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From: Matt Wette <matt.wette@gmail.com>
To: guile-devel@gnu.org
Subject: Re: flow-analysis and Offner's notes
Date: Sat, 9 Jun 2018 08:20:57 -0700	[thread overview]
Message-ID: <79773674-92b2-5d0a-190b-434ef5a39554@gmail.com> (raw)
In-Reply-To: <85a2a273-6e21-9f57-3a43-b32607a811f3@gmail.com>

On 06/09/2018 06:34 AM, Matt Wette wrote:
> On 06/08/2018 05:17 PM, Matt Wette wrote:
>> Andy Windo's blog on flow-analysis in Guile references Offner's 
>> "Notes on Graph
>> Algorithms Used in Optimizing Compilers"?  Anyone read this 
>> manuscript?  Lemma
>> 2.2 says, in a flow-graph, if x>>z and y>>z, then either x>>y or 
>> y>>x.  The proof
>> uses the argument that the path from s, the start, to z has to 
>> include both x and y.
>> I'm not seeing that.  Consider a graph s->x, s->y, x->z and y->z. 
>> What am I missing?

I was missing the definition of "dominates."
Sorry for the interruption.
Now need to think about this.



      reply	other threads:[~2018-06-09 15:20 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-09  0:17 flow-analysis and Offner's notes Matt Wette
2018-06-09 13:34 ` Matt Wette
2018-06-09 15:20   ` Matt Wette [this message]

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