[PATCH] [RFC] Deprecated feature in TableGen

[James Molloy]

> Ok, that makes sense.  So then is the purpose of marking instructions as
> deprecated to warn people who are hand writing assembly code?

Yes, or as part of a disassembler.


On 14 August 2013 17:57, Tom Stellard <tom at stellard.net> wrote:

> 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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