[llvm] Revert 112e49b38150b8bfdef01434309d1b05204193e4 due to a miscompile (PR #71598)

[via llvm-commits]

alexfh wrote:

Given no objections and no alternative solutions so far and that this is a real correctness problem, I'm going to move forward with the revert.

https://github.com/llvm/llvm-project/pull/71598