3 Commits (f585ba4ba31fb3090889825c4cc98bd4151d7fa2)

Author	SHA1	Message	Date
Doug Coleman	407377fc98	rename peek -> last and update all usages	2009-05-25 16:38:33 -05:00
Slava Pestov	5f4b247072	Propagation pass now uses a stack of hashtables for predicated constraints instead of cloning a hashtable. New strategy for recursive propagation; now converges with fewer iterations. ~15 sec bootstrap time improvement	2008-11-11 08:49:00 -06:00
Slava Pestov	f2a5a30c6f	New front-end and high-level optimizer lands	2008-08-12 03:22:45 -05:00