[all-commits] [llvm/llvm-project] b12cd6: [lldb] Use batched memory reads in ClassDescriptor...

[Felipe de Azevedo Piovezan via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b12cd6aa2faac1af50ee332c30a3e863dc462d7d
      https://github.com/llvm/llvm-project/commit/b12cd6aa2faac1af50ee332c30a3e863dc462d7d
  Author: Felipe de Azevedo Piovezan <fpiovezan at apple.com>
  Date:   2026-06-04 (Thu, 04 Jun 2026)

  Changed paths:
    M lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCClassDescriptorV2.cpp
    M lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCClassDescriptorV2.h

  Log Message:
  -----------
  [lldb] Use batched memory reads in ClassDescriptorV2::relative_list_entry_t (#201284)

This reduces the number of memory reads performed when reading Objective
C classes metadata.
Note: these addresses are indeed sequential (with a small offset between
them), but there are so many of them that they would not fit into a
single Process::ReadMemory cache line, so this is still a win, and it
also puts the code into the right shape for vectorizing the next read in
the same loop, which will see the biggest savings.



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