[PATCH] [RFC] Deprecated feature in TableGen

[Tim Northover]

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).

Though that doesn't mean other architectures couldn't interpret it
their own way, of course.

Cheers.

Tim.