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From: | Richard Henderson |
Subject: | Re: [PATCH 5/5] target/loongarch: div if x/0 set dividend to 0 |
Date: | Sat, 17 Sep 2022 12:12:02 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 |
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.
r~
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