gc-map-insn
Basic block instructions

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Vocabulary
compiler.cfg.instructions

Class description
Union class of instructions which may trigger garbage collection, including safepoints and calls to allocating functions. Each instance has a gc-map slot.

Definition

IN: compiler.cfg.instructions

UNION: gc-map-insn gc-check-insn ##box ##box-long-long
    ##alien-indirect ##alien-invoke ;

Methods

USING: compiler.cfg.alias-analysis compiler.cfg.instructions ;

M: gc-map-insn analyze-aliases def-acs clear-recent-stores ;


USING: accessors compiler.cfg.instructions generic kernel ;

M: gc-map-insn clone
    M\ gc-map-insn clone (call-next-method)
    [ clone ] change-gc-map ;


USING: compiler.cfg.instructions compiler.cfg.write-barrier
namespaces sets ;

M: gc-map-insn eliminate-write-barrier
    fresh-allocations get clear-set ;


USING: compiler.cfg.gc-checks.private compiler.cfg.instructions
;

M: gc-map-insn gc-check-offsets* gc-check-here ;


USING: accessors compiler.cfg.instructions compiler.cfg.liveness
kernel ;

M: gc-map-insn visit-insn
    [ kill-defs ] [ gc-map>> fill-gc-map ]
    [ [ gen-gc-uses ] [ gen-uses ] 2bi ] 2tri ;


USING: compiler.cfg.instructions compiler.cfg.stacks.padding
kernel ;

M: gc-map-insn visit-insn drop ;