split-interval ( live-interval n -- before after )

Vocabulary

compiler.cfg.linear-scan.allocation.splitting

Inputs

live-interval	a live-interval-state
n	an integer

Outputs

before	a live-interval-state
after	a live-interval-state

Word description

Splits the interval in two around the flow point 'n'.

Definition

USING: accessors compiler.cfg.linear-scan.ranges kernel ;

IN: compiler.cfg.linear-scan.allocation.splitting

:: split-interval ( live-interval n -- before after )
    live-interval n check-split
    live-interval clone :> before live-interval clone :> after
    live-interval uses>> n split-uses before after
    [ uses<< ] bi-curry@ bi*
    live-interval ranges>> n split-ranges before after
    [ ranges<< ] bi-curry@ bi*
    before split-before after split-after ;