[PATCH 1/2] arm64: bpf: add 'store immediate' instruction

Will Deacon will.deacon at arm.com
Wed Nov 11 04:12:56 PST 2015


On Tue, Nov 10, 2015 at 06:45:39PM -0800, Z Lim wrote:
> On Tue, Nov 10, 2015 at 2:41 PM, Yang Shi <yang.shi at linaro.org> wrote:
> > aarch64 doesn't have native store immediate instruction, such operation
> 
> Actually, aarch64 does have "STR (immediate)". For arm64 JIT, we can
> consider using it as an optimization.

Yes, I'd definitely like to see that in preference to moving via a
temporary register.

Will



More information about the linux-arm-kernel mailing list