clang/test/OpenMP/parallel_sections_reduction_messages.cpp

   1 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp -fopenmp-version=45 -ferror-limit 150 -o - %s -Wuninitialized
   2 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp -fopenmp-version=45 -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
   3 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp -fopenmp-version=45 -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
   4 // RUN: %clang_cc1 -verify=expected,omp51 -fopenmp -ferror-limit 150 -o - %s -Wuninitialized
   5 // RUN: %clang_cc1 -verify=expected,omp51 -fopenmp -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
   6 // RUN: %clang_cc1 -verify=expected,omp51 -fopenmp -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
   7 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp -fopenmp-version=52 -ferror-limit 150 -o - %s -Wuninitialized
   8 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp -fopenmp-version=52 -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
   9 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp -fopenmp-version=52 -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
  10 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp -fopenmp-version=60 -o - %s -Wuninitialized
  11 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp -fopenmp-version=60 -std=c++98 -o - %s -Wuninitialized
  12 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp -fopenmp-version=60 -std=c++11 -o - %s -Wuninitialized
  13
  14 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-simd -fopenmp-version=45 -ferror-limit 150 -o - %s -Wuninitialized
  15 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-simd -fopenmp-version=45 -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
  16 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-simd -fopenmp-version=45 -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
  17 // RUN: %clang_cc1 -verify=expected,omp51 -fopenmp-simd -ferror-limit 150 -o - %s -Wuninitialized
  18 // RUN: %clang_cc1 -verify=expected,omp51 -fopenmp-simd -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
  19 // RUN: %clang_cc1 -verify=expected,omp51 -fopenmp-simd -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
  20 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp-simd -fopenmp-version=52 -ferror-limit 150 -o - %s -Wuninitialized
  21 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp-simd -fopenmp-version=52 -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
  22 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp-simd -fopenmp-version=52 -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
  23 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp-simd -fopenmp-version=60 -o - %s -Wuninitialized
  24 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp-simd -fopenmp-version=60 -std=c++98 -o - %s -Wuninitialized
  25 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp-simd -fopenmp-version=60 -std=c++11 -o - %s -Wuninitialized
  26
  27 extern int omp_default_mem_alloc;
  28 void xxx(int argc) {
  29   int fp; // expected-note {{initialize the variable 'fp' to silence this warning}}
  30 #pragma omp parallel sections reduction(+:fp) // expected-warning {{variable 'fp' is uninitialized when used here}}
  31 {
  32   for (int i = 0; i < 10; ++i)
  33     ;
  34 }
  35 }
  36
  37 void foo() {
  38 }
  39
  40 bool foobool(int argc) {
  41   return argc;
  42 }
  43
  44 void foobar(int &ref) {
  45 #pragma omp parallel sections reduction(+:ref)
  46   {
  47     foo();
  48   }
  49 }
  50
  51 struct S1; // expected-note {{declared here}} expected-note 4 {{forward declaration of 'S1'}}
  52 extern S1 a;
  53 class S2 {
  54   mutable int a;
  55   S2 &operator+(const S2 &arg) { return (*this); } // expected-note 3 {{implicitly declared private here}}
  56
  57 public:
  58   S2() : a(0) {}
  59   S2(S2 &s2) : a(s2.a) {}
  60   static float S2s; // expected-note 2 {{static data member is predetermined as shared}}
  61   static const float S2sc; // expected-note 2 {{'S2sc' declared here}}
  62 };
  63 const float S2::S2sc = 0;
  64 S2 b;                     // expected-note 3 {{'b' defined here}}
  65 const S2 ba[5];           // expected-note 2 {{'ba' defined here}}
  66 class S3 {
  67   int a;
  68
  69 public:
  70   int b;
  71   S3() : a(0) {}
  72   S3(const S3 &s3) : a(s3.a) {}
  73   S3 operator+(const S3 &arg1) { return arg1; }
  74 };
  75 int operator+(const S3 &arg1, const S3 &arg2) { return 5; }
  76 S3 c;               // expected-note 3 {{'c' defined here}}
