Re: Dataflow and function calls

Yuri Gribov <tetra2005@googlemail.com>
Wed, 29 Jul 2009 18:17:45 +0400

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Re: Dataflow and function calls kamalpr@gmail.com (kamal) (2009-08-01)
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From: Yuri Gribov <tetra2005@googlemail.com>
Newsgroups: comp.compilers
Date: Wed, 29 Jul 2009 18:17:45 +0400
Organization: Compilers Central
References: 09-07-084 09-07-106
Keywords: analysis, optimize
Posted-Date: 29 Jul 2009 22:59:35 EDT

Thank you for your answer but please note that I was not asking about
alias analysis.


My problem is not finding out what variables may be changed by call
(or by some ambigous command) but how to incorporate this information
into dataflow framework. We have 2 main opportunities: consider that
call kills reaching definitions or that it does not. Both lead to
problems during optimization (see my first message).


Up to now I have found only one online course which mentions this
problem - Rajiv Gupta's Compiler Construction (see slide 7 in
http://www.cs.ucr.edu/~gupta/teaching/201-09/My3.pdf ). Unfortunately
it does not give any details.


--
s UWAVENIEM,
`RIJ


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