clang/test/OpenMP/parallel_sections_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
  17 public:
  18   S2() : a(0) {}
  19   S2(S2 &s2) : a(s2.a) {}
  20 };
  21 const S2 b;
  22 const S2 ba[5];
  23 class S3 {
  24   int a;
  25
  26 public:
  27   S3() : a(0) {}
  28   S3(S3 &s3) : a(s3.a) {}
  29 };
  30 const S3 c;
  31 const S3 ca[5];
  32 extern const int f;
  33 class S4 {
  34   int a;
  35   S4();
  36   S4(const S4 &s4);
  37
  38 public:
  39   S4(int v) : a(v) {}
  40 };
  41 class S5 {
  42   int a;
  43   S5() : a(0) {}
  44   S5(const S5 &s5) : a(s5.a) {}
  45
  46 public:
  47   S5(int v) : a(v) {}
  48 };
  49
  50 S3 h;
  51 #pragma omp threadprivate(h) // expected-note {{defined as threadprivate or thread local}}
  52
  53 namespace A {
  54 double x;
  55 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
  56 }
  57 namespace B {
  58 using A::x;
  59 }
  60
  61 int main(int argc, char **argv) {
  62   const int d = 5;
  63   const int da[5] = {0};
  64   S4 e(4);
  65   S5 g(5);
  66   int i, k;
  67   int &j = i;
  68 #pragma omp parallel sections shared // expected-error {{expected '(' after 'shared'}}
  69   { foo(); }
  70 #pragma omp parallel sections shared( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  71   { foo(); }
  72 #pragma omp parallel sections shared() // expected-error {{expected expression}}
  73   { foo(); }
  74 #pragma omp parallel sections shared(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
  75   { foo(); }
  76 #pragma omp parallel sections shared(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  77   { foo(); }
  78 #pragma omp parallel sections shared(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
  79   { foo(); }
  80 #pragma omp parallel sections shared(argc)
  81   { foo(); }
  82 #pragma omp parallel sections shared(S1) // expected-error {{'S1' does not refer to a value}}
  83   { foo(); }
  84 #pragma omp parallel sections shared(a, b, c, d, f, k)
  85   { foo(); }
  86 #pragma omp parallel sections shared(argv[1]) // expected-error {{expected variable name}}
  87   { foo(); }
  88 #pragma omp parallel sections shared(ba)
  89   { foo(); }
  90 #pragma omp parallel sections shared(ca)
  91   { foo(); }
  92 #pragma omp parallel sections shared(da)
  93   { foo(); }
  94 #pragma omp parallel sections shared(e, g)
  95   { foo(); }
  96 #pragma omp parallel sections shared(h, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be shared}}
  97   { foo(); }
  98 #pragma omp parallel sections private(i), shared(i) // expected-error {{private variable cannot be shared}} expected-note {{defined as private}}
  99   { foo(); }
 100 #pragma omp parallel sections firstprivate(i), shared(i) // expected-error {{firstprivate variable cannot be shared}} expected-note {{defined as firstprivate}}
 101   { foo(); }
 102 #pragma omp parallel sections private(i)
 103   {
 104 #pragma omp parallel sections shared(i)
 105     {
 106 #pragma omp parallel sections shared(j)
 107       { foo(); }
 108     }
 109   }
 110 #pragma omp parallel sections firstprivate(i)
 111   {
 112 #pragma omp parallel sections shared(i)
 113     {
 114 #pragma omp parallel sections shared(j)
 115       { foo(); }
 116     }
 117   }
 118
 119   return 0;
 120 }