ASan: fix one more test case for pipefail

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@187881 91177308-0d34-0410-b5e6-96231b3b80d8
[TSan] Let the users suppress use-after-free errors using the "race:" suppressions.

If there's a race between a memory access and a free() call in the client program,
it can be reported as a use-after-free (if the access occurs after the free()) or an ordinary race
(if free() occurs after the access).
We've decided to use a single "race:" prefix for both cases instead of introducing a "use-after-free:" one,
because in many cases this allows us to keep a single suppression for both the use-after-free and free-after-use.

This may be misleading if the use-after-free occurs in a non-racy way (e.g. in a single-threaded program).
But normally such bugs shall not be suppressed.



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@187885 91177308-0d34-0410-b5e6-96231b3b80d8
[TSan] Fix free_race.c by removing `not` from the test invocation that doesn't fail.



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@187889 91177308-0d34-0410-b5e6-96231b3b80d8
DataFlowSanitizer; compiler-rt changes.

DataFlowSanitizer is a generalised dynamic data flow analysis.

Unlike other Sanitizer tools, this tool is not designed to detect a
specific class of bugs on its own.  Instead, it provides a generic
dynamic data flow analysis framework to be used by clients to help
detect application-specific issues within their own code.

Differential Revision: http://llvm-reviews.chandlerc.com/D967

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@187924 91177308-0d34-0410-b5e6-96231b3b80d8
Simplify (and fix) check-dfsan configs

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@187968 91177308-0d34-0410-b5e6-96231b3b80d8
[sanitizer] ASan/MSan tests for r187967.

r187967: Disable inlining between sanitized and non-sanitized functions.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@187971 91177308-0d34-0410-b5e6-96231b3b80d8