45 lines
1.4 KiB
Factor
45 lines
1.4 KiB
Factor
! Copyright (C) 2008, 2009 Slava Pestov.
|
|
! See http://factorcode.org/license.txt for BSD license.
|
|
USING: kernel accessors namespaces make locals
|
|
cpu.architecture
|
|
compiler.cfg
|
|
compiler.cfg.rpo
|
|
compiler.cfg.liveness
|
|
compiler.cfg.instructions
|
|
compiler.cfg.linear-scan.numbering
|
|
compiler.cfg.linear-scan.live-intervals
|
|
compiler.cfg.linear-scan.allocation
|
|
compiler.cfg.linear-scan.allocation.state
|
|
compiler.cfg.linear-scan.assignment
|
|
compiler.cfg.linear-scan.resolve ;
|
|
IN: compiler.cfg.linear-scan
|
|
|
|
! References:
|
|
|
|
! Linear Scan Register Allocation
|
|
! by Massimiliano Poletto and Vivek Sarkar
|
|
! http://www.cs.ucla.edu/~palsberg/course/cs132/linearscan.pdf
|
|
|
|
! Linear Scan Register Allocation for the Java HotSpot Client Compiler
|
|
! by Christian Wimmer
|
|
! and http://www.ssw.uni-linz.ac.at/Research/Papers/Wimmer04Master/
|
|
|
|
! Quality and Speed in Linear-scan Register Allocation
|
|
! by Omri Traub, Glenn Holloway, Michael D. Smith
|
|
! http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.34.8435
|
|
|
|
:: (linear-scan) ( cfg machine-registers -- )
|
|
cfg compute-live-sets
|
|
cfg number-instructions
|
|
cfg compute-live-intervals machine-registers allocate-registers
|
|
cfg assign-registers
|
|
cfg resolve-data-flow
|
|
cfg check-numbering ;
|
|
|
|
: linear-scan ( cfg -- cfg' )
|
|
[
|
|
dup machine-registers (linear-scan)
|
|
spill-counts get >>spill-counts
|
|
cfg-changed
|
|
] with-scope ;
|