Merge branch 'master' of git://factorcode.org/git/factor

db4
Joe Groff 2009-07-13 12:38:35 -05:00
commit f6f44ede5a
25 changed files with 385 additions and 199 deletions

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@ -40,7 +40,10 @@ test-diamond
[ 1 ] [ 1 get successors>> length ] unit-test
[ t ] [ 1 get successors>> first 3 get eq? ] unit-test
[ T{ ##copy f V int-regs 3 V int-regs 2 } ] [ 3 get instructions>> second ] unit-test
[ T{ ##copy f V int-regs 3 V int-regs 2 } ]
[ 3 get successors>> first instructions>> first ]
unit-test
[ 2 ] [ 4 get instructions>> length ] unit-test
V{

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@ -1,7 +1,7 @@
! Copyright (C) 2009 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors combinators.short-circuit kernel sequences vectors
compiler.cfg.instructions compiler.cfg.rpo ;
compiler.cfg.instructions compiler.cfg.rpo compiler.cfg ;
IN: compiler.cfg.branch-folding
! Fold comparisons where both inputs are the same. Predecessors must be
@ -27,4 +27,4 @@ IN: compiler.cfg.branch-folding
dup fold-branch?
[ fold-branch ] [ drop ] if
] each-basic-block
f >>post-order ;
cfg-changed ;

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@ -0,0 +1,85 @@
USING: accessors assocs compiler.cfg
compiler.cfg.branch-splitting compiler.cfg.debugger
compiler.cfg.predecessors compiler.cfg.rpo fry kernel
tools.test namespaces sequences vectors ;
IN: compiler.cfg.branch-splitting.tests
: get-predecessors ( cfg -- assoc )
H{ } clone [ '[ [ predecessors>> ] keep _ set-at ] each-basic-block ] keep ;
: check-predecessors ( cfg -- )
[ get-predecessors ]
[ compute-predecessors drop ]
[ get-predecessors ] tri assert= ;
: check-branch-splitting ( cfg -- )
compute-predecessors
split-branches
check-predecessors ;
: test-branch-splitting ( -- )
cfg new 0 get >>entry check-branch-splitting ;
V{ } 0 test-bb
V{ } 1 test-bb
V{ } 2 test-bb
V{ } 3 test-bb
V{ } 4 test-bb
test-diamond
[ ] [ test-branch-splitting ] unit-test
V{ } 0 test-bb
V{ } 1 test-bb
V{ } 2 test-bb
V{ } 3 test-bb
V{ } 4 test-bb
V{ } 5 test-bb
0 get 1 get 2 get V{ } 2sequence >>successors drop
1 get 3 get 4 get V{ } 2sequence >>successors drop
2 get 3 get 4 get V{ } 2sequence >>successors drop
[ ] [ test-branch-splitting ] unit-test
V{ } 0 test-bb
V{ } 1 test-bb
V{ } 2 test-bb
V{ } 3 test-bb
V{ } 4 test-bb
0 get 1 get 2 get V{ } 2sequence >>successors drop
1 get 3 get 4 get V{ } 2sequence >>successors drop
2 get 4 get 1vector >>successors drop
[ ] [ test-branch-splitting ] unit-test
V{ } 0 test-bb
V{ } 1 test-bb
V{ } 2 test-bb
0 get 1 get 2 get V{ } 2sequence >>successors drop
1 get 2 get 1vector >>successors drop
[ ] [ test-branch-splitting ] unit-test

