1 ! Copyright (C) 2009, 2010 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: math math.order namespaces accessors kernel layouts
4 combinators assocs sequences cpu.architecture
5 words compiler.cfg.instructions ;
6 IN: compiler.cfg.stack-frame
10 { local-allot integer }
11 { spill-area-size integer }
12 { total-size integer } ;
14 ! Stack frame utilities
15 : local-allot-offset ( n -- offset )
16 stack-frame get params>> + ;
18 : spill-offset ( n -- offset )
19 stack-frame get [ params>> ] [ local-allot>> ] bi + + ;
21 : (stack-frame-size) ( stack-frame -- n )
22 [ params>> ] [ local-allot>> ] [ spill-area-size>> ] tri + + ;
24 : max-stack-frame ( frame1 frame2 -- frame3 )
25 [ stack-frame new ] 2dip
27 [ [ params>> ] bi@ max >>params ]
28 [ [ local-allot>> ] bi@ max >>local-allot ]
29 [ [ spill-area-size>> ] bi@ max >>spill-area-size ]