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PI65362: 0C4 IN SCANBLOCK() WITH -O2

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APAR status

  • Closed as program error.

Error description

  • Compiling an application containing a variable initialization
with boolean conditional evaluation with -O2 is encountering an
internal compiler 0C4 error.



   === EXAMPLE CODE ===

Note:  not a standalone test case

unsigned long val d =
      !( ((1L<<(value1)) & (number)) != 0L ) ||
      !( ((1L<<(value2)) & (number)) != 0L );


$ xlC -c -O2 test.cpp
CEE3204S The system detected a protection exception (System
Completion Code=0C4).
         From entry point scanBlock(int,stateT&) at statement
345 at compile unit offset +000002F4 at entry offset
         +000002F4 at address 27B7437C.
FSUM3224 c++: Fatal error in
ccndrvr: signal 9 received.
$

Local fix

  • Do not use optimization.

Problem summary

  • ****************************************************************
* USERS AFFECTED: USERS OF Z/OS XL C/C++  V2R1.                *
****************************************************************
* PROBLEM DESCRIPTION: COMPILER ICE WHEN MASK APPEARS AS AN    *
*                      IV RATHER THAN A SYMBOLIC REGISTER.     *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
INCORRECT CODE MAY BE GENERATED BY TOBEY WHEN OPTIMIZING
CAUSING AN ICE.

Problem conclusion

  • APPLY PROVIDED SERVICE.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PI65362
    • 

  • Reported component name
    C/C++ FOR MVS
    • 

  • Reported component ID
    56551210A
    • 

  • Reported release
    790
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2016-07-05
    • 

  • Closed date
    2016-07-06
    • 

  • Last modified date
    2016-10-03
    • 





    

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

    
PI62156
    

    • 

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

    • 



Modules/Macros


    

  •    CCNETBY

    



Fix information


    

  • Fixed component name
    C/C++ FOR MVS
    • 

  • Fixed component ID
    56551210A
    • 



Applicable component levels


    

  • R790  PSY  UI39212
       UP16/09/02  P  F609
    • 



Fix is available


    

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Document Information


            

            


                        

            Modified date:
            

            22 August 2024
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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