[RFC] Remove -freorder-blocks-and-partition

[Xinliang David Li]

On Mon, Jul 25, 2011 at 3:23 AM, Paolo Bonzini <bonzini@gnu.org> wrote:
> On 07/25/2011 06:42 AM, Xinliang David Li wrote:
>>
>> FYI  the performance impact of this option with SPEC06 (built with
>> google_46 compiler and measured on a core2 box).  The base line number
>> is FDO, and ref number is FDO + reorder_with_partitioning.
>>
>> xalancbmk improves>  3.5%
>> perlbench improves>  1.5%
>> dealII and bzip2 degrades about 1.4%.
>>
>> Note the partitioning scheme is not tuned at all -- there is not even
>> a tunable parameter to play with.
>
> Did you check what is pushed down to the cold section in these cases?

I have not done any analysis on them .

David
>
> Paolo
>