[PATCH] D129089: [BOLT] Fix concurrency bugs in the instrumentation runtime

[Michał Chojnowski via Phabricator via llvm-commits]

michoecho added a comment.

In D129089#3628617 <https://reviews.llvm.org/D129089#3628617>, @ayermolo wrote:

> Why can't we use standard std::lock_guard here?

The comments in `bolt/runtime/instr.cpp` say:

  // Since this code is intended to be inserted into any executable, we decided to
  // make it standalone and do not depend on any external libraries (i.e. language
  // support libraries, such as glibc or stdc++).


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https://reviews.llvm.org/D129089