c++/10486: Regression (ICE) in 3.3 branch due to recent patch.

[carlo@alinoe.com]

>Number:         10486
>Category:       c++
>Synopsis:       Regression (ICE) in 3.3 branch due to recent patch.
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Fri Apr 25 00:06:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Carlo Wood
>Release:        GNU C++ version 3.3 20030424 (prerelease)
>Organization:
>Environment:
i686-pc-linux-gnu
>Description:
After updating my CVS source tree at 20030424,
while the last update was from around 20030404,
I ran into a new ICE.

This is a regression, all previous versions compile
this fine, as did version 3.3 20030404.

Full output:

g++-cvs-3.3 -v -c troep.cc
Reading specs from /usr/local/gcc-cvs-3.3/lib/gcc-lib/i686-pc-linux-gnu/3.3/specs
Configured with: /usr/src/gcc/gcc-cvs-3.3/configure --prefix=/usr/local/gcc-cvs-3.3 --enable-shared --with-gnu-as --with-gnu-ld --enable-languages=c++ --enable-debug --enable-threads
Thread model: posix
gcc version 3.3 20030424 (prerelease)
 /usr/local/gcc-cvs-3.3/lib/gcc-lib/i686-pc-linux-gnu/3.3/cc1plus -quiet -v -D__GNUC__=3 -D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=0 -D_GNU_SOURCE troep.cc -D__GNUG__=3 -quiet -dumpbase troep.cc -auxbase troep -version -o /tmp/ccpOnYTr.s
GNU C++ version 3.3 20030424 (prerelease) (i686-pc-linux-gnu)
        compiled by GNU C version 3.3 20030424 (prerelease).
GGC heuristics: --param ggc-min-expand=55 --param ggc-min-heapsize=48296
ignoring nonexistent directory "/usr/local/gcc-cvs-3.3/i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/gcc-cvs-3.3/include/c++/3.3
 /usr/local/gcc-cvs-3.3/include/c++/3.3/i686-pc-linux-gnu
 /usr/local/gcc-cvs-3.3/include/c++/3.3/backward
 /usr/local/include
 /usr/local/gcc-cvs-3.3/include
 /usr/local/gcc-cvs-3.3/lib/gcc-lib/i686-pc-linux-gnu/3.3/include
 /usr/include
End of search list.
troep.cc: In constructor `A<_Tp, _Alloc>::A(typename
   _Alloc::rebind<_Tp>::other&) [with _Tp = int, _Alloc = B<int>]':
troep.cc:19: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
>How-To-Repeat:
Compile the following code snippet:


template<typename _Tp, typename _Alloc>
  struct A
  {
    typedef typename _Alloc::template rebind<_Tp>::other allocator_type;
    A(allocator_type const& __a = allocator_type()) { }
  };

template<typename T>
  struct B
  {
    template <typename T1>
      struct rebind
      {
        typedef B<T1> other;
      };
    ~B() { }
  };

A<int, B<char>::rebind<int>::other> x;
>Fix:
Among others, removing the "~B() { }" helps.
>Release-Note:
>Audit-Trail:
>Unformatted: