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