heiher wrote:

> @heiher this would still break the ABI right? so it would still create 
> problem for downstream users like rust?
> 
> cc @nikic @arsenm @tgross35

After deciding that [FPU does not support 
fp16](https://github.com/llvm/llvm-project/pull/109368#issuecomment-2423879356),
 there’s no longer any ABI-breaking impact. Without this patch, LoongArch’s 
software emulation for fp16 operations still has [correctness 
issues](https://github.com/llvm/llvm-project/issues/97975). This is why 
downstream software depends on it, which is the reason for my request. Thanks.

https://github.com/llvm/llvm-project/pull/109093
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