r151061 - in /trunk/gcc: cp/ChangeLog cp/call.c...

[jason@gcc.gnu.org]

Author: jason
Date: Mon Aug 24 21:31:54 2009
New Revision: 151061

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=151061
Log:
	PR c++/41109
	PR c++/41110
	PR c++/41134
	* cp-tree.h (DECL_ODR_USED): New macro.
	(struct lang_decl_base): Add odr_used flag.
	* decl.c (duplicate_decls): Propagate it.  Use it for error.
	* pt.c (register_specialization): Use it for error.
	* decl2.c (mark_used): Use it as gating flag rather than TREE_USED.
	(cp_write_global_declarations): Use it for error.
	(tree_used_ok): Remove.
	* cp-tree.h: Remove tree_used_ok.
	* call.c (build_call_a): Don't call it.
	* init.c (build_offset_ref): Likewise.

Added:
    trunk/gcc/testsuite/g++.dg/warn/Wunused-17.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/cp/cp-tree.h
    trunk/gcc/cp/decl.c
    trunk/gcc/cp/decl2.c
    trunk/gcc/cp/init.c
    trunk/gcc/cp/pt.c
    trunk/gcc/testsuite/ChangeLog