[all-commits] [llvm/llvm-project] 05e87a: Reland "[MC][NFC] Make ELFUniquingMap a StringMap ...

[aengelke via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 05e87a583ce2680fc7309491c8bc23fd0e3bd049
      https://github.com/llvm/llvm-project/commit/05e87a583ce2680fc7309491c8bc23fd0e3bd049
  Author: aengelke <engelke at in.tum.de>
  Date:   2024-06-11 (Tue, 11 Jun 2024)

  Changed paths:
    M llvm/include/llvm/MC/MCContext.h
    M llvm/lib/MC/MCContext.cpp

  Log Message:
  -----------
  Reland "[MC][NFC] Make ELFUniquingMap a StringMap (#95006)" (#95030)

This avoids std::map, which is slow, and uses a StringMap. Section name,
group name, linked-to name and unique id are encoded into the key for
fast lookup.

This gives a measurable performance boost for applications that compile
many small object files (e.g., functions in JIT compilers).

---

Now also the second case works properly. That's what happens when you do
that last refactoring without re-running all tests... sorry.



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