clang/test/OpenMP/target_parallel_num_threads_messages.cpp

   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 target parallel num_threads // expected-error {{expected '(' after 'num_threads'}}
  20   foo();
  21   #pragma omp target parallel num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  22   foo();
  23   #pragma omp target parallel num_threads () // expected-error {{expected expression}}
  24   foo();
  25   #pragma omp target parallel num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
  26   foo();
  27   #pragma omp target parallel num_threads (argc)) // expected-warning {{extra tokens at the end of '#pragma omp target parallel' are ignored}}
  28   foo();
  29   #pragma omp target parallel num_threads ((argc > 0) ? argv[1] : argv[2]) // expected-error 2 {{expression must have integral or unscoped enumeration type, not 'char *'}}
  30   foo();
  31   #pragma omp target parallel num_threads (foobool(argc)), num_threads (true), num_threads (-5) // expected-error 2 {{directive '#pragma omp target parallel' cannot contain more than one 'num_threads' clause}} expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}}
  32   foo();
  33   #pragma omp target parallel num_threads (S) // expected-error {{'S' does not refer to a value}}
  34   foo();
  35   #pragma omp target 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 *'}}
  36   foo();
  37   #pragma omp target parallel num_threads (argc + z)
  38   foo();
  39   #pragma omp target parallel num_threads (N) // expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}}
  40   foo();
  41   #pragma omp target parallel redef_num_threads (argc, argc)
  42   foo();
  43
  44   return argc;
  45 }
  46
  47 int main(int argc, char **argv) {
  48   int z;
  49   #pragma omp target parallel num_threads // expected-error {{expected '(' after 'num_threads'}}
  50   foo();
  51   #pragma omp target parallel num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  52   foo();
  53   #pragma omp target parallel num_threads () // expected-error {{expected expression}}
  54   foo();
  55   #pragma omp target parallel num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
  56   foo();
  57   #pragma omp target parallel num_threads (z + argc)) // expected-warning {{extra tokens at the end of '#pragma omp target parallel' are ignored}}
  58   foo();
  59   #pragma omp target parallel num_threads (argc > 0 ? argv[1] : argv[2]) // expected-error {{integral }}
  60   foo();
  61   #pragma omp target parallel num_threads (foobool(argc)), num_threads (true), num_threads (-5) // expected-error 2 {{directive '#pragma omp target parallel' cannot contain more than one 'num_threads' clause}} expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}}
  62   foo();
  63   #pragma omp target parallel num_threads (S1) // expected-error {{'S1' does not refer to a value}}
  64   foo();
  65   #pragma omp target 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 *'}}
  66   foo();
  67   #pragma omp target 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}}
  68   foo();
  69   #pragma omp target parallel redef_num_threads (argc, argc)
  70   foo();
  71
  72   return tmain<int, char, 3>(argc, argv); // expected-note {{in instantiation of function template specialization 'tmain<int, char, 3>' requested here}}
  73 }