I’m in the process of flipping some always-failing tests to XFAIL. I seem to recall a few of these were passing on my older Ubuntu 12.04 setup where these tests were being built and run with gcc 4.8.2 vs. the Ubuntu clang 3.5 compiler I’m using now. If anybody hits the tests passing when I’ve got them marked fail (they’ll show up as “u” - unexpected success), let me know and I’ll dig in and see if it’s a compiler-specific failure. (Some tests might pass on clang and fail with gcc, or vice versa, depending on what they’re testing).
The tests I’m marking as XFAIL on Linux (via @expectedFailureLinux(“llvm.org/pr#”)) are consistently failing for me. Otherwise, if they’re intermittent, I’m disabling them.