[all-commits] [llvm/llvm-project] ee09f7: [MC][NFC] Reduce Address2ProbesMap size

[Amir Ayupov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ee09f7d1fc173f2b495838c925f2cf39a2b55369
      https://github.com/llvm/llvm-project/commit/ee09f7d1fc173f2b495838c925f2cf39a2b55369
  Author: Amir Ayupov <aaupov at fb.com>
  Date:   2024-08-26 (Mon, 26 Aug 2024)

  Changed paths:
    M bolt/lib/Profile/DataAggregator.cpp
    M bolt/lib/Profile/YAMLProfileWriter.cpp
    M bolt/lib/Rewrite/PseudoProbeRewriter.cpp
    M llvm/include/llvm/MC/MCPseudoProbe.h
    M llvm/lib/MC/MCPseudoProbe.cpp
    M llvm/tools/llvm-profgen/ProfileGenerator.cpp

  Log Message:
  -----------
  [MC][NFC] Reduce Address2ProbesMap size

Replace the map from addresses to list of probes with a flat vector
containing probe references sorted by their addresses.

Reduces pseudo probe parsing time from 9.56s to 8.59s and peak RSS from
9.66 GiB to 9.08 GiB as part of perf2bolt processing a large binary.

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

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

Reviewed By: wlei-llvm

Pull Request: https://github.com/llvm/llvm-project/pull/102904



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