* Makefile.in (build/genattrtab.o): Depend on vecprim.h.
	* genattrtab.c: Include vecprim.h.
	(cached_attrs, cached_attr_count, attrs_seen_once,
	attrs_seen_more_than_once, attrs_to_cache, attrs_cached_inside,
	attrs_cached_after): New variables.
	(find_attrs_to_cache): New function.
	(FLG_BITWISE, FLG_AFTER, FLG_INSIDE, FLG_OUTSIDE_AND): Define.
	(write_test_expr): Add attrs_cached argument, return it too,
	attempt to cache non-const attributes used more than once in
	a single case handling.
	(write_attr_get): Use find_attrs_to_cache, for caching candidates
	emit cached_* variables.  Adjust write_attr_set callers.
	(write_attr_set): Add attrs_cached attribute, use find_attrs_to_cache
	to find attributes that should be cached in this block.  Adjust
	write_test_expr callers.
	(write_attr_case): Clear attrs_to_cache.  Adjust write_attr_set
	callers.
	(make_automaton_attrs): Adjust write_test_expr caller.

From-SVN: r161094