[Bug c++/65811] New: ice in vague_linkage_p

[Bug c++/65811] New: ice in vague_linkage_p

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65811

            Bug ID: 65811
           Summary: ice in vague_linkage_p
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com

Created attachment 35364
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35364&action=edit
gzipped C++ source code

The attached code, when compiled by gcc trunk dated 20150418, does this

xcsv_tokens.in: In function ‘xt_mapping* in_word_set(const char*, unsigned
int)’
:
xcsv_tokens.in:28:5: internal compiler error: in vague_linkage_p, at
cp/decl2.c:
1866
0x703cde vague_linkage_p(tree_node*)
    ../../src/trunk/gcc/cp/decl2.c:1866
0x63230c maybe_commonize_var(tree_node*)
    ../../src/trunk/gcc/cp/decl.c:5200
0x65fff5 cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int)
    ../../src/trunk/gcc/cp/decl.c:6692
0x750d6e cp_parser_init_declarator
    ../../src/trunk/gcc/cp/parser.c:17280
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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/65811] [6 Regression] ice in vague_linkage_p
Date: Mon, 20 Apr 2015 10:30:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ide811

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-04-20
                 CC|                            |mpolacek at gcc dot gnu.org
   Target Milestone|---                         |6.0
            Summary|ice in vague_linkage_p      |[6 Regression] ice in
                   |                            |vague_linkage_p
     Ever confirmed|0                           |1

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

[Bug c++/65811] [6 Regression] ice in vague_linkage_p

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65811

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

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

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with r222134.

[Bug c++/65811] [6 Regression] ice in vague_linkage_p

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65811

--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
struct foo { int i; };

static void fn1 ();
inline void
fn1 ()
{
  static struct foo a[1];
}

[Bug c++/65811] [6 Regression] ice in vague_linkage_p

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65811

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

[Bug c++/65811] [6 Regression] ice in vague_linkage_p

[paolo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65811

--- Comment #5 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> ---
Author: paolo
Date: Wed Jun 24 09:21:45 2015
New Revision: 224888

URL: https://gcc.gnu.org/viewcvs?rev=224888&root=gcc&view=rev
Log:
/cp
2015-06-24  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/65811
        * decl.c (duplicate_decls): Adjust DECL_COMDAT of newdecl.

/testsuite
2015-06-24  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/65811
        * g++.dg/other/linkage2.C: New.

Added:
    trunk/gcc/testsuite/g++.dg/other/linkage2.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/decl.c
    trunk/gcc/testsuite/ChangeLog

[Bug c++/65811] [6 Regression] ice in vague_linkage_p

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65811

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

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

--- Comment #6 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Fixed.