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LI78436: INLINE FUNCTION NOT OPTIMIZED FOR RETURN TYPE

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • After inlining a function, the compiler is not taking advantage
    of the known return type from the inline function.  This can add
    unnecessary code when dealing with different data types.
    

Local fix

Problem summary

  • PROBLEM DESCRIPTION:
    The return type from certain inlined functions (for example,
    popcnt8, popcnt4, cntlz8, cntlz4) are restricted to 'int' but
    the compiler does not take advantage of this.
    
    USERS AFFECTED:
    Affects only performance when using inlined functions that can
    be restricted to int.  Functionality is not affected.
    

Problem conclusion

  • Change made to allow the compiler to optimize without the (int)
    cast.
    

Temporary fix

Comments

APAR Information

  • APAR number

    LI78436

  • Reported component name

    XL C/C++ FOR LI

  • Reported component ID

    5725C7300

  • Reported release

    D10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2015-02-25

  • Closed date

    2015-02-25

  • Last modified date

    2015-02-25

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

    IV64752

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

Fix information

  • Fixed component name

    XL C/C++ FOR LI

  • Fixed component ID

    5725C7300

Applicable component levels

  • RD10 PSY

       UP



Document information

More support for: XL C/C++ for Linux
Compiler

Software version: 13.1

Reference #: LI78436

Modified date: 25 February 2015