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Re: Cfg and Dfg in gcc

From: Ian Lance Taylor <iant at google dot com>
To: sandeep soni <saintiwara at gmail dot com>
Cc: gcc-help at gcc dot gnu dot org
Date: Tue, 06 Oct 2009 07:54:27 -0700
Subject: Re: Cfg and Dfg in gcc
References: <43e4d4d20910060711h1154625chb3e19655a5728f34@mail.gmail.com>

sandeep soni <saintiwara@gmail.com> writes:

> given a program,say readelf.c, how can i,with the help of gcc,find the
> cfg and dfg for this program?..

I don't know of any easy way to do this.  You can't extract them in
any programmable way, unless you write a plugin.  You can look in the
dump files, but they are difficult to parse and will change as gcc
changes.

Ian

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