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LI76817: INTERNAL INLINE FUNCTION TEMPLATE PARAM ERROR

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • An internal compiler error is occurring when inlining a function
    with a parameter that has a template constructor.  The function
    is called with a type different than the expected parameter
    (i.e. called with char[1] instead of StrRef).  Template matching
    should be able to deduce the char[1] type using the template
    constructor and convert the parameter to a StrRef.
    
    
         ====== TEST CASE ======
    struct StrRef
    {
            char *buffer;
    
            public:
                    template <int LEN>
                    StrRef(char (&buffer)[LEN]) : buffer(buffer) { }
    };
    
    void testtest(const StrRef& myStrRef) {}
    
    struct MyStr
    {
            char s1[1];
    };
    
    int main(int argc, char *argv[])
    {
            MyStr val;
    
            testtest(val.s1);
    
            return 0;
    }
    
    
    
    $ xlC -c -qinline test.cpp
      1500-004: (U) INTERNAL COMPILER ERROR while compiling main.
      Compilation ended.  Contact your Service Representative and
      provide the following information: Internal abort. For more
      information visit:
      http://www.ibm.com/support/docview.wss?uid=swg21110810
    $
    

Local fix

  • Do not compile with inlining enabled (-qnoinline)
    

Problem summary

  • PROBLEM DESCRIPTION:
    Internal compiler error in xlCcode after xlCentry inlines a
    function and produces incorrect intermediate code.
    
    USERS AFFECTED:
    User code containing an assignment operator which assigns an
    array of char to char pointer, and compiled with -Q and higher
    opt.
    

Problem conclusion

  • The issue was corrected.
    

Temporary fix

Comments

APAR Information

  • APAR number

    LI76817

  • Reported component name

    XL C/C++ FOR LI

  • Reported component ID

    5724X1400

  • Reported release

    B10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2012-05-24

  • Closed date

    2012-05-24

  • Last modified date

    2012-05-24

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

    IV16483

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

Fix information

  • Fixed component name

    XL C/C++ FOR LI

  • Fixed component ID

    5724X1400

Applicable component levels



Document information

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

Software version: B10

Reference #: LI76817

Modified date: 24 May 2012