factor/basis/compiler/cfg/optimizer/optimizer.factor

! Copyright (C) 2008, 2010 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: compiler.cfg.tco
compiler.cfg.useless-conditionals
compiler.cfg.branch-splitting
compiler.cfg.block-joining
compiler.cfg.height
compiler.cfg.ssa.construction
compiler.cfg.alias-analysis
compiler.cfg.value-numbering
compiler.cfg.copy-prop
compiler.cfg.dce ;
IN: compiler.cfg.optimizer

: optimize-cfg ( cfg -- cfg' )
    optimize-tail-calls
    delete-useless-conditionals
    split-branches
    join-blocks
    normalize-height
    construct-ssa
    alias-analysis
    value-numbering
    copy-propagation
    eliminate-dead-code ;
New GC checks work in progress 2010-04-27 10:51:00 -04:00			`! Copyright (C) 2008, 2010 Slava Pestov.`
CFG optimizer 2008-10-22 19:41:37 -04:00			`! See http://factorcode.org/license.txt for BSD license.`
compiler.cfg: remove unused 'reps' slot from compiler.cfg, and re-organize things in preparation for SSA register allocation 2010-04-28 04:47:38 -04:00			`USING: compiler.cfg.tco`
Change branch splitting around a bit, rename useless-blocks to useless-conditionals and rewrite it 2009-06-30 23:11:15 -04:00			`compiler.cfg.useless-conditionals`
			`compiler.cfg.branch-splitting`
compiler.cfg.block-joining: join basic blocks connected by a single edge to improve effectiveness of local optimizations 2009-07-16 03:17:58 -04:00			`compiler.cfg.block-joining`
Fewer unnecessary dependence edges between stack operations, implemented by reviving stack height normalization. Now, 40% of spills and reloads are eliminated in total 2010-02-24 15:20:43 -05:00			`compiler.cfg.height`
compiler.cfg: Rename ssa to ssa.construction, coalescing to ssa.destruction 2009-07-28 10:34:08 -04:00			`compiler.cfg.ssa.construction`
Value numbering 2008-10-22 22:59:07 -04:00			`compiler.cfg.alias-analysis`
			`compiler.cfg.value-numbering`
compiler.cfg.copy-prop: Global copy propagation 2009-07-24 06:30:46 -04:00			`compiler.cfg.copy-prop`
compiler.cfg: fix major facepalm with write barrier elimination 2010-09-06 00:39:45 -04:00			`compiler.cfg.dce ;`
CFG optimizer 2008-10-22 19:41:37 -04:00			`IN: compiler.cfg.optimizer`

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 14:11:34 -04:00			`: optimize-cfg ( cfg -- cfg' )`
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 21:02:56 -04:00			`optimize-tail-calls`
			`delete-useless-conditionals`
			`split-branches`
			`join-blocks`
Fewer unnecessary dependence edges between stack operations, implemented by reviving stack height normalization. Now, 40% of spills and reloads are eliminated in total 2010-02-24 15:20:43 -05:00			`normalize-height`
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 21:02:56 -04:00			`construct-ssa`
			`alias-analysis`
			`value-numbering`
			`copy-propagation`
compiler.cfg: fix major facepalm with write barrier elimination 2010-09-06 00:39:45 -04:00			`eliminate-dead-code ;`