Amir Ayupov a79cf0228e [MC][NFC] Use vector for GUIDProbeFunctionMap ...

Replace unordered_map with a vector. Pre-parse the section to statically
allocate storage. Use BumpPtrAllocator for FuncName strings, keep
StringRef in FuncDesc.

Reduces peak RSS of pseudo probe parsing from 9.08 GiB to 8.89 GiB as
part of perf2bolt with a large binary.

Test Plan:
```
bin/llvm-lit -sv test/tools/llvm-profgen
```

Reviewers: wlei-llvm, rafaelauler, dcci, maksfb, ayermolo

Reviewed By: wlei-llvm

Pull Request: https://github.com/llvm/llvm-project/pull/102905

2024-08-26 09:15:53 -07:00

26 KiB

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