clang/test/OpenMP/taskloop_reduction_messages_attr.cpp

   1 // RUN: %clang_cc1 -verify -fopenmp -fsyntax-only %s -Wuninitialized
   2 // RUN: %clang_cc1 -verify -fopenmp -std=c++11 -fsyntax-only %s -Wuninitialized
   3 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp -fopenmp-version=52 -fsyntax-only %s -Wuninitialized
   4 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp -fopenmp-version=52 -std=c++11 -fsyntax-only %s -Wuninitialized
   5 // RUN: %clang_cc1 -verify -fopenmp-simd -fsyntax-only %s -Wuninitialized
   6 // RUN: %clang_cc1 -verify -fopenmp-simd -std=c++11 -fsyntax-only %s -Wuninitialized
   7 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp-simd -fopenmp-version=52 -fsyntax-only %s -Wuninitialized
   8 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp-simd -fopenmp-version=52 -std=c++11 -fsyntax-only %s -Wuninitialized
   9
  10 typedef void **omp_allocator_handle_t;
  11 extern const omp_allocator_handle_t omp_null_allocator;
  12 extern const omp_allocator_handle_t omp_default_mem_alloc;
  13 extern const omp_allocator_handle_t omp_large_cap_mem_alloc;
  14 extern const omp_allocator_handle_t omp_const_mem_alloc;
  15 extern const omp_allocator_handle_t omp_high_bw_mem_alloc;
  16 extern const omp_allocator_handle_t omp_low_lat_mem_alloc;
  17 extern const omp_allocator_handle_t omp_cgroup_mem_alloc;
  18 extern const omp_allocator_handle_t omp_pteam_mem_alloc;
  19 extern const omp_allocator_handle_t omp_thread_mem_alloc;
  20
  21 void xxx(int argc) {
  22   int fp; // expected-note {{initialize the variable 'fp' to silence this warning}}
  23   [[omp::directive(taskloop reduction(+:fp))]] // expected-warning {{variable 'fp' is uninitialized when used here}}
  24   for (int i = 0; i < 10; ++i)
  25     ;
  26 }
  27
  28 void foo() {
  29 }
  30
  31 bool foobool(int argc) {
  32   return argc;
  33 }
  34
  35 void foobar(int &ref) {
  36   [[omp::directive(taskloop reduction(+:ref))]]
  37   for (int i = 0; i < 10; ++i)
  38     foo();
  39 }
  40
  41 struct S1; // expected-note {{declared here}} expected-note 4 {{forward declaration of 'S1'}}
  42 extern S1 a;
  43 class S2 {
  44   mutable int a;
  45   S2 &operator+(const S2 &arg) { return (*this); } // expected-note 3 {{implicitly declared private here}}
  46
  47 public:
  48   S2() : a(0) {}
  49   S2(S2 &s2) : a(s2.a) {}
  50   static float S2s; // expected-note 2 {{static data member is predetermined as shared}}
  51   static const float S2sc; // expected-note 2 {{'S2sc' declared here}}
  52 };
  53 const float S2::S2sc = 0;
  54 S2 b;                     // expected-note 3 {{'b' defined here}}
  55 const S2 ba[5];           // expected-note 2 {{'ba' defined here}}
  56 class S3 {
  57   int a;
  58
  59 public:
  60   int b;
  61   S3() : a(0) {}
  62   S3(const S3 &s3) : a(s3.a) {}
  63   S3 operator+(const S3 &arg1) { return arg1; }
  64 };
  65 int operator+(const S3 &arg1, const S3 &arg2) { return 5; }
  66 S3 c;               // expected-note 3 {{'c' defined here}}
  67 const S3 ca[5];     // expected-note 2 {{'ca' defined here}}
  68 extern const int f; // expected-note 4 {{'f' declared here}}
  69 class S4 {
  70   int a;
  71   S4(); // expected-note {{implicitly declared private here}}
  72   S4(const S4 &s4);
  73   S4 &operator+(const S4 &arg) { return (*this); }
  74
  75 public:
  76   S4(int v) : a(v) {}
  77 };
  78 S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
  79 class S5 {
  80   int a:32;
  81   S5() : a(0) {} // expected-note {{implicitly declared private here}}
  82   S5(const S5 &s5) : a(s5.a) {}
  83   S5 &operator+(const S5 &arg);
  84
  85 public:
  86   S5(int v) : a(v) {}
  87 };
  88 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}}
  89 #if __cplusplus >= 201103L // C++11 or later
  90 // expected-note@-2 3 {{candidate function (the implicit move assignment operator) not viable}}
  91 #endif