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@ -1,37 +1,79 @@
! Copyright (C) 2009 Doug Coleman, Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors combinators.short-circuit kernel math sequences
compiler.cfg.def-use compiler.cfg compiler.cfg.rpo ;
USING: accessors combinators.short-circuit kernel math math.order
sequences assocs namespaces vectors fry arrays splitting
compiler.cfg.def-use compiler.cfg compiler.cfg.rpo
compiler.cfg.renaming compiler.cfg.instructions compiler.cfg.utilities ;
IN: compiler.cfg.branch-splitting
! Predecessors must be recomputed after this
: clone-renamings ( insns -- assoc )
[ defs-vregs ] map concat [ dup fresh-vreg ] H{ } map>assoc ;
: split-branch-for ( bb predecessor -- )
[
: clone-instructions ( insns -- insns' )
dup clone-renamings renamings [
[
<basic-block>
swap
[ instructions>> [ clone ] map >>instructions ]
[ successors>> clone >>successors ]
bi
] keep
] dip
[ [ 2dup eq? [ 2drop ] [ 2nip ] if ] with with map ] change-successors
drop ;
clone
dup rename-insn-defs
dup rename-insn-uses
dup fresh-insn-temps
] map
] with-variable ;
: clone-basic-block ( bb -- bb' )
! The new block gets the same RPO number as the old one.
! This is just to make 'back-edge?' work.
<basic-block>
swap
[ instructions>> clone-instructions >>instructions ]
[ successors>> clone >>successors ]
[ number>> >>number ]
tri ;
: new-blocks ( bb -- copies )
dup predecessors>> [
[ clone-basic-block ] dip
1vector >>predecessors
] with map ;
: update-predecessor-successor ( pred copy old-bb -- )
'[
[ _ _ 3dup nip eq? [ drop nip ] [ 2drop ] if ] map
] change-successors drop ;
: update-predecessor-successors ( copies old-bb -- )
[ predecessors>> swap ] keep
'[ _ update-predecessor-successor ] 2each ;
: update-successor-predecessor ( copies old-bb succ -- )
[
swap 1array split swap join V{ } like
] change-predecessors drop ;
: update-successor-predecessors ( copies old-bb -- )
dup successors>> [
update-successor-predecessor
] with with each ;
: split-branch ( bb -- )
dup predecessors>> [ split-branch-for ] with each ;
[ new-blocks ] keep
[ update-predecessor-successors ]
[ update-successor-predecessors ]
2bi ;
UNION: irrelevant ##peek ##replace ##inc-d ##inc-r ;
: split-instructions? ( insns -- ? )
[ irrelevant? not ] count 5 <= ;
: split-branches? ( bb -- ? )
{
[ successors>> empty? ]
[ predecessors>> length 1 > ]
[ instructions>> [ defs-vregs ] any? not ]
[ instructions>> [ temp-vregs ] any? not ]
[ dup successors>> [ back-edge? ] with any? not ]
[ predecessors>> length 1 4 between? ]
[ instructions>> split-instructions? ]
} 1&& ;
: split-branches ( cfg -- cfg' )
dup [
dup split-branches? [ split-branch ] [ drop ] if
] each-basic-block
f >>post-order ;
cfg-changed ;

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@ -1,9 +1,6 @@
! Copyright (C) 2008, 2009 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: kernel arrays vectors accessors assocs sets
namespaces math make fry sequences
combinators.short-circuit
compiler.cfg.instructions ;
USING: kernel math vectors arrays accessors namespaces ;
IN: compiler.cfg
TUPLE: basic-block < identity-tuple
@ -22,39 +19,12 @@ M: basic-block hashcode* nip id>> ;
V{ } clone >>predecessors
\ basic-block counter >>id ;
: empty-block? ( bb -- ? )
instructions>> {
[ length 1 = ]
[ first ##branch? ]
} 1&& ;
SYMBOL: visited
: (skip-empty-blocks) ( bb -- bb' )
dup visited get key? [
dup empty-block? [
dup visited get conjoin
successors>> first (skip-empty-blocks)
] when
] unless ;
: skip-empty-blocks ( bb -- bb' )
H{ } clone visited [ (skip-empty-blocks) ] with-variable ;
: add-instructions ( bb quot -- )
[ instructions>> building ] dip '[
building get pop
_ dip
building get push
] with-variable ; inline
: back-edge? ( from to -- ? )
[ number>> ] bi@ > ;
TUPLE: cfg { entry basic-block } word label spill-counts post-order ;
: <cfg> ( entry word label -- cfg ) f f cfg boa ;
: cfg-changed ( cfg -- cfg ) f >>post-order ; inline
TUPLE: mr { instructions array } word label ;
: <mr> ( instructions word label -- mr )

