49 lines
1.2 KiB
Factor
49 lines
1.2 KiB
Factor
! Copyright (C) 2008, 2010 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors kernel layouts math namespaces vectors ;
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IN: compiler.cfg
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TUPLE: basic-block < identity-tuple
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number
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{ instructions vector }
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{ successors vector }
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{ predecessors vector }
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{ kill-block? boolean } ;
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: <basic-block> ( -- bb )
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basic-block new
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V{ } clone >>instructions
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V{ } clone >>successors
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V{ } clone >>predecessors ;
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TUPLE: cfg
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{ entry basic-block }
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word
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label
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{ spill-area-size integer }
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{ spill-area-align integer }
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stack-frame
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frame-pointer?
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post-order linear-order
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predecessors-valid? dominance-valid? loops-valid? ;
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: <cfg> ( word label entry -- cfg )
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cfg new
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swap >>entry
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swap >>label
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swap >>word
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0 >>spill-area-size
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cell >>spill-area-align ;
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: cfg-changed ( cfg -- )
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f >>post-order
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f >>linear-order
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f >>dominance-valid?
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f >>loops-valid? drop ; inline
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: predecessors-changed ( cfg -- )
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f >>predecessors-valid? drop ;
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: with-cfg ( ..a cfg quot: ( ..a cfg -- ..b ) -- ..b )
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[ dup cfg ] dip with-variable ; inline
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