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compiler.cfg.linear-scan.allocation.splitting: better def for split-uses 

it seems to be just as fast as the wordier one
db4
Björn Lindqvist 2015-09-20 12:09:27 +02:00
parent ea67379751
commit 86d35982ac
2 changed files with 27 additions and 27 deletions
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45
basis/compiler/cfg/linear-scan/allocation/splitting/splitting-tests.factor
View File

@ -18,30 +18,35 @@ IN: compiler.cfg.linear-scan.allocation.splitting.tests
{
T{ live-interval-state
{ ranges { { 5 8 } } }
{ uses
T{ slice
{ from 0 }
{ to 1 }
{ seq {
T{ vreg-use { n 3 } { def-rep int-rep } }
T{ vreg-use { n 15 } { def-rep int-rep } }
} }
}
}
{ uses { T{ vreg-use { n 3 } { def-rep int-rep } } } }
}
T{ live-interval-state
{ ranges { { 12 20 } } }
{ uses
T{ slice
{ from 1 }
{ to 2 }
{ seq {
T{ vreg-use { n 3 } { def-rep int-rep } }
T{ vreg-use { n 15 } { def-rep int-rep } }
} }
}
}
{ uses { T{ vreg-use { n 15 } { def-rep int-rep } } } }
}
} [
test-interval-easy 10 split-interval
] unit-test
! split-uses
{
{ T{ vreg-use { n 3 } } }
{ T{ vreg-use { n 9 } } }
} [
{ T{ vreg-use { n 3 } } T{ vreg-use { n 9 } } } 6 split-uses
] unit-test
{
{ T{ vreg-use { n 10 } } T{ vreg-use { n 10 } } } { }
} [
{ T{ vreg-use { n 10 } } T{ vreg-use { n 10 } } } 12 split-uses
] unit-test
! This one is strange. Why is the middle one removed?
{
{ T{ vreg-use { n 3 } } }
{ T{ vreg-use { n 5 } } }
} [
{ T{ vreg-use { n 3 } } T{ vreg-use { n 4 } } T{ vreg-use { n 5 } } }
4 split-uses
] unit-test

9
basis/compiler/cfg/linear-scan/allocation/splitting/splitting.factor
View File

@ -7,13 +7,8 @@ compiler.cfg.linear-scan.ranges fry hints kernel locals math math.order
namespaces sequences ;
IN: compiler.cfg.linear-scan.allocation.splitting
:: split-uses ( uses n -- before after )
uses n uses [ n>> <=> ] with search
n>> n <=> {
{ +eq+ [ [ head-slice ] [ 1 + tail-slice ] 2bi ] }
{ +lt+ [ 1 + cut-slice ] }
{ +gt+ [ cut-slice ] }
} case ;
: split-uses ( uses n -- before after )
[ '[ n>> _ < ] filter ] [ '[ n>> _ > ] filter ] 2bi ;
ERROR: splitting-too-early ;