26 lines
736 B
Factor
26 lines
736 B
Factor
! Copyright (C) 2009 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors compiler.cfg.linearization grouping kernel math
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namespaces sequences ;
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IN: compiler.cfg.linear-scan.numbering
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: number-instruction ( n insn -- n' )
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[ insn#<< ] [ drop 2 + ] 2bi ;
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: number-instructions ( cfg -- )
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linearization-order
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0 [ instructions>> [ number-instruction ] each ] reduce
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drop ;
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SYMBOL: check-numbering?
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ERROR: bad-numbering bb ;
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: check-block-numbering ( bb -- )
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dup instructions>> [ insn#>> ] map sift [ <= ] monotonic?
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[ drop ] [ bad-numbering ] if ;
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: check-numbering ( cfg -- )
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check-numbering? get
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[ linearization-order [ check-block-numbering ] each ] [ drop ] if ;
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