1 USING: accessors arrays assocs compiler.cfg.instructions
2 compiler.cfg.linearization compiler.cfg.stacks.padding fry kernel math
4 IN: compiler.cfg.stacks.vacant
6 : vacant>bits ( vacant -- bits )
8 dup supremum 1 + 1 <array>
9 [ '[ _ 0 -rot set-nth ] each ] keep
12 : state>gc-data ( state -- gc-data )
13 [ second vacant>bits ] map ;
15 : set-gc-map ( state gc-map -- )
16 swap state>gc-data first2 -rot >>scrub-d swap >>scrub-r drop ;
18 : fill-gc-maps ( cfg -- )
19 [ trace-stack-state ] [ cfg>insns [ gc-map-insn? ] filter ] bi
20 [ [ insn#>> of ] [ gc-map>> ] bi set-gc-map ] with each ;