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@ -1509,6 +1509,7 @@ SYMBOL: linear-scan-result
compute-liveness
dup reverse-post-order
{ { int-regs regs } } (linear-scan)
cfg-changed
flatten-cfg 1array mr.
] with-scope ;
@ -1803,7 +1804,7 @@ test-diamond
[ ] [ { 1 2 } test-linear-scan-on-cfg ] unit-test
[ _spill ] [ 2 get instructions>> first class ] unit-test
[ _spill ] [ 2 get successors>> first instructions>> first class ] unit-test
[ _spill ] [ 3 get instructions>> second class ] unit-test
@ -1859,7 +1860,7 @@ V{
[ t ] [ 2 get instructions>> [ _spill? ] any? ] unit-test
[ t ] [ 3 get instructions>> [ _spill? ] any? ] unit-test
[ t ] [ 3 get predecessors>> first instructions>> [ _spill? ] any? ] unit-test
[ t ] [ 5 get instructions>> [ _reload? ] any? ] unit-test
@ -1926,7 +1927,7 @@ V{
[ V{ 3 2 1 } ] [ 9 get instructions>> [ _reload? ] filter [ n>> ] map ] unit-test
! Resolve pass should insert this
[ _reload ] [ 5 get instructions>> first class ] unit-test
[ _reload ] [ 5 get predecessors>> first instructions>> first class ] unit-test
! Some random bug
V{
@ -2484,7 +2485,7 @@ test-diamond
[ 1 ] [ 2 get instructions>> [ _spill? ] count ] unit-test
[ 1 ] [ 3 get instructions>> [ _spill? ] count ] unit-test
[ 1 ] [ 3 get predecessors>> first instructions>> [ _spill? ] count ] unit-test
[ 1 ] [ 4 get instructions>> [ _reload? ] count ] unit-test

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@ -40,4 +40,5 @@ IN: compiler.cfg.linear-scan
init-mapping
dup reverse-post-order machine-registers (linear-scan)
spill-counts get >>spill-counts
cfg-changed
] with-scope ;

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@ -1,7 +0,0 @@
USING: arrays compiler.cfg.linear-scan.resolve kernel
tools.test ;
IN: compiler.cfg.linear-scan.resolve.tests
[ { 1 2 3 4 5 6 } ] [
{ 3 4 } V{ 1 2 } clone [ { 5 6 } 3append-here ] keep >array
] unit-test

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@ -3,6 +3,7 @@
USING: accessors arrays assocs combinators
combinators.short-circuit fry kernel locals
make math sequences
compiler.cfg.utilities
compiler.cfg.instructions
compiler.cfg.linear-scan.assignment
compiler.cfg.linear-scan.mapping compiler.cfg.liveness ;
@ -30,42 +31,14 @@ IN: compiler.cfg.linear-scan.resolve
[ resolve-value-data-flow ] with with each
] { } make ;
: fork? ( from to -- ? )
{
[ drop successors>> length 1 >= ]
[ nip predecessors>> length 1 = ]
} 2&& ; inline
: insert-position/fork ( from to -- before after )
nip instructions>> [ >array ] [ dup delete-all ] bi swap ;
: join? ( from to -- ? )
{
[ drop successors>> length 1 = ]
[ nip predecessors>> length 1 >= ]
} 2&& ; inline
: insert-position/join ( from to -- before after )
drop instructions>> dup pop 1array ;
: insert-position ( bb to -- before after )
{
{ [ 2dup fork? ] [ insert-position/fork ] }
{ [ 2dup join? ] [ insert-position/join ] }
} cond ;
: 3append-here ( seq2 seq1 seq3 -- )
#! Mutate seq1
swap '[ _ push-all ] bi@ ;
: perform-mappings ( mappings bb to -- )
pick empty? [ 3drop ] [
[ mapping-instructions ] 2dip
insert-position 3append-here
: perform-mappings ( bb to mappings -- )
dup empty? [ 3drop ] [
mapping-instructions <simple-block>
insert-basic-block
] if ;
: resolve-edge-data-flow ( bb to -- )
[ compute-mappings ] [ perform-mappings ] 2bi ;
2dup compute-mappings perform-mappings ;
: resolve-block-data-flow ( bb -- )
dup successors>> [ resolve-edge-data-flow ] with each ;

