[llvm-branch-commits] [BOLT] Match blocks with calls as anchors (PR #98390)

[Shaw Young via llvm-branch-commits]

https://github.com/shawbyoung created https://github.com/llvm/llvm-project/pull/98390

Expands the scope of possible block matches by hashing blocks by their
lexicographically ordered function names to provide a looser level of
matching past opcode hash matching in StaleProfileMatching.

Test Plan: added match-functions-with-calls-as-anchors.test.