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Re: [PATCH i386] Enable -freorder-blocks-and-partition
- From: Martin LiÅka <marxin dot liska at gmail dot com>
- To: Jeff Law <law at redhat dot com>
- Cc: Teresa Johnson <tejohnson at google dot com>, Jan Hubicka <hubicka at ucw dot cz>, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Date: Mon, 2 Dec 2013 17:52:56 +0100
- Subject: Re: [PATCH i386] Enable -freorder-blocks-and-partition
- Authentication-results: sourceware.org; auth=none
- References: <CAAe5K+XeggoZGd8OgdGhh49RF-=5JbBdOEg+j2ZyYBCno0GfdA at mail dot gmail dot com> <20131119154407 dot GA1742 at kam dot mff dot cuni dot cz> <CAAe5K+WL3a1uMUrX-K7vgrr5T9RTrZH1rCYsej-mTdC_HtfigQ at mail dot gmail dot com> <528BA299 dot 7040606 at redhat dot com> <CAAe5K+Vc7RXzNqs9mMn=j=vtsHaSjhFc9VhiMfrLCGmxM++6eQ at mail dot gmail dot com> <CAObPJ3OZHvET=QNmNtx9ZjaHZk=GhokWjoF2njr5mgwcv2ogDA at mail dot gmail dot com> <20131128140655 dot GA20730 at kam dot mff dot cuni dot cz> <CAAe5K+UFRuLZAE_WOnyG-At220DNf9QjJh-BagugwtNKJYSYAQ at mail dot gmail dot com> <529CB252 dot 4070806 at redhat dot com>
Dear Teresa,
I will today double check if the graphs are correct :)
Martin
On 2 December 2013 17:16, Jeff Law <law@redhat.com> wrote:
> On 12/02/13 08:16, Teresa Johnson wrote:
>>
>>
>> I'm wondering if the -fno-reorder-blocks-and-partition graph really
>> had that disabled. I am surprised that the size of the .text and
>> .text.hot did not shrink from splitting.
>
> Could be due to needing longer jump opcodes to reach the unlikely sections.
> jeff
>