Makefile.in (build/genattrtab.o): Depend on vecprim.h.
* 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.