[asan] Test that LargeAllocator unpoisons memory before releasing it to the OS.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@195243 91177308-0d34-0410-b5e6-96231b3b80d8
[msan] Unpoison memory that is returned to the OS and flush its shadow.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@195244 91177308-0d34-0410-b5e6-96231b3b80d8
[msan] Tweak io_submit syscall hook.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@195246 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] Fix OSX tests.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@195250 91177308-0d34-0410-b5e6-96231b3b80d8
[tsan] add a run-time-side regression test for https://code.google.com/p/thread-sanitizer/issues/detail?id=40 (tsan-hostile load speculation)

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@195325 91177308-0d34-0410-b5e6-96231b3b80d8
[tsan] use FileCheck in race_on_speculative_load.cc

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@195331 91177308-0d34-0410-b5e6-96231b3b80d8