[compiler-rt] [clang] [flang] [llvm] [clang-tools-extra] [mlir] [mlir][tosa] Add dialect version. (PR #79514)

[Mehdi Amini via cfe-commits]

joker-eph wrote:

> To be able to flag incompatible bytecode files rather than have it fail later in mysterious ways. E.g., allows for a more strict failure.

That would require some sort of principles and policy around the changes that affect the serialization of this and the maintenance of this version number, I haven't seen a discussion about this: did I miss it?

Also, TOSA isn't a hermetic dialect: it includes other IR entities from other dialects, and changing these would impact this story as well.

https://github.com/llvm/llvm-project/pull/79514