32 lines
893 B
Factor
32 lines
893 B
Factor
! Copyright (C) 2009, 2010 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: math math.order namespaces accessors kernel layouts combinators
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combinators.smart assocs sequences cpu.architecture ;
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IN: compiler.cfg.stack-frame
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TUPLE: stack-frame
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{ params integer }
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{ return integer }
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{ total-size integer }
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{ spill-area-size integer }
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{ calls-vm? boolean } ;
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! Stack frame utilities
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: param-base ( -- n )
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stack-frame get [ params>> ] [ return>> ] bi + ;
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: spill-offset ( n -- offset )
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param-base + ;
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: (stack-frame-size) ( stack-frame -- n )
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[
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[ params>> ] [ return>> ] [ spill-area-size>> ] tri
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] sum-outputs ;
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: max-stack-frame ( frame1 frame2 -- frame3 )
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[ stack-frame new ] 2dip
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{
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[ [ params>> ] bi@ max >>params ]
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[ [ return>> ] bi@ max >>return ]
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[ [ calls-vm?>> ] bi@ or >>calls-vm? ]
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} 2cleave ; |