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compiler.cfg.intrinsics.slots: new implementation of value-tag

db4
Slava Pestov 2009-11-10 17:30:27 -06:00
parent 41e340f231
commit 19283ed83d
1 changed files with 7 additions and 4 deletions
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basis/compiler/cfg/intrinsics/slots/slots.factor
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@ -1,14 +1,17 @@
! Copyright (C) 2008, 2009 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: layouts namespaces kernel accessors sequences math
classes.algebra locals combinators cpu.architecture
compiler.tree.propagation.info compiler.cfg.stacks
compiler.cfg.hats compiler.cfg.registers
classes.algebra classes.builtin locals combinators
cpu.architecture compiler.tree.propagation.info
compiler.cfg.stacks compiler.cfg.hats compiler.cfg.registers
compiler.cfg.instructions compiler.cfg.utilities
compiler.cfg.builder.blocks compiler.constants ;
IN: compiler.cfg.intrinsics.slots
: value-tag ( info -- n ) class>> class-type ; inline
: class-tag ( class -- tag/f )
builtins get [ class<= ] with find drop ;
: value-tag ( info -- n ) class>> class-tag ;
: ^^tag-offset>slot ( slot tag -- vreg' )
[ ^^offset>slot ] dip ^^sub-imm ;