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* [Bug c++/46160] New: [4.5/4.6 Regression] ICE with volatile structure and enum
@ 2010-10-24 22:12 jsm28 at gcc dot gnu.org
2010-10-25 2:30 ` [Bug c++/46160] " hjl.tools at gmail dot com
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2010-10-24 22:12 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46160
Summary: [4.5/4.6 Regression] ICE with volatile structure and
enum
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: jsm28@gcc.gnu.org
The following C++ code
void f(int);
void
g()
{
struct S
{
enum E { A } ;
};
S s;
volatile S *p = &s;
f((int) p->A);
}
results in
gcc: internal compiler error: Segmentation fault (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
with 4.5 and 4.6, but compiles fine with 4.4.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/46160] [4.5/4.6 Regression] ICE with volatile structure and enum
2010-10-24 22:12 [Bug c++/46160] New: [4.5/4.6 Regression] ICE with volatile structure and enum jsm28 at gcc dot gnu.org
@ 2010-10-25 2:30 ` hjl.tools at gmail dot com
2010-10-26 14:09 ` rguenth at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: hjl.tools at gmail dot com @ 2010-10-25 2:30 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46160
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2010.10.25 02:29:50
CC| |jason at redhat dot com
Ever Confirmed|0 |1
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2010-10-25 02:29:50 UTC ---
It is caused by revision 159072:
http://gcc.gnu.org/ml/gcc-cvs/2010-05/msg00122.html
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/46160] [4.5/4.6 Regression] ICE with volatile structure and enum
2010-10-24 22:12 [Bug c++/46160] New: [4.5/4.6 Regression] ICE with volatile structure and enum jsm28 at gcc dot gnu.org
2010-10-25 2:30 ` [Bug c++/46160] " hjl.tools at gmail dot com
@ 2010-10-26 14:09 ` rguenth at gcc dot gnu.org
2010-11-05 15:17 ` jakub at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2010-10-26 14:09 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46160
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.5.2
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/46160] [4.5/4.6 Regression] ICE with volatile structure and enum
2010-10-24 22:12 [Bug c++/46160] New: [4.5/4.6 Regression] ICE with volatile structure and enum jsm28 at gcc dot gnu.org
2010-10-25 2:30 ` [Bug c++/46160] " hjl.tools at gmail dot com
2010-10-26 14:09 ` rguenth at gcc dot gnu.org
@ 2010-11-05 15:17 ` jakub at gcc dot gnu.org
2010-11-05 19:03 ` jakub at gcc dot gnu.org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu.org @ 2010-11-05 15:17 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46160
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org
|gnu.org |
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-11-05 15:17:17 UTC ---
Created attachment 22293
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22293
gcc46-pr46160.patch
Untested fix.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/46160] [4.5/4.6 Regression] ICE with volatile structure and enum
2010-10-24 22:12 [Bug c++/46160] New: [4.5/4.6 Regression] ICE with volatile structure and enum jsm28 at gcc dot gnu.org
` (2 preceding siblings ...)
2010-11-05 15:17 ` jakub at gcc dot gnu.org
@ 2010-11-05 19:03 ` jakub at gcc dot gnu.org
2010-11-05 19:11 ` [Bug c++/46160] [4.5 " jakub at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu.org @ 2010-11-05 19:03 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46160
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-11-05 19:02:52 UTC ---
Author: jakub
Date: Fri Nov 5 19:02:46 2010
New Revision: 166372
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166372
Log:
PR c++/46160
* cp-gimplify.c (cp_gimplify_expr): Drop volatile MEM_REFs
on the RHS to avoid infinite recursion with gimplify_expr.
* g++.dg/opt/empty2.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/opt/empty2.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/cp-gimplify.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/46160] [4.5 Regression] ICE with volatile structure and enum
2010-10-24 22:12 [Bug c++/46160] New: [4.5/4.6 Regression] ICE with volatile structure and enum jsm28 at gcc dot gnu.org
` (3 preceding siblings ...)
2010-11-05 19:03 ` jakub at gcc dot gnu.org
@ 2010-11-05 19:11 ` jakub at gcc dot gnu.org
2010-11-11 20:39 ` jakub at gcc dot gnu.org
2010-11-11 22:13 ` jakub at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu.org @ 2010-11-05 19:11 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46160
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.5/4.6 Regression] ICE |[4.5 Regression] ICE with
|with volatile structure and |volatile structure and enum
|enum |
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-11-05 19:11:44 UTC ---
Fixed on the trunk so far.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/46160] [4.5 Regression] ICE with volatile structure and enum
2010-10-24 22:12 [Bug c++/46160] New: [4.5/4.6 Regression] ICE with volatile structure and enum jsm28 at gcc dot gnu.org
` (4 preceding siblings ...)
2010-11-05 19:11 ` [Bug c++/46160] [4.5 " jakub at gcc dot gnu.org
@ 2010-11-11 20:39 ` jakub at gcc dot gnu.org
2010-11-11 22:13 ` jakub at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu.org @ 2010-11-11 20:39 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46160
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-11-11 20:39:33 UTC ---
Author: jakub
Date: Thu Nov 11 20:39:25 2010
New Revision: 166619
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166619
Log:
2010-11-11 Jakub Jelinek <jakub@redhat.com>
Backport from mainline
2010-11-05 Jakub Jelinek <jakub@redhat.com>
PR c++/46160
* cp-gimplify.c (cp_gimplify_expr): Drop volatile INDIRECT_REFs
on the RHS to avoid infinite recursion with gimplify_expr.
* g++.dg/opt/empty2.C: New test.
Added:
branches/gcc-4_5-branch/gcc/testsuite/g++.dg/opt/empty2.C
Modified:
branches/gcc-4_5-branch/gcc/cp/ChangeLog
branches/gcc-4_5-branch/gcc/cp/cp-gimplify.c
branches/gcc-4_5-branch/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/46160] [4.5 Regression] ICE with volatile structure and enum
2010-10-24 22:12 [Bug c++/46160] New: [4.5/4.6 Regression] ICE with volatile structure and enum jsm28 at gcc dot gnu.org
` (5 preceding siblings ...)
2010-11-11 20:39 ` jakub at gcc dot gnu.org
@ 2010-11-11 22:13 ` jakub at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu.org @ 2010-11-11 22:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46160
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-11-11 22:12:44 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 8+ messages in thread
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2010-10-24 22:12 [Bug c++/46160] New: [4.5/4.6 Regression] ICE with volatile structure and enum jsm28 at gcc dot gnu.org
2010-10-25 2:30 ` [Bug c++/46160] " hjl.tools at gmail dot com
2010-10-26 14:09 ` rguenth at gcc dot gnu.org
2010-11-05 15:17 ` jakub at gcc dot gnu.org
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