749 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 parallel28#pragma omp for simd29 for (int i = 0; i < 10; i += 1) {30 c[i] = a[i] + b[i];31 }32#pragma omp parallel33#pragma omp for simd34 for (char i = 0; i < 10; i++) {35 c[i] = a[i] + b[i];36 }37#pragma omp parallel38#pragma omp for simd39 for (char i = 0; i < 10; i += '\1') {40 c[i] = a[i] + b[i];41 }42#pragma omp parallel43#pragma omp for simd44 for (long long i = 0; i < 10; i++) {45 c[i] = a[i] + b[i];46 }47#pragma omp parallel48// expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}}49#pragma omp for simd50 for (long long i = 0; i < 10; i += 1.5) {51 c[i] = a[i] + b[i];52 }53#pragma omp parallel54#pragma omp for simd55 for (long long i = 0; i < 'z'; i += 1u) {56 c[i] = a[i] + b[i];57 }58#pragma omp parallel59// expected-error@+2 {{variable must be of integer or random access iterator type}}60#pragma omp for simd61 for (float fi = 0; fi < 10.0; fi++) {62 c[(int)fi] = a[(int)fi] + b[(int)fi];63 }64#pragma omp parallel65// expected-error@+2 {{variable must be of integer or random access iterator type}}66#pragma omp for simd67 for (double fi = 0; fi < 10.0; fi++) {68 c[(int)fi] = a[(int)fi] + b[(int)fi];69 }70#pragma omp parallel71// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}72#pragma omp for simd73 for (int &ref = ii; ref < 10; ref++) {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 for simd78 for (int i; i < 10; i++)79 c[i] = a[i];80 81#pragma omp parallel82// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}83#pragma omp for simd84 for (int i = 0, j = 0; i < 10; ++i)85 c[i] = a[i];86 87#pragma omp parallel88// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}89#pragma omp for simd90 for (; ii < 10; ++ii)91 c[ii] = a[ii];92 93#pragma omp parallel94// expected-warning@+3 {{expression result unused}}95// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}96#pragma omp for simd97 for (ii + 1; ii < 10; ++ii)98 c[ii] = a[ii];99 100#pragma omp parallel101// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}102#pragma omp for simd103 for (c[ii] = 0; ii < 10; ++ii)104 c[ii] = a[ii];105 106#pragma omp parallel107// Ok to skip parenthesises.108#pragma omp for simd109 for (((ii)) = 0; ii < 10; ++ii)110 c[ii] = a[ii];111 112#pragma omp parallel113// 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'}}114#pragma omp for simd115 for (int i = 0; i; i++)116 c[i] = a[i];117 118#pragma omp parallel119// 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'}}120// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}}121#pragma omp for simd122 for (int i = 0; jj < kk; ii++)123 c[i] = a[i];124 125#pragma omp parallel126// 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'}}127#pragma omp for simd128 for (int i = 0; !!i; i++)129 c[i] = a[i];130 131#pragma omp parallel132// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}}133#pragma omp for simd134 for (int i = 0; i != 1; i++)135 c[i] = a[i];136 137#pragma omp parallel138// 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'}}139#pragma omp for simd140 for (int i = 0;; i++)141 c[i] = a[i];142 143#pragma omp parallel144// Ok.145#pragma omp for simd146 for (int i = 11; i > 10; i--)147 c[i] = a[i];148 149#pragma omp parallel150// Ok.151#pragma omp for simd152 for (int i = 0; i < 10; ++i)153 c[i] = a[i];154 155#pragma omp parallel156// Ok.157#pragma omp for simd158 for (ii = 0; ii < 10; ++ii)159 c[ii] = a[ii];160 161#pragma omp parallel162// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}163#pragma omp for simd164 for (ii = 0; ii < 10; ++jj)165 c[ii] = a[jj];166 167#pragma omp parallel168// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}169#pragma omp for simd170 for (ii = 0; ii < 10; ++++ii)171 c[ii] = a[ii];172 173#pragma omp parallel174// Ok but undefined behavior (in general, cannot check that incr175// is really loop-invariant).176#pragma omp for simd177 for (ii = 0; ii < 10; ii = ii + ii)178 c[ii] = a[ii];179 180#pragma omp parallel181// expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}}182#pragma omp for simd183 for (ii = 0; ii < 10; ii = ii + 1.0f)184 c[ii] = a[ii];185 186#pragma omp parallel187// Ok - step was converted to integer type.188#pragma omp for simd189 for (ii = 0; ii < 10; ii = ii + (int)1.1f)190 