Global pointers for optimization

gclind01@starbase.spd.louisville.edu (George C. Lindauer)
20 Dec 1996 17:20:32 -0500

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Global pointers for optimization gclind01@starbase.spd.louisville.edu (1996-12-20)
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From: gclind01@starbase.spd.louisville.edu (George C. Lindauer)
Newsgroups: comp.compilers
Date: 20 Dec 1996 17:20:32 -0500
Organization: University of Louisville, Louisville KY USA
Keywords: optimize, question

Hi,


I'm implementing a routine that keeps track of what pointers point to
for use in optimization. I'm looking for comments as to how important
it is to keep track of global pointers (e.g. defined outside a
procedure). These could potentially point to any global variable
after a subroutine call... is it worth the extra effort to determine
when they can be pointed at any global variable and when they are
definitely pointed at some global or local variable?


David


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