// RUN: %clang_cc1 -verify=omp50,expected,cxx17 -fopenmp -fopenmp-version=50 -ferror-limit 100 %std_cxx17- %s
// RUN: %clang_cc1 -verify=omp50,expected,precxx17 -fopenmp-simd -fopenmp-version=50 -ferror-limit 100 %std_cxx98-14 %s

// RUN: %clang_cc1 -verify=omp51,expected,cxx17 -fopenmp -ferror-limit 100 %std_cxx17- %s
// RUN: %clang_cc1 -verify=omp51,expected,precxx17 -fopenmp-simd -ferror-limit 100 %std_cxx98-14 %s

int temp; // expected-note {{'temp' declared here}}

class vec {
private:
  int p;                                                                // expected-note {{declared private here}}
public:
  int len;
#pragma omp declare mapper(id: vec v) map(v.len)
  double *data;
};

#pragma omp declare mapper                                              // expected-error {{expected '(' after 'declare mapper'}}
#pragma omp declare mapper {                                            // expected-error {{expected '(' after 'declare mapper'}}
#pragma omp declare mapper(                                             // expected-error {{expected a type}} expected-error {{expected declarator on 'omp declare mapper' directive}}
#pragma omp declare mapper(#                                            // expected-error {{expected a type}} expected-error {{expected declarator on 'omp declare mapper' directive}}
#pragma omp declare mapper(v                                            // expected-error {{unknown type name 'v'}} expected-error {{expected declarator on 'omp declare mapper' directive}}
#pragma omp declare mapper(vec                                          // expected-error {{expected declarator on 'omp declare mapper' directive}}
#pragma omp declare mapper(S v                                          // expected-error {{unknown type name 'S'}}
#pragma omp declare mapper(vec v                                        // expected-error {{expected ')'}} expected-note {{to match this '('}}
#pragma omp declare mapper(aa: vec v)                                   // expected-error {{expected at least one clause on '#pragma omp declare mapper' directive}}
#pragma omp declare mapper(bb: vec v) private(v)                        // expected-error {{expected at least one clause on '#pragma omp declare mapper' directive}} // expected-error {{unexpected OpenMP clause 'private' in directive '#pragma omp declare mapper'}}
#pragma omp declare mapper(cc: vec v) map(v) (                          // expected-warning {{extra tokens at the end of '#pragma omp declare mapper' are ignored}}

#pragma omp declare mapper(++: vec v) map(v.len)                        // expected-error {{illegal OpenMP user-defined mapper identifier}}
#pragma omp declare mapper(id1: vec v) map(v.len, temp)                 // expected-error {{only variable 'v' is allowed in map clauses of this 'omp declare mapper' directive}}
#pragma omp declare mapper(default : vec kk) map(kk.data[0:2])          // expected-note {{previous definition is here}}
#pragma omp declare mapper(vec v) map(v.len)                            // expected-error {{redefinition of user-defined mapper for type 'vec' with name 'default'}}
#pragma omp declare mapper(int v) map(v)                                // expected-error {{mapper type must be of struct, union or class type}}
#pragma omp declare mapper(id2: vec v) map(v.len, v.p)                  // expected-error {{'p' is a private member of 'vec'}}

namespace N1 {
template <class T>
class stack {                                                           // expected-note {{template is declared here}}
public:
  int len;
  T *data;
#pragma omp declare mapper(id: vec v) map(v.len)                        // expected-note {{previous definition is here}}
#pragma omp declare mapper(id: vec v) map(v.len)                        // expected-error {{redefinition of user-defined mapper for type 'vec' with name 'id'}}
};
};

#pragma omp declare mapper(default : N1::stack s) map(s.len)            // precxx17-error {{use of class template 'N1::stack' requires template arguments}} \
                                                                           cxx17-error {{use of class template 'stack' requires template arguments; argument deduction not allowed in function prototype}}
#pragma omp declare mapper(id1: N1::stack<int> s) map(s.data)
#pragma omp declare mapper(default : S<int> s) map(s.len)               // expected-error {{no template named 'S'}}

template <class T>
T foo(T a) {
#pragma omp declare mapper(id: vec v) map(v.len)                        // expected-note {{previous definition is here}}
#pragma omp declare mapper(id: vec v) map(v.len)                        // expected-error {{redefinition of user-defined mapper for type 'vec' with name 'id'}}
}