c[ii] = a[ii];191 192#pragma omp parallel193// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}194#pragma omp for simd195 for (ii = 0; ii < 10; jj = ii + 2)196 c[ii] = a[ii];197 198#pragma omp parallel199// expected-warning@+3 {{relational comparison result unused}}200// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}201#pragma omp for simd202 for (ii = 0; ii<10; jj> kk + 2)203 c[ii] = a[ii];204 205#pragma omp parallel206// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}207#pragma omp for simd208 for (ii = 0; ii < 10;)209 c[ii] = a[ii];210 211#pragma omp parallel212// expected-warning@+3 {{expression result unused}}213// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}214#pragma omp for simd215 for (ii = 0; ii < 10; !ii)216 c[ii] = a[ii];217 218#pragma omp parallel219// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}220#pragma omp for simd221 for (ii = 0; ii < 10; ii ? ++ii : ++jj)222 c[ii] = a[ii];223 224#pragma omp parallel225// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}226#pragma omp for simd227 for (ii = 0; ii < 10; ii = ii < 10)228 c[ii] = a[ii];229 230#pragma omp parallel231// 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 for simd234 for (ii = 0; ii < 10; ii = ii + 0)235 c[ii] = a[ii];236 237#pragma omp parallel238// 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 for simd241 for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45))242 c[ii] = a[ii];243 244#pragma omp parallel245// expected-note@+3 {{loop step is expected to be positive due to this condition}}246// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}247#pragma omp for simd248 for (ii = 0; (ii) < 10; ii -= 25)249 c[ii] = a[ii];250 251#pragma omp parallel252// expected-note@+3 {{loop step is expected to be positive due to this condition}}253// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}254#pragma omp for simd255 for (ii = 0; (ii < 10); ii -= 0)256 c[ii] = a[ii];257 258#pragma omp parallel259// expected-note@+3 {{loop step is expected to be negative due to this condition}}260// expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}}261#pragma omp for simd262 for (ii = 0; ii > 10; (ii += 0))263 c[ii] = a[ii];264 265#pragma omp parallel266// 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 for simd269 for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii))270 c[ii] = a[ii];271 272#pragma omp parallel273// expected-note@+3 {{loop step is expected to be negative due to this condition}}274// expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}}275#pragma omp for simd276 for ((ii = 0); ii > 10; (ii -= 0))277 c[ii] = a[ii];278 279#pragma omp parallel280// expected-note@+3 {{loop step is expected to be positive due to this condition}}281// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}282#pragma omp for simd283 for (ii = 0; (ii < 10); (ii -= 0))284 c[ii] = a[ii];285 286#pragma omp parallel287// expected-note@+2 {{defined as firstprivate}}288// expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be firstprivate, predetermined as linear}}289#pragma omp for simd firstprivate(ii)290 for (ii = 0; ii < 10; ii++)291 c[ii] = a[ii];292 293#pragma omp parallel294#pragma omp for simd linear(ii)295 for (ii = 0; ii < 10; ii++)296 c[ii] = a[ii];297 298#pragma omp parallel299// omp4-note@+2 {{defined as private}}300// omp4-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be private, predetermined as linear}}301#pragma omp for simd private(ii)302 for (ii = 0; ii < 10; ii++)303 c[ii] = a[ii];304 305#pragma omp parallel306// omp4-note@+2 {{defined as lastprivate}}307// omp4-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be lastprivate, predetermined as linear}}308#pragma omp for simd lastprivate(ii)309 for (ii = 0; ii < 10; ii++)310 c[ii] = a[ii];311 312#pragma omp parallel313 {314// expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be threadprivate or thread local, predetermined as linear}}315#pragma omp for simd316 for (sii = 0; sii < 10; sii += 1)317 c[sii] = a[sii];318 }319 320#pragma omp parallel321 {322#pragma omp for simd323 for (globalii = 0; globalii < 10; globalii += 1)324 c[globalii] = a[globalii];325 }326 327#pragma omp parallel328 {329#pragma omp for simd collapse(2)330 for (ii = 0; ii < 10; ii += 1)331 