* ipa-reference.c (ipa_obstack): Remove.
(local_info_obstack, global_info_obstack): New.
(add_static_var): We now handle variables only.
(mark_address_taken, mark_load, mark_store): New functions based on ...
(check_operand): ... remove.
(get_asm_stmt_operands): Rename to ...
(check_asm_memory_clobber): ... this. Look only for memory clobber.
(scan_stmt_for_static_refs): Rewrite.
(scan_op_for_static_refs): Rename to ...
(scan_initializer_for_static_refs): do not look for VAR_DECL
initializers; stop recursion on types and decls.
(ipa_init): Use proper obstacks.
(analyze_variable): Use scan_initializer_for_static_refs.
(init_function_info): Use local obstack.
(analyze_function): Simplify.
(add_new_function): We don't need visited_nodes obstack.
(generate_summary): Use proper obstacks; cleanup after propagation.
From-SVN: r140415
