This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [PATCH] Fix optimization regression in constant folder

From: Eric Botcazou <ebotcazou at adacore dot com>
To: "Richard Guenther" <richard dot guenther at gmail dot com>
Cc: gcc-patches at gcc dot gnu dot org, "Ian Lance Taylor" <iant at google dot com>
Date: Sat, 29 Sep 2007 13:08:59 +0200
Subject: Re: [PATCH] Fix optimization regression in constant folder
References: <200709171539.26653.ebotcazou@adacore.com> <200709290820.14448.ebotcazou@adacore.com> <84fc9c000709290327r2fec6a1fw6433ee24f9ed40aa@mail.gmail.com>

> You still didn't come up with an optimization testcase which I asked for
> in the initial reply.

Because it's time consuming.  The problem was identified on a 4.1-based 
compiler (you applied the patch on the 4.1 branch too so it was picked for 
our pre-production compiler and broke 2 big proprietary testcases there).

Things have changed between 4.1 and 4.3 so the 2 testcases don't fail with the 
latter like with the former and further work would be required.

> And I won't make the decision on the patch (because I'm not convinced), but
> defer that to Ian. 

OK.

-- 
Eric Botcazou

Follow-Ups:
- Re: [PATCH] Fix optimization regression in constant folder
  - From: Richard Guenther

References:
- [PATCH] Fix optimization regression in constant folder
  - From: Eric Botcazou
- Re: [PATCH] Fix optimization regression in constant folder
  - From: Eric Botcazou
- Re: [PATCH] Fix optimization regression in constant folder
  - From: Richard Guenther

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]