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@ -1,8 +1,8 @@
USING: accessors arrays compiler.cfg.checker
compiler.cfg.debugger compiler.cfg.def-use
compiler.cfg.instructions fry kernel kernel.private math
math.private sbufs sequences sequences.private sets
slots.private strings tools.test vectors layouts ;
math.partial-dispatch math.private sbufs sequences sequences.private sets
slots.private strings strings.private tools.test vectors layouts ;
IN: compiler.cfg.optimizer.tests
! Miscellaneous tests
@ -31,6 +31,19 @@ IN: compiler.cfg.optimizer.tests
[ [ 2 fixnum+ ] when 3 ]
[ [ 2 fixnum- ] when 3 ]
[ 10000 [ ] times ]
[
over integer? [
over dup 16 <-integer-fixnum
[ 0 >=-integer-fixnum ] [ drop f ] if [
nip dup
[ ] [ ] if
] [ 2drop f ] if
] [ 2drop f ] if
]
[
pick 10 fixnum>= [ [ 123 fixnum-bitand ] 2dip ] [ ] if
set-string-nth-fast
]
} [
[ [ ] ] dip '[ _ test-mr first check-mr ] unit-test
] each

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@ -29,10 +29,9 @@ SYMBOL: check-optimizer?
! The passes that need this document it.
[
optimize-tail-calls
compute-predecessors
delete-useless-conditionals
split-branches
compute-predecessors
split-branches
stack-analysis
compute-liveness
alias-analysis

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@ -35,6 +35,12 @@ test-diamond
[ ] [ cfg new 0 get >>entry eliminate-phis drop ] unit-test
[ T{ ##copy f V int-regs 3 V int-regs 1 } ] [ 2 get instructions>> second ] unit-test
[ T{ ##copy f V int-regs 3 V int-regs 2 } ] [ 3 get instructions>> second ] unit-test
[ T{ ##copy f V int-regs 3 V int-regs 1 } ]
[ 2 get successors>> first instructions>> first ]
unit-test
[ T{ ##copy f V int-regs 3 V int-regs 2 } ]
[ 3 get successors>> first instructions>> first ]
unit-test
[ 2 ] [ 4 get instructions>> length ] unit-test

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@ -1,7 +1,8 @@
! Copyright (C) 2009 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors assocs fry kernel sequences
compiler.cfg compiler.cfg.instructions compiler.cfg.rpo ;
USING: accessors assocs fry kernel sequences namespaces
compiler.cfg compiler.cfg.instructions compiler.cfg.rpo
compiler.cfg.utilities ;
IN: compiler.cfg.phi-elimination
: insert-copy ( predecessor input output -- )
@ -11,7 +12,11 @@ IN: compiler.cfg.phi-elimination
[ inputs>> ] [ dst>> ] bi '[ _ insert-copy ] assoc-each ;
: eliminate-phi-step ( bb -- )
instructions>> [ dup ##phi? [ eliminate-phi f ] [ drop t ] if ] filter-here ;
H{ } clone added-instructions set
[ instructions>> [ dup ##phi? [ eliminate-phi f ] [ drop t ] if ] filter-here ]
[ insert-basic-blocks ]
bi ;
: eliminate-phis ( cfg -- cfg' )
dup [ eliminate-phi-step ] each-basic-block ;
dup [ eliminate-phi-step ] each-basic-block
cfg-changed ;

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@ -55,6 +55,12 @@ M: ##string-nth rename-insn-uses
[ rename-value ] change-index
drop ;
M: ##set-string-nth-fast rename-insn-uses
dup call-next-method
[ rename-value ] change-obj
[ rename-value ] change-index
drop ;
M: ##set-slot-imm rename-insn-uses
dup call-next-method
[ rename-value ] change-obj

