1 ! Copyright (C) 2008, 2010 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: namespaces accessors math.order assocs kernel sequences
4 combinators make classes words cpu.architecture layouts
5 compiler.cfg.instructions compiler.cfg.registers
6 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 UNION: stack-frame-insn
23 M: stack-frame-insn compute-stack-frame*
24 stack-frame>> request-stack-frame ;
26 M: ##call compute-stack-frame* drop frame-required? on ;
28 M: ##call-gc compute-stack-frame*
31 stack-frame new t >>calls-vm? request-stack-frame ;
33 M: _spill-area-size compute-stack-frame*
34 n>> stack-frame get (>>spill-area-size) ;
36 M: insn compute-stack-frame*
37 class frame-required? word-prop [
41 ! PowerPC backend sets frame-required? for ##integer>float!
42 \ ##spill t frame-required? set-word-prop
43 \ ##unary-float-function t frame-required? set-word-prop
44 \ ##binary-float-function t frame-required? set-word-prop
46 : compute-stack-frame ( insns -- )
48 stack-frame new stack-frame set
49 [ compute-stack-frame* ] each
50 stack-frame get dup stack-frame-size >>total-size drop ;
52 GENERIC: insert-pro/epilogues* ( insn -- )
54 M: ##prologue insert-pro/epilogues*
55 drop frame-required? get [ stack-frame get _prologue ] when ;
57 M: ##epilogue insert-pro/epilogues*
58 drop frame-required? get [ stack-frame get _epilogue ] when ;
60 M: insn insert-pro/epilogues* , ;
62 : insert-pro/epilogues ( insns -- insns )
63 [ [ insert-pro/epilogues* ] each ] { } make ;
65 : build-stack-frame ( mr -- mr )
68 [ compute-stack-frame ]
69 [ insert-pro/epilogues ]