gcc/testsuite/g++.dg/tree-ssa/pr22488.C

   1 // PR tree-optimization/22488
   2 // This testcase is really a C++ FE bug in represnting virtual inheritance
   3 // It gives the appearance to the middle end that the fields exist twice
   4 // which resulted in a very confused structure analyzer
   5 // { dg-do compile }
   6 // { dg-options "-O" }
   7 struct X
   8 {
   9     int i0, i1;
  10       char c;
  11 };
  12
  13 struct A
  14 {
  15     int i;
  16       char c0, c1;
  17
  18         virtual ~A();
  19 };
  20
  21 struct B : virtual A {};
  22
  23 struct C : B
  24 {
  25     X x;
  26
  27       void bar(X y) { x = y; }
  28 };
  29
  30 void foo()
  31 {
  32     C().bar(X());
  33 }