[llvm] [X86][APX] Promote 8/16-bit LEA to 32-bit to avoid partial dependence (PR #161051)

[Phoebe Wang via llvm-commits]

phoebewang wrote:

> Loss of In64BitMode checks?

Yes, it's only used by MC for disassembling. Here we just use the nodes during codegen.

https://github.com/llvm/llvm-project/pull/161051