llvm-project/clang/test/OpenMP/parallel_default_messages.cpp

// RUN: %clang_cc1 -verify=expected,ge40 -fopenmp -ferror-limit 100 -o - %s -Wuninitialized
// RUN: %clang_cc1 -verify=expected,ge40 -fopenmp-simd -ferror-limit 100 -o - %s -Wuninitialized
// RUN: %clang_cc1 -verify=expected,ge40 -fopenmp-version=50 -fopenmp -ferror-limit 100 -o - %s -Wuninitialized
// RUN: %clang_cc1 -verify=expected,ge40 -fopenmp-version=40 -fopenmp -ferror-limit 100 -o - %s -Wuninitialized
// RUN: %clang_cc1 -verify -fopenmp-version=31 -fopenmp -ferror-limit 100 -o - %s -Wuninitialized
// RUN: %clang_cc1 -verify -fopenmp-version=30 -fopenmp -ferror-limit 100 -o - %s -Wuninitialized

void foo();

int main(int argc, char **argv) {
  const int c = 0;

  #pragma omp parallel default // expected-error {{expected '(' after 'default'}}
  #pragma omp parallel default ( // expected-error {{expected 'none' or 'shared' in OpenMP clause 'default'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  #pragma omp parallel default () // expected-error {{expected 'none' or 'shared' in OpenMP clause 'default'}}
  #pragma omp parallel default (none // expected-error {{expected ')'}} expected-note {{to match this '('}}
  #pragma omp parallel default (shared), default(shared) // expected-error {{directive '#pragma omp parallel' cannot contain more than one 'default' clause}}
  #pragma omp parallel default (x) // expected-error {{expected 'none' or 'shared' in OpenMP clause 'default'}}
  foo();

  #pragma omp parallel default(none) // expected-note {{explicit data sharing attribute requested here}}
  ++argc; // expected-error {{variable 'argc' must have explicitly specified data sharing attributes}}

  #pragma omp parallel default(none) // expected-note {{explicit data sharing attribute requested here}}
  #pragma omp parallel default(shared)
  ++argc; // expected-error {{variable 'argc' must have explicitly specified data sharing attributes}}

  #pragma omp parallel default(none) // ge40-note {{explicit data sharing attribute requested here}}
  (void)c; // ge40-error {{variable 'c' must have explicitly specified data sharing attributes}}
  return 0;
}