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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug lto/54728] [4.8 regression] ICE in input_gimple_stmt, at gimple-streamer-in.c:254
Date: Fri, 16 Nov 2012 03:36:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D54728

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-11-16 0=
3:36:35 UTC ---
here is the most reduced testcase.
cat > foo1.cc << EOF
template<typename _CharT>     struct basic_string
{
  struct _Rep   {    _CharT*  _M_refdata() throw()  {  return 0; }        };
  _CharT * dst;
  static _Rep&       _S_empty_rep();
  basic_string()       : dst(_S_empty_rep()._M_refdata())  {  }
};
extern template class basic_string<char>;
struct basic_ostringstream    {
  basic_string<char>  _M_stringbuf;
};
basic_ostringstream foo1;
EOF
sed s/foo1/foo2/ < foo1.cc > foo2.cc
g++ -Wfatal-errors   t1.cc t2.cc  -fpic  -flto -c
g++ -Wfatal-errors   t1.o t2.o -shared -flto -o t.so -flto-partition=3Dnone
In member function =E2=80=98_M_refdata=E2=80=99:
lto1: internal compiler error: in input_gimple_stmt, at
gimple-streamer-in.c:255
0xc565b6 input_gimple_stmt
....