foldable-insn

Vocabulary

compiler.cfg.instructions

Class description

Instructions which are referentially transparent; used for value numbering.

Definition

IN: compiler.cfg.instructions

TUPLE: foldable-insn < flushable-insn ;

Methods

USING: compiler.cfg.def-use compiler.cfg.instructions
compiler.cfg.value-numbering
compiler.cfg.value-numbering.rewrite kernel sequences ;

M: foldable-insn process-instruction
    [ rewrite ] [ process-instruction ]
    [ dup defs-vregs length 1 = [ check-redundancy ] when ] ?if
    ;