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 #define redef_num_threads(a, b) num_threads(a)
15 
16 template <class T, typename S, int N> // expected-note {{declared here}}
17 T tmain(T argc, S **argv) {
18   T z;
19   #pragma omp parallel num_threads // expected-error {{expected '(' after 'num_threads'}}
20   #pragma omp parallel num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
21   #pragma omp parallel num_threads () // expected-error {{expected expression}}
22   #pragma omp parallel num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
23   #pragma omp parallel num_threads (argc)) // expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
24   #pragma omp parallel num_threads ((argc > 0) ? argv[1] : argv[2]) // expected-error 2 {{expression must have integral or unscoped enumeration type, not 'char *'}}
25   #pragma omp parallel num_threads (foobool(argc)), num_threads (true), num_threads (-5) // expected-error 2 {{directive '#pragma omp parallel' cannot contain more than one 'num_threads' clause}} expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}}
26   #pragma omp parallel num_threads (S) // expected-error {{'S' does not refer to a value}}
27   #pragma omp parallel 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 *'}}
28   #pragma omp parallel num_threads (argc+z)
29   #pragma omp parallel num_threads (N) // expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}}
30   #pragma omp parallel redef_num_threads (argc, argc)
31   foo();
32 
33   return argc;
34 }
35 
36 int main(int argc, char **argv) {
37 int z;
38   #pragma omp parallel num_threads // expected-error {{expected '(' after 'num_threads'}}
39   #pragma omp parallel num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
40   #pragma omp parallel num_threads () // expected-error {{expected expression}}
41   #pragma omp parallel num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
42   #pragma omp parallel num_threads (z+argc)) // expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
43   #pragma omp parallel num_threads (argc > 0 ? argv[1] : argv[2]) // expected-error {{integral }}
44   #pragma omp parallel num_threads (foobool(argc)), num_threads (true), num_threads (-5) // expected-error 2 {{directive '#pragma omp parallel' cannot contain more than one 'num_threads' clause}} expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}}
45   #pragma omp parallel num_threads (S1) // expected-error {{'S1' does not refer to a value}}
46   #pragma omp parallel 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 *'}}
47   #pragma omp parallel 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}}
48   #pragma omp parallel redef_num_threads (argc, argc)
49   foo();
50 
51   return tmain<int, char, 3>(argc, argv); // expected-note {{in instantiation of function template specialization 'tmain<int, char, 3>' requested here}}
52 }
53