[llvm] [X86] Emit LSDA call site info for inline asm calls marked `unwind` (PR #218276)

[Reid Kleckner via llvm-commits]

rnk wrote:

Thanks, I think the code change is correct. I enhanced the test case a bit here, please merge the label pattern matching to the PR, or feel free to improve on it: 
https://github.com/rnk/llvm-project/commit/527faa3e35280c39a2f9d6490adfe7ce28e49b3c

Otherwise, the .LtmpN labels are brittle.

https://github.com/llvm/llvm-project/pull/218276