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From: "hubicka at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug lto/65475] [5 Regression] ICE in odr_vtable_hasher::equal (Segmentation fault)
Date: Fri, 20 Mar 2015 08:29:00 -0000 [thread overview]
Message-ID: <bug-65475-4-ZQwvCbE8Ql@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-65475-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65475
--- Comment #3 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
The following should help:
Index: ipa-devirt.c
===================================================================
--- ipa-devirt.c (revision 221528)
+++ ipa-devirt.c (working copy)
@@ -1412,9 +1412,18 @@ add_type_duplicate (odr_type val, tree t
if (!val->types_set)
val->types_set = new hash_set<tree>;
+ /* Chose polymorphic type as leader (this happens only in case of ODR
+ violations. */
+ if ((TREE_CODE (type) == RECORD_TYPE && TYPE_BINFO (type)
+ && polymorphic_type_binfo_p (TYPE_BINFO (type)))
+ && (TREE_CODE (val->type) != RECORD_TYPE || !TYPE_BINFO (val->type)
+ || !polymorphic_type_binfo_p (TYPE_BINFO (val->type))))
+ {
+ prevail = true;
+ build_bases = true;
+ }
/* Always prefer complete type to be the leader. */
-
- if (!COMPLETE_TYPE_P (val->type) && COMPLETE_TYPE_P (type))
+ else if (!COMPLETE_TYPE_P (val->type) && COMPLETE_TYPE_P (type))
{
prevail = true;
build_bases = TYPE_BINFO (type);
next prev parent reply other threads:[~2015-03-20 5:32 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-19 19:44 [Bug lto/65475] New: " marxin at gcc dot gnu.org
2015-03-19 19:59 ` [Bug lto/65475] " marxin at gcc dot gnu.org
2015-03-19 22:21 ` hubicka at gcc dot gnu.org
2015-03-20 8:29 ` hubicka at gcc dot gnu.org [this message]
2015-03-20 10:07 ` marxin at gcc dot gnu.org
2015-03-20 10:58 ` rguenth at gcc dot gnu.org
2015-03-20 19:11 ` hubicka at ucw dot cz
2015-03-20 19:12 ` hubicka at gcc dot gnu.org
2015-03-20 21:41 ` hubicka at gcc dot gnu.org
2015-03-23 2:19 ` hubicka at gcc dot gnu.org
2015-03-23 3:01 ` hubicka at gcc dot gnu.org
2015-03-23 21:07 ` jakub at gcc dot gnu.org
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