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@ -1,8 +1,8 @@
IN: compiler.cfg.stack-analysis.merge.tests
USING: compiler.cfg.stack-analysis.merge tools.test arrays accessors
compiler.cfg.instructions compiler.cfg.stack-analysis.state
compiler.cfg compiler.cfg.registers compiler.cfg.debugger
cpu.architecture make assocs
compiler.cfg.instructions compiler.cfg.stack-analysis.state
compiler.cfg.utilities compiler.cfg compiler.cfg.registers
compiler.cfg.debugger cpu.architecture make assocs namespaces
sequences kernel classes ;
[
@ -11,13 +11,15 @@ sequences kernel classes ;
] [
<state>
<basic-block> V{ T{ ##branch } } >>instructions
<basic-block> V{ T{ ##branch } } >>instructions 2array
<basic-block> V{ T{ ##branch } } >>instructions dup 1 set
<basic-block> V{ T{ ##branch } } >>instructions dup 2 set 2array
<state> H{ { D 0 V int-regs 0 } } >>locs>vregs
<state> H{ { D 0 V int-regs 1 } } >>locs>vregs 2array
[ merge-locs locs>vregs>> keys ] { } make first inputs>> values
H{ } clone added-instructions set
V{ } clone added-phis set
merge-locs locs>vregs>> keys added-phis get values first
] unit-test
[
@ -26,15 +28,16 @@ sequences kernel classes ;
] [
<state>
<basic-block> V{ T{ ##branch } } >>instructions
<basic-block> V{ T{ ##branch } } >>instructions 2array
<basic-block> V{ T{ ##branch } } >>instructions dup 1 set
<basic-block> V{ T{ ##branch } } >>instructions dup 2 set 2array
[
<state>
<state> H{ { D 0 V int-regs 1 } } >>locs>vregs 2array
<state>
<state> H{ { D 0 V int-regs 1 } } >>locs>vregs 2array
[ merge-locs locs>vregs>> keys ] { } make drop
] keep first instructions>> first class
H{ } clone added-instructions set
V{ } clone added-phis set
[ merge-locs locs>vregs>> keys ] { } make drop
1 get added-instructions get at first class
] unit-test
[
@ -42,15 +45,17 @@ sequences kernel classes ;
] [
<state>
<basic-block> V{ T{ ##branch } } >>instructions
<basic-block> V{ T{ ##branch } } >>instructions 2array
<basic-block> V{ T{ ##branch } } >>instructions dup 1 set
<basic-block> V{ T{ ##branch } } >>instructions dup 2 set 2array
[
<state> -1 >>ds-height
<state> 2array
H{ } clone added-instructions set
V{ } clone added-phis set
[ merge-ds-heights ds-height>> ] { } make drop
] keep first instructions>> first class
<state> -1 >>ds-height
<state> 2array
[ merge-ds-heights ds-height>> ] { } make drop
1 get added-instructions get at first class
] unit-test
[
@ -63,6 +68,9 @@ sequences kernel classes ;
<basic-block> V{ T{ ##branch } } >>instructions
<basic-block> V{ T{ ##branch } } >>instructions 2array
H{ } clone added-instructions set
V{ } clone added-phis set
[
<state> -1 >>ds-height H{ { D 1 V int-regs 0 } } >>locs>vregs
<state> H{ { D 0 V int-regs 1 } } >>locs>vregs 2array
@ -82,6 +90,9 @@ sequences kernel classes ;
<basic-block> V{ T{ ##branch } } >>instructions
<basic-block> V{ T{ ##branch } } >>instructions 2array
H{ } clone added-instructions set
V{ } clone added-phis set
[
<state> -1 >>ds-height H{ { D -1 V int-regs 0 } } >>locs>vregs
<state> -1 >>ds-height H{ { D -1 V int-regs 1 } } >>locs>vregs 2array

