85a2bfab6c
compiler: eliminate boilerplate by centralizing info in declarative INSN: syntax
2009-09-02 06:22:37 -05:00
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
4b7ba38aab
compiler.cfg: virtual registers are integers now, and representations are stored off to the side. Fix bug in representation selection that would manifest if a value was used as a float and a fixnum in different branches; cannot globally unbox float in this case
2009-08-08 04:02:18 -05:00
725280d424
Split off the notion of a register representation from a register class
2009-08-07 17:44:50 -05:00
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
3a4916462b
compiler.cfg.dce: now performs three passes over the CFG to fix a phase ordering issue
2009-07-02 03:17:19 -05:00
513a600664
compiler.cfg.dce: minor renamings
2009-07-02 02:41:10 -05:00
fcfd7f01a3
Dead code elimination eliminates some dead allocations
2009-07-02 02:30:46 -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
1db81da264
Refactoring low-level optimizer to support stack analysis pass
2009-05-26 19:31:19 -05:00
8b022f926c
compiler.cfg.dce: new global dead code elimination pass
2009-05-26 02:58:57 -05:00
Slava Pestov
Daniel Ehrenberg