record-use ( vreg n spill-slot? -- )
Live interval utilities

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Vocabulary
compiler.cfg.linear-scan.live-intervals

Inputs

vreg	an integer
n	an integer
spill-slot?	a boolean

Outputs
None

Word description
Records that the virtual register was used at the given instruction point.

Definition

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

IN: compiler.cfg.linear-scan.live-intervals

:: record-use ( vreg n spill-slot? -- )
    vreg vreg>live-interval :> live-interval from get n
    live-interval ranges>> add-range
    n live-interval spill-slot? (add-use) vreg rep-of >>use-rep
    drop ;