  92   int a;
  93
  94 public:
  95   S6() : a(6) {}
  96   operator int() { return 6; }
  97 } o;
  98
  99 struct S7 {
 100   int a: 32;
 101   S7() {
 102     [[omp::directive(taskloop reduction(+:a))]] // expected-error {{expected addressable reduction item for the task-based directives}}
 103     for (int i = 0; i < 10; ++i)
 104       ++a;
 105   }
 106 };
 107
 108 S3 h, k;
 109 [[omp::directive(threadprivate(h))]]; // expected-note 2 {{defined as threadprivate or thread local}}
 110
 111 template <class T>       // expected-note {{declared here}}
 112 T tmain(T argc) {
 113   const T d = T();       // expected-note 4 {{'d' defined here}}
 114   const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
 115   T qa[5] = {T()};
 116   T i, z;
 117   T &j = i;                        // expected-note 4 {{'j' defined here}}
 118   S3 &p = k;                       // expected-note 2 {{'p' defined here}}
 119   const T &r = da[(int)i];         // expected-note 2 {{'r' defined here}}
 120   T &q = qa[(int)i];               // expected-note 2 {{'q' defined here}}
 121   T fl;
 122   [[omp::directive(taskloop reduction)]] // expected-error {{expected '(' after 'reduction'}}
 123   for (int i = 0; i < 10; ++i)
 124     foo();
 125   [[omp::directive(taskloop reduction +)]] // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp taskloop' are ignored}}
 126   for (int i = 0; i < 10; ++i)
 127     foo();
 128   [[omp::directive(taskloop reduction())]] // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 129   for (int i = 0; i < 10; ++i)
 130     foo();
 131   [[omp::directive(taskloop reduction(*))]] // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
 132   for (int i = 0; i < 10; ++i)
 133     foo();
 134   [[omp::directive(taskloop reduction(\))]] // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 135   for (int i = 0; i < 10; ++i)
 136     foo();
 137   [[omp::directive(taskloop reduction(foo : argc))]] //expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'float'}} expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'int'}}
 138   for (int i = 0; i < 10; ++i)
 139     foo();
 140   [[omp::directive(taskloop reduction(^ : T))]] // expected-error {{'T' does not refer to a value}}
 141   for (int i = 0; i < 10; ++i)
 142     foo();
 143   [[omp::directive(taskloop 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'}}
 144   for (int i = 0; i < 10; ++i)
 145     foo();
 146   [[omp::directive(taskloop 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}}
 147   for (int i = 0; i < 10; ++i)
 148     foo();
 149   [[omp::directive(taskloop reduction(max : h.b))]] // expected-error {{expected variable name, array element or array section}}
 150   for (int i = 0; i < 10; ++i)
 151     foo();
 152   [[omp::directive(taskloop reduction(+ : ba))]] // expected-error {{const-qualified variable cannot be reduction}}
 153   for (int i = 0; i < 10; ++i)
 154     foo();
 155   [[omp::directive(taskloop reduction(* : ca))]] // expected-error {{const-qualified variable cannot be reduction}}
 156   for (int i = 0; i < 10; ++i)
 157     foo();
 158   [[omp::directive(taskloop 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}}
 159   for (int i = 0; i < 10; ++i)
 160     foo();
 161   [[omp::directive(taskloop reduction(^ : fl))]] // expected-error {{invalid operands to binary expression ('float' and 'float')}}
 162   for (int i = 0; i < 10; ++i)
 163     foo();
 164   [[omp::directive(taskloop reduction(&& : S2::S2s))]] // expected-error {{shared variable cannot be reduction}}
 165   for (int i = 0; i < 10; ++i)
 166     foo();
 167   [[omp::directive(taskloop reduction(&& : S2::S2sc))]] // expected-error {{const-qualified variable cannot be reduction}}
 168   for (int i = 0; i < 10; ++i)
 169     foo();
 170   [[omp::directive(taskloop reduction(+ : h, k))]] // expected-error {{threadprivate or thread local variable cannot be reduction}}
