IBM Support

IV78555: LONG COMPILE TIMES WITH -QDBGFMT=DWARF

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Compiling large applications with DWARF debug information using
    the -qdbgfmt=dwarf option is taking significantly longer time
    than when compiling the same applications with stabstring debug
    information.  Compiling may appear to hang as well.
    

Local fix

  • Use stabstring debug information.
    

Problem summary

  • PROBLEM DESCRIPTION:
    Very long compile time, appearing as hanging.
    
    USERS AFFECTED:
    DWARF users with large source code.
    

Problem conclusion

  • Usage of several internal compiler data structures are slowing
    down the compile time.  A fix was implemented and compile time
    is now faster.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV78555

  • 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 / Xsystem

  • Submitted date

    2015-11-05

  • Closed date

    2015-11-05

  • Last modified date

    2015-11-05

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

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

    IV81776

Fix information

  • Fixed component name

    XL C FOR AIX

  • Fixed component ID

    5725C7100

Applicable component levels

  • RC10 PSY

       UP



Document information

More support for: XL C for AIX
Compiler

Software version: 12.1

Reference #: IV78555

Modified date: 05 November 2015