record-uses ( n insn -- )

Vocabulary

compiler.cfg.ssa.interference.live-ranges.private

Inputs

n	an integer
insn	an insn

Outputs

None

Word description

Record live intervals so that all but the first input interfere with the output. This lets us coalesce the output with the first input.

Definition

USING: assocs compiler.cfg.def-use compiler.cfg.instructions
kernel math namespaces sequences ;

IN: compiler.cfg.ssa.interference.live-ranges.private

: record-uses ( n insn -- )
    dup uses-vregs
    [ 2drop ] [
        swap def-is-use-insn? [
            [ first local-kill-indices get set-at ]
            [ rest-slice ] 2bi
        ] unless [ 1 + ] dip
        [ local-kill-indices get set-at ] with each
    ] if-empty ;