asb added a comment.

In D102839#2784585 <https://reviews.llvm.org/D102839#2784585>, @kito-cheng 
wrote:

> Personally I prefer to deprecate `-mno-div` soon, but based on the rule for 
> RISC-V GNU toolchain, it need to wait `Zmmul` extension frozen.
> My plan is deprecate the `-mno-div` and emit warning to tell user should use 
> `Zmmul` instead once it frozen.

Thanks for clarifying Kito. In that case, I think having clang support -mno-div 
in order to match the GNU toolchain makes sense, and we can later follow GCC in 
deprecating it if they do. Given how long it can take to ratify extensions, I'm 
wary of making assumptions about when zmmul may be ratified.


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