[PATCH] D122922: [lld][common][lld-macho][lld-coff] Support per-thread allocators and StringSavers

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added a comment.

In the `LLD_THREAD_SAFE_MEMORY` code path, `make<Foo>(...)` now has significantly larger overhead due to the `pthread_getspecific` call (via `llvm/Support/ThreadLocal.h`).
A large number of `make<...>` instantiations in lld do not benefit from per-thread allocation.
So my thought (I mentioned this somewhere) is that we introduce a new `make` utility, let the few that actually benefit use it, instead of hijacking all `make<...>` to be pure per-thread.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D122922/new/

https://reviews.llvm.org/D122922