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Also identify pure functions using assigned-var

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This identifies cases where a pure function exits but is defined inline rather than at the top-level.
This commit is contained in:
Justin Ethier 2017-05-04 05:11:46 +00:00
parent b74213ec2d
commit c7aa3700ea
1 changed files with 12 additions and 5 deletions
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17
scheme/cyclone/cps-optimizations.sld
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@ -1075,11 +1075,18 @@
;; Does ref refer to a pure function (no side effects)?
(let ((var (adb:get/default (car exp) #f)))
(if var
(let ((lid (adbv:defines-lambda-id var)))
(if lid
(with-fnc! lid (lambda (fnc)
(if (not (adbf:side-effects fnc))
(set! pure-fnc #t))))))))
(let ((lid (adbv:defines-lambda-id var))
(assigned-val (adbv:assigned-value var)))
(cond
(lid
(with-fnc! lid (lambda (fnc)
(if (not (adbf:side-effects fnc))
(set! pure-fnc #t)))))
((ast:lambda? assigned-val)
(with-fnc! (ast:lambda-id assigned-val) (lambda (fnc)
(if (not (adbf:side-effects fnc))
(set! pure-fnc #t)))))
))))
;;
(with-var (car exp) (lambda (var)
(let ((val (adbv:assigned-value var)))