[llvm] [KernelInfo] Implement new LLVM IR pass for GPU code analysis (PR #102944)

[Shilei Tian via llvm-commits]

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+; See ./README.md for how to maintain the LLVM IR in this test.
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shiltian wrote:

Oh I c. Didn't catch that part.

https://github.com/llvm/llvm-project/pull/102944