init-allocator ( intervals/sync-points registers -- )

Vocabulary

compiler.cfg.linear-scan.allocation.state

Inputs

intervals/sync-points	sequence of live-interval-state and sync-point.
registers	assoc mapping from register class to available machine registers.

Outputs

None

Word description

Initializes the state for the register allocator.

See also

reg-class

Definition

USING: kernel namespaces ;

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

: init-allocator ( intervals/sync-points registers -- )
    registers set >unhandled-min-heap unhandled-min-heap set
    [ V{ } clone ] reg-class-assoc active-intervals set
    [ V{ } clone ] reg-class-assoc inactive-intervals set
    V{ } clone handled-intervals set H{ } clone spill-slots set
    -1 progress set ;