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tsan: don't create sync objects on acquire

Authored by dvyukov on Jun 27 2016, 4:14 AM.

Description

tsan: don't create sync objects on acquire

Creating sync objects on acquire is pointless:
acquire of a just created sync object if a no-op.

llvm-svn: 273862

Details

Committed
dvyukovJun 27 2016, 4:14 AM
Parents
rG3044c34c455a: Fix bad link for P0006
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