r155143 - in /trunk: gcc/ChangeLog gcc/cgraph.c...

[jakub at gcc dot gnu dot org]

Author: jakub
Date: Thu Dec 10 21:58:49 2009
New Revision: 155143

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155143
Log:
	PR c++/42317
	* cgraph.h (struct cgraph_node): Add same_comdat_group field.
	* cgraph.c (cgraph_remove_node): Unchain node from same_comdat_group
	circular list.
	(cgraph_node_can_be_local_p): Return false for DECL_COMDAT with
	node->same_comdat_group.
	* ipa.c (cgraph_remove_unreachable_nodes): For any reachable node
	mark all its same_comdat_group nodes as also reachable.
	(cgraph_externally_visible_p): Return true even if any of
	same_comdat_group nodes has address taken.
	* lto-cgraph.c (lto_output_node): Stream out same_comdat_group.
	(output_cgraph): Ensure other same_comdat_group nodes are also
	included.
	(input_node): Stream in same_comdat_group.
	(input_cgraph_1): Fix up same_comdat_group fields from references
	to pointers.
	* cgraphunit.c (cgraph_analyze_functions): Mark all other
	same_comdat_group nodes as reachable.
	(cgraph_mark_functions_to_output): For each node->process process
	also other same_comdat_group nodes.
	* ipa-inline.c (cgraph_clone_inlined_nodes): Don't reuse nodes
	with same_comdat_group non-NULL.
	(cgraph_mark_inline_edge): Likewise.

	* decl2.c (cp_write_global_declarations): Clear DECL_EXTERNAL
	also on all other functions in the same comdat group.
	* optimize.c (maybe_clone_body): Also optimize virtual implicit
	dtors.  For virtual comdat dtors tell cgraph that base and deleting
	dtor are in the same comdat group.

	* config/abi/pre/gnu.ver: Don't export certain base dtors that
	weren't previously exported.

	* g++.dg/opt/dtor2.C: New test.
	* g++.dg/opt/dtor2.h: New file.
	* g++.dg/opt/dtor2-aux.cc: New file.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/config/abi/pre/gnu.ver

Changes in other areas also in this revision:
Added:
    trunk/gcc/testsuite/g++.dg/opt/dtor2-aux.cc
    trunk/gcc/testsuite/g++.dg/opt/dtor2.C
    trunk/gcc/testsuite/g++.dg/opt/dtor2.h
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cgraph.c
    trunk/gcc/cgraph.h
    trunk/gcc/cgraphunit.c
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/decl2.c
    trunk/gcc/cp/optimize.c
    trunk/gcc/ipa-inline.c
    trunk/gcc/ipa.c
    trunk/gcc/lto-cgraph.c
    trunk/gcc/testsuite/ChangeLog