60 lines
1.4 KiB
Factor
60 lines
1.4 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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make compiler.cfg.instructions compiler.cfg.instructions.syntax
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compiler.cfg.registers ;
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IN: compiler.cfg.stack-frame
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SYMBOL: frame-required?
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SYMBOL: frame-size
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SYMBOL: spill-counts
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: init-stack-frame-builder ( -- )
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frame-required? off
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0 frame-size set ;
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GENERIC: compute-frame-size* ( insn -- )
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M: ##frame-required compute-frame-size*
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frame-required? on
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n>> frame-size [ max ] change ;
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M: _spill-integer compute-frame-size*
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drop frame-required? on ;
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M: _spill-float compute-frame-size*
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drop frame-required? on ;
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M: insn compute-frame-size* drop ;
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: compute-frame-size ( insns -- )
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[ compute-frame-size* ] each ;
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GENERIC: insert-pro/epilogues* ( insn -- )
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M: ##frame-required insert-pro/epilogues* drop ;
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M: ##prologue insert-pro/epilogues*
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drop frame-required? get [ _prologue ] when ;
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M: ##epilogue insert-pro/epilogues*
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drop frame-required? 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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init-stack-frame-builder
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[
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[ compute-frame-size ]
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[ insert-pro/epilogues ]
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bi
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] change-instructions
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frame-size get >>frame-size
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] with-scope ;
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