[llvm-branch-commits] [clang] [KeyInstr][Clang] Ret atom (PR #134652)

[Orlando Cazalet-Hyams via llvm-branch-commits]

OCHyams wrote:

Keeping in draft till the patches below this in the stack are merged, as this touches all their tests. Unfortunately the diff is going to be messed up till then too due to various branch retargeting and rebasing.

https://github.com/llvm/llvm-project/pull/134652