gcc/testsuite/g++.dg/pr82128.C

   1 // { dg-do compile }
   2 // { dg-options "-O3 -fno-tree-forwprop" }
   3
   4 class A {
   5       virtual unsigned long m_fn1() const;
   6         virtual int &m_fn2(unsigned long) const;
   7 };
   8 class C : A {
   9 public:
  10       int &m_fn2(unsigned long) const;
  11         unsigned long m_fn1() const;
  12 };
  13 class B {
  14       void m_fn3(const A &, const int &, const C &, int &) const;
  15 };
  16 void B::m_fn3(const A &, const int &, const C &, int &) const {
  17       C &a(a);
  18         for (long b = 0; a.m_fn1(); b++)
  19               a.m_fn2(0);
  20 }