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// { dg-do compile }

// { dg-options "-Wunused-label" }

extern void f9();

void

f1()

{

 l1: f9();                              // { dg-warning "not used" }

 l3: ; f9();                            // { dg-warning "not used" }

 l4: __attribute__ ((unused)) ; f9();

}

void

f2()

{

 label: __attribute ((unused)) ;

}

void

f3()

{

  // The next line would be OK in C but is a syntax error in C++.

 l2: __attribute__ ((unused)) f9();     // { dg-error "expected" }

                // We still get an unused label warning--this is

                // optional and can be removed if it ever changes.

                // { dg-warning "not used" "expected" { target *-*-* } 24 }

}