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Date: Wed, 21 May 2003 03:06:00 -0000
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From: Andrew Pinski <pinskia@physics.uc.edu>
Subject: Re: c++/10893: wrong class mapping for empty bases
Reply-To: Andrew Pinski <pinskia@physics.uc.edu>
X-SW-Source: 2003-05/txt/msg02227.txt.bz2
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The following reply was made to PR c++/10893; it has been noted by GNATS.

From: Andrew Pinski <pinskia@physics.uc.edu>
To: yanliu@ca.ibm.com
Cc: Andrew Pinski <pinskia@physics.uc.edu>, gcc-gnats@gcc.gnu.org
Subject: Re: c++/10893: wrong class mapping for empty bases
Date: Tue, 20 May 2003 23:01:08 -0400

 This has been fixed in 3.4 (I think 3.3 also) but only if you say that 
 you want the lasted c++ abi.
 
 3.4:
 Class D1
     size=8 align=4
     base size=8 base align=4
 D1 (0x103f240) 0
      vptridx=0 vptr=((&D1::_ZTV2D1) + 12)
    D (0x103f280) 0 nearly-empty
        primary-for D1 (0x103f240)
        subvttidx=4
      E1 (0x103f2c0) 4 empty virtual
          vbaseoffset=-12
        E (0x103f300) 4 empty
      E2 (0x103f340) 0 empty
        E (0x103f380) 0 empty
 
 
 3.4 with -fabi-version=0 aka the latest abi:
 Class D1
     size=12 align=4
     base size=8 base align=4
 D1 (0x103e240) 0
      vptridx=0 vptr=((&D1::_ZTV2D1) + 12)
    D (0x103e280) 0 nearly-empty
        primary-for D1 (0x103e240)
        subvttidx=4
      E1 (0x103e2c0) 8 empty virtual
          vbaseoffset=-12
        E (0x103e300) 12 empty
      E2 (0x103e340) 0 empty
        E (0x103e380) 0 empty
 
 
 Thanks,
 Andrew Pinski