  77 const S3 ca[5];     // expected-note 2 {{'ca' defined here}}
  78 extern const int f; // expected-note 4 {{'f' declared here}}
  79 class S4 {
  80   int a;
  81   S4(); // expected-note {{implicitly declared private here}}
  82   S4(const S4 &s4);
  83   S4 &operator+(const S4 &arg) { return (*this); }
  84
  85 public:
  86   S4(int v) : a(v) {}
  87 };
  88 S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
  89 class S5 {
  90   int a;
  91   S5() : a(0) {} // expected-note {{implicitly declared private here}}
  92   S5(const S5 &s5) : a(s5.a) {}
  93   S5 &operator+(const S5 &arg);
  94
  95 public:
  96   S5(int v) : a(v) {}
  97 };
  98 class S6 { // expected-note 3 {{candidate function (the implicit copy assignment operator) not viable: no known conversion from 'int' to 'const S6' for 1st argument}}
  99 #if __cplusplus >= 201103L // C++11 or later
 100 // expected-note@-2 3 {{candidate function (the implicit move assignment operator) not viable}}
 101 #endif
 102   int a;
 103
 104 public:
 105   S6() : a(6) {}
 106   operator int() { return 6; }
 107 } o;
 108
 109 S3 h, k;
 110 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
 111
 112 template <class T>       // expected-note {{declared here}}
 113 T tmain(T argc) {
 114   const T d = T();       // expected-note 4 {{'d' defined here}}
 115   const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
 116   T qa[5] = {T()};
 117   T i, z;
 118   T &j = i;                             // expected-note 4 {{'j' defined here}}
 119   S3 &p = k;                            // expected-note 2 {{'p' defined here}}
 120   const T &r = da[(int)i];              // expected-note 2 {{'r' defined here}}
 121   T &q = qa[(int)i];                    // expected-note 2 {{'q' defined here}}
 122   T fl;
 123 #pragma omp parallel sections reduction // expected-error {{expected '(' after 'reduction'}}
 124   {
 125     foo();
 126   }
 127 #pragma omp parallel sections reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
 128   {
 129     foo();
 130   }
 131 #pragma omp parallel sections reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 132   {
 133     foo();
 134   }
 135 #pragma omp parallel sections reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 136   {
 137     foo();
 138   }
 139 #pragma omp parallel sections reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 140   {
 141     foo();
 142   }
 143 #pragma omp parallel sections reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
 144   {
 145     foo();
 146   }
 147 #pragma omp parallel sections reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 148   {
 149     foo();
 150   }
 151 #pragma omp parallel sections reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
 152   {
 153     foo();
 154   }
 155 #pragma omp parallel sections reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
 156   {
 157     foo();
 158   }
 159 #pragma omp parallel sections reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name, array element or array section}}
 160   {
 161     foo();
 162   }
 163 #pragma omp parallel sections reduction(foo : argc) //omp45-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'float'}} omp45-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'int'}} omp51-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'float'}} omp51-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'int'}} omp52-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'float'}} omp52-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'int'}} omp60-error {{incorrect reduction identifier, expected one of '+', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'float'}} omp60-error {{incorrect reduction identifier, expected one of '+', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'int'}}
 164   {
 165     foo();
 166   }
 167 #pragma omp parallel sections reduction(&& : argc) allocate , allocate(, allocate(omp_default , allocate(omp_default_mem_alloc, allocate(omp_default_mem_alloc:, allocate(omp_default_mem_alloc: argc, allocate(omp_default_mem_alloc: argv), allocate(argv) // expected-error {{expected '(' after 'allocate'}} expected-error 2 {{expected expression}} expected-error 2 {{expected ')'}} expected-error {{use of undeclared identifier 'omp_default'}} expected-note 2 {{to match this '('}}
 168   {
 169     foo();
 170   }
 171 #pragma omp parallel sections reduction(^ : T) // expected-error {{'T' does not refer to a value}}
 172   {
 173     foo();
 174   }
 175 #pragma omp parallel sections reduction(+ : z, a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 3 {{const-qualified variable cannot be reduction}} expected-error 2 {{'operator+' is a private member of 'S2'}}