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@ -1,12 +1,11 @@
! Copyright (C) 2009 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: kernel assocs sequences accessors fry combinators grouping
sets locals compiler.cfg compiler.cfg.hats compiler.cfg.instructions
compiler.cfg.stack-analysis.state ;
USING: kernel assocs sequences accessors fry combinators grouping sets
arrays vectors locals namespaces make compiler.cfg compiler.cfg.hats
compiler.cfg.instructions compiler.cfg.stack-analysis.state
compiler.cfg.registers compiler.cfg.utilities cpu.architecture ;
IN: compiler.cfg.stack-analysis.merge
! XXX critical edges
: initial-state ( bb states -- state ) 2drop <state> ;
: single-predecessor ( bb states -- state ) nip first clone ;
@ -27,14 +26,14 @@ IN: compiler.cfg.stack-analysis.merge
[ nip first >>rs-height ]
[ [ '[ _ save-rs-height ] add-instructions ] 2each ] if ;
: assoc-map-values ( assoc quot -- assoc' )
: assoc-map-keys ( assoc quot -- assoc' )
'[ _ dip ] assoc-map ; inline
: translate-locs ( assoc state -- assoc' )
'[ _ translate-loc ] assoc-map-values ;
'[ _ translate-loc ] assoc-map-keys ;
: untranslate-locs ( assoc state -- assoc' )
'[ _ untranslate-loc ] assoc-map-values ;
'[ _ untranslate-loc ] assoc-map-keys ;
: collect-locs ( loc-maps states -- assoc )
! assoc maps locs to sequences
@ -45,12 +44,16 @@ IN: compiler.cfg.stack-analysis.merge
: insert-peek ( predecessor loc state -- vreg )
'[ _ _ translate-loc ^^peek ] add-instructions ;
SYMBOL: added-phis
: add-phi-later ( inputs -- vreg )
[ int-regs next-vreg dup ] dip 2array added-phis get push ;
: merge-loc ( predecessors vregs loc state -- vreg )
! Insert a ##phi in the current block where the input
! is the vreg storing loc from each predecessor block
[ dup ] 3dip
'[ [ ] [ _ _ insert-peek ] ?if ] 2map
dup all-equal? [ nip first ] [ zip ^^phi ] if ;
dup all-equal? [ first ] [ add-phi-later ] if ;
:: merge-locs ( state predecessors states -- state )
states [ locs>vregs>> ] map states collect-locs
@ -77,30 +80,35 @@ IN: compiler.cfg.stack-analysis.merge
over translate-locs
>>changed-locs ;
ERROR: cannot-merge-poisoned states ;
:: insert-phis ( bb -- )
bb predecessors>> :> predecessors
[
added-phis get [| dst inputs |
dst predecessors inputs zip ##phi
] assoc-each
] V{ } make bb instructions>> over push-all
bb (>>instructions) ;
: multiple-predecessors ( bb states -- state )
dup [ not ] any? [
2drop <state>
:: multiple-predecessors ( bb states -- state )
states [ not ] any? [
<state>
] [
dup [ poisoned?>> ] any? [
cannot-merge-poisoned
] [
[ state new ] 2dip
[ predecessors>> ] dip
{
[ merge-ds-heights ]
[ merge-rs-heights ]
[ merge-locs ]
[ nip merge-actual-locs ]
[ nip merge-changed-locs ]
} 2cleave
] if
[
H{ } clone added-instructions set
V{ } clone added-phis set
bb predecessors>> :> predecessors
state new
predecessors states merge-ds-heights
predecessors states merge-rs-heights
predecessors states merge-locs
states merge-actual-locs
states merge-changed-locs
bb insert-basic-blocks
bb insert-phis
] with-scope
] if ;
: merge-states ( bb states -- state )
! If any states are poisoned, save all registers
! to the stack in each branch
dup length {
{ 0 [ initial-state ] }
{ 1 [ single-predecessor ] }

View File

@ -99,7 +99,7 @@ IN: compiler.cfg.stack-analysis.tests
! Correct height tracking
[ t ] [
[ pick [ <array> ] [ drop ] if swap ] test-stack-analysis eliminate-dead-code
reverse-post-order 3 swap nth
reverse-post-order 4 swap nth
instructions>> [ ##peek? ] filter first2 [ loc>> ] [ loc>> ] bi*
2array { D 1 D 0 } set=
] unit-test
@ -126,7 +126,7 @@ IN: compiler.cfg.stack-analysis.tests
stack-analysis
drop
3 get instructions>> second loc>>
3 get successors>> first instructions>> first loc>>
] unit-test
! Do inserted ##peeks reference the correct stack location if
@ -156,7 +156,7 @@ IN: compiler.cfg.stack-analysis.tests
stack-analysis
drop
3 get instructions>> [ ##peek? ] find nip loc>>
3 get successors>> first instructions>> [ ##peek? ] find nip loc>>
] unit-test
! Missing ##replace
@ -170,9 +170,9 @@ IN: compiler.cfg.stack-analysis.tests
! Inserted ##peeks reference the wrong stack location
[ t ] [
[ [ "B" ] 2dip dup [ [ /mod ] dip ] when ] test-stack-analysis
eliminate-dead-code reverse-post-order 3 swap nth
eliminate-dead-code reverse-post-order 4 swap nth
instructions>> [ ##peek? ] filter [ loc>> ] map
{ R 0 D 0 D 1 } set=
{ D 0 D 1 } set=
] unit-test
[ D 0 ] [
@ -200,5 +200,5 @@ IN: compiler.cfg.stack-analysis.tests
stack-analysis
drop
3 get instructions>> [ ##peek? ] find nip loc>>
3 get successors>> first instructions>> [ ##peek? ] find nip loc>>
] unit-test

