factor

Author	SHA1	Message	Date
Slava Pestov	43335d9c36	Intervals now use a special singleton for the full interval to eliminate FP math in the common case; fix a bug in value-info<=	2008-11-11 08:30:14 -06:00
Slava Pestov	f2a5a30c6f	New front-end and high-level optimizer lands	2008-08-12 03:22:45 -05:00