 176   {
 177     foo();
 178   }
 179 #pragma omp parallel sections reduction(min : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 4 {{arguments of OpenMP clause 'reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 3 {{const-qualified variable cannot be reduction}}
 180   {
 181     foo();
 182   }
 183 #pragma omp parallel sections reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
 184   {
 185     foo();
 186   }
 187 #pragma omp parallel sections reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
 188   {
 189     foo();
 190   }
 191 #pragma omp parallel sections reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
 192   {
 193     foo();
 194   }
 195 #pragma omp parallel sections reduction(- : da) // expected-error 2 {{const-qualified variable cannot be reduction}} omp52-warning 3 {{minus(-) operator for reductions is deprecated; use + or user defined reduction instead}}
 196   {
 197     foo();
 198   }
 199 #pragma omp parallel sections reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
 200   {
 201     foo();
 202   }
 203 #pragma omp parallel sections reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
 204   {
 205     foo();
 206   }
 207 #pragma omp parallel sections reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
 208   {
 209     foo();
 210   }
 211 #pragma omp parallel sections reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
 212   {
 213     foo();
 214   }
 215 #pragma omp parallel sections reduction(+ : o) // expected-error 2 {{no viable overloaded '='}}
 216   {
 217     foo();
 218   }
 219 #pragma omp parallel sections private(i), reduction(+ : j), reduction(+ : q) // expected-error 4 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 220   {
 221     foo();
 222   }
 223 #pragma omp parallel private(k)
 224 #pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 225   {
 226     foo();
 227   }
 228 #pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 2 {{previously referenced here}}
 229   {
 230     foo();
 231   }
 232 #pragma omp parallel sections reduction(+ : r) // expected-error 2 {{const-qualified variable cannot be reduction}}
 233   {
 234     foo();
 235   }
 236 #pragma omp parallel shared(i)
 237 #pragma omp parallel reduction(min : i)
 238 #pragma omp parallel sections reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 239   {
 240     foo();
 241   }
 242 #pragma omp parallel private(fl)
 243 #pragma omp parallel sections reduction(+ : fl)
 244   {
 245     foo();
 246   }
 247 #pragma omp parallel reduction(* : fl)
 248 #pragma omp parallel sections reduction(+ : fl)
 249   {
 250     foo();
 251   }
 252
 253   return T();
 254 }
 255
 256 namespace A {
 257 double x;
 258 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
 259 }
 260 namespace B {
 261 using A::x;
 262 }
 263
 264 int main(int argc, char **argv) {
 265   const int d = 5;       // expected-note 2 {{'d' defined here}}
 266   const int da[5] = {0}; // expected-note {{'da' defined here}}
 267   int qa[5] = {0};
 268   S4 e(4);
 269   S5 g(5);
 270   int i, z;
 271   int &j = i;                           // expected-note 2 {{'j' defined here}}
 272   S3 &p = k;                            // expected-note 2 {{'p' defined here}}
 273   const int &r = da[i];                 // expected-note {{'r' defined here}}
 274   int &q = qa[i];                       // expected-note {{'q' defined here}}
 275   float fl;
 276 #pragma omp parallel sections reduction // expected-error {{expected '(' after 'reduction'}}
 277   {
 278     foo();
 279   }
 280 #pragma omp parallel sections reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
 281   {
 282     foo();
 283   }
 284 #pragma omp parallel sections reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 285   {
 286     foo();
 287   }
 288 #pragma omp parallel sections reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 289   {
 290     foo();
 291   }
 292 #pragma omp parallel sections reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 293   {
 294     foo();
 295   }
 296 #pragma omp parallel sections reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
 297   {
 298     foo();
 299   }
 300 #pragma omp parallel sections reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 301   {
 302     foo();
 303   }
