Re: [PATCH 12/24] tcg/aarch64: Implement negsetcond_*

[Richard Henderson]

On 8/10/23 09:58, Peter Maydell wrote:
> On Thu, 10 Aug 2023 at 17:55, Richard Henderson
> <richard.henderson@linaro.org> wrote:
> > On 8/10/23 09:39, Peter Maydell wrote:
> > > > +    case INDEX_op_negsetcond_i32:
> > > > +        a2 = (int32_t)a2;
> > > > +        /* FALLTHRU */
> > >
> > > I see this is what we already do for setcond and movcond,
> > > but how does it work when the 2nd input is a register?
> > > Or is reg-reg guaranteed to always use the _i64 op?
> >
> > For reg-reg, a2 < 31, so the sign-extend does nothing.
>
> OK. Do we document somewhere what a TCGArg is?

No.  I should do that...


r~