re PR lto/65475 (ICE in odr_vtable_hasher::equal (Segmentation fault))

	PR ipa/65475
	* ipa-devirt.c: Include demangle.h
	(odr_type_d): Add field rtti_broken.
	(odr_subtypes_equivalent_p): Do not require name to match.
	(compare_virtual_tables): Fix typo; if type already has ODR violation,
	bypass the tests; be ready for function referneces in vtables that are
	not DECL_VIRTUAL; make warnings to be OPT_Wodr.
	(warn_odr): Give up for nameless types.
	(warn_types_mismatch): Report mismatch in mangled names;
	report mismatch in anonymous namespaces; look into component types to
	give useful error; report when mismatch is dragged in from other ODR
	type.
	(odr_types_equivalent_p): Match types for being polymorphic; avoid
	duplicated diagnostics.
	(add_type_duplicate): Reorder checks so more informative ones come
	first; fix typo; do not output "the extra base is defined here" when
	we did not warn.
	(BINFO_N_BASE_BINFOS): Relax sanity check.
	* g++.dg/lto/pr65475b_0.C: New testcase.
	* g++.dg/lto/pr65475b_1.C: New testcase.
	* g++.dg/lto/pr65475c_0.C: New testcase.
	* g++.dg/lto/pr65475c_1.C: New testcase.

From-SVN: r221582

gcc/ChangeLog

-2015-03-22  Martin Liska  <mliska@suse.cz>
+2015-03-22  Jan Hubicka  <hubicka@ucw.cz>
+
+	PR ipa/65475
+	* ipa-devirt.c: Include demangle.h
+	(odr_type_d): Add field rtti_broken.
+	(odr_subtypes_equivalent_p): Do not require name to match.
+	(compare_virtual_tables): Fix typo; if type already has ODR violation,
+	bypass the tests; be ready for function referneces in vtables that are
+	not DECL_VIRTUAL; make warnings to be OPT_Wodr.
+	(warn_odr): Give up for nameless types.
+	(warn_types_mismatch): Report mismatch in mangled names;
+	report mismatch in anonymous namespaces; look into component types to
+	give useful error; report when mismatch is dragged in from other ODR
+	type.
+	(odr_types_equivalent_p): Match types for being polymorphic; avoid
+	duplicated diagnostics.
+	(add_type_duplicate): Reorder checks so more informative ones come
+	first; fix typo; do not output "the extra base is defined here" when
+	we did not warn.
+	(BINFO_N_BASE_BINFOS): Relax sanity check.
 
+2015-03-22  Martin Liska  <mliska@suse.cz>
 	    Jakub Jelinek  <jakub@redhat.com>
 
 	* config/i386/i386.c (def_builtin): Set deferred_isa_values for

gcc/testsuite/ChangeLog

+2015-03-22  Jan Hubicka  <hubicka@ucw.cz>
+
+	PR ipa/65475
+	* g++.dg/lto/pr65475b_0.C: New testcase.
+	* g++.dg/lto/pr65475b_1.C: New testcase.
+	* g++.dg/lto/pr65475c_0.C: New testcase.
+	* g++.dg/lto/pr65475c_1.C: New testcase.
+
 2015-03-21  Tobias Burnus  <burnus@net-b.de>
 
 	* gfortran.dg/coarray_38.f90: New.

gcc/testsuite/g++.dg/lto/pr65475b_0.C

+/* { dg-lto-do link } */
+/* { dg-options "-O2  -Wno-odr" } */
+/* { dg-extra-ld-options { -O2 -Wno-odr -r -nostdlib } } */
+namespace std {
+class exception {};
+class runtime_error : exception {
+  virtual char m_fn1();
+} a;
+}

gcc/testsuite/g++.dg/lto/pr65475b_1.C

+namespace std {
+class exception {
+  virtual char m_fn1();
+};
+class runtime_error : exception {
+} b;
+}

