IBM Support

IV26366: UNEXPECTED BEHAVIOUR IN COMPILED CODE

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: Unexpected results while running a compiled
method. (Unexpected exceptions, unexpected values, gpf etc.)
.
Stack Trace: N/A
.

Local fix

  • -Xjit:disableEscapeAnalysis,disableLocalDSE

Problem summary

  • A bug in the optimizations "escape analysis" and "dead store
elimination" leave internal compilation tracking information in
a stale state which leads to invalid code being generated.

Problem conclusion

  • This defect will be fixed in:
6.0.0 SR10
6.0.1 SR2
7.0.0 SR1
5.0.0 SR14
.
The optimizations have been corrected such that the stale
compilation info is updated appropriately.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV26366
    • 

  • Reported component name
    JAVA 5 JIT
    • 

  • Reported component ID
    620500124
    • 

  • Reported release
    500
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2012-08-16
    • 

  • Closed date
    2012-08-16
    • 

  • Last modified date
    2012-09-06
    • 





    

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

    
IV19960
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    JAVA 5 JIT
    • 

  • Fixed component ID
    620500124
    • 



Applicable component levels


    

  • R500  PSN
       UP
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSC9HBA","label":"Just In Time (JIT) Compiler"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.0","Edition":"","Line of Business":{"code":"","label":""}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            06 September 2012
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
Page Feedback