PR c++/16115
* stor-layout.c (relayout_decl): New fn.
* tree.h: Declare it.
(DECL_BY_REFERENCE): New macro.
* cp/call.c (type_passed_as): Make the invisible reference type
__restrict.
* cp/cp-gimplify.c (gimplify_cleanup_stmt): Rename to
cp_genericize_r. Handle invisible reference lowering.
(is_invisiref_parm): New fn.
(cp_genericize): Adjust the types of invisible reference parms.
Don't repeat the walk for clones.
* cp/decl.c (store_parm_decls): Don't generate any code for clones.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@84895 138bc75d-0d04-0410-961f-82ee72b054a4