! Copyright (C) 2008 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: namespaces layouts sequences kernel
accessors compiler.tree.propagation.info
compiler.cfg.stacks compiler.cfg.hats
compiler.cfg.instructions compiler.cfg.utilities ;
IN: compiler.cfg.intrinsics.misc

: emit-tag ( -- )
    ds-pop tag-mask get ^^and-imm ^^tag-fixnum ds-push ;

: emit-getenv ( node -- )
    "userenv" f ^^alien-global
    swap node-input-infos first literal>>
    [ ds-drop 0 ^^slot-imm ] [ ds-pop ^^offset>slot 0 ^^slot ] if*
    ds-push ;