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
608fb054f2
compiler.cfg: Some code cleanups, update stack-analysis and phi-insertion to work on CFGs with critical edges
2009-07-12 22:22:46 -05:00
6810b922ee
compiler.cfg: move back-edge? word from stack-analysis to top-level vocab
2009-07-09 23:13:30 -05:00
fc595a7075
Fix possible infinite loop in skip-empty-blocks and remove redundant test in compiler.cfg.useless-conditionals
2009-06-30 22:43:02 -05:00
f412bbc6d6
Change branch splitting around a bit, rename useless-blocks to useless-conditionals and rewrite it
2009-06-30 22:11:15 -05:00
2dcdfa2d8e
compiler.cfg: add a declaration to fix tools.deploy.test.11
2009-06-09 03:36:16 -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
dadb9a2c50
Add phi elimination pass
2009-05-27 18:58:01 -05:00
e58fcd485c
Working on global optimizations
2009-05-19 17:28:13 -05:00
445e353337
Optimize away useless jumps
2008-11-02 23:09:31 -06:00
3834eaeb05
Don't generate GC checks if the allocation instruction is optimized out
2008-11-02 01:50:48 -06:00
73d01452cb
Replace ##gc with a gc flag in the basic block
2008-10-22 18:38:30 -05:00
c0d89b061e
Fixing register allocator prspilling
2008-10-19 01:10:21 -05:00
f436fd0c0f
Merging in new codegen
2008-10-07 16:16:50 -05:00
Slava Pestov