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LI77125: COMPILER DOES NOT DETECT __ROTATEL4 PATTERN

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • XLC compiler does not detect __rotatel4 pattern.
    Other compilers detect rotate code automatically.
    

Local fix

  • N/A
    

Problem summary

  • USERS AFFECTED:
    Users that compile with -q64 and optimization and have a
    specific shift pattern that could be a rotate may be affected by
    this issue.
    
    PROBLEM DESCRIPTION:
    The optimizer failed to detect opportunity to use a rotate
    instruction in 64-bit mode.
    

Problem conclusion

  • The issue has been fixed.
    

Temporary fix

Comments

APAR Information

  • APAR number

    LI77125

  • Reported component name

    XL C/C++ FOR LI

  • Reported component ID

    5725C7300

  • Reported release

    C10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-12-17

  • Closed date

    2012-12-17

  • Last modified date

    2012-12-17

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

    IV30107

  • 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



Document information

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

Software version: 12.1

Reference #: LI77125

Modified date: 17 December 2012