[llvm] [llvm-exegesis] Use hex values when parsing memory mappings (PR #72620)

[Aiden Grossman via llvm-commits]

boomanaiden154 wrote:

> Reference

Right, this change won't be backwards compatible. It was a fairly significant oversight on my part when doing the implementation, and I'd really like to get this fixed properly (along with the definition sizes) early on while there are relatively few users of this feature and relatively little external tooling that relies on it.

I think just doing the change now and adding a note in the release notes at this point would keep everything clean without having to introduce additional annotations/keep the very unintuitive interface that we have currently.

https://github.com/llvm/llvm-project/pull/72620