[Bug c++/46058] New: gcc crashes with lvalue error on the following Code

[Bug c++/46058] New: gcc crashes with lvalue error on the following Code

[niklas at komani dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46058

           Summary: gcc crashes with lvalue error on the following Code
           Product: gcc
           Version: 4.5.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: niklas@komani.de


Created attachment 22070
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22070
Preprocessed c++ source that triggers the Bug

This is the output of "gcc -v -save-temps -c -o commands.o commands.cpp"
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/i686-pc-linux-gnu/4.5.1/lto-wrapper
Target: i686-pc-linux-gnu
Configured with: ../configure --prefix=/usr
--enable-languages=c,c++,fortran,objc,obj-c++,ada --enable-shared
--enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu
--enable-gnu-unique-object --enable-lto --enable-plugin --disable-multilib
--disable-libstdcxx-pch --with-system-zlib --with-ppl --with-cloog
--libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man
--infodir=/usr/share/info
Thread model: posix
gcc version 4.5.1 (GCC) 
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-c' '-o' 'commands.o' '-mtune=generic'
'-march=pentiumpro'
 /usr/lib/gcc/i686-pc-linux-gnu/4.5.1/cc1plus -E -quiet -v -D_GNU_SOURCE
commands.cpp -mtune=generic -march=pentiumpro -fpch-preprocess -o commands.ii
ignoring nonexistent directory
"/usr/lib/gcc/i686-pc-linux-gnu/4.5.1/../../../../i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/lib/gcc/i686-pc-linux-gnu/4.5.1/../../../../include/c++/4.5.1

/usr/lib/gcc/i686-pc-linux-gnu/4.5.1/../../../../include/c++/4.5.1/i686-pc-linux-gnu
 /usr/lib/gcc/i686-pc-linux-gnu/4.5.1/../../../../include/c++/4.5.1/backward
 /usr/local/include
 /usr/lib/gcc/i686-pc-linux-gnu/4.5.1/include
 /usr/lib/gcc/i686-pc-linux-gnu/4.5.1/include-fixed
 /usr/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-c' '-o' 'commands.o' '-mtune=generic'
'-march=pentiumpro'
 /usr/lib/gcc/i686-pc-linux-gnu/4.5.1/cc1plus -fpreprocessed commands.ii -quiet
-dumpbase commands.cpp -mtune=generic -march=pentiumpro -auxbase-strip
commands.o -version -o commands.s
GNU C++ (GCC) version 4.5.1 (i686-pc-linux-gnu)
    compiled by GNU C version 4.5.1, GMP version 5.0.1, MPFR version 3.0.0-p3,
MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=97 --param ggc-min-heapsize=126654
GNU C++ (GCC) version 4.5.1 (i686-pc-linux-gnu)
    compiled by GNU C version 4.5.1, GMP version 5.0.1, MPFR version 3.0.0-p3,
MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=97 --param ggc-min-heapsize=126654
Compiler executable checksum: 09c286d6478a532084f45ddd675021da
commands.cpp:12:67: internal compiler error: in lvalue_p_1, at cp/tree.c:156
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

[Bug c++/46058] gcc crashes with lvalue error on the following Code

[niklas at komani dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46058

--- Comment #1 from Niklas Schnelle <niklas at komani dot de> 2010-10-17 17:07:03 UTC ---
Forgot to mention, it works with gcc 4.3 and clang

[Bug c++/46058] [4.5/4.6 Regression] gcc crashes with lvalue error on the following Code

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46058

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2010.10.27 22:55:58
   Target Milestone|---                         |4.5.2
            Summary|gcc crashes with lvalue     |[4.5/4.6 Regression] gcc
                   |error on the following Code |crashes with lvalue error
                   |                            |on the following Code
     Ever Confirmed|0                           |1

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2010-10-27 22:55:58 UTC ---
<<< Unknown tree: scope_ref
  struct StringLiterals
  dec >>>


StringLiterals is not dependent so the scope_ref should have been resolved.

4.3.2 gave:
t.cc:12: error: ‘StringLiterals::dec’ cannot appear in a constant-expression
t.cc:12: error: template argument 3 is invalid


But I think that is incorrect as that is a static field.

Note 4.5.0 20100401 (experimental) [trunk revision 157933]  accepted the code
though.

[Bug c++/46058] [4.5/4.6 Regression] gcc crashes with lvalue error on the following Code

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46058

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2

[Bug c++/46058] [4.5/4.6 Regression] gcc crashes with lvalue error on the following Code

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46058

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at redhat dot com

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2010-11-12 15:43:48 UTC ---
It is caused by revision 161559:

http://gcc.gnu.org/ml/gcc-cvs/2010-06/msg01477.html

[Bug c++/46058] [4.5/4.6 Regression] gcc crashes with lvalue error on the following Code

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46058

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

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

[Bug c++/46058] [4.5/4.6 Regression] gcc crashes with lvalue error on the following Code

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46058

--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> 2010-12-03 16:56:42 UTC ---
Author: jason
Date: Fri Dec  3 16:56:37 2010
New Revision: 167435

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=167435
Log:
    PR c++/46058
    * tree.c (lvalue_kind) [SCOPE_REF]: Handle non-dependent case.

Added:
    trunk/gcc/testsuite/g++.dg/template/scope4.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/tree.c
    trunk/gcc/testsuite/ChangeLog

[Bug c++/46058] [4.5/4.6 Regression] gcc crashes with lvalue error on the following Code

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46058

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> 2010-12-03 18:44:31 UTC ---
Fixed.

[Bug c++/46058] [4.5/4.6 Regression] gcc crashes with lvalue error on the following Code

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46058

--- Comment #5 from Jason Merrill <jason at gcc dot gnu.org> 2010-12-03 18:44:07 UTC ---
Author: jason
Date: Fri Dec  3 18:44:04 2010
New Revision: 167438

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=167438
Log:
    PR c++/46058
    * tree.c (lvalue_kind) [SCOPE_REF]: Handle non-dependent case.

Added:
    branches/gcc-4_5-branch/gcc/testsuite/g++.dg/template/scope4.C
Modified:
    branches/gcc-4_5-branch/gcc/cp/ChangeLog
    branches/gcc-4_5-branch/gcc/cp/tree.c
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog