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      1 // RUN: %clang_cc1 -fms-extensions -fsyntax-only -verify %s
      2 // MSVC produces similar diagnostics.
      3 
      4 __declspec(selectany) void foo() { } // expected-error{{'selectany' can only be applied to data items with external linkage}}
      5 
      6 __declspec(selectany) int x1 = 1;
      7 
      8 const __declspec(selectany) int x2 = 2; // expected-error{{'selectany' can only be applied to data items with external linkage}}
      9 
     10 extern const __declspec(selectany) int x3 = 3;
     11 
     12 extern const int x4;
     13 const __declspec(selectany) int x4 = 4;
     14 
     15 // MSDN says this is incorrect, but MSVC doesn't diagnose it.
     16 extern __declspec(selectany) int x5;
     17 
     18 static __declspec(selectany) int x6 = 2; // expected-error{{'selectany' can only be applied to data items with external linkage}}
     19 
     20 // FIXME: MSVC accepts this and makes x7 externally visible and comdat, but keep
     21 // it as internal and not weak/linkonce.
     22 static int x7; // expected-note{{previous definition}}
     23 extern __declspec(selectany) int x7;  // expected-warning{{attribute declaration must precede definition}}
     24 
     25 int asdf() { return x7; }
     26 
     27 class X {
     28  public:
     29   X(int i) { i++; };
     30   int i;
     31 };
     32 
     33 __declspec(selectany) X x(1);
     34