[Bug c++/49216] New: [C++0x][Regression] ICE on compiling new-expression with braced-init-list for arrays

[Bug c++/49216] New: [C++0x][Regression] ICE on compiling new-expression with braced-init-list for arrays

[gintensubaru at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49216

           Summary: [C++0x][Regression] ICE on compiling new-expression
                    with braced-init-list for arrays
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: gintensubaru@gmail.com


int main() {
  new int[1]{};
}


This code becomes ICE on following versions :

4.6.0
4.6-20110527
4.7-20110523


Here's the error message ( on gcc-4.6.0 ) :

$ g++ -std=c++0x bug.cc
bug.cc: In function 'int main()':
bug.cc:2:15: internal compiler error: in gimplify_init_constructor, at
gimplify.c:3973
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

[Bug c++/49216] [C++0x][Regression] ICE on compiling new-expression with braced-init-list for arrays

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49216

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2011.06.20 21:30:25
                 CC|                            |jason at gcc dot gnu.org
         AssignedTo|unassigned at gcc dot       |jason at gcc dot gnu.org
                   |gnu.org                     |
     Ever Confirmed|0                           |1

[Bug c++/49216] [C++0x][Regression] ICE on compiling new-expression with braced-init-list for arrays

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49216

--- Comment #1 from Jason Merrill <jason at gcc dot gnu.org> 2011-06-21 02:24:20 UTC ---
Author: jason
Date: Tue Jun 21 02:24:17 2011
New Revision: 175237

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175237
Log:
    PR c++/49216
    * init.c (build_vec_init): Don't try to use a CONSTRUCTOR when
    base is a pointer.
    * typeck2.c (process_init_constructor_array): Use {} for classes,
    too.
    * call.c (convert_like_real): Handle substitution failure.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/initlist53.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/cp/init.c
    trunk/gcc/cp/typeck2.c
    trunk/gcc/testsuite/ChangeLog

[Bug c++/49216] [C++0x][Regression] ICE on compiling new-expression with braced-init-list for arrays

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49216

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.7.0

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> 2011-06-21 02:28:21 UTC ---
Fixed for 4.7.

[Bug c++/49216] [C++0x][Regression] ICE on compiling new-expression with braced-init-list for arrays

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49216

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ebotcazou at gcc dot
                   |                            |gnu.org

--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-06-25 22:17:04 UTC ---
The test doesn't pass on SPARC/Solaris:

Running target unix
FAIL: g++.dg/cpp0x/initlist53.C execution test

Program received signal SIGABRT, Aborted.
0xff1a01cc in _libc_kill () from /usr/lib/libc.so.1
(gdb) bt
#0  0xff1a01cc in _libc_kill () from /usr/lib/libc.so.1
#1  0xff13598c in abort () from /usr/lib/libc.so.1
#2  0x000107d4 in main ()
    at
/nile.build/botcazou/gcc-head/src/gcc/testsuite/g++.dg/cpp0x/initlist53.C:19
(gdb) frame 2
#2  0x000107d4 in main ()
    at
/nile.build/botcazou/gcc-head/src/gcc/testsuite/g++.dg/cpp0x/initlist53.C:19
19          abort();
(gdb) p p
$2 = (int *) 0x20ac8
(gdb) p p[0]
$3 = 133840

[Bug c++/49216] [C++0x][Regression] ICE on compiling new-expression with braced-init-list for arrays

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49216

Jason Merrill <jason at gcc dot gnu.org> changed:

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

--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> 2011-06-29 20:07:08 UTC ---
Indeed, it only passes on linux because malloc returns zeroed memory.

[Bug c++/49216] [C++0x][Regression] ICE on compiling new-expression with braced-init-list for arrays

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49216

--- Comment #5 from Jason Merrill <jason at gcc dot gnu.org> 2011-06-29 22:28:18 UTC ---
Author: jason
Date: Wed Jun 29 22:28:15 2011
New Revision: 175674

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175674
Log:
    PR c++/49216
    * init.c (build_new_1): Pass {} down to build_vec_init.
    (build_vec_init): Handle it.

Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/init.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/cpp0x/initlist-value.C
    trunk/gcc/testsuite/g++.dg/cpp0x/initlist53.C
    trunk/gcc/testsuite/g++.old-deja/g++.ext/arrnew2.C

[Bug c++/49216] [C++0x][Regression] ICE on compiling new-expression with braced-init-list for arrays

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49216

Jason Merrill <jason at gcc dot gnu.org> changed:

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

--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> 2011-06-29 22:28:46 UTC ---
Fixed for real this time, hopefully.

[Bug c++/49216] [4.6 regression][C++0x] ICE on compiling new-expression with braced-init-list for arrays

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49216

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |
            Summary|[C++0x][Regression] ICE on  |[4.6 regression][C++0x] ICE
                   |compiling new-expression    |on compiling new-expression
                   |with braced-init-list for   |with braced-init-list for
                   |arrays                      |arrays

--- Comment #7 from Jason Merrill <jason at gcc dot gnu.org> 2011-10-11 18:32:41 UTC ---
Still a 4.6 regression.

[Bug c++/49216] [4.6 regression][C++0x] ICE on compiling new-expression with braced-init-list for arrays

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49216

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |z0sh at sogetthis dot com

--- Comment #8 from Jason Merrill <jason at gcc dot gnu.org> 2011-10-11 18:33:12 UTC ---
*** Bug 50458 has been marked as a duplicate of this bug. ***

[Bug c++/49216] [4.6 regression][C++0x] ICE on compiling new-expression with braced-init-list for arrays

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49216

--- Comment #9 from Jason Merrill <jason at gcc dot gnu.org> 2011-10-11 19:50:55 UTC ---
Author: jason
Date: Tue Oct 11 19:50:49 2011
New Revision: 179819

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179819
Log:
    PR c++/49216
    * init.c (build_vec_init): Avoid crash on new int[1]{}.

Added:
    branches/gcc-4_6-branch/gcc/testsuite/g++.dg/cpp0x/initlist-49216.C
Modified:
    branches/gcc-4_6-branch/gcc/cp/ChangeLog
    branches/gcc-4_6-branch/gcc/cp/init.c
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog

[Bug c++/49216] [4.6 regression][C++0x] ICE on compiling new-expression with braced-init-list for arrays

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49216

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|4.7.0                       |4.6.2

--- Comment #10 from Jason Merrill <jason at gcc dot gnu.org> 2011-10-11 19:51:46 UTC ---
ICE fixed for 4.6.2; value-initialization semantics fixed for 4.7.