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// { dg-do link }

// { dg-options "-O2" }

class Foo {

public:

  // No out-of-class definition is provided for these class members.

  // That's technically a violation of the standard, but no diagnostic

  // is required, and, as a QOI issue, we should optimize away all

  // references.

  static const int erf = 0;

  static const int foo = 1;

};

int one()

{

  return Foo::foo;

}

int two()

{

  return Foo::foo + Foo::erf;

}

int three(int x)

{

  return x ? Foo::erf : Foo::foo;

}

int i;

int main ()

{

  one ();

  two ();

  three (i);

}