1 // RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 %s
2 
3 // RUN: %clang_cc1 -verify -fopenmp-simd -ferror-limit 100 %s
4 
5 void foo() {
6 }
7 
8 bool foobool(int argc) {
9   return argc;
10 }
11 
12 struct S1; // expected-note {{declared here}}
13 
14 template <class T, typename S, int N> // expected-note {{declared here}}
15 T tmain(T argc, S **argv) {
16   #pragma omp parallel sections num_threads // expected-error {{expected '(' after 'num_threads'}}
17   {foo();}
18   #pragma omp parallel sections num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
19   {foo();}
20   #pragma omp parallel sections num_threads () // expected-error {{expected expression}}
21   {foo();}
22   #pragma omp parallel sections num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
23   {foo();}
24   #pragma omp parallel sections num_threads (argc)) // expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
25   {foo();}
26   #pragma omp parallel sections num_threads ((argc > 0) ? argv[1] : argv[2]) // expected-error 2 {{expression must have integral or unscoped enumeration type, not 'char *'}}
27   {foo();}
28   #pragma omp parallel sections num_threads (foobool(argc)), num_threads (true), num_threads (-5) // expected-error 2 {{directive '#pragma omp parallel sections' cannot contain more than one 'num_threads' clause}} expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}}
29   {foo();}
30   #pragma omp parallel sections num_threads (S) // expected-error {{'S' does not refer to a value}}
31   {foo();}
32   #pragma omp parallel sections num_threads (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error 2 {{expression must have integral or unscoped enumeration type, not 'char *'}}
33   {foo();}
34   #pragma omp parallel sections num_threads (argc)
35   {foo();}
36   #pragma omp parallel sections num_threads (N) // expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}}
37   {foo();}
38 
39   return argc;
40 }
41 
42 int main(int argc, char **argv) {
43   #pragma omp parallel sections num_threads // expected-error {{expected '(' after 'num_threads'}}
44   {foo();}
45   #pragma omp parallel sections num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
46   {foo();}
47   #pragma omp parallel sections num_threads () // expected-error {{expected expression}}
48   {foo();}
49   #pragma omp parallel sections num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
50   {foo();}
51   #pragma omp parallel sections num_threads (argc)) // expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
52   {foo();}
53   #pragma omp parallel sections num_threads (argc > 0 ? argv[1] : argv[2]) // expected-error {{integral }}
54   {foo();}
55   #pragma omp parallel sections num_threads (foobool(argc)), num_threads (true), num_threads (-5) // expected-error 2 {{directive '#pragma omp parallel sections' cannot contain more than one 'num_threads' clause}} expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}}
56   {foo();}
57   #pragma omp parallel sections num_threads (S1) // expected-error {{'S1' does not refer to a value}}
58   {foo();}
59   #pragma omp parallel sections num_threads (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{expression must have integral or unscoped enumeration type, not 'char *'}}
60   {foo();}
61   #pragma omp parallel sections num_threads (num_threads(tmain<int, char, -1>(argc, argv) // expected-error 2 {{expected ')'}} expected-note 2 {{to match this '('}} expected-note {{in instantiation of function template specialization 'tmain<int, char, -1>' requested here}}
62   {foo();}
63 
64   return tmain<int, char, 3>(argc, argv); // expected-note {{in instantiation of function template specialization 'tmain<int, char, 3>' requested here}}
65 }
66