More on Control Dependencies for Loops

hagerman@ece.cmu.edu (John Hagerman)
Thu, 22 Apr 1993 17:03:55 GMT

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Control Dependencies for Loops hagerman@ece.cmu.edu (1993-04-20)
More on Control Dependencies for Loops hagerman@ece.cmu.edu (1993-04-22)
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Newsgroups: comp.compilers
From: hagerman@ece.cmu.edu (John Hagerman)
Keywords: analysis, question
Organization: Carnegie Mellon University
References: 93-04-074
Date: Thu, 22 Apr 1993 17:03:55 GMT

A couple of days ago I asked why "loop-carried" control dependencies
should be included. I got a couple of responses by mail saying that
my basic blocks were wrong. I don't think this has anything to do
with my question; the point is that I can construct a loop that will
have such a dependence. Here's another try:


    do S while (E);


This has a control dependence from E to S through the backedge. I
hope this comment helps to clarify my question...


Thanks - John
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hagerman@ece.cmu.edu
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