gcc/
	* Makefile.in (READ_MD_H): Add $(HASHTAB_H).
	(build/genconstants.o): Depend on $(READ_MD_H) gensupport.h.
	* genconstants.c: Include read-md.h.
	* read-rtl.c (md_constants): Move to read-md.c.
	(md_name): Move to read-md.h.
	(initialize_iterators): Use leading_string_hash instead of def_hash
	and leading_string_eq_p instead of def_name_eq_p.
	(read_name): Move to read-md.c.
	(def_hash, def_name_eq_p): Delete.
	(read_constants, traverse_md_constants): Move to read-md.c.
	* rtl.h (md_constant, traverse_md_constants): Move to read-md.h.
	* read-md.h: Include hashtab.h.
	(md_name): Moved from read-rtl.c.
	(md_constant): Moved from read-md.h.
	(leading_string_hash, leading_string_eq_p, read_name)
	(read_constants, traverse_md_constants): Declare.
	* read-md.c (md_constants): Moved from read-rtl.c.
	(leading_string_hash, leading_string_eq_p): New functions.
	(read_name, read_constants, traverse_md_constants): Moved from
	read-rtl.c.

From-SVN: r160575