insn>sync-point ( insn -- sync-point/f )
Live interval utilities

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

Inputs

insn

an insn

Outputs

sync-point/f

a sync-point or f

Word description
If the instruction clobbers arbitrary registers, then a sync point for it is emitted. Most instructions don't so then f is returned instead.

Definition

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

GENERIC: insn>sync-point ( insn -- sync-point/f )

Methods

USING: accessors compiler.cfg.linear-scan.live-intervals kernel
;

M: clobber-insn insn>sync-point
    [ insn#>> ] [ hairy-clobber-insn? not ] bi sync-point boa ;


USING: compiler.cfg.instructions
compiler.cfg.linear-scan.live-intervals kernel ;

M: insn insn>sync-point drop f ;