int fun(int arg) {
#pragma omp declare mapper(id: vec v) map(v.len)
  {
#pragma omp declare mapper(id: vec v) map(v.len)                        // expected-note {{previous definition is here}}
    {
#pragma omp declare mapper(id: vec v) map(v.len)
      vec vv, v1;
      vec arr[10];
#pragma omp target map(mapper)                                          // expected-error {{use of undeclared identifier 'mapper'}}
      {}
#pragma omp target map(mapper:vv)                                       // expected-error {{expected '(' after 'mapper'}}
      {}
#pragma omp target map(mapper( :vv)                                     // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
      {}
#pragma omp target map(mapper(aa :vv)                                   // expected-error {{use of undeclared identifier 'aa'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
      {}
#pragma omp target map(mapper(ab) :vv)                                  // expected-error {{missing map type}} expected-error {{cannot find a valid user-defined mapper for type 'vec' with name 'ab'}}
      {}
#pragma omp target map(mapper(N2::) :vv)                                // expected-error {{use of undeclared identifier 'N2'}} expected-error {{illegal OpenMP user-defined mapper identifier}}
      {}
#pragma omp target map(mapper(N1::) :vv)                                // expected-error {{illegal OpenMP user-defined mapper identifier}}
      {}
#pragma omp target map(mapper(aa) :vv)                                  // expected-error {{missing map type}}
      {}
#pragma omp target map(mapper(N1::aa) alloc:vv)                         // expected-error {{cannot find a valid user-defined mapper for type 'vec' with name 'aa'}}
      {}
#pragma omp target map(mapper(N1::aa) alloc:arr[0:2])                   // expected-error {{cannot find a valid user-defined mapper for type 'vec' with name 'aa'}}
      {}
#pragma omp target map(mapper(aa) to:vv) map(close mapper(aa) from:v1) map(mapper(aa) to:arr[0])
      {}
#pragma omp target map(mapper(N1::stack<int>::id) to:vv)
      {}

#pragma omp target update to(mapper)                                    // expected-error {{expected '(' after 'mapper'}} expected-error {{expected expression}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update to(mapper()                                   // expected-error {{illegal OpenMP user-defined mapper identifier}} expected-error {{expected expression}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update to(mapper:vv)                                 // expected-error {{expected '(' after 'mapper'}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update to(mapper(:vv)                                // expected-error {{illegal OpenMP user-defined mapper identifier}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update to(mapper(aa :vv)                             // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update to(mapper(N2:: :vv)                           // expected-error {{use of undeclared identifier 'N2'}} expected-error {{illegal OpenMP user-defined mapper identifier}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update to(mapper(N1:: :vv)                           // expected-error {{illegal OpenMP user-defined mapper identifier}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update to(mapper(N1::aa) :vv)                        // expected-error {{cannot find a valid user-defined mapper for type 'vec' with name 'aa'}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update to(mapper(ab):vv)                             // expected-error {{cannot find a valid user-defined mapper for type 'vec' with name 'ab'}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update to(mapper(ab):arr[0:2])                       // expected-error {{cannot find a valid user-defined mapper for type 'vec' with name 'ab'}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update to(mapper(aa) a:vv)                           // omp51-warning {{missing ':' after motion modifier - ignoring}} omp50-warning {{missing ':' after ) - ignoring}}
#pragma omp target update to(mapper(aa):vv) to(mapper(aa):arr[0])
#pragma omp target update to(mapper(N1::stack<int>::id) :vv)

#pragma omp target update from(mapper)                                  // expected-error {{expected '(' after 'mapper'}} expected-error {{expected expression}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update from(mapper()                                 // expected-error {{illegal OpenMP user-defined mapper identifier}} expected-error {{expected expression}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update from(mapper:vv)                               // expected-error {{expected '(' after 'mapper'}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update from(mapper(:vv)                              // expected-error {{illegal OpenMP user-defined mapper identifier}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update from(mapper(aa :vv)                           // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update from(mapper(N2:: :vv)                         // expected-error {{use of undeclared identifier 'N2'}} expected-error {{illegal OpenMP user-defined mapper identifier}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update from(mapper(N1:: :vv)                         // expected-error {{illegal OpenMP user-defined mapper identifier}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update from(mapper(N1::aa) :vv)                      // expected-error {{cannot find a valid user-defined mapper for type 'vec' with name 'aa'}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update from(mapper(ab):vv)                           // expected-error {{cannot find a valid user-defined mapper for type 'vec' with name 'ab'}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update from(mapper(ab):arr[0:2])                     // expected-error {{cannot find a valid user-defined mapper for type 'vec' with name 'ab'}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
#pragma omp target update from(mapper(aa) a:vv)                         // omp51-warning {{missing ':' after motion modifier - ignoring}} omp50-warning {{missing ':' after ) - ignoring}}
#pragma omp target update from(mapper(aa):vv) from(mapper(aa):arr[0])
#pragma omp target update from(mapper(N1::stack<int>::id) :vv)
    }
#pragma omp declare mapper(id: vec v) map(v.len)                        // expected-error {{redefinition of user-defined mapper for type 'vec' with name 'id'}}
  }
  return arg;
}