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LI75522: PARALLEL STORE AND LOAD SUPPORT FLOAT _COMPLEX

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • The problem affects C/C++ users on BG/P, who would like to use
    the float _Complex data type for double hummer support in
    parallel load and store functions.
    

Local fix

  • N/A
    

Problem summary

  • problem with __stfps intrinsic function.  Intrinsic only takes
    a float _Complex* parameter
    

Problem conclusion

  • Customer needs a version of these intrinsics that will take
    float _Complex data.  Otherwise, they are casting the values to
    float*.  And to C these are incompatible, resulting in them not
    being aliased, resulting in a correctness problem at -O2.
    

Temporary fix

Comments

APAR Information

  • APAR number

    LI75522

  • Reported component name

    XL C/C++ AE BG/

  • Reported component ID

    5799HJE00

  • Reported release

    900

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-06-08

  • Closed date

    2010-07-28

  • Last modified date

    2010-07-28

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

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

    LI75706

Fix information

  • Fixed component name

    XL C/C++ AE BG/

  • Fixed component ID

    5799HJE00

Applicable component levels

  • R900 PSY

       UP



Document information

More support for: XL C/C++
Compiler

Software version: 9.0

Reference #: LI75522

Modified date: 28 July 2010


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