// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 %s

void foo() {
}

bool foobool(int argc) {
  return argc;
}

struct S1; // expected-note {{declared here}}

template <class T, class S> // expected-note {{declared here}}
int tmain(T argc, S **argv) {
  #pragma omp taskloop grainsize // expected-error {{expected '(' after 'grainsize'}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize () // expected-error {{expected expression}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize (argc)) // expected-warning {{extra tokens at the end of '#pragma omp taskloop' are ignored}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize (argc > 0 ? argv[1][0] : argv[2][argc])
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize (foobool(argc)), grainsize (true) // expected-error {{directive '#pragma omp taskloop' cannot contain more than one 'grainsize' clause}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize (S) // expected-error {{'S' does not refer to a value}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize (argc argc) // expected-error {{expected ')'}} expected-note {{to match this '('}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize(0) // expected-error {{argument to 'grainsize' clause must be a strictly positive integer value}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize(-1) // expected-error {{argument to 'grainsize' clause must be a strictly positive integer value}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize(argc) num_tasks(argc) // expected-error {{'num_tasks' and 'grainsize' clause are mutually exclusive and may not appear on the same directive}} expected-note {{'grainsize' clause is specified here}}
  for (int i = 0; i < 10; ++i)
    foo();

  return 0;
}

int main(int argc, char **argv) {
  #pragma omp taskloop grainsize // expected-error {{expected '(' after 'grainsize'}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize () // expected-error {{expected expression}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize (argc)) // expected-warning {{extra tokens at the end of '#pragma omp taskloop' are ignored}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize (argc > 0 ? argv[1][0] : argv[2][argc])
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize (foobool(argc)), grainsize (true) // expected-error {{directive '#pragma omp taskloop' cannot contain more than one 'grainsize' clause}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize (S1) // expected-error {{'S1' does not refer to a value}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize (argc argc) // expected-error {{expected ')'}} expected-note {{to match this '('}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize (1 0) // expected-error {{expected ')'}} expected-note {{to match this '('}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize(if(tmain(argc, argv) // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize(0)  // expected-error {{argument to 'grainsize' clause must be a strictly positive integer value}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize(-1) // expected-error {{argument to 'grainsize' clause must be a strictly positive integer value}}
  for (int i = 0; i < 10; ++i)
    foo();
  #pragma omp taskloop grainsize(argc) num_tasks(argc) // expected-error {{'num_tasks' and 'grainsize' clause are mutually exclusive and may not appear on the same directive}} expected-note {{'grainsize' clause is specified here}}
  for (int i = 0; i < 10; ++i)
    foo();

  return tmain(argc, argv);
}