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re PR c++/23984 (second operand of PLUS_EXPR is NULL (in constructor)) 

cp:
	PR c++/23984
	* class.c (build_base_path): The vtable is always the first thing
	in the vtt.
testsuite:
	PR c++/23984
	* g++.dg/init/ctor7.C: New.

From-SVN: r105396
This commit is contained in:
Nathan Sidwell 2005-10-14 08:38:59 +00:00 committed by Nathan Sidwell
parent 9da32d6309
commit 2acb1af9aa
4 changed files with 66 additions and 6 deletions
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6
gcc/cp/ChangeLog
View File

@ -1,3 +1,9 @@
2005-10-13 Nathan Sidwell <nathan@codesourcery.com>
PR c++/23984
* class.c (build_base_path): The vtable is always the first thing
in the vtt.
2005-10-13 Mark Mitchell <mark@codesourcery.com>
PR c++/20721

10
gcc/cp/class.c
View File

@ -325,16 +325,14 @@ build_base_path (enum tree_code code,
if (fixed_type_p < 0 && in_base_initializer)
{
/* In a base member initializer, we cannot rely on
the vtable being set up. We have to use the vtt_parm. */
tree derived = BINFO_INHERITANCE_CHAIN (v_binfo);
/* In a base member initializer, we cannot rely on the
vtable being set up. We have to indirect via the
vtt_parm. */
tree t;
t = TREE_TYPE (TYPE_VFIELD (BINFO_TYPE (derived)));
t = TREE_TYPE (TYPE_VFIELD (current_class_type));
t = build_pointer_type (t);
v_offset = convert (t, current_vtt_parm);
v_offset = build2 (PLUS_EXPR, t, v_offset,
BINFO_VPTR_INDEX (derived));
v_offset = build_indirect_ref (v_offset, NULL);
}
else

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2005-10-14 Nathan Sidwell <nathan@codesourcery.com>
PR c++/23984
* g++.dg/init/ctor7.C: New.
2005-10-13 David Edelsohn <edelsohn@gnu.org>
PR c++/23730

51
gcc/testsuite/g++.dg/init/ctor7.C Normal file
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@ -0,0 +1,51 @@
// { dg-do run }
// Copyright (C) 2005 Free Software Foundation, Inc.
// Contributed by Nathan Sidwell 13 Oct 2005 <nathan@codesourcery.com>
// PR 23984:ICE
// Origin: Andrew Pinski pinskia@gcc.gnu.org
struct B
{
virtual void Foo ();
};
void B::Foo ()
{
}
struct D : virtual B
{
};
struct E
{
B *ptr;
E (B *);
};
static B *ptr;
E::E (B *ptr_)
:ptr (ptr_)
{
}
struct G : D, E
{
G ();
};
G::G ()
: E (this)
{
}
int main ()
{
G object;
return object.ptr != &object;
}