From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jim Blandy <jimb@zwingli.cygnus.com>
To: Daniel Berlin <dan@cgsoftware.com>
Cc: gdb@sources.redhat.com
Subject: Funky code in gnuv2_virtual_fn_field
Date: Sun, 20 May 2001 13:06:00 -0000
Message-id: <20010520160159.3484E5E9DB@zwingli.cygnus.com>
X-SW-Source: 2001-05/msg00305.html

I'm looking at lines 112--118 in gnu-v2-abi.c:

  if (TYPE_TARGET_TYPE (context) != type1)
    {
      value_ptr tmp = value_cast (context, value_addr (arg1));
      VALUE_POINTED_TO_OFFSET (tmp) = 0;
      arg1 = value_ind (tmp);
      type1 = check_typedef (VALUE_TYPE (arg1));
    }

This looks fishy to me.  If we smash the POINTED_TO_OFFSET without
smashing the ENCLOSING_TYPE in a corresponding manner, and then we
indirect through that pointer, don't we get a value whose
ENCLOSING_TYPE is set, but whose address points to the embedded
object, and not the enclosing object?