gcc/testsuite/g++.dg/lto/pr65475c_0.C

+/* { dg-lto-do link } */
+/* { dg-lto-options "-O2  -w" } */
+/* { dg-extra-ld-options { -O2 -Wno-odr -r -nostdlib } } */
+namespace std
+{
+template < class > struct char_traits;
+typedef long streamsize;
+template < typename, typename > class basic_streambuf;
+template < typename > class A;
+template < typename, typename > class basic_ostream;
+template < typename _CharT, typename =
+           char_traits < _CharT > >class istreambuf_iterator;
+template < typename _CharT, typename =
+           char_traits < _CharT > >class ostreambuf_iterator;
+template < typename > class ctype;
+template < typename _CharT, typename =
+           istreambuf_iterator < _CharT > >class num_get;
+template < typename _CharT, typename =
+           ostreambuf_iterator < _CharT > >class num_put;
+}
+typedef int _Atomic_word;
+namespace std
+{
+class locale
+{
+    class facet;
+    class _Impl;
+    _Impl *_M_impl;
+};
+class locale::facet
+{
+    _Atomic_word _M_refcount;
+protected:
+    virtual ~ facet ();
+};
+enum _Ios_Fmtflags
+{   _S_boolalpha = 1, _S_dec, _S_fixed = 1 << 2, _S_hex =
+        1 << 3, _S_internal = 1 << 4, _S_left = 1 << 5, _S_oct =
+            1 << 6, _S_right = 1 << 7, _S_scientific = 1 << 8, _S_showbase =
+                1 << 9, _S_showpoint = 1 << 10, _S_showpos = 1 << 11, _S_skipws =
+                    1 << 12, _S_unitbuf = 1 << 13, _S_uppercase = 1 << 14, _S_adjustfield =
+                        _S_left | _S_right | _S_internal, _S_basefield =
+                            _S_dec | _S_oct | _S_hex, _S_floatfield =
+                                _S_scientific | _S_fixed, _S_ios_fmtflags_end = 1 << 16
+};
+enum _Ios_Iostate
+{   _S_goodbit, _S_badbit, _S_eofbit, _S_failbit =
+        1 << 2, _S_ios_iostate_end = 1 << 16
+};
+class ios_base
+{
+    typedef _Ios_Fmtflags fmtflags;
+    typedef _Ios_Iostate iostate;
+    streamsize _M_precision;
+    streamsize _M_width;
+    fmtflags _M_flags;
+    iostate _M_exception;
+    iostate _M_streambuf_state;
+    struct _Callback_list;
+    _Callback_list *_M_callbacks;
+    struct _Words
+    {
+        void *_M_pword;
+        long _M_iword;
+    } _M_word_zero;
+    enum
+    { _S_local_word_size = 8 };
+    _Words _M_local_word[_S_local_word_size];
+    int _M_word_size;
+    _Words *_M_word;
+    locale _M_ios_locale;
+    virtual ~ ios_base ();
+};
+template < typename, typename > class istreambuf_iterator
+{
+    typedef A < char_traits < wchar_t > >istream_type;
+};
+template < typename, typename > class ostreambuf_iterator
+{
+    typedef basic_ostream < wchar_t, char_traits < wchar_t > >ostream_type;
+};
+template < typename, typename > class num_get:locale::facet
+{
+public:
+    typedef istreambuf_iterator < wchar_t > iter_type;
+};
+template < typename, typename > class num_put:locale::facet
+{
+public:
+    typedef ostreambuf_iterator < wchar_t > iter_type;
+};
+template < typename, typename > class basic_ios:ios_base
+{
+    typedef wchar_t char_type;
+    basic_ostream < wchar_t, char_traits < wchar_t > >*_M_tie;
+    char_type _M_fill;
+    bool _M_fill_init;
+    basic_streambuf < wchar_t, char_traits < wchar_t > >*_M_streambuf;
+    ctype < wchar_t > *_M_ctype;
+    num_put < wchar_t > *_M_num_put;
+    num_get < wchar_t > *_M_num_get;
+};
+template < typename, typename > class basic_ostream:virtual basic_ios < wchar_t,
+    char_traits < wchar_t >
+    >
+{
+    typedef basic_ios __ios_type;
+};
+template < typename > class A:basic_ios < wchar_t, int >
+{
+};
+class B:A < char_traits < wchar_t > >, basic_ostream < wchar_t,
+    char_traits < wchar_t > >
+{
+};
+}
+
+class C:
+    std::num_put <
+    wchar_t >
+{
+public:
+    C (int);
+    iter_type
+    do_put_out;
+};
+class
+    D:
+    std::num_get <
+    wchar_t >
+{
+public:
+    D (int);
+    iter_type
+    do_get_in;
+};
+template < typename > void
+install_formatting_facets (std::locale, int p2)
+{
+    (C (p2));
+}
+
+template < typename > void
+install_parsing_facets (std::locale, int p2)
+{
+    (D (p2));
+}
+
+std::locale a;
+int b;
+void
+create_formatting ()
+{
+    install_formatting_facets < wchar_t > (a, b);
+    install_parsing_facets < wchar_t > (a, b);
+}

