[llvm-branch-commits] [llvm] release/19.x: [LoongArch] Codegen for concat_vectors with LASX (PR #107948)

[via llvm-branch-commits]

wangleiat wrote:

I'm very sorry for the late reply due to the holiday.

> Is this PR a fix for a regression or a critical issue?

Yes, this is a critical issue. Without this patch, the compilation may hang when lasx is enabled.

> What is the risk of accepting this into the release branch?

No risk.
 
> What is the risk of NOT accepting this into the release branch?

As mentioned above, in some cases, the compilation will hang when lasx is enabled. For example, the newly added regression test in this patch.

https://github.com/llvm/llvm-project/pull/107948