clang/test/OpenMP/target_teams_distribute_simd_messages.cpp

   1 // RUN: %clang_cc1 -verify -fopenmp -std=c++11 %s -Wuninitialized
   2
   3 // RUN: %clang_cc1 -verify -fopenmp-simd -std=c++11 %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 simd
   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 simd // expected-error {{unexpected OpenMP directive '#pragma omp target teams distribute simd'}}
  19
  20 int main(int argc, char **argv) {
  21 #pragma omp target teams distribute simd { // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute simd' are ignored}}
  22   for (int i = 0; i < argc; ++i)
  23     foo();
  24 #pragma omp target teams distribute simd ( // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute simd' are ignored}}
  25   for (int i = 0; i < argc; ++i)
  26     foo();
  27 #pragma omp target teams distribute simd[ // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute simd' are ignored}}
  28   for (int i = 0; i < argc; ++i)
  29     foo();
  30 #pragma omp target teams distribute simd] // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute simd' are ignored}}
  31   for (int i = 0; i < argc; ++i)
  32     foo();
  33 #pragma omp target teams distribute simd) // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute simd' are ignored}}
  34   for (int i = 0; i < argc; ++i)
  35     foo();
  36 #pragma omp target teams distribute simd } // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute simd' are ignored}}
  37   for (int i = 0; i < argc; ++i)
  38     foo();
  39 #pragma omp target teams distribute simd
  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 simd' are ignored}}
  43 #pragma omp target teams distribute simd 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 simd
  50   for (int i = 0; i < argc; ++i)
  51     foo();
  52 #pragma omp target teams distribute simd
  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 simd
  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 // expected-error@+1 {{unexpected OpenMP clause 'default' in directive '#pragma omp target teams distribute simd'}}
  72 #pragma omp target teams distribute simd default(none)
  73   for (int i = 0; i < 10; ++i)
  74     ++argc;
  75
  76   goto L2; // expected-error {{use of undeclared label 'L2'}}
  77 #pragma omp target teams distribute simd
  78   for (int i = 0; i < argc; ++i)
  79   L2:
  80   foo();
  81 #pragma omp target teams distribute simd
  82   for (int i = 0; i < argc; ++i) {
  83     return 1; // expected-error {{cannot return from OpenMP region}}
  84   }
  85
  86   [[]] // expected-error {{an attribute list cannot appear here}}
  87 #pragma omp target teams distribute simd
  88       for (int n = 0; n < 100; ++n) {
  89   }
  90
  91 #pragma omp target teams distribute simd copyin(pvt) // expected-error {{unexpected OpenMP clause 'copyin' in directive '#pragma omp target teams distribute simd'}}
  92   for (int n = 0; n < 100; ++n) {}
  93
  94   return 0;
  95 }
  96
  97 void test_ordered() {
  98 #pragma omp target teams distribute simd ordered // expected-error {{unexpected OpenMP clause 'ordered' in directive '#pragma omp target teams distribute simd'}}
  99   for (int i = 0; i < 16; ++i)
 100     ;
 101 }
 102