 171   for (int i = 0; i < 10; ++i)
 172     foo();
 173   [[omp::directive(taskloop reduction(+ : o))]] // expected-error 2 {{no viable overloaded '='}}
 174   for (int i = 0; i < 10; ++i)
 175     foo();
 176   [[omp::directive(taskloop private(i), reduction(+ : j), reduction(+ : q))]] // expected-error 4 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 177   for (int i = 0; i < 10; ++i)
 178     foo();
 179   [[omp::sequence(directive(parallel private(k)), directive(taskloop reduction(+ : p), reduction(+ : p)))]] // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 180   for (int i = 0; i < 10; ++i)
 181     foo();
 182   [[omp::directive(taskloop reduction(+ : p), reduction(+ : p))]] // expected-error 2 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 2 {{previously referenced here}}
 183   for (int i = 0; i < 10; ++i)
 184     foo();
 185   [[omp::directive(taskloop reduction(+ : r))]] // expected-error 2 {{const-qualified variable cannot be reduction}}
 186   for (int i = 0; i < 10; ++i)
 187     foo();
 188   [[omp::sequence(directive(parallel shared(i)), directive(parallel reduction(min : i)), directive(taskloop reduction(max : j)))]] // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 189   for (int i = 0; i < 10; ++i)
 190     foo();
 191   [[omp::sequence(directive(parallel private(fl)), directive(taskloop reduction(+ : fl) allocate(omp_thread_mem_alloc: fl)))]] // expected-warning 2 {{allocator with the 'thread' trait access has unspecified behavior on 'taskloop' directive}}
 192   for (int i = 0; i < 10; ++i)
 193     foo();
 194   [[omp::sequence(directive(parallel reduction(* : fl)), directive(taskloop reduction(+ : fl)))]]
 195   for (int i = 0; i < 10; ++i)
 196     foo();
 197
 198   return T();
 199 }
 200
 201 namespace A {
 202 double x;
 203 [[omp::directive(threadprivate(x))]]; // expected-note {{defined as threadprivate or thread local}}
 204 }
 205 namespace B {
 206 using A::x;
 207 }
 208
 209 int main(int argc, char **argv) {
 210   const int d = 5;       // expected-note 2 {{'d' defined here}}
 211   const int da[5] = {0}; // expected-note {{'da' defined here}}
 212   int qa[5] = {0};
 213   S4 e(4);
 214   S5 g(5);
 215   int i, z;
 216   int &j = i;                      // expected-note 2 {{'j' defined here}}
 217   S3 &p = k;                       // expected-note 2 {{'p' defined here}}
 218   const int &r = da[i];            // expected-note {{'r' defined here}}
 219   int &q = qa[i];                  // expected-note {{'q' defined here}}
 220   float fl;
 221   [[omp::directive(taskloop reduction)]] // expected-error {{expected '(' after 'reduction'}}
 222   for (int i = 0; i < 10; ++i)
 223     foo();
 224   [[omp::directive(taskloop reduction +)]] // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp taskloop' are ignored}}
 225   for (int i = 0; i < 10; ++i)
 226     foo();
 227   [[omp::directive(taskloop reduction())]] // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 228   for (int i = 0; i < 10; ++i)
 229     foo();
 230   [[omp::directive(taskloop reduction(*))]] // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
 231   for (int i = 0; i < 10; ++i)
 232     foo();
 233   [[omp::directive(taskloop reduction(\))]] // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 234   for (int i = 0; i < 10; ++i)
 235     foo();
 236   [[omp::directive(taskloop reduction(~ : argc))]] // expected-error {{expected unqualified-id}}
 237   for (int i = 0; i < 10; ++i)
 238     foo();
 239   [[omp::directive(taskloop reduction(&& : argc, z))]]
 240   for (int i = 0; i < 10; ++i)
 241     foo();
 242   [[omp::directive(taskloop reduction(^ : S1))]] // expected-error {{'S1' does not refer to a value}}
 243   for (int i = 0; i < 10; ++i)
 244     foo();
 245   [[omp::directive(taskloop 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'}}
 246   for (int i = 0; i < 10; ++i)
