[Bug middle-end/35432] New: [4.1/4.2/4.3/4.4 regression] ICE with zero-sized array

[Bug middle-end/35432] New: [4.1/4.2/4.3/4.4 regression] ICE with zero-sized array

[reichelt at gcc dot gnu dot org]

The following valid code snippet triggers an ICE since GCC 4.1.0:

================================
struct A
{
  char c[0];
};

void foo(struct A a)
{
  (a = a).c;
}
================================

bug.c: In function 'foo':
bug.c:8: internal compiler error: Segmentation fault
Please submit a full bug report, [etc.]


-- 
           Summary: [4.1/4.2/4.3/4.4 regression] ICE with zero-sized array
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code, monitored
          Severity: normal
          Priority: P3
         Component: middle-end
        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=35432

[Bug middle-end/35432] [4.1/4.2/4.3/4.4 regression] ICE with zero-sized array

[reichelt at gcc dot gnu dot org]

-- 

reichelt at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.1.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35432

[Bug middle-end/35432] [4.1/4.2/4.3/4.4 regression] ICE with zero-sized array

[jsm28 at gcc dot gnu dot org]

-- 

jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Priority|P3                          |P2
   Last reconfirmed|0000-00-00 00:00:00         |2008-03-15 01:29:22
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35432

[Bug middle-end/35432] [4.2/4.3/4.4 regression] ICE with zero-sized array

[jsm28 at gcc dot gnu dot org]

------- Comment #1 from jsm28 at gcc dot gnu dot org  2008-07-04 22:36 -------
Closing 4.1 branch.


-- 

jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.1/4.2/4.3/4.4 regression]|[4.2/4.3/4.4 regression] ICE
                   |ICE with zero-sized array   |with zero-sized array
   Target Milestone|4.1.3                       |4.2.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35432

[Bug middle-end/35432] [4.2/4.3/4.4 regression] ICE with zero-sized array

[aldyh at gcc dot gnu dot org]

------- Comment #2 from aldyh at gcc dot gnu dot org  2008-08-06 10:00 -------
http://gcc.gnu.org/ml/gcc-patches/2008-08/msg00322.html


-- 

aldyh at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |aldyh at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35432

[Bug middle-end/35432] [4.2/4.3/4.4 regression] ICE with zero-sized array

[aldyh at gcc dot gnu dot org]

------- Comment #3 from aldyh at gcc dot gnu dot org  2008-08-06 10:26 -------
Subject: Bug 35432

Author: aldyh
Date: Wed Aug  6 10:25:22 2008
New Revision: 138793

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=138793
Log:
        PR middle-end/35432
        * gimplify.c (gimplify_modify_expr): Do not optimize zero-sized types
        if want_value.
 testsuite/
        * gcc.c-torture/compile/pr35432.c: New file.


Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr35432.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimplify.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35432

[Bug middle-end/35432] [4.2/4.3/4.4 regression] ICE with zero-sized array

[aldyh at gcc dot gnu dot org]

------- Comment #4 from aldyh at gcc dot gnu dot org  2008-08-06 10:32 -------
Subject: Bug 35432

Author: aldyh
Date: Wed Aug  6 10:31:22 2008
New Revision: 138794

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=138794
Log:
        PR middle-end/35432
        * gimplify.c (gimplify_modify_expr): Do not optimize zero-sized types
        if want_value.
 testsuite/
        * gcc.c-torture/compile/pr35432.c: New file.


Added:
    branches/gcc-4_3-branch/gcc/testsuite/gcc.c-torture/compile/pr35432.c
Modified:
    branches/gcc-4_3-branch/gcc/ChangeLog
    branches/gcc-4_3-branch/gcc/gimplify.c
    branches/gcc-4_3-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35432

[Bug middle-end/35432] [4.2/4.3/4.4 regression] ICE with zero-sized array

[aldyh at gcc dot gnu dot org]

------- Comment #5 from aldyh at gcc dot gnu dot org  2008-08-06 10:43 -------
Subject: Bug 35432

Author: aldyh
Date: Wed Aug  6 10:41:39 2008
New Revision: 138796

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=138796
Log:
        PR middle-end/35432
        * gimplify.c (gimplify_modify_expr): Do not optimize zero-sized types
        if want_value.
 testsuite/
        * gcc.c-torture/compile/pr35432.c: New file.

Added:
    branches/gcc-4_2-branch/gcc/testsuite/gcc.c-torture/compile/pr35432.c
Modified:
    branches/gcc-4_2-branch/gcc/ChangeLog
    branches/gcc-4_2-branch/gcc/gimplify.c
    branches/gcc-4_2-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35432

[Bug middle-end/35432] [4.2/4.3/4.4 regression] ICE with zero-sized array

[aldyh at gcc dot gnu dot org]

------- Comment #6 from aldyh at gcc dot gnu dot org  2008-08-06 10:43 -------
Fixed on mainline, 4.3, and 4.2.


-- 

aldyh at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35432

[Bug middle-end/35432] [4.2/4.3/4.4 regression] ICE with zero-sized array

[rguenth at gcc dot gnu dot org]

------- Comment #7 from rguenth at gcc dot gnu dot org  2008-08-06 21:04 -------
Subject: Bug 35432

Author: rguenth
Date: Wed Aug  6 21:03:07 2008
New Revision: 138828

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=138828
Log:
2008-08-06  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35432
        * gcc.c-torture/compile/pr35432.c: Remove duplicate.

Modified:
    branches/gcc-4_3-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_3-branch/gcc/testsuite/gcc.c-torture/compile/pr35432.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35432

[Bug middle-end/35432] [4.2/4.3/4.4 regression] ICE with zero-sized array

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.2.5                       |4.3.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35432