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Carl Shapiro
cmucl
Commits
a75c1df5
Commit
a75c1df5
authored
33 years ago
by
ram
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compiler/dfo.lisp
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-7
11 additions, 7 deletions
compiler/dfo.lisp
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compiler/dfo.lisp
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a75c1df5
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@@ -7,7 +7,7 @@
;;; Scott Fahlman or slisp-group@cs.cmu.edu.
;;;
(
ext:file-comment
"$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/dfo.lisp,v 1.1
6
1991/1
1/16 13:14:47
ram Exp $"
)
"$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/dfo.lisp,v 1.1
7
1991/1
2/11 11:54:53
ram Exp $"
)
;;;
;;; **********************************************************************
;;;
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@@ -216,12 +216,16 @@
;;; Fun is already in Component, then we just return that component.
;;;
;;; If the function is in an initial component, then we move its head and
;;; tail to Component and add it to Component's lambdas. We then do a
;;; Find-DFO-Aux starting at the head of Fun. If this flow-graph walk
;;; encounters another component (which can only happen due to a non-local
;;; exit), then we move code into that component instead. We then recurse on
;;; all functions called from Fun, moving code into whichever component the
;;; preceding call returned.
;;; tail to Component and add it to Component's lambdas. It is harmless to
;;; move the tail (even though the return might be unreachable) because if the
;;; return is unreachable it (and its successor link) will be deleted in the
;;; post-deletion pass.
;;;
;;; We then do a Find-DFO-Aux starting at the head of Fun. If this
;;; flow-graph walk encounters another component (which can only happen due to
;;; a non-local exit), then we move code into that component instead. We then
;;; recurse on all functions called from Fun, moving code into whichever
;;; component the preceding call returned.
;;;
;;; If Fun is in the initial component, but the Block-Flag is set in the
;;; bind block, then we just return Component, since we must have already
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