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Re: remove dead code in df.{h,c}
- From: Daniel Berlin <dberlin at dberlin dot org>
- To: Ben Elliston <bje at au1 dot ibm dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Thu, 25 Nov 2004 20:35:02 -0500
- Subject: Re: remove dead code in df.{h,c}
- References: <87vfbtjtuu.fsf@au.ibm.com>
On Fri, 2004-11-26 at 12:12 +1100, Ben Elliston wrote:
> There's a lot of code code in here:
>
<snip df.c stuff>
Sadly, it was all written to be of use to people who wanted to write
sane, rather than completely ad-hoc, dataflow optimizers for our
backend. This just didn't happen, for a variety of reasons.
:)
A lot of the functions were there so that people wouldn't do it for lack
of support functions that did what they want.
The only one i really object to changing is iterative_dataflow.
There are a lot of things that *should* be using it, and i intend to
change them to use it sometime in the 4.1 lifetime.
It was always intended to be an external interface.
--Dan