[Bug c++/60848] New: Crash while experimenting with c++-0x initializer lists

[Bug c++/60848] New: Crash while experimenting with c++-0x initializer lists

[ibronstein at klocwork dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60848

            Bug ID: 60848
           Summary: Crash while experimenting with c++-0x initializer
                    lists
           Product: gcc
           Version: 4.8.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ibronstein at klocwork dot com

Created attachment 32604
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32604&action=edit
Crashing source

$ g++ -c -std=c++0x test03.cpp
================================================================================
test03.cpp: In function ‘void f()’:
test03.cpp:10:13: internal compiler error: Segmentation fault
   foo({1, 2});
             ^
0x89ffef crash_signal
    ../.././gcc/toplev.c:332
0x4e97ec build_list_conv
    ../.././gcc/cp/call.c:790
0x4e97ec implicit_conversion
    ../.././gcc/cp/call.c:1705
0x4e9e5b reference_binding
    ../.././gcc/cp/call.c:1461
0x4e9344 implicit_conversion
    ../.././gcc/cp/call.c:1695
0x4ea751 add_function_candidate
    ../.././gcc/cp/call.c:2001
0x4e86de add_candidates
    ../.././gcc/cp/call.c:5033
0x4ecead perform_overload_resolution
    ../.././gcc/cp/call.c:3817
0x4f092a build_new_function_call(tree_node*, vec<tree_node*, va_gc,
vl_embed>**, bool, int)
    ../.././gcc/cp/call.c:3894
0x59fe01 finish_call_expr(tree_node*, vec<tree_node*, va_gc, vl_embed>**, bool,
bool, int)
    ../.././gcc/cp/semantics.c:2220
0x55e29a cp_parser_postfix_expression
    ../.././gcc/cp/parser.c:5855
0x56041d cp_parser_unary_expression
    ../.././gcc/cp/parser.c:6729
0x560f4f cp_parser_binary_expression
    ../.././gcc/cp/parser.c:7421
0x5613ff cp_parser_assignment_expression
    ../.././gcc/cp/parser.c:7657
0x562ff3 cp_parser_expression
    ../.././gcc/cp/parser.c:7819
0x56375c cp_parser_expression
    ../.././gcc/cp/parser.c:7858
0x56375c cp_parser_expression_statement
    ../.././gcc/cp/parser.c:9120
0x55a8e7 cp_parser_statement
    ../.././gcc/cp/parser.c:8972
0x55baee cp_parser_statement_seq_opt
    ../.././gcc/cp/parser.c:9238
0x55bc0e cp_parser_compound_statement
    ../.././gcc/cp/parser.c:9192
================================================================================
>From gcc-bugs-return-449086-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Apr 15 17:55:47 2014
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From: "ktietz at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/60830] [4.9 Regression] ICE on bootstrapping on cygwin
Date: Tue, 15 Apr 2014 17:55:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id`830

--- Comment #22 from Kai Tietz <ktietz at gcc dot gnu.org> ---
(In reply to Denis Excoffier from comment #21)
> (In reply to Kai Tietz from comment #17)
> > Just as side-note, I tried to reproduce your reported issue and did a
> > personal build of cygwin's gcc.  It worked fine in stage2.  I couldn't
> > reproduce the reported ICE on stage2.  Which brings me to the question if
> > you are using additional patches/fixes, etc
> Did you use 32bits? Did you use a recent cygwin version? There has been some
> movement recently (2014-03-28) in dtors.cc, although i believe that only
> 64bits is impacted.

I built recent gcc 4.9 on my pre-installed cygwin 32-bit (as you did too, as
logs have shown).  Only difference I made was to disable multilib.  And this
you should do too.

Additionally I built x64 version on my cygwin64 environment too.
So from my point of view it isn't a gcc issue.  As both targets are
bootstrapping without issue for me.

So, it might be an issue with recent cygwin, I can test that too.  I will
continue on that tomorrow as it takes me pretty long to built it native.
Nevetheless I doubt that I will find different results for gcc.  And if it is
really dependent on cygwin-dll version, then it seems to me indeed like a
cygwin-bug

[Bug c++/60848] [4.7/4.8/4.9/4.10 Regression] Crash while experimenting with c++-0x initializer lists

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60848

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-04-15
                 CC|                            |mpolacek at gcc dot gnu.org
            Summary|Crash while experimenting   |[4.7/4.8/4.9/4.10
                   |with c++-0x initializer     |Regression] Crash while
                   |lists                       |experimenting with c++-0x
                   |                            |initializer lists
     Ever confirmed|0                           |1

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed.

[Bug c++/60848] [4.7/4.8/4.9/4.10 Regression] Crash while experimenting with c++-0x initializer lists

[ibronstein at klocwork dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60848

--- Comment #3 from ibronstein at klocwork dot com ---
(In reply to Jonathan Wakely from comment #2)
> This is of course totally invalid code, you can't define
> std::initializer_list yourself.

Agreed.

[Bug c++/60848] [4.7/4.8/4.9/4.10 Regression] Crash while experimenting with c++-0x initializer lists

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60848

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P4
   Target Milestone|---                         |4.7.4

[Bug c++/60848] [4.7/4.8/4.9/4.10 Regression] Crash while experimenting with c++-0x initializer lists

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60848

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |jason at gcc dot gnu.org
           Assignee|unassigned at gcc dot gnu.org      |jason at gcc dot gnu.org

[Bug c++/60848] [4.7/4.8/4.9/4.10 Regression] Crash while experimenting with c++-0x initializer lists

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60848

--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Tue Jun  3 14:11:10 2014
New Revision: 211179

URL: http://gcc.gnu.org/viewcvs?rev=211179&root=gcc&view=rev
Log:
    PR c++/60848
    * call.c (is_std_init_list): Check CLASSTYPE_TEMPLATE_INFO.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/initlist85.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c

[Bug c++/60848] [4.7/4.8/4.9/4.10 Regression] Crash while experimenting with c++-0x initializer lists

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60848

--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Tue Jul 15 19:16:29 2014
New Revision: 212574

URL: https://gcc.gnu.org/viewcvs?rev=212574&root=gcc&view=rev
Log:
    PR c++/60848
    PR c++/61723
    * call.c (is_std_init_list): Don't check CLASSTYPE_TEMPLATE_INFO.
    * class.c (finish_struct): Reject invalid definition of
    std::initializer_list.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/initlist87.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/cp/class.c
    trunk/gcc/testsuite/g++.dg/cpp0x/initlist85.C