gcc/testsuite/g++.dg/lto/pr65475c_1.C

+namespace std
+{
+  template < class _CharT > struct char_traits;
+  typedef long streamsize;
+  template < typename _CharT, typename _Traits =
+    char_traits < _CharT > >class basic_ostream;
+  template < typename _CharT, typename _Traits =
+    char_traits < _CharT > >class Trans_NS___cxx11_basic_ostringstream;
+  template < typename _CharT, typename _Traits =
+    char_traits < _CharT > >class istreambuf_iterator;
+  template < typename _CharT, typename _Traits =
+    char_traits < _CharT > >class ostreambuf_iterator;
+}
+namespace std
+{
+  template < typename _CharT, typename _InIter =
+    istreambuf_iterator < _CharT > >class num_get;
+  template < typename _CharT, typename _OutIter =
+    ostreambuf_iterator < _CharT > >class num_put;
+  struct iterator
+  {
+  };
+}
+typedef int _Atomic_word;
+namespace std
+{
+  class locale
+  {
+  public:class facet;
+    class _Impl;
+      template < typename _Facet > locale ( const locale & __other,
+					    _Facet * __f );
+  private:  _Impl * _M_impl;
+  };
+  class locale::facet
+  {
+    mutable _Atomic_word _M_refcount;
+  protected:  explicit facet ( void ) throw (  );
+      virtual ~ facet (  );
+  };
+  enum _Ios_Fmtflags
+  {
+    _S_boolalpha = 1 << 0, _S_dec, _S_fixed = 1 << 2, _S_hex =
+      1 << 3, _S_internal = 1 << 4, _S_left = 1 << 5, _S_oct =
+      1 << 6, _S_right = 1 << 7, _S_scientific = 1 << 8, _S_showbase =
+      1 << 9, _S_showpoint = 1 << 10, _S_showpos = 1 << 11, _S_skipws =
+      1 << 12, _S_unitbuf = 1 << 13, _S_uppercase = 1 << 14, _S_adjustfield =
+      _S_left | _S_right | _S_internal, _S_basefield =
+      _S_dec | _S_oct | _S_hex, _S_floatfield =
+      _S_scientific | _S_fixed, _S_ios_fmtflags_end = 1 << 16
+  };
+  enum _Ios_Openmode
+  {
+    _S_out
+  };
+  enum _Ios_Iostate
+  {
+    _S_goodbit, _S_badbit, _S_eofbit, _S_failbit =
+      1 << 2, _S_ios_iostate_end = 1 << 16
+  };
+  class ios_base
+  {
+  public:typedef _Ios_Fmtflags fmtflags;
+    typedef _Ios_Iostate iostate;
+  protected:  streamsize _M_precision;
+    streamsize _M_width;
+    fmtflags _M_flags;
+    iostate _M_exception;
+    iostate _M_streambuf_state;
+    struct _Callback_list;
+    _Callback_list *_M_callbacks;
+    struct _Words
+    {
+      void *_M_pword;
+      long _M_iword;
+    };
+    _Words _M_word_zero;
+    enum
+    {
+      _S_local_word_size = 8
+    };
+    _Words _M_local_word[_S_local_word_size];
+    int _M_word_size;
+    _Words *_M_word;
+    locale _M_ios_locale;
+      virtual ~ ios_base (  );
+  };
+  template < typename _CharT, typename _Traits > class basic_streambuf;
+template < typename _CharT, typename _Traits > class ostreambuf_iterator:public
+    iterator
+  {
+    typedef basic_ostream < wchar_t, _Traits > ostream_type;
+  };
+  class __ctype_abstract_base:public locale::facet
+  {
+  };
+template < typename _CharT > class ctype:public __ctype_abstract_base
+  {
+  };
+  class Trans_NS___cxx11_numpunct:public locale::facet
+  {
+  };
