[llvm-branch-commits] [llvm] release/22.x: x86: fix musttail sibcall miscompilation (#168956) (PR #176470)

[Folkert de Vries via llvm-branch-commits]

folkertdev wrote:

For context, rust has high standards for code being portable. Without x86 support, moving forward with guaranteed tail calls is a non-starter. With it, we can continue to make progress on the (still experimental) implementation.

https://github.com/llvm/llvm-project/pull/176470