;573#pragma omp parallel574// expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'float')}}575// expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}576// Initializer is constructor with all default params.577// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}578#pragma omp taskloop simd579 for (Iter1 I; I < end1; ++I) {580 }581 return 0;582}583 584template <typename IT, int ST>585class TC {586public:587 int dotest_lt(IT begin, IT end) {588#pragma omp parallel589// expected-note@+3 {{loop step is expected to be positive due to this condition}}590// expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}}591#pragma omp taskloop simd592 for (IT I = begin; I < end; I = I + ST) {593 ++I;594 }595#pragma omp parallel596// expected-note@+3 {{loop step is expected to be positive due to this condition}}597// expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}}598#pragma omp taskloop simd599 for (IT I = begin; I <= end; I += ST) {600 ++I;601 }602#pragma omp parallel603#pragma omp taskloop simd604 for (IT I = begin; I < end; ++I) {605 ++I;606 }607 }608 609 static IT step() {610 return IT(ST);611 }612};613template <typename IT, int ST = 0>614int dotest_gt(IT begin, IT end) {615#pragma omp parallel616// expected-note@+3 2 {{loop step is expected to be negative due to this condition}}617// expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}618#pragma omp taskloop simd619 for (IT I = begin; I >= end; I = I + ST) {620 ++I;621 }622#pragma omp parallel623// expected-note@+3 2 {{loop step is expected to be negative due to this condition}}624// expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}625#pragma omp taskloop simd626 for (IT I = begin; I >= end; I += ST) {627 ++I;628 }629 630#pragma omp parallel631// expected-note@+3 {{loop step is expected to be negative due to this condition}}632// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}633#pragma omp taskloop simd634 for (IT I = begin; I >= end; ++I) {635 ++I;636 }637 638#pragma omp parallel639#pragma omp taskloop simd640 for (IT I = begin; I < end; I += TC<int, ST>::step()) {641 ++I;642 }643}644 645void test_with_template() {646 GoodIter begin, end;647 TC<GoodIter, 100> t1;648 TC<GoodIter, -100> t2;649 t1.dotest_lt(begin, end);650 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}}651 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}}652 dotest_gt<unsigned, 10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, 10>' requested here}}653}654 655void test_loop_break() {656 const int N = 100;657 float a[N], b[N], c[N];658#pragma omp parallel659#pragma omp taskloop simd660 for (int i = 0; i < 10; i++) {661 c[i] = a[i] + b[i];662 for (int j = 0; j < 10; ++j) {663 if (a[i] > b[j])664 break; // OK in nested loop665 }666 switch (i) {667 case 1:668 b[i]++;669 break;670 default:671 break;672 }673 if (c[i] > 10)674 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}675 676 if (c[i] > 11)677 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}678 }679 680#pragma omp parallel681#pragma omp taskloop simd682 for (int i = 0; i < 10; i++) {683 for (int j = 0; j < 10; j++) {684 c[i] = a[i] + b[i];685 if (c[i] > 10) {686 if (c[i] < 20) {687 break; // OK688 }689 }690 }691 }692}693 694void test_loop_eh() {695 const int N = 100;696 float a[N], b[N], c[N];697#pragma omp parallel698#pragma omp taskloop simd699 for (int i = 0; i < 10; i++) {700 c[i] = a[i] + b[i];701 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}}702 for (int j = 0; j < 10; ++j) {703 if (a[i] > b[j])704 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}705 }706 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}707 } catch (float f) {708 if (f > 0.1)709 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}710 return; // expected-error {{cannot return from OpenMP region}}711 }712 switch (i) {713 case 1:714 b[i]++;715 break;716 default:717 break;718 }719 for (int j = 0; j < 10; j++) {720 if (c[i] > 10)721 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}722 }723 }724 if (c[9] > 10)725 throw c[9]; // OK726 727#pragma omp parallel728#pragma omp taskloop simd729 for (int i = 0; i < 10; ++i) {730 struct S {731 void g() { throw 0; }732 };733 }734}735 736void test_loop_firstprivate_lastprivate() {737 S s(4);738#pragma omp parallel739#pragma omp taskloop simd lastprivate(s) firstprivate(s)740 for (int i = 0; i < 16; ++i)741 ;742}743 744