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IJ40036: UNEXPECTED EXCEPTION THROWN WHEN USING OPTIMIZATION

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APAR status

  • Closed as program error.

Error description

  • Unexpected exception behaviour is seen with an application
compiled with xlclang++ and using optimization.  The issue does
not occur when no optimization is used.

The execution of the code appears to throw an exception, however
no exception is actually thrown - instead the execution proceeds
into the exception handling 'catch' block incorrectly.

Local fix

  • Do not use optimization.

Problem summary

  • PROBLEM DESCRIPTION:
Incorrect branch to exception handling code when no exception
has occurred.

USERS AFFECTED:
Some xlclang++ users with C++ exception handling code and using
optimization

Problem conclusion

  • The branch optimization causing the problem was corrected, and
the issue was resolved.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IJ40036
    • 

  • Reported component name
    XL C/C++ FOR AI
    • 

  • Reported component ID
    5725C7200
    • 

  • Reported release
    G10
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2022-05-16
    • 

  • Closed date
    2022-06-16
    • 

  • Last modified date
    2022-06-16
    • 





    

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

    • 

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

    • 



Fix information


    

  • Fixed component name
    XL C/C++ FOR AI
    • 

  • Fixed component ID
    5725C7200
    • 



Applicable component levels


    








      
              
                            

              

              [{"Line of Business":{"code":"LOB57","label":"Power"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGH3R","label":"XL C\/C++ for AIX"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"G10"}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            17 June 2022
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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