[all-commits] [llvm/llvm-project] f57090: [lld/mac] Cache file IDs of symbols in emitStabs f...

[Michael Eisel via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f5709066e3b05b27eb95b8b42d9d01daca48d93c
      https://github.com/llvm/llvm-project/commit/f5709066e3b05b27eb95b8b42d9d01daca48d93c
  Author: Michael Eisel <michael.eisel at gmail.com>
  Date:   2022-06-01 (Wed, 01 Jun 2022)

  Changed paths:
    M lld/MachO/SyntheticSections.cpp

  Log Message:
  -----------
  [lld/mac] Cache file IDs of symbols in emitStabs for faster sorting

This reduces the time emitStabs() takes by about 275ms, or 3% of overall
linking time for the project I'm on. Although the parent function is run in
parallel, it's one of the slowest tasks in that concurrent batch (I have
another optimization for another slow task as well).

Differential Revision: https://reviews.llvm.org/D126785