assign-register ( new registers -- )

Vocabulary

compiler.cfg.linear-scan.allocation

Inputs

new	a live-interval-state
registers	an assoc

Outputs

None

Word description

Assigns a processor register to the live interval.

Definition

USING: combinators compiler.cfg.linear-scan.allocation.spilling
compiler.cfg.linear-scan.allocation.state kernel sequences ;

IN: compiler.cfg.linear-scan.allocation

: assign-register ( new registers -- )
    dupd register-status {
        { [ dup second 0 = ] [ drop assign-blocked-register ] }
        { [ 2dup register-available? ] [ register-available ] }
        [ drop assign-blocked-register ]
    } cond ;