clang/test/OpenMP/parallel_for_simd_num_threads_messages.cpp

   1 // RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized
   2
   3 // RUN: %clang_cc1 -verify -fopenmp-simd %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 template <class T, typename S, int N> // expected-note {{declared here}}
  15 T tmain(T argc, S **argv) {
  16   T i, z;
  17   #pragma omp parallel for simd num_threads // expected-error {{expected '(' after 'num_threads'}}
  18   for (i = 0; i < argc; ++i) foo();
  19   #pragma omp parallel for simd num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  20   for (i = 0; i < argc; ++i) foo();
  21   #pragma omp parallel for simd num_threads () // expected-error {{expected expression}}
  22   for (i = 0; i < argc; ++i) foo();
  23   #pragma omp parallel for simd num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
  24   for (i = 0; i < argc; ++i) foo();
  25   #pragma omp parallel for simd num_threads (argc)) // expected-warning {{extra tokens at the end of '#pragma omp parallel for simd' are ignored}}
  26   for (i = 0; i < argc; ++i) foo();
  27   #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 *'}}
  28   for (i = 0; i < argc; ++i) foo();
  29   #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}}
  30   for (i = 0; i < argc; ++i) foo();
  31   #pragma omp parallel for simd num_threads (S) // expected-error {{'S' does not refer to a value}}
  32   for (i = 0; i < argc; ++i) foo();
  33   #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 *'}}
  34   for (i = 0; i < argc; ++i) foo();
  35   #pragma omp parallel for simd num_threads (argc + z)
  36   for (i = 0; i < argc; ++i) foo();
  37   #pragma omp parallel for simd num_threads (N) // expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}}
  38   for (i = 0; i < argc; ++i) foo();
  39
  40   return argc;
  41 }
  42
  43 int main(int argc, char **argv) {
  44   int i, z;
  45   #pragma omp parallel for simd num_threads // expected-error {{expected '(' after 'num_threads'}}
  46   for (i = 0; i < argc; ++i) foo();
  47   #pragma omp parallel for simd num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  48   for (i = 0; i < argc; ++i) foo();
  49   #pragma omp parallel for simd num_threads () // expected-error {{expected expression}}
  50   for (i = 0; i < argc; ++i) foo();
  51   #pragma omp parallel for simd num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
  52   for (i = 0; i < argc; ++i) foo();
  53   #pragma omp parallel for simd num_threads (argc * z)) // expected-warning {{extra tokens at the end of '#pragma omp parallel for simd' are ignored}}
  54   for (i = 0; i < argc; ++i) foo();
  55   #pragma omp parallel for simd num_threads (argc > 0 ? argv[1] : argv[2]) // expected-error {{integral }}
  56   for (i = 0; i < argc; ++i) foo();
  57   #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}}
  58   for (i = 0; i < argc; ++i) foo();
  59   #pragma omp parallel for simd num_threads (S1) // expected-error {{'S1' does not refer to a value}}
  60   for (i = 0; i < argc; ++i) foo();
  61   #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 *'}}
  62   for (i = 0; i < argc; ++i) foo();
  63   #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}}
  64   for (i = 0; i < argc; ++i) foo();
  65
  66   return tmain<int, char, 3>(argc, argv); // expected-note {{in instantiation of function template specialization 'tmain<int, char, 3>' requested here}}
  67 }