SuccessChanges

Summary

  1. [MachineSink] add threshold in machinesink pass to reduce compiling time. (details)
  2. [asan][memprof] Declare _DYNAMIC and fix -Wparentheses (details)
Commit 31c2b93d83f63ce7f9bb4977f58de2e00bf18e0f by czhengsz
[MachineSink] add threshold in machinesink pass to reduce compiling time.
The file was modifiedllvm/lib/CodeGen/MachineSink.cpp
Commit fde3ae88ee4236d6ecb8178c6c893df5a5a04437 by i
[asan][memprof] Declare _DYNAMIC and fix -Wparentheses

Declare `extern ElfW(Dyn) _DYNAMIC[];` so that it will trivially work on musl.
The file was modifiedcompiler-rt/lib/asan/asan_linux.cpp
The file was modifiedcompiler-rt/lib/memprof/memprof_linux.cpp
The file was modifiedcompiler-rt/lib/memprof/memprof_mapping.h