clang/test/OpenMP/parallel_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,omp50 -fopenmp -ferror-limit 150 -o - %s -Wuninitialized
   5 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
   6 // RUN: %clang_cc1 -verify=expected,omp50 -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 -ferror-limit 150 -o - %s -Wuninitialized
  11 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp -fopenmp-version=60 -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
  12 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp -fopenmp-version=60 -std=c++11 -ferror-limit 150 -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,omp50 -fopenmp-simd -ferror-limit 150 -o - %s -Wuninitialized
  18 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-simd -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
  19 // RUN: %clang_cc1 -verify=expected,omp50 -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 -ferror-limit 150 -o - %s -Wuninitialized
  24 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp-simd -fopenmp-version=60 -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
  25 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp-simd -fopenmp-version=60 -std=c++11 -ferror-limit 150 -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 reduction(+:fp) // expected-warning {{variable 'fp' is uninitialized when used here}}
  31   for (int i = 0; i < 10; ++i)
  32     ;
  33 }
  34
  35 void foo() {
  36 }
  37
  38 bool foobool(int argc) {
  39   return argc;
  40 }
  41
  42 void foobar(int &ref) {
  43 #pragma omp parallel reduction(+:ref)
  44   foo();
  45 }
  46
  47 struct S1; // expected-note {{declared here}} expected-note 4 {{forward declaration of 'S1'}}
  48 extern S1 a;
  49 class S2 {
  50   mutable int a;
  51   S2 &operator+(const S2 &arg) { return (*this); } // expected-note 3 {{implicitly declared private here}}
  52
  53 public:
  54   S2() : a(0) {}
  55   S2(S2 &s2) : a(s2.a) {}
  56   static float S2s; // expected-note 2 {{static data member is predetermined as shared}}
  57   static const float S2sc; // expected-note 2 {{'S2sc' declared here}}
  58 };
  59 const float S2::S2sc = 0;
  60 S2 b;                     // expected-note 3 {{'b' defined here}}
  61 const S2 ba[5];           // expected-note 2 {{'ba' defined here}}
  62 class S3 {
  63   int a;
  64
  65 public:
  66   int b;
  67   S3() : a(0) {}
  68   S3(const S3 &s3) : a(s3.a) {}
  69   S3 operator+(const S3 &arg1) { return arg1; }
  70 };
  71 int operator+(const S3 &arg1, const S3 &arg2) { return 5; }
  72 S3 c;               // expected-note 3 {{'c' defined here}}
  73 const S3 ca[5];     // expected-note 2 {{'ca' defined here}}
  74 extern const int f; // expected-note 4 {{'f' declared here}}
  75 class S4 {
  76   int a;
  77   S4(); // expected-note {{implicitly declared private here}}
  78   S4(const S4 &s4);
  79   S4 &operator+(const S4 &arg) { return (*this); }
  80
  81 public:
  82   S4(int v) : a(v) {}
  83 };
  84 S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
  85 class S5 {
  86   int a;
  87   S5() : a(0) {} // expected-note {{implicitly declared private here}}
  88   S5(const S5 &s5) : a(s5.a) {}
  89   S5 &operator+(const S5 &arg);
  90
  91 public:
  92   S5(int v) : a(v) {}
  93 };
  94 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}}
  95 #if __cplusplus >= 201103L // C++11 or later
  96 // expected-note@-2 3 {{candidate function (the implicit move assignment operator) not viable}}
  97 #endif
  98   int a;
  99
 100 public:
 101   S6() : a(6) {}
 102   operator int() { return 6; }
 103 } o;
 104
 105 S3 h, k;
 106 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
 107 int *gptr;
 108 #pragma omp threadprivate(gptr) // expected-note {{defined as threadprivate or thread local}}
 109
 110 template <class T>       // expected-note {{declared here}}
 111 T tmain(T argc) {
 112   const T d = T();       // expected-note 4 {{'d' defined here}}
 113   const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
 114   T qa[5] = {T()};
 115   T i, z;
 116   T &j = i;                    // expected-note 4 {{'j' defined here}}
 117   S3 &p = k;                   // expected-note 2 {{'p' defined here}}
 118   const T &r = da[(int)i];     // expected-note 2 {{'r' defined here}}
 119   T &q = qa[(int)i];           // expected-note 2 {{'q' defined here}}
 120   T fl;
 121 #pragma omp parallel reduction // expected-error {{expected '(' after 'reduction'}}
 122   foo();
 123 #pragma omp parallel reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
 124   foo();
 125 #pragma omp parallel reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 126   foo();
 127 #pragma omp parallel reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 128   foo();
 129 #pragma omp parallel reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 130   foo();
 131 #pragma omp parallel reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
 132   foo();
 133 #pragma omp parallel reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 134   foo();
 135 #pragma omp parallel reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
 136   foo();
 137 #pragma omp parallel reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
 138   foo();
 139 #pragma omp parallel reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name, array element or array section}}
 140   foo();
 141 #pragma omp parallel 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'}} omp50-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'float'}} omp50-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'}}
 142   foo();
 143 #pragma omp parallel 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 '('}}
 144   foo();
 145 #pragma omp parallel reduction(^ : T) // expected-error {{'T' does not refer to a value}}
 146   foo();
 147 #pragma omp parallel 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'}}
 148   foo();
 149 #pragma omp parallel 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}}
 150   foo();
 151 #pragma omp parallel reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
 152   foo();
 153 #pragma omp parallel reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
 154   foo();
 155 #pragma omp parallel reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
 156   foo();
 157 #pragma omp parallel 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}}
 158   foo();
 159 #pragma omp parallel reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
 160   foo();
 161 #pragma omp parallel reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
 162   foo();
 163 #pragma omp parallel reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
 164   foo();
