75 lines
2.1 KiB
Factor
75 lines
2.1 KiB
Factor
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! Copyright (C) 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: namespaces accessors math.order assocs kernel sequences
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combinators make classes words cpu.architecture
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compiler.cfg.instructions compiler.cfg.registers
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compiler.cfg.stack-frame ;
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IN: compiler.cfg.build-stack-frame
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SYMBOL: frame-required?
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SYMBOL: spill-counts
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GENERIC: compute-stack-frame* ( insn -- )
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: request-stack-frame ( stack-frame -- )
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stack-frame [ max-stack-frame ] change ;
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M: ##stack-frame compute-stack-frame*
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frame-required? on
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stack-frame>> request-stack-frame ;
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M: ##call compute-stack-frame*
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word>> sub-primitive>> [ frame-required? on ] unless ;
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M: _gc compute-stack-frame*
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frame-required? on
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stack-frame new swap gc-root-size>> >>gc-root-size
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request-stack-frame ;
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M: _spill-counts compute-stack-frame*
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counts>> stack-frame get (>>spill-counts) ;
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M: insn compute-stack-frame*
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class frame-required? word-prop [
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frame-required? on
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] when ;
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\ _spill t frame-required? set-word-prop
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\ ##fixnum-add t frame-required? set-word-prop
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\ ##fixnum-sub t frame-required? set-word-prop
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\ ##fixnum-mul t frame-required? set-word-prop
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\ ##fixnum-add-tail f frame-required? set-word-prop
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\ ##fixnum-sub-tail f frame-required? set-word-prop
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\ ##fixnum-mul-tail f frame-required? set-word-prop
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: compute-stack-frame ( insns -- )
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frame-required? off
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T{ stack-frame } clone stack-frame set
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[ compute-stack-frame* ] each
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stack-frame get dup stack-frame-size >>total-size drop ;
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GENERIC: insert-pro/epilogues* ( insn -- )
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M: ##stack-frame insert-pro/epilogues* drop ;
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M: ##prologue insert-pro/epilogues*
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drop frame-required? get [ stack-frame get _prologue ] when ;
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M: ##epilogue insert-pro/epilogues*
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drop frame-required? get [ stack-frame get _epilogue ] when ;
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M: insn insert-pro/epilogues* , ;
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: insert-pro/epilogues ( insns -- insns )
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[ [ insert-pro/epilogues* ] each ] { } make ;
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: build-stack-frame ( mr -- mr )
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[
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[
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[ compute-stack-frame ]
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[ insert-pro/epilogues ]
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bi
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] change-instructions
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] with-scope ;
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