+template < typename _CharT, typename _InIter > class num_get:public locale::
+    facet
+  {
+  };
+template < typename _CharT, typename _OutIter > class num_put:public locale::
+    facet
+  {
+  public:typedef int char_type;
+    typedef std::ostreambuf_iterator < wchar_t,
+      std::char_traits < wchar_t > >iter_type;
+  };
+template < typename _CharT, typename _Traits > class basic_ios:public
+    ios_base
+  {
+  public:typedef wchar_t char_type;
+    typedef num_get < wchar_t, istreambuf_iterator < wchar_t,
+      _Traits > >__num_get_type;
+  protected:basic_ostream < wchar_t, _Traits > *_M_tie;
+    mutable char_type _M_fill;
+    mutable bool _M_fill_init;
+    basic_streambuf < wchar_t, _Traits > *_M_streambuf;
+    const ctype < wchar_t > *_M_ctype;
+    const num_put < wchar_t, ostreambuf_iterator < wchar_t,
+      _Traits > >*_M_num_put;
+    const __num_get_type *_M_num_get;
+  };
+template < typename _CharT, typename _Traits > class basic_ostream:virtual public basic_ios < wchar_t,
+    _Traits
+    >
+  {
+  };
+}
+typedef enum
+{
+  posix
+}
+value_type;
+static const unsigned int wchar_t_facet = 1 << 1;
+class shared_ptr
+{
+};
+namespace std 
+{
+template < typename _CharT, typename _Traits > class Trans_NS___cxx11_basic_ostringstream:public basic_ostream < wchar_t,
+    _Traits
+    >
+  {
+  public:explicit Trans_NS___cxx11_basic_ostringstream ( void );
+  };
+}
+class base_num_format:public
+  std::num_put <
+  wchar_t >
+{
+public:typedef typename
+    std::num_put <
+    wchar_t >::iter_type
+    iter_type;
+  typedef wchar_t
+    char_type;
+  base_num_format ( unsigned long refs = 0 );
+  iter_type
+    do_put_out;
+  std::ios_base &
+    do_put_ios;
+  char_type
+    do_put_fill;
+  unsigned long long
+    do_put_val;
+  virtual iter_type
+  do_put ( void ) const
+  {
+    return
+    do_real_put ( do_put_out, do_put_ios, do_put_fill, do_put_val );
+  }
+private:template <
+    typename
+    ValueType >
+    iter_type
+  do_real_put ( iter_type out, std::ios_base & ios, char_type fill,
+		ValueType val ) const
+  {
+    switch ( 0 )
+      case posix:
+      {
+	typedef
+	  std::Trans_NS___cxx11_basic_ostringstream <
+	  char_type >
+	  sstream_type;
+	sstream_type
+	  ss;
+      }
+  }
+};
+class
+  base_num_parse:
+  public
+  std::num_get <
+  wchar_t >
+{
+private:};
+class
+  num_format:
+  public
+  base_num_format
+{
+public:typedef wchar_t
+    iter_type;
+  num_format ( shared_ptr lc, unsigned long refs = 0 )
+  {
+  }
+};
+class
+  num_punct_posix:
+  public
+  std::Trans_NS___cxx11_numpunct
+{
+};
+template < typename CharType >
+  std::locale create_formatting_impl ( std::locale const &in, shared_ptr lc )
+{
+  std::locale tmp = std::locale ( tmp, new num_format ( lc ) );
+}
+shared_ptr create_formatting_lc;
+unsigned int create_formatting_type;
+void
+create_formatting ( std::locale const &in )
+{
+  switch ( create_formatting_type )
+    case wchar_t_facet:
+    create_formatting_impl < wchar_t > ( in, create_formatting_lc );
+}