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IJ36817: COMPILER NOT GENERATING CODE FOR IF STATEMENT

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APAR status

  • Closed as program error.

Error description

  • When compiling with IPA, the compiler optimizer incorrectly
optimized away some if statements causing incorrect output at
runtime.

Local fix

  • N/A

Problem summary

  • USERS AFFECTED:
Users compiling with -O2 might be affected by this issue.

PROBLEM DESCRIPTION:
The compiler optimizer was eliminating some basic blocks because
of a wrong value numbering optimization in the backend. This
resulted in the runtime error.

Problem conclusion

  • The compiler optimizer has been fixed.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IJ36817
    • 

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

  • Reported component ID
    5725C7200
    • 

  • Reported release
    D10
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2021-12-21
    • 

  • Closed date
    2021-12-21
    • 

  • Last modified date
    2021-12-21
    • 





    

  • 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":"13.1"}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            22 December 2021
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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