[Bug c++/42010] New: ICE: lang_* check: failed in discriminator_for_local_entity, at cp/mangle.c:1581

[Bug c++/42010] New: ICE: lang_* check: failed in discriminator_for_local_entity, at cp/mangle.c:1581

[zsojka at seznam dot cz]

Following code crashes in gcc trunk revisions r154095 and r154098. r153685
compiles fine.

Command line switches:
g++ -std=c++0x
or
g++ -std=gnu++0x

------ testcase.cpp ------
struct A {
  void f()
  {
    static struct {
    } s;
  }
};
--------------------------

$ /mnt/svn/gcc-trunk/binary-154095-lto/bin/g++ -v -std=gnu++0x -c -o tmp.o
testcase.cpp
Using built-in specs.
COLLECT_GCC=/mnt/svn/gcc-trunk/binary-154095-lto/bin/g++
COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-154095-lto/libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../configure --enable-languages=lto,c,c++
--prefix=/mnt/svn/gcc-trunk/binary-154095-lto/
Thread model: posix
gcc version 4.5.0 20091111 (experimental) (GCC)
COLLECT_GCC_OPTIONS='-v' '-std=gnu++0x' '-c' '-o' 'tmp.o' '-shared-libgcc'
'-mtune=generic'

/mnt/svn/gcc-trunk/binary-154095-lto/libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/cc1plus
-fpreprocessed testcase-x.i -quiet -dumpbase testcase-x.i -mtune=generic
-auxbase-strip tmp.o -std=gnu++0x -version -o /tmp/ccQx8uCh.s
GNU C++ (GCC) version 4.5.0 20091111 (experimental) (x86_64-unknown-linux-gnu)
        compiled by GNU C version 4.5.0 20091111 (experimental), GMP version
4.3.1, MPFR version 2.4.1-p5, MPC version 0.7
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C++ (GCC) version 4.5.0 20091111 (experimental) (x86_64-unknown-linux-gnu)
        compiled by GNU C version 4.5.0 20091111 (experimental), GMP version
4.3.1, MPFR version 2.4.1-p5, MPC version 0.7
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: ea1de8eb0212138b74b7539fd1683110
testcase-x.i: In member function ‘void A::f()’:
testcase-x.i:5:7: internal compiler error: lang_* check: failed in
discriminator_for_local_entity, at cp/mangle.c:1581
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: ICE: lang_* check: failed in
                    discriminator_for_local_entity, at cp/mangle.c:1581
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zsojka at seznam dot cz
  GCC host triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42010

[Bug c++/42010] ICE: lang_* check: failed in discriminator_for_local_entity, at cp/mangle.c:1581

[zsojka at seznam dot cz]

------- Comment #1 from zsojka at seznam dot cz  2009-11-14 12:50 -------
Created an attachment (id=19016)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19016&action=view)
even shorter testcase

This testcase is invalid C++, gcc gives diagnostics and crashes with the same
error message


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42010

[Bug c++/42010] ICE: lang_* check: failed in discriminator_for_local_entity, at cp/mangle.c:1581

[zsojka at seznam dot cz]

------- Comment #2 from zsojka at seznam dot cz  2009-11-15 15:17 -------
Since:
r153816 | jason | 2009-11-02 17:14:26 +0100 (Mon, 02 Nov 2009) | 5 lines

        Restrict DR 757 change to C++0x mode.
        * decl2.c (mark_used): Check cxx_dialect.
        * decl.c (grokfndecl): Do check type linkage in C++98 mode.
        (grokvardecl): Likewise.
        * pt.c (check_instantiated_arg): Likewise.

Everything works fine when compiled with --enable-checking=release, the
resulting binary seems to be working correctly.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42010

[Bug c++/42010] [C++0x] ICE: lang_* check: failed in discriminator_for_local_entity, at cp/mangle.c:1581

[paolo dot carlini at oracle dot com]

------- Comment #3 from paolo dot carlini at oracle dot com  2009-11-15 16:45 -------
It still crashes with checking enabled though, and that isn't good. Let's add
Jason in CC, maybe he can have a look...


-- 

paolo dot carlini at oracle dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at gcc dot gnu dot org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-11-15 16:45:22
               date|                            |
            Summary|ICE: lang_* check: failed in|[C++0x] ICE: lang_* check:
                   |discriminator_for_local_enti|failed in
                   |ty, at cp/mangle.c:1581     |discriminator_for_local_enti
                   |                            |ty, at cp/mangle.c:1581


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42010

[Bug c++/42010] [C++0x] ICE: lang_* check: failed in discriminator_for_local_entity, at cp/mangle.c:1581

[jason at gcc dot gnu dot org]

-- 

jason at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jason at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2009-11-15 16:45:22         |2009-12-04 23:25:22
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42010

[Bug c++/42010] [C++0x] ICE: lang_* check: failed in discriminator_for_local_entity, at cp/mangle.c:1581

[jason at gcc dot gnu dot org]

------- Comment #4 from jason at gcc dot gnu dot org  2009-12-05 01:52 -------
Subject: Bug 42010

Author: jason
Date: Sat Dec  5 01:51:46 2009
New Revision: 155007

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155007
Log:
        PR c++/42010
        * cp-tree.h (DECL_DISCRIMINATOR_SET_P): New.
        * mangle.c (discriminator_for_local_entity): Check it.

Added:
    trunk/gcc/testsuite/g++.dg/abi/local2.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/cp-tree.h
    trunk/gcc/cp/mangle.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42010

[Bug c++/42010] [C++0x] ICE: lang_* check: failed in discriminator_for_local_entity, at cp/mangle.c:1581

[jason at gcc dot gnu dot org]

------- Comment #5 from jason at gcc dot gnu dot org  2009-12-05 01:56 -------
Fixed.


-- 

jason at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42010