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

Prev:	compute-live-intervals* ( insn -- )
Next:	record-use ( vreg n spill-slot? -- )

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 'vreg' is defined at the instruction numbered 'n'.

Definition

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

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

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