1 ! Copyright (C) 2008, 2010 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: namespaces accessors math math.order assocs kernel sequences
4 combinators classes words system cpu.architecture layouts compiler.cfg
5 compiler.cfg.rpo compiler.cfg.instructions
6 compiler.cfg.registers compiler.cfg.stack-frame ;
7 IN: compiler.cfg.build-stack-frame
9 SYMBOL: frame-required?
11 GENERIC: compute-stack-frame* ( insn -- )
13 : request-stack-frame ( stack-frame -- )
15 stack-frame [ max-stack-frame ] change ;
17 M: ##stack-frame compute-stack-frame*
18 stack-frame>> request-stack-frame ;
20 : frame-required ( -- ) frame-required? on ;
22 : vm-frame-required ( -- )
24 stack-frame new t >>calls-vm? request-stack-frame ;
26 M: ##call-gc compute-stack-frame* drop vm-frame-required ;
27 M: ##box compute-stack-frame* drop vm-frame-required ;
28 M: ##unbox compute-stack-frame* drop vm-frame-required ;
29 M: ##box-long-long compute-stack-frame* drop vm-frame-required ;
30 M: ##begin-callback compute-stack-frame* drop vm-frame-required ;
31 M: ##end-callback compute-stack-frame* drop vm-frame-required ;
32 M: ##unary-float-function compute-stack-frame* drop vm-frame-required ;
33 M: ##binary-float-function compute-stack-frame* drop vm-frame-required ;
35 M: ##call compute-stack-frame* drop frame-required ;
36 M: ##alien-callback compute-stack-frame* drop frame-required ;
37 M: ##spill compute-stack-frame* drop frame-required ;
38 M: ##reload compute-stack-frame* drop frame-required ;
40 M: ##float>integer compute-stack-frame*
41 drop cpu ppc? [ frame-required ] when ;
43 M: ##integer>float compute-stack-frame*
44 drop cpu ppc? [ frame-required ] when ;
46 M: insn compute-stack-frame* drop ;
48 : initial-stack-frame ( -- stack-frame )
49 stack-frame new cfg get spill-area-size>> >>spill-area-size ;
51 : compute-stack-frame ( cfg -- )
52 initial-stack-frame stack-frame set
53 [ spill-area-size>> 0 > frame-required? set ]
54 [ [ instructions>> [ compute-stack-frame* ] each ] each-basic-block ] bi
55 stack-frame get dup stack-frame-size >>total-size drop ;
57 : build-stack-frame ( cfg -- cfg )
59 [ compute-stack-frame ]
61 frame-required? get stack-frame get f ?