Enabling -frename-registers?

[David Edelsohn]

On Fri, Apr 29, 2016 at 9:32 AM, Bernd Schmidt <bschmidt@redhat.com> wrote:
> On 04/29/2016 03:02 PM, David Edelsohn wrote:
>>
>> How has this show general benefit for all architectures to deserve
>> enabling it by default at -O2?
>
>
> It should improve postreload scheduling in general, and it can also help
> clear up bad code generation left behind by register allocation.

Did you test the actual performance benefit on any architectures,
especially architectures other than x86?

Thanks, David