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Remove "sym" from $use-map

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* module/language/cps/dfg.scm ($use-map): Remove "sym" from use-map;
  it's redundant.  Adapt callers.
This commit is contained in:
Andy Wingo 2014-03-30 11:36:59 +02:00
parent cec43eb8f6
commit b99553301c
1 changed files with 10 additions and 11 deletions
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21
module/language/cps/dfg.scm
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@ -124,9 +124,8 @@
(nvars dfg-nvars))
(define-record-type $use-map
(make-use-map sym def uses)
(make-use-map def uses)
use-map?
(sym use-map-sym)
(def use-map-def)
(uses use-map-uses set-use-map-uses!))
@ -711,6 +710,7 @@ BODY for each body continuation in the prompt."
(define (compute-live-variables fun dfg)
(let* ((var-map (make-hash-table))
(min-var (dfg-min-var dfg))
(nvars (dfg-nvars dfg))
(cfa (analyze-control-flow fun dfg #:reverse? #t
#:add-handler-preds? #t))
@ -730,10 +730,10 @@ BODY for each body continuation in the prompt."
(when (< n (vector-length use-maps))
(match (vector-ref use-maps n)
(#f (lp (1+ n)))
(($ $use-map var def uses)
(($ $use-map def uses)
(let ((v (counter++)))
(hashq-set! var-map var v)
(vector-set! syms v var)
(hashq-set! var-map (+ n min-var) v)
(vector-set! syms v (+ n min-var))
(for-each (lambda (def)
(vector-push! defv (cfa-k-idx cfa def) v))
(block-preds (lookup-block def dfg)))
@ -783,13 +783,12 @@ BODY for each body continuation in the prompt."
(define (add-def! var def-k)
(unless def-k
(error "Term outside labelled continuation?"))
(vector-set! use-maps (- var min-var)
(make-use-map var def-k '())))
(vector-set! use-maps (- var min-var) (make-use-map def-k '())))
(define (add-use! var use-k)
(match (vector-ref use-maps (- var min-var))
(#f (error "Variable out of scope?" var))
((and use-map ($ $use-map sym def uses))
((and use-map ($ $use-map def uses))
(set-use-map-uses! use-map (cons use-k uses)))))
(define* (declare-block! label cont parent
@ -954,14 +953,14 @@ BODY for each body continuation in the prompt."
(match dfg
(($ $dfg conts blocks use-maps min-label nlabels min-var nvars)
(match (vector-ref use-maps (- var min-var))
(($ $use-map sym def uses)
(($ $use-map def uses)
def)))))
(define (lookup-uses var dfg)
(match dfg
(($ $dfg conts blocks use-maps min-label nlabels min-var nvars)
(match (vector-ref use-maps (- var min-var))
(($ $use-map sym def uses)
(($ $use-map def uses)
uses)))))
(define (lookup-block-scope k dfg)
@ -1023,7 +1022,7 @@ BODY for each body continuation in the prompt."
(match dfg
(($ $dfg conts blocks use-maps min-label nlabels min-var nvars)
(match (vector-ref use-maps (- sym min-var))
(($ $use-map _ def uses)
(($ $use-map def uses)
(or-map
(lambda (use)
(match (find-expression (lookup-cont use dfg))