Re: optimization/6822: GCC 3.1.1 - Internal compiler error in extract_insn, at recog.c:2132

[Glen Nakamura <glen@imodulo.com>]

The following reply was made to PR optimization/6822; it has been noted by GNATS.

From: Glen Nakamura <glen@imodulo.com>
To: Eric Botcazou <ebotcazou@libertysurf.fr>
Cc: gcc-gnats@gcc.gnu.org, gcc-bugs@gcc.gnu.org
Subject: Re: optimization/6822: GCC 3.1.1 - Internal compiler error in extract_insn, at recog.c:2132
Date: Tue, 28 May 2002 14:36:40 -1000

 On Wed, May 29, 2002 at 01:29:35AM +0200, Eric Botcazou wrote:
 > May I suggest you to add thorough cross-comments to the code ? I see you did
 > so for the second optimization and I think it would be nice to do it for the
 > first one too (saying that the current location of the optimization causes
 > the second one to be altered).
 
 I'll add a few comments and post an updated patch...
 
 > It looks like this doesn't fit with the GCC policy on the matter, but it
 > could also be worth leaving the original code inside an #if 0/#endif or a
 > comment.
 
 Hmm, I suppose we could just leave the original code intact.  I couldn't
 think of a case when it would actually be reached, but it's not a
 lot of code and maybe I overlooked something.  Anyway, in the future,
 perhaps changes in the folding code will expose those cases?
 
 - Glen Nakamura