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* [Bug c++/35741] New: [4.2/4.3/4.4 regression] ICE with offsetof and references
@ 2008-03-28 19:27 reichelt at gcc dot gnu dot org
2008-03-28 19:27 ` [Bug c++/35741] " reichelt at gcc dot gnu dot org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: reichelt at gcc dot gnu dot org @ 2008-03-28 19:27 UTC (permalink / raw)
To: gcc-bugs
The following (valid ?) code snippet triggers an ICE since GCC 4.2.0:
=========================================
struct A
{
char c;
int& i;
};
int j = __builtin_offsetof (A, i);
=========================================
bug.cc:7: warning: invalid access to non-static data member 'A::i' of NULL
object
bug.cc:7: warning: (perhaps the 'offsetof' macro was used incorrectly)
bug.cc:7: internal compiler error: in fold_offsetof_1, at c-common.c:6838
Please submit a full bug report, [etc.]
--
Summary: [4.2/4.3/4.4 regression] ICE with offsetof and
references
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code, monitored
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: reichelt at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35741
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug c++/35741] [4.2/4.3/4.4 regression] ICE with offsetof and references 2008-03-28 19:27 [Bug c++/35741] New: [4.2/4.3/4.4 regression] ICE with offsetof and references reichelt at gcc dot gnu dot org @ 2008-03-28 19:27 ` reichelt at gcc dot gnu dot org 2008-03-30 20:55 ` pinskia at gcc dot gnu dot org ` (5 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: reichelt at gcc dot gnu dot org @ 2008-03-28 19:27 UTC (permalink / raw) To: gcc-bugs -- reichelt at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |4.2.4 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35741 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/35741] [4.2/4.3/4.4 regression] ICE with offsetof and references 2008-03-28 19:27 [Bug c++/35741] New: [4.2/4.3/4.4 regression] ICE with offsetof and references reichelt at gcc dot gnu dot org 2008-03-28 19:27 ` [Bug c++/35741] " reichelt at gcc dot gnu dot org @ 2008-03-30 20:55 ` pinskia at gcc dot gnu dot org 2008-04-02 17:17 ` jakub at gcc dot gnu dot org ` (4 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: pinskia at gcc dot gnu dot org @ 2008-03-30 20:55 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from pinskia at gcc dot gnu dot org 2008-03-30 20:54 ------- Confirmed, it has been failing since at least 4.2.0 20061019 . -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2008-03-30 20:54:22 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35741 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/35741] [4.2/4.3/4.4 regression] ICE with offsetof and references 2008-03-28 19:27 [Bug c++/35741] New: [4.2/4.3/4.4 regression] ICE with offsetof and references reichelt at gcc dot gnu dot org 2008-03-28 19:27 ` [Bug c++/35741] " reichelt at gcc dot gnu dot org 2008-03-30 20:55 ` pinskia at gcc dot gnu dot org @ 2008-04-02 17:17 ` jakub at gcc dot gnu dot org 2008-04-02 19:03 ` jakub at gcc dot gnu dot org ` (3 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: jakub at gcc dot gnu dot org @ 2008-04-02 17:17 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from jakub at gcc dot gnu dot org 2008-04-02 17:17 ------- IMNSHO this is invalid. [lib.support.types]/5 says the first argument must be a POD structure or POD union, but struct A isn't POD structure because of the reference in it. -- jakub at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords|ice-on-valid-code |ice-on-invalid-code http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35741 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/35741] [4.2/4.3/4.4 regression] ICE with offsetof and references 2008-03-28 19:27 [Bug c++/35741] New: [4.2/4.3/4.4 regression] ICE with offsetof and references reichelt at gcc dot gnu dot org ` (2 preceding siblings ...) 