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Re: [22.1.90]: Point before start of properties

From: Stefan Monnier
Subject: Re: [22.1.90]: Point before start of properties
Date: Thu, 21 Feb 2008 11:02:25 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.50 (gnu/linux)

>     So 20 years after GCC was a pioneer of the idea that it should be
>     possible to debug optimized code, we are back at printf debugging
>     because GCC developers no longer think it's important enough.

> I am the one who made it possible to debug optimized code.
> And I did it in a very simple way: I deleted the statement that
> turned off -g when -O was enabled.

> It's one thing to let people try to debug optimized code,
> and quite another to go to great lengths to make it easier.
> GCC has never done that.

Debugging optimized code is an open research problem, fundamentally
very difficult.  Basically, it's an unsolvable problem,
i.e. a wrong question.


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