This is the mail archive of the gcc-help@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: Storing optimization choices in an ELF section

From: ludo at gnu dot org (Ludovic Courtès)
To: Florian Weimer <fweimer at gapps dot redhat dot com>
Cc: gcc-help at gcc dot gnu dot org
Date: Sat, 03 Jun 2017 15:46:35 +0200
Subject: Re: Storing optimization choices in an ELF section
Authentication-results: sourceware.org; auth=none
References: <8737bjzxkf.fsf@gnu.org> <CAO3sB50+BCwk-T-4N7cQ1w0b94p+-w9fiV3WcfYFn1hgz5-HcQ@mail.gmail.com>

Florian Weimer <fweimer@gapps.redhat.com> skribis:

> On Thu, Jun 1, 2017 at 2:45 PM, Ludovic Courtès <ludo@gnu.org> wrote:
>> A proprietary compiler stores information about optimizations it has
>> made (loop unrolling, vectorization, etc.) in a ‘.debug_opt_report’ ELF
>> section.  This information can later be exploited by performance
>> analysis tools, which can help understand performance.
>>
>> Has there been any thought on implementing something similar in GCC?
>
> Yes: https://fedoraproject.org/wiki/Toolchain/Watermark
>
> Nick Clifton has been working on the binutils side of the implementation.

Awesome, thanks.

Ludo’.

References:
- Storing optimization choices in an ELF section
  - From: Ludovic Courtès
- Re: Storing optimization choices in an ELF section
  - From: Florian Weimer

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