Commit Graph

3 Commits (3d92117ef147c40b355dbbdf04c0588a3fc6824c)

Author SHA1 Message Date
Slava Pestov 2a63722c91 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 968a9bb666 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 dd8152f7bb Add phi elimination pass 2009-05-27 18:58:01 -05:00