* Makefile.in (cgraphbuild.o): Add dependency on ipa-utils.h

	* Makefile.in (cgraphbuild.o): Add dependency on ipa-utils.h
	* cgraphbuild.c: Include ipa-utils.h
	(record_reference_ctx): New struct.
	(record_reference): Simplify to work on initializers; not statements.
	(mark_address, mark_load, mark_store): New.
	(build_cgraph_edges): Simplify using walk_stmt_load_store_addr_ops;
	walk PHI nodes too.
	(record_references_in_initializer): Update use of record_reference.
	(rebuild_cgraph_edges): Simplify using walk_stmt_load_store_addr_ops;
	walk PHI nodes too.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@159032 138bc75d-0d04-0410-961f-82ee72b054a4