factor

Author	SHA1	Message	Date
Slava Pestov	90daf6d03d	compiler.cfg: change representation of ##phi nodes. The input slot of ##phi nodes is now an assoc mapping predecessors to values, rather than a sequence of values. This ensures that optimization which delete predecessors can be implemented	2009-07-02 17:10:50 -05:00
Slava Pestov	e04df76f60	Various codegen improvements: - new-insn word to construct instructions - cache RPO in the CFG - re-organize low-level optimizer so that MR is built after register allocation - register allocation now stores instruction numbers in the instructions themselves - split defs-vregs into defs-vregs and temp-vregs	2009-05-29 13:11:34 -05:00
Slava Pestov	dadb9a2c50	Add phi elimination pass	2009-05-27 18:58:01 -05:00