[PATCH] [RFC] Deprecated feature in TableGen
Tom Stellard
tom at stellard.net
Wed Aug 14 09:57:33 PDT 2013
On Wed, Aug 14, 2013 at 05:35:47PM +0100, Tim Northover wrote:
> Hi Tom,
>
> > Does deprecating an instruction mean the hardware doesn't support it or
> > does it mean the hardware supports it, but the compiler does not?
>
> Possibly neither. I think in this context it means that ARM has given
> warning that future versions of the architecture may/will not support
> the instruction. The compiler probably will still assemble it, and may
> even still emit it (though probably shouldn't when compiling for v8).
>
Ok, that makes sense. So then is the purpose of marking instructions as
deprecated to warn people who are hand writing assembly code?
-Tom
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