[Tsan] Do not flush all streams on exit
Differential Revision: http://reviews.llvm.org/D6462


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@223121 91177308-0d34-0410-b5e6-96231b3b80d8
[Tsan] Fix the atomic_race.cc test to pass on systems with high loads
Differential Revision: http://reviews.llvm.org/D6478


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@223122 91177308-0d34-0410-b5e6-96231b3b80d8