From: Arnd Bergmann <a...@arndb.de>
Date: Tue, 19 Sep 2017 23:32:33 +0200
> On Tue, Sep 19, 2017 at 11:02 PM, David Miller <da...@davemloft.net> wrote:
>> What cpu did you test the object code generation upon and does that
>> cpu have branch prediction hints in the target you are building for?
>
> This was a randconfig build targetting ARMv5. I'm pretty sure that has
> no such hint instructions.
I just tested on sparc64 and it changed the branch prediction:
.L2157:
- brz,pn %i3, .L1898 ! first_ackt,
+ brz,pt %i2, .L1898 ! first_ackt,
mov -1, %o2 !, seq_rtt_us
