[llvm] [LoopRotate][coroutines] Avoid hoisting addresses of thread-local variables outside loops in coroutines (PR #81937)

[Alan Zhao via llvm-commits]

alanzhao1 wrote:

> s/caching/hoisting

Fixed the PR description, but I need to wait until this has been approved before fixing the actual commit message since that requires rewriting history and force pushing.

https://github.com/llvm/llvm-project/pull/81937