[llvm] [llvm] Add serialization to uint32_t for FixedPointSemantics (PR #110288)

[Timm Baeder via llvm-commits]

tbaederr wrote:

> What is the serialization for ?

I use this in the bytecode interpreter in clang.

> would that prevent changing the struct layout in the future ?

It forces the struct to be 32bit right now, but there is already a `static_assert` for this in llvm.



> Other than that, looks good to me. But I don't know how much my approval matters.



https://github.com/llvm/llvm-project/pull/110288