for (globalii = 0; globalii < 10; globalii += 1)332 c[globalii] += a[globalii] + ii;333 }334 335#pragma omp parallel336// omp4-error@+2 {{statement after '#pragma omp for simd' must be a for loop}}337#pragma omp for simd338 for (auto &item : a) {339 item = item + 1;340 }341 342#pragma omp parallel343// expected-note@+3 {{loop step is expected to be positive due to this condition}}344// expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}}345#pragma omp for simd346 for (unsigned i = 9; i < 10; i--) {347 c[i] = a[i] + b[i];348 }349 350 int(*lb)[4] = nullptr;351#pragma omp parallel352#pragma omp for simd353 for (int(*p)[4] = lb; p < lb + 8; ++p) {354 }355 356#pragma omp parallel357// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}358#pragma omp for simd359 for (int a{0}; a < 10; ++a) {360 }361 362 return 0;363}364 365// Iterators allowed in openmp for-loops.366namespace std {367struct random_access_iterator_tag {};368template <class Iter>369struct iterator_traits {370 typedef typename Iter::difference_type difference_type;371 typedef typename Iter::iterator_category iterator_category;372};373template <class Iter>374typename iterator_traits<Iter>::difference_type375distance(Iter first, Iter last) { return first - last; }376}377class Iter0 {378public:379 Iter0() {}380 Iter0(const Iter0 &) {}381 Iter0 operator++() { return *this; }382 Iter0 operator--() { return *this; }383 bool operator<(Iter0 a) { return true; }384};385// expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}}386// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}}387int operator-(Iter0 a, Iter0 b) { return 0; }388class Iter1 {389public:390 Iter1(float f = 0.0f, double d = 0.0) {}391 Iter1(const Iter1 &) {}392 Iter1 operator++() { return *this; }393 Iter1 operator--() { return *this; }394 bool operator<(Iter1 a) { return true; }395 bool operator>=(Iter1 a) { return false; }396};397class GoodIter {398public:399 GoodIter() {}400 GoodIter(const GoodIter &) {}401 GoodIter(int fst, int snd) {}402 GoodIter &operator=(const GoodIter &that) { return *this; }403 GoodIter &operator=(const Iter0 &that) { return *this; }404 GoodIter &operator+=(int x) { return *this; }405 explicit GoodIter(void *) {}406 GoodIter operator++() { return *this; }407 GoodIter operator--() { return *this; }408 bool operator!() { return true; }409 bool operator<(GoodIter a) { return true; }410 bool operator<=(GoodIter a) { return true; }411 bool operator>=(GoodIter a) { return false; }412 typedef int difference_type;413 typedef std::random_access_iterator_tag iterator_category;414};415// expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}}416// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}}417int operator-(GoodIter a, GoodIter b) { return 0; }418// expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}}419GoodIter operator-(GoodIter a) { return a; }420// expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}}421// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}}422GoodIter operator-(GoodIter a, int v) { return GoodIter(); }423// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}}424GoodIter operator+(GoodIter a, int v) { return GoodIter(); }425// expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}}426// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}}427GoodIter operator-(int v, GoodIter a) { return GoodIter(); }428// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}}429GoodIter operator+(int v, GoodIter a) { return GoodIter(); }430 431int test_with_random_access_iterator() {432 GoodIter begin, end;433 Iter0 begin0, end0;434#pragma omp parallel435#pragma omp for simd436 for (GoodIter I = begin; I < end; ++I)437 ++I;438#pragma omp parallel439// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}440#pragma omp for simd441 for (GoodIter &I = begin; I < end; ++I)442 ++I;443#pragma omp parallel444#pragma omp for simd445 for (GoodIter I = begin; I >= end; --I)446 ++I;447#pragma omp parallel448// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}449#pragma omp for simd450 for (GoodIter I(begin); I < end; ++I)451 ++I;452#pragma omp parallel453// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}454#pragma omp for simd455 for (GoodIter I(nullptr); I < end; ++I)456 ++I;457#pragma