 165 #pragma omp parallel reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
 166   foo();
 167 #pragma omp parallel reduction(+ : o) // expected-error 2 {{no viable overloaded '='}}
 168   foo();
 169 #pragma omp parallel private(i), reduction(+ : j), reduction(+ : q) // expected-error 4 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 170   foo();
 171 #pragma omp parallel private(k)
 172 #pragma omp parallel reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 173   foo();
 174 #pragma omp parallel reduction(+ : p), reduction(+ : p) // expected-error 2 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 2 {{previously referenced here}}
 175   foo();
 176 #pragma omp parallel reduction(+ : r) // expected-error 2 {{const-qualified variable cannot be reduction}}
 177   foo();
 178 #pragma omp parallel shared(i)
 179 #pragma omp parallel reduction(min : i)
 180 #pragma omp parallel reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 181   foo();
 182 #pragma omp parallel
 183 #pragma omp for private(fl)
 184   for (int i = 0; i < 10; ++i)
 185 #pragma omp parallel reduction(+ : fl)
 186     foo();
 187 #pragma omp parallel
 188 #pragma omp for reduction(- : fl) // omp52-warning 3 {{minus(-) operator for reductions is deprecated; use + or user defined reduction instead}} omp60-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'}}
 189   for (int i = 0; i < 10; ++i)
 190 #pragma omp parallel reduction(+ : fl)
 191     foo();
 192
 193   return T();
 194 }
 195
 196 namespace A {
 197 double x;
 198 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
 199 }
 200 namespace B {
 201 using A::x;
 202 }
 203
 204 int main(int argc, char **argv) {
 205   const int d = 5;       // expected-note 2 {{'d' defined here}}
 206   const int da[5] = {0}; // expected-note {{'da' defined here}}
 207   int qa[5] = {0};
 208   S4 e(4);
 209   S5 g(5);
 210   int i, z;
 211   int &j = i;                  // expected-note 2 {{'j' defined here}}
 212   S3 &p = k;                   // expected-note 2 {{'p' defined here}}
 213   const int &r = da[i];        // expected-note {{'r' defined here}}
 214   int &q = qa[i];              // expected-note {{'q' defined here}}
 215   float fl;
 216 #pragma omp parallel reduction // expected-error {{expected '(' after 'reduction'}}
 217   foo();
 218 #pragma omp parallel reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
 219   foo();
 220 #pragma omp parallel reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 221   foo();
 222 #pragma omp parallel reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 223   foo();
 224 #pragma omp parallel reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 225   foo();
 226 #pragma omp parallel reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
 227   foo();
 228 #pragma omp parallel reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 229   foo();
 230 #pragma omp parallel reduction(foo : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} omp45-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}} omp50-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'}}
 231   foo();
 232 #pragma omp parallel reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 233   foo();
 234 #pragma omp parallel reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name, array element or array section}}
 235   foo();
 236 #pragma omp parallel reduction(~ : argc) // expected-error {{expected unqualified-id}}
 237   foo();
 238 #pragma omp parallel reduction(&& : argc, z)
 239   foo();
 240 #pragma omp parallel reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
 241   foo();
 242 #pragma omp parallel 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'}}
 243   foo();
 244 #pragma omp parallel 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}}
 245   foo();
 246 #pragma omp parallel reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
 247   foo();
 248 #pragma omp parallel reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
 249   foo();
 250 #pragma omp parallel reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
 251   foo();
 252 #pragma omp parallel reduction(- : da) // expected-error {{const-qualified variable cannot be reduction}} omp52-warning {{minus(-) operator for reductions is deprecated; use + or user defined reduction instead}}
 253   foo();
 254 #pragma omp parallel reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
 255   foo();
 256 #pragma omp parallel reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
 257   foo();
 258 #pragma omp parallel reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
 259   foo();
 260 #pragma omp parallel 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')}}
 261   foo();
 262 #pragma omp parallel reduction(+ : h, k, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
 263   foo();
 264 #pragma omp parallel reduction(+ : o) // expected-error {{no viable overloaded '='}}
 265   foo();
 266 #pragma omp parallel private(i), reduction(+ : j), reduction(+ : q) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 267   foo();
 268 #pragma omp parallel private(k)
 269 #pragma omp parallel reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 270   foo();
 271 #pragma omp parallel reduction(+ : p), reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
 272   foo();
 273 #pragma omp parallel reduction(+ : r) // expected-error {{const-qualified variable cannot be reduction}}
 274   foo();
 275 #pragma omp parallel shared(i)
 276 #pragma omp parallel reduction(min : i)
 277 #pragma omp parallel reduction(max : j) // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 278   foo();
 279 #pragma omp parallel
 280 #pragma omp for private(fl)
 281   for (int i = 0; i < 10; ++i)
 282 #pragma omp parallel reduction(+ : fl)
 283     foo();
 284 #pragma omp parallel
 285 #pragma omp for reduction(- : fl) // omp52-warning {{minus(-) operator for reductions is deprecated; use + or user defined reduction instead}} omp60-error{{incorrect reduction identifier, expected one of '+', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'float'}}
 286   for (int i = 0; i < 10; ++i)
 287 #pragma omp parallel reduction(+ : fl)
 288     foo();
 289   static int m;
 290 #pragma omp parallel reduction(+ : m) // OK
 291   m++;
 292 #pragma omp parallel reduction(task, + : m) // omp45-error 2 {{expected expression}} omp45-warning {{missing ':' after reduction identifier - ignoring}}
 293   m++;
 294 #pragma omp parallel reduction(+:gptr[:argc]) // expected-error {{threadprivate or thread local variable cannot be reduction}}
 295   ;
 296
 297   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}}
 298 }