View File

@ -1,7 +1,7 @@
! Copyright (C) 2009 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors assocs kernel namespaces math sequences fry grouping
sets make combinators
sets make combinators dlists deques
compiler.cfg
compiler.cfg.copy-prop
compiler.cfg.def-use
@ -10,9 +10,14 @@ compiler.cfg.registers
compiler.cfg.rpo
compiler.cfg.hats
compiler.cfg.stack-analysis.state
compiler.cfg.stack-analysis.merge ;
compiler.cfg.stack-analysis.merge
compiler.cfg.utilities ;
IN: compiler.cfg.stack-analysis
SYMBOL: work-list
: add-to-work-list ( bb -- ) work-list get push-front ;
: redundant-replace? ( vreg loc -- ? )
dup state get untranslate-loc n>> 0 <
[ 2drop t ] [ state get actual-locs>vregs>> at = ] if ;
@ -137,10 +142,21 @@ SYMBOLS: state-in state-out ;
] 2bi
] V{ } make >>instructions drop ;
: visit-successors ( bb -- )
dup successors>> [
2dup back-edge? [ 2drop ] [ nip add-to-work-list ] if
] with each ;
: process-work-list ( -- )
work-list get [ visit-block ] slurp-deque ;
: stack-analysis ( cfg -- cfg' )
[
<hashed-dlist> work-list set
H{ } clone copies set
H{ } clone state-in set
H{ } clone state-out set
dup [ visit-block ] each-basic-block
dup [ add-to-work-list ] each-basic-block
process-work-list
cfg-changed
] with-scope ;

View File

@ -5,7 +5,8 @@ namespaces sequences fry combinators
compiler.cfg
compiler.cfg.rpo
compiler.cfg.hats
compiler.cfg.instructions ;
compiler.cfg.instructions
compiler.cfg.utilities ;
IN: compiler.cfg.tco
! Tail call optimization. You must run compute-predecessors after this
@ -82,4 +83,4 @@ M: ##fixnum-mul convert-fixnum-tail-call* drop i i \ ##fixnum-mul-tail new-insn
: optimize-tail-calls ( cfg -- cfg' )
dup cfg set
dup [ optimize-tail-call ] each-basic-block
f >>post-order ;
cfg-changed ;

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@ -1,7 +1,8 @@
! Copyright (C) 2008, 2009 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: kernel accessors sequences math combinators combinators.short-circuit
classes vectors compiler.cfg compiler.cfg.instructions compiler.cfg.rpo ;
classes vectors compiler.cfg compiler.cfg.instructions compiler.cfg.rpo
compiler.cfg.utilities ;
IN: compiler.cfg.useless-conditionals
: delete-conditional? ( bb -- ? )
@ -18,4 +19,4 @@ IN: compiler.cfg.useless-conditionals
dup [
dup delete-conditional? [ delete-conditional ] [ drop ] if
] each-basic-block
f >>post-order ;
cfg-changed ;

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@ -1,8 +1,8 @@
! Copyright (C) 2008 Slava Pestov.
! Copyright (C) 2008, 2009 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors kernel math layouts make sequences combinators
cpu.architecture namespaces compiler.cfg
compiler.cfg.instructions ;
USING: accessors assocs combinators combinators.short-circuit
compiler.cfg compiler.cfg.instructions cpu.architecture kernel
layouts locals make math namespaces sequences sets vectors fry ;
IN: compiler.cfg.utilities
: value-info-small-fixnum? ( value-info -- ? )
@ -33,7 +33,53 @@ IN: compiler.cfg.utilities
building off
basic-block off ;
: stop-iterating ( -- next ) end-basic-block f ;
: emit-primitive ( node -- )
word>> ##call ##branch begin-basic-block ;
: back-edge? ( from to -- ? )
[ number>> ] bi@ >= ;
: empty-block? ( bb -- ? )
instructions>> {
[ length 1 = ]
[ first ##branch? ]
} 1&& ;
SYMBOL: visited
: (skip-empty-blocks) ( bb -- bb' )
dup visited get key? [
dup empty-block? [
dup visited get conjoin
successors>> first (skip-empty-blocks)
] when
] unless ;
: skip-empty-blocks ( bb -- bb' )
H{ } clone visited [ (skip-empty-blocks) ] with-variable ;
! assoc mapping predecessors to sequences
SYMBOL: added-instructions
: add-instructions ( predecessor quot -- )
[
added-instructions get
[ drop V{ } clone ] cache
building
] dip with-variable ; inline
:: insert-basic-block ( from to bb -- )
bb from 1vector >>predecessors drop
bb to 1vector >>successors drop
to predecessors>> [ dup from eq? [ drop bb ] when ] change-each
from successors>> [ dup to eq? [ drop bb ] when ] change-each ;
: <simple-block> ( insns -- bb )
<basic-block>
swap >vector
\ ##branch new-insn over push
>>instructions ;
: insert-basic-blocks ( bb -- )
[ added-instructions get ] dip
'[ [ _ ] dip <simple-block> insert-basic-block ] assoc-each ;

