Re: [PATCH 5/5] target/loongarch: div if x/0 set dividend to 0

[gaosong]

在 2022/9/17 下午6:12, Richard Henderson 写道:
> On 9/17/22 11:12, gaosong wrote:
> > 在 2022/9/17 下午4:59, Qi Hu 写道:
> > > On 2022/9/17 15:59, Song Gao wrote:
> > > > div.d, div.du, div,w, div.wu, the LoongArch host if x/0  the result 
> > > > is 0.
> > >
> > > The message has a typo: "div,w" => "div.w"
> > >
> > > Also I don't know why we need to do this, since the manual say: 
> > > "When the divisor is 0, the result can be any value".
> > I tested on LoongArch host,   the result is always 0.
>
> But it is legal for a different loongarch host implementation to 
> return some other value.  Therefore the test itself is not correct.
I think the manual maybe not correct,  the hardware engineer said that 
they need to comfirm  whether the result is always 0.

Thanks.
Song Gao
> r~