 304 #pragma omp parallel sections reduction(foo : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} omp45-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}} omp51-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}} omp52-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}  omp60-error {{incorrect reduction identifier, expected one of '+', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
 305   {
 306     foo();
 307   }
 308 #pragma omp parallel sections reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 309   {
 310     foo();
 311   }
 312 #pragma omp parallel sections reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name, array element or array section}}
 313   {
 314     foo();
 315   }
 316 #pragma omp parallel sections reduction(~ : argc) // expected-error {{expected unqualified-id}}
 317   {
 318     foo();
 319   }
 320 #pragma omp parallel sections reduction(&& : argc)
 321   {
 322     foo();
 323   }
 324 #pragma omp parallel sections reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
 325   {
 326     foo();
 327   }
 328 #pragma omp parallel sections reduction(+ : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 2 {{const-qualified variable cannot be reduction}} expected-error {{'operator+' is a private member of 'S2'}}
 329   {
 330     foo();
 331   }
 332 #pragma omp parallel sections reduction(min : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 2 {{arguments of OpenMP clause 'reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 2 {{const-qualified variable cannot be reduction}}
 333   {
 334     foo();
 335   }
 336 #pragma omp parallel sections reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
 337   {
 338     foo();
 339   }
 340 #pragma omp parallel sections reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
 341   {
 342     foo();
 343   }
 344 #pragma omp parallel sections reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
 345   {
 346     foo();
 347   }
 348 #pragma omp parallel sections reduction(- : da) // expected-error {{const-qualified variable cannot be reduction}} omp52-warning {{minus(-) operator for reductions is deprecated; use + or user defined reduction instead}}
 349   {
 350     foo();
 351   }
 352 #pragma omp parallel sections reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
 353   {
 354     foo();
 355   }
 356 #pragma omp parallel sections reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
 357   {
 358     foo();
 359   }
 360 #pragma omp parallel sections reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
 361   {
 362     foo();
 363   }
 364 #pragma omp parallel sections reduction(& : e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{calling a private constructor of class 'S5'}} expected-error {{invalid operands to binary expression ('S5' and 'S5')}}
 365   {
 366     foo();
 367   }
 368 #pragma omp parallel sections reduction(+ : h, k, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
 369   {
 370     foo();
 371   }
 372 #pragma omp parallel sections reduction(+ : o, z) // expected-error {{no viable overloaded '='}}
 373   {
 374     foo();
 375   }
 376 #pragma omp parallel sections private(i), reduction(+ : j), reduction(+ : q) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 377   {
 378     foo();
 379   }
 380 #pragma omp parallel private(k)
 381 #pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 382   {
 383     foo();
 384   }
 385 #pragma omp parallel sections reduction(+ : p), reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
 386   {
 387     foo();
 388   }
 389 #pragma omp parallel sections reduction(+ : r) // expected-error {{const-qualified variable cannot be reduction}}
 390   {
 391     foo();
 392   }
 393 #pragma omp parallel shared(i)
 394 #pragma omp parallel reduction(min : i)
 395 #pragma omp parallel sections reduction(max : j) // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 396   {
 397     foo();
 398   }
 399 #pragma omp parallel private(fl)
 400 #pragma omp parallel sections reduction(+ : fl)
 401   {
 402     foo();
 403   }
 404 #pragma omp parallel reduction(* : fl)
 405 #pragma omp parallel sections reduction(+ : fl)
 406   {
 407     foo();
 408   }
 409   static int m;
 410 #pragma omp parallel sections reduction(+ : m) // OK
 411   {
 412     foo();
 413   }
 414 #pragma omp parallel sections reduction(task,+ : m) // omp45-error 2 {{expected expression}} omp45-warning {{missing ':' after reduction identifier - ignoring}}
 415   {
 416     foo();
 417   }
 418
 419   return tmain(argc) + tmain(fl); // expected-note {{in instantiation of function template specialization 'tmain<int>' requested here}} expected-note {{in instantiation of function template specialization 'tmain<float>' requested here}}
 420 }