weighted-traffic ( graph -- count )

Vocabulary

compiler.cfg.register-allocation.spill-sites.fixtures

Inputs

graph

an object

Outputs

count

an object

Definition

USING: accessors compiler.cfg.instructions
compiler.cfg.linearization compiler.cfg.loop-detection kernel
math math.functions math.order sequences ;

IN: compiler.cfg.register-allocation.spill-sites.fixtures

:: weighted-traffic ( graph -- count )
    graph needs-loops graph linearization-order [| bb |
        bb instructions>>
        [ dup ##spill? swap ##reload? or ] count
        8 bb loop-nesting-at 3 min ^ *
    ] map-sum ;