[Bug c++/58596] New: [4.8/4.9 Regression] [c++11] ICE with decltype in non-static data member initializer

[Bug c++/58596] New: [4.8/4.9 Regression] [c++11] ICE with decltype in non-static data member initializer

[reichelt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58596

            Bug ID: 58596
           Summary: [4.8/4.9 Regression] [c++11] ICE with decltype in
                    non-static data member initializer
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: reichelt at gcc dot gnu.org

The following code snippet (compiled with "-std=c++11") triggers an ICE since
GCC 4.8.0:

==============================================
struct A
{
  int i = [] { return decltype(i)(); }();
};
==============================================

bug.cc: In lambda function:
bug.cc:3:32: internal compiler error: Segmentation fault
   int i = [] { return decltype(i)(); }();
                                ^
0xaef4bf crash_signal
        ../../gcc/gcc/toplev.c:335
0x54c0cd contains_struct_check
        ../../gcc/gcc/tree.h:2722
0x54c0cd build_new_op_1
        ../../gcc/gcc/cp/call.c:5154
0x54cf47 build_new_op(unsigned int, tree_code, int, tree_node*, tree_node*,
tree_node*, tree_node**, int)
        ../../gcc/gcc/cp/call.c:5513
0x672529 build_x_indirect_ref(unsigned int, tree_node*, ref_operator, int)
        ../../gcc/gcc/cp/typeck.c:2866
0x6b165a finish_non_static_data_member(tree_node*, tree_node*, tree_node*)
        ../../gcc/gcc/cp/semantics.c:1580
0x6b6b5f finish_id_expression(tree_node*, tree_node*, tree_node*, cp_id_kind*,
bool, bool, bool*, bool, bool, bool, bool, char const**, unsigned int)
        ../../gcc/gcc/cp/semantics.c:3418
0x642cfb cp_parser_decltype_expr
        ../../gcc/gcc/cp/parser.c:11653
0x642cfb cp_parser_decltype
        ../../gcc/gcc/cp/parser.c:11781
0x65a862 cp_parser_simple_type_specifier
        ../../gcc/gcc/cp/parser.c:14288
0x641fe4 cp_parser_postfix_expression
        ../../gcc/gcc/cp/parser.c:5737
0x64483d cp_parser_unary_expression
        ../../gcc/gcc/cp/parser.c:7009
0x64540f cp_parser_binary_expression
        ../../gcc/gcc/cp/parser.c:7701
0x6458cf cp_parser_assignment_expression
        ../../gcc/gcc/cp/parser.c:7937
0x647733 cp_parser_expression
        ../../gcc/gcc/cp/parser.c:8099
0x641125 cp_parser_expression
        ../../gcc/gcc/cp/parser.c:8138
0x641125 cp_parser_lambda_body
        ../../gcc/gcc/cp/parser.c:9035
0x641125 cp_parser_lambda_expression
        ../../gcc/gcc/cp/parser.c:8574
0x641125 cp_parser_primary_expression
        ../../gcc/gcc/cp/parser.c:4230
0x642050 cp_parser_postfix_expression
        ../../gcc/gcc/cp/parser.c:5814
Please submit a full bug report, [etc.]

[Bug c++/58596] [4.8/4.9 Regression] [c++11] ICE with decltype in non-static data member initializer

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58596

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-10-02
     Ever confirmed|0                           |1

[Bug c++/58596] [4.8/4.9 Regression] [c++11] ICE with decltype in non-static data member initializer

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58596

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at gcc dot gnu.org,
                   |                            |mpolacek at gcc dot gnu.org

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with r196550.

[Bug c++/58596] [4.8/4.9 Regression] [c++11] ICE with decltype in non-static data member initializer

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58596

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.8.2

[Bug c++/58596] [4.8/4.9 Regression] [c++11] ICE with decltype in non-static data member initializer

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58596

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.8.2                       |4.8.3

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 4.8.2 has been released.

[Bug c++/58596] [4.8/4.9 Regression] [c++11] ICE with decltype in non-static data member initializer

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58596

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |paolo.carlini at oracle dot com

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Mine.

