[asan] add a test for use-after-return and exceptions and fix it. Not 100% sure this is a complete fix, will keep looking for harder cases.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190603 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] a bit of performance improvement in fake stack, generalized one test, fixed android build of another test

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190606 91177308-0d34-0410-b5e6-96231b3b80d8
[dfsan] Add a few easy functions to the ABI list.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190653 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] inline PoisonShadow in FakeStack to get ~10% speedup

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190660 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] use TLS on Linux to get the FakeStack. Saves 15% performance

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190661 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] undo the previous commit since TLS hack breaks with signals... :(

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190662 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] second attempt to use TLS with fake stack. This time it looks (more) async-signal safe.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190663 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] more performance to FakeStack: a) don't used atomic exchange, instead rely on regular load and store and other signal-safe logic; b) remove allocated_from_size_class_mask_ which is not helping much anyway; Another 10% speedup

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190664 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] don't record the class_id in FakeFrame (scratching the last bits of performance)

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190666 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Temporary disable UAR unit test on Android due to https://code.google.com/p/address-sanitizer/issues/detail?id=222

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190667 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] Android does not have TLS

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190669 91177308-0d34-0410-b5e6-96231b3b80d8