[Bug c++/26343] New: compiler segfaults on typename

["julian dot rueth at informatik dot uni-ulm dot de" <gcc-bugzilla at gcc dot gnu dot org>]

gcc 3.4.3 (and also 3.4.4) segfault on x86_64; segfault doesn't occur on a i686
using gcc 3.3.4.
Please contact me if you need any further detail.

$ gcc -v -save-temps main.cpp 
Reading specs from /usr/lib/gcc/x86_64-pc-linux-gnu/3.4.3/specs
Configured with: /var/tmp/portage/gcc-3.4.3-r1/work/gcc-3.4.3/configure
--enable-version-specific-runtime-libs --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/3.4.3
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/3.4.3/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/3.4.3
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/3.4.3/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/3.4.3/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/3.4.3/include/g++-v3
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --disable-altivec
--enable-nls --without-included-gettext --with-system-zlib --disable-checking
--disable-werror --disable-libunwind-exceptions --enable-multilib
--enable-java-awt=gtk --enable-languages=c,c++,java --enable-shared
--enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu
Thread model: posix
gcc version 3.4.3 20041125 (Gentoo 3.4.3-r1, pie-8.7.7)
 /usr/libexec/gcc/x86_64-pc-linux-gnu/3.4.3/cc1plus -E -quiet -v -D_GNU_SOURCE
main.cpp -mtune=k8 -o main.ii
#include "..." search starts here:
#include <...> search starts here:
 /usr/lib/gcc/x86_64-pc-linux-gnu/3.4.3/include/g++-v3
 /usr/lib/gcc/x86_64-pc-linux-gnu/3.4.3/include/g++-v3/x86_64-pc-linux-gnu
 /usr/lib/gcc/x86_64-pc-linux-gnu/3.4.3/include/g++-v3/backward
 /usr/local/include
 /usr/lib/gcc/x86_64-pc-linux-gnu/3.4.3/include
 /usr/lib/gcc/x86_64-pc-linux-gnu/3.4.3/../../../../x86_64-pc-linux-gnu/include
 /usr/include
End of search list.
 /usr/libexec/gcc/x86_64-pc-linux-gnu/3.4.3/cc1plus -fpreprocessed main.ii
-quiet -dumpbase main.cpp -mtune=k8 -auxbase main -version -o main.s
GNU C++ version 3.4.3 20041125 (Gentoo 3.4.3-r1, pie-8.7.7)
(x86_64-pc-linux-gnu)
        compiled by GNU C version 3.4.3 20041125 (Gentoo 3.4.3-r1, pie-8.7.7).
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
main.cpp: In member function `void A::foo()':
main.cpp:4: internal compiler error: Segmentation fault

$ cat main.ii 
# 1 "main.cpp"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "main.cpp"
class A {
      typedef void T;
      void foo(){
        foo(typename A::T());
      }
};

$ gcc -save-temps main2.cpp 
main2.cpp: In member function `void A::foo()':
main2.cpp:4: error: invalid use of void expression

$ cat main2.ii
# 1 "main2.cpp"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "main2.cpp"
class A {
      typedef void T;
      void foo(){
        foo(A::T());
      }
};


-- 
           Summary: compiler segfaults on typename
           Product: gcc
           Version: 3.4.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: julian dot rueth at informatik dot uni-ulm dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26343