clang/test/OpenMP/parallel_shared_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 extern S1 a;
  14 class S2 {
  15   mutable int a;
  16 public:
  17   S2():a(0) { }
  18   S2(S2 &s2):a(s2.a) { }
  19 };
  20 const S2 b;
  21 const S2 ba[5];
  22 class S3 {
  23   int a;
  24 public:
  25   S3():a(0) { }
  26   S3(S3 &s3):a(s3.a) { }
  27 };
  28 const S3 c;
  29 const S3 ca[5];
  30 extern const int f;
  31 class S4 {
  32   int a;
  33   S4();
  34   S4(const S4 &s4);
  35 public:
  36   S4(int v):a(v) { }
  37 };
  38 class S5 {
  39   int a;
  40   S5():a(0) {}
  41   S5(const S5 &s5):a(s5.a) { }
  42 public:
  43   S5(int v):a(v) { }
  44 };
  45
  46 S3 h;
  47 #pragma omp threadprivate(h) // expected-note {{defined as threadprivate or thread local}}
  48
  49 namespace A {
  50 double x;
  51 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
  52 }
  53 namespace B {
  54 using A::x;
  55 }
  56
  57 int main(int argc, char **argv) {
  58   const int d = 5;
  59   const int da[5] = { 0 };
  60   S4 e(4);
  61   S5 g(5);
  62   int i, k;
  63   int &j = i;
  64   #pragma omp parallel shared // expected-error {{expected '(' after 'shared'}}
  65   #pragma omp parallel shared ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  66   #pragma omp parallel shared () // expected-error {{expected expression}}
  67   #pragma omp parallel shared (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
  68   #pragma omp parallel shared (argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  69   #pragma omp parallel shared (argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
  70   #pragma omp parallel shared (argc)
  71   #pragma omp parallel shared (S1) // expected-error {{'S1' does not refer to a value}}
  72   #pragma omp parallel shared (a, b, c, d, f, k)
  73   #pragma omp parallel shared (argv[1]) // expected-error {{expected variable name}}
  74   #pragma omp parallel shared(ba)
  75   #pragma omp parallel shared(ca)
  76   #pragma omp parallel shared(da)
  77   #pragma omp parallel shared(e, g)
  78   #pragma omp parallel shared(h, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be shared}}
  79   #pragma omp parallel private(i), shared(i) // expected-error {{private variable cannot be shared}} expected-note {{defined as private}}
  80   foo();
  81   #pragma omp parallel firstprivate(i), shared(i) // expected-error {{firstprivate variable cannot be shared}} expected-note {{defined as firstprivate}}
  82   foo();
  83   #pragma omp parallel private(i)
  84   #pragma omp parallel shared(i)
  85   #pragma omp parallel shared(j)
  86   foo();
  87   #pragma omp parallel firstprivate(i)
  88   #pragma omp parallel shared(i)
  89   #pragma omp parallel shared(j)
  90   foo();
  91
  92   return 0;
  93 }