[llvm-branch-commits] [llvm] [release/18.x] Backport fixes for ARM64EC thunk generation (PR #92580)

[Tom Stellard via llvm-branch-commits]

tstellar wrote:

@dpaoliello (or anyone else). If you would like to add a note about this fix in the release notes (completely optional). Please reply to this comment with a one or two sentence description of the fix.  When you are done, please add the release:note label to this PR.

https://github.com/llvm/llvm-project/pull/92580