omp parallel458// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}459#pragma omp for simd460 for (GoodIter I(0); I < end; ++I)461 ++I;462#pragma omp parallel463// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}464#pragma omp for simd465 for (GoodIter I(1, 2); I < end; ++I)466 ++I;467#pragma omp parallel468#pragma omp for simd469 for (begin = GoodIter(0); begin < end; ++begin)470 ++begin;471#pragma omp parallel472// expected-error@+3 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}}473// expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}474#pragma omp for simd475 for (begin = begin0; begin < end; ++begin)476 ++begin;477#pragma omp parallel478// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}479#pragma omp for simd480 for (++begin; begin < end; ++begin)481 ++begin;482#pragma omp parallel483#pragma omp for simd484 for (begin = end; begin < end; ++begin)485 ++begin;486#pragma omp parallel487// 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'}}488#pragma omp for simd489 for (GoodIter I = begin; I - I; ++I)490 ++I;491#pragma omp parallel492// 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'}}493#pragma omp for simd494 for (GoodIter I = begin; begin < end; ++I)495 ++I;496#pragma omp parallel497// 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'}}498#pragma omp for simd499 for (GoodIter I = begin; !I; ++I)500 ++I;501#pragma omp parallel502// expected-note@+3 {{loop step is expected to be negative due to this condition}}503// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}504#pragma omp for simd505 for (GoodIter I = begin; I >= end; I = I + 1)506 ++I;507#pragma omp parallel508#pragma omp for simd509 for (GoodIter I = begin; I >= end; I = I - 1)510 ++I;511#pragma omp parallel512// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}}513#pragma omp for simd514 for (GoodIter I = begin; I >= end; I = -I)515 ++I;516#pragma omp parallel517// expected-note@+3 {{loop step is expected to be negative due to this condition}}518// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}519#pragma omp for simd520 for (GoodIter I = begin; I >= end; I = 2 + I)521 ++I;522#pragma omp parallel523// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}}524#pragma omp for simd525 for (GoodIter I = begin; I >= end; I = 2 - I)526 ++I;527#pragma omp parallel528// expected-error@+2 {{invalid operands to binary expression ('Iter0' and 'int')}}529#pragma omp for simd530 for (Iter0 I = begin0; I < end0; ++I)531 ++I;532#pragma omp parallel533// Initializer is constructor without params.534// expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}}535// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}536#pragma omp for simd537 for (Iter0 I; I < end0; ++I)538 ++I;539 Iter1 begin1, end1;540#pragma omp parallel541// expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}}542// expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}543#pragma omp for simd544 for (Iter1 I = begin1; I < end1; ++I)545 ++I;546#pragma omp parallel547// expected-note@+3 {{loop step is expected to be negative due to this condition}}548// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}549#pragma omp for simd550 for (Iter1 I = begin1; I >= end1; ++I)551 ++I;552#pragma omp parallel553// expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'float')}}554// expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}555// Initializer is constructor with all default params.556// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}557#pragma omp for simd558 for (Iter1 I; I < end1; ++I) {559 }560 return 0;561}562 563template <typename IT, int ST>564class TC {565public:566 int dotest_lt(IT begin, IT end) {567#pragma omp parallel568// expected-note@+3 {{loop step is expected to be positive due to this condition}}569// expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}}570#pragma omp for simd571 for (IT I = begin; I < end; I = I + ST) {572 ++I;573 }574#pragma omp parallel575// expected-note@+3 {{loop step is expected to be positive due to this condition}}576// expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}}577#pragma omp for simd578 for (IT I = begin; I <= end; I += ST) {579 ++I;580 }581#pragma omp parallel582#pragma omp for simd583 for (IT I = begin; I < end; ++I) {584 ++I;585 }586 }587 588 static IT step() {589 return IT(ST);590 }591};592template <typename IT, int ST = 0>593int dotest_gt(IT begin, IT end) {594#pragma omp parallel595// expected-note@+3 2 {{loop step is expected to be negative due to this condition}}596// expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}597#pragma omp for simd598 for (IT I = begin; I >= end; I = I + ST) {599 ++I;600 }601#pragma omp parallel602// expected-note@+3 2 {{loop step is expected to be negative due to this condition}}603// expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}604#pragma omp for simd605 for (IT I = begin; I >= end; I += ST) {606 ++I;607 }608 609#pragma omp parallel610// expected-note@+3 {{loop step is expected to be negative due to this condition}}611// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}612#pragma omp for simd613 for (IT I = begin; I >= end; ++I) {614 ++I;615 }616 617#pragma omp parallel618#pragma omp for simd619 for (IT I = begin; I < end; I += TC<int, ST>::step()) {620 ++I;621 }622}623 624void test_with_template() {625 GoodIter begin, end;626 TC<GoodIter, 100> t1;627 TC<GoodIter, -100> t2;628 t1.dotest_lt(begin, end);629 t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}}630 dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}}631 dotest_gt<unsigned, 10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, 10>' requested here}}632}633 634void test_loop_break() {635 const int N = 100;636 float a[N], b[N], c[N];637#pragma omp parallel638#pragma omp for simd639 for (int i = 0; i < 10; i++) {640 c[i] = a[i] + b[i];641 for (int j = 0; j < 10; ++j) {642 if (a[i] > b[j])643 break; // OK in nested loop644 }645 switch (i) {646 case 1:647 b[i]++;648 break;649 default:650 break;651 }652 if (c[i] > 10)653 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}654 655 if (c[i] > 11)656 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}657 }658 659#pragma omp parallel660#pragma omp for simd661 for (int i = 0; i < 10; i++) {662 for (int j = 0; j < 10; j++) {663 c[i] = a[i] + b[i];664 if (c[i] > 10) {665 if (c[i] < 20) {666 break; // OK667 }668 }669 }670 }671}672 673void test_loop_eh() {674 const int N = 100;675 float a[N], b[N], c[N];676#pragma omp parallel677#pragma omp for simd678 for (int i = 0; i < 10; i++) {679 c[i] = a[i] + b[i];680 try { // expected-error {{'try' statement cannot be used in OpenMP simd region}}681 for (int j = 0; j < 10; ++j) {682 if (a[i] > b[j])683 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}684 }685 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}686 }687 catch (float f) {688 if (f > 0.1)689 throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}690 return; // expected-error {{cannot return from OpenMP region}}691 }692 switch (i) {693 case 1:694 b[i]++;695 break;696 default:697 break;698 }699 for (int j = 0; j < 10; j++) {700 if (c[i] > 10)701 throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}702 }703 }704 if (c[9] > 10)705 throw c[9]; // OK706 707#pragma omp parallel708#pragma omp for simd709 for (int i = 0; i < 10; ++i) {710 struct S {711 void g() { throw 0; }712 };713 }714}715 716void test_loop_firstprivate_lastprivate() {717 S s(4);718#pragma omp parallel719#pragma omp for simd lastprivate(s) firstprivate(s)720 for (int i = 0; i < 16; ++i)721 ;722}723 724void test_ordered() {725#pragma omp parallel726#pragma omp for simd ordered ordered // expected-error {{directive '#pragma omp for simd' cannot contain more than one 'ordered' clause}}727 for (int i = 0; i < 16; ++i)728 ;729#pragma omp parallel730#pragma omp for simd ordered731 for (int i = 0; i < 16; ++i)732 ;733#pragma omp parallel734// expected-error@+1 {{'ordered' clause with a parameter cannot be specified in '#pragma omp for simd' directive}}735#pragma omp for simd ordered(1)736 for (int i = 0; i < 16; ++i)737 ;738#pragma omp for simd ordered (0xFFFFFFFFFFFFFFFF) // expected-error {{argument to 'ordered' clause requires a value that can be represented by a 64-bit}}739 for (int i = 0; i < 10; i++)740 ;741}742 743void test_nowait() {744#pragma omp parallel745#pragma omp for simd nowait nowait // expected-error {{directive '#pragma omp for simd' cannot contain more than one 'nowait' clause}}746 for (int i = 0; i < 16; ++i)747 ;748}749