47 lines
1.8 KiB
Factor
47 lines
1.8 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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IN: compiler.cfg.value-numbering
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: insn>vn ( insn -- vn ) >expr simplify ; inline
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GENERIC: make-value-node ( insn -- )
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M: ##cond-branch make-value-node src>> live-vreg ;
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M: ##unary make-value-node [ insn>vn ] [ dst>> ] bi set-vn ;
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M: ##nullary make-value-node drop ;
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M: ##load-literal make-value-node [ insn>vn ] [ dst>> ] bi set-vn ;
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M: ##peek make-value-node [ insn>vn ] [ dst>> ] bi set-vn ;
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M: ##replace make-value-node reset-value-graph ;
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M: ##inc-d make-value-node reset-value-graph ;
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M: ##inc-r make-value-node reset-value-graph ;
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M: ##stack-frame make-value-node reset-value-graph ;
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M: ##call make-value-node reset-value-graph ;
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M: ##jump make-value-node reset-value-graph ;
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M: ##return make-value-node reset-value-graph ;
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M: ##intrinsic make-value-node uses-vregs [ live-vreg ] each ;
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M: ##dispatch make-value-node reset-value-graph ;
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M: ##dispatch-label make-value-node reset-value-graph ;
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M: ##allot make-value-node drop ;
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M: ##write-barrier make-value-node drop ;
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M: ##gc make-value-node reset-value-graph ;
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M: ##replace make-value-node reset-value-graph ;
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M: ##alien-invoke make-value-node reset-value-graph ;
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M: ##alien-indirect make-value-node reset-value-graph ;
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M: ##alien-callback make-value-node reset-value-graph ;
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M: ##callback-return make-value-node reset-value-graph ;
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M: ##prologue make-value-node reset-value-graph ;
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M: ##epilogue make-value-node reset-value-graph ;
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M: ##branch make-value-node reset-value-graph ;
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M: ##if-intrinsic make-value-node uses-vregs [ live-vreg ] each ;
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: init-value-numbering ( -- )
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init-value-graph
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init-expressions
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init-liveness ;
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: value-numbering ( instructions -- instructions )
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init-value-numbering
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[ [ make-value-node ] [ propagate ] bi ] map
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[ eliminate ] map
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sift ;
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