IBM Support

LI75755: INCORRECT INSTRUCTION ORDER WITH -O3

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • When compiling an application making use of pointers to structs
    at -O3, generated code is in the wrong order.
    

Local fix

  • Compile with optimization disabled:  -O0
    

Problem summary

  • PROBLEM DESCRIPTION:
    An ignored address of an aggregate is producing wrong results
    when using optimization.
    
    USERS AFFECTED:
    Users of pointers to structs at high optimization.
    

Problem conclusion

  • The issue was corrected.
    

Temporary fix

Comments

APAR Information

  • APAR number

    LI75755

  • Reported component name

    XL C/C++ FOR LI

  • Reported component ID

    5724X1400

  • Reported release

    B10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2010-11-24

  • Closed date

    2010-11-24

  • Last modified date

    2010-11-24

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

    IZ83609

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

Fix information

  • Fixed component name

    XL C/C++ FOR LI

  • Fixed component ID

    5724X1400

Applicable component levels

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSXVZZ","label":"XL C\/C++ for Linux"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"B10","Line of Business":{"code":"LOB57","label":"Power"}}]

Document Information

Modified date:
15 October 2021