[all-commits] [llvm/llvm-project] 8bbd07: [clang] Allocate `Module` instances in `BumpPtrAll...

[Jan Svoboda via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8bbd0797d4b8aa1d993f587eb2dfd9a89df1f406
      https://github.com/llvm/llvm-project/commit/8bbd0797d4b8aa1d993f587eb2dfd9a89df1f406
  Author: Jan Svoboda <jan_svoboda at apple.com>
  Date:   2024-10-22 (Tue, 22 Oct 2024)

  Changed paths:
    M clang/include/clang/Basic/Module.h
    M clang/include/clang/Lex/ModuleMap.h
    M clang/lib/Basic/Module.cpp
    M clang/lib/Lex/ModuleMap.cpp
    M clang/lib/Lex/Pragma.cpp

  Log Message:
  -----------
  [clang] Allocate `Module` instances in `BumpPtrAllocator` (#112795)

In `clang-scan-deps`, we're creating lots of `Module` instances.
Allocating them all in a bump-pointer allocator reduces the number of
retired instructions by 1-1.5% on my workload.



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