factor

Author	SHA1	Message	Date
Slava Pestov	21a012e3d7	compiler.cfg: Major restructuring -- do not compute liveness before local optimization, and instead change local optimizations to be more permissive of undefined values. Now, liveness is only computed once, after phi elimination and before register allocation. This means liveness analysis does not need to take phi nodes into account and can now use the new compiler.cfg.dataflow-analysis framework	2009-07-22 03:08:28 -05:00
Slava Pestov	2d231f066a	GC checks now save and restore registers	2009-06-02 18:23:47 -05:00
Slava Pestov	692b479302	Split off local-optimization combinator into compiler.cfg.local, factor out CFG -> MR into compiler.cfg.mr, split off GC check insertion into a new compiler.cfg.gc-checks pass	2009-05-31 12:20:46 -05:00