clang/test/OpenMP/distribute_parallel_for_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 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 target
  18 #pragma omp teams
  19 #pragma omp distribute parallel for num_threads // expected-error {{expected '(' after 'num_threads'}}
  20   for (i = 0; i < argc; ++i) foo();
  21 #pragma omp target
  22 #pragma omp teams
  23 #pragma omp distribute parallel for num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  24   for (i = 0; i < argc; ++i) foo();
  25 #pragma omp target
  26 #pragma omp teams
  27 #pragma omp distribute parallel for num_threads () // expected-error {{expected expression}}
  28   for (i = 0; i < argc; ++i) foo();
  29 #pragma omp target
  30 #pragma omp teams
  31 #pragma omp distribute parallel for num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
  32   for (i = 0; i < argc; ++i) foo();
  33 #pragma omp target
  34 #pragma omp teams
  35 #pragma omp distribute parallel for num_threads (argc)) // expected-warning {{extra tokens at the end of '#pragma omp distribute parallel for' are ignored}}
  36   for (i = 0; i < argc; ++i) foo();
  37 #pragma omp target
  38 #pragma omp teams
  39 #pragma omp distribute parallel for num_threads ((argc > 0) ? argv[1] : argv[2]) // expected-error 2 {{expression must have integral or unscoped enumeration type, not 'char *'}}
  40   for (i = 0; i < argc; ++i) foo();
  41 #pragma omp target
  42 #pragma omp teams
  43 #pragma omp distribute parallel for num_threads (foobool(argc)), num_threads (true), num_threads (-5) // expected-error 2 {{directive '#pragma omp distribute parallel for' cannot contain more than one 'num_threads' clause}} expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}}
  44   for (i = 0; i < argc; ++i) foo();
  45 #pragma omp target
  46 #pragma omp teams
  47 #pragma omp distribute parallel for num_threads (S) // expected-error {{'S' does not refer to a value}}
  48   for (i = 0; i < argc; ++i) foo();
  49 #pragma omp target
  50 #pragma omp teams
  51 #pragma omp distribute parallel for 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 *'}}
  52   for (i = 0; i < argc; ++i) foo();
  53 #pragma omp target
  54 #pragma omp teams
  55 #pragma omp distribute parallel for num_threads (argc + z)
  56   for (i = 0; i < argc; ++i) foo();
  57 #pragma omp target
  58 #pragma omp teams
  59 #pragma omp distribute parallel for num_threads (N) // expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}}
  60   for (i = 0; i < argc; ++i) foo();
  61
  62   return argc;
  63 }
  64
  65 int main(int argc, char **argv) {
  66   int i, z;
  67 #pragma omp target
  68 #pragma omp teams
  69 #pragma omp distribute parallel for num_threads // expected-error {{expected '(' after 'num_threads'}}
  70   for (i = 0; i < argc; ++i) foo();
  71 #pragma omp target
  72 #pragma omp teams
  73 #pragma omp distribute parallel for num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  74   for (i = 0; i < argc; ++i) foo();
  75 #pragma omp target
  76 #pragma omp teams
  77 #pragma omp distribute parallel for num_threads () // expected-error {{expected expression}}
  78   for (i = 0; i < argc; ++i) foo();
  79 #pragma omp target
  80 #pragma omp teams
  81 #pragma omp distribute parallel for num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
  82   for (i = 0; i < argc; ++i) foo();
  83 #pragma omp target
  84 #pragma omp teams
  85 #pragma omp distribute parallel for num_threads (argc + z)) // expected-warning {{extra tokens at the end of '#pragma omp distribute parallel for' are ignored}}
  86   for (i = 0; i < argc; ++i) foo();
  87 #pragma omp target
  88 #pragma omp teams
  89 #pragma omp distribute parallel for num_threads (argc > 0 ? argv[1] : argv[2]) // expected-error {{integral }}
  90   for (i = 0; i < argc; ++i) foo();
  91 #pragma omp target
  92 #pragma omp teams
  93 #pragma omp distribute parallel for num_threads (foobool(argc)), num_threads (true), num_threads (-5) // expected-error 2 {{directive '#pragma omp distribute parallel for' cannot contain more than one 'num_threads' clause}} expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}}
  94   for (i = 0; i < argc; ++i) foo();
  95 #pragma omp target
  96 #pragma omp teams
  97 #pragma omp distribute parallel for num_threads (S1) // expected-error {{'S1' does not refer to a value}}
  98   for (i = 0; i < argc; ++i) foo();
  99 #pragma omp target
 100 #pragma omp teams
 101 #pragma omp distribute parallel for 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 *'}}
 102   for (i = 0; i < argc; ++i) foo();
 103 #pragma omp target
 104 #pragma omp teams
 105 #pragma omp distribute parallel for 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}}
 106   for (i = 0; i < argc; ++i) foo();
 107
 108   return tmain<int, char, 3>(argc, argv); // expected-note {{in instantiation of function template specialization 'tmain<int, char, 3>' requested here}}
 109 }