> Naming suggestion: we already use cpp_ as prefix for the C preprocessor.
> Could we please not use it for C++, given that tree is used by so
> many clients for just about anything. cxx_ is a good alternative.
CXX is fine with me. I updated by local copy.
Honza
>
> > unsigned final : 1;
> > - /* 13 unused bits. */
> > + /* 11 unused bits. */
> > };
> >
> > extern tree decl_debug_expr_lookup (tree);
> > @@ -3483,6 +3487,18 @@ extern vec<tree, va_gc> **decl_debug_arg
> > #define DECL_FUNCTION_VERSIONED(NODE)\
> > (FUNCTION_DECL_CHECK (NODE)->function_decl.versioned_function)
> >
> > +/* In FUNCTION_DECL, this is set if this function is a C++ constructor.
> > + Devirtualization machinery uses this knowledge for determing type of the
> > + object constructed. Also we assume that constructor address is not
> > + important. */
> > +#define DECL_CPP_CONSTRUCTOR_P(NODE)\
>
> Same here.
>
> > + (FUNCTION_DECL_CHECK (NODE)->decl_with_vis.cpp_constructor)
> > +
> > +/* In FUNCTION_DECL, this is set if this function is a C++ destructor.
> > + Devirtualization machinery uses this to track types in destruction. */
> > +#define DECL_CPP_DESTRUCTOR_P(NODE)\
> > + (FUNCTION_DECL_CHECK (NODE)->decl_with_vis.cpp_destructor)
> > +
>
> Likewise.
>
> > /* In FUNCTION_DECL that represent an virtual method this is set when
> > the method is final. */
> > #define DECL_FINAL_P(NODE)\
> > Index: cp/cp-tree.h
> > ===================================================================
> > --- cp/cp-tree.h (revision 201977)
> > +++ cp/cp-tree.h (working copy)
> > @@ -2121,9 +2121,10 @@ struct GTY((variable_size)) lang_decl {
> > #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
> > (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE))
> >
> > -/* For FUNCTION_DECLs: nonzero means that this function is a constructor.
> > */
> > +/* For FUNCTION_DECLs and TEMPLATE_DECLs: nonzero means that this function
> > + is a constructor. */
> > #define DECL_CONSTRUCTOR_P(NODE) \
> > - (LANG_DECL_FN_CHECK (NODE)->constructor_attr)
> > + DECL_CPP_CONSTRUCTOR_P (STRIP_TEMPLATE (NODE))
> >
> > /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
> > object. */
> > @@ -2152,9 +2153,10 @@ struct GTY((variable_size)) lang_decl {
> > #define DECL_MOVE_CONSTRUCTOR_P(NODE) \
> > (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE))
> >
> > -/* Nonzero if NODE is a destructor. */
> > +/* Nonzero if NODE (a FUNCTION_DECL or TEMPLATE_DECL)
> > + is a destructor. */
> > #define DECL_DESTRUCTOR_P(NODE) \
> > - (LANG_DECL_FN_CHECK (NODE)->destructor_attr)
> > + DECL_CPP_DESTRUCTOR_P (STRIP_TEMPLATE (NODE))
> >
> > /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
> > specialized in-charge constructor, in-charge deleting constructor,
