clang/test/OpenMP/target_teams_messages.cpp

   1 // RUN: %clang_cc1 -verify -fopenmp -std=c++11 -o - %s -Wuninitialized
   2
   3 // RUN: %clang_cc1 -verify -fopenmp-simd -std=c++11 -o - %s -Wuninitialized
   4
   5 void xxx(int argc) {
   6   int x; // expected-note {{initialize the variable 'x' to silence this warning}}
   7 #pragma omp target teams
   8   argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
   9 }
  10
  11 void foo() {
  12 }
  13
  14 #pragma omp target teams // expected-error {{unexpected OpenMP directive '#pragma omp target teams'}}
  15
  16 int main(int argc, char **argv) {
  17 #pragma omp target teams { // expected-warning {{extra tokens at the end of '#pragma omp target teams' are ignored}}
  18   foo();
  19 #pragma omp target teams ( // expected-warning {{extra tokens at the end of '#pragma omp target teams' are ignored}}
  20   foo();
  21 #pragma omp target teams [ // expected-warning {{extra tokens at the end of '#pragma omp target teams' are ignored}}
  22   foo();
  23 #pragma omp target teams ] // expected-warning {{extra tokens at the end of '#pragma omp target teams' are ignored}}
  24   foo();
  25 #pragma omp target teams ) // expected-warning {{extra tokens at the end of '#pragma omp target teams' are ignored}}
  26   foo();
  27 #pragma omp target teams } // expected-warning {{extra tokens at the end of '#pragma omp target teams' are ignored}}
  28   foo();
  29 #pragma omp target teams
  30   foo();
  31 #pragma omp target teams unknown() // expected-warning {{extra tokens at the end of '#pragma omp target teams' are ignored}}
  32   foo();
  33   L1:
  34     foo();
  35 #pragma omp target teams
  36   ;
  37 #pragma omp target teams
  38   {
  39     goto L1; // expected-error {{use of undeclared label 'L1'}}
  40     argc++;
  41   }
  42
  43   for (int i = 0; i < 10; ++i) {
  44     switch(argc) {
  45      case (0):
  46       #pragma omp target teams
  47       {
  48         foo();
  49         break; // expected-error {{'break' statement not in loop or switch statement}}
  50         continue; // expected-error {{'continue' statement not in loop statement}}
  51       }
  52       default:
  53        break;
  54     }
  55   }
  56 #pragma omp target teams default(none) // expected-note {{explicit data sharing attribute requested here}}
  57   ++argc; // expected-error {{variable 'argc' must have explicitly specified data sharing attributes}}
  58
  59 #pragma omp target teams default(none) // expected-note {{explicit data sharing attribute requested here}}
  60 #pragma omp parallel num_threads(argc) // expected-error {{variable 'argc' must have explicitly specified data sharing attributes}}
  61   ;
  62
  63 #pragma omp target teams default(none) // expected-note {{explicit data sharing attribute requested here}}
  64   {
  65 #pragma omp parallel num_threads(argc) // expected-error {{variable 'argc' must have explicitly specified data sharing attributes}}
  66     ;
  67   }
  68
  69   goto L2; // expected-error {{use of undeclared label 'L2'}}
  70 #pragma omp target teams
  71   L2:
  72   foo();
  73 #pragma omp target teams
  74   {
  75     return 1; // expected-error {{cannot return from OpenMP region}}
  76   }
  77
  78   [[]] // expected-error {{an attribute list cannot appear here}}
  79 #pragma omp target teams
  80   for (int n = 0; n < 100; ++n) {}
  81
  82   return 0;
  83 }