1// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 %s
2
3int temp; // expected-note 6 {{'temp' declared here}}
4
5#pragma omp declare reduction                                              // expected-error {{expected '(' after 'declare reduction'}}
6#pragma omp declare reduction {                                            // expected-error {{expected '(' after 'declare reduction'}}
7#pragma omp declare reduction(                                             // expected-error {{expected identifier or one of the following operators: '+', '-', '*', '&', '|', '^', '&&', or '||'}}
8#pragma omp declare reduction(#                                            // expected-error {{expected identifier or one of the following operators: '+', '-', '*', '&', '|', '^', '&&', or '||'}}
9#pragma omp declare reduction(/                                            // expected-error {{expected identifier or one of the following operators: '+', '-', '*', '&', '|', '^', '&&', or '||'}}
10#pragma omp declare reduction(+                                            // expected-error {{expected ':'}}
11#pragma omp declare reduction(for                                          // expected-error {{expected identifier or one of the following operators: '+', '-', '*', '&', '|', '^', '&&', or '||'}}
12#pragma omp declare reduction(if:                                          // expected-error {{expected identifier or one of the following operators: '+', '-', '*', '&', '|', '^', '&&', or '||'}} expected-error {{expected a type}}
13#pragma omp declare reduction(oper:                                        // expected-error {{expected a type}}
14#pragma omp declare reduction(oper;                                        // expected-error {{expected ':'}} expected-error {{expected a type}}
15#pragma omp declare reduction(fun : int                                    // expected-error {{expected ':'}} expected-error {{expected expression}}
16#pragma omp declare reduction(+ : const int:                               // expected-error {{reduction type cannot be qualified with 'const', 'volatile' or 'restrict'}}
17#pragma omp declare reduction(- : volatile int:                            // expected-error {{reduction type cannot be qualified with 'const', 'volatile' or 'restrict'}}
18#pragma omp declare reduction(* : int;                                     // expected-error {{expected ','}} expected-error {{expected a type}}
19#pragma omp declare reduction(& : double char:                             // expected-error {{cannot combine with previous 'double' declaration specifier}} expected-error {{expected expression}}
20#pragma omp declare reduction(^ : double, char, :                          // expected-error {{expected a type}} expected-error {{expected expression}}
21#pragma omp declare reduction(&& : int, S:                                 // expected-error {{unknown type name 'S'}} expected-error {{expected expression}}
22#pragma omp declare reduction(|| : int, double : temp += omp_in)           // expected-error 2 {{only 'omp_in' or 'omp_out' variables are allowed in combiner expression}}
23#pragma omp declare reduction(| : char, float : omp_out += temp)           // expected-error 2 {{only 'omp_in' or 'omp_out' variables are allowed in combiner expression}}
24#pragma omp declare reduction(fun : long : omp_out += omp_in) {            // expected-error {{expected 'initializer'}} expected-warning {{extra tokens at the end of '#pragma omp declare reduction' are ignored}}
25#pragma omp declare reduction(fun : unsigned : omp_out += temp))           // expected-error {{expected 'initializer'}} expected-warning {{extra tokens at the end of '#pragma omp declare reduction' are ignored}} expected-error {{only 'omp_in' or 'omp_out' variables are allowed in combiner expression}}
26#pragma omp declare reduction(fun : long(void) : omp_out += omp_in)        // expected-error {{reduction type cannot be a function type}}
27#pragma omp declare reduction(fun : long[3] : omp_out += omp_in)           // expected-error {{reduction type cannot be an array type}}
28#pragma omp declare reduction(fun23 : long, int, long : omp_out += omp_in) // expected-error {{redefinition of user-defined reduction for type 'long'}} expected-note {{previous definition is here}}
29
30#pragma omp declare reduction(fun222 : long : omp_out += omp_in)
31#pragma omp declare reduction(fun1 : long : omp_out += omp_in) initializer                 // expected-error {{expected '(' after 'initializer'}}
32#pragma omp declare reduction(fun2 : long : omp_out += omp_in) initializer {               // expected-error {{expected '(' after 'initializer'}} expected-error {{expected expression}} expected-warning {{extra tokens at the end of '#pragma omp declare reduction' are ignored}}
33#pragma omp declare reduction(fun3 : long : omp_out += omp_in) initializer[                // expected-error {{expected '(' after 'initializer'}} expected-error {{expected expression}} expected-warning {{extra tokens at the end of '#pragma omp declare reduction' are ignored}}
34#pragma omp declare reduction(fun4 : long : omp_out += omp_in) initializer()               // expected-error {{expected expression}}
35#pragma omp declare reduction(fun5 : long : omp_out += omp_in) initializer(temp)           // expected-error {{only 'omp_priv' or 'omp_orig' variables are allowed in initializer expression}}
36#pragma omp declare reduction(fun6 : long : omp_out += omp_in) initializer(omp_orig        // expected-error {{expected ')'}} expected-note {{to match this '('}}
37#pragma omp declare reduction(fun7 : long : omp_out += omp_in) initializer(omp_priv 12)    // expected-error {{expected ')'}} expected-note {{to match this '('}}
38#pragma omp declare reduction(fun8 : long : omp_out += omp_in) initializer(omp_priv = 23)  // expected-note {{previous definition is here}}
39#pragma omp declare reduction(fun8 : long : omp_out += omp_in) initializer(omp_priv = 23)) // expected-warning {{extra tokens at the end of '#pragma omp declare reduction' are ignored}} expected-error {{redefinition of user-defined reduction for type 'long'}}
40#pragma omp declare reduction(fun9 : long : omp_out += omp_in) initializer(omp_priv = )    // expected-error {{expected expression}}
41
42int fun(int arg) {
43#pragma omp declare reduction(red : int : omp_out++)
44  {
45#pragma omp declare reduction(red : int : omp_out++) // expected-note {{previous definition is here}}
46#pragma omp declare reduction(red : int : omp_out++) // expected-error {{redefinition of user-defined reduction for type 'int'}}
47    {
48#pragma omp declare reduction(red : int : omp_out++)
49    }
50  }
51  return arg;
52}
53