clang/test/OpenMP/teams_messages.cpp

   1 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-version=45 -fopenmp -std=c++11 -o - %s -Wuninitialized
   2 // RUN: %clang_cc1 -verify -fopenmp -std=c++11 -o - %s -Wuninitialized
   3
   4 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-version=45 -fopenmp-simd -std=c++11 -o - %s -Wuninitialized
   5 // RUN: %clang_cc1 -verify -fopenmp-simd -std=c++11 -o - %s -Wuninitialized
   6
   7 void xxx(int argc) {
   8   int x; // expected-note {{initialize the variable 'x' to silence this warning}}
   9 #pragma omp target
  10 #pragma omp teams
  11   argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
  12 }
  13
  14 void foo() {
  15 }
  16
  17 #pragma omp teams // expected-error {{unexpected OpenMP directive '#pragma omp teams'}}
  18
  19 int main(int argc, char **argv) {
  20   #pragma omp teams // omp45-error {{orphaned 'omp teams' directives are prohibited; perhaps you forget to enclose the directive into a target region?}}
  21   ;
  22   #pragma omp target
  23   #pragma omp teams
  24   f; // expected-error {{use of undeclared identifier 'f'}}
  25   #pragma omp target
  26   #pragma omp teams { // expected-warning {{extra tokens at the end of '#pragma omp teams' are ignored}}
  27   foo();
  28   #pragma omp target
  29   #pragma omp teams ( // expected-warning {{extra tokens at the end of '#pragma omp teams' are ignored}}
  30   foo();
  31   #pragma omp target
  32   #pragma omp teams [ // expected-warning {{extra tokens at the end of '#pragma omp teams' are ignored}}
  33   foo();
  34   #pragma omp target
  35   #pragma omp teams ] // expected-warning {{extra tokens at the end of '#pragma omp teams' are ignored}}
  36   foo();
  37   #pragma omp target
  38   #pragma omp teams ) // expected-warning {{extra tokens at the end of '#pragma omp teams' are ignored}}
  39   foo();
  40   #pragma omp target
  41   #pragma omp teams } // expected-warning {{extra tokens at the end of '#pragma omp teams' are ignored}}
  42   foo();
  43   #pragma omp target
  44   #pragma omp teams
  45   foo();
  46   // expected-warning@+2 {{extra tokens at the end of '#pragma omp teams' are ignored}}
  47   #pragma omp target
  48   #pragma omp teams unknown()
  49   foo();
  50   L1:
  51     foo();
  52   #pragma omp target
  53   #pragma omp teams
  54   ;
  55   #pragma omp target
  56   #pragma omp teams
  57   {
  58     goto L1; // expected-error {{use of undeclared label 'L1'}}
  59     argc++;
  60   }
  61
  62   for (int i = 0; i < 10; ++i) {
  63     switch(argc) {
  64      case (0):
  65       #pragma omp target
  66       #pragma omp teams
  67       {
  68         foo();
  69         break; // expected-error {{'break' statement not in loop or switch statement}}
  70         continue; // expected-error {{'continue' statement not in loop statement}}
  71       }
  72       default:
  73        break;
  74     }
  75   }
  76   #pragma omp target
  77   #pragma omp teams default(none) // expected-note {{explicit data sharing attribute requested here}}
  78   ++argc; // expected-error {{variable 'argc' must have explicitly specified data sharing attributes}}
  79
  80   goto L2; // expected-error {{use of undeclared label 'L2'}}
  81   #pragma omp target
  82   #pragma omp teams
  83   L2:
  84   foo();
  85   #pragma omp target
  86   #pragma omp teams
  87   {
  88     return 1; // expected-error {{cannot return from OpenMP region}}
  89   }
  90
  91   [[]] // expected-error {{an attribute list cannot appear here}}
  92   #pragma omp target
  93   #pragma omp teams
  94   for (int n = 0; n < 100; ++n) {}
  95
  96   return 0;
  97 }
  98