[llvm-branch-commits] [clang] release/21.x: [clang][LoongArch] Ensure `target("lasx")` implies LSX support (#153542) (PR #153739)

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llvmbot wrote:

@SixWeining @SixWeining What do you think about merging this PR to the release branch?

https://github.com/llvm/llvm-project/pull/153739