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view gcc/testsuite/g++.dg/warn/Wunused-label-3.C @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents
children 84e7813d76e9
line wrap: on
line source

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

extern void f9();

template<int i>
void
f1()
{
  if (i)
    return;

 l1: f9();				// { dg-warning "not used" }
 l3: ; f9();				// { dg-warning "not used" }
 l4: __attribute__ ((unused)) ; f9();
}

template
void f1<0>();

template<int i>
void
f2()
{
  if (i)
    return;

 l1: f9();				// { dg-warning "not used" }
 l3: ; f9();				// { dg-warning "not used" }
 l4: __attribute__ ((unused)) ; f9();
}

template
void f2<1>();

template<int i>
void
f3()
{
  void* lab;
 l1: f9();
 l2: __attribute__ ((unused)) ; f9();
  lab = i ? &&l1 : &&l2;
  goto *lab;
}

template
void f3<0>();

template
void f3<1>();