(expand_builtin, case BUILT_IN_AGGREGATE_INCOMING_ADDRESS): New case.

(expand_assignment, expand_expr, emit_push_insn, store_expr):
Insert calls to chkr_check_addr, chkr_set_right, and chkr_copy_bitmap
when -fcheck-memory-usage.
(get_push_address, get_memory_usage_from_modifier): New functions.

From-SVN: r14611