Commit Graph

7 Commits (7f4b7d66a32358a1a5736c20c76608f4e9a51a1b)

Author SHA1 Message Date
Slava Pestov c211c3e84e FFI rewrite part 1: split up ##alien-invoke and friends into smaller instructions 2010-05-09 21:36:52 -04:00
Slava Pestov 5197aca215 compiler.cfg.dataflow-analysis: when intersecting sets, treat uninitialized sets as universal rather than empty; reduces number of stack instructions generated by 1% 2009-08-20 18:15:41 -05:00
Daniel Ehrenberg d35e1eb76c Fixing write-barrier elimination; adding bb as a parameter to join-sets in dataflow analysis 2009-08-12 23:52:29 -05:00
Slava Pestov d0c393aa60 compiler.cfg: new system to track when results of analyses need to be recomputed (reverse post order, linear order, predecessors, dominance, loops). Passes can now call needs-predecessors, needs-dominance, needs-loops at the beginning, and cfg-changed, predecessors-changd at the end. Linearization order now takes loop nesting into account, and linear scan now uses linearization order instead of RPO. 2009-08-08 20:02:56 -05:00
Slava Pestov 1e5ce41364 Fix bootstrap 2009-07-22 03:26:27 -05:00
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 e6a323dfaa compiler.cfg.dataflow-analysis: iterative dataflow analysis framework 2009-07-22 02:06:35 -05:00