LI77648: Program abends compiled WITH -QPDF=LEVEL=2

XL C/C++ for Linux Fix Pack 8 (October 2015 Update) for 12.1
XL C/C++ for Linux Fix Pack 4 (October 2013 Update) for 12.1
XL C/C++ for Linux Fix Pack 5 (December 2013 Update) for 12.1
XL C/C++ for Linux Fix Pack 6 (February 2014 Update) for 12.1
XL C/C++ for Linux Fix Pack 7 (May 2014 Update) for 12.1

APAR status

• Closed as program error.

Error description

• A program compiled with -qpdf=level=2 crashes
  at runtime.
  An error is identified in the compiler high level optimizer
  component.
  

Local fix

• Change the source code
  
  From:
  
          bool node_has_local_access = false;
          for (size_t k=0; !node_has_local_access &&
  k<nodeName.size();
  k++)
          {
            if (pNode->node_.UnodeName().isEqualCI(nodeName[k]) ||
                pNode->node_.UfastName().isEqualCI(nodeName[k]))
              node_has_local_access = true;
          }
  
  To
  
          bool node_has_local_access = false;
          for (size_t k=0; !node_has_local_access &&
  k<nodeName.size();
  k++)
          {
            if (pNode->node_.UnodeName().isEqualCI(nodeName[k]))
              node_has_local_access = true;
  
            if (pNode->node_.UfastName().isEqualCI(nodeName[k]))
              node_has_local_access = true;
          }
  

Problem summary

• PROBLEM DESCRIPTION: Loop break incorrectly changes code flow
  exposed by -qpdf=level=2.
  
  USERS AFFECTED: C++ Program that compiles with -qpdf=level=2
  with the following loop form.
  
  bool condition = false;
  for (i=0; !condition && i<n; i++) {
  
  if ( call1() || call2() ) {
  condition=true;
  }
  }
  
  where both call1 and call2 return C++ objects by value.
  

Problem conclusion

• The transformation causing the problem has been fixed.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  IV38509

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  XL C/C++ FOR LI

• Fixed component ID

  5725C7300

Applicable component levels

• RC10 PSN IV38509

     UP06/09/13