On 3/11/2021 12:42 AM, Peter Zijlstra wrote:
On Thu, Mar 11, 2021 at 05:36:06AM +0200, Jarkko Sakkinen wrote:
Does it do any harm to put it there unconditionally?
Blows up your text footprint and I$ pressure. These instructions are 4
bytes each.
Aside from that, they're a NOP, so only consume front-end resources
(hopefully) on older CPUs and when IBT is disabled.
Thanks Peter. I think probably we'll do the macro Boris suggested.
That takes care of the visual clutter, and eliminates the need of using
.byte when the assembler is outdated.
--
Yu-cheng