 247     foo();
 248   [[omp::directive(taskloop 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}}
 249   for (int i = 0; i < 10; ++i)
 250     foo();
 251   [[omp::directive(taskloop reduction(max : h.b))]] // expected-error {{expected variable name, array element or array section}}
 252   for (int i = 0; i < 10; ++i)
 253     foo();
 254   [[omp::directive(taskloop reduction(+ : ba))]] // expected-error {{const-qualified variable cannot be reduction}}
 255   for (int i = 0; i < 10; ++i)
 256     foo();
 257   [[omp::directive(taskloop reduction(* : ca))]] // expected-error {{const-qualified variable cannot be reduction}}
 258   for (int i = 0; i < 10; ++i)
 259     foo();
 260   [[omp::directive(taskloop reduction(- : da))]] // expected-error {{const-qualified variable cannot be reduction}} omp52-warning {{minus(-) operator for reductions is deprecated; use + or user defined reduction instead}}
 261   for (int i = 0; i < 10; ++i)
 262     foo();
 263   [[omp::directive(taskloop reduction(^ : fl))]] // expected-error {{invalid operands to binary expression ('float' and 'float')}}
 264   for (int i = 0; i < 10; ++i)
 265     foo();
 266   [[omp::directive(taskloop reduction(&& : S2::S2s))]] // expected-error {{shared variable cannot be reduction}}
 267   for (int i = 0; i < 10; ++i)
 268     foo();
 269   [[omp::directive(taskloop reduction(&& : S2::S2sc))]] // expected-error {{const-qualified variable cannot be reduction}}
 270   for (int i = 0; i < 10; ++i)
 271     foo();
 272   [[omp::directive(taskloop 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')}}
 273   for (int i = 0; i < 10; ++i)
 274     foo();
 275   [[omp::directive(taskloop reduction(+ : h, k, B::x))]] // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
 276   for (int i = 0; i < 10; ++i)
 277     foo();
 278   [[omp::directive(taskloop reduction(+ : o))]] // expected-error {{no viable overloaded '='}}
 279   for (int i = 0; i < 10; ++i)
 280     foo();
 281   [[omp::directive(taskloop private(i), reduction(+ : j), reduction(+ : q))]] // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 282   for (int i = 0; i < 10; ++i)
 283     foo();
 284   [[omp::sequence(directive(parallel private(k)), directive(taskloop reduction(+ : p), reduction(+ : p)))]] // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 285   for (int i = 0; i < 10; ++i)
 286     foo();
 287   [[omp::directive(taskloop reduction(+ : p), reduction(+ : p))]] // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
 288   for (int i = 0; i < 10; ++i)
 289     foo();
 290   [[omp::directive(taskloop reduction(+ : r))]] // expected-error {{const-qualified variable cannot be reduction}}
 291   for (int i = 0; i < 10; ++i)
 292     foo();
 293   [[omp::sequence(directive(parallel shared(i)), directive(parallel reduction(min : i)), directive(taskloop reduction(max : j)))]] // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 294   for (int i = 0; i < 10; ++i)
 295     foo();
 296   [[omp::sequence(directive(parallel private(fl)), directive(taskloop reduction(+ : fl)))]]
 297   for (int i = 0; i < 10; ++i)
 298     foo();
 299   [[omp::sequence(directive(parallel reduction(* : fl)), directive(taskloop reduction(+ : fl)))]]
 300   for (int i = 0; i < 10; ++i)
 301     foo();
 302   static int m;
 303   [[omp::directive(taskloop reduction(+ : m))]] // OK
 304   for (int i = 0; i < 10; ++i)
 305     m++;
 306   [[omp::directive(taskloop reduction(task, + : m))]] // expected-error {{'reduction' clause with 'task' modifier allowed only on non-simd parallel or worksharing constructs}}
 307   for (int i = 0; i < 10; ++i)
 308     m++;
 309   [[omp::directive(taskloop nogroup reduction(+ : m))]] // expected-error {{'reduction' clause cannot be used with 'nogroup' clause}}
 310   for (int i = 0; i < 10; ++i)
 311     m++;
 312
 313   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}}
 314 }
 315