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Re: [PATCH] riscv: Add helper to make NaN-boxing for FP register


From: Ian Jiang
Subject: Re: [PATCH] riscv: Add helper to make NaN-boxing for FP register
Date: Tue, 28 Jan 2020 08:39:56 +0800

The patch description is modified and a new version is committed.
--
Ian Jiang

Richard Henderson <address@hidden> 于2020年1月28日周二 上午1:38写道:
>
> On 1/27/20 6:10 AM, Ian Jiang wrote:
> > The function that makes NaN-boxing when a 32-bit value is assigned
> > to a 64-bit FP register is split out to a helper gen_nanbox_fpr().
> > Then it is applied in translating of the FLW instruction.
> >
> > This also applies for other instructions when the RVD extension is
> > present, such as FMV.W.W, FADD.S, FSUB.S and so on.
>
> I wouldn't mention this yet, as it begs the question of what you are doing
> about it.  Which is nothing, yet, since that will apply to a follow-up patch.
>
>
> >
> > Signed-off-by: Ian Jiang <address@hidden>
> > ---
> >  target/riscv/insn_trans/trans_rvf.inc.c | 17 +++++++++++++++--
> >  1 file changed, 15 insertions(+), 2 deletions(-)
>
> Reviewed-by: Richard Henderson <address@hidden>
>
>
> r~



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