Annoyance with new integer promotion deprecations

[Steven Schveighoffer]

On 2/5/18 7:47 PM, Adam D. Ruppe wrote:
> On Tuesday, 6 February 2018 at 00:08:12 UTC, Steven Schveighoffer wrote:
>> I think the CPU has to do extra work to throw away that high bit, no?
> 
> No, the x86 has never had any trouble with this, and I don't think ARM 
> does either (worst case you load it as int, then save it as byte).

But you are saving to an int, not a byte. Anyway, I don't really know 
the specifics of it. I'm not enough of an assembly buff to know the 
differences between what instructions are used or how much they cost.

-Steve