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@ -77,13 +77,19 @@ M: ##compare-imm-branch rewrite
insn cc>> swap? [ swap-cc ] when
i \ ##compare-imm new-insn ; inline
! M: ##compare rewrite
! dup [ src1>> ] [ src2>> ] bi
! [ vreg>expr constant-expr? ] bi@ 2array {
! { { f t } [ f >compare-imm ] }
! { { t f } [ t >compare-imm ] }
! [ drop ]
! } case ;
: vreg-small-constant? ( vreg -- ? )
vreg>expr {
[ constant-expr? ]
[ value>> small-enough? ]
} 1&& ;
M: ##compare rewrite
dup [ src1>> ] [ src2>> ] bi
[ vreg-small-constant? ] bi@ 2array {
{ { f t } [ f >compare-imm ] }
{ { t f } [ t >compare-imm ] }
[ drop ]
} case ;
:: >compare-imm-branch ( insn swap? -- insn' )
insn src1>>
@ -91,13 +97,13 @@ M: ##compare-imm-branch rewrite
insn cc>> swap? [ swap-cc ] when
\ ##compare-imm-branch new-insn ; inline
! M: ##compare-branch rewrite
! dup [ src1>> ] [ src2>> ] bi
! [ vreg>expr constant-expr? ] bi@ 2array {
! { { f t } [ f >compare-imm-branch ] }
! { { t f } [ t >compare-imm-branch ] }
! [ drop ]
! } case ;
M: ##compare-branch rewrite
dup [ src1>> ] [ src2>> ] bi
[ vreg-small-constant? ] bi@ 2array {
{ { f t } [ f >compare-imm-branch ] }
{ { t f } [ t >compare-imm-branch ] }
[ drop ]
} case ;
: rewrite-redundant-comparison? ( insn -- ? )
{
@ -198,10 +204,7 @@ M: ##or-imm rewrite [ bitor ] \ ##or-imm combine-imm ;
M: ##xor-imm rewrite [ bitxor ] \ ##xor-imm combine-imm ;
: rewrite-add? ( insn -- ? )
src2>> {
[ vreg>expr constant-expr? ]
[ vreg>constant small-enough? ]
} 1&& ;
src2>> vreg-small-constant? ;
M: ##add rewrite
dup rewrite-add? [

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@ -26,7 +26,7 @@ HELP: assoc>query
"USING: io urls.encoding ;"
"{ { \"from\" \"Lead\" } { \"to\" \"Gold, please\" } }"
"assoc>query print"
"from=Lead&to=Gold%2c%20please"
"from=Lead&to=Gold%2C%20please"
}
} ;

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@ -290,4 +290,7 @@ M: bogus-hashcode hashcode* 2drop 0 >bignum ;
USE: make
[ { "a" 1 "b" 1 "c" } ]
[ 1 { "a" "b" "c" } [ [ dup , ] [ , ] interleave drop ] { } make ] unit-test
[ 1 { "a" "b" "c" } [ [ dup , ] [ , ] interleave drop ] { } make ] unit-test
[ t ] [ 0 array-capacity? ] unit-test
[ f ] [ -1 array-capacity? ] unit-test

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@ -76,7 +76,7 @@ HELP: count
HELP: create-collection
{ $values
{ "name" "collection name" }
{ "name/collection" "collection name" }
}
{ $description "Creates a new collection with the given name." } ;