Re: Debug optimized code

rcmetzger <rcmetzger@grandecom.net>
Wed, 17 Sep 2008 06:30:09 -0700 (PDT)

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From: rcmetzger <rcmetzger@grandecom.net>
Newsgroups: comp.compilers
Date: Wed, 17 Sep 2008 06:30:09 -0700 (PDT)
Organization: Compilers Central
References: 08-09-076 08-09-077
Keywords: debug, optimize
Posted-Date: 17 Sep 2008 17:55:30 EDT

On Sep 17, 5:24 am, RR <rajaram.officema...@gmail.com> wrote:
> "This white paper provides an outline on the concept of debugging
> optimized code. This paper discusses the way compiler transformations
> affect debugging, the practical problems in debugging optimizing code
> and techniques that can be used to overcome the problems in debugging
> optimized code.
>
> There is a lot of activity currently on this subject. But after all
> this, no usable product has evolved till date to debug optimized code.


Incorrect. Convex Computer Corporation shipped a production debugger
(CXdb) that did a good job of handling optimized code, over 15 years
ago. I didn't work on the product, but I did use it.


See the following


ACM SIGPLAN '92 (1992) pp 1-11, G. Brooks et al, "A New Approach to
Debugging Optimized Code"


Debugger program which includes correlation of computer program source
code with optimized object code
United States Patent 5371747
Brooks, Gary S. (Garland, TX), Simmons, Steven M. (Dallas, TX)

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