IV23860: INCORRECT OUTPUT WITH IPA

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • When compiling a large application with -qipa, the resulting
    binary produces incorrect output at runtime causing test case
    failures.
    
    The following is the compile line:
    xlC_r -D_AIX51 -D_LARGE_FILES -U__unix -q64 -qtbtable=full
    -qhalt=e -qalias=noansi -qutf -+ -qlibansi -qstrict -qinlglue
    -qmaxmem=-1 -qarch=ppc -qspill=2560 -c test.cpp  -qipa
    

Local fix

  • n/a
    

Problem summary

  • USERS AFFECTED:
    Users that compile with -q64 and optimization may be affected by
    this issue.
    
    PROBLEM DESCRIPTION:
    There is a bug in the compiler optimization of some conditional
    expressions with -q64.
    

Problem conclusion

  • The compiler issue has been fixed.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV23860

  • Reported component name

    XL C/C++ FOR AI

  • Reported component ID

    5725C7200

  • Reported release

    C10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-06-27

  • Closed date

    2012-11-27

  • Last modified date

    2012-11-27

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

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

    LI76953

Fix information

  • Fixed component name

    XL C FOR AIX

  • Fixed component ID

    5725C7100

Applicable component levels

  • RC10 PSY

       UP



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Document information


More support for:

XL C for AIX
Compiler

Software version:

12.1

Reference #:

IV23860

Modified date:

2012-11-27

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