gcc/

	PR lto/64075
	* tree-streamer-in.c (unpack_ts_function_decl_value_fields): Use
	proper size for function_code bitfield.
	(pack_ts_function_decl_value_fields): Likewise.

gcc/testsuite/

	PR lto/64075
	* gcc.dg/pr64075.c: New.

From-SVN: r218083