This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH Atom][PR middle-end/44382] Tree reassociation improvement
On Thu, Jul 14, 2011 at 11:59 AM, Ilya Enkovich <enkovich.gnu@gmail.com> wrote:
> 2011/7/14 Richard Guenther <richard.guenther@gmail.com>:
>>
>> Btw, rather than a new target hook and an option I suggest to use
>> a --param which default you can modify in the backend.
>>
>> Richard.
>>
>
> Introduced target hook does not just define default value for option.
> It is meant to make decision in each particular case. For now it
> returns a constant value but march dependent heuristics will be added
> later.
But then how comes the option to override it is useful? It isn't dependent
on the particular case. At least the option should be a --param.
Richard.
> Ilya
>