[llvm-branch-commits] [llvm] [BOLT] Delta-encode offsets in BAT (PR #76900)

[Amir Ayupov via llvm-branch-commits]

https://github.com/aaupov created https://github.com/llvm/llvm-project/pull/76900

This change further reduces the size of BAT:
- large binary: to 13073904 bytes (0.34x original),
- medium binary: to 1703116 bytes (0.29x original),
- small binary: to 436 bytes (0.30x original).

Test Plan: Updated bolt/test/X86/bolt-address-translation.test