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LI76902: COMPILER ABEND WITH -QIPA

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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 test case with -qipa=level=1, the ipa64
    component of the compiler abends.
    
    ===== COMPILE COMMAND:
    xlC_r -c -O2 -q64 -qstrict -qipa=level=1 -qrtti=all -Q -g
    -qlibansi -qro -qroconst -qcheck=all -qtls test.cpp
    
    ===== ACTUAL OUTPUT:
    $xlC_r -c -O2 -q64 -qstrict -qipa=level=1 -qrtti=all -Q -g
    -qlibansi -qro -qroconst -qcheck=all -qtls test.cpp
    
    Calling signal handler...
    1586-494 (U) INTERNAL COMPILER ERROR: Signal 11.
    /usr/vacpp/bin/.orig/xlC_r: 1501-230 (S) Internal compiler
    error; please contact your Service Representative. For more
    information visit:
    http://www.ibm.com/support/docview.wss?uid=swg21110810
    $
    

Local fix

  • As a temporary workaround, avoid using -g with -qipa=level=1
    

Problem summary

  • USERS AFFECTED:
    User using IPA to compile large programs may be affected by
    this issue.
    
    PROBLEM DESCRIPTION:
    The compiler produces an internal compiler error when encoding
    the block number for TEST instruction.
    The problems occurs when IPA tries to encode a big basic block
    number for TEST instruction.
    

Problem conclusion

  • This issue has been fixed.
    

Temporary fix

Comments

APAR Information

  • APAR number

    LI76902

  • Reported component name

    XL C/C++ RHEL52

  • Reported component ID

    5724U8310

  • Reported release

    A10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-07-16

  • Closed date

    2012-07-16

  • Last modified date

    2012-07-16

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

    IV21132

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

Fix information

  • Fixed component name

    XL C/C++ RHEL52

  • Fixed component ID

    5724U8310

Applicable component levels

  • RA10 PSY

       UP



Document information

More support for: XL C/C++

Software version: A.1

Reference #: LI76902

Modified date: 16 July 2012


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