From: Maxim Kuvyrkov <maxim@codesourcery.com>
To: naga raj <gnuuser.raj@gmail.com>
Cc: gcc-help <gcc-help@gcc.gnu.org>
Subject: Re: loop-unrolling in gcc-4.6.2
Date: Fri, 30 Nov 2012 02:13:00 -0000 [thread overview]
Message-ID: <92FF49B3-1180-4E33-BE04-ADE404BE8DC0@codesourcery.com> (raw)
In-Reply-To: <CAKuVEhCq5RHDvKziTX9kaXo8jrT+JeHNXrWnJe+n8JTRMqRBDg@mail.gmail.com>
On 26/11/2012, at 9:31 PM, naga raj wrote:
> On Mon, Nov 26, 2012 at 12:13 PM, Maxim Kuvyrkov <maxim@codesourcery.com> wrote:
>> --param
>
> Thanks Maxim Kuvyrkov for your inputs. I have tried all the flags that
> you have suggested but they didn't help.
>
> As you suggested I will investigate where this loop-unrolling is
> blocked but are there any specific areas to be look in to the target
> regarding this??
I doubt you can productively troubleshoot this without a compiler built for debugging (i.e., non-boostrapped built with "-O0 -g"). When you have that, you can start stepping through loop optimizers and check why they are deciding not to unroll your loops.
--
Maxim Kuvyrkov
CodeSourcery / Mentor Graphics
next prev parent reply other threads:[~2012-11-30 2:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-23 15:02 naga raj
2012-11-26 6:43 ` Maxim Kuvyrkov
2012-11-26 8:31 ` naga raj
2012-11-30 2:13 ` Maxim Kuvyrkov [this message]
2012-11-30 4:02 ` naga raj
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