1 // RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 %s -Wuninitialized
2 
3 // RUN: %clang_cc1 -verify -fopenmp-simd -ferror-limit 100 %s -Wuninitialized
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   T z;
17   #pragma omp parallel sections num_threads // expected-error {{expected '(' after 'num_threads'}}
18   {foo();}
19   #pragma omp parallel sections num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
20   {foo();}
21   #pragma omp parallel sections num_threads () // expected-error {{expected expression}}
22   {foo();}
23   #pragma omp parallel sections num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
24   {foo();}
25   #pragma omp parallel sections num_threads (argc)) // expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
26   {foo();}
27   #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 *'}}
28   {foo();}
29   #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}}
30   {foo();}
31   #pragma omp parallel sections num_threads (S) // expected-error {{'S' does not refer to a value}}
32   {foo();}
33   #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 *'}}
34   {foo();}
35   #pragma omp parallel sections num_threads (argc + z)
36   {foo();}
37   #pragma omp parallel sections num_threads (N) // expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}}
38   {foo();}
39 
40   return argc;
41 }
42 
43 int main(int argc, char **argv) {
44   int z;
45   #pragma omp parallel sections num_threads // expected-error {{expected '(' after 'num_threads'}}
46   {foo();}
47   #pragma omp parallel sections num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
48   {foo();}
49   #pragma omp parallel sections num_threads () // expected-error {{expected expression}}
50   {foo();}
51   #pragma omp parallel sections num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
52   {foo();}
53   #pragma omp parallel sections num_threads (argc / z)) // expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
54   {foo();}
55   #pragma omp parallel sections num_threads (argc > 0 ? argv[1] : argv[2]) // expected-error {{integral }}
56   {foo();}
57   #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}}
58   {foo();}
59   #pragma omp parallel sections num_threads (S1) // expected-error {{'S1' does not refer to a value}}
60   {foo();}
61   #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 *'}}
62   {foo();}
63   #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}}
64   {foo();}
65 
66   return tmain<int, char, 3>(argc, argv); // expected-note {{in instantiation of function template specialization 'tmain<int, char, 3>' requested here}}
67 }
68