[Bug c++/58596] [4.8/4.9 Regression] [c++11] ICE with decltype in non-static data member initializer

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58596

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
            Version|4.9.0                       |4.8.3
         Resolution|---                         |FIXED

--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Fixed mainline and 4.8.3.

[Bug c++/58596] [4.8/4.9 Regression] [c++11] ICE with decltype in non-static data member initializer

[reichelt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58596

--- Comment #5 from Volker Reichelt <reichelt at gcc dot gnu.org> ---
Btw, here's the link to the patch on trunk:

http://gcc.gnu.org/ml/gcc-cvs/2013-10/msg00732.html

[Bug c++/58596] [4.8/4.9 Regression] [c++11] ICE with decltype in non-static data member initializer

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58596

Paolo Carlini <paolo.carlini at oracle dot com> changed:

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

--- Comment #6 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Apparently today something is broken in the SVN -> Bugzilla communication.

[Bug c++/58596] [4.8/4.9 Regression] [c++11] ICE with decltype in non-static data member initializer

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58596

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I see, but it doesn't seem to be on the svnmailer side I think, because if I
tweak svnmailer.conf to send the mail to me instead of gcc-bugzilla, it arrives
just fine.  So, supposedly something broke on the bugzilla side or the
gcc-bugzilla mail processing?

[Bug c++/58596] [4.8/4.9 Regression] [c++11] ICE with decltype in non-static data member initializer

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58596

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |LpSolit at netscape dot net

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I was told bugzilla was upgraded yesterday, so most likely it is some bug
introduced by that.

[Bug c++/58596] [4.8/4.9 Regression] [c++11] ICE with decltype in non-static data member initializer

[LpSolit at netscape dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58596

--- Comment #9 from Frédéric Buclin <LpSolit at netscape dot net> ---
(In reply to Jakub Jelinek from comment #8)
> I was told bugzilla was upgraded yesterday, so most likely it is some bug
> introduced by that.

Yes, see https://bugzilla.mozilla.org/show_bug.cgi?id=928331

I patched GCC Bugzilla 2 minutes ago. Should work fine again.
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Subject: [Bug target/58673] ICE in final_scan_insn for movti_ppc64 with base+offset address
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idX673

--- Comment #5 from Michael Meissner <meissner at gcc dot gnu.org> ---
Author: meissner
Date: Thu Oct 17 17:06:24 2013
New Revision: 203781

URL: http://gcc.gnu.org/viewcvs?rev 3781&root=gcc&view=rev
Log:
[gcc]
2013-10-17  Michael Meissner  <meissner@linux.vnet.ibm.com>

    PR target/58673
    * config/rs6000/rs6000.c (rs6000_legitimate_address_p): Only
    restrict TImode addresses to single indirect registers if both
    -mquad-memory and -mvsx-timode are used.
    (rs6000_output_move_128bit): Use quad_load_store_p to determine if
    we should emit load/store quad.  Remove using %y for quad memory
    addresses.

    * config/rs6000/rs6000.md (mov<mode>_ppc64, TI/PTImode): Add
    constraints to allow load/store quad on machines where TImode is
    not allowed in VSX registers.  Use 'n' instead of 'F' constraint
    for TImode to load integer constants.

[gcc/testsuite]
2013-10-17  Michael Meissner  <meissner@linux.vnet.ibm.com>

    PR target/58673
    * gcc.target/powerpc/pr58673-1.c: New file to test whether
    -mquad-word + -mno-vsx-timode causes errors.
    * gcc.target/powerpc/pr58673-2.c: Likewise.



Added:
    trunk/gcc/testsuite/gcc.target/powerpc/pr58673-1.c
    trunk/gcc/testsuite/gcc.target/powerpc/pr58673-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/rs6000.c
    trunk/gcc/config/rs6000/rs6000.md

[Bug c++/58596] [4.8/4.9 Regression] [c++11] ICE with decltype in non-static data member initializer

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58596

--- Comment #10 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Thanks!

[Bug c++/58596] [4.8/4.9 Regression] [c++11] ICE with decltype in non-static data member initializer

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58596

--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Thanks, seems to work, ran svn-mailer by hand for one commit that hasn't made
it into bugzilla (with svnmailer.conf changed so that it sends everything to me
except for gcc-bugzilla in order not to spam gcc-cvs) and PR58673 got updated
correctly.