[Bug c++/54122] New: gcc segfault comparing enum class in lambda inside constructor of a templated class

["gcc at nnamdi dot co.uk" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54122

             Bug #: 54122
           Summary: gcc segfault comparing enum class in lambda inside
                    constructor of a templated class
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: gcc@nnamdi.co.uk


Created attachment 27890
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27890
Preprocessed source output from gcc

enum class Enum
{
    VALUE_1,
    VALUE_2
};

template <class T>
struct Struct
{
    Struct()
    {
        const auto func = [=]
        {
            return (e == Enum::VALUE_2)
        };

        (void)func;
    }

    Enum e;
};

int main()
{
}

------------------------------------------------------------------------


/tmp$ g++ -v -save-temps -std=c++11 test.cpp
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.7/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro
4.7.0-1ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-4.7/README.Bugs
--enable-languages=c,c++,go,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.7 --enable-shared --enable-linker-build-id
--with-system-zlib --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.7
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object
--enable-plugin --enable-objc-gc --disable-werror --with-arch-32=i686
--with-tune=generic --enable-checking=release --build=x86_64-linux-gnu
--host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.7.0 (Ubuntu/Linaro 4.7.0-1ubuntu1) 
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-std=c++11' '-shared-libgcc'
'-mtune=generic' '-march=x86-64'
 /usr/lib/gcc/x86_64-linux-gnu/4.7/cc1plus -E -quiet -v -imultiarch
x86_64-linux-gnu -D_GNU_SOURCE test.cpp -mtune=generic -march=x86-64 -std=c++11
-fpch-preprocess -fstack-protector -o test.ii
ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
ignoring nonexistent directory
"/usr/lib/gcc/x86_64-linux-gnu/4.7/../../../../x86_64-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/include/c++/4.7
 /usr/include/c++/4.7/x86_64-linux-gnu
 /usr/include/c++/4.7/backward
 /usr/lib/gcc/x86_64-linux-gnu/4.7/include
 /usr/local/include
 /usr/lib/gcc/x86_64-linux-gnu/4.7/include-fixed
 /usr/include/x86_64-linux-gnu
 /usr/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-std=c++11' '-shared-libgcc'
'-mtune=generic' '-march=x86-64'
 /usr/lib/gcc/x86_64-linux-gnu/4.7/cc1plus -fpreprocessed test.ii -quiet
-dumpbase test.cpp -mtune=generic -march=x86-64 -auxbase test -std=c++11
-version -fstack-protector -o test.s
GNU C++ (Ubuntu/Linaro 4.7.0-1ubuntu1) version 4.7.0 (x86_64-linux-gnu)
    compiled by GNU C version 4.7.0, GMP version 5.0.2, MPFR version 3.1.0-p3,
MPC version 0.9
GGC heuristics: --param ggc-min-expand=98 --param ggc-min-heapsize=127391
GNU C++ (Ubuntu/Linaro 4.7.0-1ubuntu1) version 4.7.0 (x86_64-linux-gnu)
    compiled by GNU C version 4.7.0, GMP version 5.0.2, MPFR version 3.1.0-p3,
MPC version 0.9
GGC heuristics: --param ggc-min-expand=98 --param ggc-min-heapsize=127391
Compiler executable checksum: ebe4fd45b8b9c3fd6dc0cfc73cec8259
test.cpp: In lambda function:
test.cpp:14:32: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.7/README.Bugs> for instructions.
Preprocessed source stored into /tmp/ccmDN5TQ.out file, please attach this to
your bugreport.