2005-11-17  Mircea Namolaru  <namolaru@il.ibm.com>

	* ipa-cha.c: New file. Contains IPA CHA specific functionality.
        * ipa-prop.h: Add declaration for cha_driver.
        * tree.h: Added a mew macro, TYPE_OBJ_CREATED and a new field
	cha-inheritance in tree_binfo.
        * print-tree.c: (print_node): Support for TYPE_OBJ_CREATED.
        * Makefile.in: Add ipa-cha.c.
        * langhooks.h: Added a new hook, cha_is_ctor_dtor.
        Added an additional argument to fold_obj_type_ref.
        * langhooks-def.h: Support for the new hook.
        * tree-ssa-ccp.c: (fold_stmt): Add the additional argument to the
        invocation of fold_obj_type_ref.
        * cp/cp-lang.h: Map the new hook.
        * cp/cp-tree.h: Declaration for cp_cha_is_ctor_dtor.
        Added a new argument to the declaration of fold_obj_type_ref.
        * cp/class.c: (cp_cha_is_ctor_dtor): New function.
        (get_array_entry): New function.
        (cp_fold_obj_virtuals): New function.
	(cp_fold_obj_type_ref): Add an additional argument decl_type.
	Extend its functionality.
        * common.opt: Add ipa-cha flag.
        * timevar.def: Add IPA CHA optimization.
        * passes.c: Add IPA CHA pass.
        * tree-pass.h: Same.