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Summary

  1. Revert "[Asan] Cleanup atomic usage in allocator" (details)
Commit b2e27a86c18e13043be0ed7bf2855d313cc0ac38 by Vitaly Buka
Revert "[Asan] Cleanup atomic usage in allocator"

Crashes on PPC

This reverts commit eb87e1dbcfdf15c0711146ff3e6b2e1e40c8863a.
The file was modifiedcompiler-rt/lib/asan/asan_allocator.cpp