Convert x86_(push|pop) operations to be explicitly limited to 32-bit and 64-bit values.
Convert x86_(push|pop) operations to be explicitly limited to 32-bit and 64-bit values.

stoklund/cretonne,sunfishcode/cretonne,stoklund/cretonne,sunfishcode/cretonne,sunfishcode/cretonne,stoklund/cretonne