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class.c (dfs_ctor_vtable_bases_queue_p): Always walk into the shared virtual base, so preserving inheritance graph order.

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cp:
	* class.c (dfs_ctor_vtable_bases_queue_p): Always walk into
	the shared virtual base, so preserving inheritance graph order.
testsuite:
	* g++.dg/abi/vbase8-22.C: New test.

From-SVN: r44506
This commit is contained in:
Nathan Sidwell 2001-07-31 08:49:00 +00:00 committed by Nathan Sidwell
parent f70961a0e3
commit b7ad2f8bac
4 changed files with 95 additions and 11 deletions
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5
gcc/cp/ChangeLog
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@ -1,3 +1,8 @@
2001-07-31 Nathan Sidwell <nathan@codesourcery.com>
* class.c (dfs_ctor_vtable_bases_queue_p): Always walk into
the shared virtual base, so preserving inheritance graph order.
2001-07-30 Andreas Jaeger <aj@suse.de>
* decl2.c: Remove unused var global_temp_name_counter.

17
gcc/cp/class.c
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@ -7195,24 +7195,19 @@ dfs_build_secondary_vptr_vtt_inits (binfo, data)
}
/* dfs_walk_real predicate for building vtables. DATA is a TREE_LIST,
TREE_UNSIGNED indicates that a constructor vtable is being built.
TREE_USED indicates whether marked or unmarked bases should be walked.
TREE_PURPOSE is the TREE_TYPE that dominates the hierarchy. */
VTT_MARKED_BINFO_P indicates whether marked or unmarked bases
should be walked. TREE_PURPOSE is the TREE_TYPE that dominates the
hierarchy. */
static tree
dfs_ctor_vtable_bases_queue_p (binfo, data)
tree binfo;
void *data;
{
if (TREE_VIA_VIRTUAL (binfo) && !BINFO_PRIMARY_P (binfo))
{
tree type = TREE_PURPOSE ((tree) data);
if (TREE_VIA_VIRTUAL (binfo))
/* Get the shared version. */
binfo = binfo_for_vbase (BINFO_TYPE (binfo), TREE_PURPOSE ((tree) data));
/* This is a non-primary virtual base, get the shared version. */
binfo = binfo_for_vbase (BINFO_TYPE (binfo), type);
if (VTT_TOP_LEVEL_P ((tree) data) && BINFO_PRIMARY_P (binfo))
return NULL_TREE;
}
if (!BINFO_MARKED (binfo) == VTT_MARKED_BINFO_P ((tree) data))
return NULL_TREE;
return binfo;

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2001-07-31 Nathan Sidwell <nathan@codesourcery.com>
* g++.dg/abi/vbase8-22.C: New test.
2001-07-31 Neil Booth <neil@cat.daikokuya.demon.co.uk>
* gcc.dg/cpp/macro8.c: New test.

80
gcc/testsuite/g++.dg/abi/vbase8-22.C Normal file
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@ -0,0 +1,80 @@
// { dg-options -w }
// { dg-do run }
// Copyright (C) 2001 Free Software Foundation, Inc.
// Contributed by Nathan Sidwell 27 Jul 2001 <nathan@codesourcery.com>
// Origin stefan@space.twc.de
// Bug 3145 case 22. Horribly complicated class hierarchy
class C0
{};
class C1
: public C0
{};
class C2
: public C1
, virtual public C0
{};
class C3
: virtual public C0
, virtual public C2
, virtual public C1
{};
class C4
: virtual public C2
, public C1
, virtual public C3
, public C0
{};
class C5
: virtual public C0
, virtual public C4
, public C1
, virtual public C2
, virtual public C3
{};
class C6
: public C0
, virtual public C1
, public C5
, public C2
, virtual public C3
, virtual public C4
{};
class C7
: virtual public C1
, public C5
, virtual public C6
, virtual public C4
, virtual public C3
, virtual public C0
{};
class C8
: virtual public C6
, virtual public C1
, virtual public C2
, public C3
, virtual public C4
{};
class C9
: public C4
, virtual public C2
, virtual public C8
, public C3
, public C1
, public C6
, public C5
{};
main() {
C0 c0;
C1 c1;
C2 c2;
C3 c3;
C4 c4;
C5 c5;
C6 c6;
C7 c7;
C8 c8;
C9 c9;
}