2008-04-02 17:17 ` jakub at gcc dot gnu dot org @ 2008-04-02 19:03 ` jakub at gcc dot gnu dot org 2008-04-03 7:45 ` jakub at gcc dot gnu dot org ` (2 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: jakub at gcc dot gnu dot org @ 2008-04-02 19:03 UTC (permalink / raw) To: gcc-bugs -- jakub at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|unassigned at gcc dot gnu |jakub at gcc dot gnu dot org |dot org | Status|NEW |ASSIGNED Last reconfirmed|2008-03-30 20:54:22 |2008-04-02 19:03:11 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35741 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/35741] [4.2/4.3/4.4 regression] ICE with offsetof and references 2008-03-28 19:27 [Bug c++/35741] New: [4.2/4.3/4.4 regression] ICE with offsetof and references reichelt at gcc dot gnu dot org ` (3 preceding siblings ...) 2008-04-02 19:03 ` jakub at gcc dot gnu dot org @ 2008-04-03 7:45 ` jakub at gcc dot gnu dot org 2008-04-03 7:52 ` jakub at gcc dot gnu dot org 2008-04-03 7:53 ` jakub at gcc dot gnu dot org 6 siblings, 0 replies; 8+ messages in thread From: jakub at gcc dot gnu dot org @ 2008-04-03 7:45 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from jakub at gcc dot gnu dot org 2008-04-03 07:44 ------- Subject: Bug 35741 Author: jakub Date: Thu Apr 3 07:43:46 2008 New Revision: 133863 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=133863 Log: PR c++/35741 * semantics.c (finish_offsetof): Undo effect of convert_from_reference before calling fold_offsetof. * g++.dg/other/offsetof5.C: New test. Added: trunk/gcc/testsuite/g++.dg/other/offsetof5.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/semantics.c trunk/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35741 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/35741] [4.2/4.3/4.4 regression] ICE with offsetof and references 2008-03-28 19:27 [Bug c++/35741] New: [4.2/4.3/4.4 regression] ICE with offsetof and references reichelt at gcc dot gnu dot org ` (4 preceding siblings ...) 2008-04-03 7:45 ` jakub at gcc dot gnu dot org @ 2008-04-03 7:52 ` jakub at gcc dot gnu dot org 2008-04-03 7:53 ` jakub at gcc dot gnu dot org 6 siblings, 0 replies; 8+ messages in thread From: jakub at gcc dot gnu dot org @ 2008-04-03 7:52 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from jakub at gcc dot gnu dot org 2008-04-03 07:51 ------- Subject: Bug 35741 Author: jakub Date: Thu Apr 3 07:51:01 2008 New Revision: 133864 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=133864 Log: PR c++/35741 * semantics.c (finish_offsetof): Undo effect of convert_from_reference before calling fold_offsetof. * g++.dg/other/offsetof5.C: New test. Added: branches/gcc-4_3-branch/gcc/testsuite/g++.dg/other/offsetof5.C Modified: branches/gcc-4_3-branch/gcc/cp/ChangeLog branches/gcc-4_3-branch/gcc/cp/semantics.c branches/gcc-4_3-branch/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35741 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/35741] [4.2/4.3/4.4 regression] ICE with offsetof and references 2008-03-28 19:27 [Bug c++/35741] New: [4.2/4.3/4.4 regression] ICE with offsetof and references reichelt at gcc dot gnu dot org ` (5 preceding siblings ...) 2008-04-03 7:52 ` jakub at gcc dot gnu dot org @ 2008-04-03 7:53 ` jakub at gcc dot gnu dot org 6 siblings, 0 replies; 8+ messages in thread From: jakub at gcc dot gnu dot org @ 2008-04-03 7:53 UTC (permalink / raw) To: gcc-bugs ------- Comment #5 from jakub at gcc dot gnu dot org 2008-04-03 07:52 ------- Fixed. -- jakub at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35741 ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2008-04-03 7:53 UTC | newest] Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2008-03-28 19:27 [Bug c++/35741] New: [4.2/4.3/4.4 regression] ICE with offsetof and references reichelt at gcc dot gnu dot org 2008-03-28 19:27 ` [Bug c++/35741] " reichelt at gcc dot gnu dot org 2008-03-30 20:55 ` pinskia at gcc dot gnu dot org 2008-04-02 17:17 ` jakub at gcc dot gnu dot org 2008-04-02 19:03 ` jakub at gcc dot gnu dot org 2008-04-03 7:45 ` jakub at gcc dot gnu dot org 2008-04-03 7:52 ` jakub at gcc dot gnu dot org 2008-04-03 7:53 ` jakub at gcc dot gnu dot org
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