Attached is the new patch.

Tested with bootstrap, profiledbootstrap and spec.

Thanks,

-Rong

On Thu, Jan 16, 2014 at 9:30 AM, Rong Xu <xur@google.com> wrote:
> Ping.
>
> -Rong
>
> On Mon, Jan 13, 2014 at 12:43 PM, Rong Xu <xur@google.com> wrote:
>> Hi,
>>
>> This patch implements gcov-tool, a offline profile processing tool.
>> This version supports merging two profiles with weights, and scaling
>> the profile with a floating-point / fraction weight.
>>
>> Earlier discussion can be found
>> http://gcc.gnu.org/ml/gcc-patches/2013-11/msg02631.html
>>
>> In the discussion of the earlier patch, Honza wanted a separated
>> patch for interface change for gcov_merge_*() functions. In this patch,
>> the changes for gcov_merge_*() are minimal by using a wrapper function.
>> So I include everything in this patch.
>>
>> Tested with bootstrap profiledboostrap and SPEC2006 profiles.
>>
>> Thanks,
>>
>> -Rong