split-single-interval ( interval -- )

Vocabulary

compiler.cfg.register-allocation.backtracking

Inputs

interval

an object

Outputs

None

Definition

USING: accessors arrays
compiler.cfg.linear-scan.allocation.spilling kernel math
namespaces sequences ;

IN: compiler.cfg.register-allocation.backtracking

:: split-single-interval ( interval -- )
    interval ensure-interval-home
    interval uses>> :> uses interval minimal-interval?
    [ interval unsatisfiable-register-pressure ] when
    backtracking-splits inc
    interval 1array <allocation-bundle> bundle-split-sites
    :> sites sites empty? [
        backtracking-minimal-splits inc
        interval spill-after normalize-phase-reload
        phase-spill-before enqueue-interval
    ] [
        sites dup length 2 /i swap nth
        interval swap split-for-bundle [ enqueue-interval ] bi@
    ] if ;