clang/test/OpenMP/target_teams_distribute_messages.cpp

   1 // RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 -std=c++11 -o - %s -Wuninitialized
   2
   3 // RUN: %clang_cc1 -verify -fopenmp-simd -ferror-limit 100 -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 distribute
   8   for (int i = 0; i < 10; ++i)
   9     argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
  10 }
  11
  12 void foo() {
  13 }
  14
  15 static int pvt;
  16 #pragma omp threadprivate(pvt)
  17
  18 #pragma omp target teams distribute // expected-error {{unexpected OpenMP directive '#pragma omp target teams distribute'}}
  19
  20 int main(int argc, char **argv) {
  21 #pragma omp target teams distribute { // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute' are ignored}}
  22   for (int i = 0; i < argc; ++i)
  23     foo();
  24 #pragma omp target teams distribute ( // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute' are ignored}}
  25   for (int i = 0; i < argc; ++i)
  26     foo();
  27 #pragma omp target teams distribute[ // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute' are ignored}}
  28   for (int i = 0; i < argc; ++i)
  29     foo();
  30 #pragma omp target teams distribute] // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute' are ignored}}
  31   for (int i = 0; i < argc; ++i)
  32     foo();
  33 #pragma omp target teams distribute) // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute' are ignored}}
  34   for (int i = 0; i < argc; ++i)
  35     foo();
  36 #pragma omp target teams distribute } // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute' are ignored}}
  37   for (int i = 0; i < argc; ++i)
  38     foo();
  39 #pragma omp target teams distribute
  40   for (int i = 0; i < argc; ++i)
  41     foo();
  42 // expected-warning@+1 {{extra tokens at the end of '#pragma omp target teams distribute' are ignored}}
  43 #pragma omp target teams distribute unknown()
  44   for (int i = 0; i < argc; ++i)
  45     foo();
  46 L1:
  47   for (int i = 0; i < argc; ++i)
  48     foo();
  49 #pragma omp target teams distribute
  50   for (int i = 0; i < argc; ++i)
  51     foo();
  52 #pragma omp target teams distribute
  53   for (int i = 0; i < argc; ++i) {
  54     goto L1; // expected-error {{use of undeclared label 'L1'}}
  55     argc++;
  56   }
  57
  58   for (int i = 0; i < 10; ++i) {
  59     switch (argc) {
  60     case (0):
  61 #pragma omp target teams distribute
  62       for (int i = 0; i < argc; ++i) {
  63         foo();
  64         break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}
  65         continue;
  66       }
  67     default:
  68       break;
  69     }
  70   }
  71 #pragma omp target teams distribute default(none) // expected-note {{explicit data sharing attribute requested here}}
  72   for (int i = 0; i < 10; ++i)
  73     ++argc; // expected-error {{variable 'argc' must have explicitly specified data sharing attributes}}
  74
  75   goto L2; // expected-error {{use of undeclared label 'L2'}}
  76 #pragma omp target teams distribute
  77   for (int i = 0; i < argc; ++i)
  78   L2:
  79   foo();
  80 #pragma omp target teams distribute
  81   for (int i = 0; i < argc; ++i) {
  82     return 1; // expected-error {{cannot return from OpenMP region}}
  83   }
  84
  85   [[]] // expected-error {{an attribute list cannot appear here}}
  86 #pragma omp target teams distribute
  87       for (int n = 0; n < 100; ++n) {
  88   }
  89
  90 #pragma omp target teams distribute copyin(pvt) // expected-error {{unexpected OpenMP clause 'copyin' in directive '#pragma omp target teams distribute'}}
  91   for (int n = 0; n < 100; ++n) {}
  92
  93   return 0;
  94 }
  95
  96 void test_ordered() {
  97 #pragma omp target teams distribute ordered // expected-error {{unexpected OpenMP clause 'ordered' in directive '#pragma omp target teams distribute'}}
  98   for (int i = 0; i < 16; ++i)
  99     ;
 100 }
 101