d35e1eb76c
Fixing write-barrier elimination; adding bb as a parameter to join-sets in dataflow analysis
2009-08-12 23:52:29 -05:00
d913d7331f
compiler.cfg: Minor optimization. Instructions can now only ever produce a single value; this eliminates 1array constructions and some iterations
2009-07-28 12:29:07 -05:00
1878b0dc32
compiler.cfg.liveness: fix liveness computation in case where instruction uses a register it defines
2009-07-28 06:45:02 -05:00
a32cbdd231
compiler.cfg.coalescing: more work done
2009-07-27 00:31:21 -05:00
89db2e745d
Move liveness back to compiler.cfg.liveness, fix a corner-case where it didn't work on some forms of non-SSA code
2009-07-22 06:07:28 -05:00
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
fd9a353fd6
Move conjoin-at from compiler.cfg.liveness to sets
2009-07-21 03:02:06 -05:00
6d46bf623c
compiler.cfg.liveness: update for new ##phi node representation
2009-07-02 17:28:02 -05:00
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
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
dbf18927b9
compiler.cfg.liveness: correct handling of phi nodes
2009-05-28 17:54:27 -05:00
ce25e0ad8d
New local-optimization combinator removes some boilerplate
2009-05-26 19:56:56 -05:00
1db81da264
Refactoring low-level optimizer to support stack analysis pass
2009-05-26 19:31:19 -05:00
Daniel Ehrenberg
Slava Pestov
Slava Pestov