gcc/testsuite/g++.dg/tree-ssa/pr24231-3.C

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   3 /* PRE testcase for PR 24231, problem with PRE coalescing abnormal phis.  */
   4 struct MemoryManager {
   5       virtual void deallocate() = 0;
   6 };
   7 struct XalanVector {
   8       ~XalanVector()   {
   9               m_memoryManager->deallocate();
  10                 }
  11         void swap(XalanVector& theOther)   {
  12                 MemoryManager* const theTempManager = m_memoryManager;
  13                     m_memoryManager = theOther.m_memoryManager;
  14                         theOther.m_memoryManager = theTempManager;
  15                             theOther.m_size = 0;
  16                               }
  17           void push_back()   {
  18                   XalanVector theTemp(*this);
  19                       theTemp.push_back();
  20                           swap(theTemp);
  21                             }
  22             MemoryManager* m_memoryManager;
  23               int m_size;
  24 };
  25 void f(void) {
  26       XalanVector tempVector;
  27         tempVector.push_back();
  28 }